link-wechat-web-pc/phone/sipphone/phone.js

(function webpackUniversalModuleDefinition(root, factory) {
	if(typeof exports === 'object' && typeof module === 'object')
		module.exports = factory();
	else if(typeof define === 'function' && define.amd)
		define([], factory);
	else if(typeof exports === 'object')
		exports["PhoneJs"] = factory();
	else
		root["PhoneJs"] = factory();
})(typeof self !== 'undefined' ? self : this, function() {
return  (function(modules) { // webpackBootstrap
 	// The module cache
 	var installedModules = {};

 	// The require function
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 			i: moduleId,
 			l: false,
 			exports: {}
 		};

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 		module.l = true;

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 		return module.exports;
 	}


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 	__webpack_require__.m = modules;

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 	__webpack_require__.c = installedModules;

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 				configurable: false,
 				enumerable: true,
 				get: getter
 			});
 		}
 	};

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 	__webpack_require__.n = function(module) {
 		var getter = module && module.__esModule ?
 			function getDefault() { return module['default']; } :
 			function getModuleExports() { return module; };
 		__webpack_require__.d(getter, 'a', getter);
 		return getter;
 	};

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 	__webpack_require__.o = function(object, property) { return Object.prototype.hasOwnProperty.call(object, property); };

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 	__webpack_require__.p = "";

 	// Load entry module and return exports
 	return __webpack_require__(__webpack_require__.s = 23);
 })
/************************************************************************/
 ([
/* 0 */
(function(module, exports, __webpack_require__) {

/* WEBPACK VAR INJECTION */(function(process) {/* eslint-env browser */

/**
 * This is the web browser implementation of `debug()`.
 */
exports.log = log;
exports.formatArgs = formatArgs;
exports.save = save;
exports.load = load;
exports.useColors = useColors;
exports.storage = localstorage();
/**
 * Colors.
 */

exports.colors = ['#0000CC', '#0000FF', '#0033CC', '#0033FF', '#0066CC', '#0066FF', '#0099CC', '#0099FF', '#00CC00', '#00CC33', '#00CC66', '#00CC99', '#00CCCC', '#00CCFF', '#3300CC', '#3300FF', '#3333CC', '#3333FF', '#3366CC', '#3366FF', '#3399CC', '#3399FF', '#33CC00', '#33CC33', '#33CC66', '#33CC99', '#33CCCC', '#33CCFF', '#6600CC', '#6600FF', '#6633CC', '#6633FF', '#66CC00', '#66CC33', '#9900CC', '#9900FF', '#9933CC', '#9933FF', '#99CC00', '#99CC33', '#CC0000', '#CC0033', '#CC0066', '#CC0099', '#CC00CC', '#CC00FF', '#CC3300', '#CC3333', '#CC3366', '#CC3399', '#CC33CC', '#CC33FF', '#CC6600', '#CC6633', '#CC9900', '#CC9933', '#CCCC00', '#CCCC33', '#FF0000', '#FF0033', '#FF0066', '#FF0099', '#FF00CC', '#FF00FF', '#FF3300', '#FF3333', '#FF3366', '#FF3399', '#FF33CC', '#FF33FF', '#FF6600', '#FF6633', '#FF9900', '#FF9933', '#FFCC00', '#FFCC33'];
/**
 * Currently only WebKit-based Web Inspectors, Firefox >= v31,
 * and the Firebug extension (any Firefox version) are known
 * to support "%c" CSS customizations.
 *
 * TODO: add a `localStorage` variable to explicitly enable/disable colors
 */
// eslint-disable-next-line complexity

function useColors() {
  // NB: In an Electron preload script, document will be defined but not fully
  // initialized. Since we know we're in Chrome, we'll just detect this case
  // explicitly
  if (typeof window !== 'undefined' && window.process && (window.process.type === 'renderer' || window.process.__nwjs)) {
    return true;
  } // Internet Explorer and Edge do not support colors.


  if (typeof navigator !== 'undefined' && navigator.userAgent && navigator.userAgent.toLowerCase().match(/(edge|trident)\/(\d+)/)) {
    return false;
  } // Is webkit? http://stackoverflow.com/a/16459606/376773
  // document is undefined in react-native: https://github.com/facebook/react-native/pull/1632


  return typeof document !== 'undefined' && document.documentElement && document.documentElement.style && document.documentElement.style.WebkitAppearance || // Is firebug? http://stackoverflow.com/a/398120/376773
  typeof window !== 'undefined' && window.console && (window.console.firebug || window.console.exception && window.console.table) || // Is firefox >= v31?
  // https://developer.mozilla.org/en-US/docs/Tools/Web_Console#Styling_messages
  typeof navigator !== 'undefined' && navigator.userAgent && navigator.userAgent.toLowerCase().match(/firefox\/(\d+)/) && parseInt(RegExp.$1, 10) >= 31 || // Double check webkit in userAgent just in case we are in a worker
  typeof navigator !== 'undefined' && navigator.userAgent && navigator.userAgent.toLowerCase().match(/applewebkit\/(\d+)/);
}
/**
 * Colorize log arguments if enabled.
 *
 * @api public
 */


function formatArgs(args) {
  args[0] = (this.useColors ? '%c' : '') + this.namespace + (this.useColors ? ' %c' : ' ') + args[0] + (this.useColors ? '%c ' : ' ') + '+' + module.exports.humanize(this.diff);

  if (!this.useColors) {
    return;
  }

  const c = 'color: ' + this.color;
  args.splice(1, 0, c, 'color: inherit'); // The final "%c" is somewhat tricky, because there could be other
  // arguments passed either before or after the %c, so we need to
  // figure out the correct index to insert the CSS into

  let index = 0;
  let lastC = 0;
  args[0].replace(/%[a-zA-Z%]/g, match => {
    if (match === '%%') {
      return;
    }

    index++;

    if (match === '%c') {
      // We only are interested in the *last* %c
      // (the user may have provided their own)
      lastC = index;
    }
  });
  args.splice(lastC, 0, c);
}
/**
 * Invokes `console.log()` when available.
 * No-op when `console.log` is not a "function".
 *
 * @api public
 */


function log(...args) {
  // This hackery is required for IE8/9, where
  // the `console.log` function doesn't have 'apply'
  return typeof console === 'object' && console.log && console.log(...args);
}
/**
 * Save `namespaces`.
 *
 * @param {String} namespaces
 * @api private
 */


function save(namespaces) {
  try {
    if (namespaces) {
      exports.storage.setItem('debug', namespaces);
    } else {
      exports.storage.removeItem('debug');
    }
  } catch (error) {// Swallow
    // XXX (@Qix-) should we be logging these?
  }
}
/**
 * Load `namespaces`.
 *
 * @return {String} returns the previously persisted debug modes
 * @api private
 */


function load() {
  let r;

  try {
    r = exports.storage.getItem('debug');
  } catch (error) {} // Swallow
  // XXX (@Qix-) should we be logging these?
  // If debug isn't set in LS, and we're in Electron, try to load $DEBUG


  if (!r && typeof process !== 'undefined' && 'env' in process) {
    r = process.env.DEBUG;
  }

  return r;
}
/**
 * Localstorage attempts to return the localstorage.
 *
 * This is necessary because safari throws
 * when a user disables cookies/localstorage
 * and you attempt to access it.
 *
 * @return {LocalStorage}
 * @api private
 */


function localstorage() {
  try {
    // TVMLKit (Apple TV JS Runtime) does not have a window object, just localStorage in the global context
    // The Browser also has localStorage in the global context.
    return localStorage;
  } catch (error) {// Swallow
    // XXX (@Qix-) should we be logging these?
  }
}

module.exports = __webpack_require__(29)(exports);
const {
  formatters
} = module.exports;
/**
 * Map %j to `JSON.stringify()`, since no Web Inspectors do that by default.
 */

formatters.j = function (v) {
  try {
    return JSON.stringify(v);
  } catch (error) {
    return '[UnexpectedJSONParseError]: ' + error.message;
  }
};
/* WEBPACK VAR INJECTION */}.call(exports, __webpack_require__(15)))

}),
/* 1 */
(function(module, exports, __webpack_require__) {

"use strict";


var pkg = __webpack_require__(12);

module.exports = {
  USER_AGENT: "".concat(pkg.title, " ").concat(pkg.version),
  // SIP scheme.
  SIP: 'sip',
  SIPS: 'sips',
  // End and Failure causes.
  causes: {
    // Generic error causes.
    CONNECTION_ERROR: 'Connection Error',
    REQUEST_TIMEOUT: 'Request Timeout',
    SIP_FAILURE_CODE: 'SIP Failure Code',
    INTERNAL_ERROR: 'Internal Error',
    // SIP error causes.
    BUSY: 'Busy',
    REJECTED: 'Rejected',
    REDIRECTED: 'Redirected',
    UNAVAILABLE: 'Unavailable',
    NOT_FOUND: 'Not Found',
    ADDRESS_INCOMPLETE: 'Address Incomplete',
    INCOMPATIBLE_SDP: 'Incompatible SDP',
    MISSING_SDP: 'Missing SDP',
    AUTHENTICATION_ERROR: 'Authentication Error',
    // Session error causes.
    BYE: 'Terminated',
    WEBRTC_ERROR: 'WebRTC Error',
    CANCELED: 'Canceled',
    NO_ANSWER: 'No Answer',
    EXPIRES: 'Expires',
    NO_ACK: 'No ACK',
    DIALOG_ERROR: 'Dialog Error',
    USER_DENIED_MEDIA_ACCESS: 'User Denied Media Access',
    BAD_MEDIA_DESCRIPTION: 'Bad Media Description',
    RTP_TIMEOUT: 'RTP Timeout'
  },
  SIP_ERROR_CAUSES: {
    REDIRECTED: [300, 301, 302, 305, 380],
    BUSY: [486, 600],
    REJECTED: [403, 603],
    NOT_FOUND: [404, 604],
    UNAVAILABLE: [480, 410, 408, 430],
    ADDRESS_INCOMPLETE: [484, 424],
    INCOMPATIBLE_SDP: [488, 606],
    AUTHENTICATION_ERROR: [401, 407]
  },
  // SIP Methods.
  ACK: 'ACK',
  BYE: 'BYE',
  CANCEL: 'CANCEL',
  INFO: 'INFO',
  INVITE: 'INVITE',
  MESSAGE: 'MESSAGE',
  NOTIFY: 'NOTIFY',
  OPTIONS: 'OPTIONS',
  REGISTER: 'REGISTER',
  REFER: 'REFER',
  UPDATE: 'UPDATE',
  SUBSCRIBE: 'SUBSCRIBE',

  /* SIP Response Reasons
   * DOC: https://www.iana.org/assignments/sip-parameters
   * Copied from https://github.com/versatica/OverSIP/blob/master/lib/oversip/sip/constants.rb#L7
   */
  REASON_PHRASE: {
    100: 'Trying',
    180: 'Ringing',
    181: 'Call Is Being Forwarded',
    182: 'Queued',
    183: 'Session Progress',
    199: 'Early Dialog Terminated',
    // draft-ietf-sipcore-199
    200: 'OK',
    202: 'Accepted',
    // RFC 3265
    204: 'No Notification',
    // RFC 5839
    300: 'Multiple Choices',
    301: 'Moved Permanently',
    302: 'Moved Temporarily',
    305: 'Use Proxy',
    380: 'Alternative Service',
    400: 'Bad Request',
    401: 'Unauthorized',
    402: 'Payment Required',
    403: 'Forbidden',
    404: 'Not Found',
    405: 'Method Not Allowed',
    406: 'Not Acceptable',
    407: 'Proxy Authentication Required',
    408: 'Request Timeout',
    410: 'Gone',
    412: 'Conditional Request Failed',
    // RFC 3903
    413: 'Request Entity Too Large',
    414: 'Request-URI Too Long',
    415: 'Unsupported Media Type',
    416: 'Unsupported URI Scheme',
    417: 'Unknown Resource-Priority',
    // RFC 4412
    420: 'Bad Extension',
    421: 'Extension Required',
    422: 'Session Interval Too Small',
    // RFC 4028
    423: 'Interval Too Brief',
    424: 'Bad Location Information',
    // RFC 6442
    428: 'Use Identity Header',
    // RFC 4474
    429: 'Provide Referrer Identity',
    // RFC 3892
    430: 'Flow Failed',
    // RFC 5626
    433: 'Anonymity Disallowed',
    // RFC 5079
    436: 'Bad Identity-Info',
    // RFC 4474
    437: 'Unsupported Certificate',
    // RFC 4744
    438: 'Invalid Identity Header',
    // RFC 4744
    439: 'First Hop Lacks Outbound Support',
    // RFC 5626
    440: 'Max-Breadth Exceeded',
    // RFC 5393
    469: 'Bad Info Package',
    // draft-ietf-sipcore-info-events
    470: 'Consent Needed',
    // RFC 5360
    478: 'Unresolvable Destination',
    // Custom code copied from Kamailio.
    480: 'Temporarily Unavailable',
    481: 'Call/Transaction Does Not Exist',
    482: 'Loop Detected',
    483: 'Too Many Hops',
    484: 'Address Incomplete',
    485: 'Ambiguous',
    486: 'Busy Here',
    487: 'Request Terminated',
    488: 'Not Acceptable Here',
    489: 'Bad Event',
    // RFC 3265
    491: 'Request Pending',
    493: 'Undecipherable',
    494: 'Security Agreement Required',
    // RFC 3329
    500: 'JsSIP Internal Error',
    501: 'Not Implemented',
    502: 'Bad Gateway',
    503: 'Service Unavailable',
    504: 'Server Time-out',
    505: 'Version Not Supported',
    513: 'Message Too Large',
    580: 'Precondition Failure',
    // RFC 3312
    600: 'Busy Everywhere',
    603: 'Decline',
    604: 'Does Not Exist Anywhere',
    606: 'Not Acceptable'
  },
  ALLOWED_METHODS: 'INVITE,ACK,CANCEL,BYE,UPDATE,MESSAGE,OPTIONS,REFER,INFO',
  ACCEPTED_BODY_TYPES: 'application/sdp, application/dtmf-relay',
  MAX_FORWARDS: 69,
  SESSION_EXPIRES: 90,
  MIN_SESSION_EXPIRES: 60
};

 }),

(function(module, exports, __webpack_require__) {

"use strict";


function _typeof(obj) {
  if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") {
    _typeof = function _typeof(obj) {
      return typeof obj;
    };
  } else {
    _typeof = function _typeof(obj) {
      return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj;
    };
  }

  return _typeof(obj);
}

var JsSIP_C = __webpack_require__(1);

var URI = __webpack_require__(8);

var Grammar = __webpack_require__(3);

exports.str_utf8_length = function (string) {
  return unescape(encodeURIComponent(string)).length;
}; // Used by 'hasMethods'.


var isFunction = exports.isFunction = function (fn) {
  if (fn !== undefined) {
    return Object.prototype.toString.call(fn) === '[object Function]' ? true : false;
  } else {
    return false;
  }
};

exports.isString = function (str) {
  if (str !== undefined) {
    return Object.prototype.toString.call(str) === '[object String]' ? true : false;
  } else {
    return false;
  }
};

exports.isDecimal = function (num) {
  return !isNaN(num) && parseFloat(num) === parseInt(num, 10);
};

exports.isEmpty = function (value) {
  return value === null || value === '' || value === undefined || Array.isArray(value) && value.length === 0 || typeof value === 'number' && isNaN(value);
};

exports.hasMethods = function (obj) {
  for (var _len = arguments.length, methodNames = new Array(_len > 1 ? _len - 1 : 0), _key = 1; _key < _len; _key++) {
    methodNames[_key - 1] = arguments[_key];
  }

  for (var _i = 0; _i < methodNames.length; _i++) {
    var methodName = methodNames[_i];

    if (isFunction(obj[methodName])) {
      return false;
    }
  }

  return true;
}; // Used by 'newTag'.


var createRandomToken = exports.createRandomToken = function (size) {
  var base = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : 32;
  var i,
      r,
      token = '';

  for (i = 0; i < size; i++) {
    r = Math.random() * base | 0;
    token += r.toString(base);
  }

  return token;
};

exports.newTag = function () {
  return createRandomToken(10);
}; // https://stackoverflow.com/users/109538/broofa.


exports.newUUID = function () {
  var UUID = 'xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx'.replace(/[xy]/g, function (c) {
    var r = Math.random() * 16 | 0,
        v = c === 'x' ? r : r & 0x3 | 0x8;
    return v.toString(16);
  });
  return UUID;
};

exports.hostType = function (host) {
  if (!host) {
    return;
  } else {
    host = Grammar.parse(host, 'host');

    if (host !== -1) {
      return host.host_type;
    }
  }
};
/**
* Hex-escape a SIP URI user.
* Don't hex-escape ':' (%3A), '+' (%2B), '?' (%3F"), '/' (%2F).
*
* Used by 'normalizeTarget'.
*/


var escapeUser = exports.escapeUser = function (user) {
  return encodeURIComponent(decodeURIComponent(user)).replace(/%3A/ig, ':').replace(/%2B/ig, '+').replace(/%3F/ig, '?').replace(/%2F/ig, '/');
};
/**
* Normalize SIP URI.
* NOTE: It does not allow a SIP URI without username.
* Accepts 'sip', 'sips' and 'tel' URIs and convert them into 'sip'.
* Detects the domain part (if given) and properly hex-escapes the user portion.
* If the user portion has only 'tel' number symbols the user portion is clean of 'tel' visual separators.
*/


exports.normalizeTarget = function (target, domain) {
  // If no target is given then raise an error.
  if (!target) {
    return; // If a URI instance is given then return it.
  } else if (target instanceof URI) {
    return target; // If a string is given split it by '@':
    // - Last fragment is the desired domain.
    // - Otherwise append the given domain argument.
  } else if (typeof target === 'string') {
    var target_array = target.split('@');
    var target_user;
    var target_domain;

    switch (target_array.length) {
      case 1:
        if (!domain) {
          return;
        }

        target_user = target;
        target_domain = domain;
        break;

      case 2:
        target_user = target_array[0];
        target_domain = target_array[1];
        break;

      default:
        target_user = target_array.slice(0, target_array.length - 1).join('@');
        target_domain = target_array[target_array.length - 1];
    } // Remove the URI scheme (if present).


    target_user = target_user.replace(/^(sips?|tel):/i, ''); // Remove 'tel' visual separators if the user portion just contains 'tel' number symbols.

    if (/^[-.()]*\+?[0-9\-.()]+$/.test(target_user)) {
      target_user = target_user.replace(/[-.()]/g, '');
    } // Build the complete SIP URI.


    target = "".concat(JsSIP_C.SIP, ":").concat(escapeUser(target_user), "@").concat(target_domain); // Finally parse the resulting URI.

    var uri;

    if (uri = URI.parse(target)) {
      return uri;
    } else {
      return;
    }
  } else {
    return;
  }
};

exports.headerize = function (string) {
  var exceptions = {
    'Call-Id': 'Call-ID',
    'Cseq': 'CSeq',
    'Www-Authenticate': 'WWW-Authenticate'
  };
  var name = string.toLowerCase().replace(/_/g, '-').split('-');
  var hname = '';
  var parts = name.length;
  var part;

  for (part = 0; part < parts; part++) {
    if (part !== 0) {
      hname += '-';
    }

    hname += name[part].charAt(0).toUpperCase() + name[part].substring(1);
  }

  if (exceptions[hname]) {
    hname = exceptions[hname];
  }

  return hname;
};

exports.sipErrorCause = function (status_code) {
  for (var cause in JsSIP_C.SIP_ERROR_CAUSES) {
    if (JsSIP_C.SIP_ERROR_CAUSES[cause].indexOf(status_code) !== -1) {
      return JsSIP_C.causes[cause];
    }
  }

  return JsSIP_C.causes.SIP_FAILURE_CODE;
};
/**
* Generate a random Test-Net IP (https://tools.ietf.org/html/rfc5735)
*/


exports.getRandomTestNetIP = function () {
  function getOctet(from, to) {
    return Math.floor(Math.random() * (to - from + 1) + from);
  }

  return "192.0.2.".concat(getOctet(1, 254));
}; // MD5 (Message-Digest Algorithm) https://www.webtoolkit.info.


exports.calculateMD5 = function (string) {
  function rotateLeft(lValue, iShiftBits) {
    return lValue << iShiftBits | lValue >>> 32 - iShiftBits;
  }

  function addUnsigned(lX, lY) {
    var lX8 = lX & 0x80000000;
    var lY8 = lY & 0x80000000;
    var lX4 = lX & 0x40000000;
    var lY4 = lY & 0x40000000;
    var lResult = (lX & 0x3FFFFFFF) + (lY & 0x3FFFFFFF);

    if (lX4 & lY4) {
      return lResult ^ 0x80000000 ^ lX8 ^ lY8;
    }

    if (lX4 | lY4) {
      if (lResult & 0x40000000) {
        return lResult ^ 0xC0000000 ^ lX8 ^ lY8;
      } else {
        return lResult ^ 0x40000000 ^ lX8 ^ lY8;
      }
    } else {
      return lResult ^ lX8 ^ lY8;
    }
  }

  function doF(x, y, z) {
    return x & y | ~x & z;
  }

  function doG(x, y, z) {
    return x & z | y & ~z;
  }

  function doH(x, y, z) {
    return x ^ y ^ z;
  }

  function doI(x, y, z) {
    return y ^ (x | ~z);
  }

  function doFF(a, b, c, d, x, s, ac) {
    a = addUnsigned(a, addUnsigned(addUnsigned(doF(b, c, d), x), ac));
    return addUnsigned(rotateLeft(a, s), b);
  }

  function doGG(a, b, c, d, x, s, ac) {
    a = addUnsigned(a, addUnsigned(addUnsigned(doG(b, c, d), x), ac));
    return addUnsigned(rotateLeft(a, s), b);
  }

  function doHH(a, b, c, d, x, s, ac) {
    a = addUnsigned(a, addUnsigned(addUnsigned(doH(b, c, d), x), ac));
    return addUnsigned(rotateLeft(a, s), b);
  }

  function doII(a, b, c, d, x, s, ac) {
    a = addUnsigned(a, addUnsigned(addUnsigned(doI(b, c, d), x), ac));
    return addUnsigned(rotateLeft(a, s), b);
  }

  function convertToWordArray(str) {
    var lWordCount;
    var lMessageLength = str.length;
    var lNumberOfWords_temp1 = lMessageLength + 8;
    var lNumberOfWords_temp2 = (lNumberOfWords_temp1 - lNumberOfWords_temp1 % 64) / 64;
    var lNumberOfWords = (lNumberOfWords_temp2 + 1) * 16;
    var lWordArray = new Array(lNumberOfWords - 1);
    var lBytePosition = 0;
    var lByteCount = 0;

    while (lByteCount < lMessageLength) {
      lWordCount = (lByteCount - lByteCount % 4) / 4;
      lBytePosition = lByteCount % 4 * 8;
      lWordArray[lWordCount] = lWordArray[lWordCount] | str.charCodeAt(lByteCount) << lBytePosition;
      lByteCount++;
    }

    lWordCount = (lByteCount - lByteCount % 4) / 4;
    lBytePosition = lByteCount % 4 * 8;
    lWordArray[lWordCount] = lWordArray[lWordCount] | 0x80 << lBytePosition;
    lWordArray[lNumberOfWords - 2] = lMessageLength << 3;
    lWordArray[lNumberOfWords - 1] = lMessageLength >>> 29;
    return lWordArray;
  }

  function wordToHex(lValue) {
    var wordToHexValue = '',
        wordToHexValue_temp = '',
        lByte,
        lCount;

    for (lCount = 0; lCount <= 3; lCount++) {
      lByte = lValue >>> lCount * 8 & 255;
      wordToHexValue_temp = "0".concat(lByte.toString(16));
      wordToHexValue = wordToHexValue + wordToHexValue_temp.substr(wordToHexValue_temp.length - 2, 2);
    }

    return wordToHexValue;
  }

  function utf8Encode(str) {
    str = str.replace(/\r\n/g, '\n');
    var utftext = '';

    for (var n = 0; n < str.length; n++) {
      var _c = str.charCodeAt(n);

      if (_c < 128) {
        utftext += String.fromCharCode(_c);
      } else if (_c > 127 && _c < 2048) {
        utftext += String.fromCharCode(_c >> 6 | 192);
        utftext += String.fromCharCode(_c & 63 | 128);
      } else {
        utftext += String.fromCharCode(_c >> 12 | 224);
        utftext += String.fromCharCode(_c >> 6 & 63 | 128);
        utftext += String.fromCharCode(_c & 63 | 128);
      }
    }

    return utftext;
  }

  var x = [];
  var k, AA, BB, CC, DD, a, b, c, d;
  var S11 = 7,
      S12 = 12,
      S13 = 17,
      S14 = 22;
  var S21 = 5,
      S22 = 9,
      S23 = 14,
      S24 = 20;
  var S31 = 4,
      S32 = 11,
      S33 = 16,
      S34 = 23;
  var S41 = 6,
      S42 = 10,
      S43 = 15,
      S44 = 21;
  string = utf8Encode(string);
  x = convertToWordArray(string);
  a = 0x67452301;
  b = 0xEFCDAB89;
  c = 0x98BADCFE;
  d = 0x10325476;

  for (k = 0; k < x.length; k += 16) {
    AA = a;
    BB = b;
    CC = c;
    DD = d;
    a = doFF(a, b, c, d, x[k + 0], S11, 0xD76AA478);
    d = doFF(d, a, b, c, x[k + 1], S12, 0xE8C7B756);
    c = doFF(c, d, a, b, x[k + 2], S13, 0x242070DB);
    b = doFF(b, c, d, a, x[k + 3], S14, 0xC1BDCEEE);
    a = doFF(a, b, c, d, x[k + 4], S11, 0xF57C0FAF);
    d = doFF(d, a, b, c, x[k + 5], S12, 0x4787C62A);
    c = doFF(c, d, a, b, x[k + 6], S13, 0xA8304613);
    b = doFF(b, c, d, a, x[k + 7], S14, 0xFD469501);
    a = doFF(a, b, c, d, x[k + 8], S11, 0x698098D8);
    d = doFF(d, a, b, c, x[k + 9], S12, 0x8B44F7AF);
    c = doFF(c, d, a, b, x[k + 10], S13, 0xFFFF5BB1);
    b = doFF(b, c, d, a, x[k + 11], S14, 0x895CD7BE);
    a = doFF(a, b, c, d, x[k + 12], S11, 0x6B901122);
    d = doFF(d, a, b, c, x[k + 13], S12, 0xFD987193);
    c = doFF(c, d, a, b, x[k + 14], S13, 0xA679438E);
    b = doFF(b, c, d, a, x[k + 15], S14, 0x49B40821);
    a = doGG(a, b, c, d, x[k + 1], S21, 0xF61E2562);
    d = doGG(d, a, b, c, x[k + 6], S22, 0xC040B340);
    c = doGG(c, d, a, b, x[k + 11], S23, 0x265E5A51);
    b = doGG(b, c, d, a, x[k + 0], S24, 0xE9B6C7AA);
    a = doGG(a, b, c, d, x[k + 5], S21, 0xD62F105D);
    d = doGG(d, a, b, c, x[k + 10], S22, 0x2441453);
    c = doGG(c, d, a, b, x[k + 15], S23, 0xD8A1E681);
    b = doGG(b, c, d, a, x[k + 4], S24, 0xE7D3FBC8);
    a = doGG(a, b, c, d, x[k + 9], S21, 0x21E1CDE6);
    d = doGG(d, a, b, c, x[k + 14], S22, 0xC33707D6);
    c = doGG(c, d, a, b, x[k + 3], S23, 0xF4D50D87);
    b = doGG(b, c, d, a, x[k + 8], S24, 0x455A14ED);
    a = doGG(a, b, c, d, x[k + 13], S21, 0xA9E3E905);
    d = doGG(d, a, b, c, x[k + 2], S22, 0xFCEFA3F8);
    c = doGG(c, d, a, b, x[k + 7], S23, 0x676F02D9);
    b = doGG(b, c, d, a, x[k + 12], S24, 0x8D2A4C8A);
    a = doHH(a, b, c, d, x[k + 5], S31, 0xFFFA3942);
    d = doHH(d, a, b, c, x[k + 8], S32, 0x8771F681);
    c = doHH(c, d, a, b, x[k + 11], S33, 0x6D9D6122);
    b = doHH(b, c, d, a, x[k + 14], S34, 0xFDE5380C);
    a = doHH(a, b, c, d, x[k + 1], S31, 0xA4BEEA44);
    d = doHH(d, a, b, c, x[k + 4], S32, 0x4BDECFA9);
    c = doHH(c, d, a, b, x[k + 7], S33, 0xF6BB4B60);
    b = doHH(b, c, d, a, x[k + 10], S34, 0xBEBFBC70);
    a = doHH(a, b, c, d, x[k + 13], S31, 0x289B7EC6);
    d = doHH(d, a, b, c, x[k + 0], S32, 0xEAA127FA);
    c = doHH(c, d, a, b, x[k + 3], S33, 0xD4EF3085);
    b = doHH(b, c, d, a, x[k + 6], S34, 0x4881D05);
    a = doHH(a, b, c, d, x[k + 9], S31, 0xD9D4D039);
    d = doHH(d, a, b, c, x[k + 12], S32, 0xE6DB99E5);
    c = doHH(c, d, a, b, x[k + 15], S33, 0x1FA27CF8);
    b = doHH(b, c, d, a, x[k + 2], S34, 0xC4AC5665);
    a = doII(a, b, c, d, x[k + 0], S41, 0xF4292244);
    d = doII(d, a, b, c, x[k + 7], S42, 0x432AFF97);
    c = doII(c, d, a, b, x[k + 14], S43, 0xAB9423A7);
    b = doII(b, c, d, a, x[k + 5], S44, 0xFC93A039);
    a = doII(a, b, c, d, x[k + 12], S41, 0x655B59C3);
    d = doII(d, a, b, c, x[k + 3], S42, 0x8F0CCC92);
    c = doII(c, d, a, b, x[k + 10], S43, 0xFFEFF47D);
    b = doII(b, c, d, a, x[k + 1], S44, 0x85845DD1);
    a = doII(a, b, c, d, x[k + 8], S41, 0x6FA87E4F);
    d = doII(d, a, b, c, x[k + 15], S42, 0xFE2CE6E0);
    c = doII(c, d, a, b, x[k + 6], S43, 0xA3014314);
    b = doII(b, c, d, a, x[k + 13], S44, 0x4E0811A1);
    a = doII(a, b, c, d, x[k + 4], S41, 0xF7537E82);
    d = doII(d, a, b, c, x[k + 11], S42, 0xBD3AF235);
    c = doII(c, d, a, b, x[k + 2], S43, 0x2AD7D2BB);
    b = doII(b, c, d, a, x[k + 9], S44, 0xEB86D391);
    a = addUnsigned(a, AA);
    b = addUnsigned(b, BB);
    c = addUnsigned(c, CC);
    d = addUnsigned(d, DD);
  }

  var temp = wordToHex(a) + wordToHex(b) + wordToHex(c) + wordToHex(d);
  return temp.toLowerCase();
};

exports.closeMediaStream = function (stream) {
  if (!stream) {
    return;
  } // Latest spec states that MediaStream has no stop() method and instead must
  // call stop() on every MediaStreamTrack.


  try {
    var tracks;

    if (stream.getTracks) {
      tracks = stream.getTracks();
      var _iteratorNormalCompletion = true;
      var _didIteratorError = false;
      var _iteratorError = undefined;

      try {
        for (var _iterator = tracks[Symbol.iterator](), _step; !(_iteratorNormalCompletion = (_step = _iterator.next()).done); _iteratorNormalCompletion = true) {
          var track = _step.value;
          track.stop();
        }
      } catch (err) {
        _didIteratorError = true;
        _iteratorError = err;
      } finally {
        try {
          if (!_iteratorNormalCompletion && _iterator.return != null) {
            _iterator.return();
          }
        } finally {
          if (_didIteratorError) {
            throw _iteratorError;
          }
        }
      }
    } else {
      tracks = stream.getAudioTracks();
      var _iteratorNormalCompletion2 = true;
      var _didIteratorError2 = false;
      var _iteratorError2 = undefined;

      try {
        for (var _iterator2 = tracks[Symbol.iterator](), _step2; !(_iteratorNormalCompletion2 = (_step2 = _iterator2.next()).done); _iteratorNormalCompletion2 = true) {
          var _track = _step2.value;

          _track.stop();
        }
      } catch (err) {
        _didIteratorError2 = true;
        _iteratorError2 = err;
      } finally {
        try {
          if (!_iteratorNormalCompletion2 && _iterator2.return != null) {
            _iterator2.return();
          }
        } finally {
          if (_didIteratorError2) {
            throw _iteratorError2;
          }
        }
      }

      tracks = stream.getVideoTracks();
      var _iteratorNormalCompletion3 = true;
      var _didIteratorError3 = false;
      var _iteratorError3 = undefined;

      try {
        for (var _iterator3 = tracks[Symbol.iterator](), _step3; !(_iteratorNormalCompletion3 = (_step3 = _iterator3.next()).done); _iteratorNormalCompletion3 = true) {
          var _track2 = _step3.value;

          _track2.stop();
        }
      } catch (err) {
        _didIteratorError3 = true;
        _iteratorError3 = err;
      } finally {
        try {
          if (!_iteratorNormalCompletion3 && _iterator3.return != null) {
            _iterator3.return();
          }
        } finally {
          if (_didIteratorError3) {
            throw _iteratorError3;
          }
        }
      }
    }
  } catch (error) {
    // Deprecated by the spec, but still in use.
    // NOTE: In Temasys IE plugin stream.stop is a callable 'object'.
    if (typeof stream.stop === 'function' || _typeof(stream.stop) === 'object') {
      stream.stop();
    }
  }
};

exports.cloneArray = function (array) {
  return array && array.slice() || [];
};

}),
/* 3 */
(function(module, exports, __webpack_require__) {

"use strict";


module.exports = function () {
  /*
   * Generated by PEG.js 0.7.0.
   *
   * http://pegjs.majda.cz/
   */
  function quote(s) {
    /*
     * ECMA-262, 5th ed., 7.8.4: All characters may appear literally in a
     * string literal except for the closing quote character, backslash,
     * carriage return, line separator, paragraph separator, and line feed.
     * Any character may appear in the form of an escape sequence.
     *
     * For portability, we also escape escape all control and non-ASCII
     * characters. Note that "\0" and "\v" escape sequences are not used
     * because JSHint does not like the first and IE the second.
     */
    return '"' + s.replace(/\\/g, '\\\\') // backslash
    .replace(/"/g, '\\"') // closing quote character
    .replace(/\x08/g, '\\b') // backspace
    .replace(/\t/g, '\\t') // horizontal tab
    .replace(/\n/g, '\\n') // line feed
    .replace(/\f/g, '\\f') // form feed
    .replace(/\r/g, '\\r') // carriage return
    .replace(/[\x00-\x07\x0B\x0E-\x1F\x80-\uFFFF]/g, escape) + '"';
  }

  var result = {
    /*
     * Parses the input with a generated parser. If the parsing is successfull,
     * returns a value explicitly or implicitly specified by the grammar from
     * which the parser was generated (see |PEG.buildParser|). If the parsing is
     * unsuccessful, throws |PEG.parser.SyntaxError| describing the error.
     */
    parse: function parse(input, startRule) {
      var parseFunctions = {
        "CRLF": parse_CRLF,
        "DIGIT": parse_DIGIT,
        "ALPHA": parse_ALPHA,
        "HEXDIG": parse_HEXDIG,
        "WSP": parse_WSP,
        "OCTET": parse_OCTET,
        "DQUOTE": parse_DQUOTE,
        "SP": parse_SP,
        "HTAB": parse_HTAB,
        "alphanum": parse_alphanum,
        "reserved": parse_reserved,
        "unreserved": parse_unreserved,
        "mark": parse_mark,
        "escaped": parse_escaped,
        "LWS": parse_LWS,
        "SWS": parse_SWS,
        "HCOLON": parse_HCOLON,
        "TEXT_UTF8_TRIM": parse_TEXT_UTF8_TRIM,
        "TEXT_UTF8char": parse_TEXT_UTF8char,
        "UTF8_NONASCII": parse_UTF8_NONASCII,
        "UTF8_CONT": parse_UTF8_CONT,
        "LHEX": parse_LHEX,
        "token": parse_token,
        "token_nodot": parse_token_nodot,
        "separators": parse_separators,
        "word": parse_word,
        "STAR": parse_STAR,
        "SLASH": parse_SLASH,
        "EQUAL": parse_EQUAL,
        "LPAREN": parse_LPAREN,
        "RPAREN": parse_RPAREN,
        "RAQUOT": parse_RAQUOT,
        "LAQUOT": parse_LAQUOT,
        "COMMA": parse_COMMA,
        "SEMI": parse_SEMI,
        "COLON": parse_COLON,
        "LDQUOT": parse_LDQUOT,
        "RDQUOT": parse_RDQUOT,
        "comment": parse_comment,
        "ctext": parse_ctext,
        "quoted_string": parse_quoted_string,
        "quoted_string_clean": parse_quoted_string_clean,
        "qdtext": parse_qdtext,
        "quoted_pair": parse_quoted_pair,
        "SIP_URI_noparams": parse_SIP_URI_noparams,
        "SIP_URI": parse_SIP_URI,
        "uri_scheme": parse_uri_scheme,
        "uri_scheme_sips": parse_uri_scheme_sips,
        "uri_scheme_sip": parse_uri_scheme_sip,
        "userinfo": parse_userinfo,
        "user": parse_user,
        "user_unreserved": parse_user_unreserved,
        "password": parse_password,
        "hostport": parse_hostport,
        "host": parse_host,
        "hostname": parse_hostname,
        "domainlabel": parse_domainlabel,
        "toplabel": parse_toplabel,
        "IPv6reference": parse_IPv6reference,
        "IPv6address": parse_IPv6address,
        "h16": parse_h16,
        "ls32": parse_ls32,
        "IPv4address": parse_IPv4address,
        "dec_octet": parse_dec_octet,
        "port": parse_port,
        "uri_parameters": parse_uri_parameters,
        "uri_parameter": parse_uri_parameter,
        "transport_param": parse_transport_param,
        "user_param": parse_user_param,
        "method_param": parse_method_param,
        "ttl_param": parse_ttl_param,
        "maddr_param": parse_maddr_param,
        "lr_param": parse_lr_param,
        "other_param": parse_other_param,
        "pname": parse_pname,
        "pvalue": parse_pvalue,
        "paramchar": parse_paramchar,
        "param_unreserved": parse_param_unreserved,
        "headers": parse_headers,
        "header": parse_header,
        "hname": parse_hname,
        "hvalue": parse_hvalue,
        "hnv_unreserved": parse_hnv_unreserved,
        "Request_Response": parse_Request_Response,
        "Request_Line": parse_Request_Line,
        "Request_URI": parse_Request_URI,
        "absoluteURI": parse_absoluteURI,
        "hier_part": parse_hier_part,
        "net_path": parse_net_path,
        "abs_path": parse_abs_path,
        "opaque_part": parse_opaque_part,
        "uric": parse_uric,
        "uric_no_slash": parse_uric_no_slash,
        "path_segments": parse_path_segments,
        "segment": parse_segment,
        "param": parse_param,
        "pchar": parse_pchar,
        "scheme": parse_scheme,
        "authority": parse_authority,
        "srvr": parse_srvr,
        "reg_name": parse_reg_name,
        "query": parse_query,
        "SIP_Version": parse_SIP_Version,
        "INVITEm": parse_INVITEm,
        "ACKm": parse_ACKm,
        "OPTIONSm": parse_OPTIONSm,
        "BYEm": parse_BYEm,
        "CANCELm": parse_CANCELm,
        "REGISTERm": parse_REGISTERm,
        "SUBSCRIBEm": parse_SUBSCRIBEm,
        "NOTIFYm": parse_NOTIFYm,
        "REFERm": parse_REFERm,
        "Method": parse_Method,
        "Status_Line": parse_Status_Line,
        "Status_Code": parse_Status_Code,
        "extension_code": parse_extension_code,
        "Reason_Phrase": parse_Reason_Phrase,
        "Allow_Events": parse_Allow_Events,
        "Call_ID": parse_Call_ID,
        "Contact": parse_Contact,
        "contact_param": parse_contact_param,
        "name_addr": parse_name_addr,
        "display_name": parse_display_name,
        "contact_params": parse_contact_params,
        "c_p_q": parse_c_p_q,
        "c_p_expires": parse_c_p_expires,
        "delta_seconds": parse_delta_seconds,
        "qvalue": parse_qvalue,
        "generic_param": parse_generic_param,
        "gen_value": parse_gen_value,
        "Content_Disposition": parse_Content_Disposition,
        "disp_type": parse_disp_type,
        "disp_param": parse_disp_param,
        "handling_param": parse_handling_param,
        "Content_Encoding": parse_Content_Encoding,
        "Content_Length": parse_Content_Length,
        "Content_Type": parse_Content_Type,
        "media_type": parse_media_type,
        "m_type": parse_m_type,
        "discrete_type": parse_discrete_type,
        "composite_type": parse_composite_type,
        "extension_token": parse_extension_token,
        "x_token": parse_x_token,
        "m_subtype": parse_m_subtype,
        "m_parameter": parse_m_parameter,
        "m_value": parse_m_value,
        "CSeq": parse_CSeq,
        "CSeq_value": parse_CSeq_value,
        "Expires": parse_Expires,
        "Event": parse_Event,
        "event_type": parse_event_type,
        "From": parse_From,
        "from_param": parse_from_param,
        "tag_param": parse_tag_param,
        "Max_Forwards": parse_Max_Forwards,
        "Min_Expires": parse_Min_Expires,
        "Name_Addr_Header": parse_Name_Addr_Header,
        "Proxy_Authenticate": parse_Proxy_Authenticate,
        "challenge": parse_challenge,
        "other_challenge": parse_other_challenge,
        "auth_param": parse_auth_param,
        "digest_cln": parse_digest_cln,
        "realm": parse_realm,
        "realm_value": parse_realm_value,
        "domain": parse_domain,
        "URI": parse_URI,
        "nonce": parse_nonce,
        "nonce_value": parse_nonce_value,
        "opaque": parse_opaque,
        "stale": parse_stale,
        "algorithm": parse_algorithm,
        "qop_options": parse_qop_options,
        "qop_value": parse_qop_value,
        "Proxy_Require": parse_Proxy_Require,
        "Record_Route": parse_Record_Route,
        "rec_route": parse_rec_route,
        "Reason": parse_Reason,
        "reason_param": parse_reason_param,
        "reason_cause": parse_reason_cause,
        "Require": parse_Require,
        "Route": parse_Route,
        "route_param": parse_route_param,
        "Subscription_State": parse_Subscription_State,
        "substate_value": parse_substate_value,
        "subexp_params": parse_subexp_params,
        "event_reason_value": parse_event_reason_value,
        "Subject": parse_Subject,
        "Supported": parse_Supported,
        "To": parse_To,
        "to_param": parse_to_param,
        "Via": parse_Via,
        "via_param": parse_via_param,
        "via_params": parse_via_params,
        "via_ttl": parse_via_ttl,
        "via_maddr": parse_via_maddr,
        "via_received": parse_via_received,
        "via_branch": parse_via_branch,
        "response_port": parse_response_port,
        "sent_protocol": parse_sent_protocol,
        "protocol_name": parse_protocol_name,
        "transport": parse_transport,
        "sent_by": parse_sent_by,
        "via_host": parse_via_host,
        "via_port": parse_via_port,
        "ttl": parse_ttl,
        "WWW_Authenticate": parse_WWW_Authenticate,
        "Session_Expires": parse_Session_Expires,
        "s_e_expires": parse_s_e_expires,
        "s_e_params": parse_s_e_params,
        "s_e_refresher": parse_s_e_refresher,
        "extension_header": parse_extension_header,
        "header_value": parse_header_value,
        "message_body": parse_message_body,
        "uuid_URI": parse_uuid_URI,
        "uuid": parse_uuid,
        "hex4": parse_hex4,
        "hex8": parse_hex8,
        "hex12": parse_hex12,
        "Refer_To": parse_Refer_To,
        "Replaces": parse_Replaces,
        "call_id": parse_call_id,
        "replaces_param": parse_replaces_param,
        "to_tag": parse_to_tag,
        "from_tag": parse_from_tag,
        "early_flag": parse_early_flag
      };

      if (startRule !== undefined) {
        if (parseFunctions[startRule] === undefined) {
          throw new Error("Invalid rule name: " + quote(startRule) + ".");
        }
      } else {
        startRule = "CRLF";
      }

      var pos = 0;
      var reportFailures = 0;
      var rightmostFailuresPos = 0;
      var rightmostFailuresExpected = [];

      function padLeft(input, padding, length) {
        var result = input;
        var padLength = length - input.length;

        for (var i = 0; i < padLength; i++) {
          result = padding + result;
        }

        return result;
      }

      function escape(ch) {
        var charCode = ch.charCodeAt(0);
        var escapeChar;
        var length;

        if (charCode <= 0xFF) {
          escapeChar = 'x';
          length = 2;
        } else {
          escapeChar = 'u';
          length = 4;
        }

        return '\\' + escapeChar + padLeft(charCode.toString(16).toUpperCase(), '0', length);
      }

      function matchFailed(failure) {
        if (pos < rightmostFailuresPos) {
          return;
        }

        if (pos > rightmostFailuresPos) {
          rightmostFailuresPos = pos;
          rightmostFailuresExpected = [];
        }

        rightmostFailuresExpected.push(failure);
      }

      function parse_CRLF() {
        var result0;

        if (input.substr(pos, 2) === "\r\n") {
          result0 = "\r\n";
          pos += 2;
        } else {
          result0 = null;

          if (reportFailures === 0) {
            matchFailed("\"\\r\\n\"");
          }
        }

        return result0;
      }

      function parse_DIGIT() {
        var result0;

        if (/^[0-9]/.test(input.charAt(pos))) {
          result0 = input.charAt(pos);
          pos++;
        } else {
          result0 = null;

          if (reportFailures === 0) {
            matchFailed("[0-9]");
          }
        }

        return result0;
      }

      function parse_ALPHA() {
        var result0;

        if (/^[a-zA-Z]/.test(input.charAt(pos))) {
          result0 = input.charAt(pos);
          pos++;
        } else {
          result0 = null;

          if (reportFailures === 0) {
            matchFailed("[a-zA-Z]");
          }
        }

        return result0;
      }

      function parse_HEXDIG() {
        var result0;

        if (/^[0-9a-fA-F]/.test(input.charAt(pos))) {
          result0 = input.charAt(pos);
          pos++;
        } else {
          result0 = null;

          if (reportFailures === 0) {
            matchFailed("[0-9a-fA-F]");
          }
        }

        return result0;
      }

      function parse_WSP() {
        var result0;
        result0 = parse_SP();

        if (result0 === null) {
          result0 = parse_HTAB();
        }

        return result0;
      }

      function parse_OCTET() {
        var result0;

        if (/^[\0-\xFF]/.test(input.charAt(pos))) {
          result0 = input.charAt(pos);
          pos++;
        } else {
          result0 = null;

          if (reportFailures === 0) {
            matchFailed("[\\0-\\xFF]");
          }
        }

        return result0;
      }

      function parse_DQUOTE() {
        var result0;

        if (/^["]/.test(input.charAt(pos))) {
          result0 = input.charAt(pos);
          pos++;
        } else {
          result0 = null;

          if (reportFailures === 0) {
            matchFailed("[\"]");
          }
        }

        return result0;
      }

      function parse_SP() {
        var result0;

        if (input.charCodeAt(pos) === 32) {
          result0 = " ";
          pos++;
        } else {
          result0 = null;

          if (reportFailures === 0) {
            matchFailed("\" \"");
          }
        }

        return result0;
      }

      function parse_HTAB() {
        var result0;

        if (input.charCodeAt(pos) === 9) {
          result0 = "\t";
          pos++;
        } else {
          result0 = null;

          if (reportFailures === 0) {
            matchFailed("\"\\t\"");
          }
        }

        return result0;
      }

      function parse_alphanum() {
        var result0;

        if (/^[a-zA-Z0-9]/.test(input.charAt(pos))) {
          result0 = input.charAt(pos);
          pos++;
        } else {
          result0 = null;

          if (reportFailures === 0) {
            matchFailed("[a-zA-Z0-9]");
          }
        }

        return result0;
      }

      function parse_reserved() {
        var result0;

        if (input.charCodeAt(pos) === 59) {
          result0 = ";";
          pos++;
        } else {
          result0 = null;

          if (reportFailures === 0) {
            matchFailed("\";\"");
          }
        }

        if (result0 === null) {
          if (input.charCodeAt(pos) === 47) {
            result0 = "/";
            pos++;
          } else {
            result0 = null;

            if (reportFailures === 0) {
              matchFailed("\"/\"");
            }
          }

          if (result0 === null) {
            if (input.charCodeAt(pos) === 63) {
              result0 = "?";
              pos++;
            } else {
              result0 = null;

              if (reportFailures === 0) {
                matchFailed("\"?\"");
              }
            }

            if (result0 === null) {
              if (input.charCodeAt(pos) === 58) {
                result0 = ":";
                pos++;
              } else {
                result0 = null;

                if (reportFailures === 0) {
                  matchFailed("\":\"");
                }
              }

              if (result0 === null) {
                if (input.charCodeAt(pos) === 64) {
                  result0 = "@";
                  pos++;
                } else {
                  result0 = null;

                  if (reportFailures === 0) {
                    matchFailed("\"@\"");
                  }
                }

                if (result0 === null) {
                  if (input.charCodeAt(pos) === 38) {
                    result0 = "&";
                    pos++;
                  } else {
                    result0 = null;

                    if (reportFailures === 0) {
                      matchFailed("\"&\"");
                    }
                  }

                  if (result0 === null) {
                    if (input.charCodeAt(pos) === 61) {
                      result0 = "=";
                      pos++;
                    } else {
                      result0 = null;

                      if (reportFailures === 0) {
                        matchFailed("\"=\"");
                      }
                    }

                    if (result0 === null) {
                      if (input.charCodeAt(pos) === 43) {
                        result0 = "+";
                        pos++;
                      } else {
                        result0 = null;

                        if (reportFailures === 0) {
                          matchFailed("\"+\"");
                        }
                      }

                      if (result0 === null) {
                        if (input.charCodeAt(pos) === 36) {
                          result0 = "$";
                          pos++;
                        } else {
                          result0 = null;

                          if (reportFailures === 0) {
                            matchFailed("\"$\"");
                          }
                        }

                        if (result0 === null) {
                          if (input.charCodeAt(pos) === 44) {
                            result0 = ",";
                            pos++;
                          } else {
                            result0 = null;

                            if (reportFailures === 0) {
                              matchFailed("\",\"");
                            }
                          }
                        }
                      }
                    }
                  }
                }
              }
            }
          }
        }

        return result0;
      }

      function parse_unreserved() {
        var result0;
        result0 = parse_alphanum();

        if (result0 === null) {
          result0 = parse_mark();
        }

        return result0;
      }

      function parse_mark() {
        var result0;

        if (input.charCodeAt(pos) === 45) {
          result0 = "-";
          pos++;
        } else {
          result0 = null;

          if (reportFailures === 0) {
            matchFailed("\"-\"");
          }
        }

        if (result0 === null) {
          if (input.charCodeAt(pos) === 95) {
            result0 = "_";
            pos++;
          } else {
            result0 = null;

            if (reportFailures === 0) {
              matchFailed("\"_\"");
            }
          }

          if (result0 === null) {
            if (input.charCodeAt(pos) === 46) {
              result0 = ".";
              pos++;
            } else {
              result0 = null;

              if (reportFailures === 0) {
                matchFailed("\".\"");
              }
            }

            if (result0 === null) {
              if (input.charCodeAt(pos) === 33) {
                result0 = "!";
                pos++;
              } else {
                result0 = null;

                if (reportFailures === 0) {
                  matchFailed("\"!\"");
                }
              }

              if (result0 === null) {
                if (input.charCodeAt(pos) === 126) {
                  result0 = "~";
                  pos++;
                } else {
                  result0 = null;

                  if (reportFailures === 0) {
                    matchFailed("\"~\"");
                  }
                }

                if (result0 === null) {
                  if (input.charCodeAt(pos) === 42) {
                    result0 = "*";
                    pos++;
                  } else {
                    result0 = null;

                    if (reportFailures === 0) {
                      matchFailed("\"*\"");
                    }
                  }

                  if (result0 === null) {
                    if (input.charCodeAt(pos) === 39) {
                      result0 = "'";
                      pos++;
                    } else {
                      result0 = null;

                      if (reportFailures === 0) {
                        matchFailed("\"'\"");
                      }
                    }

                    if (result0 === null) {
                      if (input.charCodeAt(pos) === 40) {
                        result0 = "(";
                        pos++;
                      } else {
                        result0 = null;

                        if (reportFailures === 0) {
                          matchFailed("\"(\"");
                        }
                      }

                      if (result0 === null) {
                        if (input.charCodeAt(pos) === 41) {
                          result0 = ")";
                          pos++;
                        } else {
                          result0 = null;

                          if (reportFailures === 0) {
                            matchFailed("\")\"");
                          }
                        }
                      }
                    }
                  }
                }
              }
            }
          }
        }

        return result0;
      }

      function parse_escaped() {
        var result0, result1, result2;
        var pos0, pos1;
        pos0 = pos;
        pos1 = pos;

        if (input.charCodeAt(pos) === 37) {
          result0 = "%";
          pos++;
        } else {
          result0 = null;

          if (reportFailures === 0) {
            matchFailed("\"%\"");
          }
        }

        if (result0 !== null) {
          result1 = parse_HEXDIG();

          if (result1 !== null) {
            result2 = parse_HEXDIG();

            if (result2 !== null) {
              result0 = [result0, result1, result2];
            } else {
              result0 = null;
              pos = pos1;
            }
          } else {
            result0 = null;
            pos = pos1;
          }
        } else {
          result0 = null;
          pos = pos1;
        }

        if (result0 !== null) {
          result0 = function (offset, escaped) {
            return escaped.join('');
          }(pos0, result0);
        }

        if (result0 === null) {
          pos = pos0;
        }

        return result0;
      }

      function parse_LWS() {
        var result0, result1, result2;
        var pos0, pos1, pos2;
        pos0 = pos;
        pos1 = pos;
        pos2 = pos;
        result0 = [];
        result1 = parse_WSP();

        while (result1 !== null) {
          result0.push(result1);
          result1 = parse_WSP();
        }

        if (result0 !== null) {
          result1 = parse_CRLF();

          if (result1 !== null) {
            result0 = [result0, result1];
          } else {
            result0 = null;
            pos = pos2;
          }
        } else {
          result0 = null;
          pos = pos2;
        }

        result0 = result0 !== null ? result0 : "";

        if (result0 !== null) {
          result2 = parse_WSP();

          if (result2 !== null) {
            result1 = [];

            while (result2 !== null) {
              result1.push(result2);
              result2 = parse_WSP();
            }
          } else {
            result1 = null;
          }

          if (result1 !== null) {
            result0 = [result0, result1];
          } else {
            result0 = null;
            pos = pos1;
          }
        } else {
          result0 = null;
          pos = pos1;
        }

        if (result0 !== null) {
          result0 = function (offset) {
            return " ";
          }(pos0);
        }

        if (result0 === null) {
          pos = pos0;
        }

        return result0;
      }

      function parse_SWS() {
        var result0;
        result0 = parse_LWS();
        result0 = result0 !== null ? result0 : "";
        return result0;
      }

      function parse_HCOLON() {
        var result0, result1, result2;
        var pos0, pos1;
        pos0 = pos;
        pos1 = pos;
        result0 = [];
        result1 = parse_SP();

        if (result1 === null) {
          result1 = parse_HTAB();
        }

        while (result1 !== null) {
          result0.push(result1);
          result1 = parse_SP();

          if (result1 === null) {
            result1 = parse_HTAB();
          }
        }

        if (result0 !== null) {
          if (input.charCodeAt(pos) === 58) {
            result1 = ":";
            pos++;
          } else {
            result1 = null;

            if (reportFailures === 0) {
              matchFailed("\":\"");
            }
          }

          if (result1 !== null) {
            result2 = parse_SWS();

            if (result2 !== null) {
              result0 = [result0, result1, result2];
            } else {
              result0 = null;
              pos = pos1;
            }
          } else {
            result0 = null;
            pos = pos1;
          }
        } else {
          result0 = null;
          pos = pos1;
        }

        if (result0 !== null) {
          result0 = function (offset) {
            return ':';
          }(pos0);
        }

        if (result0 === null) {
          pos = pos0;
        }

        return result0;
      }

      function parse_TEXT_UTF8_TRIM() {
        var result0, result1, result2, result3;
        var pos0, pos1, pos2;
        pos0 = pos;
        pos1 = pos;
        result1 = parse_TEXT_UTF8char();

        if (result1 !== null) {
          result0 = [];

          while (result1 !== null) {
            result0.push(result1);
            result1 = parse_TEXT_UTF8char();
          }
        } else {
          result0 = null;
        }

        if (result0 !== null) {
          result1 = [];
          pos2 = pos;
          result2 = [];
          result3 = parse_LWS();

          while (result3 !== null) {
            result2.push(result3);
            result3 = parse_LWS();
          }

          if (result2 !== null) {
            result3 = parse_TEXT_UTF8char();

            if (result3 !== null) {
              result2 = [result2, result3];
            } else {
              result2 = null;
              pos = pos2;
            }
          } else {
            result2 = null;
            pos = pos2;
          }

          while (result2 !== null) {
            result1.push(result2);
            pos2 = pos;
            result2 = [];
            result3 = parse_LWS();

            while (result3 !== null) {
              result2.push(result3);
              result3 = parse_LWS();
            }

            if (result2 !== null) {
              result3 = parse_TEXT_UTF8char();

              if (result3 !== null) {
                result2 = [result2, result3];
              } else {
                result2 = null;
                pos = pos2;
              }
            } else {
              result2 = null;
              pos = pos2;
            }
          }

          if (result1 !== null) {
            result0 = [result0, result1];
          } else {
            result0 = null;
            pos = pos1;
          }
        } else {
          result0 = null;
          pos = pos1;
        }

        if (result0 !== null) {
          result0 = function (offset) {
            return input.substring(pos, offset);
          }(pos0);
        }

        if (result0 === null) {
          pos = pos0;
        }

        return result0;
      }

      function parse_TEXT_UTF8char() {
        var result0;

        if (/^[!-~]/.test(input.charAt(pos))) {
          result0 = input.charAt(pos);
          pos++;
        } else {
          result0 = null;

          if (reportFailures === 0) {
            matchFailed("[!-~]");
          }
        }

        if (result0 === null) {
          result0 = parse_UTF8_NONASCII();
        }

        return result0;
      }

      function parse_UTF8_NONASCII() {
        var result0;

        if (/^[\x80-\uFFFF]/.test(input.charAt(pos))) {
          result0 = input.charAt(pos);
          pos++;
        } else {
          result0 = null;

          if (reportFailures === 0) {
            matchFailed("[\\x80-\\uFFFF]");
          }
        }

        return result0;
      }

      function parse_UTF8_CONT() {
        var result0;

        if (/^[\x80-\xBF]/.test(input.charAt(pos))) {
          result0 = input.charAt(pos);
          pos++;
        } else {
          result0 = null;

          if (reportFailures === 0) {
            matchFailed("[\\x80-\\xBF]");
          }
        }

        return result0;
      }

      function parse_LHEX() {
        var result0;
        result0 = parse_DIGIT();

        if (result0 === null) {
          if (/^[a-f]/.test(input.charAt(pos))) {
            result0 = input.charAt(pos);
            pos++;
          } else {
            result0 = null;

            if (reportFailures === 0) {
              matchFailed("[a-f]");
            }
          }
        }

        return result0;
      }

      function parse_token() {
        var result0, result1;
        var pos0;
        pos0 = pos;
        result1 = parse_alphanum();

        if (result1 === null) {
          if (input.charCodeAt(pos) === 45) {
            result1 = "-";
            pos++;
          } else {
            result1 = null;

            if (reportFailures === 0) {
              matchFailed("\"-\"");
            }
          }

          if (result1 === null) {
            if (input.charCodeAt(pos) === 46) {
              result1 = ".";
              pos++;
            } else {
              result1 = null;

              if (reportFailures === 0) {
                matchFailed("\".\"");
              }
            }

            if (result1 === null) {
              if (input.charCodeAt(pos) === 33) {
                result1 = "!";
                pos++;
              } else {
                result1 = null;

                if (reportFailures === 0) {
                  matchFailed("\"!\"");
                }
              }

              if (result1 === null) {
                if (input.charCodeAt(pos) === 37) {
                  result1 = "%";
                  pos++;
                } else {
                  result1 = null;

                  if (reportFailures === 0) {
                    matchFailed("\"%\"");
                  }
                }

                if (result1 === null) {
                  if (input.charCodeAt(pos) === 42) {
                    result1 = "*";
                    pos++;
                  } else {
                    result1 = null;

                    if (reportFailures === 0) {
                      matchFailed("\"*\"");
                    }
                  }

                  if (result1 === null) {
                    if (input.charCodeAt(pos) === 95) {
                      result1 = "_";
                      pos++;
                    } else {
                      result1 = null;

                      if (reportFailures === 0) {
                        matchFailed("\"_\"");
                      }
                    }

                    if (result1 === null) {
                      if (input.charCodeAt(pos) === 43) {
                        result1 = "+";
                        pos++;
                      } else {
                        result1 = null;

                        if (reportFailures === 0) {
                          matchFailed("\"+\"");
                        }
                      }

                      if (result1 === null) {
                        if (input.charCodeAt(pos) === 96) {
                          result1 = "`";
                          pos++;
                        } else {
                          result1 = null;

                          if (reportFailures === 0) {
                            matchFailed("\"`\"");
                          }
                        }

                        if (result1 === null) {
                          if (input.charCodeAt(pos) === 39) {
                            result1 = "'";
                            pos++;
                          } else {
                            result1 = null;

                            if (reportFailures === 0) {
                              matchFailed("\"'\"");
                            }
                          }

                          if (result1 === null) {
                            if (input.charCodeAt(pos) === 126) {
                              result1 = "~";
                              pos++;
                            } else {
                              result1 = null;

                              if (reportFailures === 0) {
                                matchFailed("\"~\"");
                              }
                            }
                          }
                        }
                      }
                    }
                  }
                }
              }
            }
          }
        }

        if (result1 !== null) {
          result0 = [];

          while (result1 !== null) {
            result0.push(result1);
            result1 = parse_alphanum();

            if (result1 === null) {
              if (input.charCodeAt(pos) === 45) {
                result1 = "-";
                pos++;
              } else {
                result1 = null;

                if (reportFailures === 0) {
                  matchFailed("\"-\"");
                }
              }

              if (result1 === null) {
                if (input.charCodeAt(pos) === 46) {
                  result1 = ".";
                  pos++;
                } else {
                  result1 = null;

                  if (reportFailures === 0) {
                    matchFailed("\".\"");
                  }
                }

                if (result1 === null) {
                  if (input.charCodeAt(pos) === 33) {
                    result1 = "!";
                    pos++;
                  } else {
                    result1 = null;

                    if (reportFailures === 0) {
                      matchFailed("\"!\"");
                    }
                  }

                  if (result1 === null) {
                    if (input.charCodeAt(pos) === 37) {
                      result1 = "%";
                      pos++;
                    } else {
                      result1 = null;

                      if (reportFailures === 0) {
                        matchFailed("\"%\"");
                      }
                    }

                    if (result1 === null) {
                      if (input.charCodeAt(pos) === 42) {
                        result1 = "*";
                        pos++;
                      } else {
                        result1 = null;

                        if (reportFailures === 0) {
                          matchFailed("\"*\"");
                        }
                      }

                      if (result1 === null) {
                        if (input.charCodeAt(pos) === 95) {
                          result1 = "_";
                          pos++;
                        } else {
                          result1 = null;

                          if (reportFailures === 0) {
                            matchFailed("\"_\"");
                          }
                        }

                        if (result1 === null) {
                          if (input.charCodeAt(pos) === 43) {
                            result1 = "+";
                            pos++;
                          } else {
                            result1 = null;

                            if (reportFailures === 0) {
                              matchFailed("\"+\"");
                            }
                          }

                          if (result1 === null) {
                            if (input.charCodeAt(pos) === 96) {
                              result1 = "`";
                              pos++;
                            } else {
                              result1 = null;

                              if (reportFailures === 0) {
                                matchFailed("\"`\"");
                              }
                            }

                            if (result1 === null) {
                              if (input.charCodeAt(pos) === 39) {
                                result1 = "'";
                                pos++;
                              } else {
                                result1 = null;

                                if (reportFailures === 0) {
                                  matchFailed("\"'\"");
                                }
                              }

                              if (result1 === null) {
                                if (input.charCodeAt(pos) === 126) {
                                  result1 = "~";
                                  pos++;
                                } else {
                                  result1 = null;

                                  if (reportFailures === 0) {
                                    matchFailed("\"~\"");
                                  }
                                }
                              }
                            }
                          }
                        }
                      }
                    }
                  }
                }
              }
            }
          }
        } else {
          result0 = null;
        }

        if (result0 !== null) {
          result0 = function (offset) {
            return input.substring(pos, offset);
          }(pos0);
        }

        if (result0 === null) {
          pos = pos0;
        }

        return result0;
      }

      function parse_token_nodot() {
        var result0, result1;
        var pos0;
        pos0 = pos;
        result1 = parse_alphanum();

        if (result1 === null) {
          if (input.charCodeAt(pos) === 45) {
            result1 = "-";
            pos++;
          } else {
            result1 = null;

            if (reportFailures === 0) {
              matchFailed("\"-\"");
            }
          }

          if (result1 === null) {
            if (input.charCodeAt(pos) === 33) {
              result1 = "!";
              pos++;
            } else {
              result1 = null;

              if (reportFailures === 0) {
                matchFailed("\"!\"");
              }
            }

            if (result1 === null) {
              if (input.charCodeAt(pos) === 37) {
                result1 = "%";
                pos++;
              } else {
                result1 = null;

                if (reportFailures === 0) {
                  matchFailed("\"%\"");
                }
              }

              if (result1 === null) {
                if (input.charCodeAt(pos) === 42) {
                  result1 = "*";
                  pos++;
                } else {
                  result1 = null;

                  if (reportFailures === 0) {
                    matchFailed("\"*\"");
                  }
                }

                if (result1 === null) {
                  if (input.charCodeAt(pos) === 95) {
                    result1 = "_";
                    pos++;
                  } else {
                    result1 = null;

                    if (reportFailures === 0) {
                      matchFailed("\"_\"");
                    }
                  }

                  if (result1 === null) {
                    if (input.charCodeAt(pos) === 43) {
                      result1 = "+";
                      pos++;
                    } else {
                      result1 = null;

                      if (reportFailures === 0) {
                        matchFailed("\"+\"");
                      }
                    }

                    if (result1 === null) {
                      if (input.charCodeAt(pos) === 96) {
                        result1 = "`";
                        pos++;
                      } else {
                        result1 = null;

                        if (reportFailures === 0) {
                          matchFailed("\"`\"");
                        }
                      }

                      if (result1 === null) {
                        if (input.charCodeAt(pos) === 39) {
                          result1 = "'";
                          pos++;
                        } else {
                          result1 = null;

                          if (reportFailures === 0) {
                            matchFailed("\"'\"");
                          }
                        }

                        if (result1 === null) {
                          if (input.charCodeAt(pos) === 126) {
                            result1 = "~";
                            pos++;
                          } else {
                            result1 = null;

                            if (reportFailures === 0) {
                              matchFailed("\"~\"");
                            }
                          }
                        }
                      }
                    }
                  }
                }
              }
            }
          }
        }

        if (result1 !== null) {
          result0 = [];

          while (result1 !== null) {
            result0.push(result1);
            result1 = parse_alphanum();

            if (result1 === null) {
              if (input.charCodeAt(pos) === 45) {
                result1 = "-";
                pos++;
              } else {
                result1 = null;

                if (reportFailures === 0) {
                  matchFailed("\"-\"");
                }
              }

              if (result1 === null) {
                if (input.charCodeAt(pos) === 33) {
                  result1 = "!";
                  pos++;
                } else {
                  result1 = null;

                  if (reportFailures === 0) {
                    matchFailed("\"!\"");
                  }
                }

                if (result1 === null) {
                  if (input.charCodeAt(pos) === 37) {
                    result1 = "%";
                    pos++;
                  } else {
                    result1 = null;

                    if (reportFailures === 0) {
                      matchFailed("\"%\"");
                    }
                  }

                  if (result1 === null) {
                    if (input.charCodeAt(pos) === 42) {
                      result1 = "*";
                      pos++;
                    } else {
                      result1 = null;

                      if (reportFailures === 0) {
                        matchFailed("\"*\"");
                      }
                    }

                    if (result1 === null) {
                      if (input.charCodeAt(pos) === 95) {
                        result1 = "_";
                        pos++;
                      } else {
                        result1 = null;

                        if (reportFailures === 0) {
                          matchFailed("\"_\"");
                        }
                      }

                      if (result1 === null) {
                        if (input.charCodeAt(pos) === 43) {
                          result1 = "+";
                          pos++;
                        } else {
                          result1 = null;

                          if (reportFailures === 0) {
                            matchFailed("\"+\"");
                          }
                        }

                        if (result1 === null) {
                          if (input.charCodeAt(pos) === 96) {
                            result1 = "`";
                            pos++;
                          } else {
                            result1 = null;

                            if (reportFailures === 0) {
                              matchFailed("\"`\"");
                            }
                          }

                          if (result1 === null) {
                            if (input.charCodeAt(pos) === 39) {
                              result1 = "'";
                              pos++;
                            } else {
                              result1 = null;

                              if (reportFailures === 0) {
                                matchFailed("\"'\"");
                              }
                            }

                            if (result1 === null) {
                              if (input.charCodeAt(pos) === 126) {
                                result1 = "~";
                                pos++;
                              } else {
                                result1 = null;

                                if (reportFailures === 0) {
                                  matchFailed("\"~\"");
                                }
                              }
                            }
                          }
                        }
                      }
                    }
                  }
                }
              }
            }
          }
        } else {
          result0 = null;
        }

        if (result0 !== null) {
          result0 = function (offset) {
            return input.substring(pos, offset);
          }(pos0);
        }

        if (result0 === null) {
          pos = pos0;
        }

        return result0;
      }

      function parse_separators() {
        var result0;

        if (input.charCodeAt(pos) === 40) {
          result0 = "(";
          pos++;
        } else {
          result0 = null;

          if (reportFailures === 0) {
            matchFailed("\"(\"");
          }
        }

        if (result0 === null) {
          if (input.charCodeAt(pos) === 41) {
            result0 = ")";
            pos++;
          } else {
            result0 = null;

            if (reportFailures === 0) {
              matchFailed("\")\"");
            }
          }

          if (result0 === null) {
            if (input.charCodeAt(pos) === 60) {
              result0 = "<";
              pos++;
            } else {
              result0 = null;

              if (reportFailures === 0) {
                matchFailed("\"<\"");
              }
            }

            if (result0 === null) {
              if (input.charCodeAt(pos) === 62) {
                result0 = ">";
                pos++;
              } else {
                result0 = null;

                if (reportFailures === 0) {
                  matchFailed("\">\"");
                }
              }

              if (result0 === null) {
                if (input.charCodeAt(pos) === 64) {
                  result0 = "@";
                  pos++;
                } else {
                  result0 = null;

                  if (reportFailures === 0) {
                    matchFailed("\"@\"");
                  }
                }

                if (result0 === null) {
                  if (input.charCodeAt(pos) === 44) {
                    result0 = ",";
                    pos++;
                  } else {
                    result0 = null;

                    if (reportFailures === 0) {
                      matchFailed("\",\"");
                    }
                  }

                  if (result0 === null) {
                    if (input.charCodeAt(pos) === 59) {
                      result0 = ";";
                      pos++;
                    } else {
                      result0 = null;

                      if (reportFailures === 0) {
                        matchFailed("\";\"");
                      }
                    }

                    if (result0 === null) {
                      if (input.charCodeAt(pos) === 58) {
                        result0 = ":";
                        pos++;
                      } else {
                        result0 = null;

                        if (reportFailures === 0) {
                          matchFailed("\":\"");
                        }
                      }

                      if (result0 === null) {
                        if (input.charCodeAt(pos) === 92) {
                          result0 = "\\";
                          pos++;
                        } else {
                          result0 = null;

                          if (reportFailures === 0) {
                            matchFailed("\"\\\\\"");
                          }
                        }

                        if (result0 === null) {
                          result0 = parse_DQUOTE();

                          if (result0 === null) {
                            if (input.charCodeAt(pos) === 47) {
                              result0 = "/";
                              pos++;
                            } else {
                              result0 = null;

                              if (reportFailures === 0) {
                                matchFailed("\"/\"");
                              }
                            }

                            if (result0 === null) {
                              if (input.charCodeAt(pos) === 91) {
                                result0 = "[";
                                pos++;
                              } else {
                                result0 = null;

                                if (reportFailures === 0) {
                                  matchFailed("\"[\"");
                                }
                              }

                              if (result0 === null) {
                                if (input.charCodeAt(pos) === 93) {
                                  result0 = "]";
                                  pos++;
                                } else {
                                  result0 = null;

                                  if (reportFailures === 0) {
                                    matchFailed("\"]\"");
                                  }
                                }

                                if (result0 === null) {
                                  if (input.charCodeAt(pos) === 63) {
                                    result0 = "?";
                                    pos++;
                                  } else {
                                    result0 = null;

                                    if (reportFailures === 0) {
                                      matchFailed("\"?\"");
                                    }
                                  }

                                  if (result0 === null) {
                                    if (input.charCodeAt(pos) === 61) {
                                      result0 = "=";
                                      pos++;
                                    } else {
                                      result0 = null;

                                      if (reportFailures === 0) {
                                        matchFailed("\"=\"");
                                      }
                                    }

                                    if (result0 === null) {
                                      if (input.charCodeAt(pos) === 123) {
                                        result0 = "{";
                                        pos++;
                                      } else {
                                        result0 = null;

                                        if (reportFailures === 0) {
                                          matchFailed("\"{\"");
                                        }
                                      }

                                      if (result0 === null) {
                                        if (input.charCodeAt(pos) === 125) {
                                          result0 = "}";
                                          pos++;
                                        } else {
                                          result0 = null;

                                          if (reportFailures === 0) {
                                            matchFailed("\"}\"");
                                          }
                                        }

                                        if (result0 === null) {
                                          result0 = parse_SP();

                                          if (result0 === null) {
                                            result0 = parse_HTAB();
                                          }
                                        }
                                      }
                                    }
                                  }
                                }
                              }
                            }
                          }
                        }
                      }
                    }
                  }
                }
              }
            }
          }
        }

        return result0;
      }

      function parse_word() {
        var result0, result1;
        var pos0;
        pos0 = pos;
        result1 = parse_alphanum();

        if (result1 === null) {
          if (input.charCodeAt(pos) === 45) {
            result1 = "-";
            pos++;
          } else {
            result1 = null;

            if (reportFailures === 0) {
              matchFailed("\"-\"");
            }
          }

          if (result1 === null) {
            if (input.charCodeAt(pos) === 46) {
              result1 = ".";
              pos++;
            } else {
              result1 = null;

              if (reportFailures === 0) {
                matchFailed("\".\"");
              }
            }

            if (result1 === null) {
              if (input.charCodeAt(pos) === 33) {
                result1 = "!";
                pos++;
              } else {
                result1 = null;

                if (reportFailures === 0) {
                  matchFailed("\"!\"");
                }
              }

              if (result1 === null) {
                if (input.charCodeAt(pos) === 37) {
                  result1 = "%";
                  pos++;
                } else {
                  result1 = null;

                  if (reportFailures === 0) {
                    matchFailed("\"%\"");
                  }
                }

                if (result1 === null) {
                  if (input.charCodeAt(pos) === 42) {
                    result1 = "*";
                    pos++;
                  } else {
                    result1 = null;

                    if (reportFailures === 0) {
                      matchFailed("\"*\"");
                    }
                  }

                  if (result1 === null) {
                    if (input.charCodeAt(pos) === 95) {
                      result1 = "_";
                      pos++;
                    } else {
                      result1 = null;

                      if (reportFailures === 0) {
                        matchFailed("\"_\"");
                      }
                    }

                    if (result1 === null) {
                      if (input.charCodeAt(pos) === 43) {
                        result1 = "+";
                        pos++;
                      } else {
                        result1 = null;

                        if (reportFailures === 0) {
                          matchFailed("\"+\"");
                        }
                      }

                      if (result1 === null) {
                        if (input.charCodeAt(pos) === 96) {
                          result1 = "`";
                          pos++;
                        } else {
                          result1 = null;

                          if (reportFailures === 0) {
                            matchFailed("\"`\"");
                          }
                        }

                        if (result1 === null) {
                          if (input.charCodeAt(pos) === 39) {
                            result1 = "'";
                            pos++;
                          } else {
                            result1 = null;

                            if (reportFailures === 0) {
                              matchFailed("\"'\"");
                            }
                          }

                          if (result1 === null) {
                            if (input.charCodeAt(pos) === 126) {
                              result1 = "~";
                              pos++;
                            } else {
                              result1 = null;

                              if (reportFailures === 0) {
                                matchFailed("\"~\"");
                              }
                            }

                            if (result1 === null) {
                              if (input.charCodeAt(pos) === 40) {
                                result1 = "(";
                                pos++;
                              } else {
                                result1 = null;

                                if (reportFailures === 0) {
                                  matchFailed("\"(\"");
                                }
                              }

                              if (result1 === null) {
                                if (input.charCodeAt(pos) === 41) {
                                  result1 = ")";
                                  pos++;
                                } else {
                                  result1 = null;

                                  if (reportFailures === 0) {
                                    matchFailed("\")\"");
                                  }
                                }

                                if (result1 === null) {
                                  if (input.charCodeAt(pos) === 60) {
                                    result1 = "<";
                                    pos++;
                                  } else {
                                    result1 = null;

                                    if (reportFailures === 0) {
                                      matchFailed("\"<\"");
                                    }
                                  }

                                  if (result1 === null) {
                                    if (input.charCodeAt(pos) === 62) {
                                      result1 = ">";
                                      pos++;
                                    } else {
                                      result1 = null;

                                      if (reportFailures === 0) {
                                        matchFailed("\">\"");
                                      }
                                    }

                                    if (result1 === null) {
                                      if (input.charCodeAt(pos) === 58) {
                                        result1 = ":";
                                        pos++;
                                      } else {
                                        result1 = null;

                                        if (reportFailures === 0) {
                                          matchFailed("\":\"");
                                        }
                                      }

                                      if (result1 === null) {
                                        if (input.charCodeAt(pos) === 92) {
                                          result1 = "\\";
                                          pos++;
                                        } else {
                                          result1 = null;

                                          if (reportFailures === 0) {
                                            matchFailed("\"\\\\\"");
                                          }
                                        }

                                        if (result1 === null) {
                                          result1 = parse_DQUOTE();

                                          if (result1 === null) {
                                            if (input.charCodeAt(pos) === 47) {
                                              result1 = "/";
                                              pos++;
                                            } else {
                                              result1 = null;

                                              if (reportFailures === 0) {
                                                matchFailed("\"/\"");
                                              }
                                            }

                                            if (result1 === null) {
                                              if (input.charCodeAt(pos) === 91) {
                                                result1 = "[";
                                                pos++;
                                              } else {
                                                result1 = null;

                                                if (reportFailures === 0) {
                                                  matchFailed("\"[\"");
                                                }
                                              }

                                              if (result1 === null) {
                                                if (input.charCodeAt(pos) === 93) {
                                                  result1 = "]";
                                                  pos++;
                                                } else {
                                                  result1 = null;

                                                  if (reportFailures === 0) {
                                                    matchFailed("\"]\"");
                                                  }
                                                }

                                                if (result1 === null) {
                                                  if (input.charCodeAt(pos) === 63) {
                                                    result1 = "?";
                                                    pos++;
                                                  } else {
                                                    result1 = null;

                                                    if (reportFailures === 0) {
                                                      matchFailed("\"?\"");
                                                    }
                                                  }

                                                  if (result1 === null) {
                                                    if (input.charCodeAt(pos) === 123) {
                                                      result1 = "{";
                                                      pos++;
                                                    } else {
                                                      result1 = null;

                                                      if (reportFailures === 0) {
                                                        matchFailed("\"{\"");
                                                      }
                                                    }

                                                    if (result1 === null) {
                                                      if (input.charCodeAt(pos) === 125) {
                                                        result1 = "}";
                                                        pos++;
                                                      } else {
                                                        result1 = null;

                                                        if (reportFailures === 0) {
                                                          matchFailed("\"}\"");
                                                        }
                                                      }
                                                    }
                                                  }
                                                }
                                              }
                                            }
                                          }
                                        }
                                      }
                                    }
                                  }
                                }
                              }
                            }
                          }
                        }
                      }
                    }
                  }
                }
              }
            }
          }
        }

        if (result1 !== null) {
          result0 = [];

          while (result1 !== null) {
            result0.push(result1);
            result1 = parse_alphanum();

            if (result1 === null) {
              if (input.charCodeAt(pos) === 45) {
                result1 = "-";
                pos++;
              } else {
                result1 = null;

                if (reportFailures === 0) {
                  matchFailed("\"-\"");
                }
              }

              if (result1 === null) {
                if (input.charCodeAt(pos) === 46) {
                  result1 = ".";
                  pos++;
                } else {
                  result1 = null;

                  if (reportFailures === 0) {
                    matchFailed("\".\"");
                  }
                }

                if (result1 === null) {
                  if (input.charCodeAt(pos) === 33) {
                    result1 = "!";
                    pos++;
                  } else {
                    result1 = null;

                    if (reportFailures === 0) {
                      matchFailed("\"!\"");
                    }
                  }

                  if (result1 === null) {
                    if (input.charCodeAt(pos) === 37) {
                      result1 = "%";
                      pos++;
                    } else {
                      result1 = null;

                      if (reportFailures === 0) {
                        matchFailed("\"%\"");
                      }
                    }

                    if (result1 === null) {
                      if (input.charCodeAt(pos) === 42) {
                        result1 = "*";
                        pos++;
                      } else {
                        result1 = null;

                        if (reportFailures === 0) {
                          matchFailed("\"*\"");
                        }
                      }

                      if (result1 === null) {
                        if (input.charCodeAt(pos) === 95) {
                          result1 = "_";
                          pos++;
                        } else {
                          result1 = null;

                          if (reportFailures === 0) {
                            matchFailed("\"_\"");
                          }
                        }

                        if (result1 === null) {
                          if (input.charCodeAt(pos) === 43) {
                            result1 = "+";
                            pos++;
                          } else {
                            result1 = null;

                            if (reportFailures === 0) {
                              matchFailed("\"+\"");
                            }
                          }

                          if (result1 === null) {
                            if (input.charCodeAt(pos) === 96) {
                              result1 = "`";
                              pos++;
                            } else {
                              result1 = null;

                              if (reportFailures === 0) {
                                matchFailed("\"`\"");
                              }
                            }

                            if (result1 === null) {
                              if (input.charCodeAt(pos) === 39) {
                                result1 = "'";
                                pos++;
                              } else {
                                result1 = null;

                                if (reportFailures === 0) {
                                  matchFailed("\"'\"");
                                }
                              }

                              if (result1 === null) {
                                if (input.charCodeAt(pos) === 126) {
                                  result1 = "~";
                                  pos++;
                                } else {
                                  result1 = null;

                                  if (reportFailures === 0) {
                                    matchFailed("\"~\"");
                                  }
                                }

                                if (result1 === null) {
                                  if (input.charCodeAt(pos) === 40) {
                                    result1 = "(";
                                    pos++;
                                  } else {
                                    result1 = null;

                                    if (reportFailures === 0) {
                                      matchFailed("\"(\"");
                                    }
                                  }

                                  if (result1 === null) {
                                    if (input.charCodeAt(pos) === 41) {
                                      result1 = ")";
                                      pos++;
                                    } else {
                                      result1 = null;

                                      if (reportFailures === 0) {
                                        matchFailed("\")\"");
                                      }
                                    }

                                    if (result1 === null) {
                                      if (input.charCodeAt(pos) === 60) {
                                        result1 = "<";
                                        pos++;
                                      } else {
                                        result1 = null;

                                        if (reportFailures === 0) {
                                          matchFailed("\"<\"");
                                        }
                                      }

                                      if (result1 === null) {
                                        if (input.charCodeAt(pos) === 62) {
                                          result1 = ">";
                                          pos++;
                                        } else {
                                          result1 = null;

                                          if (reportFailures === 0) {
                                            matchFailed("\">\"");
                                          }
                                        }

                                        if (result1 === null) {
                                          if (input.charCodeAt(pos) === 58) {
                                            result1 = ":";
                                            pos++;
                                          } else {
                                            result1 = null;

                                            if (reportFailures === 0) {
                                              matchFailed("\":\"");
                                            }
                                          }

                                          if (result1 === null) {
                                            if (input.charCodeAt(pos) === 92) {
                                              result1 = "\\";
                                              pos++;
                                            } else {
                                              result1 = null;

                                              if (reportFailures === 0) {
                                                matchFailed("\"\\\\\"");
                                              }
                                            }

                                            if (result1 === null) {
                                              result1 = parse_DQUOTE();

                                              if (result1 === null) {
                                                if (input.charCodeAt(pos) === 47) {
                                                  result1 = "/";
                                                  pos++;
                                                } else {
                                                  result1 = null;

                                                  if (reportFailures === 0) {
                                                    matchFailed("\"/\"");
                                                  }
                                                }

                                                if (result1 === null) {
                                                  if (input.charCodeAt(pos) === 91) {
                                                    result1 = "[";
                                                    pos++;
                                                  } else {
                                                    result1 = null;

                                                    if (reportFailures === 0) {
                                                      matchFailed("\"[\"");
                                                    }
                                                  }

                                                  if (result1 === null) {
                                                    if (input.charCodeAt(pos) === 93) {
                                                      result1 = "]";
                                                      pos++;
                                                    } else {
                                                      result1 = null;

                                                      if (reportFailures === 0) {
                                                        matchFailed("\"]\"");
                                                      }
                                                    }

                                                    if (result1 === null) {
                                                      if (input.charCodeAt(pos) === 63) {
                                                        result1 = "?";
                                                        pos++;
                                                      } else {
                                                        result1 = null;

                                                        if (reportFailures === 0) {
                                                          matchFailed("\"?\"");
                                                        }
                                                      }

                                                      if (result1 === null) {
                                                        if (input.charCodeAt(pos) === 123) {
                                                          result1 = "{";
                                                          pos++;
                                                        } else {
                                                          result1 = null;

                                                          if (reportFailures === 0) {
                                                            matchFailed("\"{\"");
                                                          }
                                                        }

                                                        if (result1 === null) {
                                                          if (input.charCodeAt(pos) === 125) {
                                                            result1 = "}";
                                                            pos++;
                                                          } else {
                                                            result1 = null;

                                                            if (reportFailures === 0) {
                                                              matchFailed("\"}\"");
                                                            }
                                                          }
                                                        }
                                                      }
                                                    }
                                                  }
                                                }
                                              }
                                            }
                                          }
                                        }
                                      }
                                    }
                                  }
                                }
                              }
                            }
                          }
                        }
                      }
                    }
                  }
                }
              }
            }
          }
        } else {
          result0 = null;
        }

        if (result0 !== null) {
          result0 = function (offset) {
            return input.substring(pos, offset);
          }(pos0);
        }

        if (result0 === null) {
          pos = pos0;
        }

        return result0;
      }

      function parse_STAR() {
        var result0, result1, result2;
        var pos0, pos1;
        pos0 = pos;
        pos1 = pos;
        result0 = parse_SWS();

        if (result0 !== null) {
          if (input.charCodeAt(pos) === 42) {
            result1 = "*";
            pos++;
          } else {
            result1 = null;

            if (reportFailures === 0) {
              matchFailed("\"*\"");
            }
          }

          if (result1 !== null) {
            result2 = parse_SWS();

            if (result2 !== null) {
              result0 = [result0, result1, result2];
            } else {
              result0 = null;
              pos = pos1;
            }
          } else {
            result0 = null;
            pos = pos1;
          }
        } else {
          result0 = null;
          pos = pos1;
        }

        if (result0 !== null) {
          result0 = function (offset) {
            return "*";
          }(pos0);
        }

        if (result0 === null) {
          pos = pos0;
        }

        return result0;
      }

      function parse_SLASH() {
        var result0, result1, result2;
        var pos0, pos1;
        pos0 = pos;
        pos1 = pos;
        result0 = parse_SWS();

        if (result0 !== null) {
          if (input.charCodeAt(pos) === 47) {
            result1 = "/";
            pos++;
          } else {
            result1 = null;

            if (reportFailures === 0) {
              matchFailed("\"/\"");
            }
          }

          if (result1 !== null) {
            result2 = parse_SWS();

            if (result2 !== null) {
              result0 = [result0, result1, result2];
            } else {
              result0 = null;
              pos = pos1;
            }
          } else {
            result0 = null;
            pos = pos1;
          }
        } else {
          result0 = null;
          pos = pos1;
        }

        if (result0 !== null) {
          result0 = function (offset) {
            return "/";
          }(pos0);
        }

        if (result0 === null) {
          pos = pos0;
        }

        return result0;
      }

      function parse_EQUAL() {
        var result0, result1, result2;
        var pos0, pos1;
        pos0 = pos;
        pos1 = pos;
        result0 = parse_SWS();

        if (result0 !== null) {
          if (input.charCodeAt(pos) === 61) {
            result1 = "=";
            pos++;
          } else {
            result1 = null;

            if (reportFailures === 0) {
              matchFailed("\"=\"");
            }
          }

          if (result1 !== null) {
            result2 = parse_SWS();

            if (result2 !== null) {
              result0 = [result0, result1, result2];
            } else {
              result0 = null;
              pos = pos1;
            }
          } else {
            result0 = null;
            pos = pos1;
          }
        } else {
          result0 = null;
          pos = pos1;
        }

        if (result0 !== null) {
          result0 = function (offset) {
            return "=";
          }(pos0);
        }

        if (result0 === null) {
          pos = pos0;
        }

        return result0;
      }

      function parse_LPAREN() {
        var result0, result1, result2;
        var pos0, pos1;
        pos0 = pos;
        pos1 = pos;
        result0 = parse_SWS();

        if (result0 !== null) {
          if (input.charCodeAt(pos) === 40) {
            result1 = "(";
            pos++;
          } else {
            result1 = null;

            if (reportFailures === 0) {
              matchFailed("\"(\"");
            }
          }

          if (result1 !== null) {
            result2 = parse_SWS();

            if (result2 !== null) {
              result0 = [result0, result1, result2];
            } else {
              result0 = null;
              pos = pos1;
            }
          } else {
            result0 = null;
            pos = pos1;
          }
        } else {
          result0 = null;
          pos = pos1;
        }

        if (result0 !== null) {
          result0 = function (offset) {
            return "(";
          }(pos0);
        }

        if (result0 === null) {
          pos = pos0;
        }

        return result0;
      }

      function parse_RPAREN() {
        var result0, result1, result2;
        var pos0, pos1;
        pos0 = pos;
        pos1 = pos;
        result0 = parse_SWS();

        if (result0 !== null) {
          if (input.charCodeAt(pos) === 41) {
            result1 = ")";
            pos++;
          } else {
            result1 = null;

            if (reportFailures === 0) {
              matchFailed("\")\"");
            }
          }

          if (result1 !== null) {
            result2 = parse_SWS();

            if (result2 !== null) {
              result0 = [result0, result1, result2];
            } else {
              result0 = null;
              pos = pos1;
            }
          } else {
            result0 = null;
            pos = pos1;
          }
        } else {
          result0 = null;
          pos = pos1;
        }

        if (result0 !== null) {
          result0 = function (offset) {
            return ")";
          }(pos0);
        }

        if (result0 === null) {
          pos = pos0;
        }

        return result0;
      }

      function parse_RAQUOT() {
        var result0, result1;
        var pos0, pos1;
        pos0 = pos;
        pos1 = pos;

        if (input.charCodeAt(pos) === 62) {
          result0 = ">";
          pos++;
        } else {
          result0 = null;

          if (reportFailures === 0) {
            matchFailed("\">\"");
          }
        }

        if (result0 !== null) {
          result1 = parse_SWS();

          if (result1 !== null) {
            result0 = [result0, result1];
          } else {
            result0 = null;
            pos = pos1;
          }
        } else {
          result0 = null;
          pos = pos1;
        }

        if (result0 !== null) {
          result0 = function (offset) {
            return ">";
          }(pos0);
        }

        if (result0 === null) {
          pos = pos0;
        }

        return result0;
      }

      function parse_LAQUOT() {
        var result0, result1;
        var pos0, pos1;
        pos0 = pos;
        pos1 = pos;
        result0 = parse_SWS();

        if (result0 !== null) {
          if (input.charCodeAt(pos) === 60) {
            result1 = "<";
            pos++;
          } else {
            result1 = null;

            if (reportFailures === 0) {
              matchFailed("\"<\"");
            }
          }

          if (result1 !== null) {
            result0 = [result0, result1];
          } else {
            result0 = null;
            pos = pos1;
          }
        } else {
          result0 = null;
          pos = pos1;
        }

        if (result0 !== null) {
          result0 = function (offset) {
            return "<";
          }(pos0);
        }

        if (result0 === null) {
          pos = pos0;
        }

        return result0;
      }

      function parse_COMMA() {
        var result0, result1, result2;
        var pos0, pos1;
        pos0 = pos;
        pos1 = pos;
        result0 = parse_SWS();

        if (result0 !== null) {
          if (input.charCodeAt(pos) === 44) {
            result1 = ",";
            pos++;
          } else {
            result1 = null;

            if (reportFailures === 0) {
              matchFailed("\",\"");
            }
          }

          if (result1 !== null) {
            result2 = parse_SWS();

            if (result2 !== null) {
              result0 = [result0, result1, result2];
            } else {
              result0 = null;
              pos = pos1;
            }
          } else {
            result0 = null;
            pos = pos1;
          }
        } else {
          result0 = null;
          pos = pos1;
        }

        if (result0 !== null) {
          result0 = function (offset) {
            return ",";
          }(pos0);
        }

        if (result0 === null) {
          pos = pos0;
        }

        return result0;
      }

      function parse_SEMI() {
        var result0, result1, result2;
        var pos0, pos1;
        pos0 = pos;
        pos1 = pos;
        result0 = parse_SWS();

        if (result0 !== null) {
          if (input.charCodeAt(pos) === 59) {
            result1 = ";";
            pos++;
          } else {
            result1 = null;

            if (reportFailures === 0) {
              matchFailed("\";\"");
            }
          }

          if (result1 !== null) {
            result2 = parse_SWS();

            if (result2 !== null) {
              result0 = [result0, result1, result2];
            } else {
              result0 = null;
              pos = pos1;
            }
          } else {
            result0 = null;
            pos = pos1;
          }
        } else {
          result0 = null;
          pos = pos1;
        }

        if (result0 !== null) {
          result0 = function (offset) {
            return ";";
          }(pos0);
        }

        if (result0 === null) {
          pos = pos0;
        }

        return result0;
      }

      function parse_COLON() {
        var result0, result1, result2;
        var pos0, pos1;
        pos0 = pos;
        pos1 = pos;
        result0 = parse_SWS();

        if (result0 !== null) {
          if (input.charCodeAt(pos) === 58) {
            result1 = ":";
            pos++;
          } else {
            result1 = null;

            if (reportFailures === 0) {
              matchFailed("\":\"");
            }
          }

          if (result1 !== null) {
            result2 = parse_SWS();

            if (result2 !== null) {
              result0 = [result0, result1, result2];
            } else {
              result0 = null;
              pos = pos1;
            }
          } else {
            result0 = null;
            pos = pos1;
          }
        } else {
          result0 = null;
          pos = pos1;
        }

        if (result0 !== null) {
          result0 = function (offset) {
            return ":";
          }(pos0);
        }

        if (result0 === null) {
          pos = pos0;
        }

        return result0;
      }

      function parse_LDQUOT() {
        var result0, result1;
        var pos0, pos1;
        pos0 = pos;
        pos1 = pos;
        result0 = parse_SWS();

        if (result0 !== null) {
          result1 = parse_DQUOTE();

          if (result1 !== null) {
            result0 = [result0, result1];
          } else {
            result0 = null;
            pos = pos1;
          }
        } else {
          result0 = null;
          pos = pos1;
        }

        if (result0 !== null) {
          result0 = function (offset) {
            return "\"";
          }(pos0);
        }

        if (result0 === null) {
          pos = pos0;
        }

        return result0;
      }

      function parse_RDQUOT() {
        var result0, result1;
        var pos0, pos1;
        pos0 = pos;
        pos1 = pos;
        result0 = parse_DQUOTE();

        if (result0 !== null) {
          result1 = parse_SWS();

          if (result1 !== null) {
            result0 = [result0, result1];
          } else {
            result0 = null;
            pos = pos1;
          }
        } else {
          result0 = null;
          pos = pos1;
        }

        if (result0 !== null) {
          result0 = function (offset) {
            return "\"";
          }(pos0);
        }

        if (result0 === null) {
          pos = pos0;
        }

        return result0;
      }

      function parse_comment() {
        var result0, result1, result2;
        var pos0;
        pos0 = pos;
        result0 = parse_LPAREN();

        if (result0 !== null) {
          result1 = [];
          result2 = parse_ctext();

          if (result2 === null) {
            result2 = parse_quoted_pair();

            if (result2 === null) {
              result2 = parse_comment();
            }
          }

          while (result2 !== null) {
            result1.push(result2);
            result2 = parse_ctext();

            if (result2 === null) {
              result2 = parse_quoted_pair();

              if (result2 === null) {
                result2 = parse_comment();
              }
            }
          }

          if (result1 !== null) {
            result2 = parse_RPAREN();

            if (result2 !== null) {
              result0 = [result0, result1, result2];
            } else {
              result0 = null;
              pos = pos0;
            }
          } else {
            result0 = null;
            pos = pos0;
          }
        } else {
          result0 = null;
          pos = pos0;
        }

        return result0;
      }

      function parse_ctext() {
        var result0;

        if (/^[!-']/.test(input.charAt(pos))) {
          result0 = input.charAt(pos);
          pos++;
        } else {
          result0 = null;

          if (reportFailures === 0) {
            matchFailed("[!-']");
          }
        }

        if (result0 === null) {
          if (/^[*-[]/.test(input.charAt(pos))) {
            result0 = input.charAt(pos);
            pos++;
          } else {
            result0 = null;

            if (reportFailures === 0) {
              matchFailed("[*-[]");
            }
          }

          if (result0 === null) {
            if (/^[\]-~]/.test(input.charAt(pos))) {
              result0 = input.charAt(pos);
              pos++;
            } else {
              result0 = null;

              if (reportFailures === 0) {
                matchFailed("[\\]-~]");
              }
            }

            if (result0 === null) {
              result0 = parse_UTF8_NONASCII();

              if (result0 === null) {
                result0 = parse_LWS();
              }
            }
          }
        }

        return result0;
      }

      function parse_quoted_string() {
        var result0, result1, result2, result3;
        var pos0, pos1;
        pos0 = pos;
        pos1 = pos;
        result0 = parse_SWS();

        if (result0 !== null) {
          result1 = parse_DQUOTE();

          if (result1 !== null) {
            result2 = [];
            result3 = parse_qdtext();

            if (result3 === null) {
              result3 = parse_quoted_pair();
            }

            while (result3 !== null) {
              result2.push(result3);
              result3 = parse_qdtext();

              if (result3 === null) {
                result3 = parse_quoted_pair();
              }
            }

            if (result2 !== null) {
              result3 = parse_DQUOTE();

              if (result3 !== null) {
                result0 = [result0, result1, result2, result3];
              } else {
                result0 = null;
                pos = pos1;
              }
            } else {
              result0 = null;
              pos = pos1;
            }
          } else {
            result0 = null;
            pos = pos1;
          }
        } else {
          result0 = null;
          pos = pos1;
        }

        if (result0 !== null) {
          result0 = function (offset) {
            return input.substring(pos, offset);
          }(pos0);
        }

        if (result0 === null) {
          pos = pos0;
        }

        return result0;
      }

      function parse_quoted_string_clean() {
        var result0, result1, result2, result3;
        var pos0, pos1;
        pos0 = pos;
        pos1 = pos;
        result0 = parse_SWS();

        if (result0 !== null) {
          result1 = parse_DQUOTE();

          if (result1 !== null) {
            result2 = [];
            result3 = parse_qdtext();

            if (result3 === null) {
              result3 = parse_quoted_pair();
            }

            while (result3 !== null) {
              result2.push(result3);
              result3 = parse_qdtext();

              if (result3 === null) {
                result3 = parse_quoted_pair();
              }
            }

            if (result2 !== null) {
              result3 = parse_DQUOTE();

              if (result3 !== null) {
                result0 = [result0, result1, result2, result3];
              } else {
                result0 = null;
                pos = pos1;
              }
            } else {
              result0 = null;
              pos = pos1;
            }
          } else {
            result0 = null;
            pos = pos1;
          }
        } else {
          result0 = null;
          pos = pos1;
        }

        if (result0 !== null) {
          result0 = function (offset) {
            return input.substring(pos - 1, offset + 1);
          }(pos0);
        }

        if (result0 === null) {
          pos = pos0;
        }

        return result0;
      }

      function parse_qdtext() {
        var result0;
        result0 = parse_LWS();

        if (result0 === null) {
          if (input.charCodeAt(pos) === 33) {
            result0 = "!";
            pos++;
          } else {
            result0 = null;

            if (reportFailures === 0) {
              matchFailed("\"!\"");
            }
          }

          if (result0 === null) {
            if (/^[#-[]/.test(input.charAt(pos))) {
              result0 = input.charAt(pos);
              pos++;
            } else {
              result0 = null;

              if (reportFailures === 0) {
                matchFailed("[#-[]");
              }
            }

            if (result0 === null) {
              if (/^[\]-~]/.test(input.charAt(pos))) {
                result0 = input.charAt(pos);
                pos++;
              } else {
                result0 = null;

                if (reportFailures === 0) {
                  matchFailed("[\\]-~]");
                }
              }

              if (result0 === null) {
                result0 = parse_UTF8_NONASCII();
              }
            }
          }
        }

        return result0;
      }

      function parse_quoted_pair() {
        var result0, result1;
        var pos0;
        pos0 = pos;

        if (input.charCodeAt(pos) === 92) {
          result0 = "\\";
          pos++;
        } else {
          result0 = null;

          if (reportFailures === 0) {
            matchFailed("\"\\\\\"");
          }
        }

        if (result0 !== null) {
          if (/^[\0-\t]/.test(input.charAt(pos))) {
            result1 = input.charAt(pos);
            pos++;
          } else {
            result1 = null;

            if (reportFailures === 0) {
              matchFailed("[\\0-\\t]");
            }
          }

          if (result1 === null) {
            if (/^[\x0B-\f]/.test(input.charAt(pos))) {
              result1 = input.charAt(pos);
              pos++;
            } else {
              result1 = null;

              if (reportFailures === 0) {
                matchFailed("[\\x0B-\\f]");
              }
            }

            if (result1 === null) {
              if (/^[\x0E-]/.test(input.charAt(pos))) {
                result1 = input.charAt(pos);
                pos++;
              } else {
                result1 = null;

                if (reportFailures === 0) {
                  matchFailed("[\\x0E-]");
                }
              }
            }
          }

          if (result1 !== null) {
            result0 = [result0, result1];
          } else {
            result0 = null;
            pos = pos0;
          }
        } else {
          result0 = null;
          pos = pos0;
        }

        return result0;
      }

      function parse_SIP_URI_noparams() {
        var result0, result1, result2, result3;
        var pos0, pos1;
        pos0 = pos;
        pos1 = pos;
        result0 = parse_uri_scheme();

        if (result0 !== null) {
          if (input.charCodeAt(pos) === 58) {
            result1 = ":";
            pos++;
          } else {
            result1 = null;

            if (reportFailures === 0) {
              matchFailed("\":\"");
            }
          }

          if (result1 !== null) {
            result2 = parse_userinfo();
            result2 = result2 !== null ? result2 : "";

            if (result2 !== null) {
              result3 = parse_hostport();

              if (result3 !== null) {
                result0 = [result0, result1, result2, result3];
              } else {
                result0 = null;
                pos = pos1;
              }
            } else {
              result0 = null;
              pos = pos1;
            }
          } else {
            result0 = null;
            pos = pos1;
          }
        } else {
          result0 = null;
          pos = pos1;
        }

        if (result0 !== null) {
          result0 = function (offset) {
            try {
              data.uri = new URI(data.scheme, data.user, data.host, data.port);
              delete data.scheme;
              delete data.user;
              delete data.host;
              delete data.host_type;
              delete data.port;
            } catch (e) {
              data = -1;
            }
          }(pos0);
        }

        if (result0 === null) {
          pos = pos0;
        }

        return result0;
      }

      function parse_SIP_URI() {
        var result0, result1, result2, result3, result4, result5;
        var pos0, pos1;
        pos0 = pos;
        pos1 = pos;
        result0 = parse_uri_scheme();

        if (result0 !== null) {
          if (input.charCodeAt(pos) === 58) {
            result1 = ":";
            pos++;
          } else {
            result1 = null;

            if (reportFailures === 0) {
              matchFailed("\":\"");
            }
          }

          if (result1 !== null) {
            result2 = parse_userinfo();
            result2 = result2 !== null ? result2 : "";

            if (result2 !== null) {
              result3 = parse_hostport();

              if (result3 !== null) {
                result4 = parse_uri_parameters();

                if (result4 !== null) {
                  result5 = parse_headers();
                  result5 = result5 !== null ? result5 : "";

                  if (result5 !== null) {
                    result0 = [result0, result1, result2, result3, result4, result5];
                  } else {
                    result0 = null;
                    pos = pos1;
                  }
                } else {
                  result0 = null;
                  pos = pos1;
                }
              } else {
                result0 = null;
                pos = pos1;
              }
            } else {
              result0 = null;
              pos = pos1;
            }
          } else {
            result0 = null;
            pos = pos1;
          }
        } else {
          result0 = null;
          pos = pos1;
        }

        if (result0 !== null) {
          result0 = function (offset) {
            var header;

            try {
              data.uri = new URI(data.scheme, data.user, data.host, data.port, data.uri_params, data.uri_headers);
              delete data.scheme;
              delete data.user;
              delete data.host;
              delete data.host_type;
              delete data.port;
              delete data.uri_params;

              if (startRule === 'SIP_URI') {
                data = data.uri;
              }
            } catch (e) {
              data = -1;
            }
          }(pos0);
        }

        if (result0 === null) {
          pos = pos0;
        }

        return result0;
      }

      function parse_uri_scheme() {
        var result0;
        result0 = parse_uri_scheme_sips();

        if (result0 === null) {
          result0 = parse_uri_scheme_sip();
        }

        return result0;
      }

      function parse_uri_scheme_sips() {
        var result0;
        var pos0;
        pos0 = pos;

        if (input.substr(pos, 4).toLowerCase() === "sips") {
          result0 = input.substr(pos, 4);
          pos += 4;
        } else {
          result0 = null;

          if (reportFailures === 0) {
            matchFailed("\"sips\"");
          }
        }

        if (result0 !== null) {
          result0 = function (offset, scheme) {
            data.scheme = scheme.toLowerCase();
          }(pos0, result0);
        }

        if (result0 === null) {
          pos = pos0;
        }

        return result0;
      }

      function parse_uri_scheme_sip() {
        var result0;
        var pos0;
        pos0 = pos;

        if (input.substr(pos, 3).toLowerCase() === "sip") {
          result0 = input.substr(pos, 3);
          pos += 3;
        } else {
          result0 = null;

          if (reportFailures === 0) {
            matchFailed("\"sip\"");
          }
        }

        if (result0 !== null) {
          result0 = function (offset, scheme) {
            data.scheme = scheme.toLowerCase();
          }(pos0, result0);
        }

        if (result0 === null) {
          pos = pos0;
        }

        return result0;
      }

      function parse_userinfo() {
        var result0, result1, result2;
        var pos0, pos1, pos2;
        pos0 = pos;
        pos1 = pos;
        result0 = parse_user();

        if (result0 !== null) {
          pos2 = pos;

          if (input.charCodeAt(pos) === 58) {
            result1 = ":";
            pos++;
          } else {
            result1 = null;

            if (reportFailures === 0) {
              matchFailed("\":\"");
            }
          }

          if (result1 !== null) {
            result2 = parse_password();

            if (result2 !== null) {
              result1 = [result1, result2];
            } else {
              result1 = null;
              pos = pos2;
            }
          } else {
            result1 = null;
            pos = pos2;
          }

          result1 = result1 !== null ? result1 : "";

          if (result1 !== null) {
            if (input.charCodeAt(pos) === 64) {
              result2 = "@";
              pos++;
            } else {
              result2 = null;

              if (reportFailures === 0) {
                matchFailed("\"@\"");
              }
            }

            if (result2 !== null) {
              result0 = [result0, result1, result2];
            } else {
              result0 = null;
              pos = pos1;
            }
          } else {
            result0 = null;
            pos = pos1;
          }
        } else {
          result0 = null;
          pos = pos1;
        }

        if (result0 !== null) {
          result0 = function (offset) {
            data.user = decodeURIComponent(input.substring(pos - 1, offset));
          }(pos0);
        }

        if (result0 === null) {
          pos = pos0;
        }

        return result0;
      }

      function parse_user() {
        var result0, result1;
        result1 = parse_unreserved();

        if (result1 === null) {
          result1 = parse_escaped();

          if (result1 === null) {
            result1 = parse_user_unreserved();
          }
        }

        if (result1 !== null) {
          result0 = [];

          while (result1 !== null) {
            result0.push(result1);
            result1 = parse_unreserved();

            if (result1 === null) {
              result1 = parse_escaped();

              if (result1 === null) {
                result1 = parse_user_unreserved();
              }
            }
          }
        } else {
          result0 = null;
        }

        return result0;
      }

      function parse_user_unreserved() {
        var result0;

        if (input.charCodeAt(pos) === 38) {
          result0 = "&";
          pos++;
        } else {
          result0 = null;

          if (reportFailures === 0) {
            matchFailed("\"&\"");
          }
        }

        if (result0 === null) {
          if (input.charCodeAt(pos) === 61) {
            result0 = "=";
            pos++;
          } else {
            result0 = null;

            if (reportFailures === 0) {
              matchFailed("\"=\"");
            }
          }

          if (result0 === null) {
            if (input.charCodeAt(pos) === 43) {
              result0 = "+";
              pos++;
            } else {
              result0 = null;

              if (reportFailures === 0) {
                matchFailed("\"+\"");
              }
            }

            if (result0 === null) {
              if (input.charCodeAt(pos) === 36) {
                result0 = "$";
                pos++;
              } else {
                result0 = null;

                if (reportFailures === 0) {
                  matchFailed("\"$\"");
                }
              }

              if (result0 === null) {
                if (input.charCodeAt(pos) === 44) {
                  result0 = ",";
                  pos++;
                } else {
                  result0 = null;

                  if (reportFailures === 0) {
                    matchFailed("\",\"");
                  }
                }

                if (result0 === null) {
                  if (input.charCodeAt(pos) === 59) {
                    result0 = ";";
                    pos++;
                  } else {
                    result0 = null;

                    if (reportFailures === 0) {
                      matchFailed("\";\"");
                    }
                  }

                  if (result0 === null) {
                    if (input.charCodeAt(pos) === 63) {
                      result0 = "?";
                      pos++;
                    } else {
                      result0 = null;

                      if (reportFailures === 0) {
                        matchFailed("\"?\"");
                      }
                    }

                    if (result0 === null) {
                      if (input.charCodeAt(pos) === 47) {
                        result0 = "/";
                        pos++;
                      } else {
                        result0 = null;

                        if (reportFailures === 0) {
                          matchFailed("\"/\"");
                        }
                      }
                    }
                  }
                }
              }
            }
          }
        }

        return result0;
      }

      function parse_password() {
        var result0, result1;
        var pos0;
        pos0 = pos;
        result0 = [];
        result1 = parse_unreserved();

        if (result1 === null) {
          result1 = parse_escaped();

          if (result1 === null) {
            if (input.charCodeAt(pos) === 38) {
              result1 = "&";
              pos++;
            } else {
              result1 = null;

              if (reportFailures === 0) {
                matchFailed("\"&\"");
              }
            }

            if (result1 === null) {
              if (input.charCodeAt(pos) === 61) {
                result1 = "=";
                pos++;
              } else {
                result1 = null;

                if (reportFailures === 0) {
                  matchFailed("\"=\"");
                }
              }

              if (result1 === null) {
                if (input.charCodeAt(pos) === 43) {
                  result1 = "+";
                  pos++;
                } else {
                  result1 = null;

                  if (reportFailures === 0) {
                    matchFailed("\"+\"");
                  }
                }

                if (result1 === null) {
                  if (input.charCodeAt(pos) === 36) {
                    result1 = "$";
                    pos++;
                  } else {
                    result1 = null;

                    if (reportFailures === 0) {
                      matchFailed("\"$\"");
                    }
                  }

                  if (result1 === null) {
                    if (input.charCodeAt(pos) === 44) {
                      result1 = ",";
                      pos++;
                    } else {
                      result1 = null;

                      if (reportFailures === 0) {
                        matchFailed("\",\"");
                      }
                    }
                  }
                }
              }
            }
          }
        }

        while (result1 !== null) {
          result0.push(result1);
          result1 = parse_unreserved();

          if (result1 === null) {
            result1 = parse_escaped();

            if (result1 === null) {
              if (input.charCodeAt(pos) === 38) {
                result1 = "&";
                pos++;
              } else {
                result1 = null;

                if (reportFailures === 0) {
                  matchFailed("\"&\"");
                }
              }

              if (result1 === null) {
                if (input.charCodeAt(pos) === 61) {
                  result1 = "=";
                  pos++;
                } else {
                  result1 = null;

                  if (reportFailures === 0) {
                    matchFailed("\"=\"");
                  }
                }

                if (result1 === null) {
                  if (input.charCodeAt(pos) === 43) {
                    result1 = "+";
                    pos++;
                  } else {
                    result1 = null;

                    if (reportFailures === 0) {
                      matchFailed("\"+\"");
                    }
                  }

                  if (result1 === null) {
                    if (input.charCodeAt(pos) === 36) {
                      result1 = "$";
                      pos++;
                    } else {
                      result1 = null;

                      if (reportFailures === 0) {
                        matchFailed("\"$\"");
                      }
                    }

                    if (result1 === null) {
                      if (input.charCodeAt(pos) === 44) {
                        result1 = ",";
                        pos++;
                      } else {
                        result1 = null;

                        if (reportFailures === 0) {
                          matchFailed("\",\"");
                        }
                      }
                    }
                  }
                }
              }
            }
          }
        }

        if (result0 !== null) {
          result0 = function (offset) {
            data.password = input.substring(pos, offset);
          }(pos0);
        }

        if (result0 === null) {
          pos = pos0;
        }

        return result0;
      }

      function parse_hostport() {
        var result0, result1, result2;
        var pos0, pos1;
        pos0 = pos;
        result0 = parse_host();

        if (result0 !== null) {
          pos1 = pos;

          if (input.charCodeAt(pos) === 58) {
            result1 = ":";
            pos++;
          } else {
            result1 = null;

            if (reportFailures === 0) {
              matchFailed("\":\"");
            }
          }

          if (result1 !== null) {
            result2 = parse_port();

            if (result2 !== null) {
              result1 = [result1, result2];
            } else {
              result1 = null;
              pos = pos1;
            }
          } else {
            result1 = null;
            pos = pos1;
          }

          result1 = result1 !== null ? result1 : "";

          if (result1 !== null) {
            result0 = [result0, result1];
          } else {
            result0 = null;
            pos = pos0;
          }
        } else {
          result0 = null;
          pos = pos0;
        }

        return result0;
      }

      function parse_host() {
        var result0;
        var pos0;
        pos0 = pos;
        result0 = parse_hostname();

        if (result0 === null) {
          result0 = parse_IPv4address();

          if (result0 === null) {
            result0 = parse_IPv6reference();
          }
        }

        if (result0 !== null) {
          result0 = function (offset) {
            data.host = input.substring(pos, offset).toLowerCase();
            return data.host;
          }(pos0);
        }

        if (result0 === null) {
          pos = pos0;
        }

        return result0;
      }

      function parse_hostname() {
        var result0, result1, result2;
        var pos0, pos1, pos2;
        pos0 = pos;
        pos1 = pos;
        result0 = [];
        pos2 = pos;
        result1 = parse_domainlabel();

        if (result1 !== null) {
          if (input.charCodeAt(pos) === 46) {
            result2 = ".";
            pos++;
          } else {
            result2 = null;

            if (reportFailures === 0) {
              matchFailed("\".\"");
            }
          }

          if (result2 !== null) {
            result1 = [result1, result2];
          } else {
            result1 = null;
            pos = pos2;
          }
        } else {
          result1 = null;
          pos = pos2;
        }

        while (result1 !== null) {
          result0.push(result1);
          pos2 = pos;
          result1 = parse_domainlabel();

          if (result1 !== null) {
            if (input.charCodeAt(pos) === 46) {
              result2 = ".";
              pos++;
            } else {
              result2 = null;

              if (reportFailures === 0) {
                matchFailed("\".\"");
              }
            }

            if (result2 !== null) {
              result1 = [result1, result2];
            } else {
              result1 = null;
              pos = pos2;
            }
          } else {
            result1 = null;
            pos = pos2;
          }
        }

        if (result0 !== null) {
          result1 = parse_toplabel();

          if (result1 !== null) {
            if (input.charCodeAt(pos) === 46) {
              result2 = ".";
              pos++;
            } else {
              result2 = null;

              if (reportFailures === 0) {
                matchFailed("\".\"");
              }
            }

            result2 = result2 !== null ? result2 : "";

            if (result2 !== null) {
              result0 = [result0, result1, result2];
            } else {
              result0 = null;
              pos = pos1;
            }
          } else {
            result0 = null;
            pos = pos1;
          }
        } else {
          result0 = null;
          pos = pos1;
        }

        if (result0 !== null) {
          result0 = function (offset) {
            data.host_type = 'domain';
            return input.substring(pos, offset);
          }(pos0);
        }

        if (result0 === null) {
          pos = pos0;
        }

        return result0;
      }

      function parse_domainlabel() {
        var result0, result1, result2;
        var pos0;
        pos0 = pos;
        result0 = parse_alphanum();

        if (result0 !== null) {
          result1 = [];
          result2 = parse_alphanum();

          if (result2 === null) {
            if (input.charCodeAt(pos) === 45) {
              result2 = "-";
              pos++;
            } else {
              result2 = null;

              if (reportFailures === 0) {
                matchFailed("\"-\"");
              }
            }

            if (result2 === null) {
              if (input.charCodeAt(pos) === 95) {
                result2 = "_";
                pos++;
              } else {
                result2 = null;

                if (reportFailures === 0) {
                  matchFailed("\"_\"");
                }
              }
            }
          }

          while (result2 !== null) {
            result1.push(result2);
            result2 = parse_alphanum();

            if (result2 === null) {
              if (input.charCodeAt(pos) === 45) {
                result2 = "-";
                pos++;
              } else {
                result2 = null;

                if (reportFailures === 0) {
                  matchFailed("\"-\"");
                }
              }

              if (result2 === null) {
                if (input.charCodeAt(pos) === 95) {
                  result2 = "_";
                  pos++;
                } else {
                  result2 = null;

                  if (reportFailures === 0) {
                    matchFailed("\"_\"");
                  }
                }
              }
            }
          }

          if (result1 !== null) {
            result0 = [result0, result1];
          } else {
            result0 = null;
            pos = pos0;
          }
        } else {
          result0 = null;
          pos = pos0;
        }

        return result0;
      }

      function parse_toplabel() {
        var result0, result1, result2;
        var pos0;
        pos0 = pos;
        result0 = parse_ALPHA();

        if (result0 !== null) {
          result1 = [];
          result2 = parse_alphanum();

          if (result2 === null) {
            if (input.charCodeAt(pos) === 45) {
              result2 = "-";
              pos++;
            } else {
              result2 = null;

              if (reportFailures === 0) {
                matchFailed("\"-\"");
              }
            }

            if (result2 === null) {
              if (input.charCodeAt(pos) === 95) {
                result2 = "_";
                pos++;
              } else {
                result2 = null;

                if (reportFailures === 0) {
                  matchFailed("\"_\"");
                }
              }
            }
          }

          while (result2 !== null) {
            result1.push(result2);
            result2 = parse_alphanum();

            if (result2 === null) {
              if (input.charCodeAt(pos) === 45) {
                result2 = "-";
                pos++;
              } else {
                result2 = null;

                if (reportFailures === 0) {
                  matchFailed("\"-\"");
                }
              }

              if (result2 === null) {
                if (input.charCodeAt(pos) === 95) {
                  result2 = "_";
                  pos++;
                } else {
                  result2 = null;

                  if (reportFailures === 0) {
                    matchFailed("\"_\"");
                  }
                }
              }
            }
          }

          if (result1 !== null) {
            result0 = [result0, result1];
          } else {
            result0 = null;
            pos = pos0;
          }
        } else {
          result0 = null;
          pos = pos0;
        }

        return result0;
      }

      function parse_IPv6reference() {
        var result0, result1, result2;
        var pos0, pos1;
        pos0 = pos;
        pos1 = pos;

        if (input.charCodeAt(pos) === 91) {
          result0 = "[";
          pos++;
        } else {
          result0 = null;

          if (reportFailures === 0) {
            matchFailed("\"[\"");
          }
        }

        if (result0 !== null) {
          result1 = parse_IPv6address();

          if (result1 !== null) {
            if (input.charCodeAt(pos) === 93) {
              result2 = "]";
              pos++;
            } else {
              result2 = null;

              if (reportFailures === 0) {
                matchFailed("\"]\"");
              }
            }

            if (result2 !== null) {
              result0 = [result0, result1, result2];
            } else {
              result0 = null;
              pos = pos1;
            }
          } else {
            result0 = null;
            pos = pos1;
          }
        } else {
          result0 = null;
          pos = pos1;
        }

        if (result0 !== null) {
          result0 = function (offset) {
            data.host_type = 'IPv6';
            return input.substring(pos, offset);
          }(pos0);
        }

        if (result0 === null) {
          pos = pos0;
        }

        return result0;
      }

      function parse_IPv6address() {
        var result0, result1, result2, result3, result4, result5, result6, result7, result8, result9, result10, result11, result12;
        var pos0, pos1, pos2;
        pos0 = pos;
        pos1 = pos;
        result0 = parse_h16();

        if (result0 !== null) {
          if (input.charCodeAt(pos) === 58) {
            result1 = ":";
            pos++;
          } else {
            result1 = null;

            if (reportFailures === 0) {
              matchFailed("\":\"");
            }
          }

          if (result1 !== null) {
            result2 = parse_h16();

            if (result2 !== null) {
              if (input.charCodeAt(pos) === 58) {
                result3 = ":";
                pos++;
              } else {
                result3 = null;

                if (reportFailures === 0) {
                  matchFailed("\":\"");
                }
              }

              if (result3 !== null) {
                result4 = parse_h16();

                if (result4 !== null) {
                  if (input.charCodeAt(pos) === 58) {
                    result5 = ":";
                    pos++;
                  } else {
                    result5 = null;

                    if (reportFailures === 0) {
                      matchFailed("\":\"");
                    }
                  }

                  if (result5 !== null) {
                    result6 = parse_h16();

                    if (result6 !== null) {
                      if (input.charCodeAt(pos) === 58) {
                        result7 = ":";
                        pos++;
                      } else {
                        result7 = null;

                        if (reportFailures === 0) {
                          matchFailed("\":\"");
                        }
                      }

                      if (result7 !== null) {
                        result8 = parse_h16();

                        if (result8 !== null) {
                          if (input.charCodeAt(pos) === 58) {
                            result9 = ":";
                            pos++;
                          } else {
                            result9 = null;

                            if (reportFailures === 0) {
                              matchFailed("\":\"");
                            }
                          }

                          if (result9 !== null) {
                            result10 = parse_h16();

                            if (result10 !== null) {
                              if (input.charCodeAt(pos) === 58) {
                                result11 = ":";
                                pos++;
                              } else {
                                result11 = null;

                                if (reportFailures === 0) {
                                  matchFailed("\":\"");
                                }
                              }

                              if (result11 !== null) {
                                result12 = parse_ls32();

                                if (result12 !== null) {
                                  result0 = [result0, result1, result2, result3, result4, result5, result6, result7, result8, result9, result10, result11, result12];
                                } else {
                                  result0 = null;
                                  pos = pos1;
                                }
                              } else {
                                result0 = null;
                                pos = pos1;
                              }
                            } else {
                              result0 = null;
                              pos = pos1;
                            }
                          } else {
                            result0 = null;
                            pos = pos1;
                          }
                        } else {
                          result0 = null;
                          pos = pos1;
                        }
                      } else {
                        result0 = null;
                        pos = pos1;
                      }
                    } else {
                      result0 = null;
                      pos = pos1;
                    }
                  } else {
                    result0 = null;
                    pos = pos1;
                  }
                } else {
                  result0 = null;
                  pos = pos1;
                }
              } else {
                result0 = null;
                pos = pos1;
              }
            } else {
              result0 = null;
              pos = pos1;
            }
          } else {
            result0 = null;
            pos = pos1;
          }
        } else {
          result0 = null;
          pos = pos1;
        }

        if (result0 === null) {
          pos1 = pos;

          if (input.substr(pos, 2) === "::") {
            result0 = "::";
            pos += 2;
          } else {
            result0 = null;

            if (reportFailures === 0) {
              matchFailed("\"::\"");
            }
          }

          if (result0 !== null) {
            result1 = parse_h16();

            if (result1 !== null) {
              if (input.charCodeAt(pos) === 58) {
                result2 = ":";
                pos++;
              } else {
                result2 = null;

                if (reportFailures === 0) {
                  matchFailed("\":\"");
                }
              }

              if (result2 !== null) {
                result3 = parse_h16();

                if (result3 !== null) {
                  if (input.charCodeAt(pos) === 58) {
                    result4 = ":";
                    pos++;
                  } else {
                    result4 = null;

                    if (reportFailures === 0) {
                      matchFailed("\":\"");
                    }
                  }

                  if (result4 !== null) {
                    result5 = parse_h16();

                    if (result5 !== null) {
                      if (input.charCodeAt(pos) === 58) {
                        result6 = ":";
                        pos++;
                      } else {
                        result6 = null;

                        if (reportFailures === 0) {
                          matchFailed("\":\"");
                        }
                      }

                      if (result6 !== null) {
                        result7 = parse_h16();

                        if (result7 !== null) {
                          if (input.charCodeAt(pos) === 58) {
                            result8 = ":";
                            pos++;
                          } else {
                            result8 = null;

                            if (reportFailures === 0) {
                              matchFailed("\":\"");
                            }
                          }

                          if (result8 !== null) {
                            result9 = parse_h16();

                            if (result9 !== null) {
                              if (input.charCodeAt(pos) === 58) {
                                result10 = ":";
                                pos++;
                              } else {
                                result10 = null;

                                if (reportFailures === 0) {
                                  matchFailed("\":\"");
                                }
                              }

                              if (result10 !== null) {
                                result11 = parse_ls32();

                                if (result11 !== null) {
                                  result0 = [result0, result1, result2, result3, result4, result5, result6, result7, result8, result9, result10, result11];
                                } else {
                                  result0 = null;
                                  pos = pos1;
                                }
                              } else {
                                result0 = null;
                                pos = pos1;
                              }
                            } else {
                              result0 = null;
                              pos = pos1;
                            }
                          } else {
                            result0 = null;
                            pos = pos1;
                          }
                        } else {
                          result0 = null;
                          pos = pos1;
                        }
                      } else {
                        result0 = null;
                        pos = pos1;
                      }
                    } else {
                      result0 = null;
                      pos = pos1;
                    }
                  } else {
                    result0 = null;
                    pos = pos1;
                  }
                } else {
                  result0 = null;
                  pos = pos1;
                }
              } else {
                result0 = null;
                pos = pos1;
              }
            } else {
              result0 = null;
              pos = pos1;
            }
          } else {
            result0 = null;
            pos = pos1;
          }

          if (result0 === null) {
            pos1 = pos;

            if (input.substr(pos, 2) === "::") {
              result0 = "::";
              pos += 2;
            } else {
              result0 = null;

              if (reportFailures === 0) {
                matchFailed("\"::\"");
              }
            }

            if (result0 !== null) {
              result1 = parse_h16();

              if (result1 !== null) {
                if (input.charCodeAt(pos) === 58) {
                  result2 = ":";
                  pos++;
                } else {
                  result2 = null;

                  if (reportFailures === 0) {
                    matchFailed("\":\"");
                  }
                }

                if (result2 !== null) {
                  result3 = parse_h16();

                  if (result3 !== null) {
                    if (input.charCodeAt(pos) === 58) {
                      result4 = ":";
                      pos++;
                    } else {
                      result4 = null;

                      if (reportFailures === 0) {
                        matchFailed("\":\"");
                      }
                    }

                    if (result4 !== null) {
                      result5 = parse_h16();

                      if (result5 !== null) {
                        if (input.charCodeAt(pos) === 58) {
                          result6 = ":";
                          pos++;
                        } else {
                          result6 = null;

                          if (reportFailures === 0) {
                            matchFailed("\":\"");
                          }
                        }

                        if (result6 !== null) {
                          result7 = parse_h16();

                          if (result7 !== null) {
                            if (input.charCodeAt(pos) === 58) {
                              result8 = ":";
                              pos++;
                            } else {
                              result8 = null;

                              if (reportFailures === 0) {
                                matchFailed("\":\"");
                              }
                            }

                            if (result8 !== null) {
                              result9 = parse_ls32();

                              if (result9 !== null) {
                                result0 = [result0, result1, result2, result3, result4, result5, result6, result7, result8, result9];
                              } else {
                                result0 = null;
                                pos = pos1;
                              }
                            } else {
                              result0 = null;
                              pos = pos1;
                            }
                          } else {
                            result0 = null;
                            pos = pos1;
                          }
                        } else {
                          result0 = null;
                          pos = pos1;
                        }
                      } else {
                        result0 = null;
                        pos = pos1;
                      }
                    } else {
                      result0 = null;
                      pos = pos1;
                    }
                  } else {
                    result0 = null;
                    pos = pos1;
                  }
                } else {
                  result0 = null;
                  pos = pos1;
                }
              } else {
                result0 = null;
                pos = pos1;
              }
            } else {
              result0 = null;
              pos = pos1;
            }

            if (result0 === null) {
              pos1 = pos;

              if (input.substr(pos, 2) === "::") {
                result0 = "::";
                pos += 2;
              } else {
                result0 = null;

                if (reportFailures === 0) {
                  matchFailed("\"::\"");
                }
              }

              if (result0 !== null) {
                result1 = parse_h16();

                if (result1 !== null) {
                  if (input.charCodeAt(pos) === 58) {
                    result2 = ":";
                    pos++;
                  } else {
                    result2 = null;

                    if (reportFailures === 0) {
                      matchFailed("\":\"");
                    }
                  }

                  if (result2 !== null) {
                    result3 = parse_h16();

                    if (result3 !== null) {
                      if (input.charCodeAt(pos) === 58) {
                        result4 = ":";
                        pos++;
                      } else {
                        result4 = null;

                        if (reportFailures === 0) {
                          matchFailed("\":\"");
                        }
                      }

                      if (result4 !== null) {
                        result5 = parse_h16();

                        if (result5 !== null) {
                          if (input.charCodeAt(pos) === 58) {
                            result6 = ":";
                            pos++;
                          } else {
                            result6 = null;

                            if (reportFailures === 0) {
                              matchFailed("\":\"");
                            }
                          }

                          if (result6 !== null) {
                            result7 = parse_ls32();

                            if (result7 !== null) {
                              result0 = [result0, result1, result2, result3, result4, result5, result6, result7];
                            } else {
                              result0 = null;
                              pos = pos1;
                            }
                          } else {
                            result0 = null;
                            pos = pos1;
                          }
                        } else {
                          result0 = null;
                          pos = pos1;
                        }
                      } else {
                        result0 = null;
                        pos = pos1;
                      }
                    } else {
                      result0 = null;
                      pos = pos1;
                    }
                  } else {
                    result0 = null;
                    pos = pos1;
                  }
                } else {
                  result0 = null;
                  pos = pos1;
                }
              } else {
                result0 = null;
                pos = pos1;
              }

              if (result0 === null) {
                pos1 = pos;

                if (input.substr(pos, 2) === "::") {
                  result0 = "::";
                  pos += 2;
                } else {
                  result0 = null;

                  if (reportFailures === 0) {
                    matchFailed("\"::\"");
                  }
                }

                if (result0 !== null) {
                  result1 = parse_h16();

                  if (result1 !== null) {
                    if (input.charCodeAt(pos) === 58) {
                      result2 = ":";
                      pos++;
                    } else {
                      result2 = null;

                      if (reportFailures === 0) {
                        matchFailed("\":\"");
                      }
                    }

                    if (result2 !== null) {
                      result3 = parse_h16();

                      if (result3 !== null) {
                        if (input.charCodeAt(pos) === 58) {
                          result4 = ":";
                          pos++;
                        } else {
                          result4 = null;

                          if (reportFailures === 0) {
                            matchFailed("\":\"");
                          }
                        }

                        if (result4 !== null) {
                          result5 = parse_ls32();

                          if (result5 !== null) {
                            result0 = [result0, result1, result2, result3, result4, result5];
                          } else {
                            result0 = null;
                            pos = pos1;
                          }
                        } else {
                          result0 = null;
                          pos = pos1;
                        }
                      } else {
                        result0 = null;
                        pos = pos1;
                      }
                    } else {
                      result0 = null;
                      pos = pos1;
                    }
                  } else {
                    result0 = null;
                    pos = pos1;
                  }
                } else {
                  result0 = null;
                  pos = pos1;
                }

                if (result0 === null) {
                  pos1 = pos;

                  if (input.substr(pos, 2) === "::") {
                    result0 = "::";
                    pos += 2;
                  } else {
                    result0 = null;

                    if (reportFailures === 0) {
                      matchFailed("\"::\"");
                    }
                  }

                  if (result0 !== null) {
                    result1 = parse_h16();

                    if (result1 !== null) {
                      if (input.charCodeAt(pos) === 58) {
                        result2 = ":";
                        pos++;
                      } else {
                        result2 = null;

                        if (reportFailures === 0) {
                          matchFailed("\":\"");
                        }
                      }

                      if (result2 !== null) {
                        result3 = parse_ls32();

                        if (result3 !== null) {
                          result0 = [result0, result1, result2, result3];
                        } else {
                          result0 = null;
                          pos = pos1;
                        }
                      } else {
                        result0 = null;
                        pos = pos1;
                      }
                    } else {
                      result0 = null;
                      pos = pos1;
                    }
                  } else {
                    result0 = null;
                    pos = pos1;
                  }

                  if (result0 === null) {
                    pos1 = pos;

                    if (input.substr(pos, 2) === "::") {
                      result0 = "::";
                      pos += 2;
                    } else {
                      result0 = null;

                      if (reportFailures === 0) {
                        matchFailed("\"::\"");
                      }
                    }

                    if (result0 !== null) {
                      result1 = parse_ls32();

                      if (result1 !== null) {
                        result0 = [result0, result1];
                      } else {
                        result0 = null;
                        pos = pos1;
                      }
                    } else {
                      result0 = null;
                      pos = pos1;
                    }

                    if (result0 === null) {
                      pos1 = pos;

                      if (input.substr(pos, 2) === "::") {
                        result0 = "::";
                        pos += 2;
                      } else {
                        result0 = null;

                        if (reportFailures === 0) {
                          matchFailed("\"::\"");
                        }
                      }

                      if (result0 !== null) {
                        result1 = parse_h16();

                        if (result1 !== null) {
                          result0 = [result0, result1];
                        } else {
                          result0 = null;
                          pos = pos1;
                        }
                      } else {
                        result0 = null;
                        pos = pos1;
                      }

                      if (result0 === null) {
                        pos1 = pos;
                        result0 = parse_h16();

                        if (result0 !== null) {
                          if (input.substr(pos, 2) === "::") {
                            result1 = "::";
                            pos += 2;
                          } else {
                            result1 = null;

                            if (reportFailures === 0) {
                              matchFailed("\"::\"");
                            }
                          }

                          if (result1 !== null) {
                            result2 = parse_h16();

                            if (result2 !== null) {
                              if (input.charCodeAt(pos) === 58) {
                                result3 = ":";
                                pos++;
                              } else {
                                result3 = null;

                                if (reportFailures === 0) {
                                  matchFailed("\":\"");
                                }
                              }

                              if (result3 !== null) {
                                result4 = parse_h16();

                                if (result4 !== null) {
                                  if (input.charCodeAt(pos) === 58) {
                                    result5 = ":";
                                    pos++;
                                  } else {
                                    result5 = null;

                                    if (reportFailures === 0) {
                                      matchFailed("\":\"");
                                    }
                                  }

                                  if (result5 !== null) {
                                    result6 = parse_h16();

                                    if (result6 !== null) {
                                      if (input.charCodeAt(pos) === 58) {
                                        result7 = ":";
                                        pos++;
                                      } else {
                                        result7 = null;

                                        if (reportFailures === 0) {
                                          matchFailed("\":\"");
                                        }
                                      }

                                      if (result7 !== null) {
                                        result8 = parse_h16();

                                        if (result8 !== null) {
                                          if (input.charCodeAt(pos) === 58) {
                                            result9 = ":";
                                            pos++;
                                          } else {
                                            result9 = null;

                                            if (reportFailures === 0) {
                                              matchFailed("\":\"");
                                            }
                                          }

                                          if (result9 !== null) {
                                            result10 = parse_ls32();

                                            if (result10 !== null) {
                                              result0 = [result0, result1, result2, result3, result4, result5, result6, result7, result8, result9, result10];
                                            } else {
                                              result0 = null;
                                              pos = pos1;
                                            }
                                          } else {
                                            result0 = null;
                                            pos = pos1;
                                          }
                                        } else {
                                          result0 = null;
                                          pos = pos1;
                                        }
                                      } else {
                                        result0 = null;
                                        pos = pos1;
                                      }
                                    } else {
                                      result0 = null;
                                      pos = pos1;
                                    }
                                  } else {
                                    result0 = null;
                                    pos = pos1;
                                  }
                                } else {
                                  result0 = null;
                                  pos = pos1;
                                }
                              } else {
                                result0 = null;
                                pos = pos1;
                              }
                            } else {
                              result0 = null;
                              pos = pos1;
                            }
                          } else {
                            result0 = null;
                            pos = pos1;
                          }
                        } else {
                          result0 = null;
                          pos = pos1;
                        }

                        if (result0 === null) {
                          pos1 = pos;
                          result0 = parse_h16();

                          if (result0 !== null) {
                            pos2 = pos;

                            if (input.charCodeAt(pos) === 58) {
                              result1 = ":";
                              pos++;
                            } else {
                              result1 = null;

                              if (reportFailures === 0) {
                                matchFailed("\":\"");
                              }
                            }

                            if (result1 !== null) {
                              result2 = parse_h16();

                              if (result2 !== null) {
                                result1 = [result1, result2];
                              } else {
                                result1 = null;
                                pos = pos2;
                              }
                            } else {
                              result1 = null;
                              pos = pos2;
                            }

                            result1 = result1 !== null ? result1 : "";

                            if (result1 !== null) {
                              if (input.substr(pos, 2) === "::") {
                                result2 = "::";
                                pos += 2;
                              } else {
                                result2 = null;

                                if (reportFailures === 0) {
                                  matchFailed("\"::\"");
                                }
                              }

                              if (result2 !== null) {
                                result3 = parse_h16();

                                if (result3 !== null) {
                                  if (input.charCodeAt(pos) === 58) {
                                    result4 = ":";
                                    pos++;
                                  } else {
                                    result4 = null;

                                    if (reportFailures === 0) {
                                      matchFailed("\":\"");
                                    }
                                  }

                                  if (result4 !== null) {
                                    result5 = parse_h16();

                                    if (result5 !== null) {
                                      if (input.charCodeAt(pos) === 58) {
                                        result6 = ":";
                                        pos++;
                                      } else {
                                        result6 = null;

                                        if (reportFailures === 0) {
                                          matchFailed("\":\"");
                                        }
                                      }

                                      if (result6 !== null) {
                                        result7 = parse_h16();

                                        if (result7 !== null) {
                                          if (input.charCodeAt(pos) === 58) {
                                            result8 = ":";
                                            pos++;
                                          } else {
                                            result8 = null;

                                            if (reportFailures === 0) {
                                              matchFailed("\":\"");
                                            }
                                          }

                                          if (result8 !== null) {
                                            result9 = parse_ls32();

                                            if (result9 !== null) {
                                              result0 = [result0, result1, result2, result3, result4, result5, result6, result7, result8, result9];
                                            } else {
                                              result0 = null;
                                              pos = pos1;
                                            }
                                          } else {
                                            result0 = null;
                                            pos = pos1;
                                          }
                                        } else {
                                          result0 = null;
                                          pos = pos1;
                                        }
                                      } else {
                                        result0 = null;
                                        pos = pos1;
                                      }
                                    } else {
                                      result0 = null;
                                      pos = pos1;
                                    }
                                  } else {
                                    result0 = null;
                                    pos = pos1;
                                  }
                                } else {
                                  result0 = null;
                                  pos = pos1;
                                }
                              } else {
                                result0 = null;
                                pos = pos1;
                              }
                            } else {
                              result0 = null;
                              pos = pos1;
                            }
                          } else {
                            result0 = null;
                            pos = pos1;
                          }

                          if (result0 === null) {
                            pos1 = pos;
                            result0 = parse_h16();

                            if (result0 !== null) {
                              pos2 = pos;

                              if (input.charCodeAt(pos) === 58) {
                                result1 = ":";
                                pos++;
                              } else {
                                result1 = null;

                                if (reportFailures === 0) {
                                  matchFailed("\":\"");
                                }
                              }

                              if (result1 !== null) {
                                result2 = parse_h16();

                                if (result2 !== null) {
                                  result1 = [result1, result2];
                                } else {
                                  result1 = null;
                                  pos = pos2;
                                }
                              } else {
                                result1 = null;
                                pos = pos2;
                              }

                              result1 = result1 !== null ? result1 : "";

                              if (result1 !== null) {
                                pos2 = pos;

                                if (input.charCodeAt(pos) === 58) {
                                  result2 = ":";
                                  pos++;
                                } else {
                                  result2 = null;

                                  if (reportFailures === 0) {
                                    matchFailed("\":\"");
                                  }
                                }

                                if (result2 !== null) {
                                  result3 = parse_h16();

                                  if (result3 !== null) {
                                    result2 = [result2, result3];
                                  } else {
                                    result2 = null;
                                    pos = pos2;
                                  }
                                } else {
                                  result2 = null;
                                  pos = pos2;
                                }

                                result2 = result2 !== null ? result2 : "";

                                if (result2 !== null) {
                                  if (input.substr(pos, 2) === "::") {
                                    result3 = "::";
                                    pos += 2;
                                  } else {
                                    result3 = null;

                                    if (reportFailures === 0) {
                                      matchFailed("\"::\"");
                                    }
                                  }

                                  if (result3 !== null) {
                                    result4 = parse_h16();

                                    if (result4 !== null) {
                                      if (input.charCodeAt(pos) === 58) {
                                        result5 = ":";
                                        pos++;
                                      } else {
                                        result5 = null;

                                        if (reportFailures === 0) {
                                          matchFailed("\":\"");
                                        }
                                      }

                                      if (result5 !== null) {
                                        result6 = parse_h16();

                                        if (result6 !== null) {
                                          if (input.charCodeAt(pos) === 58) {
                                            result7 = ":";
                                            pos++;
                                          } else {
                                            result7 = null;

                                            if (reportFailures === 0) {
                                              matchFailed("\":\"");
                                            }
                                          }

                                          if (result7 !== null) {
                                            result8 = parse_ls32();

                                            if (result8 !== null) {
                                              result0 = [result0, result1, result2, result3, result4, result5, result6, result7, result8];
                                            } else {
                                              result0 = null;
                                              pos = pos1;
                                            }
                                          } else {
                                            result0 = null;
                                            pos = pos1;
                                          }
                                        } else {
                                          result0 = null;
                                          pos = pos1;
                                        }
                                      } else {
                                        result0 = null;
                                        pos = pos1;
                                      }
                                    } else {
                                      result0 = null;
                                      pos = pos1;
                                    }
                                  } else {
                                    result0 = null;
                                    pos = pos1;
                                  }
                                } else {
                                  result0 = null;
                                  pos = pos1;
                                }
                              } else {
                                result0 = null;
                                pos = pos1;
                              }
                            } else {
                              result0 = null;
                              pos = pos1;
                            }

                            if (result0 === null) {
                              pos1 = pos;
                              result0 = parse_h16();

                              if (result0 !== null) {
                                pos2 = pos;

                                if (input.charCodeAt(pos) === 58) {
                                  result1 = ":";
                                  pos++;
                                } else {
                                  result1 = null;

                                  if (reportFailures === 0) {
                                    matchFailed("\":\"");
                                  }
                                }

                                if (result1 !== null) {
                                  result2 = parse_h16();

                                  if (result2 !== null) {
                                    result1 = [result1, result2];
                                  } else {
                                    result1 = null;
                                    pos = pos2;
                                  }
                                } else {
                                  result1 = null;
                                  pos = pos2;
                                }

                                result1 = result1 !== null ? result1 : "";

                                if (result1 !== null) {
                                  pos2 = pos;

                                  if (input.charCodeAt(pos) === 58) {
                                    result2 = ":";
                                    pos++;
                                  } else {
                                    result2 = null;

                                    if (reportFailures === 0) {
                                      matchFailed("\":\"");
                                    }
                                  }

                                  if (result2 !== null) {
                                    result3 = parse_h16();

                                    if (result3 !== null) {
                                      result2 = [result2, result3];
                                    } else {
                                      result2 = null;
                                      pos = pos2;
                                    }
                                  } else {
                                    result2 = null;
                                    pos = pos2;
                                  }

                                  result2 = result2 !== null ? result2 : "";

                                  if (result2 !== null) {
                                    pos2 = pos;

                                    if (input.charCodeAt(pos) === 58) {
                                      result3 = ":";
                                      pos++;
                                    } else {
                                      result3 = null;

                                      if (reportFailures === 0) {
                                        matchFailed("\":\"");
                                      }
                                    }

                                    if (result3 !== null) {
                                      result4 = parse_h16();

                                      if (result4 !== null) {
                                        result3 = [result3, result4];
                                      } else {
                                        result3 = null;
                                        pos = pos2;
                                      }
                                    } else {
                                      result3 = null;
                                      pos = pos2;
                                    }

                                    result3 = result3 !== null ? result3 : "";

                                    if (result3 !== null) {
                                      if (input.substr(pos, 2) === "::") {
                                        result4 = "::";
                                        pos += 2;
                                      } else {
                                        result4 = null;

                                        if (reportFailures === 0) {
                                          matchFailed("\"::\"");
                                        }
                                      }

                                      if (result4 !== null) {
                                        result5 = parse_h16();

                                        if (result5 !== null) {
                                          if (input.charCodeAt(pos) === 58) {
                                            result6 = ":";
                                            pos++;
                                          } else {
                                            result6 = null;

                                            if (reportFailures === 0) {
                                              matchFailed("\":\"");
                                            }
                                          }

                                          if (result6 !== null) {
                                            result7 = parse_ls32();

                                            if (result7 !== null) {
                                              result0 = [result0, result1, result2, result3, result4, result5, result6, result7];
                                            } else {
                                              result0 = null;
                                              pos = pos1;
                                            }
                                          } else {
                                            result0 = null;
                                            pos = pos1;
                                          }
                                        } else {
                                          result0 = null;
                                          pos = pos1;
                                        }
                                      } else {
                                        result0 = null;
                                        pos = pos1;
                                      }
                                    } else {
                                      result0 = null;
                                      pos = pos1;
                                    }
                                  } else {
                                    result0 = null;
                                    pos = pos1;
                                  }
                                } else {
                                  result0 = null;
                                  pos = pos1;
                                }
                              } else {
                                result0 = null;
                                pos = pos1;
                              }

                              if (result0 === null) {
                                pos1 = pos;
                                result0 = parse_h16();

                                if (result0 !== null) {
                                  pos2 = pos;

                                  if (input.charCodeAt(pos) === 58) {
                                    result1 = ":";
                                    pos++;
                                  } else {
                                    result1 = null;

                                    if (reportFailures === 0) {
                                      matchFailed("\":\"");
                                    }
                                  }

                                  if (result1 !== null) {
                                    result2 = parse_h16();

                                    if (result2 !== null) {
                                      result1 = [result1, result2];
                                    } else {
                                      result1 = null;
                                      pos = pos2;
                                    }
                                  } else {
                                    result1 = null;
                                    pos = pos2;
                                  }

                                  result1 = result1 !== null ? result1 : "";

                                  if (result1 !== null) {
                                    pos2 = pos;

                                    if (input.charCodeAt(pos) === 58) {
                                      result2 = ":";
                                      pos++;
                                    } else {
                                      result2 = null;

                                      if (reportFailures === 0) {
                                        matchFailed("\":\"");
                                      }
                                    }

                                    if (result2 !== null) {
                                      result3 = parse_h16();

                                      if (result3 !== null) {
                                        result2 = [result2, result3];
                                      } else {
                                        result2 = null;
                                        pos = pos2;
                                      }
                                    } else {
                                      result2 = null;
                                      pos = pos2;
                                    }

                                    result2 = result2 !== null ? result2 : "";

                                    if (result2 !== null) {
                                      pos2 = pos;

                                      if (input.charCodeAt(pos) === 58) {
                                        result3 = ":";
                                        pos++;
                                      } else {
                                        result3 = null;

                                        if (reportFailures === 0) {
                                          matchFailed("\":\"");
                                        }
                                      }

                                      if (result3 !== null) {
                                        result4 = parse_h16();

                                        if (result4 !== null) {
                                          result3 = [result3, result4];
                                        } else {
                                          result3 = null;
                                          pos = pos2;
                                        }
                                      } else {
                                        result3 = null;
                                        pos = pos2;
                                      }

                                      result3 = result3 !== null ? result3 : "";

                                      if (result3 !== null) {
                                        pos2 = pos;

                                        if (input.charCodeAt(pos) === 58) {
                                          result4 = ":";
                                          pos++;
                                        } else {
                                          result4 = null;

                                          if (reportFailures === 0) {
                                            matchFailed("\":\"");
                                          }
                                        }

                                        if (result4 !== null) {
                                          result5 = parse_h16();

                                          if (result5 !== null) {
                                            result4 = [result4, result5];
                                          } else {
                                            result4 = null;
                                            pos = pos2;
                                          }
                                        } else {
                                          result4 = null;
                                          pos = pos2;
                                        }

                                        result4 = result4 !== null ? result4 : "";

                                        if (result4 !== null) {
                                          if (input.substr(pos, 2) === "::") {
                                            result5 = "::";
                                            pos += 2;
                                          } else {
                                            result5 = null;

                                            if (reportFailures === 0) {
                                              matchFailed("\"::\"");
                                            }
                                          }

                                          if (result5 !== null) {
                                            result6 = parse_ls32();

                                            if (result6 !== null) {
                                              result0 = [result0, result1, result2, result3, result4, result5, result6];
                                            } else {
                                              result0 = null;
                                              pos = pos1;
                                            }
                                          } else {
                                            result0 = null;
                                            pos = pos1;
                                          }
                                        } else {
                                          result0 = null;
                                          pos = pos1;
                                        }
                                      } else {
                                        result0 = null;
                                        pos = pos1;
                                      }
                                    } else {
                                      result0 = null;
                                      pos = pos1;
                                    }
                                  } else {
                                    result0 = null;
                                    pos = pos1;
                                  }
                                } else {
                                  result0 = null;
                                  pos = pos1;
                                }

                                if (result0 === null) {
                                  pos1 = pos;
                                  result0 = parse_h16();

                                  if (result0 !== null) {
                                    pos2 = pos;

                                    if (input.charCodeAt(pos) === 58) {
                                      result1 = ":";
                                      pos++;
                                    } else {
                                      result1 = null;

                                      if (reportFailures === 0) {
                                        matchFailed("\":\"");
                                      }
                                    }

                                    if (result1 !== null) {
                                      result2 = parse_h16();

                                      if (result2 !== null) {
                                        result1 = [result1, result2];
                                      } else {
                                        result1 = null;
                                        pos = pos2;
                                      }
                                    } else {
                                      result1 = null;
                                      pos = pos2;
                                    }

                                    result1 = result1 !== null ? result1 : "";

                                    if (result1 !== null) {
                                      pos2 = pos;

                                      if (input.charCodeAt(pos) === 58) {
                                        result2 = ":";
                                        pos++;
                                      } else {
                                        result2 = null;

                                        if (reportFailures === 0) {
                                          matchFailed("\":\"");
                                        }
                                      }

                                      if (result2 !== null) {
                                        result3 = parse_h16();

                                        if (result3 !== null) {
                                          result2 = [result2, result3];
                                        } else {
                                          result2 = null;
                                          pos = pos2;
                                        }
                                      } else {
                                        result2 = null;
                                        pos = pos2;
                                      }

                                      result2 = result2 !== null ? result2 : "";

                                      if (result2 !== null) {
                                        pos2 = pos;

                                        if (input.charCodeAt(pos) === 58) {
                                          result3 = ":";
                                          pos++;
                                        } else {
                                          result3 = null;

                                          if (reportFailures === 0) {
                                            matchFailed("\":\"");
                                          }
                                        }

                                        if (result3 !== null) {
                                          result4 = parse_h16();

                                          if (result4 !== null) {
                                            result3 = [result3, result4];
                                          } else {
                                            result3 = null;
                                            pos = pos2;
                                          }
                                        } else {
                                          result3 = null;
                                          pos = pos2;
                                        }

                                        result3 = result3 !== null ? result3 : "";

                                        if (result3 !== null) {
                                          pos2 = pos;

                                          if (input.charCodeAt(pos) === 58) {
                                            result4 = ":";
                                            pos++;
                                          } else {
                                            result4 = null;

                                            if (reportFailures === 0) {
                                              matchFailed("\":\"");
                                            }
                                          }

                                          if (result4 !== null) {
                                            result5 = parse_h16();

                                            if (result5 !== null) {
                                              result4 = [result4, result5];
                                            } else {
                                              result4 = null;
                                              pos = pos2;
                                            }
                                          } else {
                                            result4 = null;
                                            pos = pos2;
                                          }

                                          result4 = result4 !== null ? result4 : "";

                                          if (result4 !== null) {
                                            pos2 = pos;

                                            if (input.charCodeAt(pos) === 58) {
                                              result5 = ":";
                                              pos++;
                                            } else {
                                              result5 = null;

                                              if (reportFailures === 0) {
                                                matchFailed("\":\"");
                                              }
                                            }

                                            if (result5 !== null) {
                                              result6 = parse_h16();

                                              if (result6 !== null) {
                                                result5 = [result5, result6];
                                              } else {
                                                result5 = null;
                                                pos = pos2;
                                              }
                                            } else {
                                              result5 = null;
                                              pos = pos2;
                                            }

                                            result5 = result5 !== null ? result5 : "";

                                            if (result5 !== null) {
                                              if (input.substr(pos, 2) === "::") {
                                                result6 = "::";
                                                pos += 2;
                                              } else {
                                                result6 = null;

                                                if (reportFailures === 0) {
                                                  matchFailed("\"::\"");
                                                }
                                              }

                                              if (result6 !== null) {
                                                result7 = parse_h16();

                                                if (result7 !== null) {
                                                  result0 = [result0, result1, result2, result3, result4, result5, result6, result7];
                                                } else {
                                                  result0 = null;
                                                  pos = pos1;
                                                }
                                              } else {
                                                result0 = null;
                                                pos = pos1;
                                              }
                                            } else {
                                              result0 = null;
                                              pos = pos1;
                                            }
                                          } else {
                                            result0 = null;
                                            pos = pos1;
                                          }
                                        } else {
                                          result0 = null;
                                          pos = pos1;
                                        }
                                      } else {
                                        result0 = null;
                                        pos = pos1;
                                      }
                                    } else {
                                      result0 = null;
                                      pos = pos1;
                                    }
                                  } else {
                                    result0 = null;
                                    pos = pos1;
                                  }

                                  if (result0 === null) {
                                    pos1 = pos;
                                    result0 = parse_h16();

                                    if (result0 !== null) {
                                      pos2 = pos;

                                      if (input.charCodeAt(pos) === 58) {
                                        result1 = ":";
                                        pos++;
                                      } else {
                                        result1 = null;

                                        if (reportFailures === 0) {
                                          matchFailed("\":\"");
                                        }
                                      }

                                      if (result1 !== null) {
                                        result2 = parse_h16();

                                        if (result2 !== null) {
                                          result1 = [result1, result2];
                                        } else {
                                          result1 = null;
                                          pos = pos2;
                                        }
                                      } else {
                                        result1 = null;
                                        pos = pos2;
                                      }

                                      result1 = result1 !== null ? result1 : "";

                                      if (result1 !== null) {
                                        pos2 = pos;

                                        if (input.charCodeAt(pos) === 58) {
                                          result2 = ":";
                                          pos++;
                                        } else {
                                          result2 = null;

                                          if (reportFailures === 0) {
                                            matchFailed("\":\"");
                                          }
                                        }

                                        if (result2 !== null) {
                                          result3 = parse_h16();

                                          if (result3 !== null) {
                                            result2 = [result2, result3];
                                          } else {
                                            result2 = null;
                                            pos = pos2;
                                          }
                                        } else {
                                          result2 = null;
                                          pos = pos2;
                                        }

                                        result2 = result2 !== null ? result2 : "";

                                        if (result2 !== null) {
                                          pos2 = pos;

                                          if (input.charCodeAt(pos) === 58) {
                                            result3 = ":";
                                            pos++;
                                          } else {
                                            result3 = null;

                                            if (reportFailures === 0) {
                                              matchFailed("\":\"");
                                            }
                                          }

                                          if (result3 !== null) {
                                            result4 = parse_h16();

                                            if (result4 !== null) {
                                              result3 = [result3, result4];
                                            } else {
                                              result3 = null;
                                              pos = pos2;
                                            }
                                          } else {
                                            result3 = null;
                                            pos = pos2;
                                          }

                                          result3 = result3 !== null ? result3 : "";

                                          if (result3 !== null) {
                                            pos2 = pos;

                                            if (input.charCodeAt(pos) === 58) {
                                              result4 = ":";
                                              pos++;
                                            } else {
                                              result4 = null;

                                              if (reportFailures === 0) {
                                                matchFailed("\":\"");
                                              }
                                            }

                                            if (result4 !== null) {
                                              result5 = parse_h16();

                                              if (result5 !== null) {
                                                result4 = [result4, result5];
                                              } else {
                                                result4 = null;
                                                pos = pos2;
                                              }
                                            } else {
                                              result4 = null;
                                              pos = pos2;
                                            }

                                            result4 = result4 !== null ? result4 : "";

                                            if (result4 !== null) {
                                              pos2 = pos;

                                              if (input.charCodeAt(pos) === 58) {
                                                result5 = ":";
                                                pos++;
                                              } else {
                                                result5 = null;

                                                if (reportFailures === 0) {
                                                  matchFailed("\":\"");
                                                }
                                              }

                                              if (result5 !== null) {
                                                result6 = parse_h16();

                                                if (result6 !== null) {
                                                  result5 = [result5, result6];
                                                } else {
                                                  result5 = null;
                                                  pos = pos2;
                                                }
                                              } else {
                                                result5 = null;
                                                pos = pos2;
                                              }

                                              result5 = result5 !== null ? result5 : "";

                                              if (result5 !== null) {
                                                pos2 = pos;

                                                if (input.charCodeAt(pos) === 58) {
                                                  result6 = ":";
                                                  pos++;
                                                } else {
                                                  result6 = null;

                                                  if (reportFailures === 0) {
                                                    matchFailed("\":\"");
                                                  }
                                                }

                                                if (result6 !== null) {
                                                  result7 = parse_h16();

                                                  if (result7 !== null) {
                                                    result6 = [result6, result7];
                                                  } else {
                                                    result6 = null;
                                                    pos = pos2;
                                                  }
                                                } else {
                                                  result6 = null;
                                                  pos = pos2;
                                                }

                                                result6 = result6 !== null ? result6 : "";

                                                if (result6 !== null) {
                                                  if (input.substr(pos, 2) === "::") {
                                                    result7 = "::";
                                                    pos += 2;
                                                  } else {
                                                    result7 = null;

                                                    if (reportFailures === 0) {
                                                      matchFailed("\"::\"");
                                                    }
                                                  }

                                                  if (result7 !== null) {
                                                    result0 = [result0, result1, result2, result3, result4, result5, result6, result7];
                                                  } else {
                                                    result0 = null;
                                                    pos = pos1;
                                                  }
                                                } else {
                                                  result0 = null;
                                                  pos = pos1;
                                                }
                                              } else {
                                                result0 = null;
                                                pos = pos1;
                                              }
                                            } else {
                                              result0 = null;
                                              pos = pos1;
                                            }
                                          } else {
                                            result0 = null;
                                            pos = pos1;
                                          }
                                        } else {
                                          result0 = null;
                                          pos = pos1;
                                        }
                                      } else {
                                        result0 = null;
                                        pos = pos1;
                                      }
                                    } else {
                                      result0 = null;
                                      pos = pos1;
                                    }
                                  }
                                }
                              }
                            }
                          }
                        }
                      }
                    }
                  }
                }
              }
            }
          }
        }

        if (result0 !== null) {
          result0 = function (offset) {
            data.host_type = 'IPv6';
            return input.substring(pos, offset);
          }(pos0);
        }

        if (result0 === null) {
          pos = pos0;
        }

        return result0;
      }

      function parse_h16() {
        var result0, result1, result2, result3;
        var pos0;
        pos0 = pos;
        result0 = parse_HEXDIG();

        if (result0 !== null) {
          result1 = parse_HEXDIG();
          result1 = result1 !== null ? result1 : "";

          if (result1 !== null) {
            result2 = parse_HEXDIG();
            result2 = result2 !== null ? result2 : "";

            if (result2 !== null) {
              result3 = parse_HEXDIG();
              result3 = result3 !== null ? result3 : "";

              if (result3 !== null) {
                result0 = [result0, result1, result2, result3];
              } else {
                result0 = null;
                pos = pos0;
              }
            } else {
              result0 = null;
              pos = pos0;
            }
          } else {
            result0 = null;
            pos = pos0;
          }
        } else {
          result0 = null;
          pos = pos0;
        }

        return result0;
      }

      function parse_ls32() {
        var result0, result1, result2;
        var pos0;
        pos0 = pos;
        result0 = parse_h16();

        if (result0 !== null) {
          if (input.charCodeAt(pos) === 58) {
            result1 = ":";
            pos++;
          } else {
            result1 = null;

            if (reportFailures === 0) {
              matchFailed("\":\"");
            }
          }

          if (result1 !== null) {
            result2 = parse_h16();

            if (result2 !== null) {
              result0 = [result0, result1, result2];
            } else {
              result0 = null;
              pos = pos0;
            }
          } else {
            result0 = null;
            pos = pos0;
          }
        } else {
          result0 = null;
          pos = pos0;
        }

        if (result0 === null) {
          result0 = parse_IPv4address();
        }

        return result0;
      }

      function parse_IPv4address() {
        var result0, result1, result2, result3, result4, result5, result6;
        var pos0, pos1;
        pos0 = pos;
        pos1 = pos;
        result0 = parse_dec_octet();

        if (result0 !== null) {
          if (input.charCodeAt(pos) === 46) {
            result1 = ".";
            pos++;
          } else {
            result1 = null;

            if (reportFailures === 0) {
              matchFailed("\".\"");
            }
          }

          if (result1 !== null) {
            result2 = parse_dec_octet();

            if (result2 !== null) {
              if (input.charCodeAt(pos) === 46) {
                result3 = ".";
                pos++;
              } else {
                result3 = null;

                if (reportFailures === 0) {
                  matchFailed("\".\"");
                }
              }

              if (result3 !== null) {
                result4 = parse_dec_octet();

                if (result4 !== null) {
                  if (input.charCodeAt(pos) === 46) {
                    result5 = ".";
                    pos++;
                  } else {
                    result5 = null;

                    if (reportFailures === 0) {
                      matchFailed("\".\"");
                    }
                  }

                  if (result5 !== null) {
                    result6 = parse_dec_octet();

                    if (result6 !== null) {
                      result0 = [result0, result1, result2, result3, result4, result5, result6];
                    } else {
                      result0 = null;
                      pos = pos1;
                    }
                  } else {
                    result0 = null;
                    pos = pos1;
                  }
                } else {
                  result0 = null;
                  pos = pos1;
                }
              } else {
                result0 = null;
                pos = pos1;
              }
            } else {
              result0 = null;
              pos = pos1;
            }
          } else {
            result0 = null;
            pos = pos1;
          }
        } else {
          result0 = null;
          pos = pos1;
        }

        if (result0 !== null) {
          result0 = function (offset) {
            data.host_type = 'IPv4';
            return input.substring(pos, offset);
          }(pos0);
        }

        if (result0 === null) {
          pos = pos0;
        }

        return result0;
      }

      function parse_dec_octet() {
        var result0, result1, result2;
        var pos0;
        pos0 = pos;

        if (input.substr(pos, 2) === "25") {
          result0 = "25";
          pos += 2;
        } else {
          result0 = null;

          if (reportFailures === 0) {
            matchFailed("\"25\"");
          }
        }

        if (result0 !== null) {
          if (/^[0-5]/.test(input.charAt(pos))) {
            result1 = input.charAt(pos);
            pos++;
          } else {
            result1 = null;

            if (reportFailures === 0) {
              matchFailed("[0-5]");
            }
          }

          if (result1 !== null) {
            result0 = [result0, result1];
          } else {
            result0 = null;
            pos = pos0;
          }
        } else {
          result0 = null;
          pos = pos0;
        }

        if (result0 === null) {
          pos0 = pos;

          if (input.charCodeAt(pos) === 50) {
            result0 = "2";
            pos++;
          } else {
            result0 = null;

            if (reportFailures === 0) {
              matchFailed("\"2\"");
            }
          }

          if (result0 !== null) {
            if (/^[0-4]/.test(input.charAt(pos))) {
              result1 = input.charAt(pos);
              pos++;
            } else {
              result1 = null;

              if (reportFailures === 0) {
                matchFailed("[0-4]");
              }
            }

            if (result1 !== null) {
              result2 = parse_DIGIT();

              if (result2 !== null) {
                result0 = [result0, result1, result2];
              } else {
                result0 = null;
                pos = pos0;
              }
            } else {
              result0 = null;
              pos = pos0;
            }
          } else {
            result0 = null;
            pos = pos0;
          }

          if (result0 === null) {
            pos0 = pos;

            if (input.charCodeAt(pos) === 49) {
              result0 = "1";
              pos++;
            } else {
              result0 = null;

              if (reportFailures === 0) {
                matchFailed("\"1\"");
              }
            }

            if (result0 !== null) {
              result1 = parse_DIGIT();

              if (result1 !== null) {
                result2 = parse_DIGIT();

                if (result2 !== null) {
                  result0 = [result0, result1, result2];
                } else {
                  result0 = null;
                  pos = pos0;
                }
              } else {
                result0 = null;
                pos = pos0;
              }
            } else {
              result0 = null;
              pos = pos0;
            }

            if (result0 === null) {
              pos0 = pos;

              if (/^[1-9]/.test(input.charAt(pos))) {
                result0 = input.charAt(pos);
                pos++;
              } else {
                result0 = null;

                if (reportFailures === 0) {
                  matchFailed("[1-9]");
                }
              }

              if (result0 !== null) {
                result1 = parse_DIGIT();

                if (result1 !== null) {
                  result0 = [result0, result1];
                } else {
                  result0 = null;
                  pos = pos0;
                }
              } else {
                result0 = null;
                pos = pos0;
              }

              if (result0 === null) {
                result0 = parse_DIGIT();
              }
            }
          }
        }

        return result0;
      }

      function parse_port() {
        var result0, result1, result2, result3, result4;
        var pos0, pos1;
        pos0 = pos;
        pos1 = pos;
        result0 = parse_DIGIT();
        result0 = result0 !== null ? result0 : "";

        if (result0 !== null) {
          result1 = parse_DIGIT();
          result1 = result1 !== null ? result1 : "";

          if (result1 !== null) {
            result2 = parse_DIGIT();
            result2 = result2 !== null ? result2 : "";

            if (result2 !== null) {
              result3 = parse_DIGIT();
              result3 = result3 !== null ? result3 : "";

              if (result3 !== null) {
                result4 = parse_DIGIT();
                result4 = result4 !== null ? result4 : "";

                if (result4 !== null) {
                  result0 = [result0, result1, result2, result3, result4];
                } else {
                  result0 = null;
                  pos = pos1;
                }
              } else {
                result0 = null;
                pos = pos1;
              }
            } else {
              result0 = null;
              pos = pos1;
            }
          } else {
            result0 = null;
            pos = pos1;
          }
        } else {
          result0 = null;
          pos = pos1;
        }

        if (result0 !== null) {
          result0 = function (offset, port) {
            port = parseInt(port.join(''));
            data.port = port;
            return port;
          }(pos0, result0);
        }

        if (result0 === null) {
          pos = pos0;
        }

        return result0;
      }

      function parse_uri_parameters() {
        var result0, result1, result2;
        var pos0;
        result0 = [];
        pos0 = pos;

        if (input.charCodeAt(pos) === 59) {
          result1 = ";";
          pos++;
        } else {
          result1 = null;

          if (reportFailures === 0) {
            matchFailed("\";\"");
          }
        }

        if (result1 !== null) {
          result2 = parse_uri_parameter();

          if (result2 !== null) {
            result1 = [result1, result2];
          } else {
            result1 = null;
            pos = pos0;
          }
        } else {
          result1 = null;
          pos = pos0;
        }

        while (result1 !== null) {
          result0.push(result1);
          pos0 = pos;

          if (input.charCodeAt(pos) === 59) {
            result1 = ";";
            pos++;
          } else {
            result1 = null;

            if (reportFailures === 0) {
              matchFailed("\";\"");
            }
          }

          if (result1 !== null) {
            result2 = parse_uri_parameter();

            if (result2 !== null) {
              result1 = [result1, result2];
            } else {
              result1 = null;
              pos = pos0;
            }
          } else {
            result1 = null;
            pos = pos0;
          }
        }

        return result0;
      }

      function parse_uri_parameter() {
        var result0;
        result0 = parse_transport_param();

        if (result0 === null) {
          result0 = parse_user_param();

          if (result0 === null) {
            result0 = parse_method_param();

            if (result0 === null) {
              result0 = parse_ttl_param();

              if (result0 === null) {
                result0 = parse_maddr_param();

                if (result0 === null) {
                  result0 = parse_lr_param();

                  if (result0 === null) {
                    result0 = parse_other_param();
                  }
                }
              }
            }
          }
        }

        return result0;
      }

      function parse_transport_param() {
        var result0, result1;
        var pos0, pos1;
        pos0 = pos;
        pos1 = pos;

        if (input.substr(pos, 10).toLowerCase() === "transport=") {
          result0 = input.substr(pos, 10);
          pos += 10;
        } else {
          result0 = null;

          if (reportFailures === 0) {
            matchFailed("\"transport=\"");
          }
        }

        if (result0 !== null) {
          if (input.substr(pos, 3).toLowerCase() === "udp") {
            result1 = input.substr(pos, 3);
            pos += 3;
          } else {
            result1 = null;

            if (reportFailures === 0) {
              matchFailed("\"udp\"");
            }
          }

          if (result1 === null) {
            if (input.substr(pos, 3).toLowerCase() === "tcp") {
              result1 = input.substr(pos, 3);
              pos += 3;
            } else {
              result1 = null;

              if (reportFailures === 0) {
                matchFailed("\"tcp\"");
              }
            }

            if (result1 === null) {
              if (input.substr(pos, 4).toLowerCase() === "sctp") {
                result1 = input.substr(pos, 4);
                pos += 4;
              } else {
                result1 = null;

                if (reportFailures === 0) {
                  matchFailed("\"sctp\"");
                }
              }

              if (result1 === null) {
                if (input.substr(pos, 3).toLowerCase() === "tls") {
                  result1 = input.substr(pos, 3);
                  pos += 3;
                } else {
                  result1 = null;

                  if (reportFailures === 0) {
                    matchFailed("\"tls\"");
                  }
                }

                if (result1 === null) {
                  result1 = parse_token();
                }
              }
            }
          }

          if (result1 !== null) {
            result0 = [result0, result1];
          } else {
            result0 = null;
            pos = pos1;
          }
        } else {
          result0 = null;
          pos = pos1;
        }

        if (result0 !== null) {
          result0 = function (offset, transport) {
            if (!data.uri_params) data.uri_params = {};
            data.uri_params['transport'] = transport.toLowerCase();
          }(pos0, result0[1]);
        }

        if (result0 === null) {
          pos = pos0;
        }

        return result0;
      }

      function parse_user_param() {
        var result0, result1;
        var pos0, pos1;
        pos0 = pos;
        pos1 = pos;

        if (input.substr(pos, 5).toLowerCase() === "user=") {
          result0 = input.substr(pos, 5);
          pos += 5;
        } else {
          result0 = null;

          if (reportFailures === 0) {
            matchFailed("\"user=\"");
          }
        }

        if (result0 !== null) {
          if (input.substr(pos, 5).toLowerCase() === "phone") {
            result1 = input.substr(pos, 5);
            pos += 5;
          } else {
            result1 = null;

            if (reportFailures === 0) {
              matchFailed("\"phone\"");
            }
          }

          if (result1 === null) {
            if (input.substr(pos, 2).toLowerCase() === "ip") {
              result1 = input.substr(pos, 2);
              pos += 2;
            } else {
              result1 = null;

              if (reportFailures === 0) {
                matchFailed("\"ip\"");
              }
            }

            if (result1 === null) {
              result1 = parse_token();
            }
          }

          if (result1 !== null) {
            result0 = [result0, result1];
          } else {
            result0 = null;
            pos = pos1;
          }
        } else {
          result0 = null;
          pos = pos1;
        }

        if (result0 !== null) {
          result0 = function (offset, user) {
            if (!data.uri_params) data.uri_params = {};
            data.uri_params['user'] = user.toLowerCase();
          }(pos0, result0[1]);
        }

        if (result0 === null) {
          pos = pos0;
        }

        return result0;
      }

      function parse_method_param() {
        var result0, result1;
        var pos0, pos1;
        pos0 = pos;
        pos1 = pos;

        if (input.substr(pos, 7).toLowerCase() === "method=") {
          result0 = input.substr(pos, 7);
          pos += 7;
        } else {
          result0 = null;

          if (reportFailures === 0) {
            matchFailed("\"method=\"");
          }
        }

        if (result0 !== null) {
          result1 = parse_Method();

          if (result1 !== null) {
            result0 = [result0, result1];
          } else {
            result0 = null;
            pos = pos1;
          }
        } else {
          result0 = null;
          pos = pos1;
        }

        if (result0 !== null) {
          result0 = function (offset, method) {
            if (!data.uri_params) data.uri_params = {};
            data.uri_params['method'] = method;
          }(pos0, result0[1]);
        }

        if (result0 === null) {
          pos = pos0;
        }

        return result0;
      }

      function parse_ttl_param() {
        var result0, result1;
        var pos0, pos1;
        pos0 = pos;
        pos1 = pos;

        if (input.substr(pos, 4).toLowerCase() === "ttl=") {
          result0 = input.substr(pos, 4);
          pos += 4;
        } else {
          result0 = null;

          if (reportFailures === 0) {
            matchFailed("\"ttl=\"");
          }
        }

        if (result0 !== null) {
          result1 = parse_ttl();

          if (result1 !== null) {
            result0 = [result0, result1];
          } else {
            result0 = null;
            pos = pos1;
          }
        } else {
          result0 = null;
          pos = pos1;
        }

        if (result0 !== null) {
          result0 = function (offset, ttl) {
            if (!data.params) data.params = {};
            data.params['ttl'] = ttl;
          }(pos0, result0[1]);
        }

        if (result0 === null) {
          pos = pos0;
        }

        return result0;
      }

      function parse_maddr_param() {
        var result0, result1;
        var pos0, pos1;
        pos0 = pos;
        pos1 = pos;

        if (input.substr(pos, 6).toLowerCase() === "maddr=") {
          result0 = input.substr(pos, 6);
          pos += 6;
        } else {
          result0 = null;

          if (reportFailures === 0) {
            matchFailed("\"maddr=\"");
          }
        }

        if (result0 !== null) {
          result1 = parse_host();

          if (result1 !== null) {
            result0 = [result0, result1];
          } else {
            result0 = null;
            pos = pos1;
          }
        } else {
          result0 = null;
          pos = pos1;
        }

        if (result0 !== null) {
          result0 = function (offset, maddr) {
            if (!data.uri_params) data.uri_params = {};
            data.uri_params['maddr'] = maddr;
          }(pos0, result0[1]);
        }

        if (result0 === null) {
          pos = pos0;
        }

        return result0;
      }

      function parse_lr_param() {
        var result0, result1, result2;
        var pos0, pos1, pos2;
        pos0 = pos;
        pos1 = pos;

        if (input.substr(pos, 2).toLowerCase() === "lr") {
          result0 = input.substr(pos, 2);
          pos += 2;
        } else {
          result0 = null;

          if (reportFailures === 0) {
            matchFailed("\"lr\"");
          }
        }

        if (result0 !== null) {
          pos2 = pos;

          if (input.charCodeAt(pos) === 61) {
            result1 = "=";
            pos++;
          } else {
            result1 = null;

            if (reportFailures === 0) {
              matchFailed("\"=\"");
            }
          }

          if (result1 !== null) {
            result2 = parse_token();

            if (result2 !== null) {
              result1 = [result1, result2];
            } else {
              result1 = null;
              pos = pos2;
            }
          } else {
            result1 = null;
            pos = pos2;
          }

          result1 = result1 !== null ? result1 : "";

          if (result1 !== null) {
            result0 = [result0, result1];
          } else {
            result0 = null;
            pos = pos1;
          }
        } else {
          result0 = null;
          pos = pos1;
        }

        if (result0 !== null) {
          result0 = function (offset) {
            if (!data.uri_params) data.uri_params = {};
            data.uri_params['lr'] = undefined;
          }(pos0);
        }

        if (result0 === null) {
          pos = pos0;
        }

        return result0;
      }

      function parse_other_param() {
        var result0, result1, result2;
        var pos0, pos1, pos2;
        pos0 = pos;
        pos1 = pos;
        result0 = parse_pname();

        if (result0 !== null) {
          pos2 = pos;

          if (input.charCodeAt(pos) === 61) {
            result1 = "=";
            pos++;
          } else {
            result1 = null;

            if (reportFailures === 0) {
              matchFailed("\"=\"");
            }
          }

          if (result1 !== null) {
            result2 = parse_pvalue();

            if (result2 !== null) {
              result1 = [result1, result2];
            } else {
              result1 = null;
              pos = pos2;
            }
          } else {
            result1 = null;
            pos = pos2;
          }

          result1 = result1 !== null ? result1 : "";

          if (result1 !== null) {
            result0 = [result0, result1];
          } else {
            result0 = null;
            pos = pos1;
          }
        } else {
          result0 = null;
          pos = pos1;
        }

        if (result0 !== null) {
          result0 = function (offset, param, value) {
            if (!data.uri_params) data.uri_params = {};

            if (typeof value === 'undefined') {
              value = undefined;
            } else {
              value = value[1];
            }

            data.uri_params[param.toLowerCase()] = value;
          }(pos0, result0[0], result0[1]);
        }

        if (result0 === null) {
          pos = pos0;
        }

        return result0;
      }

      function parse_pname() {
        var result0, result1;
        var pos0;
        pos0 = pos;
        result1 = parse_paramchar();

        if (result1 !== null) {
          result0 = [];

          while (result1 !== null) {
            result0.push(result1);
            result1 = parse_paramchar();
          }
        } else {
          result0 = null;
        }

        if (result0 !== null) {
          result0 = function (offset, pname) {
            return pname.join('');
          }(pos0, result0);
        }

        if (result0 === null) {
          pos = pos0;
        }

        return result0;
      }

      function parse_pvalue() {
        var result0, result1;
        var pos0;
        pos0 = pos;
        result1 = parse_paramchar();

        if (result1 !== null) {
          result0 = [];

          while (result1 !== null) {
            result0.push(result1);
            result1 = parse_paramchar();
          }
        } else {
          result0 = null;
        }

        if (result0 !== null) {
          result0 = function (offset, pvalue) {
            return pvalue.join('');
          }(pos0, result0);
        }

        if (result0 === null) {
          pos = pos0;
        }

        return result0;
      }

      function parse_paramchar() {
        var result0;
        result0 = parse_param_unreserved();

        if (result0 === null) {
          result0 = parse_unreserved();

          if (result0 === null) {
            result0 = parse_escaped();
          }
        }

        return result0;
      }

      function parse_param_unreserved() {
        var result0;

        if (input.charCodeAt(pos) === 91) {
          result0 = "[";
          pos++;
        } else {
          result0 = null;

          if (reportFailures === 0) {
            matchFailed("\"[\"");
          }
        }

        if (result0 === null) {
          if (input.charCodeAt(pos) === 93) {
            result0 = "]";
            pos++;
          } else {
            result0 = null;

            if (reportFailures === 0) {
              matchFailed("\"]\"");
            }
          }

          if (result0 === null) {
            if (input.charCodeAt(pos) === 47) {
              result0 = "/";
              pos++;
            } else {
              result0 = null;

              if (reportFailures === 0) {
                matchFailed("\"/\"");
              }
            }

            if (result0 === null) {
              if (input.charCodeAt(pos) === 58) {
                result0 = ":";
                pos++;
              } else {
                result0 = null;

                if (reportFailures === 0) {
                  matchFailed("\":\"");
                }
              }

              if (result0 === null) {
                if (input.charCodeAt(pos) === 38) {
                  result0 = "&";
                  pos++;
                } else {
                  result0 = null;

                  if (reportFailures === 0) {
                    matchFailed("\"&\"");
                  }
                }

                if (result0 === null) {
                  if (input.charCodeAt(pos) === 43) {
                    result0 = "+";
                    pos++;
                  } else {
                    result0 = null;

                    if (reportFailures === 0) {
                      matchFailed("\"+\"");
                    }
                  }

                  if (result0 === null) {
                    if (input.charCodeAt(pos) === 36) {
                      result0 = "$";
                      pos++;
                    } else {
                      result0 = null;

                      if (reportFailures === 0) {
                        matchFailed("\"$\"");
                      }
                    }
                  }
                }
              }
            }
          }
        }

        return result0;
      }

      function parse_headers() {
        var result0, result1, result2, result3, result4;
        var pos0, pos1;
        pos0 = pos;

        if (input.charCodeAt(pos) === 63) {
          result0 = "?";
          pos++;
        } else {
          result0 = null;

          if (reportFailures === 0) {
            matchFailed("\"?\"");
          }
        }

        if (result0 !== null) {
          result1 = parse_header();

          if (result1 !== null) {
            result2 = [];
            pos1 = pos;

            if (input.charCodeAt(pos) === 38) {
              result3 = "&";
              pos++;
            } else {
              result3 = null;

              if (reportFailures === 0) {
                matchFailed("\"&\"");
              }
            }

            if (result3 !== null) {
              result4 = parse_header();

              if (result4 !== null) {
                result3 = [result3, result4];
              } else {
                result3 = null;
                pos = pos1;
              }
            } else {
              result3 = null;
              pos = pos1;
            }

            while (result3 !== null) {
              result2.push(result3);
              pos1 = pos;

              if (input.charCodeAt(pos) === 38) {
                result3 = "&";
                pos++;
              } else {
                result3 = null;

                if (reportFailures === 0) {
                  matchFailed("\"&\"");
                }
              }

              if (result3 !== null) {
                result4 = parse_header();

                if (result4 !== null) {
                  result3 = [result3, result4];
                } else {
                  result3 = null;
                  pos = pos1;
                }
              } else {
                result3 = null;
                pos = pos1;
              }
            }

            if (result2 !== null) {
              result0 = [result0, result1, result2];
            } else {
              result0 = null;
              pos = pos0;
            }
          } else {
            result0 = null;
            pos = pos0;
          }
        } else {
          result0 = null;
          pos = pos0;
        }

        return result0;
      }

      function parse_header() {
        var result0, result1, result2;
        var pos0, pos1;
        pos0 = pos;
        pos1 = pos;
        result0 = parse_hname();

        if (result0 !== null) {
          if (input.charCodeAt(pos) === 61) {
            result1 = "=";
            pos++;
          } else {
            result1 = null;

            if (reportFailures === 0) {
              matchFailed("\"=\"");
            }
          }

          if (result1 !== null) {
            result2 = parse_hvalue();

            if (result2 !== null) {
              result0 = [result0, result1, result2];
            } else {
              result0 = null;
              pos = pos1;
            }
          } else {
            result0 = null;
            pos = pos1;
          }
        } else {
          result0 = null;
          pos = pos1;
        }

        if (result0 !== null) {
          result0 = function (offset, hname, hvalue) {
            hname = hname.join('').toLowerCase();
            hvalue = hvalue.join('');
            if (!data.uri_headers) data.uri_headers = {};

            if (!data.uri_headers[hname]) {
              data.uri_headers[hname] = [hvalue];
            } else {
              data.uri_headers[hname].push(hvalue);
            }
          }(pos0, result0[0], result0[2]);
        }

        if (result0 === null) {
          pos = pos0;
        }

        return result0;
      }

      function parse_hname() {
        var result0, result1;
        result1 = parse_hnv_unreserved();

        if (result1 === null) {
          result1 = parse_unreserved();

          if (result1 === null) {
            result1 = parse_escaped();
          }
        }

        if (result1 !== null) {
          result0 = [];

          while (result1 !== null) {
            result0.push(result1);
            result1 = parse_hnv_unreserved();

            if (result1 === null) {
              result1 = parse_unreserved();

              if (result1 === null) {
                result1 = parse_escaped();
              }
            }
          }
        } else {
          result0 = null;
        }

        return result0;
      }

      function parse_hvalue() {
        var result0, result1;
        result0 = [];
        result1 = parse_hnv_unreserved();

        if (result1 === null) {
          result1 = parse_unreserved();

          if (result1 === null) {
            result1 = parse_escaped();
          }
        }

        while (result1 !== null) {
          result0.push(result1);
          result1 = parse_hnv_unreserved();

          if (result1 === null) {
            result1 = parse_unreserved();

            if (result1 === null) {
              result1 = parse_escaped();
            }
          }
        }

        return result0;
      }

      function parse_hnv_unreserved() {
        var result0;

        if (input.charCodeAt(pos) === 91) {
          result0 = "[";
          pos++;
        } else {
          result0 = null;

          if (reportFailures === 0) {
            matchFailed("\"[\"");
          }
        }

        if (result0 === null) {
          if (input.charCodeAt(pos) === 93) {
            result0 = "]";
            pos++;
          } else {
            result0 = null;

            if (reportFailures === 0) {
              matchFailed("\"]\"");
            }
          }

          if (result0 === null) {
            if (input.charCodeAt(pos) === 47) {
              result0 = "/";
              pos++;
            } else {
              result0 = null;

              if (reportFailures === 0) {
                matchFailed("\"/\"");
              }
            }

            if (result0 === null) {
              if (input.charCodeAt(pos) === 63) {
                result0 = "?";
                pos++;
              } else {
                result0 = null;

                if (reportFailures === 0) {
                  matchFailed("\"?\"");
                }
              }

              if (result0 === null) {
                if (input.charCodeAt(pos) === 58) {
                  result0 = ":";
                  pos++;
                } else {
                  result0 = null;

                  if (reportFailures === 0) {
                    matchFailed("\":\"");
                  }
                }

                if (result0 === null) {
                  if (input.charCodeAt(pos) === 43) {
                    result0 = "+";
                    pos++;
                  } else {
                    result0 = null;

                    if (reportFailures === 0) {
                      matchFailed("\"+\"");
                    }
                  }

                  if (result0 === null) {
                    if (input.charCodeAt(pos) === 36) {
                      result0 = "$";
                      pos++;
                    } else {
                      result0 = null;

                      if (reportFailures === 0) {
                        matchFailed("\"$\"");
                      }
                    }
                  }
                }
              }
            }
          }
        }

        return result0;
      }

      function parse_Request_Response() {
        var result0;
        result0 = parse_Status_Line();

        if (result0 === null) {
          result0 = parse_Request_Line();
        }

        return result0;
      }

      function parse_Request_Line() {
        var result0, result1, result2, result3, result4;
        var pos0;
        pos0 = pos;
        result0 = parse_Method();

        if (result0 !== null) {
          result1 = parse_SP();

          if (result1 !== null) {
            result2 = parse_Request_URI();

            if (result2 !== null) {
              result3 = parse_SP();

              if (result3 !== null) {
                result4 = parse_SIP_Version();

                if (result4 !== null) {
                  result0 = [result0, result1, result2, result3, result4];
                } else {
                  result0 = null;
                  pos = pos0;
                }
              } else {
                result0 = null;
                pos = pos0;
              }
            } else {
              result0 = null;
              pos = pos0;
            }
          } else {
            result0 = null;
            pos = pos0;
          }
        } else {
          result0 = null;
          pos = pos0;
        }

        return result0;
      }

      function parse_Request_URI() {
        var result0;
        result0 = parse_SIP_URI();

        if (result0 === null) {
          result0 = parse_absoluteURI();
        }

        return result0;
      }

      function parse_absoluteURI() {
        var result0, result1, result2;
        var pos0;
        pos0 = pos;
        result0 = parse_scheme();

        if (result0 !== null) {
          if (input.charCodeAt(pos) === 58) {
            result1 = ":";
            pos++;
          } else {
            result1 = null;

            if (reportFailures === 0) {
              matchFailed("\":\"");
            }
          }

          if (result1 !== null) {
            result2 = parse_hier_part();

            if (result2 === null) {
              result2 = parse_opaque_part();
            }

            if (result2 !== null) {
              result0 = [result0, result1, result2];
            } else {
              result0 = null;
              pos = pos0;
            }
          } else {
            result0 = null;
            pos = pos0;
          }
        } else {
          result0 = null;
          pos = pos0;
        }

        return result0;
      }

      function parse_hier_part() {
        var result0, result1, result2;
        var pos0, pos1;
        pos0 = pos;
        result0 = parse_net_path();

        if (result0 === null) {
          result0 = parse_abs_path();
        }

        if (result0 !== null) {
          pos1 = pos;

          if (input.charCodeAt(pos) === 63) {
            result1 = "?";
            pos++;
          } else {
            result1 = null;

            if (reportFailures === 0) {
              matchFailed("\"?\"");
            }
          }

          if (result1 !== null) {
            result2 = parse_query();

            if (result2 !== null) {
              result1 = [result1, result2];
            } else {
              result1 = null;
              pos = pos1;
            }
          } else {
            result1 = null;
            pos = pos1;
          }

          result1 = result1 !== null ? result1 : "";

          if (result1 !== null) {
            result0 = [result0, result1];
          } else {
            result0 = null;
            pos = pos0;
          }
        } else {
          result0 = null;
          pos = pos0;
        }

        return result0;
      }

      function parse_net_path() {
        var result0, result1, result2;
        var pos0;
        pos0 = pos;

        if (input.substr(pos, 2) === "//") {
          result0 = "//";
          pos += 2;
        } else {
          result0 = null;

          if (reportFailures === 0) {
            matchFailed("\"//\"");
          }
        }

        if (result0 !== null) {
          result1 = parse_authority();

          if (result1 !== null) {
            result2 = parse_abs_path();
            result2 = result2 !== null ? result2 : "";

            if (result2 !== null) {
              result0 = [result0, result1, result2];
            } else {
              result0 = null;
              pos = pos0;
            }
          } else {
            result0 = null;
            pos = pos0;
          }
        } else {
          result0 = null;
          pos = pos0;
        }

        return result0;
      }

      function parse_abs_path() {
        var result0, result1;
        var pos0;
        pos0 = pos;

        if (input.charCodeAt(pos) === 47) {
          result0 = "/";
          pos++;
        } else {
          result0 = null;

          if (reportFailures === 0) {
            matchFailed("\"/\"");
          }
        }

        if (result0 !== null) {
          result1 = parse_path_segments();

          if (result1 !== null) {
            result0 = [result0, result1];
          } else {
            result0 = null;
            pos = pos0;
          }
        } else {
          result0 = null;
          pos = pos0;
        }

        return result0;
      }

      function parse_opaque_part() {
        var result0, result1, result2;
        var pos0;
        pos0 = pos;
        result0 = parse_uric_no_slash();

        if (result0 !== null) {
          result1 = [];
          result2 = parse_uric();

          while (result2 !== null) {
            result1.push(result2);
            result2 = parse_uric();
          }

          if (result1 !== null) {
            result0 = [result0, result1];
          } else {
            result0 = null;
            pos = pos0;
          }
        } else {
          result0 = null;
          pos = pos0;
        }

        return result0;
      }

      function parse_uric() {
        var result0;
        result0 = parse_reserved();

        if (result0 === null) {
          result0 = parse_unreserved();

          if (result0 === null) {
            result0 = parse_escaped();
          }
        }

        return result0;
      }

      function parse_uric_no_slash() {
        var result0;
        result0 = parse_unreserved();

        if (result0 === null) {
          result0 = parse_escaped();

          if (result0 === null) {
            if (input.charCodeAt(pos) === 59) {
              result0 = ";";
              pos++;
            } else {
              result0 = null;

              if (reportFailures === 0) {
                matchFailed("\";\"");
              }
            }

            if (result0 === null) {
              if (input.charCodeAt(pos) === 63) {
                result0 = "?";
                pos++;
              } else {
                result0 = null;

                if (reportFailures === 0) {
                  matchFailed("\"?\"");
                }
              }

              if (result0 === null) {
                if (input.charCodeAt(pos) === 58) {
                  result0 = ":";
                  pos++;
                } else {
                  result0 = null;

                  if (reportFailures === 0) {
                    matchFailed("\":\"");
                  }
                }

                if (result0 === null) {
                  if (input.charCodeAt(pos) === 64) {
                    result0 = "@";
                    pos++;
                  } else {
                    result0 = null;

                    if (reportFailures === 0) {
                      matchFailed("\"@\"");
                    }
                  }

                  if (result0 === null) {
                    if (input.charCodeAt(pos) === 38) {
                      result0 = "&";
                      pos++;
                    } else {
                      result0 = null;

                      if (reportFailures === 0) {
                        matchFailed("\"&\"");
                      }
                    }

                    if (result0 === null) {
                      if (input.charCodeAt(pos) === 61) {
                        result0 = "=";
                        pos++;
                      } else {
                        result0 = null;

                        if (reportFailures === 0) {
                          matchFailed("\"=\"");
                        }
                      }

                      if (result0 === null) {
                        if (input.charCodeAt(pos) === 43) {
                          result0 = "+";
                          pos++;
                        } else {
                          result0 = null;

                          if (reportFailures === 0) {
                            matchFailed("\"+\"");
                          }
                        }

                        if (result0 === null) {
                          if (input.charCodeAt(pos) === 36) {
                            result0 = "$";
                            pos++;
                          } else {
                            result0 = null;

                            if (reportFailures === 0) {
                              matchFailed("\"$\"");
                            }
                          }

                          if (result0 === null) {
                            if (input.charCodeAt(pos) === 44) {
                              result0 = ",";
                              pos++;
                            } else {
                              result0 = null;

                              if (reportFailures === 0) {
                                matchFailed("\",\"");
                              }
                            }
                          }
                        }
                      }
                    }
                  }
                }
              }
            }
          }
        }

        return result0;
      }

      function parse_path_segments() {
        var result0, result1, result2, result3;
        var pos0, pos1;
        pos0 = pos;
        result0 = parse_segment();

        if (result0 !== null) {
          result1 = [];
          pos1 = pos;

          if (input.charCodeAt(pos) === 47) {
            result2 = "/";
            pos++;
          } else {
            result2 = null;

            if (reportFailures === 0) {
              matchFailed("\"/\"");
            }
          }

          if (result2 !== null) {
            result3 = parse_segment();

            if (result3 !== null) {
              result2 = [result2, result3];
            } else {
              result2 = null;
              pos = pos1;
            }
          } else {
            result2 = null;
            pos = pos1;
          }

          while (result2 !== null) {
            result1.push(result2);
            pos1 = pos;

            if (input.charCodeAt(pos) === 47) {
              result2 = "/";
              pos++;
            } else {
              result2 = null;

              if (reportFailures === 0) {
                matchFailed("\"/\"");
              }
            }

            if (result2 !== null) {
              result3 = parse_segment();

              if (result3 !== null) {
                result2 = [result2, result3];
              } else {
                result2 = null;
                pos = pos1;
              }
            } else {
              result2 = null;
              pos = pos1;
            }
          }

          if (result1 !== null) {
            result0 = [result0, result1];
          } else {
            result0 = null;
            pos = pos0;
          }
        } else {
          result0 = null;
          pos = pos0;
        }

        return result0;
      }

      function parse_segment() {
        var result0, result1, result2, result3;
        var pos0, pos1;
        pos0 = pos;
        result0 = [];
        result1 = parse_pchar();

        while (result1 !== null) {
          result0.push(result1);
          result1 = parse_pchar();
        }

        if (result0 !== null) {
          result1 = [];
          pos1 = pos;

          if (input.charCodeAt(pos) === 59) {
            result2 = ";";
            pos++;
          } else {
            result2 = null;

            if (reportFailures === 0) {
              matchFailed("\";\"");
            }
          }

          if (result2 !== null) {
            result3 = parse_param();

            if (result3 !== null) {
              result2 = [result2, result3];
            } else {
              result2 = null;
              pos = pos1;
            }
          } else {
            result2 = null;
            pos = pos1;
          }

          while (result2 !== null) {
            result1.push(result2);
            pos1 = pos;

            if (input.charCodeAt(pos) === 59) {
              result2 = ";";
              pos++;
            } else {
              result2 = null;

              if (reportFailures === 0) {
                matchFailed("\";\"");
              }
            }

            if (result2 !== null) {
              result3 = parse_param();

              if (result3 !== null) {
                result2 = [result2, result3];
              } else {
                result2 = null;
                pos = pos1;
              }
            } else {
              result2 = null;
              pos = pos1;
            }
          }

          if (result1 !== null) {
            result0 = [result0, result1];
          } else {
            result0 = null;
            pos = pos0;
          }
        } else {
          result0 = null;
          pos = pos0;
        }

        return result0;
      }

      function parse_param() {
        var result0, result1;
        result0 = [];
        result1 = parse_pchar();

        while (result1 !== null) {
          result0.push(result1);
          result1 = parse_pchar();
        }

        return result0;
      }

      function parse_pchar() {
        var result0;
        result0 = parse_unreserved();

        if (result0 === null) {
          result0 = parse_escaped();

          if (result0 === null) {
            if (input.charCodeAt(pos) === 58) {
              result0 = ":";
              pos++;
            } else {
              result0 = null;

              if (reportFailures === 0) {
                matchFailed("\":\"");
              }
            }

            if (result0 === null) {
              if (input.charCodeAt(pos) === 64) {
                result0 = "@";
                pos++;
              } else {
                result0 = null;

                if (reportFailures === 0) {
                  matchFailed("\"@\"");
                }
              }

              if (result0 === null) {
                if (input.charCodeAt(pos) === 38) {
                  result0 = "&";
                  pos++;
                } else {
                  result0 = null;

                  if (reportFailures === 0) {
                    matchFailed("\"&\"");
                  }
                }

                if (result0 === null) {
                  if (input.charCodeAt(pos) === 61) {
                    result0 = "=";
                    pos++;
                  } else {
                    result0 = null;

                    if (reportFailures === 0) {
                      matchFailed("\"=\"");
                    }
                  }

                  if (result0 === null) {
                    if (input.charCodeAt(pos) === 43) {
                      result0 = "+";
                      pos++;
                    } else {
                      result0 = null;

                      if (reportFailures === 0) {
                        matchFailed("\"+\"");
                      }
                    }

                    if (result0 === null) {
                      if (input.charCodeAt(pos) === 36) {
                        result0 = "$";
                        pos++;
                      } else {
                        result0 = null;

                        if (reportFailures === 0) {
                          matchFailed("\"$\"");
                        }
                      }

                      if (result0 === null) {
                        if (input.charCodeAt(pos) === 44) {
                          result0 = ",";
                          pos++;
                        } else {
                          result0 = null;

                          if (reportFailures === 0) {
                            matchFailed("\",\"");
                          }
                        }
                      }
                    }
                  }
                }
              }
            }
          }
        }

        return result0;
      }

      function parse_scheme() {
        var result0, result1, result2;
        var pos0, pos1;
        pos0 = pos;
        pos1 = pos;
        result0 = parse_ALPHA();

        if (result0 !== null) {
          result1 = [];
          result2 = parse_ALPHA();

          if (result2 === null) {
            result2 = parse_DIGIT();

            if (result2 === null) {
              if (input.charCodeAt(pos) === 43) {
                result2 = "+";
                pos++;
              } else {
                result2 = null;

                if (reportFailures === 0) {
                  matchFailed("\"+\"");
                }
              }

              if (result2 === null) {
                if (input.charCodeAt(pos) === 45) {
                  result2 = "-";
                  pos++;
                } else {
                  result2 = null;

                  if (reportFailures === 0) {
                    matchFailed("\"-\"");
                  }
                }

                if (result2 === null) {
                  if (input.charCodeAt(pos) === 46) {
                    result2 = ".";
                    pos++;
                  } else {
                    result2 = null;

                    if (reportFailures === 0) {
                      matchFailed("\".\"");
                    }
                  }
                }
              }
            }
          }

          while (result2 !== null) {
            result1.push(result2);
            result2 = parse_ALPHA();

            if (result2 === null) {
              result2 = parse_DIGIT();

              if (result2 === null) {
                if (input.charCodeAt(pos) === 43) {
                  result2 = "+";
                  pos++;
                } else {
                  result2 = null;

                  if (reportFailures === 0) {
                    matchFailed("\"+\"");
                  }
                }

                if (result2 === null) {
                  if (input.charCodeAt(pos) === 45) {
                    result2 = "-";
                    pos++;
                  } else {
                    result2 = null;

                    if (reportFailures === 0) {
                      matchFailed("\"-\"");
                    }
                  }

                  if (result2 === null) {
                    if (input.charCodeAt(pos) === 46) {
                      result2 = ".";
                      pos++;
                    } else {
                      result2 = null;

                      if (reportFailures === 0) {
                        matchFailed("\".\"");
                      }
                    }
                  }
                }
              }
            }
          }

          if (result1 !== null) {
            result0 = [result0, result1];
          } else {
            result0 = null;
            pos = pos1;
          }
        } else {
          result0 = null;
          pos = pos1;
        }

        if (result0 !== null) {
          result0 = function (offset) {
            data.scheme = input.substring(pos, offset);
          }(pos0);
        }

        if (result0 === null) {
          pos = pos0;
        }

        return result0;
      }

      function parse_authority() {
        var result0;
        result0 = parse_srvr();

        if (result0 === null) {
          result0 = parse_reg_name();
        }

        return result0;
      }

      function parse_srvr() {
        var result0, result1;
        var pos0, pos1;
        pos0 = pos;
        pos1 = pos;
        result0 = parse_userinfo();

        if (result0 !== null) {
          if (input.charCodeAt(pos) === 64) {
            result1 = "@";
            pos++;
          } else {
            result1 = null;

            if (reportFailures === 0) {
              matchFailed("\"@\"");
            }
          }

          if (result1 !== null) {
            result0 = [result0, result1];
          } else {
            result0 = null;
            pos = pos1;
          }
        } else {
          result0 = null;
          pos = pos1;
        }

        result0 = result0 !== null ? result0 : "";

        if (result0 !== null) {
          result1 = parse_hostport();

          if (result1 !== null) {
            result0 = [result0, result1];
          } else {
            result0 = null;
            pos = pos0;
          }
        } else {
          result0 = null;
          pos = pos0;
        }

        result0 = result0 !== null ? result0 : "";
        return result0;
      }

      function parse_reg_name() {
        var result0, result1;
        result1 = parse_unreserved();

        if (result1 === null) {
          result1 = parse_escaped();

          if (result1 === null) {
            if (input.charCodeAt(pos) === 36) {
              result1 = "$";
              pos++;
            } else {
              result1 = null;

              if (reportFailures === 0) {
                matchFailed("\"$\"");
              }
            }

            if (result1 === null) {
              if (input.charCodeAt(pos) === 44) {
                result1 = ",";
                pos++;
              } else {
                result1 = null;

                if (reportFailures === 0) {
                  matchFailed("\",\"");
                }
              }

              if (result1 === null) {
                if (input.charCodeAt(pos) === 59) {
                  result1 = ";";
                  pos++;
                } else {
                  result1 = null;

                  if (reportFailures === 0) {
                    matchFailed("\";\"");
                  }
                }

                if (result1 === null) {
                  if (input.charCodeAt(pos) === 58) {
                    result1 = ":";
                    pos++;
                  } else {
                    result1 = null;

                    if (reportFailures === 0) {
                      matchFailed("\":\"");
                    }
                  }

                  if (result1 === null) {
                    if (input.charCodeAt(pos) === 64) {
                      result1 = "@";
                      pos++;
                    } else {
                      result1 = null;

                      if (reportFailures === 0) {
                        matchFailed("\"@\"");
                      }
                    }

                    if (result1 === null) {
                      if (input.charCodeAt(pos) === 38) {
                        result1 = "&";
                        pos++;
                      } else {
                        result1 = null;

                        if (reportFailures === 0) {
                          matchFailed("\"&\"");
                        }
                      }

                      if (result1 === null) {
                        if (input.charCodeAt(pos) === 61) {
                          result1 = "=";
                          pos++;
                        } else {
                          result1 = null;

                          if (reportFailures === 0) {
                            matchFailed("\"=\"");
                          }
                        }

                        if (result1 === null) {
                          if (input.charCodeAt(pos) === 43) {
                            result1 = "+";
                            pos++;
                          } else {
                            result1 = null;

                            if (reportFailures === 0) {
                              matchFailed("\"+\"");
                            }
                          }
                        }
                      }
                    }
                  }
                }
              }
            }
          }
        }

        if (result1 !== null) {
          result0 = [];

          while (result1 !== null) {
            result0.push(result1);
            result1 = parse_unreserved();

            if (result1 === null) {
              result1 = parse_escaped();

              if (result1 === null) {
                if (input.charCodeAt(pos) === 36) {
                  result1 = "$";
                  pos++;
                } else {
                  result1 = null;

                  if (reportFailures === 0) {
                    matchFailed("\"$\"");
                  }
                }

                if (result1 === null) {
                  if (input.charCodeAt(pos) === 44) {
                    result1 = ",";
                    pos++;
                  } else {
                    result1 = null;

                    if (reportFailures === 0) {
                      matchFailed("\",\"");
                    }
                  }

                  if (result1 === null) {
                    if (input.charCodeAt(pos) === 59) {
                      result1 = ";";
                      pos++;
                    } else {
                      result1 = null;

                      if (reportFailures === 0) {
                        matchFailed("\";\"");
                      }
                    }

                    if (result1 === null) {
                      if (input.charCodeAt(pos) === 58) {
                        result1 = ":";
                        pos++;
                      } else {
                        result1 = null;

                        if (reportFailures === 0) {
                          matchFailed("\":\"");
                        }
                      }

                      if (result1 === null) {
                        if (input.charCodeAt(pos) === 64) {
                          result1 = "@";
                          pos++;
                        } else {
                          result1 = null;

                          if (reportFailures === 0) {
                            matchFailed("\"@\"");
                          }
                        }

                        if (result1 === null) {
                          if (input.charCodeAt(pos) === 38) {
                            result1 = "&";
                            pos++;
                          } else {
                            result1 = null;

                            if (reportFailures === 0) {
                              matchFailed("\"&\"");
                            }
                          }

                          if (result1 === null) {
                            if (input.charCodeAt(pos) === 61) {
                              result1 = "=";
                              pos++;
                            } else {
                              result1 = null;

                              if (reportFailures === 0) {
                                matchFailed("\"=\"");
                              }
                            }

                            if (result1 === null) {
                              if (input.charCodeAt(pos) === 43) {
                                result1 = "+";
                                pos++;
                              } else {
                                result1 = null;

                                if (reportFailures === 0) {
                                  matchFailed("\"+\"");
                                }
                              }
                            }
                          }
                        }
                      }
                    }
                  }
                }
              }
            }
          }
        } else {
          result0 = null;
        }

        return result0;
      }

      function parse_query() {
        var result0, result1;
        result0 = [];
        result1 = parse_uric();

        while (result1 !== null) {
          result0.push(result1);
          result1 = parse_uric();
        }

        return result0;
      }

      function parse_SIP_Version() {
        var result0, result1, result2, result3, result4, result5;
        var pos0, pos1;
        pos0 = pos;
        pos1 = pos;

        if (input.substr(pos, 3).toLowerCase() === "sip") {
          result0 = input.substr(pos, 3);
          pos += 3;
        } else {
          result0 = null;

          if (reportFailures === 0) {
            matchFailed("\"SIP\"");
          }
        }

        if (result0 !== null) {
          if (input.charCodeAt(pos) === 47) {
            result1 = "/";
            pos++;
          } else {
            result1 = null;

            if (reportFailures === 0) {
              matchFailed("\"/\"");
            }
          }

          if (result1 !== null) {
            result3 = parse_DIGIT();

            if (result3 !== null) {
              result2 = [];

              while (result3 !== null) {
                result2.push(result3);
                result3 = parse_DIGIT();
              }
            } else {
              result2 = null;
            }

            if (result2 !== null) {
              if (input.charCodeAt(pos) === 46) {
                result3 = ".";
                pos++;
              } else {
                result3 = null;

                if (reportFailures === 0) {
                  matchFailed("\".\"");
                }
              }

              if (result3 !== null) {
                result5 = parse_DIGIT();

                if (result5 !== null) {
                  result4 = [];

                  while (result5 !== null) {
                    result4.push(result5);
                    result5 = parse_DIGIT();
                  }
                } else {
                  result4 = null;
                }

                if (result4 !== null) {
                  result0 = [result0, result1, result2, result3, result4];
                } else {
                  result0 = null;
                  pos = pos1;
                }
              } else {
                result0 = null;
                pos = pos1;
              }
            } else {
              result0 = null;
              pos = pos1;
            }
          } else {
            result0 = null;
            pos = pos1;
          }
        } else {
          result0 = null;
          pos = pos1;
        }

        if (result0 !== null) {
          result0 = function (offset) {
            data.sip_version = input.substring(pos, offset);
          }(pos0);
        }

        if (result0 === null) {
          pos = pos0;
        }

        return result0;
      }

      function parse_INVITEm() {
        var result0;

        if (input.substr(pos, 6) === "INVITE") {
          result0 = "INVITE";
          pos += 6;
        } else {
          result0 = null;

          if (reportFailures === 0) {
            matchFailed("\"INVITE\"");
          }
        }

        return result0;
      }

      function parse_ACKm() {
        var result0;

        if (input.substr(pos, 3) === "ACK") {
          result0 = "ACK";
          pos += 3;
        } else {
          result0 = null;

          if (reportFailures === 0) {
            matchFailed("\"ACK\"");
          }
        }

        return result0;
      }

      function parse_OPTIONSm() {
        var result0;

        if (input.substr(pos, 7) === "OPTIONS") {
          result0 = "OPTIONS";
          pos += 7;
        } else {
          result0 = null;

          if (reportFailures === 0) {
            matchFailed("\"OPTIONS\"");
          }
        }

        return result0;
      }

      function parse_BYEm() {
        var result0;

        if (input.substr(pos, 3) === "BYE") {
          result0 = "BYE";
          pos += 3;
        } else {
          result0 = null;

          if (reportFailures === 0) {
            matchFailed("\"BYE\"");
          }
        }

        return result0;
      }

      function parse_CANCELm() {
        var result0;

        if (input.substr(pos, 6) === "CANCEL") {
          result0 = "CANCEL";
          pos += 6;
        } else {
          result0 = null;

          if (reportFailures === 0) {
            matchFailed("\"CANCEL\"");
          }
        }

        return result0;
      }

      function parse_REGISTERm() {
        var result0;

        if (input.substr(pos, 8) === "REGISTER") {
          result0 = "REGISTER";
          pos += 8;
        } else {
          result0 = null;

          if (reportFailures === 0) {
            matchFailed("\"REGISTER\"");
          }
        }

        return result0;
      }

      function parse_SUBSCRIBEm() {
        var result0;

        if (input.substr(pos, 9) === "SUBSCRIBE") {
          result0 = "SUBSCRIBE";
          pos += 9;
        } else {
          result0 = null;

          if (reportFailures === 0) {
            matchFailed("\"SUBSCRIBE\"");
          }
        }

        return result0;
      }

      function parse_NOTIFYm() {
        var result0;

        if (input.substr(pos, 6) === "NOTIFY") {
          result0 = "NOTIFY";
          pos += 6;
        } else {
          result0 = null;

          if (reportFailures === 0) {
            matchFailed("\"NOTIFY\"");
          }
        }

        return result0;
      }

      function parse_REFERm() {
        var result0;

        if (input.substr(pos, 5) === "REFER") {
          result0 = "REFER";
          pos += 5;
        } else {
          result0 = null;

          if (reportFailures === 0) {
            matchFailed("\"REFER\"");
          }
        }

        return result0;
      }

      function parse_Method() {
        var result0;
        var pos0;
        pos0 = pos;
        result0 = parse_INVITEm();

        if (result0 === null) {
          result0 = parse_ACKm();

          if (result0 === null) {
            result0 = parse_OPTIONSm();

            if (result0 === null) {
              result0 = parse_BYEm();

              if (result0 === null) {
                result0 = parse_CANCELm();

                if (result0 === null) {
                  result0 = parse_REGISTERm();

                  if (result0 === null) {
                    result0 = parse_SUBSCRIBEm();

                    if (result0 === null) {
                      result0 = parse_NOTIFYm();

                      if (result0 === null) {
                        result0 = parse_REFERm();

                        if (result0 === null) {
                          result0 = parse_token();
                        }
                      }
                    }
                  }
                }
              }
            }
          }
        }

        if (result0 !== null) {
          result0 = function (offset) {
            data.method = input.substring(pos, offset);
            return data.method;
          }(pos0);
        }

        if (result0 === null) {
          pos = pos0;
        }

        return result0;
      }

      function parse_Status_Line() {
        var result0, result1, result2, result3, result4;
        var pos0;
        pos0 = pos;
        result0 = parse_SIP_Version();

        if (result0 !== null) {
          result1 = parse_SP();

          if (result1 !== null) {
            result2 = parse_Status_Code();

            if (result2 !== null) {
              result3 = parse_SP();

              if (result3 !== null) {
                result4 = parse_Reason_Phrase();

                if (result4 !== null) {
                  result0 = [result0, result1, result2, result3, result4];
                } else {
                  result0 = null;
                  pos = pos0;
                }
              } else {
                result0 = null;
                pos = pos0;
              }
            } else {
              result0 = null;
              pos = pos0;
            }
          } else {
            result0 = null;
            pos = pos0;
          }
        } else {
          result0 = null;
          pos = pos0;
        }

        return result0;
      }

      function parse_Status_Code() {
        var result0;
        var pos0;
        pos0 = pos;
        result0 = parse_extension_code();

        if (result0 !== null) {
          result0 = function (offset, status_code) {
            data.status_code = parseInt(status_code.join(''));
          }(pos0, result0);
        }

        if (result0 === null) {
          pos = pos0;
        }

        return result0;
      }

      function parse_extension_code() {
        var result0, result1, result2;
        var pos0;
        pos0 = pos;
        result0 = parse_DIGIT();

        if (result0 !== null) {
          result1 = parse_DIGIT();

          if (result1 !== null) {
            result2 = parse_DIGIT();

            if (result2 !== null) {
              result0 = [result0, result1, result2];
            } else {
              result0 = null;
              pos = pos0;
            }
          } else {
            result0 = null;
            pos = pos0;
          }
        } else {
          result0 = null;
          pos = pos0;
        }

        return result0;
      }

      function parse_Reason_Phrase() {
        var result0, result1;
        var pos0;
        pos0 = pos;
        result0 = [];
        result1 = parse_reserved();

        if (result1 === null) {
          result1 = parse_unreserved();

          if (result1 === null) {
            result1 = parse_escaped();

            if (result1 === null) {
              result1 = parse_UTF8_NONASCII();

              if (result1 === null) {
                result1 = parse_UTF8_CONT();

                if (result1 === null) {
                  result1 = parse_SP();

                  if (result1 === null) {
                    result1 = parse_HTAB();
                  }
                }
              }
            }
          }
        }

        while (result1 !== null) {
          result0.push(result1);
          result1 = parse_reserved();

          if (result1 === null) {
            result1 = parse_unreserved();

            if (result1 === null) {
              result1 = parse_escaped();

              if (result1 === null) {
                result1 = parse_UTF8_NONASCII();

                if (result1 === null) {
                  result1 = parse_UTF8_CONT();

                  if (result1 === null) {
                    result1 = parse_SP();

                    if (result1 === null) {
                      result1 = parse_HTAB();
                    }
                  }
                }
              }
            }
          }
        }

        if (result0 !== null) {
          result0 = function (offset) {
            data.reason_phrase = input.substring(pos, offset);
          }(pos0);
        }

        if (result0 === null) {
          pos = pos0;
        }

        return result0;
      }

      function parse_Allow_Events() {
        var result0, result1, result2, result3;
        var pos0, pos1;
        pos0 = pos;
        result0 = parse_event_type();

        if (result0 !== null) {
          result1 = [];
          pos1 = pos;
          result2 = parse_COMMA();

          if (result2 !== null) {
            result3 = parse_event_type();

            if (result3 !== null) {
              result2 = [result2, result3];
            } else {
              result2 = null;
              pos = pos1;
            }
          } else {
            result2 = null;
            pos = pos1;
          }

          while (result2 !== null) {
            result1.push(result2);
            pos1 = pos;
            result2 = parse_COMMA();

            if (result2 !== null) {
              result3 = parse_event_type();

              if (result3 !== null) {
                result2 = [result2, result3];
              } else {
                result2 = null;
                pos = pos1;
              }
            } else {
              result2 = null;
              pos = pos1;
            }
          }

          if (result1 !== null) {
            result0 = [result0, result1];
          } else {
            result0 = null;
            pos = pos0;
          }
        } else {
          result0 = null;
          pos = pos0;
        }

        return result0;
      }

      function parse_Call_ID() {
        var result0, result1, result2;
        var pos0, pos1, pos2;
        pos0 = pos;
        pos1 = pos;
        result0 = parse_word();

        if (result0 !== null) {
          pos2 = pos;

          if (input.charCodeAt(pos) === 64) {
            result1 = "@";
            pos++;
          } else {
            result1 = null;

            if (reportFailures === 0) {
              matchFailed("\"@\"");
            }
          }

          if (result1 !== null) {
            result2 = parse_word();

            if (result2 !== null) {
              result1 = [result1, result2];
            } else {
              result1 = null;
              pos = pos2;
            }
          } else {
            result1 = null;
            pos = pos2;
          }

          result1 = result1 !== null ? result1 : "";

          if (result1 !== null) {
            result0 = [result0, result1];
          } else {
            result0 = null;
            pos = pos1;
          }
        } else {
          result0 = null;
          pos = pos1;
        }

        if (result0 !== null) {
          result0 = function (offset) {
            data = input.substring(pos, offset);
          }(pos0);
        }

        if (result0 === null) {
          pos = pos0;
        }

        return result0;
      }

      function parse_Contact() {
        var result0, result1, result2, result3;
        var pos0, pos1, pos2;
        pos0 = pos;
        result0 = parse_STAR();

        if (result0 === null) {
          pos1 = pos;
          result0 = parse_contact_param();

          if (result0 !== null) {
            result1 = [];
            pos2 = pos;
            result2 = parse_COMMA();

            if (result2 !== null) {
              result3 = parse_contact_param();

              if (result3 !== null) {
                result2 = [result2, result3];
              } else {
                result2 = null;
                pos = pos2;
              }
            } else {
              result2 = null;
              pos = pos2;
            }

            while (result2 !== null) {
              result1.push(result2);
              pos2 = pos;
              result2 = parse_COMMA();

              if (result2 !== null) {
                result3 = parse_contact_param();

                if (result3 !== null) {
                  result2 = [result2, result3];
                } else {
                  result2 = null;
                  pos = pos2;
                }
              } else {
                result2 = null;
                pos = pos2;
              }
            }

            if (result1 !== null) {
              result0 = [result0, result1];
            } else {
              result0 = null;
              pos = pos1;
            }
          } else {
            result0 = null;
            pos = pos1;
          }
        }

        if (result0 !== null) {
          result0 = function (offset) {
            var idx, length;
            length = data.multi_header.length;

            for (idx = 0; idx < length; idx++) {
              if (data.multi_header[idx].parsed === null) {
                data = null;
                break;
              }
            }

            if (data !== null) {
              data = data.multi_header;
            } else {
              data = -1;
            }
          }(pos0);
        }

        if (result0 === null) {
          pos = pos0;
        }

        return result0;
      }

      function parse_contact_param() {
        var result0, result1, result2, result3;
        var pos0, pos1, pos2;
        pos0 = pos;
        pos1 = pos;
        result0 = parse_SIP_URI_noparams();

        if (result0 === null) {
          result0 = parse_name_addr();
        }

        if (result0 !== null) {
          result1 = [];
          pos2 = pos;
          result2 = parse_SEMI();

          if (result2 !== null) {
            result3 = parse_contact_params();

            if (result3 !== null) {
              result2 = [result2, result3];
            } else {
              result2 = null;
              pos = pos2;
            }
          } else {
            result2 = null;
            pos = pos2;
          }

          while (result2 !== null) {
            result1.push(result2);
            pos2 = pos;
            result2 = parse_SEMI();

            if (result2 !== null) {
              result3 = parse_contact_params();

              if (result3 !== null) {
                result2 = [result2, result3];
              } else {
                result2 = null;
                pos = pos2;
              }
            } else {
              result2 = null;
              pos = pos2;
            }
          }

          if (result1 !== null) {
            result0 = [result0, result1];
          } else {
            result0 = null;
            pos = pos1;
          }
        } else {
          result0 = null;
          pos = pos1;
        }

        if (result0 !== null) {
          result0 = function (offset) {
            var header;
            if (!data.multi_header) data.multi_header = [];

            try {
              header = new NameAddrHeader(data.uri, data.display_name, data.params);
              delete data.uri;
              delete data.display_name;
              delete data.params;
            } catch (e) {
              header = null;
            }

            data.multi_header.push({
              'possition': pos,
              'offset': offset,
              'parsed': header
            });
          }(pos0);
        }

        if (result0 === null) {
          pos = pos0;
        }

        return result0;
      }

      function parse_name_addr() {
        var result0, result1, result2, result3;
        var pos0;
        pos0 = pos;
        result0 = parse_display_name();
        result0 = result0 !== null ? result0 : "";

        if (result0 !== null) {
          result1 = parse_LAQUOT();

          if (result1 !== null) {
            result2 = parse_SIP_URI();

            if (result2 !== null) {
              result3 = parse_RAQUOT();

              if (result3 !== null) {
                result0 = [result0, result1, result2, result3];
              } else {
                result0 = null;
                pos = pos0;
              }
            } else {
              result0 = null;
              pos = pos0;
            }
          } else {
            result0 = null;
            pos = pos0;
          }
        } else {
          result0 = null;
          pos = pos0;
        }

        return result0;
      }

      function parse_display_name() {
        var result0, result1, result2, result3;
        var pos0, pos1, pos2;
        pos0 = pos;
        pos1 = pos;
        result0 = parse_token();

        if (result0 !== null) {
          result1 = [];
          pos2 = pos;
          result2 = parse_LWS();

          if (result2 !== null) {
            result3 = parse_token();

            if (result3 !== null) {
              result2 = [result2, result3];
            } else {
              result2 = null;
              pos = pos2;
            }
          } else {
            result2 = null;
            pos = pos2;
          }

          while (result2 !== null) {
            result1.push(result2);
            pos2 = pos;
            result2 = parse_LWS();

            if (result2 !== null) {
              result3 = parse_token();

              if (result3 !== null) {
                result2 = [result2, result3];
              } else {
                result2 = null;
                pos = pos2;
              }
            } else {
              result2 = null;
              pos = pos2;
            }
          }

          if (result1 !== null) {
            result0 = [result0, result1];
          } else {
            result0 = null;
            pos = pos1;
          }
        } else {
          result0 = null;
          pos = pos1;
        }

        if (result0 === null) {
          result0 = parse_quoted_string();
        }

        if (result0 !== null) {
          result0 = function (offset, display_name) {
            display_name = input.substring(pos, offset).trim();

            if (display_name[0] === '\"') {
              display_name = display_name.substring(1, display_name.length - 1);
            }

            data.display_name = display_name;
          }(pos0, result0);
        }

        if (result0 === null) {
          pos = pos0;
        }

        return result0;
      }

      function parse_contact_params() {
        var result0;
        result0 = parse_c_p_q();

        if (result0 === null) {
          result0 = parse_c_p_expires();

          if (result0 === null) {
            result0 = parse_generic_param();
          }
        }

        return result0;
      }

      function parse_c_p_q() {
        var result0, result1, result2;
        var pos0, pos1;
        pos0 = pos;
        pos1 = pos;

        if (input.substr(pos, 1).toLowerCase() === "q") {
          result0 = input.substr(pos, 1);
          pos++;
        } else {
          result0 = null;

          if (reportFailures === 0) {
            matchFailed("\"q\"");
          }
        }

        if (result0 !== null) {
          result1 = parse_EQUAL();

          if (result1 !== null) {
            result2 = parse_qvalue();

            if (result2 !== null) {
              result0 = [result0, result1, result2];
            } else {
              result0 = null;
              pos = pos1;
            }
          } else {
            result0 = null;
            pos = pos1;
          }
        } else {
          result0 = null;
          pos = pos1;
        }

        if (result0 !== null) {
          result0 = function (offset, q) {
            if (!data.params) data.params = {};
            data.params['q'] = q;
          }(pos0, result0[2]);
        }

        if (result0 === null) {
          pos = pos0;
        }

        return result0;
      }

      function parse_c_p_expires() {
        var result0, result1, result2;
        var pos0, pos1;
        pos0 = pos;
        pos1 = pos;

        if (input.substr(pos, 7).toLowerCase() === "expires") {
          result0 = input.substr(pos, 7);
          pos += 7;
        } else {
          result0 = null;

          if (reportFailures === 0) {
            matchFailed("\"expires\"");
          }
        }

        if (result0 !== null) {
          result1 = parse_EQUAL();

          if (result1 !== null) {
            result2 = parse_delta_seconds();

            if (result2 !== null) {
              result0 = [result0, result1, result2];
            } else {
              result0 = null;
              pos = pos1;
            }
          } else {
            result0 = null;
            pos = pos1;
          }
        } else {
          result0 = null;
          pos = pos1;
        }

        if (result0 !== null) {
          result0 = function (offset, expires) {
            if (!data.params) data.params = {};
            data.params['expires'] = expires;
          }(pos0, result0[2]);
        }

        if (result0 === null) {
          pos = pos0;
        }

        return result0;
      }

      function parse_delta_seconds() {
        var result0, result1;
        var pos0;
        pos0 = pos;
        result1 = parse_DIGIT();

        if (result1 !== null) {
          result0 = [];

          while (result1 !== null) {
            result0.push(result1);
            result1 = parse_DIGIT();
          }
        } else {
          result0 = null;
        }

        if (result0 !== null) {
          result0 = function (offset, delta_seconds) {
            return parseInt(delta_seconds.join(''));
          }(pos0, result0);
        }

        if (result0 === null) {
          pos = pos0;
        }

        return result0;
      }

      function parse_qvalue() {
        var result0, result1, result2, result3, result4;
        var pos0, pos1, pos2;
        pos0 = pos;
        pos1 = pos;

        if (input.charCodeAt(pos) === 48) {
          result0 = "0";
          pos++;
        } else {
          result0 = null;

          if (reportFailures === 0) {
            matchFailed("\"0\"");
          }
        }

        if (result0 !== null) {
          pos2 = pos;

          if (input.charCodeAt(pos) === 46) {
            result1 = ".";
            pos++;
          } else {
            result1 = null;

            if (reportFailures === 0) {
              matchFailed("\".\"");
            }
          }

          if (result1 !== null) {
            result2 = parse_DIGIT();
            result2 = result2 !== null ? result2 : "";

            if (result2 !== null) {
              result3 = parse_DIGIT();
              result3 = result3 !== null ? result3 : "";

              if (result3 !== null) {
                result4 = parse_DIGIT();
                result4 = result4 !== null ? result4 : "";

                if (result4 !== null) {
                  result1 = [result1, result2, result3, result4];
                } else {
                  result1 = null;
                  pos = pos2;
                }
              } else {
                result1 = null;
                pos = pos2;
              }
            } else {
              result1 = null;
              pos = pos2;
            }
          } else {
            result1 = null;
            pos = pos2;
          }

          result1 = result1 !== null ? result1 : "";

          if (result1 !== null) {
            result0 = [result0, result1];
          } else {
            result0 = null;
            pos = pos1;
          }
        } else {
          result0 = null;
          pos = pos1;
        }

        if (result0 !== null) {
          result0 = function (offset) {
            return parseFloat(input.substring(pos, offset));
          }(pos0);
        }

        if (result0 === null) {
          pos = pos0;
        }

        return result0;
      }

      function parse_generic_param() {
        var result0, result1, result2;
        var pos0, pos1, pos2;
        pos0 = pos;
        pos1 = pos;
        result0 = parse_token();

        if (result0 !== null) {
          pos2 = pos;
          result1 = parse_EQUAL();

          if (result1 !== null) {
            result2 = parse_gen_value();

            if (result2 !== null) {
              result1 = [result1, result2];
            } else {
              result1 = null;
              pos = pos2;
            }
          } else {
            result1 = null;
            pos = pos2;
          }

          result1 = result1 !== null ? result1 : "";

          if (result1 !== null) {
            result0 = [result0, result1];
          } else {
            result0 = null;
            pos = pos1;
          }
        } else {
          result0 = null;
          pos = pos1;
        }

        if (result0 !== null) {
          result0 = function (offset, param, value) {
            if (!data.params) data.params = {};

            if (typeof value === 'undefined') {
              value = undefined;
            } else {
              value = value[1];
            }

            data.params[param.toLowerCase()] = value;
          }(pos0, result0[0], result0[1]);
        }

        if (result0 === null) {
          pos = pos0;
        }

        return result0;
      }

      function parse_gen_value() {
        var result0;
        result0 = parse_token();

        if (result0 === null) {
          result0 = parse_host();

          if (result0 === null) {
            result0 = parse_quoted_string();
          }
        }

        return result0;
      }

      function parse_Content_Disposition() {
        var result0, result1, result2, result3;
        var pos0, pos1;
        pos0 = pos;
        result0 = parse_disp_type();

        if (result0 !== null) {
          result1 = [];
          pos1 = pos;
          result2 = parse_SEMI();

          if (result2 !== null) {
            result3 = parse_disp_param();

            if (result3 !== null) {
              result2 = [result2, result3];
            } else {
              result2 = null;
              pos = pos1;
            }
          } else {
            result2 = null;
            pos = pos1;
          }

          while (result2 !== null) {
            result1.push(result2);
            pos1 = pos;
            result2 = parse_SEMI();

            if (result2 !== null) {
              result3 = parse_disp_param();

              if (result3 !== null) {
                result2 = [result2, result3];
              } else {
                result2 = null;
                pos = pos1;
              }
            } else {
              result2 = null;
              pos = pos1;
            }
          }

          if (result1 !== null) {
            result0 = [result0, result1];
          } else {
            result0 = null;
            pos = pos0;
          }
        } else {
          result0 = null;
          pos = pos0;
        }

        return result0;
      }

      function parse_disp_type() {
        var result0;

        if (input.substr(pos, 6).toLowerCase() === "render") {
          result0 = input.substr(pos, 6);
          pos += 6;
        } else {
          result0 = null;

          if (reportFailures === 0) {
            matchFailed("\"render\"");
          }
        }

        if (result0 === null) {
          if (input.substr(pos, 7).toLowerCase() === "session") {
            result0 = input.substr(pos, 7);
            pos += 7;
          } else {
            result0 = null;

            if (reportFailures === 0) {
              matchFailed("\"session\"");
            }
          }

          if (result0 === null) {
            if (input.substr(pos, 4).toLowerCase() === "icon") {
              result0 = input.substr(pos, 4);
              pos += 4;
            } else {
              result0 = null;

              if (reportFailures === 0) {
                matchFailed("\"icon\"");
              }
            }

            if (result0 === null) {
              if (input.substr(pos, 5).toLowerCase() === "alert") {
                result0 = input.substr(pos, 5);
                pos += 5;
              } else {
                result0 = null;

                if (reportFailures === 0) {
                  matchFailed("\"alert\"");
                }
              }

              if (result0 === null) {
                result0 = parse_token();
              }
            }
          }
        }

        return result0;
      }

      function parse_disp_param() {
        var result0;
        result0 = parse_handling_param();

        if (result0 === null) {
          result0 = parse_generic_param();
        }

        return result0;
      }

      function parse_handling_param() {
        var result0, result1, result2;
        var pos0;
        pos0 = pos;

        if (input.substr(pos, 8).toLowerCase() === "handling") {
          result0 = input.substr(pos, 8);
          pos += 8;
        } else {
          result0 = null;

          if (reportFailures === 0) {
            matchFailed("\"handling\"");
          }
        }

        if (result0 !== null) {
          result1 = parse_EQUAL();

          if (result1 !== null) {
            if (input.substr(pos, 8).toLowerCase() === "optional") {
              result2 = input.substr(pos, 8);
              pos += 8;
            } else {
              result2 = null;

              if (reportFailures === 0) {
                matchFailed("\"optional\"");
              }
            }

            if (result2 === null) {
              if (input.substr(pos, 8).toLowerCase() === "required") {
                result2 = input.substr(pos, 8);
                pos += 8;
              } else {
                result2 = null;

                if (reportFailures === 0) {
                  matchFailed("\"required\"");
                }
              }

              if (result2 === null) {
                result2 = parse_token();
              }
            }

            if (result2 !== null) {
              result0 = [result0, result1, result2];
            } else {
              result0 = null;
              pos = pos0;
            }
          } else {
            result0 = null;
            pos = pos0;
          }
        } else {
          result0 = null;
          pos = pos0;
        }

        return result0;
      }

      function parse_Content_Encoding() {
        var result0, result1, result2, result3;
        var pos0, pos1;
        pos0 = pos;
        result0 = parse_token();

        if (result0 !== null) {
          result1 = [];
          pos1 = pos;
          result2 = parse_COMMA();

          if (result2 !== null) {
            result3 = parse_token();

            if (result3 !== null) {
              result2 = [result2, result3];
            } else {
              result2 = null;
              pos = pos1;
            }
          } else {
            result2 = null;
            pos = pos1;
          }

          while (result2 !== null) {
            result1.push(result2);
            pos1 = pos;
            result2 = parse_COMMA();

            if (result2 !== null) {
              result3 = parse_token();

              if (result3 !== null) {
                result2 = [result2, result3];
              } else {
                result2 = null;
                pos = pos1;
              }
            } else {
              result2 = null;
              pos = pos1;
            }
          }

          if (result1 !== null) {
            result0 = [result0, result1];
          } else {
            result0 = null;
            pos = pos0;
          }
        } else {
          result0 = null;
          pos = pos0;
        }

        return result0;
      }

      function parse_Content_Length() {
        var result0, result1;
        var pos0;
        pos0 = pos;
        result1 = parse_DIGIT();

        if (result1 !== null) {
          result0 = [];

          while (result1 !== null) {
            result0.push(result1);
            result1 = parse_DIGIT();
          }
        } else {
          result0 = null;
        }

        if (result0 !== null) {
          result0 = function (offset, length) {
            data = parseInt(length.join(''));
          }(pos0, result0);
        }

        if (result0 === null) {
          pos = pos0;
        }

        return result0;
      }

      function parse_Content_Type() {
        var result0;
        var pos0;
        pos0 = pos;
        result0 = parse_media_type();

        if (result0 !== null) {
          result0 = function (offset) {
            data = input.substring(pos, offset);
          }(pos0);
        }

        if (result0 === null) {
          pos = pos0;
        }

        return result0;
      }

      function parse_media_type() {
        var result0, result1, result2, result3, result4, result5;
        var pos0, pos1;
        pos0 = pos;
        result0 = parse_m_type();

        if (result0 !== null) {
          result1 = parse_SLASH();

          if (result1 !== null) {
            result2 = parse_m_subtype();

            if (result2 !== null) {
              result3 = [];
              pos1 = pos;
              result4 = parse_SEMI();

              if (result4 !== null) {
                result5 = parse_m_parameter();

                if (result5 !== null) {
                  result4 = [result4, result5];
                } else {
                  result4 = null;
                  pos = pos1;
                }
              } else {
                result4 = null;
                pos = pos1;
              }

              while (result4 !== null) {
                result3.push(result4);
                pos1 = pos;
                result4 = parse_SEMI();

                if (result4 !== null) {
                  result5 = parse_m_parameter();

                  if (result5 !== null) {
                    result4 = [result4, result5];
                  } else {
                    result4 = null;
                    pos = pos1;
                  }
                } else {
                  result4 = null;
                  pos = pos1;
                }
              }

              if (result3 !== null) {
                result0 = [result0, result1, result2, result3];
              } else {
                result0 = null;
                pos = pos0;
              }
            } else {
              result0 = null;
              pos = pos0;
            }
          } else {
            result0 = null;
            pos = pos0;
          }
        } else {
          result0 = null;
          pos = pos0;
        }

        return result0;
      }

      function parse_m_type() {
        var result0;
        result0 = parse_discrete_type();

        if (result0 === null) {
          result0 = parse_composite_type();
        }

        return result0;
      }

      function parse_discrete_type() {
        var result0;

        if (input.substr(pos, 4).toLowerCase() === "text") {
          result0 = input.substr(pos, 4);
          pos += 4;
        } else {
          result0 = null;

          if (reportFailures === 0) {
            matchFailed("\"text\"");
          }
        }

        if (result0 === null) {
          if (input.substr(pos, 5).toLowerCase() === "image") {
            result0 = input.substr(pos, 5);
            pos += 5;
          } else {
            result0 = null;

            if (reportFailures === 0) {
              matchFailed("\"image\"");
            }
          }

          if (result0 === null) {
            if (input.substr(pos, 5).toLowerCase() === "audio") {
              result0 = input.substr(pos, 5);
              pos += 5;
            } else {
              result0 = null;

              if (reportFailures === 0) {
                matchFailed("\"audio\"");
              }
            }

            if (result0 === null) {
              if (input.substr(pos, 5).toLowerCase() === "video") {
                result0 = input.substr(pos, 5);
                pos += 5;
              } else {
                result0 = null;

                if (reportFailures === 0) {
                  matchFailed("\"video\"");
                }
              }

              if (result0 === null) {
                if (input.substr(pos, 11).toLowerCase() === "application") {
                  result0 = input.substr(pos, 11);
                  pos += 11;
                } else {
                  result0 = null;

                  if (reportFailures === 0) {
                    matchFailed("\"application\"");
                  }
                }

                if (result0 === null) {
                  result0 = parse_extension_token();
                }
              }
            }
          }
        }

        return result0;
      }

      function parse_composite_type() {
        var result0;

        if (input.substr(pos, 7).toLowerCase() === "message") {
          result0 = input.substr(pos, 7);
          pos += 7;
        } else {
          result0 = null;

          if (reportFailures === 0) {
            matchFailed("\"message\"");
          }
        }

        if (result0 === null) {
          if (input.substr(pos, 9).toLowerCase() === "multipart") {
            result0 = input.substr(pos, 9);
            pos += 9;
          } else {
            result0 = null;

            if (reportFailures === 0) {
              matchFailed("\"multipart\"");
            }
          }

          if (result0 === null) {
            result0 = parse_extension_token();
          }
        }

        return result0;
      }

      function parse_extension_token() {
        var result0;
        result0 = parse_token();

        if (result0 === null) {
          result0 = parse_x_token();
        }

        return result0;
      }

      function parse_x_token() {
        var result0, result1;
        var pos0;
        pos0 = pos;

        if (input.substr(pos, 2).toLowerCase() === "x-") {
          result0 = input.substr(pos, 2);
          pos += 2;
        } else {
          result0 = null;

          if (reportFailures === 0) {
            matchFailed("\"x-\"");
          }
        }

        if (result0 !== null) {
          result1 = parse_token();

          if (result1 !== null) {
            result0 = [result0, result1];
          } else {
            result0 = null;
            pos = pos0;
          }
        } else {
          result0 = null;
          pos = pos0;
        }

        return result0;
      }

      function parse_m_subtype() {
        var result0;
        result0 = parse_extension_token();

        if (result0 === null) {
          result0 = parse_token();
        }

        return result0;
      }

      function parse_m_parameter() {
        var result0, result1, result2;
        var pos0;
        pos0 = pos;
        result0 = parse_token();

        if (result0 !== null) {
          result1 = parse_EQUAL();

          if (result1 !== null) {
            result2 = parse_m_value();

            if (result2 !== null) {
              result0 = [result0, result1, result2];
            } else {
              result0 = null;
              pos = pos0;
            }
          } else {
            result0 = null;
            pos = pos0;
          }
        } else {
          result0 = null;
          pos = pos0;
        }

        return result0;
      }

      function parse_m_value() {
        var result0;
        result0 = parse_token();

        if (result0 === null) {
          result0 = parse_quoted_string();
        }

        return result0;
      }

      function parse_CSeq() {
        var result0, result1, result2;
        var pos0;
        pos0 = pos;
        result0 = parse_CSeq_value();

        if (result0 !== null) {
          result1 = parse_LWS();

          if (result1 !== null) {
            result2 = parse_Method();

            if (result2 !== null) {
              result0 = [result0, result1, result2];
            } else {
              result0 = null;
              pos = pos0;
            }
          } else {
            result0 = null;
            pos = pos0;
          }
        } else {
          result0 = null;
          pos = pos0;
        }

        return result0;
      }

      function parse_CSeq_value() {
        var result0, result1;
        var pos0;
        pos0 = pos;
        result1 = parse_DIGIT();

        if (result1 !== null) {
          result0 = [];

          while (result1 !== null) {
            result0.push(result1);
            result1 = parse_DIGIT();
          }
        } else {
          result0 = null;
        }

        if (result0 !== null) {
          result0 = function (offset, cseq_value) {
            data.value = parseInt(cseq_value.join(''));
          }(pos0, result0);
        }

        if (result0 === null) {
          pos = pos0;
        }

        return result0;
      }

      function parse_Expires() {
        var result0;
        var pos0;
        pos0 = pos;
        result0 = parse_delta_seconds();

        if (result0 !== null) {
          result0 = function (offset, expires) {
            data = expires;
          }(pos0, result0);
        }

        if (result0 === null) {
          pos = pos0;
        }

        return result0;
      }

      function parse_Event() {
        var result0, result1, result2, result3;
        var pos0, pos1, pos2;
        pos0 = pos;
        pos1 = pos;
        result0 = parse_event_type();

        if (result0 !== null) {
          result1 = [];
          pos2 = pos;
          result2 = parse_SEMI();

          if (result2 !== null) {
            result3 = parse_generic_param();

            if (result3 !== null) {
              result2 = [result2, result3];
            } else {
              result2 = null;
              pos = pos2;
            }
          } else {
            result2 = null;
            pos = pos2;
          }

          while (result2 !== null) {
            result1.push(result2);
            pos2 = pos;
            result2 = parse_SEMI();

            if (result2 !== null) {
              result3 = parse_generic_param();

              if (result3 !== null) {
                result2 = [result2, result3];
              } else {
                result2 = null;
                pos = pos2;
              }
            } else {
              result2 = null;
              pos = pos2;
            }
          }

          if (result1 !== null) {
            result0 = [result0, result1];
          } else {
            result0 = null;
            pos = pos1;
          }
        } else {
          result0 = null;
          pos = pos1;
        }

        if (result0 !== null) {
          result0 = function (offset, event_type) {
            data.event = event_type.join('').toLowerCase();
          }(pos0, result0[0]);
        }

        if (result0 === null) {
          pos = pos0;
        }

        return result0;
      }

      function parse_event_type() {
        var result0, result1, result2, result3;
        var pos0, pos1;
        pos0 = pos;
        result0 = parse_token_nodot();

        if (result0 !== null) {
          result1 = [];
          pos1 = pos;

          if (input.charCodeAt(pos) === 46) {
            result2 = ".";
            pos++;
          } else {
            result2 = null;

            if (reportFailures === 0) {
              matchFailed("\".\"");
            }
          }

          if (result2 !== null) {
            result3 = parse_token_nodot();

            if (result3 !== null) {
              result2 = [result2, result3];
            } else {
              result2 = null;
              pos = pos1;
            }
          } else {
            result2 = null;
            pos = pos1;
          }

          while (result2 !== null) {
            result1.push(result2);
            pos1 = pos;

            if (input.charCodeAt(pos) === 46) {
              result2 = ".";
              pos++;
            } else {
              result2 = null;

              if (reportFailures === 0) {
                matchFailed("\".\"");
              }
            }

            if (result2 !== null) {
              result3 = parse_token_nodot();

              if (result3 !== null) {
                result2 = [result2, result3];
              } else {
                result2 = null;
                pos = pos1;
              }
            } else {
              result2 = null;
              pos = pos1;
            }
          }

          if (result1 !== null) {
            result0 = [result0, result1];
          } else {
            result0 = null;
            pos = pos0;
          }
        } else {
          result0 = null;
          pos = pos0;
        }

        return result0;
      }

      function parse_From() {
        var result0, result1, result2, result3;
        var pos0, pos1, pos2;
        pos0 = pos;
        pos1 = pos;
        result0 = parse_SIP_URI_noparams();

        if (result0 === null) {
          result0 = parse_name_addr();
        }

        if (result0 !== null) {
          result1 = [];
          pos2 = pos;
          result2 = parse_SEMI();

          if (result2 !== null) {
            result3 = parse_from_param();

            if (result3 !== null) {
              result2 = [result2, result3];
            } else {
              result2 = null;
              pos = pos2;
            }
          } else {
            result2 = null;
            pos = pos2;
          }

          while (result2 !== null) {
            result1.push(result2);
            pos2 = pos;
            result2 = parse_SEMI();

            if (result2 !== null) {
              result3 = parse_from_param();

              if (result3 !== null) {
                result2 = [result2, result3];
              } else {
                result2 = null;
                pos = pos2;
              }
            } else {
              result2 = null;
              pos = pos2;
            }
          }

          if (result1 !== null) {
            result0 = [result0, result1];
          } else {
            result0 = null;
            pos = pos1;
          }
        } else {
          result0 = null;
          pos = pos1;
        }

        if (result0 !== null) {
          result0 = function (offset) {
            var tag = data.tag;

            try {
              data = new NameAddrHeader(data.uri, data.display_name, data.params);

              if (tag) {
                data.setParam('tag', tag);
              }
            } catch (e) {
              data = -1;
            }
          }(pos0);
        }

        if (result0 === null) {
          pos = pos0;
        }

        return result0;
      }

      function parse_from_param() {
        var result0;
        result0 = parse_tag_param();

        if (result0 === null) {
          result0 = parse_generic_param();
        }

        return result0;
      }

      function parse_tag_param() {
        var result0, result1, result2;
        var pos0, pos1;
        pos0 = pos;
        pos1 = pos;

        if (input.substr(pos, 3).toLowerCase() === "tag") {
          result0 = input.substr(pos, 3);
          pos += 3;
        } else {
          result0 = null;

          if (reportFailures === 0) {
            matchFailed("\"tag\"");
          }
        }

        if (result0 !== null) {
          result1 = parse_EQUAL();

          if (result1 !== null) {
            result2 = parse_token();

            if (result2 !== null) {
              result0 = [result0, result1, result2];
            } else {
              result0 = null;
              pos = pos1;
            }
          } else {
            result0 = null;
            pos = pos1;
          }
        } else {
          result0 = null;
          pos = pos1;
        }

        if (result0 !== null) {
          result0 = function (offset, tag) {
            data.tag = tag;
          }(pos0, result0[2]);
        }

        if (result0 === null) {
          pos = pos0;
        }

        return result0;
      }

      function parse_Max_Forwards() {
        var result0, result1;
        var pos0;
        pos0 = pos;
        result1 = parse_DIGIT();

        if (result1 !== null) {
          result0 = [];

          while (result1 !== null) {
            result0.push(result1);
            result1 = parse_DIGIT();
          }
        } else {
          result0 = null;
        }

        if (result0 !== null) {
          result0 = function (offset, forwards) {
            data = parseInt(forwards.join(''));
          }(pos0, result0);
        }

        if (result0 === null) {
          pos = pos0;
        }

        return result0;
      }

      function parse_Min_Expires() {
        var result0;
        var pos0;
        pos0 = pos;
        result0 = parse_delta_seconds();

        if (result0 !== null) {
          result0 = function (offset, min_expires) {
            data = min_expires;
          }(pos0, result0);
        }

        if (result0 === null) {
          pos = pos0;
        }

        return result0;
      }

      function parse_Name_Addr_Header() {
        var result0, result1, result2, result3, result4, result5, result6;
        var pos0, pos1, pos2;
        pos0 = pos;
        pos1 = pos;
        result0 = [];
        result1 = parse_display_name();

        while (result1 !== null) {
          result0.push(result1);
          result1 = parse_display_name();
        }

        if (result0 !== null) {
          result1 = parse_LAQUOT();

          if (result1 !== null) {
            result2 = parse_SIP_URI();

            if (result2 !== null) {
              result3 = parse_RAQUOT();

              if (result3 !== null) {
                result4 = [];
                pos2 = pos;
                result5 = parse_SEMI();

                if (result5 !== null) {
                  result6 = parse_generic_param();

                  if (result6 !== null) {
                    result5 = [result5, result6];
                  } else {
                    result5 = null;
                    pos = pos2;
                  }
                } else {
                  result5 = null;
                  pos = pos2;
                }

                while (result5 !== null) {
                  result4.push(result5);
                  pos2 = pos;
                  result5 = parse_SEMI();

                  if (result5 !== null) {
                    result6 = parse_generic_param();

                    if (result6 !== null) {
                      result5 = [result5, result6];
                    } else {
                      result5 = null;
                      pos = pos2;
                    }
                  } else {
                    result5 = null;
                    pos = pos2;
                  }
                }

                if (result4 !== null) {
                  result0 = [result0, result1, result2, result3, result4];
                } else {
                  result0 = null;
                  pos = pos1;
                }
              } else {
                result0 = null;
                pos = pos1;
              }
            } else {
              result0 = null;
              pos = pos1;
            }
          } else {
            result0 = null;
            pos = pos1;
          }
        } else {
          result0 = null;
          pos = pos1;
        }

        if (result0 !== null) {
          result0 = function (offset) {
            try {
              data = new NameAddrHeader(data.uri, data.display_name, data.params);
            } catch (e) {
              data = -1;
            }
          }(pos0);
        }

        if (result0 === null) {
          pos = pos0;
        }

        return result0;
      }

      function parse_Proxy_Authenticate() {
        var result0;
        result0 = parse_challenge();
        return result0;
      }

      function parse_challenge() {
        var result0, result1, result2, result3, result4, result5;
        var pos0, pos1;
        pos0 = pos;

        if (input.substr(pos, 6).toLowerCase() === "digest") {
          result0 = input.substr(pos, 6);
          pos += 6;
        } else {
          result0 = null;

          if (reportFailures === 0) {
            matchFailed("\"Digest\"");
          }
        }

        if (result0 !== null) {
          result1 = parse_LWS();

          if (result1 !== null) {
            result2 = parse_digest_cln();

            if (result2 !== null) {
              result3 = [];
              pos1 = pos;
              result4 = parse_COMMA();

              if (result4 !== null) {
                result5 = parse_digest_cln();

                if (result5 !== null) {
                  result4 = [result4, result5];
                } else {
                  result4 = null;
                  pos = pos1;
                }
              } else {
                result4 = null;
                pos = pos1;
              }

              while (result4 !== null) {
                result3.push(result4);
                pos1 = pos;
                result4 = parse_COMMA();

                if (result4 !== null) {
                  result5 = parse_digest_cln();

                  if (result5 !== null) {
                    result4 = [result4, result5];
                  } else {
                    result4 = null;
                    pos = pos1;
                  }
                } else {
                  result4 = null;
                  pos = pos1;
                }
              }

              if (result3 !== null) {
                result0 = [result0, result1, result2, result3];
              } else {
                result0 = null;
                pos = pos0;
              }
            } else {
              result0 = null;
              pos = pos0;
            }
          } else {
            result0 = null;
            pos = pos0;
          }
        } else {
          result0 = null;
          pos = pos0;
        }

        if (result0 === null) {
          result0 = parse_other_challenge();
        }

        return result0;
      }

      function parse_other_challenge() {
        var result0, result1, result2, result3, result4, result5;
        var pos0, pos1;
        pos0 = pos;
        result0 = parse_token();

        if (result0 !== null) {
          result1 = parse_LWS();

          if (result1 !== null) {
            result2 = parse_auth_param();

            if (result2 !== null) {
              result3 = [];
              pos1 = pos;
              result4 = parse_COMMA();

              if (result4 !== null) {
                result5 = parse_auth_param();

                if (result5 !== null) {
                  result4 = [result4, result5];
                } else {
                  result4 = null;
                  pos = pos1;
                }
              } else {
                result4 = null;
                pos = pos1;
              }

              while (result4 !== null) {
                result3.push(result4);
                pos1 = pos;
                result4 = parse_COMMA();

                if (result4 !== null) {
                  result5 = parse_auth_param();

                  if (result5 !== null) {
                    result4 = [result4, result5];
                  } else {
                    result4 = null;
                    pos = pos1;
                  }
                } else {
                  result4 = null;
                  pos = pos1;
                }
              }

              if (result3 !== null) {
                result0 = [result0, result1, result2, result3];
              } else {
                result0 = null;
                pos = pos0;
              }
            } else {
              result0 = null;
              pos = pos0;
            }
          } else {
            result0 = null;
            pos = pos0;
          }
        } else {
          result0 = null;
          pos = pos0;
        }

        return result0;
      }

      function parse_auth_param() {
        var result0, result1, result2;
        var pos0;
        pos0 = pos;
        result0 = parse_token();

        if (result0 !== null) {
          result1 = parse_EQUAL();

          if (result1 !== null) {
            result2 = parse_token();

            if (result2 === null) {
              result2 = parse_quoted_string();
            }

            if (result2 !== null) {
              result0 = [result0, result1, result2];
            } else {
              result0 = null;
              pos = pos0;
            }
          } else {
            result0 = null;
            pos = pos0;
          }
        } else {
          result0 = null;
          pos = pos0;
        }

        return result0;
      }

      function parse_digest_cln() {
        var result0;
        result0 = parse_realm();

        if (result0 === null) {
          result0 = parse_domain();

          if (result0 === null) {
            result0 = parse_nonce();

            if (result0 === null) {
              result0 = parse_opaque();

              if (result0 === null) {
                result0 = parse_stale();

                if (result0 === null) {
                  result0 = parse_algorithm();

                  if (result0 === null) {
                    result0 = parse_qop_options();

                    if (result0 === null) {
                      result0 = parse_auth_param();
                    }
                  }
                }
              }
            }
          }
        }

        return result0;
      }

      function parse_realm() {
        var result0, result1, result2;
        var pos0;
        pos0 = pos;

        if (input.substr(pos, 5).toLowerCase() === "realm") {
          result0 = input.substr(pos, 5);
          pos += 5;
        } else {
          result0 = null;

          if (reportFailures === 0) {
            matchFailed("\"realm\"");
          }
        }

        if (result0 !== null) {
          result1 = parse_EQUAL();

          if (result1 !== null) {
            result2 = parse_realm_value();

            if (result2 !== null) {
              result0 = [result0, result1, result2];
            } else {
              result0 = null;
              pos = pos0;
            }
          } else {
            result0 = null;
            pos = pos0;
          }
        } else {
          result0 = null;
          pos = pos0;
        }

        return result0;
      }

      function parse_realm_value() {
        var result0;
        var pos0;
        pos0 = pos;
        result0 = parse_quoted_string_clean();

        if (result0 !== null) {
          result0 = function (offset, realm) {
            data.realm = realm;
          }(pos0, result0);
        }

        if (result0 === null) {
          pos = pos0;
        }

        return result0;
      }

      function parse_domain() {
        var result0, result1, result2, result3, result4, result5, result6;
        var pos0, pos1;
        pos0 = pos;

        if (input.substr(pos, 6).toLowerCase() === "domain") {
          result0 = input.substr(pos, 6);
          pos += 6;
        } else {
          result0 = null;

          if (reportFailures === 0) {
            matchFailed("\"domain\"");
          }
        }

        if (result0 !== null) {
          result1 = parse_EQUAL();

          if (result1 !== null) {
            result2 = parse_LDQUOT();

            if (result2 !== null) {
              result3 = parse_URI();

              if (result3 !== null) {
                result4 = [];
                pos1 = pos;
                result6 = parse_SP();

                if (result6 !== null) {
                  result5 = [];

                  while (result6 !== null) {
                    result5.push(result6);
                    result6 = parse_SP();
                  }
                } else {
                  result5 = null;
                }

                if (result5 !== null) {
                  result6 = parse_URI();

                  if (result6 !== null) {
                    result5 = [result5, result6];
                  } else {
                    result5 = null;
                    pos = pos1;
                  }
                } else {
                  result5 = null;
                  pos = pos1;
                }

                while (result5 !== null) {
                  result4.push(result5);
                  pos1 = pos;
                  result6 = parse_SP();

                  if (result6 !== null) {
                    result5 = [];

                    while (result6 !== null) {
                      result5.push(result6);
                      result6 = parse_SP();
                    }
                  } else {
                    result5 = null;
                  }

                  if (result5 !== null) {
                    result6 = parse_URI();

                    if (result6 !== null) {
                      result5 = [result5, result6];
                    } else {
                      result5 = null;
                      pos = pos1;
                    }
                  } else {
                    result5 = null;
                    pos = pos1;
                  }
                }

                if (result4 !== null) {
                  result5 = parse_RDQUOT();

                  if (result5 !== null) {
                    result0 = [result0, result1, result2, result3, result4, result5];
                  } else {
                    result0 = null;
                    pos = pos0;
                  }
                } else {
                  result0 = null;
                  pos = pos0;
                }
              } else {
                result0 = null;
                pos = pos0;
              }
            } else {
              result0 = null;
              pos = pos0;
            }
          } else {
            result0 = null;
            pos = pos0;
          }
        } else {
          result0 = null;
          pos = pos0;
        }

        return result0;
      }

      function parse_URI() {
        var result0;
        result0 = parse_absoluteURI();

        if (result0 === null) {
          result0 = parse_abs_path();
        }

        return result0;
      }

      function parse_nonce() {
        var result0, result1, result2;
        var pos0;
        pos0 = pos;

        if (input.substr(pos, 5).toLowerCase() === "nonce") {
          result0 = input.substr(pos, 5);
          pos += 5;
        } else {
          result0 = null;

          if (reportFailures === 0) {
            matchFailed("\"nonce\"");
          }
        }

        if (result0 !== null) {
          result1 = parse_EQUAL();

          if (result1 !== null) {
            result2 = parse_nonce_value();

            if (result2 !== null) {
              result0 = [result0, result1, result2];
            } else {
              result0 = null;
              pos = pos0;
            }
          } else {
            result0 = null;
            pos = pos0;
          }
        } else {
          result0 = null;
          pos = pos0;
        }

        return result0;
      }

      function parse_nonce_value() {
        var result0;
        var pos0;
        pos0 = pos;
        result0 = parse_quoted_string_clean();

        if (result0 !== null) {
          result0 = function (offset, nonce) {
            data.nonce = nonce;
          }(pos0, result0);
        }

        if (result0 === null) {
          pos = pos0;
        }

        return result0;
      }

      function parse_opaque() {
        var result0, result1, result2;
        var pos0, pos1;
        pos0 = pos;
        pos1 = pos;

        if (input.substr(pos, 6).toLowerCase() === "opaque") {
          result0 = input.substr(pos, 6);
          pos += 6;
        } else {
          result0 = null;

          if (reportFailures === 0) {
            matchFailed("\"opaque\"");
          }
        }

        if (result0 !== null) {
          result1 = parse_EQUAL();

          if (result1 !== null) {
            result2 = parse_quoted_string_clean();

            if (result2 !== null) {
              result0 = [result0, result1, result2];
            } else {
              result0 = null;
              pos = pos1;
            }
          } else {
            result0 = null;
            pos = pos1;
          }
        } else {
          result0 = null;
          pos = pos1;
        }

        if (result0 !== null) {
          result0 = function (offset, opaque) {
            data.opaque = opaque;
          }(pos0, result0[2]);
        }

        if (result0 === null) {
          pos = pos0;
        }

        return result0;
      }

      function parse_stale() {
        var result0, result1, result2;
        var pos0, pos1;
        pos0 = pos;

        if (input.substr(pos, 5).toLowerCase() === "stale") {
          result0 = input.substr(pos, 5);
          pos += 5;
        } else {
          result0 = null;

          if (reportFailures === 0) {
            matchFailed("\"stale\"");
          }
        }

        if (result0 !== null) {
          result1 = parse_EQUAL();

          if (result1 !== null) {
            pos1 = pos;

            if (input.substr(pos, 4).toLowerCase() === "true") {
              result2 = input.substr(pos, 4);
              pos += 4;
            } else {
              result2 = null;

              if (reportFailures === 0) {
                matchFailed("\"true\"");
              }
            }

            if (result2 !== null) {
              result2 = function (offset) {
                data.stale = true;
              }(pos1);
            }

            if (result2 === null) {
              pos = pos1;
            }

            if (result2 === null) {
              pos1 = pos;

              if (input.substr(pos, 5).toLowerCase() === "false") {
                result2 = input.substr(pos, 5);
                pos += 5;
              } else {
                result2 = null;

                if (reportFailures === 0) {
                  matchFailed("\"false\"");
                }
              }

              if (result2 !== null) {
                result2 = function (offset) {
                  data.stale = false;
                }(pos1);
              }

              if (result2 === null) {
                pos = pos1;
              }
            }

            if (result2 !== null) {
              result0 = [result0, result1, result2];
            } else {
              result0 = null;
              pos = pos0;
            }
          } else {
            result0 = null;
            pos = pos0;
          }
        } else {
          result0 = null;
          pos = pos0;
        }

        return result0;
      }

      function parse_algorithm() {
        var result0, result1, result2;
        var pos0, pos1;
        pos0 = pos;
        pos1 = pos;

        if (input.substr(pos, 9).toLowerCase() === "algorithm") {
          result0 = input.substr(pos, 9);
          pos += 9;
        } else {
          result0 = null;

          if (reportFailures === 0) {
            matchFailed("\"algorithm\"");
          }
        }

        if (result0 !== null) {
          result1 = parse_EQUAL();

          if (result1 !== null) {
            if (input.substr(pos, 3).toLowerCase() === "md5") {
              result2 = input.substr(pos, 3);
              pos += 3;
            } else {
              result2 = null;

              if (reportFailures === 0) {
                matchFailed("\"MD5\"");
              }
            }

            if (result2 === null) {
              if (input.substr(pos, 8).toLowerCase() === "md5-sess") {
                result2 = input.substr(pos, 8);
                pos += 8;
              } else {
                result2 = null;

                if (reportFailures === 0) {
                  matchFailed("\"MD5-sess\"");
                }
              }

              if (result2 === null) {
                result2 = parse_token();
              }
            }

            if (result2 !== null) {
              result0 = [result0, result1, result2];
            } else {
              result0 = null;
              pos = pos1;
            }
          } else {
            result0 = null;
            pos = pos1;
          }
        } else {
          result0 = null;
          pos = pos1;
        }

        if (result0 !== null) {
          result0 = function (offset, algorithm) {
            data.algorithm = algorithm.toUpperCase();
          }(pos0, result0[2]);
        }

        if (result0 === null) {
          pos = pos0;
        }

        return result0;
      }

      function parse_qop_options() {
        var result0, result1, result2, result3, result4, result5, result6;
        var pos0, pos1, pos2;
        pos0 = pos;

        if (input.substr(pos, 3).toLowerCase() === "qop") {
          result0 = input.substr(pos, 3);
          pos += 3;
        } else {
          result0 = null;

          if (reportFailures === 0) {
            matchFailed("\"qop\"");
          }
        }

        if (result0 !== null) {
          result1 = parse_EQUAL();

          if (result1 !== null) {
            result2 = parse_LDQUOT();

            if (result2 !== null) {
              pos1 = pos;
              result3 = parse_qop_value();

              if (result3 !== null) {
                result4 = [];
                pos2 = pos;

                if (input.charCodeAt(pos) === 44) {
                  result5 = ",";
                  pos++;
                } else {
                  result5 = null;

                  if (reportFailures === 0) {
                    matchFailed("\",\"");
                  }
                }

                if (result5 !== null) {
                  result6 = parse_qop_value();

                  if (result6 !== null) {
                    result5 = [result5, result6];
                  } else {
                    result5 = null;
                    pos = pos2;
                  }
                } else {
                  result5 = null;
                  pos = pos2;
                }

                while (result5 !== null) {
                  result4.push(result5);
                  pos2 = pos;

                  if (input.charCodeAt(pos) === 44) {
                    result5 = ",";
                    pos++;
                  } else {
                    result5 = null;

                    if (reportFailures === 0) {
                      matchFailed("\",\"");
                    }
                  }

                  if (result5 !== null) {
                    result6 = parse_qop_value();

                    if (result6 !== null) {
                      result5 = [result5, result6];
                    } else {
                      result5 = null;
                      pos = pos2;
                    }
                  } else {
                    result5 = null;
                    pos = pos2;
                  }
                }

                if (result4 !== null) {
                  result3 = [result3, result4];
                } else {
                  result3 = null;
                  pos = pos1;
                }
              } else {
                result3 = null;
                pos = pos1;
              }

              if (result3 !== null) {
                result4 = parse_RDQUOT();

                if (result4 !== null) {
                  result0 = [result0, result1, result2, result3, result4];
                } else {
                  result0 = null;
                  pos = pos0;
                }
              } else {
                result0 = null;
                pos = pos0;
              }
            } else {
              result0 = null;
              pos = pos0;
            }
          } else {
            result0 = null;
            pos = pos0;
          }
        } else {
          result0 = null;
          pos = pos0;
        }

        return result0;
      }

      function parse_qop_value() {
        var result0;
        var pos0;
        pos0 = pos;

        if (input.substr(pos, 8).toLowerCase() === "auth-int") {
          result0 = input.substr(pos, 8);
          pos += 8;
        } else {
          result0 = null;

          if (reportFailures === 0) {
            matchFailed("\"auth-int\"");
          }
        }

        if (result0 === null) {
          if (input.substr(pos, 4).toLowerCase() === "auth") {
            result0 = input.substr(pos, 4);
            pos += 4;
          } else {
            result0 = null;

            if (reportFailures === 0) {
              matchFailed("\"auth\"");
            }
          }

          if (result0 === null) {
            result0 = parse_token();
          }
        }

        if (result0 !== null) {
          result0 = function (offset, qop_value) {
            data.qop || (data.qop = []);
            data.qop.push(qop_value.toLowerCase());
          }(pos0, result0);
        }

        if (result0 === null) {
          pos = pos0;
        }

        return result0;
      }

      function parse_Proxy_Require() {
        var result0, result1, result2, result3;
        var pos0, pos1;
        pos0 = pos;
        result0 = parse_token();

        if (result0 !== null) {
          result1 = [];
          pos1 = pos;
          result2 = parse_COMMA();

          if (result2 !== null) {
            result3 = parse_token();

            if (result3 !== null) {
              result2 = [result2, result3];
            } else {
              result2 = null;
              pos = pos1;
            }
          } else {
            result2 = null;
            pos = pos1;
          }

          while (result2 !== null) {
            result1.push(result2);
            pos1 = pos;
            result2 = parse_COMMA();

            if (result2 !== null) {
              result3 = parse_token();

              if (result3 !== null) {
                result2 = [result2, result3];
              } else {
                result2 = null;
                pos = pos1;
              }
            } else {
              result2 = null;
              pos = pos1;
            }
          }

          if (result1 !== null) {
            result0 = [result0, result1];
          } else {
            result0 = null;
            pos = pos0;
          }
        } else {
          result0 = null;
          pos = pos0;
        }

        return result0;
      }

      function parse_Record_Route() {
        var result0, result1, result2, result3;
        var pos0, pos1, pos2;
        pos0 = pos;
        pos1 = pos;
        result0 = parse_rec_route();

        if (result0 !== null) {
          result1 = [];
          pos2 = pos;
          result2 = parse_COMMA();

          if (result2 !== null) {
            result3 = parse_rec_route();

            if (result3 !== null) {
              result2 = [result2, result3];
            } else {
              result2 = null;
              pos = pos2;
            }
          } else {
            result2 = null;
            pos = pos2;
          }

          while (result2 !== null) {
            result1.push(result2);
            pos2 = pos;
            result2 = parse_COMMA();

            if (result2 !== null) {
              result3 = parse_rec_route();

              if (result3 !== null) {
                result2 = [result2, result3];
              } else {
                result2 = null;
                pos = pos2;
              }
            } else {
              result2 = null;
              pos = pos2;
            }
          }

          if (result1 !== null) {
            result0 = [result0, result1];
          } else {
            result0 = null;
            pos = pos1;
          }
        } else {
          result0 = null;
          pos = pos1;
        }

        if (result0 !== null) {
          result0 = function (offset) {
            var idx, length;
            length = data.multi_header.length;

            for (idx = 0; idx < length; idx++) {
              if (data.multi_header[idx].parsed === null) {
                data = null;
                break;
              }
            }

            if (data !== null) {
              data = data.multi_header;
            } else {
              data = -1;
            }
          }(pos0);
        }

        if (result0 === null) {
          pos = pos0;
        }

        return result0;
      }

      function parse_rec_route() {
        var result0, result1, result2, result3;
        var pos0, pos1, pos2;
        pos0 = pos;
        pos1 = pos;
        result0 = parse_name_addr();

        if (result0 !== null) {
          result1 = [];
          pos2 = pos;
          result2 = parse_SEMI();

          if (result2 !== null) {
            result3 = parse_generic_param();

            if (result3 !== null) {
              result2 = [result2, result3];
            } else {
              result2 = null;
              pos = pos2;
            }
          } else {
            result2 = null;
            pos = pos2;
          }

          while (result2 !== null) {
            result1.push(result2);
            pos2 = pos;
            result2 = parse_SEMI();

            if (result2 !== null) {
              result3 = parse_generic_param();

              if (result3 !== null) {
                result2 = [result2, result3];
              } else {
                result2 = null;
                pos = pos2;
              }
            } else {
              result2 = null;
              pos = pos2;
            }
          }

          if (result1 !== null) {
            result0 = [result0, result1];
          } else {
            result0 = null;
            pos = pos1;
          }
        } else {
          result0 = null;
          pos = pos1;
        }

        if (result0 !== null) {
          result0 = function (offset) {
            var header;
            if (!data.multi_header) data.multi_header = [];

            try {
              header = new NameAddrHeader(data.uri, data.display_name, data.params);
              delete data.uri;
              delete data.display_name;
              delete data.params;
            } catch (e) {
              header = null;
            }

            data.multi_header.push({
              'possition': pos,
              'offset': offset,
              'parsed': header
            });
          }(pos0);
        }

        if (result0 === null) {
          pos = pos0;
        }

        return result0;
      }

      function parse_Reason() {
        var result0, result1, result2, result3;
        var pos0, pos1, pos2;
        pos0 = pos;
        pos1 = pos;

        if (input.substr(pos, 3).toLowerCase() === "sip") {
          result0 = input.substr(pos, 3);
          pos += 3;
        } else {
          result0 = null;

          if (reportFailures === 0) {
            matchFailed("\"SIP\"");
          }
        }

        if (result0 === null) {
          result0 = parse_token();
        }

        if (result0 !== null) {
          result1 = [];
          pos2 = pos;
          result2 = parse_SEMI();

          if (result2 !== null) {
            result3 = parse_reason_param();

            if (result3 !== null) {
              result2 = [result2, result3];
            } else {
              result2 = null;
              pos = pos2;
            }
          } else {
            result2 = null;
            pos = pos2;
          }

          while (result2 !== null) {
            result1.push(result2);
            pos2 = pos;
            result2 = parse_SEMI();

            if (result2 !== null) {
              result3 = parse_reason_param();

              if (result3 !== null) {
                result2 = [result2, result3];
              } else {
                result2 = null;
                pos = pos2;
              }
            } else {
              result2 = null;
              pos = pos2;
            }
          }

          if (result1 !== null) {
            result0 = [result0, result1];
          } else {
            result0 = null;
            pos = pos1;
          }
        } else {
          result0 = null;
          pos = pos1;
        }

        if (result0 !== null) {
          result0 = function (offset, protocol) {
            data.protocol = protocol.toLowerCase();
            if (!data.params) data.params = {};

            if (data.params.text && data.params.text[0] === '"') {
              var text = data.params.text;
              data.text = text.substring(1, text.length - 1);
              delete data.params.text;
            }
          }(pos0, result0[0]);
        }

        if (result0 === null) {
          pos = pos0;
        }

        return result0;
      }

      function parse_reason_param() {
        var result0;
        result0 = parse_reason_cause();

        if (result0 === null) {
          result0 = parse_generic_param();
        }

        return result0;
      }

      function parse_reason_cause() {
        var result0, result1, result2, result3;
        var pos0, pos1;
        pos0 = pos;
        pos1 = pos;

        if (input.substr(pos, 5).toLowerCase() === "cause") {
          result0 = input.substr(pos, 5);
          pos += 5;
        } else {
          result0 = null;

          if (reportFailures === 0) {
            matchFailed("\"cause\"");
          }
        }

        if (result0 !== null) {
          result1 = parse_EQUAL();

          if (result1 !== null) {
            result3 = parse_DIGIT();

            if (result3 !== null) {
              result2 = [];

              while (result3 !== null) {
                result2.push(result3);
                result3 = parse_DIGIT();
              }
            } else {
              result2 = null;
            }

            if (result2 !== null) {
              result0 = [result0, result1, result2];
            } else {
              result0 = null;
              pos = pos1;
            }
          } else {
            result0 = null;
            pos = pos1;
          }
        } else {
          result0 = null;
          pos = pos1;
        }

        if (result0 !== null) {
          result0 = function (offset, cause) {
            data.cause = parseInt(cause.join(''));
          }(pos0, result0[2]);
        }

        if (result0 === null) {
          pos = pos0;
        }

        return result0;
      }

      function parse_Require() {
        var result0, result1, result2, result3;
        var pos0, pos1;
        pos0 = pos;
        result0 = parse_token();

        if (result0 !== null) {
          result1 = [];
          pos1 = pos;
          result2 = parse_COMMA();

          if (result2 !== null) {
            result3 = parse_token();

            if (result3 !== null) {
              result2 = [result2, result3];
            } else {
              result2 = null;
              pos = pos1;
            }
          } else {
            result2 = null;
            pos = pos1;
          }

          while (result2 !== null) {
            result1.push(result2);
            pos1 = pos;
            result2 = parse_COMMA();

            if (result2 !== null) {
              result3 = parse_token();

              if (result3 !== null) {
                result2 = [result2, result3];
              } else {
                result2 = null;
                pos = pos1;
              }
            } else {
              result2 = null;
              pos = pos1;
            }
          }

          if (result1 !== null) {
            result0 = [result0, result1];
          } else {
            result0 = null;
            pos = pos0;
          }
        } else {
          result0 = null;
          pos = pos0;
        }

        return result0;
      }

      function parse_Route() {
        var result0, result1, result2, result3;
        var pos0, pos1;
        pos0 = pos;
        result0 = parse_route_param();

        if (result0 !== null) {
          result1 = [];
          pos1 = pos;
          result2 = parse_COMMA();

          if (result2 !== null) {
            result3 = parse_route_param();

            if (result3 !== null) {
              result2 = [result2, result3];
            } else {
              result2 = null;
              pos = pos1;
            }
          } else {
            result2 = null;
            pos = pos1;
          }

          while (result2 !== null) {
            result1.push(result2);
            pos1 = pos;
            result2 = parse_COMMA();

            if (result2 !== null) {
              result3 = parse_route_param();

              if (result3 !== null) {
                result2 = [result2, result3];
              } else {
                result2 = null;
                pos = pos1;
              }
            } else {
              result2 = null;
              pos = pos1;
            }
          }

          if (result1 !== null) {
            result0 = [result0, result1];
          } else {
            result0 = null;
            pos = pos0;
          }
        } else {
          result0 = null;
          pos = pos0;
        }

        return result0;
      }

      function parse_route_param() {
        var result0, result1, result2, result3;
        var pos0, pos1;
        pos0 = pos;
        result0 = parse_name_addr();

        if (result0 !== null) {
          result1 = [];
          pos1 = pos;
          result2 = parse_SEMI();

          if (result2 !== null) {
            result3 = parse_generic_param();

            if (result3 !== null) {
              result2 = [result2, result3];
            } else {
              result2 = null;
              pos = pos1;
            }
          } else {
            result2 = null;
            pos = pos1;
          }

          while (result2 !== null) {
            result1.push(result2);
            pos1 = pos;
            result2 = parse_SEMI();

            if (result2 !== null) {
              result3 = parse_generic_param();

              if (result3 !== null) {
                result2 = [result2, result3];
              } else {
                result2 = null;
                pos = pos1;
              }
            } else {
              result2 = null;
              pos = pos1;
            }
          }

          if (result1 !== null) {
            result0 = [result0, result1];
          } else {
            result0 = null;
            pos = pos0;
          }
        } else {
          result0 = null;
          pos = pos0;
        }

        return result0;
      }

      function parse_Subscription_State() {
        var result0, result1, result2, result3;
        var pos0, pos1;
        pos0 = pos;
        result0 = parse_substate_value();

        if (result0 !== null) {
          result1 = [];
          pos1 = pos;
          result2 = parse_SEMI();

          if (result2 !== null) {
            result3 = parse_subexp_params();

            if (result3 !== null) {
              result2 = [result2, result3];
            } else {
              result2 = null;
              pos = pos1;
            }
          } else {
            result2 = null;
            pos = pos1;
          }

          while (result2 !== null) {
            result1.push(result2);
            pos1 = pos;
            result2 = parse_SEMI();

            if (result2 !== null) {
              result3 = parse_subexp_params();

              if (result3 !== null) {
                result2 = [result2, result3];
              } else {
                result2 = null;
                pos = pos1;
              }
            } else {
              result2 = null;
              pos = pos1;
            }
          }

          if (result1 !== null) {
            result0 = [result0, result1];
          } else {
            result0 = null;
            pos = pos0;
          }
        } else {
          result0 = null;
          pos = pos0;
        }

        return result0;
      }

      function parse_substate_value() {
        var result0;
        var pos0;
        pos0 = pos;

        if (input.substr(pos, 6).toLowerCase() === "active") {
          result0 = input.substr(pos, 6);
          pos += 6;
        } else {
          result0 = null;

          if (reportFailures === 0) {
            matchFailed("\"active\"");
          }
        }

        if (result0 === null) {
          if (input.substr(pos, 7).toLowerCase() === "pending") {
            result0 = input.substr(pos, 7);
            pos += 7;
          } else {
            result0 = null;

            if (reportFailures === 0) {
              matchFailed("\"pending\"");
            }
          }

          if (result0 === null) {
            if (input.substr(pos, 10).toLowerCase() === "terminated") {
              result0 = input.substr(pos, 10);
              pos += 10;
            } else {
              result0 = null;

              if (reportFailures === 0) {
                matchFailed("\"terminated\"");
              }
            }

            if (result0 === null) {
              result0 = parse_token();
            }
          }
        }

        if (result0 !== null) {
          result0 = function (offset) {
            data.state = input.substring(pos, offset);
          }(pos0);
        }

        if (result0 === null) {
          pos = pos0;
        }

        return result0;
      }

      function parse_subexp_params() {
        var result0, result1, result2;
        var pos0, pos1;
        pos0 = pos;
        pos1 = pos;

        if (input.substr(pos, 6).toLowerCase() === "reason") {
          result0 = input.substr(pos, 6);
          pos += 6;
        } else {
          result0 = null;

          if (reportFailures === 0) {
            matchFailed("\"reason\"");
          }
        }

        if (result0 !== null) {
          result1 = parse_EQUAL();

          if (result1 !== null) {
            result2 = parse_event_reason_value();

            if (result2 !== null) {
              result0 = [result0, result1, result2];
            } else {
              result0 = null;
              pos = pos1;
            }
          } else {
            result0 = null;
            pos = pos1;
          }
        } else {
          result0 = null;
          pos = pos1;
        }

        if (result0 !== null) {
          result0 = function (offset, reason) {
            if (typeof reason !== 'undefined') data.reason = reason;
          }(pos0, result0[2]);
        }

        if (result0 === null) {
          pos = pos0;
        }

        if (result0 === null) {
          pos0 = pos;
          pos1 = pos;

          if (input.substr(pos, 7).toLowerCase() === "expires") {
            result0 = input.substr(pos, 7);
            pos += 7;
          } else {
            result0 = null;

            if (reportFailures === 0) {
              matchFailed("\"expires\"");
            }
          }

          if (result0 !== null) {
            result1 = parse_EQUAL();

            if (result1 !== null) {
              result2 = parse_delta_seconds();

              if (result2 !== null) {
                result0 = [result0, result1, result2];
              } else {
                result0 = null;
                pos = pos1;
              }
            } else {
              result0 = null;
              pos = pos1;
            }
          } else {
            result0 = null;
            pos = pos1;
          }

          if (result0 !== null) {
            result0 = function (offset, expires) {
              if (typeof expires !== 'undefined') data.expires = expires;
            }(pos0, result0[2]);
          }

          if (result0 === null) {
            pos = pos0;
          }

          if (result0 === null) {
            pos0 = pos;
            pos1 = pos;

            if (input.substr(pos, 11).toLowerCase() === "retry_after") {
              result0 = input.substr(pos, 11);
              pos += 11;
            } else {
              result0 = null;

              if (reportFailures === 0) {
                matchFailed("\"retry_after\"");
              }
            }

            if (result0 !== null) {
              result1 = parse_EQUAL();

              if (result1 !== null) {
                result2 = parse_delta_seconds();

                if (result2 !== null) {
                  result0 = [result0, result1, result2];
                } else {
                  result0 = null;
                  pos = pos1;
                }
              } else {
                result0 = null;
                pos = pos1;
              }
            } else {
              result0 = null;
              pos = pos1;
            }

            if (result0 !== null) {
              result0 = function (offset, retry_after) {
                if (typeof retry_after !== 'undefined') data.retry_after = retry_after;
              }(pos0, result0[2]);
            }

            if (result0 === null) {
              pos = pos0;
            }

            if (result0 === null) {
              result0 = parse_generic_param();
            }
          }
        }

        return result0;
      }

      function parse_event_reason_value() {
        var result0;

        if (input.substr(pos, 11).toLowerCase() === "deactivated") {
          result0 = input.substr(pos, 11);
          pos += 11;
        } else {
          result0 = null;

          if (reportFailures === 0) {
            matchFailed("\"deactivated\"");
          }
        }

        if (result0 === null) {
          if (input.substr(pos, 9).toLowerCase() === "probation") {
            result0 = input.substr(pos, 9);
            pos += 9;
          } else {
            result0 = null;

            if (reportFailures === 0) {
              matchFailed("\"probation\"");
            }
          }

          if (result0 === null) {
            if (input.substr(pos, 8).toLowerCase() === "rejected") {
              result0 = input.substr(pos, 8);
              pos += 8;
            } else {
              result0 = null;

              if (reportFailures === 0) {
                matchFailed("\"rejected\"");
              }
            }

            if (result0 === null) {
              if (input.substr(pos, 7).toLowerCase() === "timeout") {
                result0 = input.substr(pos, 7);
                pos += 7;
              } else {
                result0 = null;

                if (reportFailures === 0) {
                  matchFailed("\"timeout\"");
                }
              }

              if (result0 === null) {
                if (input.substr(pos, 6).toLowerCase() === "giveup") {
                  result0 = input.substr(pos, 6);
                  pos += 6;
                } else {
                  result0 = null;

                  if (reportFailures === 0) {
                    matchFailed("\"giveup\"");
                  }
                }

                if (result0 === null) {
                  if (input.substr(pos, 10).toLowerCase() === "noresource") {
                    result0 = input.substr(pos, 10);
                    pos += 10;
                  } else {
                    result0 = null;

                    if (reportFailures === 0) {
                      matchFailed("\"noresource\"");
                    }
                  }

                  if (result0 === null) {
                    if (input.substr(pos, 9).toLowerCase() === "invariant") {
                      result0 = input.substr(pos, 9);
                      pos += 9;
                    } else {
                      result0 = null;

                      if (reportFailures === 0) {
                        matchFailed("\"invariant\"");
                      }
                    }

                    if (result0 === null) {
                      result0 = parse_token();
                    }
                  }
                }
              }
            }
          }
        }

        return result0;
      }

      function parse_Subject() {
        var result0;
        result0 = parse_TEXT_UTF8_TRIM();
        result0 = result0 !== null ? result0 : "";
        return result0;
      }

      function parse_Supported() {
        var result0, result1, result2, result3;
        var pos0, pos1;
        pos0 = pos;
        result0 = parse_token();

        if (result0 !== null) {
          result1 = [];
          pos1 = pos;
          result2 = parse_COMMA();

          if (result2 !== null) {
            result3 = parse_token();

            if (result3 !== null) {
              result2 = [result2, result3];
            } else {
              result2 = null;
              pos = pos1;
            }
          } else {
            result2 = null;
            pos = pos1;
          }

          while (result2 !== null) {
            result1.push(result2);
            pos1 = pos;
            result2 = parse_COMMA();

            if (result2 !== null) {
              result3 = parse_token();

              if (result3 !== null) {
                result2 = [result2, result3];
              } else {
                result2 = null;
                pos = pos1;
              }
            } else {
              result2 = null;
              pos = pos1;
            }
          }

          if (result1 !== null) {
            result0 = [result0, result1];
          } else {
            result0 = null;
            pos = pos0;
          }
        } else {
          result0 = null;
          pos = pos0;
        }

        result0 = result0 !== null ? result0 : "";
        return result0;
      }

      function parse_To() {
        var result0, result1, result2, result3;
        var pos0, pos1, pos2;
        pos0 = pos;
        pos1 = pos;
        result0 = parse_SIP_URI_noparams();

        if (result0 === null) {
          result0 = parse_name_addr();
        }

        if (result0 !== null) {
          result1 = [];
          pos2 = pos;
          result2 = parse_SEMI();

          if (result2 !== null) {
            result3 = parse_to_param();

            if (result3 !== null) {
              result2 = [result2, result3];
            } else {
              result2 = null;
              pos = pos2;
            }
          } else {
            result2 = null;
            pos = pos2;
          }

          while (result2 !== null) {
            result1.push(result2);
            pos2 = pos;
            result2 = parse_SEMI();

            if (result2 !== null) {
              result3 = parse_to_param();

              if (result3 !== null) {
                result2 = [result2, result3];
              } else {
                result2 = null;
                pos = pos2;
              }
            } else {
              result2 = null;
              pos = pos2;
            }
          }

          if (result1 !== null) {
            result0 = [result0, result1];
          } else {
            result0 = null;
            pos = pos1;
          }
        } else {
          result0 = null;
          pos = pos1;
        }

        if (result0 !== null) {
          result0 = function (offset) {
            var tag = data.tag;

            try {
              data = new NameAddrHeader(data.uri, data.display_name, data.params);

              if (tag) {
                data.setParam('tag', tag);
              }
            } catch (e) {
              data = -1;
            }
          }(pos0);
        }

        if (result0 === null) {
          pos = pos0;
        }

        return result0;
      }

      function parse_to_param() {
        var result0;
        result0 = parse_tag_param();

        if (result0 === null) {
          result0 = parse_generic_param();
        }

        return result0;
      }

      function parse_Via() {
        var result0, result1, result2, result3;
        var pos0, pos1;
        pos0 = pos;
        result0 = parse_via_param();

        if (result0 !== null) {
          result1 = [];
          pos1 = pos;
          result2 = parse_COMMA();

          if (result2 !== null) {
            result3 = parse_via_param();

            if (result3 !== null) {
              result2 = [result2, result3];
            } else {
              result2 = null;
              pos = pos1;
            }
          } else {
            result2 = null;
            pos = pos1;
          }

          while (result2 !== null) {
            result1.push(result2);
            pos1 = pos;
            result2 = parse_COMMA();

            if (result2 !== null) {
              result3 = parse_via_param();

              if (result3 !== null) {
                result2 = [result2, result3];
              } else {
                result2 = null;
                pos = pos1;
              }
            } else {
              result2 = null;
              pos = pos1;
            }
          }

          if (result1 !== null) {
            result0 = [result0, result1];
          } else {
            result0 = null;
            pos = pos0;
          }
        } else {
          result0 = null;
          pos = pos0;
        }

        return result0;
      }

      function parse_via_param() {
        var result0, result1, result2, result3, result4, result5;
        var pos0, pos1;
        pos0 = pos;
        result0 = parse_sent_protocol();

        if (result0 !== null) {
          result1 = parse_LWS();

          if (result1 !== null) {
            result2 = parse_sent_by();

            if (result2 !== null) {
              result3 = [];
              pos1 = pos;
              result4 = parse_SEMI();

              if (result4 !== null) {
                result5 = parse_via_params();

                if (result5 !== null) {
                  result4 = [result4, result5];
                } else {
                  result4 = null;
                  pos = pos1;
                }
              } else {
                result4 = null;
                pos = pos1;
              }

              while (result4 !== null) {
                result3.push(result4);
                pos1 = pos;
                result4 = parse_SEMI();

                if (result4 !== null) {
                  result5 = parse_via_params();

                  if (result5 !== null) {
                    result4 = [result4, result5];
                  } else {
                    result4 = null;
                    pos = pos1;
                  }
                } else {
                  result4 = null;
                  pos = pos1;
                }
              }

              if (result3 !== null) {
                result0 = [result0, result1, result2, result3];
              } else {
                result0 = null;
                pos = pos0;
              }
            } else {
              result0 = null;
              pos = pos0;
            }
          } else {
            result0 = null;
            pos = pos0;
          }
        } else {
          result0 = null;
          pos = pos0;
        }

        return result0;
      }

      function parse_via_params() {
        var result0;
        result0 = parse_via_ttl();

        if (result0 === null) {
          result0 = parse_via_maddr();

          if (result0 === null) {
            result0 = parse_via_received();

            if (result0 === null) {
              result0 = parse_via_branch();

              if (result0 === null) {
                result0 = parse_response_port();

                if (result0 === null) {
                  result0 = parse_generic_param();
                }
              }
            }
          }
        }

        return result0;
      }

      function parse_via_ttl() {
        var result0, result1, result2;
        var pos0, pos1;
        pos0 = pos;
        pos1 = pos;

        if (input.substr(pos, 3).toLowerCase() === "ttl") {
          result0 = input.substr(pos, 3);
          pos += 3;
        } else {
          result0 = null;

          if (reportFailures === 0) {
            matchFailed("\"ttl\"");
          }
        }

        if (result0 !== null) {
          result1 = parse_EQUAL();

          if (result1 !== null) {
            result2 = parse_ttl();

            if (result2 !== null) {
              result0 = [result0, result1, result2];
            } else {
              result0 = null;
              pos = pos1;
            }
          } else {
            result0 = null;
            pos = pos1;
          }
        } else {
          result0 = null;
          pos = pos1;
        }

        if (result0 !== null) {
          result0 = function (offset, via_ttl_value) {
            data.ttl = via_ttl_value;
          }(pos0, result0[2]);
        }

        if (result0 === null) {
          pos = pos0;
        }

        return result0;
      }

      function parse_via_maddr() {
        var result0, result1, result2;
        var pos0, pos1;
        pos0 = pos;
        pos1 = pos;

        if (input.substr(pos, 5).toLowerCase() === "maddr") {
          result0 = input.substr(pos, 5);
          pos += 5;
        } else {
          result0 = null;

          if (reportFailures === 0) {
            matchFailed("\"maddr\"");
          }
        }

        if (result0 !== null) {
          result1 = parse_EQUAL();

          if (result1 !== null) {
            result2 = parse_host();

            if (result2 !== null) {
              result0 = [result0, result1, result2];
            } else {
              result0 = null;
              pos = pos1;
            }
          } else {
            result0 = null;
            pos = pos1;
          }
        } else {
          result0 = null;
          pos = pos1;
        }

        if (result0 !== null) {
          result0 = function (offset, via_maddr) {
            data.maddr = via_maddr;
          }(pos0, result0[2]);
        }

        if (result0 === null) {
          pos = pos0;
        }

        return result0;
      }

      function parse_via_received() {
        var result0, result1, result2;
        var pos0, pos1;
        pos0 = pos;
        pos1 = pos;

        if (input.substr(pos, 8).toLowerCase() === "received") {
          result0 = input.substr(pos, 8);
          pos += 8;
        } else {
          result0 = null;

          if (reportFailures === 0) {
            matchFailed("\"received\"");
          }
        }

        if (result0 !== null) {
          result1 = parse_EQUAL();

          if (result1 !== null) {
            result2 = parse_IPv4address();

            if (result2 === null) {
              result2 = parse_IPv6address();
            }

            if (result2 !== null) {
              result0 = [result0, result1, result2];
            } else {
              result0 = null;
              pos = pos1;
            }
          } else {
            result0 = null;
            pos = pos1;
          }
        } else {
          result0 = null;
          pos = pos1;
        }

        if (result0 !== null) {
          result0 = function (offset, via_received) {
            data.received = via_received;
          }(pos0, result0[2]);
        }

        if (result0 === null) {
          pos = pos0;
        }

        return result0;
      }

      function parse_via_branch() {
        var result0, result1, result2;
        var pos0, pos1;
        pos0 = pos;
        pos1 = pos;

        if (input.substr(pos, 6).toLowerCase() === "branch") {
          result0 = input.substr(pos, 6);
          pos += 6;
        } else {
          result0 = null;

          if (reportFailures === 0) {
            matchFailed("\"branch\"");
          }
        }

        if (result0 !== null) {
          result1 = parse_EQUAL();

          if (result1 !== null) {
            result2 = parse_token();

            if (result2 !== null) {
              result0 = [result0, result1, result2];
            } else {
              result0 = null;
              pos = pos1;
            }
          } else {
            result0 = null;
            pos = pos1;
          }
        } else {
          result0 = null;
          pos = pos1;
        }

        if (result0 !== null) {
          result0 = function (offset, via_branch) {
            data.branch = via_branch;
          }(pos0, result0[2]);
        }

        if (result0 === null) {
          pos = pos0;
        }

        return result0;
      }

      function parse_response_port() {
        var result0, result1, result2, result3;
        var pos0, pos1, pos2;
        pos0 = pos;
        pos1 = pos;

        if (input.substr(pos, 5).toLowerCase() === "rport") {
          result0 = input.substr(pos, 5);
          pos += 5;
        } else {
          result0 = null;

          if (reportFailures === 0) {
            matchFailed("\"rport\"");
          }
        }

        if (result0 !== null) {
          pos2 = pos;
          result1 = parse_EQUAL();

          if (result1 !== null) {
            result2 = [];
            result3 = parse_DIGIT();

            while (result3 !== null) {
              result2.push(result3);
              result3 = parse_DIGIT();
            }

            if (result2 !== null) {
              result1 = [result1, result2];
            } else {
              result1 = null;
              pos = pos2;
            }
          } else {
            result1 = null;
            pos = pos2;
          }

          result1 = result1 !== null ? result1 : "";

          if (result1 !== null) {
            result0 = [result0, result1];
          } else {
            result0 = null;
            pos = pos1;
          }
        } else {
          result0 = null;
          pos = pos1;
        }

        if (result0 !== null) {
          result0 = function (offset) {
            if (typeof response_port !== 'undefined') data.rport = response_port.join('');
          }(pos0);
        }

        if (result0 === null) {
          pos = pos0;
        }

        return result0;
      }

      function parse_sent_protocol() {
        var result0, result1, result2, result3, result4;
        var pos0;
        pos0 = pos;
        result0 = parse_protocol_name();

        if (result0 !== null) {
          result1 = parse_SLASH();

          if (result1 !== null) {
            result2 = parse_token();

            if (result2 !== null) {
              result3 = parse_SLASH();

              if (result3 !== null) {
                result4 = parse_transport();

                if (result4 !== null) {
                  result0 = [result0, result1, result2, result3, result4];
                } else {
                  result0 = null;
                  pos = pos0;
                }
              } else {
                result0 = null;
                pos = pos0;
              }
            } else {
              result0 = null;
              pos = pos0;
            }
          } else {
            result0 = null;
            pos = pos0;
          }
        } else {
          result0 = null;
          pos = pos0;
        }

        return result0;
      }

      function parse_protocol_name() {
        var result0;
        var pos0;
        pos0 = pos;

        if (input.substr(pos, 3).toLowerCase() === "sip") {
          result0 = input.substr(pos, 3);
          pos += 3;
        } else {
          result0 = null;

          if (reportFailures === 0) {
            matchFailed("\"SIP\"");
          }
        }

        if (result0 === null) {
          result0 = parse_token();
        }

        if (result0 !== null) {
          result0 = function (offset, via_protocol) {
            data.protocol = via_protocol;
          }(pos0, result0);
        }

        if (result0 === null) {
          pos = pos0;
        }

        return result0;
      }

      function parse_transport() {
        var result0;
        var pos0;
        pos0 = pos;

        if (input.substr(pos, 3).toLowerCase() === "udp") {
          result0 = input.substr(pos, 3);
          pos += 3;
        } else {
          result0 = null;

          if (reportFailures === 0) {
            matchFailed("\"UDP\"");
          }
        }

        if (result0 === null) {
          if (input.substr(pos, 3).toLowerCase() === "tcp") {
            result0 = input.substr(pos, 3);
            pos += 3;
          } else {
            result0 = null;

            if (reportFailures === 0) {
              matchFailed("\"TCP\"");
            }
          }

          if (result0 === null) {
            if (input.substr(pos, 3).toLowerCase() === "tls") {
              result0 = input.substr(pos, 3);
              pos += 3;
            } else {
              result0 = null;

              if (reportFailures === 0) {
                matchFailed("\"TLS\"");
              }
            }

            if (result0 === null) {
              if (input.substr(pos, 4).toLowerCase() === "sctp") {
                result0 = input.substr(pos, 4);
                pos += 4;
              } else {
                result0 = null;

                if (reportFailures === 0) {
                  matchFailed("\"SCTP\"");
                }
              }

              if (result0 === null) {
                result0 = parse_token();
              }
            }
          }
        }

        if (result0 !== null) {
          result0 = function (offset, via_transport) {
            data.transport = via_transport;
          }(pos0, result0);
        }

        if (result0 === null) {
          pos = pos0;
        }

        return result0;
      }

      function parse_sent_by() {
        var result0, result1, result2;
        var pos0, pos1;
        pos0 = pos;
        result0 = parse_via_host();

        if (result0 !== null) {
          pos1 = pos;
          result1 = parse_COLON();

          if (result1 !== null) {
            result2 = parse_via_port();

            if (result2 !== null) {
              result1 = [result1, result2];
            } else {
              result1 = null;
              pos = pos1;
            }
          } else {
            result1 = null;
            pos = pos1;
          }

          result1 = result1 !== null ? result1 : "";

          if (result1 !== null) {
            result0 = [result0, result1];
          } else {
            result0 = null;
            pos = pos0;
          }
        } else {
          result0 = null;
          pos = pos0;
        }

        return result0;
      }

      function parse_via_host() {
        var result0;
        var pos0;
        pos0 = pos;
        result0 = parse_IPv4address();

        if (result0 === null) {
          result0 = parse_IPv6reference();

          if (result0 === null) {
            result0 = parse_hostname();
          }
        }

        if (result0 !== null) {
          result0 = function (offset) {
            data.host = input.substring(pos, offset);
          }(pos0);
        }

        if (result0 === null) {
          pos = pos0;
        }

        return result0;
      }

      function parse_via_port() {
        var result0, result1, result2, result3, result4;
        var pos0, pos1;
        pos0 = pos;
        pos1 = pos;
        result0 = parse_DIGIT();
        result0 = result0 !== null ? result0 : "";

        if (result0 !== null) {
          result1 = parse_DIGIT();
          result1 = result1 !== null ? result1 : "";

          if (result1 !== null) {
            result2 = parse_DIGIT();
            result2 = result2 !== null ? result2 : "";

            if (result2 !== null) {
              result3 = parse_DIGIT();
              result3 = result3 !== null ? result3 : "";

              if (result3 !== null) {
                result4 = parse_DIGIT();
                result4 = result4 !== null ? result4 : "";

                if (result4 !== null) {
                  result0 = [result0, result1, result2, result3, result4];
                } else {
                  result0 = null;
                  pos = pos1;
                }
              } else {
                result0 = null;
                pos = pos1;
              }
            } else {
              result0 = null;
              pos = pos1;
            }
          } else {
            result0 = null;
            pos = pos1;
          }
        } else {
          result0 = null;
          pos = pos1;
        }

        if (result0 !== null) {
          result0 = function (offset, via_sent_by_port) {
            data.port = parseInt(via_sent_by_port.join(''));
          }(pos0, result0);
        }

        if (result0 === null) {
          pos = pos0;
        }

        return result0;
      }

      function parse_ttl() {
        var result0, result1, result2;
        var pos0, pos1;
        pos0 = pos;
        pos1 = pos;
        result0 = parse_DIGIT();

        if (result0 !== null) {
          result1 = parse_DIGIT();
          result1 = result1 !== null ? result1 : "";

          if (result1 !== null) {
            result2 = parse_DIGIT();
            result2 = result2 !== null ? result2 : "";

            if (result2 !== null) {
              result0 = [result0, result1, result2];
            } else {
              result0 = null;
              pos = pos1;
            }
          } else {
            result0 = null;
            pos = pos1;
          }
        } else {
          result0 = null;
          pos = pos1;
        }

        if (result0 !== null) {
          result0 = function (offset, ttl) {
            return parseInt(ttl.join(''));
          }(pos0, result0);
        }

        if (result0 === null) {
          pos = pos0;
        }

        return result0;
      }

      function parse_WWW_Authenticate() {
        var result0;
        result0 = parse_challenge();
        return result0;
      }

      function parse_Session_Expires() {
        var result0, result1, result2, result3;
        var pos0, pos1;
        pos0 = pos;
        result0 = parse_s_e_expires();

        if (result0 !== null) {
          result1 = [];
          pos1 = pos;
          result2 = parse_SEMI();

          if (result2 !== null) {
            result3 = parse_s_e_params();

            if (result3 !== null) {
              result2 = [result2, result3];
            } else {
              result2 = null;
              pos = pos1;
            }
          } else {
            result2 = null;
            pos = pos1;
          }

          while (result2 !== null) {
            result1.push(result2);
            pos1 = pos;
            result2 = parse_SEMI();

            if (result2 !== null) {
              result3 = parse_s_e_params();

              if (result3 !== null) {
                result2 = [result2, result3];
              } else {
                result2 = null;
                pos = pos1;
              }
            } else {
              result2 = null;
              pos = pos1;
            }
          }

          if (result1 !== null) {
            result0 = [result0, result1];
          } else {
            result0 = null;
            pos = pos0;
          }
        } else {
          result0 = null;
          pos = pos0;
        }

        return result0;
      }

      function parse_s_e_expires() {
        var result0;
        var pos0;
        pos0 = pos;
        result0 = parse_delta_seconds();

        if (result0 !== null) {
          result0 = function (offset, expires) {
            data.expires = expires;
          }(pos0, result0);
        }

        if (result0 === null) {
          pos = pos0;
        }

        return result0;
      }

      function parse_s_e_params() {
        var result0;
        result0 = parse_s_e_refresher();

        if (result0 === null) {
          result0 = parse_generic_param();
        }

        return result0;
      }

      function parse_s_e_refresher() {
        var result0, result1, result2;
        var pos0, pos1;
        pos0 = pos;
        pos1 = pos;

        if (input.substr(pos, 9).toLowerCase() === "refresher") {
          result0 = input.substr(pos, 9);
          pos += 9;
        } else {
          result0 = null;

          if (reportFailures === 0) {
            matchFailed("\"refresher\"");
          }
        }

        if (result0 !== null) {
          result1 = parse_EQUAL();

          if (result1 !== null) {
            if (input.substr(pos, 3).toLowerCase() === "uac") {
              result2 = input.substr(pos, 3);
              pos += 3;
            } else {
              result2 = null;

              if (reportFailures === 0) {
                matchFailed("\"uac\"");
              }
            }

            if (result2 === null) {
              if (input.substr(pos, 3).toLowerCase() === "uas") {
                result2 = input.substr(pos, 3);
                pos += 3;
              } else {
                result2 = null;

                if (reportFailures === 0) {
                  matchFailed("\"uas\"");
                }
              }
            }

            if (result2 !== null) {
              result0 = [result0, result1, result2];
            } else {
              result0 = null;
              pos = pos1;
            }
          } else {
            result0 = null;
            pos = pos1;
          }
        } else {
          result0 = null;
          pos = pos1;
        }

        if (result0 !== null) {
          result0 = function (offset, s_e_refresher_value) {
            data.refresher = s_e_refresher_value.toLowerCase();
          }(pos0, result0[2]);
        }

        if (result0 === null) {
          pos = pos0;
        }

        return result0;
      }

      function parse_extension_header() {
        var result0, result1, result2;
        var pos0;
        pos0 = pos;
        result0 = parse_token();

        if (result0 !== null) {
          result1 = parse_HCOLON();

          if (result1 !== null) {
            result2 = parse_header_value();

            if (result2 !== null) {
              result0 = [result0, result1, result2];
            } else {
              result0 = null;
              pos = pos0;
            }
          } else {
            result0 = null;
            pos = pos0;
          }
        } else {
          result0 = null;
          pos = pos0;
        }

        return result0;
      }

      function parse_header_value() {
        var result0, result1;
        result0 = [];
        result1 = parse_TEXT_UTF8char();

        if (result1 === null) {
          result1 = parse_UTF8_CONT();

          if (result1 === null) {
            result1 = parse_LWS();
          }
        }

        while (result1 !== null) {
          result0.push(result1);
          result1 = parse_TEXT_UTF8char();

          if (result1 === null) {
            result1 = parse_UTF8_CONT();

            if (result1 === null) {
              result1 = parse_LWS();
            }
          }
        }

        return result0;
      }

      function parse_message_body() {
        var result0, result1;
        result0 = [];
        result1 = parse_OCTET();

        while (result1 !== null) {
          result0.push(result1);
          result1 = parse_OCTET();
        }

        return result0;
      }

      function parse_uuid_URI() {
        var result0, result1;
        var pos0;
        pos0 = pos;

        if (input.substr(pos, 5) === "uuid:") {
          result0 = "uuid:";
          pos += 5;
        } else {
          result0 = null;

          if (reportFailures === 0) {
            matchFailed("\"uuid:\"");
          }
        }

        if (result0 !== null) {
          result1 = parse_uuid();

          if (result1 !== null) {
            result0 = [result0, result1];
          } else {
            result0 = null;
            pos = pos0;
          }
        } else {
          result0 = null;
          pos = pos0;
        }

        return result0;
      }

      function parse_uuid() {
        var result0, result1, result2, result3, result4, result5, result6, result7, result8;
        var pos0, pos1;
        pos0 = pos;
        pos1 = pos;
        result0 = parse_hex8();

        if (result0 !== null) {
          if (input.charCodeAt(pos) === 45) {
            result1 = "-";
            pos++;
          } else {
            result1 = null;

            if (reportFailures === 0) {
              matchFailed("\"-\"");
            }
          }

          if (result1 !== null) {
            result2 = parse_hex4();

            if (result2 !== null) {
              if (input.charCodeAt(pos) === 45) {
                result3 = "-";
                pos++;
              } else {
                result3 = null;

                if (reportFailures === 0) {
                  matchFailed("\"-\"");
                }
              }

              if (result3 !== null) {
                result4 = parse_hex4();

                if (result4 !== null) {
                  if (input.charCodeAt(pos) === 45) {
                    result5 = "-";
                    pos++;
                  } else {
                    result5 = null;

                    if (reportFailures === 0) {
                      matchFailed("\"-\"");
                    }
                  }

                  if (result5 !== null) {
                    result6 = parse_hex4();

                    if (result6 !== null) {
                      if (input.charCodeAt(pos) === 45) {
                        result7 = "-";
                        pos++;
                      } else {
                        result7 = null;

                        if (reportFailures === 0) {
                          matchFailed("\"-\"");
                        }
                      }

                      if (result7 !== null) {
                        result8 = parse_hex12();

                        if (result8 !== null) {
                          result0 = [result0, result1, result2, result3, result4, result5, result6, result7, result8];
                        } else {
                          result0 = null;
                          pos = pos1;
                        }
                      } else {
                        result0 = null;
                        pos = pos1;
                      }
                    } else {
                      result0 = null;
                      pos = pos1;
                    }
                  } else {
                    result0 = null;
                    pos = pos1;
                  }
                } else {
                  result0 = null;
                  pos = pos1;
                }
              } else {
                result0 = null;
                pos = pos1;
              }
            } else {
              result0 = null;
              pos = pos1;
            }
          } else {
            result0 = null;
            pos = pos1;
          }
        } else {
          result0 = null;
          pos = pos1;
        }

        if (result0 !== null) {
          result0 = function (offset, uuid) {
            data = input.substring(pos + 5, offset);
          }(pos0, result0[0]);
        }

        if (result0 === null) {
          pos = pos0;
        }

        return result0;
      }

      function parse_hex4() {
        var result0, result1, result2, result3;
        var pos0;
        pos0 = pos;
        result0 = parse_HEXDIG();

        if (result0 !== null) {
          result1 = parse_HEXDIG();

          if (result1 !== null) {
            result2 = parse_HEXDIG();

            if (result2 !== null) {
              result3 = parse_HEXDIG();

              if (result3 !== null) {
                result0 = [result0, result1, result2, result3];
              } else {
                result0 = null;
                pos = pos0;
              }
            } else {
              result0 = null;
              pos = pos0;
            }
          } else {
            result0 = null;
            pos = pos0;
          }
        } else {
          result0 = null;
          pos = pos0;
        }

        return result0;
      }

      function parse_hex8() {
        var result0, result1;
        var pos0;
        pos0 = pos;
        result0 = parse_hex4();

        if (result0 !== null) {
          result1 = parse_hex4();

          if (result1 !== null) {
            result0 = [result0, result1];
          } else {
            result0 = null;
            pos = pos0;
          }
        } else {
          result0 = null;
          pos = pos0;
        }

        return result0;
      }

      function parse_hex12() {
        var result0, result1, result2;
        var pos0;
        pos0 = pos;
        result0 = parse_hex4();

        if (result0 !== null) {
          result1 = parse_hex4();

          if (result1 !== null) {
            result2 = parse_hex4();

            if (result2 !== null) {
              result0 = [result0, result1, result2];
            } else {
              result0 = null;
              pos = pos0;
            }
          } else {
            result0 = null;
            pos = pos0;
          }
        } else {
          result0 = null;
          pos = pos0;
        }

        return result0;
      }

      function parse_Refer_To() {
        var result0, result1, result2, result3;
        var pos0, pos1, pos2;
        pos0 = pos;
        pos1 = pos;
        result0 = parse_SIP_URI_noparams();

        if (result0 === null) {
          result0 = parse_name_addr();
        }

        if (result0 !== null) {
          result1 = [];
          pos2 = pos;
          result2 = parse_SEMI();

          if (result2 !== null) {
            result3 = parse_generic_param();

            if (result3 !== null) {
              result2 = [result2, result3];
            } else {
              result2 = null;
              pos = pos2;
            }
          } else {
            result2 = null;
            pos = pos2;
          }

          while (result2 !== null) {
            result1.push(result2);
            pos2 = pos;
            result2 = parse_SEMI();

            if (result2 !== null) {
              result3 = parse_generic_param();

              if (result3 !== null) {
                result2 = [result2, result3];
              } else {
                result2 = null;
                pos = pos2;
              }
            } else {
              result2 = null;
              pos = pos2;
            }
          }

          if (result1 !== null) {
            result0 = [result0, result1];
          } else {
            result0 = null;
            pos = pos1;
          }
        } else {
          result0 = null;
          pos = pos1;
        }

        if (result0 !== null) {
          result0 = function (offset) {
            try {
              data = new NameAddrHeader(data.uri, data.display_name, data.params);
            } catch (e) {
              data = -1;
            }
          }(pos0);
        }

        if (result0 === null) {
          pos = pos0;
        }

        return result0;
      }

      function parse_Replaces() {
        var result0, result1, result2, result3;
        var pos0, pos1;
        pos0 = pos;
        result0 = parse_call_id();

        if (result0 !== null) {
          result1 = [];
          pos1 = pos;
          result2 = parse_SEMI();

          if (result2 !== null) {
            result3 = parse_replaces_param();

            if (result3 !== null) {
              result2 = [result2, result3];
            } else {
              result2 = null;
              pos = pos1;
            }
          } else {
            result2 = null;
            pos = pos1;
          }

          while (result2 !== null) {
            result1.push(result2);
            pos1 = pos;
            result2 = parse_SEMI();

            if (result2 !== null) {
              result3 = parse_replaces_param();

              if (result3 !== null) {
                result2 = [result2, result3];
              } else {
                result2 = null;
                pos = pos1;
              }
            } else {
              result2 = null;
              pos = pos1;
            }
          }

          if (result1 !== null) {
            result0 = [result0, result1];
          } else {
            result0 = null;
            pos = pos0;
          }
        } else {
          result0 = null;
          pos = pos0;
        }

        return result0;
      }

      function parse_call_id() {
        var result0, result1, result2;
        var pos0, pos1, pos2;
        pos0 = pos;
        pos1 = pos;
        result0 = parse_word();

        if (result0 !== null) {
          pos2 = pos;

          if (input.charCodeAt(pos) === 64) {
            result1 = "@";
            pos++;
          } else {
            result1 = null;

            if (reportFailures === 0) {
              matchFailed("\"@\"");
            }
          }

          if (result1 !== null) {
            result2 = parse_word();

            if (result2 !== null) {
              result1 = [result1, result2];
            } else {
              result1 = null;
              pos = pos2;
            }
          } else {
            result1 = null;
            pos = pos2;
          }

          result1 = result1 !== null ? result1 : "";

          if (result1 !== null) {
            result0 = [result0, result1];
          } else {
            result0 = null;
            pos = pos1;
          }
        } else {
          result0 = null;
          pos = pos1;
        }

        if (result0 !== null) {
          result0 = function (offset) {
            data.call_id = input.substring(pos, offset);
          }(pos0);
        }

        if (result0 === null) {
          pos = pos0;
        }

        return result0;
      }

      function parse_replaces_param() {
        var result0;
        result0 = parse_to_tag();

        if (result0 === null) {
          result0 = parse_from_tag();

          if (result0 === null) {
            result0 = parse_early_flag();

            if (result0 === null) {
              result0 = parse_generic_param();
            }
          }
        }

        return result0;
      }

      function parse_to_tag() {
        var result0, result1, result2;
        var pos0, pos1;
        pos0 = pos;
        pos1 = pos;

        if (input.substr(pos, 6) === "to-tag") {
          result0 = "to-tag";
          pos += 6;
        } else {
          result0 = null;

          if (reportFailures === 0) {
            matchFailed("\"to-tag\"");
          }
        }

        if (result0 !== null) {
          result1 = parse_EQUAL();

          if (result1 !== null) {
            result2 = parse_token();

            if (result2 !== null) {
              result0 = [result0, result1, result2];
            } else {
              result0 = null;
              pos = pos1;
            }
          } else {
            result0 = null;
            pos = pos1;
          }
        } else {
          result0 = null;
          pos = pos1;
        }

        if (result0 !== null) {
          result0 = function (offset, to_tag) {
            data.to_tag = to_tag;
          }(pos0, result0[2]);
        }

        if (result0 === null) {
          pos = pos0;
        }

        return result0;
      }

      function parse_from_tag() {
        var result0, result1, result2;
        var pos0, pos1;
        pos0 = pos;
        pos1 = pos;

        if (input.substr(pos, 8) === "from-tag") {
          result0 = "from-tag";
          pos += 8;
        } else {
          result0 = null;

          if (reportFailures === 0) {
            matchFailed("\"from-tag\"");
          }
        }

        if (result0 !== null) {
          result1 = parse_EQUAL();

          if (result1 !== null) {
            result2 = parse_token();

            if (result2 !== null) {
              result0 = [result0, result1, result2];
            } else {
              result0 = null;
              pos = pos1;
            }
          } else {
            result0 = null;
            pos = pos1;
          }
        } else {
          result0 = null;
          pos = pos1;
        }

        if (result0 !== null) {
          result0 = function (offset, from_tag) {
            data.from_tag = from_tag;
          }(pos0, result0[2]);
        }

        if (result0 === null) {
          pos = pos0;
        }

        return result0;
      }

      function parse_early_flag() {
        var result0;
        var pos0;
        pos0 = pos;

        if (input.substr(pos, 10) === "early-only") {
          result0 = "early-only";
          pos += 10;
        } else {
          result0 = null;

          if (reportFailures === 0) {
            matchFailed("\"early-only\"");
          }
        }

        if (result0 !== null) {
          result0 = function (offset) {
            data.early_only = true;
          }(pos0);
        }

        if (result0 === null) {
          pos = pos0;
        }

        return result0;
      }

      function cleanupExpected(expected) {
        expected.sort();
        var lastExpected = null;
        var cleanExpected = [];

        for (var i = 0; i < expected.length; i++) {
          if (expected[i] !== lastExpected) {
            cleanExpected.push(expected[i]);
            lastExpected = expected[i];
          }
        }

        return cleanExpected;
      }

      function computeErrorPosition() {
        /*
         * The first idea was to use |String.split| to break the input up to the
         * error position along newlines and derive the line and column from
         * there. However IE's |split| implementation is so broken that it was
         * enough to prevent it.
         */
        var line = 1;
        var column = 1;
        var seenCR = false;

        for (var i = 0; i < Math.max(pos, rightmostFailuresPos); i++) {
          var ch = input.charAt(i);

          if (ch === "\n") {
            if (!seenCR) {
              line++;
            }

            column = 1;
            seenCR = false;
          } else if (ch === "\r" || ch === "\u2028" || ch === "\u2029") {
            line++;
            column = 1;
            seenCR = true;
          } else {
            column++;
            seenCR = false;
          }
        }

        return {
          line: line,
          column: column
        };
      }

      var URI = __webpack_require__(8);

      var NameAddrHeader = __webpack_require__(11);

      var data = {};
      var result = parseFunctions[startRule]();
      /*
       * The parser is now in one of the following three states:
       *
       * 1. The parser successfully parsed the whole input.
       *
       *    - |result !== null|
       *    - |pos === input.length|
       *    - |rightmostFailuresExpected| may or may not contain something
       *
       * 2. The parser successfully parsed only a part of the input.
       *
       *    - |result !== null|
       *    - |pos < input.length|
       *    - |rightmostFailuresExpected| may or may not contain something
       *
       * 3. The parser did not successfully parse any part of the input.
       *
       *   - |result === null|
       *   - |pos === 0|
       *   - |rightmostFailuresExpected| contains at least one failure
       *
       * All code following this comment (including called functions) must
       * handle these states.
       */

      if (result === null || pos !== input.length) {
        var offset = Math.max(pos, rightmostFailuresPos);
        var found = offset < input.length ? input.charAt(offset) : null;
        var errorPosition = computeErrorPosition();
        new this.SyntaxError(cleanupExpected(rightmostFailuresExpected), found, offset, errorPosition.line, errorPosition.column);
        return -1;
      }

      return data;
    },

    /* Returns the parser source code. */
    toSource: function toSource() {
      return this._source;
    }
  };
  /* Thrown when a parser encounters a syntax error. */

  result.SyntaxError = function (expected, found, offset, line, column) {
    function buildMessage(expected, found) {
      var expectedHumanized, foundHumanized;

      switch (expected.length) {
        case 0:
          expectedHumanized = "end of input";
          break;

        case 1:
          expectedHumanized = expected[0];
          break;

        default:
          expectedHumanized = expected.slice(0, expected.length - 1).join(", ") + " or " + expected[expected.length - 1];
      }

      foundHumanized = found ? quote(found) : "end of input";
      return "Expected " + expectedHumanized + " but " + foundHumanized + " found.";
    }

    this.name = "SyntaxError";
    this.expected = expected;
    this.found = found;
    this.message = buildMessage(expected, found);
    this.offset = offset;
    this.line = line;
    this.column = column;
  };

  result.SyntaxError.prototype = Error.prototype;
  return result;
}();

}),
/* 4 */
(function(module, __webpack_exports__, __webpack_require__) {

"use strict";
/* harmony export (immutable) */ __webpack_exports__["e"] = extractVersion;
/* harmony export (immutable) */ __webpack_exports__["g"] = wrapPeerConnectionEvent;
/* harmony export (immutable) */ __webpack_exports__["c"] = disableLog;
/* harmony export (immutable) */ __webpack_exports__["d"] = disableWarnings;
/* harmony export (immutable) */ __webpack_exports__["f"] = log;
/* harmony export (immutable) */ __webpack_exports__["a"] = deprecated;
/* harmony export (immutable) */ __webpack_exports__["b"] = detectBrowser;
/*
 *  Copyright (c) 2016 The WebRTC project authors. All Rights Reserved.
 *
 *  Use of this source code is governed by a BSD-style license
 *  that can be found in the LICENSE file in the root of the source
 *  tree.
 */

/* eslint-env node */


let logDisabled_ = true;
let deprecationWarnings_ = true;
/**
 * Extract browser version out of the provided user agent string.
 *
 * @param {!string} uastring userAgent string.
 * @param {!string} expr Regular expression used as match criteria.
 * @param {!number} pos position in the version string to be returned.
 * @return {!number} browser version.
 */

function extractVersion(uastring, expr, pos) {
  const match = uastring.match(expr);
  return match && match.length >= pos && parseInt(match[pos], 10);
} // Wraps the peerconnection event eventNameToWrap in a function
// which returns the modified event object (or false to prevent
// the event).

function wrapPeerConnectionEvent(window, eventNameToWrap, wrapper) {
  if (!window.RTCPeerConnection) {
    return;
  }

  const proto = window.RTCPeerConnection.prototype;
  const nativeAddEventListener = proto.addEventListener;

  proto.addEventListener = function (nativeEventName, cb) {
    if (nativeEventName !== eventNameToWrap) {
      return nativeAddEventListener.apply(this, arguments);
    }

    const wrappedCallback = e => {
      const modifiedEvent = wrapper(e);

      if (modifiedEvent) {
        cb(modifiedEvent);
      }
    };

    this._eventMap = this._eventMap || {};
    this._eventMap[cb] = wrappedCallback;
    return nativeAddEventListener.apply(this, [nativeEventName, wrappedCallback]);
  };

  const nativeRemoveEventListener = proto.removeEventListener;

  proto.removeEventListener = function (nativeEventName, cb) {
    if (nativeEventName !== eventNameToWrap || !this._eventMap || !this._eventMap[cb]) {
      return nativeRemoveEventListener.apply(this, arguments);
    }

    const unwrappedCb = this._eventMap[cb];
    delete this._eventMap[cb];
    return nativeRemoveEventListener.apply(this, [nativeEventName, unwrappedCb]);
  };

  Object.defineProperty(proto, 'on' + eventNameToWrap, {
    get() {
      return this['_on' + eventNameToWrap];
    },

    set(cb) {
      if (this['_on' + eventNameToWrap]) {
        this.removeEventListener(eventNameToWrap, this['_on' + eventNameToWrap]);
        delete this['_on' + eventNameToWrap];
      }

      if (cb) {
        this.addEventListener(eventNameToWrap, this['_on' + eventNameToWrap] = cb);
      }
    },

    enumerable: true,
    configurable: true
  });
}
function disableLog(bool) {
  if (typeof bool !== 'boolean') {
    return new Error('Argument type: ' + typeof bool + '. Please use a boolean.');
  }

  logDisabled_ = bool;
  return bool ? 'adapter.js logging disabled' : 'adapter.js logging enabled';
}
/**
 * Disable or enable deprecation warnings
 * @param {!boolean} bool set to true to disable warnings.
 */

function disableWarnings(bool) {
  if (typeof bool !== 'boolean') {
    return new Error('Argument type: ' + typeof bool + '. Please use a boolean.');
  }

  deprecationWarnings_ = !bool;
  return 'adapter.js deprecation warnings ' + (bool ? 'disabled' : 'enabled');
}
function log() {
  if (typeof window === 'object') {
    if (logDisabled_) {
      return;
    }

    if (typeof console !== 'undefined' && typeof console.log === 'function') {
      console.log.apply(console, arguments);
    }
  }
}
/**
 * Shows a deprecation warning suggesting the modern and spec-compatible API.
 */

function deprecated(oldMethod, newMethod) {
  if (!deprecationWarnings_) {
    return;
  }

  console.warn(oldMethod + ' is deprecated, please use ' + newMethod + ' instead.');
}
/**
 * Browser detector.
 *
 * @return {object} result containing browser and version
 *     properties.
 */

function detectBrowser(window) {
  const {
    navigator
  } = window; // Returned result object.

  const result = {
    browser: null,
    version: null
  }; // Fail early if it's not a browser

  if (typeof window === 'undefined' || !window.navigator) {
    result.browser = 'Not a browser.';
    return result;
  }

  if (navigator.mozGetUserMedia) {
    // Firefox.
    result.browser = 'firefox';
    result.version = extractVersion(navigator.userAgent, /Firefox\/(\d+)\./, 1);
  } else if (navigator.webkitGetUserMedia) {
    // Chrome, Chromium, Webview, Opera.
    // Version matches Chrome/WebRTC version.
    result.browser = 'chrome';
    result.version = extractVersion(navigator.userAgent, /Chrom(e|ium)\/(\d+)\./, 2);
  } else if (navigator.mediaDevices && navigator.userAgent.match(/Edge\/(\d+).(\d+)$/)) {
    // Edge.
    result.browser = 'edge';
    result.version = extractVersion(navigator.userAgent, /Edge\/(\d+).(\d+)$/, 2);
  } else if (window.RTCPeerConnection && navigator.userAgent.match(/AppleWebKit\/(\d+)\./)) {
    // Safari.
    result.browser = 'safari';
    result.version = extractVersion(navigator.userAgent, /AppleWebKit\/(\d+)\./, 1);
  } else {
    // Default fallthrough: not supported.
    result.browser = 'Not a supported browser.';
    return result;
  }

  return result;
}

}),
/* 5 */
(function(module, exports, __webpack_require__) {

"use strict";


function _typeof(obj) {
  if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") {
    _typeof = function _typeof(obj) {
      return typeof obj;
    };
  } else {
    _typeof = function _typeof(obj) {
      return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj;
    };
  }

  return _typeof(obj);
}

function _possibleConstructorReturn(self, call) {
  if (call && (_typeof(call) === "object" || typeof call === "function")) {
    return call;
  }

  return _assertThisInitialized(self);
}

function _assertThisInitialized(self) {
  if (self === void 0) {
    throw new ReferenceError("this hasn't been initialised - super() hasn't been called");
  }

  return self;
}

function _getPrototypeOf(o) {
  _getPrototypeOf = Object.setPrototypeOf ? Object.getPrototypeOf : function _getPrototypeOf(o) {
    return o.__proto__ || Object.getPrototypeOf(o);
  };
  return _getPrototypeOf(o);
}

function _inherits(subClass, superClass) {
  if (typeof superClass !== "function" && superClass !== null) {
    throw new TypeError("Super expression must either be null or a function");
  }

  subClass.prototype = Object.create(superClass && superClass.prototype, {
    constructor: {
      value: subClass,
      writable: true,
      configurable: true
    }
  });
  if (superClass) _setPrototypeOf(subClass, superClass);
}

function _setPrototypeOf(o, p) {
  _setPrototypeOf = Object.setPrototypeOf || function _setPrototypeOf(o, p) {
    o.__proto__ = p;
    return o;
  };

  return _setPrototypeOf(o, p);
}

function _classCallCheck(instance, Constructor) {
  if (!(instance instanceof Constructor)) {
    throw new TypeError("Cannot call a class as a function");
  }
}

function _defineProperties(target, props) {
  for (var i = 0; i < props.length; i++) {
    var descriptor = props[i];
    descriptor.enumerable = descriptor.enumerable || false;
    descriptor.configurable = true;
    if ("value" in descriptor) descriptor.writable = true;
    Object.defineProperty(target, descriptor.key, descriptor);
  }
}

function _createClass(Constructor, protoProps, staticProps) {
  if (protoProps) _defineProperties(Constructor.prototype, protoProps);
  if (staticProps) _defineProperties(Constructor, staticProps);
  return Constructor;
}

var sdp_transform = __webpack_require__(13);

var JsSIP_C = __webpack_require__(1);

var Utils = __webpack_require__(2);

var NameAddrHeader = __webpack_require__(11);

var Grammar = __webpack_require__(3);

var debug = __webpack_require__(0)('JsSIP:SIPMessage');
/**
 * -param {String} method request method
 * -param {String} ruri request uri
 * -param {UA} ua
 * -param {Object} params parameters that will have priority over ua.configuration parameters:
 * <br>
 *  - cseq, call_id, from_tag, from_uri, from_display_name, to_uri, to_tag, route_set
 * -param {Object} [headers] extra headers
 * -param {String} [body]
 */


var OutgoingRequest =
/*#__PURE__*/
function () {
  function OutgoingRequest(method, ruri, ua, params, extraHeaders, body) {
    _classCallCheck(this, OutgoingRequest); // Mandatory parameters check.


    if (!method || !ruri || !ua) {
      return null;
    }

    params = params || {};
    this.ua = ua;
    this.headers = {};
    this.method = method;
    this.ruri = ruri;
    this.body = body;
    this.extraHeaders = Utils.cloneArray(extraHeaders); // Fill the Common SIP Request Headers.
    // Route.

    if (params.route_set) {
      this.setHeader('route', params.route_set);
    } else if (ua.configuration.use_preloaded_route) {
      this.setHeader('route', "<".concat(ua.transport.sip_uri, ";lr>"));
    } // Via.
    // Empty Via header. Will be filled by the client transaction.


    this.setHeader('via', ''); // Max-Forwards.

    this.setHeader('max-forwards', JsSIP_C.MAX_FORWARDS); // To

    var to = params.to_display_name || params.to_display_name === 0 ? "\"".concat(params.to_display_name, "\" ") : '';
    to += "<".concat(params.to_uri || ruri, ">");
    to += params.to_tag ? ";tag=".concat(params.to_tag) : '';
    this.to = NameAddrHeader.parse(to);
    this.setHeader('to', to); // From.

    var from;

    if (params.from_display_name || params.from_display_name === 0) {
      from = "\"".concat(params.from_display_name, "\" ");
    } else if (ua.configuration.display_name) {
      from = "\"".concat(ua.configuration.display_name, "\" ");
    } else {
      from = '';
    }

    from += "<".concat(params.from_uri || ua.configuration.uri, ">;tag=");
    from += params.from_tag || Utils.newTag();
    this.from = NameAddrHeader.parse(from);
    this.setHeader('from', from); // Call-ID.

    var call_id = params.call_id || ua.configuration.jssip_id + Utils.createRandomToken(15);
    this.call_id = call_id;
    this.setHeader('call-id', call_id); // CSeq.

    var cseq = params.cseq || Math.floor(Math.random() * 10000);
    this.cseq = cseq;
    this.setHeader('cseq', "".concat(cseq, " ").concat(method));
  }
  /**
   * Replace the the given header by the given value.
   * -param {String} name header name
   * -param {String | Array} value header value
   */


  _createClass(OutgoingRequest, [{
    key: "setHeader",
    value: function setHeader(name, value) {
      // Remove the header from extraHeaders if present.
      var regexp = new RegExp("^\\s*".concat(name, "\\s*:"), 'i');

      for (var idx = 0; idx < this.extraHeaders.length; idx++) {
        if (regexp.test(this.extraHeaders[idx])) {
          this.extraHeaders.splice(idx, 1);
        }
      }

      this.headers[Utils.headerize(name)] = Array.isArray(value) ? value : [value];
    }
    /**
     * Get the value of the given header name at the given position.
     * -param {String} name header name
     * -returns {String|undefined} Returns the specified header, null if header doesn't exist.
     */

  }, {
    key: "getHeader",
    value: function getHeader(name) {
      var headers = this.headers[Utils.headerize(name)];

      if (headers) {
        if (headers[0]) {
          return headers[0];
        }
      } else {
        var regexp = new RegExp("^\\s*".concat(name, "\\s*:"), 'i');
        var _iteratorNormalCompletion = true;
        var _didIteratorError = false;
        var _iteratorError = undefined;

        try {
          for (var _iterator = this.extraHeaders[Symbol.iterator](), _step; !(_iteratorNormalCompletion = (_step = _iterator.next()).done); _iteratorNormalCompletion = true) {
            var header = _step.value;

            if (regexp.test(header)) {
              return header.substring(header.indexOf(':') + 1).trim();
            }
          }
        } catch (err) {
          _didIteratorError = true;
          _iteratorError = err;
        } finally {
          try {
            if (!_iteratorNormalCompletion && _iterator.return != null) {
              _iterator.return();
            }
          } finally {
            if (_didIteratorError) {
              throw _iteratorError;
            }
          }
        }
      }

      return;
    }
    /**
     * Get the header/s of the given name.
     * -param {String} name header name
     * -returns {Array} Array with all the headers of the specified name.
     */

  }, {
    key: "getHeaders",
    value: function getHeaders(name) {
      var headers = this.headers[Utils.headerize(name)];
      var result = [];

      if (headers) {
        var _iteratorNormalCompletion2 = true;
        var _didIteratorError2 = false;
        var _iteratorError2 = undefined;

        try {
          for (var _iterator2 = headers[Symbol.iterator](), _step2; !(_iteratorNormalCompletion2 = (_step2 = _iterator2.next()).done); _iteratorNormalCompletion2 = true) {
            var header = _step2.value;
            result.push(header);
          }
        } catch (err) {
          _didIteratorError2 = true;
          _iteratorError2 = err;
        } finally {
          try {
            if (!_iteratorNormalCompletion2 && _iterator2.return != null) {
              _iterator2.return();
            }
          } finally {
            if (_didIteratorError2) {
              throw _iteratorError2;
            }
          }
        }

        return result;
      } else {
        var regexp = new RegExp("^\\s*".concat(name, "\\s*:"), 'i');
        var _iteratorNormalCompletion3 = true;
        var _didIteratorError3 = false;
        var _iteratorError3 = undefined;

        try {
          for (var _iterator3 = this.extraHeaders[Symbol.iterator](), _step3; !(_iteratorNormalCompletion3 = (_step3 = _iterator3.next()).done); _iteratorNormalCompletion3 = true) {
            var _header = _step3.value;

            if (regexp.test(_header)) {
              result.push(_header.substring(_header.indexOf(':') + 1).trim());
            }
          }
        } catch (err) {
          _didIteratorError3 = true;
          _iteratorError3 = err;
        } finally {
          try {
            if (!_iteratorNormalCompletion3 && _iterator3.return != null) {
              _iterator3.return();
            }
          } finally {
            if (_didIteratorError3) {
              throw _iteratorError3;
            }
          }
        }

        return result;
      }
    }
    /**
     * Verify the existence of the given header.
     * -param {String} name header name
     * -returns {boolean} true if header with given name exists, false otherwise
     */

  }, {
    key: "hasHeader",
    value: function hasHeader(name) {
      if (this.headers[Utils.headerize(name)]) {
        return true;
      } else {
        var regexp = new RegExp("^\\s*".concat(name, "\\s*:"), 'i');
        var _iteratorNormalCompletion4 = true;
        var _didIteratorError4 = false;
        var _iteratorError4 = undefined;

        try {
          for (var _iterator4 = this.extraHeaders[Symbol.iterator](), _step4; !(_iteratorNormalCompletion4 = (_step4 = _iterator4.next()).done); _iteratorNormalCompletion4 = true) {
            var header = _step4.value;

            if (regexp.test(header)) {
              return true;
            }
          }
        } catch (err) {
          _didIteratorError4 = true;
          _iteratorError4 = err;
        } finally {
          try {
            if (!_iteratorNormalCompletion4 && _iterator4.return != null) {
              _iterator4.return();
            }
          } finally {
            if (_didIteratorError4) {
              throw _iteratorError4;
            }
          }
        }
      }

      return false;
    }
    /**
     * Parse the current body as a SDP and store the resulting object
     * into this.sdp.
     * -param {Boolean} force: Parse even if this.sdp already exists.
     *
     * Returns this.sdp.
     */

  }, {
    key: "parseSDP",
    value: function parseSDP(force) {
      if (!force && this.sdp) {
        return this.sdp;
      } else {
        this.sdp = sdp_transform.parse(this.body || '');
        return this.sdp;
      }
    }
  }, {
    key: "toString",
    value: function toString() {
      var msg = "".concat(this.method, " ").concat(this.ruri, " SIP/2.0\r\n");

      for (var headerName in this.headers) {
        if (Object.prototype.hasOwnProperty.call(this.headers, headerName)) {
          var _iteratorNormalCompletion5 = true;
          var _didIteratorError5 = false;
          var _iteratorError5 = undefined;

          try {
            for (var _iterator5 = this.headers[headerName][Symbol.iterator](), _step5; !(_iteratorNormalCompletion5 = (_step5 = _iterator5.next()).done); _iteratorNormalCompletion5 = true) {
              var headerValue = _step5.value;
              msg += "".concat(headerName, ": ").concat(headerValue, "\r\n");
            }
          } catch (err) {
            _didIteratorError5 = true;
            _iteratorError5 = err;
          } finally {
            try {
              if (!_iteratorNormalCompletion5 && _iterator5.return != null) {
                _iterator5.return();
              }
            } finally {
              if (_didIteratorError5) {
                throw _iteratorError5;
              }
            }
          }
        }
      }

      var _iteratorNormalCompletion6 = true;
      var _didIteratorError6 = false;
      var _iteratorError6 = undefined;

      try {
        for (var _iterator6 = this.extraHeaders[Symbol.iterator](), _step6; !(_iteratorNormalCompletion6 = (_step6 = _iterator6.next()).done); _iteratorNormalCompletion6 = true) {
          var header = _step6.value;
          msg += "".concat(header.trim(), "\r\n");
        } // Supported.

      } catch (err) {
        _didIteratorError6 = true;
        _iteratorError6 = err;
      } finally {
        try {
          if (!_iteratorNormalCompletion6 && _iterator6.return != null) {
            _iterator6.return();
          }
        } finally {
          if (_didIteratorError6) {
            throw _iteratorError6;
          }
        }
      }

      var supported = [];

      switch (this.method) {
        case JsSIP_C.REGISTER:
          supported.push('path', 'gruu');
          break;

        case JsSIP_C.INVITE:
          if (this.ua.configuration.session_timers) {
            supported.push('timer');
          }

          if (this.ua.contact.pub_gruu || this.ua.contact.temp_gruu) {
            supported.push('gruu');
          }

          supported.push('ice', 'replaces');
          break;

        case JsSIP_C.UPDATE:
          if (this.ua.configuration.session_timers) {
            supported.push('timer');
          }

          supported.push('ice');
          break;
      }

      supported.push('outbound');
      var userAgent = this.ua.configuration.user_agent || JsSIP_C.USER_AGENT; // Allow.

      msg += "Allow: ".concat(JsSIP_C.ALLOWED_METHODS, "\r\n");
      msg += "Supported: ".concat(supported, "\r\n");
      msg += "User-Agent: ".concat(userAgent, "\r\n");

      if (this.body) {
        var length = Utils.str_utf8_length(this.body);
        msg += "Content-Length: ".concat(length, "\r\n\r\n");
        msg += this.body;
      } else {
        msg += 'Content-Length: 0\r\n\r\n';
      }

      return msg;
    }
  }, {
    key: "clone",
    value: function clone() {
      var request = new OutgoingRequest(this.method, this.ruri, this.ua);
      Object.keys(this.headers).forEach(function (name) {
        request.headers[name] = this.headers[name].slice();
      }, this);
      request.body = this.body;
      request.extraHeaders = Utils.cloneArray(this.extraHeaders);
      request.to = this.to;
      request.from = this.from;
      request.call_id = this.call_id;
      request.cseq = this.cseq;
      return request;
    }
  }]);

  return OutgoingRequest;
}();

var InitialOutgoingInviteRequest =
/*#__PURE__*/
function (_OutgoingRequest) {
  _inherits(InitialOutgoingInviteRequest, _OutgoingRequest);

  function InitialOutgoingInviteRequest(ruri, ua, params, extraHeaders, body) {
    var _this;

    _classCallCheck(this, InitialOutgoingInviteRequest);

    _this = _possibleConstructorReturn(this, _getPrototypeOf(InitialOutgoingInviteRequest).call(this, JsSIP_C.INVITE, ruri, ua, params, extraHeaders, body));
    _this.transaction = null;
    return _this;
  }

  _createClass(InitialOutgoingInviteRequest, [{
    key: "cancel",
    value: function cancel(reason) {
      this.transaction.cancel(reason);
    }
  }, {
    key: "clone",
    value: function clone() {
      var request = new InitialOutgoingInviteRequest(this.ruri, this.ua);
      Object.keys(this.headers).forEach(function (name) {
        request.headers[name] = this.headers[name].slice();
      }, this);
      request.body = this.body;
      request.extraHeaders = Utils.cloneArray(this.extraHeaders);
      request.to = this.to;
      request.from = this.from;
      request.call_id = this.call_id;
      request.cseq = this.cseq;
      request.transaction = this.transaction;
      return request;
    }
  }]);

  return InitialOutgoingInviteRequest;
}(OutgoingRequest);

var IncomingMessage =
/*#__PURE__*/
function () {
  function IncomingMessage() {
    _classCallCheck(this, IncomingMessage);

    this.data = null;
    this.headers = null;
    this.method = null;
    this.via = null;
    this.via_branch = null;
    this.call_id = null;
    this.cseq = null;
    this.from = null;
    this.from_tag = null;
    this.to = null;
    this.to_tag = null;
    this.body = null;
    this.sdp = null;
  }
  /**
  * Insert a header of the given name and value into the last position of the
  * header array.
  */


  _createClass(IncomingMessage, [{
    key: "addHeader",
    value: function addHeader(name, value) {
      var header = {
        raw: value
      };
      name = Utils.headerize(name);

      if (this.headers[name]) {
        this.headers[name].push(header);
      } else {
        this.headers[name] = [header];
      }
    }
    /**
     * Get the value of the given header name at the given position.
     */

  }, {
    key: "getHeader",
    value: function getHeader(name) {
      var header = this.headers[Utils.headerize(name)];

      if (header) {
        if (header[0]) {
          return header[0].raw;
        }
      } else {
        return;
      }
    }
    /**
     * Get the header/s of the given name.
     */

  }, {
    key: "getHeaders",
    value: function getHeaders(name) {
      var headers = this.headers[Utils.headerize(name)];
      var result = [];

      if (!headers) {
        return [];
      }

      var _iteratorNormalCompletion7 = true;
      var _didIteratorError7 = false;
      var _iteratorError7 = undefined;

      try {
        for (var _iterator7 = headers[Symbol.iterator](), _step7; !(_iteratorNormalCompletion7 = (_step7 = _iterator7.next()).done); _iteratorNormalCompletion7 = true) {
          var header = _step7.value;
          result.push(header.raw);
        }
      } catch (err) {
        _didIteratorError7 = true;
        _iteratorError7 = err;
      } finally {
        try {
          if (!_iteratorNormalCompletion7 && _iterator7.return != null) {
            _iterator7.return();
          }
        } finally {
          if (_didIteratorError7) {
            throw _iteratorError7;
          }
        }
      }

      return result;
    }
    /**
     * Verify the existence of the given header.
     */

  }, {
    key: "hasHeader",
    value: function hasHeader(name) {
      return this.headers[Utils.headerize(name)] ? true : false;
    }
    /**
    * Parse the given header on the given index.
    * -param {String} name header name
    * -param {Number} [idx=0] header index
    * -returns {Object|undefined} Parsed header object, undefined if the header
    *  is not present or in case of a parsing error.
    */

  }, {
    key: "parseHeader",
    value: function parseHeader(name) {
      var idx = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : 0;
      name = Utils.headerize(name);

      if (!this.headers[name]) {
        debug("header \"".concat(name, "\" not present"));
        return;
      } else if (idx >= this.headers[name].length) {
        debug("not so many \"".concat(name, "\" headers present"));
        return;
      }

      var header = this.headers[name][idx];
      var value = header.raw;

      if (header.parsed) {
        return header.parsed;
      } // Substitute '-' by '_' for grammar rule matching.


      var parsed = Grammar.parse(value, name.replace(/-/g, '_'));

      if (parsed === -1) {
        this.headers[name].splice(idx, 1); // delete from headers

        debug("error parsing \"".concat(name, "\" header field with value \"").concat(value, "\""));
        return;
      } else {
        header.parsed = parsed;
        return parsed;
      }
    }
    /**
     * Message Header attribute selector. Alias of parseHeader.
     * -param {String} name header name
     * -param {Number} [idx=0] header index
     * -returns {Object|undefined} Parsed header object, undefined if the header
     *  is not present or in case of a parsing error.
     *
     * -example
     * message.s('via',3).port
     */

  }, {
    key: "s",
    value: function s(name, idx) {
      return this.parseHeader(name, idx);
    }
    /**
    * Replace the value of the given header by the value.
    * -param {String} name header name
    * -param {String} value header value
    */

  }, {
    key: "setHeader",
    value: function setHeader(name, value) {
      var header = {
        raw: value
      };
      this.headers[Utils.headerize(name)] = [header];
    }
    /**
     * Parse the current body as a SDP and store the resulting object
     * into this.sdp.
     * -param {Boolean} force: Parse even if this.sdp already exists.
     *
     * Returns this.sdp.
     */

  }, {
    key: "parseSDP",
    value: function parseSDP(force) {
      if (!force && this.sdp) {
        return this.sdp;
      } else {
        this.sdp = sdp_transform.parse(this.body || '');
        return this.sdp;
      }
    }
  }, {
    key: "toString",
    value: function toString() {
      return this.data;
    }
  }]);

  return IncomingMessage;
}();

var IncomingRequest =
/*#__PURE__*/
function (_IncomingMessage) {
  _inherits(IncomingRequest, _IncomingMessage);

  function IncomingRequest(ua) {
    var _this2;

    _classCallCheck(this, IncomingRequest);

    _this2 = _possibleConstructorReturn(this, _getPrototypeOf(IncomingRequest).call(this));
    _this2.ua = ua;
    _this2.headers = {};
    _this2.ruri = null;
    _this2.transport = null;
    _this2.server_transaction = null;
    return _this2;
  }
  /**
  * Stateful reply.
  * -param {Number} code status code
  * -param {String} reason reason phrase
  * -param {Object} headers extra headers
  * -param {String} body body
  * -param {Function} [onSuccess] onSuccess callback
  * -param {Function} [onFailure] onFailure callback
  */


  _createClass(IncomingRequest, [{
    key: "reply",
    value: function reply(code, reason, extraHeaders, body, onSuccess, onFailure) {
      var supported = [];
      var to = this.getHeader('To');
      code = code || null;
      reason = reason || null; // Validate code and reason values.

      if (!code || code < 100 || code > 699) {
        throw new TypeError("Invalid status_code: ".concat(code));
      } else if (reason && typeof reason !== 'string' && !(reason instanceof String)) {
        throw new TypeError("Invalid reason_phrase: ".concat(reason));
      }

      reason = reason || JsSIP_C.REASON_PHRASE[code] || '';
      extraHeaders = Utils.cloneArray(extraHeaders);
      var response = "SIP/2.0 ".concat(code, " ").concat(reason, "\r\n");

      if (this.method === JsSIP_C.INVITE && code > 100 && code <= 200) {
        var headers = this.getHeaders('record-route');
        var _iteratorNormalCompletion8 = true;
        var _didIteratorError8 = false;
        var _iteratorError8 = undefined;

        try {
          for (var _iterator8 = headers[Symbol.iterator](), _step8; !(_iteratorNormalCompletion8 = (_step8 = _iterator8.next()).done); _iteratorNormalCompletion8 = true) {
            var header = _step8.value;
            response += "Record-Route: ".concat(header, "\r\n");
          }
        } catch (err) {
          _didIteratorError8 = true;
          _iteratorError8 = err;
        } finally {
          try {
            if (!_iteratorNormalCompletion8 && _iterator8.return != null) {
              _iterator8.return();
            }
          } finally {
            if (_didIteratorError8) {
              throw _iteratorError8;
            }
          }
        }
      }

      var vias = this.getHeaders('via');
      var _iteratorNormalCompletion9 = true;
      var _didIteratorError9 = false;
      var _iteratorError9 = undefined;

      try {
        for (var _iterator9 = vias[Symbol.iterator](), _step9; !(_iteratorNormalCompletion9 = (_step9 = _iterator9.next()).done); _iteratorNormalCompletion9 = true) {
          var via = _step9.value;
          response += "Via: ".concat(via, "\r\n");
        }
      } catch (err) {
        _didIteratorError9 = true;
        _iteratorError9 = err;
      } finally {
        try {
          if (!_iteratorNormalCompletion9 && _iterator9.return != null) {
            _iterator9.return();
          }
        } finally {
          if (_didIteratorError9) {
            throw _iteratorError9;
          }
        }
      }

      if (!this.to_tag && code > 100) {
        to += ";tag=".concat(Utils.newTag());
      } else if (this.to_tag && !this.s('to').hasParam('tag')) {
        to += ";tag=".concat(this.to_tag);
      }

      response += "To: ".concat(to, "\r\n");
      response += "From: ".concat(this.getHeader('From'), "\r\n");
      response += "Call-ID: ".concat(this.call_id, "\r\n");
      response += "CSeq: ".concat(this.cseq, " ").concat(this.method, "\r\n");
      var _iteratorNormalCompletion10 = true;
      var _didIteratorError10 = false;
      var _iteratorError10 = undefined;

      try {
        for (var _iterator10 = extraHeaders[Symbol.iterator](), _step10; !(_iteratorNormalCompletion10 = (_step10 = _iterator10.next()).done); _iteratorNormalCompletion10 = true) {
          var _header2 = _step10.value;
          response += "".concat(_header2.trim(), "\r\n");
        } // Supported.

      } catch (err) {
        _didIteratorError10 = true;
        _iteratorError10 = err;
      } finally {
        try {
          if (!_iteratorNormalCompletion10 && _iterator10.return != null) {
            _iterator10.return();
          }
        } finally {
          if (_didIteratorError10) {
            throw _iteratorError10;
          }
        }
      }

      switch (this.method) {
        case JsSIP_C.INVITE:
          if (this.ua.configuration.session_timers) {
            supported.push('timer');
          }

          if (this.ua.contact.pub_gruu || this.ua.contact.temp_gruu) {
            supported.push('gruu');
          }

          supported.push('ice', 'replaces');
          break;

        case JsSIP_C.UPDATE:
          if (this.ua.configuration.session_timers) {
            supported.push('timer');
          }

          if (body) {
            supported.push('ice');
          }

          supported.push('replaces');
      }

      supported.push('outbound'); // Allow and Accept.

      if (this.method === JsSIP_C.OPTIONS) {
        response += "Allow: ".concat(JsSIP_C.ALLOWED_METHODS, "\r\n");
        response += "Accept: ".concat(JsSIP_C.ACCEPTED_BODY_TYPES, "\r\n");
      } else if (code === 405) {
        response += "Allow: ".concat(JsSIP_C.ALLOWED_METHODS, "\r\n");
      } else if (code === 415) {
        response += "Accept: ".concat(JsSIP_C.ACCEPTED_BODY_TYPES, "\r\n");
      }

      response += "Supported: ".concat(supported, "\r\n");

      if (body) {
        var length = Utils.str_utf8_length(body);
        response += 'Content-Type: application/sdp\r\n';
        response += "Content-Length: ".concat(length, "\r\n\r\n");
        response += body;
      } else {
        response += "Content-Length: ".concat(0, "\r\n\r\n");
      }

      this.server_transaction.receiveResponse(code, response, onSuccess, onFailure);
    }
    /**
    * Stateless reply.
    * -param {Number} code status code
    * -param {String} reason reason phrase
    */

  }, {
    key: "reply_sl",
    value: function reply_sl() {
      var code = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : null;
      var reason = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : null;
      var vias = this.getHeaders('via'); // Validate code and reason values.

      if (!code || code < 100 || code > 699) {
        throw new TypeError("Invalid status_code: ".concat(code));
      } else if (reason && typeof reason !== 'string' && !(reason instanceof String)) {
        throw new TypeError("Invalid reason_phrase: ".concat(reason));
      }

      reason = reason || JsSIP_C.REASON_PHRASE[code] || '';
      var response = "SIP/2.0 ".concat(code, " ").concat(reason, "\r\n");
      var _iteratorNormalCompletion11 = true;
      var _didIteratorError11 = false;
      var _iteratorError11 = undefined;

      try {
        for (var _iterator11 = vias[Symbol.iterator](), _step11; !(_iteratorNormalCompletion11 = (_step11 = _iterator11.next()).done); _iteratorNormalCompletion11 = true) {
          var via = _step11.value;
          response += "Via: ".concat(via, "\r\n");
        }
      } catch (err) {
        _didIteratorError11 = true;
        _iteratorError11 = err;
      } finally {
        try {
          if (!_iteratorNormalCompletion11 && _iterator11.return != null) {
            _iterator11.return();
          }
        } finally {
          if (_didIteratorError11) {
            throw _iteratorError11;
          }
        }
      }

      var to = this.getHeader('To');

      if (!this.to_tag && code > 100) {
        to += ";tag=".concat(Utils.newTag());
      } else if (this.to_tag && !this.s('to').hasParam('tag')) {
        to += ";tag=".concat(this.to_tag);
      }

      response += "To: ".concat(to, "\r\n");
      response += "From: ".concat(this.getHeader('From'), "\r\n");
      response += "Call-ID: ".concat(this.call_id, "\r\n");
      response += "CSeq: ".concat(this.cseq, " ").concat(this.method, "\r\n");
      response += "Content-Length: ".concat(0, "\r\n\r\n");
      this.transport.send(response);
    }
  }]);

  return IncomingRequest;
}(IncomingMessage);

var IncomingResponse =
/*#__PURE__*/
function (_IncomingMessage2) {
  _inherits(IncomingResponse, _IncomingMessage2);

  function IncomingResponse() {
    var _this3;

    _classCallCheck(this, IncomingResponse);

    _this3 = _possibleConstructorReturn(this, _getPrototypeOf(IncomingResponse).call(this));
    _this3.headers = {};
    _this3.status_code = null;
    _this3.reason_phrase = null;
    return _this3;
  }

  return IncomingResponse;
}(IncomingMessage);

module.exports = {
  OutgoingRequest: OutgoingRequest,
  InitialOutgoingInviteRequest: InitialOutgoingInviteRequest,
  IncomingRequest: IncomingRequest,
  IncomingResponse: IncomingResponse
};

}),
/* 6 */
(function(module, exports, __webpack_require__) {

"use strict";


function _typeof(obj) {
  if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") {
    _typeof = function _typeof(obj) {
      return typeof obj;
    };
  } else {
    _typeof = function _typeof(obj) {
      return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj;
    };
  }

  return _typeof(obj);
}

function _classCallCheck(instance, Constructor) {
  if (!(instance instanceof Constructor)) {
    throw new TypeError("Cannot call a class as a function");
  }
}

function _possibleConstructorReturn(self, call) {
  if (call && (_typeof(call) === "object" || typeof call === "function")) {
    return call;
  }

  return _assertThisInitialized(self);
}

function _assertThisInitialized(self) {
  if (self === void 0) {
    throw new ReferenceError("this hasn't been initialised - super() hasn't been called");
  }

  return self;
}

function _inherits(subClass, superClass) {
  if (typeof superClass !== "function" && superClass !== null) {
    throw new TypeError("Super expression must either be null or a function");
  }

  subClass.prototype = Object.create(superClass && superClass.prototype, {
    constructor: {
      value: subClass,
      writable: true,
      configurable: true
    }
  });
  if (superClass) _setPrototypeOf(subClass, superClass);
}

function _wrapNativeSuper(Class) {
  var _cache = typeof Map === "function" ? new Map() : undefined;

  _wrapNativeSuper = function _wrapNativeSuper(Class) {
    if (Class === null || !_isNativeFunction(Class)) return Class;

    if (typeof Class !== "function") {
      throw new TypeError("Super expression must either be null or a function");
    }

    if (typeof _cache !== "undefined") {
      if (_cache.has(Class)) return _cache.get(Class);

      _cache.set(Class, Wrapper);
    }

    function Wrapper() {
      return _construct(Class, arguments, _getPrototypeOf(this).constructor);
    }

    Wrapper.prototype = Object.create(Class.prototype, {
      constructor: {
        value: Wrapper,
        enumerable: false,
        writable: true,
        configurable: true
      }
    });
    return _setPrototypeOf(Wrapper, Class);
  };

  return _wrapNativeSuper(Class);
}

function isNativeReflectConstruct() {
  if (typeof Reflect === "undefined" || !Reflect.construct) return false;
  if (Reflect.construct.sham) return false;
  if (typeof Proxy === "function") return true;

  try {
    Date.prototype.toString.call(Reflect.construct(Date, [], function () {}));
    return true;
  } catch (e) {
    return false;
  }
}

function _construct(Parent, args, Class) {
  if (isNativeReflectConstruct()) {
    _construct = Reflect.construct;
  } else {
    _construct = function _construct(Parent, args, Class) {
      var a = [null];
      a.push.apply(a, args);
      var Constructor = Function.bind.apply(Parent, a);
      var instance = new Constructor();
      if (Class) _setPrototypeOf(instance, Class.prototype);
      return instance;
    };
  }

  return _construct.apply(null, arguments);
}

function _isNativeFunction(fn) {
  return Function.toString.call(fn).indexOf("[native code]") !== -1;
}

function _setPrototypeOf(o, p) {
  _setPrototypeOf = Object.setPrototypeOf || function _setPrototypeOf(o, p) {
    o.__proto__ = p;
    return o;
  };

  return _setPrototypeOf(o, p);
}

function _getPrototypeOf(o) {
  _getPrototypeOf = Object.setPrototypeOf ? Object.getPrototypeOf : function _getPrototypeOf(o) {
    return o.__proto__ || Object.getPrototypeOf(o);
  };
  return _getPrototypeOf(o);
}

var ConfigurationError =
/*#__PURE__*/
function (_Error) {
  _inherits(ConfigurationError, _Error);

  function ConfigurationError(parameter, value) {
    var _this;

    _classCallCheck(this, ConfigurationError);

    _this = _possibleConstructorReturn(this, _getPrototypeOf(ConfigurationError).call(this));
    _this.code = 1;
    _this.name = 'CONFIGURATION_ERROR';
    _this.parameter = parameter;
    _this.value = value;
    _this.message = !_this.value ? "Missing parameter: ".concat(_this.parameter) : "Invalid value ".concat(JSON.stringify(_this.value), " for parameter \"").concat(_this.parameter, "\"");
    return _this;
  }

  return ConfigurationError;
}(_wrapNativeSuper(Error));

var InvalidStateError =
/*#__PURE__*/
function (_Error2) {
  _inherits(InvalidStateError, _Error2);

  function InvalidStateError(status) {
    var _this2;

    _classCallCheck(this, InvalidStateError);

    _this2 = _possibleConstructorReturn(this, _getPrototypeOf(InvalidStateError).call(this));
    _this2.code = 2;
    _this2.name = 'INVALID_STATE_ERROR';
    _this2.status = status;
    _this2.message = "Invalid status: ".concat(status);
    return _this2;
  }

  return InvalidStateError;
}(_wrapNativeSuper(Error));

var NotSupportedError =
/*#__PURE__*/
function (_Error3) {
  _inherits(NotSupportedError, _Error3);

  function NotSupportedError(message) {
    var _this3;

    _classCallCheck(this, NotSupportedError);

    _this3 = _possibleConstructorReturn(this, _getPrototypeOf(NotSupportedError).call(this));
    _this3.code = 3;
    _this3.name = 'NOT_SUPPORTED_ERROR';
    _this3.message = message;
    return _this3;
  }

  return NotSupportedError;
}(_wrapNativeSuper(Error));

var NotReadyError =
/*#__PURE__*/
function (_Error4) {
  _inherits(NotReadyError, _Error4);

  function NotReadyError(message) {
    var _this4;

    _classCallCheck(this, NotReadyError);

    _this4 = _possibleConstructorReturn(this, _getPrototypeOf(NotReadyError).call(this));
    _this4.code = 4;
    _this4.name = 'NOT_READY_ERROR';
    _this4.message = message;
    return _this4;
  }

  return NotReadyError;
}(_wrapNativeSuper(Error));

module.exports = {
  ConfigurationError: ConfigurationError,
  InvalidStateError: InvalidStateError,
  NotSupportedError: NotSupportedError,
  NotReadyError: NotReadyError
};

}),
/* 7 */
(function(module, exports) {

// Copyright Joyent, Inc. and other Node contributors.
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to permit
// persons to whom the Software is furnished to do so, subject to the
// following conditions:
//
// The above copyright notice and this permission notice shall be included
// in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
// USE OR OTHER DEALINGS IN THE SOFTWARE.
function EventEmitter() {
  this._events = this._events || {};
  this._maxListeners = this._maxListeners || undefined;
}

module.exports = EventEmitter; // Backwards-compat with node 0.10.x

EventEmitter.EventEmitter = EventEmitter;
EventEmitter.prototype._events = undefined;
EventEmitter.prototype._maxListeners = undefined; // By default EventEmitters will print a warning if more than 10 listeners are
// added to it. This is a useful default which helps finding memory leaks.

EventEmitter.defaultMaxListeners = 10; // Obviously not all Emitters should be limited to 10. This function allows
// that to be increased. Set to zero for unlimited.

EventEmitter.prototype.setMaxListeners = function (n) {
  if (!isNumber(n) || n < 0 || isNaN(n)) throw TypeError('n must be a positive number');
  this._maxListeners = n;
  return this;
};

EventEmitter.prototype.emit = function (type) {
  var er, handler, len, args, i, listeners;
  if (!this._events) this._events = {}; // If there is no 'error' event listener then throw.

  if (type === 'error') {
    if (!this._events.error || isObject(this._events.error) && !this._events.error.length) {
      er = arguments[1];

      if (er instanceof Error) {
        throw er; // Unhandled 'error' event
      } else {
        // At least give some kind of context to the user
        var err = new Error('Uncaught, unspecified "error" event. (' + er + ')');
        err.context = er;
        throw err;
      }
    }
  }

  handler = this._events[type];
  if (isUndefined(handler)) return false;

  if (isFunction(handler)) {
    switch (arguments.length) {
      // fast cases
      case 1:
        handler.call(this);
        break;

      case 2:
        handler.call(this, arguments[1]);
        break;

      case 3:
        handler.call(this, arguments[1], arguments[2]);
        break;
      // slower

      default:
        args = Array.prototype.slice.call(arguments, 1);
        handler.apply(this, args);
    }
  } else if (isObject(handler)) {
    args = Array.prototype.slice.call(arguments, 1);
    listeners = handler.slice();
    len = listeners.length;

    for (i = 0; i < len; i++) listeners[i].apply(this, args);
  }

  return true;
};

EventEmitter.prototype.addListener = function (type, listener) {
  var m;
  if (!isFunction(listener)) throw TypeError('listener must be a function');
  if (!this._events) this._events = {}; // To avoid recursion in the case that type === "newListener"! Before
  // adding it to the listeners, first emit "newListener".

  if (this._events.newListener) this.emit('newListener', type, isFunction(listener.listener) ? listener.listener : listener);
  if (!this._events[type]) // Optimize the case of one listener. Don't need the extra array object.
    this._events[type] = listener;else if (isObject(this._events[type])) // If we've already got an array, just append.
    this._events[type].push(listener);else // Adding the second element, need to change to array.
    this._events[type] = [this._events[type], listener]; // Check for listener leak

  if (isObject(this._events[type]) && !this._events[type].warned) {
    if (!isUndefined(this._maxListeners)) {
      m = this._maxListeners;
    } else {
      m = EventEmitter.defaultMaxListeners;
    }

    if (m && m > 0 && this._events[type].length > m) {
      this._events[type].warned = true;
      console.error('(node) warning: possible EventEmitter memory ' + 'leak detected. %d listeners added. ' + 'Use emitter.setMaxListeners() to increase limit.', this._events[type].length);

      if (typeof console.trace === 'function') {
        // not supported in IE 10
        console.trace();
      }
    }
  }

  return this;
};

EventEmitter.prototype.on = EventEmitter.prototype.addListener;

EventEmitter.prototype.once = function (type, listener) {
  if (!isFunction(listener)) throw TypeError('listener must be a function');
  var fired = false;

  function g() {
    this.removeListener(type, g);

    if (!fired) {
      fired = true;
      listener.apply(this, arguments);
    }
  }

  g.listener = listener;
  this.on(type, g);
  return this;
}; // emits a 'removeListener' event iff the listener was removed


EventEmitter.prototype.removeListener = function (type, listener) {
  var list, position, length, i;
  if (!isFunction(listener)) throw TypeError('listener must be a function');
  if (!this._events || !this._events[type]) return this;
  list = this._events[type];
  length = list.length;
  position = -1;

  if (list === listener || isFunction(list.listener) && list.listener === listener) {
    delete this._events[type];
    if (this._events.removeListener) this.emit('removeListener', type, listener);
  } else if (isObject(list)) {
    for (i = length; i-- > 0;) {
      if (list[i] === listener || list[i].listener && list[i].listener === listener) {
        position = i;
        break;
      }
    }

    if (position < 0) return this;

    if (list.length === 1) {
      list.length = 0;
      delete this._events[type];
    } else {
      list.splice(position, 1);
    }

    if (this._events.removeListener) this.emit('removeListener', type, listener);
  }

  return this;
};

EventEmitter.prototype.removeAllListeners = function (type) {
  var key, listeners;
  if (!this._events) return this; // not listening for removeListener, no need to emit

  if (!this._events.removeListener) {
    if (arguments.length === 0) this._events = {};else if (this._events[type]) delete this._events[type];
    return this;
  } // emit removeListener for all listeners on all events


  if (arguments.length === 0) {
    for (key in this._events) {
      if (key === 'removeListener') continue;
      this.removeAllListeners(key);
    }

    this.removeAllListeners('removeListener');
    this._events = {};
    return this;
  }

  listeners = this._events[type];

  if (isFunction(listeners)) {
    this.removeListener(type, listeners);
  } else if (listeners) {
    // LIFO order
    while (listeners.length) this.removeListener(type, listeners[listeners.length - 1]);
  }

  delete this._events[type];
  return this;
};

EventEmitter.prototype.listeners = function (type) {
  var ret;
  if (!this._events || !this._events[type]) ret = [];else if (isFunction(this._events[type])) ret = [this._events[type]];else ret = this._events[type].slice();
  return ret;
};

EventEmitter.prototype.listenerCount = function (type) {
  if (this._events) {
    var evlistener = this._events[type];
    if (isFunction(evlistener)) return 1;else if (evlistener) return evlistener.length;
  }

  return 0;
};

EventEmitter.listenerCount = function (emitter, type) {
  return emitter.listenerCount(type);
};

function isFunction(arg) {
  return typeof arg === 'function';
}

function isNumber(arg) {
  return typeof arg === 'number';
}

function isObject(arg) {
  return typeof arg === 'object' && arg !== null;
}

function isUndefined(arg) {
  return arg === void 0;
}

}),
/* 8 */
(function(module, exports, __webpack_require__) {

"use strict";


function _classCallCheck(instance, Constructor) {
  if (!(instance instanceof Constructor)) {
    throw new TypeError("Cannot call a class as a function");
  }
}

function _defineProperties(target, props) {
  for (var i = 0; i < props.length; i++) {
    var descriptor = props[i];
    descriptor.enumerable = descriptor.enumerable || false;
    descriptor.configurable = true;
    if ("value" in descriptor) descriptor.writable = true;
    Object.defineProperty(target, descriptor.key, descriptor);
  }
}

function _createClass(Constructor, protoProps, staticProps) {
  if (protoProps) _defineProperties(Constructor.prototype, protoProps);
  if (staticProps) _defineProperties(Constructor, staticProps);
  return Constructor;
}

var JsSIP_C = __webpack_require__(1);

var Utils = __webpack_require__(2);

var Grammar = __webpack_require__(3);
/**
 * -param {String} [scheme]
 * -param {String} [user]
 * -param {String} host
 * -param {String} [port]
 * -param {Object} [parameters]
 * -param {Object} [headers]
 *
 */


module.exports =
/*#__PURE__*/
function () {
  _createClass(URI, null, [{
    key: "parse",

    /**
      * Parse the given string and returns a JsSIP.URI instance or undefined if
      * it is an invalid URI.
      */
    value: function parse(uri) {
      uri = Grammar.parse(uri, 'SIP_URI');

      if (uri !== -1) {
        return uri;
      } else {
        return undefined;
      }
    }
  }]);

  function URI(scheme, user, host, port) {
    var parameters = arguments.length > 4 && arguments[4] !== undefined ? arguments[4] : {};
    var headers = arguments.length > 5 && arguments[5] !== undefined ? arguments[5] : {};

    _classCallCheck(this, URI); // Checks.


    if (!host) {
      throw new TypeError('missing or invalid "host" parameter');
    } // Initialize parameters.


    this._parameters = {};
    this._headers = {};
    this._scheme = scheme || JsSIP_C.SIP;
    this._user = user;
    this._host = host;
    this._port = port;

    for (var param in parameters) {
      if (Object.prototype.hasOwnProperty.call(parameters, param)) {
        this.setParam(param, parameters[param]);
      }
    }

    for (var header in headers) {
      if (Object.prototype.hasOwnProperty.call(headers, header)) {
        this.setHeader(header, headers[header]);
      }
    }
  }

  _createClass(URI, [{
    key: "setParam",
    value: function setParam(key, value) {
      if (key) {
        this._parameters[key.toLowerCase()] = typeof value === 'undefined' || value === null ? null : value.toString();
      }
    }
  }, {
    key: "getParam",
    value: function getParam(key) {
      if (key) {
        return this._parameters[key.toLowerCase()];
      }
    }
  }, {
    key: "hasParam",
    value: function hasParam(key) {
      if (key) {
        return this._parameters.hasOwnProperty(key.toLowerCase()) && true || false;
      }
    }
  }, {
    key: "deleteParam",
    value: function deleteParam(parameter) {
      parameter = parameter.toLowerCase();

      if (this._parameters.hasOwnProperty(parameter)) {
        var value = this._parameters[parameter];
        delete this._parameters[parameter];
        return value;
      }
    }
  }, {
    key: "clearParams",
    value: function clearParams() {
      this._parameters = {};
    }
  }, {
    key: "setHeader",
    value: function setHeader(name, value) {
      this._headers[Utils.headerize(name)] = Array.isArray(value) ? value : [value];
    }
  }, {
    key: "getHeader",
    value: function getHeader(name) {
      if (name) {
        return this._headers[Utils.headerize(name)];
      }
    }
  }, {
    key: "hasHeader",
    value: function hasHeader(name) {
      if (name) {
        return this._headers.hasOwnProperty(Utils.headerize(name)) && true || false;
      }
    }
  }, {
    key: "deleteHeader",
    value: function deleteHeader(header) {
      header = Utils.headerize(header);

      if (this._headers.hasOwnProperty(header)) {
        var value = this._headers[header];
        delete this._headers[header];
        return value;
      }
    }
  }, {
    key: "clearHeaders",
    value: function clearHeaders() {
      this._headers = {};
    }
  }, {
    key: "clone",
    value: function clone() {
      return new URI(this._scheme, this._user, this._host, this._port, JSON.parse(JSON.stringify(this._parameters)), JSON.parse(JSON.stringify(this._headers)));
    }
  }, {
    key: "toString",
    value: function toString() {
      var headers = [];
      var uri = "".concat(this._scheme, ":");

      if (this._user) {
        uri += "".concat(Utils.escapeUser(this._user), "@");
      }

      uri += this._host;

      if (this._port || this._port === 0) {
        uri += ":".concat(this._port);
      }

      for (var parameter in this._parameters) {
        if (Object.prototype.hasOwnProperty.call(this._parameters, parameter)) {
          uri += ";".concat(parameter);

          if (this._parameters[parameter] !== null) {
            uri += "=".concat(this._parameters[parameter]);
          }
        }
      }

      for (var header in this._headers) {
        if (Object.prototype.hasOwnProperty.call(this._headers, header)) {
          var _iteratorNormalCompletion = true;
          var _didIteratorError = false;
          var _iteratorError = undefined;

          try {
            for (var _iterator = this._headers[header][Symbol.iterator](), _step; !(_iteratorNormalCompletion = (_step = _iterator.next()).done); _iteratorNormalCompletion = true) {
              var item = _step.value;
              headers.push("".concat(header, "=").concat(item));
            }
          } catch (err) {
            _didIteratorError = true;
            _iteratorError = err;
          } finally {
            try {
              if (!_iteratorNormalCompletion && _iterator.return != null) {
                _iterator.return();
              }
            } finally {
              if (_didIteratorError) {
                throw _iteratorError;
              }
            }
          }
        }
      }

      if (headers.length > 0) {
        uri += "?".concat(headers.join('&'));
      }

      return uri;
    }
  }, {
    key: "toAor",
    value: function toAor(show_port) {
      var aor = "".concat(this._scheme, ":");

      if (this._user) {
        aor += "".concat(Utils.escapeUser(this._user), "@");
      }

      aor += this._host;

      if (show_port && (this._port || this._port === 0)) {
        aor += ":".concat(this._port);
      }

      return aor;
    }
  }, {
    key: "scheme",
    get: function get() {
      return this._scheme;
    },
    set: function set(value) {
      this._scheme = value.toLowerCase();
    }
  }, {
    key: "user",
    get: function get() {
      return this._user;
    },
    set: function set(value) {
      this._user = value;
    }
  }, {
    key: "host",
    get: function get() {
      return this._host;
    },
    set: function set(value) {
      this._host = value.toLowerCase();
    }
  }, {
    key: "port",
    get: function get() {
      return this._port;
    },
    set: function set(value) {
      this._port = value === 0 ? value : parseInt(value, 10) || null;
    }
  }]);

  return URI;
}();

}),
/* 9 */
(function(module, exports, __webpack_require__) {

"use strict";


function _typeof(obj) {
  if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") {
    _typeof = function _typeof(obj) {
      return typeof obj;
    };
  } else {
    _typeof = function _typeof(obj) {
      return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj;
    };
  }

  return _typeof(obj);
}

function _classCallCheck(instance, Constructor) {
  if (!(instance instanceof Constructor)) {
    throw new TypeError("Cannot call a class as a function");
  }
}

function _defineProperties(target, props) {
  for (var i = 0; i < props.length; i++) {
    var descriptor = props[i];
    descriptor.enumerable = descriptor.enumerable || false;
    descriptor.configurable = true;
    if ("value" in descriptor) descriptor.writable = true;
    Object.defineProperty(target, descriptor.key, descriptor);
  }
}

function _createClass(Constructor, protoProps, staticProps) {
  if (protoProps) _defineProperties(Constructor.prototype, protoProps);
  if (staticProps) _defineProperties(Constructor, staticProps);
  return Constructor;
}

function _possibleConstructorReturn(self, call) {
  if (call && (_typeof(call) === "object" || typeof call === "function")) {
    return call;
  }

  return _assertThisInitialized(self);
}

function _getPrototypeOf(o) {
  _getPrototypeOf = Object.setPrototypeOf ? Object.getPrototypeOf : function _getPrototypeOf(o) {
    return o.__proto__ || Object.getPrototypeOf(o);
  };
  return _getPrototypeOf(o);
}

function _inherits(subClass, superClass) {
  if (typeof superClass !== "function" && superClass !== null) {
    throw new TypeError("Super expression must either be null or a function");
  }

  subClass.prototype = Object.create(superClass && superClass.prototype, {
    constructor: {
      value: subClass,
      writable: true,
      configurable: true
    }
  });
  if (superClass) _setPrototypeOf(subClass, superClass);
}

function _setPrototypeOf(o, p) {
  _setPrototypeOf = Object.setPrototypeOf || function _setPrototypeOf(o, p) {
    o.__proto__ = p;
    return o;
  };

  return _setPrototypeOf(o, p);
}

function _assertThisInitialized(self) {
  if (self === void 0) {
    throw new ReferenceError("this hasn't been initialised - super() hasn't been called");
  }

  return self;
}

var EventEmitter = __webpack_require__(7).EventEmitter;

var JsSIP_C = __webpack_require__(1);

var SIPMessage = __webpack_require__(5);

var Timers = __webpack_require__(16);

var debugnict = __webpack_require__(0)('JsSIP:NonInviteClientTransaction');

var debugict = __webpack_require__(0)('JsSIP:InviteClientTransaction');

var debugact = __webpack_require__(0)('JsSIP:AckClientTransaction');

var debugnist = __webpack_require__(0)('JsSIP:NonInviteServerTransaction');

var debugist = __webpack_require__(0)('JsSIP:InviteServerTransaction');

var C = {
  // Transaction states.
  STATUS_TRYING: 1,
  STATUS_PROCEEDING: 2,
  STATUS_CALLING: 3,
  STATUS_ACCEPTED: 4,
  STATUS_COMPLETED: 5,
  STATUS_TERMINATED: 6,
  STATUS_CONFIRMED: 7,
  // Transaction types.
  NON_INVITE_CLIENT: 'nict',
  NON_INVITE_SERVER: 'nist',
  INVITE_CLIENT: 'ict',
  INVITE_SERVER: 'ist'
};

var NonInviteClientTransaction =
/*#__PURE__*/
function (_EventEmitter) {
  _inherits(NonInviteClientTransaction, _EventEmitter);

  function NonInviteClientTransaction(ua, transport, request, eventHandlers) {
    var _this;

    _classCallCheck(this, NonInviteClientTransaction);

    _this = _possibleConstructorReturn(this, _getPrototypeOf(NonInviteClientTransaction).call(this));
    _this.type = C.NON_INVITE_CLIENT;
    _this.id = "z9hG4bK".concat(Math.floor(Math.random() * 10000000));
    _this.ua = ua;
    _this.transport = transport;
    _this.request = request;
    _this.eventHandlers = eventHandlers;
    var via = "SIP/2.0/".concat(transport.via_transport);
    via += " ".concat(ua.configuration.via_host, ";branch=").concat(_this.id);

    _this.request.setHeader('via', via);

    _this.ua.newTransaction(_assertThisInitialized(_assertThisInitialized(_this)));

    return _this;
  }

  _createClass(NonInviteClientTransaction, [{
    key: "stateChanged",
    value: function stateChanged(state) {
      this.state = state;
      this.emit('stateChanged');
    }
  }, {
    key: "send",
    value: function send() {
      var _this2 = this;

      this.stateChanged(C.STATUS_TRYING);
      this.F = setTimeout(function () {
        _this2.timer_F();
      }, Timers.TIMER_F);

      if (!this.transport.send(this.request)) {
        this.onTransportError();
      }
    }
  }, {
    key: "onTransportError",
    value: function onTransportError() {
      debugnict("transport error occurred, deleting transaction ".concat(this.id));
      clearTimeout(this.F);
      clearTimeout(this.K);
      this.stateChanged(C.STATUS_TERMINATED);
      this.ua.destroyTransaction(this);
      this.eventHandlers.onTransportError();
    }
  }, {
    key: "timer_F",
    value: function timer_F() {
      debugnict("Timer F expired for transaction ".concat(this.id));
      this.stateChanged(C.STATUS_TERMINATED);
      this.ua.destroyTransaction(this);
      this.eventHandlers.onRequestTimeout();
    }
  }, {
    key: "timer_K",
    value: function timer_K() {
      this.stateChanged(C.STATUS_TERMINATED);
      this.ua.destroyTransaction(this);
    }
  }, {
    key: "receiveResponse",
    value: function receiveResponse(response) {
      var _this3 = this;

      var status_code = response.status_code;

      if (status_code < 200) {
        switch (this.state) {
          case C.STATUS_TRYING:
          case C.STATUS_PROCEEDING:
            this.stateChanged(C.STATUS_PROCEEDING);
            this.eventHandlers.onReceiveResponse(response);
            break;
        }
      } else {
        switch (this.state) {
          case C.STATUS_TRYING:
          case C.STATUS_PROCEEDING:
            this.stateChanged(C.STATUS_COMPLETED);
            clearTimeout(this.F);

            if (status_code === 408) {
              this.eventHandlers.onRequestTimeout();
            } else {
              this.eventHandlers.onReceiveResponse(response);
            }

            this.K = setTimeout(function () {
              _this3.timer_K();
            }, Timers.TIMER_K);
            break;

          case C.STATUS_COMPLETED:
            break;
        }
      }
    }
  }, {
    key: "C",
    get: function get() {
      return C;
    }
  }]);

  return NonInviteClientTransaction;
}(EventEmitter);

var InviteClientTransaction =
/*#__PURE__*/
function (_EventEmitter2) {
  _inherits(InviteClientTransaction, _EventEmitter2);

  function InviteClientTransaction(ua, transport, request, eventHandlers) {
    var _this4;

    _classCallCheck(this, InviteClientTransaction);

    _this4 = _possibleConstructorReturn(this, _getPrototypeOf(InviteClientTransaction).call(this));
    _this4.type = C.INVITE_CLIENT;
    _this4.id = "z9hG4bK".concat(Math.floor(Math.random() * 10000000));
    _this4.ua = ua;
    _this4.transport = transport;
    _this4.request = request;
    _this4.eventHandlers = eventHandlers;
    request.transaction = _assertThisInitialized(_assertThisInitialized(_this4));
    var via = "SIP/2.0/".concat(transport.via_transport);
    via += " ".concat(ua.configuration.via_host, ";branch=").concat(_this4.id);

    _this4.request.setHeader('via', via);

    _this4.ua.newTransaction(_assertThisInitialized(_assertThisInitialized(_this4)));

    return _this4;
  }

  _createClass(InviteClientTransaction, [{
    key: "stateChanged",
    value: function stateChanged(state) {
      this.state = state;
      this.emit('stateChanged');
    }
  }, {
    key: "send",
    value: function send() {
      var _this5 = this;

      this.stateChanged(C.STATUS_CALLING);
      this.B = setTimeout(function () {
        _this5.timer_B();
      }, Timers.TIMER_B);

      if (!this.transport.send(this.request)) {
        this.onTransportError();
      }
    }
  }, {
    key: "onTransportError",
    value: function onTransportError() {
      clearTimeout(this.B);
      clearTimeout(this.D);
      clearTimeout(this.M);

      if (this.state !== C.STATUS_ACCEPTED) {
        debugict("transport error occurred, deleting transaction ".concat(this.id));
        this.eventHandlers.onTransportError();
      }

      this.stateChanged(C.STATUS_TERMINATED);
      this.ua.destroyTransaction(this);
    } // RFC 6026 7.2.

  }, {
    key: "timer_M",
    value: function timer_M() {
      debugict("Timer M expired for transaction ".concat(this.id));

      if (this.state === C.STATUS_ACCEPTED) {
        clearTimeout(this.B);
        this.stateChanged(C.STATUS_TERMINATED);
        this.ua.destroyTransaction(this);
      }
    } // RFC 3261 17.1.1.

  }, {
    key: "timer_B",
    value: function timer_B() {
      debugict("Timer B expired for transaction ".concat(this.id));

      if (this.state === C.STATUS_CALLING) {
        this.stateChanged(C.STATUS_TERMINATED);
        this.ua.destroyTransaction(this);
        this.eventHandlers.onRequestTimeout();
      }
    }
  }, {
    key: "timer_D",
    value: function timer_D() {
      debugict("Timer D expired for transaction ".concat(this.id));
      clearTimeout(this.B);
      this.stateChanged(C.STATUS_TERMINATED);
      this.ua.destroyTransaction(this);
    }
  }, {
    key: "sendACK",
    value: function sendACK(response) {
      var _this6 = this;

      var ack = new SIPMessage.OutgoingRequest(JsSIP_C.ACK, this.request.ruri, this.ua, {
        'route_set': this.request.getHeaders('route'),
        'call_id': this.request.getHeader('call-id'),
        'cseq': this.request.cseq
      });
      ack.setHeader('from', this.request.getHeader('from'));
      ack.setHeader('via', this.request.getHeader('via'));
      ack.setHeader('to', response.getHeader('to'));
      this.D = setTimeout(function () {
        _this6.timer_D();
      }, Timers.TIMER_D);
      this.transport.send(ack);
    }
  }, {
    key: "cancel",
    value: function cancel(reason) {
      // Send only if a provisional response (>100) has been received.
      if (this.state !== C.STATUS_PROCEEDING) {
        return;
      }

      var cancel = new SIPMessage.OutgoingRequest(JsSIP_C.CANCEL, this.request.ruri, this.ua, {
        'route_set': this.request.getHeaders('route'),
        'call_id': this.request.getHeader('call-id'),
        'cseq': this.request.cseq
      });
      cancel.setHeader('from', this.request.getHeader('from'));
      cancel.setHeader('via', this.request.getHeader('via'));
      cancel.setHeader('to', this.request.getHeader('to'));

      if (reason) {
        cancel.setHeader('reason', reason);
      }

      this.transport.send(cancel);
    }
  }, {
    key: "receiveResponse",
    value: function receiveResponse(response) {
      var _this7 = this;

      var status_code = response.status_code;

      if (status_code >= 100 && status_code <= 199) {
        switch (this.state) {
          case C.STATUS_CALLING:
            this.stateChanged(C.STATUS_PROCEEDING);
            this.eventHandlers.onReceiveResponse(response);
            break;

          case C.STATUS_PROCEEDING:
            this.eventHandlers.onReceiveResponse(response);
            break;
        }
      } else if (status_code >= 200 && status_code <= 299) {
        switch (this.state) {
          case C.STATUS_CALLING:
          case C.STATUS_PROCEEDING:
            this.stateChanged(C.STATUS_ACCEPTED);
            this.M = setTimeout(function () {
              _this7.timer_M();
            }, Timers.TIMER_M);
            this.eventHandlers.onReceiveResponse(response);
            break;

          case C.STATUS_ACCEPTED:
            this.eventHandlers.onReceiveResponse(response);
            break;
        }
      } else if (status_code >= 300 && status_code <= 699) {
        switch (this.state) {
          case C.STATUS_CALLING:
          case C.STATUS_PROCEEDING:
            this.stateChanged(C.STATUS_COMPLETED);
            this.sendACK(response);
            this.eventHandlers.onReceiveResponse(response);
            break;

          case C.STATUS_COMPLETED:
            this.sendACK(response);
            break;
        }
      }
    }
  }, {
    key: "C",
    get: function get() {
      return C;
    }
  }]);

  return InviteClientTransaction;
}(EventEmitter);

var AckClientTransaction =
/*#__PURE__*/
function (_EventEmitter3) {
  _inherits(AckClientTransaction, _EventEmitter3);

  function AckClientTransaction(ua, transport, request, eventHandlers) {
    var _this8;

    _classCallCheck(this, AckClientTransaction);

    _this8 = _possibleConstructorReturn(this, _getPrototypeOf(AckClientTransaction).call(this));
    _this8.id = "z9hG4bK".concat(Math.floor(Math.random() * 10000000));
    _this8.transport = transport;
    _this8.request = request;
    _this8.eventHandlers = eventHandlers;
    var via = "SIP/2.0/".concat(transport.via_transport);
    via += " ".concat(ua.configuration.via_host, ";branch=").concat(_this8.id);

    _this8.request.setHeader('via', via);

    return _this8;
  }

  _createClass(AckClientTransaction, [{
    key: "send",
    value: function send() {
      if (!this.transport.send(this.request)) {
        this.onTransportError();
      }
    }
  }, {
    key: "onTransportError",
    value: function onTransportError() {
      debugact("transport error occurred for transaction ".concat(this.id));
      this.eventHandlers.onTransportError();
    }
  }, {
    key: "C",
    get: function get() {
      return C;
    }
  }]);

  return AckClientTransaction;
}(EventEmitter);

var NonInviteServerTransaction =
/*#__PURE__*/
function (_EventEmitter4) {
  _inherits(NonInviteServerTransaction, _EventEmitter4);

  function NonInviteServerTransaction(ua, transport, request) {
    var _this9;

    _classCallCheck(this, NonInviteServerTransaction);

    _this9 = _possibleConstructorReturn(this, _getPrototypeOf(NonInviteServerTransaction).call(this));
    _this9.type = C.NON_INVITE_SERVER;
    _this9.id = request.via_branch;
    _this9.ua = ua;
    _this9.transport = transport;
    _this9.request = request;
    _this9.last_response = '';
    request.server_transaction = _assertThisInitialized(_assertThisInitialized(_this9));
    _this9.state = C.STATUS_TRYING;
    ua.newTransaction(_assertThisInitialized(_assertThisInitialized(_this9)));
    return _this9;
  }

  _createClass(NonInviteServerTransaction, [{
    key: "stateChanged",
    value: function stateChanged(state) {
      this.state = state;
      this.emit('stateChanged');
    }
  }, {
    key: "timer_J",
    value: function timer_J() {
      debugnist("Timer J expired for transaction ".concat(this.id));
      this.stateChanged(C.STATUS_TERMINATED);
      this.ua.destroyTransaction(this);
    }
  }, {
    key: "onTransportError",
    value: function onTransportError() {
      if (!this.transportError) {
        this.transportError = true;
        debugnist("transport error occurred, deleting transaction ".concat(this.id));
        clearTimeout(this.J);
        this.stateChanged(C.STATUS_TERMINATED);
        this.ua.destroyTransaction(this);
      }
    }
  }, {
    key: "receiveResponse",
    value: function receiveResponse(status_code, response, onSuccess, onFailure) {
      var _this10 = this;

      if (status_code === 100) {
        /* RFC 4320 4.1
         * 'A SIP element MUST NOT
         * send any provisional response with a
         * Status-Code other than 100 to a non-INVITE request.'
         */
        switch (this.state) {
          case C.STATUS_TRYING:
            this.stateChanged(C.STATUS_PROCEEDING);

            if (!this.transport.send(response)) {
              this.onTransportError();
            }

            break;

          case C.STATUS_PROCEEDING:
            this.last_response = response;

            if (!this.transport.send(response)) {
              this.onTransportError();

              if (onFailure) {
                onFailure();
              }
            } else if (onSuccess) {
              onSuccess();
            }

            break;
        }
      } else if (status_code >= 200 && status_code <= 699) {
        switch (this.state) {
          case C.STATUS_TRYING:
          case C.STATUS_PROCEEDING:
            this.stateChanged(C.STATUS_COMPLETED);
            this.last_response = response;
            this.J = setTimeout(function () {
              _this10.timer_J();
            }, Timers.TIMER_J);

            if (!this.transport.send(response)) {
              this.onTransportError();

              if (onFailure) {
                onFailure();
              }
            } else if (onSuccess) {
              onSuccess();
            }

            break;

          case C.STATUS_COMPLETED:
            break;
        }
      }
    }
  }, {
    key: "C",
    get: function get() {
      return C;
    }
  }]);

  return NonInviteServerTransaction;
}(EventEmitter);

var InviteServerTransaction =
/*#__PURE__*/
function (_EventEmitter5) {
  _inherits(InviteServerTransaction, _EventEmitter5);

  function InviteServerTransaction(ua, transport, request) {
    var _this11;

    _classCallCheck(this, InviteServerTransaction);

    _this11 = _possibleConstructorReturn(this, _getPrototypeOf(InviteServerTransaction).call(this));
    _this11.type = C.INVITE_SERVER;
    _this11.id = request.via_branch;
    _this11.ua = ua;
    _this11.transport = transport;
    _this11.request = request;
    _this11.last_response = '';
    request.server_transaction = _assertThisInitialized(_assertThisInitialized(_this11));
    _this11.state = C.STATUS_PROCEEDING;
    ua.newTransaction(_assertThisInitialized(_assertThisInitialized(_this11)));
    _this11.resendProvisionalTimer = null;
    request.reply(100);
    return _this11;
  }

  _createClass(InviteServerTransaction, [{
    key: "stateChanged",
    value: function stateChanged(state) {
      this.state = state;
      this.emit('stateChanged');
    }
  }, {
    key: "timer_H",
    value: function timer_H() {
      debugist("Timer H expired for transaction ".concat(this.id));

      if (this.state === C.STATUS_COMPLETED) {
        debugist('ACK not received, dialog will be terminated');
      }

      this.stateChanged(C.STATUS_TERMINATED);
      this.ua.destroyTransaction(this);
    }
  }, {
    key: "timer_I",
    value: function timer_I() {
      this.stateChanged(C.STATUS_TERMINATED);
    } // RFC 6026 7.1.

  }, {
    key: "timer_L",
    value: function timer_L() {
      debugist("Timer L expired for transaction ".concat(this.id));

      if (this.state === C.STATUS_ACCEPTED) {
        this.stateChanged(C.STATUS_TERMINATED);
        this.ua.destroyTransaction(this);
      }
    }
  }, {
    key: "onTransportError",
    value: function onTransportError() {
      if (!this.transportError) {
        this.transportError = true;
        debugist("transport error occurred, deleting transaction ".concat(this.id));

        if (this.resendProvisionalTimer !== null) {
          clearInterval(this.resendProvisionalTimer);
          this.resendProvisionalTimer = null;
        }

        clearTimeout(this.L);
        clearTimeout(this.H);
        clearTimeout(this.I);
        this.stateChanged(C.STATUS_TERMINATED);
        this.ua.destroyTransaction(this);
      }
    }
  }, {
    key: "resend_provisional",
    value: function resend_provisional() {
      if (!this.transport.send(this.last_response)) {
        this.onTransportError();
      }
    } // INVITE Server Transaction RFC 3261 17.2.1.

  }, {
    key: "receiveResponse",
    value: function receiveResponse(status_code, response, onSuccess, onFailure) {
      var _this12 = this;

      if (status_code >= 100 && status_code <= 199) {
        switch (this.state) {
          case C.STATUS_PROCEEDING:
            if (!this.transport.send(response)) {
              this.onTransportError();
            }

            this.last_response = response;
            break;
        }
      }

      if (status_code > 100 && status_code <= 199 && this.state === C.STATUS_PROCEEDING) {
        // Trigger the resendProvisionalTimer only for the first non 100 provisional response.
        if (this.resendProvisionalTimer === null) {
          this.resendProvisionalTimer = setInterval(function () {
            _this12.resend_provisional();
          }, Timers.PROVISIONAL_RESPONSE_INTERVAL);
        }
      } else if (status_code >= 200 && status_code <= 299) {
        switch (this.state) {
          case C.STATUS_PROCEEDING:
            this.stateChanged(C.STATUS_ACCEPTED);
            this.last_response = response;
            this.L = setTimeout(function () {
              _this12.timer_L();
            }, Timers.TIMER_L);

            if (this.resendProvisionalTimer !== null) {
              clearInterval(this.resendProvisionalTimer);
              this.resendProvisionalTimer = null;
            }

          /* falls through */

          case C.STATUS_ACCEPTED:
            // Note that this point will be reached for proceeding this.state also.
            if (!this.transport.send(response)) {
              this.onTransportError();

              if (onFailure) {
                onFailure();
              }
            } else if (onSuccess) {
              onSuccess();
            }

            break;
        }
      } else if (status_code >= 300 && status_code <= 699) {
        switch (this.state) {
          case C.STATUS_PROCEEDING:
            if (this.resendProvisionalTimer !== null) {
              clearInterval(this.resendProvisionalTimer);
              this.resendProvisionalTimer = null;
            }

            if (!this.transport.send(response)) {
              this.onTransportError();

              if (onFailure) {
                onFailure();
              }
            } else {
              this.stateChanged(C.STATUS_COMPLETED);
              this.H = setTimeout(function () {
                _this12.timer_H();
              }, Timers.TIMER_H);

              if (onSuccess) {
                onSuccess();
              }
            }

            break;
        }
      }
    }
  }, {
    key: "C",
    get: function get() {
      return C;
    }
  }]);

  return InviteServerTransaction;
}(EventEmitter);
/**
 * INVITE:
 *  _true_ if retransmission
 *  _false_ new request
 *
 * ACK:
 *  _true_  ACK to non2xx response
 *  _false_ ACK must be passed to TU (accepted state)
 *          ACK to 2xx response
 *
 * CANCEL:
 *  _true_  no matching invite transaction
 *  _false_ matching invite transaction and no final response sent
 *
 * OTHER:
 *  _true_  retransmission
 *  _false_ new request
 */


function checkTransaction(_ref, request) {
  var _transactions = _ref._transactions;
  var tr;

  switch (request.method) {
    case JsSIP_C.INVITE:
      tr = _transactions.ist[request.via_branch];

      if (tr) {
        switch (tr.state) {
          case C.STATUS_PROCEEDING:
            tr.transport.send(tr.last_response);
            break;
          // RFC 6026 7.1 Invite retransmission.
          // Received while in C.STATUS_ACCEPTED state. Absorb it.

          case C.STATUS_ACCEPTED:
            break;
        }

        return true;
      }

      break;

    case JsSIP_C.ACK:
      tr = _transactions.ist[request.via_branch]; // RFC 6026 7.1.

      if (tr) {
        if (tr.state === C.STATUS_ACCEPTED) {
          return false;
        } else if (tr.state === C.STATUS_COMPLETED) {
          tr.state = C.STATUS_CONFIRMED;
          tr.I = setTimeout(function () {
            tr.timer_I();
          }, Timers.TIMER_I);
          return true;
        }
      } // ACK to 2XX Response.
      else {
          return false;
        }

      break;

    case JsSIP_C.CANCEL:
      tr = _transactions.ist[request.via_branch];

      if (tr) {
        request.reply_sl(200);

        if (tr.state === C.STATUS_PROCEEDING) {
          return false;
        } else {
          return true;
        }
      } else {
        request.reply_sl(481);
        return true;
      }

    default:
      // Non-INVITE Server Transaction RFC 3261 17.2.2.
      tr = _transactions.nist[request.via_branch];

      if (tr) {
        switch (tr.state) {
          case C.STATUS_TRYING:
            break;

          case C.STATUS_PROCEEDING:
          case C.STATUS_COMPLETED:
            tr.transport.send(tr.last_response);
            break;
        }

        return true;
      }

      break;
  }
}

module.exports = {
  C: C,
  NonInviteClientTransaction: NonInviteClientTransaction,
  InviteClientTransaction: InviteClientTransaction,
  AckClientTransaction: AckClientTransaction,
  NonInviteServerTransaction: NonInviteServerTransaction,
  InviteServerTransaction: InviteServerTransaction,
  checkTransaction: checkTransaction
};

}),
/* 10 */
(function(module, exports, __webpack_require__) {

"use strict";


function _classCallCheck(instance, Constructor) {
  if (!(instance instanceof Constructor)) {
    throw new TypeError("Cannot call a class as a function");
  }
}

function _defineProperties(target, props) {
  for (var i = 0; i < props.length; i++) {
    var descriptor = props[i];
    descriptor.enumerable = descriptor.enumerable || false;
    descriptor.configurable = true;
    if ("value" in descriptor) descriptor.writable = true;
    Object.defineProperty(target, descriptor.key, descriptor);
  }
}

function _createClass(Constructor, protoProps, staticProps) {
  if (protoProps) _defineProperties(Constructor.prototype, protoProps);
  if (staticProps) _defineProperties(Constructor, staticProps);
  return Constructor;
}

var JsSIP_C = __webpack_require__(1);

var DigestAuthentication = __webpack_require__(31);

var Transactions = __webpack_require__(9);

var debug = __webpack_require__(0)('JsSIP:RequestSender'); // Default event handlers.


var EventHandlers = {
  onRequestTimeout: function onRequestTimeout() {},
  onTransportError: function onTransportError() {},
  onReceiveResponse: function onReceiveResponse() {},
  onAuthenticated: function onAuthenticated() {}
};

module.exports =
/*#__PURE__*/
function () {
  function RequestSender(ua, request, eventHandlers) {
    _classCallCheck(this, RequestSender);

    this._ua = ua;
    this._eventHandlers = eventHandlers;
    this._method = request.method;
    this._request = request;
    this._auth = null;
    this._challenged = false;
    this._staled = false; // Define the undefined handlers.

    for (var handler in EventHandlers) {
      if (Object.prototype.hasOwnProperty.call(EventHandlers, handler)) {
        if (!this._eventHandlers[handler]) {
          this._eventHandlers[handler] = EventHandlers[handler];
        }
      }
    } // If ua is in closing process or even closed just allow sending Bye and ACK.


    if (ua.status === ua.C.STATUS_USER_CLOSED && (this._method !== JsSIP_C.BYE || this._method !== JsSIP_C.ACK)) {
      this._eventHandlers.onTransportError();
    }
  }
  /**
  * Create the client transaction and send the message.
  */


  _createClass(RequestSender, [{
    key: "send",
    value: function send() {
      var _this = this;

      var eventHandlers = {
        onRequestTimeout: function onRequestTimeout() {
          _this._eventHandlers.onRequestTimeout();
        },
        onTransportError: function onTransportError() {
          _this._eventHandlers.onTransportError();
        },
        onReceiveResponse: function onReceiveResponse(response) {
          _this._receiveResponse(response);
        }
      };

      switch (this._method) {
        case 'INVITE':
          this.clientTransaction = new Transactions.InviteClientTransaction(this._ua, this._ua.transport, this._request, eventHandlers);
          break;

        case 'ACK':
          this.clientTransaction = new Transactions.AckClientTransaction(this._ua, this._ua.transport, this._request, eventHandlers);
          break;

        default:
          this.clientTransaction = new Transactions.NonInviteClientTransaction(this._ua, this._ua.transport, this._request, eventHandlers);
      }

      this.clientTransaction.send();
    }
    /**
    * Called from client transaction when receiving a correct response to the request.
    * Authenticate request if needed or pass the response back to the applicant.
    */

  }, {
    key: "_receiveResponse",
    value: function _receiveResponse(response) {
      var challenge;
      var authorization_header_name;
      var status_code = response.status_code;
      /*
      * Authentication
      * Authenticate once. _challenged_ flag used to avoid infinite authentications.
      */

      if ((status_code === 401 || status_code === 407) && (this._ua.configuration.password !== null || this._ua.configuration.ha1 !== null)) {
        // Get and parse the appropriate WWW-Authenticate or Proxy-Authenticate header.
        if (response.status_code === 401) {
          challenge = response.parseHeader('www-authenticate');
          authorization_header_name = 'authorization';
        } else {
          challenge = response.parseHeader('proxy-authenticate');
          authorization_header_name = 'proxy-authorization';
        } // Verify it seems a valid challenge.


        if (!challenge) {
          debug("".concat(response.status_code, " with wrong or missing challenge, cannot authenticate"));

          this._eventHandlers.onReceiveResponse(response);

          return;
        }

        if (!this._challenged || !this._staled && challenge.stale === true) {
          if (!this._auth) {
            this._auth = new DigestAuthentication({
              username: this._ua.configuration.authorization_user,
              password: this._ua.configuration.password,
              realm: this._ua.configuration.realm,
              ha1: this._ua.configuration.ha1
            });
          } // Verify that the challenge is really valid.


          if (!this._auth.authenticate(this._request, challenge)) {
            this._eventHandlers.onReceiveResponse(response);

            return;
          }

          this._challenged = true; // Update ha1 and realm in the UA.

          this._ua.set('realm', this._auth.get('realm'));

          this._ua.set('ha1', this._auth.get('ha1'));

          if (challenge.stale) {
            this._staled = true;
          }

          this._request = this._request.clone();
          this._request.cseq += 1;

          this._request.setHeader('cseq', "".concat(this._request.cseq, " ").concat(this._method));

          this._request.setHeader(authorization_header_name, this._auth.toString());

          this._eventHandlers.onAuthenticated(this._request);

          this.send();
        } else {
          this._eventHandlers.onReceiveResponse(response);
        }
      } else {
        this._eventHandlers.onReceiveResponse(response);
      }
    }
  }]);

  return RequestSender;
}();

}),
/* 11 */
(function(module, exports, __webpack_require__) {

"use strict";


function _classCallCheck(instance, Constructor) {
  if (!(instance instanceof Constructor)) {
    throw new TypeError("Cannot call a class as a function");
  }
}

function _defineProperties(target, props) {
  for (var i = 0; i < props.length; i++) {
    var descriptor = props[i];
    descriptor.enumerable = descriptor.enumerable || false;
    descriptor.configurable = true;
    if ("value" in descriptor) descriptor.writable = true;
    Object.defineProperty(target, descriptor.key, descriptor);
  }
}

function _createClass(Constructor, protoProps, staticProps) {
  if (protoProps) _defineProperties(Constructor.prototype, protoProps);
  if (staticProps) _defineProperties(Constructor, staticProps);
  return Constructor;
}

var URI = __webpack_require__(8);

var Grammar = __webpack_require__(3);

module.exports =
/*#__PURE__*/
function () {
  _createClass(NameAddrHeader, null, [{
    key: "parse",

    /**
     * Parse the given string and returns a NameAddrHeader instance or undefined if
     * it is an invalid NameAddrHeader.
     */
    value: function parse(name_addr_header) {
      name_addr_header = Grammar.parse(name_addr_header, 'Name_Addr_Header');

      if (name_addr_header !== -1) {
        return name_addr_header;
      } else {
        return undefined;
      }
    }
  }]);

  function NameAddrHeader(uri, display_name, parameters) {
    _classCallCheck(this, NameAddrHeader); // Checks.


    if (!uri || !(uri instanceof URI)) {
      throw new TypeError('missing or invalid "uri" parameter');
    } // Initialize parameters.


    this._uri = uri;
    this._parameters = {};
    this._display_name = display_name;

    for (var param in parameters) {
      if (Object.prototype.hasOwnProperty.call(parameters, param)) {
        this.setParam(param, parameters[param]);
      }
    }
  }

  _createClass(NameAddrHeader, [{
    key: "setParam",
    value: function setParam(key, value) {
      if (key) {
        this._parameters[key.toLowerCase()] = typeof value === 'undefined' || value === null ? null : value.toString();
      }
    }
  }, {
    key: "getParam",
    value: function getParam(key) {
      if (key) {
        return this._parameters[key.toLowerCase()];
      }
    }
  }, {
    key: "hasParam",
    value: function hasParam(key) {
      if (key) {
        return this._parameters.hasOwnProperty(key.toLowerCase()) && true || false;
      }
    }
  }, {
    key: "deleteParam",
    value: function deleteParam(parameter) {
      parameter = parameter.toLowerCase();

      if (this._parameters.hasOwnProperty(parameter)) {
        var value = this._parameters[parameter];
        delete this._parameters[parameter];
        return value;
      }
    }
  }, {
    key: "clearParams",
    value: function clearParams() {
      this._parameters = {};
    }
  }, {
    key: "clone",
    value: function clone() {
      return new NameAddrHeader(this._uri.clone(), this._display_name, JSON.parse(JSON.stringify(this._parameters)));
    }
  }, {
    key: "toString",
    value: function toString() {
      var body = this._display_name || this._display_name === 0 ? "\"".concat(this._display_name, "\" ") : '';
      body += "<".concat(this._uri.toString(), ">");

      for (var parameter in this._parameters) {
        if (Object.prototype.hasOwnProperty.call(this._parameters, parameter)) {
          body += ";".concat(parameter);

          if (this._parameters[parameter] !== null) {
            body += "=".concat(this._parameters[parameter]);
          }
        }
      }

      return body;
    }
  }, {
    key: "uri",
    get: function get() {
      return this._uri;
    }
  }, {
    key: "display_name",
    get: function get() {
      return this._display_name;
    },
    set: function set(value) {
      this._display_name = value === 0 ? '0' : value;
    }
  }]);

  return NameAddrHeader;
}();

}),
/* 12 */
(function(module, exports) {

module.exports = {"_from":"jssip","_id":"jssip@3.3.3","_inBundle":false,"_integrity":"sha512-SL+JkaY3w0n5Bbg7/NL/3wPTcjnkGM5IKUm6VRYYRyQTDiTR0ezLeqGjWACK2O/brT5l2QfR46AZ1iXMSLl4Dg==","_location":"/jssip","_phantomChildren":{"ms":"2.1.1"},"_requested":{"type":"tag","registry":true,"raw":"jssip","name":"jssip","escapedName":"jssip","rawSpec":"","saveSpec":null,"fetchSpec":"latest"},"_requiredBy":["#USER","/"],"_resolved":"https://registry.npmjs.org/jssip/-/jssip-3.3.3.tgz","_shasum":"d111efe06c926bf6752726668cf9e35f0c2f94fa","_spec":"jssip","_where":"/Users/entronica/eclipse-workspace/phone-js","author":{"name":"José Luis Millán","email":"jmillan@aliax.net","url":"https://github.com/jmillan"},"bugs":{"url":"https://github.com/versatica/JsSIP/issues"},"bundleDependencies":false,"contributors":[{"name":"Iñaki Baz Castillo","email":"ibc@aliax.net","url":"https://github.com/ibc"},{"name":"Saúl Ibarra Corretgé","email":"saghul@gmail.com","url":"https://github.com/saghul"}],"dependencies":{"debug":"^4.1.1","events":"^3.0.0","sdp-transform":"^2.7.0"},"deprecated":false,"description":"the Javascript SIP library","devDependencies":{"@babel/core":"^7.2.2","@babel/preset-env":"^7.2.3","ansi-colors":"^3.2.3","browserify":"^16.2.3","eslint":"^5.11.1","fancy-log":"^1.3.3","gulp":"^4.0.0","gulp-babel":"^8.0.0","gulp-eslint":"^5.0.0","gulp-expect-file":"^1.0.0","gulp-header":"^2.0.7","gulp-nodeunit-runner":"^0.2.2","gulp-plumber":"^1.2.1","gulp-rename":"^1.4.0","gulp-uglify-es":"^1.0.4","pegjs":"^0.7.0","vinyl-buffer":"^1.0.1","vinyl-source-stream":"^2.0.0"},"homepage":"https://jssip.net","keywords":["sip","websocket","webrtc","node","browser","library"],"license":"MIT","main":"lib-es5/JsSIP.js","name":"jssip","repository":{"type":"git","url":"git+https://github.com/versatica/JsSIP.git"},"scripts":{"prepublishOnly":"gulp babel","test":"gulp test"},"title":"JsSIP","version":"3.3.3"}

}),
/* 13 */
(function(module, exports, __webpack_require__) {

var parser = __webpack_require__(27);

var writer = __webpack_require__(28);

exports.write = writer;
exports.parse = parser.parse;
exports.parseFmtpConfig = parser.parseFmtpConfig;
exports.parseParams = parser.parseParams;
exports.parsePayloads = parser.parsePayloads;
exports.parseRemoteCandidates = parser.parseRemoteCandidates;
exports.parseImageAttributes = parser.parseImageAttributes;
exports.parseSimulcastStreamList = parser.parseSimulcastStreamList;

}),
/* 14 */
(function(module, exports) {

var grammar = module.exports = {
  v: [{
    name: 'version',
    reg: /^(\d*)$/
  }],
  o: [{
    //o=- 20518 0 IN IP4 203.0.113.1
    // NB: sessionId will be a String in most cases because it is huge
    name: 'origin',
    reg: /^(\S*) (\d*) (\d*) (\S*) IP(\d) (\S*)/,
    names: ['username', 'sessionId', 'sessionVersion', 'netType', 'ipVer', 'address'],
    format: '%s %s %d %s IP%d %s'
  }],
  // default parsing of these only (though some of these feel outdated)
  s: [{
    name: 'name'
  }],
  i: [{
    name: 'description'
  }],
  u: [{
    name: 'uri'
  }],
  e: [{
    name: 'email'
  }],
  p: [{
    name: 'phone'
  }],
  z: [{
    name: 'timezones'
  }],
  // TODO: this one can actually be parsed properly..
  r: [{
    name: 'repeats'
  }],
  // TODO: this one can also be parsed properly
  //k: [{}], // outdated thing ignored
  t: [{
    //t=0 0
    name: 'timing',
    reg: /^(\d*) (\d*)/,
    names: ['start', 'stop'],
    format: '%d %d'
  }],
  c: [{
    //c=IN IP4 10.47.197.26
    name: 'connection',
    reg: /^IN IP(\d) (\S*)/,
    names: ['version', 'ip'],
    format: 'IN IP%d %s'
  }],
  b: [{
    //b=AS:4000
    push: 'bandwidth',
    reg: /^(TIAS|AS|CT|RR|RS):(\d*)/,
    names: ['type', 'limit'],
    format: '%s:%s'
  }],
  m: [{
    //m=video 51744 RTP/AVP 126 97 98 34 31
    // NB: special - pushes to session
    // TODO: rtp/fmtp should be filtered by the payloads found here?
    reg: /^(\w*) (\d*) ([\w\/]*)(?: (.*))?/,
    names: ['type', 'port', 'protocol', 'payloads'],
    format: '%s %d %s %s'
  }],
  a: [{
    //a=rtpmap:110 opus/48000/2
    push: 'rtp',
    reg: /^rtpmap:(\d*) ([\w\-\.]*)(?:\s*\/(\d*)(?:\s*\/(\S*))?)?/,
    names: ['payload', 'codec', 'rate', 'encoding'],
    format: function (o) {
      return o.encoding ? 'rtpmap:%d %s/%s/%s' : o.rate ? 'rtpmap:%d %s/%s' : 'rtpmap:%d %s';
    }
  }, {
    //a=fmtp:108 profile-level-id=24;object=23;bitrate=64000
    //a=fmtp:111 minptime=10; useinbandfec=1
    push: 'fmtp',
    reg: /^fmtp:(\d*) ([\S| ]*)/,
    names: ['payload', 'config'],
    format: 'fmtp:%d %s'
  }, {
    //a=control:streamid=0
    name: 'control',
    reg: /^control:(.*)/,
    format: 'control:%s'
  }, {
    //a=rtcp:65179 IN IP4 193.84.77.194
    name: 'rtcp',
    reg: /^rtcp:(\d*)(?: (\S*) IP(\d) (\S*))?/,
    names: ['port', 'netType', 'ipVer', 'address'],
    format: function (o) {
      return o.address != null ? 'rtcp:%d %s IP%d %s' : 'rtcp:%d';
    }
  }, {
    //a=rtcp-fb:98 trr-int 100
    push: 'rtcpFbTrrInt',
    reg: /^rtcp-fb:(\*|\d*) trr-int (\d*)/,
    names: ['payload', 'value'],
    format: 'rtcp-fb:%d trr-int %d'
  }, {
    //a=rtcp-fb:98 nack rpsi
    push: 'rtcpFb',
    reg: /^rtcp-fb:(\*|\d*) ([\w-_]*)(?: ([\w-_]*))?/,
    names: ['payload', 'type', 'subtype'],
    format: function (o) {
      return o.subtype != null ? 'rtcp-fb:%s %s %s' : 'rtcp-fb:%s %s';
    }
  }, {
    //a=extmap:2 urn:ietf:params:rtp-hdrext:toffset
    //a=extmap:1/recvonly URI-gps-string
    push: 'ext',
    reg: /^extmap:(\d+)(?:\/(\w+))? (\S*)(?: (\S*))?/,
    names: ['value', 'direction', 'uri', 'config'],
    format: function (o) {
      return 'extmap:%d' + (o.direction ? '/%s' : '%v') + ' %s' + (o.config ? ' %s' : '');
    }
  }, {
    //a=crypto:1 AES_CM_128_HMAC_SHA1_80 inline:PS1uQCVeeCFCanVmcjkpPywjNWhcYD0mXXtxaVBR|2^20|1:32
    push: 'crypto',
    reg: /^crypto:(\d*) ([\w_]*) (\S*)(?: (\S*))?/,
    names: ['id', 'suite', 'config', 'sessionConfig'],
    format: function (o) {
      return o.sessionConfig != null ? 'crypto:%d %s %s %s' : 'crypto:%d %s %s';
    }
  }, {
    //a=setup:actpass
    name: 'setup',
    reg: /^setup:(\w*)/,
    format: 'setup:%s'
  }, {
    //a=mid:1
    name: 'mid',
    reg: /^mid:([^\s]*)/,
    format: 'mid:%s'
  }, {
    //a=msid:0c8b064d-d807-43b4-b434-f92a889d8587 98178685-d409-46e0-8e16-7ef0db0db64a
    name: 'msid',
    reg: /^msid:(.*)/,
    format: 'msid:%s'
  }, {
    //a=ptime:20
    name: 'ptime',
    reg: /^ptime:(\d*)/,
    format: 'ptime:%d'
  }, {
    //a=maxptime:60
    name: 'maxptime',
    reg: /^maxptime:(\d*)/,
    format: 'maxptime:%d'
  }, {
    //a=sendrecv
    name: 'direction',
    reg: /^(sendrecv|recvonly|sendonly|inactive)/
  }, {
    //a=ice-lite
    name: 'icelite',
    reg: /^(ice-lite)/
  }, {
    //a=ice-ufrag:F7gI
    name: 'iceUfrag',
    reg: /^ice-ufrag:(\S*)/,
    format: 'ice-ufrag:%s'
  }, {
    //a=ice-pwd:x9cml/YzichV2+XlhiMu8g
    name: 'icePwd',
    reg: /^ice-pwd:(\S*)/,
    format: 'ice-pwd:%s'
  }, {
    //a=fingerprint:SHA-1 00:11:22:33:44:55:66:77:88:99:AA:BB:CC:DD:EE:FF:00:11:22:33
    name: 'fingerprint',
    reg: /^fingerprint:(\S*) (\S*)/,
    names: ['type', 'hash'],
    format: 'fingerprint:%s %s'
  }, {
    //a=candidate:0 1 UDP 2113667327 203.0.113.1 54400 typ host
    //a=candidate:1162875081 1 udp 2113937151 192.168.34.75 60017 typ host generation 0 network-id 3 network-cost 10
    //a=candidate:3289912957 2 udp 1845501695 193.84.77.194 60017 typ srflx raddr 192.168.34.75 rport 60017 generation 0 network-id 3 network-cost 10
    //a=candidate:229815620 1 tcp 1518280447 192.168.150.19 60017 typ host tcptype active generation 0 network-id 3 network-cost 10
    //a=candidate:3289912957 2 tcp 1845501695 193.84.77.194 60017 typ srflx raddr 192.168.34.75 rport 60017 tcptype passive generation 0 network-id 3 network-cost 10
    push: 'candidates',
    reg: /^candidate:(\S*) (\d*) (\S*) (\d*) (\S*) (\d*) typ (\S*)(?: raddr (\S*) rport (\d*))?(?: tcptype (\S*))?(?: generation (\d*))?(?: network-id (\d*))?(?: network-cost (\d*))?/,
    names: ['foundation', 'component', 'transport', 'priority', 'ip', 'port', 'type', 'raddr', 'rport', 'tcptype', 'generation', 'network-id', 'network-cost'],
    format: function (o) {
      var str = 'candidate:%s %d %s %d %s %d typ %s';
      str += o.raddr != null ? ' raddr %s rport %d' : '%v%v'; // NB: candidate has three optional chunks, so %void middles one if it's missing

      str += o.tcptype != null ? ' tcptype %s' : '%v';

      if (o.generation != null) {
        str += ' generation %d';
      }

      str += o['network-id'] != null ? ' network-id %d' : '%v';
      str += o['network-cost'] != null ? ' network-cost %d' : '%v';
      return str;
    }
  }, {
    //a=end-of-candidates (keep after the candidates line for readability)
    name: 'endOfCandidates',
    reg: /^(end-of-candidates)/
  }, {
    //a=remote-candidates:1 203.0.113.1 54400 2 203.0.113.1 54401 ...
    name: 'remoteCandidates',
    reg: /^remote-candidates:(.*)/,
    format: 'remote-candidates:%s'
  }, {
    //a=ice-options:google-ice
    name: 'iceOptions',
    reg: /^ice-options:(\S*)/,
    format: 'ice-options:%s'
  }, {
    //a=ssrc:2566107569 cname:t9YU8M1UxTF8Y1A1
    push: 'ssrcs',
    reg: /^ssrc:(\d*) ([\w_-]*)(?::(.*))?/,
    names: ['id', 'attribute', 'value'],
    format: function (o) {
      var str = 'ssrc:%d';

      if (o.attribute != null) {
        str += ' %s';

        if (o.value != null) {
          str += ':%s';
        }
      }

      return str;
    }
  }, {
    //a=ssrc-group:FEC 1 2
    //a=ssrc-group:FEC-FR 3004364195 1080772241
    push: 'ssrcGroups',
    // token-char = %x21 / %x23-27 / %x2A-2B / %x2D-2E / %x30-39 / %x41-5A / %x5E-7E
    reg: /^ssrc-group:([\x21\x23\x24\x25\x26\x27\x2A\x2B\x2D\x2E\w]*) (.*)/,
    names: ['semantics', 'ssrcs'],
    format: 'ssrc-group:%s %s'
  }, {
    //a=msid-semantic: WMS Jvlam5X3SX1OP6pn20zWogvaKJz5Hjf9OnlV
    name: 'msidSemantic',
    reg: /^msid-semantic:\s?(\w*) (\S*)/,
    names: ['semantic', 'token'],
    format: 'msid-semantic: %s %s' // space after ':' is not accidental

  }, {
    //a=group:BUNDLE audio video
    push: 'groups',
    reg: /^group:(\w*) (.*)/,
    names: ['type', 'mids'],
    format: 'group:%s %s'
  }, {
    //a=rtcp-mux
    name: 'rtcpMux',
    reg: /^(rtcp-mux)/
  }, {
    //a=rtcp-rsize
    name: 'rtcpRsize',
    reg: /^(rtcp-rsize)/
  }, {
    //a=sctpmap:5000 webrtc-datachannel 1024
    name: 'sctpmap',
    reg: /^sctpmap:([\w_\/]*) (\S*)(?: (\S*))?/,
    names: ['sctpmapNumber', 'app', 'maxMessageSize'],
    format: function (o) {
      return o.maxMessageSize != null ? 'sctpmap:%s %s %s' : 'sctpmap:%s %s';
    }
  }, {
    //a=x-google-flag:conference
    name: 'xGoogleFlag',
    reg: /^x-google-flag:([^\s]*)/,
    format: 'x-google-flag:%s'
  }, {
    //a=rid:1 send max-width=1280;max-height=720;max-fps=30;depend=0
    push: 'rids',
    reg: /^rid:([\d\w]+) (\w+)(?: ([\S| ]*))?/,
    names: ['id', 'direction', 'params'],
    format: function (o) {
      return o.params ? 'rid:%s %s %s' : 'rid:%s %s';
    }
  }, {
    //a=imageattr:97 send [x=800,y=640,sar=1.1,q=0.6] [x=480,y=320] recv [x=330,y=250]
    //a=imageattr:* send [x=800,y=640] recv *
    //a=imageattr:100 recv [x=320,y=240]
    push: 'imageattrs',
    reg: new RegExp( //a=imageattr:97
    '^imageattr:(\\d+|\\*)' + //send [x=800,y=640,sar=1.1,q=0.6] [x=480,y=320]
    '[\\s\\t]+(send|recv)[\\s\\t]+(\\*|\\[\\S+\\](?:[\\s\\t]+\\[\\S+\\])*)' + //recv [x=330,y=250]
    '(?:[\\s\\t]+(recv|send)[\\s\\t]+(\\*|\\[\\S+\\](?:[\\s\\t]+\\[\\S+\\])*))?'),
    names: ['pt', 'dir1', 'attrs1', 'dir2', 'attrs2'],
    format: function (o) {
      return 'imageattr:%s %s %s' + (o.dir2 ? ' %s %s' : '');
    }
  }, {
    //a=simulcast:send 1,2,3;~4,~5 recv 6;~7,~8
    //a=simulcast:recv 1;4,5 send 6;7
    name: 'simulcast',
    reg: new RegExp( //a=simulcast:
    '^simulcast:' + //send 1,2,3;~4,~5
    '(send|recv) ([a-zA-Z0-9\\-_~;,]+)' + //space + recv 6;~7,~8
    '(?:\\s?(send|recv) ([a-zA-Z0-9\\-_~;,]+))?' + //end
    '$'),
    names: ['dir1', 'list1', 'dir2', 'list2'],
    format: function (o) {
      return 'simulcast:%s %s' + (o.dir2 ? ' %s %s' : '');
    }
  }, {
    //Old simulcast draft 03 (implemented by Firefox)
    //  https://tools.ietf.org/html/draft-ietf-mmusic-sdp-simulcast-03
    //a=simulcast: recv pt=97;98 send pt=97
    //a=simulcast: send rid=5;6;7 paused=6,7
    name: 'simulcast_03',
    reg: /^simulcast:[\s\t]+([\S+\s\t]+)$/,
    names: ['value'],
    format: 'simulcast: %s'
  }, {
    //a=framerate:25
    //a=framerate:29.97
    name: 'framerate',
    reg: /^framerate:(\d+(?:$|\.\d+))/,
    format: 'framerate:%s'
  }, {
    // RFC4570
    //a=source-filter: incl IN IP4 239.5.2.31 10.1.15.5
    name: 'sourceFilter',
    reg: /^source-filter: *(excl|incl) (\S*) (IP4|IP6|\*) (\S*) (.*)/,
    names: ['filterMode', 'netType', 'addressTypes', 'destAddress', 'srcList'],
    format: 'source-filter: %s %s %s %s %s'
  }, {
    //a=bundle-only
    name: 'bundleOnly',
    reg: /^(bundle-only)/
  }, {
    //a=label:1
    name: 'label',
    reg: /^label:(.+)/,
    format: 'label:%s'
  }, {
    // RFC version 26 for SCTP over DTLS
    // https://tools.ietf.org/html/draft-ietf-mmusic-sctp-sdp-26#section-5
    name: 'sctpPort',
    reg: /^sctp-port:(\d+)$/,
    format: 'sctp-port:%s'
  }, {
    // RFC version 26 for SCTP over DTLS
    // https://tools.ietf.org/html/draft-ietf-mmusic-sctp-sdp-26#section-6
    name: 'maxMessageSize',
    reg: /^max-message-size:(\d+)$/,
    format: 'max-message-size:%s'
  }, {
    // any a= that we don't understand is kepts verbatim on media.invalid
    push: 'invalid',
    names: ['value']
  }]
}; // set sensible defaults to avoid polluting the grammar with boring details

Object.keys(grammar).forEach(function (key) {
  var objs = grammar[key];
  objs.forEach(function (obj) {
    if (!obj.reg) {
      obj.reg = /(.*)/;
    }

    if (!obj.format) {
      obj.format = '%s';
    }
  });
});

}),
/* 15 */
(function(module, exports) {

// shim for using process in browser
var process = module.exports = {}; // cached from whatever global is present so that test runners that stub it
// don't break things.  But we need to wrap it in a try catch in case it is
// wrapped in strict mode code which doesn't define any globals.  It's inside a
// function because try/catches deoptimize in certain engines.

var cachedSetTimeout;
var cachedClearTimeout;

function defaultSetTimout() {
  throw new Error('setTimeout has not been defined');
}

function defaultClearTimeout() {
  throw new Error('clearTimeout has not been defined');
}

(function () {
  try {
    if (typeof setTimeout === 'function') {
      cachedSetTimeout = setTimeout;
    } else {
      cachedSetTimeout = defaultSetTimout;
    }
  } catch (e) {
    cachedSetTimeout = defaultSetTimout;
  }

  try {
    if (typeof clearTimeout === 'function') {
      cachedClearTimeout = clearTimeout;
    } else {
      cachedClearTimeout = defaultClearTimeout;
    }
  } catch (e) {
    cachedClearTimeout = defaultClearTimeout;
  }
})();

function runTimeout(fun) {
  if (cachedSetTimeout === setTimeout) {
    //normal enviroments in sane situations
    return setTimeout(fun, 0);
  } // if setTimeout wasn't available but was latter defined


  if ((cachedSetTimeout === defaultSetTimout || !cachedSetTimeout) && setTimeout) {
    cachedSetTimeout = setTimeout;
    return setTimeout(fun, 0);
  }

  try {
    // when when somebody has screwed with setTimeout but no I.E. maddness
    return cachedSetTimeout(fun, 0);
  } catch (e) {
    try {
      // When we are in I.E. but the script has been evaled so I.E. doesn't trust the global object when called normally
      return cachedSetTimeout.call(null, fun, 0);
    } catch (e) {
      // same as above but when it's a version of I.E. that must have the global object for 'this', hopfully our context correct otherwise it will throw a global error
      return cachedSetTimeout.call(this, fun, 0);
    }
  }
}

function runClearTimeout(marker) {
  if (cachedClearTimeout === clearTimeout) {
    //normal enviroments in sane situations
    return clearTimeout(marker);
  } // if clearTimeout wasn't available but was latter defined


  if ((cachedClearTimeout === defaultClearTimeout || !cachedClearTimeout) && clearTimeout) {
    cachedClearTimeout = clearTimeout;
    return clearTimeout(marker);
  }

  try {
    // when when somebody has screwed with setTimeout but no I.E. maddness
    return cachedClearTimeout(marker);
  } catch (e) {
    try {
      // When we are in I.E. but the script has been evaled so I.E. doesn't  trust the global object when called normally
      return cachedClearTimeout.call(null, marker);
    } catch (e) {
      // same as above but when it's a version of I.E. that must have the global object for 'this', hopfully our context correct otherwise it will throw a global error.
      // Some versions of I.E. have different rules for clearTimeout vs setTimeout
      return cachedClearTimeout.call(this, marker);
    }
  }
}

var queue = [];
var draining = false;
var currentQueue;
var queueIndex = -1;

function cleanUpNextTick() {
  if (!draining || !currentQueue) {
    return;
  }

  draining = false;

  if (currentQueue.length) {
    queue = currentQueue.concat(queue);
  } else {
    queueIndex = -1;
  }

  if (queue.length) {
    drainQueue();
  }
}

function drainQueue() {
  if (draining) {
    return;
  }

  var timeout = runTimeout(cleanUpNextTick);
  draining = true;
  var len = queue.length;

  while (len) {
    currentQueue = queue;
    queue = [];

    while (++queueIndex < len) {
      if (currentQueue) {
        currentQueue[queueIndex].run();
      }
    }

    queueIndex = -1;
    len = queue.length;
  }

  currentQueue = null;
  draining = false;
  runClearTimeout(timeout);
}

process.nextTick = function (fun) {
  var args = new Array(arguments.length - 1);

  if (arguments.length > 1) {
    for (var i = 1; i < arguments.length; i++) {
      args[i - 1] = arguments[i];
    }
  }

  queue.push(new Item(fun, args));

  if (queue.length === 1 && !draining) {
    runTimeout(drainQueue);
  }
}; // v8 likes predictible objects


function Item(fun, array) {
  this.fun = fun;
  this.array = array;
}

Item.prototype.run = function () {
  this.fun.apply(null, this.array);
};

process.title = 'browser';
process.browser = true;
process.env = {};
process.argv = [];
process.version = ''; // empty string to avoid regexp issues

process.versions = {};

function noop() {}

process.on = noop;
process.addListener = noop;
process.once = noop;
process.off = noop;
process.removeListener = noop;
process.removeAllListeners = noop;
process.emit = noop;
process.prependListener = noop;
process.prependOnceListener = noop;

process.listeners = function (name) {
  return [];
};

process.binding = function (name) {
  throw new Error('process.binding is not supported');
};

process.cwd = function () {
  return '/';
};

process.chdir = function (dir) {
  throw new Error('process.chdir is not supported');
};

process.umask = function () {
  return 0;
};

}),
/* 16 */
(function(module, exports, __webpack_require__) {

"use strict";


var T1 = 500,
    T2 = 4000,
    T4 = 5000;
module.exports = {
  T1: T1,
  T2: T2,
  T4: T4,
  TIMER_B: 64 * T1,
  TIMER_D: 0 * T1,
  TIMER_F: 64 * T1,
  TIMER_H: 64 * T1,
  TIMER_I: 0 * T1,
  TIMER_J: 0 * T1,
  TIMER_K: 0 * T4,
  TIMER_L: 64 * T1,
  TIMER_M: 64 * T1,
  PROVISIONAL_RESPONSE_INTERVAL: 60000 // See RFC 3261 Section 13.3.1.1

};

}),
/* 17 */
(function(module, exports, __webpack_require__) {

"use strict";


function _typeof(obj) {
  if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") {
    _typeof = function _typeof(obj) {
      return typeof obj;
    };
  } else {
    _typeof = function _typeof(obj) {
      return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj;
    };
  }

  return _typeof(obj);
}

function _classCallCheck(instance, Constructor) {
  if (!(instance instanceof Constructor)) {
    throw new TypeError("Cannot call a class as a function");
  }
}

function _possibleConstructorReturn(self, call) {
  if (call && (_typeof(call) === "object" || typeof call === "function")) {
    return call;
  }

  return _assertThisInitialized(self);
}

function _assertThisInitialized(self) {
  if (self === void 0) {
    throw new ReferenceError("this hasn't been initialised - super() hasn't been called");
  }

  return self;
}

function _getPrototypeOf(o) {
  _getPrototypeOf = Object.setPrototypeOf ? Object.getPrototypeOf : function _getPrototypeOf(o) {
    return o.__proto__ || Object.getPrototypeOf(o);
  };
  return _getPrototypeOf(o);
}

function _defineProperties(target, props) {
  for (var i = 0; i < props.length; i++) {
    var descriptor = props[i];
    descriptor.enumerable = descriptor.enumerable || false;
    descriptor.configurable = true;
    if ("value" in descriptor) descriptor.writable = true;
    Object.defineProperty(target, descriptor.key, descriptor);
  }
}

function _createClass(Constructor, protoProps, staticProps) {
  if (protoProps) _defineProperties(Constructor.prototype, protoProps);
  if (staticProps) _defineProperties(Constructor, staticProps);
  return Constructor;
}

function _inherits(subClass, superClass) {
  if (typeof superClass !== "function" && superClass !== null) {
    throw new TypeError("Super expression must either be null or a function");
  }

  subClass.prototype = Object.create(superClass && superClass.prototype, {
    constructor: {
      value: subClass,
      writable: true,
      configurable: true
    }
  });
  if (superClass) _setPrototypeOf(subClass, superClass);
}

function _setPrototypeOf(o, p) {
  _setPrototypeOf = Object.setPrototypeOf || function _setPrototypeOf(o, p) {
    o.__proto__ = p;
    return o;
  };

  return _setPrototypeOf(o, p);
}
/* globals RTCPeerConnection: false, RTCSessionDescription: false */


var EventEmitter = __webpack_require__(7).EventEmitter;

var sdp_transform = __webpack_require__(13);

var JsSIP_C = __webpack_require__(1);

var Exceptions = __webpack_require__(6);

var Transactions = __webpack_require__(9);

var Utils = __webpack_require__(2);

var Timers = __webpack_require__(16);

var SIPMessage = __webpack_require__(5);

var Dialog = __webpack_require__(32);

var RequestSender = __webpack_require__(10);

var RTCSession_DTMF = __webpack_require__(34);

var RTCSession_Info = __webpack_require__(35);

var RTCSession_ReferNotifier = __webpack_require__(36);

var RTCSession_ReferSubscriber = __webpack_require__(37);

var debug = __webpack_require__(0)('JsSIP:RTCSession');

var debugerror = __webpack_require__(0)('JsSIP:ERROR:RTCSession');

var PhoneLogger = __webpack_require__(59);

var PhoneNetwork = __webpack_require__(61);

debugerror.log = console.warn.bind(console);
var C = {
  // RTCSession states.
  STATUS_NULL: 0,
  STATUS_INVITE_SENT: 1,
  STATUS_1XX_RECEIVED: 2,
  STATUS_INVITE_RECEIVED: 3,
  STATUS_WAITING_FOR_ANSWER: 4,
  STATUS_ANSWERED: 5,
  STATUS_WAITING_FOR_ACK: 6,
  STATUS_CANCELED: 7,
  STATUS_TERMINATED: 8,
  STATUS_CONFIRMED: 9
};
/**
 * Local variables.
 */

var holdMediaTypes = ['audio', 'video'];

module.exports =
/*#__PURE__*/
function (_EventEmitter) {
  _inherits(RTCSession, _EventEmitter);

  _createClass(RTCSession, null, [{
    key: "C",

    /**
     * Expose C object.
     */
    get: function get() {
      return C;
    }
  }]);

  function RTCSession(ua) {
    var _this;

    _classCallCheck(this, RTCSession);

    debug('new');
    _this = _possibleConstructorReturn(this, _getPrototypeOf(RTCSession).call(this));
    _this._id = null;
    _this._ua = ua;
    _this._status = C.STATUS_NULL;
    _this._dialog = null;
    _this._earlyDialogs = {};
    _this._contact = null;
    _this._from_tag = null;
    _this._to_tag = null; // The RTCPeerConnection instance (public attribute).

    _this._connection = null; // Prevent races on serial PeerConnction operations.

    _this._connectionPromiseQueue = Promise.resolve(); // Incoming/Outgoing request being currently processed.

    _this._request = null; // Cancel state for initial outgoing request.

    _this._is_canceled = false;
    _this._cancel_reason = ''; // RTCSession confirmation flag.

    _this._is_confirmed = false; // Is late SDP being negotiated.

    _this._late_sdp = false; // Default rtcOfferConstraints and rtcAnswerConstrainsts (passed in connect() or answer()).

    _this._rtcOfferConstraints = null;
    _this._rtcAnswerConstraints = null; // Local MediaStream.

    _this._localMediaStream = null;
    _this._localMediaStreamLocallyGenerated = false; // Flag to indicate PeerConnection ready for new actions.

    _this._rtcReady = true; // SIP Timers.

    _this._timers = {
      ackTimer: null,
      expiresTimer: null,
      invite2xxTimer: null,
      userNoAnswerTimer: null
    }; // Session info.

    _this._direction = null;
    _this._local_identity = null;
    _this._remote_identity = null;
    _this._start_time = null;
    _this._end_time = null;
    _this._tones = null; // Mute/Hold state.

    _this._audioMuted = false;
    _this._videoMuted = false;
    _this._localHold = false;
    _this._remoteHold = false; // Session Timers (RFC 4028).

    _this._sessionTimers = {
      enabled: _this._ua.configuration.session_timers,
      refreshMethod: _this._ua.configuration.session_timers_refresh_method,
      defaultExpires: JsSIP_C.SESSION_EXPIRES,
      currentExpires: null,
      running: false,
      refresher: false,
      timer: null // A setTimeout.

    }; // Map of ReferSubscriber instances indexed by the REFER's CSeq number.

    _this._referSubscribers = {}; // Custom session empty object for high level use.

    _this._data = {};
    return _this;
  }
  /**
   * User API
   */
  // Expose RTCSession constants as a property of the RTCSession instance.


  _createClass(RTCSession, [{
    key: "isInProgress",
    value: function isInProgress() {
      switch (this._status) {
        case C.STATUS_NULL:
        case C.STATUS_INVITE_SENT:
        case C.STATUS_1XX_RECEIVED:
        case C.STATUS_INVITE_RECEIVED:
        case C.STATUS_WAITING_FOR_ANSWER:
          return true;

        default:
          return false;
      }
    }
  }, {
    key: "isEstablished",
    value: function isEstablished() {
      switch (this._status) {
        case C.STATUS_ANSWERED:
        case C.STATUS_WAITING_FOR_ACK:
        case C.STATUS_CONFIRMED:
          return true;

        default:
          return false;
      }
    }
  }, {
    key: "isEnded",
    value: function isEnded() {
      switch (this._status) {
        case C.STATUS_CANCELED:
        case C.STATUS_TERMINATED:
          return true;

        default:
          return false;
      }
    }
  }, {
    key: "isMuted",
    value: function isMuted() {
      return {
        audio: this._audioMuted,
        video: this._videoMuted
      };
    }
  }, {
    key: "isOnHold",
    value: function isOnHold() {
      return {
        local: this._localHold,
        remote: this._remoteHold
      };
    }
  }, {
    key: "connect",
    value: function connect(target) {
      var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
      var initCallback = arguments.length > 2 ? arguments[2] : undefined;
      debug('connect()');
      var originalTarget = target;
      var eventHandlers = options.eventHandlers || {};
      var extraHeaders = Utils.cloneArray(options.extraHeaders);
      var mediaConstraints = options.mediaConstraints || {
        audio: true,
        video: true
      };
      var mediaStream = options.mediaStream || null;
      var pcConfig = options.pcConfig || {
        iceServers: []
      };
      var rtcConstraints = options.rtcConstraints || null;
      var rtcOfferConstraints = options.rtcOfferConstraints || null;
      this._rtcOfferConstraints = rtcOfferConstraints;
      this._rtcAnswerConstraints = options.rtcAnswerConstraints || null;
      this._data = options.data || this._data; // Check target.

      if (target === undefined) {
        throw new TypeError('Not enough arguments');
      } // Check Session Status.


      if (this._status !== C.STATUS_NULL) {
        throw new Exceptions.InvalidStateError(this._status);
      } // Check WebRTC support.


      if (!window.RTCPeerConnection) {
        throw new Exceptions.NotSupportedError('WebRTC not supported');
      } // Check target validity.


      target = this._ua.normalizeTarget(target);

      if (!target) {
        throw new TypeError("Invalid target: ".concat(originalTarget));
      } // Session Timers.


      if (this._sessionTimers.enabled) {
        if (Utils.isDecimal(options.sessionTimersExpires)) {
          if (options.sessionTimersExpires >= JsSIP_C.MIN_SESSION_EXPIRES) {
            this._sessionTimers.defaultExpires = options.sessionTimersExpires;
          } else {
            this._sessionTimers.defaultExpires = JsSIP_C.SESSION_EXPIRES;
          }
        }
      } // Set event handlers.


      for (var event in eventHandlers) {
        if (Object.prototype.hasOwnProperty.call(eventHandlers, event)) {
          this.on(event, eventHandlers[event]);
        }
      } // Session parameter initialization.


      this._from_tag = Utils.newTag(); // Set anonymous property.

      var anonymous = options.anonymous || false;
      var requestParams = {
        from_tag: this._from_tag
      };
      this._contact = this._ua.contact.toString({
        anonymous: anonymous,
        outbound: true
      });

      if (anonymous) {
        requestParams.from_display_name = 'Anonymous';
        requestParams.from_uri = 'sip:anonymous@anonymous.invalid';
        extraHeaders.push("P-Preferred-Identity: ".concat(this._ua.configuration.uri.toString()));
        extraHeaders.push('Privacy: id');
      }

      extraHeaders.push("Contact: ".concat(this._contact));
      extraHeaders.push('Content-Type: application/sdp');

      if (this._sessionTimers.enabled) {
        extraHeaders.push("Session-Expires: ".concat(this._sessionTimers.defaultExpires));
      }

      this._request = new SIPMessage.InitialOutgoingInviteRequest(target, this._ua, requestParams, extraHeaders);
      this._id = this._request.call_id + this._from_tag; // Create a new RTCPeerConnection instance.

      this._createRTCConnection(pcConfig, rtcConstraints); // Set internal properties.


      this._direction = 'outgoing';
      this._local_identity = this._request.from;
      this._remote_identity = this._request.to; // User explicitly provided a newRTCSession callback for this session.

      if (initCallback) {
        initCallback(this);
      }

      this._newRTCSession('local', this._request);

      this._sendInitialRequest(mediaConstraints, rtcOfferConstraints, mediaStream);
    }
  }, {
    key: "init_incoming",
    value: function init_incoming(request, initCallback) {
      var _this2 = this;

      debug('init_incoming()');
      var expires;
      var contentType = request.getHeader('Content-Type'); // Check body and content type.

      if (request.body && contentType !== 'application/sdp') {
        request.reply(415);
        return;
      } // Session parameter initialization.


      this._status = C.STATUS_INVITE_RECEIVED;
      this._from_tag = request.from_tag;
      this._id = request.call_id + this._from_tag;
      this._request = request;
      this._contact = this._ua.contact.toString(); // Get the Expires header value if exists.

      if (request.hasHeader('expires')) {
        expires = request.getHeader('expires') * 1000;
      }
      /* Set the to_tag before
       * replying a response code that will create a dialog.
       */


      request.to_tag = Utils.newTag(); // An error on dialog creation will fire 'failed' event.

      if (!this._createDialog(request, 'UAS', true)) {
        request.reply(500, 'Missing Contact header field');
        return;
      }

      if (request.body) {
        this._late_sdp = false;
      } else {
        this._late_sdp = true;
      }

      this._status = C.STATUS_WAITING_FOR_ANSWER; // Set userNoAnswerTimer.

      this._timers.userNoAnswerTimer = setTimeout(function () {
        request.reply(408);

        _this2._failed('local', null, JsSIP_C.causes.NO_ANSWER);
      }, this._ua.configuration.no_answer_timeout);
      /* Set expiresTimer
       * RFC3261 13.3.1
       */

      if (expires) {
        this._timers.expiresTimer = setTimeout(function () {
          if (_this2._status === C.STATUS_WAITING_FOR_ANSWER) {
            request.reply(487);

            _this2._failed('system', null, JsSIP_C.causes.EXPIRES);
          }
        }, expires);
      } // Set internal properties.


      this._direction = 'incoming';
      this._local_identity = request.to;
      this._remote_identity = request.from; // A init callback was specifically defined.

      if (initCallback) {
        initCallback(this);
      } // Fire 'newRTCSession' event.


      this._newRTCSession('remote', request); // The user may have rejected the call in the 'newRTCSession' event.


      if (this._status === C.STATUS_TERMINATED) {
        return;
      } // Reply 180.


      request.reply(180, null, ["Contact: ".concat(this._contact)]); // Fire 'progress' event.
      // TODO: Document that 'response' field in 'progress' event is null for incoming calls.

      this._progress('local', null);
    }
    /**
     * Answer the call.
     */

  }, {
    key: "answer",
    value: function answer() {
      var _this3 = this;

      var options = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};
      debug('answer()');
      var request = this._request;
      var extraHeaders = Utils.cloneArray(options.extraHeaders);
      var mediaConstraints = options.mediaConstraints || {};
      var mediaStream = options.mediaStream || null;
      var pcConfig = options.pcConfig || {
        iceServers: []
      };
      var rtcConstraints = options.rtcConstraints || null;
      var rtcAnswerConstraints = options.rtcAnswerConstraints || null;
      var tracks;
      var peerHasAudioLine = false;
      var peerHasVideoLine = false;
      var peerOffersFullAudio = false;
      var peerOffersFullVideo = false;
      this._rtcAnswerConstraints = rtcAnswerConstraints;
      this._rtcOfferConstraints = options.rtcOfferConstraints || null;
      this._data = options.data || this._data; // Check Session Direction and Status.

      if (this._direction !== 'incoming') {
        throw new Exceptions.NotSupportedError('"answer" not supported for outgoing RTCSession');
      } // Check Session status.


      if (this._status !== C.STATUS_WAITING_FOR_ANSWER) {
        throw new Exceptions.InvalidStateError(this._status);
      } // Session Timers.


      if (this._sessionTimers.enabled) {
        if (Utils.isDecimal(options.sessionTimersExpires)) {
          if (options.sessionTimersExpires >= JsSIP_C.MIN_SESSION_EXPIRES) {
            this._sessionTimers.defaultExpires = options.sessionTimersExpires;
          } else {
            this._sessionTimers.defaultExpires = JsSIP_C.SESSION_EXPIRES;
          }
        }
      }

      this._status = C.STATUS_ANSWERED; // An error on dialog creation will fire 'failed' event.

      if (!this._createDialog(request, 'UAS')) {
        request.reply(500, 'Error creating dialog');
        return;
      }

      clearTimeout(this._timers.userNoAnswerTimer);
      extraHeaders.unshift("Contact: ".concat(this._contact)); // Determine incoming media from incoming SDP offer (if any).

      var sdp = request.parseSDP(); // Make sure sdp.media is an array, not the case if there is only one media.

      if (!Array.isArray(sdp.media)) {
        sdp.media = [sdp.media];
      } // Go through all medias in SDP to find offered capabilities to answer with.


      var _iteratorNormalCompletion = true;
      var _didIteratorError = false;
      var _iteratorError = undefined;

      try {
        for (var _iterator = sdp.media[Symbol.iterator](), _step; !(_iteratorNormalCompletion = (_step = _iterator.next()).done); _iteratorNormalCompletion = true) {
          var m = _step.value;

          if (m.type === 'audio') {
            peerHasAudioLine = true;

            if (!m.direction || m.direction === 'sendrecv') {
              peerOffersFullAudio = true;
            }
          }

          if (m.type === 'video') {
            peerHasVideoLine = true;

            if (!m.direction || m.direction === 'sendrecv') {
              peerOffersFullVideo = true;
            }
          }
        } // Remove audio from mediaStream if suggested by mediaConstraints.

      } catch (err) {
        _didIteratorError = true;
        _iteratorError = err;
      } finally {
        try {
          if (!_iteratorNormalCompletion && _iterator.return != null) {
            _iterator.return();
          }
        } finally {
          if (_didIteratorError) {
            throw _iteratorError;
          }
        }
      }

      if (mediaStream && mediaConstraints.audio === false) {
        tracks = mediaStream.getAudioTracks();
        var _iteratorNormalCompletion2 = true;
        var _didIteratorError2 = false;
        var _iteratorError2 = undefined;

        try {
          for (var _iterator2 = tracks[Symbol.iterator](), _step2; !(_iteratorNormalCompletion2 = (_step2 = _iterator2.next()).done); _iteratorNormalCompletion2 = true) {
            var track = _step2.value;
            mediaStream.removeTrack(track);
          }
        } catch (err) {
          _didIteratorError2 = true;
          _iteratorError2 = err;
        } finally {
          try {
            if (!_iteratorNormalCompletion2 && _iterator2.return != null) {
              _iterator2.return();
            }
          } finally {
            if (_didIteratorError2) {
              throw _iteratorError2;
            }
          }
        }
      } // Remove video from mediaStream if suggested by mediaConstraints.


      if (mediaStream && mediaConstraints.video === false) {
        tracks = mediaStream.getVideoTracks();
        var _iteratorNormalCompletion3 = true;
        var _didIteratorError3 = false;
        var _iteratorError3 = undefined;

        try {
          for (var _iterator3 = tracks[Symbol.iterator](), _step3; !(_iteratorNormalCompletion3 = (_step3 = _iterator3.next()).done); _iteratorNormalCompletion3 = true) {
            var _track = _step3.value;
            mediaStream.removeTrack(_track);
          }
        } catch (err) {
          _didIteratorError3 = true;
          _iteratorError3 = err;
        } finally {
          try {
            if (!_iteratorNormalCompletion3 && _iterator3.return != null) {
              _iterator3.return();
            }
          } finally {
            if (_didIteratorError3) {
              throw _iteratorError3;
            }
          }
        }
      } // Set audio constraints based on incoming stream if not supplied.


      if (!mediaStream && mediaConstraints.audio === undefined) {
        mediaConstraints.audio = peerOffersFullAudio;
      } // Set video constraints based on incoming stream if not supplied.


      if (!mediaStream && mediaConstraints.video === undefined) {
        mediaConstraints.video = peerOffersFullVideo;
      } // Don't ask for audio if the incoming offer has no audio section.


      if (!mediaStream && !peerHasAudioLine) {
        mediaConstraints.audio = false;
      } // Don't ask for video if the incoming offer has no video section.


      if (!mediaStream && !peerHasVideoLine) {
        mediaConstraints.video = false;
      } // Create a new RTCPeerConnection instance.
      // TODO: This may throw an error, should react.


      this._createRTCConnection(pcConfig, rtcConstraints);

      Promise.resolve() // Handle local MediaStream.
      .then(function () {
        // A local MediaStream is given, use it.
        if (mediaStream) {
          return mediaStream;
        } // Audio and/or video requested, prompt getUserMedia.
        else if (mediaConstraints.audio || mediaConstraints.video) {
            _this3._localMediaStreamLocallyGenerated = true;
            return navigator.mediaDevices.getUserMedia(mediaConstraints).catch(function (error) {
              if (_this3._status === C.STATUS_TERMINATED) {
                throw new Error('terminated');
              }

              request.reply(480);

              _this3._failed('local', null, JsSIP_C.causes.USER_DENIED_MEDIA_ACCESS);

              debugerror('emit "getusermediafailed" [error:%o]', error);

              _this3.emit('getusermediafailed', error);

              throw new Error('getUserMedia() failed');
            });
          }
      }) // Attach MediaStream to RTCPeerconnection.
      .then(function (stream) {
        if (_this3._status === C.STATUS_TERMINATED) {
          throw new Error('terminated');
        }

        _this3._localMediaStream = stream;

        if (stream) {
          var isSafari = /^((?!chrome|android).)*safari/i.test(navigator.userAgent);
          if(isSafari) {
            _this3._connection.addStream(stream);
          } else {
            stream.getTracks().forEach(function (track) {
              _this3._connection.addTrack(track, stream);
            });
          }
        }
      }) // Set remote description.
      .then(function () {
        if (_this3._late_sdp) {
          return;
        }

        var e = {
          originator: 'remote',
          type: 'offer',
          sdp: request.body
        };
        debug('emit "sdp"');

        _this3.emit('sdp', e);

        var offer = new RTCSessionDescription({
          type: 'offer',
          sdp: e.sdp
        });
        _this3._connectionPromiseQueue = _this3._connectionPromiseQueue.then(function () {
          return _this3._connection.setRemoteDescription(offer);
        }).catch(function (error) {
          request.reply(488);

          _this3._failed('system', null, JsSIP_C.causes.WEBRTC_ERROR);

          debugerror('emit "peerconnection:setremotedescriptionfailed" [error:%o]', error);

          _this3.emit('peerconnection:setremotedescriptionfailed', error);

          throw new Error('peerconnection.setRemoteDescription() failed');
        });
        return _this3._connectionPromiseQueue;
      }) // Create local description.
      .then(function () {
        if (_this3._status === C.STATUS_TERMINATED) {
          throw new Error('terminated');
        } // TODO: Is this event already useful?


        _this3._connecting(request);

        if (!_this3._late_sdp) {
          return _this3._createLocalDescription('answer', rtcAnswerConstraints).catch(function () {
            request.reply(500);
            throw new Error('_createLocalDescription() failed');
          });
        } else {
          return _this3._createLocalDescription('offer', _this3._rtcOfferConstraints).catch(function () {
            request.reply(500);
            throw new Error('_createLocalDescription() failed');
          });
        }
      }) // Send reply.
      .then(function (desc) {
        if (_this3._status === C.STATUS_TERMINATED) {
          throw new Error('terminated');
        }

        _this3._handleSessionTimersInIncomingRequest(request, extraHeaders);

        request.reply(200, null, extraHeaders, desc, function () {
          _this3._status = C.STATUS_WAITING_FOR_ACK;

          _this3._setInvite2xxTimer(request, desc);

          _this3._setACKTimer();

          _this3._accepted('local');
        }, function () {
          _this3._failed('system', null, JsSIP_C.causes.CONNECTION_ERROR);
        });
      }).catch(function (error) {
        if (_this3._status === C.STATUS_TERMINATED) {
          return;
        }

        debugerror(error);
      });
    }
    /**
     * Terminate the call.
     */

  }, {
    key: "terminate",
    value: function terminate() {
      var _this4 = this;

      var options = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};
      debug('terminate()');
      var cause = options.cause || JsSIP_C.causes.BYE;
      var extraHeaders = Utils.cloneArray(options.extraHeaders);
      var body = options.body;
      var cancel_reason;
      var status_code = options.status_code;
      var reason_phrase = options.reason_phrase; // Check Session Status.

      if (this._status === C.STATUS_TERMINATED) {
        throw new Exceptions.InvalidStateError(this._status);
      }

      switch (this._status) {
        // - UAC -
        case C.STATUS_NULL:
        case C.STATUS_INVITE_SENT:
        case C.STATUS_1XX_RECEIVED:
          debug('canceling session');

          if (status_code && (status_code < 200 || status_code >= 700)) {
            throw new TypeError("Invalid status_code: ".concat(status_code));
          } else if (status_code) {
            reason_phrase = reason_phrase || JsSIP_C.REASON_PHRASE[status_code] || '';
            cancel_reason = "SIP ;cause=".concat(status_code, " ;text=\"").concat(reason_phrase, "\"");
          } // Check Session Status.


          if (this._status === C.STATUS_NULL || this._status === C.STATUS_INVITE_SENT) {
            this._is_canceled = true;
            this._cancel_reason = cancel_reason;
          } else if (this._status === C.STATUS_1XX_RECEIVED) {
            this._request.cancel(cancel_reason);
          }

          this._status = C.STATUS_CANCELED;

          this._failed('local', null, JsSIP_C.causes.CANCELED);

          break;
        // - UAS -

        case C.STATUS_WAITING_FOR_ANSWER:
        case C.STATUS_ANSWERED:
          debug('rejecting session');
          status_code = status_code || 480;

          if (status_code < 300 || status_code >= 700) {
            throw new TypeError("Invalid status_code: ".concat(status_code));
          }

          this._request.reply(status_code, reason_phrase, extraHeaders, body);

          this._failed('local', null, JsSIP_C.causes.REJECTED);

          break;

        case C.STATUS_WAITING_FOR_ACK:
        case C.STATUS_CONFIRMED:
          debug('terminating session');
          reason_phrase = options.reason_phrase || JsSIP_C.REASON_PHRASE[status_code] || '';

          if (status_code && (status_code < 200 || status_code >= 700)) {
            throw new TypeError("Invalid status_code: ".concat(status_code));
          } else if (status_code) {
            extraHeaders.push("Reason: SIP ;cause=".concat(status_code, "; text=\"").concat(reason_phrase, "\""));
          }
          /* RFC 3261 section 15 (Terminating a session):
            *
            * "...the callee's UA MUST NOT send a BYE on a confirmed dialog
            * until it has received an ACK for its 2xx response or until the server
            * transaction times out."
            */


          if (this._status === C.STATUS_WAITING_FOR_ACK && this._direction === 'incoming' && this._request.server_transaction.state !== Transactions.C.STATUS_TERMINATED) {
            // Save the dialog for later restoration.
            var dialog = this._dialog; // Send the BYE as soon as the ACK is received...

            this.receiveRequest = function (_ref) {
              var method = _ref.method;

              if (method === JsSIP_C.ACK) {
                _this4.sendRequest(JsSIP_C.BYE, {
                  extraHeaders: extraHeaders,
                  body: body
                });

                dialog.terminate();
              }
            }; // .., or when the INVITE transaction times out


            this._request.server_transaction.on('stateChanged', function () {
              if (_this4._request.server_transaction.state === Transactions.C.STATUS_TERMINATED) {
                _this4.sendRequest(JsSIP_C.BYE, {
                  extraHeaders: extraHeaders,
                  body: body
                });

                dialog.terminate();
              }
            });

            this._ended('local', null, cause); // Restore the dialog into 'this' in order to be able to send the in-dialog BYE :-).


            this._dialog = dialog; // Restore the dialog into 'ua' so the ACK can reach 'this' session.

            this._ua.newDialog(dialog);
          } else {
            this.sendRequest(JsSIP_C.BYE, {
              extraHeaders: extraHeaders,
              body: body
            });

            this._ended('local', null, cause);
          }

      }
    }
  }, {
    key: "sendDTMF",
    value: function sendDTMF(tones) {
      var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
      debug('sendDTMF() | tones: %s', tones);
      var position = 0;
      var duration = options.duration || null;
      var interToneGap = options.interToneGap || null;

      if (tones === undefined) {
        throw new TypeError('Not enough arguments');
      } // Check Session Status.


      if (this._status !== C.STATUS_CONFIRMED && this._status !== C.STATUS_WAITING_FOR_ACK) {
        throw new Exceptions.InvalidStateError(this._status);
      } // Convert to string.


      if (typeof tones === 'number') {
        tones = tones.toString();
      } // Check tones.


      if (!tones || typeof tones !== 'string' || !tones.match(/^[0-9A-DR#*,]+$/i)) {
        throw new TypeError("Invalid tones: ".concat(tones));
      } // Check duration.


      if (duration && !Utils.isDecimal(duration)) {
        throw new TypeError("Invalid tone duration: ".concat(duration));
      } else if (!duration) {
        duration = RTCSession_DTMF.C.DEFAULT_DURATION;
      } else if (duration < RTCSession_DTMF.C.MIN_DURATION) {
        debug("\"duration\" value is lower than the minimum allowed, setting it to ".concat(RTCSession_DTMF.C.MIN_DURATION, " milliseconds"));
        duration = RTCSession_DTMF.C.MIN_DURATION;
      } else if (duration > RTCSession_DTMF.C.MAX_DURATION) {
        debug("\"duration\" value is greater than the maximum allowed, setting it to ".concat(RTCSession_DTMF.C.MAX_DURATION, " milliseconds"));
        duration = RTCSession_DTMF.C.MAX_DURATION;
      } else {
        duration = Math.abs(duration);
      }

      options.duration = duration; // Check interToneGap.

      if (interToneGap && !Utils.isDecimal(interToneGap)) {
        throw new TypeError("Invalid interToneGap: ".concat(interToneGap));
      } else if (!interToneGap) {
        interToneGap = RTCSession_DTMF.C.DEFAULT_INTER_TONE_GAP;
      } else if (interToneGap < RTCSession_DTMF.C.MIN_INTER_TONE_GAP) {
        debug("\"interToneGap\" value is lower than the minimum allowed, setting it to ".concat(RTCSession_DTMF.C.MIN_INTER_TONE_GAP, " milliseconds"));
        interToneGap = RTCSession_DTMF.C.MIN_INTER_TONE_GAP;
      } else {
        interToneGap = Math.abs(interToneGap);
      }

      if (this._tones) {
        // Tones are already queued, just add to the queue.
        this._tones += tones;
        return;
      }

      this._tones = tones; // Send the first tone.

      _sendDTMF.call(this);

      function _sendDTMF() {
        var _this5 = this;

        var timeout;

        if (this._status === C.STATUS_TERMINATED || !this._tones || position >= this._tones.length) {
          // Stop sending DTMF.
          this._tones = null;
          return;
        }

        var tone = this._tones[position];
        position += 1;

        if (tone === ',') {
          timeout = 2000;
        } else {
          var dtmf = new RTCSession_DTMF(this);
          options.eventHandlers = {
            onFailed: function onFailed() {
              _this5._tones = null;
            }
          };
          dtmf.send(tone, options);
          timeout = duration + interToneGap;
        } // Set timeout for the next tone.


        setTimeout(_sendDTMF.bind(this), timeout);
      }
    }
  }, {
    key: "sendInfo",
    value: function sendInfo(contentType, body) {
      var options = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : {};
      debug('sendInfo()'); // Check Session Status.

      if (this._status !== C.STATUS_CONFIRMED && this._status !== C.STATUS_WAITING_FOR_ACK) {
        throw new Exceptions.InvalidStateError(this._status);
      }

      var info = new RTCSession_Info(this);
      info.send(contentType, body, options);
    }
    /**
     * Mute
     */

  }, {
    key: "mute",
    value: function mute() {
      var options = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {
        audio: true,
        video: false
      };
      debug('mute()');
      var audioMuted = false,
          videoMuted = false;

      if (this._audioMuted === false && options.audio) {
        audioMuted = true;
        this._audioMuted = true;

        this._toggleMuteAudio(true);
      }

      if (this._videoMuted === false && options.video) {
        videoMuted = true;
        this._videoMuted = true;

        this._toggleMuteVideo(true);
      }

      if (audioMuted === true || videoMuted === true) {
        this._onmute({
          audio: audioMuted,
          video: videoMuted
        });
      }
    }
    /**
     * Unmute
     */

  }, {
    key: "unmute",
    value: function unmute() {
      var options = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {
        audio: true,
        video: true
      };
      debug('unmute()');
      var audioUnMuted = false,
          videoUnMuted = false;

      if (this._audioMuted === true && options.audio) {
        audioUnMuted = true;
        this._audioMuted = false;

        if (this._localHold === false) {
          this._toggleMuteAudio(false);
        }
      }

      if (this._videoMuted === true && options.video) {
        videoUnMuted = true;
        this._videoMuted = false;

        if (this._localHold === false) {
          this._toggleMuteVideo(false);
        }
      }

      if (audioUnMuted === true || videoUnMuted === true) {
        this._onunmute({
          audio: audioUnMuted,
          video: videoUnMuted
        });
      }
    }
    /**
     * Hold
     */

  }, {
    key: "hold",
    value: function hold() {
      var _this6 = this;

      var options = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};
      var done = arguments.length > 1 ? arguments[1] : undefined;
      debug('hold()');

      if (this._status !== C.STATUS_WAITING_FOR_ACK && this._status !== C.STATUS_CONFIRMED) {
        return false;
      }

      if (this._localHold === true) {
        return false;
      }

      if (!this._isReadyToReOffer()) {
        return false;
      }

      this._localHold = true;

      this._onhold('local');

      var eventHandlers = {
        succeeded: function succeeded() {
          if (done) {
            done();
          }
        },
        failed: function failed() {
          _this6.terminate({
            cause: JsSIP_C.causes.WEBRTC_ERROR,
            status_code: 500,
            reason_phrase: 'Hold Failed'
          });
        }
      };

      if (options.useUpdate) {
        this._sendUpdate({
          sdpOffer: true,
          eventHandlers: eventHandlers,
          extraHeaders: options.extraHeaders
        });
      } else {
        this._sendReinvite({
          eventHandlers: eventHandlers,
          extraHeaders: options.extraHeaders
        });
      }

      return true;
    }
  }, {
    key: "unhold",
    value: function unhold() {
      var _this7 = this;

      var options = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};
      var done = arguments.length > 1 ? arguments[1] : undefined;
      debug('unhold()');

      if (this._status !== C.STATUS_WAITING_FOR_ACK && this._status !== C.STATUS_CONFIRMED) {
        return false;
      }

      if (this._localHold === false) {
        return false;
      }

      if (!this._isReadyToReOffer()) {
        return false;
      }

      this._localHold = false;

      this._onunhold('local');

      var eventHandlers = {
        succeeded: function succeeded() {
          if (done) {
            done();
          }
        },
        failed: function failed() {
          _this7.terminate({
            cause: JsSIP_C.causes.WEBRTC_ERROR,
            status_code: 500,
            reason_phrase: 'Unhold Failed'
          });
        }
      };

      if (options.useUpdate) {
        this._sendUpdate({
          sdpOffer: true,
          eventHandlers: eventHandlers,
          extraHeaders: options.extraHeaders
        });
      } else {
        this._sendReinvite({
          eventHandlers: eventHandlers,
          extraHeaders: options.extraHeaders
        });
      }

      return true;
    }
  }, {
    key: "renegotiate",
    value: function renegotiate() {
      var _this8 = this;

      var options = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};
      var done = arguments.length > 1 ? arguments[1] : undefined;
      debug('renegotiate()');
      var rtcOfferConstraints = options.rtcOfferConstraints || null;

      if (this._status !== C.STATUS_WAITING_FOR_ACK && this._status !== C.STATUS_CONFIRMED) {
        return false;
      }

      if (!this._isReadyToReOffer()) {
        return false;
      }

      var eventHandlers = {
        succeeded: function succeeded() {
          if (done) {
            done();
          }
        },
        failed: function failed() {
          _this8.terminate({
            cause: JsSIP_C.causes.WEBRTC_ERROR,
            status_code: 500,
            reason_phrase: 'Media Renegotiation Failed'
          });
        }
      };

      this._setLocalMediaStatus();

      if (options.useUpdate) {
        this._sendUpdate({
          sdpOffer: true,
          eventHandlers: eventHandlers,
          rtcOfferConstraints: rtcOfferConstraints,
          extraHeaders: options.extraHeaders
        });
      } else {
        this._sendReinvite({
          eventHandlers: eventHandlers,
          rtcOfferConstraints: rtcOfferConstraints,
          extraHeaders: options.extraHeaders
        });
      }

      return true;
    }
    /**
     * Refer
     */

  }, {
    key: "refer",
    value: function refer(target, options) {
      var _this9 = this;

      debug('refer()');
      var originalTarget = target;

      if (this._status !== C.STATUS_WAITING_FOR_ACK && this._status !== C.STATUS_CONFIRMED) {
        return false;
      } // Check target validity.


      target = this._ua.normalizeTarget(target);

      if (!target) {
        throw new TypeError("Invalid target: ".concat(originalTarget));
      }

      var referSubscriber = new RTCSession_ReferSubscriber(this);
      referSubscriber.sendRefer(target, options); // Store in the map.

      var id = referSubscriber.id;
      this._referSubscribers[id] = referSubscriber; // Listen for ending events so we can remove it from the map.

      referSubscriber.on('requestFailed', function () {
        delete _this9._referSubscribers[id];
      });
      referSubscriber.on('accepted', function () {
        delete _this9._referSubscribers[id];
      });
      referSubscriber.on('failed', function () {
        delete _this9._referSubscribers[id];
      });
      return referSubscriber;
    }
    /**
     * Send a generic in-dialog Request
     */

  }, {
    key: "sendRequest",
    value: function sendRequest(method, options) {
      debug('sendRequest()');
      return this._dialog.sendRequest(method, options);
    }
    /**
     * In dialog Request Reception
     */

  }, {
    key: "receiveRequest",
    value: function receiveRequest(request) {
      var _this10 = this;

      debug('receiveRequest()');

      if (request.method === JsSIP_C.CANCEL) {
        /* RFC3261 15 States that a UAS may have accepted an invitation while a CANCEL
        * was in progress and that the UAC MAY continue with the session established by
        * any 2xx response, or MAY terminate with BYE. JsSIP does continue with the
        * established session. So the CANCEL is processed only if the session is not yet
        * established.
        */

        /*
        * Terminate the whole session in case the user didn't accept (or yet send the answer)
        * nor reject the request opening the session.
        */
        if (this._status === C.STATUS_WAITING_FOR_ANSWER || this._status === C.STATUS_ANSWERED) {
          this._status = C.STATUS_CANCELED;

          this._request.reply(487);

          this._failed('remote', request, JsSIP_C.causes.CANCELED);
        }
      } else {
        // Requests arriving here are in-dialog requests.
        switch (request.method) {
          case JsSIP_C.ACK:
            if (this._status !== C.STATUS_WAITING_FOR_ACK) {
              return;
            } // Update signaling status.


            this._status = C.STATUS_CONFIRMED;
            clearTimeout(this._timers.ackTimer);
            clearTimeout(this._timers.invite2xxTimer);

            if (this._late_sdp) {
              if (!request.body) {
                this.terminate({
                  cause: JsSIP_C.causes.MISSING_SDP,
                  status_code: 400
                });
                break;
              }

              var e = {
                originator: 'remote',
                type: 'answer',
                sdp: request.body
              };
              debug('emit "sdp"');
              this.emit('sdp', e);
              var answer = new RTCSessionDescription({
                type: 'answer',
                sdp: e.sdp
              });
              this._connectionPromiseQueue = this._connectionPromiseQueue.then(function () {
                return _this10._connection.setRemoteDescription(answer);
              }).then(function () {
                if (!_this10._is_confirmed) {
                  _this10._confirmed('remote', request);
                }
              }).catch(function (error) {
                _this10.terminate({
                  cause: JsSIP_C.causes.BAD_MEDIA_DESCRIPTION,
                  status_code: 488
                });

                debugerror('emit "peerconnection:setremotedescriptionfailed" [error:%o]', error);

                _this10.emit('peerconnection:setremotedescriptionfailed', error);
              });
            } else if (!this._is_confirmed) {
              this._confirmed('remote', request);
            }

            break;

          case JsSIP_C.BYE:
            if (this._status === C.STATUS_CONFIRMED) {
              request.reply(200);

              this._ended('remote', request, JsSIP_C.causes.BYE);
            } else if (this._status === C.STATUS_INVITE_RECEIVED) {
              request.reply(200);

              this._request.reply(487, 'BYE Received');

              this._ended('remote', request, JsSIP_C.causes.BYE);
            } else {
              request.reply(403, 'Wrong Status');
            }

            break;

          case JsSIP_C.INVITE:
            if (this._status === C.STATUS_CONFIRMED) {
              if (request.hasHeader('replaces')) {
                this._receiveReplaces(request);
              } else {
                this._receiveReinvite(request);
              }
            } else {
              request.reply(403, 'Wrong Status');
            }

            break;

          case JsSIP_C.INFO:
            if (this._status === C.STATUS_1XX_RECEIVED || this._status === C.STATUS_WAITING_FOR_ANSWER || this._status === C.STATUS_ANSWERED || this._status === C.STATUS_WAITING_FOR_ACK || this._status === C.STATUS_CONFIRMED) {
              var contentType = request.getHeader('content-type');

              if (contentType && contentType.match(/^application\/dtmf-relay/i)) {
                new RTCSession_DTMF(this).init_incoming(request);
              } else if (contentType !== undefined) {
                new RTCSession_Info(this).init_incoming(request);
              } else {
                request.reply(415);
              }
            } else {
              request.reply(403, 'Wrong Status');
            }

            break;

          case JsSIP_C.UPDATE:
            if (this._status === C.STATUS_CONFIRMED) {
              this._receiveUpdate(request);
            } else {
              request.reply(403, 'Wrong Status');
            }

            break;

          case JsSIP_C.REFER:
            if (this._status === C.STATUS_CONFIRMED) {
              this._receiveRefer(request);
            } else {
              request.reply(403, 'Wrong Status');
            }

            break;

          case JsSIP_C.NOTIFY:
            if (this._status === C.STATUS_CONFIRMED) {
              this._receiveNotify(request);
            } else {
              request.reply(403, 'Wrong Status');
            }

            break;

          default:
            request.reply(501);
        }
      }
    }
    /**
     * Session Callbacks
     */

  }, {
    key: "onTransportError",
    value: function onTransportError() {
      debugerror('onTransportError()');

      if (this._status !== C.STATUS_TERMINATED) {
        this.terminate({
          status_code: 500,
          reason_phrase: JsSIP_C.causes.CONNECTION_ERROR,
          cause: JsSIP_C.causes.CONNECTION_ERROR
        });
      }
    }
  }, {
    key: "onRequestTimeout",
    value: function onRequestTimeout() {
      debugerror('onRequestTimeout()');

      if (this._status !== C.STATUS_TERMINATED) {
        this.terminate({
          status_code: 408,
          reason_phrase: JsSIP_C.causes.REQUEST_TIMEOUT,
          cause: JsSIP_C.causes.REQUEST_TIMEOUT
        });
      }
    }
  }, {
    key: "onDialogError",
    value: function onDialogError() {
      debugerror('onDialogError()');

      if (this._status !== C.STATUS_TERMINATED) {
        this.terminate({
          status_code: 500,
          reason_phrase: JsSIP_C.causes.DIALOG_ERROR,
          cause: JsSIP_C.causes.DIALOG_ERROR
        });
      }
    } // Called from DTMF handler.

  }, {
    key: "newDTMF",
    value: function newDTMF(data) {
      debug('newDTMF()');
      this.emit('newDTMF', data);
    } // Called from Info handler.

  }, {
    key: "newInfo",
    value: function newInfo(data) {
      debug('newInfo()');
      this.emit('newInfo', data);
    }
    /**
     * Check if RTCSession is ready for an outgoing re-INVITE or UPDATE with SDP.
     */

  }, {
    key: "_isReadyToReOffer",
    value: function _isReadyToReOffer() {
      if (!this._rtcReady) {
        debug('_isReadyToReOffer() | internal WebRTC status not ready');
        return false;
      } // No established yet.


      if (!this._dialog) {
        debug('_isReadyToReOffer() | session not established yet');
        return false;
      } // Another INVITE transaction is in progress.


      if (this._dialog.uac_pending_reply === true || this._dialog.uas_pending_reply === true) {
        debug('_isReadyToReOffer() | there is another INVITE/UPDATE transaction in progress');
        return false;
      }

      return true;
    }
  }, {
    key: "_close",
    value: function _close() {
      debug('close()');

      if (this._status === C.STATUS_TERMINATED) {
        return;
      }

      this._status = C.STATUS_TERMINATED; // Terminate RTC.

      if (this._connection) {
        try {
          this._connection.close();
        } catch (error) {
          debugerror('close() | error closing the RTCPeerConnection: %o', error);
        }
      } // Close local MediaStream if it was not given by the user.


      if (this._localMediaStream && this._localMediaStreamLocallyGenerated) {
        debug('close() | closing local MediaStream');
        Utils.closeMediaStream(this._localMediaStream);
      } // Terminate signaling.
      // Clear SIP timers.


      for (var timer in this._timers) {
        if (Object.prototype.hasOwnProperty.call(this._timers, timer)) {
          clearTimeout(this._timers[timer]);
        }
      } // Clear Session Timers.


      clearTimeout(this._sessionTimers.timer); // Terminate confirmed dialog.

      if (this._dialog) {
        this._dialog.terminate();

        delete this._dialog;
      } // Terminate early dialogs.


      for (var dialog in this._earlyDialogs) {
        if (Object.prototype.hasOwnProperty.call(this._earlyDialogs, dialog)) {
          this._earlyDialogs[dialog].terminate();

          delete this._earlyDialogs[dialog];
        }
      } // Terminate REFER subscribers.


      for (var subscriber in this._referSubscribers) {
        if (Object.prototype.hasOwnProperty.call(this._referSubscribers, subscriber)) {
          delete this._referSubscribers[subscriber];
        }
      }

      this._ua.destroyRTCSession(this);
    }
    /**
     * Private API.
     */

    /**
     * RFC3261 13.3.1.4
     * Response retransmissions cannot be accomplished by transaction layer
     *  since it is destroyed when receiving the first 2xx answer
     */

  }, {
    key: "_setInvite2xxTimer",
    value: function _setInvite2xxTimer(request, body) {
      var timeout = Timers.T1;

      function invite2xxRetransmission() {
        if (this._status !== C.STATUS_WAITING_FOR_ACK) {
          return;
        }

        request.reply(200, null, ["Contact: ".concat(this._contact)], body);

        if (timeout < Timers.T2) {
          timeout = timeout * 2;

          if (timeout > Timers.T2) {
            timeout = Timers.T2;
          }
        }

        this._timers.invite2xxTimer = setTimeout(invite2xxRetransmission.bind(this), timeout);
      }

      this._timers.invite2xxTimer = setTimeout(invite2xxRetransmission.bind(this), timeout);
    }
    /**
     * RFC3261 14.2
     * If a UAS generates a 2xx response and never receives an ACK,
     *  it SHOULD generate a BYE to terminate the dialog.
     */

  }, {
    key: "_setACKTimer",
    value: function _setACKTimer() {
      var _this11 = this;

      this._timers.ackTimer = setTimeout(function () {
        if (_this11._status === C.STATUS_WAITING_FOR_ACK) {
          debug('no ACK received, terminating the session');
          clearTimeout(_this11._timers.invite2xxTimer);

          _this11.sendRequest(JsSIP_C.BYE);

          _this11._ended('remote', null, JsSIP_C.causes.NO_ACK);
        }
      }, Timers.TIMER_H);
    }
  }, {
    key: "_createRTCConnection",
    value: function _createRTCConnection(pcConfig, rtcConstraints) {
      var _this12 = this;

      this._connection = new RTCPeerConnection(pcConfig, rtcConstraints);

      this._connection.addEventListener('iceconnectionstatechange', function () {
        var state = _this12._connection.iceConnectionState; // TODO: Do more with different states.

        if (state === 'failed') {
          _this12.terminate({
            cause: JsSIP_C.causes.RTP_TIMEOUT,
            status_code: 408,
            reason_phrase: JsSIP_C.causes.RTP_TIMEOUT
          });
        }
      });

      debug('emit "peerconnection"');
      this.emit('peerconnection', {
        peerconnection: this._connection
      });
    }
  }, {
    key: "_createLocalDescription",
    value: function _createLocalDescription(type, constraints) {
      var _this13 = this;

      debug('createLocalDescription()');
      if (type !== 'offer' && type !== 'answer') throw new Error("createLocalDescription() | invalid type \"".concat(type, "\""));
      var connection = this._connection;
      this._rtcReady = false;
      return Promise.resolve() // Create Offer or Answer.
      .then(function () {
        if (type === 'offer') {
          return connection.createOffer(constraints).catch(function (error) {
            debugerror('emit "peerconnection:createofferfailed" [error:%o]', error);

            _this13.emit('peerconnection:createofferfailed', error);

            return Promise.reject(error);
          });
        } else {
          return connection.createAnswer(constraints).catch(function (error) {
            debugerror('emit "peerconnection:createanswerfailed" [error:%o]', error);

            _this13.emit('peerconnection:createanswerfailed', error);

            return Promise.reject(error);
          });
        }
      }) // Set local description.
      .then(function (desc) {
        return connection.setLocalDescription(desc).catch(function (error) {
          _this13._rtcReady = true;
          debugerror('emit "peerconnection:setlocaldescriptionfailed" [error:%o]', error);

          _this13.emit('peerconnection:setlocaldescriptionfailed', error);

          return Promise.reject(error);
        });
      }).then(function () {
        // Resolve right away if 'pc.iceGatheringState' is 'complete'.
        if (connection.iceGatheringState === 'complete') {
          _this13._rtcReady = true;
          var e = {
            originator: 'local',
            type: type,
            sdp: connection.localDescription.sdp
          };
          debug('emit "sdp"');

          _this13.emit('sdp', e);

          return Promise.resolve(e.sdp);
        } // Add 'pc.onicencandidate' event handler to resolve on last candidate.


        return new Promise(function (resolve) {
          var finished = false;
          var listener;

          var ready = function ready() {
            connection.removeEventListener('icecandidate', listener);
            finished = true;
            _this13._rtcReady = true;
            var e = {
              originator: 'local',
              type: type,
              sdp: connection.localDescription.sdp
            };
            debug('emit "sdp"');

            _this13.emit('sdp', e);

            resolve(e.sdp);
          };

          connection.addEventListener('icecandidate', listener = function listener(event) {
            var candidate = event.candidate;

            if (candidate) {
              _this13.emit('icecandidate', {
                candidate: candidate,
                ready: ready
              });
            } else if (!finished) {
              ready();
            }
          });
        });
      });
    }
    /**
     * Dialog Management
     */

  }, {
    key: "_createDialog",
    value: function _createDialog(message, type, early) {
      var local_tag = type === 'UAS' ? message.to_tag : message.from_tag;
      var remote_tag = type === 'UAS' ? message.from_tag : message.to_tag;
      var id = message.call_id + local_tag + remote_tag;
      var early_dialog = this._earlyDialogs[id]; // Early Dialog.

      if (early) {
        if (early_dialog) {
          return true;
        } else {
          early_dialog = new Dialog(this, message, type, Dialog.C.STATUS_EARLY); // Dialog has been successfully created.

          if (early_dialog.error) {
            debug(early_dialog.error);

            this._failed('remote', message, JsSIP_C.causes.INTERNAL_ERROR);

            return false;
          } else {
            this._earlyDialogs[id] = early_dialog;
            return true;
          }
        }
      } // Confirmed Dialog.
      else {
          this._from_tag = message.from_tag;
          this._to_tag = message.to_tag; // In case the dialog is in _early_ state, update it.

          if (early_dialog) {
            early_dialog.update(message, type);
            this._dialog = early_dialog;
            delete this._earlyDialogs[id];
            return true;
          } // Otherwise, create a _confirmed_ dialog.


          var dialog = new Dialog(this, message, type);

          if (dialog.error) {
            debug(dialog.error);

            this._failed('remote', message, JsSIP_C.causes.INTERNAL_ERROR);

            return false;
          } else {
            this._dialog = dialog;
            return true;
          }
        }
    }
    /**
     * In dialog INVITE Reception
     */

  }, {
    key: "_receiveReinvite",
    value: function _receiveReinvite(request) {
      var _this14 = this;

      debug('receiveReinvite()');
      var contentType = request.getHeader('Content-Type');
      var data = {
        request: request,
        callback: undefined,
        reject: reject.bind(this)
      };
      var rejected = false;

      function reject() {
        var options = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};
        rejected = true;
        var status_code = options.status_code || 403;
        var reason_phrase = options.reason_phrase || '';
        var extraHeaders = Utils.cloneArray(options.extraHeaders);

        if (this._status !== C.STATUS_CONFIRMED) {
          return false;
        }

        if (status_code < 300 || status_code >= 700) {
          throw new TypeError("Invalid status_code: ".concat(status_code));
        }

        request.reply(status_code, reason_phrase, extraHeaders);
      } // Emit 'reinvite'.


      this.emit('reinvite', data);

      if (rejected) {
        return;
      }

      this._late_sdp = false; // Request without SDP.

      if (!request.body) {
        this._late_sdp = true;
        this._connectionPromiseQueue = this._connectionPromiseQueue.then(function () {
          return _this14._createLocalDescription('offer', _this14._rtcOfferConstraints);
        }).then(function (sdp) {
          sendAnswer.call(_this14, sdp);
        }).catch(function () {
          request.reply(500);
        });
        return;
      } // Request with SDP.


      if (contentType !== 'application/sdp') {
        debug('invalid Content-Type');
        request.reply(415);
        return;
      }

      this._processInDialogSdpOffer(request) // Send answer.
      .then(function (desc) {
        if (_this14._status === C.STATUS_TERMINATED) {
          return;
        }

        sendAnswer.call(_this14, desc);
      }).catch(function (error) {
        debugerror(error);
      });

      function sendAnswer(desc) {
        var _this15 = this;

        var extraHeaders = ["Contact: ".concat(this._contact)];

        this._handleSessionTimersInIncomingRequest(request, extraHeaders);

        if (this._late_sdp) {
          desc = this._mangleOffer(desc);
        }

        request.reply(200, null, extraHeaders, desc, function () {
          _this15._status = C.STATUS_WAITING_FOR_ACK;

          _this15._setInvite2xxTimer(request, desc);

          _this15._setACKTimer();
        }); // If callback is given execute it.

        if (typeof data.callback === 'function') {
          data.callback();
        }
      }
    }
    /**
     * In dialog UPDATE Reception
     */

  }, {
    key: "_receiveUpdate",
    value: function _receiveUpdate(request) {
      var _this16 = this;

      debug('receiveUpdate()');
      var contentType = request.getHeader('Content-Type');
      var data = {
        request: request,
        callback: undefined,
        reject: reject.bind(this)
      };
      var rejected = false;

      function reject() {
        var options = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};
        rejected = true;
        var status_code = options.status_code || 403;
        var reason_phrase = options.reason_phrase || '';
        var extraHeaders = Utils.cloneArray(options.extraHeaders);

        if (this._status !== C.STATUS_CONFIRMED) {
          return false;
        }

        if (status_code < 300 || status_code >= 700) {
          throw new TypeError("Invalid status_code: ".concat(status_code));
        }

        request.reply(status_code, reason_phrase, extraHeaders);
      } // Emit 'update'.


      this.emit('update', data);

      if (rejected) {
        return;
      }

      if (!request.body) {
        sendAnswer.call(this, null);
        return;
      }

      if (contentType !== 'application/sdp') {
        debug('invalid Content-Type');
        request.reply(415);
        return;
      }

      this._processInDialogSdpOffer(request) // Send answer.
      .then(function (desc) {
        if (_this16._status === C.STATUS_TERMINATED) {
          return;
        }

        sendAnswer.call(_this16, desc);
      }).catch(function (error) {
        debugerror(error);
      });

      function sendAnswer(desc) {
        var extraHeaders = ["Contact: ".concat(this._contact)];

        this._handleSessionTimersInIncomingRequest(request, extraHeaders);

        request.reply(200, null, extraHeaders, desc); // If callback is given execute it.

        if (typeof data.callback === 'function') {
          data.callback();
        }
      }
    }
  }, {
    key: "_processInDialogSdpOffer",
    value: function _processInDialogSdpOffer(request) {
      var _this17 = this;

      debug('_processInDialogSdpOffer()');
      var sdp = request.parseSDP();
      var hold = false;
      var _iteratorNormalCompletion4 = true;
      var _didIteratorError4 = false;
      var _iteratorError4 = undefined;

      try {
        for (var _iterator4 = sdp.media[Symbol.iterator](), _step4; !(_iteratorNormalCompletion4 = (_step4 = _iterator4.next()).done); _iteratorNormalCompletion4 = true) {
          var m = _step4.value;

          if (holdMediaTypes.indexOf(m.type) === -1) {
            continue;
          }

          var direction = m.direction || sdp.direction || 'sendrecv';

          if (direction === 'sendonly' || direction === 'inactive') {
            hold = true;
          } // If at least one of the streams is active don't emit 'hold'.
          else {
              hold = false;
              break;
            }
        }
      } catch (err) {
        _didIteratorError4 = true;
        _iteratorError4 = err;
      } finally {
        try {
          if (!_iteratorNormalCompletion4 && _iterator4.return != null) {
            _iterator4.return();
          }
        } finally {
          if (_didIteratorError4) {
            throw _iteratorError4;
          }
        }
      }

      var e = {
        originator: 'remote',
        type: 'offer',
        sdp: request.body
      };
      debug('emit "sdp"');
      this.emit('sdp', e);
      var offer = new RTCSessionDescription({
        type: 'offer',
        sdp: e.sdp
      });
      this._connectionPromiseQueue = this._connectionPromiseQueue // Set remote description.
      .then(function () {
        if (_this17._status === C.STATUS_TERMINATED) {
          throw new Error('terminated');
        }

        return _this17._connection.setRemoteDescription(offer).catch(function (error) {
          request.reply(488);
          debugerror('emit "peerconnection:setremotedescriptionfailed" [error:%o]', error);

          _this17.emit('peerconnection:setremotedescriptionfailed', error);

          throw new Error('peerconnection.setRemoteDescription() failed');
        });
      }).then(function () {
        if (_this17._status === C.STATUS_TERMINATED) {
          throw new Error('terminated');
        }

        if (_this17._remoteHold === true && hold === false) {
          _this17._remoteHold = false;

          _this17._onunhold('remote');
        } else if (_this17._remoteHold === false && hold === true) {
          _this17._remoteHold = true;

          _this17._onhold('remote');
        }
      }) // Create local description.
      .then(function () {
        if (_this17._status === C.STATUS_TERMINATED) {
          throw new Error('terminated');
        }

        return _this17._createLocalDescription('answer', _this17._rtcAnswerConstraints).catch(function () {
          request.reply(500);
          throw new Error('_createLocalDescription() failed');
        });
      });
      return this._connectionPromiseQueue;
    }
    /**
     * In dialog Refer Reception
     */

  }, {
    key: "_receiveRefer",
    value: function _receiveRefer(request) {
      var _this18 = this;

      debug('receiveRefer()');

      if (!request.refer_to) {
        debug('no Refer-To header field present in REFER');
        request.reply(400);
        return;
      }

      if (request.refer_to.uri.scheme !== JsSIP_C.SIP) {
        debug('Refer-To header field points to a non-SIP URI scheme');
        request.reply(416);
        return;
      } // Reply before the transaction timer expires.


      request.reply(202);
      var notifier = new RTCSession_ReferNotifier(this, request.cseq);
      debug('emit "refer"'); // Emit 'refer'.

      this.emit('refer', {
        request: request,
        accept: function accept(initCallback, options) {
          _accept.call(_this18, initCallback, options);
        },
        reject: function reject() {
          _reject.call(_this18);
        }
      });

      function _accept(initCallback) {
        var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
        initCallback = typeof initCallback === 'function' ? initCallback : null;

        if (this._status !== C.STATUS_WAITING_FOR_ACK && this._status !== C.STATUS_CONFIRMED) {
          return false;
        }

        var session = new RTCSession(this._ua);
        session.on('progress', function (_ref2) {
          var response = _ref2.response;
          notifier.notify(response.status_code, response.reason_phrase);
        });
        session.on('accepted', function (_ref3) {
          var response = _ref3.response;
          notifier.notify(response.status_code, response.reason_phrase);
        });
        session.on('_failed', function (_ref4) {
          var message = _ref4.message,
              cause = _ref4.cause;

          if (message) {
            notifier.notify(message.status_code, message.reason_phrase);
          } else {
            notifier.notify(487, cause);
          }
        }); // Consider the Replaces header present in the Refer-To URI.

        if (request.refer_to.uri.hasHeader('replaces')) {
          var replaces = decodeURIComponent(request.refer_to.uri.getHeader('replaces'));
          options.extraHeaders = Utils.cloneArray(options.extraHeaders);
          options.extraHeaders.push("Replaces: ".concat(replaces));
        }

        session.connect(request.refer_to.uri.toAor(), options, initCallback);
      }

      function _reject() {
        notifier.notify(603);
      }
    }
    /**
     * In dialog Notify Reception
     */

  }, {
    key: "_receiveNotify",
    value: function _receiveNotify(request) {
      debug('receiveNotify()');

      if (!request.event) {
        request.reply(400);
      }

      switch (request.event.event) {
        case 'refer':
          {
            var id;
            var referSubscriber;

            if (request.event.params && request.event.params.id) {
              id = request.event.params.id;
              referSubscriber = this._referSubscribers[id];
            } else if (Object.keys(this._referSubscribers).length === 1) {
              referSubscriber = this._referSubscribers[Object.keys(this._referSubscribers)[0]];
            } else {
              request.reply(400, 'Missing event id parameter');
              return;
            }

            if (!referSubscriber) {
              request.reply(481, 'Subscription does not exist');
              return;
            }

            referSubscriber.receiveNotify(request);
            request.reply(200);
            break;
          }

        default:
          {
            request.reply(489);
          }
      }
    }
    /**
     * INVITE with Replaces Reception
     */

  }, {
    key: "_receiveReplaces",
    value: function _receiveReplaces(request) {
      var _this20 = this;

      debug('receiveReplaces()');

      function _accept2(initCallback) {
        var _this19 = this;

        if (this._status !== C.STATUS_WAITING_FOR_ACK && this._status !== C.STATUS_CONFIRMED) {
          return false;
        }

        var session = new RTCSession(this._ua); // Terminate the current session when the new one is confirmed.

        session.on('confirmed', function () {
          _this19.terminate();
        });
        session.init_incoming(request, initCallback);
      }

      function _reject2() {
        debug('Replaced INVITE rejected by the user');
        request.reply(486);
      } // Emit 'replace'.


      this.emit('replaces', {
        request: request,
        accept: function accept(initCallback) {
          _accept2.call(_this20, initCallback);
        },
        reject: function reject() {
          _reject2.call(_this20);
        }
      });
    }
    /**
     * Initial Request Sender
     */

  }, {
    key: "_sendInitialRequest",
    value: function _sendInitialRequest(mediaConstraints, rtcOfferConstraints, mediaStream) {
      var _this21 = this;

      var request_sender = new RequestSender(this._ua, this._request, {
        onRequestTimeout: function onRequestTimeout() {
          _this21.onRequestTimeout();
        },
        onTransportError: function onTransportError() {
          _this21.onTransportError();
        },
        // Update the request on authentication.
        onAuthenticated: function onAuthenticated(request) {
          _this21._request = request;
        },
        onReceiveResponse: function onReceiveResponse(response) {
          _this21._receiveInviteResponse(response);
        }
      }); // This Promise is resolved within the next iteration, so the app has now
      // a chance to set events such as 'peerconnection' and 'connecting'.

      Promise.resolve() // Get a stream if required.
      .then(function () {
        // A stream is given, let the app set events such as 'peerconnection' and 'connecting'.
        if (mediaStream) {
          return mediaStream;
        } // Request for user media access.
        else if (mediaConstraints.audio || mediaConstraints.video) {
            _this21._localMediaStreamLocallyGenerated = true;
            return navigator.mediaDevices.getUserMedia(mediaConstraints).catch(function (error) {
              if (_this21._status === C.STATUS_TERMINATED) {
                throw new Error('terminated');
              }

              _this21._failed('local', null, JsSIP_C.causes.USER_DENIED_MEDIA_ACCESS);

              debugerror('emit "getusermediafailed" [error:%o]', error);

              _this21.emit('getusermediafailed', error);

              throw error;
            });
          }
      }).then(function (stream) {
        if (_this21._status === C.STATUS_TERMINATED) {
          throw new Error('terminated');
        }

        _this21._localMediaStream = stream;

        if (stream) {
          var isSafari = /^((?!chrome|android).)*safari/i.test(navigator.userAgent);
          if(isSafari) {
            _this21._connection.addStream(stream);
          } else {
            stream.getTracks().forEach(function (track) {
              _this21._connection.addTrack(track, stream);
            });
          }          
        } // TODO: should this be triggered here?


        _this21._connecting(_this21._request);

        return _this21._createLocalDescription('offer', rtcOfferConstraints).catch(function (error) {
          _this21._failed('local', null, JsSIP_C.causes.WEBRTC_ERROR);

          throw error;
        });
      }).then(function (desc) {
        if (_this21._is_canceled || _this21._status === C.STATUS_TERMINATED) {
          throw new Error('terminated');
        }

        _this21._request.body = desc;
        _this21._status = C.STATUS_INVITE_SENT;
        debug('emit "sending" [request:%o]', _this21._request); // Emit 'sending' so the app can mangle the body before the request is sent.

        _this21.emit('sending', {
          request: _this21._request
        });

        request_sender.send();
      }).catch(function (error) {
        if (_this21._status === C.STATUS_TERMINATED) {
          return;
        }

        debugerror(error);
      });
    }
    /**
     * Reception of Response for Initial INVITE
     */

  }, {
    key: "_receiveInviteResponse",
    value: function _receiveInviteResponse(response) {
      var _this22 = this;

      debug('receiveInviteResponse()'); // Handle 2XX retransmissions and responses from forked requests.

      if (this._dialog && response.status_code >= 200 && response.status_code <= 299) {
        /*
         * If it is a retransmission from the endpoint that established
         * the dialog, send an ACK
         */
        if (this._dialog.id.call_id === response.call_id && this._dialog.id.local_tag === response.from_tag && this._dialog.id.remote_tag === response.to_tag) {
          this.sendRequest(JsSIP_C.ACK);
          return;
        } // If not, send an ACK  and terminate.
        else {
            var dialog = new Dialog(this, response, 'UAC');

            if (dialog.error !== undefined) {
              debug(dialog.error);
              return;
            }

            this.sendRequest(JsSIP_C.ACK);
            this.sendRequest(JsSIP_C.BYE);
            return;
          }
      } // Proceed to cancellation if the user requested.


      if (this._is_canceled) {
        if (response.status_code >= 100 && response.status_code < 200) {
          this._request.cancel(this._cancel_reason);
        } else if (response.status_code >= 200 && response.status_code < 299) {
          this._acceptAndTerminate(response);
        }

        return;
      }

      if (this._status !== C.STATUS_INVITE_SENT && this._status !== C.STATUS_1XX_RECEIVED) {
        return;
      }

      switch (true) {
        case /^100$/.test(response.status_code):
          this._status = C.STATUS_1XX_RECEIVED;
          break;

        case /^1[0-9]{2}$/.test(response.status_code):
          {
            // Do nothing with 1xx responses without To tag.
            if (!response.to_tag) {
              debug('1xx response received without to tag');
              break;
            } // Create Early Dialog if 1XX comes with contact.


            if (response.hasHeader('contact')) {
              // An error on dialog creation will fire 'failed' event.
              if (!this._createDialog(response, 'UAC', true)) {
                break;
              }
            }

            this._status = C.STATUS_1XX_RECEIVED;

            this._progress('remote', response);

            if (!response.body) {
              break;
            }

            var e = {
              originator: 'remote',
              type: 'answer',
              sdp: response.body
            };
            debug('emit "sdp"');
            this.emit('sdp', e);
            var answer = new RTCSessionDescription({
              type: 'answer',
              sdp: e.sdp
            });
            this._connectionPromiseQueue = this._connectionPromiseQueue.then(function () {
              return _this22._connection.setRemoteDescription(answer);
            }).catch(function (error) {
              debugerror('emit "peerconnection:setremotedescriptionfailed" [error:%o]', error);

              _this22.emit('peerconnection:setremotedescriptionfailed', error);
            });
            break;
          }

        case /^2[0-9]{2}$/.test(response.status_code):
          {
            this._status = C.STATUS_CONFIRMED;

            if (!response.body) {
              this._acceptAndTerminate(response, 400, JsSIP_C.causes.MISSING_SDP);

              this._failed('remote', response, JsSIP_C.causes.BAD_MEDIA_DESCRIPTION);

              break;
            } // An error on dialog creation will fire 'failed' event.


            if (!this._createDialog(response, 'UAC')) {
              break;
            }

            var _e = {
              originator: 'remote',
              type: 'answer',
              sdp: response.body
            };
            debug('emit "sdp"');
            this.emit('sdp', _e);

            var _answer = new RTCSessionDescription({
              type: 'answer',
              sdp: _e.sdp
            });

            this._connectionPromiseQueue = this._connectionPromiseQueue.then(function () {
              // Be ready for 200 with SDP after a 180/183 with SDP.
              // We created a SDP 'answer' for it, so check the current signaling state.
              if (_this22._connection.signalingState === 'stable') {
                return _this22._connection.createOffer(_this22._rtcOfferConstraints).then(function (offer) {
                  return _this22._connection.setLocalDescription(offer);
                }).catch(function (error) {
                  _this22._acceptAndTerminate(response, 500, error.toString());

                  _this22._failed('local', response, JsSIP_C.causes.WEBRTC_ERROR);
                });
              }
            }).then(function () {
              _this22._connection.setRemoteDescription(_answer).then(function () {
                // Handle Session Timers.
                _this22._handleSessionTimersInIncomingResponse(response);

                _this22._accepted('remote', response);

                _this22.sendRequest(JsSIP_C.ACK);

                _this22._confirmed('local', null);
              }).catch(function (error) {
                _this22._acceptAndTerminate(response, 488, 'Not Acceptable Here');

                _this22._failed('remote', response, JsSIP_C.causes.BAD_MEDIA_DESCRIPTION);

                debugerror('emit "peerconnection:setremotedescriptionfailed" [error:%o]', error);

                _this22.emit('peerconnection:setremotedescriptionfailed', error);
              });
            });
            break;
          }

        default:
          {
            var cause = Utils.sipErrorCause(response.status_code);

            this._failed('remote', response, cause);
          }
      }
    }
    /**
     * Send Re-INVITE
     */

  }, {
    key: "_sendReinvite",
    value: function _sendReinvite() {
      var _this23 = this;

      var options = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};
      debug('sendReinvite()');
      var extraHeaders = Utils.cloneArray(options.extraHeaders);
      var eventHandlers = options.eventHandlers || {};
      var rtcOfferConstraints = options.rtcOfferConstraints || this._rtcOfferConstraints || null;
      var succeeded = false;
      extraHeaders.push("Contact: ".concat(this._contact));
      extraHeaders.push('Content-Type: application/sdp'); // Session Timers.

      if (this._sessionTimers.running) {
        extraHeaders.push("Session-Expires: ".concat(this._sessionTimers.currentExpires, ";refresher=").concat(this._sessionTimers.refresher ? 'uac' : 'uas'));
      }

      this._connectionPromiseQueue = this._connectionPromiseQueue.then(function () {
        return _this23._createLocalDescription('offer', rtcOfferConstraints);
      }).then(function (sdp) {
        sdp = _this23._mangleOffer(sdp);
        var e = {
          originator: 'local',
          type: 'offer',
          sdp: sdp
        };
        debug('emit "sdp"');

        _this23.emit('sdp', e);

        _this23.sendRequest(JsSIP_C.INVITE, {
          extraHeaders: extraHeaders,
          body: sdp,
          eventHandlers: {
            onSuccessResponse: function onSuccessResponse(response) {
              onSucceeded.call(_this23, response);
              succeeded = true;
            },
            onErrorResponse: function onErrorResponse(response) {
              onFailed.call(_this23, response);
            },
            onTransportError: function onTransportError() {
              _this23.onTransportError(); // Do nothing because session ends.

            },
            onRequestTimeout: function onRequestTimeout() {
              _this23.onRequestTimeout(); // Do nothing because session ends.

            },
            onDialogError: function onDialogError() {
              _this23.onDialogError(); // Do nothing because session ends.

            }
          }
        });
      }).catch(function () {
        onFailed();
      });

      function onSucceeded(response) {
        var _this24 = this;

        if (this._status === C.STATUS_TERMINATED) {
          return;
        }

        this.sendRequest(JsSIP_C.ACK); // If it is a 2XX retransmission exit now.

        if (succeeded) {
          return;
        } // Handle Session Timers.


        this._handleSessionTimersInIncomingResponse(response); // Must have SDP answer.


        if (!response.body) {
          onFailed.call(this);
          return;
        } else if (response.getHeader('Content-Type') !== 'application/sdp') {
          onFailed.call(this);
          return;
        }

        var e = {
          originator: 'remote',
          type: 'answer',
          sdp: response.body
        };
        debug('emit "sdp"');
        this.emit('sdp', e);
        var answer = new RTCSessionDescription({
          type: 'answer',
          sdp: e.sdp
        });
        this._connectionPromiseQueue = this._connectionPromiseQueue.then(function () {
          return _this24._connection.setRemoteDescription(answer);
        }).then(function () {
          if (eventHandlers.succeeded) {
            eventHandlers.succeeded(response);
          }
        }).catch(function (error) {
          onFailed.call(_this24);
          debugerror('emit "peerconnection:setremotedescriptionfailed" [error:%o]', error);

          _this24.emit('peerconnection:setremotedescriptionfailed', error);
        });
      }

      function onFailed(response) {
        if (eventHandlers.failed) {
          eventHandlers.failed(response);
        }
      }
    }
    /**
     * Send UPDATE
     */

  }, {
    key: "_sendUpdate",
    value: function _sendUpdate() {
      var _this25 = this;

      var options = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};
      debug('sendUpdate()');
      var extraHeaders = Utils.cloneArray(options.extraHeaders);
      var eventHandlers = options.eventHandlers || {};
      var rtcOfferConstraints = options.rtcOfferConstraints || this._rtcOfferConstraints || null;
      var sdpOffer = options.sdpOffer || false;
      var succeeded = false;
      extraHeaders.push("Contact: ".concat(this._contact)); // Session Timers.

      if (this._sessionTimers.running) {
        extraHeaders.push("Session-Expires: ".concat(this._sessionTimers.currentExpires, ";refresher=").concat(this._sessionTimers.refresher ? 'uac' : 'uas'));
      }

      if (sdpOffer) {
        extraHeaders.push('Content-Type: application/sdp');
        this._connectionPromiseQueue = this._connectionPromiseQueue.then(function () {
          return _this25._createLocalDescription('offer', rtcOfferConstraints);
        }).then(function (sdp) {
          sdp = _this25._mangleOffer(sdp);
          var e = {
            originator: 'local',
            type: 'offer',
            sdp: sdp
          };
          debug('emit "sdp"');

          _this25.emit('sdp', e);

          _this25.sendRequest(JsSIP_C.UPDATE, {
            extraHeaders: extraHeaders,
            body: sdp,
            eventHandlers: {
              onSuccessResponse: function onSuccessResponse(response) {
                onSucceeded.call(_this25, response);
                succeeded = true;
              },
              onErrorResponse: function onErrorResponse(response) {
                onFailed.call(_this25, response);
              },
              onTransportError: function onTransportError() {
                _this25.onTransportError(); // Do nothing because session ends.

              },
              onRequestTimeout: function onRequestTimeout() {
                _this25.onRequestTimeout(); // Do nothing because session ends.

              },
              onDialogError: function onDialogError() {
                _this25.onDialogError(); // Do nothing because session ends.

              }
            }
          });
        }).catch(function () {
          onFailed.call(_this25);
        });
      } // No SDP.
      else {
          this.sendRequest(JsSIP_C.UPDATE, {
            extraHeaders: extraHeaders,
            eventHandlers: {
              onSuccessResponse: function onSuccessResponse(response) {
                onSucceeded.call(_this25, response);
              },
              onErrorResponse: function onErrorResponse(response) {
                onFailed.call(_this25, response);
              },
              onTransportError: function onTransportError() {
                _this25.onTransportError(); // Do nothing because session ends.

              },
              onRequestTimeout: function onRequestTimeout() {
                _this25.onRequestTimeout(); // Do nothing because session ends.

              },
              onDialogError: function onDialogError() {
                _this25.onDialogError(); // Do nothing because session ends.

              }
            }
          });
        }

      function onSucceeded(response) {
        var _this26 = this;

        if (this._status === C.STATUS_TERMINATED) {
          return;
        } // If it is a 2XX retransmission exit now.


        if (succeeded) {
          return;
        } // Handle Session Timers.


        this._handleSessionTimersInIncomingResponse(response); // Must have SDP answer.


        if (sdpOffer) {
          if (!response.body) {
            onFailed.call(this);
            return;
          } else if (response.getHeader('Content-Type') !== 'application/sdp') {
            onFailed.call(this);
            return;
          }

          var e = {
            originator: 'remote',
            type: 'answer',
            sdp: response.body
          };
          debug('emit "sdp"');
          this.emit('sdp', e);
          var answer = new RTCSessionDescription({
            type: 'answer',
            sdp: e.sdp
          });
          this._connectionPromiseQueue = this._connectionPromiseQueue.then(function () {
            return _this26._connection.setRemoteDescription(answer);
          }).then(function () {
            if (eventHandlers.succeeded) {
              eventHandlers.succeeded(response);
            }
          }).catch(function (error) {
            onFailed.call(_this26);
            debugerror('emit "peerconnection:setremotedescriptionfailed" [error:%o]', error);

            _this26.emit('peerconnection:setremotedescriptionfailed', error);
          });
        } // No SDP answer.
        else if (eventHandlers.succeeded) {
            eventHandlers.succeeded(response);
          }
      }

      function onFailed(response) {
        if (eventHandlers.failed) {
          eventHandlers.failed(response);
        }
      }
    }
  }, {
    key: "_acceptAndTerminate",
    value: function _acceptAndTerminate(response, status_code, reason_phrase) {
      debug('acceptAndTerminate()');
      var extraHeaders = [];

      if (status_code) {
        reason_phrase = reason_phrase || JsSIP_C.REASON_PHRASE[status_code] || '';
        extraHeaders.push("Reason: SIP ;cause=".concat(status_code, "; text=\"").concat(reason_phrase, "\""));
      } // An error on dialog creation will fire 'failed' event.


      if (this._dialog || this._createDialog(response, 'UAC')) {
        this.sendRequest(JsSIP_C.ACK);
        this.sendRequest(JsSIP_C.BYE, {
          extraHeaders: extraHeaders
        });
      } // Update session status.


      this._status = C.STATUS_TERMINATED;
    }
    /**
     * Correctly set the SDP direction attributes if the call is on local hold
     */

  }, {
    key: "_mangleOffer",
    value: function _mangleOffer(sdp) {
      if (!this._localHold && !this._remoteHold) {
        return sdp;
      }

      sdp = sdp_transform.parse(sdp); // Local hold.

      if (this._localHold && !this._remoteHold) {
        debug('mangleOffer() | me on hold, mangling offer');
        var _iteratorNormalCompletion5 = true;
        var _didIteratorError5 = false;
        var _iteratorError5 = undefined;

        try {
          for (var _iterator5 = sdp.media[Symbol.iterator](), _step5; !(_iteratorNormalCompletion5 = (_step5 = _iterator5.next()).done); _iteratorNormalCompletion5 = true) {
            var m = _step5.value;

            if (holdMediaTypes.indexOf(m.type) === -1) {
              continue;
            }

            if (!m.direction) {
              m.direction = 'sendonly';
            } else if (m.direction === 'sendrecv') {
              m.direction = 'sendonly';
            } else if (m.direction === 'recvonly') {
              m.direction = 'inactive';
            }
          }
        } catch (err) {
          _didIteratorError5 = true;
          _iteratorError5 = err;
        } finally {
          try {
            if (!_iteratorNormalCompletion5 && _iterator5.return != null) {
              _iterator5.return();
            }
          } finally {
            if (_didIteratorError5) {
              throw _iteratorError5;
            }
          }
        }
      } // Local and remote hold.
      else if (this._localHold && this._remoteHold) {
          debug('mangleOffer() | both on hold, mangling offer');
          var _iteratorNormalCompletion6 = true;
          var _didIteratorError6 = false;
          var _iteratorError6 = undefined;

          try {
            for (var _iterator6 = sdp.media[Symbol.iterator](), _step6; !(_iteratorNormalCompletion6 = (_step6 = _iterator6.next()).done); _iteratorNormalCompletion6 = true) {
              var _m = _step6.value;

              if (holdMediaTypes.indexOf(_m.type) === -1) {
                continue;
              }

              _m.direction = 'inactive';
            }
          } catch (err) {
            _didIteratorError6 = true;
            _iteratorError6 = err;
          } finally {
            try {
              if (!_iteratorNormalCompletion6 && _iterator6.return != null) {
                _iterator6.return();
              }
            } finally {
              if (_didIteratorError6) {
                throw _iteratorError6;
              }
            }
          }
        } // Remote hold.
        else if (this._remoteHold) {
            debug('mangleOffer() | remote on hold, mangling offer');
            var _iteratorNormalCompletion7 = true;
            var _didIteratorError7 = false;
            var _iteratorError7 = undefined;

            try {
              for (var _iterator7 = sdp.media[Symbol.iterator](), _step7; !(_iteratorNormalCompletion7 = (_step7 = _iterator7.next()).done); _iteratorNormalCompletion7 = true) {
                var _m2 = _step7.value;

                if (holdMediaTypes.indexOf(_m2.type) === -1) {
                  continue;
                }

                if (!_m2.direction) {
                  _m2.direction = 'recvonly';
                } else if (_m2.direction === 'sendrecv') {
                  _m2.direction = 'recvonly';
                } else if (_m2.direction === 'recvonly') {
                  _m2.direction = 'inactive';
                }
              }
            } catch (err) {
              _didIteratorError7 = true;
              _iteratorError7 = err;
            } finally {
              try {
                if (!_iteratorNormalCompletion7 && _iterator7.return != null) {
                  _iterator7.return();
                }
              } finally {
                if (_didIteratorError7) {
                  throw _iteratorError7;
                }
              }
            }
          }

      return sdp_transform.write(sdp);
    }
  }, {
    key: "_setLocalMediaStatus",
    value: function _setLocalMediaStatus() {
      var enableAudio = true,
          enableVideo = true;

      if (this._localHold || this._remoteHold) {
        enableAudio = false;
        enableVideo = false;
      }

      if (this._audioMuted) {
        enableAudio = false;
      }

      if (this._videoMuted) {
        enableVideo = false;
      }

      this._toggleMuteAudio(!enableAudio);

      this._toggleMuteVideo(!enableVideo);
    }
    /**
     * Handle SessionTimers for an incoming INVITE or UPDATE.
     * @param  {IncomingRequest} request
     * @param  {Array} responseExtraHeaders  Extra headers for the 200 response.
     */

  }, {
    key: "_handleSessionTimersInIncomingRequest",
    value: function _handleSessionTimersInIncomingRequest(request, responseExtraHeaders) {
      if (!this._sessionTimers.enabled) {
        return;
      }

      var session_expires_refresher;

      if (request.session_expires && request.session_expires >= JsSIP_C.MIN_SESSION_EXPIRES) {
        this._sessionTimers.currentExpires = request.session_expires;
        session_expires_refresher = request.session_expires_refresher || 'uas';
      } else {
        this._sessionTimers.currentExpires = this._sessionTimers.defaultExpires;
        session_expires_refresher = 'uas';
      }

      responseExtraHeaders.push("Session-Expires: ".concat(this._sessionTimers.currentExpires, ";refresher=").concat(session_expires_refresher));
      this._sessionTimers.refresher = session_expires_refresher === 'uas';

      this._runSessionTimer();
    }
    /**
     * Handle SessionTimers for an incoming response to INVITE or UPDATE.
     * @param  {IncomingResponse} response
     */

  }, {
    key: "_handleSessionTimersInIncomingResponse",
    value: function _handleSessionTimersInIncomingResponse(response) {
      if (!this._sessionTimers.enabled) {
        return;
      }

      var session_expires_refresher;

      if (response.session_expires && response.session_expires >= JsSIP_C.MIN_SESSION_EXPIRES) {
        this._sessionTimers.currentExpires = response.session_expires;
        session_expires_refresher = response.session_expires_refresher || 'uac';
      } else {
        this._sessionTimers.currentExpires = this._sessionTimers.defaultExpires;
        session_expires_refresher = 'uac';
      }

      this._sessionTimers.refresher = session_expires_refresher === 'uac';

      this._runSessionTimer();
    }
  }, {
    key: "_runSessionTimer",
    value: function _runSessionTimer() {
      var _this27 = this;

      var expires = this._sessionTimers.currentExpires;
      this._sessionTimers.running = true;
      clearTimeout(this._sessionTimers.timer); // I'm the refresher.

      if (this._sessionTimers.refresher) {
        this._sessionTimers.timer = setTimeout(function () {
          if (_this27._status === C.STATUS_TERMINATED) {
            return;
          }

          debug('runSessionTimer() | sending session refresh request');

          if (_this27._sessionTimers.refreshMethod === JsSIP_C.UPDATE) {
            _this27._sendUpdate();
          } else {
            _this27._sendReinvite();
          }
        }, expires * 500); // Half the given interval (as the RFC states).
      } // I'm not the refresher.
      else {
          this._sessionTimers.timer = setTimeout(function () {
            if (_this27._status === C.STATUS_TERMINATED) {
              return;
            }

            debugerror('runSessionTimer() | timer expired, terminating the session');

            _this27.terminate({
              cause: JsSIP_C.causes.REQUEST_TIMEOUT,
              status_code: 408,
              reason_phrase: 'Session Timer Expired'
            });
          }, expires * 1100);
        }
    }
  }, {
    key: "_toggleMuteAudio",
    value: function _toggleMuteAudio(mute) {
      var senders = this._connection.getSenders().filter(function (sender) {
        return sender.track && sender.track.kind === 'audio';
      });

      var _iteratorNormalCompletion8 = true;
      var _didIteratorError8 = false;
      var _iteratorError8 = undefined;

      try {
        for (var _iterator8 = senders[Symbol.iterator](), _step8; !(_iteratorNormalCompletion8 = (_step8 = _iterator8.next()).done); _iteratorNormalCompletion8 = true) {
          var sender = _step8.value;
          sender.track.enabled = !mute;
        }
      } catch (err) {
        _didIteratorError8 = true;
        _iteratorError8 = err;
      } finally {
        try {
          if (!_iteratorNormalCompletion8 && _iterator8.return != null) {
            _iterator8.return();
          }
        } finally {
          if (_didIteratorError8) {
            throw _iteratorError8;
          }
        }
      }
    }
  }, {
    key: "_toggleMuteVideo",
    value: function _toggleMuteVideo(mute) {
      var senders = this._connection.getSenders().filter(function (sender) {
        return sender.track && sender.track.kind === 'video';
      });

      var _iteratorNormalCompletion9 = true;
      var _didIteratorError9 = false;
      var _iteratorError9 = undefined;

      try {
        for (var _iterator9 = senders[Symbol.iterator](), _step9; !(_iteratorNormalCompletion9 = (_step9 = _iterator9.next()).done); _iteratorNormalCompletion9 = true) {
          var sender = _step9.value;
          sender.track.enabled = !mute;
        }
      } catch (err) {
        _didIteratorError9 = true;
        _iteratorError9 = err;
      } finally {
        try {
          if (!_iteratorNormalCompletion9 && _iterator9.return != null) {
            _iterator9.return();
          }
        } finally {
          if (_didIteratorError9) {
            throw _iteratorError9;
          }
        }
      }
    }
  }, {
    key: "_newRTCSession",
    value: function _newRTCSession(originator, request) {
      debug('newRTCSession()');
      // const sessionId = request.call_id;
      // request.extraHeaders.push('Transaction-ID: ' + sessionId)
      PhoneNetwork.test();
      
      PhoneLogger.info({
        event: 'newRTCSession',
        data: {
          originator: originator,
          session: this,
          request: request
        }
      });
      this._ua.newRTCSession(this, {
        originator: originator,
        session: this,
        request: request
      });
    }
  }, {
    key: "_connecting",
    value: function _connecting(request) {
      debug('session connecting');
      debug('emit "connecting"');
      PhoneLogger.info({
        event: 'connecting',
        data: {
          request: request
        }
      });
      this.emit('connecting', {
        request: request
      });
      console.log('connecting A :'+request)
    }
  }, {
    key: "_progress",
    value: function _progress(originator, response) {
      debug('session progress');
      debug('emit "progress"');
      PhoneLogger.info({
        event: 'progress',
        data: {
          originator: originator,
          response: response || null
        }
      });
      this.emit('progress', {
        originator: originator,
        response: response || null
      });
    }
  }, {
    key: "_accepted",
    value: function _accepted(originator, message) {
      debug('session accepted');
      this._start_time = new Date();
      debug('emit "accepted"');
      PhoneLogger.info({
        event: 'accepted',
        data: {
          originator: originator,
          response: message || null
        }
      });
      this.emit('accepted', {
        originator: originator,
        response: message || null
      });
    }
  }, {
    key: "_confirmed",
    value: function _confirmed(originator, ack) {
      debug('session confirmed');
      this._is_confirmed = true;
      debug('emit "confirmed"');
      PhoneLogger.info({
        event: 'confirmed',
        data: {
          originator: originator,
          ack: ack || null
        }
      });
      this.emit('confirmed', {
        originator: originator,
        ack: ack || null
      });
    }
  }, {
    key: "_ended",
    value: function _ended(originator, message, cause) {
      debug('session ended');
      this._end_time = new Date();

      this._close();

      debug('emit "ended"');
      PhoneLogger.info({
        event: 'ended',
        data: {
          originator: originator,
          message: message || null,
          cause: cause
        }
      });
      this.emit('ended', {
        originator: originator,
        message: message || null,
        cause: cause
      });
    }
  }, {
    key: "_failed",
    value: function _failed(originator, message, cause) {
      debug('session failed'); // Emit private '_failed' event first.

      debug('emit "_failed"');
      this.emit('_failed', {
        originator: originator,
        message: message || null,
        cause: cause
      });

      this._close();
      PhoneLogger.error({
        event: 'sessionFailed',
        data: {
          originator: originator,
          message: message || null,
          cause: cause
        }
      });
      debug('emit "failed"');
      this.emit('failed', {
        originator: originator,
        message: message || null,
        cause: cause
      });
    }
  }, {
    key: "_onhold",
    value: function _onhold(originator) {
      debug('session onhold');

      this._setLocalMediaStatus();

      debug('emit "hold"');
      this.emit('hold', {
        originator: originator
      });
    }
  }, {
    key: "_onunhold",
    value: function _onunhold(originator) {
      debug('session onunhold');

      this._setLocalMediaStatus();

      debug('emit "unhold"');
      this.emit('unhold', {
        originator: originator
      });
    }
  }, {
    key: "_onmute",
    value: function _onmute(_ref5) {
      var audio = _ref5.audio,
          video = _ref5.video;
      debug('session onmute');

      this._setLocalMediaStatus();

      debug('emit "muted"');
      this.emit('muted', {
        audio: audio,
        video: video
      });
    }
  }, {
    key: "_onunmute",
    value: function _onunmute(_ref6) {
      var audio = _ref6.audio,
          video = _ref6.video;
      debug('session onunmute');

      this._setLocalMediaStatus();

      debug('emit "unmuted"');
      this.emit('unmuted', {
        audio: audio,
        video: video
      });
    }
  }, {
    key: "C",
    get: function get() {
      return C;
    } // Expose session failed/ended causes as a property of the RTCSession instance.

  }, {
    key: "causes",
    get: function get() {
      return JsSIP_C.causes;
    }
  }, {
    key: "id",
    get: function get() {
      return this._id;
    }
  }, {
    key: "connection",
    get: function get() {
      return this._connection;
    }
  }, {
    key: "contact",
    get: function get() {
      return this._contact;
    }
  }, {
    key: "direction",
    get: function get() {
      return this._direction;
    }
  }, {
    key: "local_identity",
    get: function get() {
      return this._local_identity;
    }
  }, {
    key: "remote_identity",
    get: function get() {
      return this._remote_identity;
    }
  }, {
    key: "start_time",
    get: function get() {
      return this._start_time;
    }
  }, {
    key: "end_time",
    get: function get() {
      return this._end_time;
    }
  }, {
    key: "data",
    get: function get() {
      return this._data;
    },
    set: function set(_data) {
      this._data = _data;
    }
  }, {
    key: "status",
    get: function get() {
      return this._status;
    }
  }]);

  return RTCSession;
}(EventEmitter);

}),
/* 18 */
(function(module, exports, __webpack_require__) {

"use strict";


var Utils = __webpack_require__(2);

var Grammar = __webpack_require__(3);

var debugerror = __webpack_require__(0)('JsSIP:ERROR:Socket');

debugerror.log = console.warn.bind(console);
/**
 * Interface documentation: https://jssip.net/documentation/$last_version/api/socket/
 *
 * interface Socket {
 *  attribute String via_transport
 *  attribute String url
 *  attribute String sip_uri
 *
 *  method connect();
 *  method disconnect();
 *  method send(data);
 *
 *  attribute EventHandler onconnect
 *  attribute EventHandler ondisconnect
 *  attribute EventHandler ondata
 * }
 *
 */

exports.isSocket = function (socket) {
  // Ignore if an array is given.
  if (Array.isArray(socket)) {
    return false;
  }

  if (typeof socket === 'undefined') {
    debugerror('undefined JsSIP.Socket instance');
    return false;
  } // Check Properties.


  try {
    if (!Utils.isString(socket.url)) {
      debugerror('missing or invalid JsSIP.Socket url property');
      throw new Error();
    }

    if (!Utils.isString(socket.via_transport)) {
      debugerror('missing or invalid JsSIP.Socket via_transport property');
      throw new Error();
    }

    if (Grammar.parse(socket.sip_uri, 'SIP_URI') === -1) {
      debugerror('missing or invalid JsSIP.Socket sip_uri property');
      throw new Error();
    }
  } catch (e) {
    return false;
  } // Check Methods.


  try {
    ['connect', 'disconnect', 'send'].forEach(function (method) {
      if (!Utils.isFunction(socket[method])) {
        debugerror("missing or invalid JsSIP.Socket method: ".concat(method));
        throw new Error();
      }
    });
  } catch (e) {
    return false;
  }

  return true;
};

}),
/* 19 */
(function(module, exports, __webpack_require__) {

"use strict";
/* eslint-env node */
 // SDP helpers.

var SDPUtils = {}; // Generate an alphanumeric identifier for cname or mids.
// TODO: use UUIDs instead? https://gist.github.com/jed/982883

SDPUtils.generateIdentifier = function () {
  return Math.random().toString(36).substr(2, 10);
}; // The RTCP CNAME used by all peerconnections from the same JS.


SDPUtils.localCName = SDPUtils.generateIdentifier(); // Splits SDP into lines, dealing with both CRLF and LF.

SDPUtils.splitLines = function (blob) {
  return blob.trim().split('\n').map(function (line) {
    return line.trim();
  });
}; // Splits SDP into sessionpart and mediasections. Ensures CRLF.


SDPUtils.splitSections = function (blob) {
  var parts = blob.split('\nm=');
  return parts.map(function (part, index) {
    return (index > 0 ? 'm=' + part : part).trim() + '\r\n';
  });
}; // returns the session description.


SDPUtils.getDescription = function (blob) {
  var sections = SDPUtils.splitSections(blob);
  return sections && sections[0];
}; // returns the individual media sections.


SDPUtils.getMediaSections = function (blob) {
  var sections = SDPUtils.splitSections(blob);
  sections.shift();
  return sections;
}; // Returns lines that start with a certain prefix.


SDPUtils.matchPrefix = function (blob, prefix) {
  return SDPUtils.splitLines(blob).filter(function (line) {
    return line.indexOf(prefix) === 0;
  });
}; // Parses an ICE candidate line. Sample input:
// candidate:702786350 2 udp 41819902 8.8.8.8 60769 typ relay raddr 8.8.8.8
// rport 55996"


SDPUtils.parseCandidate = function (line) {
  var parts; // Parse both variants.

  if (line.indexOf('a=candidate:') === 0) {
    parts = line.substring(12).split(' ');
  } else {
    parts = line.substring(10).split(' ');
  }

  var candidate = {
    foundation: parts[0],
    component: parseInt(parts[1], 10),
    protocol: parts[2].toLowerCase(),
    priority: parseInt(parts[3], 10),
    ip: parts[4],
    address: parts[4],
    // address is an alias for ip.
    port: parseInt(parts[5], 10),
    // skip parts[6] == 'typ'
    type: parts[7]
  };

  for (var i = 8; i < parts.length; i += 2) {
    switch (parts[i]) {
      case 'raddr':
        candidate.relatedAddress = parts[i + 1];
        break;

      case 'rport':
        candidate.relatedPort = parseInt(parts[i + 1], 10);
        break;

      case 'tcptype':
        candidate.tcpType = parts[i + 1];
        break;

      case 'ufrag':
        candidate.ufrag = parts[i + 1]; // for backward compability.

        candidate.usernameFragment = parts[i + 1];
        break;

      default:
        // extension handling, in particular ufrag
        candidate[parts[i]] = parts[i + 1];
        break;
    }
  }

  return candidate;
}; // Translates a candidate object into SDP candidate attribute.


SDPUtils.writeCandidate = function (candidate) {
  var sdp = [];
  sdp.push(candidate.foundation);
  sdp.push(candidate.component);
  sdp.push(candidate.protocol.toUpperCase());
  sdp.push(candidate.priority);
  sdp.push(candidate.address || candidate.ip);
  sdp.push(candidate.port);
  var type = candidate.type;
  sdp.push('typ');
  sdp.push(type);

  if (type !== 'host' && candidate.relatedAddress && candidate.relatedPort) {
    sdp.push('raddr');
    sdp.push(candidate.relatedAddress);
    sdp.push('rport');
    sdp.push(candidate.relatedPort);
  }

  if (candidate.tcpType && candidate.protocol.toLowerCase() === 'tcp') {
    sdp.push('tcptype');
    sdp.push(candidate.tcpType);
  }

  if (candidate.usernameFragment || candidate.ufrag) {
    sdp.push('ufrag');
    sdp.push(candidate.usernameFragment || candidate.ufrag);
  }

  return 'candidate:' + sdp.join(' ');
}; // Parses an ice-options line, returns an array of option tags.
// a=ice-options:foo bar


SDPUtils.parseIceOptions = function (line) {
  return line.substr(14).split(' ');
}; // Parses an rtpmap line, returns RTCRtpCoddecParameters. Sample input:
// a=rtpmap:111 opus/48000/2


SDPUtils.parseRtpMap = function (line) {
  var parts = line.substr(9).split(' ');
  var parsed = {
    payloadType: parseInt(parts.shift(), 10) // was: id

  };
  parts = parts[0].split('/');
  parsed.name = parts[0];
  parsed.clockRate = parseInt(parts[1], 10); // was: clockrate

  parsed.channels = parts.length === 3 ? parseInt(parts[2], 10) : 1; // legacy alias, got renamed back to channels in ORTC.

  parsed.numChannels = parsed.channels;
  return parsed;
}; // Generate an a=rtpmap line from RTCRtpCodecCapability or
// RTCRtpCodecParameters.


SDPUtils.writeRtpMap = function (codec) {
  var pt = codec.payloadType;

  if (codec.preferredPayloadType !== undefined) {
    pt = codec.preferredPayloadType;
  }

  var channels = codec.channels || codec.numChannels || 1;
  return 'a=rtpmap:' + pt + ' ' + codec.name + '/' + codec.clockRate + (channels !== 1 ? '/' + channels : '') + '\r\n';
}; // Parses an a=extmap line (headerextension from RFC 5285). Sample input:
// a=extmap:2 urn:ietf:params:rtp-hdrext:toffset
// a=extmap:2/sendonly urn:ietf:params:rtp-hdrext:toffset


SDPUtils.parseExtmap = function (line) {
  var parts = line.substr(9).split(' ');
  return {
    id: parseInt(parts[0], 10),
    direction: parts[0].indexOf('/') > 0 ? parts[0].split('/')[1] : 'sendrecv',
    uri: parts[1]
  };
}; // Generates a=extmap line from RTCRtpHeaderExtensionParameters or
// RTCRtpHeaderExtension.


SDPUtils.writeExtmap = function (headerExtension) {
  return 'a=extmap:' + (headerExtension.id || headerExtension.preferredId) + (headerExtension.direction && headerExtension.direction !== 'sendrecv' ? '/' + headerExtension.direction : '') + ' ' + headerExtension.uri + '\r\n';
}; // Parses an ftmp line, returns dictionary. Sample input:
// a=fmtp:96 vbr=on;cng=on
// Also deals with vbr=on; cng=on


SDPUtils.parseFmtp = function (line) {
  var parsed = {};
  var kv;
  var parts = line.substr(line.indexOf(' ') + 1).split(';');

  for (var j = 0; j < parts.length; j++) {
    kv = parts[j].trim().split('=');
    parsed[kv[0].trim()] = kv[1];
  }

  return parsed;
}; // Generates an a=ftmp line from RTCRtpCodecCapability or RTCRtpCodecParameters.


SDPUtils.writeFmtp = function (codec) {
  var line = '';
  var pt = codec.payloadType;

  if (codec.preferredPayloadType !== undefined) {
    pt = codec.preferredPayloadType;
  }

  if (codec.parameters && Object.keys(codec.parameters).length) {
    var params = [];
    Object.keys(codec.parameters).forEach(function (param) {
      if (codec.parameters[param]) {
        params.push(param + '=' + codec.parameters[param]);
      } else {
        params.push(param);
      }
    });
    line += 'a=fmtp:' + pt + ' ' + params.join(';') + '\r\n';
  }

  return line;
}; // Parses an rtcp-fb line, returns RTCPRtcpFeedback object. Sample input:
// a=rtcp-fb:98 nack rpsi


SDPUtils.parseRtcpFb = function (line) {
  var parts = line.substr(line.indexOf(' ') + 1).split(' ');
  return {
    type: parts.shift(),
    parameter: parts.join(' ')
  };
}; // Generate a=rtcp-fb lines from RTCRtpCodecCapability or RTCRtpCodecParameters.


SDPUtils.writeRtcpFb = function (codec) {
  var lines = '';
  var pt = codec.payloadType;

  if (codec.preferredPayloadType !== undefined) {
    pt = codec.preferredPayloadType;
  }

  if (codec.rtcpFeedback && codec.rtcpFeedback.length) {
    // FIXME: special handling for trr-int?
    codec.rtcpFeedback.forEach(function (fb) {
      lines += 'a=rtcp-fb:' + pt + ' ' + fb.type + (fb.parameter && fb.parameter.length ? ' ' + fb.parameter : '') + '\r\n';
    });
  }

  return lines;
}; // Parses an RFC 5576 ssrc media attribute. Sample input:
// a=ssrc:3735928559 cname:something


SDPUtils.parseSsrcMedia = function (line) {
  var sp = line.indexOf(' ');
  var parts = {
    ssrc: parseInt(line.substr(7, sp - 7), 10)
  };
  var colon = line.indexOf(':', sp);

  if (colon > -1) {
    parts.attribute = line.substr(sp + 1, colon - sp - 1);
    parts.value = line.substr(colon + 1);
  } else {
    parts.attribute = line.substr(sp + 1);
  }

  return parts;
};

SDPUtils.parseSsrcGroup = function (line) {
  var parts = line.substr(13).split(' ');
  return {
    semantics: parts.shift(),
    ssrcs: parts.map(function (ssrc) {
      return parseInt(ssrc, 10);
    })
  };
}; // Extracts the MID (RFC 5888) from a media section.
// returns the MID or undefined if no mid line was found.


SDPUtils.getMid = function (mediaSection) {
  var mid = SDPUtils.matchPrefix(mediaSection, 'a=mid:')[0];

  if (mid) {
    return mid.substr(6);
  }
};

SDPUtils.parseFingerprint = function (line) {
  var parts = line.substr(14).split(' ');
  return {
    algorithm: parts[0].toLowerCase(),
    // algorithm is case-sensitive in Edge.
    value: parts[1]
  };
}; // Extracts DTLS parameters from SDP media section or sessionpart.
// FIXME: for consistency with other functions this should only
//   get the fingerprint line as input. See also getIceParameters.


SDPUtils.getDtlsParameters = function (mediaSection, sessionpart) {
  var lines = SDPUtils.matchPrefix(mediaSection + sessionpart, 'a=fingerprint:'); // Note: a=setup line is ignored since we use the 'auto' role.
  // Note2: 'algorithm' is not case sensitive except in Edge.

  return {
    role: 'auto',
    fingerprints: lines.map(SDPUtils.parseFingerprint)
  };
}; // Serializes DTLS parameters to SDP.


SDPUtils.writeDtlsParameters = function (params, setupType) {
  var sdp = 'a=setup:' + setupType + '\r\n';
  params.fingerprints.forEach(function (fp) {
    sdp += 'a=fingerprint:' + fp.algorithm + ' ' + fp.value + '\r\n';
  });
  return sdp;
}; // Parses ICE information from SDP media section or sessionpart.
// FIXME: for consistency with other functions this should only
//   get the ice-ufrag and ice-pwd lines as input.


SDPUtils.getIceParameters = function (mediaSection, sessionpart) {
  var lines = SDPUtils.splitLines(mediaSection); // Search in session part, too.

  lines = lines.concat(SDPUtils.splitLines(sessionpart));
  var iceParameters = {
    usernameFragment: lines.filter(function (line) {
      return line.indexOf('a=ice-ufrag:') === 0;
    })[0].substr(12),
    password: lines.filter(function (line) {
      return line.indexOf('a=ice-pwd:') === 0;
    })[0].substr(10)
  };
  return iceParameters;
}; // Serializes ICE parameters to SDP.


SDPUtils.writeIceParameters = function (params) {
  return 'a=ice-ufrag:' + params.usernameFragment + '\r\n' + 'a=ice-pwd:' + params.password + '\r\n';
}; // Parses the SDP media section and returns RTCRtpParameters.


SDPUtils.parseRtpParameters = function (mediaSection) {
  var description = {
    codecs: [],
    headerExtensions: [],
    fecMechanisms: [],
    rtcp: []
  };
  var lines = SDPUtils.splitLines(mediaSection);
  var mline = lines[0].split(' ');

  for (var i = 3; i < mline.length; i++) {
    // find all codecs from mline[3..]
    var pt = mline[i];
    var rtpmapline = SDPUtils.matchPrefix(mediaSection, 'a=rtpmap:' + pt + ' ')[0];

    if (rtpmapline) {
      var codec = SDPUtils.parseRtpMap(rtpmapline);
      var fmtps = SDPUtils.matchPrefix(mediaSection, 'a=fmtp:' + pt + ' '); // Only the first a=fmtp:<pt> is considered.

      codec.parameters = fmtps.length ? SDPUtils.parseFmtp(fmtps[0]) : {};
      codec.rtcpFeedback = SDPUtils.matchPrefix(mediaSection, 'a=rtcp-fb:' + pt + ' ').map(SDPUtils.parseRtcpFb);
      description.codecs.push(codec); // parse FEC mechanisms from rtpmap lines.

      switch (codec.name.toUpperCase()) {
        case 'RED':
        case 'ULPFEC':
          description.fecMechanisms.push(codec.name.toUpperCase());
          break;

        default:
          // only RED and ULPFEC are recognized as FEC mechanisms.
          break;
      }
    }
  }

  SDPUtils.matchPrefix(mediaSection, 'a=extmap:').forEach(function (line) {
    description.headerExtensions.push(SDPUtils.parseExtmap(line));
  }); // FIXME: parse rtcp.

  return description;
}; // Generates parts of the SDP media section describing the capabilities /
// parameters.


SDPUtils.writeRtpDescription = function (kind, caps) {
  var sdp = ''; // Build the mline.

  sdp += 'm=' + kind + ' ';
  sdp += caps.codecs.length > 0 ? '9' : '0'; // reject if no codecs.

  sdp += ' UDP/TLS/RTP/SAVPF ';
  sdp += caps.codecs.map(function (codec) {
    if (codec.preferredPayloadType !== undefined) {
      return codec.preferredPayloadType;
    }

    return codec.payloadType;
  }).join(' ') + '\r\n';
  sdp += 'c=IN IP4 0.0.0.0\r\n';
  sdp += 'a=rtcp:9 IN IP4 0.0.0.0\r\n'; // Add a=rtpmap lines for each codec. Also fmtp and rtcp-fb.

  caps.codecs.forEach(function (codec) {
    sdp += SDPUtils.writeRtpMap(codec);
    sdp += SDPUtils.writeFmtp(codec);
    sdp += SDPUtils.writeRtcpFb(codec);
  });
  var maxptime = 0;
  caps.codecs.forEach(function (codec) {
    if (codec.maxptime > maxptime) {
      maxptime = codec.maxptime;
    }
  });

  if (maxptime > 0) {
    sdp += 'a=maxptime:' + maxptime + '\r\n';
  }

  sdp += 'a=rtcp-mux\r\n';

  if (caps.headerExtensions) {
    caps.headerExtensions.forEach(function (extension) {
      sdp += SDPUtils.writeExtmap(extension);
    });
  } // FIXME: write fecMechanisms.


  return sdp;
}; // Parses the SDP media section and returns an array of
// RTCRtpEncodingParameters.


SDPUtils.parseRtpEncodingParameters = function (mediaSection) {
  var encodingParameters = [];
  var description = SDPUtils.parseRtpParameters(mediaSection);
  var hasRed = description.fecMechanisms.indexOf('RED') !== -1;
  var hasUlpfec = description.fecMechanisms.indexOf('ULPFEC') !== -1; // filter a=ssrc:... cname:, ignore PlanB-msid

  var ssrcs = SDPUtils.matchPrefix(mediaSection, 'a=ssrc:').map(function (line) {
    return SDPUtils.parseSsrcMedia(line);
  }).filter(function (parts) {
    return parts.attribute === 'cname';
  });
  var primarySsrc = ssrcs.length > 0 && ssrcs[0].ssrc;
  var secondarySsrc;
  var flows = SDPUtils.matchPrefix(mediaSection, 'a=ssrc-group:FID').map(function (line) {
    var parts = line.substr(17).split(' ');
    return parts.map(function (part) {
      return parseInt(part, 10);
    });
  });

  if (flows.length > 0 && flows[0].length > 1 && flows[0][0] === primarySsrc) {
    secondarySsrc = flows[0][1];
  }

  description.codecs.forEach(function (codec) {
    if (codec.name.toUpperCase() === 'RTX' && codec.parameters.apt) {
      var encParam = {
        ssrc: primarySsrc,
        codecPayloadType: parseInt(codec.parameters.apt, 10)
      };

      if (primarySsrc && secondarySsrc) {
        encParam.rtx = {
          ssrc: secondarySsrc
        };
      }

      encodingParameters.push(encParam);

      if (hasRed) {
        encParam = JSON.parse(JSON.stringify(encParam));
        encParam.fec = {
          ssrc: primarySsrc,
          mechanism: hasUlpfec ? 'red+ulpfec' : 'red'
        };
        encodingParameters.push(encParam);
      }
    }
  });

  if (encodingParameters.length === 0 && primarySsrc) {
    encodingParameters.push({
      ssrc: primarySsrc
    });
  } // we support both b=AS and b=TIAS but interpret AS as TIAS.


  var bandwidth = SDPUtils.matchPrefix(mediaSection, 'b=');

  if (bandwidth.length) {
    if (bandwidth[0].indexOf('b=TIAS:') === 0) {
      bandwidth = parseInt(bandwidth[0].substr(7), 10);
    } else if (bandwidth[0].indexOf('b=AS:') === 0) {
      // use formula from JSEP to convert b=AS to TIAS value.
      bandwidth = parseInt(bandwidth[0].substr(5), 10) * 1000 * 0.95 - 50 * 40 * 8;
    } else {
      bandwidth = undefined;
    }

    encodingParameters.forEach(function (params) {
      params.maxBitrate = bandwidth;
    });
  }

  return encodingParameters;
}; // parses http://draft.ortc.org/#rtcrtcpparameters*


SDPUtils.parseRtcpParameters = function (mediaSection) {
  var rtcpParameters = {}; // Gets the first SSRC. Note tha with RTX there might be multiple
  // SSRCs.

  var remoteSsrc = SDPUtils.matchPrefix(mediaSection, 'a=ssrc:').map(function (line) {
    return SDPUtils.parseSsrcMedia(line);
  }).filter(function (obj) {
    return obj.attribute === 'cname';
  })[0];

  if (remoteSsrc) {
    rtcpParameters.cname = remoteSsrc.value;
    rtcpParameters.ssrc = remoteSsrc.ssrc;
  } // Edge uses the compound attribute instead of reducedSize
  // compound is !reducedSize


  var rsize = SDPUtils.matchPrefix(mediaSection, 'a=rtcp-rsize');
  rtcpParameters.reducedSize = rsize.length > 0;
  rtcpParameters.compound = rsize.length === 0; // parses the rtcp-mux attrіbute.
  // Note that Edge does not support unmuxed RTCP.

  var mux = SDPUtils.matchPrefix(mediaSection, 'a=rtcp-mux');
  rtcpParameters.mux = mux.length > 0;
  return rtcpParameters;
}; // parses either a=msid: or a=ssrc:... msid lines and returns
// the id of the MediaStream and MediaStreamTrack.


SDPUtils.parseMsid = function (mediaSection) {
  var parts;
  var spec = SDPUtils.matchPrefix(mediaSection, 'a=msid:');

  if (spec.length === 1) {
    parts = spec[0].substr(7).split(' ');
    return {
      stream: parts[0],
      track: parts[1]
    };
  }

  var planB = SDPUtils.matchPrefix(mediaSection, 'a=ssrc:').map(function (line) {
    return SDPUtils.parseSsrcMedia(line);
  }).filter(function (msidParts) {
    return msidParts.attribute === 'msid';
  });

  if (planB.length > 0) {
    parts = planB[0].value.split(' ');
    return {
      stream: parts[0],
      track: parts[1]
    };
  }
}; // Generate a session ID for SDP.
// https://tools.ietf.org/html/draft-ietf-rtcweb-jsep-20#section-5.2.1
// recommends using a cryptographically random +ve 64-bit value
// but right now this should be acceptable and within the right range


SDPUtils.generateSessionId = function () {
  return Math.random().toString().substr(2, 21);
}; // Write boilder plate for start of SDP
// sessId argument is optional - if not supplied it will
// be generated randomly
// sessVersion is optional and defaults to 2
// sessUser is optional and defaults to 'thisisadapterortc'


SDPUtils.writeSessionBoilerplate = function (sessId, sessVer, sessUser) {
  var sessionId;
  var version = sessVer !== undefined ? sessVer : 2;

  if (sessId) {
    sessionId = sessId;
  } else {
    sessionId = SDPUtils.generateSessionId();
  }

  var user = sessUser || 'thisisadapterortc'; // FIXME: sess-id should be an NTP timestamp.

  return 'v=0\r\n' + 'o=' + user + ' ' + sessionId + ' ' + version + ' IN IP4 127.0.0.1\r\n' + 's=-\r\n' + 't=0 0\r\n';
};

SDPUtils.writeMediaSection = function (transceiver, caps, type, stream) {
  var sdp = SDPUtils.writeRtpDescription(transceiver.kind, caps); // Map ICE parameters (ufrag, pwd) to SDP.

  sdp += SDPUtils.writeIceParameters(transceiver.iceGatherer.getLocalParameters()); // Map DTLS parameters to SDP.

  sdp += SDPUtils.writeDtlsParameters(transceiver.dtlsTransport.getLocalParameters(), type === 'offer' ? 'actpass' : 'active');
  sdp += 'a=mid:' + transceiver.mid + '\r\n';

  if (transceiver.direction) {
    sdp += 'a=' + transceiver.direction + '\r\n';
  } else if (transceiver.rtpSender && transceiver.rtpReceiver) {
    sdp += 'a=sendrecv\r\n';
  } else if (transceiver.rtpSender) {
    sdp += 'a=sendonly\r\n';
  } else if (transceiver.rtpReceiver) {
    sdp += 'a=recvonly\r\n';
  } else {
    sdp += 'a=inactive\r\n';
  }

  if (transceiver.rtpSender) {
    // spec.
    var msid = 'msid:' + stream.id + ' ' + transceiver.rtpSender.track.id + '\r\n';
    sdp += 'a=' + msid; // for Chrome.

    sdp += 'a=ssrc:' + transceiver.sendEncodingParameters[0].ssrc + ' ' + msid;

    if (transceiver.sendEncodingParameters[0].rtx) {
      sdp += 'a=ssrc:' + transceiver.sendEncodingParameters[0].rtx.ssrc + ' ' + msid;
      sdp += 'a=ssrc-group:FID ' + transceiver.sendEncodingParameters[0].ssrc + ' ' + transceiver.sendEncodingParameters[0].rtx.ssrc + '\r\n';
    }
  } // FIXME: this should be written by writeRtpDescription.


  sdp += 'a=ssrc:' + transceiver.sendEncodingParameters[0].ssrc + ' cname:' + SDPUtils.localCName + '\r\n';

  if (transceiver.rtpSender && transceiver.sendEncodingParameters[0].rtx) {
    sdp += 'a=ssrc:' + transceiver.sendEncodingParameters[0].rtx.ssrc + ' cname:' + SDPUtils.localCName + '\r\n';
  }

  return sdp;
}; // Gets the direction from the mediaSection or the sessionpart.


SDPUtils.getDirection = function (mediaSection, sessionpart) {
  // Look for sendrecv, sendonly, recvonly, inactive, default to sendrecv.
  var lines = SDPUtils.splitLines(mediaSection);

  for (var i = 0; i < lines.length; i++) {
    switch (lines[i]) {
      case 'a=sendrecv':
      case 'a=sendonly':
      case 'a=recvonly':
      case 'a=inactive':
        return lines[i].substr(2);

      default: // FIXME: What should happen here?

    }
  }

  if (sessionpart) {
    return SDPUtils.getDirection(sessionpart);
  }

  return 'sendrecv';
};

SDPUtils.getKind = function (mediaSection) {
  var lines = SDPUtils.splitLines(mediaSection);
  var mline = lines[0].split(' ');
  return mline[0].substr(2);
};

SDPUtils.isRejected = function (mediaSection) {
  return mediaSection.split(' ', 2)[1] === '0';
};

SDPUtils.parseMLine = function (mediaSection) {
  var lines = SDPUtils.splitLines(mediaSection);
  var parts = lines[0].substr(2).split(' ');
  return {
    kind: parts[0],
    port: parseInt(parts[1], 10),
    protocol: parts[2],
    fmt: parts.slice(3).join(' ')
  };
};

SDPUtils.parseOLine = function (mediaSection) {
  var line = SDPUtils.matchPrefix(mediaSection, 'o=')[0];
  var parts = line.substr(2).split(' ');
  return {
    username: parts[0],
    sessionId: parts[1],
    sessionVersion: parseInt(parts[2], 10),
    netType: parts[3],
    addressType: parts[4],
    address: parts[5]
  };
}; // a very naive interpretation of a valid SDP.


SDPUtils.isValidSDP = function (blob) {
  if (typeof blob !== 'string' || blob.length === 0) {
    return false;
  }

  var lines = SDPUtils.splitLines(blob);

  for (var i = 0; i < lines.length; i++) {
    if (lines[i].length < 2 || lines[i].charAt(1) !== '=') {
      return false;
    } // TODO: check the modifier a bit more.

  }

  return true;
}; // Expose public methods.


if (true) {
  module.exports = SDPUtils;
}

}),
/* 20 */
(function(module, exports, __webpack_require__) {

"use strict";
/* WEBPACK VAR INJECTION */(function(process, global) {var __WEBPACK_AMD_DEFINE_ARRAY__, __WEBPACK_AMD_DEFINE_RESULT__; // Last Updated On: 2018-10-26 9:36:48 AM UTC
// ________________
// DetectRTC v1.3.7
// Open-Sourced: https://github.com/muaz-khan/DetectRTC
// --------------------------------------------------
// Muaz Khan     - www.MuazKhan.com
// MIT License   - www.WebRTC-Experiment.com/licence
// --------------------------------------------------

(function () {
  var browserFakeUserAgent = 'Fake/5.0 (FakeOS) AppleWebKit/123 (KHTML, like Gecko) Fake/12.3.4567.89 Fake/123.45';
  var isNodejs = typeof process === 'object' && typeof process.versions === 'object' && process.versions.node &&
  /*node-process*/
  !process.browser;

  if (isNodejs) {
    var version = process.versions.node.toString().replace('v', '');
    browserFakeUserAgent = 'Nodejs/' + version + ' (NodeOS) AppleWebKit/' + version + ' (KHTML, like Gecko) Nodejs/' + version + ' Nodejs/' + version;
  }

  (function (that) {
    if (typeof window !== 'undefined') {
      return;
    }

    if (typeof window === 'undefined' && typeof global !== 'undefined') {
      global.navigator = {
        userAgent: browserFakeUserAgent,
        getUserMedia: function () {}
      };
      /*global window:true */

      that.window = global;
    } else if (typeof window === 'undefined') {// window = this;
    }

    if (typeof location === 'undefined') {
      /*global location:true */
      that.location = {
        protocol: 'file:',
        href: '',
        hash: ''
      };
    }

    if (typeof screen === 'undefined') {
      /*global screen:true */
      that.screen = {
        width: 0,
        height: 0
      };
    }
  })(typeof global !== 'undefined' ? global : window);
  /*global navigator:true */


  var navigator = window.navigator;

  if (typeof navigator !== 'undefined') {
    if (typeof navigator.webkitGetUserMedia !== 'undefined') {
      navigator.getUserMedia = navigator.webkitGetUserMedia;
    }

    if (typeof navigator.mozGetUserMedia !== 'undefined') {
      navigator.getUserMedia = navigator.mozGetUserMedia;
    }
  } else {
    navigator = {
      getUserMedia: function () {},
      userAgent: browserFakeUserAgent
    };
  }

  var isMobileDevice = !!/Android|webOS|iPhone|iPad|iPod|BB10|BlackBerry|IEMobile|Opera Mini|Mobile|mobile/i.test(navigator.userAgent || '');
  var isEdge = navigator.userAgent.indexOf('Edge') !== -1 && (!!navigator.msSaveOrOpenBlob || !!navigator.msSaveBlob);
  var isOpera = !!window.opera || navigator.userAgent.indexOf(' OPR/') >= 0;
  var isFirefox = typeof window.InstallTrigger !== 'undefined';
  var isSafari = /^((?!chrome|android).)*safari/i.test(navigator.userAgent);
  var isChrome = !!window.chrome && !isOpera;
  var isIE = typeof document !== 'undefined' && !!document.documentMode && !isEdge; // this one can also be used:
  // https://www.websocket.org/js/stuff.js (DetectBrowser.js)

  function getBrowserInfo() {
    var nVer = navigator.appVersion;
    var nAgt = navigator.userAgent;
    var browserName = navigator.appName;
    var fullVersion = '' + parseFloat(navigator.appVersion);
    var majorVersion = parseInt(navigator.appVersion, 10);
    var nameOffset, verOffset, ix; // both and safri and chrome has same userAgent

    if (isSafari && !isChrome && nAgt.indexOf('CriOS') !== -1) {
      isSafari = false;
      isChrome = true;
    } // In Opera, the true version is after 'Opera' or after 'Version'


    if (isOpera) {
      browserName = 'Opera';

      try {
        fullVersion = navigator.userAgent.split('OPR/')[1].split(' ')[0];
        majorVersion = fullVersion.split('.')[0];
      } catch (e) {
        fullVersion = '0.0.0.0';
        majorVersion = 0;
      }
    } // In MSIE version <=10, the true version is after 'MSIE' in userAgent
    // In IE 11, look for the string after 'rv:'
    else if (isIE) {
        verOffset = nAgt.indexOf('rv:');

        if (verOffset > 0) {
          //IE 11
          fullVersion = nAgt.substring(verOffset + 3);
        } else {
          //IE 10 or earlier
          verOffset = nAgt.indexOf('MSIE');
          fullVersion = nAgt.substring(verOffset + 5);
        }

        browserName = 'IE';
      } // In Chrome, the true version is after 'Chrome' 
      else if (isChrome) {
          verOffset = nAgt.indexOf('Chrome');
          browserName = 'Chrome';
          fullVersion = nAgt.substring(verOffset + 7);
        } // In Safari, the true version is after 'Safari' or after 'Version' 
        else if (isSafari) {
            verOffset = nAgt.indexOf('Safari');
            browserName = 'Safari';
            fullVersion = nAgt.substring(verOffset + 7);

            if ((verOffset = nAgt.indexOf('Version')) !== -1) {
              fullVersion = nAgt.substring(verOffset + 8);
            }

            if (navigator.userAgent.indexOf('Version/') !== -1) {
              fullVersion = navigator.userAgent.split('Version/')[1].split(' ')[0];
            }
          } // In Firefox, the true version is after 'Firefox' 
          else if (isFirefox) {
              verOffset = nAgt.indexOf('Firefox');
              browserName = 'Firefox';
              fullVersion = nAgt.substring(verOffset + 8);
            } // In most other browsers, 'name/version' is at the end of userAgent 
            else if ((nameOffset = nAgt.lastIndexOf(' ') + 1) < (verOffset = nAgt.lastIndexOf('/'))) {
                browserName = nAgt.substring(nameOffset, verOffset);
                fullVersion = nAgt.substring(verOffset + 1);

                if (browserName.toLowerCase() === browserName.toUpperCase()) {
                  browserName = navigator.appName;
                }
              }

    if (isEdge) {
      browserName = 'Edge';
      fullVersion = navigator.userAgent.split('Edge/')[1]; // fullVersion = parseInt(navigator.userAgent.match(/Edge\/(\d+).(\d+)$/)[2], 10).toString();
    } // trim the fullVersion string at semicolon/space/bracket if present


    if ((ix = fullVersion.search(/[; \)]/)) !== -1) {
      fullVersion = fullVersion.substring(0, ix);
    }

    majorVersion = parseInt('' + fullVersion, 10);

    if (isNaN(majorVersion)) {
      fullVersion = '' + parseFloat(navigator.appVersion);
      majorVersion = parseInt(navigator.appVersion, 10);
    }

    return {
      fullVersion: fullVersion,
      version: majorVersion,
      name: browserName,
      isPrivateBrowsing: false
    };
  } // via: https://gist.github.com/cou929/7973956


  function retry(isDone, next) {
    var currentTrial = 0,
        maxRetry = 50,
        interval = 10,
        isTimeout = false;
    var id = window.setInterval(function () {
      if (isDone()) {
        window.clearInterval(id);
        next(isTimeout);
      }

      if (currentTrial++ > maxRetry) {
        window.clearInterval(id);
        isTimeout = true;
        next(isTimeout);
      }
    }, 10);
  }

  function isIE10OrLater(userAgent) {
    var ua = userAgent.toLowerCase();

    if (ua.indexOf('msie') === 0 && ua.indexOf('trident') === 0) {
      return false;
    }

    var match = /(?:msie|rv:)\s?([\d\.]+)/.exec(ua);

    if (match && parseInt(match[1], 10) >= 10) {
      return true;
    }

    return false;
  }

  function detectPrivateMode(callback) {
    var isPrivate;

    try {
      if (window.webkitRequestFileSystem) {
        window.webkitRequestFileSystem(window.TEMPORARY, 1, function () {
          isPrivate = false;
        }, function (e) {
          isPrivate = true;
        });
      } else if (window.indexedDB && /Firefox/.test(window.navigator.userAgent)) {
        var db;

        try {
          db = window.indexedDB.open('test');

          db.onerror = function () {
            return true;
          };
        } catch (e) {
          isPrivate = true;
        }

        if (typeof isPrivate === 'undefined') {
          retry(function isDone() {
            return db.readyState === 'done' ? true : false;
          }, function next(isTimeout) {
            if (!isTimeout) {
              isPrivate = db.result ? false : true;
            }
          });
        }
      } else if (isIE10OrLater(window.navigator.userAgent)) {
        isPrivate = false;

        try {
          if (!window.indexedDB) {
            isPrivate = true;
          }
        } catch (e) {
          isPrivate = true;
        }
      } else if (window.localStorage && /Safari/.test(window.navigator.userAgent)) {
        try {
          window.localStorage.setItem('test', 1);
        } catch (e) {
          isPrivate = true;
        }

        if (typeof isPrivate === 'undefined') {
          isPrivate = false;
          window.localStorage.removeItem('test');
        }
      }
    } catch (e) {
      isPrivate = false;
    }

    retry(function isDone() {
      return typeof isPrivate !== 'undefined' ? true : false;
    }, function next(isTimeout) {
      callback(isPrivate);
    });
  }

  var isMobile = {
    Android: function () {
      return navigator.userAgent.match(/Android/i);
    },
    BlackBerry: function () {
      return navigator.userAgent.match(/BlackBerry|BB10/i);
    },
    iOS: function () {
      return navigator.userAgent.match(/iPhone|iPad|iPod/i);
    },
    Opera: function () {
      return navigator.userAgent.match(/Opera Mini/i);
    },
    Windows: function () {
      return navigator.userAgent.match(/IEMobile/i);
    },
    any: function () {
      return isMobile.Android() || isMobile.BlackBerry() || isMobile.iOS() || isMobile.Opera() || isMobile.Windows();
    },
    getOsName: function () {
      var osName = 'Unknown OS';

      if (isMobile.Android()) {
        osName = 'Android';
      }

      if (isMobile.BlackBerry()) {
        osName = 'BlackBerry';
      }

      if (isMobile.iOS()) {
        osName = 'iOS';
      }

      if (isMobile.Opera()) {
        osName = 'Opera Mini';
      }

      if (isMobile.Windows()) {
        osName = 'Windows';
      }

      return osName;
    }
  }; // via: http://jsfiddle.net/ChristianL/AVyND/

  function detectDesktopOS() {
    var unknown = '-';
    var nVer = navigator.appVersion;
    var nAgt = navigator.userAgent;
    var os = unknown;
    var clientStrings = [{
      s: 'Windows 10',
      r: /(Windows 10.0|Windows NT 10.0)/
    }, {
      s: 'Windows 8.1',
      r: /(Windows 8.1|Windows NT 6.3)/
    }, {
      s: 'Windows 8',
      r: /(Windows 8|Windows NT 6.2)/
    }, {
      s: 'Windows 7',
      r: /(Windows 7|Windows NT 6.1)/
    }, {
      s: 'Windows Vista',
      r: /Windows NT 6.0/
    }, {
      s: 'Windows Server 2003',
      r: /Windows NT 5.2/
    }, {
      s: 'Windows XP',
      r: /(Windows NT 5.1|Windows XP)/
    }, {
      s: 'Windows 2000',
      r: /(Windows NT 5.0|Windows 2000)/
    }, {
      s: 'Windows ME',
      r: /(Win 9x 4.90|Windows ME)/
    }, {
      s: 'Windows 98',
      r: /(Windows 98|Win98)/
    }, {
      s: 'Windows 95',
      r: /(Windows 95|Win95|Windows_95)/
    }, {
      s: 'Windows NT 4.0',
      r: /(Windows NT 4.0|WinNT4.0|WinNT|Windows NT)/
    }, {
      s: 'Windows CE',
      r: /Windows CE/
    }, {
      s: 'Windows 3.11',
      r: /Win16/
    }, {
      s: 'Android',
      r: /Android/
    }, {
      s: 'Open BSD',
      r: /OpenBSD/
    }, {
      s: 'Sun OS',
      r: /SunOS/
    }, {
      s: 'Linux',
      r: /(Linux|X11)/
    }, {
      s: 'iOS',
      r: /(iPhone|iPad|iPod)/
    }, {
      s: 'Mac OS X',
      r: /Mac OS X/
    }, {
      s: 'Mac OS',
      r: /(MacPPC|MacIntel|Mac_PowerPC|Macintosh)/
    }, {
      s: 'QNX',
      r: /QNX/
    }, {
      s: 'UNIX',
      r: /UNIX/
    }, {
      s: 'BeOS',
      r: /BeOS/
    }, {
      s: 'OS/2',
      r: /OS\/2/
    }, {
      s: 'Search Bot',
      r: /(nuhk|Googlebot|Yammybot|Openbot|Slurp|MSNBot|Ask Jeeves\/Teoma|ia_archiver)/
    }];

    for (var i = 0, cs; cs = clientStrings[i]; i++) {
      if (cs.r.test(nAgt)) {
        os = cs.s;
        break;
      }
    }

    var osVersion = unknown;

    if (/Windows/.test(os)) {
      if (/Windows (.*)/.test(os)) {
        osVersion = /Windows (.*)/.exec(os)[1];
      }

      os = 'Windows';
    }

    switch (os) {
      case 'Mac OS X':
        if (/Mac OS X (10[\.\_\d]+)/.test(nAgt)) {
          osVersion = /Mac OS X (10[\.\_\d]+)/.exec(nAgt)[1];
        }

        break;

      case 'Android':
        if (/Android ([\.\_\d]+)/.test(nAgt)) {
          osVersion = /Android ([\.\_\d]+)/.exec(nAgt)[1];
        }

        break;

      case 'iOS':
        if (/OS (\d+)_(\d+)_?(\d+)?/.test(nAgt)) {
          osVersion = /OS (\d+)_(\d+)_?(\d+)?/.exec(nVer);
          osVersion = osVersion[1] + '.' + osVersion[2] + '.' + (osVersion[3] | 0);
        }

        break;
    }

    return {
      osName: os,
      osVersion: osVersion
    };
  }

  var osName = 'Unknown OS';
  var osVersion = 'Unknown OS Version';

  function getAndroidVersion(ua) {
    ua = (ua || navigator.userAgent).toLowerCase();
    var match = ua.match(/android\s([0-9\.]*)/);
    return match ? match[1] : false;
  }

  var osInfo = detectDesktopOS();

  if (osInfo && osInfo.osName && osInfo.osName != '-') {
    osName = osInfo.osName;
    osVersion = osInfo.osVersion;
  } else if (isMobile.any()) {
    osName = isMobile.getOsName();

    if (osName == 'Android') {
      osVersion = getAndroidVersion();
    }
  }

  var isNodejs = typeof process === 'object' && typeof process.versions === 'object' && process.versions.node;

  if (osName === 'Unknown OS' && isNodejs) {
    osName = 'Nodejs';
    osVersion = process.versions.node.toString().replace('v', '');
  }

  var isCanvasSupportsStreamCapturing = false;
  var isVideoSupportsStreamCapturing = false;
  ['captureStream', 'mozCaptureStream', 'webkitCaptureStream'].forEach(function (item) {
    if (typeof document === 'undefined' || typeof document.createElement !== 'function') {
      return;
    }

    if (!isCanvasSupportsStreamCapturing && item in document.createElement('canvas')) {
      isCanvasSupportsStreamCapturing = true;
    }

    if (!isVideoSupportsStreamCapturing && item in document.createElement('video')) {
      isVideoSupportsStreamCapturing = true;
    }
  });
  const regexIpv4Local = /^(192\.168\.|169\.254\.|10\.|172\.(1[6-9]|2\d|3[01]))/,
        regexIpv4 = /([0-9]{1,3}(\.[0-9]{1,3}){3})/,
        regexIpv6 = /[a-f0-9]{1,4}(:[a-f0-9]{1,4}){7}/; // via: https://github.com/diafygi/webrtc-ips

  function DetectLocalIPAddress(callback, stream) {
    if (!DetectRTC.isWebRTCSupported) {
      return;
    }

    var isPublic = true,
        isIpv4 = true;
    getIPs(function (ip) {
      if (ip.match(regexIpv4Local)) {
        isPublic = false;
        callback('Local: ' + ip, isPublic, isIpv4);
      } else if (ip.match(regexIpv6)) {
        //via https://ourcodeworld.com/articles/read/257/how-to-get-the-client-ip-address-with-javascript-only
        isIpv4 = false;
        callback('Public: ' + ip, isPublic, isIpv4);
      } else {
        callback('Public: ' + ip, isPublic, isIpv4);
      }
    }, stream);
  }

  function getIPs(callback, stream) {
    if (typeof document === 'undefined' || typeof document.getElementById !== 'function') {
      return;
    }

    var ipDuplicates = {};
    var RTCPeerConnection = window.RTCPeerConnection || window.mozRTCPeerConnection || window.webkitRTCPeerConnection;

    if (!RTCPeerConnection) {
      var iframe = document.getElementById('iframe');

      if (!iframe) {
        return;
      }

      var win = iframe.contentWindow;
      RTCPeerConnection = win.RTCPeerConnection || win.mozRTCPeerConnection || win.webkitRTCPeerConnection;
    }

    if (!RTCPeerConnection) {
      return;
    }

    var peerConfig = null;

    if (DetectRTC.browser === 'Chrome' && DetectRTC.browser.version < 58) {
      // todo: add support for older Opera
      peerConfig = {
        optional: [{
          RtpDataChannels: true
        }]
      };
    }

    var servers = {
      iceServers: [{
        urls: 'stun:stun.l.google.com:19302'
      }]
    };
    var pc = new RTCPeerConnection(servers, peerConfig);

    if (stream) {
      if (pc.addStream) {
        pc.addStream(stream);
      } else if (pc.addTrack && stream.getTracks()[0]) {
        pc.addTrack(stream.getTracks()[0], stream);
      }
    }

    function handleCandidate(candidate) {
      var match = regexIpv4.exec(candidate);

      if (!match) {
        return;
      }

      var ipAddress = match[1];
      const isPublic = candidate.match(regexIpv4Local),
            isIpv4 = true;

      if (ipDuplicates[ipAddress] === undefined) {
        callback(ipAddress, isPublic, isIpv4);
      }

      ipDuplicates[ipAddress] = true;
    } // listen for candidate events


    pc.onicecandidate = function (ice) {
      if (ice.candidate) {
        handleCandidate(ice.candidate.candidate);
      }
    }; // create data channel


    if (!stream) {
      try {
        pc.createDataChannel('sctp', {});
      } catch (e) {}
    } // create an offer sdp


    if (DetectRTC.isPromisesSupported) {
      pc.createOffer().then(function (result) {
        pc.setLocalDescription(result).then(afterCreateOffer);
      });
    } else {
      pc.createOffer(function (result) {
        pc.setLocalDescription(result, afterCreateOffer, function () {});
      }, function () {});
    }

    function afterCreateOffer() {
      var lines = pc.localDescription.sdp.split('\n');
      lines.forEach(function (line) {
        if (line.indexOf('a=candidate:') === 0) {
          handleCandidate(line);
        }
      });
    }
  }

  var MediaDevices = [];
  var audioInputDevices = [];
  var audioOutputDevices = [];
  var videoInputDevices = [];

  if (navigator.mediaDevices && navigator.mediaDevices.enumerateDevices) {
    // Firefox 38+ seems having support of enumerateDevices
    // Thanks @xdumaine/enumerateDevices
    navigator.enumerateDevices = function (callback) {
      var enumerateDevices = navigator.mediaDevices.enumerateDevices();

      if (enumerateDevices && enumerateDevices.then) {
        navigator.mediaDevices.enumerateDevices().then(callback).catch(function () {
          callback([]);
        });
      } else {
        callback([]);
      }
    };
  } // Media Devices detection


  var canEnumerate = false;
  /*global MediaStreamTrack:true */

  if (typeof MediaStreamTrack !== 'undefined' && 'getSources' in MediaStreamTrack) {
    canEnumerate = true;
  } else if (navigator.mediaDevices && !!navigator.mediaDevices.enumerateDevices) {
    canEnumerate = true;
  }

  var hasMicrophone = false;
  var hasSpeakers = false;
  var hasWebcam = false;
  var isWebsiteHasMicrophonePermissions = false;
  var isWebsiteHasWebcamPermissions = false; // http://dev.w3.org/2011/webrtc/editor/getusermedia.html#mediadevices

  function checkDeviceSupport(callback) {
    if (!canEnumerate) {
      if (callback) {
        callback();
      }

      return;
    }

    if (!navigator.enumerateDevices && window.MediaStreamTrack && window.MediaStreamTrack.getSources) {
      navigator.enumerateDevices = window.MediaStreamTrack.getSources.bind(window.MediaStreamTrack);
    }

    if (!navigator.enumerateDevices && navigator.enumerateDevices) {
      navigator.enumerateDevices = navigator.enumerateDevices.bind(navigator);
    }

    if (!navigator.enumerateDevices) {
      if (callback) {
        callback();
      }

      return;
    }

    MediaDevices = [];
    audioInputDevices = [];
    audioOutputDevices = [];
    videoInputDevices = [];
    hasMicrophone = false;
    hasSpeakers = false;
    hasWebcam = false;
    isWebsiteHasMicrophonePermissions = false;
    isWebsiteHasWebcamPermissions = false; // to prevent duplication

    var alreadyUsedDevices = {};
    navigator.enumerateDevices(function (devices) {
      devices.forEach(function (_device) {
        var device = {};

        for (var d in _device) {
          try {
            if (typeof _device[d] !== 'function') {
              device[d] = _device[d];
            }
          } catch (e) {}
        }

        if (alreadyUsedDevices[device.deviceId + device.label + device.kind]) {
          return;
        } // if it is MediaStreamTrack.getSources


        if (device.kind === 'audio') {
          device.kind = 'audioinput';
        }

        if (device.kind === 'video') {
          device.kind = 'videoinput';
        }

        if (!device.deviceId) {
          device.deviceId = device.id;
        }

        if (!device.id) {
          device.id = device.deviceId;
        }

        if (!device.label) {
          device.isCustomLabel = true;

          if (device.kind === 'videoinput') {
            device.label = 'Camera ' + (videoInputDevices.length + 1);
          } else if (device.kind === 'audioinput') {
            device.label = 'Microphone ' + (audioInputDevices.length + 1);
          } else if (device.kind === 'audiooutput') {
            device.label = 'Speaker ' + (audioOutputDevices.length + 1);
          } else {
            device.label = 'Please invoke getUserMedia once.';
          }

          if (typeof DetectRTC !== 'undefined' && DetectRTC.browser.isChrome && DetectRTC.browser.version >= 46 && !/^(https:|chrome-extension:)$/g.test(location.protocol || '')) {
            if (typeof document !== 'undefined' && typeof document.domain === 'string' && document.domain.search && document.domain.search(/localhost|127.0./g) === -1) {
              device.label = 'HTTPs is required to get label of this ' + device.kind + ' device.';
            }
          }
        } else {
          // Firefox on Android still returns empty label
          if (device.kind === 'videoinput' && !isWebsiteHasWebcamPermissions) {
            isWebsiteHasWebcamPermissions = true;
          }

          if (device.kind === 'audioinput' && !isWebsiteHasMicrophonePermissions) {
            isWebsiteHasMicrophonePermissions = true;
          }
        }

        if (device.kind === 'audioinput') {
          hasMicrophone = true;

          if (audioInputDevices.indexOf(device) === -1) {
            audioInputDevices.push(device);
          }
        }

        if (device.kind === 'audiooutput') {
          hasSpeakers = true;

          if (audioOutputDevices.indexOf(device) === -1) {
            audioOutputDevices.push(device);
          }
        }

        if (device.kind === 'videoinput') {
          hasWebcam = true;

          if (videoInputDevices.indexOf(device) === -1) {
            videoInputDevices.push(device);
          }
        } // there is no 'videoouput' in the spec.


        MediaDevices.push(device);
        alreadyUsedDevices[device.deviceId + device.label + device.kind] = device;
      });

      if (typeof DetectRTC !== 'undefined') {
        // to sync latest outputs
        DetectRTC.MediaDevices = MediaDevices;
        DetectRTC.hasMicrophone = hasMicrophone;
        DetectRTC.hasSpeakers = hasSpeakers;
        DetectRTC.hasWebcam = hasWebcam;
        DetectRTC.isWebsiteHasWebcamPermissions = isWebsiteHasWebcamPermissions;
        DetectRTC.isWebsiteHasMicrophonePermissions = isWebsiteHasMicrophonePermissions;
        DetectRTC.audioInputDevices = audioInputDevices;
        DetectRTC.audioOutputDevices = audioOutputDevices;
        DetectRTC.videoInputDevices = videoInputDevices;
      }

      if (callback) {
        callback();
      }
    });
  }

  var DetectRTC = window.DetectRTC || {}; // ----------
  // DetectRTC.browser.name || DetectRTC.browser.version || DetectRTC.browser.fullVersion

  DetectRTC.browser = getBrowserInfo();
  detectPrivateMode(function (isPrivateBrowsing) {
    DetectRTC.browser.isPrivateBrowsing = !!isPrivateBrowsing;
  }); // DetectRTC.isChrome || DetectRTC.isFirefox || DetectRTC.isEdge

  DetectRTC.browser['is' + DetectRTC.browser.name] = true; // -----------

  DetectRTC.osName = osName;
  DetectRTC.osVersion = osVersion;
  var isNodeWebkit = typeof process === 'object' && typeof process.versions === 'object' && process.versions['node-webkit']; // --------- Detect if system supports WebRTC 1.0 or WebRTC 1.1.

  var isWebRTCSupported = false;
  ['RTCPeerConnection', 'webkitRTCPeerConnection', 'mozRTCPeerConnection', 'RTCIceGatherer'].forEach(function (item) {
    if (isWebRTCSupported) {
      return;
    }

    if (item in window) {
      isWebRTCSupported = true;
    }
  });
  DetectRTC.isWebRTCSupported = isWebRTCSupported; //-------

  DetectRTC.isORTCSupported = typeof RTCIceGatherer !== 'undefined'; // --------- Detect if system supports screen capturing API

  var isScreenCapturingSupported = false;

  if (DetectRTC.browser.isChrome && DetectRTC.browser.version >= 35) {
    isScreenCapturingSupported = true;
  } else if (DetectRTC.browser.isFirefox && DetectRTC.browser.version >= 34) {
    isScreenCapturingSupported = true;
  } else if (DetectRTC.browser.isEdge && DetectRTC.browser.version >= 17) {
    isScreenCapturingSupported = true; // navigator.getDisplayMedia
  } else if (DetectRTC.osName === 'Android' && DetectRTC.browser.isChrome) {
    isScreenCapturingSupported = true;
  }

  if (!/^(https:|chrome-extension:)$/g.test(location.protocol || '')) {
    var isNonLocalHost = typeof document !== 'undefined' && typeof document.domain === 'string' && document.domain.search && document.domain.search(/localhost|127.0./g) === -1;

    if (isNonLocalHost && (DetectRTC.browser.isChrome || DetectRTC.browser.isEdge || DetectRTC.browser.isOpera)) {
      isScreenCapturingSupported = false;
    } else if (DetectRTC.browser.isFirefox) {
      isScreenCapturingSupported = false;
    }
  }

  DetectRTC.isScreenCapturingSupported = isScreenCapturingSupported; // --------- Detect if WebAudio API are supported

  var webAudio = {
    isSupported: false,
    isCreateMediaStreamSourceSupported: false
  };
  ['AudioContext', 'webkitAudioContext', 'mozAudioContext', 'msAudioContext'].forEach(function (item) {
    if (webAudio.isSupported) {
      return;
    }

    if (item in window) {
      webAudio.isSupported = true;

      if (window[item] && 'createMediaStreamSource' in window[item].prototype) {
        webAudio.isCreateMediaStreamSourceSupported = true;
      }
    }
  });
  DetectRTC.isAudioContextSupported = webAudio.isSupported;
  DetectRTC.isCreateMediaStreamSourceSupported = webAudio.isCreateMediaStreamSourceSupported; // ---------- Detect if SCTP/RTP channels are supported.

  var isRtpDataChannelsSupported = false;

  if (DetectRTC.browser.isChrome && DetectRTC.browser.version > 31) {
    isRtpDataChannelsSupported = true;
  }

  DetectRTC.isRtpDataChannelsSupported = isRtpDataChannelsSupported;
  var isSCTPSupportd = false;

  if (DetectRTC.browser.isFirefox && DetectRTC.browser.version > 28) {
    isSCTPSupportd = true;
  } else if (DetectRTC.browser.isChrome && DetectRTC.browser.version > 25) {
    isSCTPSupportd = true;
  } else if (DetectRTC.browser.isOpera && DetectRTC.browser.version >= 11) {
    isSCTPSupportd = true;
  }

  DetectRTC.isSctpDataChannelsSupported = isSCTPSupportd; // ---------

  DetectRTC.isMobileDevice = isMobileDevice; // "isMobileDevice" boolean is defined in "getBrowserInfo.js"
  // ------

  var isGetUserMediaSupported = false;

  if (navigator.getUserMedia) {
    isGetUserMediaSupported = true;
  } else if (navigator.mediaDevices && navigator.mediaDevices.getUserMedia) {
    isGetUserMediaSupported = true;
  }

  if (DetectRTC.browser.isChrome && DetectRTC.browser.version >= 46 && !/^(https:|chrome-extension:)$/g.test(location.protocol || '')) {
    if (typeof document !== 'undefined' && typeof document.domain === 'string' && document.domain.search && document.domain.search(/localhost|127.0./g) === -1) {
      isGetUserMediaSupported = 'Requires HTTPs';
    }
  }

  if (DetectRTC.osName === 'Nodejs') {
    isGetUserMediaSupported = false;
  }

  DetectRTC.isGetUserMediaSupported = isGetUserMediaSupported;
  var displayResolution = '';

  if (screen.width) {
    var width = screen.width ? screen.width : '';
    var height = screen.height ? screen.height : '';
    displayResolution += '' + width + ' x ' + height;
  }

  DetectRTC.displayResolution = displayResolution;

  function getAspectRatio(w, h) {
    function gcd(a, b) {
      return b == 0 ? a : gcd(b, a % b);
    }

    var r = gcd(w, h);
    return w / r / (h / r);
  }

  DetectRTC.displayAspectRatio = getAspectRatio(screen.width, screen.height).toFixed(2); // ----------

  DetectRTC.isCanvasSupportsStreamCapturing = isCanvasSupportsStreamCapturing;
  DetectRTC.isVideoSupportsStreamCapturing = isVideoSupportsStreamCapturing;

  if (DetectRTC.browser.name == 'Chrome' && DetectRTC.browser.version >= 53) {
    if (!DetectRTC.isCanvasSupportsStreamCapturing) {
      DetectRTC.isCanvasSupportsStreamCapturing = 'Requires chrome flag: enable-experimental-web-platform-features';
    }

    if (!DetectRTC.isVideoSupportsStreamCapturing) {
      DetectRTC.isVideoSupportsStreamCapturing = 'Requires chrome flag: enable-experimental-web-platform-features';
    }
  } // ------


  DetectRTC.DetectLocalIPAddress = DetectLocalIPAddress;
  DetectRTC.isWebSocketsSupported = 'WebSocket' in window && 2 === window.WebSocket.CLOSING;
  DetectRTC.isWebSocketsBlocked = !DetectRTC.isWebSocketsSupported;

  if (DetectRTC.osName === 'Nodejs') {
    DetectRTC.isWebSocketsSupported = true;
    DetectRTC.isWebSocketsBlocked = false;
  }

  DetectRTC.checkWebSocketsSupport = function (callback) {
    callback = callback || function () {};

    try {
      var starttime;
      var websocket = new WebSocket('wss://echo.websocket.org:443/');

      websocket.onopen = function () {
        DetectRTC.isWebSocketsBlocked = false;
        starttime = new Date().getTime();
        websocket.send('ping');
      };

      websocket.onmessage = function () {
        DetectRTC.WebsocketLatency = new Date().getTime() - starttime + 'ms';
        callback();
        websocket.close();
        websocket = null;
      };

      websocket.onerror = function () {
        DetectRTC.isWebSocketsBlocked = true;
        callback();
      };
    } catch (e) {
      DetectRTC.isWebSocketsBlocked = true;
      callback();
    }
  }; // -------


  DetectRTC.load = function (callback) {
    callback = callback || function () {};

    checkDeviceSupport(callback);
  }; // check for microphone/camera support!


  if (typeof checkDeviceSupport === 'function') {// checkDeviceSupport();
  }

  if (typeof MediaDevices !== 'undefined') {
    DetectRTC.MediaDevices = MediaDevices;
  } else {
    DetectRTC.MediaDevices = [];
  }

  DetectRTC.hasMicrophone = hasMicrophone;
  DetectRTC.hasSpeakers = hasSpeakers;
  DetectRTC.hasWebcam = hasWebcam;
  DetectRTC.isWebsiteHasWebcamPermissions = isWebsiteHasWebcamPermissions;
  DetectRTC.isWebsiteHasMicrophonePermissions = isWebsiteHasMicrophonePermissions;
  DetectRTC.audioInputDevices = audioInputDevices;
  DetectRTC.audioOutputDevices = audioOutputDevices;
  DetectRTC.videoInputDevices = videoInputDevices; // ------

  var isSetSinkIdSupported = false;

  if (typeof document !== 'undefined' && typeof document.createElement === 'function' && 'setSinkId' in document.createElement('video')) {
    isSetSinkIdSupported = true;
  }

  DetectRTC.isSetSinkIdSupported = isSetSinkIdSupported; // -----

  var isRTPSenderReplaceTracksSupported = false;

  if (DetectRTC.browser.isFirefox && typeof mozRTCPeerConnection !== 'undefined'
  /*&& DetectRTC.browser.version > 39*/
  ) {
      /*global mozRTCPeerConnection:true */
      if ('getSenders' in mozRTCPeerConnection.prototype) {
        isRTPSenderReplaceTracksSupported = true;
      }
    } else if (DetectRTC.browser.isChrome && typeof webkitRTCPeerConnection !== 'undefined') {
    /*global webkitRTCPeerConnection:true */
    if ('getSenders' in webkitRTCPeerConnection.prototype) {
      isRTPSenderReplaceTracksSupported = true;
    }
  }

  DetectRTC.isRTPSenderReplaceTracksSupported = isRTPSenderReplaceTracksSupported; //------

  var isRemoteStreamProcessingSupported = false;

  if (DetectRTC.browser.isFirefox && DetectRTC.browser.version > 38) {
    isRemoteStreamProcessingSupported = true;
  }

  DetectRTC.isRemoteStreamProcessingSupported = isRemoteStreamProcessingSupported; //-------

  var isApplyConstraintsSupported = false;
  /*global MediaStreamTrack:true */

  if (typeof MediaStreamTrack !== 'undefined' && 'applyConstraints' in MediaStreamTrack.prototype) {
    isApplyConstraintsSupported = true;
  }

  DetectRTC.isApplyConstraintsSupported = isApplyConstraintsSupported; //-------

  var isMultiMonitorScreenCapturingSupported = false;

  if (DetectRTC.browser.isFirefox && DetectRTC.browser.version >= 43) {
    // version 43 merely supports platforms for multi-monitors
    // version 44 will support exact multi-monitor selection i.e. you can select any monitor for screen capturing.
    isMultiMonitorScreenCapturingSupported = true;
  }

  DetectRTC.isMultiMonitorScreenCapturingSupported = isMultiMonitorScreenCapturingSupported;
  DetectRTC.isPromisesSupported = !!('Promise' in window); // version is generated by "grunt"

  DetectRTC.version = '1.3.7';

  if (typeof DetectRTC === 'undefined') {
    window.DetectRTC = {};
  }

  var MediaStream = window.MediaStream;

  if (typeof MediaStream === 'undefined' && typeof webkitMediaStream !== 'undefined') {
    MediaStream = webkitMediaStream;
  }

  if (typeof MediaStream !== 'undefined' && typeof MediaStream === 'function') {
    DetectRTC.MediaStream = Object.keys(MediaStream.prototype);
  } else DetectRTC.MediaStream = false;

  if (typeof MediaStreamTrack !== 'undefined') {
    DetectRTC.MediaStreamTrack = Object.keys(MediaStreamTrack.prototype);
  } else DetectRTC.MediaStreamTrack = false;

  var RTCPeerConnection = window.RTCPeerConnection || window.mozRTCPeerConnection || window.webkitRTCPeerConnection;

  if (typeof RTCPeerConnection !== 'undefined') {
    DetectRTC.RTCPeerConnection = Object.keys(RTCPeerConnection.prototype);
  } else DetectRTC.RTCPeerConnection = false;

  window.DetectRTC = DetectRTC;

  if (true
  /* && !!module.exports*/
  ) {
      module.exports = DetectRTC;
    }

  if (true) {
    !(__WEBPACK_AMD_DEFINE_ARRAY__ = [], __WEBPACK_AMD_DEFINE_RESULT__ = (function () {
      return DetectRTC;
    }).apply(exports, __WEBPACK_AMD_DEFINE_ARRAY__),
				__WEBPACK_AMD_DEFINE_RESULT__ !== undefined && (module.exports = __WEBPACK_AMD_DEFINE_RESULT__));
  }
})();
/* WEBPACK VAR INJECTION */}.call(exports, __webpack_require__(15), __webpack_require__(21)))

}),
/* 21 */
(function(module, exports) {

var g; // This works in non-strict mode

g = function () {
  return this;
}();

try {
  // This works if eval is allowed (see CSP)
  g = g || Function("return this")() || (1, eval)("this");
} catch (e) {
  // This works if the window reference is available
  if (typeof window === "object") g = window;
} // g can still be undefined, but nothing to do about it...
// We return undefined, instead of nothing here, so it's
// easier to handle this case. if(!global) { ...}


module.exports = g;

}),
/* 22 */
(function(module, exports, __webpack_require__) {

var __WEBPACK_AMD_DEFINE_ARRAY__, __WEBPACK_AMD_DEFINE_RESULT__;/*!
 * jQuery JavaScript Library v3.3.1
 * https://jquery.com/
 *
 * Includes Sizzle.js
 * https://sizzlejs.com/
 *
 * Copyright JS Foundation and other contributors
 * Released under the MIT license
 * https://jquery.org/license
 *
 * Date: 2018-01-20T17:24Z
 */
(function (global, factory) {
  "use strict";

  if (typeof module === "object" && typeof module.exports === "object") {
    // For CommonJS and CommonJS-like environments where a proper `window`
    // is present, execute the factory and get jQuery.
    // For environments that do not have a `window` with a `document`
    // (such as Node.js), expose a factory as module.exports.
    // This accentuates the need for the creation of a real `window`.
    // e.g. var jQuery = require("jquery")(window);
    // See ticket #14549 for more info.
    module.exports = global.document ? factory(global, true) : function (w) {
      if (!w.document) {
        throw new Error("jQuery requires a window with a document");
      }

      return factory(w);
    };
  } else {
    factory(global);
  } // Pass this if window is not defined yet

})(typeof window !== "undefined" ? window : this, function (window, noGlobal) {
  // Edge <= 12 - 13+, Firefox <=18 - 45+, IE 10 - 11, Safari 5.1 - 9+, iOS 6 - 9.1
  // throw exceptions when non-strict code (e.g., ASP.NET 4.5) accesses strict mode
  // arguments.callee.caller (trac-13335). But as of jQuery 3.0 (2016), strict mode should be common
  // enough that all such attempts are guarded in a try block.
  "use strict";

  var arr = [];
  var document = window.document;
  var getProto = Object.getPrototypeOf;
  var slice = arr.slice;
  var concat = arr.concat;
  var push = arr.push;
  var indexOf = arr.indexOf;
  var class2type = {};
  var toString = class2type.toString;
  var hasOwn = class2type.hasOwnProperty;
  var fnToString = hasOwn.toString;
  var ObjectFunctionString = fnToString.call(Object);
  var support = {};

  var isFunction = function isFunction(obj) {
    // Support: Chrome <=57, Firefox <=52
    // In some browsers, typeof returns "function" for HTML <object> elements
    // (i.e., `typeof document.createElement( "object" ) === "function"`).
    // We don't want to classify *any* DOM node as a function.
    return typeof obj === "function" && typeof obj.nodeType !== "number";
  };

  var isWindow = function isWindow(obj) {
    return obj != null && obj === obj.window;
  };

  var preservedScriptAttributes = {
    type: true,
    src: true,
    noModule: true
  };

  function DOMEval(code, doc, node) {
    doc = doc || document;
    var i,
        script = doc.createElement("script");
    script.text = code;

    if (node) {
      for (i in preservedScriptAttributes) {
        if (node[i]) {
          script[i] = node[i];
        }
      }
    }

    doc.head.appendChild(script).parentNode.removeChild(script);
  }

  function toType(obj) {
    if (obj == null) {
      return obj + "";
    } // Support: Android <=2.3 only (functionish RegExp)


    return typeof obj === "object" || typeof obj === "function" ? class2type[toString.call(obj)] || "object" : typeof obj;
  }
  /* global Symbol */
  // Defining this global in .eslintrc.json would create a danger of using the global
  // unguarded in another place, it seems safer to define global only for this module


  var version = "3.3.1",
      // Define a local copy of jQuery
  jQuery = function (selector, context) {
    // The jQuery object is actually just the init constructor 'enhanced'
    // Need init if jQuery is called (just allow error to be thrown if not included)
    return new jQuery.fn.init(selector, context);
  },
      // Support: Android <=4.0 only
  // Make sure we trim BOM and NBSP
  rtrim = /^[\s\uFEFF\xA0]+|[\s\uFEFF\xA0]+$/g;

  jQuery.fn = jQuery.prototype = {
    // The current version of jQuery being used
    jquery: version,
    constructor: jQuery,
    // The default length of a jQuery object is 0
    length: 0,
    toArray: function () {
      return slice.call(this);
    },
    // Get the Nth element in the matched element set OR
    // Get the whole matched element set as a clean array
    get: function (num) {
      // Return all the elements in a clean array
      if (num == null) {
        return slice.call(this);
      } // Return just the one element from the set


      return num < 0 ? this[num + this.length] : this[num];
    },
    // Take an array of elements and push it onto the stack
    // (returning the new matched element set)
    pushStack: function (elems) {
      // Build a new jQuery matched element set
      var ret = jQuery.merge(this.constructor(), elems); // Add the old object onto the stack (as a reference)

      ret.prevObject = this; // Return the newly-formed element set

      return ret;
    },
    // Execute a callback for every element in the matched set.
    each: function (callback) {
      return jQuery.each(this, callback);
    },
    map: function (callback) {
      return this.pushStack(jQuery.map(this, function (elem, i) {
        return callback.call(elem, i, elem);
      }));
    },
    slice: function () {
      return this.pushStack(slice.apply(this, arguments));
    },
    first: function () {
      return this.eq(0);
    },
    last: function () {
      return this.eq(-1);
    },
    eq: function (i) {
      var len = this.length,
          j = +i + (i < 0 ? len : 0);
      return this.pushStack(j >= 0 && j < len ? [this[j]] : []);
    },
    end: function () {
      return this.prevObject || this.constructor();
    },
    // For internal use only.
    // Behaves like an Array's method, not like a jQuery method.
    push: push,
    sort: arr.sort,
    splice: arr.splice
  };

  jQuery.extend = jQuery.fn.extend = function () {
    var options,
        name,
        src,
        copy,
        copyIsArray,
        clone,
        target = arguments[0] || {},
        i = 1,
        length = arguments.length,
        deep = false; // Handle a deep copy situation

    if (typeof target === "boolean") {
      deep = target; // Skip the boolean and the target

      target = arguments[i] || {};
      i++;
    } // Handle case when target is a string or something (possible in deep copy)


    if (typeof target !== "object" && !isFunction(target)) {
      target = {};
    } // Extend jQuery itself if only one argument is passed


    if (i === length) {
      target = this;
      i--;
    }

    for (; i < length; i++) {
      // Only deal with non-null/undefined values
      if ((options = arguments[i]) != null) {
        // Extend the base object
        for (name in options) {
          src = target[name];
          copy = options[name]; // Prevent never-ending loop

          if (target === copy) {
            continue;
          } // Recurse if we're merging plain objects or arrays


          if (deep && copy && (jQuery.isPlainObject(copy) || (copyIsArray = Array.isArray(copy)))) {
            if (copyIsArray) {
              copyIsArray = false;
              clone = src && Array.isArray(src) ? src : [];
            } else {
              clone = src && jQuery.isPlainObject(src) ? src : {};
            } // Never move original objects, clone them


            target[name] = jQuery.extend(deep, clone, copy); // Don't bring in undefined values
          } else if (copy !== undefined) {
            target[name] = copy;
          }
        }
      }
    } // Return the modified object


    return target;
  };

  jQuery.extend({
    // Unique for each copy of jQuery on the page
    expando: "jQuery" + (version + Math.random()).replace(/\D/g, ""),
    // Assume jQuery is ready without the ready module
    isReady: true,
    error: function (msg) {
      throw new Error(msg);
    },
    noop: function () {},
    isPlainObject: function (obj) {
      var proto, Ctor; // Detect obvious negatives
      // Use toString instead of jQuery.type to catch host objects

      if (!obj || toString.call(obj) !== "[object Object]") {
        return false;
      }

      proto = getProto(obj); // Objects with no prototype (e.g., `Object.create( null )`) are plain

      if (!proto) {
        return true;
      } // Objects with prototype are plain iff they were constructed by a global Object function


      Ctor = hasOwn.call(proto, "constructor") && proto.constructor;
      return typeof Ctor === "function" && fnToString.call(Ctor) === ObjectFunctionString;
    },
    isEmptyObject: function (obj) {
      /* eslint-disable no-unused-vars */
      // See https://github.com/eslint/eslint/issues/6125
      var name;

      for (name in obj) {
        return false;
      }

      return true;
    },
    // Evaluates a script in a global context
    globalEval: function (code) {
      DOMEval(code);
    },
    each: function (obj, callback) {
      var length,
          i = 0;

      if (isArrayLike(obj)) {
        length = obj.length;

        for (; i < length; i++) {
          if (callback.call(obj[i], i, obj[i]) === false) {
            break;
          }
        }
      } else {
        for (i in obj) {
          if (callback.call(obj[i], i, obj[i]) === false) {
            break;
          }
        }
      }

      return obj;
    },
    // Support: Android <=4.0 only
    trim: function (text) {
      return text == null ? "" : (text + "").replace(rtrim, "");
    },
    // results is for internal usage only
    makeArray: function (arr, results) {
      var ret = results || [];

      if (arr != null) {
        if (isArrayLike(Object(arr))) {
          jQuery.merge(ret, typeof arr === "string" ? [arr] : arr);
        } else {
          push.call(ret, arr);
        }
      }

      return ret;
    },
    inArray: function (elem, arr, i) {
      return arr == null ? -1 : indexOf.call(arr, elem, i);
    },
    // Support: Android <=4.0 only, PhantomJS 1 only
    // push.apply(_, arraylike) throws on ancient WebKit
    merge: function (first, second) {
      var len = +second.length,
          j = 0,
          i = first.length;

      for (; j < len; j++) {
        first[i++] = second[j];
      }

      first.length = i;
      return first;
    },
    grep: function (elems, callback, invert) {
      var callbackInverse,
          matches = [],
          i = 0,
          length = elems.length,
          callbackExpect = !invert; // Go through the array, only saving the items
      // that pass the validator function

      for (; i < length; i++) {
        callbackInverse = !callback(elems[i], i);

        if (callbackInverse !== callbackExpect) {
          matches.push(elems[i]);
        }
      }

      return matches;
    },
    // arg is for internal usage only
    map: function (elems, callback, arg) {
      var length,
          value,
          i = 0,
          ret = []; // Go through the array, translating each of the items to their new values

      if (isArrayLike(elems)) {
        length = elems.length;

        for (; i < length; i++) {
          value = callback(elems[i], i, arg);

          if (value != null) {
            ret.push(value);
          }
        } // Go through every key on the object,

      } else {
        for (i in elems) {
          value = callback(elems[i], i, arg);

          if (value != null) {
            ret.push(value);
          }
        }
      } // Flatten any nested arrays


      return concat.apply([], ret);
    },
    // A global GUID counter for objects
    guid: 1,
    // jQuery.support is not used in Core but other projects attach their
    // properties to it so it needs to exist.
    support: support
  });

  if (typeof Symbol === "function") {
    jQuery.fn[Symbol.iterator] = arr[Symbol.iterator];
  } // Populate the class2type map


  jQuery.each("Boolean Number String Function Array Date RegExp Object Error Symbol".split(" "), function (i, name) {
    class2type["[object " + name + "]"] = name.toLowerCase();
  });

  function isArrayLike(obj) {
    // Support: real iOS 8.2 only (not reproducible in simulator)
    // `in` check used to prevent JIT error (gh-2145)
    // hasOwn isn't used here due to false negatives
    // regarding Nodelist length in IE
    var length = !!obj && "length" in obj && obj.length,
        type = toType(obj);

    if (isFunction(obj) || isWindow(obj)) {
      return false;
    }

    return type === "array" || length === 0 || typeof length === "number" && length > 0 && length - 1 in obj;
  }

  var Sizzle =
  /*!
   * Sizzle CSS Selector Engine v2.3.3
   * https://sizzlejs.com/
   *
   * Copyright jQuery Foundation and other contributors
   * Released under the MIT license
   * http://jquery.org/license
   *
   * Date: 2016-08-08
   */
  function (window) {
    var i,
        support,
        Expr,
        getText,
        isXML,
        tokenize,
        compile,
        select,
        outermostContext,
        sortInput,
        hasDuplicate,
        // Local document vars
    setDocument,
        document,
        docElem,
        documentIsHTML,
        rbuggyQSA,
        rbuggyMatches,
        matches,
        contains,
        // Instance-specific data
    expando = "sizzle" + 1 * new Date(),
        preferredDoc = window.document,
        dirruns = 0,
        done = 0,
        classCache = createCache(),
        tokenCache = createCache(),
        compilerCache = createCache(),
        sortOrder = function (a, b) {
      if (a === b) {
        hasDuplicate = true;
      }

      return 0;
    },
        // Instance methods
    hasOwn = {}.hasOwnProperty,
        arr = [],
        pop = arr.pop,
        push_native = arr.push,
        push = arr.push,
        slice = arr.slice,
        // Use a stripped-down indexOf as it's faster than native
    // https://jsperf.com/thor-indexof-vs-for/5
    indexOf = function (list, elem) {
      var i = 0,
          len = list.length;

      for (; i < len; i++) {
        if (list[i] === elem) {
          return i;
        }
      }

      return -1;
    },
        booleans = "checked|selected|async|autofocus|autoplay|controls|defer|disabled|hidden|ismap|loop|multiple|open|readonly|required|scoped",
        // Regular expressions
    // http://www.w3.org/TR/css3-selectors/#whitespace
    whitespace = "[\\x20\\t\\r\\n\\f]",
        // http://www.w3.org/TR/CSS21/syndata.html#value-def-identifier
    identifier = "(?:\\\\.|[\\w-]|[^\0-\\xa0])+",
        // Attribute selectors: http://www.w3.org/TR/selectors/#attribute-selectors
    attributes = "\\[" + whitespace + "*(" + identifier + ")(?:" + whitespace + // Operator (capture 2)
    "*([*^$|!~]?=)" + whitespace + // "Attribute values must be CSS identifiers [capture 5] or strings [capture 3 or capture 4]"
    "*(?:'((?:\\\\.|[^\\\\'])*)'|\"((?:\\\\.|[^\\\\\"])*)\"|(" + identifier + "))|)" + whitespace + "*\\]",
        pseudos = ":(" + identifier + ")(?:\\((" + // To reduce the number of selectors needing tokenize in the preFilter, prefer arguments:
    // 1. quoted (capture 3; capture 4 or capture 5)
    "('((?:\\\\.|[^\\\\'])*)'|\"((?:\\\\.|[^\\\\\"])*)\")|" + // 2. simple (capture 6)
    "((?:\\\\.|[^\\\\()[\\]]|" + attributes + ")*)|" + // 3. anything else (capture 2)
    ".*" + ")\\)|)",
        // Leading and non-escaped trailing whitespace, capturing some non-whitespace characters preceding the latter
    rwhitespace = new RegExp(whitespace + "+", "g"),
        rtrim = new RegExp("^" + whitespace + "+|((?:^|[^\\\\])(?:\\\\.)*)" + whitespace + "+$", "g"),
        rcomma = new RegExp("^" + whitespace + "*," + whitespace + "*"),
        rcombinators = new RegExp("^" + whitespace + "*([>+~]|" + whitespace + ")" + whitespace + "*"),
        rattributeQuotes = new RegExp("=" + whitespace + "*([^\\]'\"]*?)" + whitespace + "*\\]", "g"),
        rpseudo = new RegExp(pseudos),
        ridentifier = new RegExp("^" + identifier + "$"),
        matchExpr = {
      "ID": new RegExp("^#(" + identifier + ")"),
      "CLASS": new RegExp("^\\.(" + identifier + ")"),
      "TAG": new RegExp("^(" + identifier + "|[*])"),
      "ATTR": new RegExp("^" + attributes),
      "PSEUDO": new RegExp("^" + pseudos),
      "CHILD": new RegExp("^:(only|first|last|nth|nth-last)-(child|of-type)(?:\\(" + whitespace + "*(even|odd|(([+-]|)(\\d*)n|)" + whitespace + "*(?:([+-]|)" + whitespace + "*(\\d+)|))" + whitespace + "*\\)|)", "i"),
      "bool": new RegExp("^(?:" + booleans + ")$", "i"),
      // For use in libraries implementing .is()
      // We use this for POS matching in `select`
      "needsContext": new RegExp("^" + whitespace + "*[>+~]|:(even|odd|eq|gt|lt|nth|first|last)(?:\\(" + whitespace + "*((?:-\\d)?\\d*)" + whitespace + "*\\)|)(?=[^-]|$)", "i")
    },
        rinputs = /^(?:input|select|textarea|button)$/i,
        rheader = /^h\d$/i,
        rnative = /^[^{]+\{\s*\[native \w/,
        // Easily-parseable/retrievable ID or TAG or CLASS selectors
    rquickExpr = /^(?:#([\w-]+)|(\w+)|\.([\w-]+))$/,
        rsibling = /[+~]/,
        // CSS escapes
    // http://www.w3.org/TR/CSS21/syndata.html#escaped-characters
    runescape = new RegExp("\\\\([\\da-f]{1,6}" + whitespace + "?|(" + whitespace + ")|.)", "ig"),
        funescape = function (_, escaped, escapedWhitespace) {
      var high = "0x" + escaped - 0x10000; // NaN means non-codepoint
      // Support: Firefox<24
      // Workaround erroneous numeric interpretation of +"0x"

      return high !== high || escapedWhitespace ? escaped : high < 0 ? // BMP codepoint
      String.fromCharCode(high + 0x10000) : // Supplemental Plane codepoint (surrogate pair)
      String.fromCharCode(high >> 10 | 0xD800, high & 0x3FF | 0xDC00);
    },
        // CSS string/identifier serialization
    // https://drafts.csswg.org/cssom/#common-serializing-idioms
    rcssescape = /([\0-\x1f\x7f]|^-?\d)|^-$|[^\0-\x1f\x7f-\uFFFF\w-]/g,
        fcssescape = function (ch, asCodePoint) {
      if (asCodePoint) {
        // U+0000 NULL becomes U+FFFD REPLACEMENT CHARACTER
        if (ch === "\0") {
          return "\uFFFD";
        } // Control characters and (dependent upon position) numbers get escaped as code points


        return ch.slice(0, -1) + "\\" + ch.charCodeAt(ch.length - 1).toString(16) + " ";
      } // Other potentially-special ASCII characters get backslash-escaped


      return "\\" + ch;
    },
        // Used for iframes
    // See setDocument()
    // Removing the function wrapper causes a "Permission Denied"
    // error in IE
    unloadHandler = function () {
      setDocument();
    },
        disabledAncestor = addCombinator(function (elem) {
      return elem.disabled === true && ("form" in elem || "label" in elem);
    }, {
      dir: "parentNode",
      next: "legend"
    }); // Optimize for push.apply( _, NodeList )


    try {
      push.apply(arr = slice.call(preferredDoc.childNodes), preferredDoc.childNodes); // Support: Android<4.0
      // Detect silently failing push.apply

      arr[preferredDoc.childNodes.length].nodeType;
    } catch (e) {
      push = {
        apply: arr.length ? // Leverage slice if possible
        function (target, els) {
          push_native.apply(target, slice.call(els));
        } : // Support: IE<9
        // Otherwise append directly
        function (target, els) {
          var j = target.length,
              i = 0; // Can't trust NodeList.length

          while (target[j++] = els[i++]) {}

          target.length = j - 1;
        }
      };
    }

    function Sizzle(selector, context, results, seed) {
      var m,
          i,
          elem,
          nid,
          match,
          groups,
          newSelector,
          newContext = context && context.ownerDocument,
          // nodeType defaults to 9, since context defaults to document
      nodeType = context ? context.nodeType : 9;
      results = results || []; // Return early from calls with invalid selector or context

      if (typeof selector !== "string" || !selector || nodeType !== 1 && nodeType !== 9 && nodeType !== 11) {
        return results;
      } // Try to shortcut find operations (as opposed to filters) in HTML documents


      if (!seed) {
        if ((context ? context.ownerDocument || context : preferredDoc) !== document) {
          setDocument(context);
        }

        context = context || document;

        if (documentIsHTML) {
          // If the selector is sufficiently simple, try using a "get*By*" DOM method
          // (excepting DocumentFragment context, where the methods don't exist)
          if (nodeType !== 11 && (match = rquickExpr.exec(selector))) {
            // ID selector
            if (m = match[1]) {
              // Document context
              if (nodeType === 9) {
                if (elem = context.getElementById(m)) {
                  // Support: IE, Opera, Webkit
                  // TODO: identify versions
                  // getElementById can match elements by name instead of ID
                  if (elem.id === m) {
                    results.push(elem);
                    return results;
                  }
                } else {
                  return results;
                } // Element context

              } else {
                // Support: IE, Opera, Webkit
                // TODO: identify versions
                // getElementById can match elements by name instead of ID
                if (newContext && (elem = newContext.getElementById(m)) && contains(context, elem) && elem.id === m) {
                  results.push(elem);
                  return results;
                }
              } // Type selector

            } else if (match[2]) {
              push.apply(results, context.getElementsByTagName(selector));
              return results; // Class selector
            } else if ((m = match[3]) && support.getElementsByClassName && context.getElementsByClassName) {
              push.apply(results, context.getElementsByClassName(m));
              return results;
            }
          } // Take advantage of querySelectorAll


          if (support.qsa && !compilerCache[selector + " "] && (!rbuggyQSA || !rbuggyQSA.test(selector))) {
            if (nodeType !== 1) {
              newContext = context;
              newSelector = selector; // qSA looks outside Element context, which is not what we want
              // Thanks to Andrew Dupont for this workaround technique
              // Support: IE <=8
              // Exclude object elements
            } else if (context.nodeName.toLowerCase() !== "object") {
              // Capture the context ID, setting it first if necessary
              if (nid = context.getAttribute("id")) {
                nid = nid.replace(rcssescape, fcssescape);
              } else {
                context.setAttribute("id", nid = expando);
              } // Prefix every selector in the list


              groups = tokenize(selector);
              i = groups.length;

              while (i--) {
                groups[i] = "#" + nid + " " + toSelector(groups[i]);
              }

              newSelector = groups.join(","); // Expand context for sibling selectors

              newContext = rsibling.test(selector) && testContext(context.parentNode) || context;
            }

            if (newSelector) {
              try {
                push.apply(results, newContext.querySelectorAll(newSelector));
                return results;
              } catch (qsaError) {} finally {
                if (nid === expando) {
                  context.removeAttribute("id");
                }
              }
            }
          }
        }
      } // All others


      return select(selector.replace(rtrim, "$1"), context, results, seed);
    }
    /**
     * Create key-value caches of limited size
     * @returns {function(string, object)} Returns the Object data after storing it on itself with
     *	property name the (space-suffixed) string and (if the cache is larger than Expr.cacheLength)
     *	deleting the oldest entry
     */


    function createCache() {
      var keys = [];

      function cache(key, value) {
        // Use (key + " ") to avoid collision with native prototype properties (see Issue #157)
        if (keys.push(key + " ") > Expr.cacheLength) {
          // Only keep the most recent entries
          delete cache[keys.shift()];
        }

        return cache[key + " "] = value;
      }

      return cache;
    }
    /**
     * Mark a function for special use by Sizzle
     * @param {Function} fn The function to mark
     */


    function markFunction(fn) {
      fn[expando] = true;
      return fn;
    }
    /**
     * Support testing using an element
     * @param {Function} fn Passed the created element and returns a boolean result
     */


    function assert(fn) {
      var el = document.createElement("fieldset");

      try {
        return !!fn(el);
      } catch (e) {
        return false;
      } finally {
        // Remove from its parent by default
        if (el.parentNode) {
          el.parentNode.removeChild(el);
        } // release memory in IE


        el = null;
      }
    }
    /**
     * Adds the same handler for all of the specified attrs
     * @param {String} attrs Pipe-separated list of attributes
     * @param {Function} handler The method that will be applied
     */


    function addHandle(attrs, handler) {
      var arr = attrs.split("|"),
          i = arr.length;

      while (i--) {
        Expr.attrHandle[arr[i]] = handler;
      }
    }
    /**
     * Checks document order of two siblings
     * @param {Element} a
     * @param {Element} b
     * @returns {Number} Returns less than 0 if a precedes b, greater than 0 if a follows b
     */


    function siblingCheck(a, b) {
      var cur = b && a,
          diff = cur && a.nodeType === 1 && b.nodeType === 1 && a.sourceIndex - b.sourceIndex; // Use IE sourceIndex if available on both nodes

      if (diff) {
        return diff;
      } // Check if b follows a


      if (cur) {
        while (cur = cur.nextSibling) {
          if (cur === b) {
            return -1;
          }
        }
      }

      return a ? 1 : -1;
    }
    /**
     * Returns a function to use in pseudos for input types
     * @param {String} type
     */


    function createInputPseudo(type) {
      return function (elem) {
        var name = elem.nodeName.toLowerCase();
        return name === "input" && elem.type === type;
      };
    }
    /**
     * Returns a function to use in pseudos for buttons
     * @param {String} type
     */


    function createButtonPseudo(type) {
      return function (elem) {
        var name = elem.nodeName.toLowerCase();
        return (name === "input" || name === "button") && elem.type === type;
      };
    }
    /**
     * Returns a function to use in pseudos for :enabled/:disabled
     * @param {Boolean} disabled true for :disabled; false for :enabled
     */


    function createDisabledPseudo(disabled) {
      // Known :disabled false positives: fieldset[disabled] > legend:nth-of-type(n+2) :can-disable
      return function (elem) {
        // Only certain elements can match :enabled or :disabled
        // https://html.spec.whatwg.org/multipage/scripting.html#selector-enabled
        // https://html.spec.whatwg.org/multipage/scripting.html#selector-disabled
        if ("form" in elem) {
          // Check for inherited disabledness on relevant non-disabled elements:
          // * listed form-associated elements in a disabled fieldset
          //   https://html.spec.whatwg.org/multipage/forms.html#category-listed
          //   https://html.spec.whatwg.org/multipage/forms.html#concept-fe-disabled
          // * option elements in a disabled optgroup
          //   https://html.spec.whatwg.org/multipage/forms.html#concept-option-disabled
          // All such elements have a "form" property.
          if (elem.parentNode && elem.disabled === false) {
            // Option elements defer to a parent optgroup if present
            if ("label" in elem) {
              if ("label" in elem.parentNode) {
                return elem.parentNode.disabled === disabled;
              } else {
                return elem.disabled === disabled;
              }
            } // Support: IE 6 - 11
            // Use the isDisabled shortcut property to check for disabled fieldset ancestors


            return elem.isDisabled === disabled || // Where there is no isDisabled, check manually

            /* jshint -W018 */
            elem.isDisabled !== !disabled && disabledAncestor(elem) === disabled;
          }

          return elem.disabled === disabled; // Try to winnow out elements that can't be disabled before trusting the disabled property.
          // Some victims get caught in our net (label, legend, menu, track), but it shouldn't
          // even exist on them, let alone have a boolean value.
        } else if ("label" in elem) {
          return elem.disabled === disabled;
        } // Remaining elements are neither :enabled nor :disabled


        return false;
      };
    }
    /**
     * Returns a function to use in pseudos for positionals
     * @param {Function} fn
     */


    function createPositionalPseudo(fn) {
      return markFunction(function (argument) {
        argument = +argument;
        return markFunction(function (seed, matches) {
          var j,
              matchIndexes = fn([], seed.length, argument),
              i = matchIndexes.length; // Match elements found at the specified indexes

          while (i--) {
            if (seed[j = matchIndexes[i]]) {
              seed[j] = !(matches[j] = seed[j]);
            }
          }
        });
      });
    }
    /**
     * Checks a node for validity as a Sizzle context
     * @param {Element|Object=} context
     * @returns {Element|Object|Boolean} The input node if acceptable, otherwise a falsy value
     */


    function testContext(context) {
      return context && typeof context.getElementsByTagName !== "undefined" && context;
    } // Expose support vars for convenience


    support = Sizzle.support = {};
    /**
     * Detects XML nodes
     * @param {Element|Object} elem An element or a document
     * @returns {Boolean} True iff elem is a non-HTML XML node
     */

    isXML = Sizzle.isXML = function (elem) {
      // documentElement is verified for cases where it doesn't yet exist
      // (such as loading iframes in IE - #4833)
      var documentElement = elem && (elem.ownerDocument || elem).documentElement;
      return documentElement ? documentElement.nodeName !== "HTML" : false;
    };
    /**
     * Sets document-related variables once based on the current document
     * @param {Element|Object} [doc] An element or document object to use to set the document
     * @returns {Object} Returns the current document
     */


    setDocument = Sizzle.setDocument = function (node) {
      var hasCompare,
          subWindow,
          doc = node ? node.ownerDocument || node : preferredDoc; // Return early if doc is invalid or already selected

      if (doc === document || doc.nodeType !== 9 || !doc.documentElement) {
        return document;
      } // Update global variables


      document = doc;
      docElem = document.documentElement;
      documentIsHTML = !isXML(document); // Support: IE 9-11, Edge
      // Accessing iframe documents after unload throws "permission denied" errors (jQuery #13936)

      if (preferredDoc !== document && (subWindow = document.defaultView) && subWindow.top !== subWindow) {
        // Support: IE 11, Edge
        if (subWindow.addEventListener) {
          subWindow.addEventListener("unload", unloadHandler, false); // Support: IE 9 - 10 only
        } else if (subWindow.attachEvent) {
          subWindow.attachEvent("onunload", unloadHandler);
        }
      }
      /* Attributes
      ---------------------------------------------------------------------- */
      // Support: IE<8
      // Verify that getAttribute really returns attributes and not properties
      // (excepting IE8 booleans)


      support.attributes = assert(function (el) {
        el.className = "i";
        return !el.getAttribute("className");
      });
      /* getElement(s)By*
      ---------------------------------------------------------------------- */
      // Check if getElementsByTagName("*") returns only elements

      support.getElementsByTagName = assert(function (el) {
        el.appendChild(document.createComment(""));
        return !el.getElementsByTagName("*").length;
      }); // Support: IE<9

      support.getElementsByClassName = rnative.test(document.getElementsByClassName); // Support: IE<10
      // Check if getElementById returns elements by name
      // The broken getElementById methods don't pick up programmatically-set names,
      // so use a roundabout getElementsByName test

      support.getById = assert(function (el) {
        docElem.appendChild(el).id = expando;
        return !document.getElementsByName || !document.getElementsByName(expando).length;
      }); // ID filter and find

      if (support.getById) {
        Expr.filter["ID"] = function (id) {
          var attrId = id.replace(runescape, funescape);
          return function (elem) {
            return elem.getAttribute("id") === attrId;
          };
        };

        Expr.find["ID"] = function (id, context) {
          if (typeof context.getElementById !== "undefined" && documentIsHTML) {
            var elem = context.getElementById(id);
            return elem ? [elem] : [];
          }
        };
      } else {
        Expr.filter["ID"] = function (id) {
          var attrId = id.replace(runescape, funescape);
          return function (elem) {
            var node = typeof elem.getAttributeNode !== "undefined" && elem.getAttributeNode("id");
            return node && node.value === attrId;
          };
        }; // Support: IE 6 - 7 only
        // getElementById is not reliable as a find shortcut


        Expr.find["ID"] = function (id, context) {
          if (typeof context.getElementById !== "undefined" && documentIsHTML) {
            var node,
                i,
                elems,
                elem = context.getElementById(id);

            if (elem) {
              // Verify the id attribute
              node = elem.getAttributeNode("id");

              if (node && node.value === id) {
                return [elem];
              } // Fall back on getElementsByName


              elems = context.getElementsByName(id);
              i = 0;

              while (elem = elems[i++]) {
                node = elem.getAttributeNode("id");

                if (node && node.value === id) {
                  return [elem];
                }
              }
            }

            return [];
          }
        };
      } // Tag


      Expr.find["TAG"] = support.getElementsByTagName ? function (tag, context) {
        if (typeof context.getElementsByTagName !== "undefined") {
          return context.getElementsByTagName(tag); // DocumentFragment nodes don't have gEBTN
        } else if (support.qsa) {
          return context.querySelectorAll(tag);
        }
      } : function (tag, context) {
        var elem,
            tmp = [],
            i = 0,
            // By happy coincidence, a (broken) gEBTN appears on DocumentFragment nodes too
        results = context.getElementsByTagName(tag); // Filter out possible comments

        if (tag === "*") {
          while (elem = results[i++]) {
            if (elem.nodeType === 1) {
              tmp.push(elem);
            }
          }

          return tmp;
        }

        return results;
      }; // Class

      Expr.find["CLASS"] = support.getElementsByClassName && function (className, context) {
        if (typeof context.getElementsByClassName !== "undefined" && documentIsHTML) {
          return context.getElementsByClassName(className);
        }
      };
      /* QSA/matchesSelector
      ---------------------------------------------------------------------- */
      // QSA and matchesSelector support
      // matchesSelector(:active) reports false when true (IE9/Opera 11.5)


      rbuggyMatches = []; // qSa(:focus) reports false when true (Chrome 21)
      // We allow this because of a bug in IE8/9 that throws an error
      // whenever `document.activeElement` is accessed on an iframe
      // So, we allow :focus to pass through QSA all the time to avoid the IE error
      // See https://bugs.jquery.com/ticket/13378

      rbuggyQSA = [];

      if (support.qsa = rnative.test(document.querySelectorAll)) {
        // Build QSA regex
        // Regex strategy adopted from Diego Perini
        assert(function (el) {
          // Select is set to empty string on purpose
          // This is to test IE's treatment of not explicitly
          // setting a boolean content attribute,
          // since its presence should be enough
          // https://bugs.jquery.com/ticket/12359
          docElem.appendChild(el).innerHTML = "<a id='" + expando + "'></a>" + "<select id='" + expando + "-\r\\' msallowcapture=''>" + "<option selected=''></option></select>"; // Support: IE8, Opera 11-12.16
          // Nothing should be selected when empty strings follow ^= or $= or *=
          // The test attribute must be unknown in Opera but "safe" for WinRT
          // https://msdn.microsoft.com/en-us/library/ie/hh465388.aspx#attribute_section

          if (el.querySelectorAll("[msallowcapture^='']").length) {
            rbuggyQSA.push("[*^$]=" + whitespace + "*(?:''|\"\")");
          } // Support: IE8
          // Boolean attributes and "value" are not treated correctly


          if (!el.querySelectorAll("[selected]").length) {
            rbuggyQSA.push("\\[" + whitespace + "*(?:value|" + booleans + ")");
          } // Support: Chrome<29, Android<4.4, Safari<7.0+, iOS<7.0+, PhantomJS<1.9.8+


          if (!el.querySelectorAll("[id~=" + expando + "-]").length) {
            rbuggyQSA.push("~=");
          } // Webkit/Opera - :checked should return selected option elements
          // http://www.w3.org/TR/2011/REC-css3-selectors-20110929/#checked
          // IE8 throws error here and will not see later tests


          if (!el.querySelectorAll(":checked").length) {
            rbuggyQSA.push(":checked");
          } // Support: Safari 8+, iOS 8+
          // https://bugs.webkit.org/show_bug.cgi?id=136851
          // In-page `selector#id sibling-combinator selector` fails


          if (!el.querySelectorAll("a#" + expando + "+*").length) {
            rbuggyQSA.push(".#.+[+~]");
          }
        });
        assert(function (el) {
          el.innerHTML = "<a href='' disabled='disabled'></a>" + "<select disabled='disabled'><option/></select>"; // Support: Windows 8 Native Apps
          // The type and name attributes are restricted during .innerHTML assignment

          var input = document.createElement("input");
          input.setAttribute("type", "hidden");
          el.appendChild(input).setAttribute("name", "D"); // Support: IE8
          // Enforce case-sensitivity of name attribute

          if (el.querySelectorAll("[name=d]").length) {
            rbuggyQSA.push("name" + whitespace + "*[*^$|!~]?=");
          } // FF 3.5 - :enabled/:disabled and hidden elements (hidden elements are still enabled)
          // IE8 throws error here and will not see later tests


          if (el.querySelectorAll(":enabled").length !== 2) {
            rbuggyQSA.push(":enabled", ":disabled");
          } // Support: IE9-11+
          // IE's :disabled selector does not pick up the children of disabled fieldsets


          docElem.appendChild(el).disabled = true;

          if (el.querySelectorAll(":disabled").length !== 2) {
            rbuggyQSA.push(":enabled", ":disabled");
          } // Opera 10-11 does not throw on post-comma invalid pseudos


          el.querySelectorAll("*,:x");
          rbuggyQSA.push(",.*:");
        });
      }

      if (support.matchesSelector = rnative.test(matches = docElem.matches || docElem.webkitMatchesSelector || docElem.mozMatchesSelector || docElem.oMatchesSelector || docElem.msMatchesSelector)) {
        assert(function (el) {
          // Check to see if it's possible to do matchesSelector
          // on a disconnected node (IE 9)
          support.disconnectedMatch = matches.call(el, "*"); // This should fail with an exception
          // Gecko does not error, returns false instead

          matches.call(el, "[s!='']:x");
          rbuggyMatches.push("!=", pseudos);
        });
      }

      rbuggyQSA = rbuggyQSA.length && new RegExp(rbuggyQSA.join("|"));
      rbuggyMatches = rbuggyMatches.length && new RegExp(rbuggyMatches.join("|"));
      /* Contains
      ---------------------------------------------------------------------- */

      hasCompare = rnative.test(docElem.compareDocumentPosition); // Element contains another
      // Purposefully self-exclusive
      // As in, an element does not contain itself

      contains = hasCompare || rnative.test(docElem.contains) ? function (a, b) {
        var adown = a.nodeType === 9 ? a.documentElement : a,
            bup = b && b.parentNode;
        return a === bup || !!(bup && bup.nodeType === 1 && (adown.contains ? adown.contains(bup) : a.compareDocumentPosition && a.compareDocumentPosition(bup) & 16));
      } : function (a, b) {
        if (b) {
          while (b = b.parentNode) {
            if (b === a) {
              return true;
            }
          }
        }

        return false;
      };
      /* Sorting
      ---------------------------------------------------------------------- */
      // Document order sorting

      sortOrder = hasCompare ? function (a, b) {
        // Flag for duplicate removal
        if (a === b) {
          hasDuplicate = true;
          return 0;
        } // Sort on method existence if only one input has compareDocumentPosition


        var compare = !a.compareDocumentPosition - !b.compareDocumentPosition;

        if (compare) {
          return compare;
        } // Calculate position if both inputs belong to the same document


        compare = (a.ownerDocument || a) === (b.ownerDocument || b) ? a.compareDocumentPosition(b) : // Otherwise we know they are disconnected
        1; // Disconnected nodes

        if (compare & 1 || !support.sortDetached && b.compareDocumentPosition(a) === compare) {
          // Choose the first element that is related to our preferred document
          if (a === document || a.ownerDocument === preferredDoc && contains(preferredDoc, a)) {
            return -1;
          }

          if (b === document || b.ownerDocument === preferredDoc && contains(preferredDoc, b)) {
            return 1;
          } // Maintain original order


          return sortInput ? indexOf(sortInput, a) - indexOf(sortInput, b) : 0;
        }

        return compare & 4 ? -1 : 1;
      } : function (a, b) {
        // Exit early if the nodes are identical
        if (a === b) {
          hasDuplicate = true;
          return 0;
        }

        var cur,
            i = 0,
            aup = a.parentNode,
            bup = b.parentNode,
            ap = [a],
            bp = [b]; // Parentless nodes are either documents or disconnected

        if (!aup || !bup) {
          return a === document ? -1 : b === document ? 1 : aup ? -1 : bup ? 1 : sortInput ? indexOf(sortInput, a) - indexOf(sortInput, b) : 0; // If the nodes are siblings, we can do a quick check
        } else if (aup === bup) {
          return siblingCheck(a, b);
        } // Otherwise we need full lists of their ancestors for comparison


        cur = a;

        while (cur = cur.parentNode) {
          ap.unshift(cur);
        }

        cur = b;

        while (cur = cur.parentNode) {
          bp.unshift(cur);
        } // Walk down the tree looking for a discrepancy


        while (ap[i] === bp[i]) {
          i++;
        }

        return i ? // Do a sibling check if the nodes have a common ancestor
        siblingCheck(ap[i], bp[i]) : // Otherwise nodes in our document sort first
        ap[i] === preferredDoc ? -1 : bp[i] === preferredDoc ? 1 : 0;
      };
      return document;
    };

    Sizzle.matches = function (expr, elements) {
      return Sizzle(expr, null, null, elements);
    };

    Sizzle.matchesSelector = function (elem, expr) {
      // Set document vars if needed
      if ((elem.ownerDocument || elem) !== document) {
        setDocument(elem);
      } // Make sure that attribute selectors are quoted


      expr = expr.replace(rattributeQuotes, "='$1']");

      if (support.matchesSelector && documentIsHTML && !compilerCache[expr + " "] && (!rbuggyMatches || !rbuggyMatches.test(expr)) && (!rbuggyQSA || !rbuggyQSA.test(expr))) {
        try {
          var ret = matches.call(elem, expr); // IE 9's matchesSelector returns false on disconnected nodes

          if (ret || support.disconnectedMatch || // As well, disconnected nodes are said to be in a document
          // fragment in IE 9
          elem.document && elem.document.nodeType !== 11) {
            return ret;
          }
        } catch (e) {}
      }

      return Sizzle(expr, document, null, [elem]).length > 0;
    };

    Sizzle.contains = function (context, elem) {
      // Set document vars if needed
      if ((context.ownerDocument || context) !== document) {
        setDocument(context);
      }

      return contains(context, elem);
    };

    Sizzle.attr = function (elem, name) {
      // Set document vars if needed
      if ((elem.ownerDocument || elem) !== document) {
        setDocument(elem);
      }

      var fn = Expr.attrHandle[name.toLowerCase()],
          // Don't get fooled by Object.prototype properties (jQuery #13807)
      val = fn && hasOwn.call(Expr.attrHandle, name.toLowerCase()) ? fn(elem, name, !documentIsHTML) : undefined;
      return val !== undefined ? val : support.attributes || !documentIsHTML ? elem.getAttribute(name) : (val = elem.getAttributeNode(name)) && val.specified ? val.value : null;
    };

    Sizzle.escape = function (sel) {
      return (sel + "").replace(rcssescape, fcssescape);
    };

    Sizzle.error = function (msg) {
      throw new Error("Syntax error, unrecognized expression: " + msg);
    };
    /**
     * Document sorting and removing duplicates
     * @param {ArrayLike} results
     */


    Sizzle.uniqueSort = function (results) {
      var elem,
          duplicates = [],
          j = 0,
          i = 0; // Unless we *know* we can detect duplicates, assume their presence

      hasDuplicate = !support.detectDuplicates;
      sortInput = !support.sortStable && results.slice(0);
      results.sort(sortOrder);

      if (hasDuplicate) {
        while (elem = results[i++]) {
          if (elem === results[i]) {
            j = duplicates.push(i);
          }
        }

        while (j--) {
          results.splice(duplicates[j], 1);
        }
      } // Clear input after sorting to release objects
      // See https://github.com/jquery/sizzle/pull/225


      sortInput = null;
      return results;
    };
    /**
     * Utility function for retrieving the text value of an array of DOM nodes
     * @param {Array|Element} elem
     */


    getText = Sizzle.getText = function (elem) {
      var node,
          ret = "",
          i = 0,
          nodeType = elem.nodeType;

      if (!nodeType) {
        // If no nodeType, this is expected to be an array
        while (node = elem[i++]) {
          // Do not traverse comment nodes
          ret += getText(node);
        }
      } else if (nodeType === 1 || nodeType === 9 || nodeType === 11) {
        // Use textContent for elements
        // innerText usage removed for consistency of new lines (jQuery #11153)
        if (typeof elem.textContent === "string") {
          return elem.textContent;
        } else {
          // Traverse its children
          for (elem = elem.firstChild; elem; elem = elem.nextSibling) {
            ret += getText(elem);
          }
        }
      } else if (nodeType === 3 || nodeType === 4) {
        return elem.nodeValue;
      } // Do not include comment or processing instruction nodes


      return ret;
    };

    Expr = Sizzle.selectors = {
      // Can be adjusted by the user
      cacheLength: 50,
      createPseudo: markFunction,
      match: matchExpr,
      attrHandle: {},
      find: {},
      relative: {
        ">": {
          dir: "parentNode",
          first: true
        },
        " ": {
          dir: "parentNode"
        },
        "+": {
          dir: "previousSibling",
          first: true
        },
        "~": {
          dir: "previousSibling"
        }
      },
      preFilter: {
        "ATTR": function (match) {
          match[1] = match[1].replace(runescape, funescape); // Move the given value to match[3] whether quoted or unquoted

          match[3] = (match[3] || match[4] || match[5] || "").replace(runescape, funescape);

          if (match[2] === "~=") {
            match[3] = " " + match[3] + " ";
          }

          return match.slice(0, 4);
        },
        "CHILD": function (match) {
          /* matches from matchExpr["CHILD"]
          	1 type (only|nth|...)
          	2 what (child|of-type)
          	3 argument (even|odd|\d*|\d*n([+-]\d+)?|...)
          	4 xn-component of xn+y argument ([+-]?\d*n|)
          	5 sign of xn-component
          	6 x of xn-component
          	7 sign of y-component
          	8 y of y-component
          */
          match[1] = match[1].toLowerCase();

          if (match[1].slice(0, 3) === "nth") {
            // nth-* requires argument
            if (!match[3]) {
              Sizzle.error(match[0]);
            } // numeric x and y parameters for Expr.filter.CHILD
            // remember that false/true cast respectively to 0/1


            match[4] = +(match[4] ? match[5] + (match[6] || 1) : 2 * (match[3] === "even" || match[3] === "odd"));
            match[5] = +(match[7] + match[8] || match[3] === "odd"); // other types prohibit arguments
          } else if (match[3]) {
            Sizzle.error(match[0]);
          }

          return match;
        },
        "PSEUDO": function (match) {
          var excess,
              unquoted = !match[6] && match[2];

          if (matchExpr["CHILD"].test(match[0])) {
            return null;
          } // Accept quoted arguments as-is


          if (match[3]) {
            match[2] = match[4] || match[5] || ""; // Strip excess characters from unquoted arguments
          } else if (unquoted && rpseudo.test(unquoted) && ( // Get excess from tokenize (recursively)
          excess = tokenize(unquoted, true)) && ( // advance to the next closing parenthesis
          excess = unquoted.indexOf(")", unquoted.length - excess) - unquoted.length)) {
            // excess is a negative index
            match[0] = match[0].slice(0, excess);
            match[2] = unquoted.slice(0, excess);
          } // Return only captures needed by the pseudo filter method (type and argument)


          return match.slice(0, 3);
        }
      },
      filter: {
        "TAG": function (nodeNameSelector) {
          var nodeName = nodeNameSelector.replace(runescape, funescape).toLowerCase();
          return nodeNameSelector === "*" ? function () {
            return true;
          } : function (elem) {
            return elem.nodeName && elem.nodeName.toLowerCase() === nodeName;
          };
        },
        "CLASS": function (className) {
          var pattern = classCache[className + " "];
          return pattern || (pattern = new RegExp("(^|" + whitespace + ")" + className + "(" + whitespace + "|$)")) && classCache(className, function (elem) {
            return pattern.test(typeof elem.className === "string" && elem.className || typeof elem.getAttribute !== "undefined" && elem.getAttribute("class") || "");
          });
        },
        "ATTR": function (name, operator, check) {
          return function (elem) {
            var result = Sizzle.attr(elem, name);

            if (result == null) {
              return operator === "!=";
            }

            if (!operator) {
              return true;
            }

            result += "";
            return operator === "=" ? result === check : operator === "!=" ? result !== check : operator === "^=" ? check && result.indexOf(check) === 0 : operator === "*=" ? check && result.indexOf(check) > -1 : operator === "$=" ? check && result.slice(-check.length) === check : operator === "~=" ? (" " + result.replace(rwhitespace, " ") + " ").indexOf(check) > -1 : operator === "|=" ? result === check || result.slice(0, check.length + 1) === check + "-" : false;
          };
        },
        "CHILD": function (type, what, argument, first, last) {
          var simple = type.slice(0, 3) !== "nth",
              forward = type.slice(-4) !== "last",
              ofType = what === "of-type";
          return first === 1 && last === 0 ? // Shortcut for :nth-*(n)
          function (elem) {
            return !!elem.parentNode;
          } : function (elem, context, xml) {
            var cache,
                uniqueCache,
                outerCache,
                node,
                nodeIndex,
                start,
                dir = simple !== forward ? "nextSibling" : "previousSibling",
                parent = elem.parentNode,
                name = ofType && elem.nodeName.toLowerCase(),
                useCache = !xml && !ofType,
                diff = false;

            if (parent) {
              // :(first|last|only)-(child|of-type)
              if (simple) {
                while (dir) {
                  node = elem;

                  while (node = node[dir]) {
                    if (ofType ? node.nodeName.toLowerCase() === name : node.nodeType === 1) {
                      return false;
                    }
                  } // Reverse direction for :only-* (if we haven't yet done so)


                  start = dir = type === "only" && !start && "nextSibling";
                }

                return true;
              }

              start = [forward ? parent.firstChild : parent.lastChild]; // non-xml :nth-child(...) stores cache data on `parent`

              if (forward && useCache) {
                // Seek `elem` from a previously-cached index
                // ...in a gzip-friendly way
                node = parent;
                outerCache = node[expando] || (node[expando] = {}); // Support: IE <9 only
                // Defend against cloned attroperties (jQuery gh-1709)

                uniqueCache = outerCache[node.uniqueID] || (outerCache[node.uniqueID] = {});
                cache = uniqueCache[type] || [];
                nodeIndex = cache[0] === dirruns && cache[1];
                diff = nodeIndex && cache[2];
                node = nodeIndex && parent.childNodes[nodeIndex];

                while (node = ++nodeIndex && node && node[dir] || ( // Fallback to seeking `elem` from the start
                diff = nodeIndex = 0) || start.pop()) {
                  // When found, cache indexes on `parent` and break
                  if (node.nodeType === 1 && ++diff && node === elem) {
                    uniqueCache[type] = [dirruns, nodeIndex, diff];
                    break;
                  }
                }
              } else {
                // Use previously-cached element index if available
                if (useCache) {
                  // ...in a gzip-friendly way
                  node = elem;
                  outerCache = node[expando] || (node[expando] = {}); // Support: IE <9 only
                  // Defend against cloned attroperties (jQuery gh-1709)

                  uniqueCache = outerCache[node.uniqueID] || (outerCache[node.uniqueID] = {});
                  cache = uniqueCache[type] || [];
                  nodeIndex = cache[0] === dirruns && cache[1];
                  diff = nodeIndex;
                } // xml :nth-child(...)
                // or :nth-last-child(...) or :nth(-last)?-of-type(...)


                if (diff === false) {
                  // Use the same loop as above to seek `elem` from the start
                  while (node = ++nodeIndex && node && node[dir] || (diff = nodeIndex = 0) || start.pop()) {
                    if ((ofType ? node.nodeName.toLowerCase() === name : node.nodeType === 1) && ++diff) {
                      // Cache the index of each encountered element
                      if (useCache) {
                        outerCache = node[expando] || (node[expando] = {}); // Support: IE <9 only
                        // Defend against cloned attroperties (jQuery gh-1709)

                        uniqueCache = outerCache[node.uniqueID] || (outerCache[node.uniqueID] = {});
                        uniqueCache[type] = [dirruns, diff];
                      }

                      if (node === elem) {
                        break;
                      }
                    }
                  }
                }
              } // Incorporate the offset, then check against cycle size


              diff -= last;
              return diff === first || diff % first === 0 && diff / first >= 0;
            }
          };
        },
        "PSEUDO": function (pseudo, argument) {
          // pseudo-class names are case-insensitive
          // http://www.w3.org/TR/selectors/#pseudo-classes
          // Prioritize by case sensitivity in case custom pseudos are added with uppercase letters
          // Remember that setFilters inherits from pseudos
          var args,
              fn = Expr.pseudos[pseudo] || Expr.setFilters[pseudo.toLowerCase()] || Sizzle.error("unsupported pseudo: " + pseudo); // The user may use createPseudo to indicate that
          // arguments are needed to create the filter function
          // just as Sizzle does

          if (fn[expando]) {
            return fn(argument);
          } // But maintain support for old signatures


          if (fn.length > 1) {
            args = [pseudo, pseudo, "", argument];
            return Expr.setFilters.hasOwnProperty(pseudo.toLowerCase()) ? markFunction(function (seed, matches) {
              var idx,
                  matched = fn(seed, argument),
                  i = matched.length;

              while (i--) {
                idx = indexOf(seed, matched[i]);
                seed[idx] = !(matches[idx] = matched[i]);
              }
            }) : function (elem) {
              return fn(elem, 0, args);
            };
          }

          return fn;
        }
      },
      pseudos: {
        // Potentially complex pseudos
        "not": markFunction(function (selector) {
          // Trim the selector passed to compile
          // to avoid treating leading and trailing
          // spaces as combinators
          var input = [],
              results = [],
              matcher = compile(selector.replace(rtrim, "$1"));
          return matcher[expando] ? markFunction(function (seed, matches, context, xml) {
            var elem,
                unmatched = matcher(seed, null, xml, []),
                i = seed.length; // Match elements unmatched by `matcher`

            while (i--) {
              if (elem = unmatched[i]) {
                seed[i] = !(matches[i] = elem);
              }
            }
          }) : function (elem, context, xml) {
            input[0] = elem;
            matcher(input, null, xml, results); // Don't keep the element (issue #299)

            input[0] = null;
            return !results.pop();
          };
        }),
        "has": markFunction(function (selector) {
          return function (elem) {
            return Sizzle(selector, elem).length > 0;
          };
        }),
        "contains": markFunction(function (text) {
          text = text.replace(runescape, funescape);
          return function (elem) {
            return (elem.textContent || elem.innerText || getText(elem)).indexOf(text) > -1;
          };
        }),
        // "Whether an element is represented by a :lang() selector
        // is based solely on the element's language value
        // being equal to the identifier C,
        // or beginning with the identifier C immediately followed by "-".
        // The matching of C against the element's language value is performed case-insensitively.
        // The identifier C does not have to be a valid language name."
        // http://www.w3.org/TR/selectors/#lang-pseudo
        "lang": markFunction(function (lang) {
          // lang value must be a valid identifier
          if (!ridentifier.test(lang || "")) {
            Sizzle.error("unsupported lang: " + lang);
          }

          lang = lang.replace(runescape, funescape).toLowerCase();
          return function (elem) {
            var elemLang;

            do {
              if (elemLang = documentIsHTML ? elem.lang : elem.getAttribute("xml:lang") || elem.getAttribute("lang")) {
                elemLang = elemLang.toLowerCase();
                return elemLang === lang || elemLang.indexOf(lang + "-") === 0;
              }
            } while ((elem = elem.parentNode) && elem.nodeType === 1);

            return false;
          };
        }),
        // Miscellaneous
        "target": function (elem) {
          var hash = window.location && window.location.hash;
          return hash && hash.slice(1) === elem.id;
        },
        "root": function (elem) {
          return elem === docElem;
        },
        "focus": function (elem) {
          return elem === document.activeElement && (!document.hasFocus || document.hasFocus()) && !!(elem.type || elem.href || ~elem.tabIndex);
        },
        // Boolean properties
        "enabled": createDisabledPseudo(false),
        "disabled": createDisabledPseudo(true),
        "checked": function (elem) {
          // In CSS3, :checked should return both checked and selected elements
          // http://www.w3.org/TR/2011/REC-css3-selectors-20110929/#checked
          var nodeName = elem.nodeName.toLowerCase();
          return nodeName === "input" && !!elem.checked || nodeName === "option" && !!elem.selected;
        },
        "selected": function (elem) {
          // Accessing this property makes selected-by-default
          // options in Safari work properly
          if (elem.parentNode) {
            elem.parentNode.selectedIndex;
          }

          return elem.selected === true;
        },
        // Contents
        "empty": function (elem) {
          // http://www.w3.org/TR/selectors/#empty-pseudo
          // :empty is negated by element (1) or content nodes (text: 3; cdata: 4; entity ref: 5),
          //   but not by others (comment: 8; processing instruction: 7; etc.)
          // nodeType < 6 works because attributes (2) do not appear as children
          for (elem = elem.firstChild; elem; elem = elem.nextSibling) {
            if (elem.nodeType < 6) {
              return false;
            }
          }

          return true;
        },
        "parent": function (elem) {
          return !Expr.pseudos["empty"](elem);
        },
        // Element/input types
        "header": function (elem) {
          return rheader.test(elem.nodeName);
        },
        "input": function (elem) {
          return rinputs.test(elem.nodeName);
        },
        "button": function (elem) {
          var name = elem.nodeName.toLowerCase();
          return name === "input" && elem.type === "button" || name === "button";
        },
        "text": function (elem) {
          var attr;
          return elem.nodeName.toLowerCase() === "input" && elem.type === "text" && ( // Support: IE<8
          // New HTML5 attribute values (e.g., "search") appear with elem.type === "text"
          (attr = elem.getAttribute("type")) == null || attr.toLowerCase() === "text");
        },
        // Position-in-collection
        "first": createPositionalPseudo(function () {
          return [0];
        }),
        "last": createPositionalPseudo(function (matchIndexes, length) {
          return [length - 1];
        }),
        "eq": createPositionalPseudo(function (matchIndexes, length, argument) {
          return [argument < 0 ? argument + length : argument];
        }),
        "even": createPositionalPseudo(function (matchIndexes, length) {
          var i = 0;

          for (; i < length; i += 2) {
            matchIndexes.push(i);
          }

          return matchIndexes;
        }),
        "odd": createPositionalPseudo(function (matchIndexes, length) {
          var i = 1;

          for (; i < length; i += 2) {
            matchIndexes.push(i);
          }

          return matchIndexes;
        }),
        "lt": createPositionalPseudo(function (matchIndexes, length, argument) {
          var i = argument < 0 ? argument + length : argument;

          for (; --i >= 0;) {
            matchIndexes.push(i);
          }

          return matchIndexes;
        }),
        "gt": createPositionalPseudo(function (matchIndexes, length, argument) {
          var i = argument < 0 ? argument + length : argument;

          for (; ++i < length;) {
            matchIndexes.push(i);
          }

          return matchIndexes;
        })
      }
    };
    Expr.pseudos["nth"] = Expr.pseudos["eq"]; // Add button/input type pseudos

    for (i in {
      radio: true,
      checkbox: true,
      file: true,
      password: true,
      image: true
    }) {
      Expr.pseudos[i] = createInputPseudo(i);
    }

    for (i in {
      submit: true,
      reset: true
    }) {
      Expr.pseudos[i] = createButtonPseudo(i);
    } // Easy API for creating new setFilters


    function setFilters() {}

    setFilters.prototype = Expr.filters = Expr.pseudos;
    Expr.setFilters = new setFilters();

    tokenize = Sizzle.tokenize = function (selector, parseOnly) {
      var matched,
          match,
          tokens,
          type,
          soFar,
          groups,
          preFilters,
          cached = tokenCache[selector + " "];

      if (cached) {
        return parseOnly ? 0 : cached.slice(0);
      }

      soFar = selector;
      groups = [];
      preFilters = Expr.preFilter;

      while (soFar) {
        // Comma and first run
        if (!matched || (match = rcomma.exec(soFar))) {
          if (match) {
            // Don't consume trailing commas as valid
            soFar = soFar.slice(match[0].length) || soFar;
          }

          groups.push(tokens = []);
        }

        matched = false; // Combinators

        if (match = rcombinators.exec(soFar)) {
          matched = match.shift();
          tokens.push({
            value: matched,
            // Cast descendant combinators to space
            type: match[0].replace(rtrim, " ")
          });
          soFar = soFar.slice(matched.length);
        } // Filters


        for (type in Expr.filter) {
          if ((match = matchExpr[type].exec(soFar)) && (!preFilters[type] || (match = preFilters[type](match)))) {
            matched = match.shift();
            tokens.push({
              value: matched,
              type: type,
              matches: match
            });
            soFar = soFar.slice(matched.length);
          }
        }

        if (!matched) {
          break;
        }
      } // Return the length of the invalid excess
      // if we're just parsing
      // Otherwise, throw an error or return tokens


      return parseOnly ? soFar.length : soFar ? Sizzle.error(selector) : // Cache the tokens
      tokenCache(selector, groups).slice(0);
    };

    function toSelector(tokens) {
      var i = 0,
          len = tokens.length,
          selector = "";

      for (; i < len; i++) {
        selector += tokens[i].value;
      }

      return selector;
    }

    function addCombinator(matcher, combinator, base) {
      var dir = combinator.dir,
          skip = combinator.next,
          key = skip || dir,
          checkNonElements = base && key === "parentNode",
          doneName = done++;
      return combinator.first ? // Check against closest ancestor/preceding element
      function (elem, context, xml) {
        while (elem = elem[dir]) {
          if (elem.nodeType === 1 || checkNonElements) {
            return matcher(elem, context, xml);
          }
        }

        return false;
      } : // Check against all ancestor/preceding elements
      function (elem, context, xml) {
        var oldCache,
            uniqueCache,
            outerCache,
            newCache = [dirruns, doneName]; // We can't set arbitrary data on XML nodes, so they don't benefit from combinator caching

        if (xml) {
          while (elem = elem[dir]) {
            if (elem.nodeType === 1 || checkNonElements) {
              if (matcher(elem, context, xml)) {
                return true;
              }
            }
          }
        } else {
          while (elem = elem[dir]) {
            if (elem.nodeType === 1 || checkNonElements) {
              outerCache = elem[expando] || (elem[expando] = {}); // Support: IE <9 only
              // Defend against cloned attroperties (jQuery gh-1709)

              uniqueCache = outerCache[elem.uniqueID] || (outerCache[elem.uniqueID] = {});

              if (skip && skip === elem.nodeName.toLowerCase()) {
                elem = elem[dir] || elem;
              } else if ((oldCache = uniqueCache[key]) && oldCache[0] === dirruns && oldCache[1] === doneName) {
                // Assign to newCache so results back-propagate to previous elements
                return newCache[2] = oldCache[2];
              } else {
                // Reuse newcache so results back-propagate to previous elements
                uniqueCache[key] = newCache; // A match means we're done; a fail means we have to keep checking

                if (newCache[2] = matcher(elem, context, xml)) {
                  return true;
                }
              }
            }
          }
        }

        return false;
      };
    }

    function elementMatcher(matchers) {
      return matchers.length > 1 ? function (elem, context, xml) {
        var i = matchers.length;

        while (i--) {
          if (!matchers[i](elem, context, xml)) {
            return false;
          }
        }

        return true;
      } : matchers[0];
    }

    function multipleContexts(selector, contexts, results) {
      var i = 0,
          len = contexts.length;

      for (; i < len; i++) {
        Sizzle(selector, contexts[i], results);
      }

      return results;
    }

    function condense(unmatched, map, filter, context, xml) {
      var elem,
          newUnmatched = [],
          i = 0,
          len = unmatched.length,
          mapped = map != null;

      for (; i < len; i++) {
        if (elem = unmatched[i]) {
          if (!filter || filter(elem, context, xml)) {
            newUnmatched.push(elem);

            if (mapped) {
              map.push(i);
            }
          }
        }
      }

      return newUnmatched;
    }

    function setMatcher(preFilter, selector, matcher, postFilter, postFinder, postSelector) {
      if (postFilter && !postFilter[expando]) {
        postFilter = setMatcher(postFilter);
      }

      if (postFinder && !postFinder[expando]) {
        postFinder = setMatcher(postFinder, postSelector);
      }

      return markFunction(function (seed, results, context, xml) {
        var temp,
            i,
            elem,
            preMap = [],
            postMap = [],
            preexisting = results.length,
            // Get initial elements from seed or context
        elems = seed || multipleContexts(selector || "*", context.nodeType ? [context] : context, []),
            // Prefilter to get matcher input, preserving a map for seed-results synchronization
        matcherIn = preFilter && (seed || !selector) ? condense(elems, preMap, preFilter, context, xml) : elems,
            matcherOut = matcher ? // If we have a postFinder, or filtered seed, or non-seed postFilter or preexisting results,
        postFinder || (seed ? preFilter : preexisting || postFilter) ? // ...intermediate processing is necessary
        [] : // ...otherwise use results directly
        results : matcherIn; // Find primary matches

        if (matcher) {
          matcher(matcherIn, matcherOut, context, xml);
        } // Apply postFilter


        if (postFilter) {
          temp = condense(matcherOut, postMap);
          postFilter(temp, [], context, xml); // Un-match failing elements by moving them back to matcherIn

          i = temp.length;

          while (i--) {
            if (elem = temp[i]) {
              matcherOut[postMap[i]] = !(matcherIn[postMap[i]] = elem);
            }
          }
        }

        if (seed) {
          if (postFinder || preFilter) {
            if (postFinder) {
              // Get the final matcherOut by condensing this intermediate into postFinder contexts
              temp = [];
              i = matcherOut.length;

              while (i--) {
                if (elem = matcherOut[i]) {
                  // Restore matcherIn since elem is not yet a final match
                  temp.push(matcherIn[i] = elem);
                }
              }

              postFinder(null, matcherOut = [], temp, xml);
            } // Move matched elements from seed to results to keep them synchronized


            i = matcherOut.length;

            while (i--) {
              if ((elem = matcherOut[i]) && (temp = postFinder ? indexOf(seed, elem) : preMap[i]) > -1) {
                seed[temp] = !(results[temp] = elem);
              }
            }
          } // Add elements to results, through postFinder if defined

        } else {
          matcherOut = condense(matcherOut === results ? matcherOut.splice(preexisting, matcherOut.length) : matcherOut);

          if (postFinder) {
            postFinder(null, results, matcherOut, xml);
          } else {
            push.apply(results, matcherOut);
          }
        }
      });
    }

    function matcherFromTokens(tokens) {
      var checkContext,
          matcher,
          j,
          len = tokens.length,
          leadingRelative = Expr.relative[tokens[0].type],
          implicitRelative = leadingRelative || Expr.relative[" "],
          i = leadingRelative ? 1 : 0,
          // The foundational matcher ensures that elements are reachable from top-level context(s)
      matchContext = addCombinator(function (elem) {
        return elem === checkContext;
      }, implicitRelative, true),
          matchAnyContext = addCombinator(function (elem) {
        return indexOf(checkContext, elem) > -1;
      }, implicitRelative, true),
          matchers = [function (elem, context, xml) {
        var ret = !leadingRelative && (xml || context !== outermostContext) || ((checkContext = context).nodeType ? matchContext(elem, context, xml) : matchAnyContext(elem, context, xml)); // Avoid hanging onto element (issue #299)

        checkContext = null;
        return ret;
      }];

      for (; i < len; i++) {
        if (matcher = Expr.relative[tokens[i].type]) {
          matchers = [addCombinator(elementMatcher(matchers), matcher)];
        } else {
          matcher = Expr.filter[tokens[i].type].apply(null, tokens[i].matches); // Return special upon seeing a positional matcher

          if (matcher[expando]) {
            // Find the next relative operator (if any) for proper handling
            j = ++i;

            for (; j < len; j++) {
              if (Expr.relative[tokens[j].type]) {
                break;
              }
            }

            return setMatcher(i > 1 && elementMatcher(matchers), i > 1 && toSelector( // If the preceding token was a descendant combinator, insert an implicit any-element `*`
            tokens.slice(0, i - 1).concat({
              value: tokens[i - 2].type === " " ? "*" : ""
            })).replace(rtrim, "$1"), matcher, i < j && matcherFromTokens(tokens.slice(i, j)), j < len && matcherFromTokens(tokens = tokens.slice(j)), j < len && toSelector(tokens));
          }

          matchers.push(matcher);
        }
      }

      return elementMatcher(matchers);
    }

    function matcherFromGroupMatchers(elementMatchers, setMatchers) {
      var bySet = setMatchers.length > 0,
          byElement = elementMatchers.length > 0,
          superMatcher = function (seed, context, xml, results, outermost) {
        var elem,
            j,
            matcher,
            matchedCount = 0,
            i = "0",
            unmatched = seed && [],
            setMatched = [],
            contextBackup = outermostContext,
            // We must always have either seed elements or outermost context
        elems = seed || byElement && Expr.find["TAG"]("*", outermost),
            // Use integer dirruns iff this is the outermost matcher
        dirrunsUnique = dirruns += contextBackup == null ? 1 : Math.random() || 0.1,
            len = elems.length;

        if (outermost) {
          outermostContext = context === document || context || outermost;
        } // Add elements passing elementMatchers directly to results
        // Support: IE<9, Safari
        // Tolerate NodeList properties (IE: "length"; Safari: <number>) matching elements by id


        for (; i !== len && (elem = elems[i]) != null; i++) {
          if (byElement && elem) {
            j = 0;

            if (!context && elem.ownerDocument !== document) {
              setDocument(elem);
              xml = !documentIsHTML;
            }

            while (matcher = elementMatchers[j++]) {
              if (matcher(elem, context || document, xml)) {
                results.push(elem);
                break;
              }
            }

            if (outermost) {
              dirruns = dirrunsUnique;
            }
          } // Track unmatched elements for set filters


          if (bySet) {
            // They will have gone through all possible matchers
            if (elem = !matcher && elem) {
              matchedCount--;
            } // Lengthen the array for every element, matched or not


            if (seed) {
              unmatched.push(elem);
            }
          }
        } // `i` is now the count of elements visited above, and adding it to `matchedCount`
        // makes the latter nonnegative.


        matchedCount += i; // Apply set filters to unmatched elements
        // NOTE: This can be skipped if there are no unmatched elements (i.e., `matchedCount`
        // equals `i`), unless we didn't visit _any_ elements in the above loop because we have
        // no element matchers and no seed.
        // Incrementing an initially-string "0" `i` allows `i` to remain a string only in that
        // case, which will result in a "00" `matchedCount` that differs from `i` but is also
        // numerically zero.

        if (bySet && i !== matchedCount) {
          j = 0;

          while (matcher = setMatchers[j++]) {
            matcher(unmatched, setMatched, context, xml);
          }

          if (seed) {
            // Reintegrate element matches to eliminate the need for sorting
            if (matchedCount > 0) {
              while (i--) {
                if (!(unmatched[i] || setMatched[i])) {
                  setMatched[i] = pop.call(results);
                }
              }
            } // Discard index placeholder values to get only actual matches


            setMatched = condense(setMatched);
          } // Add matches to results


          push.apply(results, setMatched); // Seedless set matches succeeding multiple successful matchers stipulate sorting

          if (outermost && !seed && setMatched.length > 0 && matchedCount + setMatchers.length > 1) {
            Sizzle.uniqueSort(results);
          }
        } // Override manipulation of globals by nested matchers


        if (outermost) {
          dirruns = dirrunsUnique;
          outermostContext = contextBackup;
        }

        return unmatched;
      };

      return bySet ? markFunction(superMatcher) : superMatcher;
    }

    compile = Sizzle.compile = function (selector, match
    /* Internal Use Only */
    ) {
      var i,
          setMatchers = [],
          elementMatchers = [],
          cached = compilerCache[selector + " "];

      if (!cached) {
        // Generate a function of recursive functions that can be used to check each element
        if (!match) {
          match = tokenize(selector);
        }

        i = match.length;

        while (i--) {
          cached = matcherFromTokens(match[i]);

          if (cached[expando]) {
            setMatchers.push(cached);
          } else {
            elementMatchers.push(cached);
          }
        } // Cache the compiled function


        cached = compilerCache(selector, matcherFromGroupMatchers(elementMatchers, setMatchers)); // Save selector and tokenization

        cached.selector = selector;
      }

      return cached;
    };
    /**
     * A low-level selection function that works with Sizzle's compiled
     *  selector functions
     * @param {String|Function} selector A selector or a pre-compiled
     *  selector function built with Sizzle.compile
     * @param {Element} context
     * @param {Array} [results]
     * @param {Array} [seed] A set of elements to match against
     */


    select = Sizzle.select = function (selector, context, results, seed) {
      var i,
          tokens,
          token,
          type,
          find,
          compiled = typeof selector === "function" && selector,
          match = !seed && tokenize(selector = compiled.selector || selector);
      results = results || []; // Try to minimize operations if there is only one selector in the list and no seed
      // (the latter of which guarantees us context)

      if (match.length === 1) {
        // Reduce context if the leading compound selector is an ID
        tokens = match[0] = match[0].slice(0);

        if (tokens.length > 2 && (token = tokens[0]).type === "ID" && context.nodeType === 9 && documentIsHTML && Expr.relative[tokens[1].type]) {
          context = (Expr.find["ID"](token.matches[0].replace(runescape, funescape), context) || [])[0];

          if (!context) {
            return results; // Precompiled matchers will still verify ancestry, so step up a level
          } else if (compiled) {
            context = context.parentNode;
          }

          selector = selector.slice(tokens.shift().value.length);
        } // Fetch a seed set for right-to-left matching


        i = matchExpr["needsContext"].test(selector) ? 0 : tokens.length;

        while (i--) {
          token = tokens[i]; // Abort if we hit a combinator

          if (Expr.relative[type = token.type]) {
            break;
          }

          if (find = Expr.find[type]) {
            // Search, expanding context for leading sibling combinators
            if (seed = find(token.matches[0].replace(runescape, funescape), rsibling.test(tokens[0].type) && testContext(context.parentNode) || context)) {
              // If seed is empty or no tokens remain, we can return early
              tokens.splice(i, 1);
              selector = seed.length && toSelector(tokens);

              if (!selector) {
                push.apply(results, seed);
                return results;
              }

              break;
            }
          }
        }
      } // Compile and execute a filtering function if one is not provided
      // Provide `match` to avoid retokenization if we modified the selector above


      (compiled || compile(selector, match))(seed, context, !documentIsHTML, results, !context || rsibling.test(selector) && testContext(context.parentNode) || context);
      return results;
    }; // One-time assignments
    // Sort stability


    support.sortStable = expando.split("").sort(sortOrder).join("") === expando; // Support: Chrome 14-35+
    // Always assume duplicates if they aren't passed to the comparison function

    support.detectDuplicates = !!hasDuplicate; // Initialize against the default document

    setDocument(); // Support: Webkit<537.32 - Safari 6.0.3/Chrome 25 (fixed in Chrome 27)
    // Detached nodes confoundingly follow *each other*

    support.sortDetached = assert(function (el) {
      // Should return 1, but returns 4 (following)
      return el.compareDocumentPosition(document.createElement("fieldset")) & 1;
    }); // Support: IE<8
    // Prevent attribute/property "interpolation"
    // https://msdn.microsoft.com/en-us/library/ms536429%28VS.85%29.aspx

    if (!assert(function (el) {
      el.innerHTML = "<a href='#'></a>";
      return el.firstChild.getAttribute("href") === "#";
    })) {
      addHandle("type|href|height|width", function (elem, name, isXML) {
        if (!isXML) {
          return elem.getAttribute(name, name.toLowerCase() === "type" ? 1 : 2);
        }
      });
    } // Support: IE<9
    // Use defaultValue in place of getAttribute("value")


    if (!support.attributes || !assert(function (el) {
      el.innerHTML = "<input/>";
      el.firstChild.setAttribute("value", "");
      return el.firstChild.getAttribute("value") === "";
    })) {
      addHandle("value", function (elem, name, isXML) {
        if (!isXML && elem.nodeName.toLowerCase() === "input") {
          return elem.defaultValue;
        }
      });
    } // Support: IE<9
    // Use getAttributeNode to fetch booleans when getAttribute lies


    if (!assert(function (el) {
      return el.getAttribute("disabled") == null;
    })) {
      addHandle(booleans, function (elem, name, isXML) {
        var val;

        if (!isXML) {
          return elem[name] === true ? name.toLowerCase() : (val = elem.getAttributeNode(name)) && val.specified ? val.value : null;
        }
      });
    }

    return Sizzle;
  }(window);

  jQuery.find = Sizzle;
  jQuery.expr = Sizzle.selectors; // Deprecated

  jQuery.expr[":"] = jQuery.expr.pseudos;
  jQuery.uniqueSort = jQuery.unique = Sizzle.uniqueSort;
  jQuery.text = Sizzle.getText;
  jQuery.isXMLDoc = Sizzle.isXML;
  jQuery.contains = Sizzle.contains;
  jQuery.escapeSelector = Sizzle.escape;

  var dir = function (elem, dir, until) {
    var matched = [],
        truncate = until !== undefined;

    while ((elem = elem[dir]) && elem.nodeType !== 9) {
      if (elem.nodeType === 1) {
        if (truncate && jQuery(elem).is(until)) {
          break;
        }

        matched.push(elem);
      }
    }

    return matched;
  };

  var siblings = function (n, elem) {
    var matched = [];

    for (; n; n = n.nextSibling) {
      if (n.nodeType === 1 && n !== elem) {
        matched.push(n);
      }
    }

    return matched;
  };

  var rneedsContext = jQuery.expr.match.needsContext;

  function nodeName(elem, name) {
    return elem.nodeName && elem.nodeName.toLowerCase() === name.toLowerCase();
  }

  ;
  var rsingleTag = /^<([a-z][^\/\0>:\x20\t\r\n\f]*)[\x20\t\r\n\f]*\/?>(?:<\/\1>|)$/i; // Implement the identical functionality for filter and not

  function winnow(elements, qualifier, not) {
    if (isFunction(qualifier)) {
      return jQuery.grep(elements, function (elem, i) {
        return !!qualifier.call(elem, i, elem) !== not;
      });
    } // Single element


    if (qualifier.nodeType) {
      return jQuery.grep(elements, function (elem) {
        return elem === qualifier !== not;
      });
    } // Arraylike of elements (jQuery, arguments, Array)


    if (typeof qualifier !== "string") {
      return jQuery.grep(elements, function (elem) {
        return indexOf.call(qualifier, elem) > -1 !== not;
      });
    } // Filtered directly for both simple and complex selectors


    return jQuery.filter(qualifier, elements, not);
  }

  jQuery.filter = function (expr, elems, not) {
    var elem = elems[0];

    if (not) {
      expr = ":not(" + expr + ")";
    }

    if (elems.length === 1 && elem.nodeType === 1) {
      return jQuery.find.matchesSelector(elem, expr) ? [elem] : [];
    }

    return jQuery.find.matches(expr, jQuery.grep(elems, function (elem) {
      return elem.nodeType === 1;
    }));
  };

  jQuery.fn.extend({
    find: function (selector) {
      var i,
          ret,
          len = this.length,
          self = this;

      if (typeof selector !== "string") {
        return this.pushStack(jQuery(selector).filter(function () {
          for (i = 0; i < len; i++) {
            if (jQuery.contains(self[i], this)) {
              return true;
            }
          }
        }));
      }

      ret = this.pushStack([]);

      for (i = 0; i < len; i++) {
        jQuery.find(selector, self[i], ret);
      }

      return len > 1 ? jQuery.uniqueSort(ret) : ret;
    },
    filter: function (selector) {
      return this.pushStack(winnow(this, selector || [], false));
    },
    not: function (selector) {
      return this.pushStack(winnow(this, selector || [], true));
    },
    is: function (selector) {
      return !!winnow(this, // If this is a positional/relative selector, check membership in the returned set
      // so $("p:first").is("p:last") won't return true for a doc with two "p".
      typeof selector === "string" && rneedsContext.test(selector) ? jQuery(selector) : selector || [], false).length;
    }
  }); // Initialize a jQuery object
  // A central reference to the root jQuery(document)

  var rootjQuery,
      // A simple way to check for HTML strings
  // Prioritize #id over <tag> to avoid XSS via location.hash (#9521)
  // Strict HTML recognition (#11290: must start with <)
  // Shortcut simple #id case for speed
  rquickExpr = /^(?:\s*(<[\w\W]+>)[^>]*|#([\w-]+))$/,
      init = jQuery.fn.init = function (selector, context, root) {
    var match, elem; // HANDLE: $(""), $(null), $(undefined), $(false)

    if (!selector) {
      return this;
    } // Method init() accepts an alternate rootjQuery
    // so migrate can support jQuery.sub (gh-2101)


    root = root || rootjQuery; // Handle HTML strings

    if (typeof selector === "string") {
      if (selector[0] === "<" && selector[selector.length - 1] === ">" && selector.length >= 3) {
        // Assume that strings that start and end with <> are HTML and skip the regex check
        match = [null, selector, null];
      } else {
        match = rquickExpr.exec(selector);
      } // Match html or make sure no context is specified for #id


      if (match && (match[1] || !context)) {
        // HANDLE: $(html) -> $(array)
        if (match[1]) {
          context = context instanceof jQuery ? context[0] : context; // Option to run scripts is true for back-compat
          // Intentionally let the error be thrown if parseHTML is not present

          jQuery.merge(this, jQuery.parseHTML(match[1], context && context.nodeType ? context.ownerDocument || context : document, true)); // HANDLE: $(html, props)

          if (rsingleTag.test(match[1]) && jQuery.isPlainObject(context)) {
            for (match in context) {
              // Properties of context are called as methods if possible
              if (isFunction(this[match])) {
                this[match](context[match]); // ...and otherwise set as attributes
              } else {
                this.attr(match, context[match]);
              }
            }
          }

          return this; // HANDLE: $(#id)
        } else {
          elem = document.getElementById(match[2]);

          if (elem) {
            // Inject the element directly into the jQuery object
            this[0] = elem;
            this.length = 1;
          }

          return this;
        } // HANDLE: $(expr, $(...))

      } else if (!context || context.jquery) {
        return (context || root).find(selector); // HANDLE: $(expr, context)
        // (which is just equivalent to: $(context).find(expr)
      } else {
        return this.constructor(context).find(selector);
      } // HANDLE: $(DOMElement)

    } else if (selector.nodeType) {
      this[0] = selector;
      this.length = 1;
      return this; // HANDLE: $(function)
      // Shortcut for document ready
    } else if (isFunction(selector)) {
      return root.ready !== undefined ? root.ready(selector) : // Execute immediately if ready is not present
      selector(jQuery);
    }

    return jQuery.makeArray(selector, this);
  }; // Give the init function the jQuery prototype for later instantiation


  init.prototype = jQuery.fn; // Initialize central reference

  rootjQuery = jQuery(document);
  var rparentsprev = /^(?:parents|prev(?:Until|All))/,
      // Methods guaranteed to produce a unique set when starting from a unique set
  guaranteedUnique = {
    children: true,
    contents: true,
    next: true,
    prev: true
  };
  jQuery.fn.extend({
    has: function (target) {
      var targets = jQuery(target, this),
          l = targets.length;
      return this.filter(function () {
        var i = 0;

        for (; i < l; i++) {
          if (jQuery.contains(this, targets[i])) {
            return true;
          }
        }
      });
    },
    closest: function (selectors, context) {
      var cur,
          i = 0,
          l = this.length,
          matched = [],
          targets = typeof selectors !== "string" && jQuery(selectors); // Positional selectors never match, since there's no _selection_ context

      if (!rneedsContext.test(selectors)) {
        for (; i < l; i++) {
          for (cur = this[i]; cur && cur !== context; cur = cur.parentNode) {
            // Always skip document fragments
            if (cur.nodeType < 11 && (targets ? targets.index(cur) > -1 : // Don't pass non-elements to Sizzle
            cur.nodeType === 1 && jQuery.find.matchesSelector(cur, selectors))) {
              matched.push(cur);
              break;
            }
          }
        }
      }

      return this.pushStack(matched.length > 1 ? jQuery.uniqueSort(matched) : matched);
    },
    // Determine the position of an element within the set
    index: function (elem) {
      // No argument, return index in parent
      if (!elem) {
        return this[0] && this[0].parentNode ? this.first().prevAll().length : -1;
      } // Index in selector


      if (typeof elem === "string") {
        return indexOf.call(jQuery(elem), this[0]);
      } // Locate the position of the desired element


      return indexOf.call(this, // If it receives a jQuery object, the first element is used
      elem.jquery ? elem[0] : elem);
    },
    add: function (selector, context) {
      return this.pushStack(jQuery.uniqueSort(jQuery.merge(this.get(), jQuery(selector, context))));
    },
    addBack: function (selector) {
      return this.add(selector == null ? this.prevObject : this.prevObject.filter(selector));
    }
  });

  function sibling(cur, dir) {
    while ((cur = cur[dir]) && cur.nodeType !== 1) {}

    return cur;
  }

  jQuery.each({
    parent: function (elem) {
      var parent = elem.parentNode;
      return parent && parent.nodeType !== 11 ? parent : null;
    },
    parents: function (elem) {
      return dir(elem, "parentNode");
    },
    parentsUntil: function (elem, i, until) {
      return dir(elem, "parentNode", until);
    },
    next: function (elem) {
      return sibling(elem, "nextSibling");
    },
    prev: function (elem) {
      return sibling(elem, "previousSibling");
    },
    nextAll: function (elem) {
      return dir(elem, "nextSibling");
    },
    prevAll: function (elem) {
      return dir(elem, "previousSibling");
    },
    nextUntil: function (elem, i, until) {
      return dir(elem, "nextSibling", until);
    },
    prevUntil: function (elem, i, until) {
      return dir(elem, "previousSibling", until);
    },
    siblings: function (elem) {
      return siblings((elem.parentNode || {}).firstChild, elem);
    },
    children: function (elem) {
      return siblings(elem.firstChild);
    },
    contents: function (elem) {
      if (nodeName(elem, "iframe")) {
        return elem.contentDocument;
      } // Support: IE 9 - 11 only, iOS 7 only, Android Browser <=4.3 only
      // Treat the template element as a regular one in browsers that
      // don't support it.


      if (nodeName(elem, "template")) {
        elem = elem.content || elem;
      }

      return jQuery.merge([], elem.childNodes);
    }
  }, function (name, fn) {
    jQuery.fn[name] = function (until, selector) {
      var matched = jQuery.map(this, fn, until);

      if (name.slice(-5) !== "Until") {
        selector = until;
      }

      if (selector && typeof selector === "string") {
        matched = jQuery.filter(selector, matched);
      }

      if (this.length > 1) {
        // Remove duplicates
        if (!guaranteedUnique[name]) {
          jQuery.uniqueSort(matched);
        } // Reverse order for parents* and prev-derivatives


        if (rparentsprev.test(name)) {
          matched.reverse();
        }
      }

      return this.pushStack(matched);
    };
  });
  var rnothtmlwhite = /[^\x20\t\r\n\f]+/g; // Convert String-formatted options into Object-formatted ones

  function createOptions(options) {
    var object = {};
    jQuery.each(options.match(rnothtmlwhite) || [], function (_, flag) {
      object[flag] = true;
    });
    return object;
  }
  /*
   * Create a callback list using the following parameters:
   *
   *	options: an optional list of space-separated options that will change how
   *			the callback list behaves or a more traditional option object
   *
   * By default a callback list will act like an event callback list and can be
   * "fired" multiple times.
   *
   * Possible options:
   *
   *	once:			will ensure the callback list can only be fired once (like a Deferred)
   *
   *	memory:			will keep track of previous values and will call any callback added
   *					after the list has been fired right away with the latest "memorized"
   *					values (like a Deferred)
   *
   *	unique:			will ensure a callback can only be added once (no duplicate in the list)
   *
   *	stopOnFalse:	interrupt callings when a callback returns false
   *
   */


  jQuery.Callbacks = function (options) {
    // Convert options from String-formatted to Object-formatted if needed
    // (we check in cache first)
    options = typeof options === "string" ? createOptions(options) : jQuery.extend({}, options);

    var // Flag to know if list is currently firing
    firing,
        // Last fire value for non-forgettable lists
    memory,
        // Flag to know if list was already fired
    fired,
        // Flag to prevent firing
    locked,
        // Actual callback list
    list = [],
        // Queue of execution data for repeatable lists
    queue = [],
        // Index of currently firing callback (modified by add/remove as needed)
    firingIndex = -1,
        // Fire callbacks
    fire = function () {
      // Enforce single-firing
      locked = locked || options.once; // Execute callbacks for all pending executions,
      // respecting firingIndex overrides and runtime changes

      fired = firing = true;

      for (; queue.length; firingIndex = -1) {
        memory = queue.shift();

        while (++firingIndex < list.length) {
          // Run callback and check for early termination
          if (list[firingIndex].apply(memory[0], memory[1]) === false && options.stopOnFalse) {
            // Jump to end and forget the data so .add doesn't re-fire
            firingIndex = list.length;
            memory = false;
          }
        }
      } // Forget the data if we're done with it


      if (!options.memory) {
        memory = false;
      }

      firing = false; // Clean up if we're done firing for good

      if (locked) {
        // Keep an empty list if we have data for future add calls
        if (memory) {
          list = []; // Otherwise, this object is spent
        } else {
          list = "";
        }
      }
    },
        // Actual Callbacks object
    self = {
      // Add a callback or a collection of callbacks to the list
      add: function () {
        if (list) {
          // If we have memory from a past run, we should fire after adding
          if (memory && !firing) {
            firingIndex = list.length - 1;
            queue.push(memory);
          }

          (function add(args) {
            jQuery.each(args, function (_, arg) {
              if (isFunction(arg)) {
                if (!options.unique || !self.has(arg)) {
                  list.push(arg);
                }
              } else if (arg && arg.length && toType(arg) !== "string") {
                // Inspect recursively
                add(arg);
              }
            });
          })(arguments);

          if (memory && !firing) {
            fire();
          }
        }

        return this;
      },
      // Remove a callback from the list
      remove: function () {
        jQuery.each(arguments, function (_, arg) {
          var index;

          while ((index = jQuery.inArray(arg, list, index)) > -1) {
            list.splice(index, 1); // Handle firing indexes

            if (index <= firingIndex) {
              firingIndex--;
            }
          }
        });
        return this;
      },
      // Check if a given callback is in the list.
      // If no argument is given, return whether or not list has callbacks attached.
      has: function (fn) {
        return fn ? jQuery.inArray(fn, list) > -1 : list.length > 0;
      },
      // Remove all callbacks from the list
      empty: function () {
        if (list) {
          list = [];
        }

        return this;
      },
      // Disable .fire and .add
      // Abort any current/pending executions
      // Clear all callbacks and values
      disable: function () {
        locked = queue = [];
        list = memory = "";
        return this;
      },
      disabled: function () {
        return !list;
      },
      // Disable .fire
      // Also disable .add unless we have memory (since it would have no effect)
      // Abort any pending executions
      lock: function () {
        locked = queue = [];

        if (!memory && !firing) {
          list = memory = "";
        }

        return this;
      },
      locked: function () {
        return !!locked;
      },
      // Call all callbacks with the given context and arguments
      fireWith: function (context, args) {
        if (!locked) {
          args = args || [];
          args = [context, args.slice ? args.slice() : args];
          queue.push(args);

          if (!firing) {
            fire();
          }
        }

        return this;
      },
      // Call all the callbacks with the given arguments
      fire: function () {
        self.fireWith(this, arguments);
        return this;
      },
      // To know if the callbacks have already been called at least once
      fired: function () {
        return !!fired;
      }
    };

    return self;
  };

  function Identity(v) {
    return v;
  }

  function Thrower(ex) {
    throw ex;
  }

  function adoptValue(value, resolve, reject, noValue) {
    var method;

    try {
      // Check for promise aspect first to privilege synchronous behavior
      if (value && isFunction(method = value.promise)) {
        method.call(value).done(resolve).fail(reject); // Other thenables
      } else if (value && isFunction(method = value.then)) {
        method.call(value, resolve, reject); // Other non-thenables
      } else {
        // Control `resolve` arguments by letting Array#slice cast boolean `noValue` to integer:
        // * false: [ value ].slice( 0 ) => resolve( value )
        // * true: [ value ].slice( 1 ) => resolve()
        resolve.apply(undefined, [value].slice(noValue));
      } // For Promises/A+, convert exceptions into rejections
      // Since jQuery.when doesn't unwrap thenables, we can skip the extra checks appearing in
      // Deferred#then to conditionally suppress rejection.

    } catch (value) {
      // Support: Android 4.0 only
      // Strict mode functions invoked without .call/.apply get global-object context
      reject.apply(undefined, [value]);
    }
  }

  jQuery.extend({
    Deferred: function (func) {
      var tuples = [// action, add listener, callbacks,
      // ... .then handlers, argument index, [final state]
      ["notify", "progress", jQuery.Callbacks("memory"), jQuery.Callbacks("memory"), 2], ["resolve", "done", jQuery.Callbacks("once memory"), jQuery.Callbacks("once memory"), 0, "resolved"], ["reject", "fail", jQuery.Callbacks("once memory"), jQuery.Callbacks("once memory"), 1, "rejected"]],
          state = "pending",
          promise = {
        state: function () {
          return state;
        },
        always: function () {
          deferred.done(arguments).fail(arguments);
          return this;
        },
        "catch": function (fn) {
          return promise.then(null, fn);
        },
        // Keep pipe for back-compat
        pipe: function ()
        /* fnDone, fnFail, fnProgress */
        {
          var fns = arguments;
          return jQuery.Deferred(function (newDefer) {
            jQuery.each(tuples, function (i, tuple) {
              // Map tuples (progress, done, fail) to arguments (done, fail, progress)
              var fn = isFunction(fns[tuple[4]]) && fns[tuple[4]]; // deferred.progress(function() { bind to newDefer or newDefer.notify })
              // deferred.done(function() { bind to newDefer or newDefer.resolve })
              // deferred.fail(function() { bind to newDefer or newDefer.reject })

              deferred[tuple[1]](function () {
                var returned = fn && fn.apply(this, arguments);

                if (returned && isFunction(returned.promise)) {
                  returned.promise().progress(newDefer.notify).done(newDefer.resolve).fail(newDefer.reject);
                } else {
                  newDefer[tuple[0] + "With"](this, fn ? [returned] : arguments);
                }
              });
            });
            fns = null;
          }).promise();
        },
        then: function (onFulfilled, onRejected, onProgress) {
          var maxDepth = 0;

          function resolve(depth, deferred, handler, special) {
            return function () {
              var that = this,
                  args = arguments,
                  mightThrow = function () {
                var returned, then; // Support: Promises/A+ section 2.3.3.3.3
                // https://promisesaplus.com/#point-59
                // Ignore double-resolution attempts

                if (depth < maxDepth) {
                  return;
                }

                returned = handler.apply(that, args); // Support: Promises/A+ section 2.3.1
                // https://promisesaplus.com/#point-48

                if (returned === deferred.promise()) {
                  throw new TypeError("Thenable self-resolution");
                } // Support: Promises/A+ sections 2.3.3.1, 3.5
                // https://promisesaplus.com/#point-54
                // https://promisesaplus.com/#point-75
                // Retrieve `then` only once


                then = returned && ( // Support: Promises/A+ section 2.3.4
                // https://promisesaplus.com/#point-64
                // Only check objects and functions for thenability
                typeof returned === "object" || typeof returned === "function") && returned.then; // Handle a returned thenable

                if (isFunction(then)) {
                  // Special processors (notify) just wait for resolution
                  if (special) {
                    then.call(returned, resolve(maxDepth, deferred, Identity, special), resolve(maxDepth, deferred, Thrower, special)); // Normal processors (resolve) also hook into progress
                  } else {
                    // ...and disregard older resolution values
                    maxDepth++;
                    then.call(returned, resolve(maxDepth, deferred, Identity, special), resolve(maxDepth, deferred, Thrower, special), resolve(maxDepth, deferred, Identity, deferred.notifyWith));
                  } // Handle all other returned values

                } else {
                  // Only substitute handlers pass on context
                  // and multiple values (non-spec behavior)
                  if (handler !== Identity) {
                    that = undefined;
                    args = [returned];
                  } // Process the value(s)
                  // Default process is resolve


                  (special || deferred.resolveWith)(that, args);
                }
              },
                  // Only normal processors (resolve) catch and reject exceptions
              process = special ? mightThrow : function () {
                try {
                  mightThrow();
                } catch (e) {
                  if (jQuery.Deferred.exceptionHook) {
                    jQuery.Deferred.exceptionHook(e, process.stackTrace);
                  } // Support: Promises/A+ section 2.3.3.3.4.1
                  // https://promisesaplus.com/#point-61
                  // Ignore post-resolution exceptions


                  if (depth + 1 >= maxDepth) {
                    // Only substitute handlers pass on context
                    // and multiple values (non-spec behavior)
                    if (handler !== Thrower) {
                      that = undefined;
                      args = [e];
                    }

                    deferred.rejectWith(that, args);
                  }
                }
              }; // Support: Promises/A+ section 2.3.3.3.1
              // https://promisesaplus.com/#point-57
              // Re-resolve proterminatemises immediately to dodge false rejection from
              // subsequent errors


              if (depth) {
                process();
              } else {
                // Call an optional hook to record the stack, in case of exception
                // since it's otherwise lost when execution goes async
                if (jQuery.Deferred.getStackHook) {
                  process.stackTrace = jQuery.Deferred.getStackHook();
                }

                window.setTimeout(process);
              }
            };
          }

          return jQuery.Deferred(function (newDefer) {
            // progress_handlers.add( ... )
            tuples[0][3].add(resolve(0, newDefer, isFunction(onProgress) ? onProgress : Identity, newDefer.notifyWith)); // fulfilled_handlers.add( ... )

            tuples[1][3].add(resolve(0, newDefer, isFunction(onFulfilled) ? onFulfilled : Identity)); // rejected_handlers.add( ... )

            tuples[2][3].add(resolve(0, newDefer, isFunction(onRejected) ? onRejected : Thrower));
          }).promise();
        },
        // Get a promise for this deferred
        // If obj is provided, the promise aspect is added to the object
        promise: function (obj) {
          return obj != null ? jQuery.extend(obj, promise) : promise;
        }
      },
          deferred = {}; // Add list-specific methods

      jQuery.each(tuples, function (i, tuple) {
        var list = tuple[2],
            stateString = tuple[5]; // promise.progress = list.add
        // promise.done = list.add
        // promise.fail = list.add

        promise[tuple[1]] = list.add; // Handle state

        if (stateString) {
          list.add(function () {
            // state = "resolved" (i.e., fulfilled)
            // state = "rejected"
            state = stateString;
          }, // rejected_callbacks.disable
          // fulfilled_callbacks.disable
          tuples[3 - i][2].disable, // rejected_handlers.disable
          // fulfilled_handlers.disable
          tuples[3 - i][3].disable, // progress_callbacks.lock
          tuples[0][2].lock, // progress_handlers.lock
          tuples[0][3].lock);
        } // progress_handlers.fire
        // fulfilled_handlers.fire
        // rejected_handlers.fire


        list.add(tuple[3].fire); // deferred.notify = function() { deferred.notifyWith(...) }
        // deferred.resolve = function() { deferred.resolveWith(...) }
        // deferred.reject = function() { deferred.rejectWith(...) }

        deferred[tuple[0]] = function () {
          deferred[tuple[0] + "With"](this === deferred ? undefined : this, arguments);
          return this;
        }; // deferred.notifyWith = list.fireWith
        // deferred.resolveWith = list.fireWith
        // deferred.rejectWith = list.fireWith


        deferred[tuple[0] + "With"] = list.fireWith;
      }); // Make the deferred a promise

      promise.promise(deferred); // Call given func if any

      if (func) {
        func.call(deferred, deferred);
      } // All done!


      return deferred;
    },
    // Deferred helper
    when: function (singleValue) {
      var // count of uncompleted subordinates
      remaining = arguments.length,
          // count of unprocessed arguments
      i = remaining,
          // subordinate fulfillment data
      resolveContexts = Array(i),
          resolveValues = slice.call(arguments),
          // the master Deferred
      master = jQuery.Deferred(),
          // subordinate callback factory
      updateFunc = function (i) {
        return function (value) {
          resolveContexts[i] = this;
          resolveValues[i] = arguments.length > 1 ? slice.call(arguments) : value;

          if (! --remaining) {
            master.resolveWith(resolveContexts, resolveValues);
          }
        };
      }; // Single- and empty arguments are adopted like Promise.resolve


      if (remaining <= 1) {
        adoptValue(singleValue, master.done(updateFunc(i)).resolve, master.reject, !remaining); // Use .then() to unwrap secondary thenables (cf. gh-3000)

        if (master.state() === "pending" || isFunction(resolveValues[i] && resolveValues[i].then)) {
          return master.then();
        }
      } // Multiple arguments are aggregated like Promise.all array elements


      while (i--) {
        adoptValue(resolveValues[i], updateFunc(i), master.reject);
      }

      return master.promise();
    }
  }); // These usually indicate a programmer mistake during development,
  // warn about them ASAP rather than swallowing them by default.

  var rerrorNames = /^(Eval|Internal|Range|Reference|Syntax|Type|URI)Error$/;

  jQuery.Deferred.exceptionHook = function (error, stack) {
    // Support: IE 8 - 9 only
    // Console exists when dev tools are open, which can happen at any time
    if (window.console && window.console.warn && error && rerrorNames.test(error.name)) {
      window.console.warn("jQuery.Deferred exception: " + error.message, error.stack, stack);
    }
  };

  jQuery.readyException = function (error) {
    window.setTimeout(function () {
      throw error;
    });
  }; // The deferred used on DOM ready


  var readyList = jQuery.Deferred();

  jQuery.fn.ready = function (fn) {
    readyList.then(fn) // Wrap jQuery.readyException in a function so that the lookup
    // happens at the time of error handling instead of callback
    // registration.
    .catch(function (error) {
      jQuery.readyException(error);
    });
    return this;
  };

  jQuery.extend({
    // Is the DOM ready to be used? Set to true once it occurs.
    isReady: false,
    // A counter to track how many items to wait for before
    // the ready event fires. See #6781
    readyWait: 1,
    // Handle when the DOM is ready
    ready: function (wait) {
      // Abort if there are pending holds or we're already ready
      if (wait === true ? --jQuery.readyWait : jQuery.isReady) {
        return;
      } // Remember that the DOM is ready


      jQuery.isReady = true; // If a normal DOM Ready event fired, decrement, and wait if need be

      if (wait !== true && --jQuery.readyWait > 0) {
        return;
      } // If there are functions bound, to execute


      readyList.resolveWith(document, [jQuery]);
    }
  });
  jQuery.ready.then = readyList.then; // The ready event handler and self cleanup method

  function completed() {
    document.removeEventListener("DOMContentLoaded", completed);
    window.removeEventListener("load", completed);
    jQuery.ready();
  } // Catch cases where $(document).ready() is called
  // after the browser event has already occurred.
  // Support: IE <=9 - 10 only
  // Older IE sometimes signals "interactive" too soon


  if (document.readyState === "complete" || document.readyState !== "loading" && !document.documentElement.doScroll) {
    // Handle it asynchronously to allow scripts the opportunity to delay ready
    window.setTimeout(jQuery.ready);
  } else {
    // Use the handy event callback
    document.addEventListener("DOMContentLoaded", completed); // A fallback to window.onload, that will always work

    window.addEventListener("load", completed);
  } // Multifunctional method to get and set values of a collection
  // The value/s can optionally be executed if it's a function


  var access = function (elems, fn, key, value, chainable, emptyGet, raw) {
    var i = 0,
        len = elems.length,
        bulk = key == null; // Sets many values

    if (toType(key) === "object") {
      chainable = true;

      for (i in key) {
        access(elems, fn, i, key[i], true, emptyGet, raw);
      } // Sets one value

    } else if (value !== undefined) {
      chainable = true;

      if (!isFunction(value)) {
        raw = true;
      }

      if (bulk) {
        // Bulk operations run against the entire set
        if (raw) {
          fn.call(elems, value);
          fn = null; // ...except when executing function values
        } else {
          bulk = fn;

          fn = function (elem, key, value) {
            return bulk.call(jQuery(elem), value);
          };
        }
      }

      if (fn) {
        for (; i < len; i++) {
          fn(elems[i], key, raw ? value : value.call(elems[i], i, fn(elems[i], key)));
        }
      }
    }

    if (chainable) {
      return elems;
    } // Gets


    if (bulk) {
      return fn.call(elems);
    }

    return len ? fn(elems[0], key) : emptyGet;
  }; // Matches dashed string for camelizing


  var rmsPrefix = /^-ms-/,
      rdashAlpha = /-([a-z])/g; // Used by camelCase as callback to replace()

  function fcamelCase(all, letter) {
    return letter.toUpperCase();
  } // Convert dashed to camelCase; used by the css and data modules
  // Support: IE <=9 - 11, Edge 12 - 15
  // Microsoft forgot to hump their vendor prefix (#9572)


  function camelCase(string) {
    return string.replace(rmsPrefix, "ms-").replace(rdashAlpha, fcamelCase);
  }

  var acceptData = function (owner) {
    // Accepts only:
    //  - Node
    //    - Node.ELEMENT_NODE
    //    - Node.DOCUMENT_NODE
    //  - Object
    //    - Any
    return owner.nodeType === 1 || owner.nodeType === 9 || !+owner.nodeType;
  };

  function Data() {
    this.expando = jQuery.expando + Data.uid++;
  }

  Data.uid = 1;
  Data.prototype = {
    cache: function (owner) {
      // Check if the owner object already has a cache
      var value = owner[this.expando]; // If not, create one

      if (!value) {
        value = {}; // We can accept data for non-element nodes in modern browsers,
        // but we should not, see #8335.
        // Always return an empty object.

        if (acceptData(owner)) {
          // If it is a node unlikely to be stringify-ed or looped over
          // use plain assignment
          if (owner.nodeType) {
            owner[this.expando] = value; // Otherwise secure it in a non-enumerable property
            // configurable must be true to allow the property to be
            // deleted when data is removed
          } else {
            Object.defineProperty(owner, this.expando, {
              value: value,
              configurable: true
            });
          }
        }
      }

      return value;
    },
    set: function (owner, data, value) {
      var prop,
          cache = this.cache(owner); // Handle: [ owner, key, value ] args
      // Always use camelCase key (gh-2257)

      if (typeof data === "string") {
        cache[camelCase(data)] = value; // Handle: [ owner, { properties } ] args
      } else {
        // Copy the properties one-by-one to the cache object
        for (prop in data) {
          cache[camelCase(prop)] = data[prop];
        }
      }

      return cache;
    },
    get: function (owner, key) {
      return key === undefined ? this.cache(owner) : // Always use camelCase key (gh-2257)
      owner[this.expando] && owner[this.expando][camelCase(key)];
    },
    access: function (owner, key, value) {
      // In cases where either:
      //
      //   1. No key was specified
      //   2. A string key was specified, but no value provided
      //
      // Take the "read" path and allow the get method to determine
      // which value to return, respectively either:
      //
      //   1. The entire cache object
      //   2. The data stored at the key
      //
      if (key === undefined || key && typeof key === "string" && value === undefined) {
        return this.get(owner, key);
      } // When the key is not a string, or both a key and value
      // are specified, set or extend (existing objects) with either:
      //
      //   1. An object of properties
      //   2. A key and value
      //


      this.set(owner, key, value); // Since the "set" path can have two possible entry points
      // return the expected data based on which path was taken[*]

      return value !== undefined ? value : key;
    },
    remove: function (owner, key) {
      var i,
          cache = owner[this.expando];

      if (cache === undefined) {
        return;
      }

      if (key !== undefined) {
        // Support array or space separated string of keys
        if (Array.isArray(key)) {
          // If key is an array of keys...
          // We always set camelCase keys, so remove that.
          key = key.map(camelCase);
        } else {
          key = camelCase(key); // If a key with the spaces exists, use it.
          // Otherwise, create an array by matching non-whitespace

          key = key in cache ? [key] : key.match(rnothtmlwhite) || [];
        }

        i = key.length;

        while (i--) {
          delete cache[key[i]];
        }
      } // Remove the expando if there's no more data


      if (key === undefined || jQuery.isEmptyObject(cache)) {
        // Support: Chrome <=35 - 45
        // Webkit & Blink performance suffers when deleting properties
        // from DOM nodes, so set to undefined instead
        // https://bugs.chromium.org/p/chromium/issues/detail?id=378607 (bug restricted)
        if (owner.nodeType) {
          owner[this.expando] = undefined;
        } else {
          delete owner[this.expando];
        }
      }
    },
    hasData: function (owner) {
      var cache = owner[this.expando];
      return cache !== undefined && !jQuery.isEmptyObject(cache);
    }
  };
  var dataPriv = new Data();
  var dataUser = new Data(); //	Implementation Summary
  //
  //	1. Enforce API surface and semantic compatibility with 1.9.x branch
  //	2. Improve the module's maintainability by reducing the storage
  //		paths to a single mechanism.
  //	3. Use the same single mechanism to support "private" and "user" data.
  //	4. _Never_ expose "private" data to user code (TODO: Drop _data, _removeData)
  //	5. Avoid exposing implementation details on user objects (eg. expando properties)
  //	6. Provide a clear path for implementation upgrade to WeakMap in 2014

  var rbrace = /^(?:\{[\w\W]*\}|\[[\w\W]*\])$/,
      rmultiDash = /[A-Z]/g;

  function getData(data) {
    if (data === "true") {
      return true;
    }

    if (data === "false") {
      return false;
    }

    if (data === "null") {
      return null;
    } // Only convert to a number if it doesn't change the string


    if (data === +data + "") {
      return +data;
    }

    if (rbrace.test(data)) {
      return JSON.parse(data);
    }

    return data;
  }

  function dataAttr(elem, key, data) {
    var name; // If nothing was found internally, try to fetch any
    // data from the HTML5 data-* attribute

    if (data === undefined && elem.nodeType === 1) {
      name = "data-" + key.replace(rmultiDash, "-$&").toLowerCase();
      data = elem.getAttribute(name);

      if (typeof data === "string") {
        try {
          data = getData(data);
        } catch (e) {} // Make sure we set the data so it isn't changed later


        dataUser.set(elem, key, data);
      } else {
        data = undefined;
      }
    }

    return data;
  }

  jQuery.extend({
    hasData: function (elem) {
      return dataUser.hasData(elem) || dataPriv.hasData(elem);
    },
    data: function (elem, name, data) {
      return dataUser.access(elem, name, data);
    },
    removeData: function (elem, name) {
      dataUser.remove(elem, name);
    },
    // TODO: Now that all calls to _data and _removeData have been replaced
    // with direct calls to dataPriv methods, these can be deprecated.
    _data: function (elem, name, data) {
      return dataPriv.access(elem, name, data);
    },
    _removeData: function (elem, name) {
      dataPriv.remove(elem, name);
    }
  });
  jQuery.fn.extend({
    data: function (key, value) {
      var i,
          name,
          data,
          elem = this[0],
          attrs = elem && elem.attributes; // Gets all values

      if (key === undefined) {
        if (this.length) {
          data = dataUser.get(elem);

          if (elem.nodeType === 1 && !dataPriv.get(elem, "hasDataAttrs")) {
            i = attrs.length;

            while (i--) {
              // Support: IE 11 only
              // The attrs elements can be null (#14894)
              if (attrs[i]) {
                name = attrs[i].name;

                if (name.indexOf("data-") === 0) {
                  name = camelCase(name.slice(5));
                  dataAttr(elem, name, data[name]);
                }
              }
            }

            dataPriv.set(elem, "hasDataAttrs", true);
          }
        }

        return data;
      } // Sets multiple values


      if (typeof key === "object") {
        return this.each(function () {
          dataUser.set(this, key);
        });
      }

      return access(this, function (value) {
        var data; // The calling jQuery object (element matches) is not empty
        // (and therefore has an element appears at this[ 0 ]) and the
        // `value` parameter was not undefined. An empty jQuery object
        // will result in `undefined` for elem = this[ 0 ] which will
        // throw an exception if an attempt to read a data cache is made.

        if (elem && value === undefined) {
          // Attempt to get data from the cache
          // The key will always be camelCased in Data
          data = dataUser.get(elem, key);

          if (data !== undefined) {
            return data;
          } // Attempt to "discover" the data in
          // HTML5 custom data-* attrs


          data = dataAttr(elem, key);

          if (data !== undefined) {
            return data;
          } // We tried really hard, but the data doesn't exist.


          return;
        } // Set the data...


        this.each(function () {
          // We always store the camelCased key
          dataUser.set(this, key, value);
        });
      }, null, value, arguments.length > 1, null, true);
    },
    removeData: function (key) {
      return this.each(function () {
        dataUser.remove(this, key);
      });
    }
  });
  jQuery.extend({
    queue: function (elem, type, data) {
      var queue;

      if (elem) {
        type = (type || "fx") + "queue";
        queue = dataPriv.get(elem, type); // Speed up dequeue by getting out quickly if this is just a lookup

        if (data) {
          if (!queue || Array.isArray(data)) {
            queue = dataPriv.access(elem, type, jQuery.makeArray(data));
          } else {
            queue.push(data);
          }
        }

        return queue || [];
      }
    },
    dequeue: function (elem, type) {
      type = type || "fx";

      var queue = jQuery.queue(elem, type),
          startLength = queue.length,
          fn = queue.shift(),
          hooks = jQuery._queueHooks(elem, type),
          next = function () {
        jQuery.dequeue(elem, type);
      }; // If the fx queue is dequeued, always remove the progress sentinel


      if (fn === "inprogress") {
        fn = queue.shift();
        startLength--;
      }

      if (fn) {
        // Add a progress sentinel to prevent the fx queue from being
        // automatically dequeued
        if (type === "fx") {
          queue.unshift("inprogress");
        } // Clear up the last queue stop function


        delete hooks.stop;
        fn.call(elem, next, hooks);
      }

      if (!startLength && hooks) {
        hooks.empty.fire();
      }
    },
    // Not public - generate a queueHooks object, or return the current one
    _queueHooks: function (elem, type) {
      var key = type + "queueHooks";
      return dataPriv.get(elem, key) || dataPriv.access(elem, key, {
        empty: jQuery.Callbacks("once memory").add(function () {
          dataPriv.remove(elem, [type + "queue", key]);
        })
      });
    }
  });
  jQuery.fn.extend({
    queue: function (type, data) {
      var setter = 2;

      if (typeof type !== "string") {
        data = type;
        type = "fx";
        setter--;
      }

      if (arguments.length < setter) {
        return jQuery.queue(this[0], type);
      }

      return data === undefined ? this : this.each(function () {
        var queue = jQuery.queue(this, type, data); // Ensure a hooks for this queue

        jQuery._queueHooks(this, type);

        if (type === "fx" && queue[0] !== "inprogress") {
          jQuery.dequeue(this, type);
        }
      });
    },
    dequeue: function (type) {
      return this.each(function () {
        jQuery.dequeue(this, type);
      });
    },
    clearQueue: function (type) {
      return this.queue(type || "fx", []);
    },
    // Get a promise resolved when queues of a certain type
    // are emptied (fx is the type by default)
    promise: function (type, obj) {
      var tmp,
          count = 1,
          defer = jQuery.Deferred(),
          elements = this,
          i = this.length,
          resolve = function () {
        if (! --count) {
          defer.resolveWith(elements, [elements]);
        }
      };

      if (typeof type !== "string") {
        obj = type;
        type = undefined;
      }

      type = type || "fx";

      while (i--) {
        tmp = dataPriv.get(elements[i], type + "queueHooks");

        if (tmp && tmp.empty) {
          count++;
          tmp.empty.add(resolve);
        }
      }

      resolve();
      return defer.promise(obj);
    }
  });
  var pnum = /[+-]?(?:\d*\.|)\d+(?:[eE][+-]?\d+|)/.source;
  var rcssNum = new RegExp("^(?:([+-])=|)(" + pnum + ")([a-z%]*)$", "i");
  var cssExpand = ["Top", "Right", "Bottom", "Left"];

  var isHiddenWithinTree = function (elem, el) {
    // isHiddenWithinTree might be called from jQuery#filter function;
    // in that case, element will be second argument
    elem = el || elem; // Inline style trumps all

    return elem.style.display === "none" || elem.style.display === "" && // Otherwise, check computed style
    // Support: Firefox <=43 - 45
    // Disconnected elements can have computed display: none, so first confirm that elem is
    // in the document.
    jQuery.contains(elem.ownerDocument, elem) && jQuery.css(elem, "display") === "none";
  };

  var swap = function (elem, options, callback, args) {
    var ret,
        name,
        old = {}; // Remember the old values, and insert the new ones

    for (name in options) {
      old[name] = elem.style[name];
      elem.style[name] = options[name];
    }

    ret = callback.apply(elem, args || []); // Revert the old values

    for (name in options) {
      elem.style[name] = old[name];
    }

    return ret;
  };

  function adjustCSS(elem, prop, valueParts, tween) {
    var adjusted,
        scale,
        maxIterations = 20,
        currentValue = tween ? function () {
      return tween.cur();
    } : function () {
      return jQuery.css(elem, prop, "");
    },
        initial = currentValue(),
        unit = valueParts && valueParts[3] || (jQuery.cssNumber[prop] ? "" : "px"),
        // Starting value computation is required for potential unit mismatches
    initialInUnit = (jQuery.cssNumber[prop] || unit !== "px" && +initial) && rcssNum.exec(jQuery.css(elem, prop));

    if (initialInUnit && initialInUnit[3] !== unit) {
      // Support: Firefox <=54
      // Halve the iteration target value to prevent interference from CSS upper bounds (gh-2144)
      initial = initial / 2; // Trust units reported by jQuery.css

      unit = unit || initialInUnit[3]; // Iteratively approximate from a nonzero starting point

      initialInUnit = +initial || 1;

      while (maxIterations--) {
        // Evaluate and update our best guess (doubling guesses that zero out).
        // Finish if the scale equals or crosses 1 (making the old*new product non-positive).
        jQuery.style(elem, prop, initialInUnit + unit);

        if ((1 - scale) * (1 - (scale = currentValue() / initial || 0.5)) <= 0) {
          maxIterations = 0;
        }

        initialInUnit = initialInUnit / scale;
      }

      initialInUnit = initialInUnit * 2;
      jQuery.style(elem, prop, initialInUnit + unit); // Make sure we update the tween properties later on

      valueParts = valueParts || [];
    }

    if (valueParts) {
      initialInUnit = +initialInUnit || +initial || 0; // Apply relative offset (+=/-=) if specified

      adjusted = valueParts[1] ? initialInUnit + (valueParts[1] + 1) * valueParts[2] : +valueParts[2];

      if (tween) {
        tween.unit = unit;
        tween.start = initialInUnit;
        tween.end = adjusted;
      }
    }

    return adjusted;
  }

  var defaultDisplayMap = {};

  function getDefaultDisplay(elem) {
    var temp,
        doc = elem.ownerDocument,
        nodeName = elem.nodeName,
        display = defaultDisplayMap[nodeName];

    if (display) {
      return display;
    }

    temp = doc.body.appendChild(doc.createElement(nodeName));
    display = jQuery.css(temp, "display");
    temp.parentNode.removeChild(temp);

    if (display === "none") {
      display = "block";
    }

    defaultDisplayMap[nodeName] = display;
    return display;
  }

  function showHide(elements, show) {
    var display,
        elem,
        values = [],
        index = 0,
        length = elements.length; // Determine new display value for elements that need to change

    for (; index < length; index++) {
      elem = elements[index];

      if (!elem.style) {
        continue;
      }

      display = elem.style.display;

      if (show) {
        // Since we force visibility upon cascade-hidden elements, an immediate (and slow)
        // check is required in this first loop unless we have a nonempty display value (either
        // inline or about-to-be-restored)
        if (display === "none") {
          values[index] = dataPriv.get(elem, "display") || null;

          if (!values[index]) {
            elem.style.display = "";
          }
        }

        if (elem.style.display === "" && isHiddenWithinTree(elem)) {
          values[index] = getDefaultDisplay(elem);
        }
      } else {
        if (display !== "none") {
          values[index] = "none"; // Remember what we're overwriting

          dataPriv.set(elem, "display", display);
        }
      }
    } // Set the display of the elements in a second loop to avoid constant reflow


    for (index = 0; index < length; index++) {
      if (values[index] != null) {
        elements[index].style.display = values[index];
      }
    }

    return elements;
  }

  jQuery.fn.extend({
    show: function () {
      return showHide(this, true);
    },
    hide: function () {
      return showHide(this);
    },
    toggle: function (state) {
      if (typeof state === "boolean") {
        return state ? this.show() : this.hide();
      }

      return this.each(function () {
        if (isHiddenWithinTree(this)) {
          jQuery(this).show();
        } else {
          jQuery(this).hide();
        }
      });
    }
  });
  var rcheckableType = /^(?:checkbox|radio)$/i;
  var rtagName = /<([a-z][^\/\0>\x20\t\r\n\f]+)/i;
  var rscriptType = /^$|^module$|\/(?:java|ecma)script/i; // We have to close these tags to support XHTML (#13200)

  var wrapMap = {
    // Support: IE <=9 only
    option: [1, "<select multiple='multiple'>", "</select>"],
    // XHTML parsers do not magically insert elements in the
    // same way that tag soup parsers do. So we cannot shorten
    // this by omitting <tbody> or other required elements.
    thead: [1, "<table>", "</table>"],
    col: [2, "<table><colgroup>", "</colgroup></table>"],
    tr: [2, "<table><tbody>", "</tbody></table>"],
    td: [3, "<table><tbody><tr>", "</tr></tbody></table>"],
    _default: [0, "", ""]
  }; // Support: IE <=9 only

  wrapMap.optgroup = wrapMap.option;
  wrapMap.tbody = wrapMap.tfoot = wrapMap.colgroup = wrapMap.caption = wrapMap.thead;
  wrapMap.th = wrapMap.td;

  function getAll(context, tag) {
    // Support: IE <=9 - 11 only
    // Use typeof to avoid zero-argument method invocation on host objects (#15151)
    var ret;

    if (typeof context.getElementsByTagName !== "undefined") {
      ret = context.getElementsByTagName(tag || "*");
    } else if (typeof context.querySelectorAll !== "undefined") {
      ret = context.querySelectorAll(tag || "*");
    } else {
      ret = [];
    }

    if (tag === undefined || tag && nodeName(context, tag)) {
      return jQuery.merge([context], ret);
    }

    return ret;
  } // Mark scripts as having already been evaluated


  function setGlobalEval(elems, refElements) {
    var i = 0,
        l = elems.length;

    for (; i < l; i++) {
      dataPriv.set(elems[i], "globalEval", !refElements || dataPriv.get(refElements[i], "globalEval"));
    }
  }

  var rhtml = /<|&#?\w+;/;

  function buildFragment(elems, context, scripts, selection, ignored) {
    var elem,
        tmp,
        tag,
        wrap,
        contains,
        j,
        fragment = context.createDocumentFragment(),
        nodes = [],
        i = 0,
        l = elems.length;

    for (; i < l; i++) {
      elem = elems[i];

      if (elem || elem === 0) {
        // Add nodes directly
        if (toType(elem) === "object") {
          // Support: Android <=4.0 only, PhantomJS 1 only
          // push.apply(_, arraylike) throws on ancient WebKit
          jQuery.merge(nodes, elem.nodeType ? [elem] : elem); // Convert non-html into a text node
        } else if (!rhtml.test(elem)) {
          nodes.push(context.createTextNode(elem)); // Convert html into DOM nodes
        } else {
          tmp = tmp || fragment.appendChild(context.createElement("div")); // Deserialize a standard representation

          tag = (rtagName.exec(elem) || ["", ""])[1].toLowerCase();
          wrap = wrapMap[tag] || wrapMap._default;
          tmp.innerHTML = wrap[1] + jQuery.htmlPrefilter(elem) + wrap[2]; // Descend through wrappers to the right content

          j = wrap[0];

          while (j--) {
            tmp = tmp.lastChild;
          } // Support: Android <=4.0 only, PhantomJS 1 only
          // push.apply(_, arraylike) throws on ancient WebKit


          jQuery.merge(nodes, tmp.childNodes); // Remember the top-level container

          tmp = fragment.firstChild; // Ensure the created nodes are orphaned (#12392)

          tmp.textContent = "";
        }
      }
    } // Remove wrapper from fragment


    fragment.textContent = "";
    i = 0;

    while (elem = nodes[i++]) {
      // Skip elements already in the context collection (trac-4087)
      if (selection && jQuery.inArray(elem, selection) > -1) {
        if (ignored) {
          ignored.push(elem);
        }

        continue;
      }

      contains = jQuery.contains(elem.ownerDocument, elem); // Append to fragment

      tmp = getAll(fragment.appendChild(elem), "script"); // Preserve script evaluation history

      if (contains) {
        setGlobalEval(tmp);
      } // Capture executables


      if (scripts) {
        j = 0;

        while (elem = tmp[j++]) {
          if (rscriptType.test(elem.type || "")) {
            scripts.push(elem);
          }
        }
      }
    }

    return fragment;
  }

  (function () {
    var fragment = document.createDocumentFragment(),
        div = fragment.appendChild(document.createElement("div")),
        input = document.createElement("input"); // Support: Android 4.0 - 4.3 only
    // Check state lost if the name is set (#11217)
    // Support: Windows Web Apps (WWA)
    // `name` and `type` must use .setAttribute for WWA (#14901)

    input.setAttribute("type", "radio");
    input.setAttribute("checked", "checked");
    input.setAttribute("name", "t");
    div.appendChild(input); // Support: Android <=4.1 only
    // Older WebKit doesn't clone checked state correctly in fragments

    support.checkClone = div.cloneNode(true).cloneNode(true).lastChild.checked; // Support: IE <=11 only
    // Make sure textarea (and checkbox) defaultValue is properly cloned

    div.innerHTML = "<textarea>x</textarea>";
    support.noCloneChecked = !!div.cloneNode(true).lastChild.defaultValue;
  })();

  var documentElement = document.documentElement;
  var rkeyEvent = /^key/,
      rmouseEvent = /^(?:mouse|pointer|contextmenu|drag|drop)|click/,
      rtypenamespace = /^([^.]*)(?:\.(.+)|)/;

  function returnTrue() {
    return true;
  }

  function returnFalse() {
    return false;
  } // Support: IE <=9 only
  // See #13393 for more info


  function safeActiveElement() {
    try {
      return document.activeElement;
    } catch (err) {}
  }

  function on(elem, types, selector, data, fn, one) {
    var origFn, type; // Types can be a map of types/handlers

    if (typeof types === "object") {
      // ( types-Object, selector, data )
      if (typeof selector !== "string") {
        // ( types-Object, data )
        data = data || selector;
        selector = undefined;
      }

      for (type in types) {
        on(elem, type, selector, data, types[type], one);
      }

      return elem;
    }

    if (data == null && fn == null) {
      // ( types, fn )
      fn = selector;
      data = selector = undefined;
    } else if (fn == null) {
      if (typeof selector === "string") {
        // ( types, selector, fn )
        fn = data;
        data = undefined;
      } else {
        // ( types, data, fn )
        fn = data;
        data = selector;
        selector = undefined;
      }
    }

    if (fn === false) {
      fn = returnFalse;
    } else if (!fn) {
      return elem;
    }

    if (one === 1) {
      origFn = fn;

      fn = function (event) {
        // Can use an empty set, since event contains the info
        jQuery().off(event);
        return origFn.apply(this, arguments);
      }; // Use same guid so caller can remove using origFn


      fn.guid = origFn.guid || (origFn.guid = jQuery.guid++);
    }

    return elem.each(function () {
      jQuery.event.add(this, types, fn, data, selector);
    });
  }
  /*
   * Helper functions for managing events -- not part of the public interface.
   * Props to Dean Edwards' addEvent library for many of the ideas.
   */


  jQuery.event = {
    global: {},
    add: function (elem, types, handler, data, selector) {
      var handleObjIn,
          eventHandle,
          tmp,
          events,
          t,
          handleObj,
          special,
          handlers,
          type,
          namespaces,
          origType,
          elemData = dataPriv.get(elem); // Don't attach events to noData or text/comment nodes (but allow plain objects)

      if (!elemData) {
        return;
      } // Caller can pass in an object of custom data in lieu of the handler


      if (handler.handler) {
        handleObjIn = handler;
        handler = handleObjIn.handler;
        selector = handleObjIn.selector;
      } // Ensure that invalid selectors throw exceptions at attach time
      // Evaluate against documentElement in case elem is a non-element node (e.g., document)


      if (selector) {
        jQuery.find.matchesSelector(documentElement, selector);
      } // Make sure that the handler has a unique ID, used to find/remove it later


      if (!handler.guid) {
        handler.guid = jQuery.guid++;
      } // Init the element's event structure and main handler, if this is the first


      if (!(events = elemData.events)) {
        events = elemData.events = {};
      }

      if (!(eventHandle = elemData.handle)) {
        eventHandle = elemData.handle = function (e) {
          // Discard the second event of a jQuery.event.trigger() and
          // when an event is called after a page has unloaded
          return typeof jQuery !== "undefined" && jQuery.event.triggered !== e.type ? jQuery.event.dispatch.apply(elem, arguments) : undefined;
        };
      } // Handle multiple events separated by a space


      types = (types || "").match(rnothtmlwhite) || [""];
      t = types.length;

      while (t--) {
        tmp = rtypenamespace.exec(types[t]) || [];
        type = origType = tmp[1];
        namespaces = (tmp[2] || "").split(".").sort(); // There *must* be a type, no attaching namespace-only handlers

        if (!type) {
          continue;
        } // If event changes its type, use the special event handlers for the changed type


        special = jQuery.event.special[type] || {}; // If selector defined, determine special event api type, otherwise given type

        type = (selector ? special.delegateType : special.bindType) || type; // Update special based on newly reset type

        special = jQuery.event.special[type] || {}; // handleObj is passed to all event handlers

        handleObj = jQuery.extend({
          type: type,
          origType: origType,
          data: data,
          handler: handler,
          guid: handler.guid,
          selector: selector,
          needsContext: selector && jQuery.expr.match.needsContext.test(selector),
          namespace: namespaces.join(".")
        }, handleObjIn); // Init the event handler queue if we're the first

        if (!(handlers = events[type])) {
          handlers = events[type] = [];
          handlers.delegateCount = 0; // Only use addEventListener if the special events handler returns false

          if (!special.setup || special.setup.call(elem, data, namespaces, eventHandle) === false) {
            if (elem.addEventListener) {
              elem.addEventListener(type, eventHandle);
            }
          }
        }

        if (special.add) {
          special.add.call(elem, handleObj);

          if (!handleObj.handler.guid) {
            handleObj.handler.guid = handler.guid;
          }
        } // Add to the element's handler list, delegates in front


        if (selector) {
          handlers.splice(handlers.delegateCount++, 0, handleObj);
        } else {
          handlers.push(handleObj);
        } // Keep track of which events have ever been used, for event optimization


        jQuery.event.global[type] = true;
      }
    },
    // Detach an event or set of events from an element
    remove: function (elem, types, handler, selector, mappedTypes) {
      var j,
          origCount,
          tmp,
          events,
          t,
          handleObj,
          special,
          handlers,
          type,
          namespaces,
          origType,
          elemData = dataPriv.hasData(elem) && dataPriv.get(elem);

      if (!elemData || !(events = elemData.events)) {
        return;
      } // Once for each type.namespace in types; type may be omitted


      types = (types || "").match(rnothtmlwhite) || [""];
      t = types.length;

      while (t--) {
        tmp = rtypenamespace.exec(types[t]) || [];
        type = origType = tmp[1];
        namespaces = (tmp[2] || "").split(".").sort(); // Unbind all events (on this namespace, if provided) for the element

        if (!type) {
          for (type in events) {
            jQuery.event.remove(elem, type + types[t], handler, selector, true);
          }

          continue;
        }

        special = jQuery.event.special[type] || {};
        type = (selector ? special.delegateType : special.bindType) || type;
        handlers = events[type] || [];
        tmp = tmp[2] && new RegExp("(^|\\.)" + namespaces.join("\\.(?:.*\\.|)") + "(\\.|$)"); // Remove matching events

        origCount = j = handlers.length;

        while (j--) {
          handleObj = handlers[j];

          if ((mappedTypes || origType === handleObj.origType) && (!handler || handler.guid === handleObj.guid) && (!tmp || tmp.test(handleObj.namespace)) && (!selector || selector === handleObj.selector || selector === "**" && handleObj.selector)) {
            handlers.splice(j, 1);

            if (handleObj.selector) {
              handlers.delegateCount--;
            }

            if (special.remove) {
              special.remove.call(elem, handleObj);
            }
          }
        } // Remove generic event handler if we removed something and no more handlers exist
        // (avoids potential for endless recursion during removal of special event handlers)


        if (origCount && !handlers.length) {
          if (!special.teardown || special.teardown.call(elem, namespaces, elemData.handle) === false) {
            jQuery.removeEvent(elem, type, elemData.handle);
          }

          delete events[type];
        }
      } // Remove data and the expando if it's no longer used


      if (jQuery.isEmptyObject(events)) {
        dataPriv.remove(elem, "handle events");
      }
    },
    dispatch: function (nativeEvent) {
      // Make a writable jQuery.Event from the native event object
      var event = jQuery.event.fix(nativeEvent);
      var i,
          j,
          ret,
          matched,
          handleObj,
          handlerQueue,
          args = new Array(arguments.length),
          handlers = (dataPriv.get(this, "events") || {})[event.type] || [],
          special = jQuery.event.special[event.type] || {}; // Use the fix-ed jQuery.Event rather than the (read-only) native event

      args[0] = event;

      for (i = 1; i < arguments.length; i++) {
        args[i] = arguments[i];
      }

      event.delegateTarget = this; // Call the preDispatch hook for the mapped type, and let it bail if desired

      if (special.preDispatch && special.preDispatch.call(this, event) === false) {
        return;
      } // Determine handlers


      handlerQueue = jQuery.event.handlers.call(this, event, handlers); // Run delegates first; they may want to stop propagation beneath us

      i = 0;

      while ((matched = handlerQueue[i++]) && !event.isPropagationStopped()) {
        event.currentTarget = matched.elem;
        j = 0;

        while ((handleObj = matched.handlers[j++]) && !event.isImmediatePropagationStopped()) {
          // Triggered event must either 1) have no namespace, or 2) have namespace(s)
          // a subset or equal to those in the bound event (both can have no namespace).
          if (!event.rnamespace || event.rnamespace.test(handleObj.namespace)) {
            event.handleObj = handleObj;
            event.data = handleObj.data;
            ret = ((jQuery.event.special[handleObj.origType] || {}).handle || handleObj.handler).apply(matched.elem, args);

            if (ret !== undefined) {
              if ((event.result = ret) === false) {
                event.preventDefault();
                event.stopPropagation();
              }
            }
          }
        }
      } // Call the postDispatch hook for the mapped type


      if (special.postDispatch) {
        special.postDispatch.call(this, event);
      }

      return event.result;
    },
    handlers: function (event, handlers) {
      var i,
          handleObj,
          sel,
          matchedHandlers,
          matchedSelectors,
          handlerQueue = [],
          delegateCount = handlers.delegateCount,
          cur = event.target; // Find delegate handlers

      if (delegateCount && // Support: IE <=9
      // Black-hole SVG <use> instance trees (trac-13180)
      cur.nodeType && // Support: Firefox <=42
      // Suppress spec-violating clicks indicating a non-primary pointer button (trac-3861)
      // https://www.w3.org/TR/DOM-Level-3-Events/#event-type-click
      // Support: IE 11 only
      // ...but not arrow key "clicks" of radio inputs, which can have `button` -1 (gh-2343)
      !(event.type === "click" && event.button >= 1)) {
        for (; cur !== this; cur = cur.parentNode || this) {
          // Don't check non-elements (#13208)
          // Don't process clicks on disabled elements (#6911, #8165, #11382, #11764)
          if (cur.nodeType === 1 && !(event.type === "click" && cur.disabled === true)) {
            matchedHandlers = [];
            matchedSelectors = {};

            for (i = 0; i < delegateCount; i++) {
              handleObj = handlers[i]; // Don't conflict with Object.prototype properties (#13203)

              sel = handleObj.selector + " ";

              if (matchedSelectors[sel] === undefined) {
                matchedSelectors[sel] = handleObj.needsContext ? jQuery(sel, this).index(cur) > -1 : jQuery.find(sel, this, null, [cur]).length;
              }

              if (matchedSelectors[sel]) {
                matchedHandlers.push(handleObj);
              }
            }

            if (matchedHandlers.length) {
              handlerQueue.push({
                elem: cur,
                handlers: matchedHandlers
              });
            }
          }
        }
      } // Add the remaining (directly-bound) handlers


      cur = this;

      if (delegateCount < handlers.length) {
        handlerQueue.push({
          elem: cur,
          handlers: handlers.slice(delegateCount)
        });
      }

      return handlerQueue;
    },
    addProp: function (name, hook) {
      Object.defineProperty(jQuery.Event.prototype, name, {
        enumerable: true,
        configurable: true,
        get: isFunction(hook) ? function () {
          if (this.originalEvent) {
            return hook(this.originalEvent);
          }
        } : function () {
          if (this.originalEvent) {
            return this.originalEvent[name];
          }
        },
        set: function (value) {
          Object.defineProperty(this, name, {
            enumerable: true,
            configurable: true,
            writable: true,
            value: value
          });
        }
      });
    },
    fix: function (originalEvent) {
      return originalEvent[jQuery.expando] ? originalEvent : new jQuery.Event(originalEvent);
    },
    special: {
      load: {
        // Prevent triggered image.load events from bubbling to window.load
        noBubble: true
      },
      focus: {
        // Fire native event if possible so blur/focus sequence is correct
        trigger: function () {
          if (this !== safeActiveElement() && this.focus) {
            this.focus();
            return false;
          }
        },
        delegateType: "focusin"
      },
      blur: {
        trigger: function () {
          if (this === safeActiveElement() && this.blur) {
            this.blur();
            return false;
          }
        },
        delegateType: "focusout"
      },
      click: {
        // For checkbox, fire native event so checked state will be right
        trigger: function () {
          if (this.type === "checkbox" && this.click && nodeName(this, "input")) {
            this.click();
            return false;
          }
        },
        // For cross-browser consistency, don't fire native .click() on links
        _default: function (event) {
          return nodeName(event.target, "a");
        }
      },
      beforeunload: {
        postDispatch: function (event) {
          // Support: Firefox 20+
          // Firefox doesn't alert if the returnValue field is not set.
          if (event.result !== undefined && event.originalEvent) {
            event.originalEvent.returnValue = event.result;
          }
        }
      }
    }
  };

  jQuery.removeEvent = function (elem, type, handle) {
    // This "if" is needed for plain objects
    if (elem.removeEventListener) {
      elem.removeEventListener(type, handle);
    }
  };

  jQuery.Event = function (src, props) {
    // Allow instantiation without the 'new' keyword
    if (!(this instanceof jQuery.Event)) {
      return new jQuery.Event(src, props);
    } // Event object


    if (src && src.type) {
      this.originalEvent = src;
      this.type = src.type; // Events bubbling up the document may have been marked as prevented
      // by a handler lower down the tree; reflect the correct value.

      this.isDefaultPrevented = src.defaultPrevented || src.defaultPrevented === undefined && // Support: Android <=2.3 only
      src.returnValue === false ? returnTrue : returnFalse; // Create target properties
      // Support: Safari <=6 - 7 only
      // Target should not be a text node (#504, #13143)

      this.target = src.target && src.target.nodeType === 3 ? src.target.parentNode : src.target;
      this.currentTarget = src.currentTarget;
      this.relatedTarget = src.relatedTarget; // Event type
    } else {
      this.type = src;
    } // Put explicitly provided properties onto the event object


    if (props) {
      jQuery.extend(this, props);
    } // Create a timestamp if incoming event doesn't have one


    this.timeStamp = src && src.timeStamp || Date.now(); // Mark it as fixed

    this[jQuery.expando] = true;
  }; // jQuery.Event is based on DOM3 Events as specified by the ECMAScript Language Binding
  // https://www.w3.org/TR/2003/WD-DOM-Level-3-Events-20030331/ecma-script-binding.html


  jQuery.Event.prototype = {
    constructor: jQuery.Event,
    isDefaultPrevented: returnFalse,
    isPropagationStopped: returnFalse,
    isImmediatePropagationStopped: returnFalse,
    isSimulated: false,
    preventDefault: function () {
      var e = this.originalEvent;
      this.isDefaultPrevented = returnTrue;

      if (e && !this.isSimulated) {
        e.preventDefault();
      }
    },
    stopPropagation: function () {
      var e = this.originalEvent;
      this.isPropagationStopped = returnTrue;

      if (e && !this.isSimulated) {
        e.stopPropagation();
      }
    },
    stopImmediatePropagation: function () {
      var e = this.originalEvent;
      this.isImmediatePropagationStopped = returnTrue;

      if (e && !this.isSimulated) {
        e.stopImmediatePropagation();
      }

      this.stopPropagation();
    }
  }; // Includes all common event props including KeyEvent and MouseEvent specific props

  jQuery.each({
    altKey: true,
    bubbles: true,
    cancelable: true,
    changedTouches: true,
    ctrlKey: true,
    detail: true,
    eventPhase: true,
    metaKey: true,
    pageX: true,
    pageY: true,
    shiftKey: true,
    view: true,
    "char": true,
    charCode: true,
    key: true,
    keyCode: true,
    button: true,
    buttons: true,
    clientX: true,
    clientY: true,
    offsetX: true,
    offsetY: true,
    pointerId: true,
    pointerType: true,
    screenX: true,
    screenY: true,
    targetTouches: true,
    toElement: true,
    touches: true,
    which: function (event) {
      var button = event.button; // Add which for key events

      if (event.which == null && rkeyEvent.test(event.type)) {
        return event.charCode != null ? event.charCode : event.keyCode;
      } // Add which for click: 1 === left; 2 === middle; 3 === right


      if (!event.which && button !== undefined && rmouseEvent.test(event.type)) {
        if (button & 1) {
          return 1;
        }

        if (button & 2) {
          return 3;
        }

        if (button & 4) {
          return 2;
        }

        return 0;
      }

      return event.which;
    }
  }, jQuery.event.addProp); // Create mouseenter/leave events using mouseover/out and event-time checks
  // so that event delegation works in jQuery.
  // Do the same for pointerenter/pointerleave and pointerover/pointerout
  //
  // Support: Safari 7 only
  // Safari sends mouseenter too often; see:
  // https://bugs.chromium.org/p/chromium/issues/detail?id=470258
  // for the description of the bug (it existed in older Chrome versions as well).

  jQuery.each({
    mouseenter: "mouseover",
    mouseleave: "mouseout",
    pointerenter: "pointerover",
    pointerleave: "pointerout"
  }, function (orig, fix) {
    jQuery.event.special[orig] = {
      delegateType: fix,
      bindType: fix,
      handle: function (event) {
        var ret,
            target = this,
            related = event.relatedTarget,
            handleObj = event.handleObj; // For mouseenter/leave call the handler if related is outside the target.
        // NB: No relatedTarget if the mouse left/entered the browser window

        if (!related || related !== target && !jQuery.contains(target, related)) {
          event.type = handleObj.origType;
          ret = handleObj.handler.apply(this, arguments);
          event.type = fix;
        }

        return ret;
      }
    };
  });
  jQuery.fn.extend({
    on: function (types, selector, data, fn) {
      return on(this, types, selector, data, fn);
    },
    one: function (types, selector, data, fn) {
      return on(this, types, selector, data, fn, 1);
    },
    off: function (types, selector, fn) {
      var handleObj, type;

      if (types && types.preventDefault && types.handleObj) {
        // ( event )  dispatched jQuery.Event
        handleObj = types.handleObj;
        jQuery(types.delegateTarget).off(handleObj.namespace ? handleObj.origType + "." + handleObj.namespace : handleObj.origType, handleObj.selector, handleObj.handler);
        return this;
      }

      if (typeof types === "object") {
        // ( types-object [, selector] )
        for (type in types) {
          this.off(type, selector, types[type]);
        }

        return this;
      }

      if (selector === false || typeof selector === "function") {
        // ( types [, fn] )
        fn = selector;
        selector = undefined;
      }

      if (fn === false) {
        fn = returnFalse;
      }

      return this.each(function () {
        jQuery.event.remove(this, types, fn, selector);
      });
    }
  });
  var
  /* eslint-disable max-len */
  // See https://github.com/eslint/eslint/issues/3229
  rxhtmlTag = /<(?!area|br|col|embed|hr|img|input|link|meta|param)(([a-z][^\/\0>\x20\t\r\n\f]*)[^>]*)\/>/gi,

  /* eslint-enable */
  // Support: IE <=10 - 11, Edge 12 - 13 only
  // In IE/Edge using regex groups here causes severe slowdowns.
  // See https://connect.microsoft.com/IE/feedback/details/1736512/
  rnoInnerhtml = /<script|<style|<link/i,
      // checked="checked" or checked
  rchecked = /checked\s*(?:[^=]|=\s*.checked.)/i,
      rcleanScript = /^\s*<!(?:\[CDATA\[|--)|(?:\]\]|--)>\s*$/g; // Prefer a tbody over its parent table for containing new rows

  function manipulationTarget(elem, content) {
    if (nodeName(elem, "table") && nodeName(content.nodeType !== 11 ? content : content.firstChild, "tr")) {
      return jQuery(elem).children("tbody")[0] || elem;
    }

    return elem;
  } // Replace/restore the type attribute of script elements for safe DOM manipulation


  function disableScript(elem) {
    elem.type = (elem.getAttribute("type") !== null) + "/" + elem.type;
    return elem;
  }

  function restoreScript(elem) {
    if ((elem.type || "").slice(0, 5) === "true/") {
      elem.type = elem.type.slice(5);
    } else {
      elem.removeAttribute("type");
    }

    return elem;
  }

  function cloneCopyEvent(src, dest) {
    var i, l, type, pdataOld, pdataCur, udataOld, udataCur, events;

    if (dest.nodeType !== 1) {
      return;
    } // 1. Copy private data: events, handlers, etc.


    if (dataPriv.hasData(src)) {
      pdataOld = dataPriv.access(src);
      pdataCur = dataPriv.set(dest, pdataOld);
      events = pdataOld.events;

      if (events) {
        delete pdataCur.handle;
        pdataCur.events = {};

        for (type in events) {
          for (i = 0, l = events[type].length; i < l; i++) {
            jQuery.event.add(dest, type, events[type][i]);
          }
        }
      }
    } // 2. Copy user data


    if (dataUser.hasData(src)) {
      udataOld = dataUser.access(src);
      udataCur = jQuery.extend({}, udataOld);
      dataUser.set(dest, udataCur);
    }
  } // Fix IE bugs, see support tests


  function fixInput(src, dest) {
    var nodeName = dest.nodeName.toLowerCase(); // Fails to persist the checked state of a cloned checkbox or radio button.

    if (nodeName === "input" && rcheckableType.test(src.type)) {
      dest.checked = src.checked; // Fails to return the selected option to the default selected state when cloning options
    } else if (nodeName === "input" || nodeName === "textarea") {
      dest.defaultValue = src.defaultValue;
    }
  }

  function domManip(collection, args, callback, ignored) {
    // Flatten any nested arrays
    args = concat.apply([], args);
    var fragment,
        first,
        scripts,
        hasScripts,
        node,
        doc,
        i = 0,
        l = collection.length,
        iNoClone = l - 1,
        value = args[0],
        valueIsFunction = isFunction(value); // We can't cloneNode fragments that contain checked, in WebKit

    if (valueIsFunction || l > 1 && typeof value === "string" && !support.checkClone && rchecked.test(value)) {
      return collection.each(function (index) {
        var self = collection.eq(index);

        if (valueIsFunction) {
          args[0] = value.call(this, index, self.html());
        }

        domManip(self, args, callback, ignored);
      });
    }

    if (l) {
      fragment = buildFragment(args, collection[0].ownerDocument, false, collection, ignored);
      first = fragment.firstChild;

      if (fragment.childNodes.length === 1) {
        fragment = first;
      } // Require either new content or an interest in ignored elements to invoke the callback


      if (first || ignored) {
        scripts = jQuery.map(getAll(fragment, "script"), disableScript);
        hasScripts = scripts.length; // Use the original fragment for the last item
        // instead of the first because it can end up
        // being emptied incorrectly in certain situations (#8070).

        for (; i < l; i++) {
          node = fragment;

          if (i !== iNoClone) {
            node = jQuery.clone(node, true, true); // Keep references to cloned scripts for later restoration

            if (hasScripts) {
              // Support: Android <=4.0 only, PhantomJS 1 only
              // push.apply(_, arraylike) throws on ancient WebKit
              jQuery.merge(scripts, getAll(node, "script"));
            }
          }

          callback.call(collection[i], node, i);
        }

        if (hasScripts) {
          doc = scripts[scripts.length - 1].ownerDocument; // Reenable scripts

          jQuery.map(scripts, restoreScript); // Evaluate executable scripts on first document insertion

          for (i = 0; i < hasScripts; i++) {
            node = scripts[i];

            if (rscriptType.test(node.type || "") && !dataPriv.access(node, "globalEval") && jQuery.contains(doc, node)) {
              if (node.src && (node.type || "").toLowerCase() !== "module") {
                // Optional AJAX dependency, but won't run scripts if not present
                if (jQuery._evalUrl) {
                  jQuery._evalUrl(node.src);
                }
              } else {
                DOMEval(node.textContent.replace(rcleanScript, ""), doc, node);
              }
            }
          }
        }
      }
    }

    return collection;
  }

  function remove(elem, selector, keepData) {
    var node,
        nodes = selector ? jQuery.filter(selector, elem) : elem,
        i = 0;

    for (; (node = nodes[i]) != null; i++) {
      if (!keepData && node.nodeType === 1) {
        jQuery.cleanData(getAll(node));
      }

      if (node.parentNode) {
        if (keepData && jQuery.contains(node.ownerDocument, node)) {
          setGlobalEval(getAll(node, "script"));
        }

        node.parentNode.removeChild(node);
      }
    }

    return elem;
  }

  jQuery.extend({
    htmlPrefilter: function (html) {
      return html.replace(rxhtmlTag, "<$1></$2>");
    },
    clone: function (elem, dataAndEvents, deepDataAndEvents) {
      var i,
          l,
          srcElements,
          destElements,
          clone = elem.cloneNode(true),
          inPage = jQuery.contains(elem.ownerDocument, elem); // Fix IE cloning issues

      if (!support.noCloneChecked && (elem.nodeType === 1 || elem.nodeType === 11) && !jQuery.isXMLDoc(elem)) {
        // We eschew Sizzle here for performance reasons: https://jsperf.com/getall-vs-sizzle/2
        destElements = getAll(clone);
        srcElements = getAll(elem);

        for (i = 0, l = srcElements.length; i < l; i++) {
          fixInput(srcElements[i], destElements[i]);
        }
      } // Copy the events from the original to the clone


      if (dataAndEvents) {
        if (deepDataAndEvents) {
          srcElements = srcElements || getAll(elem);
          destElements = destElements || getAll(clone);

          for (i = 0, l = srcElements.length; i < l; i++) {
            cloneCopyEvent(srcElements[i], destElements[i]);
          }
        } else {
          cloneCopyEvent(elem, clone);
        }
      } // Preserve script evaluation history


      destElements = getAll(clone, "script");

      if (destElements.length > 0) {
        setGlobalEval(destElements, !inPage && getAll(elem, "script"));
      } // Return the cloned set


      return clone;
    },
    cleanData: function (elems) {
      var data,
          elem,
          type,
          special = jQuery.event.special,
          i = 0;

      for (; (elem = elems[i]) !== undefined; i++) {
        if (acceptData(elem)) {
          if (data = elem[dataPriv.expando]) {
            if (data.events) {
              for (type in data.events) {
                if (special[type]) {
                  jQuery.event.remove(elem, type); // This is a shortcut to avoid jQuery.event.remove's overhead
                } else {
                  jQuery.removeEvent(elem, type, data.handle);
                }
              }
            } // Support: Chrome <=35 - 45+
            // Assign undefined instead of using delete, see Data#remove


            elem[dataPriv.expando] = undefined;
          }

          if (elem[dataUser.expando]) {
            // Support: Chrome <=35 - 45+
            // Assign undefined instead of using delete, see Data#remove
            elem[dataUser.expando] = undefined;
          }
        }
      }
    }
  });
  jQuery.fn.extend({
    detach: function (selector) {
      return remove(this, selector, true);
    },
    remove: function (selector) {
      return remove(this, selector);
    },
    text: function (value) {
      return access(this, function (value) {
        return value === undefined ? jQuery.text(this) : this.empty().each(function () {
          if (this.nodeType === 1 || this.nodeType === 11 || this.nodeType === 9) {
            this.textContent = value;
          }
        });
      }, null, value, arguments.length);
    },
    append: function () {
      return domManip(this, arguments, function (elem) {
        if (this.nodeType === 1 || this.nodeType === 11 || this.nodeType === 9) {
          var target = manipulationTarget(this, elem);
          target.appendChild(elem);
        }
      });
    },
    prepend: function () {
      return domManip(this, arguments, function (elem) {
        if (this.nodeType === 1 || this.nodeType === 11 || this.nodeType === 9) {
          var target = manipulationTarget(this, elem);
          target.insertBefore(elem, target.firstChild);
        }
      });
    },
    before: function () {
      return domManip(this, arguments, function (elem) {
        if (this.parentNode) {
          this.parentNode.insertBefore(elem, this);
        }
      });
    },
    after: function () {
      return domManip(this, arguments, function (elem) {
        if (this.parentNode) {
          this.parentNode.insertBefore(elem, this.nextSibling);
        }
      });
    },
    empty: function () {
      var elem,
          i = 0;

      for (; (elem = this[i]) != null; i++) {
        if (elem.nodeType === 1) {
          // Prevent memory leaks
          jQuery.cleanData(getAll(elem, false)); // Remove any remaining nodes

          elem.textContent = "";
        }
      }

      return this;
    },
    clone: function (dataAndEvents, deepDataAndEvents) {
      dataAndEvents = dataAndEvents == null ? false : dataAndEvents;
      deepDataAndEvents = deepDataAndEvents == null ? dataAndEvents : deepDataAndEvents;
      return this.map(function () {
        return jQuery.clone(this, dataAndEvents, deepDataAndEvents);
      });
    },
    html: function (value) {
      return access(this, function (value) {
        var elem = this[0] || {},
            i = 0,
            l = this.length;

        if (value === undefined && elem.nodeType === 1) {
          return elem.innerHTML;
        } // See if we can take a shortcut and just use innerHTML


        if (typeof value === "string" && !rnoInnerhtml.test(value) && !wrapMap[(rtagName.exec(value) || ["", ""])[1].toLowerCase()]) {
          value = jQuery.htmlPrefilter(value);

          try {
            for (; i < l; i++) {
              elem = this[i] || {}; // Remove element nodes and prevent memory leaks

              if (elem.nodeType === 1) {
                jQuery.cleanData(getAll(elem, false));
                elem.innerHTML = value;
              }
            }

            elem = 0; // If using innerHTML throws an exception, use the fallback method
          } catch (e) {}
        }

        if (elem) {
          this.empty().append(value);
        }
      }, null, value, arguments.length);
    },
    replaceWith: function () {
      var ignored = []; // Make the changes, replacing each non-ignored context element with the new content

      return domManip(this, arguments, function (elem) {
        var parent = this.parentNode;

        if (jQuery.inArray(this, ignored) < 0) {
          jQuery.cleanData(getAll(this));

          if (parent) {
            parent.replaceChild(elem, this);
          }
        } // Force callback invocation

      }, ignored);
    }
  });
  jQuery.each({
    appendTo: "append",
    prependTo: "prepend",
    insertBefore: "before",
    insertAfter: "after",
    replaceAll: "replaceWith"
  }, function (name, original) {
    jQuery.fn[name] = function (selector) {
      var elems,
          ret = [],
          insert = jQuery(selector),
          last = insert.length - 1,
          i = 0;

      for (; i <= last; i++) {
        elems = i === last ? this : this.clone(true);
        jQuery(insert[i])[original](elems); // Support: Android <=4.0 only, PhantomJS 1 only
        // .get() because push.apply(_, arraylike) throws on ancient WebKit

        push.apply(ret, elems.get());
      }

      return this.pushStack(ret);
    };
  });
  var rnumnonpx = new RegExp("^(" + pnum + ")(?!px)[a-z%]+$", "i");

  var getStyles = function (elem) {
    // Support: IE <=11 only, Firefox <=30 (#15098, #14150)
    // IE throws on elements created in popups
    // FF meanwhile throws on frame elements through "defaultView.getComputedStyle"
    var view = elem.ownerDocument.defaultView;

    if (!view || !view.opener) {
      view = window;
    }

    return view.getComputedStyle(elem);
  };

  var rboxStyle = new RegExp(cssExpand.join("|"), "i");

  (function () {
    // Executing both pixelPosition & boxSizingReliable tests require only one layout
    // so they're executed at the same time to save the second computation.
    function computeStyleTests() {
      // This is a singleton, we need to execute it only once
      if (!div) {
        return;
      }

      container.style.cssText = "position:absolute;left:-11111px;width:60px;" + "margin-top:1px;padding:0;border:0";
      div.style.cssText = "position:relative;display:block;box-sizing:border-box;overflow:scroll;" + "margin:auto;border:1px;padding:1px;" + "width:60%;top:1%";
      documentElement.appendChild(container).appendChild(div);
      var divStyle = window.getComputedStyle(div);
      pixelPositionVal = divStyle.top !== "1%"; // Support: Android 4.0 - 4.3 only, Firefox <=3 - 44

      reliableMarginLeftVal = roundPixelMeasures(divStyle.marginLeft) === 12; // Support: Android 4.0 - 4.3 only, Safari <=9.1 - 10.1, iOS <=7.0 - 9.3
      // Some styles come back with percentage values, even though they shouldn't

      div.style.right = "60%";
      pixelBoxStylesVal = roundPixelMeasures(divStyle.right) === 36; // Support: IE 9 - 11 only
      // Detect misreporting of content dimensions for box-sizing:border-box elements

      boxSizingReliableVal = roundPixelMeasures(divStyle.width) === 36; // Support: IE 9 only
      // Detect overflow:scroll screwiness (gh-3699)

      div.style.position = "absolute";
      scrollboxSizeVal = div.offsetWidth === 36 || "absolute";
      documentElement.removeChild(container); // Nullify the div so it wouldn't be stored in the memory and
      // it will also be a sign that checks already performed

      div = null;
    }

    function roundPixelMeasures(measure) {
      return Math.round(parseFloat(measure));
    }

    var pixelPositionVal,
        boxSizingReliableVal,
        scrollboxSizeVal,
        pixelBoxStylesVal,
        reliableMarginLeftVal,
        container = document.createElement("div"),
        div = document.createElement("div"); // Finish early in limited (non-browser) environments

    if (!div.style) {
      return;
    } // Support: IE <=9 - 11 only
    // Style of cloned element affects source element cloned (#8908)


    div.style.backgroundClip = "content-box";
    div.cloneNode(true).style.backgroundClip = "";
    support.clearCloneStyle = div.style.backgroundClip === "content-box";
    jQuery.extend(support, {
      boxSizingReliable: function () {
        computeStyleTests();
        return boxSizingReliableVal;
      },
      pixelBoxStyles: function () {
        computeStyleTests();
        return pixelBoxStylesVal;
      },
      pixelPosition: function () {
        computeStyleTests();
        return pixelPositionVal;
      },
      reliableMarginLeft: function () {
        computeStyleTests();
        return reliableMarginLeftVal;
      },
      scrollboxSize: function () {
        computeStyleTests();
        return scrollboxSizeVal;
      }
    });
  })();

  function curCSS(elem, name, computed) {
    var width,
        minWidth,
        maxWidth,
        ret,
        // Support: Firefox 51+
    // Retrieving style before computed somehow
    // fixes an issue with getting wrong values
    // on detached elements
    style = elem.style;
    computed = computed || getStyles(elem); // getPropertyValue is needed for:
    //   .css('filter') (IE 9 only, #12537)
    //   .css('--customProperty) (#3144)

    if (computed) {
      ret = computed.getPropertyValue(name) || computed[name];

      if (ret === "" && !jQuery.contains(elem.ownerDocument, elem)) {
        ret = jQuery.style(elem, name);
      } // A tribute to the "awesome hack by Dean Edwards"
      // Android Browser returns percentage for some values,
      // but width seems to be reliably pixels.
      // This is against the CSSOM draft spec:
      // https://drafts.csswg.org/cssom/#resolved-values


      if (!support.pixelBoxStyles() && rnumnonpx.test(ret) && rboxStyle.test(name)) {
        // Remember the original values
        width = style.width;
        minWidth = style.minWidth;
        maxWidth = style.maxWidth; // Put in the new values to get a computed value out

        style.minWidth = style.maxWidth = style.width = ret;
        ret = computed.width; // Revert the changed values

        style.width = width;
        style.minWidth = minWidth;
        style.maxWidth = maxWidth;
      }
    }

    return ret !== undefined ? // Support: IE <=9 - 11 only
    // IE returns zIndex value as an integer.
    ret + "" : ret;
  }

  function addGetHookIf(conditionFn, hookFn) {
    // Define the hook, we'll check on the first run if it's really needed.
    return {
      get: function () {
        if (conditionFn()) {
          // Hook not needed (or it's not possible to use it due
          // to missing dependency), remove it.
          delete this.get;
          return;
        } // Hook needed; redefine it so that the support test is not executed again.


        return (this.get = hookFn).apply(this, arguments);
      }
    };
  }

  var // Swappable if display is none or starts with table
  // except "table", "table-cell", or "table-caption"
  // See here for display values: https://developer.mozilla.org/en-US/docs/CSS/display
  rdisplayswap = /^(none|table(?!-c[ea]).+)/,
      rcustomProp = /^--/,
      cssShow = {
    position: "absolute",
    visibility: "hidden",
    display: "block"
  },
      cssNormalTransform = {
    letterSpacing: "0",
    fontWeight: "400"
  },
      cssPrefixes = ["Webkit", "Moz", "ms"],
      emptyStyle = document.createElement("div").style; // Return a css property mapped to a potentially vendor prefixed property

  function vendorPropName(name) {
    // Shortcut for names that are not vendor prefixed
    if (name in emptyStyle) {
      return name;
    } // Check for vendor prefixed names


    var capName = name[0].toUpperCase() + name.slice(1),
        i = cssPrefixes.length;

    while (i--) {
      name = cssPrefixes[i] + capName;

      if (name in emptyStyle) {
        return name;
      }
    }
  } // Return a property mapped along what jQuery.cssProps suggests or to
  // a vendor prefixed property.


  function finalPropName(name) {
    var ret = jQuery.cssProps[name];

    if (!ret) {
      ret = jQuery.cssProps[name] = vendorPropName(name) || name;
    }

    return ret;
  }

  function setPositiveNumber(elem, value, subtract) {
    // Any relative (+/-) values have already been
    // normalized at this point
    var matches = rcssNum.exec(value);
    return matches ? // Guard against undefined "subtract", e.g., when used as in cssHooks
    Math.max(0, matches[2] - (subtract || 0)) + (matches[3] || "px") : value;
  }

  function boxModelAdjustment(elem, dimension, box, isBorderBox, styles, computedVal) {
    var i = dimension === "width" ? 1 : 0,
        extra = 0,
        delta = 0; // Adjustment may not be necessary

    if (box === (isBorderBox ? "border" : "content")) {
      return 0;
    }

    for (; i < 4; i += 2) {
      // Both box models exclude margin
      if (box === "margin") {
        delta += jQuery.css(elem, box + cssExpand[i], true, styles);
      } // If we get here with a content-box, we're seeking "padding" or "border" or "margin"


      if (!isBorderBox) {
        // Add padding
        delta += jQuery.css(elem, "padding" + cssExpand[i], true, styles); // For "border" or "margin", add border

        if (box !== "padding") {
          delta += jQuery.css(elem, "border" + cssExpand[i] + "Width", true, styles); // But still keep track of it otherwise
        } else {
          extra += jQuery.css(elem, "border" + cssExpand[i] + "Width", true, styles);
        } // If we get here with a border-box (content + padding + border), we're seeking "content" or
        // "padding" or "margin"

      } else {
        // For "content", subtract padding
        if (box === "content") {
          delta -= jQuery.css(elem, "padding" + cssExpand[i], true, styles);
        } // For "content" or "padding", subtract border


        if (box !== "margin") {
          delta -= jQuery.css(elem, "border" + cssExpand[i] + "Width", true, styles);
        }
      }
    } // Account for positive content-box scroll gutter when requested by providing computedVal


    if (!isBorderBox && computedVal >= 0) {
      // offsetWidth/offsetHeight is a rounded sum of content, padding, scroll gutter, and border
      // Assuming integer scroll gutter, subtract the rest and round down
      delta += Math.max(0, Math.ceil(elem["offset" + dimension[0].toUpperCase() + dimension.slice(1)] - computedVal - delta - extra - 0.5));
    }

    return delta;
  }

  function getWidthOrHeight(elem, dimension, extra) {
    // Start with computed style
    var styles = getStyles(elem),
        val = curCSS(elem, dimension, styles),
        isBorderBox = jQuery.css(elem, "boxSizing", false, styles) === "border-box",
        valueIsBorderBox = isBorderBox; // Support: Firefox <=54
    // Return a confounding non-pixel value or feign ignorance, as appropriate.

    if (rnumnonpx.test(val)) {
      if (!extra) {
        return val;
      }

      val = "auto";
    } // Check for style in case a browser which returns unreliable values
    // for getComputedStyle silently falls back to the reliable elem.style


    valueIsBorderBox = valueIsBorderBox && (support.boxSizingReliable() || val === elem.style[dimension]); // Fall back to offsetWidth/offsetHeight when value is "auto"
    // This happens for inline elements with no explicit setting (gh-3571)
    // Support: Android <=4.1 - 4.3 only
    // Also use offsetWidth/offsetHeight for misreported inline dimensions (gh-3602)

    if (val === "auto" || !parseFloat(val) && jQuery.css(elem, "display", false, styles) === "inline") {
      val = elem["offset" + dimension[0].toUpperCase() + dimension.slice(1)]; // offsetWidth/offsetHeight provide border-box values

      valueIsBorderBox = true;
    } // Normalize "" and auto


    val = parseFloat(val) || 0; // Adjust for the element's box model

    return val + boxModelAdjustment(elem, dimension, extra || (isBorderBox ? "border" : "content"), valueIsBorderBox, styles, // Provide the current computed size to request scroll gutter calculation (gh-3589)
    val) + "px";
  }

  jQuery.extend({
    // Add in style property hooks for overriding the default
    // behavior of getting and setting a style property
    cssHooks: {
      opacity: {
        get: function (elem, computed) {
          if (computed) {
            // We should always get a number back from opacity
            var ret = curCSS(elem, "opacity");
            return ret === "" ? "1" : ret;
          }
        }
      }
    },
    // Don't automatically add "px" to these possibly-unitless properties
    cssNumber: {
      "animationIterationCount": true,
      "columnCount": true,
      "fillOpacity": true,
      "flexGrow": true,
      "flexShrink": true,
      "fontWeight": true,
      "lineHeight": true,
      "opacity": true,
      "order": true,
      "orphans": true,
      "widows": true,
      "zIndex": true,
      "zoom": true
    },
    // Add in properties whose names you wish to fix before
    // setting or getting the value
    cssProps: {},
    // Get and set the style property on a DOM Node
    style: function (elem, name, value, extra) {
      // Don't set styles on text and comment nodes
      if (!elem || elem.nodeType === 3 || elem.nodeType === 8 || !elem.style) {
        return;
      } // Make sure that we're working with the right name


      var ret,
          type,
          hooks,
          origName = camelCase(name),
          isCustomProp = rcustomProp.test(name),
          style = elem.style; // Make sure that we're working with the right name. We don't
      // want to query the value if it is a CSS custom property
      // since they are user-defined.

      if (!isCustomProp) {
        name = finalPropName(origName);
      } // Gets hook for the prefixed version, then unprefixed version


      hooks = jQuery.cssHooks[name] || jQuery.cssHooks[origName]; // Check if we're setting a value

      if (value !== undefined) {
        type = typeof value; // Convert "+=" or "-=" to relative numbers (#7345)

        if (type === "string" && (ret = rcssNum.exec(value)) && ret[1]) {
          value = adjustCSS(elem, name, ret); // Fixes bug #9237

          type = "number";
        } // Make sure that null and NaN values aren't set (#7116)


        if (value == null || value !== value) {
          return;
        } // If a number was passed in, add the unit (except for certain CSS properties)


        if (type === "number") {
          value += ret && ret[3] || (jQuery.cssNumber[origName] ? "" : "px");
        } // background-* props affect original clone's values


        if (!support.clearCloneStyle && value === "" && name.indexOf("background") === 0) {
          style[name] = "inherit";
        } // If a hook was provided, use that value, otherwise just set the specified value


        if (!hooks || !("set" in hooks) || (value = hooks.set(elem, value, extra)) !== undefined) {
          if (isCustomProp) {
            style.setProperty(name, value);
          } else {
            style[name] = value;
          }
        }
      } else {
        // If a hook was provided get the non-computed value from there
        if (hooks && "get" in hooks && (ret = hooks.get(elem, false, extra)) !== undefined) {
          return ret;
        } // Otherwise just get the value from the style object


        return style[name];
      }
    },
    css: function (elem, name, extra, styles) {
      var val,
          num,
          hooks,
          origName = camelCase(name),
          isCustomProp = rcustomProp.test(name); // Make sure that we're working with the right name. We don't
      // want to modify the value if it is a CSS custom property
      // since they are user-defined.

      if (!isCustomProp) {
        name = finalPropName(origName);
      } // Try prefixed name followed by the unprefixed name


      hooks = jQuery.cssHooks[name] || jQuery.cssHooks[origName]; // If a hook was provided get the computed value from there

      if (hooks && "get" in hooks) {
        val = hooks.get(elem, true, extra);
      } // Otherwise, if a way to get the computed value exists, use that


      if (val === undefined) {
        val = curCSS(elem, name, styles);
      } // Convert "normal" to computed value


      if (val === "normal" && name in cssNormalTransform) {
        val = cssNormalTransform[name];
      } // Make numeric if forced or a qualifier was provided and val looks numeric


      if (extra === "" || extra) {
        num = parseFloat(val);
        return extra === true || isFinite(num) ? num || 0 : val;
      }

      return val;
    }
  });
  jQuery.each(["height", "width"], function (i, dimension) {
    jQuery.cssHooks[dimension] = {
      get: function (elem, computed, extra) {
        if (computed) {
          // Certain elements can have dimension info if we invisibly show them
          // but it must have a current display style that would benefit
          return rdisplayswap.test(jQuery.css(elem, "display")) && ( // Support: Safari 8+
          // Table columns in Safari have non-zero offsetWidth & zero
          // getBoundingClientRect().width unless display is changed.
          // Support: IE <=11 only
          // Running getBoundingClientRect on a disconnected node
          // in IE throws an error.
          !elem.getClientRects().length || !elem.getBoundingClientRect().width) ? swap(elem, cssShow, function () {
            return getWidthOrHeight(elem, dimension, extra);
          }) : getWidthOrHeight(elem, dimension, extra);
        }
      },
      set: function (elem, value, extra) {
        var matches,
            styles = getStyles(elem),
            isBorderBox = jQuery.css(elem, "boxSizing", false, styles) === "border-box",
            subtract = extra && boxModelAdjustment(elem, dimension, extra, isBorderBox, styles); // Account for unreliable border-box dimensions by comparing offset* to computed and
        // faking a content-box to get border and padding (gh-3699)

        if (isBorderBox && support.scrollboxSize() === styles.position) {
          subtract -= Math.ceil(elem["offset" + dimension[0].toUpperCase() + dimension.slice(1)] - parseFloat(styles[dimension]) - boxModelAdjustment(elem, dimension, "border", false, styles) - 0.5);
        } // Convert to pixels if value adjustment is needed


        if (subtract && (matches = rcssNum.exec(value)) && (matches[3] || "px") !== "px") {
          elem.style[dimension] = value;
          value = jQuery.css(elem, dimension);
        }

        return setPositiveNumber(elem, value, subtract);
      }
    };
  });
  jQuery.cssHooks.marginLeft = addGetHookIf(support.reliableMarginLeft, function (elem, computed) {
    if (computed) {
      return (parseFloat(curCSS(elem, "marginLeft")) || elem.getBoundingClientRect().left - swap(elem, {
        marginLeft: 0
      }, function () {
        return elem.getBoundingClientRect().left;
      })) + "px";
    }
  }); // These hooks are used by animate to expand properties

  jQuery.each({
    margin: "",
    padding: "",
    border: "Width"
  }, function (prefix, suffix) {
    jQuery.cssHooks[prefix + suffix] = {
      expand: function (value) {
        var i = 0,
            expanded = {},
            // Assumes a single number if not a string
        parts = typeof value === "string" ? value.split(" ") : [value];

        for (; i < 4; i++) {
          expanded[prefix + cssExpand[i] + suffix] = parts[i] || parts[i - 2] || parts[0];
        }

        return expanded;
      }
    };

    if (prefix !== "margin") {
      jQuery.cssHooks[prefix + suffix].set = setPositiveNumber;
    }
  });
  jQuery.fn.extend({
    css: function (name, value) {
      return access(this, function (elem, name, value) {
        var styles,
            len,
            map = {},
            i = 0;

        if (Array.isArray(name)) {
          styles = getStyles(elem);
          len = name.length;

          for (; i < len; i++) {
            map[name[i]] = jQuery.css(elem, name[i], false, styles);
          }

          return map;
        }

        return value !== undefined ? jQuery.style(elem, name, value) : jQuery.css(elem, name);
      }, name, value, arguments.length > 1);
    }
  });

  function Tween(elem, options, prop, end, easing) {
    return new Tween.prototype.init(elem, options, prop, end, easing);
  }

  jQuery.Tween = Tween;
  Tween.prototype = {
    constructor: Tween,
    init: function (elem, options, prop, end, easing, unit) {
      this.elem = elem;
      this.prop = prop;
      this.easing = easing || jQuery.easing._default;
      this.options = options;
      this.start = this.now = this.cur();
      this.end = end;
      this.unit = unit || (jQuery.cssNumber[prop] ? "" : "px");
    },
    cur: function () {
      var hooks = Tween.propHooks[this.prop];
      return hooks && hooks.get ? hooks.get(this) : Tween.propHooks._default.get(this);
    },
    run: function (percent) {
      var eased,
          hooks = Tween.propHooks[this.prop];

      if (this.options.duration) {
        this.pos = eased = jQuery.easing[this.easing](percent, this.options.duration * percent, 0, 1, this.options.duration);
      } else {
        this.pos = eased = percent;
      }

      this.now = (this.end - this.start) * eased + this.start;

      if (this.options.step) {
        this.options.step.call(this.elem, this.now, this);
      }

      if (hooks && hooks.set) {
        hooks.set(this);
      } else {
        Tween.propHooks._default.set(this);
      }

      return this;
    }
  };
  Tween.prototype.init.prototype = Tween.prototype;
  Tween.propHooks = {
    _default: {
      get: function (tween) {
        var result; // Use a property on the element directly when it is not a DOM element,
        // or when there is no matching style property that exists.

        if (tween.elem.nodeType !== 1 || tween.elem[tween.prop] != null && tween.elem.style[tween.prop] == null) {
          return tween.elem[tween.prop];
        } // Passing an empty string as a 3rd parameter to .css will automatically
        // attempt a parseFloat and fallback to a string if the parse fails.
        // Simple values such as "10px" are parsed to Float;
        // complex values such as "rotate(1rad)" are returned as-is.


        result = jQuery.css(tween.elem, tween.prop, ""); // Empty strings, null, undefined and "auto" are converted to 0.

        return !result || result === "auto" ? 0 : result;
      },
      set: function (tween) {
        // Use step hook for back compat.
        // Use cssHook if its there.
        // Use .style if available and use plain properties where available.
        if (jQuery.fx.step[tween.prop]) {
          jQuery.fx.step[tween.prop](tween);
        } else if (tween.elem.nodeType === 1 && (tween.elem.style[jQuery.cssProps[tween.prop]] != null || jQuery.cssHooks[tween.prop])) {
          jQuery.style(tween.elem, tween.prop, tween.now + tween.unit);
        } else {
          tween.elem[tween.prop] = tween.now;
        }
      }
    }
  }; // Support: IE <=9 only
  // Panic based approach to setting things on disconnected nodes

  Tween.propHooks.scrollTop = Tween.propHooks.scrollLeft = {
    set: function (tween) {
      if (tween.elem.nodeType && tween.elem.parentNode) {
        tween.elem[tween.prop] = tween.now;
      }
    }
  };
  jQuery.easing = {
    linear: function (p) {
      return p;
    },
    swing: function (p) {
      return 0.5 - Math.cos(p * Math.PI) / 2;
    },
    _default: "swing"
  };
  jQuery.fx = Tween.prototype.init; // Back compat <1.8 extension point

  jQuery.fx.step = {};
  var fxNow,
      inProgress,
      rfxtypes = /^(?:toggle|show|hide)$/,
      rrun = /queueHooks$/;

  function schedule() {
    if (inProgress) {
      if (document.hidden === false && window.requestAnimationFrame) {
        window.requestAnimationFrame(schedule);
      } else {
        window.setTimeout(schedule, jQuery.fx.interval);
      }

      jQuery.fx.tick();
    }
  } // Animations created synchronously will run synchronously


  function createFxNow() {
    window.setTimeout(function () {
      fxNow = undefined;
    });
    return fxNow = Date.now();
  } // Generate parameters to create a standard animation


  function genFx(type, includeWidth) {
    var which,
        i = 0,
        attrs = {
      height: type
    }; // If we include width, step value is 1 to do all cssExpand values,
    // otherwise step value is 2 to skip over Left and Right

    includeWidth = includeWidth ? 1 : 0;

    for (; i < 4; i += 2 - includeWidth) {
      which = cssExpand[i];
      attrs["margin" + which] = attrs["padding" + which] = type;
    }

    if (includeWidth) {
      attrs.opacity = attrs.width = type;
    }

    return attrs;
  }

  function createTween(value, prop, animation) {
    var tween,
        collection = (Animation.tweeners[prop] || []).concat(Animation.tweeners["*"]),
        index = 0,
        length = collection.length;

    for (; index < length; index++) {
      if (tween = collection[index].call(animation, prop, value)) {
        // We're done with this property
        return tween;
      }
    }
  }

  function defaultPrefilter(elem, props, opts) {
    var prop,
        value,
        toggle,
        hooks,
        oldfire,
        propTween,
        restoreDisplay,
        display,
        isBox = "width" in props || "height" in props,
        anim = this,
        orig = {},
        style = elem.style,
        hidden = elem.nodeType && isHiddenWithinTree(elem),
        dataShow = dataPriv.get(elem, "fxshow"); // Queue-skipping animations hijack the fx hooks

    if (!opts.queue) {
      hooks = jQuery._queueHooks(elem, "fx");

      if (hooks.unqueued == null) {
        hooks.unqueued = 0;
        oldfire = hooks.empty.fire;

        hooks.empty.fire = function () {
          if (!hooks.unqueued) {
            oldfire();
          }
        };
      }

      hooks.unqueued++;
      anim.always(function () {
        // Ensure the complete handler is called before this completes
        anim.always(function () {
          hooks.unqueued--;

          if (!jQuery.queue(elem, "fx").length) {
            hooks.empty.fire();
          }
        });
      });
    } // Detect show/hide animations


    for (prop in props) {
      value = props[prop];

      if (rfxtypes.test(value)) {
        delete props[prop];
        toggle = toggle || value === "toggle";

        if (value === (hidden ? "hide" : "show")) {
          // Pretend to be hidden if this is a "show" and
          // there is still data from a stopped show/hide
          if (value === "show" && dataShow && dataShow[prop] !== undefined) {
            hidden = true; // Ignore all other no-op show/hide data
          } else {
            continue;
          }
        }

        orig[prop] = dataShow && dataShow[prop] || jQuery.style(elem, prop);
      }
    } // Bail out if this is a no-op like .hide().hide()


    propTween = !jQuery.isEmptyObject(props);

    if (!propTween && jQuery.isEmptyObject(orig)) {
      return;
    } // Restrict "overflow" and "display" styles during box animations


    if (isBox && elem.nodeType === 1) {
      // Support: IE <=9 - 11, Edge 12 - 15
      // Record all 3 overflow attributes because IE does not infer the shorthand
      // from identically-valued overflowX and overflowY and Edge just mirrors
      // the overflowX value there.
      opts.overflow = [style.overflow, style.overflowX, style.overflowY]; // Identify a display type, preferring old show/hide data over the CSS cascade

      restoreDisplay = dataShow && dataShow.display;

      if (restoreDisplay == null) {
        restoreDisplay = dataPriv.get(elem, "display");
      }

      display = jQuery.css(elem, "display");

      if (display === "none") {
        if (restoreDisplay) {
          display = restoreDisplay;
        } else {
          // Get nonempty value(s) by temporarily forcing visibility
          showHide([elem], true);
          restoreDisplay = elem.style.display || restoreDisplay;
          display = jQuery.css(elem, "display");
          showHide([elem]);
        }
      } // Animate inline elements as inline-block


      if (display === "inline" || display === "inline-block" && restoreDisplay != null) {
        if (jQuery.css(elem, "float") === "none") {
          // Restore the original display value at the end of pure show/hide animations
          if (!propTween) {
            anim.done(function () {
              style.display = restoreDisplay;
            });

            if (restoreDisplay == null) {
              display = style.display;
              restoreDisplay = display === "none" ? "" : display;
            }
          }

          style.display = "inline-block";
        }
      }
    }

    if (opts.overflow) {
      style.overflow = "hidden";
      anim.always(function () {
        style.overflow = opts.overflow[0];
        style.overflowX = opts.overflow[1];
        style.overflowY = opts.overflow[2];
      });
    } // Implement show/hide animations


    propTween = false;

    for (prop in orig) {
      // General show/hide setup for this element animation
      if (!propTween) {
        if (dataShow) {
          if ("hidden" in dataShow) {
            hidden = dataShow.hidden;
          }
        } else {
          dataShow = dataPriv.access(elem, "fxshow", {
            display: restoreDisplay
          });
        } // Store hidden/visible for toggle so `.stop().toggle()` "reverses"


        if (toggle) {
          dataShow.hidden = !hidden;
        } // Show elements before animating them


        if (hidden) {
          showHide([elem], true);
        }
        /* eslint-disable no-loop-func */


        anim.done(function () {
          /* eslint-enable no-loop-func */
          // The final step of a "hide" animation is actually hiding the element
          if (!hidden) {
            showHide([elem]);
          }

          dataPriv.remove(elem, "fxshow");

          for (prop in orig) {
            jQuery.style(elem, prop, orig[prop]);
          }
        });
      } // Per-property setup


      propTween = createTween(hidden ? dataShow[prop] : 0, prop, anim);

      if (!(prop in dataShow)) {
        dataShow[prop] = propTween.start;

        if (hidden) {
          propTween.end = propTween.start;
          propTween.start = 0;
        }
      }
    }
  }

  function propFilter(props, specialEasing) {
    var index, name, easing, value, hooks; // camelCase, specialEasing and expand cssHook pass

    for (index in props) {
      name = camelCase(index);
      easing = specialEasing[name];
      value = props[index];

      if (Array.isArray(value)) {
        easing = value[1];
        value = props[index] = value[0];
      }

      if (index !== name) {
        props[name] = value;
        delete props[index];
      }

      hooks = jQuery.cssHooks[name];

      if (hooks && "expand" in hooks) {
        value = hooks.expand(value);
        delete props[name]; // Not quite $.extend, this won't overwrite existing keys.
        // Reusing 'index' because we have the correct "name"

        for (index in value) {
          if (!(index in props)) {
            props[index] = value[index];
            specialEasing[index] = easing;
          }
        }
      } else {
        specialEasing[name] = easing;
      }
    }
  }

  function Animation(elem, properties, options) {
    var result,
        stopped,
        index = 0,
        length = Animation.prefilters.length,
        deferred = jQuery.Deferred().always(function () {
      // Don't match elem in the :animated selector
      delete tick.elem;
    }),
        tick = function () {
      if (stopped) {
        return false;
      }

      var currentTime = fxNow || createFxNow(),
          remaining = Math.max(0, animation.startTime + animation.duration - currentTime),
          // Support: Android 2.3 only
      // Archaic crash bug won't allow us to use `1 - ( 0.5 || 0 )` (#12497)
      temp = remaining / animation.duration || 0,
          percent = 1 - temp,
          index = 0,
          length = animation.tweens.length;

      for (; index < length; index++) {
        animation.tweens[index].run(percent);
      }

      deferred.notifyWith(elem, [animation, percent, remaining]); // If there's more to do, yield

      if (percent < 1 && length) {
        return remaining;
      } // If this was an empty animation, synthesize a final progress notification


      if (!length) {
        deferred.notifyWith(elem, [animation, 1, 0]);
      } // Resolve the animation and report its conclusion


      deferred.resolveWith(elem, [animation]);
      return false;
    },
        animation = deferred.promise({
      elem: elem,
      props: jQuery.extend({}, properties),
      opts: jQuery.extend(true, {
        specialEasing: {},
        easing: jQuery.easing._default
      }, options),
      originalProperties: properties,
      originalOptions: options,
      startTime: fxNow || createFxNow(),
      duration: options.duration,
      tweens: [],
      createTween: function (prop, end) {
        var tween = jQuery.Tween(elem, animation.opts, prop, end, animation.opts.specialEasing[prop] || animation.opts.easing);
        animation.tweens.push(tween);
        return tween;
      },
      stop: function (gotoEnd) {
        var index = 0,
            // If we are going to the end, we want to run all the tweens
        // otherwise we skip this part
        length = gotoEnd ? animation.tweens.length : 0;

        if (stopped) {
          return this;
        }

        stopped = true;

        for (; index < length; index++) {
          animation.tweens[index].run(1);
        } // Resolve when we played the last frame; otherwise, reject


        if (gotoEnd) {
          deferred.notifyWith(elem, [animation, 1, 0]);
          deferred.resolveWith(elem, [animation, gotoEnd]);
        } else {
          deferred.rejectWith(elem, [animation, gotoEnd]);
        }

        return this;
      }
    }),
        props = animation.props;

    propFilter(props, animation.opts.specialEasing);

    for (; index < length; index++) {
      result = Animation.prefilters[index].call(animation, elem, props, animation.opts);

      if (result) {
        if (isFunction(result.stop)) {
          jQuery._queueHooks(animation.elem, animation.opts.queue).stop = result.stop.bind(result);
        }

        return result;
      }
    }

    jQuery.map(props, createTween, animation);

    if (isFunction(animation.opts.start)) {
      animation.opts.start.call(elem, animation);
    } // Attach callbacks from options


    animation.progress(animation.opts.progress).done(animation.opts.done, animation.opts.complete).fail(animation.opts.fail).always(animation.opts.always);
    jQuery.fx.timer(jQuery.extend(tick, {
      elem: elem,
      anim: animation,
      queue: animation.opts.queue
    }));
    return animation;
  }

  jQuery.Animation = jQuery.extend(Animation, {
    tweeners: {
      "*": [function (prop, value) {
        var tween = this.createTween(prop, value);
        adjustCSS(tween.elem, prop, rcssNum.exec(value), tween);
        return tween;
      }]
    },
    tweener: function (props, callback) {
      if (isFunction(props)) {
        callback = props;
        props = ["*"];
      } else {
        props = props.match(rnothtmlwhite);
      }

      var prop,
          index = 0,
          length = props.length;

      for (; index < length; index++) {
        prop = props[index];
        Animation.tweeners[prop] = Animation.tweeners[prop] || [];
        Animation.tweeners[prop].unshift(callback);
      }
    },
    prefilters: [defaultPrefilter],
    prefilter: function (callback, prepend) {
      if (prepend) {
        Animation.prefilters.unshift(callback);
      } else {
        Animation.prefilters.push(callback);
      }
    }
  });

  jQuery.speed = function (speed, easing, fn) {
    var opt = speed && typeof speed === "object" ? jQuery.extend({}, speed) : {
      complete: fn || !fn && easing || isFunction(speed) && speed,
      duration: speed,
      easing: fn && easing || easing && !isFunction(easing) && easing
    }; // Go to the end state if fx are off

    if (jQuery.fx.off) {
      opt.duration = 0;
    } else {
      if (typeof opt.duration !== "number") {
        if (opt.duration in jQuery.fx.speeds) {
          opt.duration = jQuery.fx.speeds[opt.duration];
        } else {
          opt.duration = jQuery.fx.speeds._default;
        }
      }
    } // Normalize opt.queue - true/undefined/null -> "fx"


    if (opt.queue == null || opt.queue === true) {
      opt.queue = "fx";
    } // Queueing


    opt.old = opt.complete;

    opt.complete = function () {
      if (isFunction(opt.old)) {
        opt.old.call(this);
      }

      if (opt.queue) {
        jQuery.dequeue(this, opt.queue);
      }
    };

    return opt;
  };

  jQuery.fn.extend({
    fadeTo: function (speed, to, easing, callback) {
      // Show any hidden elements after setting opacity to 0
      return this.filter(isHiddenWithinTree).css("opacity", 0).show() // Animate to the value specified
      .end().animate({
        opacity: to
      }, speed, easing, callback);
    },
    animate: function (prop, speed, easing, callback) {
      var empty = jQuery.isEmptyObject(prop),
          optall = jQuery.speed(speed, easing, callback),
          doAnimation = function () {
        // Operate on a copy of prop so per-property easing won't be lost
        var anim = Animation(this, jQuery.extend({}, prop), optall); // Empty animations, or finishing resolves immediately

        if (empty || dataPriv.get(this, "finish")) {
          anim.stop(true);
        }
      };

      doAnimation.finish = doAnimation;
      return empty || optall.queue === false ? this.each(doAnimation) : this.queue(optall.queue, doAnimation);
    },
    stop: function (type, clearQueue, gotoEnd) {
      var stopQueue = function (hooks) {
        var stop = hooks.stop;
        delete hooks.stop;
        stop(gotoEnd);
      };

      if (typeof type !== "string") {
        gotoEnd = clearQueue;
        clearQueue = type;
        type = undefined;
      }

      if (clearQueue && type !== false) {
        this.queue(type || "fx", []);
      }

      return this.each(function () {
        var dequeue = true,
            index = type != null && type + "queueHooks",
            timers = jQuery.timers,
            data = dataPriv.get(this);

        if (index) {
          if (data[index] && data[index].stop) {
            stopQueue(data[index]);
          }
        } else {
          for (index in data) {
            if (data[index] && data[index].stop && rrun.test(index)) {
              stopQueue(data[index]);
            }
          }
        }

        for (index = timers.length; index--;) {
          if (timers[index].elem === this && (type == null || timers[index].queue === type)) {
            timers[index].anim.stop(gotoEnd);
            dequeue = false;
            timers.splice(index, 1);
          }
        } // Start the next in the queue if the last step wasn't forced.
        // Timers currently will call their complete callbacks, which
        // will dequeue but only if they were gotoEnd.


        if (dequeue || !gotoEnd) {
          jQuery.dequeue(this, type);
        }
      });
    },
    finish: function (type) {
      if (type !== false) {
        type = type || "fx";
      }

      return this.each(function () {
        var index,
            data = dataPriv.get(this),
            queue = data[type + "queue"],
            hooks = data[type + "queueHooks"],
            timers = jQuery.timers,
            length = queue ? queue.length : 0; // Enable finishing flag on private data

        data.finish = true; // Empty the queue first

        jQuery.queue(this, type, []);

        if (hooks && hooks.stop) {
          hooks.stop.call(this, true);
        } // Look for any active animations, and finish them


        for (index = timers.length; index--;) {
          if (timers[index].elem === this && timers[index].queue === type) {
            timers[index].anim.stop(true);
            timers.splice(index, 1);
          }
        } // Look for any animations in the old queue and finish them


        for (index = 0; index < length; index++) {
          if (queue[index] && queue[index].finish) {
            queue[index].finish.call(this);
          }
        } // Turn off finishing flag


        delete data.finish;
      });
    }
  });
  jQuery.each(["toggle", "show", "hide"], function (i, name) {
    var cssFn = jQuery.fn[name];

    jQuery.fn[name] = function (speed, easing, callback) {
      return speed == null || typeof speed === "boolean" ? cssFn.apply(this, arguments) : this.animate(genFx(name, true), speed, easing, callback);
    };
  }); // Generate shortcuts for custom animations

  jQuery.each({
    slideDown: genFx("show"),
    slideUp: genFx("hide"),
    slideToggle: genFx("toggle"),
    fadeIn: {
      opacity: "show"
    },
    fadeOut: {
      opacity: "hide"
    },
    fadeToggle: {
      opacity: "toggle"
    }
  }, function (name, props) {
    jQuery.fn[name] = function (speed, easing, callback) {
      return this.animate(props, speed, easing, callback);
    };
  });
  jQuery.timers = [];

  jQuery.fx.tick = function () {
    var timer,
        i = 0,
        timers = jQuery.timers;
    fxNow = Date.now();

    for (; i < timers.length; i++) {
      timer = timers[i]; // Run the timer and safely remove it when done (allowing for external removal)

      if (!timer() && timers[i] === timer) {
        timers.splice(i--, 1);
      }
    }

    if (!timers.length) {
      jQuery.fx.stop();
    }

    fxNow = undefined;
  };

  jQuery.fx.timer = function (timer) {
    jQuery.timers.push(timer);
    jQuery.fx.start();
  };

  jQuery.fx.interval = 13;

  jQuery.fx.start = function () {
    if (inProgress) {
      return;
    }

    inProgress = true;
    schedule();
  };

  jQuery.fx.stop = function () {
    inProgress = null;
  };

  jQuery.fx.speeds = {
    slow: 600,
    fast: 200,
    // Default speed
    _default: 400
  }; // Based off of the plugin by Clint Helfers, with permission.
  // https://web.archive.org/web/20100324014747/http://blindsignals.com/index.php/2009/07/jquery-delay/

  jQuery.fn.delay = function (time, type) {
    time = jQuery.fx ? jQuery.fx.speeds[time] || time : time;
    type = type || "fx";
    return this.queue(type, function (next, hooks) {
      var timeout = window.setTimeout(next, time);

      hooks.stop = function () {
        window.clearTimeout(timeout);
      };
    });
  };

  (function () {
    var input = document.createElement("input"),
        select = document.createElement("select"),
        opt = select.appendChild(document.createElement("option"));
    input.type = "checkbox"; // Support: Android <=4.3 only
    // Default value for a checkbox should be "on"

    support.checkOn = input.value !== ""; // Support: IE <=11 only
    // Must access selectedIndex to make default options select

    support.optSelected = opt.selected; // Support: IE <=11 only
    // An input loses its value after becoming a radio

    input = document.createElement("input");
    input.value = "t";
    input.type = "radio";
    support.radioValue = input.value === "t";
  })();

  var boolHook,
      attrHandle = jQuery.expr.attrHandle;
  jQuery.fn.extend({
    attr: function (name, value) {
      return access(this, jQuery.attr, name, value, arguments.length > 1);
    },
    removeAttr: function (name) {
      return this.each(function () {
        jQuery.removeAttr(this, name);
      });
    }
  });
  jQuery.extend({
    attr: function (elem, name, value) {
      var ret,
          hooks,
          nType = elem.nodeType; // Don't get/set attributes on text, comment and attribute nodes

      if (nType === 3 || nType === 8 || nType === 2) {
        return;
      } // Fallback to prop when attributes are not supported


      if (typeof elem.getAttribute === "undefined") {
        return jQuery.prop(elem, name, value);
      } // Attribute hooks are determined by the lowercase version
      // Grab necessary hook if one is defined


      if (nType !== 1 || !jQuery.isXMLDoc(elem)) {
        hooks = jQuery.attrHooks[name.toLowerCase()] || (jQuery.expr.match.bool.test(name) ? boolHook : undefined);
      }

      if (value !== undefined) {
        if (value === null) {
          jQuery.removeAttr(elem, name);
          return;
        }

        if (hooks && "set" in hooks && (ret = hooks.set(elem, value, name)) !== undefined) {
          return ret;
        }

        elem.setAttribute(name, value + "");
        return value;
      }

      if (hooks && "get" in hooks && (ret = hooks.get(elem, name)) !== null) {
        return ret;
      }

      ret = jQuery.find.attr(elem, name); // Non-existent attributes return null, we normalize to undefined

      return ret == null ? undefined : ret;
    },
    attrHooks: {
      type: {
        set: function (elem, value) {
          if (!support.radioValue && value === "radio" && nodeName(elem, "input")) {
            var val = elem.value;
            elem.setAttribute("type", value);

            if (val) {
              elem.value = val;
            }

            return value;
          }
        }
      }
    },
    removeAttr: function (elem, value) {
      var name,
          i = 0,
          // Attribute names can contain non-HTML whitespace characters
      // https://html.spec.whatwg.org/multipage/syntax.html#attributes-2
      attrNames = value && value.match(rnothtmlwhite);

      if (attrNames && elem.nodeType === 1) {
        while (name = attrNames[i++]) {
          elem.removeAttribute(name);
        }
      }
    }
  }); // Hooks for boolean attributes

  boolHook = {
    set: function (elem, value, name) {
      if (value === false) {
        // Remove boolean attributes when set to false
        jQuery.removeAttr(elem, name);
      } else {
        elem.setAttribute(name, name);
      }

      return name;
    }
  };
  jQuery.each(jQuery.expr.match.bool.source.match(/\w+/g), function (i, name) {
    var getter = attrHandle[name] || jQuery.find.attr;

    attrHandle[name] = function (elem, name, isXML) {
      var ret,
          handle,
          lowercaseName = name.toLowerCase();

      if (!isXML) {
        // Avoid an infinite loop by temporarily removing this function from the getter
        handle = attrHandle[lowercaseName];
        attrHandle[lowercaseName] = ret;
        ret = getter(elem, name, isXML) != null ? lowercaseName : null;
        attrHandle[lowercaseName] = handle;
      }

      return ret;
    };
  });
  var rfocusable = /^(?:input|select|textarea|button)$/i,
      rclickable = /^(?:a|area)$/i;
  jQuery.fn.extend({
    prop: function (name, value) {
      return access(this, jQuery.prop, name, value, arguments.length > 1);
    },
    removeProp: function (name) {
      return this.each(function () {
        delete this[jQuery.propFix[name] || name];
      });
    }
  });
  jQuery.extend({
    prop: function (elem, name, value) {
      var ret,
          hooks,
          nType = elem.nodeType; // Don't get/set properties on text, comment and attribute nodes

      if (nType === 3 || nType === 8 || nType === 2) {
        return;
      }

      if (nType !== 1 || !jQuery.isXMLDoc(elem)) {
        // Fix name and attach hooks
        name = jQuery.propFix[name] || name;
        hooks = jQuery.propHooks[name];
      }

      if (value !== undefined) {
        if (hooks && "set" in hooks && (ret = hooks.set(elem, value, name)) !== undefined) {
          return ret;
        }

        return elem[name] = value;
      }

      if (hooks && "get" in hooks && (ret = hooks.get(elem, name)) !== null) {
        return ret;
      }

      return elem[name];
    },
    propHooks: {
      tabIndex: {
        get: function (elem) {
          // Support: IE <=9 - 11 only
          // elem.tabIndex doesn't always return the
          // correct value when it hasn't been explicitly set
          // https://web.archive.org/web/20141116233347/http://fluidproject.org/blog/2008/01/09/getting-setting-and-removing-tabindex-values-with-javascript/
          // Use proper attribute retrieval(#12072)
          var tabindex = jQuery.find.attr(elem, "tabindex");

          if (tabindex) {
            return parseInt(tabindex, 10);
          }

          if (rfocusable.test(elem.nodeName) || rclickable.test(elem.nodeName) && elem.href) {
            return 0;
          }

          return -1;
        }
      }
    },
    propFix: {
      "for": "htmlFor",
      "class": "className"
    }
  }); // Support: IE <=11 only
  // Accessing the selectedIndex property
  // forces the browser to respect setting selected
  // on the option
  // The getter ensures a default option is selected
  // when in an optgroup
  // eslint rule "no-unused-expressions" is disabled for this code
  // since it considers such accessions noop

  if (!support.optSelected) {
    jQuery.propHooks.selected = {
      get: function (elem) {
        /* eslint no-unused-expressions: "off" */
        var parent = elem.parentNode;

        if (parent && parent.parentNode) {
          parent.parentNode.selectedIndex;
        }

        return null;
      },
      set: function (elem) {
        /* eslint no-unused-expressions: "off" */
        var parent = elem.parentNode;

        if (parent) {
          parent.selectedIndex;

          if (parent.parentNode) {
            parent.parentNode.selectedIndex;
          }
        }
      }
    };
  }

  jQuery.each(["tabIndex", "readOnly", "maxLength", "cellSpacing", "cellPadding", "rowSpan", "colSpan", "useMap", "frameBorder", "contentEditable"], function () {
    jQuery.propFix[this.toLowerCase()] = this;
  }); // Strip and collapse whitespace according to HTML spec
  // https://infra.spec.whatwg.org/#strip-and-collapse-ascii-whitespace

  function stripAndCollapse(value) {
    var tokens = value.match(rnothtmlwhite) || [];
    return tokens.join(" ");
  }

  function getClass(elem) {
    return elem.getAttribute && elem.getAttribute("class") || "";
  }

  function classesToArray(value) {
    if (Array.isArray(value)) {
      return value;
    }

    if (typeof value === "string") {
      return value.match(rnothtmlwhite) || [];
    }

    return [];
  }

  jQuery.fn.extend({
    addClass: function (value) {
      var classes,
          elem,
          cur,
          curValue,
          clazz,
          j,
          finalValue,
          i = 0;

      if (isFunction(value)) {
        return this.each(function (j) {
          jQuery(this).addClass(value.call(this, j, getClass(this)));
        });
      }

      classes = classesToArray(value);

      if (classes.length) {
        while (elem = this[i++]) {
          curValue = getClass(elem);
          cur = elem.nodeType === 1 && " " + stripAndCollapse(curValue) + " ";

          if (cur) {
            j = 0;

            while (clazz = classes[j++]) {
              if (cur.indexOf(" " + clazz + " ") < 0) {
                cur += clazz + " ";
              }
            } // Only assign if different to avoid unneeded rendering.


            finalValue = stripAndCollapse(cur);

            if (curValue !== finalValue) {
              elem.setAttribute("class", finalValue);
            }
          }
        }
      }

      return this;
    },
    removeClass: function (value) {
      var classes,
          elem,
          cur,
          curValue,
          clazz,
          j,
          finalValue,
          i = 0;

      if (isFunction(value)) {
        return this.each(function (j) {
          jQuery(this).removeClass(value.call(this, j, getClass(this)));
        });
      }

      if (!arguments.length) {
        return this.attr("class", "");
      }

      classes = classesToArray(value);

      if (classes.length) {
        while (elem = this[i++]) {
          curValue = getClass(elem); // This expression is here for better compressibility (see addClass)

          cur = elem.nodeType === 1 && " " + stripAndCollapse(curValue) + " ";

          if (cur) {
            j = 0;

            while (clazz = classes[j++]) {
              // Remove *all* instances
              while (cur.indexOf(" " + clazz + " ") > -1) {
                cur = cur.replace(" " + clazz + " ", " ");
              }
            } // Only assign if different to avoid unneeded rendering.


            finalValue = stripAndCollapse(cur);

            if (curValue !== finalValue) {
              elem.setAttribute("class", finalValue);
            }
          }
        }
      }

      return this;
    },
    toggleClass: function (value, stateVal) {
      var type = typeof value,
          isValidValue = type === "string" || Array.isArray(value);

      if (typeof stateVal === "boolean" && isValidValue) {
        return stateVal ? this.addClass(value) : this.removeClass(value);
      }

      if (isFunction(value)) {
        return this.each(function (i) {
          jQuery(this).toggleClass(value.call(this, i, getClass(this), stateVal), stateVal);
        });
      }

      return this.each(function () {
        var className, i, self, classNames;

        if (isValidValue) {
          // Toggle individual class names
          i = 0;
          self = jQuery(this);
          classNames = classesToArray(value);

          while (className = classNames[i++]) {
            // Check each className given, space separated list
            if (self.hasClass(className)) {
              self.removeClass(className);
            } else {
              self.addClass(className);
            }
          } // Toggle whole class name

        } else if (value === undefined || type === "boolean") {
          className = getClass(this);

          if (className) {
            // Store className if set
            dataPriv.set(this, "__className__", className);
          } // If the element has a class name or if we're passed `false`,
          // then remove the whole classname (if there was one, the above saved it).
          // Otherwise bring back whatever was previously saved (if anything),
          // falling back to the empty string if nothing was stored.


          if (this.setAttribute) {
            this.setAttribute("class", className || value === false ? "" : dataPriv.get(this, "__className__") || "");
          }
        }
      });
    },
    hasClass: function (selector) {
      var className,
          elem,
          i = 0;
      className = " " + selector + " ";

      while (elem = this[i++]) {
        if (elem.nodeType === 1 && (" " + stripAndCollapse(getClass(elem)) + " ").indexOf(className) > -1) {
          return true;
        }
      }

      return false;
    }
  });
  var rreturn = /\r/g;
  jQuery.fn.extend({
    val: function (value) {
      var hooks,
          ret,
          valueIsFunction,
          elem = this[0];

      if (!arguments.length) {
        if (elem) {
          hooks = jQuery.valHooks[elem.type] || jQuery.valHooks[elem.nodeName.toLowerCase()];

          if (hooks && "get" in hooks && (ret = hooks.get(elem, "value")) !== undefined) {
            return ret;
          }

          ret = elem.value; // Handle most common string cases

          if (typeof ret === "string") {
            return ret.replace(rreturn, "");
          } // Handle cases where value is null/undef or number


          return ret == null ? "" : ret;
        }

        return;
      }

      valueIsFunction = isFunction(value);
      return this.each(function (i) {
        var val;

        if (this.nodeType !== 1) {
          return;
        }

        if (valueIsFunction) {
          val = value.call(this, i, jQuery(this).val());
        } else {
          val = value;
        } // Treat null/undefined as ""; convert numbers to string


        if (val == null) {
          val = "";
        } else if (typeof val === "number") {
          val += "";
        } else if (Array.isArray(val)) {
          val = jQuery.map(val, function (value) {
            return value == null ? "" : value + "";
          });
        }

        hooks = jQuery.valHooks[this.type] || jQuery.valHooks[this.nodeName.toLowerCase()]; // If set returns undefined, fall back to normal setting

        if (!hooks || !("set" in hooks) || hooks.set(this, val, "value") === undefined) {
          this.value = val;
        }
      });
    }
  });
  jQuery.extend({
    valHooks: {
      option: {
        get: function (elem) {
          var val = jQuery.find.attr(elem, "value");
          return val != null ? val : // Support: IE <=10 - 11 only
          // option.text throws exceptions (#14686, #14858)
          // Strip and collapse whitespace
          // https://html.spec.whatwg.org/#strip-and-collapse-whitespace
          stripAndCollapse(jQuery.text(elem));
        }
      },
      select: {
        get: function (elem) {
          var value,
              option,
              i,
              options = elem.options,
              index = elem.selectedIndex,
              one = elem.type === "select-one",
              values = one ? null : [],
              max = one ? index + 1 : options.length;

          if (index < 0) {
            i = max;
          } else {
            i = one ? index : 0;
          } // Loop through all the selected options


          for (; i < max; i++) {
            option = options[i]; // Support: IE <=9 only
            // IE8-9 doesn't update selected after form reset (#2551)

            if ((option.selected || i === index) && // Don't return options that are disabled or in a disabled optgroup
            !option.disabled && (!option.parentNode.disabled || !nodeName(option.parentNode, "optgroup"))) {
              // Get the specific value for the option
              value = jQuery(option).val(); // We don't need an array for one selects

              if (one) {
                return value;
              } // Multi-Selects return an array


              values.push(value);
            }
          }

          return values;
        },
        set: function (elem, value) {
          var optionSet,
              option,
              options = elem.options,
              values = jQuery.makeArray(value),
              i = options.length;

          while (i--) {
            option = options[i];
            /* eslint-disable no-cond-assign */

            if (option.selected = jQuery.inArray(jQuery.valHooks.option.get(option), values) > -1) {
              optionSet = true;
            }
            /* eslint-enable no-cond-assign */

          } // Force browsers to behave consistently when non-matching value is set


          if (!optionSet) {
            elem.selectedIndex = -1;
          }

          return values;
        }
      }
    }
  }); // Radios and checkboxes getter/setter

  jQuery.each(["radio", "checkbox"], function () {
    jQuery.valHooks[this] = {
      set: function (elem, value) {
        if (Array.isArray(value)) {
          return elem.checked = jQuery.inArray(jQuery(elem).val(), value) > -1;
        }
      }
    };

    if (!support.checkOn) {
      jQuery.valHooks[this].get = function (elem) {
        return elem.getAttribute("value") === null ? "on" : elem.value;
      };
    }
  }); // Return jQuery for attributes-only inclusion

  support.focusin = "onfocusin" in window;

  var rfocusMorph = /^(?:focusinfocus|focusoutblur)$/,
      stopPropagationCallback = function (e) {
    e.stopPropagation();
  };

  jQuery.extend(jQuery.event, {
    trigger: function (event, data, elem, onlyHandlers) {
      var i,
          cur,
          tmp,
          bubbleType,
          ontype,
          handle,
          special,
          lastElement,
          eventPath = [elem || document],
          type = hasOwn.call(event, "type") ? event.type : event,
          namespaces = hasOwn.call(event, "namespace") ? event.namespace.split(".") : [];
      cur = lastElement = tmp = elem = elem || document; // Don't do events on text and comment nodes

      if (elem.nodeType === 3 || elem.nodeType === 8) {
        return;
      } // focus/blur morphs to focusin/out; ensure we're not firing them right now


      if (rfocusMorph.test(type + jQuery.event.triggered)) {
        return;
      }

      if (type.indexOf(".") > -1) {
        // Namespaced trigger; create a regexp to match event type in handle()
        namespaces = type.split(".");
        type = namespaces.shift();
        namespaces.sort();
      }

      ontype = type.indexOf(":") < 0 && "on" + type; // Caller can pass in a jQuery.Event object, Object, or just an event type string

      event = event[jQuery.expando] ? event : new jQuery.Event(type, typeof event === "object" && event); // Trigger bitmask: & 1 for native handlers; & 2 for jQuery (always true)

      event.isTrigger = onlyHandlers ? 2 : 3;
      event.namespace = namespaces.join(".");
      event.rnamespace = event.namespace ? new RegExp("(^|\\.)" + namespaces.join("\\.(?:.*\\.|)") + "(\\.|$)") : null; // Clean up the event in case it is being reused

      event.result = undefined;

      if (!event.target) {
        event.target = elem;
      } // Clone any incoming data and prepend the event, creating the handler arg list


      data = data == null ? [event] : jQuery.makeArray(data, [event]); // Allow special events to draw outside the lines

      special = jQuery.event.special[type] || {};

      if (!onlyHandlers && special.trigger && special.trigger.apply(elem, data) === false) {
        return;
      } // Determine event propagation path in advance, per W3C events spec (#9951)
      // Bubble up to document, then to window; watch for a global ownerDocument var (#9724)


      if (!onlyHandlers && !special.noBubble && !isWindow(elem)) {
        bubbleType = special.delegateType || type;

        if (!rfocusMorph.test(bubbleType + type)) {
          cur = cur.parentNode;
        }

        for (; cur; cur = cur.parentNode) {
          eventPath.push(cur);
          tmp = cur;
        } // Only add window if we got to document (e.g., not plain obj or detached DOM)


        if (tmp === (elem.ownerDocument || document)) {
          eventPath.push(tmp.defaultView || tmp.parentWindow || window);
        }
      } // Fire handlers on the event path


      i = 0;

      while ((cur = eventPath[i++]) && !event.isPropagationStopped()) {
        lastElement = cur;
        event.type = i > 1 ? bubbleType : special.bindType || type; // jQuery handler

        handle = (dataPriv.get(cur, "events") || {})[event.type] && dataPriv.get(cur, "handle");

        if (handle) {
          handle.apply(cur, data);
        } // Native handler


        handle = ontype && cur[ontype];

        if (handle && handle.apply && acceptData(cur)) {
          event.result = handle.apply(cur, data);

          if (event.result === false) {
            event.preventDefault();
          }
        }
      }

      event.type = type; // If nobody prevented the default action, do it now

      if (!onlyHandlers && !event.isDefaultPrevented()) {
        if ((!special._default || special._default.apply(eventPath.pop(), data) === false) && acceptData(elem)) {
          // Call a native DOM method on the target with the same name as the event.
          // Don't do default actions on window, that's where global variables be (#6170)
          if (ontype && isFunction(elem[type]) && !isWindow(elem)) {
            // Don't re-trigger an onFOO event when we call its FOO() method
            tmp = elem[ontype];

            if (tmp) {
              elem[ontype] = null;
            } // Prevent re-triggering of the same event, since we already bubbled it above


            jQuery.event.triggered = type;

            if (event.isPropagationStopped()) {
              lastElement.addEventListener(type, stopPropagationCallback);
            }

            elem[type]();

            if (event.isPropagationStopped()) {
              lastElement.removeEventListener(type, stopPropagationCallback);
            }

            jQuery.event.triggered = undefined;

            if (tmp) {
              elem[ontype] = tmp;
            }
          }
        }
      }

      return event.result;
    },
    // Piggyback on a donor event to simulate a different one
    // Used only for `focus(in | out)` events
    simulate: function (type, elem, event) {
      var e = jQuery.extend(new jQuery.Event(), event, {
        type: type,
        isSimulated: true
      });
      jQuery.event.trigger(e, null, elem);
    }
  });
  jQuery.fn.extend({
    trigger: function (type, data) {
      return this.each(function () {
        jQuery.event.trigger(type, data, this);
      });
    },
    triggerHandler: function (type, data) {
      var elem = this[0];

      if (elem) {
        return jQuery.event.trigger(type, data, elem, true);
      }
    }
  }); // Support: Firefox <=44
  // Firefox doesn't have focus(in | out) events
  // Related ticket - https://bugzilla.mozilla.org/show_bug.cgi?id=687787
  //
  // Support: Chrome <=48 - 49, Safari <=9.0 - 9.1
  // focus(in | out) events fire after focus & blur events,
  // which is spec violation - http://www.w3.org/TR/DOM-Level-3-Events/#events-focusevent-event-order
  // Related ticket - https://bugs.chromium.org/p/chromium/issues/detail?id=449857

  if (!support.focusin) {
    jQuery.each({
      focus: "focusin",
      blur: "focusout"
    }, function (orig, fix) {
      // Attach a single capturing handler on the document while someone wants focusin/focusout
      var handler = function (event) {
        jQuery.event.simulate(fix, event.target, jQuery.event.fix(event));
      };

      jQuery.event.special[fix] = {
        setup: function () {
          var doc = this.ownerDocument || this,
              attaches = dataPriv.access(doc, fix);

          if (!attaches) {
            doc.addEventListener(orig, handler, true);
          }

          dataPriv.access(doc, fix, (attaches || 0) + 1);
        },
        teardown: function () {
          var doc = this.ownerDocument || this,
              attaches = dataPriv.access(doc, fix) - 1;

          if (!attaches) {
            doc.removeEventListener(orig, handler, true);
            dataPriv.remove(doc, fix);
          } else {
            dataPriv.access(doc, fix, attaches);
          }
        }
      };
    });
  }

  var location = window.location;
  var nonce = Date.now();
  var rquery = /\?/; // Cross-browser xml parsing

  jQuery.parseXML = function (data) {
    var xml;

    if (!data || typeof data !== "string") {
      return null;
    } // Support: IE 9 - 11 only
    // IE throws on parseFromString with invalid input.


    try {
      xml = new window.DOMParser().parseFromString(data, "text/xml");
    } catch (e) {
      xml = undefined;
    }

    if (!xml || xml.getElementsByTagName("parsererror").length) {
      jQuery.error("Invalid XML: " + data);
    }

    return xml;
  };

  var rbracket = /\[\]$/,
      rCRLF = /\r?\n/g,
      rsubmitterTypes = /^(?:submit|button|image|reset|file)$/i,
      rsubmittable = /^(?:input|select|textarea|keygen)/i;

  function buildParams(prefix, obj, traditional, add) {
    var name;

    if (Array.isArray(obj)) {
      // Serialize array item.
      jQuery.each(obj, function (i, v) {
        if (traditional || rbracket.test(prefix)) {
          // Treat each array item as a scalar.
          add(prefix, v);
        } else {
          // Item is non-scalar (array or object), encode its numeric index.
          buildParams(prefix + "[" + (typeof v === "object" && v != null ? i : "") + "]", v, traditional, add);
        }
      });
    } else if (!traditional && toType(obj) === "object") {
      // Serialize object item.
      for (name in obj) {
        buildParams(prefix + "[" + name + "]", obj[name], traditional, add);
      }
    } else {
      // Serialize scalar item.
      add(prefix, obj);
    }
  } // Serialize an array of form elements or a set of
  // key/values into a query string


  jQuery.param = function (a, traditional) {
    var prefix,
        s = [],
        add = function (key, valueOrFunction) {
      // If value is a function, invoke it and use its return value
      var value = isFunction(valueOrFunction) ? valueOrFunction() : valueOrFunction;
      s[s.length] = encodeURIComponent(key) + "=" + encodeURIComponent(value == null ? "" : value);
    }; // If an array was passed in, assume that it is an array of form elements.


    if (Array.isArray(a) || a.jquery && !jQuery.isPlainObject(a)) {
      // Serialize the form elements
      jQuery.each(a, function () {
        add(this.name, this.value);
      });
    } else {
      // If traditional, encode the "old" way (the way 1.3.2 or older
      // did it), otherwise encode params recursively.
      for (prefix in a) {
        buildParams(prefix, a[prefix], traditional, add);
      }
    } // Return the resulting serialization


    return s.join("&");
  };

  jQuery.fn.extend({
    serialize: function () {
      return jQuery.param(this.serializeArray());
    },
    serializeArray: function () {
      return this.map(function () {
        // Can add propHook for "elements" to filter or add form elements
        var elements = jQuery.prop(this, "elements");
        return elements ? jQuery.makeArray(elements) : this;
      }).filter(function () {
        var type = this.type; // Use .is( ":disabled" ) so that fieldset[disabled] works

        return this.name && !jQuery(this).is(":disabled") && rsubmittable.test(this.nodeName) && !rsubmitterTypes.test(type) && (this.checked || !rcheckableType.test(type));
      }).map(function (i, elem) {
        var val = jQuery(this).val();

        if (val == null) {
          return null;
        }

        if (Array.isArray(val)) {
          return jQuery.map(val, function (val) {
            return {
              name: elem.name,
              value: val.replace(rCRLF, "\r\n")
            };
          });
        }

        return {
          name: elem.name,
          value: val.replace(rCRLF, "\r\n")
        };
      }).get();
    }
  });
  var r20 = /%20/g,
      rhash = /#.*$/,
      rantiCache = /([?&])_=[^&]*/,
      rheaders = /^(.*?):[ \t]*([^\r\n]*)$/mg,
      // #7653, #8125, #8152: local protocol detection
  rlocalProtocol = /^(?:about|app|app-storage|.+-extension|file|res|widget):$/,
      rnoContent = /^(?:GET|HEAD)$/,
      rprotocol = /^\/\//,

  /* Prefilters
   * 1) They are useful to introduce custom dataTypes (see ajax/jsonp.js for an example)
   * 2) These are called:
   *    - BEFORE asking for a transport
   *    - AFTER param serialization (s.data is a string if s.processData is true)
   * 3) key is the dataType
   * 4) the catchall symbol "*" can be used
   * 5) execution will start with transport dataType and THEN continue down to "*" if needed
   */
  prefilters = {},

  /* Transports bindings
   * 1) key is the dataType
   * 2) the catchall symbol "*" can be used
   * 3) selection will start with transport dataType and THEN go to "*" if needed
   */
  transports = {},
      // Avoid comment-prolog char sequence (#10098); must appease lint and evade compression
  allTypes = "*/".concat("*"),
      // Anchor tag for parsing the document origin
  originAnchor = document.createElement("a");
  originAnchor.href = location.href; // Base "constructor" for jQuery.ajaxPrefilter and jQuery.ajaxTransport

  function addToPrefiltersOrTransports(structure) {
    // dataTypeExpression is optional and defaults to "*"
    return function (dataTypeExpression, func) {
      if (typeof dataTypeExpression !== "string") {
        func = dataTypeExpression;
        dataTypeExpression = "*";
      }

      var dataType,
          i = 0,
          dataTypes = dataTypeExpression.toLowerCase().match(rnothtmlwhite) || [];

      if (isFunction(func)) {
        // For each dataType in the dataTypeExpression
        while (dataType = dataTypes[i++]) {
          // Prepend if requested
          if (dataType[0] === "+") {
            dataType = dataType.slice(1) || "*";
            (structure[dataType] = structure[dataType] || []).unshift(func); // Otherwise append
          } else {
            (structure[dataType] = structure[dataType] || []).push(func);
          }
        }
      }
    };
  } // Base inspection function for prefilters and transports


  function inspectPrefiltersOrTransports(structure, options, originalOptions, jqXHR) {
    var inspected = {},
        seekingTransport = structure === transports;

    function inspect(dataType) {
      var selected;
      inspected[dataType] = true;
      jQuery.each(structure[dataType] || [], function (_, prefilterOrFactory) {
        var dataTypeOrTransport = prefilterOrFactory(options, originalOptions, jqXHR);

        if (typeof dataTypeOrTransport === "string" && !seekingTransport && !inspected[dataTypeOrTransport]) {
          options.dataTypes.unshift(dataTypeOrTransport);
          inspect(dataTypeOrTransport);
          return false;
        } else if (seekingTransport) {
          return !(selected = dataTypeOrTransport);
        }
      });
      return selected;
    }

    return inspect(options.dataTypes[0]) || !inspected["*"] && inspect("*");
  } // A special extend for ajax options
  // that takes "flat" options (not to be deep extended)
  // Fixes #9887


  function ajaxExtend(target, src) {
    var key,
        deep,
        flatOptions = jQuery.ajaxSettings.flatOptions || {};

    for (key in src) {
      if (src[key] !== undefined) {
        (flatOptions[key] ? target : deep || (deep = {}))[key] = src[key];
      }
    }

    if (deep) {
      jQuery.extend(true, target, deep);
    }

    return target;
  }
  /* Handles responses to an ajax request:
   * - finds the right dataType (mediates between content-type and expected dataType)
   * - returns the corresponding response
   */


  function ajaxHandleResponses(s, jqXHR, responses) {
    var ct,
        type,
        finalDataType,
        firstDataType,
        contents = s.contents,
        dataTypes = s.dataTypes; // Remove auto dataType and get content-type in the process

    while (dataTypes[0] === "*") {
      dataTypes.shift();

      if (ct === undefined) {
        ct = s.mimeType || jqXHR.getResponseHeader("Content-Type");
      }
    } // Check if we're dealing with a known content-type


    if (ct) {
      for (type in contents) {
        if (contents[type] && contents[type].test(ct)) {
          dataTypes.unshift(type);
          break;
        }
      }
    } // Check to see if we have a response for the expected dataType


    if (dataTypes[0] in responses) {
      finalDataType = dataTypes[0];
    } else {
      // Try convertible dataTypes
      for (type in responses) {
        if (!dataTypes[0] || s.converters[type + " " + dataTypes[0]]) {
          finalDataType = type;
          break;
        }

        if (!firstDataType) {
          firstDataType = type;
        }
      } // Or just use first one


      finalDataType = finalDataType || firstDataType;
    } // If we found a dataType
    // We add the dataType to the list if needed
    // and return the corresponding response


    if (finalDataType) {
      if (finalDataType !== dataTypes[0]) {
        dataTypes.unshift(finalDataType);
      }

      return responses[finalDataType];
    }
  }
  /* Chain conversions given the request and the original response
   * Also sets the responseXXX fields on the jqXHR instance
   */


  function ajaxConvert(s, response, jqXHR, isSuccess) {
    var conv2,
        current,
        conv,
        tmp,
        prev,
        converters = {},
        // Work with a copy of dataTypes in case we need to modify it for conversion
    dataTypes = s.dataTypes.slice(); // Create converters map with lowercased keys

    if (dataTypes[1]) {
      for (conv in s.converters) {
        converters[conv.toLowerCase()] = s.converters[conv];
      }
    }

    current = dataTypes.shift(); // Convert to each sequential dataType

    while (current) {
      if (s.responseFields[current]) {
        jqXHR[s.responseFields[current]] = response;
      } // Apply the dataFilter if provided


      if (!prev && isSuccess && s.dataFilter) {
        response = s.dataFilter(response, s.dataType);
      }

      prev = current;
      current = dataTypes.shift();

      if (current) {
        // There's only work to do if current dataType is non-auto
        if (current === "*") {
          current = prev; // Convert response if prev dataType is non-auto and differs from current
        } else if (prev !== "*" && prev !== current) {
          // Seek a direct converter
          conv = converters[prev + " " + current] || converters["* " + current]; // If none found, seek a pair

          if (!conv) {
            for (conv2 in converters) {
              // If conv2 outputs current
              tmp = conv2.split(" ");

              if (tmp[1] === current) {
                // If prev can be converted to accepted input
                conv = converters[prev + " " + tmp[0]] || converters["* " + tmp[0]];

                if (conv) {
                  // Condense equivalence converters
                  if (conv === true) {
                    conv = converters[conv2]; // Otherwise, insert the intermediate dataType
                  } else if (converters[conv2] !== true) {
                    current = tmp[0];
                    dataTypes.unshift(tmp[1]);
                  }

                  break;
                }
              }
            }
          } // Apply converter (if not an equivalence)


          if (conv !== true) {
            // Unless errors are allowed to bubble, catch and return them
            if (conv && s.throws) {
              response = conv(response);
            } else {
              try {
                response = conv(response);
              } catch (e) {
                return {
                  state: "parsererror",
                  error: conv ? e : "No conversion from " + prev + " to " + current
                };
              }
            }
          }
        }
      }
    }

    return {
      state: "success",
      data: response
    };
  }

  jQuery.extend({
    // Counter for holding the number of active queries
    active: 0,
    // Last-Modified header cache for next request
    lastModified: {},
    etag: {},
    ajaxSettings: {
      url: location.href,
      type: "GET",
      isLocal: rlocalProtocol.test(location.protocol),
      global: true,
      processData: true,
      async: true,
      contentType: "application/x-www-form-urlencoded; charset=UTF-8",

      /*
      timeout: 0,
      data: null,
      dataType: null,
      username: null,
      password: null,
      cache: null,
      throws: false,
      traditional: false,
      headers: {},
      */
      accepts: {
        "*": allTypes,
        text: "text/plain",
        html: "text/html",
        xml: "application/xml, text/xml",
        json: "application/json, text/javascript"
      },
      contents: {
        xml: /\bxml\b/,
        html: /\bhtml/,
        json: /\bjson\b/
      },
      responseFields: {
        xml: "responseXML",
        text: "responseText",
        json: "responseJSON"
      },
      // Data converters
      // Keys separate source (or catchall "*") and destination types with a single space
      converters: {
        // Convert anything to text
        "* text": String,
        // Text to html (true = no transformation)
        "text html": true,
        // Evaluate text as a json expression
        "text json": JSON.parse,
        // Parse text as xml
        "text xml": jQuery.parseXML
      },
      // For options that shouldn't be deep extended:
      // you can add your own custom options here if
      // and when you create one that shouldn't be
      // deep extended (see ajaxExtend)
      flatOptions: {
        url: true,
        context: true
      }
    },
    // Creates a full fledged settings object into target
    // with both ajaxSettings and settings fields.
    // If target is omitted, writes into ajaxSettings.
    ajaxSetup: function (target, settings) {
      return settings ? // Building a settings object
      ajaxExtend(ajaxExtend(target, jQuery.ajaxSettings), settings) : // Extending ajaxSettings
      ajaxExtend(jQuery.ajaxSettings, target);
    },
    ajaxPrefilter: addToPrefiltersOrTransports(prefilters),
    ajaxTransport: addToPrefiltersOrTransports(transports),
    // Main method
    ajax: function (url, options) {
      // If url is an object, simulate pre-1.5 signature
      if (typeof url === "object") {
        options = url;
        url = undefined;
      } // Force options to be an object


      options = options || {};
      var transport,
          // URL without anti-cache param
      cacheURL,
          // Response headers
      responseHeadersString,
          responseHeaders,
          // timeout handle
      timeoutTimer,
          // Url cleanup var
      urlAnchor,
          // Request state (becomes false upon send and true upon completion)
      completed,
          // To know if global events are to be dispatched
      fireGlobals,
          // Loop variable
      i,
          // uncached part of the url
      uncached,
          // Create the final options object
      s = jQuery.ajaxSetup({}, options),
          // Callbacks context
      callbackContext = s.context || s,
          // Context for global events is callbackContext if it is a DOM node or jQuery collection
      globalEventContext = s.context && (callbackContext.nodeType || callbackContext.jquery) ? jQuery(callbackContext) : jQuery.event,
          // Deferreds
      deferred = jQuery.Deferred(),
          completeDeferred = jQuery.Callbacks("once memory"),
          // Status-dependent callbacks
      statusCode = s.statusCode || {},
          // Headers (they are sent all at once)
      requestHeaders = {},
          requestHeadersNames = {},
          // Default abort message
      strAbort = "canceled",
          // Fake xhr
      jqXHR = {
        readyState: 0,
        // Builds headers hashtable if needed
        getResponseHeader: function (key) {
          var match;

          if (completed) {
            if (!responseHeaders) {
              responseHeaders = {};

              while (match = rheaders.exec(responseHeadersString)) {
                responseHeaders[match[1].toLowerCase()] = match[2];
              }
            }

            match = responseHeaders[key.toLowerCase()];
          }

          return match == null ? null : match;
        },
        // Raw string
        getAllResponseHeaders: function () {
          return completed ? responseHeadersString : null;
        },
        // Caches the header
        setRequestHeader: function (name, value) {
          if (completed == null) {
            name = requestHeadersNames[name.toLowerCase()] = requestHeadersNames[name.toLowerCase()] || name;
            requestHeaders[name] = value;
          }

          return this;
        },
        // Overrides response content-type header
        overrideMimeType: function (type) {
          if (completed == null) {
            s.mimeType = type;
          }

          return this;
        },
        // Status-dependent callbacks
        statusCode: function (map) {
          var code;

          if (map) {
            if (completed) {
              // Execute the appropriate callbacks
              jqXHR.always(map[jqXHR.status]);
            } else {
              // Lazy-add the new callbacks in a way that preserves old ones
              for (code in map) {
                statusCode[code] = [statusCode[code], map[code]];
              }
            }
          }

          return this;
        },
        // Cancel the request
        abort: function (statusText) {
          var finalText = statusText || strAbort;

          if (transport) {
            transport.abort(finalText);
          }

          done(0, finalText);
          return this;
        }
      }; // Attach deferreds

      deferred.promise(jqXHR); // Add protocol if not provided (prefilters might expect it)
      // Handle falsy url in the settings object (#10093: consistency with old signature)
      // We also use the url parameter if available

      s.url = ((url || s.url || location.href) + "").replace(rprotocol, location.protocol + "//"); // Alias method option to type as per ticket #12004

      s.type = options.method || options.type || s.method || s.type; // Extract dataTypes list

      s.dataTypes = (s.dataType || "*").toLowerCase().match(rnothtmlwhite) || [""]; // A cross-domain request is in order when the origin doesn't match the current origin.

      if (s.crossDomain == null) {
        urlAnchor = document.createElement("a"); // Support: IE <=8 - 11, Edge 12 - 15
        // IE throws exception on accessing the href property if url is malformed,
        // e.g. http://example.com:80x/

        try {
          urlAnchor.href = s.url; // Support: IE <=8 - 11 only
          // Anchor's host property isn't correctly set when s.url is relative

          urlAnchor.href = urlAnchor.href;
          s.crossDomain = originAnchor.protocol + "//" + originAnchor.host !== urlAnchor.protocol + "//" + urlAnchor.host;
        } catch (e) {
          // If there is an error parsing the URL, assume it is crossDomain,
          // it can be rejected by the transport if it is invalid
          s.crossDomain = true;
        }
      } // Convert data if not already a string


      if (s.data && s.processData && typeof s.data !== "string") {
        s.data = jQuery.param(s.data, s.traditional);
      } // Apply prefilters


      inspectPrefiltersOrTransports(prefilters, s, options, jqXHR); // If request was aborted inside a prefilter, stop there

      if (completed) {
        return jqXHR;
      } // We can fire global events as of now if asked to
      // Don't fire events if jQuery.event is undefined in an AMD-usage scenario (#15118)


      fireGlobals = jQuery.event && s.global; // Watch for a new set of requests

      if (fireGlobals && jQuery.active++ === 0) {
        jQuery.event.trigger("ajaxStart");
      } // Uppercase the type


      s.type = s.type.toUpperCase(); // Determine if request has content

      s.hasContent = !rnoContent.test(s.type); // Save the URL in case we're toying with the If-Modified-Since
      // and/or If-None-Match header later on
      // Remove hash to simplify url manipulation

      cacheURL = s.url.replace(rhash, ""); // More options handling for requests with no content

      if (!s.hasContent) {
        // Remember the hash so we can put it back
        uncached = s.url.slice(cacheURL.length); // If data is available and should be processed, append data to url

        if (s.data && (s.processData || typeof s.data === "string")) {
          cacheURL += (rquery.test(cacheURL) ? "&" : "?") + s.data; // #9682: remove data so that it's not used in an eventual retry

          delete s.data;
        } // Add or update anti-cache param if needed


        if (s.cache === false) {
          cacheURL = cacheURL.replace(rantiCache, "$1");
          uncached = (rquery.test(cacheURL) ? "&" : "?") + "_=" + nonce++ + uncached;
        } // Put hash and anti-cache on the URL that will be requested (gh-1732)


        s.url = cacheURL + uncached; // Change '%20' to '+' if this is encoded form body content (gh-2658)
      } else if (s.data && s.processData && (s.contentType || "").indexOf("application/x-www-form-urlencoded") === 0) {
        s.data = s.data.replace(r20, "+");
      } // Set the If-Modified-Since and/or If-None-Match header, if in ifModified mode.


      if (s.ifModified) {
        if (jQuery.lastModified[cacheURL]) {
          jqXHR.setRequestHeader("If-Modified-Since", jQuery.lastModified[cacheURL]);
        }

        if (jQuery.etag[cacheURL]) {
          jqXHR.setRequestHeader("If-None-Match", jQuery.etag[cacheURL]);
        }
      } // Set the correct header, if data is being sent


      if (s.data && s.hasContent && s.contentType !== false || options.contentType) {
        jqXHR.setRequestHeader("Content-Type", s.contentType);
      } // Set the Accepts header for the server, depending on the dataType


      jqXHR.setRequestHeader("Accept", s.dataTypes[0] && s.accepts[s.dataTypes[0]] ? s.accepts[s.dataTypes[0]] + (s.dataTypes[0] !== "*" ? ", " + allTypes + "; q=0.01" : "") : s.accepts["*"]); // Check for headers option

      for (i in s.headers) {
        jqXHR.setRequestHeader(i, s.headers[i]);
      } // Allow custom headers/mimetypes and early abort


      if (s.beforeSend && (s.beforeSend.call(callbackContext, jqXHR, s) === false || completed)) {
        // Abort if not done already and return
        return jqXHR.abort();
      } // Aborting is no longer a cancellation


      strAbort = "abort"; // Install callbacks on deferreds

      completeDeferred.add(s.complete);
      jqXHR.done(s.success);
      jqXHR.fail(s.error); // Get transport

      transport = inspectPrefiltersOrTransports(transports, s, options, jqXHR); // If no transport, we auto-abort

      if (!transport) {
        done(-1, "No Transport");
      } else {
        jqXHR.readyState = 1; // Send global event

        if (fireGlobals) {
          globalEventContext.trigger("ajaxSend", [jqXHR, s]);
        } // If request was aborted inside ajaxSend, stop there


        if (completed) {
          return jqXHR;
        } // Timeout


        if (s.async && s.timeout > 0) {
          timeoutTimer = window.setTimeout(function () {
            jqXHR.abort("timeout");
          }, s.timeout);
        }

        try {
          completed = false;
          transport.send(requestHeaders, done);
        } catch (e) {
          // Rethrow post-completion exceptions
          if (completed) {
            throw e;
          } // Propagate others as results


          done(-1, e);
        }
      } // Callback for when everything is done


      function done(status, nativeStatusText, responses, headers) {
        var isSuccess,
            success,
            error,
            response,
            modified,
            statusText = nativeStatusText; // Ignore repeat invocations

        if (completed) {
          return;
        }

        completed = true; // Clear timeout if it exists

        if (timeoutTimer) {
          window.clearTimeout(timeoutTimer);
        } // Dereference transport for early garbage collection
        // (no matter how long the jqXHR object will be used)


        transport = undefined; // Cache response headers

        responseHeadersString = headers || ""; // Set readyState

        jqXHR.readyState = status > 0 ? 4 : 0; // Determine if successful

        isSuccess = status >= 200 && status < 300 || status === 304; // Get response data

        if (responses) {
          response = ajaxHandleResponses(s, jqXHR, responses);
        } // Convert no matter what (that way responseXXX fields are always set)


        response = ajaxConvert(s, response, jqXHR, isSuccess); // If successful, handle type chaining

        if (isSuccess) {
          // Set the If-Modified-Since and/or If-None-Match header, if in ifModified mode.
          if (s.ifModified) {
            modified = jqXHR.getResponseHeader("Last-Modified");

            if (modified) {
              jQuery.lastModified[cacheURL] = modified;
            }

            modified = jqXHR.getResponseHeader("etag");

            if (modified) {
              jQuery.etag[cacheURL] = modified;
            }
          } // if no content


          if (status === 204 || s.type === "HEAD") {
            statusText = "nocontent"; // if not modified
          } else if (status === 304) {
            statusText = "notmodified"; // If we have data, let's convert it
          } else {
            statusText = response.state;
            success = response.data;
            error = response.error;
            isSuccess = !error;
          }
        } else {
          // Extract error from statusText and normalize for non-aborts
          error = statusText;

          if (status || !statusText) {
            statusText = "error";

            if (status < 0) {
              status = 0;
            }
          }
        } // Set data for the fake xhr object


        jqXHR.status = status;
        jqXHR.statusText = (nativeStatusText || statusText) + ""; // Success/Error

        if (isSuccess) {
          deferred.resolveWith(callbackContext, [success, statusText, jqXHR]);
        } else {
          deferred.rejectWith(callbackContext, [jqXHR, statusText, error]);
        } // Status-dependent callbacks


        jqXHR.statusCode(statusCode);
        statusCode = undefined;

        if (fireGlobals) {
          globalEventContext.trigger(isSuccess ? "ajaxSuccess" : "ajaxError", [jqXHR, s, isSuccess ? success : error]);
        } // Complete


        completeDeferred.fireWith(callbackContext, [jqXHR, statusText]);

        if (fireGlobals) {
          globalEventContext.trigger("ajaxComplete", [jqXHR, s]); // Handle the global AJAX counter

          if (! --jQuery.active) {
            jQuery.event.trigger("ajaxStop");
          }
        }
      }

      return jqXHR;
    },
    getJSON: function (url, data, callback) {
      return jQuery.get(url, data, callback, "json");
    },
    getScript: function (url, callback) {
      return jQuery.get(url, undefined, callback, "script");
    }
  });
  jQuery.each(["get", "post"], function (i, method) {
    jQuery[method] = function (url, data, callback, type) {
      // Shift arguments if data argument was omitted
      if (isFunction(data)) {
        type = type || callback;
        callback = data;
        data = undefined;
      } // The url can be an options object (which then must have .url)


      return jQuery.ajax(jQuery.extend({
        url: url,
        type: method,
        dataType: type,
        data: data,
        success: callback
      }, jQuery.isPlainObject(url) && url));
    };
  });

  jQuery._evalUrl = function (url) {
    return jQuery.ajax({
      url: url,
      // Make this explicit, since user can override this through ajaxSetup (#11264)
      type: "GET",
      dataType: "script",
      cache: true,
      async: false,
      global: false,
      "throws": true
    });
  };

  jQuery.fn.extend({
    wrapAll: function (html) {
      var wrap;

      if (this[0]) {
        if (isFunction(html)) {
          html = html.call(this[0]);
        } // The elements to wrap the target around


        wrap = jQuery(html, this[0].ownerDocument).eq(0).clone(true);

        if (this[0].parentNode) {
          wrap.insertBefore(this[0]);
        }

        wrap.map(function () {
          var elem = this;

          while (elem.firstElementChild) {
            elem = elem.firstElementChild;
          }

          return elem;
        }).append(this);
      }

      return this;
    },
    wrapInner: function (html) {
      if (isFunction(html)) {
        return this.each(function (i) {
          jQuery(this).wrapInner(html.call(this, i));
        });
      }

      return this.each(function () {
        var self = jQuery(this),
            contents = self.contents();

        if (contents.length) {
          contents.wrapAll(html);
        } else {
          self.append(html);
        }
      });
    },
    wrap: function (html) {
      var htmlIsFunction = isFunction(html);
      return this.each(function (i) {
        jQuery(this).wrapAll(htmlIsFunction ? html.call(this, i) : html);
      });
    },
    unwrap: function (selector) {
      this.parent(selector).not("body").each(function () {
        jQuery(this).replaceWith(this.childNodes);
      });
      return this;
    }
  });

  jQuery.expr.pseudos.hidden = function (elem) {
    return !jQuery.expr.pseudos.visible(elem);
  };

  jQuery.expr.pseudos.visible = function (elem) {
    return !!(elem.offsetWidth || elem.offsetHeight || elem.getClientRects().length);
  };

  jQuery.ajaxSettings.xhr = function () {
    try {
      return new window.XMLHttpRequest();
    } catch (e) {}
  };

  var xhrSuccessStatus = {
    // File protocol always yields status code 0, assume 200
    0: 200,
    // Support: IE <=9 only
    // #1450: sometimes IE returns 1223 when it should be 204
    1223: 204
  },
      xhrSupported = jQuery.ajaxSettings.xhr();
  support.cors = !!xhrSupported && "withCredentials" in xhrSupported;
  support.ajax = xhrSupported = !!xhrSupported;
  jQuery.ajaxTransport(function (options) {
    var callback, errorCallback; // Cross domain only allowed if supported through XMLHttpRequest

    if (support.cors || xhrSupported && !options.crossDomain) {
      return {
        send: function (headers, complete) {
          var i,
              xhr = options.xhr();
          xhr.open(options.type, options.url, options.async, options.username, options.password); // Apply custom fields if provided

          if (options.xhrFields) {
            for (i in options.xhrFields) {
              xhr[i] = options.xhrFields[i];
            }
          } // Override mime type if needed


          if (options.mimeType && xhr.overrideMimeType) {
            xhr.overrideMimeType(options.mimeType);
          } // X-Requested-With header
          // For cross-domain requests, seeing as conditions for a preflight are
          // akin to a jigsaw puzzle, we simply never set it to be sure.
          // (it can always be set on a per-request basis or even using ajaxSetup)
          // For same-domain requests, won't change header if already provided.


          if (!options.crossDomain && !headers["X-Requested-With"]) {
            headers["X-Requested-With"] = "XMLHttpRequest";
          } // Set headers


          for (i in headers) {
            xhr.setRequestHeader(i, headers[i]);
          } // Callback


          callback = function (type) {
            return function () {
              if (callback) {
                callback = errorCallback = xhr.onload = xhr.onerror = xhr.onabort = xhr.ontimeout = xhr.onreadystatechange = null;

                if (type === "abort") {
                  xhr.abort();
                } else if (type === "error") {
                  // Support: IE <=9 only
                  // On a manual native abort, IE9 throws
                  // errors on any property access that is not readyState
                  if (typeof xhr.status !== "number") {
                    complete(0, "error");
                  } else {
                    complete( // File: protocol always yields status 0; see #8605, #14207
                    xhr.status, xhr.statusText);
                  }
                } else {
                  complete(xhrSuccessStatus[xhr.status] || xhr.status, xhr.statusText, // Support: IE <=9 only
                  // IE9 has no XHR2 but throws on binary (trac-11426)
                  // For XHR2 non-text, let the caller handle it (gh-2498)
                  (xhr.responseType || "text") !== "text" || typeof xhr.responseText !== "string" ? {
                    binary: xhr.response
                  } : {
                    text: xhr.responseText
                  }, xhr.getAllResponseHeaders());
                }
              }
            };
          }; // Listen to events


          xhr.onload = callback();
          errorCallback = xhr.onerror = xhr.ontimeout = callback("error"); // Support: IE 9 only
          // Use onreadystatechange to replace onabort
          // to handle uncaught aborts

          if (xhr.onabort !== undefined) {
            xhr.onabort = errorCallback;
          } else {
            xhr.onreadystatechange = function () {
              // Check readyState before timeout as it changes
              if (xhr.readyState === 4) {
                // Allow onerror to be called first,
                // but that will not handle a native abort
                // Also, save errorCallback to a variable
                // as xhr.onerror cannot be accessed
                window.setTimeout(function () {
                  if (callback) {
                    errorCallback();
                  }
                });
              }
            };
          } // Create the abort callback


          callback = callback("abort");

          try {
            // Do send the request (this may raise an exception)
            xhr.send(options.hasContent && options.data || null);
          } catch (e) {
            // #14683: Only rethrow if this hasn't been notified as an error yet
            if (callback) {
              throw e;
            }
          }
        },
        abort: function () {
          if (callback) {
            callback();
          }
        }
      };
    }
  }); // Prevent auto-execution of scripts when no explicit dataType was provided (See gh-2432)

  jQuery.ajaxPrefilter(function (s) {
    if (s.crossDomain) {
      s.contents.script = false;
    }
  }); // Install script dataType

  jQuery.ajaxSetup({
    accepts: {
      script: "text/javascript, application/javascript, " + "application/ecmascript, application/x-ecmascript"
    },
    contents: {
      script: /\b(?:java|ecma)script\b/
    },
    converters: {
      "text script": function (text) {
        jQuery.globalEval(text);
        return text;
      }
    }
  }); // Handle cache's special case and crossDomain

  jQuery.ajaxPrefilter("script", function (s) {
    if (s.cache === undefined) {
      s.cache = false;
    }

    if (s.crossDomain) {
      s.type = "GET";
    }
  }); // Bind script tag hack transport

  jQuery.ajaxTransport("script", function (s) {
    // This transport only deals with cross domain requests
    if (s.crossDomain) {
      var script, callback;
      return {
        send: function (_, complete) {
          script = jQuery("<script>").prop({
            charset: s.scriptCharset,
            src: s.url
          }).on("load error", callback = function (evt) {
            script.remove();
            callback = null;

            if (evt) {
              complete(evt.type === "error" ? 404 : 200, evt.type);
            }
          }); // Use native DOM manipulation to avoid our domManip AJAX trickery

          document.head.appendChild(script[0]);
        },
        abort: function () {
          if (callback) {
            callback();
          }
        }
      };
    }
  });
  var oldCallbacks = [],
      rjsonp = /(=)\?(?=&|$)|\?\?/; // Default jsonp settings

  jQuery.ajaxSetup({
    jsonp: "callback",
    jsonpCallback: function () {
      var callback = oldCallbacks.pop() || jQuery.expando + "_" + nonce++;
      this[callback] = true;
      return callback;
    }
  }); // Detect, normalize options and install callbacks for jsonp requests

  jQuery.ajaxPrefilter("json jsonp", function (s, originalSettings, jqXHR) {
    var callbackName,
        overwritten,
        responseContainer,
        jsonProp = s.jsonp !== false && (rjsonp.test(s.url) ? "url" : typeof s.data === "string" && (s.contentType || "").indexOf("application/x-www-form-urlencoded") === 0 && rjsonp.test(s.data) && "data"); // Handle iff the expected data type is "jsonp" or we have a parameter to set

    if (jsonProp || s.dataTypes[0] === "jsonp") {
      // Get callback name, remembering preexisting value associated with it
      callbackName = s.jsonpCallback = isFunction(s.jsonpCallback) ? s.jsonpCallback() : s.jsonpCallback; // Insert callback into url or form data

      if (jsonProp) {
        s[jsonProp] = s[jsonProp].replace(rjsonp, "$1" + callbackName);
      } else if (s.jsonp !== false) {
        s.url += (rquery.test(s.url) ? "&" : "?") + s.jsonp + "=" + callbackName;
      } // Use data converter to retrieve json after script execution


      s.converters["script json"] = function () {
        if (!responseContainer) {
          jQuery.error(callbackName + " was not called");
        }

        return responseContainer[0];
      }; // Force json dataType


      s.dataTypes[0] = "json"; // Install callback

      overwritten = window[callbackName];

      window[callbackName] = function () {
        responseContainer = arguments;
      }; // Clean-up function (fires after converters)


      jqXHR.always(function () {
        // If previous value didn't exist - remove it
        if (overwritten === undefined) {
          jQuery(window).removeProp(callbackName); // Otherwise restore preexisting value
        } else {
          window[callbackName] = overwritten;
        } // Save back as free


        if (s[callbackName]) {
          // Make sure that re-using the options doesn't screw things around
          s.jsonpCallback = originalSettings.jsonpCallback; // Save the callback name for future use

          oldCallbacks.push(callbackName);
        } // Call if it was a function and we have a response


        if (responseContainer && isFunction(overwritten)) {
          overwritten(responseContainer[0]);
        }

        responseContainer = overwritten = undefined;
      }); // Delegate to script

      return "script";
    }
  }); // Support: Safari 8 only
  // In Safari 8 documents created via document.implementation.createHTMLDocument
  // collapse sibling forms: the second one becomes a child of the first one.
  // Because of that, this security measure has to be disabled in Safari 8.
  // https://bugs.webkit.org/show_bug.cgi?id=137337

  support.createHTMLDocument = function () {
    var body = document.implementation.createHTMLDocument("").body;
    body.innerHTML = "<form></form><form></form>";
    return body.childNodes.length === 2;
  }(); // Argument "data" should be string of html
  // context (optional): If specified, the fragment will be created in this context,
  // defaults to document
  // keepScripts (optional): If true, will include scripts passed in the html string


  jQuery.parseHTML = function (data, context, keepScripts) {
    if (typeof data !== "string") {
      return [];
    }

    if (typeof context === "boolean") {
      keepScripts = context;
      context = false;
    }

    var base, parsed, scripts;

    if (!context) {
      // Stop scripts or inline event handlers from being executed immediately
      // by using document.implementation
      if (support.createHTMLDocument) {
        context = document.implementation.createHTMLDocument(""); // Set the base href for the created document
        // so any parsed elements with URLs
        // are based on the document's URL (gh-2965)

        base = context.createElement("base");
        base.href = document.location.href;
        context.head.appendChild(base);
      } else {
        context = document;
      }
    }

    parsed = rsingleTag.exec(data);
    scripts = !keepScripts && []; // Single tag

    if (parsed) {
      return [context.createElement(parsed[1])];
    }

    parsed = buildFragment([data], context, scripts);

    if (scripts && scripts.length) {
      jQuery(scripts).remove();
    }

    return jQuery.merge([], parsed.childNodes);
  };
  /**
   * Load a url into a page
   */


  jQuery.fn.load = function (url, params, callback) {
    var selector,
        type,
        response,
        self = this,
        off = url.indexOf(" ");

    if (off > -1) {
      selector = stripAndCollapse(url.slice(off));
      url = url.slice(0, off);
    } // If it's a function


    if (isFunction(params)) {
      // We assume that it's the callback
      callback = params;
      params = undefined; // Otherwise, build a param string
    } else if (params && typeof params === "object") {
      type = "POST";
    } // If we have elements to modify, make the request


    if (self.length > 0) {
      jQuery.ajax({
        url: url,
        // If "type" variable is undefined, then "GET" method will be used.
        // Make value of this field explicit since
        // user can override it through ajaxSetup method
        type: type || "GET",
        dataType: "html",
        data: params
      }).done(function (responseText) {
        // Save response for use in complete callback
        response = arguments;
        self.html(selector ? // If a selector was specified, locate the right elements in a dummy div
        // Exclude scripts to avoid IE 'Permission Denied' errors
        jQuery("<div>").append(jQuery.parseHTML(responseText)).find(selector) : // Otherwise use the full result
        responseText); // If the request succeeds, this function gets "data", "status", "jqXHR"
        // but they are ignored because response was set above.
        // If it fails, this function gets "jqXHR", "status", "error"
      }).always(callback && function (jqXHR, status) {
        self.each(function () {
          callback.apply(this, response || [jqXHR.responseText, status, jqXHR]);
        });
      });
    }

    return this;
  }; // Attach a bunch of functions for handling common AJAX events


  jQuery.each(["ajaxStart", "ajaxStop", "ajaxComplete", "ajaxError", "ajaxSuccess", "ajaxSend"], function (i, type) {
    jQuery.fn[type] = function (fn) {
      return this.on(type, fn);
    };
  });

  jQuery.expr.pseudos.animated = function (elem) {
    return jQuery.grep(jQuery.timers, function (fn) {
      return elem === fn.elem;
    }).length;
  };

  jQuery.offset = {
    setOffset: function (elem, options, i) {
      var curPosition,
          curLeft,
          curCSSTop,
          curTop,
          curOffset,
          curCSSLeft,
          calculatePosition,
          position = jQuery.css(elem, "position"),
          curElem = jQuery(elem),
          props = {}; // Set position first, in-case top/left are set even on static elem

      if (position === "static") {
        elem.style.position = "relative";
      }

      curOffset = curElem.offset();
      curCSSTop = jQuery.css(elem, "top");
      curCSSLeft = jQuery.css(elem, "left");
      calculatePosition = (position === "absolute" || position === "fixed") && (curCSSTop + curCSSLeft).indexOf("auto") > -1; // Need to be able to calculate position if either
      // top or left is auto and position is either absolute or fixed

      if (calculatePosition) {
        curPosition = curElem.position();
        curTop = curPosition.top;
        curLeft = curPosition.left;
      } else {
        curTop = parseFloat(curCSSTop) || 0;
        curLeft = parseFloat(curCSSLeft) || 0;
      }

      if (isFunction(options)) {
        // Use jQuery.extend here to allow modification of coordinates argument (gh-1848)
        options = options.call(elem, i, jQuery.extend({}, curOffset));
      }

      if (options.top != null) {
        props.top = options.top - curOffset.top + curTop;
      }

      if (options.left != null) {
        props.left = options.left - curOffset.left + curLeft;
      }

      if ("using" in options) {
        options.using.call(elem, props);
      } else {
        curElem.css(props);
      }
    }
  };
  jQuery.fn.extend({
    // offset() relates an element's border box to the document origin
    offset: function (options) {
      // Preserve chaining for setter
      if (arguments.length) {
        return options === undefined ? this : this.each(function (i) {
          jQuery.offset.setOffset(this, options, i);
        });
      }

      var rect,
          win,
          elem = this[0];

      if (!elem) {
        return;
      } // Return zeros for disconnected and hidden (display: none) elements (gh-2310)
      // Support: IE <=11 only
      // Running getBoundingClientRect on a
      // disconnected node in IE throws an error


      if (!elem.getClientRects().length) {
        return {
          top: 0,
          left: 0
        };
      } // Get document-relative position by adding viewport scroll to viewport-relative gBCR


      rect = elem.getBoundingClientRect();
      win = elem.ownerDocument.defaultView;
      return {
        top: rect.top + win.pageYOffset,
        left: rect.left + win.pageXOffset
      };
    },
    // position() relates an element's margin box to its offset parent's padding box
    // This corresponds to the behavior of CSS absolute positioning
    position: function () {
      if (!this[0]) {
        return;
      }

      var offsetParent,
          offset,
          doc,
          elem = this[0],
          parentOffset = {
        top: 0,
        left: 0
      }; // position:fixed elements are offset from the viewport, which itself always has zero offset

      if (jQuery.css(elem, "position") === "fixed") {
        // Assume position:fixed implies availability of getBoundingClientRect
        offset = elem.getBoundingClientRect();
      } else {
        offset = this.offset(); // Account for the *real* offset parent, which can be the document or its root element
        // when a statically positioned element is identified

        doc = elem.ownerDocument;
        offsetParent = elem.offsetParent || doc.documentElement;

        while (offsetParent && (offsetParent === doc.body || offsetParent === doc.documentElement) && jQuery.css(offsetParent, "position") === "static") {
          offsetParent = offsetParent.parentNode;
        }

        if (offsetParent && offsetParent !== elem && offsetParent.nodeType === 1) {
          // Incorporate borders into its offset, since they are outside its content origin
          parentOffset = jQuery(offsetParent).offset();
          parentOffset.top += jQuery.css(offsetParent, "borderTopWidth", true);
          parentOffset.left += jQuery.css(offsetParent, "borderLeftWidth", true);
        }
      } // Subtract parent offsets and element margins


      return {
        top: offset.top - parentOffset.top - jQuery.css(elem, "marginTop", true),
        left: offset.left - parentOffset.left - jQuery.css(elem, "marginLeft", true)
      };
    },
    // This method will return documentElement in the following cases:
    // 1) For the element inside the iframe without offsetParent, this method will return
    //    documentElement of the parent window
    // 2) For the hidden or detached element
    // 3) For body or html element, i.e. in case of the html node - it will return itself
    //
    // but those exceptions were never presented as a real life use-cases
    // and might be considered as more preferable results.
    //
    // This logic, however, is not guaranteed and can change at any point in the future
    offsetParent: function () {
      return this.map(function () {
        var offsetParent = this.offsetParent;

        while (offsetParent && jQuery.css(offsetParent, "position") === "static") {
          offsetParent = offsetParent.offsetParent;
        }

        return offsetParent || documentElement;
      });
    }
  }); // Create scrollLeft and scrollTop methods

  jQuery.each({
    scrollLeft: "pageXOffset",
    scrollTop: "pageYOffset"
  }, function (method, prop) {
    var top = "pageYOffset" === prop;

    jQuery.fn[method] = function (val) {
      return access(this, function (elem, method, val) {
        // Coalesce documents and windows
        var win;

        if (isWindow(elem)) {
          win = elem;
        } else if (elem.nodeType === 9) {
          win = elem.defaultView;
        }

        if (val === undefined) {
          return win ? win[prop] : elem[method];
        }

        if (win) {
          win.scrollTo(!top ? val : win.pageXOffset, top ? val : win.pageYOffset);
        } else {
          elem[method] = val;
        }
      }, method, val, arguments.length);
    };
  }); // Support: Safari <=7 - 9.1, Chrome <=37 - 49
  // Add the top/left cssHooks using jQuery.fn.position
  // Webkit bug: https://bugs.webkit.org/show_bug.cgi?id=29084
  // Blink bug: https://bugs.chromium.org/p/chromium/issues/detail?id=589347
  // getComputedStyle returns percent when specified for top/left/bottom/right;
  // rather than make the css module depend on the offset module, just check for it here

  jQuery.each(["top", "left"], function (i, prop) {
    jQuery.cssHooks[prop] = addGetHookIf(support.pixelPosition, function (elem, computed) {
      if (computed) {
        computed = curCSS(elem, prop); // If curCSS returns percentage, fallback to offset

        return rnumnonpx.test(computed) ? jQuery(elem).position()[prop] + "px" : computed;
      }
    });
  }); // Create innerHeight, innerWidth, height, width, outerHeight and outerWidth methods

  jQuery.each({
    Height: "height",
    Width: "width"
  }, function (name, type) {
    jQuery.each({
      padding: "inner" + name,
      content: type,
      "": "outer" + name
    }, function (defaultExtra, funcName) {
      // Margin is only for outerHeight, outerWidth
      jQuery.fn[funcName] = function (margin, value) {
        var chainable = arguments.length && (defaultExtra || typeof margin !== "boolean"),
            extra = defaultExtra || (margin === true || value === true ? "margin" : "border");
        return access(this, function (elem, type, value) {
          var doc;

          if (isWindow(elem)) {
            // $( window ).outerWidth/Height return w/h including scrollbars (gh-1729)
            return funcName.indexOf("outer") === 0 ? elem["inner" + name] : elem.document.documentElement["client" + name];
          } // Get document width or height


          if (elem.nodeType === 9) {
            doc = elem.documentElement; // Either scroll[Width/Height] or offset[Width/Height] or client[Width/Height],
            // whichever is greatest

            return Math.max(elem.body["scroll" + name], doc["scroll" + name], elem.body["offset" + name], doc["offset" + name], doc["client" + name]);
          }

          return value === undefined ? // Get width or height on the element, requesting but not forcing parseFloat
          jQuery.css(elem, type, extra) : // Set width or height on the element
          jQuery.style(elem, type, value, extra);
        }, type, chainable ? margin : undefined, chainable);
      };
    });
  });
  jQuery.each(("blur focus focusin focusout resize scroll click dblclick " + "mousedown mouseup mousemove mouseover mouseout mouseenter mouseleave " + "change select submit keydown keypress keyup contextmenu").split(" "), function (i, name) {
    // Handle event binding
    jQuery.fn[name] = function (data, fn) {
      return arguments.length > 0 ? this.on(name, null, data, fn) : this.trigger(name);
    };
  });
  jQuery.fn.extend({
    hover: function (fnOver, fnOut) {
      return this.mouseenter(fnOver).mouseleave(fnOut || fnOver);
    }
  });
  jQuery.fn.extend({
    bind: function (types, data, fn) {
      return this.on(types, null, data, fn);
    },
    unbind: function (types, fn) {
      return this.off(types, null, fn);
    },
    delegate: function (selector, types, data, fn) {
      return this.on(types, selector, data, fn);
    },
    undelegate: function (selector, types, fn) {
      // ( namespace ) or ( selector, types [, fn] )
      return arguments.length === 1 ? this.off(selector, "**") : this.off(types, selector || "**", fn);
    }
  }); // Bind a function to a context, optionally partially applying any
  // arguments.
  // jQuery.proxy is deprecated to promote standards (specifically Function#bind)
  // However, it is not slated for removal any time soon

  jQuery.proxy = function (fn, context) {
    var tmp, args, proxy;

    if (typeof context === "string") {
      tmp = fn[context];
      context = fn;
      fn = tmp;
    } // Quick check to determine if target is callable, in the spec
    // this throws a TypeError, but we will just return undefined.


    if (!isFunction(fn)) {
      return undefined;
    } // Simulated bind


    args = slice.call(arguments, 2);

    proxy = function () {
      return fn.apply(context || this, args.concat(slice.call(arguments)));
    }; // Set the guid of unique handler to the same of original handler, so it can be removed


    proxy.guid = fn.guid = fn.guid || jQuery.guid++;
    return proxy;
  };

  jQuery.holdReady = function (hold) {
    if (hold) {
      jQuery.readyWait++;
    } else {
      jQuery.ready(true);
    }
  };

  jQuery.isArray = Array.isArray;
  jQuery.parseJSON = JSON.parse;
  jQuery.nodeName = nodeName;
  jQuery.isFunction = isFunction;
  jQuery.isWindow = isWindow;
  jQuery.camelCase = camelCase;
  jQuery.type = toType;
  jQuery.now = Date.now;

  jQuery.isNumeric = function (obj) {
    // As of jQuery 3.0, isNumeric is limited to
    // strings and numbers (primitives or objects)
    // that can be coerced to finite numbers (gh-2662)
    var type = jQuery.type(obj);
    return (type === "number" || type === "string") && // parseFloat NaNs numeric-cast false positives ("")
    // ...but misinterprets leading-number strings, particularly hex literals ("0x...")
    // subtraction forces infinities to NaN
    !isNaN(obj - parseFloat(obj));
  }; // Register as a named AMD module, since jQuery can be concatenated with other
  // files that may use define, but not via a proper concatenation script that
  // understands anonymous AMD modules. A named AMD is safest and most robust
  // way to register. Lowercase jquery is used because AMD module names are
  // derived from file names, and jQuery is normally delivered in a lowercase
  // file name. Do this after creating the global so that if an AMD module wants
  // to call noConflict to hide this version of jQuery, it will work.
  // Note that for maximum portability, libraries that are not jQuery should
  // declare themselves as anonymous modules, and avoid setting a global if an
  // AMD loader is present. jQuery is a special case. For more information, see
  // https://github.com/jrburke/requirejs/wiki/Updating-existing-libraries#wiki-anon


  if (true) {
    !(__WEBPACK_AMD_DEFINE_ARRAY__ = [], __WEBPACK_AMD_DEFINE_RESULT__ = (function () {
      return jQuery;
    }).apply(exports, __WEBPACK_AMD_DEFINE_ARRAY__),
				__WEBPACK_AMD_DEFINE_RESULT__ !== undefined && (module.exports = __WEBPACK_AMD_DEFINE_RESULT__));
  }

  var // Map over jQuery in case of overwrite
  _jQuery = window.jQuery,
      // Map over the $ in case of overwrite
  _$ = window.$;

  jQuery.noConflict = function (deep) {
    if (window.$ === jQuery) {
      window.$ = _$;
    }

    if (deep && window.jQuery === jQuery) {
      window.jQuery = _jQuery;
    }

    return jQuery;
  };


  if (!noGlobal) {
    window.jQuery = window.$ = jQuery;
  }

  return jQuery;
});

}),
/* 23 */
(function(module, exports, __webpack_require__) {

//import JsSIP from 'jssip';
var _JsSIP = __webpack_require__(24);

var adapter = __webpack_require__(44);

var _DetectRTC = __webpack_require__(20);

var _PhoneLogger = __webpack_require__(59);

var _PhoneNetwork = __webpack_require__(61);

var PhoneJs = _JsSIP;
var DetectRTC = _DetectRTC;
var PhoneLogger = _PhoneLogger;
var PhoneNetwork = _PhoneNetwork;

var _default = {
  WS_IP: '13.228.213.46',
  WS_PORT: '10080',
  SIP_IP: '125.91.33.50',
  SIP_PORT: '8052'
};

function reloadDetectRTC(callback1, callback2) {
  DetectRTC.load(function () {
    // onDetectRTCLoaded();
    if (callback2 && typeof callback2 == 'function') {
      callback2();
    }

    if (callback1 && typeof callback1 == 'function') {
      callback1();
    }
  });
}

PhoneJs._def = _default;
PhoneJs.DetectRTC = DetectRTC;
PhoneJs.PhoneLogger = PhoneLogger;
PhoneJs.PhoneNetwork = PhoneNetwork;
module.exports = PhoneJs;

module.exports.loadDetectRTC = function (callback) {
  DetectRTC.load(function () {
    reloadDetectRTC(null, callback);

    try {
      if (DetectRTC.MediaDevices[0] && DetectRTC.MediaDevices[0].isCustomLabel) {
        navigator.mediaDevices.getUserMedia({
          audio: true,
          video: true
        }).then(function (stream) {
          var video;

          try {
            video = document.createElement('video');
            video.muted = true;
            video.volume = 0;
            video.src = URL.createObjectURL(stream);
            video.style.display = 'none';
            video.style.opacity = 0;
            (document.body || document.documentElement).appendChild(vide);
          } catch (e) {}

          reloadDetectRTC(function () {
            // release camera
            stream.getTracks().forEach(function (track) {
              track.stop();
            });

            if (video && video.parentNode) {
              video.parentNode.removeChild(video);
            }
          }, callback);
        }).catch(reloadDetectRTC);
        return;
      }
    } catch (e) {}

    if (callback && typeof callback == 'function') {
      callback();
    }
  });
}; //module.exports.JsSIP = _JsSIP;

}),
/* 24 */
(function(module, exports, __webpack_require__) {

"use strict";


var pkg = __webpack_require__(12);

var C = __webpack_require__(1);

var Exceptions = __webpack_require__(6);

var Utils = __webpack_require__(2);

var UA = __webpack_require__(25);

var URI = __webpack_require__(8);

var NameAddrHeader = __webpack_require__(11);

var Grammar = __webpack_require__(3);

var WebSocketInterface = __webpack_require__(43);

var debug = __webpack_require__(0)('JsSIP');

debug('version %s', pkg.version);
/**
 * Expose the JsSIP module.
 */

module.exports = {
  C: C,
  Exceptions: Exceptions,
  Utils: Utils,
  UA: UA,
  URI: URI,
  NameAddrHeader: NameAddrHeader,
  WebSocketInterface: WebSocketInterface,
  Grammar: Grammar,
  // Expose the debug module.
  debug: __webpack_require__(0),

  get name() {
    return pkg.title;
  },

  get version() {
    return pkg.version;
  }

};

}),

(function(module, exports, __webpack_require__) {

"use strict";


function _typeof(obj) {
  if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") {
    _typeof = function _typeof(obj) {
      return typeof obj;
    };
  } else {
    _typeof = function _typeof(obj) {
      return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj;
    };
  }

  return _typeof(obj);
}

function _classCallCheck(instance, Constructor) {
  if (!(instance instanceof Constructor)) {
    throw new TypeError("Cannot call a class as a function");
  }
}

function _possibleConstructorReturn(self, call) {
  if (call && (_typeof(call) === "object" || typeof call === "function")) {
    return call;
  }

  return _assertThisInitialized(self);
}

function _getPrototypeOf(o) {
  _getPrototypeOf = Object.setPrototypeOf ? Object.getPrototypeOf : function _getPrototypeOf(o) {
    return o.__proto__ || Object.getPrototypeOf(o);
  };
  return _getPrototypeOf(o);
}

function _defineProperties(target, props) {
  for (var i = 0; i < props.length; i++) {
    var descriptor = props[i];
    descriptor.enumerable = descriptor.enumerable || false;
    descriptor.configurable = true;
    if ("value" in descriptor) descriptor.writable = true;
    Object.defineProperty(target, descriptor.key, descriptor);
  }
}

function _createClass(Constructor, protoProps, staticProps) {
  if (protoProps) _defineProperties(Constructor.prototype, protoProps);
  if (staticProps) _defineProperties(Constructor, staticProps);
  return Constructor;
}

function _inherits(subClass, superClass) {
  if (typeof superClass !== "function" && superClass !== null) {
    throw new TypeError("Super expression must either be null or a function");
  }

  subClass.prototype = Object.create(superClass && superClass.prototype, {
    constructor: {
      value: subClass,
      writable: true,
      configurable: true
    }
  });
  if (superClass) _setPrototypeOf(subClass, superClass);
}

function _setPrototypeOf(o, p) {
  _setPrototypeOf = Object.setPrototypeOf || function _setPrototypeOf(o, p) {
    o.__proto__ = p;
    return o;
  };

  return _setPrototypeOf(o, p);
}

function _assertThisInitialized(self) {
  if (self === void 0) {
    throw new ReferenceError("this hasn't been initialised - super() hasn't been called");
  }

  return self;
}

var EventEmitter = __webpack_require__(7).EventEmitter;

var JsSIP_C = __webpack_require__(1);

var Registrator = __webpack_require__(26);

var RTCSession = __webpack_require__(17);

var Message = __webpack_require__(38);

var Transactions = __webpack_require__(9);

var Transport = __webpack_require__(39);

var Utils = __webpack_require__(2);

var Exceptions = __webpack_require__(6);

var URI = __webpack_require__(8);

var Grammar = __webpack_require__(3);

var Parser = __webpack_require__(40);

var SIPMessage = __webpack_require__(5);

var sanityCheck = __webpack_require__(41);

var config = __webpack_require__(42);

var debug = __webpack_require__(0)('JsSIP:UA');

var debugerror = __webpack_require__(0)('JsSIP:ERROR:UA');

var PhoneLogger = __webpack_require__(59);

debugerror.log = console.warn.bind(console);
var C = {
  // UA status codes.
  STATUS_INIT: 0,
  STATUS_READY: 1,
  STATUS_USER_CLOSED: 2,
  STATUS_NOT_READY: 3,
  // UA error codes.
  CONFIGURATION_ERROR: 1,
  NETWORK_ERROR: 2
};
/**
 * The User-Agent class.
 * @class JsSIP.UA
 * @param {Object} configuration Configuration parameters.
 * @throws {JsSIP.Exceptions.ConfigurationError} If a configuration parameter is invalid.
 * @throws {TypeError} If no configuration is given.
 */

module.exports =
/*#__PURE__*/
function (_EventEmitter) {
  _inherits(UA, _EventEmitter);

  _createClass(UA, null, [{
    key: "C",
    // Expose C object.
    get: function get() {
      return C;
    }
  }]);

  function setBandwidth(sdp, audio, video) {
    // remove existing bandwidth lines
    sdp = sdp.replace(/b=AS([^\r\n]+\r\n)/g, '');
    sdp = sdp.replace(/b=TIAS([^\r\n]+\r\n)/g, '');
    // audio bandwidth kilobits per second
    if(audio) {
      sdp = sdp.replace(/a=mid:audio\r\n/g, 'a=mid:audio\r\nb=AS:'+audio+'\r\n'+'b=TIAS:'+audio+'\r\n');
    }
    
    // video bandwidth kilobits per second
    if(video) {
      sdp = sdp.replace(/a=mid:video\r\n/g, 'a=mid:video\r\nb=AS:'+video+'\r\n'+'b=TIAS:'+video+'\r\n');
    }
  
    return sdp;
  }

  function UA(configuration) {
    var _this;

    _classCallCheck(this, UA);

    debug('new() [configuration:%o]', configuration);
    _this = _possibleConstructorReturn(this, _getPrototypeOf(UA).call(this));
    _this._cache = {
      credentials: {}
    };
    _this._configuration = Object.assign({}, config.settings);
    _this._dynConfiguration = {};
    _this._dialogs = {}; // User actions outside any session/dialog (MESSAGE).

    _this._applicants = {};
    _this._sessions = {};
    _this._transport = null;
    _this._contact = null;
    _this._status = C.STATUS_INIT;
    _this._error = null;
    _this._transactions = {
      nist: {},
      nict: {},
      ist: {},
      ict: {}
    }; // Custom UA empty object for high level use.

    _this._data = {};
    _this._closeTimer = null; // Check configuration argument.

    if (configuration === undefined) {
      throw new TypeError('Not enough arguments');
    } // Load configuration.


    try {
      _this._loadConfig(configuration);
    } catch (e) {
      _this._status = C.STATUS_NOT_READY;
      _this._error = C.CONFIGURATION_ERROR;
      throw e;
    } // Initialize registrator.


    _this._registrator = new Registrator(_assertThisInitialized(_assertThisInitialized(_this)));
    return _this;
  }

  _createClass(UA, [{
    key: "start",
    // =================
    //  High Level API
    // =================

    /**
     * Connect to the server if status = STATUS_INIT.
     * Resume UA after being closed.
     */
    value: function start() {
      debug('start()');

      if (this._status === C.STATUS_INIT) {
        this._transport.connect();
      } else if (this._status === C.STATUS_USER_CLOSED) {
        debug('restarting UA'); // Disconnect.

        if (this._closeTimer !== null) {
          clearTimeout(this._closeTimer);
          this._closeTimer = null;

          this._transport.disconnect();
        } // Reconnect.


        this._status = C.STATUS_INIT;

        this._transport.connect();
      } else if (this._status === C.STATUS_READY) {
        debug('UA is in READY status, not restarted');
      } else {
        debug('ERROR: connection is down, Auto-Recovery system is trying to reconnect');
      } // Set dynamic configuration.


      this._dynConfiguration.register = this._configuration.register;
    }
    /**
     * Register.
     */

  }, {
    key: "register",
    value: function register() {
      debug('register()');
      this._dynConfiguration.register = true;

      this._registrator.register();
    }
    /**
     * Unregister.
     */

  }, {
    key: "unregister",
    value: function unregister(options) {
      debug('unregister()');
      this._dynConfiguration.register = false;

      this._registrator.unregister(options);
    }
    /**
     * Get the Registrator instance.
     */

  }, {
    key: "registrator",
    value: function registrator() {
      return this._registrator;
    }
    /**
     * Registration state.
     */

  }, {
    key: "isRegistered",
    value: function isRegistered() {
      return this._registrator.registered;
    }
    /**
     * Connection state.
     */

  }, {
    key: "isConnected",
    value: function isConnected() {
      return this._transport.isConnected();
    }
    /**
     * Make an outgoing call.
     *
     * -param {String} target
     * -param {Object} [options]
     *
     * -throws {TypeError}
     *
     */

  }, {
    key: "call",
    value: function call(target, options) {
      debug('call()');
      var session = new RTCSession(this);
      session.connect(target, options);
      return session;
    }
    /**
     * Send a message.
     *
     * -param {String} target
     * -param {String} body
     * -param {Object} [options]
     *
     * -throws {TypeError}
     *
     */

  },{
    key: 'setVideoBandwidth',
    value: function setVideoBandwidth(val) {
      debug('setVideoBandwidth()');

      this._videoBandwidth = val;
    }

  },{
    key: 'setAudioBandwidth',
    value: function setAudioBandwidth(val) {
      debug('setAudioBandwidth()');

      this._audioBandwidth = val;
    }

  }, {
    key: "sendMessage",
    value: function sendMessage(target, body, options) {
      debug('sendMessage()');
      var message = new Message(this);
      message.send(target, body, options);
      return message;
    }
    /**
     * Terminate ongoing sessions.
     */

  }, {
    key: "terminateSessions",
    value: function terminateSessions(options) {
      debug('terminateSessions()');

      for (var idx in this._sessions) {
        if (!this._sessions[idx].isEnded()) {
          this._sessions[idx].terminate(options);
        }
      }
    }
    /**
     * Gracefully close.
     *
     */

  }, {
    key: "stop",
    value: function stop() {
      var _this2 = this;

      debug('stop()'); // Remove dynamic settings.

      this._dynConfiguration = {};

      if (this._status === C.STATUS_USER_CLOSED) {
        debug('UA already closed');
        return;
      } // Close registrator.


      this._registrator.close(); // If there are session wait a bit so CANCEL/BYE can be sent and their responses received.


      var num_sessions = Object.keys(this._sessions).length; // Run  _terminate_ on every Session.

      for (var session in this._sessions) {
        if (Object.prototype.hasOwnProperty.call(this._sessions, session)) {
          debug("closing session ".concat(session));

          try {
            this._sessions[session].terminate();
          } catch (error) {}
        }
      } // Run  _close_ on every applicant.


      for (var applicant in this._applicants) {
        if (Object.prototype.hasOwnProperty.call(this._applicants, applicant)) try {
          this._applicants[applicant].close();
        } catch (error) {}
      }

      this._status = C.STATUS_USER_CLOSED;
      var num_transactions = Object.keys(this._transactions.nict).length + Object.keys(this._transactions.nist).length + Object.keys(this._transactions.ict).length + Object.keys(this._transactions.ist).length;

      if (num_transactions === 0 && num_sessions === 0) {
        this._transport.disconnect();
      } else {
        this._closeTimer = setTimeout(function () {
          _this2._closeTimer = null;

          _this2._transport.disconnect();
        }, 2000);
      }
    }
    /**
     * Normalice a string into a valid SIP request URI
     * -param {String} target
     * -returns {JsSIP.URI|undefined}
     */

  }, {
    key: "normalizeTarget",
    value: function normalizeTarget(target) {
      return Utils.normalizeTarget(target, this._configuration.hostport_params);
    }
    /**
     * Allow retrieving configuration and autogenerated fields in runtime.
     */

  }, {
    key: "get",
    value: function get(parameter) {
      switch (parameter) {
        case 'realm':
          return this._configuration.realm;

        case 'ha1':
          return this._configuration.ha1;

        default:
          debugerror('get() | cannot get "%s" parameter in runtime', parameter);
          return undefined;
      }
    }
    /**
     * Allow configuration changes in runtime.
     * Returns true if the parameter could be set.
     */

  }, {
    key: "set",
    value: function set(parameter, value) {
      switch (parameter) {
        case 'password':
          {
            this._configuration.password = String(value);
            break;
          }

        case 'realm':
          {
            this._configuration.realm = String(value);
            break;
          }

        case 'ha1':
          {
            this._configuration.ha1 = String(value); // Delete the plain SIP password.

            this._configuration.password = null;
            break;
          }

        case 'display_name':
          {
            if (Grammar.parse("\"".concat(value, "\""), 'display_name') === -1) {
              debugerror('set() | wrong "display_name"');
              return false;
            }

            this._configuration.display_name = value;
            break;
          }

        default:
          debugerror('set() | cannot set "%s" parameter in runtime', parameter);
          return false;
      }

      return true;
    } // ==========================
    // Event Handlers.
    // ==========================

    /**
     * new Transaction
     */

  }, {
    key: "newTransaction",
    value: function newTransaction(transaction) {
      this._transactions[transaction.type][transaction.id] = transaction;
      this.emit('newTransaction', {
        transaction: transaction
      });
    }
    /**
     * Transaction destroyed.
     */

  }, {
    key: "destroyTransaction",
    value: function destroyTransaction(transaction) {
      delete this._transactions[transaction.type][transaction.id];
      this.emit('transactionDestroyed', {
        transaction: transaction
      });
    }
    /**
     * new Dialog
     */

  }, {
    key: "newDialog",
    value: function newDialog(dialog) {
      this._dialogs[dialog.id] = dialog;
    }
    /**
     * Dialog destroyed.
     */

  }, {
    key: "destroyDialog",
    value: function destroyDialog(dialog) {
      delete this._dialogs[dialog.id];
    }
    /**
     *  new Message
     */

  }, {
    key: "newMessage",
    value: function newMessage(message, data) {
      this._applicants[message] = message;
      this.emit('newMessage', data);
    }
    /**
     *  Message destroyed.
     */

  }, {
    key: "destroyMessage",
    value: function destroyMessage(message) {
      delete this._applicants[message];
    }
    /**
     * new RTCSession
     */

  }, {
    key: "newRTCSession",
    value: function newRTCSession(session, data) {
      var videoBandwidth = this._videoBandwidth;
      var audioBandwidth = this._audioBandwidth;

      session.on('sdp', function (e) {
        var sdp = e.sdp;
                      
        e.sdp = setBandwidth(sdp, audioBandwidth, videoBandwidth);
      });
      this._sessions[session.id] = session;
      this.emit('newRTCSession', data);
    }
    /**
     * RTCSession destroyed.
     */

  }, {
    key: "destroyRTCSession",
    value: function destroyRTCSession(session) {
      delete this._sessions[session.id];
    }
    /**
     * Registered
     */

  }, {
    key: "registered",
    value: function registered(data) {
      var user;
      if (data.response.headers.From[0]) {
          var _from = data.response.headers.From[0].raw;
          // const from = _from.match(new RegExp(' ' + "(.*)" + ';'));
          // user = from[1] ? from[1] : '';
          user = _from;
      }
      PhoneLogger.user = user;
      // console.log(PhoneLogger.user);
      PhoneLogger.info({
        event: "registered",
        data: data
      });
      this.emit('registered', data);
    }
    /**
     * Unregistered
     */

  }, {
    key: "unregistered",
    value: function unregistered(data) {
      PhoneLogger.info({
        event: "unregistered",
        data: data
      });
      this.emit('unregistered', data);
    }
    /**
     * Registration Failed
     */

  }, {
    key: "registrationFailed",
    value: function registrationFailed(data) {
      PhoneLogger.error({
        event: "registrationFailed",
        data: data
      });
      this.emit('registrationFailed', data);
    } // =========================
    // ReceiveRequest.
    // =========================

    /**
     * Request reception
     */

  }, {
    key: "receiveRequest",
    value: function receiveRequest(request) {
      var method = request.method; // Check that request URI points to us.

      if (request.ruri.user !== this._configuration.uri.user && request.ruri.user !== this._contact.uri.user) {
        debug('Request-URI does not point to us');

        if (request.method !== JsSIP_C.ACK) {
          request.reply_sl(404);
        }

        return;
      } // Check request URI scheme.


      if (request.ruri.scheme === JsSIP_C.SIPS) {
        request.reply_sl(416);
        return;
      } // Check transaction.


      if (Transactions.checkTransaction(this, request)) {
        return;
      } // Create the server transaction.


      if (method === JsSIP_C.INVITE) {
        /* eslint-disable no-new */
        new Transactions.InviteServerTransaction(this, this._transport, request);
        /* eslint-enable no-new */
      } else if (method !== JsSIP_C.ACK && method !== JsSIP_C.CANCEL) {
        /* eslint-disable no-new */
        new Transactions.NonInviteServerTransaction(this, this._transport, request);
        /* eslint-enable no-new */
      }
      /* RFC3261 12.2.2
       * Requests that do not change in any way the state of a dialog may be
       * received within a dialog (for example, an OPTIONS request).
       * They are processed as if they had been received outside the dialog.
       */


      if (method === JsSIP_C.OPTIONS) {
        request.reply(200);
      } else if (method === JsSIP_C.MESSAGE) {
        if (this.listeners('newMessage').length === 0) {
          request.reply(405);
          return;
        }

        var message = new Message(this);
        message.init_incoming(request);
      } else if (method === JsSIP_C.INVITE) {
        // Initial INVITE.
        if (!request.to_tag && this.listeners('newRTCSession').length === 0) {
          request.reply(405);
          return;
        }
      }

      var dialog;
      var session; // Initial Request.

      if (!request.to_tag) {
        switch (method) {
          case JsSIP_C.INVITE:
            if (window.RTCPeerConnection) {
              // TODO
              if (request.hasHeader('replaces')) {
                var replaces = request.replaces;
                dialog = this._findDialog(replaces.call_id, replaces.from_tag, replaces.to_tag);

                if (dialog) {
                  session = dialog.owner;

                  if (!session.isEnded()) {
                    session.receiveRequest(request);
                  } else {
                    request.reply(603);
                  }
                } else {
                  request.reply(481);
                }
              } else {
                session = new RTCSession(this);
                session.init_incoming(request);
              }
            } else {
              debugerror('INVITE received but WebRTC is not supported');
              request.reply(488);
            }

            break;

          case JsSIP_C.BYE:
            // Out of dialog BYE received.
            request.reply(481);
            break;

          case JsSIP_C.CANCEL:
            session = this._findSession(request);

            if (session) {
              session.receiveRequest(request);
            } else {
              debug('received CANCEL request for a non existent session');
            }

            break;

          case JsSIP_C.ACK:
            /* Absorb it.
             * ACK request without a corresponding Invite Transaction
             * and without To tag.
             */
            break;

          case JsSIP_C.NOTIFY:
            // Receive new sip event.
            this.emit('sipEvent', {
              event: request.event,
              request: request
            });
            request.reply(200);
            break;

          default:
            request.reply(405);
            break;
        }
      } // In-dialog request.
      else {
          dialog = this._findDialog(request.call_id, request.from_tag, request.to_tag);

          if (dialog) {
            dialog.receiveRequest(request);
          } else if (method === JsSIP_C.NOTIFY) {
            session = this._findSession(request);

            if (session) {
              session.receiveRequest(request);
            } else {
              debug('received NOTIFY request for a non existent subscription');
              request.reply(481, 'Subscription does not exist');
            }
          }
          /* RFC3261 12.2.2
           * Request with to tag, but no matching dialog found.
           * Exception: ACK for an Invite request for which a dialog has not
           * been created.
           */
          else if (method !== JsSIP_C.ACK) {
              request.reply(481);
            }
        }
    } // =================
    // Utils.
    // =================

    /**
     * Get the session to which the request belongs to, if any.
     */

  }, {
    key: "_findSession",
    value: function _findSession(_ref) {
      var call_id = _ref.call_id,
          from_tag = _ref.from_tag,
          to_tag = _ref.to_tag;
      var sessionIDa = call_id + from_tag;
      var sessionA = this._sessions[sessionIDa];
      var sessionIDb = call_id + to_tag;
      var sessionB = this._sessions[sessionIDb];

      if (sessionA) {
        return sessionA;
      } else if (sessionB) {
        return sessionB;
      } else {
        return null;
      }
    }
    /**
     * Get the dialog to which the request belongs to, if any.
     */

  }, {
    key: "_findDialog",
    value: function _findDialog(call_id, from_tag, to_tag) {
      var id = call_id + from_tag + to_tag;
      var dialog = this._dialogs[id];

      if (dialog) {
        return dialog;
      } else {
        id = call_id + to_tag + from_tag;
        dialog = this._dialogs[id];

        if (dialog) {
          return dialog;
        } else {
          return null;
        }
      }
    }
  }, {
    key: "_loadConfig",
    value: function _loadConfig(configuration) {
      // Check and load the given configuration.
      try {
        config.load(this._configuration, configuration);
      } catch (e) {
        throw e;
      } // Post Configuration Process.
      // Allow passing 0 number as display_name.


      if (this._configuration.display_name === 0) {
        this._configuration.display_name = '0';
      } // Instance-id for GRUU.


      if (!this._configuration.instance_id) {
        this._configuration.instance_id = Utils.newUUID();
      } // Jssip_id instance parameter. Static random tag of length 5.


      this._configuration.jssip_id = Utils.createRandomToken(5); // String containing this._configuration.uri without scheme and user.

      var hostport_params = this._configuration.uri.clone();

      hostport_params.user = null;
      this._configuration.hostport_params = hostport_params.toString().replace(/^sip:/i, ''); // Transport.

      try {
        this._transport = new Transport(this._configuration.sockets, {
          // Recovery options.
          max_interval: this._configuration.connection_recovery_max_interval,
          min_interval: this._configuration.connection_recovery_min_interval
        }); // Transport event callbacks.

        this._transport.onconnecting = onTransportConnecting.bind(this);
        this._transport.onconnect = onTransportConnect.bind(this);
        this._transport.ondisconnect = onTransportDisconnect.bind(this);
        this._transport.ondata = onTransportData.bind(this);
      } catch (e) {
        debugerror(e);
        throw new Exceptions.ConfigurationError('sockets', this._configuration.sockets);
      } // Remove sockets instance from configuration object.


      delete this._configuration.sockets; // Check whether authorization_user is explicitly defined.
      // Take 'this._configuration.uri.user' value if not.

      if (!this._configuration.authorization_user) {
        this._configuration.authorization_user = this._configuration.uri.user;
      } // If no 'registrar_server' is set use the 'uri' value without user portion and
      // without URI params/headers.


      if (!this._configuration.registrar_server) {
        var registrar_server = this._configuration.uri.clone();

        registrar_server.user = null;
        registrar_server.clearParams();
        registrar_server.clearHeaders();
        this._configuration.registrar_server = registrar_server;
      } // User no_answer_timeout.


      this._configuration.no_answer_timeout *= 1000; // Via Host.

      if (this._configuration.contact_uri) {
        this._configuration.via_host = this._configuration.contact_uri.host;
      } // Contact URI.
      else {
          this._configuration.contact_uri = new URI('sip', Utils.createRandomToken(8), this._configuration.via_host, null, {
            transport: 'ws'
          });
        }

      this._contact = {
        pub_gruu: null,
        temp_gruu: null,
        uri: this._configuration.contact_uri,
        toString: function toString() {
          var options = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};
          var anonymous = options.anonymous || null;
          var outbound = options.outbound || null;
          var contact = '<';

          if (anonymous) {
            contact += this.temp_gruu || 'sip:anonymous@anonymous.invalid;transport=ws';
          } else {
            contact += this.pub_gruu || this.uri.toString();
          }
          
          contact += '>';
          return contact;
        }
      }; // Seal the configuration.

      var writable_parameters = ['password', 'realm', 'ha1', 'display_name', 'register'];

      for (var parameter in this._configuration) {
        if (Object.prototype.hasOwnProperty.call(this._configuration, parameter)) {
          if (writable_parameters.indexOf(parameter) !== -1) {
            Object.defineProperty(this._configuration, parameter, {
              writable: true,
              configurable: false
            });
          } else {
            Object.defineProperty(this._configuration, parameter, {
              writable: false,
              configurable: false
            });
          }
        }
      }

      debug('configuration parameters after validation:');

      for (var _parameter in this._configuration) {
        // Only show the user user configurable parameters.
        if (Object.prototype.hasOwnProperty.call(config.settings, _parameter)) {
          switch (_parameter) {
            case 'uri':
            case 'registrar_server':
              debug("- ".concat(_parameter, ": ").concat(this._configuration[_parameter]));
              break;

            case 'password':
            case 'ha1':
              debug("- ".concat(_parameter, ": NOT SHOWN"));
              break;

            default:
              debug("- ".concat(_parameter, ": ").concat(JSON.stringify(this._configuration[_parameter])));
          }
        }
      }

      return;
    }
  }, {
    key: "C",
    get: function get() {
      return C;
    }
  }, {
    key: "status",
    get: function get() {
      return this._status;
    }
  }, {
    key: "contact",
    get: function get() {
      return this._contact;
    }
  }, {
    key: "configuration",
    get: function get() {
      return this._configuration;
    }
  }, {
    key: "transport",
    get: function get() {
      return this._transport;
    }
  }]);

  return UA;
}(EventEmitter);
/**
 * Transport event handlers
 */
// Transport connecting event.


function onTransportConnecting(data) {
  this.emit('connecting', data);
} // Transport connected event.


function onTransportConnect(data) {
  if (this._status === C.STATUS_USER_CLOSED) {
    return;
  }

  this._status = C.STATUS_READY;
  this._error = null;
  this.emit('connected', data);

  if (this._dynConfiguration.register) {
    this._registrator.register();
  }
} // Transport disconnected event.


function onTransportDisconnect(data) {
  // Run _onTransportError_ callback on every client transaction using _transport_.
  var client_transactions = ['nict', 'ict', 'nist', 'ist'];

  for (var _i = 0; _i < client_transactions.length; _i++) {
    var type = client_transactions[_i];

    for (var id in this._transactions[type]) {
      if (Object.prototype.hasOwnProperty.call(this._transactions[type], id)) {
        this._transactions[type][id].onTransportError();
      }
    }
  }

  this.emit('disconnected', data); // Call registrator _onTransportClosed_.

  this._registrator.onTransportClosed();

  if (this._status !== C.STATUS_USER_CLOSED) {
    this._status = C.STATUS_NOT_READY;
    this._error = C.NETWORK_ERROR;
  }
} // Transport data event.


function onTransportData(data) {
  var transport = data.transport;
  var message = data.message;
  message = Parser.parseMessage(message, this);

  if (!message) {
    return;
  }

  if (this._status === C.STATUS_USER_CLOSED && message instanceof SIPMessage.IncomingRequest) {
    return;
  } // Do some sanity check.


  if (!sanityCheck(message, this, transport)) {
    return;
  }

  if (message instanceof SIPMessage.IncomingRequest) {
    message.transport = transport;
    this.receiveRequest(message);
  } else if (message instanceof SIPMessage.IncomingResponse) {
    /* Unike stated in 18.1.2, if a response does not match
    * any transaction, it is discarded here and no passed to the core
    * in order to be discarded there.
    */
    var transaction;

    switch (message.method) {
      case JsSIP_C.INVITE:
        transaction = this._transactions.ict[message.via_branch];

        if (transaction) {
          transaction.receiveResponse(message);
        }

        break;

      case JsSIP_C.ACK:
        // Just in case ;-).
        break;

      default:
        transaction = this._transactions.nict[message.via_branch];

        if (transaction) {
          transaction.receiveResponse(message);
        }

        break;
    }
  }
}

}),
/* 26 */
(function(module, exports, __webpack_require__) {

"use strict";


function _classCallCheck(instance, Constructor) {
  if (!(instance instanceof Constructor)) {
    throw new TypeError("Cannot call a class as a function");
  }
}

function _defineProperties(target, props) {
  for (var i = 0; i < props.length; i++) {
    var descriptor = props[i];
    descriptor.enumerable = descriptor.enumerable || false;
    descriptor.configurable = true;
    if ("value" in descriptor) descriptor.writable = true;
    Object.defineProperty(target, descriptor.key, descriptor);
  }
}

function _createClass(Constructor, protoProps, staticProps) {
  if (protoProps) _defineProperties(Constructor.prototype, protoProps);
  if (staticProps) _defineProperties(Constructor, staticProps);
  return Constructor;
}

var Utils = __webpack_require__(2);

var JsSIP_C = __webpack_require__(1);

var SIPMessage = __webpack_require__(5);

var RequestSender = __webpack_require__(10);

var debug = __webpack_require__(0)('JsSIP:Registrator');

var MIN_REGISTER_EXPIRES = 10; // In seconds.

module.exports =
/*#__PURE__*/
function () {
  function Registrator(ua, transport) {
    _classCallCheck(this, Registrator);

    var reg_id = 1; // Force reg_id to 1.

    this._ua = ua;
    this._transport = transport;
    this._registrar = ua.configuration.registrar_server;
    this._expires = ua.configuration.register_expires; // Call-ID and CSeq values RFC3261 10.2.

    this._call_id = Utils.createRandomToken(22);
    this._cseq = 0;
    this._to_uri = ua.configuration.uri;
    this._registrationTimer = null; // Ongoing Register request.

    this._registering = false; // Set status.

    this._registered = false; // Contact header.

    this._contact = this._ua.contact.toString(); // Sip.ice media feature tag (RFC 5768).

    this._contact += ';+sip.ice'; // Custom headers for REGISTER and un-REGISTER.

    this._extraHeaders = []; // Custom Contact header params for REGISTER and un-REGISTER.

    this._extraContactParams = '';

    if (reg_id) {
      this._contact += ";reg-id=".concat(reg_id);
      this._contact += ";+sip.instance=\"<urn:uuid:".concat(this._ua.configuration.instance_id, ">\"");
    }
   
  }

  _createClass(Registrator, [{
    key: "setExtraHeaders",
    value: function setExtraHeaders(extraHeaders) {
      if (!Array.isArray(extraHeaders)) {
        extraHeaders = [];
      }

      this._extraHeaders = extraHeaders.slice();
    }
  }, {
    key: "setExtraContactParams",
    value: function setExtraContactParams(extraContactParams) {
      if (!(extraContactParams instanceof Object)) {
        extraContactParams = {};
      } // Reset it.


      this._extraContactParams = '';

      for (var param_key in extraContactParams) {
        if (Object.prototype.hasOwnProperty.call(extraContactParams, param_key)) {
          var param_value = extraContactParams[param_key];
          this._extraContactParams += ";".concat(param_key);

          if (param_value) {
            this._extraContactParams += "=".concat(param_value);
          }
        }
      }
    }
  }, {
    key: "register",
    value: function register() {
      var _this = this;
      if (this._registering) {
        debug('Register request in progress...');
        return;
      }

      var extraHeaders = this._extraHeaders.slice();

      extraHeaders.push("Contact: ".concat(this._contact, ";expires=").concat(this._expires).concat(this._extraContactParams));
      extraHeaders.push("Expires: ".concat(this._expires));
      var request = new SIPMessage.OutgoingRequest(JsSIP_C.REGISTER, this._registrar, this._ua, {
        'to_uri': this._to_uri,
        'call_id': this._call_id,
        'cseq': this._cseq += 1
      }, extraHeaders);

      var request_sender = new RequestSender(this._ua, request, {
        onRequestTimeout: function onRequestTimeout() {
          _this._registrationFailure(null, JsSIP_C.causes.REQUEST_TIMEOUT);
        },
        onTransportError: function onTransportError() {
          _this._registrationFailure(null, JsSIP_C.causes.CONNECTION_ERROR);
        },
        // Increase the CSeq on authentication.
        onAuthenticated: function onAuthenticated() {
          _this._cseq += 1;
        },
        onReceiveResponse: function onReceiveResponse(response) {
          // Discard responses to older REGISTER/un-REGISTER requests.
          if (response.cseq !== _this._cseq) {
            return;
          } // Clear registration timer.


          if (_this._registrationTimer !== null) {
            clearTimeout(_this._registrationTimer);
            _this._registrationTimer = null;
          }

          switch (true) {
            case /^1[0-9]{2}$/.test(response.status_code):
              {
                // Ignore provisional responses.
                break;
              }

            case /^2[0-9]{2}$/.test(response.status_code):
              {
                _this._registering = false;

                if (!response.hasHeader('Contact')) {
                  debug('no Contact header in response to REGISTER, response ignored');
                  break;
                }

                var contacts = response.headers['Contact'].reduce(function (a, b) {
                  return a.concat(b.parsed);
                }, []); // Get the Contact pointing to us and update the expires value accordingly.

                var contact = contacts.find(function (element) {
                  return element.uri.user === _this._ua.contact.uri.user;
                });

                if (!contact) {
                  debug('no Contact header pointing to us, response ignored');
                  break;
                }

                var expires = contact.getParam('expires');

                if (!expires && response.hasHeader('expires')) {
                  expires = response.getHeader('expires');
                }

                if (!expires) {
                  expires = _this._expires;
                }

                expires = Number(expires);
                if (expires < MIN_REGISTER_EXPIRES) expires = MIN_REGISTER_EXPIRES; // Re-Register or emit an event before the expiration interval has elapsed.
                // For that, decrease the expires value. ie: 3 seconds.

                _this._registrationTimer = setTimeout(function () {
                  _this._registrationTimer = null; // If there are no listeners for registrationExpiring, renew registration.
                  // If there are listeners, let the function listening do the register call.

                  if (_this._ua.listeners('registrationExpiring').length === 0) {
                    _this.register();
                  } else {
                    _this._ua.emit('registrationExpiring');
                  }
                }, expires * 1000 - 5000); // Save gruu values.

                if (contact.hasParam('temp-gruu')) {
                  _this._ua.contact.temp_gruu = contact.getParam('temp-gruu').replace(/"/g, '');
                }

                if (contact.hasParam('pub-gruu')) {
                  _this._ua.contact.pub_gruu = contact.getParam('pub-gruu').replace(/"/g, '');
                }

                if (!_this._registered) {
                  _this._registered = true;

                  _this._ua.registered({
                    response: response
                  });
                }

                break;
              }
            // Interval too brief RFC3261 10.2.8.

            case /^423$/.test(response.status_code):
              {
                if (response.hasHeader('min-expires')) {
                  // Increase our registration interval to the suggested minimum.
                  _this._expires = Number(response.getHeader('min-expires'));
                  if (_this._expires < MIN_REGISTER_EXPIRES) _this._expires = MIN_REGISTER_EXPIRES; // Attempt the registration again immediately.

                  _this.register();
                } else {
                  // This response MUST contain a Min-Expires header field.
                  debug('423 response received for REGISTER without Min-Expires');

                  _this._registrationFailure(response, JsSIP_C.causes.SIP_FAILURE_CODE);
                }

                break;
              }

            default:
              {
                var cause = Utils.sipErrorCause(response.status_code);

                _this._registrationFailure(response, cause);
              }
          }
        }
      });
      this._registering = true;
      request_sender.send();

    }
  }, {
    key: "unregister",
    value: function unregister() {
      var _this2 = this;

      var options = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};

      if (!this._registered) {
        debug('already unregistered');
        return;
      }

      this._registered = false; // Clear the registration timer.

      if (this._registrationTimer !== null) {
        clearTimeout(this._registrationTimer);
        this._registrationTimer = null;
      }

      var extraHeaders = this._extraHeaders.slice();

      if (options.all) {
        extraHeaders.push("Contact: *".concat(this._extraContactParams));
      } else {
        extraHeaders.push("Contact: ".concat(this._contact, ";expires=0").concat(this._extraContactParams));
      }

      extraHeaders.push('Expires: 0');
      var request = new SIPMessage.OutgoingRequest(JsSIP_C.REGISTER, this._registrar, this._ua, {
        'to_uri': this._to_uri,
        'call_id': this._call_id,
        'cseq': this._cseq += 1
      }, extraHeaders);
      var request_sender = new RequestSender(this._ua, request, {
        onRequestTimeout: function onRequestTimeout() {
          _this2._unregistered(null, JsSIP_C.causes.REQUEST_TIMEOUT);
        },
        onTransportError: function onTransportError() {
          _this2._unregistered(null, JsSIP_C.causes.CONNECTION_ERROR);
        },
        // Increase the CSeq on authentication.
        onAuthenticated: function onAuthenticated() {
          _this2._cseq += 1;
        },
        onReceiveResponse: function onReceiveResponse(response) {
          switch (true) {
            case /^1[0-9]{2}$/.test(response.status_code):
              // Ignore provisional responses.
              break;

            case /^2[0-9]{2}$/.test(response.status_code):
              _this2._unregistered(response);

              break;

            default:
              {
                var cause = Utils.sipErrorCause(response.status_code);

                _this2._unregistered(response, cause);
              }
          }
        }
      });
      request_sender.send();
    }
  }, {
    key: "close",
    value: function close() {
      if (this._registered) {
        this.unregister();
      }
    }
  }, {
    key: "onTransportClosed",
    value: function onTransportClosed() {
      this._registering = false;

      if (this._registrationTimer !== null) {
        clearTimeout(this._registrationTimer);
        this._registrationTimer = null;
      }

      if (this._registered) {
        this._registered = false;

        this._ua.unregistered({});
      }
    }
  }, {
    key: "_registrationFailure",
    value: function _registrationFailure(response, cause) {
      this._registering = false;

      this._ua.registrationFailed({
        response: response || null,
        cause: cause
      });

      if (this._registered) {
        this._registered = false;

        this._ua.unregistered({
          response: response || null,
          cause: cause
        });
      }
    }
  }, {
    key: "_unregistered",
    value: function _unregistered(response, cause) {
      this._registering = false;
      this._registered = false;

      this._ua.unregistered({
        response: response || null,
        cause: cause || null
      });
    }
  }, {
    key: "registered",
    get: function get() {
      return this._registered;
    }
  }]);

  return Registrator;
}();

}),
/* 27 */
(function(module, exports, __webpack_require__) {

var toIntIfInt = function (v) {
  return String(Number(v)) === v ? Number(v) : v;
};

var attachProperties = function (match, location, names, rawName) {
  if (rawName && !names) {
    location[rawName] = toIntIfInt(match[1]);
  } else {
    for (var i = 0; i < names.length; i += 1) {
      if (match[i + 1] != null) {
        location[names[i]] = toIntIfInt(match[i + 1]);
      }
    }
  }
};

var parseReg = function (obj, location, content) {
  var needsBlank = obj.name && obj.names;

  if (obj.push && !location[obj.push]) {
    location[obj.push] = [];
  } else if (needsBlank && !location[obj.name]) {
    location[obj.name] = {};
  }

  var keyLocation = obj.push ? {} : // blank object that will be pushed
  needsBlank ? location[obj.name] : location; // otherwise, named location or root

  attachProperties(content.match(obj.reg), keyLocation, obj.names, obj.name);

  if (obj.push) {
    location[obj.push].push(keyLocation);
  }
};

var grammar = __webpack_require__(14);

var validLine = RegExp.prototype.test.bind(/^([a-z])=(.*)/);

exports.parse = function (sdp) {

  var session = {},
      media = [],
      location = session; // points at where properties go under (one of the above)
  // parse lines we understand

  sdp.split(/(\r\n|\r|\n)/).filter(validLine).forEach(function (l) {
    var type = l[0];
    var content = l.slice(2);
    if (type === 'm') {
      media.push({
        rtp: [],
        fmtp: []
      });
      location = media[media.length - 1]; // point at latest media line
    }

    for (var j = 0; j < (grammar[type] || []).length; j += 1) {
      var obj = grammar[type][j];

      if (obj.reg.test(content)) {
        return parseReg(obj, location, content);
      }
    }
  });
  session.media = media; // link it up

  return session;
};

var paramReducer = function (acc, expr) {
  var s = expr.split(/=(.+)/, 2);

  if (s.length === 2) {
    acc[s[0]] = toIntIfInt(s[1]);
  } else if (s.length === 1 && expr.length > 1) {
    acc[s[0]] = undefined;
  }

  return acc;
};

exports.parseParams = function (str) {
  return str.split(/\;\s?/).reduce(paramReducer, {});
}; // For backward compatibility - alias will be removed in 3.0.0


exports.parseFmtpConfig = exports.parseParams;

exports.parsePayloads = function (str) {
  return str.split(' ').map(Number);
};

exports.parseRemoteCandidates = function (str) {
  var candidates = [];
  var parts = str.split(' ').map(toIntIfInt);

  for (var i = 0; i < parts.length; i += 3) {
    candidates.push({
      component: parts[i],
      ip: parts[i + 1],
      port: parts[i + 2]
    });
  }

  return candidates;
};

exports.parseImageAttributes = function (str) {
  return str.split(' ').map(function (item) {
    return item.substring(1, item.length - 1).split(',').reduce(paramReducer, {});
  });
};

exports.parseSimulcastStreamList = function (str) {
  return str.split(';').map(function (stream) {
    return stream.split(',').map(function (format) {
      var scid,
          paused = false;

      if (format[0] !== '~') {
        scid = toIntIfInt(format);
      } else {
        scid = toIntIfInt(format.substring(1, format.length));
        paused = true;
      }

      return {
        scid: scid,
        paused: paused
      };
    });
  });
};

}),
/* 28 */
(function(module, exports, __webpack_require__) {

var grammar = __webpack_require__(14); // customized janus.format - discards excess arguments and can void middle ones


var formatRegExp = /%[sdv%]/g;

var format = function (formatStr) {
  var i = 1;
  var args = arguments;
  var len = args.length;
  return formatStr.replace(formatRegExp, function (x) {
    if (i >= len) {
      return x; // missing argument
    }

    var arg = args[i];
    i += 1;

    switch (x) {
      case '%%':
        return '%';

      case '%s':
        return String(arg);

      case '%d':
        return Number(arg);

      case '%v':
        return '';
    }
  }); // NB: we discard excess arguments - they are typically undefined from makeLine
};

var makeLine = function (type, obj, location) {
  var str = obj.format instanceof Function ? obj.format(obj.push ? location : location[obj.name]) : obj.format;
  var args = [type + '=' + str];

  if (obj.names) {
    for (var i = 0; i < obj.names.length; i += 1) {
      var n = obj.names[i];

      if (obj.name) {
        args.push(location[obj.name][n]);
      } else {
        // for mLine and push attributes
        args.push(location[obj.names[i]]);
      }
    }
  } else {
    args.push(location[obj.name]);
  }

  return format.apply(null, args);
}; // RFC specified order
// TODO: extend this with all the rest


var defaultOuterOrder = ['v', 'o', 's', 'i', 'u', 'e', 'p', 'c', 'b', 't', 'r', 'z', 'a'];
var defaultInnerOrder = ['i', 'c', 'b', 'a'];

module.exports = function (session, opts) {
  opts = opts || {}; // ensure certain properties exist

  if (session.version == null) {
    session.version = 0; // 'v=0' must be there (only defined version atm)
  }

  if (session.name == null) {
    session.name = ' '; // 's= ' must be there if no meaningful name set
  }

  session.media.forEach(function (mLine) {
    if (mLine.payloads == null) {
      mLine.payloads = '';
    }
  });
  var outerOrder = opts.outerOrder || defaultOuterOrder;
  var innerOrder = opts.innerOrder || defaultInnerOrder;
  var sdp = []; // loop through outerOrder for matching properties on session

  outerOrder.forEach(function (type) {
    grammar[type].forEach(function (obj) {
      if (obj.name in session && session[obj.name] != null) {
        sdp.push(makeLine(type, obj, session));
      } else if (obj.push in session && session[obj.push] != null) {
        session[obj.push].forEach(function (el) {
          sdp.push(makeLine(type, obj, el));
        });
      }
    });
  }); // then for each media line, follow the innerOrder

  session.media.forEach(function (mLine) {
    sdp.push(makeLine('m', grammar.m[0], mLine));
    innerOrder.forEach(function (type) {
      grammar[type].forEach(function (obj) {
        if (obj.name in mLine && mLine[obj.name] != null) {
          sdp.push(makeLine(type, obj, mLine));
        } else if (obj.push in mLine && mLine[obj.push] != null) {
          mLine[obj.push].forEach(function (el) {
            sdp.push(makeLine(type, obj, el));
          });
        }
      });
    });
  });
  return sdp.join('\r\n') + '\r\n';
};

}),
/* 29 */
(function(module, exports, __webpack_require__) {

/**
 * This is the common logic for both the Node.js and web browser
 * implementations of `debug()`.
 */
function setup(env) {
  createDebug.debug = createDebug;
  createDebug.default = createDebug;
  createDebug.coerce = coerce;
  createDebug.disable = disable;
  createDebug.enable = enable;
  createDebug.enabled = enabled;
  createDebug.humanize = __webpack_require__(30);
  Object.keys(env).forEach(key => {
    createDebug[key] = env[key];
  });
  /**
  * Active `debug` instances.
  */

  createDebug.instances = [];
  /**
  * The currently active debug mode names, and names to skip.
  */

  createDebug.names = [];
  createDebug.skips = [];
  /**
  * Map of special "%n" handling functions, for the debug "format" argument.
  *
  * Valid key names are a single, lower or upper-case letter, i.e. "n" and "N".
  */

  createDebug.formatters = {};
  /**
  * Selects a color for a debug namespace
  * @param {String} namespace The namespace string for the for the debug instance to be colored
  * @return {Number|String} An ANSI color code for the given namespace
  * @api private
  */

  function selectColor(namespace) {
    let hash = 0;

    for (let i = 0; i < namespace.length; i++) {
      hash = (hash << 5) - hash + namespace.charCodeAt(i);
      hash |= 0; // Convert to 32bit integer
    }

    return createDebug.colors[Math.abs(hash) % createDebug.colors.length];
  }

  createDebug.selectColor = selectColor;
  /**
  * Create a debugger with the given `namespace`.
  *
  * @param {String} namespace
  * @return {Function}
  * @api public
  */

  function createDebug(namespace) {
    let prevTime;

    function debug(...args) {
      // TODO: Disabled?
      /*if (!debug.enabled) {
        return;
      }*/

      const self = debug; // Set `diff` timestamp

      const curr = Number(new Date());
      const ms = curr - (prevTime || curr);
      self.diff = ms;
      self.prev = prevTime;
      self.curr = curr;
      prevTime = curr;
      args[0] = createDebug.coerce(args[0]);

      if (typeof args[0] !== 'string') {
        // Anything else let's inspect with %O
        args.unshift('%O');
      } // Apply any `formatters` transformations


      let index = 0;
      args[0] = args[0].replace(/%([a-zA-Z%])/g, (match, format) => {
        // If we encounter an escaped % then don't increase the array index
        if (match === '%%') {
          return match;
        }

        index++;
        const formatter = createDebug.formatters[format];

        if (typeof formatter === 'function') {
          const val = args[index];
          match = formatter.call(self, val); // Now we need to remove `args[index]` since it's inlined in the `format`

          args.splice(index, 1);
          index--;
        }

        return match;
      }); // Apply env-specific formatting (colors, etc.)

      createDebug.formatArgs.call(self, args);
      const logFn = self.log || createDebug.log;
      logFn.apply(self, args);
    }

    debug.namespace = namespace;
    debug.enabled = createDebug.enabled(namespace);
    debug.useColors = createDebug.useColors();
    debug.color = selectColor(namespace);
    debug.destroy = destroy;
    debug.extend = extend; // Debug.formatArgs = formatArgs;
    // debug.rawLog = rawLog;
    // env-specific initialization logic for debug instances

    if (typeof createDebug.init === 'function') {
      createDebug.init(debug);
    }

    createDebug.instances.push(debug);
    return debug;
  }

  function destroy() {
    const index = createDebug.instances.indexOf(this);

    if (index !== -1) {
      createDebug.instances.splice(index, 1);
      return true;
    }

    return false;
  }

  function extend(namespace, delimiter) {
    const newDebug = createDebug(this.namespace + (typeof delimiter === 'undefined' ? ':' : delimiter) + namespace);
    newDebug.log = this.log;
    return newDebug;
  }
  /**
  * Enables a debug mode by namespaces. This can include modes
  * separated by a colon and wildcards.
  *
  * @param {String} namespaces
  * @api public
  */


  function enable(namespaces) {
    createDebug.save(namespaces);
    createDebug.names = [];
    createDebug.skips = [];
    let i;
    const split = (typeof namespaces === 'string' ? namespaces : '').split(/[\s,]+/);
    const len = split.length;

    for (i = 0; i < len; i++) {
      if (!split[i]) {
        // ignore empty strings
        continue;
      }

      namespaces = split[i].replace(/\*/g, '.*?');

      if (namespaces[0] === '-') {
        createDebug.skips.push(new RegExp('^' + namespaces.substr(1) + '$'));
      } else {
        createDebug.names.push(new RegExp('^' + namespaces + '$'));
      }
    }

    for (i = 0; i < createDebug.instances.length; i++) {
      const instance = createDebug.instances[i];
      instance.enabled = createDebug.enabled(instance.namespace);
    }
  }
  /**
  * Disable debug output.
  *
  * @return {String} namespaces
  * @api public
  */


  function disable() {
    const namespaces = [...createDebug.names.map(toNamespace), ...createDebug.skips.map(toNamespace).map(namespace => '-' + namespace)].join(',');
    createDebug.enable('');
    return namespaces;
  }
  /**
  * Returns true if the given mode name is enabled, false otherwise.
  *
  * @param {String} name
  * @return {Boolean}
  * @api public
  */


  function enabled(name) {
    if (name[name.length - 1] === '*') {
      return true;
    }

    let i;
    let len;

    for (i = 0, len = createDebug.skips.length; i < len; i++) {
      if (createDebug.skips[i].test(name)) {
        return false;
      }
    }

    for (i = 0, len = createDebug.names.length; i < len; i++) {
      if (createDebug.names[i].test(name)) {
        return true;
      }
    }

    return false;
  }
  /**
  * Convert regexp to namespace
  *
  * @param {RegExp} regxep
  * @return {String} namespace
  * @api private
  */


  function toNamespace(regexp) {
    return regexp.toString().substring(2, regexp.toString().length - 2).replace(/\.\*\?$/, '*');
  }
  /**
  * Coerce `val`.
  *
  * @param {Mixed} val
  * @return {Mixed}
  * @api private
  */


  function coerce(val) {
    if (val instanceof Error) {
      return val.stack || val.message;
    }

    return val;
  }

  createDebug.enable(createDebug.load());
  return createDebug;
}

module.exports = setup;

}),
/* 30 */
(function(module, exports) {

/**
 * Helpers.
 */
var s = 1000;
var m = s * 60;
var h = m * 60;
var d = h * 24;
var w = d * 7;
var y = d * 365.25;
/**
 * Parse or format the given `val`.
 *
 * Options:
 *
 *  - `long` verbose formatting [false]
 *
 * @param {String|Number} val
 * @param {Object} [options]
 * @throws {Error} throw an error if val is not a non-empty string or a number
 * @return {String|Number}
 * @api public
 */

module.exports = function (val, options) {
  options = options || {};
  var type = typeof val;

  if (type === 'string' && val.length > 0) {
    return parse(val);
  } else if (type === 'number' && isNaN(val) === false) {
    return options.long ? fmtLong(val) : fmtShort(val);
  }

  throw new Error('val is not a non-empty string or a valid number. val=' + JSON.stringify(val));
};
/**
 * Parse the given `str` and return milliseconds.
 *
 * @param {String} str
 * @return {Number}
 * @api private
 */


function parse(str) {
  str = String(str);

  if (str.length > 100) {
    return;
  }

  var match = /^((?:\d+)?\-?\d?\.?\d+) *(milliseconds?|msecs?|ms|seconds?|secs?|s|minutes?|mins?|m|hours?|hrs?|h|days?|d|weeks?|w|years?|yrs?|y)?$/i.exec(str);

  if (!match) {
    return;
  }

  var n = parseFloat(match[1]);
  var type = (match[2] || 'ms').toLowerCase();

  switch (type) {
    case 'years':
    case 'year':
    case 'yrs':
    case 'yr':
    case 'y':
      return n * y;

    case 'weeks':
    case 'week':
    case 'w':
      return n * w;

    case 'days':
    case 'day':
    case 'd':
      return n * d;

    case 'hours':
    case 'hour':
    case 'hrs':
    case 'hr':
    case 'h':
      return n * h;

    case 'minutes':
    case 'minute':
    case 'mins':
    case 'min':
    case 'm':
      return n * m;

    case 'seconds':
    case 'second':
    case 'secs':
    case 'sec':
    case 's':
      return n * s;

    case 'milliseconds':
    case 'millisecond':
    case 'msecs':
    case 'msec':
    case 'ms':
      return n;

    default:
      return undefined;
  }
}
/**
 * Short format for `ms`.
 *
 * @param {Number} ms
 * @return {String}
 * @api private
 */


function fmtShort(ms) {
  var msAbs = Math.abs(ms);

  if (msAbs >= d) {
    return Math.round(ms / d) + 'd';
  }

  if (msAbs >= h) {
    return Math.round(ms / h) + 'h';
  }

  if (msAbs >= m) {
    return Math.round(ms / m) + 'm';
  }

  if (msAbs >= s) {
    return Math.round(ms / s) + 's';
  }

  return ms + 'ms';
}
/**
 * Long format for `ms`.
 *
 * @param {Number} ms
 * @return {String}
 * @api private
 */


function fmtLong(ms) {
  var msAbs = Math.abs(ms);

  if (msAbs >= d) {
    return plural(ms, msAbs, d, 'day');
  }

  if (msAbs >= h) {
    return plural(ms, msAbs, h, 'hour');
  }

  if (msAbs >= m) {
    return plural(ms, msAbs, m, 'minute');
  }

  if (msAbs >= s) {
    return plural(ms, msAbs, s, 'second');
  }

  return ms + ' ms';
}
/**
 * Pluralization helper.
 */


function plural(ms, msAbs, n, name) {
  var isPlural = msAbs >= n * 1.5;
  return Math.round(ms / n) + ' ' + name + (isPlural ? 's' : '');
}

}),
/* 31 */
(function(module, exports, __webpack_require__) {

"use strict";


function _classCallCheck(instance, Constructor) {
  if (!(instance instanceof Constructor)) {
    throw new TypeError("Cannot call a class as a function");
  }
}

function _defineProperties(target, props) {
  for (var i = 0; i < props.length; i++) {
    var descriptor = props[i];
    descriptor.enumerable = descriptor.enumerable || false;
    descriptor.configurable = true;
    if ("value" in descriptor) descriptor.writable = true;
    Object.defineProperty(target, descriptor.key, descriptor);
  }
}

function _createClass(Constructor, protoProps, staticProps) {
  if (protoProps) _defineProperties(Constructor.prototype, protoProps);
  if (staticProps) _defineProperties(Constructor, staticProps);
  return Constructor;
}

var Utils = __webpack_require__(2);

var debug = __webpack_require__(0)('JsSIP:DigestAuthentication');

var debugerror = __webpack_require__(0)('JsSIP:ERROR:DigestAuthentication');

debugerror.log = console.warn.bind(console);

module.exports =
/*#__PURE__*/
function () {
  function DigestAuthentication(credentials) {
    _classCallCheck(this, DigestAuthentication);

    this._credentials = credentials;
    this._cnonce = null;
    this._nc = 0;
    this._ncHex = '00000000';
    this._algorithm = null;
    this._realm = null;
    this._nonce = null;
    this._opaque = null;
    this._stale = null;
    this._qop = null;
    this._method = null;
    this._uri = null;
    this._ha1 = null;
    this._response = null;
  }

  _createClass(DigestAuthentication, [{
    key: "get",
    value: function get(parameter) {
      switch (parameter) {
        case 'realm':
          return this._realm;

        case 'ha1':
          return this._ha1;

        default:
          debugerror('get() | cannot get "%s" parameter', parameter);
          return undefined;
      }
    }
    /**
    * Performs Digest authentication given a SIP request and the challenge
    * received in a response to that request.
    * Returns true if auth was successfully generated, false otherwise.
    */

  }, {
    key: "authenticate",
    value: function authenticate(_ref, challenge)
    /* test interface */
    {
      var method = _ref.method,
          ruri = _ref.ruri,
          body = _ref.body;
      var cnonce = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : null;
      this._algorithm = challenge.algorithm;
      this._realm = challenge.realm;
      this._nonce = challenge.nonce;
      this._opaque = challenge.opaque;
      this._stale = challenge.stale;

      if (this._algorithm) {
        if (this._algorithm !== 'MD5') {
          debugerror('authenticate() | challenge with Digest algorithm different than "MD5", authentication aborted');
          return false;
        }
      } else {
        this._algorithm = 'MD5';
      }

      if (!this._nonce) {
        debugerror('authenticate() | challenge without Digest nonce, authentication aborted');
        return false;
      }

      if (!this._realm) {
        debugerror('authenticate() | challenge without Digest realm, authentication aborted');
        return false;
      } // If no plain SIP password is provided.


      if (!this._credentials.password) {
        // If ha1 is not provided we cannot authenticate.
        if (!this._credentials.ha1) {
          debugerror('authenticate() | no plain SIP password nor ha1 provided, authentication aborted');
          return false;
        } // If the realm does not match the stored realm we cannot authenticate.


        if (this._credentials.realm !== this._realm) {
          debugerror('authenticate() | no plain SIP password, and stored `realm` does not match the given `realm`, cannot authenticate [stored:"%s", given:"%s"]', this._credentials.realm, this._realm);
          return false;
        }
      } // 'qop' can contain a list of values (Array). Let's choose just one.


      if (challenge.qop) {
        if (challenge.qop.indexOf('auth-int') > -1) {
          this._qop = 'auth-int';
        } else if (challenge.qop.indexOf('auth') > -1) {
          this._qop = 'auth';
        } else {
          // Otherwise 'qop' is present but does not contain 'auth' or 'auth-int', so abort here.
          debugerror('authenticate() | challenge without Digest qop different than "auth" or "auth-int", authentication aborted');
          return false;
        }
      } else {
        this._qop = null;
      } // Fill other attributes.


      this._method = method;
      this._uri = ruri;
      this._cnonce = cnonce || Utils.createRandomToken(12);
      this._nc += 1;
      var hex = Number(this._nc).toString(16);
      this._ncHex = '00000000'.substr(0, 8 - hex.length) + hex; // Nc-value = 8LHEX. Max value = 'FFFFFFFF'.

      if (this._nc === 4294967296) {
        this._nc = 1;
        this._ncHex = '00000001';
      } // Calculate the Digest "response" value.
      // If we have plain SIP password then regenerate ha1.


      if (this._credentials.password) {
        // HA1 = MD5(A1) = MD5(username:realm:password).
        this._ha1 = Utils.calculateMD5("".concat(this._credentials.username, ":").concat(this._realm, ":").concat(this._credentials.password));
      } // Otherwise reuse the stored ha1.
      else {
          this._ha1 = this._credentials.ha1;
        }

      var ha2;

      if (this._qop === 'auth') {
        // HA2 = MD5(A2) = MD5(method:digestURI).
        ha2 = Utils.calculateMD5("".concat(this._method, ":").concat(this._uri)); // Response = MD5(HA1:nonce:nonceCount:credentialsNonce:qop:HA2).

        this._response = Utils.calculateMD5("".concat(this._ha1, ":").concat(this._nonce, ":").concat(this._ncHex, ":").concat(this._cnonce, ":auth:").concat(ha2));
      } else if (this._qop === 'auth-int') {
        // HA2 = MD5(A2) = MD5(method:digestURI:MD5(entityBody)).
        ha2 = Utils.calculateMD5("".concat(this._method, ":").concat(this._uri, ":").concat(Utils.calculateMD5(body ? body : ''))); // Response = MD5(HA1:nonce:nonceCount:credentialsNonce:qop:HA2).

        this._response = Utils.calculateMD5("".concat(this._ha1, ":").concat(this._nonce, ":").concat(this._ncHex, ":").concat(this._cnonce, ":auth-int:").concat(ha2));
      } else if (this._qop === null) {
        // HA2 = MD5(A2) = MD5(method:digestURI).
        ha2 = Utils.calculateMD5("".concat(this._method, ":").concat(this._uri)); // Response = MD5(HA1:nonce:HA2).

        this._response = Utils.calculateMD5("".concat(this._ha1, ":").concat(this._nonce, ":").concat(ha2));
      }

      debug('authenticate() | response generated');
      return true;
    }
    /**
    * Return the Proxy-Authorization or WWW-Authorization header value.
    */

  }, {
    key: "toString",
    value: function toString() {
      var auth_params = [];

      if (!this._response) {
        throw new Error('response field does not exist, cannot generate Authorization header');
      }

      auth_params.push("algorithm=".concat(this._algorithm));
      auth_params.push("username=\"".concat(this._credentials.username, "\""));
      auth_params.push("realm=\"".concat(this._realm, "\""));
      auth_params.push("nonce=\"".concat(this._nonce, "\""));
      auth_params.push("uri=\"".concat(this._uri, "\""));
      auth_params.push("response=\"".concat(this._response, "\""));

      if (this._opaque) {
        auth_params.push("opaque=\"".concat(this._opaque, "\""));
      }

      if (this._qop) {
        auth_params.push("qop=".concat(this._qop));
        auth_params.push("cnonce=\"".concat(this._cnonce, "\""));
        auth_params.push("nc=".concat(this._ncHex));
      }

      return "Digest ".concat(auth_params.join(', '));
    }
  }]);

  return DigestAuthentication;
}();

}),
/* 32 */
(function(module, exports, __webpack_require__) {

"use strict";


function _classCallCheck(instance, Constructor) {
  if (!(instance instanceof Constructor)) {
    throw new TypeError("Cannot call a class as a function");
  }
}

function _defineProperties(target, props) {
  for (var i = 0; i < props.length; i++) {
    var descriptor = props[i];
    descriptor.enumerable = descriptor.enumerable || false;
    descriptor.configurable = true;
    if ("value" in descriptor) descriptor.writable = true;
    Object.defineProperty(target, descriptor.key, descriptor);
  }
}

function _createClass(Constructor, protoProps, staticProps) {
  if (protoProps) _defineProperties(Constructor.prototype, protoProps);
  if (staticProps) _defineProperties(Constructor, staticProps);
  return Constructor;
}

var SIPMessage = __webpack_require__(5);

var JsSIP_C = __webpack_require__(1);

var Transactions = __webpack_require__(9);

var Dialog_RequestSender = __webpack_require__(33);

var Utils = __webpack_require__(2);

var debug = __webpack_require__(0)('JsSIP:Dialog');

var C = {
  // Dialog states.
  STATUS_EARLY: 1,
  STATUS_CONFIRMED: 2
}; // RFC 3261 12.1.

module.exports =
/*#__PURE__*/
function () {
  _createClass(Dialog, null, [{
    key: "C",
    // Expose C object.
    get: function get() {
      return C;
    }
  }]);

  function Dialog(owner, message, type) {
    var state = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : C.STATUS_CONFIRMED;

    _classCallCheck(this, Dialog);

    this._owner = owner;
    this._ua = owner._ua;
    this._uac_pending_reply = false;
    this._uas_pending_reply = false;

    if (!message.hasHeader('contact')) {
      return {
        error: 'unable to create a Dialog without Contact header field'
      };
    }

    if (message instanceof SIPMessage.IncomingResponse) {
      state = message.status_code < 200 ? C.STATUS_EARLY : C.STATUS_CONFIRMED;
    }

    var contact = message.parseHeader('contact'); // RFC 3261 12.1.1.

    if (type === 'UAS') {
      this._id = {
        call_id: message.call_id,
        local_tag: message.to_tag,
        remote_tag: message.from_tag,
        toString: function toString() {
          return this.call_id + this.local_tag + this.remote_tag;
        }
      };
      this._state = state;
      this._remote_seqnum = message.cseq;
      this._local_uri = message.parseHeader('to').uri;
      this._remote_uri = message.parseHeader('from').uri;
      this._remote_target = contact.uri;
      this._route_set = message.getHeaders('record-route');
      this._ack_seqnum = this._remote_seqnum;
    } // RFC 3261 12.1.2.
    else if (type === 'UAC') {
        this._id = {
          call_id: message.call_id,
          local_tag: message.from_tag,
          remote_tag: message.to_tag,
          toString: function toString() {
            return this.call_id + this.local_tag + this.remote_tag;
          }
        };
        this._state = state;
        this._local_seqnum = message.cseq;
        this._local_uri = message.parseHeader('from').uri;
        this._remote_uri = message.parseHeader('to').uri;
        this._remote_target = contact.uri;
        this._route_set = message.getHeaders('record-route').reverse();
        this._ack_seqnum = null;
      }

    this._ua.newDialog(this);

    debug("new ".concat(type, " dialog created with status ").concat(this._state === C.STATUS_EARLY ? 'EARLY' : 'CONFIRMED'));
  }

  _createClass(Dialog, [{
    key: "update",
    value: function update(message, type) {
      this._state = C.STATUS_CONFIRMED;
      debug("dialog ".concat(this._id.toString(), "  changed to CONFIRMED state"));

      if (type === 'UAC') {
        // RFC 3261 13.2.2.4.
        this._route_set = message.getHeaders('record-route').reverse();
      }
    }
  }, {
    key: "terminate",
    value: function terminate() {
      debug("dialog ".concat(this._id.toString(), " deleted"));

      this._ua.destroyDialog(this);
    }
  }, {
    key: "sendRequest",
    value: function sendRequest(method) {
      var _this = this;

      var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
      var extraHeaders = Utils.cloneArray(options.extraHeaders);
      var eventHandlers = options.eventHandlers || {};
      var body = options.body || null;

      var request = this._createRequest(method, extraHeaders, body); // Increase the local CSeq on authentication.


      eventHandlers.onAuthenticated = function () {
        _this._local_seqnum += 1;
      };

      var request_sender = new Dialog_RequestSender(this, request, eventHandlers);
      request_sender.send(); // Return the instance of OutgoingRequest.

      return request;
    }
  }, {
    key: "receiveRequest",
    value: function receiveRequest(request) {
      // Check in-dialog request.
      if (!this._checkInDialogRequest(request)) {
        return;
      } // ACK received. Cleanup this._ack_seqnum.


      if (request.method === JsSIP_C.ACK && this._ack_seqnum !== null) {
        this._ack_seqnum = null;
      } // INVITE received. Set this._ack_seqnum.
      else if (request.method === JsSIP_C.INVITE) {
          this._ack_seqnum = request.cseq;
        }

      this._owner.receiveRequest(request);
    } // RFC 3261 12.2.1.1.

  }, {
    key: "_createRequest",
    value: function _createRequest(method, extraHeaders, body) {
      extraHeaders = Utils.cloneArray(extraHeaders);

      if (!this._local_seqnum) {
        this._local_seqnum = Math.floor(Math.random() * 10000);
      }

      var cseq = method === JsSIP_C.CANCEL || method === JsSIP_C.ACK ? this._local_seqnum : this._local_seqnum += 1;
      var request = new SIPMessage.OutgoingRequest(method, this._remote_target, this._ua, {
        'cseq': cseq,
        'call_id': this._id.call_id,
        'from_uri': this._local_uri,
        'from_tag': this._id.local_tag,
        'to_uri': this._remote_uri,
        'to_tag': this._id.remote_tag,
        'route_set': this._route_set
      }, extraHeaders, body);
      return request;
    } // RFC 3261 12.2.2.

  }, {
    key: "_checkInDialogRequest",
    value: function _checkInDialogRequest(request) {
      var _this2 = this;

      if (!this._remote_seqnum) {
        this._remote_seqnum = request.cseq;
      } else if (request.cseq < this._remote_seqnum) {
        if (request.method === JsSIP_C.ACK) {
          // We are not expecting any ACK with lower seqnum than the current one.
          // Or this is not the ACK we are waiting for.
          if (this._ack_seqnum === null || request.cseq !== this._ack_seqnum) {
            return false;
          }
        } else {
          request.reply(500);
          return false;
        }
      } else if (request.cseq > this._remote_seqnum) {
        this._remote_seqnum = request.cseq;
      } // RFC3261 14.2 Modifying an Existing Session -UAS BEHAVIOR-.


      if (request.method === JsSIP_C.INVITE || request.method === JsSIP_C.UPDATE && request.body) {
        if (this._uac_pending_reply === true) {
          request.reply(491);
        } else if (this._uas_pending_reply === true) {
          var retryAfter = (Math.random() * 10 | 0) + 1;
          request.reply(500, null, ["Retry-After:".concat(retryAfter)]);
          return false;
        } else {
          this._uas_pending_reply = true;

          var stateChanged = function stateChanged() {
            if (request.server_transaction.state === Transactions.C.STATUS_ACCEPTED || request.server_transaction.state === Transactions.C.STATUS_COMPLETED || request.server_transaction.state === Transactions.C.STATUS_TERMINATED) {
              request.server_transaction.removeListener('stateChanged', stateChanged);
              _this2._uas_pending_reply = false;
            }
          };

          request.server_transaction.on('stateChanged', stateChanged);
        } // RFC3261 12.2.2 Replace the dialog`s remote target URI if the request is accepted.


        if (request.hasHeader('contact')) {
          request.server_transaction.on('stateChanged', function () {
            if (request.server_transaction.state === Transactions.C.STATUS_ACCEPTED) {
              _this2._remote_target = request.parseHeader('contact').uri;
            }
          });
        }
      } else if (request.method === JsSIP_C.NOTIFY) {
        // RFC6665 3.2 Replace the dialog`s remote target URI if the request is accepted.
        if (request.hasHeader('contact')) {
          request.server_transaction.on('stateChanged', function () {
            if (request.server_transaction.state === Transactions.C.STATUS_COMPLETED) {
              _this2._remote_target = request.parseHeader('contact').uri;
            }
          });
        }
      }

      return true;
    }
  }, {
    key: "id",
    get: function get() {
      return this._id;
    }
  }, {
    key: "local_seqnum",
    get: function get() {
      return this._local_seqnum;
    },
    set: function set(num) {
      this._local_seqnum = num;
    }
  }, {
    key: "owner",
    get: function get() {
      return this._owner;
    }
  }, {
    key: "uac_pending_reply",
    get: function get() {
      return this._uac_pending_reply;
    },
    set: function set(pending) {
      this._uac_pending_reply = pending;
    }
  }, {
    key: "uas_pending_reply",
    get: function get() {
      return this._uas_pending_reply;
    }
  }]);

  return Dialog;
}();

}),
/* 33 */
(function(module, exports, __webpack_require__) {

"use strict";


function _classCallCheck(instance, Constructor) {
  if (!(instance instanceof Constructor)) {
    throw new TypeError("Cannot call a class as a function");
  }
}

function _defineProperties(target, props) {
  for (var i = 0; i < props.length; i++) {
    var descriptor = props[i];
    descriptor.enumerable = descriptor.enumerable || false;
    descriptor.configurable = true;
    if ("value" in descriptor) descriptor.writable = true;
    Object.defineProperty(target, descriptor.key, descriptor);
  }
}

function _createClass(Constructor, protoProps, staticProps) {
  if (protoProps) _defineProperties(Constructor.prototype, protoProps);
  if (staticProps) _defineProperties(Constructor, staticProps);
  return Constructor;
}

var JsSIP_C = __webpack_require__(1);

var Transactions = __webpack_require__(9);

var RTCSession = __webpack_require__(17);

var RequestSender = __webpack_require__(10); // Default event handlers.


var EventHandlers = {
  onRequestTimeout: function onRequestTimeout() {},
  onTransportError: function onTransportError() {},
  onSuccessResponse: function onSuccessResponse() {},
  onErrorResponse: function onErrorResponse() {},
  onAuthenticated: function onAuthenticated() {},
  onDialogError: function onDialogError() {}
};

module.exports =
/*#__PURE__*/
function () {
  function DialogRequestSender(dialog, request, eventHandlers) {
    _classCallCheck(this, DialogRequestSender);

    this._dialog = dialog;
    this._ua = dialog._ua;
    this._request = request;
    this._eventHandlers = eventHandlers; // RFC3261 14.1 Modifying an Existing Session. UAC Behavior.

    this._reattempt = false;
    this._reattemptTimer = null; // Define the undefined handlers.

    for (var handler in EventHandlers) {
      if (Object.prototype.hasOwnProperty.call(EventHandlers, handler)) {
        if (!this._eventHandlers[handler]) {
          this._eventHandlers[handler] = EventHandlers[handler];
        }
      }
    }
  }

  _createClass(DialogRequestSender, [{
    key: "send",
    value: function send() {
      var _this = this;

      var request_sender = new RequestSender(this._ua, this._request, {
        onRequestTimeout: function onRequestTimeout() {
          _this._eventHandlers.onRequestTimeout();
        },
        onTransportError: function onTransportError() {
          _this._eventHandlers.onTransportError();
        },
        onAuthenticated: function onAuthenticated(request) {
          _this._eventHandlers.onAuthenticated(request);
        },
        onReceiveResponse: function onReceiveResponse(response) {
          _this._receiveResponse(response);
        }
      });
      request_sender.send(); // RFC3261 14.2 Modifying an Existing Session -UAC BEHAVIOR-.

      if ((this._request.method === JsSIP_C.INVITE || this._request.method === JsSIP_C.UPDATE && this._request.body) && request_sender.clientTransaction.state !== Transactions.C.STATUS_TERMINATED) {
        this._dialog.uac_pending_reply = true;

        var stateChanged = function stateChanged() {
          if (request_sender.clientTransaction.state === Transactions.C.STATUS_ACCEPTED || request_sender.clientTransaction.state === Transactions.C.STATUS_COMPLETED || request_sender.clientTransaction.state === Transactions.C.STATUS_TERMINATED) {
            request_sender.clientTransaction.removeListener('stateChanged', stateChanged);
            _this._dialog.uac_pending_reply = false;
          }
        };

        request_sender.clientTransaction.on('stateChanged', stateChanged);
      }
    }
  }, {
    key: "_receiveResponse",
    value: function _receiveResponse(response) {
      var _this2 = this; // RFC3261 12.2.1.2 408 or 481 is received for a request within a dialog.


      if (response.status_code === 408 || response.status_code === 481) {
        this._eventHandlers.onDialogError(response);
      } else if (response.method === JsSIP_C.INVITE && response.status_code === 491) {
        if (this._reattempt) {
          if (response.status_code >= 200 && response.status_code < 300) {
            this._eventHandlers.onSuccessResponse(response);
          } else if (response.status_code >= 300) {
            this._eventHandlers.onErrorResponse(response);
          }
        } else {
          this._request.cseq.value = this._dialog.local_seqnum += 1;
          this._reattemptTimer = setTimeout(function () {
            // TODO: look at dialog state instead.
            if (_this2._dialog.owner.status !== RTCSession.C.STATUS_TERMINATED) {
              _this2._reattempt = true;

              _this2._request_sender.send();
            }
          }, 1000);
        }
      } else if (response.status_code >= 200 && response.status_code < 300) {
        this._eventHandlers.onSuccessResponse(response);
      } else if (response.status_code >= 300) {
        this._eventHandlers.onErrorResponse(response);
      }
    }
  }, {
    key: "request",
    get: function get() {
      return this._request;
    }
  }]);

  return DialogRequestSender;
}();

}),
/* 34 */
(function(module, exports, __webpack_require__) {

"use strict";


function _typeof(obj) {
  if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") {
    _typeof = function _typeof(obj) {
      return typeof obj;
    };
  } else {
    _typeof = function _typeof(obj) {
      return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj;
    };
  }

  return _typeof(obj);
}

function _classCallCheck(instance, Constructor) {
  if (!(instance instanceof Constructor)) {
    throw new TypeError("Cannot call a class as a function");
  }
}

function _defineProperties(target, props) {
  for (var i = 0; i < props.length; i++) {
    var descriptor = props[i];
    descriptor.enumerable = descriptor.enumerable || false;
    descriptor.configurable = true;
    if ("value" in descriptor) descriptor.writable = true;
    Object.defineProperty(target, descriptor.key, descriptor);
  }
}

function _createClass(Constructor, protoProps, staticProps) {
  if (protoProps) _defineProperties(Constructor.prototype, protoProps);
  if (staticProps) _defineProperties(Constructor, staticProps);
  return Constructor;
}

function _possibleConstructorReturn(self, call) {
  if (call && (_typeof(call) === "object" || typeof call === "function")) {
    return call;
  }

  return _assertThisInitialized(self);
}

function _assertThisInitialized(self) {
  if (self === void 0) {
    throw new ReferenceError("this hasn't been initialised - super() hasn't been called");
  }

  return self;
}

function _getPrototypeOf(o) {
  _getPrototypeOf = Object.setPrototypeOf ? Object.getPrototypeOf : function _getPrototypeOf(o) {
    return o.__proto__ || Object.getPrototypeOf(o);
  };
  return _getPrototypeOf(o);
}

function _inherits(subClass, superClass) {
  if (typeof superClass !== "function" && superClass !== null) {
    throw new TypeError("Super expression must either be null or a function");
  }

  subClass.prototype = Object.create(superClass && superClass.prototype, {
    constructor: {
      value: subClass,
      writable: true,
      configurable: true
    }
  });
  if (superClass) _setPrototypeOf(subClass, superClass);
}

function _setPrototypeOf(o, p) {
  _setPrototypeOf = Object.setPrototypeOf || function _setPrototypeOf(o, p) {
    o.__proto__ = p;
    return o;
  };

  return _setPrototypeOf(o, p);
}

var EventEmitter = __webpack_require__(7).EventEmitter;

var JsSIP_C = __webpack_require__(1);

var Exceptions = __webpack_require__(6);

var Utils = __webpack_require__(2);

var debug = __webpack_require__(0)('JsSIP:RTCSession:DTMF');

var debugerror = __webpack_require__(0)('JsSIP:ERROR:RTCSession:DTMF');

debugerror.log = console.warn.bind(console);
var C = {
  MIN_DURATION: 70,
  MAX_DURATION: 6000,
  DEFAULT_DURATION: 100,
  MIN_INTER_TONE_GAP: 50,
  DEFAULT_INTER_TONE_GAP: 500
};

module.exports =
/*#__PURE__*/
function (_EventEmitter) {
  _inherits(DTMF, _EventEmitter);

  function DTMF(session) {
    var _this;

    _classCallCheck(this, DTMF);

    _this = _possibleConstructorReturn(this, _getPrototypeOf(DTMF).call(this));
    _this._session = session;
    _this._direction = null;
    _this._tone = null;
    _this._duration = null;
    _this._request = null;
    return _this;
  }

  _createClass(DTMF, [{
    key: "send",
    value: function send(tone) {
      var _this2 = this;

      var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};

      if (tone === undefined) {
        throw new TypeError('Not enough arguments');
      }

      this._direction = 'outgoing'; // Check RTCSession Status.

      if (this._session.status !== this._session.C.STATUS_CONFIRMED && this._session.status !== this._session.C.STATUS_WAITING_FOR_ACK) {
        throw new Exceptions.InvalidStateError(this._session.status);
      }

      var extraHeaders = Utils.cloneArray(options.extraHeaders);
      this.eventHandlers = options.eventHandlers || {}; // Check tone type.

      if (typeof tone === 'string') {
        tone = tone.toUpperCase();
      } else if (typeof tone === 'number') {
        tone = tone.toString();
      } else {
        throw new TypeError("Invalid tone: ".concat(tone));
      } // Check tone value.


      if (!tone.match(/^[0-9A-DR#*]$/)) {
        throw new TypeError("Invalid tone: ".concat(tone));
      } else {
        this._tone = tone;
      } // Duration is checked/corrected in RTCSession.


      this._duration = options.duration;
      extraHeaders.push('Content-Type: application/dtmf-relay');
      var body = "Signal=".concat(this._tone, "\r\n");
      body += "Duration=".concat(this._duration);

      this._session.newDTMF({
        originator: 'local',
        dtmf: this,
        request: this._request
      });

      this._session.sendRequest(JsSIP_C.INFO, {
        extraHeaders: extraHeaders,
        eventHandlers: {
          onSuccessResponse: function onSuccessResponse(response) {
            _this2.emit('succeeded', {
              originator: 'remote',
              response: response
            });
          },
          onErrorResponse: function onErrorResponse(response) {
            if (_this2.eventHandlers.onFailed) {
              _this2.eventHandlers.onFailed();
            }

            _this2.emit('failed', {
              originator: 'remote',
              response: response
            });
          },
          onRequestTimeout: function onRequestTimeout() {
            _this2._session.onRequestTimeout();
          },
          onTransportError: function onTransportError() {
            _this2._session.onTransportError();
          },
          onDialogError: function onDialogError() {
            _this2._session.onDialogError();
          }
        },
        body: body
      });
    }
  }, {
    key: "init_incoming",
    value: function init_incoming(request) {
      var reg_tone = /^(Signal\s*?=\s*?)([0-9A-D#*]{1})(\s)?.*/;
      var reg_duration = /^(Duration\s?=\s?)([0-9]{1,4})(\s)?.*/;
      this._direction = 'incoming';
      this._request = request;
      request.reply(200);

      if (request.body) {
        var body = request.body.split('\n');

        if (body.length >= 1) {
          if (reg_tone.test(body[0])) {
            this._tone = body[0].replace(reg_tone, '$2');
          }
        }

        if (body.length >= 2) {
          if (reg_duration.test(body[1])) {
            this._duration = parseInt(body[1].replace(reg_duration, '$2'), 10);
          }
        }
      }

      if (!this._duration) {
        this._duration = C.DEFAULT_DURATION;
      }

      if (!this._tone) {
        debug('invalid INFO DTMF received, discarded');
      } else {
        this._session.newDTMF({
          originator: 'remote',
          dtmf: this,
          request: request
        });
      }
    }
  }, {
    key: "tone",
    get: function get() {
      return this._tone;
    }
  }, {
    key: "duration",
    get: function get() {
      return this._duration;
    }
  }]);

  return DTMF;
}(EventEmitter);
/**
 * Expose C object.
 */


module.exports.C = C;

}),
/* 35 */
(function(module, exports, __webpack_require__) {

"use strict";


function _typeof(obj) {
  if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") {
    _typeof = function _typeof(obj) {
      return typeof obj;
    };
  } else {
    _typeof = function _typeof(obj) {
      return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj;
    };
  }

  return _typeof(obj);
}

function _classCallCheck(instance, Constructor) {
  if (!(instance instanceof Constructor)) {
    throw new TypeError("Cannot call a class as a function");
  }
}

function _defineProperties(target, props) {
  for (var i = 0; i < props.length; i++) {
    var descriptor = props[i];
    descriptor.enumerable = descriptor.enumerable || false;
    descriptor.configurable = true;
    if ("value" in descriptor) descriptor.writable = true;
    Object.defineProperty(target, descriptor.key, descriptor);
  }
}

function _createClass(Constructor, protoProps, staticProps) {
  if (protoProps) _defineProperties(Constructor.prototype, protoProps);
  if (staticProps) _defineProperties(Constructor, staticProps);
  return Constructor;
}

function _possibleConstructorReturn(self, call) {
  if (call && (_typeof(call) === "object" || typeof call === "function")) {
    return call;
  }

  return _assertThisInitialized(self);
}

function _assertThisInitialized(self) {
  if (self === void 0) {
    throw new ReferenceError("this hasn't been initialised - super() hasn't been called");
  }

  return self;
}

function _getPrototypeOf(o) {
  _getPrototypeOf = Object.setPrototypeOf ? Object.getPrototypeOf : function _getPrototypeOf(o) {
    return o.__proto__ || Object.getPrototypeOf(o);
  };
  return _getPrototypeOf(o);
}

function _inherits(subClass, superClass) {
  if (typeof superClass !== "function" && superClass !== null) {
    throw new TypeError("Super expression must either be null or a function");
  }

  subClass.prototype = Object.create(superClass && superClass.prototype, {
    constructor: {
      value: subClass,
      writable: true,
      configurable: true
    }
  });
  if (superClass) _setPrototypeOf(subClass, superClass);
}

function _setPrototypeOf(o, p) {
  _setPrototypeOf = Object.setPrototypeOf || function _setPrototypeOf(o, p) {
    o.__proto__ = p;
    return o;
  };

  return _setPrototypeOf(o, p);
}

var EventEmitter = __webpack_require__(7).EventEmitter;

var debugerror = __webpack_require__(0)('JsSIP:ERROR:RTCSession:Info');

debugerror.log = console.warn.bind(console);

var JsSIP_C = __webpack_require__(1);

var Exceptions = __webpack_require__(6);

var Utils = __webpack_require__(2);

module.exports =
/*#__PURE__*/
function (_EventEmitter) {
  _inherits(Info, _EventEmitter);

  function Info(session) {
    var _this;

    _classCallCheck(this, Info);

    _this = _possibleConstructorReturn(this, _getPrototypeOf(Info).call(this));
    _this._session = session;
    _this._direction = null;
    _this._contentType = null;
    _this._body = null;
    return _this;
  }

  _createClass(Info, [{
    key: "send",
    value: function send(contentType, body) {
      var _this2 = this;

      var options = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : {};
      this._direction = 'outgoing';

      if (contentType === undefined) {
        throw new TypeError('Not enough arguments');
      } // Check RTCSession Status.


      if (this._session.status !== this._session.C.STATUS_CONFIRMED && this._session.status !== this._session.C.STATUS_WAITING_FOR_ACK) {
        throw new Exceptions.InvalidStateError(this._session.status);
      }

      this._contentType = contentType;
      this._body = body;
      var extraHeaders = Utils.cloneArray(options.extraHeaders);
      extraHeaders.push("Content-Type: ".concat(contentType));

      this._session.newInfo({
        originator: 'local',
        info: this,
        request: this.request
      });

      this._session.sendRequest(JsSIP_C.INFO, {
        extraHeaders: extraHeaders,
        eventHandlers: {
          onSuccessResponse: function onSuccessResponse(response) {
            _this2.emit('succeeded', {
              originator: 'remote',
              response: response
            });
          },
          onErrorResponse: function onErrorResponse(response) {
            _this2.emit('failed', {
              originator: 'remote',
              response: response
            });
          },
          onTransportError: function onTransportError() {
            _this2._session.onTransportError();
          },
          onRequestTimeout: function onRequestTimeout() {
            _this2._session.onRequestTimeout();
          },
          onDialogError: function onDialogError() {
            _this2._session.onDialogError();
          }
        },
        body: body
      });
    }
  }, {
    key: "init_incoming",
    value: function init_incoming(request) {
      this._direction = 'incoming';
      this.request = request;
      request.reply(200);
      this._contentType = request.getHeader('content-type');
      this._body = request.body;

      this._session.newInfo({
        originator: 'remote',
        info: this,
        request: request
      });
    }
  }, {
    key: "contentType",
    get: function get() {
      return this._contentType;
    }
  }, {
    key: "body",
    get: function get() {
      return this._body;
    }
  }]);

  return Info;
}(EventEmitter);

}),
/* 36 */
(function(module, exports, __webpack_require__) {

"use strict";


function _classCallCheck(instance, Constructor) {
  if (!(instance instanceof Constructor)) {
    throw new TypeError("Cannot call a class as a function");
  }
}

function _defineProperties(target, props) {
  for (var i = 0; i < props.length; i++) {
    var descriptor = props[i];
    descriptor.enumerable = descriptor.enumerable || false;
    descriptor.configurable = true;
    if ("value" in descriptor) descriptor.writable = true;
    Object.defineProperty(target, descriptor.key, descriptor);
  }
}

function _createClass(Constructor, protoProps, staticProps) {
  if (protoProps) _defineProperties(Constructor.prototype, protoProps);
  if (staticProps) _defineProperties(Constructor, staticProps);
  return Constructor;
}

var JsSIP_C = __webpack_require__(1);

var debug = __webpack_require__(0)('JsSIP:RTCSession:ReferNotifier');

var C = {
  event_type: 'refer',
  body_type: 'message/sipfrag;version=2.0',
  expires: 300
};

module.exports =
/*#__PURE__*/
function () {
  function ReferNotifier(session, id, expires) {
    _classCallCheck(this, ReferNotifier);

    this._session = session;
    this._id = id;
    this._expires = expires || C.expires;
    this._active = true; // The creation of a Notifier results in an immediate NOTIFY.

    this.notify(100);
  }

  _createClass(ReferNotifier, [{
    key: "notify",
    value: function notify(code, reason) {
      debug('notify()');

      if (this._active === false) {
        return;
      }

      reason = reason || JsSIP_C.REASON_PHRASE[code] || '';
      var state;

      if (code >= 200) {
        state = 'terminated;reason=noresource';
      } else {
        state = "active;expires=".concat(this._expires);
      } // Put this in a try/catch block.


      this._session.sendRequest(JsSIP_C.NOTIFY, {
        extraHeaders: ["Event: ".concat(C.event_type, ";id=").concat(this._id), "Subscription-State: ".concat(state), "Content-Type: ".concat(C.body_type)],
        body: "SIP/2.0 ".concat(code, " ").concat(reason),
        eventHandlers: {
          // If a negative response is received, subscription is canceled.
          onErrorResponse: function onErrorResponse() {
            this._active = false;
          }
        }
      });
    }
  }]);

  return ReferNotifier;
}();

}),
/* 37 */
(function(module, exports, __webpack_require__) {

"use strict";


function _typeof(obj) {
  if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") {
    _typeof = function _typeof(obj) {
      return typeof obj;
    };
  } else {
    _typeof = function _typeof(obj) {
      return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj;
    };
  }

  return _typeof(obj);
}

function _classCallCheck(instance, Constructor) {
  if (!(instance instanceof Constructor)) {
    throw new TypeError("Cannot call a class as a function");
  }
}

function _defineProperties(target, props) {
  for (var i = 0; i < props.length; i++) {
    var descriptor = props[i];
    descriptor.enumerable = descriptor.enumerable || false;
    descriptor.configurable = true;
    if ("value" in descriptor) descriptor.writable = true;
    Object.defineProperty(target, descriptor.key, descriptor);
  }
}

function _createClass(Constructor, protoProps, staticProps) {
  if (protoProps) _defineProperties(Constructor.prototype, protoProps);
  if (staticProps) _defineProperties(Constructor, staticProps);
  return Constructor;
}

function _possibleConstructorReturn(self, call) {
  if (call && (_typeof(call) === "object" || typeof call === "function")) {
    return call;
  }

  return _assertThisInitialized(self);
}

function _assertThisInitialized(self) {
  if (self === void 0) {
    throw new ReferenceError("this hasn't been initialised - super() hasn't been called");
  }

  return self;
}

function _getPrototypeOf(o) {
  _getPrototypeOf = Object.setPrototypeOf ? Object.getPrototypeOf : function _getPrototypeOf(o) {
    return o.__proto__ || Object.getPrototypeOf(o);
  };
  return _getPrototypeOf(o);
}

function _inherits(subClass, superClass) {
  if (typeof superClass !== "function" && superClass !== null) {
    throw new TypeError("Super expression must either be null or a function");
  }

  subClass.prototype = Object.create(superClass && superClass.prototype, {
    constructor: {
      value: subClass,
      writable: true,
      configurable: true
    }
  });
  if (superClass) _setPrototypeOf(subClass, superClass);
}

function _setPrototypeOf(o, p) {
  _setPrototypeOf = Object.setPrototypeOf || function _setPrototypeOf(o, p) {
    o.__proto__ = p;
    return o;
  };

  return _setPrototypeOf(o, p);
}

var EventEmitter = __webpack_require__(7).EventEmitter;

var JsSIP_C = __webpack_require__(1);

var Grammar = __webpack_require__(3);

var Utils = __webpack_require__(2);

var debug = __webpack_require__(0)('JsSIP:RTCSession:ReferSubscriber');

module.exports =
/*#__PURE__*/
function (_EventEmitter) {
  _inherits(ReferSubscriber, _EventEmitter);

  function ReferSubscriber(session) {
    var _this;

    _classCallCheck(this, ReferSubscriber);

    _this = _possibleConstructorReturn(this, _getPrototypeOf(ReferSubscriber).call(this));
    _this._id = null;
    _this._session = session;
    return _this;
  }

  _createClass(ReferSubscriber, [{
    key: "sendRefer",
    value: function sendRefer(target) {
      var _this2 = this;

      var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
      debug('sendRefer()');
      var extraHeaders = Utils.cloneArray(options.extraHeaders);
      var eventHandlers = options.eventHandlers || {}; // Set event handlers.

      for (var event in eventHandlers) {
        if (Object.prototype.hasOwnProperty.call(eventHandlers, event)) {
          this.on(event, eventHandlers[event]);
        }
      } // Replaces URI header field.


      var replaces = null;

      if (options.replaces) {
        replaces = options.replaces._request.call_id;
        replaces += ";to-tag=".concat(options.replaces._to_tag);
        replaces += ";from-tag=".concat(options.replaces._from_tag);
        replaces = encodeURIComponent(replaces);
      } // Refer-To header field.


      var referTo = "Refer-To: <".concat(target).concat(replaces ? "?Replaces=".concat(replaces) : '', ">");
      extraHeaders.push(referTo);
      extraHeaders.push("Contact: ".concat(this._session.contact));

      var request = this._session.sendRequest(JsSIP_C.REFER, {
        extraHeaders: extraHeaders,
        eventHandlers: {
          onSuccessResponse: function onSuccessResponse(response) {
            _this2._requestSucceeded(response);
          },
          onErrorResponse: function onErrorResponse(response) {
            _this2._requestFailed(response, JsSIP_C.causes.REJECTED);
          },
          onTransportError: function onTransportError() {
            _this2._requestFailed(null, JsSIP_C.causes.CONNECTION_ERROR);
          },
          onRequestTimeout: function onRequestTimeout() {
            _this2._requestFailed(null, JsSIP_C.causes.REQUEST_TIMEOUT);
          },
          onDialogError: function onDialogError() {
            _this2._requestFailed(null, JsSIP_C.causes.DIALOG_ERROR);
          }
        }
      });

      this._id = request.cseq;
    }
  }, {
    key: "receiveNotify",
    value: function receiveNotify(request) {
      debug('receiveNotify()');

      if (!request.body) {
        return;
      }

      var status_line = Grammar.parse(request.body.trim(), 'Status_Line');

      if (status_line === -1) {
        debug("receiveNotify() | error parsing NOTIFY body: \"".concat(request.body, "\""));
        return;
      }

      switch (true) {
        case /^100$/.test(status_line.status_code):
          this.emit('trying', {
            request: request,
            status_line: status_line
          });
          break;

        case /^1[0-9]{2}$/.test(status_line.status_code):
          this.emit('progress', {
            request: request,
            status_line: status_line
          });
          break;

        case /^2[0-9]{2}$/.test(status_line.status_code):
          this.emit('accepted', {
            request: request,
            status_line: status_line
          });
          break;

        default:
          this.emit('failed', {
            request: request,
            status_line: status_line
          });
          break;
      }
    }
  }, {
    key: "_requestSucceeded",
    value: function _requestSucceeded(response) {
      debug('REFER succeeded');
      debug('emit "requestSucceeded"');
      this.emit('requestSucceeded', {
        response: response
      });
    }
  }, {
    key: "_requestFailed",
    value: function _requestFailed(response, cause) {
      debug('REFER failed');
      debug('emit "requestFailed"');
      this.emit('requestFailed', {
        response: response || null,
        cause: cause
      });
    }
  }, {
    key: "id",
    get: function get() {
      return this._id;
    }
  }]);

  return ReferSubscriber;
}(EventEmitter);

}),
/* 38 */
(function(module, exports, __webpack_require__) {

"use strict";


function _typeof(obj) {
  if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") {
    _typeof = function _typeof(obj) {
      return typeof obj;
    };
  } else {
    _typeof = function _typeof(obj) {
      return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj;
    };
  }

  return _typeof(obj);
}

function _classCallCheck(instance, Constructor) {
  if (!(instance instanceof Constructor)) {
    throw new TypeError("Cannot call a class as a function");
  }
}

function _defineProperties(target, props) {
  for (var i = 0; i < props.length; i++) {
    var descriptor = props[i];
    descriptor.enumerable = descriptor.enumerable || false;
    descriptor.configurable = true;
    if ("value" in descriptor) descriptor.writable = true;
    Object.defineProperty(target, descriptor.key, descriptor);
  }
}

function _createClass(Constructor, protoProps, staticProps) {
  if (protoProps) _defineProperties(Constructor.prototype, protoProps);
  if (staticProps) _defineProperties(Constructor, staticProps);
  return Constructor;
}

function _possibleConstructorReturn(self, call) {
  if (call && (_typeof(call) === "object" || typeof call === "function")) {
    return call;
  }

  return _assertThisInitialized(self);
}

function _assertThisInitialized(self) {
  if (self === void 0) {
    throw new ReferenceError("this hasn't been initialised - super() hasn't been called");
  }

  return self;
}

function _getPrototypeOf(o) {
  _getPrototypeOf = Object.setPrototypeOf ? Object.getPrototypeOf : function _getPrototypeOf(o) {
    return o.__proto__ || Object.getPrototypeOf(o);
  };
  return _getPrototypeOf(o);
}

function _inherits(subClass, superClass) {
  if (typeof superClass !== "function" && superClass !== null) {
    throw new TypeError("Super expression must either be null or a function");
  }

  subClass.prototype = Object.create(superClass && superClass.prototype, {
    constructor: {
      value: subClass,
      writable: true,
      configurable: true
    }
  });
  if (superClass) _setPrototypeOf(subClass, superClass);
}

function _setPrototypeOf(o, p) {
  _setPrototypeOf = Object.setPrototypeOf || function _setPrototypeOf(o, p) {
    o.__proto__ = p;
    return o;
  };

  return _setPrototypeOf(o, p);
}

var EventEmitter = __webpack_require__(7).EventEmitter;

var JsSIP_C = __webpack_require__(1);

var SIPMessage = __webpack_require__(5);

var Utils = __webpack_require__(2);

var RequestSender = __webpack_require__(10);

var Exceptions = __webpack_require__(6);

var debug = __webpack_require__(0)('JsSIP:Message');

module.exports =
/*#__PURE__*/
function (_EventEmitter) {
  _inherits(Message, _EventEmitter);

  function Message(ua) {
    var _this;

    _classCallCheck(this, Message);

    _this = _possibleConstructorReturn(this, _getPrototypeOf(Message).call(this));
    _this._ua = ua;
    _this._request = null;
    _this._closed = false;
    _this._direction = null;
    _this._local_identity = null;
    _this._remote_identity = null; // Whether an incoming message has been replied.

    _this._is_replied = false; // Custom message empty object for high level use.

    _this._data = {};
    return _this;
  }

  _createClass(Message, [{
    key: "send",
    value: function send(target, body) {
      var _this2 = this;

      var options = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : {};
      var originalTarget = target;

      if (target === undefined || body === undefined) {
        throw new TypeError('Not enough arguments');
      } // Check target validity.


      target = this._ua.normalizeTarget(target);

      if (!target) {
        throw new TypeError("Invalid target: ".concat(originalTarget));
      } // Get call options.


      var extraHeaders = Utils.cloneArray(options.extraHeaders);
      var eventHandlers = options.eventHandlers || {};
      var contentType = options.contentType || 'text/plain'; // Set event handlers.

      for (var event in eventHandlers) {
        if (Object.prototype.hasOwnProperty.call(eventHandlers, event)) {
          this.on(event, eventHandlers[event]);
        }
      }

      extraHeaders.push("Content-Type: ".concat(contentType));
      this._request = new SIPMessage.OutgoingRequest(JsSIP_C.MESSAGE, target, this._ua, null, extraHeaders);

      if (body) {
        this._request.body = body;
      }

      var request_sender = new RequestSender(this._ua, this._request, {
        onRequestTimeout: function onRequestTimeout() {
          _this2._onRequestTimeout();
        },
        onTransportError: function onTransportError() {
          _this2._onTransportError();
        },
        onReceiveResponse: function onReceiveResponse(response) {
          _this2._receiveResponse(response);
        }
      });

      this._newMessage('local', this._request);

      request_sender.send();
    }
  }, {
    key: "init_incoming",
    value: function init_incoming(request) {
      this._request = request;

      this._newMessage('remote', request); // Reply with a 200 OK if the user didn't reply.


      if (!this._is_replied) {
        this._is_replied = true;
        request.reply(200);
      }

      this._close();
    }
    /**
     * Accept the incoming Message
     * Only valid for incoming Messages
     */

  }, {
    key: "accept",
    value: function accept() {
      var options = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};
      var extraHeaders = Utils.cloneArray(options.extraHeaders);
      var body = options.body;

      if (this._direction !== 'incoming') {
        throw new Exceptions.NotSupportedError('"accept" not supported for outgoing Message');
      }

      if (this._is_replied) {
        throw new Error('incoming Message already replied');
      }

      this._is_replied = true;

      this._request.reply(200, null, extraHeaders, body);
    }
    /**
     * Reject the incoming Message
     * Only valid for incoming Messages
     */

  }, {
    key: "reject",
    value: function reject() {
      var options = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};
      var status_code = options.status_code || 480;
      var reason_phrase = options.reason_phrase;
      var extraHeaders = Utils.cloneArray(options.extraHeaders);
      var body = options.body;

      if (this._direction !== 'incoming') {
        throw new Exceptions.NotSupportedError('"reject" not supported for outgoing Message');
      }

      if (this._is_replied) {
        throw new Error('incoming Message already replied');
      }

      if (status_code < 300 || status_code >= 700) {
        throw new TypeError("Invalid status_code: ".concat(status_code));
      }

      this._is_replied = true;

      this._request.reply(status_code, reason_phrase, extraHeaders, body);
    }
  }, {
    key: "_receiveResponse",
    value: function _receiveResponse(response) {
      if (this._closed) {
        return;
      }

      switch (true) {
        case /^1[0-9]{2}$/.test(response.status_code):
          // Ignore provisional responses.
          break;

        case /^2[0-9]{2}$/.test(response.status_code):
          this._succeeded('remote', response);

          break;

        default:
          {
            var cause = Utils.sipErrorCause(response.status_code);

            this._failed('remote', response, cause);

            break;
          }
      }
    }
  }, {
    key: "_onRequestTimeout",
    value: function _onRequestTimeout() {
      if (this._closed) {
        return;
      }

      this._failed('system', null, JsSIP_C.causes.REQUEST_TIMEOUT);
    }
  }, {
    key: "_onTransportError",
    value: function _onTransportError() {
      if (this._closed) {
        return;
      }

      this._failed('system', null, JsSIP_C.causes.CONNECTION_ERROR);
    }
  }, {
    key: "_close",
    value: function _close() {
      this._closed = true;

      this._ua.destroyMessage(this);
    }
    /**
     * Internal Callbacks
     */

  }, {
    key: "_newMessage",
    value: function _newMessage(originator, request) {
      if (originator === 'remote') {
        this._direction = 'incoming';
        this._local_identity = request.to;
        this._remote_identity = request.from;
      } else if (originator === 'local') {
        this._direction = 'outgoing';
        this._local_identity = request.from;
        this._remote_identity = request.to;
      }

      this._ua.newMessage(this, {
        originator: originator,
        message: this,
        request: request
      });
    }
  }, {
    key: "_failed",
    value: function _failed(originator, response, cause) {
      debug('MESSAGE failed');

      this._close();

      debug('emit "failed"');
      this.emit('failed', {
        originator: originator,
        response: response || null,
        cause: cause
      });
    }
  }, {
    key: "_succeeded",
    value: function _succeeded(originator, response) {
      debug('MESSAGE succeeded');

      this._close();

      debug('emit "succeeded"');
      this.emit('succeeded', {
        originator: originator,
        response: response
      });
    }
  }, {
    key: "direction",
    get: function get() {
      return this._direction;
    }
  }, {
    key: "local_identity",
    get: function get() {
      return this._local_identity;
    }
  }, {
    key: "remote_identity",
    get: function get() {
      return this._remote_identity;
    }
  }]);

  return Message;
}(EventEmitter);

}),
/* 39 */
(function(module, exports, __webpack_require__) {

"use strict";


function _classCallCheck(instance, Constructor) {
  if (!(instance instanceof Constructor)) {
    throw new TypeError("Cannot call a class as a function");
  }
}

function _defineProperties(target, props) {
  for (var i = 0; i < props.length; i++) {
    var descriptor = props[i];
    descriptor.enumerable = descriptor.enumerable || false;
    descriptor.configurable = true;
    if ("value" in descriptor) descriptor.writable = true;
    Object.defineProperty(target, descriptor.key, descriptor);
  }
}

function _createClass(Constructor, protoProps, staticProps) {
  if (protoProps) _defineProperties(Constructor.prototype, protoProps);
  if (staticProps) _defineProperties(Constructor, staticProps);
  return Constructor;
}

var Socket = __webpack_require__(18);

var debug = __webpack_require__(0)('JsSIP:Transport');

var debugerror = __webpack_require__(0)('JsSIP:ERROR:Transport');

var PhoneLogger = __webpack_require__(59);

var user;

debugerror.log = console.warn.bind(console);
/**
 * Constants
 */

var C = {
  // Transport status.
  STATUS_CONNECTED: 0,
  STATUS_CONNECTING: 1,
  STATUS_DISCONNECTED: 2,
  // Socket status.
  SOCKET_STATUS_READY: 0,
  SOCKET_STATUS_ERROR: 1,
  // Recovery options.
  recovery_options: {
    min_interval: 2,
    // minimum interval in seconds between recover attempts
    max_interval: 30 // maximum interval in seconds between recover attempts

  }
};
/*
 * Manages one or multiple JsSIP.Socket instances.
 * Is reponsible for transport recovery logic among all socket instances.
 *
 * @socket JsSIP::Socket instance
 */

module.exports =
/*#__PURE__*/
function () {
  function Transport(sockets) {
    var recovery_options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : C.recovery_options;

    _classCallCheck(this, Transport);

    debug('new()');
    this.status = C.STATUS_DISCONNECTED; // Current socket.

    this.socket = null; // Socket collection.

    this.sockets = [];
    this.recovery_options = recovery_options;
    this.recover_attempts = 0;
    this.recovery_timer = null;
    this.close_requested = false;

    if (typeof sockets === 'undefined') {
      throw new TypeError('Invalid argument.' + ' undefined \'sockets\' argument');
    }

    if (!(sockets instanceof Array)) {
      sockets = [sockets];
    }

    sockets.forEach(function (socket) {
      if (!Socket.isSocket(socket.socket)) {
        throw new TypeError('Invalid argument.' + ' invalid \'JsSIP.Socket\' instance');
      }

      if (socket.weight && !Number(socket.weight)) {
        throw new TypeError('Invalid argument.' + ' \'weight\' attribute is not a number');
      }

      this.sockets.push({
        socket: socket.socket,
        weight: socket.weight || 0,
        status: C.SOCKET_STATUS_READY
      });
    }, this); // Get the socket with higher weight.

    this._getSocket();
  }
  /**
   * Instance Methods
   */


  _createClass(Transport, [{
    key: "connect",
    value: function connect() {
      debug('connect()');

      if (this.isConnected()) {
        debug('Transport is already connected');
        return;
      } else if (this.isConnecting()) {
        debug('Transport is connecting');
        return;
      }

      this.close_requested = false;
      this.status = C.STATUS_CONNECTING;
      this.onconnecting({
        socket: this.socket,
        attempts: this.recover_attempts
      });

      if (!this.close_requested) {
        // Bind socket event callbacks.
        this.socket.onconnect = this._onConnect.bind(this);
        this.socket.ondisconnect = this._onDisconnect.bind(this);
        this.socket.ondata = this._onData.bind(this);
        this.socket.connect();
      }

      return;
    }
  }, {
    key: "disconnect",
    value: function disconnect() {
      debug('close()');
      this.close_requested = true;
      this.recover_attempts = 0;
      this.status = C.STATUS_DISCONNECTED; // Clear recovery_timer.

      if (this.recovery_timer !== null) {
        clearTimeout(this.recovery_timer);
        this.recovery_timer = null;
      } // Unbind socket event callbacks.


      this.socket.onconnect = function () {};

      this.socket.ondisconnect = function () {};

      this.socket.ondata = function () {};

      this.socket.disconnect();
      this.ondisconnect({
        socket: this.socket,
        error: false
      });
    }
  }, {
    key: "send",
    value: function send(data) {
      debug('send()');

      if (!this.isConnected()) {
        debugerror('unable to send message, transport is not connected');
        return false;
      }
      // var uri = JSON.parse(JSON.stringify(data.ua._configuration.uri));
      // const user = '<' + uri._scheme + ':' + uri._user + '@' + uri._host + ':' + uri._port + '>';
      var message = data.toString();
      PhoneLogger.debug({
        direction: 'SEND',
        // user: user,
        data: data
      });
      console.log('%c SEND Message! ', 'background: #D11D05; color: #BABACA');
      console.log(message);
      debug("sending message:\n\n".concat(message, "\n"));
      return this.socket.send(message);
    }
  }, {
    key: "isConnected",
    value: function isConnected() {
      return this.status === C.STATUS_CONNECTED;
    }
  }, {
    key: "isConnecting",
    value: function isConnecting() {
      return this.status === C.STATUS_CONNECTING;
    }
    /**
     * Private API.
     */

  }, {
    key: "_reconnect",
    value: function _reconnect() {
      var _this = this;

      this.recover_attempts += 1;
      var k = Math.floor(Math.random() * Math.pow(2, this.recover_attempts) + 1);

      if (k < this.recovery_options.min_interval) {
        k = this.recovery_options.min_interval;
      } else if (k > this.recovery_options.max_interval) {
        k = this.recovery_options.max_interval;
      }

      debug("reconnection attempt: ".concat(this.recover_attempts, ". next connection attempt in ").concat(k, " seconds"));
      this.recovery_timer = setTimeout(function () {
        if (!_this.close_requested && !(_this.isConnected() || _this.isConnecting())) {
          // Get the next available socket with higher weight.
          _this._getSocket(); // Connect the socket.


          _this.connect();
        }
      }, k * 1000);
    }
    /**
     * get the next available socket with higher weight
     */

  }, {
    key: "_getSocket",
    value: function _getSocket() {
      var candidates = [];
      this.sockets.forEach(function (socket) {
        if (socket.status === C.SOCKET_STATUS_ERROR) {
          return; // continue the array iteration
        } else if (candidates.length === 0) {
          candidates.push(socket);
        } else if (socket.weight > candidates[0].weight) {
          candidates = [socket];
        } else if (socket.weight === candidates[0].weight) {
          candidates.push(socket);
        }
      });

      if (candidates.length === 0) {
        // All sockets have failed. reset sockets status.
        this.sockets.forEach(function (socket) {
          socket.status = C.SOCKET_STATUS_READY;
        }); // Get next available socket.

        this._getSocket();

        return;
      }

      var idx = Math.floor(Math.random() * candidates.length);
      this.socket = candidates[idx].socket;
    }
    /**
     * Socket Event Handlers
     */

  }, {
    key: "_onConnect",
    value: function _onConnect() {
      this.recover_attempts = 0;
      this.status = C.STATUS_CONNECTED; // Clear recovery_timer.

      if (this.recovery_timer !== null) {
        clearTimeout(this.recovery_timer);
        this.recovery_timer = null;
      }

      this.onconnect({
        socket: this
      });
    }
  }, {
    key: "_onDisconnect",
    value: function _onDisconnect(error, code, reason) {
      this.status = C.STATUS_DISCONNECTED;
      this.ondisconnect({
        socket: this.socket,
        error: error,
        code: code,
        reason: reason
      });

      if (this.close_requested) {
        return;
      } // Update socket status.
      else {
          this.sockets.forEach(function (socket) {
            if (this.socket === socket.socket) {
              socket.status = C.SOCKET_STATUS_ERROR;
            }
          }, this);
        }

      this._reconnect(error);
    }
  }, {
    key: "_onData",
    value: function _onData(data) {
      // CRLF Keep Alive response from server. Ignore it.
      if (data === '\r\n') {
        debug('received message with CRLF Keep Alive response');
        return;
      } // Binary message.
      else if (typeof data !== 'string') {
          try {
            data = String.fromCharCode.apply(null, new Uint8Array(data));
          } catch (evt) {
            debug('received binary message failed to be converted into string,' + ' message discarded');
            return;
          }

          debug("received binary message:\n\n".concat(data, "\n"));
        } // Text message.
        else {
          // console.log(data)
          // const uri = data.ua._configuration.uri;
          // const user = '<' + uri._scheme + ':' + uri._user + '@' + uri._host + ':' + uri._port + '>'
            PhoneLogger.debug({
              direction: 'RECV',
              // user: user,
              data: data
            });
           
            debug("received text message:\n\n".concat(data, "\n"));
          }
        // console.log("received text message:");
        console.log('%c RECEIVED Message! ', 'background: #02AC1E; color: #BABACA');
        console.log(data);
      this.ondata({
        transport: this,
        message: data
      });
    }
  }, {
    key: "via_transport",
    get: function get() {
      return this.socket.via_transport;
    }
  }, {
    key: "url",
    get: function get() {
      return this.socket.url;
    }
  }, {
    key: "sip_uri",
    get: function get() {
      return this.socket.sip_uri;
    }
  }]);

  return Transport;
}();

}),
/* 40 */
(function(module, exports, __webpack_require__) {

"use strict";


var Grammar = __webpack_require__(3);

var SIPMessage = __webpack_require__(5);

var debugerror = __webpack_require__(0)('JsSIP:ERROR:Parser');

debugerror.log = console.warn.bind(console);
/**
 * Parse SIP Message
 */

exports.parseMessage = function (data, ua) {
  var message;
  var bodyStart;
  var headerEnd = data.indexOf('\r\n');

  if (headerEnd === -1) {
    debugerror('parseMessage() | no CRLF found, not a SIP message');
    return;
  } // Parse first line. Check if it is a Request or a Reply.


  var firstLine = data.substring(0, headerEnd);
  var parsed = Grammar.parse(firstLine, 'Request_Response');

  if (parsed === -1) {
    debugerror("parseMessage() | error parsing first line of SIP message: \"".concat(firstLine, "\""));
    return;
  } else if (!parsed.status_code) {
    message = new SIPMessage.IncomingRequest(ua);
    message.method = parsed.method;
    message.ruri = parsed.uri;
  } else {
    message = new SIPMessage.IncomingResponse();
    message.status_code = parsed.status_code;
    message.reason_phrase = parsed.reason_phrase;
  }

  message.data = data;
  var headerStart = headerEnd + 2;
  /* Loop over every line in data. Detect the end of each header and parse
  * it or simply add to the headers collection.
  */

  while (true) {
    headerEnd = getHeader(data, headerStart); // The SIP message has normally finished.

    if (headerEnd === -2) {
      bodyStart = headerStart + 2;
      break;
    } // Data.indexOf returned -1 due to a malformed message.
    else if (headerEnd === -1) {
        debugerror('parseMessage() | malformed message');
        return;
      }

    parsed = parseHeader(message, data, headerStart, headerEnd);

    if (parsed !== true) {
      debugerror('parseMessage() |', parsed.error);
      return;
    }

    headerStart = headerEnd + 2;
  }
  /* RFC3261 18.3.
   * If there are additional bytes in the transport packet
   * beyond the end of the body, they MUST be discarded.
   */


  if (message.hasHeader('content-length')) {
    var contentLength = message.getHeader('content-length');
    message.body = data.substr(bodyStart, contentLength);
  } else {
    message.body = data.substring(bodyStart);
  }

  return message;
};
/**
 * Extract and parse every header of a SIP message.
 */


function getHeader(data, headerStart) {
  // 'start' position of the header.
  var start = headerStart; // 'end' position of the header.

  var end = 0; // 'partial end' position of the header.

  var partialEnd = 0; // End of message.

  if (data.substring(start, start + 2).match(/(^\r\n)/)) {
    return -2;
  }

  while (end === 0) {
    // Partial End of Header.
    partialEnd = data.indexOf('\r\n', start); // 'indexOf' returns -1 if the value to be found never occurs.

    if (partialEnd === -1) {
      return partialEnd;
    }

    if (!data.substring(partialEnd + 2, partialEnd + 4).match(/(^\r\n)/) && data.charAt(partialEnd + 2).match(/(^\s+)/)) {
      // Not the end of the message. Continue from the next position.
      start = partialEnd + 2;
    } else {
      end = partialEnd;
    }
  }

  return end;
}

function parseHeader(message, data, headerStart, headerEnd) {
  var parsed;
  var hcolonIndex = data.indexOf(':', headerStart);
  var headerName = data.substring(headerStart, hcolonIndex).trim();
  var headerValue = data.substring(hcolonIndex + 1, headerEnd).trim(); // If header-field is well-known, parse it.

  switch (headerName.toLowerCase()) {
    case 'via':
    case 'v':
      message.addHeader('via', headerValue);

      if (message.getHeaders('via').length === 1) {
        parsed = message.parseHeader('Via');

        if (parsed) {
          message.via = parsed;
          message.via_branch = parsed.branch;
        }
      } else {
        parsed = 0;
      }

      break;

    case 'from':
    case 'f':
      message.setHeader('from', headerValue);
      parsed = message.parseHeader('from');

      if (parsed) {
        message.from = parsed;
        message.from_tag = parsed.getParam('tag');
      }

      break;

    case 'to':
    case 't':
      message.setHeader('to', headerValue);
      parsed = message.parseHeader('to');

      if (parsed) {
        message.to = parsed;
        message.to_tag = parsed.getParam('tag');
      }

      break;

    case 'record-route':
      parsed = Grammar.parse(headerValue, 'Record_Route');

      if (parsed === -1) {
        parsed = undefined;
      } else {
        var _iteratorNormalCompletion = true;
        var _didIteratorError = false;
        var _iteratorError = undefined;

        try {
          for (var _iterator = parsed[Symbol.iterator](), _step; !(_iteratorNormalCompletion = (_step = _iterator.next()).done); _iteratorNormalCompletion = true) {
            var header = _step.value;
            message.addHeader('record-route', headerValue.substring(header.possition, header.offset));
            message.headers['Record-Route'][message.getHeaders('record-route').length - 1].parsed = header.parsed;
          }
        } catch (err) {
          _didIteratorError = true;
          _iteratorError = err;
        } finally {
          try {
            if (!_iteratorNormalCompletion && _iterator.return != null) {
              _iterator.return();
            }
          } finally {
            if (_didIteratorError) {
              throw _iteratorError;
            }
          }
        }
      }

      break;

    case 'call-id':
    case 'i':
      message.setHeader('call-id', headerValue);
      parsed = message.parseHeader('call-id');

      if (parsed) {
        message.call_id = headerValue;
      }

      break;

    case 'contact':
    case 'm':
      parsed = Grammar.parse(headerValue, 'Contact');

      if (parsed === -1) {
        parsed = undefined;
      } else {
        var _iteratorNormalCompletion2 = true;
        var _didIteratorError2 = false;
        var _iteratorError2 = undefined;

        try {
          for (var _iterator2 = parsed[Symbol.iterator](), _step2; !(_iteratorNormalCompletion2 = (_step2 = _iterator2.next()).done); _iteratorNormalCompletion2 = true) {
            var _header = _step2.value;
            message.addHeader('contact', headerValue.substring(_header.possition, _header.offset));
            message.headers.Contact[message.getHeaders('contact').length - 1].parsed = _header.parsed;
          }
        } catch (err) {
          _didIteratorError2 = true;
          _iteratorError2 = err;
        } finally {
          try {
            if (!_iteratorNormalCompletion2 && _iterator2.return != null) {
              _iterator2.return();
            }
          } finally {
            if (_didIteratorError2) {
              throw _iteratorError2;
            }
          }
        }
      }

      break;

    case 'content-length':
    case 'l':
      message.setHeader('content-length', headerValue);
      parsed = message.parseHeader('content-length');
      break;

    case 'content-type':
    case 'c':
      message.setHeader('content-type', headerValue);
      parsed = message.parseHeader('content-type');
      break;

    case 'cseq':
      message.setHeader('cseq', headerValue);
      parsed = message.parseHeader('cseq');

      if (parsed) {
        message.cseq = parsed.value;
      }

      if (message instanceof SIPMessage.IncomingResponse) {
        message.method = parsed.method;
      }

      break;

    case 'max-forwards':
      message.setHeader('max-forwards', headerValue);
      parsed = message.parseHeader('max-forwards');
      break;

    case 'www-authenticate':
      message.setHeader('www-authenticate', headerValue);
      parsed = message.parseHeader('www-authenticate');
      break;

    case 'proxy-authenticate':
      message.setHeader('proxy-authenticate', headerValue);
      parsed = message.parseHeader('proxy-authenticate');
      break;

    case 'session-expires':
    case 'x':
      message.setHeader('session-expires', headerValue);
      parsed = message.parseHeader('session-expires');

      if (parsed) {
        message.session_expires = parsed.expires;
        message.session_expires_refresher = parsed.refresher;
      }

      break;

    case 'refer-to':
    case 'r':
      message.setHeader('refer-to', headerValue);
      parsed = message.parseHeader('refer-to');

      if (parsed) {
        message.refer_to = parsed;
      }

      break;

    case 'replaces':
      message.setHeader('replaces', headerValue);
      parsed = message.parseHeader('replaces');

      if (parsed) {
        message.replaces = parsed;
      }

      break;

    case 'event':
    case 'o':
      message.setHeader('event', headerValue);
      parsed = message.parseHeader('event');

      if (parsed) {
        message.event = parsed;
      }

      break;

    default:
      // Do not parse this header.
      message.addHeader(headerName, headerValue);
      parsed = 0;
  }

  if (parsed === undefined) {
    return {
      error: "error parsing header \"".concat(headerName, "\"")
    };
  } else {
    return true;
  }
}

}),
/* 41 */
(function(module, exports, __webpack_require__) {

"use strict";


var JsSIP_C = __webpack_require__(1);

var SIPMessage = __webpack_require__(5);

var Utils = __webpack_require__(2);

var debug = __webpack_require__(0)('JsSIP:sanityCheck'); // Checks for requests and responses.


var all = [minimumHeaders]; // Checks for requests.

var requests = [rfc3261_8_2_2_1, rfc3261_16_3_4, rfc3261_18_3_request, rfc3261_8_2_2_2]; // Checks for responses.

var responses = [rfc3261_8_1_3_3, rfc3261_18_3_response]; // local variables.

var message;
var ua;
var transport;

module.exports = function (m, u, t) {
  message = m;
  ua = u;
  transport = t;

  for (var _i = 0; _i < all.length; _i++) {
    var _check2 = all[_i];

    if (_check2() === false) {
      return false;
    }
  }

  if (message instanceof SIPMessage.IncomingRequest) {
    for (var _i2 = 0; _i2 < requests.length; _i2++) {
      var check = requests[_i2];

      if (check() === false) {
        return false;
      }
    }
  } else if (message instanceof SIPMessage.IncomingResponse) {
    for (var _i3 = 0; _i3 < responses.length; _i3++) {
      var _check = responses[_i3];

      if (_check() === false) {
        return false;
      }
    }
  } // Everything is OK.


  return true;
};
/*
 * Sanity Check for incoming Messages
 *
 * Requests:
 *  - _rfc3261_8_2_2_1_ Receive a Request with a non supported URI scheme
 *  - _rfc3261_16_3_4_ Receive a Request already sent by us
 *   Does not look at via sent-by but at jssip_id, which is inserted as
 *   a prefix in all initial requests generated by the ua
 *  - _rfc3261_18_3_request_ Body Content-Length
 *  - _rfc3261_8_2_2_2_ Merged Requests
 *
 * Responses:
 *  - _rfc3261_8_1_3_3_ Multiple Via headers
 *  - _rfc3261_18_3_response_ Body Content-Length
 *
 * All:
 *  - Minimum headers in a SIP message
 */
// Sanity Check functions for requests.


function rfc3261_8_2_2_1() {
  if (message.s('to').uri.scheme !== 'sip') {
    reply(416);
    return false;
  }
}

function rfc3261_16_3_4() {
  if (!message.to_tag) {
    if (message.call_id.substr(0, 5) === ua.configuration.jssip_id) {
      reply(482);
      return false;
    }
  }
}

function rfc3261_18_3_request() {
  var len = Utils.str_utf8_length(message.body);
  var contentLength = message.getHeader('content-length');

  if (len < contentLength) {
    reply(400);
    return false;
  }
}

function rfc3261_8_2_2_2() {
  var fromTag = message.from_tag;
  var call_id = message.call_id;
  var cseq = message.cseq;
  var tr; // Accept any in-dialog request.

  if (message.to_tag) {
    return;
  } // INVITE request.


  if (message.method === JsSIP_C.INVITE) {
    // If the branch matches the key of any IST then assume it is a retransmission
    // and ignore the INVITE.
    // TODO: we should reply the last response.
    if (ua._transactions.ist[message.via_branch]) {
      return false;
    } // Otherwise check whether it is a merged request.
    else {
        for (var transaction in ua._transactions.ist) {
          if (Object.prototype.hasOwnProperty.call(ua._transactions.ist, transaction)) {
            tr = ua._transactions.ist[transaction];

            if (tr.request.from_tag === fromTag && tr.request.call_id === call_id && tr.request.cseq === cseq) {
              reply(482);
              return false;
            }
          }
        }
      }
  } // Non INVITE request.
  // If the branch matches the key of any NIST then assume it is a retransmission
  // and ignore the request.
  // TODO: we should reply the last response.
  else if (ua._transactions.nist[message.via_branch]) {
      return false;
    } // Otherwise check whether it is a merged request.
    else {
        for (var _transaction in ua._transactions.nist) {
          if (Object.prototype.hasOwnProperty.call(ua._transactions.nist, _transaction)) {
            tr = ua._transactions.nist[_transaction];

            if (tr.request.from_tag === fromTag && tr.request.call_id === call_id && tr.request.cseq === cseq) {
              reply(482);
              return false;
            }
          }
        }
      }
} // Sanity Check functions for responses.


function rfc3261_8_1_3_3() {
  if (message.getHeaders('via').length > 1) {
    debug('more than one Via header field present in the response, dropping the response');
    return false;
  }
}

function rfc3261_18_3_response() {
  var len = Utils.str_utf8_length(message.body),
      contentLength = message.getHeader('content-length');

  if (len < contentLength) {
    debug('message body length is lower than the value in Content-Length header field, dropping the response');
    return false;
  }
} // Sanity Check functions for requests and responses.


function minimumHeaders() {
  var mandatoryHeaders = ['from', 'to', 'call_id', 'cseq', 'via'];

  for (var _i4 = 0; _i4 < mandatoryHeaders.length; _i4++) {
    var header = mandatoryHeaders[_i4];

    if (!message.hasHeader(header)) {
      debug("missing mandatory header field : ".concat(header, ", dropping the response"));
      return false;
    }
  }
} // Reply.


function reply(status_code) {
  var vias = message.getHeaders('via');
  var to;
  var response = "SIP/2.0 ".concat(status_code, " ").concat(JsSIP_C.REASON_PHRASE[status_code], "\r\n");
  var _iteratorNormalCompletion = true;
  var _didIteratorError = false;
  var _iteratorError = undefined;

  try {
    for (var _iterator = vias[Symbol.iterator](), _step; !(_iteratorNormalCompletion = (_step = _iterator.next()).done); _iteratorNormalCompletion = true) {
      var via = _step.value;
      response += "Via: ".concat(via, "\r\n");
    }
  } catch (err) {
    _didIteratorError = true;
    _iteratorError = err;
  } finally {
    try {
      if (!_iteratorNormalCompletion && _iterator.return != null) {
        _iterator.return();
      }
    } finally {
      if (_didIteratorError) {
        throw _iteratorError;
      }
    }
  }

  to = message.getHeader('To');

  if (!message.to_tag) {
    to += ";tag=".concat(Utils.newTag());
  }

  response += "To: ".concat(to, "\r\n");
  response += "From: ".concat(message.getHeader('From'), "\r\n");
  response += "Call-ID: ".concat(message.call_id, "\r\n");
  response += "CSeq: ".concat(message.cseq, " ").concat(message.method, "\r\n");
  response += '\r\n';
  transport.send(response);
}

}),
/* 42 */
(function(module, exports, __webpack_require__) {

"use strict";


var Utils = __webpack_require__(2);

var JsSIP_C = __webpack_require__(1);

var Grammar = __webpack_require__(3);

var URI = __webpack_require__(8);

var Socket = __webpack_require__(18);

var Exceptions = __webpack_require__(6); // Default settings.


exports.settings = {
  // SIP authentication.
  authorization_user: null,
  password: null,
  realm: null,
  ha1: null,
  // SIP account.
  display_name: null,
  uri: null,
  contact_uri: null,
  // SIP instance id (GRUU).
  instance_id: null,
  // Preloaded SIP Route header field.
  use_preloaded_route: false,
  // Session parameters.
  session_timers: true,
  session_timers_refresh_method: JsSIP_C.UPDATE,
  no_answer_timeout: 60,
  // Registration parameters.
  register: true,
  register_expires: 600,
  registrar_server: null,
  // Connection options.
  sockets: null,
  connection_recovery_max_interval: null,
  connection_recovery_min_interval: null,

  /*
   * Host address.
   * Value to be set in Via sent_by and host part of Contact FQDN.
  */
  via_host: "".concat(Utils.createRandomToken(12), ".invalid")
}; // Configuration checks.

var checks = {
  mandatory: {
    sockets: function sockets(_sockets2) {
      /* Allow defining sockets parameter as:
       *  Socket: socket
       *  Array of Socket: [socket1, socket2]
       *  Array of Objects: [{socket: socket1, weight:1}, {socket: Socket2, weight:0}]
       *  Array of Objects and Socket: [{socket: socket1}, socket2]
       */
      var _sockets = [];

      if (Socket.isSocket(_sockets2)) {
        _sockets.push({
          socket: _sockets2
        });
      } else if (Array.isArray(_sockets2) && _sockets2.length) {
        var _iteratorNormalCompletion = true;
        var _didIteratorError = false;
        var _iteratorError = undefined;

        try {
          for (var _iterator = _sockets2[Symbol.iterator](), _step; !(_iteratorNormalCompletion = (_step = _iterator.next()).done); _iteratorNormalCompletion = true) {
            var socket = _step.value;

            if (Object.prototype.hasOwnProperty.call(socket, 'socket') && Socket.isSocket(socket.socket)) {
              _sockets.push(socket);
            } else if (Socket.isSocket(socket)) {
              _sockets.push({
                socket: socket
              });
            }
          }
        } catch (err) {
          _didIteratorError = true;
          _iteratorError = err;
        } finally {
          try {
            if (!_iteratorNormalCompletion && _iterator.return != null) {
              _iterator.return();
            }
          } finally {
            if (_didIteratorError) {
              throw _iteratorError;
            }
          }
        }
      } else {
        return;
      }

      return _sockets;
    },
    uri: function uri(_uri) {
      if (!/^sip:/i.test(_uri)) {
        _uri = "".concat(JsSIP_C.SIP, ":").concat(_uri);
      }

      var parsed = URI.parse(_uri);

      if (!parsed) {
        return;
      } else if (!parsed.user) {
        return;
      } else {
        return parsed;
      }
    }
  },
  optional: {
    authorization_user: function authorization_user(_authorization_user) {
      if (Grammar.parse("\"".concat(_authorization_user, "\""), 'quoted_string') === -1) {
        return;
      } else {
        return _authorization_user;
      }
    },
    user_agent: function user_agent(_user_agent) {
      if (typeof _user_agent === 'string') {
        return _user_agent;
      }
    },
    connection_recovery_max_interval: function connection_recovery_max_interval(_connection_recovery_max_interval) {
      if (Utils.isDecimal(_connection_recovery_max_interval)) {
        var value = Number(_connection_recovery_max_interval);

        if (value > 0) {
          return value;
        }
      }
    },
    connection_recovery_min_interval: function connection_recovery_min_interval(_connection_recovery_min_interval) {
      if (Utils.isDecimal(_connection_recovery_min_interval)) {
        var value = Number(_connection_recovery_min_interval);

        if (value > 0) {
          return value;
        }
      }
    },
    contact_uri: function contact_uri(_contact_uri) {
      if (typeof _contact_uri === 'string') {
        var uri = Grammar.parse(_contact_uri, 'SIP_URI');

        if (uri !== -1) {
          return uri;
        }
      }
    },
    display_name: function display_name(_display_name) {
      if (Grammar.parse("\"".concat(_display_name, "\""), 'display_name') === -1) {
        return;
      } else {
        return _display_name;
      }
    },
    instance_id: function instance_id(_instance_id) {
      if (/^uuid:/i.test(_instance_id)) {
        _instance_id = _instance_id.substr(5);
      }

      if (Grammar.parse(_instance_id, 'uuid') === -1) {
        return;
      } else {
        return _instance_id;
      }
    },
    no_answer_timeout: function no_answer_timeout(_no_answer_timeout) {
      if (Utils.isDecimal(_no_answer_timeout)) {
        var value = Number(_no_answer_timeout);

        if (value > 0) {
          return value;
        }
      }
    },
    session_timers: function session_timers(_session_timers) {
      if (typeof _session_timers === 'boolean') {
        return _session_timers;
      }
    },
    session_timers_refresh_method: function session_timers_refresh_method(method) {
      if (typeof method === 'string') {
        method = method.toUpperCase();

        if (method === JsSIP_C.INVITE || method === JsSIP_C.UPDATE) {
          return method;
        }
      }
    },
    password: function password(_password) {
      return String(_password);
    },
    realm: function realm(_realm) {
      return String(_realm);
    },
    ha1: function ha1(_ha) {
      return String(_ha);
    },
    register: function register(_register) {
      if (typeof _register === 'boolean') {
        return _register;
      }
    },
    register_expires: function register_expires(_register_expires) {
      if (Utils.isDecimal(_register_expires)) {
        var value = Number(_register_expires);

        if (value > 0) {
          return value;
        }
      }
    },
    registrar_server: function registrar_server(_registrar_server) {
      if (!/^sip:/i.test(_registrar_server)) {
        _registrar_server = "".concat(JsSIP_C.SIP, ":").concat(_registrar_server);
      }

      var parsed = URI.parse(_registrar_server);

      if (!parsed) {
        return;
      } else if (parsed.user) {
        return;
      } else {
        return parsed;
      }
    },
    use_preloaded_route: function use_preloaded_route(_use_preloaded_route) {
      if (typeof _use_preloaded_route === 'boolean') {
        return _use_preloaded_route;
      }
    }
  }
};

exports.load = function (dst, src) {
  // Check Mandatory parameters.
  for (var parameter in checks.mandatory) {
    if (!src.hasOwnProperty(parameter)) {
      throw new Exceptions.ConfigurationError(parameter);
    } else {
      var value = src[parameter];
      var checked_value = checks.mandatory[parameter](value);

      if (checked_value !== undefined) {
        dst[parameter] = checked_value;
      } else {
        throw new Exceptions.ConfigurationError(parameter, value);
      }
    }
  } // Check Optional parameters.


  for (var _parameter in checks.optional) {
    if (src.hasOwnProperty(_parameter)) {
      var _value = src[_parameter];
      /* If the parameter value is null, empty string, undefined, empty array
       * or it's a number with NaN value, then apply its default value.
       */

      if (Utils.isEmpty(_value)) {
        continue;
      }

      var _checked_value = checks.optional[_parameter](_value);

      if (_checked_value !== undefined) {
        dst[_parameter] = _checked_value;
      } else {
        throw new Exceptions.ConfigurationError(_parameter, _value);
      }
    }
  }
};

}),
/* 43 */
(function(module, exports, __webpack_require__) {

"use strict";


function _classCallCheck(instance, Constructor) {
  if (!(instance instanceof Constructor)) {
    throw new TypeError("Cannot call a class as a function");
  }
}

function _defineProperties(target, props) {
  for (var i = 0; i < props.length; i++) {
    var descriptor = props[i];
    descriptor.enumerable = descriptor.enumerable || false;
    descriptor.configurable = true;
    if ("value" in descriptor) descriptor.writable = true;
    Object.defineProperty(target, descriptor.key, descriptor);
  }
}

function _createClass(Constructor, protoProps, staticProps) {
  if (protoProps) _defineProperties(Constructor.prototype, protoProps);
  if (staticProps) _defineProperties(Constructor, staticProps);
  return Constructor;
}

var Grammar = __webpack_require__(3);

var debug = __webpack_require__(0)('JsSIP:WebSocketInterface');

var debugerror = __webpack_require__(0)('JsSIP:ERROR:WebSocketInterface');

var PhoneNetwork = __webpack_require__(61);

debugerror.log = console.warn.bind(console);

module.exports =
/*#__PURE__*/
function () {
  function WebSocketInterface(url) {
    _classCallCheck(this, WebSocketInterface);

    debug('new() [url:"%s"]', url);
    this._url = url;
    this._sip_uri = null;
    this._via_transport = null;
    this._ws = null;
    var parsed_url = Grammar.parse(url, 'absoluteURI');

    if (parsed_url === -1) {
      debugerror("invalid WebSocket URI: ".concat(url));
      throw new TypeError("Invalid argument: ".concat(url));
    } else if (parsed_url.scheme !== 'wss' && parsed_url.scheme !== 'ws') {
      debugerror("invalid WebSocket URI scheme: ".concat(parsed_url.scheme));
      throw new TypeError("Invalid argument: ".concat(url));
    } else {
      this._sip_uri = "sip:".concat(parsed_url.host).concat(parsed_url.port ? ":".concat(parsed_url.port) : '', ";transport=udp");
      this._via_transport = parsed_url.scheme.toUpperCase();
    }
  }

  _createClass(WebSocketInterface, [{
    key: "connect",
    value: function connect() {
      debug('connect()');

      if (this.isConnected()) {
        debug("WebSocket ".concat(this._url, " is already connected"));
        return;
      } else if (this.isConnecting()) {

        debug("WebSocket ".concat(this._url, " is connecting"));
        return;
      }

      if (this._ws) {
        this.disconnect();
      }

      debug("connecting to WebSocket ".concat(this._url));

      PhoneNetwork.test();

      try {
        this._ws = new WebSocket(this._url, 'sip');
        this._ws.binaryType = 'arraybuffer';
        this._ws.onopen = this._onOpen.bind(this);
        this._ws.onclose = this._onClose.bind(this);
        this._ws.onmessage = this._onMessage.bind(this);
        this._ws.onerror = this._onError.bind(this);
      } catch (e) {
        this._onError(e);
      }
    }
  }, {
    key: "disconnect",
    value: function disconnect() {
      debug('disconnect()');

      if (this._ws) {
        // Unbind websocket event callbacks.
        this._ws.onopen = function () {};

        this._ws.onclose = function () {};

        this._ws.onmessage = function () {};

        this._ws.onerror = function () {};

        this._ws.close();

        this._ws = null;
      }
    }
  }, {
    key: "send",
    value: function send(message) {
      debug('send()');

      if (this.isConnected()) {
        this._ws.send(message);

        return true;
      } else {
        debugerror('unable to send message, WebSocket is not open');
        return false;
      }
    }
  }, {
    key: "isConnected",
    value: function isConnected() {
      return this._ws && this._ws.readyState === this._ws.OPEN;
    }
  }, {
    key: "isConnecting",
    value: function isConnecting() {
      return this._ws && this._ws.readyState === this._ws.CONNECTING;
    }
    /**
     * WebSocket Event Handlers
     */

  }, {
    key: "_onOpen",
    value: function _onOpen() {
      debug("WebSocket ".concat(this._url, " connected"));
      this.onconnect();
    }
  }, {
    key: "_onClose",
    value: function _onClose(_ref) {
      var wasClean = _ref.wasClean,
          code = _ref.code,
          reason = _ref.reason;
      debug("WebSocket ".concat(this._url, " closed"));

      if (wasClean === false) {
        debug('WebSocket abrupt disconnection');
      }

      var data = {
        socket: this,
        error: !wasClean,
        code: code,
        reason: reason
      };
      this.ondisconnect(data);
    }
  }, {
    key: "_onMessage",
    value: function _onMessage(_ref2) {
      var data = _ref2.data;
      debug('received WebSocket message');
      this.ondata(data);
    }
  }, {
    key: "_onError",
    value: function _onError(e) {
      debugerror("WebSocket ".concat(this._url, " error: ").concat(e));
    }
  }, {
    key: "via_transport",
    get: function get() {
      return this._via_transport;
    },
    set: function set(value) {
      this._via_transport = value.toUpperCase();
    }
  }, {
    key: "sip_uri",
    get: function get() {
      return this._sip_uri;
    }
  }, {
    key: "url",
    get: function get() {
      return this._url;
    }
  }]);

  return WebSocketInterface;
}();

}),
/* 44 */
(function(module, __webpack_exports__, __webpack_require__) {

"use strict";
Object.defineProperty(__webpack_exports__, "__esModule", { value: true });
/* harmony import */ var __WEBPACK_IMPORTED_MODULE_0__adapter_factory_js__ = __webpack_require__(45);
/*
 *  Copyright (c) 2016 The WebRTC project authors. All Rights Reserved.
 *
 *  Use of this source code is governed by a BSD-style license
 *  that can be found in the LICENSE file in the root of the source
 *  tree.
 */

/* eslint-env node */



const adapter = Object(__WEBPACK_IMPORTED_MODULE_0__adapter_factory_js__["a" /* adapterFactory */])({
  window
});
/* harmony default export */ __webpack_exports__["default"] = (adapter);

}),
/* 45 */
(function(module, __webpack_exports__, __webpack_require__) {

"use strict";
/* harmony export (immutable) */ __webpack_exports__["a"] = adapterFactory;
/* harmony import */ var __WEBPACK_IMPORTED_MODULE_0__utils__ = __webpack_require__(4);
/* harmony import */ var __WEBPACK_IMPORTED_MODULE_1__chrome_chrome_shim__ = __webpack_require__(46);
/* harmony import */ var __WEBPACK_IMPORTED_MODULE_2__edge_edge_shim__ = __webpack_require__(49);
/* harmony import */ var __WEBPACK_IMPORTED_MODULE_3__firefox_firefox_shim__ = __webpack_require__(54);
/* harmony import */ var __WEBPACK_IMPORTED_MODULE_4__safari_safari_shim__ = __webpack_require__(57);
/* harmony import */ var __WEBPACK_IMPORTED_MODULE_5__common_shim__ = __webpack_require__(58);
/*
 *  Copyright (c) 2016 The WebRTC project authors. All Rights Reserved.
 *
 *  Use of this source code is governed by a BSD-style license
 *  that can be found in the LICENSE file in the root of the source
 *  tree.
 */
 // Browser shims.





 // Shimming starts here.

function adapterFactory({
  window
} = {}, options = {
  shimChrome: true,
  shimFirefox: true,
  shimEdge: true,
  shimSafari: true
}) {
  // Utils.
  const logging = __WEBPACK_IMPORTED_MODULE_0__utils__["f" /* log */];
  const browserDetails = __WEBPACK_IMPORTED_MODULE_0__utils__["b" /* detectBrowser */](window);
  const adapter = {
    browserDetails,
    commonShim: __WEBPACK_IMPORTED_MODULE_5__common_shim__,
    extractVersion: __WEBPACK_IMPORTED_MODULE_0__utils__["e" /* extractVersion */],
    disableLog: __WEBPACK_IMPORTED_MODULE_0__utils__["c" /* disableLog */],
    disableWarnings: __WEBPACK_IMPORTED_MODULE_0__utils__["d" /* disableWarnings */]
  }; // Shim browser if found.

  switch (browserDetails.browser) {
    case 'chrome':
      if (!__WEBPACK_IMPORTED_MODULE_1__chrome_chrome_shim__ || !__WEBPACK_IMPORTED_MODULE_1__chrome_chrome_shim__["shimPeerConnection"] || !options.shimChrome) {
        logging('Chrome shim is not included in this adapter release.');
        return adapter;
      }

      logging('adapter.js shimming chrome.'); // Export to the adapter global object visible in the browser.

      adapter.browserShim = __WEBPACK_IMPORTED_MODULE_1__chrome_chrome_shim__;
      __WEBPACK_IMPORTED_MODULE_1__chrome_chrome_shim__["shimGetUserMedia"](window);
      __WEBPACK_IMPORTED_MODULE_1__chrome_chrome_shim__["shimMediaStream"](window);
      __WEBPACK_IMPORTED_MODULE_1__chrome_chrome_shim__["shimPeerConnection"](window);
      __WEBPACK_IMPORTED_MODULE_1__chrome_chrome_shim__["shimOnTrack"](window);
      __WEBPACK_IMPORTED_MODULE_1__chrome_chrome_shim__["shimAddTrackRemoveTrack"](window);
      __WEBPACK_IMPORTED_MODULE_1__chrome_chrome_shim__["shimGetSendersWithDtmf"](window);
      __WEBPACK_IMPORTED_MODULE_1__chrome_chrome_shim__["shimSenderReceiverGetStats"](window);
      __WEBPACK_IMPORTED_MODULE_1__chrome_chrome_shim__["fixNegotiationNeeded"](window);
      __WEBPACK_IMPORTED_MODULE_5__common_shim__["shimRTCIceCandidate"](window);
      __WEBPACK_IMPORTED_MODULE_5__common_shim__["shimConnectionState"](window);
      __WEBPACK_IMPORTED_MODULE_5__common_shim__["shimMaxMessageSize"](window);
      __WEBPACK_IMPORTED_MODULE_5__common_shim__["shimSendThrowTypeError"](window);
      break;

    case 'firefox':
      if (!__WEBPACK_IMPORTED_MODULE_3__firefox_firefox_shim__ || !__WEBPACK_IMPORTED_MODULE_3__firefox_firefox_shim__["shimPeerConnection"] || !options.shimFirefox) {
        logging('Firefox shim is not included in this adapter release.');
        return adapter;
      }

      logging('adapter.js shimming firefox.'); // Export to the adapter global object visible in the browser.

      adapter.browserShim = __WEBPACK_IMPORTED_MODULE_3__firefox_firefox_shim__;
      __WEBPACK_IMPORTED_MODULE_3__firefox_firefox_shim__["shimGetUserMedia"](window);
      __WEBPACK_IMPORTED_MODULE_3__firefox_firefox_shim__["shimPeerConnection"](window);
      __WEBPACK_IMPORTED_MODULE_3__firefox_firefox_shim__["shimOnTrack"](window);
      __WEBPACK_IMPORTED_MODULE_3__firefox_firefox_shim__["shimRemoveStream"](window);
      __WEBPACK_IMPORTED_MODULE_3__firefox_firefox_shim__["shimSenderGetStats"](window);
      __WEBPACK_IMPORTED_MODULE_3__firefox_firefox_shim__["shimReceiverGetStats"](window);
      __WEBPACK_IMPORTED_MODULE_3__firefox_firefox_shim__["shimRTCDataChannel"](window);
      __WEBPACK_IMPORTED_MODULE_5__common_shim__["shimRTCIceCandidate"](window);
      __WEBPACK_IMPORTED_MODULE_5__common_shim__["shimConnectionState"](window);
      __WEBPACK_IMPORTED_MODULE_5__common_shim__["shimMaxMessageSize"](window);
      __WEBPACK_IMPORTED_MODULE_5__common_shim__["shimSendThrowTypeError"](window);
      break;

    case 'edge':
      if (!__WEBPACK_IMPORTED_MODULE_2__edge_edge_shim__ || !__WEBPACK_IMPORTED_MODULE_2__edge_edge_shim__["shimPeerConnection"] || !options.shimEdge) {
        logging('MS edge shim is not included in this adapter release.');
        return adapter;
      }

      logging('adapter.js shimming edge.'); // Export to the adapter global object visible in the browser.

      adapter.browserShim = __WEBPACK_IMPORTED_MODULE_2__edge_edge_shim__;
      __WEBPACK_IMPORTED_MODULE_2__edge_edge_shim__["shimGetUserMedia"](window);
      __WEBPACK_IMPORTED_MODULE_2__edge_edge_shim__["shimGetDisplayMedia"](window);
      __WEBPACK_IMPORTED_MODULE_2__edge_edge_shim__["shimPeerConnection"](window);
      __WEBPACK_IMPORTED_MODULE_2__edge_edge_shim__["shimReplaceTrack"](window); // the edge shim implements the full RTCIceCandidate object.

      __WEBPACK_IMPORTED_MODULE_5__common_shim__["shimMaxMessageSize"](window);
      __WEBPACK_IMPORTED_MODULE_5__common_shim__["shimSendThrowTypeError"](window);
      break;

    case 'safari':
      if (!__WEBPACK_IMPORTED_MODULE_4__safari_safari_shim__ || !options.shimSafari) {
        logging('Safari shim is not included in this adapter release.');
        return adapter;
      }

      logging('adapter.js shimming safari.'); // Export to the adapter global object visible in the browser.

      adapter.browserShim = __WEBPACK_IMPORTED_MODULE_4__safari_safari_shim__;
      __WEBPACK_IMPORTED_MODULE_4__safari_safari_shim__["shimRTCIceServerUrls"](window);
      __WEBPACK_IMPORTED_MODULE_4__safari_safari_shim__["shimCreateOfferLegacy"](window);
      __WEBPACK_IMPORTED_MODULE_4__safari_safari_shim__["shimCallbacksAPI"](window);
      __WEBPACK_IMPORTED_MODULE_4__safari_safari_shim__["shimLocalStreamsAPI"](window);
      __WEBPACK_IMPORTED_MODULE_4__safari_safari_shim__["shimRemoteStreamsAPI"](window);
      __WEBPACK_IMPORTED_MODULE_4__safari_safari_shim__["shimTrackEventTransceiver"](window);
      __WEBPACK_IMPORTED_MODULE_4__safari_safari_shim__["shimGetUserMedia"](window);
      __WEBPACK_IMPORTED_MODULE_5__common_shim__["shimRTCIceCandidate"](window);
      __WEBPACK_IMPORTED_MODULE_5__common_shim__["shimMaxMessageSize"](window);
      __WEBPACK_IMPORTED_MODULE_5__common_shim__["shimSendThrowTypeError"](window);
      break;

    default:
      logging('Unsupported browser!');
      break;
  }

  return adapter;
}

}),
/* 46 */
(function(module, __webpack_exports__, __webpack_require__) {

"use strict";
Object.defineProperty(__webpack_exports__, "__esModule", { value: true });
/* harmony export (immutable) */ __webpack_exports__["shimMediaStream"] = shimMediaStream;
/* harmony export (immutable) */ __webpack_exports__["shimOnTrack"] = shimOnTrack;
/* harmony export (immutable) */ __webpack_exports__["shimGetSendersWithDtmf"] = shimGetSendersWithDtmf;
/* harmony export (immutable) */ __webpack_exports__["shimSenderReceiverGetStats"] = shimSenderReceiverGetStats;
/* harmony export (immutable) */ __webpack_exports__["shimAddTrackRemoveTrackWithNative"] = shimAddTrackRemoveTrackWithNative;
/* harmony export (immutable) */ __webpack_exports__["shimAddTrackRemoveTrack"] = shimAddTrackRemoveTrack;
/* harmony export (immutable) */ __webpack_exports__["shimPeerConnection"] = shimPeerConnection;
/* harmony export (immutable) */ __webpack_exports__["fixNegotiationNeeded"] = fixNegotiationNeeded;
/* harmony import */ var __WEBPACK_IMPORTED_MODULE_0__utils_js__ = __webpack_require__(4);
/* harmony import */ var __WEBPACK_IMPORTED_MODULE_1__getusermedia__ = __webpack_require__(47);
/* harmony reexport (binding) */ __webpack_require__.d(__webpack_exports__, "shimGetUserMedia", function() { return __WEBPACK_IMPORTED_MODULE_1__getusermedia__["a"]; });
/* harmony import */ var __WEBPACK_IMPORTED_MODULE_2__getdisplaymedia__ = __webpack_require__(48);
/* harmony reexport (binding) */ __webpack_require__.d(__webpack_exports__, "shimGetDisplayMedia", function() { return __WEBPACK_IMPORTED_MODULE_2__getdisplaymedia__["a"]; });
/*
 *  Copyright (c) 2016 The WebRTC project authors. All Rights Reserved.
 *
 *  Use of this source code is governed by a BSD-style license
 *  that can be found in the LICENSE file in the root of the source
 *  tree.
 */

/* eslint-env node */



/* iterates the stats graph recursively. */

function walkStats(stats, base, resultSet) {
  if (!base || resultSet.has(base.id)) {
    return;
  }

  resultSet.set(base.id, base);
  Object.keys(base).forEach(name => {
    if (name.endsWith('Id')) {
      walkStats(stats, stats.get(base[name]), resultSet);
    } else if (name.endsWith('Ids')) {
      base[name].forEach(id => {
        walkStats(stats, stats.get(id), resultSet);
      });
    }
  });
}
/* filter getStats for a sender/receiver track. */


function filterStats(result, track, outbound) {
  const streamStatsType = outbound ? 'outbound-rtp' : 'inbound-rtp';
  const filteredResult = new Map();

  if (track === null) {
    return filteredResult;
  }

  const trackStats = [];
  result.forEach(value => {
    if (value.type === 'track' && value.trackIdentifier === track.id) {
      trackStats.push(value);
    }
  });
  trackStats.forEach(trackStat => {
    result.forEach(stats => {
      if (stats.type === streamStatsType && stats.trackId === trackStat.id) {
        walkStats(result, stats, filteredResult);
      }
    });
  });
  return filteredResult;
}



function shimMediaStream(window) {
  window.MediaStream = window.MediaStream || window.webkitMediaStream;
}
function shimOnTrack(window) {
  if (typeof window === 'object' && window.RTCPeerConnection && !('ontrack' in window.RTCPeerConnection.prototype)) {
    Object.defineProperty(window.RTCPeerConnection.prototype, 'ontrack', {
      get() {
        return this._ontrack;
      },

      set(f) {
        if (this._ontrack) {
          this.removeEventListener('track', this._ontrack);
        }

        this.addEventListener('track', this._ontrack = f);
      },

      enumerable: true,
      configurable: true
    });
    const origSetRemoteDescription = window.RTCPeerConnection.prototype.setRemoteDescription;

    window.RTCPeerConnection.prototype.setRemoteDescription = function () {
      if (!this._ontrackpoly) {
        this._ontrackpoly = e => {
          // onaddstream does not fire when a track is added to an existing
          // stream. But stream.onaddtrack is implemented so we use that.
          e.stream.addEventListener('addtrack', te => {
            let receiver;

            if (window.RTCPeerConnection.prototype.getReceivers) {
              receiver = this.getReceivers().find(r => r.track && r.track.id === te.track.id);
            } else {
              receiver = {
                track: te.track
              };
            }

            const event = new Event('track');
            event.track = te.track;
            event.receiver = receiver;
            event.transceiver = {
              receiver
            };
            event.streams = [e.stream];
            this.dispatchEvent(event);
          });
          e.stream.getTracks().forEach(track => {
            let receiver;

            if (window.RTCPeerConnection.prototype.getReceivers) {
              receiver = this.getReceivers().find(r => r.track && r.track.id === track.id);
            } else {
              receiver = {
                track
              };
            }

            const event = new Event('track');
            event.track = track;
            event.receiver = receiver;
            event.transceiver = {
              receiver
            };
            event.streams = [e.stream];
            this.dispatchEvent(event);
          });
        };

        this.addEventListener('addstream', this._ontrackpoly);
      }

      return origSetRemoteDescription.apply(this, arguments);
    };
  } else {
    // even if RTCRtpTransceiver is in window, it is only used and
    // emitted in unified-plan. Unfortunately this means we need
    // to unconditionally wrap the event.
    __WEBPACK_IMPORTED_MODULE_0__utils_js__["g" /* wrapPeerConnectionEvent */](window, 'track', e => {
      if (!e.transceiver) {
        Object.defineProperty(e, 'transceiver', {
          value: {
            receiver: e.receiver
          }
        });
      }

      return e;
    });
  }
}
function shimGetSendersWithDtmf(window) {
  // Overrides addTrack/removeTrack, depends on shimAddTrackRemoveTrack.
  if (typeof window === 'object' && window.RTCPeerConnection && !('getSenders' in window.RTCPeerConnection.prototype) && 'createDTMFSender' in window.RTCPeerConnection.prototype) {
    const shimSenderWithDtmf = function (pc, track) {
      return {
        track,

        get dtmf() {
          if (this._dtmf === undefined) {
            if (track.kind === 'audio') {
              this._dtmf = pc.createDTMFSender(track);
            } else {
              this._dtmf = null;
            }
          }

          return this._dtmf;
        },

        _pc: pc
      };
    }; // augment addTrack when getSenders is not available.


    if (!window.RTCPeerConnection.prototype.getSenders) {
      window.RTCPeerConnection.prototype.getSenders = function () {
        this._senders = this._senders || [];
        return this._senders.slice(); // return a copy of the internal state.
      };

      const origAddTrack = window.RTCPeerConnection.prototype.addTrack;

      window.RTCPeerConnection.prototype.addTrack = function (track, stream) {
        let sender = origAddTrack.apply(this, arguments);

        if (!sender) {
          sender = shimSenderWithDtmf(this, track);

          this._senders.push(sender);
        }

        return sender;
      };

      const origRemoveTrack = window.RTCPeerConnection.prototype.removeTrack;

      window.RTCPeerConnection.prototype.removeTrack = function (sender) {
        origRemoveTrack.apply(this, arguments);

        const idx = this._senders.indexOf(sender);

        if (idx !== -1) {
          this._senders.splice(idx, 1);
        }
      };
    }

    const origAddStream = window.RTCPeerConnection.prototype.addStream;

    window.RTCPeerConnection.prototype.addStream = function (stream) {
      this._senders = this._senders || [];
      origAddStream.apply(this, [stream]);
      stream.getTracks().forEach(track => {
        this._senders.push(shimSenderWithDtmf(this, track));
      });
    };

    const origRemoveStream = window.RTCPeerConnection.prototype.removeStream;

    window.RTCPeerConnection.prototype.removeStream = function (stream) {
      this._senders = this._senders || [];
      origRemoveStream.apply(this, [stream]);
      stream.getTracks().forEach(track => {
        const sender = this._senders.find(s => s.track === track);

        if (sender) {
          // remove sender
          this._senders.splice(this._senders.indexOf(sender), 1);
        }
      });
    };
  } else if (typeof window === 'object' && window.RTCPeerConnection && 'getSenders' in window.RTCPeerConnection.prototype && 'createDTMFSender' in window.RTCPeerConnection.prototype && window.RTCRtpSender && !('dtmf' in window.RTCRtpSender.prototype)) {
    const origGetSenders = window.RTCPeerConnection.prototype.getSenders;

    window.RTCPeerConnection.prototype.getSenders = function () {
      const senders = origGetSenders.apply(this, []);
      senders.forEach(sender => sender._pc = this);
      return senders;
    };

    Object.defineProperty(window.RTCRtpSender.prototype, 'dtmf', {
      get() {
        if (this._dtmf === undefined) {
          if (this.track.kind === 'audio') {
            this._dtmf = this._pc.createDTMFSender(this.track);
          } else {
            this._dtmf = null;
          }
        }

        return this._dtmf;
      }

    });
  }
}
function shimSenderReceiverGetStats(window) {
  if (!(typeof window === 'object' && window.RTCPeerConnection && window.RTCRtpSender && window.RTCRtpReceiver)) {
    return;
  } // shim sender stats.


  if (!('getStats' in window.RTCRtpSender.prototype)) {
    const origGetSenders = window.RTCPeerConnection.prototype.getSenders;

    if (origGetSenders) {
      window.RTCPeerConnection.prototype.getSenders = function () {
        const senders = origGetSenders.apply(this, []);
        senders.forEach(sender => sender._pc = this);
        return senders;
      };
    }

    const origAddTrack = window.RTCPeerConnection.prototype.addTrack;

    if (origAddTrack) {
      window.RTCPeerConnection.prototype.addTrack = function () {
        const sender = origAddTrack.apply(this, arguments);
        sender._pc = this;
        return sender;
      };
    }

    window.RTCRtpSender.prototype.getStats = function () {
      const sender = this;
      return this._pc.getStats().then(result =>
      /* Note: this will include stats of all senders that
       *   send a track with the same id as sender.track as
       *   it is not possible to identify the RTCRtpSender.
       */
      filterStats(result, sender.track, true));
    };
  } // shim receiver stats.


  if (!('getStats' in window.RTCRtpReceiver.prototype)) {
    const origGetReceivers = window.RTCPeerConnection.prototype.getReceivers;

    if (origGetReceivers) {
      window.RTCPeerConnection.prototype.getReceivers = function () {
        const receivers = origGetReceivers.apply(this, []);
        receivers.forEach(receiver => receiver._pc = this);
        return receivers;
      };
    }

    __WEBPACK_IMPORTED_MODULE_0__utils_js__["g" /* wrapPeerConnectionEvent */](window, 'track', e => {
      e.receiver._pc = e.srcElement;
      return e;
    });

    window.RTCRtpReceiver.prototype.getStats = function () {
      const receiver = this;
      return this._pc.getStats().then(result => filterStats(result, receiver.track, false));
    };
  }

  if (!('getStats' in window.RTCRtpSender.prototype && 'getStats' in window.RTCRtpReceiver.prototype)) {
    return;
  } // shim RTCPeerConnection.getStats(track).


  const origGetStats = window.RTCPeerConnection.prototype.getStats;

  window.RTCPeerConnection.prototype.getStats = function () {
    if (arguments.length > 0 && arguments[0] instanceof window.MediaStreamTrack) {
      const track = arguments[0];
      let sender;
      let receiver;
      let err;
      this.getSenders().forEach(s => {
        if (s.track === track) {
          if (sender) {
            err = true;
          } else {
            sender = s;
          }
        }
      });
      this.getReceivers().forEach(r => {
        if (r.track === track) {
          if (receiver) {
            err = true;
          } else {
            receiver = r;
          }
        }

        return r.track === track;
      });

      if (err || sender && receiver) {
        return Promise.reject(new DOMException('There are more than one sender or receiver for the track.', 'InvalidAccessError'));
      } else if (sender) {
        return sender.getStats();
      } else if (receiver) {
        return receiver.getStats();
      }

      return Promise.reject(new DOMException('There is no sender or receiver for the track.', 'InvalidAccessError'));
    }

    return origGetStats.apply(this, arguments);
  };
}
function shimAddTrackRemoveTrackWithNative(window) {
  // shim addTrack/removeTrack with native variants in order to make
  // the interactions with legacy getLocalStreams behave as in other browsers.
  // Keeps a mapping stream.id => [stream, rtpsenders...]
  window.RTCPeerConnection.prototype.getLocalStreams = function () {
    this._shimmedLocalStreams = this._shimmedLocalStreams || {};
    return Object.keys(this._shimmedLocalStreams).map(streamId => this._shimmedLocalStreams[streamId][0]);
  };

  const origAddTrack = window.RTCPeerConnection.prototype.addTrack;

  window.RTCPeerConnection.prototype.addTrack = function (track, stream) {
    if (!stream) {
      return origAddTrack.apply(this, arguments);
    }

    this._shimmedLocalStreams = this._shimmedLocalStreams || {};
    const sender = origAddTrack.apply(this, arguments);

    if (!this._shimmedLocalStreams[stream.id]) {
      this._shimmedLocalStreams[stream.id] = [stream, sender];
    } else if (this._shimmedLocalStreams[stream.id].indexOf(sender) === -1) {
      this._shimmedLocalStreams[stream.id].push(sender);
    }

    return sender;
  };

  const origAddStream = window.RTCPeerConnection.prototype.addStream;

  window.RTCPeerConnection.prototype.addStream = function (stream) {
    this._shimmedLocalStreams = this._shimmedLocalStreams || {};
    stream.getTracks().forEach(track => {
      const alreadyExists = this.getSenders().find(s => s.track === track);

      if (alreadyExists) {
        throw new DOMException('Track already exists.', 'InvalidAccessError');
      }
    });
    const existingSenders = this.getSenders();
    origAddStream.apply(this, arguments);
    const newSenders = this.getSenders().filter(newSender => existingSenders.indexOf(newSender) === -1);
    this._shimmedLocalStreams[stream.id] = [stream].concat(newSenders);
  };

  const origRemoveStream = window.RTCPeerConnection.prototype.removeStream;

  window.RTCPeerConnection.prototype.removeStream = function (stream) {
    this._shimmedLocalStreams = this._shimmedLocalStreams || {};
    delete this._shimmedLocalStreams[stream.id];
    return origRemoveStream.apply(this, arguments);
  };

  const origRemoveTrack = window.RTCPeerConnection.prototype.removeTrack;

  window.RTCPeerConnection.prototype.removeTrack = function (sender) {
    this._shimmedLocalStreams = this._shimmedLocalStreams || {};

    if (sender) {
      Object.keys(this._shimmedLocalStreams).forEach(streamId => {
        const idx = this._shimmedLocalStreams[streamId].indexOf(sender);

        if (idx !== -1) {
          this._shimmedLocalStreams[streamId].splice(idx, 1);
        }

        if (this._shimmedLocalStreams[streamId].length === 1) {
          delete this._shimmedLocalStreams[streamId];
        }
      });
    }

    return origRemoveTrack.apply(this, arguments);
  };
}
function shimAddTrackRemoveTrack(window) {
  if (!window.RTCPeerConnection) {
    return;
  }

  const browserDetails = __WEBPACK_IMPORTED_MODULE_0__utils_js__["b" /* detectBrowser */](window); // shim addTrack and removeTrack.

  if (window.RTCPeerConnection.prototype.addTrack && browserDetails.version >= 65) {
    return shimAddTrackRemoveTrackWithNative(window);
  } // also shim pc.getLocalStreams when addTrack is shimmed
  // to return the original streams.


  const origGetLocalStreams = window.RTCPeerConnection.prototype.getLocalStreams;

  window.RTCPeerConnection.prototype.getLocalStreams = function () {
    const nativeStreams = origGetLocalStreams.apply(this);
    this._reverseStreams = this._reverseStreams || {};
    return nativeStreams.map(stream => this._reverseStreams[stream.id]);
  };

  const origAddStream = window.RTCPeerConnection.prototype.addStream;

  window.RTCPeerConnection.prototype.addStream = function (stream) {
    this._streams = this._streams || {};
    this._reverseStreams = this._reverseStreams || {};
    stream.getTracks().forEach(track => {
      const alreadyExists = this.getSenders().find(s => s.track === track);

      if (alreadyExists) {
        throw new DOMException('Track already exists.', 'InvalidAccessError');
      }
    }); // Add identity mapping for consistency with addTrack.
    // Unless this is being used with a stream from addTrack.

    if (!this._reverseStreams[stream.id]) {
      const newStream = new window.MediaStream(stream.getTracks());
      this._streams[stream.id] = newStream;
      this._reverseStreams[newStream.id] = stream;
      stream = newStream;
    }

    origAddStream.apply(this, [stream]);
  };

  const origRemoveStream = window.RTCPeerConnection.prototype.removeStream;

  window.RTCPeerConnection.prototype.removeStream = function (stream) {
    this._streams = this._streams || {};
    this._reverseStreams = this._reverseStreams || {};
    origRemoveStream.apply(this, [this._streams[stream.id] || stream]);
    delete this._reverseStreams[this._streams[stream.id] ? this._streams[stream.id].id : stream.id];
    delete this._streams[stream.id];
  };

  window.RTCPeerConnection.prototype.addTrack = function (track, stream) {
    if (this.signalingState === 'closed') {
      throw new DOMException('The RTCPeerConnection\'s signalingState is \'closed\'.', 'InvalidStateError');
    }

    const streams = [].slice.call(arguments, 1);

    if (streams.length !== 1 || !streams[0].getTracks().find(t => t === track)) {
      // this is not fully correct but all we can manage without
      // [[associated MediaStreams]] internal slot.
      throw new DOMException('The adapter.js addTrack polyfill only supports a single ' + ' stream which is associated with the specified track.', 'NotSupportedError');
    }

    const alreadyExists = this.getSenders().find(s => s.track === track);

    if (alreadyExists) {
      throw new DOMException('Track already exists.', 'InvalidAccessError');
    }

    this._streams = this._streams || {};
    this._reverseStreams = this._reverseStreams || {};
    const oldStream = this._streams[stream.id];

    if (oldStream) {
      // this is using odd Chrome behaviour, use with caution:
      // https://bugs.chromium.org/p/webrtc/issues/detail?id=7815
      // Note: we rely on the high-level addTrack/dtmf shim to
      // create the sender with a dtmf sender.
      oldStream.addTrack(track); // Trigger ONN async.

      Promise.resolve().then(() => {
        this.dispatchEvent(new Event('negotiationneeded'));
      });
    } else {
      const newStream = new window.MediaStream([track]);
      this._streams[stream.id] = newStream;
      this._reverseStreams[newStream.id] = stream;
      this.addStream(newStream);
    }

    return this.getSenders().find(s => s.track === track);
  }; // replace the internal stream id with the external one and
  // vice versa.


  function replaceInternalStreamId(pc, description) {
    let sdp = description.sdp;
    Object.keys(pc._reverseStreams || []).forEach(internalId => {
      const externalStream = pc._reverseStreams[internalId];
      const internalStream = pc._streams[externalStream.id];
      sdp = sdp.replace(new RegExp(internalStream.id, 'g'), externalStream.id);
    });
    return new RTCSessionDescription({
      type: description.type,
      sdp
    });
  }

  function replaceExternalStreamId(pc, description) {
    let sdp = description.sdp;
    Object.keys(pc._reverseStreams || []).forEach(internalId => {
      const externalStream = pc._reverseStreams[internalId];
      const internalStream = pc._streams[externalStream.id];
      sdp = sdp.replace(new RegExp(externalStream.id, 'g'), internalStream.id);
    });
    return new RTCSessionDescription({
      type: description.type,
      sdp
    });
  }

  ['createOffer', 'createAnswer'].forEach(function (method) {
    const nativeMethod = window.RTCPeerConnection.prototype[method];

    window.RTCPeerConnection.prototype[method] = function () {
      const args = arguments;
      const isLegacyCall = arguments.length && typeof arguments[0] === 'function';

      if (isLegacyCall) {
        return nativeMethod.apply(this, [description => {
          const desc = replaceInternalStreamId(this, description);
          args[0].apply(null, [desc]);
        }, err => {
          if (args[1]) {
            args[1].apply(null, err);
          }
        }, arguments[2]]);
      }

      return nativeMethod.apply(this, arguments).then(description => replaceInternalStreamId(this, description));
    };
  });
  const origSetLocalDescription = window.RTCPeerConnection.prototype.setLocalDescription;

  window.RTCPeerConnection.prototype.setLocalDescription = function () {
    if (!arguments.length || !arguments[0].type) {
      return origSetLocalDescription.apply(this, arguments);
    }

    arguments[0] = replaceExternalStreamId(this, arguments[0]);
    return origSetLocalDescription.apply(this, arguments);
  }; // TODO: mangle getStats: https://w3c.github.io/webrtc-stats/#dom-rtcmediastreamstats-streamidentifier


  const origLocalDescription = Object.getOwnPropertyDescriptor(window.RTCPeerConnection.prototype, 'localDescription');
  Object.defineProperty(window.RTCPeerConnection.prototype, 'localDescription', {
    get() {
      const description = origLocalDescription.get.apply(this);

      if (description.type === '') {
        return description;
      }

      return replaceInternalStreamId(this, description);
    }

  });

  window.RTCPeerConnection.prototype.removeTrack = function (sender) {
    if (this.signalingState === 'closed') {
      throw new DOMException('The RTCPeerConnection\'s signalingState is \'closed\'.', 'InvalidStateError');
    } // We can not yet check for sender instanceof RTCRtpSender
    // since we shim RTPSender. So we check if sender._pc is set.


    if (!sender._pc) {
      throw new DOMException('Argument 1 of RTCPeerConnection.removeTrack ' + 'does not implement interface RTCRtpSender.', 'TypeError');
    }

    const isLocal = sender._pc === this;

    if (!isLocal) {
      throw new DOMException('Sender was not created by this connection.', 'InvalidAccessError');
    } // Search for the native stream the senders track belongs to.


    this._streams = this._streams || {};
    let stream;
    Object.keys(this._streams).forEach(streamid => {
      const hasTrack = this._streams[streamid].getTracks().find(track => sender.track === track);

      if (hasTrack) {
        stream = this._streams[streamid];
      }
    });

    if (stream) {
      if (stream.getTracks().length === 1) {
        // if this is the last track of the stream, remove the stream. This
        // takes care of any shimmed _senders.
        this.removeStream(this._reverseStreams[stream.id]);
      } else {
        // relying on the same odd chrome behaviour as above.
        stream.removeTrack(sender.track);
      }

      this.dispatchEvent(new Event('negotiationneeded'));
    }
  };
}
function shimPeerConnection(window) {
  if (!window.RTCPeerConnection && window.webkitRTCPeerConnection) {
    // very basic support for old versions.
    window.RTCPeerConnection = window.webkitRTCPeerConnection;
  }

  if (!window.RTCPeerConnection) {
    return;
  }

  const origGetStats = window.RTCPeerConnection.prototype.getStats;

  window.RTCPeerConnection.prototype.getStats = function (selector, successCallback, errorCallback) {
    const args = arguments; // If selector is a function then we are in the old style stats so just
    // pass back the original getStats format to avoid breaking old users.

    if (arguments.length > 0 && typeof selector === 'function') {
      return origGetStats.apply(this, arguments);
    } // When spec-style getStats is supported, return those when called with
    // either no arguments or the selector argument is null.


    if (origGetStats.length === 0 && (arguments.length === 0 || typeof arguments[0] !== 'function')) {
      return origGetStats.apply(this, []);
    }

    const fixChromeStats_ = function (response) {
      const standardReport = {};
      const reports = response.result();
      reports.forEach(report => {
        const standardStats = {
          id: report.id,
          timestamp: report.timestamp,
          type: {
            localcandidate: 'local-candidate',
            remotecandidate: 'remote-candidate'
          }[report.type] || report.type
        };
        report.names().forEach(name => {
          standardStats[name] = report.stat(name);
        });
        standardReport[standardStats.id] = standardStats;
      });
      return standardReport;
    }; // shim getStats with maplike support


    const makeMapStats = function (stats) {
      return new Map(Object.keys(stats).map(key => [key, stats[key]]));
    };

    if (arguments.length >= 2) {
      const successCallbackWrapper_ = function (response) {
        args[1](makeMapStats(fixChromeStats_(response)));
      };

      return origGetStats.apply(this, [successCallbackWrapper_, arguments[0]]);
    } // promise-support


    return new Promise((resolve, reject) => {
      origGetStats.apply(this, [function (response) {
        resolve(makeMapStats(fixChromeStats_(response)));
      }, reject]);
    }).then(successCallback, errorCallback);
  }; // shim implicit creation of RTCSessionDescription/RTCIceCandidate


  ['setLocalDescription', 'setRemoteDescription', 'addIceCandidate'].forEach(function (method) {
    const nativeMethod = window.RTCPeerConnection.prototype[method];

    window.RTCPeerConnection.prototype[method] = function () {
      arguments[0] = new (method === 'addIceCandidate' ? window.RTCIceCandidate : window.RTCSessionDescription)(arguments[0]);
      return nativeMethod.apply(this, arguments);
    };
  }); // support for addIceCandidate(null or undefined)

  const nativeAddIceCandidate = window.RTCPeerConnection.prototype.addIceCandidate;

  window.RTCPeerConnection.prototype.addIceCandidate = function () {
    if (!arguments[0]) {
      if (arguments[1]) {
        arguments[1].apply(null);
      }

      return Promise.resolve();
    }

    return nativeAddIceCandidate.apply(this, arguments);
  };
}
function fixNegotiationNeeded(window) {
  __WEBPACK_IMPORTED_MODULE_0__utils_js__["g" /* wrapPeerConnectionEvent */](window, 'negotiationneeded', e => {
    const pc = e.target;

    if (pc.signalingState !== 'stable') {
      return;
    }

    return e;
  });
}

}),
/* 47 */
(function(module, __webpack_exports__, __webpack_require__) {

"use strict";
/* harmony export (immutable) */ __webpack_exports__["a"] = shimGetUserMedia;
/* harmony import */ var __WEBPACK_IMPORTED_MODULE_0__utils_js__ = __webpack_require__(4);
/*
 *  Copyright (c) 2016 The WebRTC project authors. All Rights Reserved.
 *
 *  Use of this source code is governed by a BSD-style license
 *  that can be found in the LICENSE file in the root of the source
 *  tree.
 */

/* eslint-env node */



const logging = __WEBPACK_IMPORTED_MODULE_0__utils_js__["f" /* log */];
function shimGetUserMedia(window) {
  const navigator = window && window.navigator;

  if (!navigator.mediaDevices) {
    return;
  }

  const browserDetails = __WEBPACK_IMPORTED_MODULE_0__utils_js__["b" /* detectBrowser */](window);

  const constraintsToChrome_ = function (c) {
    if (typeof c !== 'object' || c.mandatory || c.optional) {
      return c;
    }

    const cc = {};
    Object.keys(c).forEach(key => {
      if (key === 'require' || key === 'advanced' || key === 'mediaSource') {
        return;
      }

      const r = typeof c[key] === 'object' ? c[key] : {
        ideal: c[key]
      };

      if (r.exact !== undefined && typeof r.exact === 'number') {
        r.min = r.max = r.exact;
      }

      const oldname_ = function (prefix, name) {
        if (prefix) {
          return prefix + name.charAt(0).toUpperCase() + name.slice(1);
        }

        return name === 'deviceId' ? 'sourceId' : name;
      };

      if (r.ideal !== undefined) {
        cc.optional = cc.optional || [];
        let oc = {};

        if (typeof r.ideal === 'number') {
          oc[oldname_('min', key)] = r.ideal;
          cc.optional.push(oc);
          oc = {};
          oc[oldname_('max', key)] = r.ideal;
          cc.optional.push(oc);
        } else {
          oc[oldname_('', key)] = r.ideal;
          cc.optional.push(oc);
        }
      }

      if (r.exact !== undefined && typeof r.exact !== 'number') {
        cc.mandatory = cc.mandatory || {};
        cc.mandatory[oldname_('', key)] = r.exact;
      } else {
        ['min', 'max'].forEach(mix => {
          if (r[mix] !== undefined) {
            cc.mandatory = cc.mandatory || {};
            cc.mandatory[oldname_(mix, key)] = r[mix];
          }
        });
      }
    });

    if (c.advanced) {
      cc.optional = (cc.optional || []).concat(c.advanced);
    }

    return cc;
  };

  const shimConstraints_ = function (constraints, func) {
    if (browserDetails.version >= 61) {
      return func(constraints);
    }

    constraints = JSON.parse(JSON.stringify(constraints));

    if (constraints && typeof constraints.audio === 'object') {
      const remap = function (obj, a, b) {
        if (a in obj && !(b in obj)) {
          obj[b] = obj[a];
          delete obj[a];
        }
      };

      constraints = JSON.parse(JSON.stringify(constraints));
      remap(constraints.audio, 'autoGainControl', 'googAutoGainControl');
      remap(constraints.audio, 'noiseSuppression', 'googNoiseSuppression');
      constraints.audio = constraintsToChrome_(constraints.audio);
    }

    if (constraints && typeof constraints.video === 'object') {
      // Shim facingMode for mobile & surface pro.
      let face = constraints.video.facingMode;
      face = face && (typeof face === 'object' ? face : {
        ideal: face
      });
      const getSupportedFacingModeLies = browserDetails.version < 66;

      if (face && (face.exact === 'user' || face.exact === 'environment' || face.ideal === 'user' || face.ideal === 'environment') && !(navigator.mediaDevices.getSupportedConstraints && navigator.mediaDevices.getSupportedConstraints().facingMode && !getSupportedFacingModeLies)) {
        delete constraints.video.facingMode;
        let matches;

        if (face.exact === 'environment' || face.ideal === 'environment') {
          matches = ['back', 'rear'];
        } else if (face.exact === 'user' || face.ideal === 'user') {
          matches = ['front'];
        }

        if (matches) {
          // Look for matches in label, or use last cam for back (typical).
          return navigator.mediaDevices.enumerateDevices().then(devices => {
            devices = devices.filter(d => d.kind === 'videoinput');
            let dev = devices.find(d => matches.some(match => d.label.toLowerCase().includes(match)));

            if (!dev && devices.length && matches.includes('back')) {
              dev = devices[devices.length - 1]; // more likely the back cam
            }

            if (dev) {
              constraints.video.deviceId = face.exact ? {
                exact: dev.deviceId
              } : {
                ideal: dev.deviceId
              };
            }

            constraints.video = constraintsToChrome_(constraints.video);
            logging('chrome: ' + JSON.stringify(constraints));
            return func(constraints);
          });
        }
      }

      constraints.video = constraintsToChrome_(constraints.video);
    }

    logging('chrome: ' + JSON.stringify(constraints));
    return func(constraints);
  };

  const shimError_ = function (e) {
    if (browserDetails.version >= 64) {
      return e;
    }

    return {
      name: {
        PermissionDeniedError: 'NotAllowedError',
        PermissionDismissedError: 'NotAllowedError',
        InvalidStateError: 'NotAllowedError',
        DevicesNotFoundError: 'NotFoundError',
        ConstraintNotSatisfiedError: 'OverconstrainedError',
        TrackStartError: 'NotReadableError',
        MediaDeviceFailedDueToShutdown: 'NotAllowedError',
        MediaDeviceKillSwitchOn: 'NotAllowedError',
        TabCaptureError: 'AbortError',
        ScreenCaptureError: 'AbortError',
        DeviceCaptureError: 'AbortError'
      }[e.name] || e.name,
      message: e.message,
      constraint: e.constraint || e.constraintName,

      toString() {
        return this.name + (this.message && ': ') + this.message;
      }

    };
  };

  const getUserMedia_ = function (constraints, onSuccess, onError) {
    shimConstraints_(constraints, c => {
      navigator.webkitGetUserMedia(c, onSuccess, e => {
        if (onError) {
          onError(shimError_(e));
        }
      });
    });
  };

  navigator.getUserMedia = getUserMedia_.bind(navigator); // Even though Chrome 45 has navigator.mediaDevices and a getUserMedia
  // function which returns a Promise, it does not accept spec-style
  // constraints.

  const origGetUserMedia = navigator.mediaDevices.getUserMedia.bind(navigator.mediaDevices);

  navigator.mediaDevices.getUserMedia = function (cs) {
    return shimConstraints_(cs, c => origGetUserMedia(c).then(stream => {
      if (c.audio && !stream.getAudioTracks().length || c.video && !stream.getVideoTracks().length) {
        stream.getTracks().forEach(track => {
          track.stop();
        });
        throw new DOMException('', 'NotFoundError');
      }

      return stream;
    }, e => Promise.reject(shimError_(e))));
  };
}

}),
/* 48 */
(function(module, __webpack_exports__, __webpack_require__) {

"use strict";
/* harmony export (immutable) */ __webpack_exports__["a"] = shimGetDisplayMedia;
/*
 *  Copyright (c) 2018 The adapter.js project authors. All Rights Reserved.
 *
 *  Use of this source code is governed by a BSD-style license
 *  that can be found in the LICENSE file in the root of the source
 *  tree.
 */

/* eslint-env node */


function shimGetDisplayMedia(window, getSourceId) {
  if (window.navigator.mediaDevices && 'getDisplayMedia' in window.navigator.mediaDevices) {
    return;
  }

  if (!window.navigator.mediaDevices) {
    return;
  } // getSourceId is a function that returns a promise resolving with
  // the sourceId of the screen/window/tab to be shared.


  if (typeof getSourceId !== 'function') {
    console.error('shimGetDisplayMedia: getSourceId argument is not ' + 'a function');
    return;
  }

  window.navigator.mediaDevices.getDisplayMedia = function (constraints) {
    return getSourceId(constraints).then(sourceId => {
      const widthSpecified = constraints.video && constraints.video.width;
      const heightSpecified = constraints.video && constraints.video.height;
      const frameRateSpecified = constraints.video && constraints.video.frameRate;
      constraints.video = {
        mandatory: {
          chromeMediaSource: 'desktop',
          chromeMediaSourceId: sourceId,
          maxFrameRate: frameRateSpecified || 3
        }
      };

      if (widthSpecified) {
        constraints.video.mandatory.maxWidth = widthSpecified;
      }

      if (heightSpecified) {
        constraints.video.mandatory.maxHeight = heightSpecified;
      }

      return window.navigator.mediaDevices.getUserMedia(constraints);
    });
  };
}

}),
/* 49 */
(function(module, __webpack_exports__, __webpack_require__) {

"use strict";
Object.defineProperty(__webpack_exports__, "__esModule", { value: true });
/* harmony export (immutable) */ __webpack_exports__["shimPeerConnection"] = shimPeerConnection;
/* harmony export (immutable) */ __webpack_exports__["shimReplaceTrack"] = shimReplaceTrack;
/* harmony import */ var __WEBPACK_IMPORTED_MODULE_0__utils__ = __webpack_require__(4);
/* harmony import */ var __WEBPACK_IMPORTED_MODULE_1__filtericeservers__ = __webpack_require__(50);
/* harmony import */ var __WEBPACK_IMPORTED_MODULE_2_rtcpeerconnection_shim__ = __webpack_require__(51);
/* harmony import */ var __WEBPACK_IMPORTED_MODULE_2_rtcpeerconnection_shim___default = __webpack_require__.n(__WEBPACK_IMPORTED_MODULE_2_rtcpeerconnection_shim__);
/* harmony import */ var __WEBPACK_IMPORTED_MODULE_3__getusermedia__ = __webpack_require__(52);
/* harmony reexport (binding) */ __webpack_require__.d(__webpack_exports__, "shimGetUserMedia", function() { return __WEBPACK_IMPORTED_MODULE_3__getusermedia__["a"]; });
/* harmony import */ var __WEBPACK_IMPORTED_MODULE_4__getdisplaymedia__ = __webpack_require__(53);
/* harmony reexport (binding) */ __webpack_require__.d(__webpack_exports__, "shimGetDisplayMedia", function() { return __WEBPACK_IMPORTED_MODULE_4__getdisplaymedia__["a"]; });
/*
 *  Copyright (c) 2016 The WebRTC project authors. All Rights Reserved.
 *
 *  Use of this source code is governed by a BSD-style license
 *  that can be found in the LICENSE file in the root of the source
 *  tree.
 */

/* eslint-env node */







function shimPeerConnection(window) {
  const browserDetails = __WEBPACK_IMPORTED_MODULE_0__utils__["b" /* detectBrowser */](window);

  if (window.RTCIceGatherer) {
    if (!window.RTCIceCandidate) {
      window.RTCIceCandidate = function (args) {
        return args;
      };
    }

    if (!window.RTCSessionDescription) {
      window.RTCSessionDescription = function (args) {
        return args;
      };
    } // this adds an additional event listener to MediaStrackTrack that signals
    // when a tracks enabled property was changed. Workaround for a bug in
    // addStream, see below. No longer required in 15025+


    if (browserDetails.version < 15025) {
      const origMSTEnabled = Object.getOwnPropertyDescriptor(window.MediaStreamTrack.prototype, 'enabled');
      Object.defineProperty(window.MediaStreamTrack.prototype, 'enabled', {
        set(value) {
          origMSTEnabled.set.call(this, value);
          const ev = new Event('enabled');
          ev.enabled = value;
          this.dispatchEvent(ev);
        }

      });
    }
  } // ORTC defines the DTMF sender a bit different.
  // https://github.com/w3c/ortc/issues/714


  if (window.RTCRtpSender && !('dtmf' in window.RTCRtpSender.prototype)) {
    Object.defineProperty(window.RTCRtpSender.prototype, 'dtmf', {
      get() {
        if (this._dtmf === undefined) {
          if (this.track.kind === 'audio') {
            this._dtmf = new window.RTCDtmfSender(this);
          } else if (this.track.kind === 'video') {
            this._dtmf = null;
          }
        }

        return this._dtmf;
      }

    });
  } // Edge currently only implements the RTCDtmfSender, not the
  // RTCDTMFSender alias. See http://draft.ortc.org/#rtcdtmfsender2*


  if (window.RTCDtmfSender && !window.RTCDTMFSender) {
    window.RTCDTMFSender = window.RTCDtmfSender;
  }

  const RTCPeerConnectionShim = __WEBPACK_IMPORTED_MODULE_2_rtcpeerconnection_shim___default()(window, browserDetails.version);

  window.RTCPeerConnection = function (config) {
    if (config && config.iceServers) {
      config.iceServers = Object(__WEBPACK_IMPORTED_MODULE_1__filtericeservers__["a" /* filterIceServers */])(config.iceServers, browserDetails.version);
      __WEBPACK_IMPORTED_MODULE_0__utils__["f" /* log */]('ICE servers after filtering:', config.iceServers);
    }

    return new RTCPeerConnectionShim(config);
  };

  window.RTCPeerConnection.prototype = RTCPeerConnectionShim.prototype;
}
function shimReplaceTrack(window) {
  // ORTC has replaceTrack -- https://github.com/w3c/ortc/issues/614
  if (window.RTCRtpSender && !('replaceTrack' in window.RTCRtpSender.prototype)) {
    window.RTCRtpSender.prototype.replaceTrack = window.RTCRtpSender.prototype.setTrack;
  }
}

}),
/* 50 */
(function(module, __webpack_exports__, __webpack_require__) {

"use strict";
/* harmony export (immutable) */ __webpack_exports__["a"] = filterIceServers;
/* harmony import */ var __WEBPACK_IMPORTED_MODULE_0__utils__ = __webpack_require__(4);
/*
 *  Copyright (c) 2018 The WebRTC project authors. All Rights Reserved.
 *
 *  Use of this source code is governed by a BSD-style license
 *  that can be found in the LICENSE file in the root of the source
 *  tree.
 */

/* eslint-env node */


 // Edge does not like
// 1) stun: filtered after 14393 unless ?transport=udp is present
// 2) turn: that does not have all of turn:host:port?transport=udp
// 3) turn: with ipv6 addresses
// 4) turn: occurring muliple times

function filterIceServers(iceServers, edgeVersion) {
  let hasTurn = false;
  iceServers = JSON.parse(JSON.stringify(iceServers));
  return iceServers.filter(server => {
    if (server && (server.urls || server.url)) {
      var urls = server.urls || server.url;

      if (server.url && !server.urls) {
        __WEBPACK_IMPORTED_MODULE_0__utils__["a" /* deprecated */]('RTCIceServer.url', 'RTCIceServer.urls');
      }

      const isString = typeof urls === 'string';

      if (isString) {
        urls = [urls];
      }

      urls = urls.filter(url => {
        // filter STUN unconditionally.
        if (url.indexOf('stun:') === 0) {
          return false;
        }

        const validTurn = url.startsWith('turn') && !url.startsWith('turn:[') && url.includes('transport=udp');

        if (validTurn && !hasTurn) {
          hasTurn = true;
          return true;
        }

        return validTurn && !hasTurn;
      });
      delete server.url;
      server.urls = isString ? urls[0] : urls;
      return !!urls.length;
    }
  });
}

}),
/* 51 */
(function(module, exports, __webpack_require__) {

"use strict";
/*
 *  Copyright (c) 2017 The WebRTC project authors. All Rights Reserved.
 *
 *  Use of this source code is governed by a BSD-style license
 *  that can be found in the LICENSE file in the root of the source
 *  tree.
 */

/* eslint-env node */


var SDPUtils = __webpack_require__(19);

function fixStatsType(stat) {
  return {
    inboundrtp: 'inbound-rtp',
    outboundrtp: 'outbound-rtp',
    candidatepair: 'candidate-pair',
    localcandidate: 'local-candidate',
    remotecandidate: 'remote-candidate'
  }[stat.type] || stat.type;
}

function writeMediaSection(transceiver, caps, type, stream, dtlsRole) {
  var sdp = SDPUtils.writeRtpDescription(transceiver.kind, caps); // Map ICE parameters (ufrag, pwd) to SDP.

  sdp += SDPUtils.writeIceParameters(transceiver.iceGatherer.getLocalParameters()); // Map DTLS parameters to SDP.

  sdp += SDPUtils.writeDtlsParameters(transceiver.dtlsTransport.getLocalParameters(), type === 'offer' ? 'actpass' : dtlsRole || 'active');
  sdp += 'a=mid:' + transceiver.mid + '\r\n';

  if (transceiver.rtpSender && transceiver.rtpReceiver) {
    sdp += 'a=sendrecv\r\n';
  } else if (transceiver.rtpSender) {
    sdp += 'a=sendonly\r\n';
  } else if (transceiver.rtpReceiver) {
    sdp += 'a=recvonly\r\n';
  } else {
    sdp += 'a=inactive\r\n';
  }

  if (transceiver.rtpSender) {
    var trackId = transceiver.rtpSender._initialTrackId || transceiver.rtpSender.track.id;
    transceiver.rtpSender._initialTrackId = trackId; // spec.

    var msid = 'msid:' + (stream ? stream.id : '-') + ' ' + trackId + '\r\n';
    sdp += 'a=' + msid; // for Chrome. Legacy should no longer be required.

    sdp += 'a=ssrc:' + transceiver.sendEncodingParameters[0].ssrc + ' ' + msid; // RTX

    if (transceiver.sendEncodingParameters[0].rtx) {
      sdp += 'a=ssrc:' + transceiver.sendEncodingParameters[0].rtx.ssrc + ' ' + msid;
      sdp += 'a=ssrc-group:FID ' + transceiver.sendEncodingParameters[0].ssrc + ' ' + transceiver.sendEncodingParameters[0].rtx.ssrc + '\r\n';
    }
  } // FIXME: this should be written by writeRtpDescription.


  sdp += 'a=ssrc:' + transceiver.sendEncodingParameters[0].ssrc + ' cname:' + SDPUtils.localCName + '\r\n';

  if (transceiver.rtpSender && transceiver.sendEncodingParameters[0].rtx) {
    sdp += 'a=ssrc:' + transceiver.sendEncodingParameters[0].rtx.ssrc + ' cname:' + SDPUtils.localCName + '\r\n';
  }

  return sdp;
} // Edge does not like
// 1) stun: filtered after 14393 unless ?transport=udp is present
// 2) turn: that does not have all of turn:host:port?transport=udp
// 3) turn: with ipv6 addresses
// 4) turn: occurring muliple times


function filterIceServers(iceServers, edgeVersion) {
  var hasTurn = false;
  iceServers = JSON.parse(JSON.stringify(iceServers));
  return iceServers.filter(function (server) {
    if (server && (server.urls || server.url)) {
      var urls = server.urls || server.url;

      if (server.url && !server.urls) {
        console.warn('RTCIceServer.url is deprecated! Use urls instead.');
      }

      var isString = typeof urls === 'string';

      if (isString) {
        urls = [urls];
      }

      urls = urls.filter(function (url) {
        var validTurn = url.indexOf('turn:') === 0 && url.indexOf('transport=udp') !== -1 && url.indexOf('turn:[') === -1 && !hasTurn;

        if (validTurn) {
          hasTurn = true;
          return true;
        }

        return url.indexOf('stun:') === 0 && edgeVersion >= 14393 && url.indexOf('?transport=udp') === -1;
      });
      delete server.url;
      server.urls = isString ? urls[0] : urls;
      return !!urls.length;
    }
  });
} // Determines the intersection of local and remote capabilities.


function getCommonCapabilities(localCapabilities, remoteCapabilities) {
  var commonCapabilities = {
    codecs: [],
    headerExtensions: [],
    fecMechanisms: []
  };

  var findCodecByPayloadType = function (pt, codecs) {
    pt = parseInt(pt, 10);

    for (var i = 0; i < codecs.length; i++) {
      if (codecs[i].payloadType === pt || codecs[i].preferredPayloadType === pt) {
        return codecs[i];
      }
    }
  };

  var rtxCapabilityMatches = function (lRtx, rRtx, lCodecs, rCodecs) {
    var lCodec = findCodecByPayloadType(lRtx.parameters.apt, lCodecs);
    var rCodec = findCodecByPayloadType(rRtx.parameters.apt, rCodecs);
    return lCodec && rCodec && lCodec.name.toLowerCase() === rCodec.name.toLowerCase();
  };

  localCapabilities.codecs.forEach(function (lCodec) {
    for (var i = 0; i < remoteCapabilities.codecs.length; i++) {
      var rCodec = remoteCapabilities.codecs[i];

      if (lCodec.name.toLowerCase() === rCodec.name.toLowerCase() && lCodec.clockRate === rCodec.clockRate) {
        if (lCodec.name.toLowerCase() === 'rtx' && lCodec.parameters && rCodec.parameters.apt) {
          // for RTX we need to find the local rtx that has a apt
          // which points to the same local codec as the remote one.
          if (!rtxCapabilityMatches(lCodec, rCodec, localCapabilities.codecs, remoteCapabilities.codecs)) {
            continue;
          }
        }

        rCodec = JSON.parse(JSON.stringify(rCodec)); // deepcopy
        // number of channels is the highest common number of channels

        rCodec.numChannels = Math.min(lCodec.numChannels, rCodec.numChannels); // push rCodec so we reply with offerer payload type

        commonCapabilities.codecs.push(rCodec); // determine common feedback mechanisms

        rCodec.rtcpFeedback = rCodec.rtcpFeedback.filter(function (fb) {
          for (var j = 0; j < lCodec.rtcpFeedback.length; j++) {
            if (lCodec.rtcpFeedback[j].type === fb.type && lCodec.rtcpFeedback[j].parameter === fb.parameter) {
              return true;
            }
          }

          return false;
        }); // FIXME: also need to determine .parameters
        //  see https://github.com/openpeer/ortc/issues/569

        break;
      }
    }
  });
  localCapabilities.headerExtensions.forEach(function (lHeaderExtension) {
    for (var i = 0; i < remoteCapabilities.headerExtensions.length; i++) {
      var rHeaderExtension = remoteCapabilities.headerExtensions[i];

      if (lHeaderExtension.uri === rHeaderExtension.uri) {
        commonCapabilities.headerExtensions.push(rHeaderExtension);
        break;
      }
    }
  }); // FIXME: fecMechanisms

  return commonCapabilities;
} // is action=setLocalDescription with type allowed in signalingState


function isActionAllowedInSignalingState(action, type, signalingState) {
  return {
    offer: {
      setLocalDescription: ['stable', 'have-local-offer'],
      setRemoteDescription: ['stable', 'have-remote-offer']
    },
    answer: {
      setLocalDescription: ['have-remote-offer', 'have-local-pranswer'],
      setRemoteDescription: ['have-local-offer', 'have-remote-pranswer']
    }
  }[type][action].indexOf(signalingState) !== -1;
}

function maybeAddCandidate(iceTransport, candidate) {
  // Edge's internal representation adds some fields therefore
  // not all fieldѕ are taken into account.
  var alreadyAdded = iceTransport.getRemoteCandidates().find(function (remoteCandidate) {
    return candidate.foundation === remoteCandidate.foundation && candidate.ip === remoteCandidate.ip && candidate.port === remoteCandidate.port && candidate.priority === remoteCandidate.priority && candidate.protocol === remoteCandidate.protocol && candidate.type === remoteCandidate.type;
  });

  if (!alreadyAdded) {
    iceTransport.addRemoteCandidate(candidate);
  }

  return !alreadyAdded;
}

function makeError(name, description) {
  var e = new Error(description);
  e.name = name; // legacy error codes from https://heycam.github.io/webidl/#idl-DOMException-error-names

  e.code = {
    NotSupportedError: 9,
    InvalidStateError: 11,
    InvalidAccessError: 15,
    TypeError: undefined,
    OperationError: undefined
  }[name];
  return e;
}

module.exports = function (window, edgeVersion) {
  // https://w3c.github.io/mediacapture-main/#mediastream
  // Helper function to add the track to the stream and
  // dispatch the event ourselves.
  function addTrackToStreamAndFireEvent(track, stream) {
    stream.addTrack(track);
    stream.dispatchEvent(new window.MediaStreamTrackEvent('addtrack', {
      track: track
    }));
  }

  function removeTrackFromStreamAndFireEvent(track, stream) {
    stream.removeTrack(track);
    stream.dispatchEvent(new window.MediaStreamTrackEvent('removetrack', {
      track: track
    }));
  }

  function fireAddTrack(pc, track, receiver, streams) {
    var trackEvent = new Event('track');
    trackEvent.track = track;
    trackEvent.receiver = receiver;
    trackEvent.transceiver = {
      receiver: receiver
    };
    trackEvent.streams = streams;
    window.setTimeout(function () {
      pc._dispatchEvent('track', trackEvent);
    });
  }

  var RTCPeerConnection = function (config) {
    var pc = this;

    var _eventTarget = document.createDocumentFragment();

    ['addEventListener', 'removeEventListener', 'dispatchEvent'].forEach(function (method) {
      pc[method] = _eventTarget[method].bind(_eventTarget);
    });
    this.canTrickleIceCandidates = null;
    this.needNegotiation = false;
    this.localStreams = [];
    this.remoteStreams = [];
    this._localDescription = null;
    this._remoteDescription = null;
    this.signalingState = 'stable';
    this.iceConnectionState = 'new';
    this.connectionState = 'new';
    this.iceGatheringState = 'new';
    config = JSON.parse(JSON.stringify(config || {}));
    this.usingBundle = config.bundlePolicy === 'max-bundle';

    if (config.rtcpMuxPolicy === 'negotiate') {
      throw makeError('NotSupportedError', 'rtcpMuxPolicy \'negotiate\' is not supported');
    } else if (!config.rtcpMuxPolicy) {
      config.rtcpMuxPolicy = 'require';
    }

    switch (config.iceTransportPolicy) {
      case 'all':
      case 'relay':
        break;

      default:
        config.iceTransportPolicy = 'all';
        break;
    }

    switch (config.bundlePolicy) {
      case 'balanced':
      case 'max-compat':
      case 'max-bundle':
        break;

      default:
        config.bundlePolicy = 'balanced';
        break;
    }

    config.iceServers = filterIceServers(config.iceServers || [], edgeVersion);
    this._iceGatherers = [];

    if (config.iceCandidatePoolSize) {
      for (var i = config.iceCandidatePoolSize; i > 0; i--) {
        this._iceGatherers.push(new window.RTCIceGatherer({
          iceServers: config.iceServers,
          gatherPolicy: config.iceTransportPolicy
        }));
      }
    } else {
      config.iceCandidatePoolSize = 0;
    }

    this._config = config; // per-track iceGathers, iceTransports, dtlsTransports, rtpSenders, ...
    // everything that is needed to describe a SDP m-line.

    this.transceivers = [];
    this._sdpSessionId = SDPUtils.generateSessionId();
    this._sdpSessionVersion = 0;
    this._dtlsRole = undefined; // role for a=setup to use in answers.

    this._isClosed = false;
  };

  Object.defineProperty(RTCPeerConnection.prototype, 'localDescription', {
    configurable: true,
    get: function () {
      return this._localDescription;
    }
  });
  Object.defineProperty(RTCPeerConnection.prototype, 'remoteDescription', {
    configurable: true,
    get: function () {
      return this._remoteDescription;
    }
  }); // set up event handlers on prototype

  RTCPeerConnection.prototype.onicecandidate = null;
  RTCPeerConnection.prototype.onaddstream = null;
  RTCPeerConnection.prototype.ontrack = null;
  RTCPeerConnection.prototype.onremovestream = null;
  RTCPeerConnection.prototype.onsignalingstatechange = null;
  RTCPeerConnection.prototype.oniceconnectionstatechange = null;
  RTCPeerConnection.prototype.onconnectionstatechange = null;
  RTCPeerConnection.prototype.onicegatheringstatechange = null;
  RTCPeerConnection.prototype.onnegotiationneeded = null;
  RTCPeerConnection.prototype.ondatachannel = null;

  RTCPeerConnection.prototype._dispatchEvent = function (name, event) {
    if (this._isClosed) {
      return;
    }

    this.dispatchEvent(event);

    if (typeof this['on' + name] === 'function') {
      this['on' + name](event);
    }
  };

  RTCPeerConnection.prototype._emitGatheringStateChange = function () {
    var event = new Event('icegatheringstatechange');

    this._dispatchEvent('icegatheringstatechange', event);
  };

  RTCPeerConnection.prototype.getConfiguration = function () {
    return this._config;
  };

  RTCPeerConnection.prototype.getLocalStreams = function () {
    return this.localStreams;
  };

  RTCPeerConnection.prototype.getRemoteStreams = function () {
    return this.remoteStreams;
  }; // internal helper to create a transceiver object.
  // (which is not yet the same as the WebRTC 1.0 transceiver)


  RTCPeerConnection.prototype._createTransceiver = function (kind, doNotAdd) {
    var hasBundleTransport = this.transceivers.length > 0;
    var transceiver = {
      track: null,
      iceGatherer: null,
      iceTransport: null,
      dtlsTransport: null,
      localCapabilities: null,
      remoteCapabilities: null,
      rtpSender: null,
      rtpReceiver: null,
      kind: kind,
      mid: null,
      sendEncodingParameters: null,
      recvEncodingParameters: null,
      stream: null,
      associatedRemoteMediaStreams: [],
      wantReceive: true
    };

    if (this.usingBundle && hasBundleTransport) {
      transceiver.iceTransport = this.transceivers[0].iceTransport;
      transceiver.dtlsTransport = this.transceivers[0].dtlsTransport;
    } else {
      var transports = this._createIceAndDtlsTransports();

      transceiver.iceTransport = transports.iceTransport;
      transceiver.dtlsTransport = transports.dtlsTransport;
    }

    if (!doNotAdd) {
      this.transceivers.push(transceiver);
    }

    return transceiver;
  };

  RTCPeerConnection.prototype.addTrack = function (track, stream) {
    if (this._isClosed) {
      throw makeError('InvalidStateError', 'Attempted to call addTrack on a closed peerconnection.');
    }

    var alreadyExists = this.transceivers.find(function (s) {
      return s.track === track;
    });

    if (alreadyExists) {
      throw makeError('InvalidAccessError', 'Track already exists.');
    }

    var transceiver;

    for (var i = 0; i < this.transceivers.length; i++) {
      if (!this.transceivers[i].track && this.transceivers[i].kind === track.kind) {
        transceiver = this.transceivers[i];
      }
    }

    if (!transceiver) {
      transceiver = this._createTransceiver(track.kind);
    }

    this._maybeFireNegotiationNeeded();

    if (this.localStreams.indexOf(stream) === -1) {
      this.localStreams.push(stream);
    }

    transceiver.track = track;
    transceiver.stream = stream;
    transceiver.rtpSender = new window.RTCRtpSender(track, transceiver.dtlsTransport);
    return transceiver.rtpSender;
  };

  RTCPeerConnection.prototype.addStream = function (stream) {
    var pc = this;

    if (edgeVersion >= 15025) {
      stream.getTracks().forEach(function (track) {
        pc.addTrack(track, stream);
      });
    } else {
      // Clone is necessary for local demos mostly, attaching directly
      // to two different senders does not work (build 10547).
      // Fixed in 15025 (or earlier)
      var clonedStream = stream.clone();
      stream.getTracks().forEach(function (track, idx) {
        var clonedTrack = clonedStream.getTracks()[idx];
        track.addEventListener('enabled', function (event) {
          clonedTrack.enabled = event.enabled;
        });
      });
      clonedStream.getTracks().forEach(function (track) {
        pc.addTrack(track, clonedStream);
      });
    }
  };

  RTCPeerConnection.prototype.removeTrack = function (sender) {
    if (this._isClosed) {
      throw makeError('InvalidStateError', 'Attempted to call removeTrack on a closed peerconnection.');
    }

    if (!(sender instanceof window.RTCRtpSender)) {
      throw new TypeError('Argument 1 of RTCPeerConnection.removeTrack ' + 'does not implement interface RTCRtpSender.');
    }

    var transceiver = this.transceivers.find(function (t) {
      return t.rtpSender === sender;
    });

    if (!transceiver) {
      throw makeError('InvalidAccessError', 'Sender was not created by this connection.');
    }

    var stream = transceiver.stream;
    transceiver.rtpSender.stop();
    transceiver.rtpSender = null;
    transceiver.track = null;
    transceiver.stream = null; // remove the stream from the set of local streams

    var localStreams = this.transceivers.map(function (t) {
      return t.stream;
    });

    if (localStreams.indexOf(stream) === -1 && this.localStreams.indexOf(stream) > -1) {
      this.localStreams.splice(this.localStreams.indexOf(stream), 1);
    }

    this._maybeFireNegotiationNeeded();
  };

  RTCPeerConnection.prototype.removeStream = function (stream) {
    var pc = this;
    stream.getTracks().forEach(function (track) {
      var sender = pc.getSenders().find(function (s) {
        return s.track === track;
      });

      if (sender) {
        pc.removeTrack(sender);
      }
    });
  };

  RTCPeerConnection.prototype.getSenders = function () {
    return this.transceivers.filter(function (transceiver) {
      return !!transceiver.rtpSender;
    }).map(function (transceiver) {
      return transceiver.rtpSender;
    });
  };

  RTCPeerConnection.prototype.getReceivers = function () {
    return this.transceivers.filter(function (transceiver) {
      return !!transceiver.rtpReceiver;
    }).map(function (transceiver) {
      return transceiver.rtpReceiver;
    });
  };

  RTCPeerConnection.prototype._createIceGatherer = function (sdpMLineIndex, usingBundle) {
    var pc = this;

    if (usingBundle && sdpMLineIndex > 0) {
      return this.transceivers[0].iceGatherer;
    } else if (this._iceGatherers.length) {
      return this._iceGatherers.shift();
    }

    var iceGatherer = new window.RTCIceGatherer({
      iceServers: this._config.iceServers,
      gatherPolicy: this._config.iceTransportPolicy
    });
    Object.defineProperty(iceGatherer, 'state', {
      value: 'new',
      writable: true
    });
    this.transceivers[sdpMLineIndex].bufferedCandidateEvents = [];

    this.transceivers[sdpMLineIndex].bufferCandidates = function (event) {
      var end = !event.candidate || Object.keys(event.candidate).length === 0; // polyfill since RTCIceGatherer.state is not implemented in
      // Edge 10547 yet.

      iceGatherer.state = end ? 'completed' : 'gathering';

      if (pc.transceivers[sdpMLineIndex].bufferedCandidateEvents !== null) {
        pc.transceivers[sdpMLineIndex].bufferedCandidateEvents.push(event);
      }
    };

    iceGatherer.addEventListener('localcandidate', this.transceivers[sdpMLineIndex].bufferCandidates);
    return iceGatherer;
  }; // start gathering from an RTCIceGatherer.


  RTCPeerConnection.prototype._gather = function (mid, sdpMLineIndex) {
    var pc = this;
    var iceGatherer = this.transceivers[sdpMLineIndex].iceGatherer;

    if (iceGatherer.onlocalcandidate) {
      return;
    }

    var bufferedCandidateEvents = this.transceivers[sdpMLineIndex].bufferedCandidateEvents;
    this.transceivers[sdpMLineIndex].bufferedCandidateEvents = null;
    iceGatherer.removeEventListener('localcandidate', this.transceivers[sdpMLineIndex].bufferCandidates);

    iceGatherer.onlocalcandidate = function (evt) {
      if (pc.usingBundle && sdpMLineIndex > 0) {
        // if we know that we use bundle we can drop candidates with
        // ѕdpMLineIndex > 0. If we don't do this then our state gets
        // confused since we dispose the extra ice gatherer.
        return;
      }

      var event = new Event('icecandidate');
      event.candidate = {
        sdpMid: mid,
        sdpMLineIndex: sdpMLineIndex
      };
      var cand = evt.candidate; // Edge emits an empty object for RTCIceCandidateComplete‥

      var end = !cand || Object.keys(cand).length === 0;

      if (end) {
        // polyfill since RTCIceGatherer.state is not implemented in
        // Edge 10547 yet.
        if (iceGatherer.state === 'new' || iceGatherer.state === 'gathering') {
          iceGatherer.state = 'completed';
        }
      } else {
        if (iceGatherer.state === 'new') {
          iceGatherer.state = 'gathering';
        } // RTCIceCandidate doesn't have a component, needs to be added


        cand.component = 1; // also the usernameFragment. TODO: update SDP to take both variants.

        cand.ufrag = iceGatherer.getLocalParameters().usernameFragment;
        var serializedCandidate = SDPUtils.writeCandidate(cand);
        event.candidate = Object.assign(event.candidate, SDPUtils.parseCandidate(serializedCandidate));
        event.candidate.candidate = serializedCandidate;

        event.candidate.toJSON = function () {
          return {
            candidate: event.candidate.candidate,
            sdpMid: event.candidate.sdpMid,
            sdpMLineIndex: event.candidate.sdpMLineIndex,
            usernameFragment: event.candidate.usernameFragment
          };
        };
      } // update local description.


      var sections = SDPUtils.getMediaSections(pc._localDescription.sdp);

      if (!end) {
        sections[event.candidate.sdpMLineIndex] += 'a=' + event.candidate.candidate + '\r\n';
      } else {
        sections[event.candidate.sdpMLineIndex] += 'a=end-of-candidates\r\n';
      }

      pc._localDescription.sdp = SDPUtils.getDescription(pc._localDescription.sdp) + sections.join('');
      var complete = pc.transceivers.every(function (transceiver) {
        return transceiver.iceGatherer && transceiver.iceGatherer.state === 'completed';
      });

      if (pc.iceGatheringState !== 'gathering') {
        pc.iceGatheringState = 'gathering';

        pc._emitGatheringStateChange();
      } // Emit candidate. Also emit null candidate when all gatherers are
      // complete.


      if (!end) {
        pc._dispatchEvent('icecandidate', event);
      }

      if (complete) {
        pc._dispatchEvent('icecandidate', new Event('icecandidate'));

        pc.iceGatheringState = 'complete';

        pc._emitGatheringStateChange();
      }
    }; // emit already gathered candidates.


    window.setTimeout(function () {
      bufferedCandidateEvents.forEach(function (e) {
        iceGatherer.onlocalcandidate(e);
      });
    }, 0);
  }; // Create ICE transport and DTLS transport.


  RTCPeerConnection.prototype._createIceAndDtlsTransports = function () {
    var pc = this;
    var iceTransport = new window.RTCIceTransport(null);

    iceTransport.onicestatechange = function () {
      pc._updateIceConnectionState();

      pc._updateConnectionState();
    };

    var dtlsTransport = new window.RTCDtlsTransport(iceTransport);

    dtlsTransport.ondtlsstatechange = function () {
      pc._updateConnectionState();
    };

    dtlsTransport.onerror = function () {
      // onerror does not set state to failed by itself.
      Object.defineProperty(dtlsTransport, 'state', {
        value: 'failed',
        writable: true
      });

      pc._updateConnectionState();
    };

    return {
      iceTransport: iceTransport,
      dtlsTransport: dtlsTransport
    };
  }; // Destroy ICE gatherer, ICE transport and DTLS transport.
  // Without triggering the callbacks.


  RTCPeerConnection.prototype._disposeIceAndDtlsTransports = function (sdpMLineIndex) {
    var iceGatherer = this.transceivers[sdpMLineIndex].iceGatherer;

    if (iceGatherer) {
      delete iceGatherer.onlocalcandidate;
      delete this.transceivers[sdpMLineIndex].iceGatherer;
    }

    var iceTransport = this.transceivers[sdpMLineIndex].iceTransport;

    if (iceTransport) {
      delete iceTransport.onicestatechange;
      delete this.transceivers[sdpMLineIndex].iceTransport;
    }

    var dtlsTransport = this.transceivers[sdpMLineIndex].dtlsTransport;

    if (dtlsTransport) {
      delete dtlsTransport.ondtlsstatechange;
      delete dtlsTransport.onerror;
      delete this.transceivers[sdpMLineIndex].dtlsTransport;
    }
  }; // Start the RTP Sender and Receiver for a transceiver.


  RTCPeerConnection.prototype._transceive = function (transceiver, send, recv) {
    var params = getCommonCapabilities(transceiver.localCapabilities, transceiver.remoteCapabilities);

    if (send && transceiver.rtpSender) {
      params.encodings = transceiver.sendEncodingParameters;
      params.rtcp = {
        cname: SDPUtils.localCName,
        compound: transceiver.rtcpParameters.compound
      };

      if (transceiver.recvEncodingParameters.length) {
        params.rtcp.ssrc = transceiver.recvEncodingParameters[0].ssrc;
      }

      transceiver.rtpSender.send(params);
    }

    if (recv && transceiver.rtpReceiver && params.codecs.length > 0) {
      // remove RTX field in Edge 14942
      if (transceiver.kind === 'video' && transceiver.recvEncodingParameters && edgeVersion < 15019) {
        transceiver.recvEncodingParameters.forEach(function (p) {
          delete p.rtx;
        });
      }

      if (transceiver.recvEncodingParameters.length) {
        params.encodings = transceiver.recvEncodingParameters;
      } else {
        params.encodings = [{}];
      }

      params.rtcp = {
        compound: transceiver.rtcpParameters.compound
      };

      if (transceiver.rtcpParameters.cname) {
        params.rtcp.cname = transceiver.rtcpParameters.cname;
      }

      if (transceiver.sendEncodingParameters.length) {
        params.rtcp.ssrc = transceiver.sendEncodingParameters[0].ssrc;
      }

      transceiver.rtpReceiver.receive(params);
    }
  };

  RTCPeerConnection.prototype.setLocalDescription = function (description) {
    var pc = this; // Note: pranswer is not supported.

    if (['offer', 'answer'].indexOf(description.type) === -1) {
      return Promise.reject(makeError('TypeError', 'Unsupported type "' + description.type + '"'));
    }

    if (!isActionAllowedInSignalingState('setLocalDescription', description.type, pc.signalingState) || pc._isClosed) {
      return Promise.reject(makeError('InvalidStateError', 'Can not set local ' + description.type + ' in state ' + pc.signalingState));
    }

    var sections;
    var sessionpart;

    if (description.type === 'offer') {
      // VERY limited support for SDP munging. Limited to:
      // * changing the order of codecs
      sections = SDPUtils.splitSections(description.sdp);
      sessionpart = sections.shift();
      sections.forEach(function (mediaSection, sdpMLineIndex) {
        var caps = SDPUtils.parseRtpParameters(mediaSection);
        pc.transceivers[sdpMLineIndex].localCapabilities = caps;
      });
      pc.transceivers.forEach(function (transceiver, sdpMLineIndex) {
        pc._gather(transceiver.mid, sdpMLineIndex);
      });
    } else if (description.type === 'answer') {
      sections = SDPUtils.splitSections(pc._remoteDescription.sdp);
      sessionpart = sections.shift();
      var isIceLite = SDPUtils.matchPrefix(sessionpart, 'a=ice-lite').length > 0;
      sections.forEach(function (mediaSection, sdpMLineIndex) {
        var transceiver = pc.transceivers[sdpMLineIndex];
        var iceGatherer = transceiver.iceGatherer;
        var iceTransport = transceiver.iceTransport;
        var dtlsTransport = transceiver.dtlsTransport;
        var localCapabilities = transceiver.localCapabilities;
        var remoteCapabilities = transceiver.remoteCapabilities; // treat bundle-only as not-rejected.

        var rejected = SDPUtils.isRejected(mediaSection) && SDPUtils.matchPrefix(mediaSection, 'a=bundle-only').length === 0;

        if (!rejected && !transceiver.rejected) {
          var remoteIceParameters = SDPUtils.getIceParameters(mediaSection, sessionpart);
          var remoteDtlsParameters = SDPUtils.getDtlsParameters(mediaSection, sessionpart);

          if (isIceLite) {
            remoteDtlsParameters.role = 'server';
          }

          if (!pc.usingBundle || sdpMLineIndex === 0) {
            pc._gather(transceiver.mid, sdpMLineIndex);

            if (iceTransport.state === 'new') {
              iceTransport.start(iceGatherer, remoteIceParameters, isIceLite ? 'controlling' : 'controlled');
            }

            if (dtlsTransport.state === 'new') {
              dtlsTransport.start(remoteDtlsParameters);
            }
          } // Calculate intersection of capabilities.


          var params = getCommonCapabilities(localCapabilities, remoteCapabilities); // Start the RTCRtpSender. The RTCRtpReceiver for this
          // transceiver has already been started in setRemoteDescription.

          pc._transceive(transceiver, params.codecs.length > 0, false);
        }
      });
    }

    pc._localDescription = {
      type: description.type,
      sdp: description.sdp
    };

    if (description.type === 'offer') {
      pc._updateSignalingState('have-local-offer');
    } else {
      pc._updateSignalingState('stable');
    }

    return Promise.resolve();
  };

  RTCPeerConnection.prototype.setRemoteDescription = function (description) {
    var pc = this; // Note: pranswer is not supported.

    if (['offer', 'answer'].indexOf(description.type) === -1) {
      return Promise.reject(makeError('TypeError', 'Unsupported type "' + description.type + '"'));
    }

    if (!isActionAllowedInSignalingState('setRemoteDescription', description.type, pc.signalingState) || pc._isClosed) {
      return Promise.reject(makeError('InvalidStateError', 'Can not set remote ' + description.type + ' in state ' + pc.signalingState));
    }

    var streams = {};
    pc.remoteStreams.forEach(function (stream) {
      streams[stream.id] = stream;
    });
    var receiverList = [];
    var sections = SDPUtils.splitSections(description.sdp);
    var sessionpart = sections.shift();
    var isIceLite = SDPUtils.matchPrefix(sessionpart, 'a=ice-lite').length > 0;
    var usingBundle = SDPUtils.matchPrefix(sessionpart, 'a=group:BUNDLE ').length > 0;
    pc.usingBundle = usingBundle;
    var iceOptions = SDPUtils.matchPrefix(sessionpart, 'a=ice-options:')[0];

    if (iceOptions) {
      pc.canTrickleIceCandidates = iceOptions.substr(14).split(' ').indexOf('trickle') >= 0;
    } else {
      pc.canTrickleIceCandidates = false;
    }

    sections.forEach(function (mediaSection, sdpMLineIndex) {
      var lines = SDPUtils.splitLines(mediaSection);
      var kind = SDPUtils.getKind(mediaSection); // treat bundle-only as not-rejected.

      var rejected = SDPUtils.isRejected(mediaSection) && SDPUtils.matchPrefix(mediaSection, 'a=bundle-only').length === 0;
      var protocol = lines[0].substr(2).split(' ')[2];
      var direction = SDPUtils.getDirection(mediaSection, sessionpart);
      var remoteMsid = SDPUtils.parseMsid(mediaSection);
      var mid = SDPUtils.getMid(mediaSection) || SDPUtils.generateIdentifier(); // Reject datachannels which are not implemented yet.

      if (rejected || kind === 'application' && (protocol === 'DTLS/SCTP' || protocol === 'UDP/DTLS/SCTP')) {
        // TODO: this is dangerous in the case where a non-rejected m-line
        //     becomes rejected.
        pc.transceivers[sdpMLineIndex] = {
          mid: mid,
          kind: kind,
          protocol: protocol,
          rejected: true
        };
        return;
      }

      if (!rejected && pc.transceivers[sdpMLineIndex] && pc.transceivers[sdpMLineIndex].rejected) {
        // recycle a rejected transceiver.
        pc.transceivers[sdpMLineIndex] = pc._createTransceiver(kind, true);
      }

      var transceiver;
      var iceGatherer;
      var iceTransport;
      var dtlsTransport;
      var rtpReceiver;
      var sendEncodingParameters;
      var recvEncodingParameters;
      var localCapabilities;
      var track; // FIXME: ensure the mediaSection has rtcp-mux set.

      var remoteCapabilities = SDPUtils.parseRtpParameters(mediaSection);
      var remoteIceParameters;
      var remoteDtlsParameters;

      if (!rejected) {
        remoteIceParameters = SDPUtils.getIceParameters(mediaSection, sessionpart);
        remoteDtlsParameters = SDPUtils.getDtlsParameters(mediaSection, sessionpart);
        remoteDtlsParameters.role = 'client';
      }

      recvEncodingParameters = SDPUtils.parseRtpEncodingParameters(mediaSection);
      var rtcpParameters = SDPUtils.parseRtcpParameters(mediaSection);
      var isComplete = SDPUtils.matchPrefix(mediaSection, 'a=end-of-candidates', sessionpart).length > 0;
      var cands = SDPUtils.matchPrefix(mediaSection, 'a=candidate:').map(function (cand) {
        return SDPUtils.parseCandidate(cand);
      }).filter(function (cand) {
        return cand.component === 1;
      }); // Check if we can use BUNDLE and dispose transports.

      if ((description.type === 'offer' || description.type === 'answer') && !rejected && usingBundle && sdpMLineIndex > 0 && pc.transceivers[sdpMLineIndex]) {
        pc._disposeIceAndDtlsTransports(sdpMLineIndex);

        pc.transceivers[sdpMLineIndex].iceGatherer = pc.transceivers[0].iceGatherer;
        pc.transceivers[sdpMLineIndex].iceTransport = pc.transceivers[0].iceTransport;
        pc.transceivers[sdpMLineIndex].dtlsTransport = pc.transceivers[0].dtlsTransport;

        if (pc.transceivers[sdpMLineIndex].rtpSender) {
          pc.transceivers[sdpMLineIndex].rtpSender.setTransport(pc.transceivers[0].dtlsTransport);
        }

        if (pc.transceivers[sdpMLineIndex].rtpReceiver) {
          pc.transceivers[sdpMLineIndex].rtpReceiver.setTransport(pc.transceivers[0].dtlsTransport);
        }
      }

      if (description.type === 'offer' && !rejected) {
        transceiver = pc.transceivers[sdpMLineIndex] || pc._createTransceiver(kind);
        transceiver.mid = mid;

        if (!transceiver.iceGatherer) {
          transceiver.iceGatherer = pc._createIceGatherer(sdpMLineIndex, usingBundle);
        }

        if (cands.length && transceiver.iceTransport.state === 'new') {
          if (isComplete && (!usingBundle || sdpMLineIndex === 0)) {
            transceiver.iceTransport.setRemoteCandidates(cands);
          } else {
            cands.forEach(function (candidate) {
              maybeAddCandidate(transceiver.iceTransport, candidate);
            });
          }
        }

        localCapabilities = window.RTCRtpReceiver.getCapabilities(kind); // filter RTX until additional stuff needed for RTX is implemented
        // in adapter.js

        if (edgeVersion < 15019) {
          localCapabilities.codecs = localCapabilities.codecs.filter(function (codec) {
            return codec.name !== 'rtx';
          });
        }

        sendEncodingParameters = transceiver.sendEncodingParameters || [{
          ssrc: (2 * sdpMLineIndex + 2) * 1001
        }]; // TODO: rewrite to use http://w3c.github.io/webrtc-pc/#set-associated-remote-streams

        var isNewTrack = false;

        if (direction === 'sendrecv' || direction === 'sendonly') {
          isNewTrack = !transceiver.rtpReceiver;
          rtpReceiver = transceiver.rtpReceiver || new window.RTCRtpReceiver(transceiver.dtlsTransport, kind);

          if (isNewTrack) {
            var stream;
            track = rtpReceiver.track; // FIXME: does not work with Plan B.

            if (remoteMsid && remoteMsid.stream === '-') {// no-op. a stream id of '-' means: no associated stream.
            } else if (remoteMsid) {
              if (!streams[remoteMsid.stream]) {
                streams[remoteMsid.stream] = new window.MediaStream();
                Object.defineProperty(streams[remoteMsid.stream], 'id', {
                  get: function () {
                    return remoteMsid.stream;
                  }
                });
              }

              Object.defineProperty(track, 'id', {
                get: function () {
                  return remoteMsid.track;
                }
              });
              stream = streams[remoteMsid.stream];
            } else {
              if (!streams.default) {
                streams.default = new window.MediaStream();
              }

              stream = streams.default;
            }

            if (stream) {
              addTrackToStreamAndFireEvent(track, stream);
              transceiver.associatedRemoteMediaStreams.push(stream);
            }

            receiverList.push([track, rtpReceiver, stream]);
          }
        } else if (transceiver.rtpReceiver && transceiver.rtpReceiver.track) {
          transceiver.associatedRemoteMediaStreams.forEach(function (s) {
            var nativeTrack = s.getTracks().find(function (t) {
              return t.id === transceiver.rtpReceiver.track.id;
            });

            if (nativeTrack) {
              removeTrackFromStreamAndFireEvent(nativeTrack, s);
            }
          });
          transceiver.associatedRemoteMediaStreams = [];
        }

        transceiver.localCapabilities = localCapabilities;
        transceiver.remoteCapabilities = remoteCapabilities;
        transceiver.rtpReceiver = rtpReceiver;
        transceiver.rtcpParameters = rtcpParameters;
        transceiver.sendEncodingParameters = sendEncodingParameters;
        transceiver.recvEncodingParameters = recvEncodingParameters; // Start the RTCRtpReceiver now. The RTPSender is started in
        // setLocalDescription.

        pc._transceive(pc.transceivers[sdpMLineIndex], false, isNewTrack);
      } else if (description.type === 'answer' && !rejected) {
        transceiver = pc.transceivers[sdpMLineIndex];
        iceGatherer = transceiver.iceGatherer;
        iceTransport = transceiver.iceTransport;
        dtlsTransport = transceiver.dtlsTransport;
        rtpReceiver = transceiver.rtpReceiver;
        sendEncodingParameters = transceiver.sendEncodingParameters;
        localCapabilities = transceiver.localCapabilities;
        pc.transceivers[sdpMLineIndex].recvEncodingParameters = recvEncodingParameters;
        pc.transceivers[sdpMLineIndex].remoteCapabilities = remoteCapabilities;
        pc.transceivers[sdpMLineIndex].rtcpParameters = rtcpParameters;

        if (cands.length && iceTransport.state === 'new') {
          if ((isIceLite || isComplete) && (!usingBundle || sdpMLineIndex === 0)) {
            iceTransport.setRemoteCandidates(cands);
          } else {
            cands.forEach(function (candidate) {
              maybeAddCandidate(transceiver.iceTransport, candidate);
            });
          }
        }

        if (!usingBundle || sdpMLineIndex === 0) {
          if (iceTransport.state === 'new') {
            iceTransport.start(iceGatherer, remoteIceParameters, 'controlling');
          }

          if (dtlsTransport.state === 'new') {
            dtlsTransport.start(remoteDtlsParameters);
          }
        } // If the offer contained RTX but the answer did not,
        // remove RTX from sendEncodingParameters.


        var commonCapabilities = getCommonCapabilities(transceiver.localCapabilities, transceiver.remoteCapabilities);
        var hasRtx = commonCapabilities.codecs.filter(function (c) {
          return c.name.toLowerCase() === 'rtx';
        }).length;

        if (!hasRtx && transceiver.sendEncodingParameters[0].rtx) {
          delete transceiver.sendEncodingParameters[0].rtx;
        }

        pc._transceive(transceiver, direction === 'sendrecv' || direction === 'recvonly', direction === 'sendrecv' || direction === 'sendonly'); // TODO: rewrite to use http://w3c.github.io/webrtc-pc/#set-associated-remote-streams


        if (rtpReceiver && (direction === 'sendrecv' || direction === 'sendonly')) {
          track = rtpReceiver.track;

          if (remoteMsid) {
            if (!streams[remoteMsid.stream]) {
              streams[remoteMsid.stream] = new window.MediaStream();
            }

            addTrackToStreamAndFireEvent(track, streams[remoteMsid.stream]);
            receiverList.push([track, rtpReceiver, streams[remoteMsid.stream]]);
          } else {
            if (!streams.default) {
              streams.default = new window.MediaStream();
            }

            addTrackToStreamAndFireEvent(track, streams.default);
            receiverList.push([track, rtpReceiver, streams.default]);
          }
        } else {
          // FIXME: actually the receiver should be created later.
          delete transceiver.rtpReceiver;
        }
      }
    });

    if (pc._dtlsRole === undefined) {
      pc._dtlsRole = description.type === 'offer' ? 'active' : 'passive';
    }

    pc._remoteDescription = {
      type: description.type,
      sdp: description.sdp
    };

    if (description.type === 'offer') {
      pc._updateSignalingState('have-remote-offer');
    } else {
      pc._updateSignalingState('stable');
    }

    Object.keys(streams).forEach(function (sid) {
      var stream = streams[sid];

      if (stream.getTracks().length) {
        if (pc.remoteStreams.indexOf(stream) === -1) {
          pc.remoteStreams.push(stream);
          var event = new Event('addstream');
          event.stream = stream;
          window.setTimeout(function () {
            pc._dispatchEvent('addstream', event);
          });
        }

        receiverList.forEach(function (item) {
          var track = item[0];
          var receiver = item[1];

          if (stream.id !== item[2].id) {
            return;
          }

          fireAddTrack(pc, track, receiver, [stream]);
        });
      }
    });
    receiverList.forEach(function (item) {
      if (item[2]) {
        return;
      }

      fireAddTrack(pc, item[0], item[1], []);
    }); // check whether addIceCandidate({}) was called within four seconds after
    // setRemoteDescription.

    window.setTimeout(function () {
      if (!(pc && pc.transceivers)) {
        return;
      }

      pc.transceivers.forEach(function (transceiver) {
        if (transceiver.iceTransport && transceiver.iceTransport.state === 'new' && transceiver.iceTransport.getRemoteCandidates().length > 0) {
          console.warn('Timeout for addRemoteCandidate. Consider sending ' + 'an end-of-candidates notification');
          transceiver.iceTransport.addRemoteCandidate({});
        }
      });
    }, 4000);
    return Promise.resolve();
  };

  RTCPeerConnection.prototype.close = function () {
    this.transceivers.forEach(function (transceiver) {
      /* not yet
      if (transceiver.iceGatherer) {
        transceiver.iceGatherer.close();
      }
      */
      if (transceiver.iceTransport) {
        transceiver.iceTransport.stop();
      }

      if (transceiver.dtlsTransport) {
        transceiver.dtlsTransport.stop();
      }

      if (transceiver.rtpSender) {
        transceiver.rtpSender.stop();
      }

      if (transceiver.rtpReceiver) {
        transceiver.rtpReceiver.stop();
      }
    }); // FIXME: clean up tracks, local streams, remote streams, etc

    this._isClosed = true;

    this._updateSignalingState('closed');
  }; // Update the signaling state.


  RTCPeerConnection.prototype._updateSignalingState = function (newState) {
    this.signalingState = newState;
    var event = new Event('signalingstatechange');

    this._dispatchEvent('signalingstatechange', event);
  }; // Determine whether to fire the negotiationneeded event.


  RTCPeerConnection.prototype._maybeFireNegotiationNeeded = function () {
    var pc = this;

    if (this.signalingState !== 'stable' || this.needNegotiation === true) {
      return;
    }

    this.needNegotiation = true;
    window.setTimeout(function () {
      if (pc.needNegotiation) {
        pc.needNegotiation = false;
        var event = new Event('negotiationneeded');

        pc._dispatchEvent('negotiationneeded', event);
      }
    }, 0);
  }; // Update the ice connection state.


  RTCPeerConnection.prototype._updateIceConnectionState = function () {
    var newState;
    var states = {
      'new': 0,
      closed: 0,
      checking: 0,
      connected: 0,
      completed: 0,
      disconnected: 0,
      failed: 0
    };
    this.transceivers.forEach(function (transceiver) {
      if (transceiver.iceTransport && !transceiver.rejected) {
        states[transceiver.iceTransport.state]++;
      }
    });
    newState = 'new';

    if (states.failed > 0) {
      newState = 'failed';
    } else if (states.checking > 0) {
      newState = 'checking';
    } else if (states.disconnected > 0) {
      newState = 'disconnected';
    } else if (states.new > 0) {
      newState = 'new';
    } else if (states.connected > 0) {
      newState = 'connected';
    } else if (states.completed > 0) {
      newState = 'completed';
    }

    if (newState !== this.iceConnectionState) {
      this.iceConnectionState = newState;
      var event = new Event('iceconnectionstatechange');

      this._dispatchEvent('iceconnectionstatechange', event);
    }
  }; // Update the connection state.


  RTCPeerConnection.prototype._updateConnectionState = function () {
    var newState;
    var states = {
      'new': 0,
      closed: 0,
      connecting: 0,
      connected: 0,
      completed: 0,
      disconnected: 0,
      failed: 0
    };
    this.transceivers.forEach(function (transceiver) {
      if (transceiver.iceTransport && transceiver.dtlsTransport && !transceiver.rejected) {
        states[transceiver.iceTransport.state]++;
        states[transceiver.dtlsTransport.state]++;
      }
    }); // ICETransport.completed and connected are the same for this purpose.

    states.connected += states.completed;
    newState = 'new';

    if (states.failed > 0) {
      newState = 'failed';
    } else if (states.connecting > 0) {
      newState = 'connecting';
    } else if (states.disconnected > 0) {
      newState = 'disconnected';
    } else if (states.new > 0) {
      newState = 'new';
    } else if (states.connected > 0) {
      newState = 'connected';
    }

    if (newState !== this.connectionState) {
      this.connectionState = newState;
      var event = new Event('connectionstatechange');

      this._dispatchEvent('connectionstatechange', event);
    }
  };

  RTCPeerConnection.prototype.createOffer = function () {
    var pc = this;

    if (pc._isClosed) {
      return Promise.reject(makeError('InvalidStateError', 'Can not call createOffer after close'));
    }

    var numAudioTracks = pc.transceivers.filter(function (t) {
      return t.kind === 'audio';
    }).length;
    var numVideoTracks = pc.transceivers.filter(function (t) {
      return t.kind === 'video';
    }).length; // Determine number of audio and video tracks we need to send/recv.

    var offerOptions = arguments[0];

    if (offerOptions) {
      // Reject Chrome legacy constraints.
      if (offerOptions.mandatory || offerOptions.optional) {
        throw new TypeError('Legacy mandatory/optional constraints not supported.');
      }

      if (offerOptions.offerToReceiveAudio !== undefined) {
        if (offerOptions.offerToReceiveAudio === true) {
          numAudioTracks = 1;
        } else if (offerOptions.offerToReceiveAudio === false) {
          numAudioTracks = 0;
        } else {
          numAudioTracks = offerOptions.offerToReceiveAudio;
        }
      }

      if (offerOptions.offerToReceiveVideo !== undefined) {
        if (offerOptions.offerToReceiveVideo === true) {
          numVideoTracks = 1;
        } else if (offerOptions.offerToReceiveVideo === false) {
          numVideoTracks = 0;
        } else {
          numVideoTracks = offerOptions.offerToReceiveVideo;
        }
      }
    }

    pc.transceivers.forEach(function (transceiver) {
      if (transceiver.kind === 'audio') {
        numAudioTracks--;

        if (numAudioTracks < 0) {
          transceiver.wantReceive = false;
        }
      } else if (transceiver.kind === 'video') {
        numVideoTracks--;

        if (numVideoTracks < 0) {
          transceiver.wantReceive = false;
        }
      }
    }); // Create M-lines for recvonly streams.

    while (numAudioTracks > 0 || numVideoTracks > 0) {
      if (numAudioTracks > 0) {
        pc._createTransceiver('audio');

        numAudioTracks--;
      }

      if (numVideoTracks > 0) {
        pc._createTransceiver('video');

        numVideoTracks--;
      }
    }

    var sdp = SDPUtils.writeSessionBoilerplate(pc._sdpSessionId, pc._sdpSessionVersion++);
    pc.transceivers.forEach(function (transceiver, sdpMLineIndex) {
      // For each track, create an ice gatherer, ice transport,
      // dtls transport, potentially rtpsender and rtpreceiver.
      var track = transceiver.track;
      var kind = transceiver.kind;
      var mid = transceiver.mid || SDPUtils.generateIdentifier();
      transceiver.mid = mid;

      if (!transceiver.iceGatherer) {
        transceiver.iceGatherer = pc._createIceGatherer(sdpMLineIndex, pc.usingBundle);
      }

      var localCapabilities = window.RTCRtpSender.getCapabilities(kind); // filter RTX until additional stuff needed for RTX is implemented
      // in adapter.js

      if (edgeVersion < 15019) {
        localCapabilities.codecs = localCapabilities.codecs.filter(function (codec) {
          return codec.name !== 'rtx';
        });
      }

      localCapabilities.codecs.forEach(function (codec) {
        // work around https://bugs.chromium.org/p/webrtc/issues/detail?id=6552
        // by adding level-asymmetry-allowed=1
        if (codec.name === 'H264' && codec.parameters['level-asymmetry-allowed'] === undefined) {
          codec.parameters['level-asymmetry-allowed'] = '1';
        } // for subsequent offers, we might have to re-use the payload
        // type of the last offer.


        if (transceiver.remoteCapabilities && transceiver.remoteCapabilities.codecs) {
          transceiver.remoteCapabilities.codecs.forEach(function (remoteCodec) {
            if (codec.name.toLowerCase() === remoteCodec.name.toLowerCase() && codec.clockRate === remoteCodec.clockRate) {
              codec.preferredPayloadType = remoteCodec.payloadType;
            }
          });
        }
      });
      localCapabilities.headerExtensions.forEach(function (hdrExt) {
        var remoteExtensions = transceiver.remoteCapabilities && transceiver.remoteCapabilities.headerExtensions || [];
        remoteExtensions.forEach(function (rHdrExt) {
          if (hdrExt.uri === rHdrExt.uri) {
            hdrExt.id = rHdrExt.id;
          }
        });
      }); // generate an ssrc now, to be used later in rtpSender.send

      var sendEncodingParameters = transceiver.sendEncodingParameters || [{
        ssrc: (2 * sdpMLineIndex + 1) * 1001
      }];

      if (track) {
        // add RTX
        if (edgeVersion >= 15019 && kind === 'video' && !sendEncodingParameters[0].rtx) {
          sendEncodingParameters[0].rtx = {
            ssrc: sendEncodingParameters[0].ssrc + 1
          };
        }
      }

      if (transceiver.wantReceive) {
        transceiver.rtpReceiver = new window.RTCRtpReceiver(transceiver.dtlsTransport, kind);
      }

      transceiver.localCapabilities = localCapabilities;
      transceiver.sendEncodingParameters = sendEncodingParameters;
    }); // always offer BUNDLE and dispose on return if not supported.

    if (pc._config.bundlePolicy !== 'max-compat') {
      sdp += 'a=group:BUNDLE ' + pc.transceivers.map(function (t) {
        return t.mid;
      }).join(' ') + '\r\n';
    }

    sdp += 'a=ice-options:trickle\r\n';
    pc.transceivers.forEach(function (transceiver, sdpMLineIndex) {
      sdp += writeMediaSection(transceiver, transceiver.localCapabilities, 'offer', transceiver.stream, pc._dtlsRole);
      sdp += 'a=rtcp-rsize\r\n';

      if (transceiver.iceGatherer && pc.iceGatheringState !== 'new' && (sdpMLineIndex === 0 || !pc.usingBundle)) {
        transceiver.iceGatherer.getLocalCandidates().forEach(function (cand) {
          cand.component = 1;
          sdp += 'a=' + SDPUtils.writeCandidate(cand) + '\r\n';
        });

        if (transceiver.iceGatherer.state === 'completed') {
          sdp += 'a=end-of-candidates\r\n';
        }
      }
    });
    var desc = new window.RTCSessionDescription({
      type: 'offer',
      sdp: sdp
    });
    return Promise.resolve(desc);
  };

  RTCPeerConnection.prototype.createAnswer = function () {
    var pc = this;

    if (pc._isClosed) {
      return Promise.reject(makeError('InvalidStateError', 'Can not call createAnswer after close'));
    }

    if (!(pc.signalingState === 'have-remote-offer' || pc.signalingState === 'have-local-pranswer')) {
      return Promise.reject(makeError('InvalidStateError', 'Can not call createAnswer in signalingState ' + pc.signalingState));
    }

    var sdp = SDPUtils.writeSessionBoilerplate(pc._sdpSessionId, pc._sdpSessionVersion++);

    if (pc.usingBundle) {
      sdp += 'a=group:BUNDLE ' + pc.transceivers.map(function (t) {
        return t.mid;
      }).join(' ') + '\r\n';
    }

    sdp += 'a=ice-options:trickle\r\n';
    var mediaSectionsInOffer = SDPUtils.getMediaSections(pc._remoteDescription.sdp).length;
    pc.transceivers.forEach(function (transceiver, sdpMLineIndex) {
      if (sdpMLineIndex + 1 > mediaSectionsInOffer) {
        return;
      }

      if (transceiver.rejected) {
        if (transceiver.kind === 'application') {
          if (transceiver.protocol === 'DTLS/SCTP') {
            // legacy fmt
            sdp += 'm=application 0 DTLS/SCTP 5000\r\n';
          } else {
            sdp += 'm=application 0 ' + transceiver.protocol + ' webrtc-datachannel\r\n';
          }
        } else if (transceiver.kind === 'audio') {
          sdp += 'm=audio 0 UDP/TLS/RTP/SAVPF 0\r\n' + 'a=rtpmap:0 PCMU/8000\r\n';
        } else if (transceiver.kind === 'video') {
          sdp += 'm=video 0 UDP/TLS/RTP/SAVPF 120\r\n' + 'a=rtpmap:120 VP8/90000\r\n';
        }

        sdp += 'c=IN IP4 0.0.0.0\r\n' + 'a=inactive\r\n' + 'a=mid:' + transceiver.mid + '\r\n';
        return;
      } // FIXME: look at direction.


      if (transceiver.stream) {
        var localTrack;

        if (transceiver.kind === 'audio') {
          localTrack = transceiver.stream.getAudioTracks()[0];
        } else if (transceiver.kind === 'video') {
          localTrack = transceiver.stream.getVideoTracks()[0];
        }

        if (localTrack) {
          // add RTX
          if (edgeVersion >= 15019 && transceiver.kind === 'video' && !transceiver.sendEncodingParameters[0].rtx) {
            transceiver.sendEncodingParameters[0].rtx = {
              ssrc: transceiver.sendEncodingParameters[0].ssrc + 1
            };
          }
        }
      } // Calculate intersection of capabilities.


      var commonCapabilities = getCommonCapabilities(transceiver.localCapabilities, transceiver.remoteCapabilities);
      var hasRtx = commonCapabilities.codecs.filter(function (c) {
        return c.name.toLowerCase() === 'rtx';
      }).length;

      if (!hasRtx && transceiver.sendEncodingParameters[0].rtx) {
        delete transceiver.sendEncodingParameters[0].rtx;
      }

      sdp += writeMediaSection(transceiver, commonCapabilities, 'answer', transceiver.stream, pc._dtlsRole);

      if (transceiver.rtcpParameters && transceiver.rtcpParameters.reducedSize) {
        sdp += 'a=rtcp-rsize\r\n';
      }
    });
    var desc = new window.RTCSessionDescription({
      type: 'answer',
      sdp: sdp
    });
    return Promise.resolve(desc);
  };

  RTCPeerConnection.prototype.addIceCandidate = function (candidate) {
    var pc = this;
    var sections;

    if (candidate && !(candidate.sdpMLineIndex !== undefined || candidate.sdpMid)) {
      return Promise.reject(new TypeError('sdpMLineIndex or sdpMid required'));
    } // TODO: needs to go into ops queue.


    return new Promise(function (resolve, reject) {
      if (!pc._remoteDescription) {
        return reject(makeError('InvalidStateError', 'Can not add ICE candidate without a remote description'));
      } else if (!candidate || candidate.candidate === '') {
        for (var j = 0; j < pc.transceivers.length; j++) {
          if (pc.transceivers[j].rejected) {
            continue;
          }

          pc.transceivers[j].iceTransport.addRemoteCandidate({});
          sections = SDPUtils.getMediaSections(pc._remoteDescription.sdp);
          sections[j] += 'a=end-of-candidates\r\n';
          pc._remoteDescription.sdp = SDPUtils.getDescription(pc._remoteDescription.sdp) + sections.join('');

          if (pc.usingBundle) {
            break;
          }
        }
      } else {
        var sdpMLineIndex = candidate.sdpMLineIndex;

        if (candidate.sdpMid) {
          for (var i = 0; i < pc.transceivers.length; i++) {
            if (pc.transceivers[i].mid === candidate.sdpMid) {
              sdpMLineIndex = i;
              break;
            }
          }
        }

        var transceiver = pc.transceivers[sdpMLineIndex];

        if (transceiver) {
          if (transceiver.rejected) {
            return resolve();
          }

          var cand = Object.keys(candidate.candidate).length > 0 ? SDPUtils.parseCandidate(candidate.candidate) : {}; // Ignore Chrome's invalid candidates since Edge does not like them.

          if (cand.protocol === 'tcp' && (cand.port === 0 || cand.port === 9)) {
            return resolve();
          } // Ignore RTCP candidates, we assume RTCP-MUX.


          if (cand.component && cand.component !== 1) {
            return resolve();
          } // when using bundle, avoid adding candidates to the wrong
          // ice transport. And avoid adding candidates added in the SDP.


          if (sdpMLineIndex === 0 || sdpMLineIndex > 0 && transceiver.iceTransport !== pc.transceivers[0].iceTransport) {
            if (!maybeAddCandidate(transceiver.iceTransport, cand)) {
              return reject(makeError('OperationError', 'Can not add ICE candidate'));
            }
          } // update the remoteDescription.


          var candidateString = candidate.candidate.trim();

          if (candidateString.indexOf('a=') === 0) {
            candidateString = candidateString.substr(2);
          }

          sections = SDPUtils.getMediaSections(pc._remoteDescription.sdp);
          sections[sdpMLineIndex] += 'a=' + (cand.type ? candidateString : 'end-of-candidates') + '\r\n';
          pc._remoteDescription.sdp = SDPUtils.getDescription(pc._remoteDescription.sdp) + sections.join('');
        } else {
          return reject(makeError('OperationError', 'Can not add ICE candidate'));
        }
      }

      resolve();
    });
  };

  RTCPeerConnection.prototype.getStats = function (selector) {
    if (selector && selector instanceof window.MediaStreamTrack) {
      var senderOrReceiver = null;
      this.transceivers.forEach(function (transceiver) {
        if (transceiver.rtpSender && transceiver.rtpSender.track === selector) {
          senderOrReceiver = transceiver.rtpSender;
        } else if (transceiver.rtpReceiver && transceiver.rtpReceiver.track === selector) {
          senderOrReceiver = transceiver.rtpReceiver;
        }
      });

      if (!senderOrReceiver) {
        throw makeError('InvalidAccessError', 'Invalid selector.');
      }

      return senderOrReceiver.getStats();
    }

    var promises = [];
    this.transceivers.forEach(function (transceiver) {
      ['rtpSender', 'rtpReceiver', 'iceGatherer', 'iceTransport', 'dtlsTransport'].forEach(function (method) {
        if (transceiver[method]) {
          promises.push(transceiver[method].getStats());
        }
      });
    });
    return Promise.all(promises).then(function (allStats) {
      var results = new Map();
      allStats.forEach(function (stats) {
        stats.forEach(function (stat) {
          results.set(stat.id, stat);
        });
      });
      return results;
    });
  }; // fix low-level stat names and return Map instead of object.


  var ortcObjects = ['RTCRtpSender', 'RTCRtpReceiver', 'RTCIceGatherer', 'RTCIceTransport', 'RTCDtlsTransport'];
  ortcObjects.forEach(function (ortcObjectName) {
    var obj = window[ortcObjectName];

    if (obj && obj.prototype && obj.prototype.getStats) {
      var nativeGetstats = obj.prototype.getStats;

      obj.prototype.getStats = function () {
        return nativeGetstats.apply(this).then(function (nativeStats) {
          var mapStats = new Map();
          Object.keys(nativeStats).forEach(function (id) {
            nativeStats[id].type = fixStatsType(nativeStats[id]);
            mapStats.set(id, nativeStats[id]);
          });
          return mapStats;
        });
      };
    }
  }); // legacy callback shims. Should be moved to adapter.js some days.

  var methods = ['createOffer', 'createAnswer'];
  methods.forEach(function (method) {
    var nativeMethod = RTCPeerConnection.prototype[method];

    RTCPeerConnection.prototype[method] = function () {
      var args = arguments;

      if (typeof args[0] === 'function' || typeof args[1] === 'function') {
        // legacy
        return nativeMethod.apply(this, [arguments[2]]).then(function (description) {
          if (typeof args[0] === 'function') {
            args[0].apply(null, [description]);
          }
        }, function (error) {
          if (typeof args[1] === 'function') {
            args[1].apply(null, [error]);
          }
        });
      }

      return nativeMethod.apply(this, arguments);
    };
  });
  methods = ['setLocalDescription', 'setRemoteDescription', 'addIceCandidate'];
  methods.forEach(function (method) {
    var nativeMethod = RTCPeerConnection.prototype[method];

    RTCPeerConnection.prototype[method] = function () {
      var args = arguments;

      if (typeof args[1] === 'function' || typeof args[2] === 'function') {
        // legacy
        return nativeMethod.apply(this, arguments).then(function () {
          if (typeof args[1] === 'function') {
            args[1].apply(null);
          }
        }, function (error) {
          if (typeof args[2] === 'function') {
            args[2].apply(null, [error]);
          }
        });
      }

      return nativeMethod.apply(this, arguments);
    };
  }); // getStats is special. It doesn't have a spec legacy method yet we support
  // getStats(something, cb) without error callbacks.

  ['getStats'].forEach(function (method) {
    var nativeMethod = RTCPeerConnection.prototype[method];

    RTCPeerConnection.prototype[method] = function () {
      var args = arguments;

      if (typeof args[1] === 'function') {
        return nativeMethod.apply(this, arguments).then(function () {
          if (typeof args[1] === 'function') {
            args[1].apply(null);
          }
        });
      }

      return nativeMethod.apply(this, arguments);
    };
  });
  return RTCPeerConnection;
};

}),
/* 52 */
(function(module, __webpack_exports__, __webpack_require__) {

"use strict";
/* harmony export (immutable) */ __webpack_exports__["a"] = shimGetUserMedia;
/*
 *  Copyright (c) 2016 The WebRTC project authors. All Rights Reserved.
 *
 *  Use of this source code is governed by a BSD-style license
 *  that can be found in the LICENSE file in the root of the source
 *  tree.
 */

/* eslint-env node */


function shimGetUserMedia(window) {
  const navigator = window && window.navigator;

  const shimError_ = function (e) {
    return {
      name: {
        PermissionDeniedError: 'NotAllowedError'
      }[e.name] || e.name,
      message: e.message,
      constraint: e.constraint,

      toString() {
        return this.name;
      }

    };
  }; // getUserMedia error shim.


  const origGetUserMedia = navigator.mediaDevices.getUserMedia.bind(navigator.mediaDevices);

  navigator.mediaDevices.getUserMedia = function (c) {
    return origGetUserMedia(c).catch(e => Promise.reject(shimError_(e)));
  };
}

}),
/* 53 */
(function(module, __webpack_exports__, __webpack_require__) {

"use strict";
/* harmony export (immutable) */ __webpack_exports__["a"] = shimGetDisplayMedia;
/*
 *  Copyright (c) 2018 The adapter.js project authors. All Rights Reserved.
 *
 *  Use of this source code is governed by a BSD-style license
 *  that can be found in the LICENSE file in the root of the source
 *  tree.
 */

/* eslint-env node */


function shimGetDisplayMedia(window) {
  if (!('getDisplayMedia' in window.navigator)) {
    return;
  }

  if (!window.navigator.mediaDevices) {
    return;
  }

  if (window.navigator.mediaDevices && 'getDisplayMedia' in window.navigator.mediaDevices) {
    return;
  }

  window.navigator.mediaDevices.getDisplayMedia = window.navigator.getDisplayMedia.bind(window.navigator.mediaDevices);
}

}),
/* 54 */
(function(module, __webpack_exports__, __webpack_require__) {

"use strict";
Object.defineProperty(__webpack_exports__, "__esModule", { value: true });
/* harmony export (immutable) */ __webpack_exports__["shimOnTrack"] = shimOnTrack;
/* harmony export (immutable) */ __webpack_exports__["shimPeerConnection"] = shimPeerConnection;
/* harmony export (immutable) */ __webpack_exports__["shimSenderGetStats"] = shimSenderGetStats;
/* harmony export (immutable) */ __webpack_exports__["shimReceiverGetStats"] = shimReceiverGetStats;
/* harmony export (immutable) */ __webpack_exports__["shimRemoveStream"] = shimRemoveStream;
/* harmony export (immutable) */ __webpack_exports__["shimRTCDataChannel"] = shimRTCDataChannel;
/* harmony import */ var __WEBPACK_IMPORTED_MODULE_0__utils__ = __webpack_require__(4);
/* harmony import */ var __WEBPACK_IMPORTED_MODULE_1__getusermedia__ = __webpack_require__(55);
/* harmony reexport (binding) */ __webpack_require__.d(__webpack_exports__, "shimGetUserMedia", function() { return __WEBPACK_IMPORTED_MODULE_1__getusermedia__["a"]; });
/* harmony import */ var __WEBPACK_IMPORTED_MODULE_2__getdisplaymedia__ = __webpack_require__(56);
/* harmony reexport (binding) */ __webpack_require__.d(__webpack_exports__, "shimGetDisplayMedia", function() { return __WEBPACK_IMPORTED_MODULE_2__getdisplaymedia__["a"]; });
/*
 *  Copyright (c) 2016 The WebRTC project authors. All Rights Reserved.
 *
 *  Use of this source code is governed by a BSD-style license
 *  that can be found in the LICENSE file in the root of the source
 *  tree.
 */

/* eslint-env node */





function shimOnTrack(window) {
  if (typeof window === 'object' && window.RTCTrackEvent && 'receiver' in window.RTCTrackEvent.prototype && !('transceiver' in window.RTCTrackEvent.prototype)) {
    Object.defineProperty(window.RTCTrackEvent.prototype, 'transceiver', {
      get() {
        return {
          receiver: this.receiver
        };
      }

    });
  }
}
function shimPeerConnection(window) {
  const browserDetails = __WEBPACK_IMPORTED_MODULE_0__utils__["b" /* detectBrowser */](window);

  if (typeof window !== 'object' || !(window.RTCPeerConnection || window.mozRTCPeerConnection)) {
    return; // probably media.peerconnection.enabled=false in about:config
  }

  if (!window.RTCPeerConnection && window.mozRTCPeerConnection) {
    // very basic support for old versions.
    window.RTCPeerConnection = window.mozRTCPeerConnection;
  } // shim away need for obsolete RTCIceCandidate/RTCSessionDescription.


  ['setLocalDescription', 'setRemoteDescription', 'addIceCandidate'].forEach(function (method) {
    const nativeMethod = window.RTCPeerConnection.prototype[method];

    window.RTCPeerConnection.prototype[method] = function () {
      arguments[0] = new (method === 'addIceCandidate' ? window.RTCIceCandidate : window.RTCSessionDescription)(arguments[0]);
      return nativeMethod.apply(this, arguments);
    };
  }); // support for addIceCandidate(null or undefined)

  const nativeAddIceCandidate = window.RTCPeerConnection.prototype.addIceCandidate;

  window.RTCPeerConnection.prototype.addIceCandidate = function () {
    if (!arguments[0]) {
      if (arguments[1]) {
        arguments[1].apply(null);
      }

      return Promise.resolve();
    }

    return nativeAddIceCandidate.apply(this, arguments);
  };

  const modernStatsTypes = {
    inboundrtp: 'inbound-rtp',
    outboundrtp: 'outbound-rtp',
    candidatepair: 'candidate-pair',
    localcandidate: 'local-candidate',
    remotecandidate: 'remote-candidate'
  };
  const nativeGetStats = window.RTCPeerConnection.prototype.getStats;

  window.RTCPeerConnection.prototype.getStats = function (selector, onSucc, onErr) {
    return nativeGetStats.apply(this, [selector || null]).then(stats => {
      if (browserDetails.version < 53 && !onSucc) {
        // Shim only promise getStats with spec-hyphens in type names
        // Leave callback version alone; misc old uses of forEach before Map
        try {
          stats.forEach(stat => {
            stat.type = modernStatsTypes[stat.type] || stat.type;
          });
        } catch (e) {
          if (e.name !== 'TypeError') {
            throw e;
          } // Avoid TypeError: "type" is read-only, in old versions. 34-43ish


          stats.forEach((stat, i) => {
            stats.set(i, Object.assign({}, stat, {
              type: modernStatsTypes[stat.type] || stat.type
            }));
          });
        }
      }

      return stats;
    }).then(onSucc, onErr);
  };
}
function shimSenderGetStats(window) {
  if (!(typeof window === 'object' && window.RTCPeerConnection && window.RTCRtpSender)) {
    return;
  }

  if (window.RTCRtpSender && 'getStats' in window.RTCRtpSender.prototype) {
    return;
  }

  const origGetSenders = window.RTCPeerConnection.prototype.getSenders;

  if (origGetSenders) {
    window.RTCPeerConnection.prototype.getSenders = function () {
      const senders = origGetSenders.apply(this, []);
      senders.forEach(sender => sender._pc = this);
      return senders;
    };
  }

  const origAddTrack = window.RTCPeerConnection.prototype.addTrack;

  if (origAddTrack) {
    window.RTCPeerConnection.prototype.addTrack = function () {
      const sender = origAddTrack.apply(this, arguments);
      sender._pc = this;
      return sender;
    };
  }

  window.RTCRtpSender.prototype.getStats = function () {
    return this.track ? this._pc.getStats(this.track) : Promise.resolve(new Map());
  };
}
function shimReceiverGetStats(window) {
  if (!(typeof window === 'object' && window.RTCPeerConnection && window.RTCRtpSender)) {
    return;
  }

  if (window.RTCRtpSender && 'getStats' in window.RTCRtpReceiver.prototype) {
    return;
  }

  const origGetReceivers = window.RTCPeerConnection.prototype.getReceivers;

  if (origGetReceivers) {
    window.RTCPeerConnection.prototype.getReceivers = function () {
      const receivers = origGetReceivers.apply(this, []);
      receivers.forEach(receiver => receiver._pc = this);
      return receivers;
    };
  }

  __WEBPACK_IMPORTED_MODULE_0__utils__["g" /* wrapPeerConnectionEvent */](window, 'track', e => {
    e.receiver._pc = e.srcElement;
    return e;
  });

  window.RTCRtpReceiver.prototype.getStats = function () {
    return this._pc.getStats(this.track);
  };
}
function shimRemoveStream(window) {
  if (!window.RTCPeerConnection || 'removeStream' in window.RTCPeerConnection.prototype) {
    return;
  }

  window.RTCPeerConnection.prototype.removeStream = function (stream) {
    __WEBPACK_IMPORTED_MODULE_0__utils__["a" /* deprecated */]('removeStream', 'removeTrack');
    this.getSenders().forEach(sender => {
      if (sender.track && stream.getTracks().includes(sender.track)) {
        this.removeTrack(sender);
      }
    });
  };
}
function shimRTCDataChannel(window) {
  // rename DataChannel to RTCDataChannel (native fix in FF60):
  // https://bugzilla.mozilla.org/show_bug.cgi?id=1173851
  if (window.DataChannel && !window.RTCDataChannel) {
    window.RTCDataChannel = window.DataChannel;
  }
}

}),
/* 55 */
(function(module, __webpack_exports__, __webpack_require__) {

"use strict";
/* harmony export (immutable) */ __webpack_exports__["a"] = shimGetUserMedia;
/* harmony import */ var __WEBPACK_IMPORTED_MODULE_0__utils__ = __webpack_require__(4);
/*
 *  Copyright (c) 2016 The WebRTC project authors. All Rights Reserved.
 *
 *  Use of this source code is governed by a BSD-style license
 *  that can be found in the LICENSE file in the root of the source
 *  tree.
 */

/* eslint-env node */



function shimGetUserMedia(window) {
  const browserDetails = __WEBPACK_IMPORTED_MODULE_0__utils__["b" /* detectBrowser */](window);
  const navigator = window && window.navigator;
  const MediaStreamTrack = window && window.MediaStreamTrack;

  navigator.getUserMedia = function (constraints, onSuccess, onError) {
    // Replace Firefox 44+'s deprecation warning with unprefixed version.
    __WEBPACK_IMPORTED_MODULE_0__utils__["a" /* deprecated */]('navigator.getUserMedia', 'navigator.mediaDevices.getUserMedia');
    navigator.mediaDevices.getUserMedia(constraints).then(onSuccess, onError);
  };

  if (!(browserDetails.version > 55 && 'autoGainControl' in navigator.mediaDevices.getSupportedConstraints())) {
    const remap = function (obj, a, b) {
      if (a in obj && !(b in obj)) {
        obj[b] = obj[a];
        delete obj[a];
      }
    };

    const nativeGetUserMedia = navigator.mediaDevices.getUserMedia.bind(navigator.mediaDevices);

    navigator.mediaDevices.getUserMedia = function (c) {
      if (typeof c === 'object' && typeof c.audio === 'object') {
        c = JSON.parse(JSON.stringify(c));
        remap(c.audio, 'autoGainControl', 'mozAutoGainControl');
        remap(c.audio, 'noiseSuppression', 'mozNoiseSuppression');
      }

      return nativeGetUserMedia(c);
    };

    if (MediaStreamTrack && MediaStreamTrack.prototype.getSettings) {
      const nativeGetSettings = MediaStreamTrack.prototype.getSettings;

      MediaStreamTrack.prototype.getSettings = function () {
        const obj = nativeGetSettings.apply(this, arguments);
        remap(obj, 'mozAutoGainControl', 'autoGainControl');
        remap(obj, 'mozNoiseSuppression', 'noiseSuppression');
        return obj;
      };
    }

    if (MediaStreamTrack && MediaStreamTrack.prototype.applyConstraints) {
      const nativeApplyConstraints = MediaStreamTrack.prototype.applyConstraints;

      MediaStreamTrack.prototype.applyConstraints = function (c) {
        if (this.kind === 'audio' && typeof c === 'object') {
          c = JSON.parse(JSON.stringify(c));
          remap(c, 'autoGainControl', 'mozAutoGainControl');
          remap(c, 'noiseSuppression', 'mozNoiseSuppression');
        }

        return nativeApplyConstraints.apply(this, [c]);
      };
    }
  }
}

}),
/* 56 */
(function(module, __webpack_exports__, __webpack_require__) {

"use strict";
/* harmony export (immutable) */ __webpack_exports__["a"] = shimGetDisplayMedia;
/*
 *  Copyright (c) 2018 The adapter.js project authors. All Rights Reserved.
 *
 *  Use of this source code is governed by a BSD-style license
 *  that can be found in the LICENSE file in the root of the source
 *  tree.
 */

/* eslint-env node */


function shimGetDisplayMedia(window, preferredMediaSource) {
  if (window.navigator.mediaDevices && 'getDisplayMedia' in window.navigator.mediaDevices) {
    return;
  }

  if (!window.navigator.mediaDevices) {
    return;
  }

  window.navigator.mediaDevices.getDisplayMedia = function (constraints) {
    if (!(constraints && constraints.video)) {
      const err = new DOMException('getDisplayMedia without video ' + 'constraints is undefined');
      err.name = 'NotFoundError'; // from https://heycam.github.io/webidl/#idl-DOMException-error-names

      err.code = 8;
      return Promise.reject(err);
    }

    if (constraints.video === true) {
      constraints.video = {
        mediaSource: preferredMediaSource
      };
    } else {
      constraints.video.mediaSource = preferredMediaSource;
    }

    return window.navigator.mediaDevices.getUserMedia(constraints);
  };
}

}),
/* 57 */
(function(module, __webpack_exports__, __webpack_require__) {

"use strict";
Object.defineProperty(__webpack_exports__, "__esModule", { value: true });
/* harmony export (immutable) */ __webpack_exports__["shimLocalStreamsAPI"] = shimLocalStreamsAPI;
/* harmony export (immutable) */ __webpack_exports__["shimRemoteStreamsAPI"] = shimRemoteStreamsAPI;
/* harmony export (immutable) */ __webpack_exports__["shimCallbacksAPI"] = shimCallbacksAPI;
/* harmony export (immutable) */ __webpack_exports__["shimGetUserMedia"] = shimGetUserMedia;
/* harmony export (immutable) */ __webpack_exports__["shimRTCIceServerUrls"] = shimRTCIceServerUrls;
/* harmony export (immutable) */ __webpack_exports__["shimTrackEventTransceiver"] = shimTrackEventTransceiver;
/* harmony export (immutable) */ __webpack_exports__["shimCreateOfferLegacy"] = shimCreateOfferLegacy;
/* harmony import */ var __WEBPACK_IMPORTED_MODULE_0__utils__ = __webpack_require__(4);
/*
 *  Copyright (c) 2016 The WebRTC project authors. All Rights Reserved.
 *
 *  Use of this source code is governed by a BSD-style license
 *  that can be found in the LICENSE file in the root of the source
 *  tree.
 */



function shimLocalStreamsAPI(window) {
  if (typeof window !== 'object' || !window.RTCPeerConnection) {
    return;
  }

  if (!('getLocalStreams' in window.RTCPeerConnection.prototype)) {
    window.RTCPeerConnection.prototype.getLocalStreams = function () {
      if (!this._localStreams) {
        this._localStreams = [];
      }

      return this._localStreams;
    };
  }

  if (!('addStream' in window.RTCPeerConnection.prototype)) {
    const _addTrack = window.RTCPeerConnection.prototype.addTrack;

    window.RTCPeerConnection.prototype.addStream = function (stream) {
      if (!this._localStreams) {
        this._localStreams = [];
      }

      if (!this._localStreams.includes(stream)) {
        this._localStreams.push(stream);
      }

      stream.getTracks().forEach(track => _addTrack.call(this, track, stream));
    };

    window.RTCPeerConnection.prototype.addTrack = function (track, stream) {
      if (stream) {
        if (!this._localStreams) {
          this._localStreams = [stream];
        } else if (!this._localStreams.includes(stream)) {
          this._localStreams.push(stream);
        }
      }

      return _addTrack.call(this, track, stream);
    };
  }

  if (!('removeStream' in window.RTCPeerConnection.prototype)) {
    window.RTCPeerConnection.prototype.removeStream = function (stream) {
      if (!this._localStreams) {
        this._localStreams = [];
      }

      const index = this._localStreams.indexOf(stream);

      if (index === -1) {
        return;
      }

      this._localStreams.splice(index, 1);

      const tracks = stream.getTracks();
      this.getSenders().forEach(sender => {
        if (tracks.includes(sender.track)) {
          this.removeTrack(sender);
        }
      });
    };
  }
}
function shimRemoteStreamsAPI(window) {
  if (typeof window !== 'object' || !window.RTCPeerConnection) {
    return;
  }

  if (!('getRemoteStreams' in window.RTCPeerConnection.prototype)) {
    window.RTCPeerConnection.prototype.getRemoteStreams = function () {
      return this._remoteStreams ? this._remoteStreams : [];
    };
  }

  if (!('onaddstream' in window.RTCPeerConnection.prototype)) {
    Object.defineProperty(window.RTCPeerConnection.prototype, 'onaddstream', {
      get() {
        return this._onaddstream;
      },

      set(f) {
        if (this._onaddstream) {
          this.removeEventListener('addstream', this._onaddstream);
          this.removeEventListener('track', this._onaddstreampoly);
        }

        this.addEventListener('addstream', this._onaddstream = f);
        this.addEventListener('track', this._onaddstreampoly = e => {
          e.streams.forEach(stream => {
            if (!this._remoteStreams) {
              this._remoteStreams = [];
            }

            if (this._remoteStreams.includes(stream)) {
              return;
            }

            this._remoteStreams.push(stream);

            const event = new Event('addstream');
            event.stream = stream;
            this.dispatchEvent(event);
          });
        });
      }

    });
    const origSetRemoteDescription = window.RTCPeerConnection.prototype.setRemoteDescription;

    window.RTCPeerConnection.prototype.setRemoteDescription = function () {
      const pc = this;

      if (!this._onaddstreampoly) {
        this.addEventListener('track', this._onaddstreampoly = function (e) {
          e.streams.forEach(stream => {
            if (!pc._remoteStreams) {
              pc._remoteStreams = [];
            }

            if (pc._remoteStreams.indexOf(stream) >= 0) {
              return;
            }

            pc._remoteStreams.push(stream);

            const event = new Event('addstream');
            event.stream = stream;
            pc.dispatchEvent(event);
          });
        });
      }

      return origSetRemoteDescription.apply(pc, arguments);
    };
  }
}
function shimCallbacksAPI(window) {
  if (typeof window !== 'object' || !window.RTCPeerConnection) {
    return;
  }

  const prototype = window.RTCPeerConnection.prototype;
  const createOffer = prototype.createOffer;
  const createAnswer = prototype.createAnswer;
  const setLocalDescription = prototype.setLocalDescription;
  const setRemoteDescription = prototype.setRemoteDescription;
  const addIceCandidate = prototype.addIceCandidate;

  prototype.createOffer = function (successCallback, failureCallback) {
    const options = arguments.length >= 2 ? arguments[2] : arguments[0];
    const promise = createOffer.apply(this, [options]);

    if (!failureCallback) {
      return promise;
    }

    promise.then(successCallback, failureCallback);
    return Promise.resolve();
  };

  prototype.createAnswer = function (successCallback, failureCallback) {
    const options = arguments.length >= 2 ? arguments[2] : arguments[0];
    const promise = createAnswer.apply(this, [options]);

    if (!failureCallback) {
      return promise;
    }

    promise.then(successCallback, failureCallback);
    return Promise.resolve();
  };

  let withCallback = function (description, successCallback, failureCallback) {
    const promise = setLocalDescription.apply(this, [description]);

    if (!failureCallback) {
      return promise;
    }

    promise.then(successCallback, failureCallback);
    return Promise.resolve();
  };

  prototype.setLocalDescription = withCallback;

  withCallback = function (description, successCallback, failureCallback) {
    const promise = setRemoteDescription.apply(this, [description]);

    if (!failureCallback) {
      return promise;
    }

    promise.then(successCallback, failureCallback);
    return Promise.resolve();
  };

  prototype.setRemoteDescription = withCallback;

  withCallback = function (candidate, successCallback, failureCallback) {
    const promise = addIceCandidate.apply(this, [candidate]);

    if (!failureCallback) {
      return promise;
    }

    promise.then(successCallback, failureCallback);
    return Promise.resolve();
  };

  prototype.addIceCandidate = withCallback;
}
function shimGetUserMedia(window) {
  const navigator = window && window.navigator;

  if (!navigator.getUserMedia && navigator.mediaDevices && navigator.mediaDevices.getUserMedia) {
    navigator.getUserMedia = function (constraints, cb, errcb) {
      navigator.mediaDevices.getUserMedia(constraints).then(cb, errcb);
    }.bind(navigator);
  }
}
function shimRTCIceServerUrls(window) {
  // migrate from non-spec RTCIceServer.url to RTCIceServer.urls
  const OrigPeerConnection = window.RTCPeerConnection;

  window.RTCPeerConnection = function (pcConfig, pcConstraints) {
    if (pcConfig && pcConfig.iceServers) {
      const newIceServers = [];

      for (let i = 0; i < pcConfig.iceServers.length; i++) {
        let server = pcConfig.iceServers[i];

        if (!server.hasOwnProperty('urls') && server.hasOwnProperty('url')) {
          __WEBPACK_IMPORTED_MODULE_0__utils__["a" /* deprecated */]('RTCIceServer.url', 'RTCIceServer.urls');
          server = JSON.parse(JSON.stringify(server));
          server.urls = server.url;
          delete server.url;
          newIceServers.push(server);
        } else {
          newIceServers.push(pcConfig.iceServers[i]);
        }
      }

      pcConfig.iceServers = newIceServers;
    }

    return new OrigPeerConnection(pcConfig, pcConstraints);
  };

  window.RTCPeerConnection.prototype = OrigPeerConnection.prototype; // wrap static methods. Currently just generateCertificate.

  if ('generateCertificate' in window.RTCPeerConnection) {
    Object.defineProperty(window.RTCPeerConnection, 'generateCertificate', {
      get() {
        return OrigPeerConnection.generateCertificate;
      }

    });
  }
}
function shimTrackEventTransceiver(window) {
  // Add event.transceiver member over deprecated event.receiver
  if (typeof window === 'object' && window.RTCPeerConnection && 'receiver' in window.RTCTrackEvent.prototype && // can't check 'transceiver' in window.RTCTrackEvent.prototype, as it is
  // defined for some reason even when window.RTCTransceiver is not.
  !window.RTCTransceiver) {
    Object.defineProperty(window.RTCTrackEvent.prototype, 'transceiver', {
      get() {
        return {
          receiver: this.receiver
        };
      }

    });
  }
}
function shimCreateOfferLegacy(window) {
  const origCreateOffer = window.RTCPeerConnection.prototype.createOffer;

  window.RTCPeerConnection.prototype.createOffer = function (offerOptions) {
    if (offerOptions) {
      if (typeof offerOptions.offerToReceiveAudio !== 'undefined') {
        // support bit values
        offerOptions.offerToReceiveAudio = !!offerOptions.offerToReceiveAudio;
      }

      const audioTransceiver = this.getTransceivers().find(transceiver => transceiver.sender.track && transceiver.sender.track.kind === 'audio');

      if (offerOptions.offerToReceiveAudio === false && audioTransceiver) {
        if (audioTransceiver.direction === 'sendrecv') {
          if (audioTransceiver.setDirection) {
            audioTransceiver.setDirection('sendonly');
          } else {
            audioTransceiver.direction = 'sendonly';
          }
        } else if (audioTransceiver.direction === 'recvonly') {
          if (audioTransceiver.setDirection) {
            audioTransceiver.setDirection('inactive');
          } else {
            audioTransceiver.direction = 'inactive';
          }
        }
      } else if (offerOptions.offerToReceiveAudio === true && !audioTransceiver) {
        this.addTransceiver('audio');
      }

      if (typeof offerOptions.offerToReceiveVideo !== 'undefined') {
        // support bit values
        offerOptions.offerToReceiveVideo = !!offerOptions.offerToReceiveVideo;
      }

      const videoTransceiver = this.getTransceivers().find(transceiver => transceiver.sender.track && transceiver.sender.track.kind === 'video');

      if (offerOptions.offerToReceiveVideo === false && videoTransceiver) {
        if (videoTransceiver.direction === 'sendrecv') {
          if (videoTransceiver.setDirection) {
            videoTransceiver.setDirection('sendonly');
          } else {
            videoTransceiver.direction = 'sendonly';
          }
        } else if (videoTransceiver.direction === 'recvonly') {
          if (videoTransceiver.setDirection) {
            videoTransceiver.setDirection('inactive');
          } else {
            videoTransceiver.direction = 'inactive';
          }
        }
      } else if (offerOptions.offerToReceiveVideo === true && !videoTransceiver) {
        this.addTransceiver('video');
      }
    }

    return origCreateOffer.apply(this, arguments);
  };
}

}),
/* 58 */
(function(module, __webpack_exports__, __webpack_require__) {

"use strict";
Object.defineProperty(__webpack_exports__, "__esModule", { value: true });
/* harmony export (immutable) */ __webpack_exports__["shimRTCIceCandidate"] = shimRTCIceCandidate;
/* harmony export (immutable) */ __webpack_exports__["shimMaxMessageSize"] = shimMaxMessageSize;
/* harmony export (immutable) */ __webpack_exports__["shimSendThrowTypeError"] = shimSendThrowTypeError;
/* harmony export (immutable) */ __webpack_exports__["shimConnectionState"] = shimConnectionState;
/* harmony import */ var __WEBPACK_IMPORTED_MODULE_0_sdp__ = __webpack_require__(19);
/* harmony import */ var __WEBPACK_IMPORTED_MODULE_0_sdp___default = __webpack_require__.n(__WEBPACK_IMPORTED_MODULE_0_sdp__);
/* harmony import */ var __WEBPACK_IMPORTED_MODULE_1__utils__ = __webpack_require__(4);
/*
 *  Copyright (c) 2017 The WebRTC project authors. All Rights Reserved.
 *
 *  Use of this source code is governed by a BSD-style license
 *  that can be found in the LICENSE file in the root of the source
 *  tree.
 */

/* eslint-env node */




function shimRTCIceCandidate(window) {
  // foundation is arbitrarily chosen as an indicator for full support for
  // https://w3c.github.io/webrtc-pc/#rtcicecandidate-interface
  if (!window.RTCIceCandidate || window.RTCIceCandidate && 'foundation' in window.RTCIceCandidate.prototype) {
    return;
  }

  const NativeRTCIceCandidate = window.RTCIceCandidate;

  window.RTCIceCandidate = function (args) {
    // Remove the a= which shouldn't be part of the candidate string.
    if (typeof args === 'object' && args.candidate && args.candidate.indexOf('a=') === 0) {
      args = JSON.parse(JSON.stringify(args));
      args.candidate = args.candidate.substr(2);
    }

    if (args.candidate && args.candidate.length) {
      // Augment the native candidate with the parsed fields.
      const nativeCandidate = new NativeRTCIceCandidate(args);
      const parsedCandidate = __WEBPACK_IMPORTED_MODULE_0_sdp___default.a.parseCandidate(args.candidate);
      const augmentedCandidate = Object.assign(nativeCandidate, parsedCandidate); // Add a serializer that does not serialize the extra attributes.

      augmentedCandidate.toJSON = function () {
        return {
          candidate: augmentedCandidate.candidate,
          sdpMid: augmentedCandidate.sdpMid,
          sdpMLineIndex: augmentedCandidate.sdpMLineIndex,
          usernameFragment: augmentedCandidate.usernameFragment
        };
      };

      return augmentedCandidate;
    }

    return new NativeRTCIceCandidate(args);
  };

  window.RTCIceCandidate.prototype = NativeRTCIceCandidate.prototype; // Hook up the augmented candidate in onicecandidate and
  // addEventListener('icecandidate', ...)

  __WEBPACK_IMPORTED_MODULE_1__utils__["g" /* wrapPeerConnectionEvent */](window, 'icecandidate', e => {
    if (e.candidate) {
      Object.defineProperty(e, 'candidate', {
        value: new window.RTCIceCandidate(e.candidate),
        writable: 'false'
      });
    }

    return e;
  });
}
function shimMaxMessageSize(window) {
  if (window.RTCSctpTransport || !window.RTCPeerConnection) {
    return;
  }

  const browserDetails = __WEBPACK_IMPORTED_MODULE_1__utils__["b" /* detectBrowser */](window);

  if (!('sctp' in window.RTCPeerConnection.prototype)) {
    Object.defineProperty(window.RTCPeerConnection.prototype, 'sctp', {
      get() {
        return typeof this._sctp === 'undefined' ? null : this._sctp;
      }

    });
  }

  const sctpInDescription = function (description) {
    const sections = __WEBPACK_IMPORTED_MODULE_0_sdp___default.a.splitSections(description.sdp);
    sections.shift();
    return sections.some(mediaSection => {
      const mLine = __WEBPACK_IMPORTED_MODULE_0_sdp___default.a.parseMLine(mediaSection);
      return mLine && mLine.kind === 'application' && mLine.protocol.indexOf('SCTP') !== -1;
    });
  };

  const getRemoteFirefoxVersion = function (description) {
    // TODO: Is there a better solution for detecting Firefox?
    const match = description.sdp.match(/mozilla...THIS_IS_SDPARTA-(\d+)/);

    if (match === null || match.length < 2) {
      return -1;
    }

    const version = parseInt(match[1], 10); // Test for NaN (yes, this is ugly)

    return version !== version ? -1 : version;
  };

  const getCanSendMaxMessageSize = function (remoteIsFirefox) {
    // Every implementation we know can send at least 64 KiB.
    // Note: Although Chrome is technically able to send up to 256 KiB, the
    //       data does not reach the other peer reliably.
    //       See: https://bugs.chromium.org/p/webrtc/issues/detail?id=8419
    let canSendMaxMessageSize = 65536;

    if (browserDetails.browser === 'firefox') {
      if (browserDetails.version < 57) {
        if (remoteIsFirefox === -1) {
          // FF < 57 will send in 16 KiB chunks using the deprecated PPID
          // fragmentation.
          canSendMaxMessageSize = 16384;
        } else {
          // However, other FF (and RAWRTC) can reassemble PPID-fragmented
          // messages. Thus, supporting ~2 GiB when sending.
          canSendMaxMessageSize = 2147483637;
        }
      } else if (browserDetails.version < 60) {
        // Currently, all FF >= 57 will reset the remote maximum message size
        // to the default value when a data channel is created at a later
        // stage. :(
        // See: https://bugzilla.mozilla.org/show_bug.cgi?id=1426831
        canSendMaxMessageSize = browserDetails.version === 57 ? 65535 : 65536;
      } else {
        // FF >= 60 supports sending ~2 GiB
        canSendMaxMessageSize = 2147483637;
      }
    }

    return canSendMaxMessageSize;
  };

  const getMaxMessageSize = function (description, remoteIsFirefox) {
    // Note: 65536 bytes is the default value from the SDP spec. Also,
    //       every implementation we know supports receiving 65536 bytes.
    let maxMessageSize = 65536; // FF 57 has a slightly incorrect default remote max message size, so
    // we need to adjust it here to avoid a failure when sending.
    // See: https://bugzilla.mozilla.org/show_bug.cgi?id=1425697

    if (browserDetails.browser === 'firefox' && browserDetails.version === 57) {
      maxMessageSize = 65535;
    }

    const match = __WEBPACK_IMPORTED_MODULE_0_sdp___default.a.matchPrefix(description.sdp, 'a=max-message-size:');

    if (match.length > 0) {
      maxMessageSize = parseInt(match[0].substr(19), 10);
    } else if (browserDetails.browser === 'firefox' && remoteIsFirefox !== -1) {
      // If the maximum message size is not present in the remote SDP and
      // both local and remote are Firefox, the remote peer can receive
      // ~2 GiB.
      maxMessageSize = 2147483637;
    }

    return maxMessageSize;
  };

  const origSetRemoteDescription = window.RTCPeerConnection.prototype.setRemoteDescription;

  window.RTCPeerConnection.prototype.setRemoteDescription = function () {
    this._sctp = null;

    if (sctpInDescription(arguments[0])) {
      // Check if the remote is FF.
      const isFirefox = getRemoteFirefoxVersion(arguments[0]); // Get the maximum message size the local peer is capable of sending

      const canSendMMS = getCanSendMaxMessageSize(isFirefox); // Get the maximum message size of the remote peer.

      const remoteMMS = getMaxMessageSize(arguments[0], isFirefox); // Determine final maximum message size

      let maxMessageSize;

      if (canSendMMS === 0 && remoteMMS === 0) {
        maxMessageSize = Number.POSITIVE_INFINITY;
      } else if (canSendMMS === 0 || remoteMMS === 0) {
        maxMessageSize = Math.max(canSendMMS, remoteMMS);
      } else {
        maxMessageSize = Math.min(canSendMMS, remoteMMS);
      } // Create a dummy RTCSctpTransport object and the 'maxMessageSize'
      // attribute.


      const sctp = {};
      Object.defineProperty(sctp, 'maxMessageSize', {
        get() {
          return maxMessageSize;
        }

      });
      this._sctp = sctp;
    }

    return origSetRemoteDescription.apply(this, arguments);
  };
}
function shimSendThrowTypeError(window) {
  if (!(window.RTCPeerConnection && 'createDataChannel' in window.RTCPeerConnection.prototype)) {
    return;
  } // Note: Although Firefox >= 57 has a native implementation, the maximum
  //       message size can be reset for all data channels at a later stage.
  //       See: https://bugzilla.mozilla.org/show_bug.cgi?id=1426831


  function wrapDcSend(dc, pc) {
    const origDataChannelSend = dc.send;

    dc.send = function () {
      const data = arguments[0];
      const length = data.length || data.size || data.byteLength;

      if (dc.readyState === 'open' && pc.sctp && length > pc.sctp.maxMessageSize) {
        throw new TypeError('Message too large (can send a maximum of ' + pc.sctp.maxMessageSize + ' bytes)');
      }

      return origDataChannelSend.apply(dc, arguments);
    };
  }

  const origCreateDataChannel = window.RTCPeerConnection.prototype.createDataChannel;

  window.RTCPeerConnection.prototype.createDataChannel = function () {
    const dataChannel = origCreateDataChannel.apply(this, arguments);
    wrapDcSend(dataChannel, this);
    return dataChannel;
  };

  __WEBPACK_IMPORTED_MODULE_1__utils__["g" /* wrapPeerConnectionEvent */](window, 'datachannel', e => {
    wrapDcSend(e.channel, e.target);
    return e;
  });
}
/* shims RTCConnectionState by pretending it is the same as iceConnectionState.
 * See https://bugs.chromium.org/p/webrtc/issues/detail?id=6145#c12
 * for why this is a valid hack in Chrome. In Firefox it is slightly incorrect
 * since DTLS failures would be hidden. See
 * https://bugzilla.mozilla.org/show_bug.cgi?id=1265827
 * for the Firefox tracking bug.
 */

function shimConnectionState(window) {
  if (!window.RTCPeerConnection || 'connectionState' in window.RTCPeerConnection.prototype) {
    return;
  }

  const proto = window.RTCPeerConnection.prototype;
  Object.defineProperty(proto, 'connectionState', {
    get() {
      return {
        completed: 'connected',
        checking: 'connecting'
      }[this.iceConnectionState] || this.iceConnectionState;
    },

    enumerable: true,
    configurable: true
  });
  Object.defineProperty(proto, 'onconnectionstatechange', {
    get() {
      return this._onconnectionstatechange || null;
    },

    set(cb) {
      if (this._onconnectionstatechange) {
        this.removeEventListener('connectionstatechange', this._onconnectionstatechange);
        delete this._onconnectionstatechange;
      }

      if (cb) {
        this.addEventListener('connectionstatechange', this._onconnectionstatechange = cb);
      }
    },

    enumerable: true,
    configurable: true
  });
  ['setLocalDescription', 'setRemoteDescription'].forEach(method => {
    const origMethod = proto[method];

    proto[method] = function () {
      if (!this._connectionstatechangepoly) {
        this._connectionstatechangepoly = e => {
          const pc = e.target;

          if (pc._lastConnectionState !== pc.connectionState) {
            pc._lastConnectionState = pc.connectionState;
            const newEvent = new Event('connectionstatechange', e);
            pc.dispatchEvent(newEvent);
          }

          return e;
        };

        this.addEventListener('iceconnectionstatechange', this._connectionstatechangepoly);
      }

      return origMethod.apply(this, arguments);
    };
  });
}

}),
/* 59 */
(function(module, exports, __webpack_require__) {

var $ = __webpack_require__(22);

var DetectRTC = __webpack_require__(20);

var JSON = __webpack_require__(60);

var PhoneNetwork = __webpack_require__(61);

var PhoneLogger = {
  enable: false,
  Level: 'DEBUG'
};
PhoneLogger.url = 'https://localhost:49999';
PhoneLogger.port = '49999'; // PhoneLogger.user = '';

var rootAPI = '/api';
var seq = 0;

const authorizationToken = 'eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJ1c2VybmFtZSI6ImxvZ2dlciIsInBhc3N3b3JkIjoid1JGZCU1Lnd-cF44PDdxLSIsImlhdCI6MTU0OTI1NzU0OH0.L_rBP1IejBsWFZdT4Ih7CFJd-DrQEwY91t8i-wThb4c';

PhoneLogger.debug = function (debug) {
  if (!PhoneLogger.enable||PhoneLogger.Level !== 'DEBUG') return;
  var _data = {
    event: 'debug',
    seq: seq,
    user: PhoneLogger.user,
    direction: debug.direction,
    network: {
      latency: PhoneNetwork.latency,
      uploadSpeed: PhoneNetwork.uploadSpeed,
      downloadSpeed: PhoneNetwork.downloadSpeed
    },
    isWebRTCSupported: DetectRTC.isWebRTCSupported,
    isGetUserMediaSupported: DetectRTC.isGetUserMediaSupported,
    isWebSocketsSupported: DetectRTC.isWebSocketsSupported,
    isAudioContextSupported : DetectRTC.isAudioContextSupported,
    os: DetectRTC.osName + ' ' + DetectRTC.osVersion,
    browser: DetectRTC.browser.name + ' ' + PhoneJs.DetectRTC.browser.fullVersion,
    isMobileDevice: DetectRTC.isMobileDevice // hasMicrophone: DetectRTC.hasMicrophone,
    // hasWebcam: DetectRTC.hasWebcam,
    // hasWebcamPermissions: DetectRTC.isWebsiteHasWebcamPermissions,
    // hasMicrophonePermissions: DetectRTC.isWebsiteHasMicrophonePermissions,
    // isGetUserMediaSupported: DetectRTC.isGetUserMediaSupported,
    // isWebRTCSupported: DetectRTC.isWebRTCSupported

  };

  if (typeof data !== 'string') {
    _data.data = debug.data.toString();
  } else {
    _data.data = debug.data;
  }

  var body = JSON.stringify(_data);
  // var url = PhoneLogger.url + rootAPI + '/debug';
  var url = PhoneLogger.url + rootAPI + '/log';
  seq++;
  $.ajax({
    url: url,
    dataType: 'json',
    headers: {
      'Authorization':'Bearer ' + authorizationToken,
    },
    type: 'POST',
    contentType: 'application/json',
    data: body,
    success: function (data) {
      
    },
    error: function (error) {
      console.log('error: ' + JSON.stringify(error));
    }
  });
};

PhoneLogger.info = function (info) {
  // console.log(info);
  // console.log(info);
  if (!PhoneLogger.enable||PhoneLogger.Level === 'ERROR') return; // var _data = {};

  info.os = DetectRTC.osName + ' ' + DetectRTC.osVersion;
  info.browser = DetectRTC.browser.name + ' ' + PhoneJs.DetectRTC.browser.fullVersion;
  info.isMobileDevice = DetectRTC.isMobileDevice;
  info.isWebRTCSupported = DetectRTC.isWebRTCSupported;
  info.isGetUserMediaSupported = DetectRTC.isGetUserMediaSupported;
  info.isWebSocketsSupported = DetectRTC.isWebSocketsSupported;
  info.isAudioContextSupported = DetectRTC.isAudioContextSupported;
  info.network = {
    latency: PhoneNetwork.latency,
    uploadSpeed: PhoneNetwork.uploadSpeed,
    downloadSpeed: PhoneNetwork.downloadSpeed
  }
  var body = JSON.stringify(info);
  // var url = PhoneLogger.url + rootAPI + '/info';
  var url = PhoneLogger.url + rootAPI + '/log';
  $.ajax({
    url: url,
    dataType: 'json',
    headers: {
      'Authorization':'Bearer ' + authorizationToken,
    },
    type: 'POST',
    contentType: 'application/json',
    data: body,
    success: function (data) {},
    error: function (error) {
      console.log('error: ' + JSON.stringify(error));
    }
  });
};

PhoneLogger.error = function (error) {
  if(!PhoneLogger.enable) return;
  var _data = {};
  error.os = DetectRTC.osName + ' ' + DetectRTC.osVersion;
  error.browser = DetectRTC.browser.name + ' ' + PhoneJs.DetectRTC.browser.fullVersion;
  error.isMobileDevice = DetectRTC.isMobileDevice;
  error.isWebRTCSupported = DetectRTC.isWebRTCSupported;
  error.isGetUserMediaSupported = DetectRTC.isGetUserMediaSupported;
  error.isWebSocketsSupported = DetectRTC.isWebSocketsSupported;
  error.isAudioContextSupported = DetectRTC.isAudioContextSupported;
  error.network = {
    latency: PhoneNetwork.latency,
    uploadSpeed: PhoneNetwork.uploadSpeed,
    downloadSpeed: PhoneNetwork.downloadSpeed
  }
  var body = JSON.stringify(error);
  // var url = PhoneLogger.url + rootAPI + '/error';
  var url = PhoneLogger.url + rootAPI + '/log';
  $.ajax({
    url: url,
    dataType: 'json',
    headers: {
      'Authorization':'Bearer ' + authorizationToken,
    },
    type: 'POST',
    contentType: 'application/json',
    data: body,
    success: function (data) {// console.log('response: ' + data);
    },
    error: function (error) {
      console.log('error: ' + JSON.stringify(error));
    }
  });
};

module.exports = PhoneLogger;

}),
/* 60 */
(function(module, exports) {

/*!
Copyright (C) 2013-2017 by Andrea Giammarchi - @WebReflection

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.

*/
var // should be a not so common char
// possibly one JSON does not encode
// possibly one encodeURIComponent does not encode
// right now this char is '~' but this might change in the future
specialChar = '~',
    safeSpecialChar = '\\x' + ('0' + specialChar.charCodeAt(0).toString(16)).slice(-2),
    escapedSafeSpecialChar = '\\' + safeSpecialChar,
    specialCharRG = new RegExp(safeSpecialChar, 'g'),
    safeSpecialCharRG = new RegExp(escapedSafeSpecialChar, 'g'),
    safeStartWithSpecialCharRG = new RegExp('(?:^|([^\\\\]))' + escapedSafeSpecialChar),
    indexOf = [].indexOf || function (v) {
  for (var i = this.length; i-- && this[i] !== v;);

  return i;
},
    $String = String // there's no way to drop warnings in JSHint
// about new String ... well, I need that here!
// faked, and happy linter!
;

function generateReplacer(value, replacer, resolve) {
  var doNotIgnore = false,
      inspect = !!replacer,
      path = [],
      all = [value],
      seen = [value],
      mapp = [resolve ? specialChar : '[Circular]'],
      last = value,
      lvl = 1,
      i,
      fn;

  if (inspect) {
    fn = typeof replacer === 'object' ? function (key, value) {
      return key !== '' && replacer.indexOf(key) < 0 ? void 0 : value;
    } : replacer;
  }

  return function (key, value) {
    // the replacer has rights to decide
    // if a new object should be returned
    // or if there's some key to drop
    // let's call it here rather than "too late"
    if (inspect) value = fn.call(this, key, value); // first pass should be ignored, since it's just the initial object

    if (doNotIgnore) {
      if (last !== this) {
        i = lvl - indexOf.call(all, this) - 1;
        lvl -= i;
        all.splice(lvl, all.length);
        path.splice(lvl - 1, path.length);
        last = this;
      } // console.log(lvl, key, path);


      if (typeof value === 'object' && value) {
        // if object isn't referring to parent object, add to the
        // object path stack. Otherwise it is already there.
        if (indexOf.call(all, value) < 0) {
          all.push(last = value);
        }

        lvl = all.length;
        i = indexOf.call(seen, value);

        if (i < 0) {
          i = seen.push(value) - 1;

          if (resolve) {
            // key cannot contain specialChar but could be not a string
            path.push(('' + key).replace(specialCharRG, safeSpecialChar));
            mapp[i] = specialChar + path.join(specialChar);
          } else {
            mapp[i] = mapp[0];
          }
        } else {
          value = mapp[i];
        }
      } else {
        if (typeof value === 'string' && resolve) {
          // ensure no special char involved on deserialization
          // in this case only first char is important
          // no need to replace all value (better performance)
          value = value.replace(safeSpecialChar, escapedSafeSpecialChar).replace(specialChar, safeSpecialChar);
        }
      }
    } else {
      doNotIgnore = true;
    }

    return value;
  };
}

function retrieveFromPath(current, keys) {
  for (var i = 0, length = keys.length; i < length; current = current[// keys should be normalized back here
  keys[i++].replace(safeSpecialCharRG, specialChar)]);

  return current;
}

function generateReviver(reviver) {
  return function (key, value) {
    var isString = typeof value === 'string';

    if (isString && value.charAt(0) === specialChar) {
      return new $String(value.slice(1));
    }

    if (key === '') value = regenerate(value, value, {}); // again, only one needed, do not use the RegExp for this replacement
    // only keys need the RegExp

    if (isString) value = value.replace(safeStartWithSpecialCharRG, '$1' + specialChar).replace(escapedSafeSpecialChar, safeSpecialChar);
    return reviver ? reviver.call(this, key, value) : value;
  };
}

function regenerateArray(root, current, retrieve) {
  for (var i = 0, length = current.length; i < length; i++) {
    current[i] = regenerate(root, current[i], retrieve);
  }

  return current;
}

function regenerateObject(root, current, retrieve) {
  for (var key in current) {
    if (current.hasOwnProperty(key)) {
      current[key] = regenerate(root, current[key], retrieve);
    }
  }

  return current;
}

function regenerate(root, current, retrieve) {
  return current instanceof Array ? // fast Array reconstruction
  regenerateArray(root, current, retrieve) : current instanceof $String ? // root is an empty string
  current.length ? retrieve.hasOwnProperty(current) ? retrieve[current] : retrieve[current] = retrieveFromPath(root, current.split(specialChar)) : root : current instanceof Object ? // dedicated Object parser
  regenerateObject(root, current, retrieve) : // value as it is
  current;
}

var CircularJSON = {
  stringify: function stringify(value, replacer, space, doNotResolve) {
    return CircularJSON.parser.stringify(value, generateReplacer(value, replacer, !doNotResolve), space);
  },
  parse: function parse(text, reviver) {
    return CircularJSON.parser.parse(text, generateReviver(reviver));
  },
  // A parser should be an API 1:1 compatible with JSON
  // it should expose stringify and parse methods.
  // The default parser is the native JSON.
  parser: JSON
};
module.exports = CircularJSON;

}),
/* 61 */
(function(module, exports, __webpack_require__) {

var $ = __webpack_require__(22);

var Network = __webpack_require__(62);

var PhoneNetwork = {}; 
PhoneNetwork.url = 'https://localhost:49999';

PhoneNetwork.enable = false;

const authorizationToken = 'eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJ1c2VybmFtZSI6ImxvZ2dlciIsInBhc3N3b3JkIjoid1JGZCU1Lnd-cF44PDdxLSIsImlhdCI6MTU0OTI1NzU0OH0.L_rBP1IejBsWFZdT4Ih7CFJd-DrQEwY91t8i-wThb4c';

// PhoneNetwork.url = 'https://phone-log.entro-lab.com';
var net = new Network({
  endpoint: PhoneNetwork.url + '/api/speedtest',
  // Where is located the PHP file.
  latency: {
    // Where is located your `network.php` file.
    // endpoint: PhoneNetwork.url,
    // How many measures should be returned.
    measures: 5,
    // How much attempts to get a valid value should be done for each measure.
    attempts: 3
  },
  upload: {
    // Where is located your `network.php` file.
    // endpoint: 'https://localhost:3443/api/speedtest',
    // The delay while you want to take measures.
    delay: 3000,
    data: {
      // The amount of data to initially use.
      size: 2 * 1024 * 1024,
      // 2 MB
      // If the measure period can't reach the delay defined in the settings,
      // the data amount is multiplied by the following value.
      multiplier: 2
    }
  },
  download: {
    // endpoint: 'https://localhost:3443/api/speedtest',
    delay: 3000,
    data: {
      // The amount of data to initially use.
      size: 1 * 1024 * 1024,
      // 10 MB
      // If the measure period can't reach the delay defined in the settings,
      // the data amount is multiplied by the following value.
      multiplier: 2
    }
  }
});
var arrTimes = [];
var i = 0; // start

var timesToTest = 5;
var tThreshold = 150; //ms

var dummyImage = new Image();
var isConnectedFast = false;
var downloadSize = 380685; //bytes

var uploadSize = 380685; //bytes

var average;

PhoneNetwork.test = function (callback) {
  if(!PhoneNetwork.enable) return; 
  testLatency(function (data) {
    i = 0;
    isConnectedFast = data.avg <= tThreshold;
    /** output */
    if (data.avg) {
      PhoneNetwork.latency = data.avg.toFixed(2);
      // console.log("Latency: " + PhoneNetwork.latency + "ms - isConnectedFast? " + isConnectedFast);

      testConnectionSpeed(function (response) {
        if (callback && typeof callback == 'function') {
          callback(response);
        }
      });
    } else {
      if (callback && typeof callback == 'function') {
        callback(data);
      }
    }
  });
  // testConnectionSpeed(callback);

  // if (callback && typeof callback == 'function') {
  //   callback();
  // }
};

PhoneNetwork.testLatency = function (callback) {
  net.latency.on('end', function (averageLatency, allLatencies) {
    // "allLatencies" is an array containing the five calculated latencies in
    // milliseconds. They're used to determine an average latency.
    // console.log('latency', averageLatency.toFixed(2), allLatencies);
    PhoneNetwork.latency = averageLatency.toFixed(2);
  });
  net.latency.start();
};

PhoneNetwork.testUpload = function (callback) {
  net.upload.on('start', function (dataSize) {// console.log('start', dataSize);
  }).on('progress', function (averageSpeed, instantSpeed) {// Every bandwidth measure are in Mega BYTES per second!
    // console.log('progress', averageSpeed, instantSpeed);
  }).on('restart', function (dataSize) {// The restart event is triggered when the module didn't have time
    // (according to the `delay` option) to take all the measures. A new
    // request will start with data size increased by the multiplier value.
    // console.log('restart', dataSize);
  }).on('end', function (averageSpeed, allInstantSpeeds) {
    // console.log('upload', averageSpeed, allInstantSpeeds);
    PhoneNetwork.uploadSpeed = averageSpeed.toFixed(2);
  }).start();
};

PhoneNetwork.testDownload = function (callback) {
  net.upload.on('start', function (dataSize) {// console.log('start', dataSize);
  }).on('progress', function (averageSpeed, instantSpeed) {// Every bandwidth measure are in Mega BYTES per second!
    // console.log('progress', averageSpeed, instantSpeed);
  }).on('restart', function (dataSize) {// The restart event is triggered when the module didn't have time
    // (according to the `delay` option) to take all the measures. A new
    // request will start with data size increased by the multiplier value.
    // console.log('restart', dataSize);
  }).on('end', function (averageSpeed, allInstantSpeeds) {
    // console.log('download', averageSpeed, allInstantSpeeds);
    PhoneNetwork.downloadSpeed = averageSpeed.toFixed(2);
  }).start();
};
/** test and average time took to download image from server, called recursively timesToTest times */


function testLatency(cb) {
  var testImage = PhoneNetwork.url + '/static/images/sample1.jpg';
  var tStart = new Date().getTime();

  if (i < timesToTest - 1) {
    // dummyImage.src = testImage + '?t=' + tStart;

    // dummyImage.onload = function () {
    //   var tEnd = new Date().getTime();
    //   var tTimeTook = tEnd - tStart;
    //   arrTimes[i] = tTimeTook;
    //   testLatency(cb);
    //   i++;
    // };

    $.ajax({
      url: PhoneNetwork.url + '/api/latencytest',
      headers: {
        'Authorization':'Bearer ' + authorizationToken,
      },
      type: 'GET',
      data: '',
      success: function (data) {
        var tEnd = new Date().getTime();
        var tTimeTook = tEnd - tStart;
        arrTimes[i] = tTimeTook;
        testLatency(cb);
        i++;
      },
      error: function (error) {
        // console.log(error);
        cb(error);
      }
    });
  } else {
    /** calculate average of array items then callback */
    var sum = arrTimes.reduce(function (a, b) {
      return a + b;
    });
    var avg = sum / arrTimes.length;
    cb({avg: avg});
  }
}

function getBase64Image(img) {
  var canvas = document.createElement("canvas");
  canvas.width = img.width;
  canvas.height = img.height;
  var ctx = canvas.getContext("2d");
  ctx.drawImage(img, 0, 0);
  var dataURL = canvas.toDataURL("image/png");
  return dataURL.replace(/^data:image\/(png|jpg);base64,/, "");
}

function toDataUrl(url, callback) {
  var xhr = new XMLHttpRequest();

  xhr.onload = function () {
    var reader = new FileReader();

    reader.onloadend = function () {
      callback(reader.result);
    };

    reader.readAsDataURL(xhr.response);
  };

  xhr.open('GET', url);
  xhr.responseType = 'blob';
  xhr.send();
}

function testConnectionSpeed(callback) {
  var startDownloadTime, endDownloadTime;
  var startUploadTime, endUploadTime;
  var download = new Image();
  var imageAddr = PhoneNetwork.url + '/static/images/sample2.jpg';

  $.ajax({
    url: PhoneNetwork.url + '/api/speedtest',
    headers: {
      'Authorization':'Bearer ' + authorizationToken,
    },
    // dataType: 'json',
    type: 'GET',
    contentType: 'text/plain',
    // processData: false,
    // data: myBase64,
    success: function (data) {
      endDownloadTime = new Date().getTime();
      startUploadTime = new Date().getTime();
      $.ajax({
        url: PhoneNetwork.url + '/api/speedtest',
        headers: {
          'Authorization':'Bearer ' + authorizationToken,
        },
        // dataType: 'json',
        type: 'POST',
        // contentType: 'text/plain',
        // processData: false,
        data: {data : data},
        success: function (data) {
          endUploadTime = (new Date()).getTime();
          var result = getResult();
          if (callback && typeof callback == 'function') {
            callback(result);
          }
        },
        error: function (error) {
          // return error;
          if (callback && typeof callback == 'function') {
            callback(error);
          }
          // console.log('error: ' + JSON.stringify(error));
        }
      });
    },
    error: function (error) {
      // return error;
      if (callback && typeof callback == 'function') {
        callback(error);
      }
      // console.log('error: ' + JSON.stringify(error));
    }
  });

  // download.onload = function () {
  //   endDownloadTime = new Date().getTime();
  //   toDataUrl(imageAddr, function (myBase64) {
  //     startUploadTime = new Date().getTime();
  //     $.ajax({
  //       url: PhoneNetwork.url + '/api/speedtest',
  //       headers: {
  //         'Authorization':'Bearer ' + authorizationToken,
  //       },
  //       // dataType: 'json',
  //       type: 'POST',
  //       contentType: 'text/plain',
  //       // processData: false,
  //       data: myBase64,
  //       success: function (data) {
  //         endUploadTime = (new Date()).getTime();
  //         getResult();
  //         if (callback && typeof callback == 'function') {
  //           callback();
  //         }
  //       },
  //       error: function (error) {
  //         console.log('error: ' + JSON.stringify(error));
  //       }
  //     });
  //   });
  // };

  download.onerror = function (err, msg) {
    console.log("Invalid image, or error downloading");
  };

  startDownloadTime = new Date().getTime();
  var cacheBuster = "?nnn=" + startDownloadTime;
  // download.src = imageAddr + cacheBuster;

  function getResult() {
    var durationDownload = (endDownloadTime - startDownloadTime) / 1000;
    var bitsDownLoaded = downloadSize * 8;
    var speedDownloadBps = (bitsDownLoaded / durationDownload).toFixed(2);
    var speedDownloadKbps = (speedDownloadBps / 1024).toFixed(2);
    var speedDownloadMbps = (speedDownloadKbps / 1024).toFixed(2);
    var durationUpload = (endUploadTime - startUploadTime) / 1000;
    var bitsUpLoaded = uploadSize * 8;
    var speedUploadBps = (bitsUpLoaded / durationUpload).toFixed(2);
    var speedUploadKbps = (speedUploadBps / 1024).toFixed(2);
    var speedUploadMbps = (speedUploadKbps / 1024).toFixed(2); // ShowProgressMessage([
    //   "Your connection speed is:",
    //   speedBps + " bps",
    //   speedKbps + " kbps",
    //   speedMbps + " Mbps"
    // ]);

    PhoneNetwork.downloadSpeed = speedDownloadMbps;
    PhoneNetwork.uploadSpeed = speedUploadMbps;
    // console.log(["Your Download speed is:", // speedBps + " bps",
    // // speedKbps + " kbps",
    // speedDownloadMbps + " Mbps"], ["Your Upload speed is:", // speedBps + " bps",
    // // speedKbps + " kbps",
    // speedUploadMbps + " Mbps"]);
    return {
      latency: PhoneNetwork.latency,
      downloadSpeed: speedDownloadMbps,
      uploadSpeed: speedUploadMbps
    }
  }
}

module.exports = PhoneNetwork;

}),
/* 62 */
(function(module, exports, __webpack_require__) {

/* WEBPACK VAR INJECTION */(function(global) {var require;var require;(function (f) {
  if (true) {
    module.exports = f();
  } else if (typeof define === "function" && define.amd) {
    define([], f);
  } else {
    var g;

    if (typeof window !== "undefined") {
      g = window;
    } else if (typeof global !== "undefined") {
      g = global;
    } else if (typeof self !== "undefined") {
      g = self;
    } else {
      g = this;
    }

    g.Network = f();
  }
})(function () {
  var define, module, exports;
  return function e(t, n, r) {
    function s(o, u) {
      if (!n[o]) {
        if (!t[o]) {
          var a = typeof require == "function" && require;
          if (!u && a) return require(o, !0);
          if (i) return i(o, !0);
          var f = new Error("Cannot find module '" + o + "'");
          throw f.code = "MODULE_NOT_FOUND", f;
        }

        var l = n[o] = {
          exports: {}
        };
        t[o][0].call(l.exports, function (e) {
          var n = t[o][1][e];
          return s(n ? n : e);
        }, l, l.exports, e, t, n, r);
      }

      return n[o].exports;
    }

    var i = typeof require == "function" && require;

    for (var o = 0; o < r.length; o++) s(r[o]);

    return s;
  }({
    1: [function (require, module, exports) {
      'use strict';

      Object.defineProperty(exports, '__esModule', {
        value: true
      });

      var _createDecoratedClass = function () {
        function defineProperties(target, descriptors, initializers) {
          for (var i = 0; i < descriptors.length; i++) {
            var descriptor = descriptors[i];
            var decorators = descriptor.decorators;
            var key = descriptor.key;
            delete descriptor.key;
            delete descriptor.decorators;
            descriptor.enumerable = descriptor.enumerable || false;
            descriptor.configurable = true;
            if ('value' in descriptor || descriptor.initializer) descriptor.writable = true;

            if (decorators) {
              for (var f = 0; f < decorators.length; f++) {
                var decorator = decorators[f];

                if (typeof decorator === 'function') {
                  descriptor = decorator(target, key, descriptor) || descriptor;
                } else {
                  throw new TypeError('The decorator for method ' + descriptor.key + ' is of the invalid type ' + typeof decorator);
                }
              }

              if (descriptor.initializer !== undefined) {
                initializers[key] = descriptor;
                continue;
              }
            }

            Object.defineProperty(target, key, descriptor);
          }
        }

        return function (Constructor, protoProps, staticProps, protoInitializers, staticInitializers) {
          if (protoProps) defineProperties(Constructor.prototype, protoProps, protoInitializers);
          if (staticProps) defineProperties(Constructor, staticProps, staticInitializers);
          return Constructor;
        };
      }();

      function _classCallCheck(instance, Constructor) {
        if (!(instance instanceof Constructor)) {
          throw new TypeError('Cannot call a class as a function');
        }
      }

      function _defineDecoratedPropertyDescriptor(target, key, descriptors) {
        var _descriptor = descriptors[key];
        if (!_descriptor) return;
        var descriptor = {};

        for (var _key in _descriptor) descriptor[_key] = _descriptor[_key];

        descriptor.value = descriptor.initializer.call(target);
        Object.defineProperty(target, key, descriptor);
      }

      var _utilsDecorators = require('../utils/decorators');
      /**
       * A callback used as an event handler.
       * @public
       * @callback EventDispatcher~eventHandler
       * @param {...*} args The extra parameters provided to the `trigger` method.
       * @returns {?boolean} If `false` is explicitly returned, the `trigger` method will return `false`.
       */

      /**
       * @class EventDispatcher
       */


      var EventDispatcher = function () {
        var _instanceInitializers = {};

        function EventDispatcher() {
          _classCallCheck(this, EventDispatcher);

          _defineDecoratedPropertyDescriptor(this, '_eventCallbacks', _instanceInitializers);
        }

        _createDecoratedClass(EventDispatcher, [{
          key: 'on',

          /**
           * Attach a callback to one or more events.
           * @public
           * @method EventDispatcher#on
           * @param {string|string[]} events One or multiple event names.
           * @param {EventDispatcher~eventHandler} callback An event handler.
           * @returns {EventDispatcher}
           */
          value: function on(events, callback) {
            var _this = this;

            events = Array.isArray(events) ? events : [events];
            events.forEach(function (event) {
              var eventCallbacks = _this._eventCallbacks[event] = _this._eventCallbacks[event] || []; // If the callback isn't already registered, store it.

              if (!~eventCallbacks.indexOf(callback)) {
                eventCallbacks.push(callback);
              }
            });
            return this;
          }
          /**
           * Detach a callback from one or more events.
           * @public
           * @method EventDispatcher#off
           * @param {string|string[]} events One or multiple event names.
           * @param {EventDispatcher~eventHandler} [callback=null] An event handler.
           * @returns {EventDispatcher}
           */

        }, {
          key: 'off',
          value: function off(events) {
            var _this2 = this;

            var callback = arguments.length <= 1 || arguments[1] === undefined ? null : arguments[1];
            events = Array.isArray(events) ? events : [events];
            events.forEach(function (event) {
              var eventCallbacks = _this2._eventCallbacks[event]; // If there is no specified callback, simply delete all the callbacks binded to the provided event.

              if (!callback && eventCallbacks) {
                delete _this2._eventCallbacks[event];
              } else {
                var callbackIndex = eventCallbacks ? eventCallbacks.indexOf(callback) : -1; // If the callback is registered, remove it from the array.

                if (callbackIndex != -1) {
                  eventCallbacks.splice(callbackIndex, 1);
                }
              }
            });
            return this;
          }
          /**
           * Trigger an event.
           * @public
           * @method EventDispatcher#trigger
           * @param {string} event An event name.
           * @param {...*} extraParameters Some extra parameters to pass to the event handlers.
           * @returns {boolean} Returns `false` if one of the event handlers explicitly returned `false`.
           */

        }, {
          key: 'trigger',
          value: function trigger(event) {
            for (var _len = arguments.length, extraParameters = Array(_len > 1 ? _len - 1 : 0), _key2 = 1; _key2 < _len; _key2++) {
              extraParameters[_key2 - 1] = arguments[_key2];
            }

            var eventCallbacks = this._eventCallbacks[event] || []; // A callback can return a boolean value which will be logically compared to the other callbacks values before
            // being returned by the trigger() method. This allows a callback to send a "signal" to the caller, like
            // cancelling an action.

            var returnValue = true;
            eventCallbacks.forEach(function (eventCallback) {
              // A callback must explicitly return false if it wants the trigger() method to return false, undefined will
              // not work. This avoids crappy callbacks to mess up with the triggering system.
              var value = eventCallback.apply(undefined, extraParameters);
              value = value !== false ? true : false;
              returnValue = returnValue && value; // Compare the result of the callback to the actual return value
            });
            return returnValue;
          }
        }, {
          key: '_eventCallbacks',
          decorators: [(0, _utilsDecorators.enumerable)(false)],
          initializer: function initializer() {
            return {};
          },
          enumerable: true
        }], null, _instanceInitializers);

        return EventDispatcher;
      }();

      exports['default'] = EventDispatcher;
      module.exports = exports['default'];
      /**
       * All the registered event callbacks, organized by events.
       * @private
       * @member {Object} EventDispatcher#_eventCallbacks
       */
    }, {
      "../utils/decorators": 7
    }],
    2: [function (require, module, exports) {
      'use strict';

      Object.defineProperty(exports, '__esModule', {
        value: true
      });

      var _createDecoratedClass = function () {
        function defineProperties(target, descriptors, initializers) {
          for (var i = 0; i < descriptors.length; i++) {
            var descriptor = descriptors[i];
            var decorators = descriptor.decorators;
            var key = descriptor.key;
            delete descriptor.key;
            delete descriptor.decorators;
            descriptor.enumerable = descriptor.enumerable || false;
            descriptor.configurable = true;
            if ('value' in descriptor || descriptor.initializer) descriptor.writable = true;

            if (decorators) {
              for (var f = 0; f < decorators.length; f++) {
                var decorator = decorators[f];

                if (typeof decorator === 'function') {
                  descriptor = decorator(target, key, descriptor) || descriptor;
                } else {
                  throw new TypeError('The decorator for method ' + descriptor.key + ' is of the invalid type ' + typeof decorator);
                }
              }

              if (descriptor.initializer !== undefined) {
                initializers[key] = descriptor;
                continue;
              }
            }

            Object.defineProperty(target, key, descriptor);
          }
        }

        return function (Constructor, protoProps, staticProps, protoInitializers, staticInitializers) {
          if (protoProps) defineProperties(Constructor.prototype, protoProps, protoInitializers);
          if (staticProps) defineProperties(Constructor, staticProps, staticInitializers);
          return Constructor;
        };
      }();

      var _get = function get(_x2, _x3, _x4) {
        var _again = true;

        _function: while (_again) {
          var object = _x2,
              property = _x3,
              receiver = _x4;
          desc = parent = getter = undefined;
          _again = false;
          if (object === null) object = Function.prototype;
          var desc = Object.getOwnPropertyDescriptor(object, property);

          if (desc === undefined) {
            var parent = Object.getPrototypeOf(object);

            if (parent === null) {
              return undefined;
            } else {
              _x2 = parent;
              _x3 = property;
              _x4 = receiver;
              _again = true;
              continue _function;
            }
          } else if ('value' in desc) {
            return desc.value;
          } else {
            var getter = desc.get;

            if (getter === undefined) {
              return undefined;
            }

            return getter.call(receiver);
          }
        }
      };

      function _interopRequireDefault(obj) {
        return obj && obj.__esModule ? obj : {
          'default': obj
        };
      }

      function _classCallCheck(instance, Constructor) {
        if (!(instance instanceof Constructor)) {
          throw new TypeError('Cannot call a class as a function');
        }
      }

      function _inherits(subClass, superClass) {
        if (typeof superClass !== 'function' && superClass !== null) {
          throw new TypeError('Super expression must either be null or a function, not ' + typeof superClass);
        }

        subClass.prototype = Object.create(superClass && superClass.prototype, {
          constructor: {
            value: subClass,
            enumerable: false,
            writable: true,
            configurable: true
          }
        });
        if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass;
      }

      function _defineDecoratedPropertyDescriptor(target, key, descriptors) {
        var _descriptor = descriptors[key];
        if (!_descriptor) return;
        var descriptor = {};

        for (var _key in _descriptor) descriptor[_key] = _descriptor[_key];

        descriptor.value = descriptor.initializer.call(target);
        Object.defineProperty(target, key, descriptor);
      }

      var _HttpModule2 = require('./HttpModule');

      var _HttpModule3 = _interopRequireDefault(_HttpModule2);

      var _Timing = require('../Timing');

      var _Timing2 = _interopRequireDefault(_Timing);

      var _utilsHelpers = require('../../utils/helpers');

      var _utilsDecorators = require('../../utils/decorators');
      /**
       * @public
       * @typedef {Object} BandwidthModule~settingsObject
       * @extends HttpModule~settingsObject
       * @property {Object} data
       * @property {number} data.size The amount of data to initially use.
       * @property {number} [data.multiplier=2] If the measure period can't reach the delay defined in the settings, the data amount is multiplied by the following value.
       */

      /**
       * Apply a new set of custom settings.
       * @public
       * @method BandwidthModule#settings
       * @param {BandwidthModule~settingsObject} settings A set of custom settings.
       * @returns {BandwidthModule}
       */

      /**
       * Return the current set of settings.
       * @public
       * @method BandwidthModule#settings^2
       * @returns {BandwidthModule~settingsObject}
       */

      /**
       * @class BandwidthModule
       * @extends HttpModule
       * @param {string} loadingType The loading type, `upload` or `download`.
       * @param {BandwidthModule~settingsObject} [settings={}] A set of custom settings.
       */


      var BandwidthModule = function (_HttpModule) {
        var _instanceInitializers = {};
        var _instanceInitializers = {};

        _inherits(BandwidthModule, _HttpModule);

        _createDecoratedClass(BandwidthModule, [{
          key: '_loadingType',
          decorators: [(0, _utilsDecorators.enumerable)(false)],
          initializer: function initializer() {
            return undefined;
          },

          /**
           *
           * @private
           * @member {boolean} BandwidthModule#_intendedEnd
           */
          enumerable: true
        }, {
          key: '_intendedEnd',
          decorators: [(0, _utilsDecorators.enumerable)(false)],
          initializer: function initializer() {
            return false;
          },

          /**
           *
           * @private
           * @member {boolean} BandwidthModule#_isRestarting
           */
          enumerable: true
        }, {
          key: '_isRestarting',
          decorators: [(0, _utilsDecorators.enumerable)(false)],
          initializer: function initializer() {
            return false;
          },

          /**
           * Tracks the value of the `loaded` property for each progress event.
           * @private
           * @member {?number} BandwidthModule#_lastLoadedValue
           */
          enumerable: true
        }, {
          key: '_lastLoadedValue',
          decorators: [(0, _utilsDecorators.enumerable)(false)],
          initializer: function initializer() {
            return null;
          },

          /**
           * The recorded measures of speed.
           * @private
           * @member {number[]} BandwidthModule#_speedRecords
           */
          enumerable: true
        }, {
          key: '_speedRecords',
          decorators: [(0, _utilsDecorators.enumerable)(false)],
          initializer: function initializer() {
            return [];
          },

          /**
           * The average speed.
           * @private
           * @member {number} BandwidthModule#_avgSpeed
           */
          enumerable: true
        }, {
          key: '_avgSpeed',
          decorators: [(0, _utilsDecorators.enumerable)(false)],
          initializer: function initializer() {
            return undefined;
          },

          /**
           * The ID of the current request.
           * @private
           * @member {number} BandwidthModule#_requestID
           */
          enumerable: true
        }, {
          key: '_requestID',
          decorators: [(0, _utilsDecorators.enumerable)(false)],
          initializer: function initializer() {
            return 0;
          },

          /**
           * The ID of the current progress event.
           * @private
           * @member {number} BandwidthModule#_progressID
           */
          enumerable: true
        }, {
          key: '_progressID',
          decorators: [(0, _utilsDecorators.enumerable)(false)],
          initializer: function initializer() {
            return 0;
          },

          /**
           * Defines if measures have started.
           * @private
           * @member {boolean} BandwidthModule#_started
           */
          enumerable: true
        }, {
          key: '_started',
          decorators: [(0, _utilsDecorators.enumerable)(false)],
          initializer: function initializer() {
            return false;
          },

          /**
           * Defines if the current progress event is the first one triggered for the current request.
           * @private
           * @member {boolean} BandwidthModule#_firstProgress
           */
          enumerable: true
        }, {
          key: '_firstProgress',
          decorators: [(0, _utilsDecorators.enumerable)(false)],
          initializer: function initializer() {
            return true;
          },

          /**
           * @private
           * @member {Defer} BandwidthModule#_deferredProgress
           */
          enumerable: true
        }, {
          key: '_deferredProgress',
          decorators: [(0, _utilsDecorators.enumerable)(false)],
          initializer: function initializer() {
            return undefined;
          },

          /**
           * Unique labels for each request, exclusively used to make measures.
           * @private
           * @member {Object} BandwidthModule#_timingLabels
           * @property {?string} start
           * @property {?string} progress
           * @property {?string} end
           * @property {?string} measure
           */
          enumerable: true
        }, {
          key: '_timingLabels',
          decorators: [(0, _utilsDecorators.enumerable)(false)],
          initializer: function initializer() {
            return {
              start: null,
              progress: null,
              end: null,
              measure: null
            };
          },
          enumerable: true
        }], null, _instanceInitializers);

        function BandwidthModule(loadingType) {
          var _this = this;

          var settings = arguments.length <= 1 || arguments[1] === undefined ? {} : arguments[1];

          _classCallCheck(this, BandwidthModule);

          loadingType = ~['upload', 'download'].indexOf(loadingType) ? loadingType : 'download';

          _get(Object.getPrototypeOf(BandwidthModule.prototype), 'constructor', this).call(this, loadingType);

          _defineDecoratedPropertyDescriptor(this, '_loadingType', _instanceInitializers);

          _defineDecoratedPropertyDescriptor(this, '_intendedEnd', _instanceInitializers);

          _defineDecoratedPropertyDescriptor(this, '_isRestarting', _instanceInitializers);

          _defineDecoratedPropertyDescriptor(this, '_lastLoadedValue', _instanceInitializers);

          _defineDecoratedPropertyDescriptor(this, '_speedRecords', _instanceInitializers);

          _defineDecoratedPropertyDescriptor(this, '_avgSpeed', _instanceInitializers);

          _defineDecoratedPropertyDescriptor(this, '_requestID', _instanceInitializers);

          _defineDecoratedPropertyDescriptor(this, '_progressID', _instanceInitializers);

          _defineDecoratedPropertyDescriptor(this, '_started', _instanceInitializers);

          _defineDecoratedPropertyDescriptor(this, '_firstProgress', _instanceInitializers);

          _defineDecoratedPropertyDescriptor(this, '_deferredProgress', _instanceInitializers);

          _defineDecoratedPropertyDescriptor(this, '_timingLabels', _instanceInitializers);

          this._extendDefaultSettings({
            data: {
              // 2 MB for upload, 10 MB for download
              size: loadingType == 'upload' ? 2 * 1024 * 1024 : 10 * 1024 * 1024,
              multiplier: 2
            }
          }).settings(settings);

          this._loadingType = loadingType; // Bind to XHR events

          this.on('xhr-upload-loadstart', function () {
            return _Timing2['default'].mark(_this._timingLabels.start);
          });
          this.on('xhr-readystatechange', function (xhr) {
            if (!_this._started && xhr.readyState == XMLHttpRequest.LOADING) {
              _Timing2['default'].mark(_this._timingLabels.start);

              _this._started = true;
            }
          });
          var eventsPrefix = loadingType == 'upload' ? 'xhr-upload' : 'xhr';
          this.on(eventsPrefix + '-progress', function (xhr, event) {
            return _this._progress(event);
          });
          this.on(eventsPrefix + '-timeout', function () {
            return _this._timeout();
          });
          this.on(eventsPrefix + '-loadend', function () {
            return _this._end();
          });
        }
        /**
         * Start requesting the server to make measures.
         * @public
         * @method BandwidthModule#start
         * @returns {BandwidthModule}
         */


        _createDecoratedClass(BandwidthModule, [{
          key: 'start',
          value: function start() {
            var loadingType = this._loadingType,
                dataSettings = this.settings().data,
                reqID = this._requestID++;
            this._intendedEnd = false;
            this._lastLoadedValue = null;
            this._speedRecords = [];
            this._started = false;
            this._firstProgress = true;
            this._deferredProgress = (0, _utilsHelpers.defer)(); // Trigger the start event

            if (!this._isRestarting) {
              this.trigger('start', dataSettings.size);
            } // Create unique timing labels for the new request


            var labels = this._timingLabels;
            labels.start = loadingType + '-' + reqID + '-start';
            labels.progress = loadingType + '-' + reqID + '-progress';
            labels.end = loadingType + '-' + reqID + '-end';
            labels.measure = loadingType + '-' + reqID + '-measure'; // Generate some random data to upload to the server. Here we're using a Blob instead of an ArrayBuffer because
            // of a bug in Chrome (tested in v33.0.1750.146), causing a freeze of the page while trying to directly upload
            // an ArrayBuffer (through an ArrayBufferView). The freeze lasts nearly 4.5s for 10MB of data. Using a Blob
            // seems to solve the problem.

            var blob = loadingType == 'upload' ? new Blob([new ArrayBuffer(dataSettings.size)]) : null;
            var type = loadingType == 'download' ? 'GET' : 'POST'; // Initiate and send a new request

            this._newRequest(type, {
              size: dataSettings.size
            })._sendRequest(blob);

            return this;
          }
          /**
           * Abort the measures.
           * @public
           * @method BandwidthModule#abort
           * @returns {BandwidthModule}
           */

        }, {
          key: 'abort',
          value: function abort() {
            this._intendedEnd = true;
            return this._abort();
          }
          /**
           * Make bandwidth measures for the current request.
           * @private
           * @method BandwidthModule#_progress
           * @param {ProgressEvent} event The event associated with the progress event of the current request.
           * @returns {BandwidthModule}
           */

        }, {
          key: '_progress',
          value: function _progress(event) {
            var _this2 = this; // Ignore the first progress event, it generally contributes to get incoherent values.


            if (this._firstProgress) return this._firstProgress = false; // Execute the previous progress trigger

            this._deferredProgress.run();

            var labels = this._timingLabels,
                progressID = this._progressID++,
                markLabel = labels.progress + '-' + progressID,
                loaded = event.loaded;

            _Timing2['default'].mark(markLabel); // Measure the average speed (B/s) since the request started


            var avgMeasure = _Timing2['default'].measure(labels.measure + '-avg-' + progressID, labels.start, markLabel),
                avgSpeed = loaded / avgMeasure * 1000;

            var instantSpeed;

            if (this._lastLoadedValue === null) {
              // We are executing the first progress event of the current request
              instantSpeed = avgSpeed; // The instant speed of the first progress event is equal to the average one
            } else {
              // Measure the instant speed (B/s), which defines the speed between two progress events.
              var instantMeasure = _Timing2['default'].measure(labels.measure + '-instant-' + progressID, // Set the mark of the previous progress event as the starting point
              labels.progress + '-' + (progressID - 1), markLabel);

              instantSpeed = (loaded - this._lastLoadedValue) / instantMeasure * 1000;
            } // Save the `loaded` property of the event for the next progress event


            this._lastLoadedValue = loaded; // Defer measures saving and event triggering, this allows to cancel the last progress event, which can generate
            // incoherent values.

            this._deferredProgress = (0, _utilsHelpers.defer)(function () {
              _this2._avgSpeed = avgSpeed;

              _this2._speedRecords.push(instantSpeed);

              _this2.trigger('progress', avgSpeed, instantSpeed);
            });
            return this;
          }
          /**
           * Mark the current request as entirely finished (this means it ended after a time out).
           * @private
           * @method BandwidthModule#_timeout
           * @returns {BandwidthModule}
           */

        }, {
          key: '_timeout',
          value: function _timeout() {
            this._intendedEnd = true;
            return this;
          }
          /**
           * End the measures.
           * @private
           * @method BandwidthModule#_end
           * @returns {BandwidthModule}
           */

        }, {
          key: '_end',
          value: function _end() {
            // A timeout or an abort occured, bypass the further requests and trigger the "end" event.
            if (this._intendedEnd) {
              this._isRestarting = false;
              this.trigger('end', this._avgSpeed, this._speedRecords);
            } // The request ended to early, restart it with an increased data size.
            else {
                var dataSettings = this.settings().data,
                    size = dataSettings.size * dataSettings.multiplier;
                this.settings({
                  data: {
                    size: size
                  }
                });
                this.trigger('restart', size);
                this._isRestarting = true;
                this.start();
              }

            return this;
          }
        }], null, _instanceInitializers);

        return BandwidthModule;
      }(_HttpModule3['default']);

      exports['default'] = BandwidthModule;
      module.exports = exports['default'];
      /**
       *
       * @private
       * @member {string} BandwidthModule#_loadingType
       */
    }, {
      "../../utils/decorators": 7,
      "../../utils/helpers": 8,
      "../Timing": 6,
      "./HttpModule": 3
    }],
    3: [function (require, module, exports) {
      'use strict';

      Object.defineProperty(exports, '__esModule', {
        value: true
      });

      var _createDecoratedClass = function () {
        function defineProperties(target, descriptors, initializers) {
          for (var i = 0; i < descriptors.length; i++) {
            var descriptor = descriptors[i];
            var decorators = descriptor.decorators;
            var key = descriptor.key;
            delete descriptor.key;
            delete descriptor.decorators;
            descriptor.enumerable = descriptor.enumerable || false;
            descriptor.configurable = true;
            if ('value' in descriptor || descriptor.initializer) descriptor.writable = true;

            if (decorators) {
              for (var f = 0; f < decorators.length; f++) {
                var decorator = decorators[f];

                if (typeof decorator === 'function') {
                  descriptor = decorator(target, key, descriptor) || descriptor;
                } else {
                  throw new TypeError('The decorator for method ' + descriptor.key + ' is of the invalid type ' + typeof decorator);
                }
              }

              if (descriptor.initializer !== undefined) {
                initializers[key] = descriptor;
                continue;
              }
            }

            Object.defineProperty(target, key, descriptor);
          }
        }

        return function (Constructor, protoProps, staticProps, protoInitializers, staticInitializers) {
          if (protoProps) defineProperties(Constructor.prototype, protoProps, protoInitializers);
          if (staticProps) defineProperties(Constructor, staticProps, staticInitializers);
          return Constructor;
        };
      }();

      var _get = function get(_x4, _x5, _x6) {
        var _again = true;

        _function: while (_again) {
          var object = _x4,
              property = _x5,
              receiver = _x6;
          desc = parent = getter = undefined;
          _again = false;
          if (object === null) object = Function.prototype;
          var desc = Object.getOwnPropertyDescriptor(object, property);

          if (desc === undefined) {
            var parent = Object.getPrototypeOf(object);

            if (parent === null) {
              return undefined;
            } else {
              _x4 = parent;
              _x5 = property;
              _x6 = receiver;
              _again = true;
              continue _function;
            }
          } else if ('value' in desc) {
            return desc.value;
          } else {
            var getter = desc.get;

            if (getter === undefined) {
              return undefined;
            }

            return getter.call(receiver);
          }
        }
      };

      function _interopRequireDefault(obj) {
        return obj && obj.__esModule ? obj : {
          'default': obj
        };
      }

      function _classCallCheck(instance, Constructor) {
        if (!(instance instanceof Constructor)) {
          throw new TypeError('Cannot call a class as a function');
        }
      }

      function _inherits(subClass, superClass) {
        if (typeof superClass !== 'function' && superClass !== null) {
          throw new TypeError('Super expression must either be null or a function, not ' + typeof superClass);
        }

        subClass.prototype = Object.create(superClass && superClass.prototype, {
          constructor: {
            value: subClass,
            enumerable: false,
            writable: true,
            configurable: true
          }
        });
        if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass;
      }

      function _defineDecoratedPropertyDescriptor(target, key, descriptors) {
        var _descriptor = descriptors[key];
        if (!_descriptor) return;
        var descriptor = {};

        for (var _key in _descriptor) descriptor[_key] = _descriptor[_key];

        descriptor.value = descriptor.initializer.call(target);
        Object.defineProperty(target, key, descriptor);
      }

      var _EventDispatcher2 = require('../EventDispatcher');

      var _EventDispatcher3 = _interopRequireDefault(_EventDispatcher2);

      var _utilsHelpers = require('../../utils/helpers');

      var _utilsDecorators = require('../../utils/decorators');
      /**
       * @public
       * @typedef {Object} HttpModule~settingsObject
       * @property {string} [endpoint=./network.php] Where is located your `network.php` file.
       * @property {number} [delay=8000] The delay while you want to take measures.
       */

      /**
       * @class HttpModule
       * @extends EventDispatcher
       * @param {string} moduleName The name of the instanciated module.
       * @param {HttpModule~settingsObject} [settings={}] A set of custom settings.
       */


      var HttpModule = function (_EventDispatcher) {
        var _instanceInitializers = {};
        var _instanceInitializers = {};

        _inherits(HttpModule, _EventDispatcher);

        _createDecoratedClass(HttpModule, [{
          key: '_defaultSettings',
          decorators: [(0, _utilsDecorators.enumerable)(false)],
          initializer: function initializer() {
            return null;
          },

          /**
           * The current settings.
           * @private
           * @member {?Object} HttpModule#_settings
           */
          enumerable: true
        }, {
          key: '_settings',
          decorators: [(0, _utilsDecorators.enumerable)(false)],
          initializer: function initializer() {
            return null;
          },

          /**
           * The module name, will be send to the server.
           * @private
           * @member {string} HttpModule#_moduleName
           */
          enumerable: true
        }, {
          key: '_moduleName',
          decorators: [(0, _utilsDecorators.enumerable)(false)],
          initializer: function initializer() {
            return undefined;
          },

          /**
           * The current XMLHttpRequest object.
           * @private
           * @member {?XMLHttpRequest} HttpModule#_xhr
           */
          enumerable: true
        }, {
          key: '_xhr',
          decorators: [(0, _utilsDecorators.enumerable)(false)],
          initializer: function initializer() {
            return null;
          },

          /**
           * An URL token to avoid any caching issues. Also allows to identify the request in the Resource Timing entries.
           * @private
           * @member {?string} HttpModule#_lastURLToken
           */
          enumerable: true
        }, {
          key: '_lastURLToken',
          decorators: [(0, _utilsDecorators.enumerable)(false)],
          initializer: function initializer() {
            return null;
          },

          /**
           * Defines if the module is currently running an HTTP request.
           * @private
           * @member {boolean} HttpModule#_requesting
           */
          enumerable: true
        }, {
          key: '_requesting',
          decorators: [(0, _utilsDecorators.enumerable)(false)],
          initializer: function initializer() {
            return false;
          },

          /**
           * Defines if the requesting status has been overridden by the `_setRequesting` method.
           * @private
           * @member {boolean} HttpModule#_requestingOverridden
           */
          enumerable: true
        }, {
          key: '_requestingOverridden',
          decorators: [(0, _utilsDecorators.enumerable)(false)],
          initializer: function initializer() {
            return false;
          },
          enumerable: true
        }], null, _instanceInitializers);

        function HttpModule(moduleName) {
          var _this = this;

          var settings = arguments.length <= 1 || arguments[1] === undefined ? {} : arguments[1];

          _classCallCheck(this, HttpModule);

          _get(Object.getPrototypeOf(HttpModule.prototype), 'constructor', this).call(this);

          _defineDecoratedPropertyDescriptor(this, '_defaultSettings', _instanceInitializers);

          _defineDecoratedPropertyDescriptor(this, '_settings', _instanceInitializers);

          _defineDecoratedPropertyDescriptor(this, '_moduleName', _instanceInitializers);

          _defineDecoratedPropertyDescriptor(this, '_xhr', _instanceInitializers);

          _defineDecoratedPropertyDescriptor(this, '_lastURLToken', _instanceInitializers);

          _defineDecoratedPropertyDescriptor(this, '_requesting', _instanceInitializers);

          _defineDecoratedPropertyDescriptor(this, '_requestingOverridden', _instanceInitializers);

          this._extendDefaultSettings({
            endpoint: './network.php',
            delay: 8000
          });

          this.settings(settings);
          this._moduleName = moduleName; // Each time a request starts or ends, set the requesting value unless it has been overridden with the
          // _setRequesting() method.

          this.on(['xhr-loadstart', 'xhr-upload-loadstart'], function () {
            if (!_this._requestingOverridden) {
              _this._requesting = true;
            }
          });
          this.on(['xhr-loadend', 'xhr-upload-loadend'], function () {
            if (!_this._requestingOverridden) {
              _this._requesting = false;
            }
          });
        }
        /**
         * Apply a new set of custom settings.
         * @public
         * @method HttpModule#settings
         * @param {HttpModule~settingsObject} settings A set of custom settings.
         * @returns {HttpModule}
         */

        /**
         * Return the current set of settings.
         * @public
         * @method HttpModule#settings^2
         * @returns {HttpModule~settingsObject}
         */


        _createDecoratedClass(HttpModule, [{
          key: 'settings',
          value: function settings() {
            var _settings = arguments.length <= 0 || arguments[0] === undefined ? null : arguments[0];

            if ((0, _utilsHelpers.isObject)(_settings)) {
              this._settings = (0, _utilsHelpers.assignStrict)(this._defaultSettings || {}, this._settings || {}, _settings);
              return this;
            } else {
              return (0, _utilsHelpers.copy)(this._settings || this._defaultSettings || {});
            }
          }
          /**
           * Return if the module is currently making a request.
           * @public
           * @method HttpModule#isRequesting
           * @returns {boolean} `true` if the module is requesting, otherwise `false`.
           */

        }, {
          key: 'isRequesting',
          value: function isRequesting() {
            return this._requesting;
          }
          /**
           * Extend the set of default settings.
           * @protected
           * @method HttpModule#_extendDefaultSettings
           * @param {Object} settings The new properties to add to the default settings.
           * @returns {HttpModule}
           */

        }, {
          key: '_extendDefaultSettings',
          value: function _extendDefaultSettings(settings) {
            this._defaultSettings = (0, _utilsHelpers.assign)(this._defaultSettings || {}, settings);
            return this;
          }
          /**
           * Create a new XHR request.
           * @protected
           * @method HttpModule#_newRequest
           * @param {string} httpMethod The HTTP method to use with the request, GET or POST.
           * @param {Object} queryParams The query parameters to use with the request.
           * @returns {HttpModule}
           */

        }, {
          key: '_newRequest',
          value: function _newRequest(httpMethod, queryParams) {
            var _this2 = this; // Check if a callback binded to the "_newRequest" event returns false, if it's the case, cancel the request
            // creation. If the requesting status has been overridden, there's no need to cancel the request since the user
            // should know what he's doing.


            if (!this.trigger('_newRequest') && !this._requestingOverridden) {
              console.warn('To ensure accurate measures, you can only make one request at a time.');
              return this;
            }

            var settings = this.settings(),
                xhr = new XMLHttpRequest(),
                validHttpMethods = ['GET', 'POST']; // Prepare the new request.

            if (!~validHttpMethods.indexOf(httpMethod)) {
              console.warn('The HTTP method must be GET or POST.');
              return this;
            }

            queryParams = queryParams || {};
            var tokenSuffix = new Date().getTime();
            this._lastURLToken = 'network-' + tokenSuffix; // Append the query parameters

            var url = settings.endpoint;
            url += ~url.indexOf('?') ? '&' : '?';
            url += 'module=' + this._moduleName;
            Object.keys(queryParams).forEach(function (param) {
              var value = encodeURIComponent(queryParams[param]);
              url += '&' + param + '=' + value;
            });
            url += '&' + this._lastURLToken;
            xhr.open(httpMethod, url); // Abort the previous request if it hasn't been sent

            if (this._xhr && this._xhr.readyState == XMLHttpRequest.OPENED) {
              this._xhr.abort();
            } // Replace the old request by the new one


            this._xhr = xhr; // Bind all the XHR events

            var events = ['loadstart', 'progress', 'abort', 'error', 'load', 'timeout', 'loadend', 'readystatechange'];
            events.forEach(function (eventType) {
              xhr.addEventListener(eventType, function () {
                for (var _len = arguments.length, args = Array(_len), _key2 = 0; _key2 < _len; _key2++) {
                  args[_key2] = arguments[_key2];
                } // A last progress event can be triggered once a request has timed out, ignore it.


                if (eventType == 'progress' && !_this2._requesting) return;

                _this2.trigger.apply(_this2, ['xhr-' + eventType, xhr].concat(args));
              }); // The XMLHttpRequestUpload interface supports all the above event types except the "readystatechange" one

              if (eventType != 'readystatechange') {
                xhr.upload.addEventListener(eventType, function () {
                  for (var _len2 = arguments.length, args = Array(_len2), _key3 = 0; _key3 < _len2; _key3++) {
                    args[_key3] = arguments[_key3];
                  }

                  _this2.trigger.apply(_this2, ['xhr-upload-' + eventType, xhr].concat(args));
                });
              }
            }); // Define the timeout of the request. We don't use the native `timeout` property since it can distort the
            // measures.
            // See: https://github.com/nesk/network.js/issues/26

            var startTimeout = function startTimeout(xhr) {
              setTimeout(function () {
                if (xhr.readyState != XMLHttpRequest.UNSENT && xhr.readyState != XMLHttpRequest.DONE) {
                  _this2.trigger('xhr-timeout');

                  _this2.trigger('xhr-upload-timeout');

                  xhr.abort();
                }
              }, settings.delay);
            };

            this.on('xhr-upload-loadstart', startTimeout).on('xhr-readystatechange', function (timeoutStarted) {
              return function (xhr) {
                if (!timeoutStarted && xhr.readyState == XMLHttpRequest.LOADING) {
                  timeoutStarted = true;
                  startTimeout(xhr);
                }
              };
            }(false));
            return this;
          }
          /**
           * Send a newly created XHR request.
           * @protected
           * @method HttpModule#_sendRequest
           * @param {?*} [data=null] The data to send with the request.
           * @returns {HttpModule}
           */

        }, {
          key: '_sendRequest',
          value: function _sendRequest() {
            var data = arguments.length <= 0 || arguments[0] === undefined ? null : arguments[0];

            if (this._xhr && this._xhr.readyState == XMLHttpRequest.OPENED) {
              this._xhr.send(data);
            } else {
              console.warn('A request must have been created before sending any data.');
            }

            return this;
          }
          /**
           * Abort the current request.
           * @protected
           * @method HttpModule#_abort
           * @returns {HttpModule}
           */

        }, {
          key: '_abort',
          value: function _abort() {
            if (this._xhr) {
              this._xhr.abort();
            }

            return this;
          }
          /**
           * Get the Resource Timing entry associated to the current request.
           * @protected
           * @method HttpModule#_getTimingEntry
           * @param {HttpModule~timingCallback} callback A callback used to send back the timing entry.
           * @returns {HttpModule}
           */

        }, {
          key: '_getTimingEntry',
          value: function _getTimingEntry(callback) {
            // The Resource Timing entries aren't immediately available once the 'load' event is triggered by an
            // XMLHttpRequest, we must wait for another process tick to check for a refreshed list.
            setTimeout(function (lastURLToken) {
              return function () {
                // Filter the timing entries to return only the one concerned by the last request made
                var entries = performance.getEntriesByType('resource').filter(function (entry) {
                  return ~entry.name.indexOf(lastURLToken);
                });
                /**
                 * A callback used to send back the timing entry.
                 * @private
                 * @callback HttpModule~timingCallback
                 * @param {PerformanceResourceTiming} entry The Resource Timing entry associated to the current request.
                 */

                callback(entries.length ? entries[0] : null);
              };
            }(this._lastURLToken), 0);
            return this;
          }
          /**
           * Override the requesting status of the module.
           * @protected
           * @method HttpModule#_setRequesting
           * @param {boolean} isRequesting The requesting status.
           * @returns {HttpModule}
           */

        }, {
          key: '_setRequesting',
          value: function _setRequesting(isRequesting) {
            this._requestingOverridden = true;
            this._requesting = isRequesting;
            return this;
          }
        }], null, _instanceInitializers);

        return HttpModule;
      }(_EventDispatcher3['default']);

      exports['default'] = HttpModule;
      module.exports = exports['default'];
      /**
       * The default settings.
       * @private
       * @member {?Object} HttpModule#_defaultSettings
       */
    }, {
      "../../utils/decorators": 7,
      "../../utils/helpers": 8,
      "../EventDispatcher": 1
    }],
    4: [function (require, module, exports) {
      'use strict';

      Object.defineProperty(exports, '__esModule', {
        value: true
      });

      var _createDecoratedClass = function () {
        function defineProperties(target, descriptors, initializers) {
          for (var i = 0; i < descriptors.length; i++) {
            var descriptor = descriptors[i];
            var decorators = descriptor.decorators;
            var key = descriptor.key;
            delete descriptor.key;
            delete descriptor.decorators;
            descriptor.enumerable = descriptor.enumerable || false;
            descriptor.configurable = true;
            if ('value' in descriptor || descriptor.initializer) descriptor.writable = true;

            if (decorators) {
              for (var f = 0; f < decorators.length; f++) {
                var decorator = decorators[f];

                if (typeof decorator === 'function') {
                  descriptor = decorator(target, key, descriptor) || descriptor;
                } else {
                  throw new TypeError('The decorator for method ' + descriptor.key + ' is of the invalid type ' + typeof decorator);
                }
              }

              if (descriptor.initializer !== undefined) {
                initializers[key] = descriptor;
                continue;
              }
            }

            Object.defineProperty(target, key, descriptor);
          }
        }

        return function (Constructor, protoProps, staticProps, protoInitializers, staticInitializers) {
          if (protoProps) defineProperties(Constructor.prototype, protoProps, protoInitializers);
          if (staticProps) defineProperties(Constructor, staticProps, staticInitializers);
          return Constructor;
        };
      }();

      var _get = function get(_x5, _x6, _x7) {
        var _again = true;

        _function: while (_again) {
          var object = _x5,
              property = _x6,
              receiver = _x7;
          desc = parent = getter = undefined;
          _again = false;
          if (object === null) object = Function.prototype;
          var desc = Object.getOwnPropertyDescriptor(object, property);

          if (desc === undefined) {
            var parent = Object.getPrototypeOf(object);

            if (parent === null) {
              return undefined;
            } else {
              _x5 = parent;
              _x6 = property;
              _x7 = receiver;
              _again = true;
              continue _function;
            }
          } else if ('value' in desc) {
            return desc.value;
          } else {
            var getter = desc.get;

            if (getter === undefined) {
              return undefined;
            }

            return getter.call(receiver);
          }
        }
      };

      function _interopRequireDefault(obj) {
        return obj && obj.__esModule ? obj : {
          'default': obj
        };
      }

      function _classCallCheck(instance, Constructor) {
        if (!(instance instanceof Constructor)) {
          throw new TypeError('Cannot call a class as a function');
        }
      }

      function _inherits(subClass, superClass) {
        if (typeof superClass !== 'function' && superClass !== null) {
          throw new TypeError('Super expression must either be null or a function, not ' + typeof superClass);
        }

        subClass.prototype = Object.create(superClass && superClass.prototype, {
          constructor: {
            value: subClass,
            enumerable: false,
            writable: true,
            configurable: true
          }
        });
        if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass;
      }

      function _defineDecoratedPropertyDescriptor(target, key, descriptors) {
        var _descriptor = descriptors[key];
        if (!_descriptor) return;
        var descriptor = {};

        for (var _key in _descriptor) descriptor[_key] = _descriptor[_key];

        descriptor.value = descriptor.initializer.call(target);
        Object.defineProperty(target, key, descriptor);
      }

      var _HttpModule2 = require('./HttpModule');

      var _HttpModule3 = _interopRequireDefault(_HttpModule2);

      var _Timing = require('../Timing');

      var _Timing2 = _interopRequireDefault(_Timing);

      var _utilsHelpers = require('../../utils/helpers');

      var _utilsDecorators = require('../../utils/decorators');
      /**
       * @public
       * @typedef {Object} LatencyModule~settingsObject
       * @property {string} [endpoint=./network.php] Where is located your `network.php` file.
       * @property {number} [measures=5] How many measures should be returned.
       * @property {number} [attempts=3] How much attempts to get a valid value should be done for each measure.
       */

      /**
       * @class LatencyModule
       * @extends HttpModule
       * @param {LatencyModule~settingsObject} [settings={}] A set of custom settings.
       */


      var LatencyModule = function (_HttpModule) {
        var _instanceInitializers = {};
        var _instanceInitializers = {};

        _inherits(LatencyModule, _HttpModule);

        _createDecoratedClass(LatencyModule, [{
          key: '_supportsResourceTiming',
          decorators: [(0, _utilsDecorators.enumerable)(false)],
          initializer: function initializer() {
            return undefined;
          },

          /**
           * The total number of requests left.
           * @private
           * @member {number} LatencyModule#_requestsLeft
           */
          enumerable: true
        }, {
          key: '_requestsLeft',
          decorators: [(0, _utilsDecorators.enumerable)(false)],
          initializer: function initializer() {
            return undefined;
          },

          /**
           * The total number of attempts left.
           * @private
           * @member {number} LatencyModule#_attemptsLeft
           */
          enumerable: true
        }, {
          key: '_attemptsLeft',
          decorators: [(0, _utilsDecorators.enumerable)(false)],
          initializer: function initializer() {
            return undefined;
          },

          /**
           * The measured latencies.
           * @private
           * @member {number[]} LatencyModule#_latencies
           */
          enumerable: true
        }, {
          key: '_latencies',
          decorators: [(0, _utilsDecorators.enumerable)(false)],
          initializer: function initializer() {
            return undefined;
          },

          /**
           * The ID of the current request.
           * @private
           * @member {number} LatencyModule#_requestID
           */
          enumerable: true
        }, {
          key: '_requestID',
          decorators: [(0, _utilsDecorators.enumerable)(false)],
          initializer: function initializer() {
            return 0;
          },

          /**
           * Unique labels for each request, exclusively used to make measures.
           * @private
           * @member {Object} LatencyModule#_requestID
           * @property {?string} start
           * @property {?string} end
           * @property {?string} measure
           */
          enumerable: true
        }, {
          key: '_timingLabels',
          decorators: [(0, _utilsDecorators.enumerable)(false)],
          initializer: function initializer() {
            return {
              start: null,
              end: null,
              measure: null
            };
          },
          enumerable: true
        }], null, _instanceInitializers);

        function LatencyModule() {
          var settings = arguments.length <= 0 || arguments[0] === undefined ? {} : arguments[0];

          _classCallCheck(this, LatencyModule);

          _get(Object.getPrototypeOf(LatencyModule.prototype), 'constructor', this).call(this, 'latency');

          _defineDecoratedPropertyDescriptor(this, '_supportsResourceTiming', _instanceInitializers);

          _defineDecoratedPropertyDescriptor(this, '_requestsLeft', _instanceInitializers);

          _defineDecoratedPropertyDescriptor(this, '_attemptsLeft', _instanceInitializers);

          _defineDecoratedPropertyDescriptor(this, '_latencies', _instanceInitializers);

          _defineDecoratedPropertyDescriptor(this, '_requestID', _instanceInitializers);

          _defineDecoratedPropertyDescriptor(this, '_timingLabels', _instanceInitializers);

          this._extendDefaultSettings({
            measures: 5,
            attempts: 3
          }).settings(settings);

          this._defineResourceTimingSupport();
        }
        /**
         * Apply a new set of custom settings.
         * @public
         * @method LatencyModule#settings
         * @param {LatencyModule~settingsObject} settings A set of custom settings.
         * @returns {LatencyModule}
         */

        /**
         * Return the current set of settings.
         * @public
         * @method LatencyModule#settings^2
         * @returns {LatencyModule~settingsObject}
         */


        _createDecoratedClass(LatencyModule, [{
          key: 'settings',
          value: function settings() {
            var _settings = arguments.length <= 0 || arguments[0] === undefined ? null : arguments[0];

            if ((0, _utilsHelpers.isObject)(_settings)) {
              return _get(Object.getPrototypeOf(LatencyModule.prototype), 'settings', this).call(this, (0, _utilsHelpers.assignStrict)(_settings, {
                delay: 0 // We dont want any timeout during a latency calculation

              }));
            } else {
              return (0, _utilsHelpers.except)(_get(Object.getPrototypeOf(LatencyModule.prototype), 'settings', this).call(this), ['delay']);
            }
          }
          /**
           * Start requesting the server to make measures.
           * @public
           * @method LatencyModule#start
           * @returns {LatencyModule}
           */

        }, {
          key: 'start',
          value: function start() {
            var _settings2 = this.settings(); // Set the number of requests required to establish the network latency.


            var measures = _settings2.measures;
            var attempts = _settings2.attempts;
            this._requestsLeft = measures;
            this._attemptsLeft = attempts * measures; // If the browser doesn't support the Resource Timing API, add a request that will be ignored to avoid a longer
            // request due to a possible DNS/whatever fetch.

            if (!this._supportsResourceTiming) {
              this._requestsLeft++;
              this._attemptsLeft++;
            } // Override the requesting value since a complete latency request consists off multiple ones


            this._setRequesting(true);

            this._latencies = [];

            this._nextRequest();

            return this;
          }
          /**
           * Define if the module should support the Resource Timing API.
           * @private
           * @method LatencyModule#_defineResourceTimingSupport
           * @param {boolean} supportsResourceTiming If `undefined`, the support will be determined by feature detection.
           * @returns {LatencyModule}
           */

        }, {
          key: '_defineResourceTimingSupport',
          value: function _defineResourceTimingSupport(supportsResourceTiming) {
            var _this = this;

            if (typeof supportsResourceTiming !== 'boolean') supportsResourceTiming = _Timing2['default'].supportsResourceTiming;
            this._supportsResourceTiming = supportsResourceTiming; // Unregisters all the previously registered events, since this method can be called multiple times.

            this.off(['xhr-load', 'xhr-loadstart', 'xhr-readystatechange']); // Measure the latency with the Resource Timing API once the request is finished

            if (supportsResourceTiming) {
              this.on('xhr-load', function () {
                return _this._measure();
              });
            } // If the browser doesn't support the Resource Timing API, we fallback on a Datetime solution.
            else {
                // Set a mark when the request starts
                this.on('xhr-loadstart', function () {
                  return _Timing2['default'].mark(_this._timingLabels.start);
                }); // Then make a measure with the previous mark

                this.on('xhr-readystatechange', function (xhr) {
                  return _this._measure(xhr);
                });
              }
          }
          /**
           * Initiate the next request used for latency measures.
           * @private
           * @method LatencyModule#_nextRequest
           * @param {boolean} [retry=false] Defines if the next request is a retry due to a failing request or not.
           * @returns {LatencyModule}
           */

        }, {
          key: '_nextRequest',
          value: function _nextRequest() {
            var _this2 = this;

            var retry = arguments.length <= 0 || arguments[0] === undefined ? false : arguments[0];
            var reqID = this._requestID++;
            var requestsLeft = retry ? this._requestsLeft : this._requestsLeft--;

            if (this._attemptsLeft-- && (requestsLeft || retry)) {
              // Create unique timing labels for the new request
              var labels = this._timingLabels;
              labels.start = 'latency-' + reqID + '-start';
              labels.end = 'latency-' + reqID + '-end';
              labels.measure = 'latency-' + reqID + '-measure'; // Create the new request and send it

              this._newRequest('GET')._sendRequest();
            } else {
              // All the requests are finished, set the requesting status to false.
              this._setRequesting(false); // If all the requests have been executed, calculate the average latency. Since the _getTimingEntry() method
              // is asynchronous, wait for the next process tick to execute the _end() method, to be sure that all the
              // latencies have been retrieved.


              setTimeout(function () {
                return _this2._end();
              }, 0);
            }

            return this;
          }
          /**
           * Make latency measures for the last request.
           * @private
           * @method LatencyModule#_measure
           * @param {?XMLHttpRequest} [xhr=null] The concerned XMLHttpRequest if the browser doesn't support the Resource Timing API.
           * @returns {LatencyModule}
           */

        }, {
          key: '_measure',
          value: function _measure() {
            var _this3 = this;

            var xhr = arguments.length <= 0 || arguments[0] === undefined ? null : arguments[0]; // With Resource Timing API

            if (!xhr) {
              this._getTimingEntry(function (entry) {
                // The latency calculation differs between an HTTP and an HTTPS connection
                // See: http://www.w3.org/TR/resource-timing/#processing-model
                var latency = !entry.secureConnectionStart ? entry.connectEnd - entry.connectStart : entry.secureConnectionStart - entry.connectStart;
                if (latency) _this3._latencies.push(latency);

                _this3._nextRequest(!latency);
              });
            } // Without Resource Timing API
            else if (this._requestsLeft < this.settings().measures) {
                // Measure and save the latency if the headers have been received
                if (xhr.readyState == XMLHttpRequest.HEADERS_RECEIVED) {
                  var labels = this._timingLabels;

                  _Timing2['default'].mark(labels.end);

                  var latency = _Timing2['default'].measure(labels.measure, labels.start, labels.end);

                  if (latency) this._latencies.push(latency); // Abort the current request before we run a new one

                  this._abort();

                  this._nextRequest(!latency);
                }
              } // Ignore the first request when using the XHR states. See the comments in the start() method for explanations.
              else {
                  this._nextRequest();
                }

            return this;
          }
          /**
           * End the measures.
           * @private
           * @method LatencyModule#_end
           * @returns {LatencyModule}
           */

        }, {
          key: '_end',
          value: function _end() {
            var latencies = this._latencies; // Get the average latency

            var avgLatency = latencies.reduce(function (a, b) {
              return a + b;
            }, 0) / (latencies.length || 1);
            avgLatency = avgLatency || null; // If there is no measures, restart with the polyfill.

            if (!latencies.length) {
              this._defineResourceTimingSupport(false);

              this.start();
              return this;
            } // If there is not enough measures, display a warning.


            if (latencies.length < this.settings().measures) {
              var _settings3 = this.settings();

              var measures = _settings3.measures;
              var attempts = _settings3.attempts;
              console.warn('\n                An insufficient number of measures have been processed, this could be due to your web server using\n                persistant connections or to your client settings (measures: ' + measures + ', attempts: ' + attempts + ').\n            ');
            } // Trigger the "end" event with the average latency and the latency list as parameters


            this.trigger('end', avgLatency, latencies);
            return this;
          }
        }], null, _instanceInitializers);

        return LatencyModule;
      }(_HttpModule3['default']);

      exports['default'] = LatencyModule;
      module.exports = exports['default'];
      /**
       * Defines if the module supports the Resource Timing API.
       * @private
       * @member {number} LatencyModule#_requestsLeft
       */
    }, {
      "../../utils/decorators": 7,
      "../../utils/helpers": 8,
      "../Timing": 6,
      "./HttpModule": 3
    }],
    5: [function (require, module, exports) {
      'use strict';

      Object.defineProperty(exports, '__esModule', {
        value: true
      });

      var _createDecoratedClass = function () {
        function defineProperties(target, descriptors, initializers) {
          for (var i = 0; i < descriptors.length; i++) {
            var descriptor = descriptors[i];
            var decorators = descriptor.decorators;
            var key = descriptor.key;
            delete descriptor.key;
            delete descriptor.decorators;
            descriptor.enumerable = descriptor.enumerable || false;
            descriptor.configurable = true;
            if ('value' in descriptor || descriptor.initializer) descriptor.writable = true;

            if (decorators) {
              for (var f = 0; f < decorators.length; f++) {
                var decorator = decorators[f];

                if (typeof decorator === 'function') {
                  descriptor = decorator(target, key, descriptor) || descriptor;
                } else {
                  throw new TypeError('The decorator for method ' + descriptor.key + ' is of the invalid type ' + typeof decorator);
                }
              }

              if (descriptor.initializer !== undefined) {
                initializers[key] = descriptor;
                continue;
              }
            }

            Object.defineProperty(target, key, descriptor);
          }
        }

        return function (Constructor, protoProps, staticProps, protoInitializers, staticInitializers) {
          if (protoProps) defineProperties(Constructor.prototype, protoProps, protoInitializers);
          if (staticProps) defineProperties(Constructor, staticProps, staticInitializers);
          return Constructor;
        };
      }();

      function _interopRequireDefault(obj) {
        return obj && obj.__esModule ? obj : {
          'default': obj
        };
      }

      function _defineProperty(obj, key, value) {
        if (key in obj) {
          Object.defineProperty(obj, key, {
            value: value,
            enumerable: true,
            configurable: true,
            writable: true
          });
        } else {
          obj[key] = value;
        }

        return obj;
      }

      function _classCallCheck(instance, Constructor) {
        if (!(instance instanceof Constructor)) {
          throw new TypeError('Cannot call a class as a function');
        }
      }

      function _defineDecoratedPropertyDescriptor(target, key, descriptors) {
        var _descriptor = descriptors[key];
        if (!_descriptor) return;
        var descriptor = {};

        for (var _key in _descriptor) descriptor[_key] = _descriptor[_key];

        descriptor.value = descriptor.initializer.call(target);
        Object.defineProperty(target, key, descriptor);
      }

      var _EventDispatcher = require('./EventDispatcher');

      var _EventDispatcher2 = _interopRequireDefault(_EventDispatcher);

      var _HttpHttpModule = require('./Http/HttpModule');

      var _HttpHttpModule2 = _interopRequireDefault(_HttpHttpModule);

      var _HttpLatencyModule = require('./Http/LatencyModule');

      var _HttpLatencyModule2 = _interopRequireDefault(_HttpLatencyModule);

      var _HttpBandwidthModule = require('./Http/BandwidthModule');

      var _HttpBandwidthModule2 = _interopRequireDefault(_HttpBandwidthModule);

      var _Timing = require('./Timing');

      var _Timing2 = _interopRequireDefault(_Timing);

      var _utilsHelpers = require('../utils/helpers');

      var _utilsDecorators = require('../utils/decorators');
      /**
       * @public
       * @typedef {Object} Network~settingsObject
       * @property {LatencyModule~settingsObject} latency
       * @property {BandwidthModule~settingsObject} upload
       * @property {BandwidthModule~settingsObject} download
       * @example
       * {
       *     // Top-level properties are applied to all the modules
       *     endpoint: './my-new-endpoint/',
       *
       *     // Top-level properties will be overridden by the ones specified in each module
       *     latency: {
       *         endpoint: './my-new-latency-endpoint/'
       *     }
       * }
       */

      /**
       * @class Network
       * @param {Network~settingsObject} [settings={}] A set of custom settings.
       * @member {LatencyModule} latency The latency module.
       * @member {BandwidthModule} upload The upload module.
       * @member {BandwidthModule} download The download module.
       */


      var Network = function () {
        var _instanceInitializers = {};
        var _instanceInitializers = {};

        _createDecoratedClass(Network, [{
          key: '_modules',
          decorators: [(0, _utilsDecorators.enumerable)(false)],
          initializer: function initializer() {
            return {};
          },

          /**
           * Defines if the registered modules have been initialized.
           * @private
           * @member {boolean} Network#_modulesInitialized
           */
          enumerable: true
        }, {
          key: '_modulesInitialized',
          decorators: [(0, _utilsDecorators.enumerable)(false)],
          initializer: function initializer() {
            return false;
          },

          /**
           * The settings defined via the constructor, they will be applied once the modules are initialized.
           * @private
           * @member {Network~settingsObject} Network#_pendingSettings
           */
          enumerable: true
        }, {
          key: '_pendingSettings',
          decorators: [(0, _utilsDecorators.enumerable)(false)],
          initializer: function initializer() {
            return {};
          },

          /**
           * Expose all the internal classes to the global scope. Only for testing purposes!
           * @private
           * @method Network._exposeInternalClasses
           * @returns {Network}
           */
          enumerable: true
        }], [{
          key: '_exposeInternalClasses',
          decorators: [(0, _utilsDecorators.enumerable)(false)],
          value: function _exposeInternalClasses() {
            var global = (0, _utilsHelpers.getGlobalObject)(),
                classes = {
              EventDispatcher: _EventDispatcher2['default'],
              HttpModule: _HttpHttpModule2['default'],
              LatencyModule: _HttpLatencyModule2['default'],
              BandwidthModule: _HttpBandwidthModule2['default'],
              Timing: _Timing2['default']
            };
            Object.keys(classes).forEach(function (name) {
              global[name] = classes[name];
            });
            return this;
          }
        }, {
          key: 'supportsResourceTiming',

          /**
           * Defines if the current browser supports the Resource Timing API.
           * @public
           * @readonly
           * @member {boolean} Network#supportsResourceTiming
           */
          get: function get() {
            return _Timing2['default'].supportsResourceTiming;
          }
          /**
           * The registered modules.
           * @private
           * @member {Object} Network#_modules
           */

        }], _instanceInitializers);

        function Network() {
          var settings = arguments.length <= 0 || arguments[0] === undefined ? {} : arguments[0];

          _classCallCheck(this, Network);

          _defineDecoratedPropertyDescriptor(this, '_modules', _instanceInitializers);

          _defineDecoratedPropertyDescriptor(this, '_modulesInitialized', _instanceInitializers);

          _defineDecoratedPropertyDescriptor(this, '_pendingSettings', _instanceInitializers);

          this._registerModule('latency', function (settings) {
            return new _HttpLatencyModule2['default'](settings);
          })._registerModule('upload', function (settings) {
            return new _HttpBandwidthModule2['default']('upload', settings);
          })._registerModule('download', function (settings) {
            return new _HttpBandwidthModule2['default']('download', settings);
          });

          this._initModules(this.settings(settings));
        }
        /**
         * Apply a new set of custom settings.
         * @public
         * @method Network#settings
         * @param {Network~settingsObject} settings A set of custom settings.
         * @returns {Network}
         */

        /**
         * Return the current set of settings.
         * @public
         * @method Network#settings^2
         * @returns {Network~settingsObject}
         */


        _createDecoratedClass(Network, [{
          key: 'settings',
          value: function settings() {
            var _this = this;

            var _settings = arguments.length <= 0 || arguments[0] === undefined ? null : arguments[0];

            var moduleNames = Object.keys(this._modules);

            if ((0, _utilsHelpers.isObject)(_settings)) {
              var _ret = function () {
                // Extract the global settings
                var globalSettings = (0, _utilsHelpers.except)(_settings, moduleNames); // Extract the local settings

                var localSettings = (0, _utilsHelpers.except)(_settings, Object.keys(globalSettings)); // Create new settings with the global ones nested in the local ones

                _settings = moduleNames.reduce(function (settings, moduleName) {
                  return (0, _utilsHelpers.assign)(settings, _defineProperty({}, moduleName, globalSettings));
                }, {}); // Apply the local settings to the new settings

                _settings = (0, _utilsHelpers.assign)(_settings, localSettings); // Apply the settings to the modules

                if (_this._modulesInitialized) {
                  Object.keys(_this._modules).forEach(function (name) {
                    _this._modules[name].settings(_settings[name]);
                  });
                } // If the modules aren't instanciated, store the settings.
                else {
                    _this._pendingSettings = _settings;
                  }

                return {
                  v: _this
                };
              }();

              if (typeof _ret === 'object') return _ret.v;
            } else {
              return moduleNames.reduce(function (settings, moduleName) {
                return (0, _utilsHelpers.assign)(settings, _defineProperty({}, moduleName, _this._modules[moduleName].settings()));
              }, {});
            }
          }
          /**
           * Return if a module is currently making a request.
           * @public
           * @method Network#isRequesting
           * @returns {boolean} `true` if a module is requesting, otherwise `false`.
           */

        }, {
          key: 'isRequesting',
          value: function isRequesting() {
            var requesting = false;

            for (var _name in this._modules) {
              if (this._modules.hasOwnProperty(_name)) {
                requesting = requesting || this._modules[_name].isRequesting();
              }
            }

            return requesting;
          }
          /**
           * Register a new module for the current `Network` instance.
           * @private
           * @method Network#registerModule
           * @param {string} name The name of the module. Will be used to create the property `Network.<name>`.
           * @param {Network~moduleCallback} moduleCallback A callback used to initialize a module with a set of settings.
           * @returns {Network}
           */

        }, {
          key: '_registerModule',
          value: function _registerModule(name, moduleCallback) {
            /**
             * A callback used to initialize a module with a set of settings.
             * @private
             * @callback Network~moduleCallback
             * @param {Object} settings A set of custom settings.
             * @returns {HttpModule} An instanciated subclass of `HttpModule`.
             */
            this._modules[name] = moduleCallback;
            return this;
          }
          /**
           * Initialize all the registered modules with the settings passed to the constructor.
           * @private
           * @method Network#_initModules
           * @returns {Network}
           */

        }, {
          key: '_initModules',
          value: function _initModules() {
            var _this2 = this;

            if (!this._modulesInitialized) {
              // Initialize the modules with their respective settings
              Object.keys(this._modules).forEach(function (name) {
                _this2._modules[name] = _this2._modules[name](_this2._pendingSettings[name]).on('_newRequest', function () {
                  return !_this2.isRequesting();
                });
                _this2[name] = _this2._modules[name];
              });
              this._modulesInitialized = true;
            }

            return this;
          }
        }], null, _instanceInitializers);

        return Network;
      }();

      exports['default'] = Network;
      module.exports = exports['default'];
    }, {
      "../utils/decorators": 7,
      "../utils/helpers": 8,
      "./EventDispatcher": 1,
      "./Http/BandwidthModule": 2,
      "./Http/HttpModule": 3,
      "./Http/LatencyModule": 4,
      "./Timing": 6
    }],
    6: [function (require, module, exports) {
      'use strict';

      Object.defineProperty(exports, '__esModule', {
        value: true
      });

      var _createDecoratedClass = function () {
        function defineProperties(target, descriptors, initializers) {
          for (var i = 0; i < descriptors.length; i++) {
            var descriptor = descriptors[i];
            var decorators = descriptor.decorators;
            var key = descriptor.key;
            delete descriptor.key;
            delete descriptor.decorators;
            descriptor.enumerable = descriptor.enumerable || false;
            descriptor.configurable = true;
            if ('value' in descriptor || descriptor.initializer) descriptor.writable = true;

            if (decorators) {
              for (var f = 0; f < decorators.length; f++) {
                var decorator = decorators[f];

                if (typeof decorator === 'function') {
                  descriptor = decorator(target, key, descriptor) || descriptor;
                } else {
                  throw new TypeError('The decorator for method ' + descriptor.key + ' is of the invalid type ' + typeof decorator);
                }
              }

              if (descriptor.initializer !== undefined) {
                initializers[key] = descriptor;
                continue;
              }
            }

            Object.defineProperty(target, key, descriptor);
          }
        }

        return function (Constructor, protoProps, staticProps, protoInitializers, staticInitializers) {
          if (protoProps) defineProperties(Constructor.prototype, protoProps, protoInitializers);
          if (staticProps) defineProperties(Constructor, staticProps, staticInitializers);
          return Constructor;
        };
      }();

      function _classCallCheck(instance, Constructor) {
        if (!(instance instanceof Constructor)) {
          throw new TypeError('Cannot call a class as a function');
        }
      }

      function _defineDecoratedPropertyDescriptor(target, key, descriptors) {
        var _descriptor = descriptors[key];
        if (!_descriptor) return;
        var descriptor = {};

        for (var _key in _descriptor) descriptor[_key] = _descriptor[_key];

        descriptor.value = descriptor.initializer.call(target);
        Object.defineProperty(target, key, descriptor);
      }

      var _utilsHelpers = require('../utils/helpers');

      var _utilsDecorators = require('../utils/decorators');
      /**
       * @private
       * @class Timing
       */


      var Timing = function () {
        var _instanceInitializers = {};
        var _instanceInitializers = {};

        _createDecoratedClass(Timing, [{
          key: 'supportsResourceTiming',

          /**
           * Defines if the current browser supports the Resource Timing API.
           * @public
           * @readonly
           * @member {boolean} Timing#supportsResourceTiming
           */
          get: function get() {
            return Boolean(this._support.resourceTiming);
          }
          /**
           * Defines if the current browser supports some specific Timing APIs.
           * @private
           * @member {Object} Timing#_support
           * @property {boolean} performance `true` if the Performance API is available.
           * @property {boolean} userTiming `true` if the User Timing API is available.
           * @property {boolean} resourceTiming `true` if the Resource Timing API is available.
           */

        }, {
          key: '_support',
          decorators: [(0, _utilsDecorators.enumerable)(false)],
          initializer: function initializer() {
            return {};
          },

          /**
           * All the marks created by the `mark` method.
           * @private
           * @member {Object} Timing#_marks
           */
          enumerable: true
        }, {
          key: '_marks',
          decorators: [(0, _utilsDecorators.enumerable)(false)],
          initializer: function initializer() {
            return {};
          },

          /**
           * All the measures created by the `measure` method.
           * @private
           * @member {Object} Timing#_measures
           */
          enumerable: true
        }, {
          key: '_measures',
          decorators: [(0, _utilsDecorators.enumerable)(false)],
          initializer: function initializer() {
            return {};
          },
          enumerable: true
        }], null, _instanceInitializers);

        function Timing() {
          _classCallCheck(this, Timing);

          _defineDecoratedPropertyDescriptor(this, '_support', _instanceInitializers);

          _defineDecoratedPropertyDescriptor(this, '_marks', _instanceInitializers);

          _defineDecoratedPropertyDescriptor(this, '_measures', _instanceInitializers);

          var global = (0, _utilsHelpers.getGlobalObject)();
          this._support = {
            performance: !!global.performance,
            userTiming: global.performance && performance.mark,
            resourceTiming: global.performance && typeof performance.getEntriesByType == "function" && performance.timing
          };
        }
        /**
         * Create a new timing mark.
         * @public
         * @method Timing#mark
         * @param {string} label A label associated to the mark.
         * @returns {Timing}
         */


        _createDecoratedClass(Timing, [{
          key: 'mark',
          value: function mark(label) {
            var support = this._support,
                marks = this._marks;

            if (support.userTiming) {
              performance.mark(label);
            }

            if (support.performance) {
              marks[label] = performance.now();
            } else {
              marks[label] = new Date().getTime();
            }

            return this;
          }
          /**
           * Measure the delay between two marks.
           * @public
           * @method Timing#measure
           * @param {string} measureLabel A label associated to the measure.
           * @param {string} markLabelA The label of the first mark.
           * @param {string} markLabelB The label of the second mark.
           * @returns {number} The measured value.
           */

        }, {
          key: 'measure',
          value: function measure(measureLabel, markLabelA, markLabelB) {
            var support = this._support,
                marks = this._marks,
                measures = this._measures;

            if (typeof measures[measureLabel] == 'undefined') {
              var measureWithoutUserTiming = marks[markLabelB] - marks[markLabelA];

              if (support.userTiming) {
                performance.measure(measureLabel, markLabelA, markLabelB);
                var entriesByName = performance.getEntriesByName(measureLabel); // The performance API could return no corresponding entries in Firefox so we must use a fallback.
                // See: https://github.com/nesk/network.js/issues/32#issuecomment-118434305

                measures[measureLabel] = entriesByName.length ? entriesByName[0].duration : measureWithoutUserTiming;
              } else {
                measures[measureLabel] = measureWithoutUserTiming;
              }
            }

            return measures[measureLabel];
          }
        }], null, _instanceInitializers);

        return Timing;
      }();

      exports['default'] = new Timing();
      module.exports = exports['default'];
    }, {
      "../utils/decorators": 7,
      "../utils/helpers": 8
    }],
    7: [function (require, module, exports) {
      /**
       * @callback propertyDecorator
       * @param target
       * @param key
       * @param descriptor
       */

      /**
       * Set the enumerability of a property.
       * @private
       * @function enumerable
       * @param {boolean} isEnumerable Whether the property should be enumerable or not.
       * @returns {propertyDecorator}
       */
      "use strict";

      Object.defineProperty(exports, "__esModule", {
        value: true
      });
      exports.enumerable = enumerable;

      function enumerable(isEnumerable) {
        return function (target, key, descriptor) {
          descriptor.enumerable = isEnumerable;
          return descriptor;
        };
      }
    }, {}],
    8: [function (require, module, exports) {
      (function (global) {
        /**
         * Return the global object.
         * @private
         * @function getGlobalObject
         * @return {Object}
         * @see https://gist.github.com/rauschma/1bff02da66472f555c75
         */
        'use strict';

        Object.defineProperty(exports, '__esModule', {
          value: true
        });

        var _createClass = function () {
          function defineProperties(target, props) {
            for (var i = 0; i < props.length; i++) {
              var descriptor = props[i];
              descriptor.enumerable = descriptor.enumerable || false;
              descriptor.configurable = true;
              if ('value' in descriptor) descriptor.writable = true;
              Object.defineProperty(target, descriptor.key, descriptor);
            }
          }

          return function (Constructor, protoProps, staticProps) {
            if (protoProps) defineProperties(Constructor.prototype, protoProps);
            if (staticProps) defineProperties(Constructor, staticProps);
            return Constructor;
          };
        }();

        exports.getGlobalObject = getGlobalObject;
        exports.isObject = isObject;
        exports.copy = copy;
        exports.assign = assign;
        exports.assignStrict = assignStrict;
        exports.except = except;
        exports.defer = defer;

        function _classCallCheck(instance, Constructor) {
          if (!(instance instanceof Constructor)) {
            throw new TypeError('Cannot call a class as a function');
          }
        }

        function getGlobalObject() {
          // Workers don’t have `window`, only `self`.
          if (typeof self !== 'undefined') {
            return self;
          }

          if (typeof global !== 'undefined') {
            return global;
          } // Not all environments allow `eval` and `Function`, use only as a last resort.


          return new Function('return this')();
        }
        /**
         * Determine if the provided value is an object.
         * @private
         * @function isObject
         * @param {*} obj The value to check.
         * @returns {boolean} `true` if the value is an object, otherwise `false`.
         */


        function isObject(obj) {
          return obj != undefined && obj != null && typeof obj.valueOf() == 'object';
        }
        /**
         * Make a deep copy of any value.
         * @private
         * @function copy
         * @param {*} value The value to copy.
         * @returns {*} The copied value.
         */


        function copy(value) {
          return JSON.parse(JSON.stringify(value));
        }
        /**
         * Copy the properties in the source objects over to the destination object.
         * @private
         * @function _assign
         * @param {boolean} strict Given `true`, new properties will not be copied.
         * @param {Object} [target={}] The destination object.
         * @param {...Object} sources The source objects.
         * @returns {Object} The destination object once the properties are copied.
         */


        function _assign(strict) {
          var target = arguments.length <= 1 || arguments[1] === undefined ? {} : arguments[1];
          target = copy(target);

          for (var _len = arguments.length, sources = Array(_len > 2 ? _len - 2 : 0), _key = 2; _key < _len; _key++) {
            sources[_key - 2] = arguments[_key];
          }

          sources.forEach(function (source) {
            Object.keys(source).forEach(function (key) {
              if (!strict || target.hasOwnProperty(key)) {
                var value = source[key];
                target[key] = isObject(value) ? _assign(strict, target[key], value) : value;
              }
            });
          });
          return target;
        }
        /**
         * Copy all the properties in the source objects over to the destination object.
         * @private
         * @function assign
         * @param {Object} [target={}] The destination object.
         * @param {...Object} sources The source objects.
         * @returns {Object} The destination object once the properties are copied.
         */


        function assign() {
          var target = arguments.length <= 0 || arguments[0] === undefined ? {} : arguments[0];

          for (var _len2 = arguments.length, sources = Array(_len2 > 1 ? _len2 - 1 : 0), _key2 = 1; _key2 < _len2; _key2++) {
            sources[_key2 - 1] = arguments[_key2];
          }

          return _assign.apply(undefined, [false, target].concat(sources));
        }
        /**
         * Copy the properties (but no new ones) in the source objects over to the destination object.
         * @private
         * @function assignStrict
         * @param {Object} [target={}] The destination object.
         * @param {...Object} sources The source objects.
         * @returns {Object} The destination object once the properties are copied.
         */


        function assignStrict() {
          var target = arguments.length <= 0 || arguments[0] === undefined ? {} : arguments[0];

          for (var _len3 = arguments.length, sources = Array(_len3 > 1 ? _len3 - 1 : 0), _key3 = 1; _key3 < _len3; _key3++) {
            sources[_key3 - 1] = arguments[_key3];
          }

          return _assign.apply(undefined, [true, target].concat(sources));
        }
        /**
         * Get a copy of an object without some of its properties.
         * @private
         * @function except
         * @param {Object} obj The original object.
         * @param {string[]} properties The properties to exclude from the copied object.
         * @returns {Object} The copied object without the specified properties.
         */


        function except(obj, properties) {
          var objCopy = copy(obj);
          properties.forEach(function (index) {
            return delete objCopy[index];
          });
          return objCopy;
        }
        /**
         * Defer the execution of a function.
         * @private
         * @function defer
         * @param {Function} func The function to defer.
         * @returns {Defer} The Defer object used to execute the function when needed.
         */


        function defer() {
          var func = arguments.length <= 0 || arguments[0] === undefined ? function () {} : arguments[0];
          /**
           * @private
           * @class Defer
           */

          return new (function () {
            function _class() {
              _classCallCheck(this, _class);

              this.func = func;
            }
            /**
             * Execute the deferred function.
             * @public
             * @method Defer#run
             */


            _createClass(_class, [{
              key: 'run',
              value: function run() {
                if (this.func) this.func();
                delete this.func;
              }
            }]);

            return _class;
          }())();
        }
      }).call(this, typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {});
    }, {}]
  }, {}, [5])(5);
});
/* WEBPACK VAR INJECTION */}.call(exports, __webpack_require__(21)))

})
 ]);
});