/*!
 * SkyWay Copyright(c) 2019 NTT Communications Corporation
 * peerjs Copyright(c) 2013 Michelle Bu <michelle@michellebu.com>
 */
(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["Peer"] = factory();
	else
		root["Peer"] = factory();
})(window, function() {
return /******/ (function(modules) { // webpackBootstrap
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/******/ 			return installedModules[moduleId].exports;
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/******/ 			i: moduleId,
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/************************************************************************/
/******/ ({

/***/ "./node_modules/after/index.js":
/*!*************************************!*\
  !*** ./node_modules/after/index.js ***!
  \*************************************/
/*! no static exports found */
/*! ModuleConcatenation bailout: Module is not an ECMAScript module */
/***/ (function(module, exports) {

module.exports = after

function after(count, callback, err_cb) {
    var bail = false
    err_cb = err_cb || noop
    proxy.count = count

    return (count === 0) ? callback() : proxy

    function proxy(err, result) {
        if (proxy.count <= 0) {
            throw new Error('after called too many times')
        }
        --proxy.count

        // after first error, rest are passed to err_cb
        if (err) {
            bail = true
            callback(err)
            // future error callbacks will go to error handler
            callback = err_cb
        } else if (proxy.count === 0 && !bail) {
            callback(null, result)
        }
    }
}

function noop() {}


/***/ }),

/***/ "./node_modules/arraybuffer.slice/index.js":
/*!*************************************************!*\
  !*** ./node_modules/arraybuffer.slice/index.js ***!
  \*************************************************/
/*! no static exports found */
/*! ModuleConcatenation bailout: Module is not an ECMAScript module */
/***/ (function(module, exports) {

/**
 * An abstraction for slicing an arraybuffer even when
 * ArrayBuffer.prototype.slice is not supported
 *
 * @api public
 */

module.exports = function(arraybuffer, start, end) {
  var bytes = arraybuffer.byteLength;
  start = start || 0;
  end = end || bytes;

  if (arraybuffer.slice) { return arraybuffer.slice(start, end); }

  if (start < 0) { start += bytes; }
  if (end < 0) { end += bytes; }
  if (end > bytes) { end = bytes; }

  if (start >= bytes || start >= end || bytes === 0) {
    return new ArrayBuffer(0);
  }

  var abv = new Uint8Array(arraybuffer);
  var result = new Uint8Array(end - start);
  for (var i = start, ii = 0; i < end; i++, ii++) {
    result[ii] = abv[i];
  }
  return result.buffer;
};


/***/ }),

/***/ "./node_modules/backo2/index.js":
/*!**************************************!*\
  !*** ./node_modules/backo2/index.js ***!
  \**************************************/
/*! no static exports found */
/*! ModuleConcatenation bailout: Module is not an ECMAScript module */
/***/ (function(module, exports) {


/**
 * Expose `Backoff`.
 */

module.exports = Backoff;

/**
 * Initialize backoff timer with `opts`.
 *
 * - `min` initial timeout in milliseconds [100]
 * - `max` max timeout [10000]
 * - `jitter` [0]
 * - `factor` [2]
 *
 * @param {Object} opts
 * @api public
 */

function Backoff(opts) {
  opts = opts || {};
  this.ms = opts.min || 100;
  this.max = opts.max || 10000;
  this.factor = opts.factor || 2;
  this.jitter = opts.jitter > 0 && opts.jitter <= 1 ? opts.jitter : 0;
  this.attempts = 0;
}

/**
 * Return the backoff duration.
 *
 * @return {Number}
 * @api public
 */

Backoff.prototype.duration = function(){
  var ms = this.ms * Math.pow(this.factor, this.attempts++);
  if (this.jitter) {
    var rand =  Math.random();
    var deviation = Math.floor(rand * this.jitter * ms);
    ms = (Math.floor(rand * 10) & 1) == 0  ? ms - deviation : ms + deviation;
  }
  return Math.min(ms, this.max) | 0;
};

/**
 * Reset the number of attempts.
 *
 * @api public
 */

Backoff.prototype.reset = function(){
  this.attempts = 0;
};

/**
 * Set the minimum duration
 *
 * @api public
 */

Backoff.prototype.setMin = function(min){
  this.ms = min;
};

/**
 * Set the maximum duration
 *
 * @api public
 */

Backoff.prototype.setMax = function(max){
  this.max = max;
};

/**
 * Set the jitter
 *
 * @api public
 */

Backoff.prototype.setJitter = function(jitter){
  this.jitter = jitter;
};



/***/ }),

/***/ "./node_modules/base64-arraybuffer/lib/base64-arraybuffer.js":
/*!*******************************************************************!*\
  !*** ./node_modules/base64-arraybuffer/lib/base64-arraybuffer.js ***!
  \*******************************************************************/
/*! no static exports found */
/*! ModuleConcatenation bailout: Module is not an ECMAScript module */
/***/ (function(module, exports) {

/*
 * base64-arraybuffer
 * https://github.com/niklasvh/base64-arraybuffer
 *
 * Copyright (c) 2012 Niklas von Hertzen
 * Licensed under the MIT license.
 */
(function(){
  "use strict";

  var chars = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";

  // Use a lookup table to find the index.
  var lookup = new Uint8Array(256);
  for (var i = 0; i < chars.length; i++) {
    lookup[chars.charCodeAt(i)] = i;
  }

  exports.encode = function(arraybuffer) {
    var bytes = new Uint8Array(arraybuffer),
    i, len = bytes.length, base64 = "";

    for (i = 0; i < len; i+=3) {
      base64 += chars[bytes[i] >> 2];
      base64 += chars[((bytes[i] & 3) << 4) | (bytes[i + 1] >> 4)];
      base64 += chars[((bytes[i + 1] & 15) << 2) | (bytes[i + 2] >> 6)];
      base64 += chars[bytes[i + 2] & 63];
    }

    if ((len % 3) === 2) {
      base64 = base64.substring(0, base64.length - 1) + "=";
    } else if (len % 3 === 1) {
      base64 = base64.substring(0, base64.length - 2) + "==";
    }

    return base64;
  };

  exports.decode =  function(base64) {
    var bufferLength = base64.length * 0.75,
    len = base64.length, i, p = 0,
    encoded1, encoded2, encoded3, encoded4;

    if (base64[base64.length - 1] === "=") {
      bufferLength--;
      if (base64[base64.length - 2] === "=") {
        bufferLength--;
      }
    }

    var arraybuffer = new ArrayBuffer(bufferLength),
    bytes = new Uint8Array(arraybuffer);

    for (i = 0; i < len; i+=4) {
      encoded1 = lookup[base64.charCodeAt(i)];
      encoded2 = lookup[base64.charCodeAt(i+1)];
      encoded3 = lookup[base64.charCodeAt(i+2)];
      encoded4 = lookup[base64.charCodeAt(i+3)];

      bytes[p++] = (encoded1 << 2) | (encoded2 >> 4);
      bytes[p++] = ((encoded2 & 15) << 4) | (encoded3 >> 2);
      bytes[p++] = ((encoded3 & 3) << 6) | (encoded4 & 63);
    }

    return arraybuffer;
  };
})();


/***/ }),

/***/ "./node_modules/base64-js/index.js":
/*!*****************************************!*\
  !*** ./node_modules/base64-js/index.js ***!
  \*****************************************/
/*! no static exports found */
/*! ModuleConcatenation bailout: Module is not an ECMAScript module */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


exports.byteLength = byteLength
exports.toByteArray = toByteArray
exports.fromByteArray = fromByteArray

var lookup = []
var revLookup = []
var Arr = typeof Uint8Array !== 'undefined' ? Uint8Array : Array

var code = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/'
for (var i = 0, len = code.length; i < len; ++i) {
  lookup[i] = code[i]
  revLookup[code.charCodeAt(i)] = i
}

revLookup['-'.charCodeAt(0)] = 62
revLookup['_'.charCodeAt(0)] = 63

function placeHoldersCount (b64) {
  var len = b64.length
  if (len % 4 > 0) {
    throw new Error('Invalid string. Length must be a multiple of 4')
  }

  // the number of equal signs (place holders)
  // if there are two placeholders, than the two characters before it
  // represent one byte
  // if there is only one, then the three characters before it represent 2 bytes
  // this is just a cheap hack to not do indexOf twice
  return b64[len - 2] === '=' ? 2 : b64[len - 1] === '=' ? 1 : 0
}

function byteLength (b64) {
  // base64 is 4/3 + up to two characters of the original data
  return (b64.length * 3 / 4) - placeHoldersCount(b64)
}

function toByteArray (b64) {
  var i, l, tmp, placeHolders, arr
  var len = b64.length
  placeHolders = placeHoldersCount(b64)

  arr = new Arr((len * 3 / 4) - placeHolders)

  // if there are placeholders, only get up to the last complete 4 chars
  l = placeHolders > 0 ? len - 4 : len

  var L = 0

  for (i = 0; i < l; i += 4) {
    tmp = (revLookup[b64.charCodeAt(i)] << 18) | (revLookup[b64.charCodeAt(i + 1)] << 12) | (revLookup[b64.charCodeAt(i + 2)] << 6) | revLookup[b64.charCodeAt(i + 3)]
    arr[L++] = (tmp >> 16) & 0xFF
    arr[L++] = (tmp >> 8) & 0xFF
    arr[L++] = tmp & 0xFF
  }

  if (placeHolders === 2) {
    tmp = (revLookup[b64.charCodeAt(i)] << 2) | (revLookup[b64.charCodeAt(i + 1)] >> 4)
    arr[L++] = tmp & 0xFF
  } else if (placeHolders === 1) {
    tmp = (revLookup[b64.charCodeAt(i)] << 10) | (revLookup[b64.charCodeAt(i + 1)] << 4) | (revLookup[b64.charCodeAt(i + 2)] >> 2)
    arr[L++] = (tmp >> 8) & 0xFF
    arr[L++] = tmp & 0xFF
  }

  return arr
}

function tripletToBase64 (num) {
  return lookup[num >> 18 & 0x3F] + lookup[num >> 12 & 0x3F] + lookup[num >> 6 & 0x3F] + lookup[num & 0x3F]
}

function encodeChunk (uint8, start, end) {
  var tmp
  var output = []
  for (var i = start; i < end; i += 3) {
    tmp = (uint8[i] << 16) + (uint8[i + 1] << 8) + (uint8[i + 2])
    output.push(tripletToBase64(tmp))
  }
  return output.join('')
}

function fromByteArray (uint8) {
  var tmp
  var len = uint8.length
  var extraBytes = len % 3 // if we have 1 byte left, pad 2 bytes
  var output = ''
  var parts = []
  var maxChunkLength = 16383 // must be multiple of 3

  // go through the array every three bytes, we'll deal with trailing stuff later
  for (var i = 0, len2 = len - extraBytes; i < len2; i += maxChunkLength) {
    parts.push(encodeChunk(uint8, i, (i + maxChunkLength) > len2 ? len2 : (i + maxChunkLength)))
  }

  // pad the end with zeros, but make sure to not forget the extra bytes
  if (extraBytes === 1) {
    tmp = uint8[len - 1]
    output += lookup[tmp >> 2]
    output += lookup[(tmp << 4) & 0x3F]
    output += '=='
  } else if (extraBytes === 2) {
    tmp = (uint8[len - 2] << 8) + (uint8[len - 1])
    output += lookup[tmp >> 10]
    output += lookup[(tmp >> 4) & 0x3F]
    output += lookup[(tmp << 2) & 0x3F]
    output += '='
  }

  parts.push(output)

  return parts.join('')
}


/***/ }),

/***/ "./node_modules/blob/index.js":
/*!************************************!*\
  !*** ./node_modules/blob/index.js ***!
  \************************************/
/*! no static exports found */
/*! ModuleConcatenation bailout: Module is not an ECMAScript module */
/***/ (function(module, exports, __webpack_require__) {

/* WEBPACK VAR INJECTION */(function(global) {/**
 * Create a blob builder even when vendor prefixes exist
 */

var BlobBuilder = global.BlobBuilder
  || global.WebKitBlobBuilder
  || global.MSBlobBuilder
  || global.MozBlobBuilder;

/**
 * Check if Blob constructor is supported
 */

var blobSupported = (function() {
  try {
    var a = new Blob(['hi']);
    return a.size === 2;
  } catch(e) {
    return false;
  }
})();

/**
 * Check if Blob constructor supports ArrayBufferViews
 * Fails in Safari 6, so we need to map to ArrayBuffers there.
 */

var blobSupportsArrayBufferView = blobSupported && (function() {
  try {
    var b = new Blob([new Uint8Array([1,2])]);
    return b.size === 2;
  } catch(e) {
    return false;
  }
})();

/**
 * Check if BlobBuilder is supported
 */

var blobBuilderSupported = BlobBuilder
  && BlobBuilder.prototype.append
  && BlobBuilder.prototype.getBlob;

/**
 * Helper function that maps ArrayBufferViews to ArrayBuffers
 * Used by BlobBuilder constructor and old browsers that didn't
 * support it in the Blob constructor.
 */

function mapArrayBufferViews(ary) {
  for (var i = 0; i < ary.length; i++) {
    var chunk = ary[i];
    if (chunk.buffer instanceof ArrayBuffer) {
      var buf = chunk.buffer;

      // if this is a subarray, make a copy so we only
      // include the subarray region from the underlying buffer
      if (chunk.byteLength !== buf.byteLength) {
        var copy = new Uint8Array(chunk.byteLength);
        copy.set(new Uint8Array(buf, chunk.byteOffset, chunk.byteLength));
        buf = copy.buffer;
      }

      ary[i] = buf;
    }
  }
}

function BlobBuilderConstructor(ary, options) {
  options = options || {};

  var bb = new BlobBuilder();
  mapArrayBufferViews(ary);

  for (var i = 0; i < ary.length; i++) {
    bb.append(ary[i]);
  }

  return (options.type) ? bb.getBlob(options.type) : bb.getBlob();
};

function BlobConstructor(ary, options) {
  mapArrayBufferViews(ary);
  return new Blob(ary, options || {});
};

module.exports = (function() {
  if (blobSupported) {
    return blobSupportsArrayBufferView ? global.Blob : BlobConstructor;
  } else if (blobBuilderSupported) {
    return BlobBuilderConstructor;
  } else {
    return undefined;
  }
})();

/* WEBPACK VAR INJECTION */}.call(this, __webpack_require__(/*! ./../webpack/buildin/global.js */ "./node_modules/webpack/buildin/global.js")))

/***/ }),

/***/ "./node_modules/component-bind/index.js":
/*!**********************************************!*\
  !*** ./node_modules/component-bind/index.js ***!
  \**********************************************/
/*! no static exports found */
/*! ModuleConcatenation bailout: Module is not an ECMAScript module */
/***/ (function(module, exports) {

/**
 * Slice reference.
 */

var slice = [].slice;

/**
 * Bind `obj` to `fn`.
 *
 * @param {Object} obj
 * @param {Function|String} fn or string
 * @return {Function}
 * @api public
 */

module.exports = function(obj, fn){
  if ('string' == typeof fn) fn = obj[fn];
  if ('function' != typeof fn) throw new Error('bind() requires a function');
  var args = slice.call(arguments, 2);
  return function(){
    return fn.apply(obj, args.concat(slice.call(arguments)));
  }
};


/***/ }),

/***/ "./node_modules/component-emitter/index.js":
/*!*************************************************!*\
  !*** ./node_modules/component-emitter/index.js ***!
  \*************************************************/
/*! no static exports found */
/*! ModuleConcatenation bailout: Module is not an ECMAScript module */
/***/ (function(module, exports, __webpack_require__) {


/**
 * Expose `Emitter`.
 */

if (true) {
  module.exports = Emitter;
}

/**
 * Initialize a new `Emitter`.
 *
 * @api public
 */

function Emitter(obj) {
  if (obj) return mixin(obj);
};

/**
 * Mixin the emitter properties.
 *
 * @param {Object} obj
 * @return {Object}
 * @api private
 */

function mixin(obj) {
  for (var key in Emitter.prototype) {
    obj[key] = Emitter.prototype[key];
  }
  return obj;
}

/**
 * Listen on the given `event` with `fn`.
 *
 * @param {String} event
 * @param {Function} fn
 * @return {Emitter}
 * @api public
 */

Emitter.prototype.on =
Emitter.prototype.addEventListener = function(event, fn){
  this._callbacks = this._callbacks || {};
  (this._callbacks['$' + event] = this._callbacks['$' + event] || [])
    .push(fn);
  return this;
};

/**
 * Adds an `event` listener that will be invoked a single
 * time then automatically removed.
 *
 * @param {String} event
 * @param {Function} fn
 * @return {Emitter}
 * @api public
 */

Emitter.prototype.once = function(event, fn){
  function on() {
    this.off(event, on);
    fn.apply(this, arguments);
  }

  on.fn = fn;
  this.on(event, on);
  return this;
};

/**
 * Remove the given callback for `event` or all
 * registered callbacks.
 *
 * @param {String} event
 * @param {Function} fn
 * @return {Emitter}
 * @api public
 */

Emitter.prototype.off =
Emitter.prototype.removeListener =
Emitter.prototype.removeAllListeners =
Emitter.prototype.removeEventListener = function(event, fn){
  this._callbacks = this._callbacks || {};

  // all
  if (0 == arguments.length) {
    this._callbacks = {};
    return this;
  }

  // specific event
  var callbacks = this._callbacks['$' + event];
  if (!callbacks) return this;

  // remove all handlers
  if (1 == arguments.length) {
    delete this._callbacks['$' + event];
    return this;
  }

  // remove specific handler
  var cb;
  for (var i = 0; i < callbacks.length; i++) {
    cb = callbacks[i];
    if (cb === fn || cb.fn === fn) {
      callbacks.splice(i, 1);
      break;
    }
  }
  return this;
};

/**
 * Emit `event` with the given args.
 *
 * @param {String} event
 * @param {Mixed} ...
 * @return {Emitter}
 */

Emitter.prototype.emit = function(event){
  this._callbacks = this._callbacks || {};
  var args = [].slice.call(arguments, 1)
    , callbacks = this._callbacks['$' + event];

  if (callbacks) {
    callbacks = callbacks.slice(0);
    for (var i = 0, len = callbacks.length; i < len; ++i) {
      callbacks[i].apply(this, args);
    }
  }

  return this;
};

/**
 * Return array of callbacks for `event`.
 *
 * @param {String} event
 * @return {Array}
 * @api public
 */

Emitter.prototype.listeners = function(event){
  this._callbacks = this._callbacks || {};
  return this._callbacks['$' + event] || [];
};

/**
 * Check if this emitter has `event` handlers.
 *
 * @param {String} event
 * @return {Boolean}
 * @api public
 */

Emitter.prototype.hasListeners = function(event){
  return !! this.listeners(event).length;
};


/***/ }),

/***/ "./node_modules/component-inherit/index.js":
/*!*************************************************!*\
  !*** ./node_modules/component-inherit/index.js ***!
  \*************************************************/
/*! no static exports found */
/*! ModuleConcatenation bailout: Module is not an ECMAScript module */
/***/ (function(module, exports) {


module.exports = function(a, b){
  var fn = function(){};
  fn.prototype = b.prototype;
  a.prototype = new fn;
  a.prototype.constructor = a;
};

/***/ }),

/***/ "./node_modules/decode-uri-component/index.js":
/*!****************************************************!*\
  !*** ./node_modules/decode-uri-component/index.js ***!
  \****************************************************/
/*! no static exports found */
/*! ModuleConcatenation bailout: Module is not an ECMAScript module */
/***/ (function(module, exports, __webpack_require__) {

"use strict";

var token = '%[a-f0-9]{2}';
var singleMatcher = new RegExp(token, 'gi');
var multiMatcher = new RegExp('(' + token + ')+', 'gi');

function decodeComponents(components, split) {
	try {
		// Try to decode the entire string first
		return decodeURIComponent(components.join(''));
	} catch (err) {
		// Do nothing
	}

	if (components.length === 1) {
		return components;
	}

	split = split || 1;

	// Split the array in 2 parts
	var left = components.slice(0, split);
	var right = components.slice(split);

	return Array.prototype.concat.call([], decodeComponents(left), decodeComponents(right));
}

function decode(input) {
	try {
		return decodeURIComponent(input);
	} catch (err) {
		var tokens = input.match(singleMatcher);

		for (var i = 1; i < tokens.length; i++) {
			input = decodeComponents(tokens, i).join('');

			tokens = input.match(singleMatcher);
		}

		return input;
	}
}

function customDecodeURIComponent(input) {
	// Keep track of all the replacements and prefill the map with the `BOM`
	var replaceMap = {
		'%FE%FF': '\uFFFD\uFFFD',
		'%FF%FE': '\uFFFD\uFFFD'
	};

	var match = multiMatcher.exec(input);
	while (match) {
		try {
			// Decode as big chunks as possible
			replaceMap[match[0]] = decodeURIComponent(match[0]);
		} catch (err) {
			var result = decode(match[0]);

			if (result !== match[0]) {
				replaceMap[match[0]] = result;
			}
		}

		match = multiMatcher.exec(input);
	}

	// Add `%C2` at the end of the map to make sure it does not replace the combinator before everything else
	replaceMap['%C2'] = '\uFFFD';

	var entries = Object.keys(replaceMap);

	for (var i = 0; i < entries.length; i++) {
		// Replace all decoded components
		var key = entries[i];
		input = input.replace(new RegExp(key, 'g'), replaceMap[key]);
	}

	return input;
}

module.exports = function (encodedURI) {
	if (typeof encodedURI !== 'string') {
		throw new TypeError('Expected `encodedURI` to be of type `string`, got `' + typeof encodedURI + '`');
	}

	try {
		encodedURI = encodedURI.replace(/\+/g, ' ');

		// Try the built in decoder first
		return decodeURIComponent(encodedURI);
	} catch (err) {
		// Fallback to a more advanced decoder
		return customDecodeURIComponent(encodedURI);
	}
};


/***/ }),

/***/ "./node_modules/detect-browser/index.js":
/*!**********************************************!*\
  !*** ./node_modules/detect-browser/index.js ***!
  \**********************************************/
/*! no static exports found */
/*! ModuleConcatenation bailout: Module is not an ECMAScript module */
/***/ (function(module, exports, __webpack_require__) {

"use strict";
/* WEBPACK VAR INJECTION */(function(process) {
Object.defineProperty(exports, "__esModule", { value: true });
var BrowserInfo = /** @class */ (function () {
    function BrowserInfo(name, version, os) {
        this.name = name;
        this.version = version;
        this.os = os;
    }
    return BrowserInfo;
}());
exports.BrowserInfo = BrowserInfo;
var NodeInfo = /** @class */ (function () {
    function NodeInfo(version) {
        this.version = version;
        this.name = 'node';
        this.os = process.platform;
    }
    return NodeInfo;
}());
exports.NodeInfo = NodeInfo;
var BotInfo = /** @class */ (function () {
    function BotInfo() {
        this.bot = true; // NOTE: deprecated test name instead
        this.name = 'bot';
        this.version = null;
        this.os = null;
    }
    return BotInfo;
}());
exports.BotInfo = BotInfo;
// tslint:disable-next-line:max-line-length
var SEARCHBOX_UA_REGEX = /alexa|bot|crawl(er|ing)|facebookexternalhit|feedburner|google web preview|nagios|postrank|pingdom|slurp|spider|yahoo!|yandex/;
var SEARCHBOT_OS_REGEX = /(nuhk)|(Googlebot)|(Yammybot)|(Openbot)|(Slurp)|(MSNBot)|(Ask Jeeves\/Teoma)|(ia_archiver)/;
var REQUIRED_VERSION_PARTS = 3;
var userAgentRules = [
    ['aol', /AOLShield\/([0-9\._]+)/],
    ['edge', /Edge\/([0-9\._]+)/],
    ['yandexbrowser', /YaBrowser\/([0-9\._]+)/],
    ['vivaldi', /Vivaldi\/([0-9\.]+)/],
    ['kakaotalk', /KAKAOTALK\s([0-9\.]+)/],
    ['samsung', /SamsungBrowser\/([0-9\.]+)/],
    ['silk', /\bSilk\/([0-9._-]+)\b/],
    ['chrome', /(?!Chrom.*OPR)Chrom(?:e|ium)\/([0-9\.]+)(:?\s|$)/],
    ['phantomjs', /PhantomJS\/([0-9\.]+)(:?\s|$)/],
    ['crios', /CriOS\/([0-9\.]+)(:?\s|$)/],
    ['firefox', /Firefox\/([0-9\.]+)(?:\s|$)/],
    ['fxios', /FxiOS\/([0-9\.]+)/],
    ['opera-mini', /Opera Mini.*Version\/([0-9\.]+)/],
    ['opera', /Opera\/([0-9\.]+)(?:\s|$)/],
    ['opera', /OPR\/([0-9\.]+)(:?\s|$)$/],
    ['ie', /Trident\/7\.0.*rv\:([0-9\.]+).*\).*Gecko$/],
    ['ie', /MSIE\s([0-9\.]+);.*Trident\/[4-7].0/],
    ['ie', /MSIE\s(7\.0)/],
    ['bb10', /BB10;\sTouch.*Version\/([0-9\.]+)/],
    ['android', /Android\s([0-9\.]+)/],
    ['ios', /Version\/([0-9\._]+).*Mobile.*Safari.*/],
    ['safari', /Version\/([0-9\._]+).*Safari/],
    ['facebook', /FBAV\/([0-9\.]+)/],
    ['instagram', /Instagram\s([0-9\.]+)/],
    ['ios-webview', /AppleWebKit\/([0-9\.]+).*Mobile/],
    ['ios-webview', /AppleWebKit\/([0-9\.]+).*Gecko\)$/],
    ['searchbot', SEARCHBOX_UA_REGEX],
];
var operatingSystemRules = [
    ['iOS', /iP(hone|od|ad)/],
    ['Android OS', /Android/],
    ['BlackBerry OS', /BlackBerry|BB10/],
    ['Windows Mobile', /IEMobile/],
    ['Amazon OS', /Kindle/],
    ['Windows 3.11', /Win16/],
    ['Windows 95', /(Windows 95)|(Win95)|(Windows_95)/],
    ['Windows 98', /(Windows 98)|(Win98)/],
    ['Windows 2000', /(Windows NT 5.0)|(Windows 2000)/],
    ['Windows XP', /(Windows NT 5.1)|(Windows XP)/],
    ['Windows Server 2003', /(Windows NT 5.2)/],
    ['Windows Vista', /(Windows NT 6.0)/],
    ['Windows 7', /(Windows NT 6.1)/],
    ['Windows 8', /(Windows NT 6.2)/],
    ['Windows 8.1', /(Windows NT 6.3)/],
    ['Windows 10', /(Windows NT 10.0)/],
    ['Windows ME', /Windows ME/],
    ['Open BSD', /OpenBSD/],
    ['Sun OS', /SunOS/],
    ['Chrome OS', /CrOS/],
    ['Linux', /(Linux)|(X11)/],
    ['Mac OS', /(Mac_PowerPC)|(Macintosh)/],
    ['QNX', /QNX/],
    ['BeOS', /BeOS/],
    ['OS/2', /OS\/2/],
    ['Search Bot', SEARCHBOT_OS_REGEX],
];
function detect() {
    if (typeof navigator !== 'undefined') {
        return parseUserAgent(navigator.userAgent);
    }
    return getNodeVersion();
}
exports.detect = detect;
function parseUserAgent(ua) {
    // opted for using reduce here rather than Array#first with a regex.test call
    // this is primarily because using the reduce we only perform the regex
    // execution once rather than once for the test and for the exec again below
    // probably something that needs to be benchmarked though
    var matchedRule = ua !== '' &&
        userAgentRules.reduce(function (matched, _a) {
            var browser = _a[0], regex = _a[1];
            if (matched) {
                return matched;
            }
            var uaMatch = regex.exec(ua);
            return !!uaMatch && [browser, uaMatch];
        }, false);
    if (!matchedRule) {
        return null;
    }
    var name = matchedRule[0], match = matchedRule[1];
    if (name === 'searchbot') {
        return new BotInfo();
    }
    var versionParts = match[1] && match[1].split(/[._]/).slice(0, 3);
    if (versionParts) {
        if (versionParts.length < REQUIRED_VERSION_PARTS) {
            versionParts = versionParts.concat(createVersionParts(REQUIRED_VERSION_PARTS - versionParts.length));
        }
    }
    else {
        versionParts = [];
    }
    return new BrowserInfo(name, versionParts.join('.'), detectOS(ua));
}
exports.parseUserAgent = parseUserAgent;
function detectOS(ua) {
    for (var ii = 0, count = operatingSystemRules.length; ii < count; ii++) {
        var _a = operatingSystemRules[ii], os = _a[0], regex = _a[1];
        var match = regex.test(ua);
        if (match) {
            return os;
        }
    }
    return null;
}
exports.detectOS = detectOS;
function getNodeVersion() {
    var isNode = typeof process !== 'undefined' && process.version;
    return isNode ? new NodeInfo(process.version.slice(1)) : null;
}
exports.getNodeVersion = getNodeVersion;
function createVersionParts(count) {
    var output = [];
    for (var ii = 0; ii < count; ii++) {
        output.push('0');
    }
    return output;
}

/* WEBPACK VAR INJECTION */}.call(this, __webpack_require__(/*! ./../process/browser.js */ "./node_modules/process/browser.js")))

/***/ }),

/***/ "./node_modules/engine.io-parser/lib/browser.js":
/*!******************************************************!*\
  !*** ./node_modules/engine.io-parser/lib/browser.js ***!
  \******************************************************/
/*! no static exports found */
/*! ModuleConcatenation bailout: Module is not an ECMAScript module */
/***/ (function(module, exports, __webpack_require__) {

/* WEBPACK VAR INJECTION */(function(global) {/**
 * Module dependencies.
 */

var keys = __webpack_require__(/*! ./keys */ "./node_modules/engine.io-parser/lib/keys.js");
var hasBinary = __webpack_require__(/*! has-binary2 */ "./node_modules/has-binary2/index.js");
var sliceBuffer = __webpack_require__(/*! arraybuffer.slice */ "./node_modules/arraybuffer.slice/index.js");
var after = __webpack_require__(/*! after */ "./node_modules/after/index.js");
var utf8 = __webpack_require__(/*! ./utf8 */ "./node_modules/engine.io-parser/lib/utf8.js");

var base64encoder;
if (global && global.ArrayBuffer) {
  base64encoder = __webpack_require__(/*! base64-arraybuffer */ "./node_modules/base64-arraybuffer/lib/base64-arraybuffer.js");
}

/**
 * Check if we are running an android browser. That requires us to use
 * ArrayBuffer with polling transports...
 *
 * http://ghinda.net/jpeg-blob-ajax-android/
 */

var isAndroid = typeof navigator !== 'undefined' && /Android/i.test(navigator.userAgent);

/**
 * Check if we are running in PhantomJS.
 * Uploading a Blob with PhantomJS does not work correctly, as reported here:
 * https://github.com/ariya/phantomjs/issues/11395
 * @type boolean
 */
var isPhantomJS = typeof navigator !== 'undefined' && /PhantomJS/i.test(navigator.userAgent);

/**
 * When true, avoids using Blobs to encode payloads.
 * @type boolean
 */
var dontSendBlobs = isAndroid || isPhantomJS;

/**
 * Current protocol version.
 */

exports.protocol = 3;

/**
 * Packet types.
 */

var packets = exports.packets = {
    open:     0    // non-ws
  , close:    1    // non-ws
  , ping:     2
  , pong:     3
  , message:  4
  , upgrade:  5
  , noop:     6
};

var packetslist = keys(packets);

/**
 * Premade error packet.
 */

var err = { type: 'error', data: 'parser error' };

/**
 * Create a blob api even for blob builder when vendor prefixes exist
 */

var Blob = __webpack_require__(/*! blob */ "./node_modules/blob/index.js");

/**
 * Encodes a packet.
 *
 *     <packet type id> [ <data> ]
 *
 * Example:
 *
 *     5hello world
 *     3
 *     4
 *
 * Binary is encoded in an identical principle
 *
 * @api private
 */

exports.encodePacket = function (packet, supportsBinary, utf8encode, callback) {
  if (typeof supportsBinary === 'function') {
    callback = supportsBinary;
    supportsBinary = false;
  }

  if (typeof utf8encode === 'function') {
    callback = utf8encode;
    utf8encode = null;
  }

  var data = (packet.data === undefined)
    ? undefined
    : packet.data.buffer || packet.data;

  if (global.ArrayBuffer && data instanceof ArrayBuffer) {
    return encodeArrayBuffer(packet, supportsBinary, callback);
  } else if (Blob && data instanceof global.Blob) {
    return encodeBlob(packet, supportsBinary, callback);
  }

  // might be an object with { base64: true, data: dataAsBase64String }
  if (data && data.base64) {
    return encodeBase64Object(packet, callback);
  }

  // Sending data as a utf-8 string
  var encoded = packets[packet.type];

  // data fragment is optional
  if (undefined !== packet.data) {
    encoded += utf8encode ? utf8.encode(String(packet.data), { strict: false }) : String(packet.data);
  }

  return callback('' + encoded);

};

function encodeBase64Object(packet, callback) {
  // packet data is an object { base64: true, data: dataAsBase64String }
  var message = 'b' + exports.packets[packet.type] + packet.data.data;
  return callback(message);
}

/**
 * Encode packet helpers for binary types
 */

function encodeArrayBuffer(packet, supportsBinary, callback) {
  if (!supportsBinary) {
    return exports.encodeBase64Packet(packet, callback);
  }

  var data = packet.data;
  var contentArray = new Uint8Array(data);
  var resultBuffer = new Uint8Array(1 + data.byteLength);

  resultBuffer[0] = packets[packet.type];
  for (var i = 0; i < contentArray.length; i++) {
    resultBuffer[i+1] = contentArray[i];
  }

  return callback(resultBuffer.buffer);
}

function encodeBlobAsArrayBuffer(packet, supportsBinary, callback) {
  if (!supportsBinary) {
    return exports.encodeBase64Packet(packet, callback);
  }

  var fr = new FileReader();
  fr.onload = function() {
    packet.data = fr.result;
    exports.encodePacket(packet, supportsBinary, true, callback);
  };
  return fr.readAsArrayBuffer(packet.data);
}

function encodeBlob(packet, supportsBinary, callback) {
  if (!supportsBinary) {
    return exports.encodeBase64Packet(packet, callback);
  }

  if (dontSendBlobs) {
    return encodeBlobAsArrayBuffer(packet, supportsBinary, callback);
  }

  var length = new Uint8Array(1);
  length[0] = packets[packet.type];
  var blob = new Blob([length.buffer, packet.data]);

  return callback(blob);
}

/**
 * Encodes a packet with binary data in a base64 string
 *
 * @param {Object} packet, has `type` and `data`
 * @return {String} base64 encoded message
 */

exports.encodeBase64Packet = function(packet, callback) {
  var message = 'b' + exports.packets[packet.type];
  if (Blob && packet.data instanceof global.Blob) {
    var fr = new FileReader();
    fr.onload = function() {
      var b64 = fr.result.split(',')[1];
      callback(message + b64);
    };
    return fr.readAsDataURL(packet.data);
  }

  var b64data;
  try {
    b64data = String.fromCharCode.apply(null, new Uint8Array(packet.data));
  } catch (e) {
    // iPhone Safari doesn't let you apply with typed arrays
    var typed = new Uint8Array(packet.data);
    var basic = new Array(typed.length);
    for (var i = 0; i < typed.length; i++) {
      basic[i] = typed[i];
    }
    b64data = String.fromCharCode.apply(null, basic);
  }
  message += global.btoa(b64data);
  return callback(message);
};

/**
 * Decodes a packet. Changes format to Blob if requested.
 *
 * @return {Object} with `type` and `data` (if any)
 * @api private
 */

exports.decodePacket = function (data, binaryType, utf8decode) {
  if (data === undefined) {
    return err;
  }
  // String data
  if (typeof data === 'string') {
    if (data.charAt(0) === 'b') {
      return exports.decodeBase64Packet(data.substr(1), binaryType);
    }

    if (utf8decode) {
      data = tryDecode(data);
      if (data === false) {
        return err;
      }
    }
    var type = data.charAt(0);

    if (Number(type) != type || !packetslist[type]) {
      return err;
    }

    if (data.length > 1) {
      return { type: packetslist[type], data: data.substring(1) };
    } else {
      return { type: packetslist[type] };
    }
  }

  var asArray = new Uint8Array(data);
  var type = asArray[0];
  var rest = sliceBuffer(data, 1);
  if (Blob && binaryType === 'blob') {
    rest = new Blob([rest]);
  }
  return { type: packetslist[type], data: rest };
};

function tryDecode(data) {
  try {
    data = utf8.decode(data, { strict: false });
  } catch (e) {
    return false;
  }
  return data;
}

/**
 * Decodes a packet encoded in a base64 string
 *
 * @param {String} base64 encoded message
 * @return {Object} with `type` and `data` (if any)
 */

exports.decodeBase64Packet = function(msg, binaryType) {
  var type = packetslist[msg.charAt(0)];
  if (!base64encoder) {
    return { type: type, data: { base64: true, data: msg.substr(1) } };
  }

  var data = base64encoder.decode(msg.substr(1));

  if (binaryType === 'blob' && Blob) {
    data = new Blob([data]);
  }

  return { type: type, data: data };
};

/**
 * Encodes multiple messages (payload).
 *
 *     <length>:data
 *
 * Example:
 *
 *     11:hello world2:hi
 *
 * If any contents are binary, they will be encoded as base64 strings. Base64
 * encoded strings are marked with a b before the length specifier
 *
 * @param {Array} packets
 * @api private
 */

exports.encodePayload = function (packets, supportsBinary, callback) {
  if (typeof supportsBinary === 'function') {
    callback = supportsBinary;
    supportsBinary = null;
  }

  var isBinary = hasBinary(packets);

  if (supportsBinary && isBinary) {
    if (Blob && !dontSendBlobs) {
      return exports.encodePayloadAsBlob(packets, callback);
    }

    return exports.encodePayloadAsArrayBuffer(packets, callback);
  }

  if (!packets.length) {
    return callback('0:');
  }

  function setLengthHeader(message) {
    return message.length + ':' + message;
  }

  function encodeOne(packet, doneCallback) {
    exports.encodePacket(packet, !isBinary ? false : supportsBinary, false, function(message) {
      doneCallback(null, setLengthHeader(message));
    });
  }

  map(packets, encodeOne, function(err, results) {
    return callback(results.join(''));
  });
};

/**
 * Async array map using after
 */

function map(ary, each, done) {
  var result = new Array(ary.length);
  var next = after(ary.length, done);

  var eachWithIndex = function(i, el, cb) {
    each(el, function(error, msg) {
      result[i] = msg;
      cb(error, result);
    });
  };

  for (var i = 0; i < ary.length; i++) {
    eachWithIndex(i, ary[i], next);
  }
}

/*
 * Decodes data when a payload is maybe expected. Possible binary contents are
 * decoded from their base64 representation
 *
 * @param {String} data, callback method
 * @api public
 */

exports.decodePayload = function (data, binaryType, callback) {
  if (typeof data !== 'string') {
    return exports.decodePayloadAsBinary(data, binaryType, callback);
  }

  if (typeof binaryType === 'function') {
    callback = binaryType;
    binaryType = null;
  }

  var packet;
  if (data === '') {
    // parser error - ignoring payload
    return callback(err, 0, 1);
  }

  var length = '', n, msg;

  for (var i = 0, l = data.length; i < l; i++) {
    var chr = data.charAt(i);

    if (chr !== ':') {
      length += chr;
      continue;
    }

    if (length === '' || (length != (n = Number(length)))) {
      // parser error - ignoring payload
      return callback(err, 0, 1);
    }

    msg = data.substr(i + 1, n);

    if (length != msg.length) {
      // parser error - ignoring payload
      return callback(err, 0, 1);
    }

    if (msg.length) {
      packet = exports.decodePacket(msg, binaryType, false);

      if (err.type === packet.type && err.data === packet.data) {
        // parser error in individual packet - ignoring payload
        return callback(err, 0, 1);
      }

      var ret = callback(packet, i + n, l);
      if (false === ret) return;
    }

    // advance cursor
    i += n;
    length = '';
  }

  if (length !== '') {
    // parser error - ignoring payload
    return callback(err, 0, 1);
  }

};

/**
 * Encodes multiple messages (payload) as binary.
 *
 * <1 = binary, 0 = string><number from 0-9><number from 0-9>[...]<number
 * 255><data>
 *
 * Example:
 * 1 3 255 1 2 3, if the binary contents are interpreted as 8 bit integers
 *
 * @param {Array} packets
 * @return {ArrayBuffer} encoded payload
 * @api private
 */

exports.encodePayloadAsArrayBuffer = function(packets, callback) {
  if (!packets.length) {
    return callback(new ArrayBuffer(0));
  }

  function encodeOne(packet, doneCallback) {
    exports.encodePacket(packet, true, true, function(data) {
      return doneCallback(null, data);
    });
  }

  map(packets, encodeOne, function(err, encodedPackets) {
    var totalLength = encodedPackets.reduce(function(acc, p) {
      var len;
      if (typeof p === 'string'){
        len = p.length;
      } else {
        len = p.byteLength;
      }
      return acc + len.toString().length + len + 2; // string/binary identifier + separator = 2
    }, 0);

    var resultArray = new Uint8Array(totalLength);

    var bufferIndex = 0;
    encodedPackets.forEach(function(p) {
      var isString = typeof p === 'string';
      var ab = p;
      if (isString) {
        var view = new Uint8Array(p.length);
        for (var i = 0; i < p.length; i++) {
          view[i] = p.charCodeAt(i);
        }
        ab = view.buffer;
      }

      if (isString) { // not true binary
        resultArray[bufferIndex++] = 0;
      } else { // true binary
        resultArray[bufferIndex++] = 1;
      }

      var lenStr = ab.byteLength.toString();
      for (var i = 0; i < lenStr.length; i++) {
        resultArray[bufferIndex++] = parseInt(lenStr[i]);
      }
      resultArray[bufferIndex++] = 255;

      var view = new Uint8Array(ab);
      for (var i = 0; i < view.length; i++) {
        resultArray[bufferIndex++] = view[i];
      }
    });

    return callback(resultArray.buffer);
  });
};

/**
 * Encode as Blob
 */

exports.encodePayloadAsBlob = function(packets, callback) {
  function encodeOne(packet, doneCallback) {
    exports.encodePacket(packet, true, true, function(encoded) {
      var binaryIdentifier = new Uint8Array(1);
      binaryIdentifier[0] = 1;
      if (typeof encoded === 'string') {
        var view = new Uint8Array(encoded.length);
        for (var i = 0; i < encoded.length; i++) {
          view[i] = encoded.charCodeAt(i);
        }
        encoded = view.buffer;
        binaryIdentifier[0] = 0;
      }

      var len = (encoded instanceof ArrayBuffer)
        ? encoded.byteLength
        : encoded.size;

      var lenStr = len.toString();
      var lengthAry = new Uint8Array(lenStr.length + 1);
      for (var i = 0; i < lenStr.length; i++) {
        lengthAry[i] = parseInt(lenStr[i]);
      }
      lengthAry[lenStr.length] = 255;

      if (Blob) {
        var blob = new Blob([binaryIdentifier.buffer, lengthAry.buffer, encoded]);
        doneCallback(null, blob);
      }
    });
  }

  map(packets, encodeOne, function(err, results) {
    return callback(new Blob(results));
  });
};

/*
 * Decodes data when a payload is maybe expected. Strings are decoded by
 * interpreting each byte as a key code for entries marked to start with 0. See
 * description of encodePayloadAsBinary
 *
 * @param {ArrayBuffer} data, callback method
 * @api public
 */

exports.decodePayloadAsBinary = function (data, binaryType, callback) {
  if (typeof binaryType === 'function') {
    callback = binaryType;
    binaryType = null;
  }

  var bufferTail = data;
  var buffers = [];

  while (bufferTail.byteLength > 0) {
    var tailArray = new Uint8Array(bufferTail);
    var isString = tailArray[0] === 0;
    var msgLength = '';

    for (var i = 1; ; i++) {
      if (tailArray[i] === 255) break;

      // 310 = char length of Number.MAX_VALUE
      if (msgLength.length > 310) {
        return callback(err, 0, 1);
      }

      msgLength += tailArray[i];
    }

    bufferTail = sliceBuffer(bufferTail, 2 + msgLength.length);
    msgLength = parseInt(msgLength);

    var msg = sliceBuffer(bufferTail, 0, msgLength);
    if (isString) {
      try {
        msg = String.fromCharCode.apply(null, new Uint8Array(msg));
      } catch (e) {
        // iPhone Safari doesn't let you apply to typed arrays
        var typed = new Uint8Array(msg);
        msg = '';
        for (var i = 0; i < typed.length; i++) {
          msg += String.fromCharCode(typed[i]);
        }
      }
    }

    buffers.push(msg);
    bufferTail = sliceBuffer(bufferTail, msgLength);
  }

  var total = buffers.length;
  buffers.forEach(function(buffer, i) {
    callback(exports.decodePacket(buffer, binaryType, true), i, total);
  });
};

/* WEBPACK VAR INJECTION */}.call(this, __webpack_require__(/*! ./../../webpack/buildin/global.js */ "./node_modules/webpack/buildin/global.js")))

/***/ }),

/***/ "./node_modules/engine.io-parser/lib/keys.js":
/*!***************************************************!*\
  !*** ./node_modules/engine.io-parser/lib/keys.js ***!
  \***************************************************/
/*! no static exports found */
/*! ModuleConcatenation bailout: Module is not an ECMAScript module */
/***/ (function(module, exports) {


/**
 * Gets the keys for an object.
 *
 * @return {Array} keys
 * @api private
 */

module.exports = Object.keys || function keys (obj){
  var arr = [];
  var has = Object.prototype.hasOwnProperty;

  for (var i in obj) {
    if (has.call(obj, i)) {
      arr.push(i);
    }
  }
  return arr;
};


/***/ }),

/***/ "./node_modules/engine.io-parser/lib/utf8.js":
/*!***************************************************!*\
  !*** ./node_modules/engine.io-parser/lib/utf8.js ***!
  \***************************************************/
/*! no static exports found */
/*! ModuleConcatenation bailout: Module is not an ECMAScript module */
/***/ (function(module, exports, __webpack_require__) {

/* WEBPACK VAR INJECTION */(function(module, global) {var __WEBPACK_AMD_DEFINE_RESULT__;/*! https://mths.be/utf8js v2.1.2 by @mathias */
;(function(root) {

	// Detect free variables `exports`
	var freeExports = typeof exports == 'object' && exports;

	// Detect free variable `module`
	var freeModule = typeof module == 'object' && module &&
		module.exports == freeExports && module;

	// Detect free variable `global`, from Node.js or Browserified code,
	// and use it as `root`
	var freeGlobal = typeof global == 'object' && global;
	if (freeGlobal.global === freeGlobal || freeGlobal.window === freeGlobal) {
		root = freeGlobal;
	}

	/*--------------------------------------------------------------------------*/

	var stringFromCharCode = String.fromCharCode;

	// Taken from https://mths.be/punycode
	function ucs2decode(string) {
		var output = [];
		var counter = 0;
		var length = string.length;
		var value;
		var extra;
		while (counter < length) {
			value = string.charCodeAt(counter++);
			if (value >= 0xD800 && value <= 0xDBFF && counter < length) {
				// high surrogate, and there is a next character
				extra = string.charCodeAt(counter++);
				if ((extra & 0xFC00) == 0xDC00) { // low surrogate
					output.push(((value & 0x3FF) << 10) + (extra & 0x3FF) + 0x10000);
				} else {
					// unmatched surrogate; only append this code unit, in case the next
					// code unit is the high surrogate of a surrogate pair
					output.push(value);
					counter--;
				}
			} else {
				output.push(value);
			}
		}
		return output;
	}

	// Taken from https://mths.be/punycode
	function ucs2encode(array) {
		var length = array.length;
		var index = -1;
		var value;
		var output = '';
		while (++index < length) {
			value = array[index];
			if (value > 0xFFFF) {
				value -= 0x10000;
				output += stringFromCharCode(value >>> 10 & 0x3FF | 0xD800);
				value = 0xDC00 | value & 0x3FF;
			}
			output += stringFromCharCode(value);
		}
		return output;
	}

	function checkScalarValue(codePoint, strict) {
		if (codePoint >= 0xD800 && codePoint <= 0xDFFF) {
			if (strict) {
				throw Error(
					'Lone surrogate U+' + codePoint.toString(16).toUpperCase() +
					' is not a scalar value'
				);
			}
			return false;
		}
		return true;
	}
	/*--------------------------------------------------------------------------*/

	function createByte(codePoint, shift) {
		return stringFromCharCode(((codePoint >> shift) & 0x3F) | 0x80);
	}

	function encodeCodePoint(codePoint, strict) {
		if ((codePoint & 0xFFFFFF80) == 0) { // 1-byte sequence
			return stringFromCharCode(codePoint);
		}
		var symbol = '';
		if ((codePoint & 0xFFFFF800) == 0) { // 2-byte sequence
			symbol = stringFromCharCode(((codePoint >> 6) & 0x1F) | 0xC0);
		}
		else if ((codePoint & 0xFFFF0000) == 0) { // 3-byte sequence
			if (!checkScalarValue(codePoint, strict)) {
				codePoint = 0xFFFD;
			}
			symbol = stringFromCharCode(((codePoint >> 12) & 0x0F) | 0xE0);
			symbol += createByte(codePoint, 6);
		}
		else if ((codePoint & 0xFFE00000) == 0) { // 4-byte sequence
			symbol = stringFromCharCode(((codePoint >> 18) & 0x07) | 0xF0);
			symbol += createByte(codePoint, 12);
			symbol += createByte(codePoint, 6);
		}
		symbol += stringFromCharCode((codePoint & 0x3F) | 0x80);
		return symbol;
	}

	function utf8encode(string, opts) {
		opts = opts || {};
		var strict = false !== opts.strict;

		var codePoints = ucs2decode(string);
		var length = codePoints.length;
		var index = -1;
		var codePoint;
		var byteString = '';
		while (++index < length) {
			codePoint = codePoints[index];
			byteString += encodeCodePoint(codePoint, strict);
		}
		return byteString;
	}

	/*--------------------------------------------------------------------------*/

	function readContinuationByte() {
		if (byteIndex >= byteCount) {
			throw Error('Invalid byte index');
		}

		var continuationByte = byteArray[byteIndex] & 0xFF;
		byteIndex++;

		if ((continuationByte & 0xC0) == 0x80) {
			return continuationByte & 0x3F;
		}

		// If we end up here, it’s not a continuation byte
		throw Error('Invalid continuation byte');
	}

	function decodeSymbol(strict) {
		var byte1;
		var byte2;
		var byte3;
		var byte4;
		var codePoint;

		if (byteIndex > byteCount) {
			throw Error('Invalid byte index');
		}

		if (byteIndex == byteCount) {
			return false;
		}

		// Read first byte
		byte1 = byteArray[byteIndex] & 0xFF;
		byteIndex++;

		// 1-byte sequence (no continuation bytes)
		if ((byte1 & 0x80) == 0) {
			return byte1;
		}

		// 2-byte sequence
		if ((byte1 & 0xE0) == 0xC0) {
			byte2 = readContinuationByte();
			codePoint = ((byte1 & 0x1F) << 6) | byte2;
			if (codePoint >= 0x80) {
				return codePoint;
			} else {
				throw Error('Invalid continuation byte');
			}
		}

		// 3-byte sequence (may include unpaired surrogates)
		if ((byte1 & 0xF0) == 0xE0) {
			byte2 = readContinuationByte();
			byte3 = readContinuationByte();
			codePoint = ((byte1 & 0x0F) << 12) | (byte2 << 6) | byte3;
			if (codePoint >= 0x0800) {
				return checkScalarValue(codePoint, strict) ? codePoint : 0xFFFD;
			} else {
				throw Error('Invalid continuation byte');
			}
		}

		// 4-byte sequence
		if ((byte1 & 0xF8) == 0xF0) {
			byte2 = readContinuationByte();
			byte3 = readContinuationByte();
			byte4 = readContinuationByte();
			codePoint = ((byte1 & 0x07) << 0x12) | (byte2 << 0x0C) |
				(byte3 << 0x06) | byte4;
			if (codePoint >= 0x010000 && codePoint <= 0x10FFFF) {
				return codePoint;
			}
		}

		throw Error('Invalid UTF-8 detected');
	}

	var byteArray;
	var byteCount;
	var byteIndex;
	function utf8decode(byteString, opts) {
		opts = opts || {};
		var strict = false !== opts.strict;

		byteArray = ucs2decode(byteString);
		byteCount = byteArray.length;
		byteIndex = 0;
		var codePoints = [];
		var tmp;
		while ((tmp = decodeSymbol(strict)) !== false) {
			codePoints.push(tmp);
		}
		return ucs2encode(codePoints);
	}

	/*--------------------------------------------------------------------------*/

	var utf8 = {
		'version': '2.1.2',
		'encode': utf8encode,
		'decode': utf8decode
	};

	// Some AMD build optimizers, like r.js, check for specific condition patterns
	// like the following:
	if (
		true
	) {
		!(__WEBPACK_AMD_DEFINE_RESULT__ = (function() {
			return utf8;
		}).call(exports, __webpack_require__, exports, module),
				__WEBPACK_AMD_DEFINE_RESULT__ !== undefined && (module.exports = __WEBPACK_AMD_DEFINE_RESULT__));
	}	else { var key, hasOwnProperty, object; }

}(this));

/* WEBPACK VAR INJECTION */}.call(this, __webpack_require__(/*! ./../../webpack/buildin/module.js */ "./node_modules/webpack/buildin/module.js")(module), __webpack_require__(/*! ./../../webpack/buildin/global.js */ "./node_modules/webpack/buildin/global.js")))

/***/ }),

/***/ "./node_modules/enum/dist/enum.js":
/*!****************************************!*\
  !*** ./node_modules/enum/dist/enum.js ***!
  \****************************************/
/*! no static exports found */
/*! ModuleConcatenation bailout: Module is not an ECMAScript module */
/***/ (function(module, exports, __webpack_require__) {

"use strict";
/* WEBPACK VAR INJECTION */(function(global) {

var _interopRequire = function (obj) { return obj && obj.__esModule ? obj["default"] : obj; };

var _classCallCheck = function (instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } };

var EnumItem = _interopRequire(__webpack_require__(/*! ./enumItem */ "./node_modules/enum/dist/enumItem.js"));

var isString = __webpack_require__(/*! ./isType */ "./node_modules/enum/dist/isType.js").isString;

var indexOf = __webpack_require__(/*! ./indexOf */ "./node_modules/enum/dist/indexOf.js").indexOf;

var isBuffer = _interopRequire(__webpack_require__(/*! is-buffer */ "./node_modules/is-buffer/index.js"));

var endianness = "LE"; // for react-native

/**
 * Represents an Enum with enum items.
 * @param {Array || Object}  map     This are the enum items.
 * @param {String || Object} options This are options. [optional]
 */

var Enum = (function () {
  function Enum(map, options) {
    var _this = this;

    _classCallCheck(this, Enum);

    /* implement the "ref type interface", so that Enum types can
     * be used in `node-ffi` function declarations and invokations.
     * In C, these Enums act as `uint32_t` types.
     *
     * https://github.com/TooTallNate/ref#the-type-interface
     */
    this.size = 4;
    this.indirection = 1;

    if (options && isString(options)) {
      options = { name: options };
    }

    this._options = options || {};
    this._options.separator = this._options.separator || " | ";
    this._options.endianness = this._options.endianness || endianness;
    this._options.ignoreCase = this._options.ignoreCase || false;
    this._options.freez = this._options.freez || false;

    this.enums = [];

    if (map.length) {
      this._enumLastIndex = map.length;
      var array = map;
      map = {};

      for (var i = 0; i < array.length; i++) {
        map[array[i]] = Math.pow(2, i);
      }
    }

    for (var member in map) {
      guardReservedKeys(this._options.name, member);
      this[member] = new EnumItem(member, map[member], { ignoreCase: this._options.ignoreCase });
      this.enums.push(this[member]);
    }
    this._enumMap = map;

    if (this._options.ignoreCase) {
      this.getLowerCaseEnums = function () {
        var res = {};
        for (var i = 0, len = this.enums.length; i < len; i++) {
          res[this.enums[i].key.toLowerCase()] = this.enums[i];
        }
        return res;
      };
    }

    if (this._options.name) {
      this.name = this._options.name;
    }

    var isFlaggable = function () {
      for (var i = 0, len = _this.enums.length; i < len; i++) {
        var e = _this.enums[i];

        if (!(e.value !== 0 && !(e.value & e.value - 1))) {
          return false;
        }
      }
      return true;
    };

    this.isFlaggable = isFlaggable();
    if (this._options.freez) {
      this.freezeEnums(); //this will make instances of Enum non-extensible
    }
  }

  /**
   * Returns the appropriate EnumItem key.
   * @param  {EnumItem || String || Number} key The object to get with.
   * @return {String}                           The get result.
   */

  Enum.prototype.getKey = function getKey(value) {
    var item = this.get(value);
    if (item) {
      return item.key;
    }
  };

  /**
   * Returns the appropriate EnumItem value.
   * @param  {EnumItem || String || Number} key The object to get with.
   * @return {Number}                           The get result.
   */

  Enum.prototype.getValue = function getValue(key) {
    var item = this.get(key);
    if (item) {
      return item.value;
    }
  };

  /**
   * Returns the appropriate EnumItem.
   * @param  {EnumItem || String || Number} key The object to get with.
   * @return {EnumItem}                         The get result.
   */

  Enum.prototype.get = function get(key, offset) {
    if (key === null || key === undefined) {
      return;
    } // Buffer instance support, part of the ref Type interface
    if (isBuffer(key)) {
      key = key["readUInt32" + this._options.endianness](offset || 0);
    }

    if (EnumItem.isEnumItem(key)) {
      var foundIndex = indexOf.call(this.enums, key);
      if (foundIndex >= 0) {
        return key;
      }
      if (!this.isFlaggable || this.isFlaggable && key.key.indexOf(this._options.separator) < 0) {
        return;
      }
      return this.get(key.key);
    } else if (isString(key)) {

      var enums = this;
      if (this._options.ignoreCase) {
        enums = this.getLowerCaseEnums();
        key = key.toLowerCase();
      }

      if (key.indexOf(this._options.separator) > 0) {
        var parts = key.split(this._options.separator);

        var value = 0;
        for (var i = 0; i < parts.length; i++) {
          var part = parts[i];

          value |= enums[part].value;
        }

        return new EnumItem(key, value);
      } else {
        return enums[key];
      }
    } else {
      for (var m in this) {
        if (this.hasOwnProperty(m)) {
          if (this[m].value === key) {
            return this[m];
          }
        }
      }

      var result = null;

      if (this.isFlaggable) {
        for (var n in this) {
          if (this.hasOwnProperty(n)) {
            if ((key & this[n].value) !== 0) {
              if (result) {
                result += this._options.separator;
              } else {
                result = "";
              }
              result += n;
            }
          }
        }
      }

      return this.get(result || null);
    }
  };

  /**
   * Sets the Enum "value" onto the give `buffer` at the specified `offset`.
   * Part of the ref "Type interface".
   *
   * @param  {Buffer} buffer The Buffer instance to write to.
   * @param  {Number} offset The offset in the buffer to write to. Default 0.
   * @param  {EnumItem || String || Number} value The EnumItem to write.
   */

  Enum.prototype.set = function set(buffer, offset, value) {
    var item = this.get(value);
    if (item) {
      return buffer["writeUInt32" + this._options.endianness](item.value, offset || 0);
    }
  };

  /**
   * Define freezeEnums() as a property of the prototype.
   * make enumerable items nonconfigurable and deep freeze the properties. Throw Error on property setter.
   */

  Enum.prototype.freezeEnums = function freezeEnums() {
    function envSupportsFreezing() {
      return Object.isFrozen && Object.isSealed && Object.getOwnPropertyNames && Object.getOwnPropertyDescriptor && Object.defineProperties && Object.__defineGetter__ && Object.__defineSetter__;
    }

    function freezer(o) {
      var props = Object.getOwnPropertyNames(o);
      props.forEach(function (p) {
        if (!Object.getOwnPropertyDescriptor(o, p).configurable) {
          return;
        }

        Object.defineProperties(o, p, { writable: false, configurable: false });
      });
      return o;
    }

    function getPropertyValue(value) {
      return value;
    }

    function deepFreezeEnums(o) {
      if (typeof o !== "object" || o === null || Object.isFrozen(o) || Object.isSealed(o)) {
        return;
      }
      for (var key in o) {
        if (o.hasOwnProperty(key)) {
          o.__defineGetter__(key, getPropertyValue.bind(null, o[key]));
          o.__defineSetter__(key, function throwPropertySetError(value) {
            throw TypeError("Cannot redefine property; Enum Type is not extensible.");
          });
          deepFreezeEnums(o[key]);
        }
      }
      if (Object.freeze) {
        Object.freeze(o);
      } else {
        freezer(o);
      }
    }

    if (envSupportsFreezing()) {
      deepFreezeEnums(this);
    }

    return this;
  };

  /**
   * Returns JSON object representation of this Enum.
   * @return {String} JSON object representation of this Enum.
   */

  Enum.prototype.toJSON = function toJSON() {
    return this._enumMap;
  };

  /**
   * Extends the existing Enum with a New Map.
   * @param  {Array}  map  Map to extend from
   */

  Enum.prototype.extend = function extend(map) {
    if (map.length) {
      var array = map;
      map = {};

      for (var i = 0; i < array.length; i++) {
        var exponent = this._enumLastIndex + i;
        map[array[i]] = Math.pow(2, exponent);
      }

      for (var member in map) {
        guardReservedKeys(this._options.name, member);
        this[member] = new EnumItem(member, map[member], { ignoreCase: this._options.ignoreCase });
        this.enums.push(this[member]);
      }

      for (var key in this._enumMap) {
        map[key] = this._enumMap[key];
      }

      this._enumLastIndex += map.length;
      this._enumMap = map;

      if (this._options.freez) {
        this.freezeEnums(); //this will make instances of new Enum non-extensible
      }
    }
  };

  /**
   * Registers the Enum Type globally in node.js.
   * @param  {String} key Global variable. [optional]
   */

  Enum.register = function register() {
    var key = arguments[0] === undefined ? "Enum" : arguments[0];

    if (!global[key]) {
      global[key] = Enum;
    }
  };

  return Enum;
})();

module.exports = Enum;

// private

var reservedKeys = ["_options", "get", "getKey", "getValue", "enums", "isFlaggable", "_enumMap", "toJSON", "_enumLastIndex"];

function guardReservedKeys(customName, key) {
  if (customName && key === "name" || indexOf.call(reservedKeys, key) >= 0) {
    throw new Error("Enum key " + key + " is a reserved word!");
  }
}
/* WEBPACK VAR INJECTION */}.call(this, __webpack_require__(/*! ./../../webpack/buildin/global.js */ "./node_modules/webpack/buildin/global.js")))

/***/ }),

/***/ "./node_modules/enum/dist/enumItem.js":
/*!********************************************!*\
  !*** ./node_modules/enum/dist/enumItem.js ***!
  \********************************************/
/*! no static exports found */
/*! ModuleConcatenation bailout: Module is not an ECMAScript module */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


var _classCallCheck = function (instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } };

var _isType = __webpack_require__(/*! ./isType */ "./node_modules/enum/dist/isType.js");

var isObject = _isType.isObject;
var isString = _isType.isString;

/**
 * Represents an Item of an Enum.
 * @param {String} key   The Enum key.
 * @param {Number} value The Enum value.
 */

var EnumItem = (function () {

  /*constructor reference so that, this.constructor===EnumItem//=>true */

  function EnumItem(key, value) {
    var options = arguments[2] === undefined ? {} : arguments[2];

    _classCallCheck(this, EnumItem);

    this.key = key;
    this.value = value;

    this._options = options;
    this._options.ignoreCase = this._options.ignoreCase || false;
  }

  /**
   * Checks if the flagged EnumItem has the passing object.
   * @param  {EnumItem || String || Number} value The object to check with.
   * @return {Boolean}                            The check result.
   */

  EnumItem.prototype.has = function has(value) {
    if (EnumItem.isEnumItem(value)) {
      return (this.value & value.value) !== 0;
    } else if (isString(value)) {
      if (this._options.ignoreCase) {
        return this.key.toLowerCase().indexOf(value.toLowerCase()) >= 0;
      }
      return this.key.indexOf(value) >= 0;
    } else {
      return (this.value & value) !== 0;
    }
  };

  /**
   * Checks if the EnumItem is the same as the passing object.
   * @param  {EnumItem || String || Number} key The object to check with.
   * @return {Boolean}                          The check result.
   */

  EnumItem.prototype.is = function is(key) {
    if (EnumItem.isEnumItem(key)) {
      return this.key === key.key;
    } else if (isString(key)) {
      if (this._options.ignoreCase) {
        return this.key.toLowerCase() === key.toLowerCase();
      }
      return this.key === key;
    } else {
      return this.value === key;
    }
  };

  /**
   * Returns String representation of this EnumItem.
   * @return {String} String representation of this EnumItem.
   */

  EnumItem.prototype.toString = function toString() {
    return this.key;
  };

  /**
   * Returns JSON object representation of this EnumItem.
   * @return {String} JSON object representation of this EnumItem.
   */

  EnumItem.prototype.toJSON = function toJSON() {
    return this.key;
  };

  /**
   * Returns the value to compare with.
   * @return {String} The value to compare with.
   */

  EnumItem.prototype.valueOf = function valueOf() {
    return this.value;
  };

  EnumItem.isEnumItem = function isEnumItem(value) {
    return value instanceof EnumItem || isObject(value) && value.key !== undefined && value.value !== undefined;
  };

  return EnumItem;
})();

module.exports = EnumItem;

/***/ }),

/***/ "./node_modules/enum/dist/indexOf.js":
/*!*******************************************!*\
  !*** ./node_modules/enum/dist/indexOf.js ***!
  \*******************************************/
/*! no static exports found */
/*! ModuleConcatenation bailout: Module is not an ECMAScript module */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


exports.__esModule = true;
var indexOf = Array.prototype.indexOf || function (find, i /*opt*/) {
  if (i === undefined) i = 0;
  if (i < 0) i += this.length;
  if (i < 0) i = 0;
  for (var n = this.length; i < n; i++) if (i in this && this[i] === find) return i;
  return -1;
};
exports.indexOf = indexOf;

/***/ }),

/***/ "./node_modules/enum/dist/isType.js":
/*!******************************************!*\
  !*** ./node_modules/enum/dist/isType.js ***!
  \******************************************/
/*! no static exports found */
/*! ModuleConcatenation bailout: Module is not an ECMAScript module */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


exports.__esModule = true;
var isType = function (type, value) {
  return typeof value === type;
};
exports.isType = isType;
var isObject = function (value) {
  return isType("object", value);
};
exports.isObject = isObject;
var isString = function (value) {
  return isType("string", value);
};
exports.isString = isString;

/***/ }),

/***/ "./node_modules/enum/index.js":
/*!************************************!*\
  !*** ./node_modules/enum/index.js ***!
  \************************************/
/*! no static exports found */
/*! ModuleConcatenation bailout: Module is not an ECMAScript module */
/***/ (function(module, exports, __webpack_require__) {

module.exports = __webpack_require__(/*! ./dist/enum */ "./node_modules/enum/dist/enum.js");


/***/ }),

/***/ "./node_modules/has-binary2/index.js":
/*!*******************************************!*\
  !*** ./node_modules/has-binary2/index.js ***!
  \*******************************************/
/*! no static exports found */
/*! ModuleConcatenation bailout: Module is not an ECMAScript module */
/***/ (function(module, exports, __webpack_require__) {

/* WEBPACK VAR INJECTION */(function(global) {/* global Blob File */

/*
 * Module requirements.
 */

var isArray = __webpack_require__(/*! isarray */ "./node_modules/has-binary2/node_modules/isarray/index.js");

var toString = Object.prototype.toString;
var withNativeBlob = typeof global.Blob === 'function' || toString.call(global.Blob) === '[object BlobConstructor]';
var withNativeFile = typeof global.File === 'function' || toString.call(global.File) === '[object FileConstructor]';

/**
 * Module exports.
 */

module.exports = hasBinary;

/**
 * Checks for binary data.
 *
 * Supports Buffer, ArrayBuffer, Blob and File.
 *
 * @param {Object} anything
 * @api public
 */

function hasBinary (obj) {
  if (!obj || typeof obj !== 'object') {
    return false;
  }

  if (isArray(obj)) {
    for (var i = 0, l = obj.length; i < l; i++) {
      if (hasBinary(obj[i])) {
        return true;
      }
    }
    return false;
  }

  if ((typeof global.Buffer === 'function' && global.Buffer.isBuffer && global.Buffer.isBuffer(obj)) ||
     (typeof global.ArrayBuffer === 'function' && obj instanceof ArrayBuffer) ||
     (withNativeBlob && obj instanceof Blob) ||
     (withNativeFile && obj instanceof File)
    ) {
    return true;
  }

  // see: https://github.com/Automattic/has-binary/pull/4
  if (obj.toJSON && typeof obj.toJSON === 'function' && arguments.length === 1) {
    return hasBinary(obj.toJSON(), true);
  }

  for (var key in obj) {
    if (Object.prototype.hasOwnProperty.call(obj, key) && hasBinary(obj[key])) {
      return true;
    }
  }

  return false;
}

/* WEBPACK VAR INJECTION */}.call(this, __webpack_require__(/*! ./../webpack/buildin/global.js */ "./node_modules/webpack/buildin/global.js")))

/***/ }),

/***/ "./node_modules/has-binary2/node_modules/isarray/index.js":
/*!****************************************************************!*\
  !*** ./node_modules/has-binary2/node_modules/isarray/index.js ***!
  \****************************************************************/
/*! no static exports found */
/*! ModuleConcatenation bailout: Module is not an ECMAScript module */
/***/ (function(module, exports) {

var toString = {}.toString;

module.exports = Array.isArray || function (arr) {
  return toString.call(arr) == '[object Array]';
};


/***/ }),

/***/ "./node_modules/has-cors/index.js":
/*!****************************************!*\
  !*** ./node_modules/has-cors/index.js ***!
  \****************************************/
/*! no static exports found */
/*! ModuleConcatenation bailout: Module is not an ECMAScript module */
/***/ (function(module, exports) {


/**
 * Module exports.
 *
 * Logic borrowed from Modernizr:
 *
 *   - https://github.com/Modernizr/Modernizr/blob/master/feature-detects/cors.js
 */

try {
  module.exports = typeof XMLHttpRequest !== 'undefined' &&
    'withCredentials' in new XMLHttpRequest();
} catch (err) {
  // if XMLHttp support is disabled in IE then it will throw
  // when trying to create
  module.exports = false;
}


/***/ }),

/***/ "./node_modules/ieee754/index.js":
/*!***************************************!*\
  !*** ./node_modules/ieee754/index.js ***!
  \***************************************/
/*! no static exports found */
/*! ModuleConcatenation bailout: Module is not an ECMAScript module */
/***/ (function(module, exports) {

exports.read = function (buffer, offset, isLE, mLen, nBytes) {
  var e, m
  var eLen = nBytes * 8 - mLen - 1
  var eMax = (1 << eLen) - 1
  var eBias = eMax >> 1
  var nBits = -7
  var i = isLE ? (nBytes - 1) : 0
  var d = isLE ? -1 : 1
  var s = buffer[offset + i]

  i += d

  e = s & ((1 << (-nBits)) - 1)
  s >>= (-nBits)
  nBits += eLen
  for (; nBits > 0; e = e * 256 + buffer[offset + i], i += d, nBits -= 8) {}

  m = e & ((1 << (-nBits)) - 1)
  e >>= (-nBits)
  nBits += mLen
  for (; nBits > 0; m = m * 256 + buffer[offset + i], i += d, nBits -= 8) {}

  if (e === 0) {
    e = 1 - eBias
  } else if (e === eMax) {
    return m ? NaN : ((s ? -1 : 1) * Infinity)
  } else {
    m = m + Math.pow(2, mLen)
    e = e - eBias
  }
  return (s ? -1 : 1) * m * Math.pow(2, e - mLen)
}

exports.write = function (buffer, value, offset, isLE, mLen, nBytes) {
  var e, m, c
  var eLen = nBytes * 8 - mLen - 1
  var eMax = (1 << eLen) - 1
  var eBias = eMax >> 1
  var rt = (mLen === 23 ? Math.pow(2, -24) - Math.pow(2, -77) : 0)
  var i = isLE ? 0 : (nBytes - 1)
  var d = isLE ? 1 : -1
  var s = value < 0 || (value === 0 && 1 / value < 0) ? 1 : 0

  value = Math.abs(value)

  if (isNaN(value) || value === Infinity) {
    m = isNaN(value) ? 1 : 0
    e = eMax
  } else {
    e = Math.floor(Math.log(value) / Math.LN2)
    if (value * (c = Math.pow(2, -e)) < 1) {
      e--
      c *= 2
    }
    if (e + eBias >= 1) {
      value += rt / c
    } else {
      value += rt * Math.pow(2, 1 - eBias)
    }
    if (value * c >= 2) {
      e++
      c /= 2
    }

    if (e + eBias >= eMax) {
      m = 0
      e = eMax
    } else if (e + eBias >= 1) {
      m = (value * c - 1) * Math.pow(2, mLen)
      e = e + eBias
    } else {
      m = value * Math.pow(2, eBias - 1) * Math.pow(2, mLen)
      e = 0
    }
  }

  for (; mLen >= 8; buffer[offset + i] = m & 0xff, i += d, m /= 256, mLen -= 8) {}

  e = (e << mLen) | m
  eLen += mLen
  for (; eLen > 0; buffer[offset + i] = e & 0xff, i += d, e /= 256, eLen -= 8) {}

  buffer[offset + i - d] |= s * 128
}


/***/ }),

/***/ "./node_modules/indexof/index.js":
/*!***************************************!*\
  !*** ./node_modules/indexof/index.js ***!
  \***************************************/
/*! no static exports found */
/*! ModuleConcatenation bailout: Module is not an ECMAScript module */
/***/ (function(module, exports) {


var indexOf = [].indexOf;

module.exports = function(arr, obj){
  if (indexOf) return arr.indexOf(obj);
  for (var i = 0; i < arr.length; ++i) {
    if (arr[i] === obj) return i;
  }
  return -1;
};

/***/ }),

/***/ "./node_modules/is-buffer/index.js":
/*!*****************************************!*\
  !*** ./node_modules/is-buffer/index.js ***!
  \*****************************************/
/*! no static exports found */
/*! ModuleConcatenation bailout: Module is not an ECMAScript module */
/***/ (function(module, exports) {

/*!
 * Determine if an object is a Buffer
 *
 * @author   Feross Aboukhadijeh <feross@feross.org> <http://feross.org>
 * @license  MIT
 */

// The _isBuffer check is for Safari 5-7 support, because it's missing
// Object.prototype.constructor. Remove this eventually
module.exports = function (obj) {
  return obj != null && (isBuffer(obj) || isSlowBuffer(obj) || !!obj._isBuffer)
}

function isBuffer (obj) {
  return !!obj.constructor && typeof obj.constructor.isBuffer === 'function' && obj.constructor.isBuffer(obj)
}

// For Node v0.10 support. Remove this eventually.
function isSlowBuffer (obj) {
  return typeof obj.readFloatLE === 'function' && typeof obj.slice === 'function' && isBuffer(obj.slice(0, 0))
}


/***/ }),

/***/ "./node_modules/isarray/index.js":
/*!***************************************!*\
  !*** ./node_modules/isarray/index.js ***!
  \***************************************/
/*! no static exports found */
/*! ModuleConcatenation bailout: Module is not an ECMAScript module */
/***/ (function(module, exports) {

var toString = {}.toString;

module.exports = Array.isArray || function (arr) {
  return toString.call(arr) == '[object Array]';
};


/***/ }),

/***/ "./node_modules/js-binarypack/lib/binarypack.js":
/*!******************************************************!*\
  !*** ./node_modules/js-binarypack/lib/binarypack.js ***!
  \******************************************************/
/*! no static exports found */
/*! ModuleConcatenation bailout: Module is not an ECMAScript module */
/***/ (function(module, exports, __webpack_require__) {

var BufferBuilder = __webpack_require__(/*! ./bufferbuilder */ "./node_modules/js-binarypack/lib/bufferbuilder.js").BufferBuilder;
var binaryFeatures = __webpack_require__(/*! ./bufferbuilder */ "./node_modules/js-binarypack/lib/bufferbuilder.js").binaryFeatures;

var BinaryPack = {
  unpack: function(data){
    var unpacker = new Unpacker(data);
    return unpacker.unpack();
  },
  pack: function(data){
    var packer = new Packer();
    packer.pack(data);
    var buffer = packer.getBuffer();
    return buffer;
  }
};

module.exports = BinaryPack;

function Unpacker (data){
  // Data is ArrayBuffer
  this.index = 0;
  this.dataBuffer = data;
  this.dataView = new Uint8Array(this.dataBuffer);
  this.length = this.dataBuffer.byteLength;
}

Unpacker.prototype.unpack = function(){
  var type = this.unpack_uint8();
  if (type < 0x80){
    var positive_fixnum = type;
    return positive_fixnum;
  } else if ((type ^ 0xe0) < 0x20){
    var negative_fixnum = (type ^ 0xe0) - 0x20;
    return negative_fixnum;
  }
  var size;
  if ((size = type ^ 0xa0) <= 0x0f){
    return this.unpack_raw(size);
  } else if ((size = type ^ 0xb0) <= 0x0f){
    return this.unpack_string(size);
  } else if ((size = type ^ 0x90) <= 0x0f){
    return this.unpack_array(size);
  } else if ((size = type ^ 0x80) <= 0x0f){
    return this.unpack_map(size);
  }
  switch(type){
    case 0xc0:
      return null;
    case 0xc1:
      return undefined;
    case 0xc2:
      return false;
    case 0xc3:
      return true;
    case 0xca:
      return this.unpack_float();
    case 0xcb:
      return this.unpack_double();
    case 0xcc:
      return this.unpack_uint8();
    case 0xcd:
      return this.unpack_uint16();
    case 0xce:
      return this.unpack_uint32();
    case 0xcf:
      return this.unpack_uint64();
    case 0xd0:
      return this.unpack_int8();
    case 0xd1:
      return this.unpack_int16();
    case 0xd2:
      return this.unpack_int32();
    case 0xd3:
      return this.unpack_int64();
    case 0xd4:
      return undefined;
    case 0xd5:
      return undefined;
    case 0xd6:
      return undefined;
    case 0xd7:
      return undefined;
    case 0xd8:
      size = this.unpack_uint16();
      return this.unpack_string(size);
    case 0xd9:
      size = this.unpack_uint32();
      return this.unpack_string(size);
    case 0xda:
      size = this.unpack_uint16();
      return this.unpack_raw(size);
    case 0xdb:
      size = this.unpack_uint32();
      return this.unpack_raw(size);
    case 0xdc:
      size = this.unpack_uint16();
      return this.unpack_array(size);
    case 0xdd:
      size = this.unpack_uint32();
      return this.unpack_array(size);
    case 0xde:
      size = this.unpack_uint16();
      return this.unpack_map(size);
    case 0xdf:
      size = this.unpack_uint32();
      return this.unpack_map(size);
  }
}

Unpacker.prototype.unpack_uint8 = function(){
  var byte = this.dataView[this.index] & 0xff;
  this.index++;
  return byte;
};

Unpacker.prototype.unpack_uint16 = function(){
  var bytes = this.read(2);
  var uint16 =
    ((bytes[0] & 0xff) * 256) + (bytes[1] & 0xff);
  this.index += 2;
  return uint16;
}

Unpacker.prototype.unpack_uint32 = function(){
  var bytes = this.read(4);
  var uint32 =
     ((bytes[0]  * 256 +
       bytes[1]) * 256 +
       bytes[2]) * 256 +
       bytes[3];
  this.index += 4;
  return uint32;
}

Unpacker.prototype.unpack_uint64 = function(){
  var bytes = this.read(8);
  var uint64 =
   ((((((bytes[0]  * 256 +
       bytes[1]) * 256 +
       bytes[2]) * 256 +
       bytes[3]) * 256 +
       bytes[4]) * 256 +
       bytes[5]) * 256 +
       bytes[6]) * 256 +
       bytes[7];
  this.index += 8;
  return uint64;
}


Unpacker.prototype.unpack_int8 = function(){
  var uint8 = this.unpack_uint8();
  return (uint8 < 0x80 ) ? uint8 : uint8 - (1 << 8);
};

Unpacker.prototype.unpack_int16 = function(){
  var uint16 = this.unpack_uint16();
  return (uint16 < 0x8000 ) ? uint16 : uint16 - (1 << 16);
}

Unpacker.prototype.unpack_int32 = function(){
  var uint32 = this.unpack_uint32();
  return (uint32 < Math.pow(2, 31) ) ? uint32 :
    uint32 - Math.pow(2, 32);
}

Unpacker.prototype.unpack_int64 = function(){
  var uint64 = this.unpack_uint64();
  return (uint64 < Math.pow(2, 63) ) ? uint64 :
    uint64 - Math.pow(2, 64);
}

Unpacker.prototype.unpack_raw = function(size){
  if ( this.length < this.index + size){
    throw new Error('BinaryPackFailure: index is out of range'
      + ' ' + this.index + ' ' + size + ' ' + this.length);
  }
  var buf = this.dataBuffer.slice(this.index, this.index + size);
  this.index += size;

    //buf = util.bufferToString(buf);

  return buf;
}

Unpacker.prototype.unpack_string = function(size){
  var bytes = this.read(size);
  var i = 0, str = '', c, code;
  while(i < size){
    c = bytes[i];
    if ( c < 128){
      str += String.fromCharCode(c);
      i++;
    } else if ((c ^ 0xc0) < 32){
      code = ((c ^ 0xc0) << 6) | (bytes[i+1] & 63);
      str += String.fromCharCode(code);
      i += 2;
    } else {
      code = ((c & 15) << 12) | ((bytes[i+1] & 63) << 6) |
        (bytes[i+2] & 63);
      str += String.fromCharCode(code);
      i += 3;
    }
  }
  this.index += size;
  return str;
}

Unpacker.prototype.unpack_array = function(size){
  var objects = new Array(size);
  for(var i = 0; i < size ; i++){
    objects[i] = this.unpack();
  }
  return objects;
}

Unpacker.prototype.unpack_map = function(size){
  var map = {};
  for(var i = 0; i < size ; i++){
    var key  = this.unpack();
    var value = this.unpack();
    map[key] = value;
  }
  return map;
}

Unpacker.prototype.unpack_float = function(){
  var uint32 = this.unpack_uint32();
  var sign = uint32 >> 31;
  var exp  = ((uint32 >> 23) & 0xff) - 127;
  var fraction = ( uint32 & 0x7fffff ) | 0x800000;
  return (sign == 0 ? 1 : -1) *
    fraction * Math.pow(2, exp - 23);
}

Unpacker.prototype.unpack_double = function(){
  var h32 = this.unpack_uint32();
  var l32 = this.unpack_uint32();
  var sign = h32 >> 31;
  var exp  = ((h32 >> 20) & 0x7ff) - 1023;
  var hfrac = ( h32 & 0xfffff ) | 0x100000;
  var frac = hfrac * Math.pow(2, exp - 20) +
    l32   * Math.pow(2, exp - 52);
  return (sign == 0 ? 1 : -1) * frac;
}

Unpacker.prototype.read = function(length){
  var j = this.index;
  if (j + length <= this.length) {
    return this.dataView.subarray(j, j + length);
  } else {
    throw new Error('BinaryPackFailure: read index out of range');
  }
}

function Packer(){
  this.bufferBuilder = new BufferBuilder();
}

Packer.prototype.getBuffer = function(){
  return this.bufferBuilder.getBuffer();
}

Packer.prototype.pack = function(value){
  var type = typeof(value);
  if (type == 'string'){
    this.pack_string(value);
  } else if (type == 'number'){
    if (Math.floor(value) === value){
      this.pack_integer(value);
    } else{
      this.pack_double(value);
    }
  } else if (type == 'boolean'){
    if (value === true){
      this.bufferBuilder.append(0xc3);
    } else if (value === false){
      this.bufferBuilder.append(0xc2);
    }
  } else if (type == 'undefined'){
    this.bufferBuilder.append(0xc0);
  } else if (type == 'object'){
    if (value === null){
      this.bufferBuilder.append(0xc0);
    } else {
      var constructor = value.constructor;
      if (constructor == Array){
        this.pack_array(value);
      } else if (constructor == Blob || constructor == File) {
        this.pack_bin(value);
      } else if (constructor == ArrayBuffer) {
        if(binaryFeatures.useArrayBufferView) {
          this.pack_bin(new Uint8Array(value));
        } else {
          this.pack_bin(value);
        }
      } else if ('BYTES_PER_ELEMENT' in value){
        if(binaryFeatures.useArrayBufferView) {
          this.pack_bin(new Uint8Array(value.buffer));
        } else {
          this.pack_bin(value.buffer);
        }
      } else if (constructor == Object){
        this.pack_object(value);
      } else if (constructor == Date){
        this.pack_string(value.toString());
      } else if (typeof value.toBinaryPack == 'function'){
        this.bufferBuilder.append(value.toBinaryPack());
      } else {
        throw new Error('Type "' + constructor.toString() + '" not yet supported');
      }
    }
  } else {
    throw new Error('Type "' + type + '" not yet supported');
  }
  this.bufferBuilder.flush();
}


Packer.prototype.pack_bin = function(blob){
  var length = blob.length || blob.byteLength || blob.size;
  if (length <= 0x0f){
    this.pack_uint8(0xa0 + length);
  } else if (length <= 0xffff){
    this.bufferBuilder.append(0xda) ;
    this.pack_uint16(length);
  } else if (length <= 0xffffffff){
    this.bufferBuilder.append(0xdb);
    this.pack_uint32(length);
  } else{
    throw new Error('Invalid length');
  }
  this.bufferBuilder.append(blob);
}

Packer.prototype.pack_string = function(str){
  var length = utf8Length(str);

  if (length <= 0x0f){
    this.pack_uint8(0xb0 + length);
  } else if (length <= 0xffff){
    this.bufferBuilder.append(0xd8) ;
    this.pack_uint16(length);
  } else if (length <= 0xffffffff){
    this.bufferBuilder.append(0xd9);
    this.pack_uint32(length);
  } else{
    throw new Error('Invalid length');
  }
  this.bufferBuilder.append(str);
}

Packer.prototype.pack_array = function(ary){
  var length = ary.length;
  if (length <= 0x0f){
    this.pack_uint8(0x90 + length);
  } else if (length <= 0xffff){
    this.bufferBuilder.append(0xdc)
    this.pack_uint16(length);
  } else if (length <= 0xffffffff){
    this.bufferBuilder.append(0xdd);
    this.pack_uint32(length);
  } else{
    throw new Error('Invalid length');
  }
  for(var i = 0; i < length ; i++){
    this.pack(ary[i]);
  }
}

Packer.prototype.pack_integer = function(num){
  if ( -0x20 <= num && num <= 0x7f){
    this.bufferBuilder.append(num & 0xff);
  } else if (0x00 <= num && num <= 0xff){
    this.bufferBuilder.append(0xcc);
    this.pack_uint8(num);
  } else if (-0x80 <= num && num <= 0x7f){
    this.bufferBuilder.append(0xd0);
    this.pack_int8(num);
  } else if ( 0x0000 <= num && num <= 0xffff){
    this.bufferBuilder.append(0xcd);
    this.pack_uint16(num);
  } else if (-0x8000 <= num && num <= 0x7fff){
    this.bufferBuilder.append(0xd1);
    this.pack_int16(num);
  } else if ( 0x00000000 <= num && num <= 0xffffffff){
    this.bufferBuilder.append(0xce);
    this.pack_uint32(num);
  } else if (-0x80000000 <= num && num <= 0x7fffffff){
    this.bufferBuilder.append(0xd2);
    this.pack_int32(num);
  } else if (-0x8000000000000000 <= num && num <= 0x7FFFFFFFFFFFFFFF){
    this.bufferBuilder.append(0xd3);
    this.pack_int64(num);
  } else if (0x0000000000000000 <= num && num <= 0xFFFFFFFFFFFFFFFF){
    this.bufferBuilder.append(0xcf);
    this.pack_uint64(num);
  } else{
    throw new Error('Invalid integer');
  }
}

Packer.prototype.pack_double = function(num){
  var sign = 0;
  if (num < 0){
    sign = 1;
    num = -num;
  }
  var exp  = Math.floor(Math.log(num) / Math.LN2);
  var frac0 = num / Math.pow(2, exp) - 1;
  var frac1 = Math.floor(frac0 * Math.pow(2, 52));
  var b32   = Math.pow(2, 32);
  var h32 = (sign << 31) | ((exp+1023) << 20) |
      (frac1 / b32) & 0x0fffff;
  var l32 = frac1 % b32;
  this.bufferBuilder.append(0xcb);
  this.pack_int32(h32);
  this.pack_int32(l32);
}

Packer.prototype.pack_object = function(obj){
  var keys = Object.keys(obj);
  var length = keys.length;
  if (length <= 0x0f){
    this.pack_uint8(0x80 + length);
  } else if (length <= 0xffff){
    this.bufferBuilder.append(0xde);
    this.pack_uint16(length);
  } else if (length <= 0xffffffff){
    this.bufferBuilder.append(0xdf);
    this.pack_uint32(length);
  } else{
    throw new Error('Invalid length');
  }
  for(var prop in obj){
    if (obj.hasOwnProperty(prop)){
      this.pack(prop);
      this.pack(obj[prop]);
    }
  }
}

Packer.prototype.pack_uint8 = function(num){
  this.bufferBuilder.append(num);
}

Packer.prototype.pack_uint16 = function(num){
  this.bufferBuilder.append(num >> 8);
  this.bufferBuilder.append(num & 0xff);
}

Packer.prototype.pack_uint32 = function(num){
  var n = num & 0xffffffff;
  this.bufferBuilder.append((n & 0xff000000) >>> 24);
  this.bufferBuilder.append((n & 0x00ff0000) >>> 16);
  this.bufferBuilder.append((n & 0x0000ff00) >>>  8);
  this.bufferBuilder.append((n & 0x000000ff));
}

Packer.prototype.pack_uint64 = function(num){
  var high = num / Math.pow(2, 32);
  var low  = num % Math.pow(2, 32);
  this.bufferBuilder.append((high & 0xff000000) >>> 24);
  this.bufferBuilder.append((high & 0x00ff0000) >>> 16);
  this.bufferBuilder.append((high & 0x0000ff00) >>>  8);
  this.bufferBuilder.append((high & 0x000000ff));
  this.bufferBuilder.append((low  & 0xff000000) >>> 24);
  this.bufferBuilder.append((low  & 0x00ff0000) >>> 16);
  this.bufferBuilder.append((low  & 0x0000ff00) >>>  8);
  this.bufferBuilder.append((low  & 0x000000ff));
}

Packer.prototype.pack_int8 = function(num){
  this.bufferBuilder.append(num & 0xff);
}

Packer.prototype.pack_int16 = function(num){
  this.bufferBuilder.append((num & 0xff00) >> 8);
  this.bufferBuilder.append(num & 0xff);
}

Packer.prototype.pack_int32 = function(num){
  this.bufferBuilder.append((num >>> 24) & 0xff);
  this.bufferBuilder.append((num & 0x00ff0000) >>> 16);
  this.bufferBuilder.append((num & 0x0000ff00) >>> 8);
  this.bufferBuilder.append((num & 0x000000ff));
}

Packer.prototype.pack_int64 = function(num){
  var high = Math.floor(num / Math.pow(2, 32));
  var low  = num % Math.pow(2, 32);
  this.bufferBuilder.append((high & 0xff000000) >>> 24);
  this.bufferBuilder.append((high & 0x00ff0000) >>> 16);
  this.bufferBuilder.append((high & 0x0000ff00) >>>  8);
  this.bufferBuilder.append((high & 0x000000ff));
  this.bufferBuilder.append((low  & 0xff000000) >>> 24);
  this.bufferBuilder.append((low  & 0x00ff0000) >>> 16);
  this.bufferBuilder.append((low  & 0x0000ff00) >>>  8);
  this.bufferBuilder.append((low  & 0x000000ff));
}

function _utf8Replace(m){
  var code = m.charCodeAt(0);

  if(code <= 0x7ff) return '00';
  if(code <= 0xffff) return '000';
  if(code <= 0x1fffff) return '0000';
  if(code <= 0x3ffffff) return '00000';
  return '000000';
}

function utf8Length(str){
  if (str.length > 600) {
    // Blob method faster for large strings
    return (new Blob([str])).size;
  } else {
    return str.replace(/[^\u0000-\u007F]/g, _utf8Replace).length;
  }
}


/***/ }),

/***/ "./node_modules/js-binarypack/lib/bufferbuilder.js":
/*!*********************************************************!*\
  !*** ./node_modules/js-binarypack/lib/bufferbuilder.js ***!
  \*********************************************************/
/*! no static exports found */
/*! ModuleConcatenation bailout: Module is not an ECMAScript module */
/***/ (function(module, exports) {

var binaryFeatures = {};
binaryFeatures.useBlobBuilder = (function(){
  try {
    new Blob([]);
    return false;
  } catch (e) {
    return true;
  }
})();

binaryFeatures.useArrayBufferView = !binaryFeatures.useBlobBuilder && (function(){
  try {
    return (new Blob([new Uint8Array([])])).size === 0;
  } catch (e) {
    return true;
  }
})();

module.exports.binaryFeatures = binaryFeatures;
var BlobBuilder = module.exports.BlobBuilder;
if (typeof window != 'undefined') {
  BlobBuilder = module.exports.BlobBuilder = window.WebKitBlobBuilder ||
    window.MozBlobBuilder || window.MSBlobBuilder || window.BlobBuilder;
}

function BufferBuilder(){
  this._pieces = [];
  this._parts = [];
}

BufferBuilder.prototype.append = function(data) {
  if(typeof data === 'number') {
    this._pieces.push(data);
  } else {
    this.flush();
    this._parts.push(data);
  }
};

BufferBuilder.prototype.flush = function() {
  if (this._pieces.length > 0) {
    var buf = new Uint8Array(this._pieces);
    if(!binaryFeatures.useArrayBufferView) {
      buf = buf.buffer;
    }
    this._parts.push(buf);
    this._pieces = [];
  }
};

BufferBuilder.prototype.getBuffer = function() {
  this.flush();
  if(binaryFeatures.useBlobBuilder) {
    var builder = new BlobBuilder();
    for(var i = 0, ii = this._parts.length; i < ii; i++) {
      builder.append(this._parts[i]);
    }
    return builder.getBlob();
  } else {
    return new Blob(this._parts);
  }
};

module.exports.BufferBuilder = BufferBuilder;


/***/ }),

/***/ "./node_modules/ms/index.js":
/*!**********************************!*\
  !*** ./node_modules/ms/index.js ***!
  \**********************************/
/*! no static exports found */
/*! ModuleConcatenation bailout: Module is not an ECMAScript module */
/***/ (function(module, exports) {

/**
 * Helpers.
 */

var s = 1000;
var m = s * 60;
var h = m * 60;
var d = h * 24;
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+) *(milliseconds?|msecs?|ms|seconds?|secs?|s|minutes?|mins?|m|hours?|hrs?|h|days?|d|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 '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) {
  if (ms >= d) {
    return Math.round(ms / d) + 'd';
  }
  if (ms >= h) {
    return Math.round(ms / h) + 'h';
  }
  if (ms >= m) {
    return Math.round(ms / m) + 'm';
  }
  if (ms >= s) {
    return Math.round(ms / s) + 's';
  }
  return ms + 'ms';
}

/**
 * Long format for `ms`.
 *
 * @param {Number} ms
 * @return {String}
 * @api private
 */

function fmtLong(ms) {
  return plural(ms, d, 'day') ||
    plural(ms, h, 'hour') ||
    plural(ms, m, 'minute') ||
    plural(ms, s, 'second') ||
    ms + ' ms';
}

/**
 * Pluralization helper.
 */

function plural(ms, n, name) {
  if (ms < n) {
    return;
  }
  if (ms < n * 1.5) {
    return Math.floor(ms / n) + ' ' + name;
  }
  return Math.ceil(ms / n) + ' ' + name + 's';
}


/***/ }),

/***/ "./node_modules/node-libs-browser/node_modules/buffer/index.js":
/*!*********************************************************************!*\
  !*** ./node_modules/node-libs-browser/node_modules/buffer/index.js ***!
  \*********************************************************************/
/*! no static exports found */
/*! ModuleConcatenation bailout: Module is not an ECMAScript module */
/***/ (function(module, exports, __webpack_require__) {

"use strict";
/* WEBPACK VAR INJECTION */(function(global) {/*!
 * The buffer module from node.js, for the browser.
 *
 * @author   Feross Aboukhadijeh <feross@feross.org> <http://feross.org>
 * @license  MIT
 */
/* eslint-disable no-proto */



var base64 = __webpack_require__(/*! base64-js */ "./node_modules/base64-js/index.js")
var ieee754 = __webpack_require__(/*! ieee754 */ "./node_modules/ieee754/index.js")
var isArray = __webpack_require__(/*! isarray */ "./node_modules/isarray/index.js")

exports.Buffer = Buffer
exports.SlowBuffer = SlowBuffer
exports.INSPECT_MAX_BYTES = 50

/**
 * If `Buffer.TYPED_ARRAY_SUPPORT`:
 *   === true    Use Uint8Array implementation (fastest)
 *   === false   Use Object implementation (most compatible, even IE6)
 *
 * Browsers that support typed arrays are IE 10+, Firefox 4+, Chrome 7+, Safari 5.1+,
 * Opera 11.6+, iOS 4.2+.
 *
 * Due to various browser bugs, sometimes the Object implementation will be used even
 * when the browser supports typed arrays.
 *
 * Note:
 *
 *   - Firefox 4-29 lacks support for adding new properties to `Uint8Array` instances,
 *     See: https://bugzilla.mozilla.org/show_bug.cgi?id=695438.
 *
 *   - Chrome 9-10 is missing the `TypedArray.prototype.subarray` function.
 *
 *   - IE10 has a broken `TypedArray.prototype.subarray` function which returns arrays of
 *     incorrect length in some situations.

 * We detect these buggy browsers and set `Buffer.TYPED_ARRAY_SUPPORT` to `false` so they
 * get the Object implementation, which is slower but behaves correctly.
 */
Buffer.TYPED_ARRAY_SUPPORT = global.TYPED_ARRAY_SUPPORT !== undefined
  ? global.TYPED_ARRAY_SUPPORT
  : typedArraySupport()

/*
 * Export kMaxLength after typed array support is determined.
 */
exports.kMaxLength = kMaxLength()

function typedArraySupport () {
  try {
    var arr = new Uint8Array(1)
    arr.__proto__ = {__proto__: Uint8Array.prototype, foo: function () { return 42 }}
    return arr.foo() === 42 && // typed array instances can be augmented
        typeof arr.subarray === 'function' && // chrome 9-10 lack `subarray`
        arr.subarray(1, 1).byteLength === 0 // ie10 has broken `subarray`
  } catch (e) {
    return false
  }
}

function kMaxLength () {
  return Buffer.TYPED_ARRAY_SUPPORT
    ? 0x7fffffff
    : 0x3fffffff
}

function createBuffer (that, length) {
  if (kMaxLength() < length) {
    throw new RangeError('Invalid typed array length')
  }
  if (Buffer.TYPED_ARRAY_SUPPORT) {
    // Return an augmented `Uint8Array` instance, for best performance
    that = new Uint8Array(length)
    that.__proto__ = Buffer.prototype
  } else {
    // Fallback: Return an object instance of the Buffer class
    if (that === null) {
      that = new Buffer(length)
    }
    that.length = length
  }

  return that
}

/**
 * The Buffer constructor returns instances of `Uint8Array` that have their
 * prototype changed to `Buffer.prototype`. Furthermore, `Buffer` is a subclass of
 * `Uint8Array`, so the returned instances will have all the node `Buffer` methods
 * and the `Uint8Array` methods. Square bracket notation works as expected -- it
 * returns a single octet.
 *
 * The `Uint8Array` prototype remains unmodified.
 */

function Buffer (arg, encodingOrOffset, length) {
  if (!Buffer.TYPED_ARRAY_SUPPORT && !(this instanceof Buffer)) {
    return new Buffer(arg, encodingOrOffset, length)
  }

  // Common case.
  if (typeof arg === 'number') {
    if (typeof encodingOrOffset === 'string') {
      throw new Error(
        'If encoding is specified then the first argument must be a string'
      )
    }
    return allocUnsafe(this, arg)
  }
  return from(this, arg, encodingOrOffset, length)
}

Buffer.poolSize = 8192 // not used by this implementation

// TODO: Legacy, not needed anymore. Remove in next major version.
Buffer._augment = function (arr) {
  arr.__proto__ = Buffer.prototype
  return arr
}

function from (that, value, encodingOrOffset, length) {
  if (typeof value === 'number') {
    throw new TypeError('"value" argument must not be a number')
  }

  if (typeof ArrayBuffer !== 'undefined' && value instanceof ArrayBuffer) {
    return fromArrayBuffer(that, value, encodingOrOffset, length)
  }

  if (typeof value === 'string') {
    return fromString(that, value, encodingOrOffset)
  }

  return fromObject(that, value)
}

/**
 * Functionally equivalent to Buffer(arg, encoding) but throws a TypeError
 * if value is a number.
 * Buffer.from(str[, encoding])
 * Buffer.from(array)
 * Buffer.from(buffer)
 * Buffer.from(arrayBuffer[, byteOffset[, length]])
 **/
Buffer.from = function (value, encodingOrOffset, length) {
  return from(null, value, encodingOrOffset, length)
}

if (Buffer.TYPED_ARRAY_SUPPORT) {
  Buffer.prototype.__proto__ = Uint8Array.prototype
  Buffer.__proto__ = Uint8Array
  if (typeof Symbol !== 'undefined' && Symbol.species &&
      Buffer[Symbol.species] === Buffer) {
    // Fix subarray() in ES2016. See: https://github.com/feross/buffer/pull/97
    Object.defineProperty(Buffer, Symbol.species, {
      value: null,
      configurable: true
    })
  }
}

function assertSize (size) {
  if (typeof size !== 'number') {
    throw new TypeError('"size" argument must be a number')
  } else if (size < 0) {
    throw new RangeError('"size" argument must not be negative')
  }
}

function alloc (that, size, fill, encoding) {
  assertSize(size)
  if (size <= 0) {
    return createBuffer(that, size)
  }
  if (fill !== undefined) {
    // Only pay attention to encoding if it's a string. This
    // prevents accidentally sending in a number that would
    // be interpretted as a start offset.
    return typeof encoding === 'string'
      ? createBuffer(that, size).fill(fill, encoding)
      : createBuffer(that, size).fill(fill)
  }
  return createBuffer(that, size)
}

/**
 * Creates a new filled Buffer instance.
 * alloc(size[, fill[, encoding]])
 **/
Buffer.alloc = function (size, fill, encoding) {
  return alloc(null, size, fill, encoding)
}

function allocUnsafe (that, size) {
  assertSize(size)
  that = createBuffer(that, size < 0 ? 0 : checked(size) | 0)
  if (!Buffer.TYPED_ARRAY_SUPPORT) {
    for (var i = 0; i < size; ++i) {
      that[i] = 0
    }
  }
  return that
}

/**
 * Equivalent to Buffer(num), by default creates a non-zero-filled Buffer instance.
 * */
Buffer.allocUnsafe = function (size) {
  return allocUnsafe(null, size)
}
/**
 * Equivalent to SlowBuffer(num), by default creates a non-zero-filled Buffer instance.
 */
Buffer.allocUnsafeSlow = function (size) {
  return allocUnsafe(null, size)
}

function fromString (that, string, encoding) {
  if (typeof encoding !== 'string' || encoding === '') {
    encoding = 'utf8'
  }

  if (!Buffer.isEncoding(encoding)) {
    throw new TypeError('"encoding" must be a valid string encoding')
  }

  var length = byteLength(string, encoding) | 0
  that = createBuffer(that, length)

  var actual = that.write(string, encoding)

  if (actual !== length) {
    // Writing a hex string, for example, that contains invalid characters will
    // cause everything after the first invalid character to be ignored. (e.g.
    // 'abxxcd' will be treated as 'ab')
    that = that.slice(0, actual)
  }

  return that
}

function fromArrayLike (that, array) {
  var length = array.length < 0 ? 0 : checked(array.length) | 0
  that = createBuffer(that, length)
  for (var i = 0; i < length; i += 1) {
    that[i] = array[i] & 255
  }
  return that
}

function fromArrayBuffer (that, array, byteOffset, length) {
  array.byteLength // this throws if `array` is not a valid ArrayBuffer

  if (byteOffset < 0 || array.byteLength < byteOffset) {
    throw new RangeError('\'offset\' is out of bounds')
  }

  if (array.byteLength < byteOffset + (length || 0)) {
    throw new RangeError('\'length\' is out of bounds')
  }

  if (byteOffset === undefined && length === undefined) {
    array = new Uint8Array(array)
  } else if (length === undefined) {
    array = new Uint8Array(array, byteOffset)
  } else {
    array = new Uint8Array(array, byteOffset, length)
  }

  if (Buffer.TYPED_ARRAY_SUPPORT) {
    // Return an augmented `Uint8Array` instance, for best performance
    that = array
    that.__proto__ = Buffer.prototype
  } else {
    // Fallback: Return an object instance of the Buffer class
    that = fromArrayLike(that, array)
  }
  return that
}

function fromObject (that, obj) {
  if (Buffer.isBuffer(obj)) {
    var len = checked(obj.length) | 0
    that = createBuffer(that, len)

    if (that.length === 0) {
      return that
    }

    obj.copy(that, 0, 0, len)
    return that
  }

  if (obj) {
    if ((typeof ArrayBuffer !== 'undefined' &&
        obj.buffer instanceof ArrayBuffer) || 'length' in obj) {
      if (typeof obj.length !== 'number' || isnan(obj.length)) {
        return createBuffer(that, 0)
      }
      return fromArrayLike(that, obj)
    }

    if (obj.type === 'Buffer' && isArray(obj.data)) {
      return fromArrayLike(that, obj.data)
    }
  }

  throw new TypeError('First argument must be a string, Buffer, ArrayBuffer, Array, or array-like object.')
}

function checked (length) {
  // Note: cannot use `length < kMaxLength()` here because that fails when
  // length is NaN (which is otherwise coerced to zero.)
  if (length >= kMaxLength()) {
    throw new RangeError('Attempt to allocate Buffer larger than maximum ' +
                         'size: 0x' + kMaxLength().toString(16) + ' bytes')
  }
  return length | 0
}

function SlowBuffer (length) {
  if (+length != length) { // eslint-disable-line eqeqeq
    length = 0
  }
  return Buffer.alloc(+length)
}

Buffer.isBuffer = function isBuffer (b) {
  return !!(b != null && b._isBuffer)
}

Buffer.compare = function compare (a, b) {
  if (!Buffer.isBuffer(a) || !Buffer.isBuffer(b)) {
    throw new TypeError('Arguments must be Buffers')
  }

  if (a === b) return 0

  var x = a.length
  var y = b.length

  for (var i = 0, len = Math.min(x, y); i < len; ++i) {
    if (a[i] !== b[i]) {
      x = a[i]
      y = b[i]
      break
    }
  }

  if (x < y) return -1
  if (y < x) return 1
  return 0
}

Buffer.isEncoding = function isEncoding (encoding) {
  switch (String(encoding).toLowerCase()) {
    case 'hex':
    case 'utf8':
    case 'utf-8':
    case 'ascii':
    case 'latin1':
    case 'binary':
    case 'base64':
    case 'ucs2':
    case 'ucs-2':
    case 'utf16le':
    case 'utf-16le':
      return true
    default:
      return false
  }
}

Buffer.concat = function concat (list, length) {
  if (!isArray(list)) {
    throw new TypeError('"list" argument must be an Array of Buffers')
  }

  if (list.length === 0) {
    return Buffer.alloc(0)
  }

  var i
  if (length === undefined) {
    length = 0
    for (i = 0; i < list.length; ++i) {
      length += list[i].length
    }
  }

  var buffer = Buffer.allocUnsafe(length)
  var pos = 0
  for (i = 0; i < list.length; ++i) {
    var buf = list[i]
    if (!Buffer.isBuffer(buf)) {
      throw new TypeError('"list" argument must be an Array of Buffers')
    }
    buf.copy(buffer, pos)
    pos += buf.length
  }
  return buffer
}

function byteLength (string, encoding) {
  if (Buffer.isBuffer(string)) {
    return string.length
  }
  if (typeof ArrayBuffer !== 'undefined' && typeof ArrayBuffer.isView === 'function' &&
      (ArrayBuffer.isView(string) || string instanceof ArrayBuffer)) {
    return string.byteLength
  }
  if (typeof string !== 'string') {
    string = '' + string
  }

  var len = string.length
  if (len === 0) return 0

  // Use a for loop to avoid recursion
  var loweredCase = false
  for (;;) {
    switch (encoding) {
      case 'ascii':
      case 'latin1':
      case 'binary':
        return len
      case 'utf8':
      case 'utf-8':
      case undefined:
        return utf8ToBytes(string).length
      case 'ucs2':
      case 'ucs-2':
      case 'utf16le':
      case 'utf-16le':
        return len * 2
      case 'hex':
        return len >>> 1
      case 'base64':
        return base64ToBytes(string).length
      default:
        if (loweredCase) return utf8ToBytes(string).length // assume utf8
        encoding = ('' + encoding).toLowerCase()
        loweredCase = true
    }
  }
}
Buffer.byteLength = byteLength

function slowToString (encoding, start, end) {
  var loweredCase = false

  // No need to verify that "this.length <= MAX_UINT32" since it's a read-only
  // property of a typed array.

  // This behaves neither like String nor Uint8Array in that we set start/end
  // to their upper/lower bounds if the value passed is out of range.
  // undefined is handled specially as per ECMA-262 6th Edition,
  // Section 13.3.3.7 Runtime Semantics: KeyedBindingInitialization.
  if (start === undefined || start < 0) {
    start = 0
  }
  // Return early if start > this.length. Done here to prevent potential uint32
  // coercion fail below.
  if (start > this.length) {
    return ''
  }

  if (end === undefined || end > this.length) {
    end = this.length
  }

  if (end <= 0) {
    return ''
  }

  // Force coersion to uint32. This will also coerce falsey/NaN values to 0.
  end >>>= 0
  start >>>= 0

  if (end <= start) {
    return ''
  }

  if (!encoding) encoding = 'utf8'

  while (true) {
    switch (encoding) {
      case 'hex':
        return hexSlice(this, start, end)

      case 'utf8':
      case 'utf-8':
        return utf8Slice(this, start, end)

      case 'ascii':
        return asciiSlice(this, start, end)

      case 'latin1':
      case 'binary':
        return latin1Slice(this, start, end)

      case 'base64':
        return base64Slice(this, start, end)

      case 'ucs2':
      case 'ucs-2':
      case 'utf16le':
      case 'utf-16le':
        return utf16leSlice(this, start, end)

      default:
        if (loweredCase) throw new TypeError('Unknown encoding: ' + encoding)
        encoding = (encoding + '').toLowerCase()
        loweredCase = true
    }
  }
}

// The property is used by `Buffer.isBuffer` and `is-buffer` (in Safari 5-7) to detect
// Buffer instances.
Buffer.prototype._isBuffer = true

function swap (b, n, m) {
  var i = b[n]
  b[n] = b[m]
  b[m] = i
}

Buffer.prototype.swap16 = function swap16 () {
  var len = this.length
  if (len % 2 !== 0) {
    throw new RangeError('Buffer size must be a multiple of 16-bits')
  }
  for (var i = 0; i < len; i += 2) {
    swap(this, i, i + 1)
  }
  return this
}

Buffer.prototype.swap32 = function swap32 () {
  var len = this.length
  if (len % 4 !== 0) {
    throw new RangeError('Buffer size must be a multiple of 32-bits')
  }
  for (var i = 0; i < len; i += 4) {
    swap(this, i, i + 3)
    swap(this, i + 1, i + 2)
  }
  return this
}

Buffer.prototype.swap64 = function swap64 () {
  var len = this.length
  if (len % 8 !== 0) {
    throw new RangeError('Buffer size must be a multiple of 64-bits')
  }
  for (var i = 0; i < len; i += 8) {
    swap(this, i, i + 7)
    swap(this, i + 1, i + 6)
    swap(this, i + 2, i + 5)
    swap(this, i + 3, i + 4)
  }
  return this
}

Buffer.prototype.toString = function toString () {
  var length = this.length | 0
  if (length === 0) return ''
  if (arguments.length === 0) return utf8Slice(this, 0, length)
  return slowToString.apply(this, arguments)
}

Buffer.prototype.equals = function equals (b) {
  if (!Buffer.isBuffer(b)) throw new TypeError('Argument must be a Buffer')
  if (this === b) return true
  return Buffer.compare(this, b) === 0
}

Buffer.prototype.inspect = function inspect () {
  var str = ''
  var max = exports.INSPECT_MAX_BYTES
  if (this.length > 0) {
    str = this.toString('hex', 0, max).match(/.{2}/g).join(' ')
    if (this.length > max) str += ' ... '
  }
  return '<Buffer ' + str + '>'
}

Buffer.prototype.compare = function compare (target, start, end, thisStart, thisEnd) {
  if (!Buffer.isBuffer(target)) {
    throw new TypeError('Argument must be a Buffer')
  }

  if (start === undefined) {
    start = 0
  }
  if (end === undefined) {
    end = target ? target.length : 0
  }
  if (thisStart === undefined) {
    thisStart = 0
  }
  if (thisEnd === undefined) {
    thisEnd = this.length
  }

  if (start < 0 || end > target.length || thisStart < 0 || thisEnd > this.length) {
    throw new RangeError('out of range index')
  }

  if (thisStart >= thisEnd && start >= end) {
    return 0
  }
  if (thisStart >= thisEnd) {
    return -1
  }
  if (start >= end) {
    return 1
  }

  start >>>= 0
  end >>>= 0
  thisStart >>>= 0
  thisEnd >>>= 0

  if (this === target) return 0

  var x = thisEnd - thisStart
  var y = end - start
  var len = Math.min(x, y)

  var thisCopy = this.slice(thisStart, thisEnd)
  var targetCopy = target.slice(start, end)

  for (var i = 0; i < len; ++i) {
    if (thisCopy[i] !== targetCopy[i]) {
      x = thisCopy[i]
      y = targetCopy[i]
      break
    }
  }

  if (x < y) return -1
  if (y < x) return 1
  return 0
}

// Finds either the first index of `val` in `buffer` at offset >= `byteOffset`,
// OR the last index of `val` in `buffer` at offset <= `byteOffset`.
//
// Arguments:
// - buffer - a Buffer to search
// - val - a string, Buffer, or number
// - byteOffset - an index into `buffer`; will be clamped to an int32
// - encoding - an optional encoding, relevant is val is a string
// - dir - true for indexOf, false for lastIndexOf
function bidirectionalIndexOf (buffer, val, byteOffset, encoding, dir) {
  // Empty buffer means no match
  if (buffer.length === 0) return -1

  // Normalize byteOffset
  if (typeof byteOffset === 'string') {
    encoding = byteOffset
    byteOffset = 0
  } else if (byteOffset > 0x7fffffff) {
    byteOffset = 0x7fffffff
  } else if (byteOffset < -0x80000000) {
    byteOffset = -0x80000000
  }
  byteOffset = +byteOffset  // Coerce to Number.
  if (isNaN(byteOffset)) {
    // byteOffset: it it's undefined, null, NaN, "foo", etc, search whole buffer
    byteOffset = dir ? 0 : (buffer.length - 1)
  }

  // Normalize byteOffset: negative offsets start from the end of the buffer
  if (byteOffset < 0) byteOffset = buffer.length + byteOffset
  if (byteOffset >= buffer.length) {
    if (dir) return -1
    else byteOffset = buffer.length - 1
  } else if (byteOffset < 0) {
    if (dir) byteOffset = 0
    else return -1
  }

  // Normalize val
  if (typeof val === 'string') {
    val = Buffer.from(val, encoding)
  }

  // Finally, search either indexOf (if dir is true) or lastIndexOf
  if (Buffer.isBuffer(val)) {
    // Special case: looking for empty string/buffer always fails
    if (val.length === 0) {
      return -1
    }
    return arrayIndexOf(buffer, val, byteOffset, encoding, dir)
  } else if (typeof val === 'number') {
    val = val & 0xFF // Search for a byte value [0-255]
    if (Buffer.TYPED_ARRAY_SUPPORT &&
        typeof Uint8Array.prototype.indexOf === 'function') {
      if (dir) {
        return Uint8Array.prototype.indexOf.call(buffer, val, byteOffset)
      } else {
        return Uint8Array.prototype.lastIndexOf.call(buffer, val, byteOffset)
      }
    }
    return arrayIndexOf(buffer, [ val ], byteOffset, encoding, dir)
  }

  throw new TypeError('val must be string, number or Buffer')
}

function arrayIndexOf (arr, val, byteOffset, encoding, dir) {
  var indexSize = 1
  var arrLength = arr.length
  var valLength = val.length

  if (encoding !== undefined) {
    encoding = String(encoding).toLowerCase()
    if (encoding === 'ucs2' || encoding === 'ucs-2' ||
        encoding === 'utf16le' || encoding === 'utf-16le') {
      if (arr.length < 2 || val.length < 2) {
        return -1
      }
      indexSize = 2
      arrLength /= 2
      valLength /= 2
      byteOffset /= 2
    }
  }

  function read (buf, i) {
    if (indexSize === 1) {
      return buf[i]
    } else {
      return buf.readUInt16BE(i * indexSize)
    }
  }

  var i
  if (dir) {
    var foundIndex = -1
    for (i = byteOffset; i < arrLength; i++) {
      if (read(arr, i) === read(val, foundIndex === -1 ? 0 : i - foundIndex)) {
        if (foundIndex === -1) foundIndex = i
        if (i - foundIndex + 1 === valLength) return foundIndex * indexSize
      } else {
        if (foundIndex !== -1) i -= i - foundIndex
        foundIndex = -1
      }
    }
  } else {
    if (byteOffset + valLength > arrLength) byteOffset = arrLength - valLength
    for (i = byteOffset; i >= 0; i--) {
      var found = true
      for (var j = 0; j < valLength; j++) {
        if (read(arr, i + j) !== read(val, j)) {
          found = false
          break
        }
      }
      if (found) return i
    }
  }

  return -1
}

Buffer.prototype.includes = function includes (val, byteOffset, encoding) {
  return this.indexOf(val, byteOffset, encoding) !== -1
}

Buffer.prototype.indexOf = function indexOf (val, byteOffset, encoding) {
  return bidirectionalIndexOf(this, val, byteOffset, encoding, true)
}

Buffer.prototype.lastIndexOf = function lastIndexOf (val, byteOffset, encoding) {
  return bidirectionalIndexOf(this, val, byteOffset, encoding, false)
}

function hexWrite (buf, string, offset, length) {
  offset = Number(offset) || 0
  var remaining = buf.length - offset
  if (!length) {
    length = remaining
  } else {
    length = Number(length)
    if (length > remaining) {
      length = remaining
    }
  }

  // must be an even number of digits
  var strLen = string.length
  if (strLen % 2 !== 0) throw new TypeError('Invalid hex string')

  if (length > strLen / 2) {
    length = strLen / 2
  }
  for (var i = 0; i < length; ++i) {
    var parsed = parseInt(string.substr(i * 2, 2), 16)
    if (isNaN(parsed)) return i
    buf[offset + i] = parsed
  }
  return i
}

function utf8Write (buf, string, offset, length) {
  return blitBuffer(utf8ToBytes(string, buf.length - offset), buf, offset, length)
}

function asciiWrite (buf, string, offset, length) {
  return blitBuffer(asciiToBytes(string), buf, offset, length)
}

function latin1Write (buf, string, offset, length) {
  return asciiWrite(buf, string, offset, length)
}

function base64Write (buf, string, offset, length) {
  return blitBuffer(base64ToBytes(string), buf, offset, length)
}

function ucs2Write (buf, string, offset, length) {
  return blitBuffer(utf16leToBytes(string, buf.length - offset), buf, offset, length)
}

Buffer.prototype.write = function write (string, offset, length, encoding) {
  // Buffer#write(string)
  if (offset === undefined) {
    encoding = 'utf8'
    length = this.length
    offset = 0
  // Buffer#write(string, encoding)
  } else if (length === undefined && typeof offset === 'string') {
    encoding = offset
    length = this.length
    offset = 0
  // Buffer#write(string, offset[, length][, encoding])
  } else if (isFinite(offset)) {
    offset = offset | 0
    if (isFinite(length)) {
      length = length | 0
      if (encoding === undefined) encoding = 'utf8'
    } else {
      encoding = length
      length = undefined
    }
  // legacy write(string, encoding, offset, length) - remove in v0.13
  } else {
    throw new Error(
      'Buffer.write(string, encoding, offset[, length]) is no longer supported'
    )
  }

  var remaining = this.length - offset
  if (length === undefined || length > remaining) length = remaining

  if ((string.length > 0 && (length < 0 || offset < 0)) || offset > this.length) {
    throw new RangeError('Attempt to write outside buffer bounds')
  }

  if (!encoding) encoding = 'utf8'

  var loweredCase = false
  for (;;) {
    switch (encoding) {
      case 'hex':
        return hexWrite(this, string, offset, length)

      case 'utf8':
      case 'utf-8':
        return utf8Write(this, string, offset, length)

      case 'ascii':
        return asciiWrite(this, string, offset, length)

      case 'latin1':
      case 'binary':
        return latin1Write(this, string, offset, length)

      case 'base64':
        // Warning: maxLength not taken into account in base64Write
        return base64Write(this, string, offset, length)

      case 'ucs2':
      case 'ucs-2':
      case 'utf16le':
      case 'utf-16le':
        return ucs2Write(this, string, offset, length)

      default:
        if (loweredCase) throw new TypeError('Unknown encoding: ' + encoding)
        encoding = ('' + encoding).toLowerCase()
        loweredCase = true
    }
  }
}

Buffer.prototype.toJSON = function toJSON () {
  return {
    type: 'Buffer',
    data: Array.prototype.slice.call(this._arr || this, 0)
  }
}

function base64Slice (buf, start, end) {
  if (start === 0 && end === buf.length) {
    return base64.fromByteArray(buf)
  } else {
    return base64.fromByteArray(buf.slice(start, end))
  }
}

function utf8Slice (buf, start, end) {
  end = Math.min(buf.length, end)
  var res = []

  var i = start
  while (i < end) {
    var firstByte = buf[i]
    var codePoint = null
    var bytesPerSequence = (firstByte > 0xEF) ? 4
      : (firstByte > 0xDF) ? 3
      : (firstByte > 0xBF) ? 2
      : 1

    if (i + bytesPerSequence <= end) {
      var secondByte, thirdByte, fourthByte, tempCodePoint

      switch (bytesPerSequence) {
        case 1:
          if (firstByte < 0x80) {
            codePoint = firstByte
          }
          break
        case 2:
          secondByte = buf[i + 1]
          if ((secondByte & 0xC0) === 0x80) {
            tempCodePoint = (firstByte & 0x1F) << 0x6 | (secondByte & 0x3F)
            if (tempCodePoint > 0x7F) {
              codePoint = tempCodePoint
            }
          }
          break
        case 3:
          secondByte = buf[i + 1]
          thirdByte = buf[i + 2]
          if ((secondByte & 0xC0) === 0x80 && (thirdByte & 0xC0) === 0x80) {
            tempCodePoint = (firstByte & 0xF) << 0xC | (secondByte & 0x3F) << 0x6 | (thirdByte & 0x3F)
            if (tempCodePoint > 0x7FF && (tempCodePoint < 0xD800 || tempCodePoint > 0xDFFF)) {
              codePoint = tempCodePoint
            }
          }
          break
        case 4:
          secondByte = buf[i + 1]
          thirdByte = buf[i + 2]
          fourthByte = buf[i + 3]
          if ((secondByte & 0xC0) === 0x80 && (thirdByte & 0xC0) === 0x80 && (fourthByte & 0xC0) === 0x80) {
            tempCodePoint = (firstByte & 0xF) << 0x12 | (secondByte & 0x3F) << 0xC | (thirdByte & 0x3F) << 0x6 | (fourthByte & 0x3F)
            if (tempCodePoint > 0xFFFF && tempCodePoint < 0x110000) {
              codePoint = tempCodePoint
            }
          }
      }
    }

    if (codePoint === null) {
      // we did not generate a valid codePoint so insert a
      // replacement char (U+FFFD) and advance only 1 byte
      codePoint = 0xFFFD
      bytesPerSequence = 1
    } else if (codePoint > 0xFFFF) {
      // encode to utf16 (surrogate pair dance)
      codePoint -= 0x10000
      res.push(codePoint >>> 10 & 0x3FF | 0xD800)
      codePoint = 0xDC00 | codePoint & 0x3FF
    }

    res.push(codePoint)
    i += bytesPerSequence
  }

  return decodeCodePointsArray(res)
}

// Based on http://stackoverflow.com/a/22747272/680742, the browser with
// the lowest limit is Chrome, with 0x10000 args.
// We go 1 magnitude less, for safety
var MAX_ARGUMENTS_LENGTH = 0x1000

function decodeCodePointsArray (codePoints) {
  var len = codePoints.length
  if (len <= MAX_ARGUMENTS_LENGTH) {
    return String.fromCharCode.apply(String, codePoints) // avoid extra slice()
  }

  // Decode in chunks to avoid "call stack size exceeded".
  var res = ''
  var i = 0
  while (i < len) {
    res += String.fromCharCode.apply(
      String,
      codePoints.slice(i, i += MAX_ARGUMENTS_LENGTH)
    )
  }
  return res
}

function asciiSlice (buf, start, end) {
  var ret = ''
  end = Math.min(buf.length, end)

  for (var i = start; i < end; ++i) {
    ret += String.fromCharCode(buf[i] & 0x7F)
  }
  return ret
}

function latin1Slice (buf, start, end) {
  var ret = ''
  end = Math.min(buf.length, end)

  for (var i = start; i < end; ++i) {
    ret += String.fromCharCode(buf[i])
  }
  return ret
}

function hexSlice (buf, start, end) {
  var len = buf.length

  if (!start || start < 0) start = 0
  if (!end || end < 0 || end > len) end = len

  var out = ''
  for (var i = start; i < end; ++i) {
    out += toHex(buf[i])
  }
  return out
}

function utf16leSlice (buf, start, end) {
  var bytes = buf.slice(start, end)
  var res = ''
  for (var i = 0; i < bytes.length; i += 2) {
    res += String.fromCharCode(bytes[i] + bytes[i + 1] * 256)
  }
  return res
}

Buffer.prototype.slice = function slice (start, end) {
  var len = this.length
  start = ~~start
  end = end === undefined ? len : ~~end

  if (start < 0) {
    start += len
    if (start < 0) start = 0
  } else if (start > len) {
    start = len
  }

  if (end < 0) {
    end += len
    if (end < 0) end = 0
  } else if (end > len) {
    end = len
  }

  if (end < start) end = start

  var newBuf
  if (Buffer.TYPED_ARRAY_SUPPORT) {
    newBuf = this.subarray(start, end)
    newBuf.__proto__ = Buffer.prototype
  } else {
    var sliceLen = end - start
    newBuf = new Buffer(sliceLen, undefined)
    for (var i = 0; i < sliceLen; ++i) {
      newBuf[i] = this[i + start]
    }
  }

  return newBuf
}

/*
 * Need to make sure that buffer isn't trying to write out of bounds.
 */
function checkOffset (offset, ext, length) {
  if ((offset % 1) !== 0 || offset < 0) throw new RangeError('offset is not uint')
  if (offset + ext > length) throw new RangeError('Trying to access beyond buffer length')
}

Buffer.prototype.readUIntLE = function readUIntLE (offset, byteLength, noAssert) {
  offset = offset | 0
  byteLength = byteLength | 0
  if (!noAssert) checkOffset(offset, byteLength, this.length)

  var val = this[offset]
  var mul = 1
  var i = 0
  while (++i < byteLength && (mul *= 0x100)) {
    val += this[offset + i] * mul
  }

  return val
}

Buffer.prototype.readUIntBE = function readUIntBE (offset, byteLength, noAssert) {
  offset = offset | 0
  byteLength = byteLength | 0
  if (!noAssert) {
    checkOffset(offset, byteLength, this.length)
  }

  var val = this[offset + --byteLength]
  var mul = 1
  while (byteLength > 0 && (mul *= 0x100)) {
    val += this[offset + --byteLength] * mul
  }

  return val
}

Buffer.prototype.readUInt8 = function readUInt8 (offset, noAssert) {
  if (!noAssert) checkOffset(offset, 1, this.length)
  return this[offset]
}

Buffer.prototype.readUInt16LE = function readUInt16LE (offset, noAssert) {
  if (!noAssert) checkOffset(offset, 2, this.length)
  return this[offset] | (this[offset + 1] << 8)
}

Buffer.prototype.readUInt16BE = function readUInt16BE (offset, noAssert) {
  if (!noAssert) checkOffset(offset, 2, this.length)
  return (this[offset] << 8) | this[offset + 1]
}

Buffer.prototype.readUInt32LE = function readUInt32LE (offset, noAssert) {
  if (!noAssert) checkOffset(offset, 4, this.length)

  return ((this[offset]) |
      (this[offset + 1] << 8) |
      (this[offset + 2] << 16)) +
      (this[offset + 3] * 0x1000000)
}

Buffer.prototype.readUInt32BE = function readUInt32BE (offset, noAssert) {
  if (!noAssert) checkOffset(offset, 4, this.length)

  return (this[offset] * 0x1000000) +
    ((this[offset + 1] << 16) |
    (this[offset + 2] << 8) |
    this[offset + 3])
}

Buffer.prototype.readIntLE = function readIntLE (offset, byteLength, noAssert) {
  offset = offset | 0
  byteLength = byteLength | 0
  if (!noAssert) checkOffset(offset, byteLength, this.length)

  var val = this[offset]
  var mul = 1
  var i = 0
  while (++i < byteLength && (mul *= 0x100)) {
    val += this[offset + i] * mul
  }
  mul *= 0x80

  if (val >= mul) val -= Math.pow(2, 8 * byteLength)

  return val
}

Buffer.prototype.readIntBE = function readIntBE (offset, byteLength, noAssert) {
  offset = offset | 0
  byteLength = byteLength | 0
  if (!noAssert) checkOffset(offset, byteLength, this.length)

  var i = byteLength
  var mul = 1
  var val = this[offset + --i]
  while (i > 0 && (mul *= 0x100)) {
    val += this[offset + --i] * mul
  }
  mul *= 0x80

  if (val >= mul) val -= Math.pow(2, 8 * byteLength)

  return val
}

Buffer.prototype.readInt8 = function readInt8 (offset, noAssert) {
  if (!noAssert) checkOffset(offset, 1, this.length)
  if (!(this[offset] & 0x80)) return (this[offset])
  return ((0xff - this[offset] + 1) * -1)
}

Buffer.prototype.readInt16LE = function readInt16LE (offset, noAssert) {
  if (!noAssert) checkOffset(offset, 2, this.length)
  var val = this[offset] | (this[offset + 1] << 8)
  return (val & 0x8000) ? val | 0xFFFF0000 : val
}

Buffer.prototype.readInt16BE = function readInt16BE (offset, noAssert) {
  if (!noAssert) checkOffset(offset, 2, this.length)
  var val = this[offset + 1] | (this[offset] << 8)
  return (val & 0x8000) ? val | 0xFFFF0000 : val
}

Buffer.prototype.readInt32LE = function readInt32LE (offset, noAssert) {
  if (!noAssert) checkOffset(offset, 4, this.length)

  return (this[offset]) |
    (this[offset + 1] << 8) |
    (this[offset + 2] << 16) |
    (this[offset + 3] << 24)
}

Buffer.prototype.readInt32BE = function readInt32BE (offset, noAssert) {
  if (!noAssert) checkOffset(offset, 4, this.length)

  return (this[offset] << 24) |
    (this[offset + 1] << 16) |
    (this[offset + 2] << 8) |
    (this[offset + 3])
}

Buffer.prototype.readFloatLE = function readFloatLE (offset, noAssert) {
  if (!noAssert) checkOffset(offset, 4, this.length)
  return ieee754.read(this, offset, true, 23, 4)
}

Buffer.prototype.readFloatBE = function readFloatBE (offset, noAssert) {
  if (!noAssert) checkOffset(offset, 4, this.length)
  return ieee754.read(this, offset, false, 23, 4)
}

Buffer.prototype.readDoubleLE = function readDoubleLE (offset, noAssert) {
  if (!noAssert) checkOffset(offset, 8, this.length)
  return ieee754.read(this, offset, true, 52, 8)
}

Buffer.prototype.readDoubleBE = function readDoubleBE (offset, noAssert) {
  if (!noAssert) checkOffset(offset, 8, this.length)
  return ieee754.read(this, offset, false, 52, 8)
}

function checkInt (buf, value, offset, ext, max, min) {
  if (!Buffer.isBuffer(buf)) throw new TypeError('"buffer" argument must be a Buffer instance')
  if (value > max || value < min) throw new RangeError('"value" argument is out of bounds')
  if (offset + ext > buf.length) throw new RangeError('Index out of range')
}

Buffer.prototype.writeUIntLE = function writeUIntLE (value, offset, byteLength, noAssert) {
  value = +value
  offset = offset | 0
  byteLength = byteLength | 0
  if (!noAssert) {
    var maxBytes = Math.pow(2, 8 * byteLength) - 1
    checkInt(this, value, offset, byteLength, maxBytes, 0)
  }

  var mul = 1
  var i = 0
  this[offset] = value & 0xFF
  while (++i < byteLength && (mul *= 0x100)) {
    this[offset + i] = (value / mul) & 0xFF
  }

  return offset + byteLength
}

Buffer.prototype.writeUIntBE = function writeUIntBE (value, offset, byteLength, noAssert) {
  value = +value
  offset = offset | 0
  byteLength = byteLength | 0
  if (!noAssert) {
    var maxBytes = Math.pow(2, 8 * byteLength) - 1
    checkInt(this, value, offset, byteLength, maxBytes, 0)
  }

  var i = byteLength - 1
  var mul = 1
  this[offset + i] = value & 0xFF
  while (--i >= 0 && (mul *= 0x100)) {
    this[offset + i] = (value / mul) & 0xFF
  }

  return offset + byteLength
}

Buffer.prototype.writeUInt8 = function writeUInt8 (value, offset, noAssert) {
  value = +value
  offset = offset | 0
  if (!noAssert) checkInt(this, value, offset, 1, 0xff, 0)
  if (!Buffer.TYPED_ARRAY_SUPPORT) value = Math.floor(value)
  this[offset] = (value & 0xff)
  return offset + 1
}

function objectWriteUInt16 (buf, value, offset, littleEndian) {
  if (value < 0) value = 0xffff + value + 1
  for (var i = 0, j = Math.min(buf.length - offset, 2); i < j; ++i) {
    buf[offset + i] = (value & (0xff << (8 * (littleEndian ? i : 1 - i)))) >>>
      (littleEndian ? i : 1 - i) * 8
  }
}

Buffer.prototype.writeUInt16LE = function writeUInt16LE (value, offset, noAssert) {
  value = +value
  offset = offset | 0
  if (!noAssert) checkInt(this, value, offset, 2, 0xffff, 0)
  if (Buffer.TYPED_ARRAY_SUPPORT) {
    this[offset] = (value & 0xff)
    this[offset + 1] = (value >>> 8)
  } else {
    objectWriteUInt16(this, value, offset, true)
  }
  return offset + 2
}

Buffer.prototype.writeUInt16BE = function writeUInt16BE (value, offset, noAssert) {
  value = +value
  offset = offset | 0
  if (!noAssert) checkInt(this, value, offset, 2, 0xffff, 0)
  if (Buffer.TYPED_ARRAY_SUPPORT) {
    this[offset] = (value >>> 8)
    this[offset + 1] = (value & 0xff)
  } else {
    objectWriteUInt16(this, value, offset, false)
  }
  return offset + 2
}

function objectWriteUInt32 (buf, value, offset, littleEndian) {
  if (value < 0) value = 0xffffffff + value + 1
  for (var i = 0, j = Math.min(buf.length - offset, 4); i < j; ++i) {
    buf[offset + i] = (value >>> (littleEndian ? i : 3 - i) * 8) & 0xff
  }
}

Buffer.prototype.writeUInt32LE = function writeUInt32LE (value, offset, noAssert) {
  value = +value
  offset = offset | 0
  if (!noAssert) checkInt(this, value, offset, 4, 0xffffffff, 0)
  if (Buffer.TYPED_ARRAY_SUPPORT) {
    this[offset + 3] = (value >>> 24)
    this[offset + 2] = (value >>> 16)
    this[offset + 1] = (value >>> 8)
    this[offset] = (value & 0xff)
  } else {
    objectWriteUInt32(this, value, offset, true)
  }
  return offset + 4
}

Buffer.prototype.writeUInt32BE = function writeUInt32BE (value, offset, noAssert) {
  value = +value
  offset = offset | 0
  if (!noAssert) checkInt(this, value, offset, 4, 0xffffffff, 0)
  if (Buffer.TYPED_ARRAY_SUPPORT) {
    this[offset] = (value >>> 24)
    this[offset + 1] = (value >>> 16)
    this[offset + 2] = (value >>> 8)
    this[offset + 3] = (value & 0xff)
  } else {
    objectWriteUInt32(this, value, offset, false)
  }
  return offset + 4
}

Buffer.prototype.writeIntLE = function writeIntLE (value, offset, byteLength, noAssert) {
  value = +value
  offset = offset | 0
  if (!noAssert) {
    var limit = Math.pow(2, 8 * byteLength - 1)

    checkInt(this, value, offset, byteLength, limit - 1, -limit)
  }

  var i = 0
  var mul = 1
  var sub = 0
  this[offset] = value & 0xFF
  while (++i < byteLength && (mul *= 0x100)) {
    if (value < 0 && sub === 0 && this[offset + i - 1] !== 0) {
      sub = 1
    }
    this[offset + i] = ((value / mul) >> 0) - sub & 0xFF
  }

  return offset + byteLength
}

Buffer.prototype.writeIntBE = function writeIntBE (value, offset, byteLength, noAssert) {
  value = +value
  offset = offset | 0
  if (!noAssert) {
    var limit = Math.pow(2, 8 * byteLength - 1)

    checkInt(this, value, offset, byteLength, limit - 1, -limit)
  }

  var i = byteLength - 1
  var mul = 1
  var sub = 0
  this[offset + i] = value & 0xFF
  while (--i >= 0 && (mul *= 0x100)) {
    if (value < 0 && sub === 0 && this[offset + i + 1] !== 0) {
      sub = 1
    }
    this[offset + i] = ((value / mul) >> 0) - sub & 0xFF
  }

  return offset + byteLength
}

Buffer.prototype.writeInt8 = function writeInt8 (value, offset, noAssert) {
  value = +value
  offset = offset | 0
  if (!noAssert) checkInt(this, value, offset, 1, 0x7f, -0x80)
  if (!Buffer.TYPED_ARRAY_SUPPORT) value = Math.floor(value)
  if (value < 0) value = 0xff + value + 1
  this[offset] = (value & 0xff)
  return offset + 1
}

Buffer.prototype.writeInt16LE = function writeInt16LE (value, offset, noAssert) {
  value = +value
  offset = offset | 0
  if (!noAssert) checkInt(this, value, offset, 2, 0x7fff, -0x8000)
  if (Buffer.TYPED_ARRAY_SUPPORT) {
    this[offset] = (value & 0xff)
    this[offset + 1] = (value >>> 8)
  } else {
    objectWriteUInt16(this, value, offset, true)
  }
  return offset + 2
}

Buffer.prototype.writeInt16BE = function writeInt16BE (value, offset, noAssert) {
  value = +value
  offset = offset | 0
  if (!noAssert) checkInt(this, value, offset, 2, 0x7fff, -0x8000)
  if (Buffer.TYPED_ARRAY_SUPPORT) {
    this[offset] = (value >>> 8)
    this[offset + 1] = (value & 0xff)
  } else {
    objectWriteUInt16(this, value, offset, false)
  }
  return offset + 2
}

Buffer.prototype.writeInt32LE = function writeInt32LE (value, offset, noAssert) {
  value = +value
  offset = offset | 0
  if (!noAssert) checkInt(this, value, offset, 4, 0x7fffffff, -0x80000000)
  if (Buffer.TYPED_ARRAY_SUPPORT) {
    this[offset] = (value & 0xff)
    this[offset + 1] = (value >>> 8)
    this[offset + 2] = (value >>> 16)
    this[offset + 3] = (value >>> 24)
  } else {
    objectWriteUInt32(this, value, offset, true)
  }
  return offset + 4
}

Buffer.prototype.writeInt32BE = function writeInt32BE (value, offset, noAssert) {
  value = +value
  offset = offset | 0
  if (!noAssert) checkInt(this, value, offset, 4, 0x7fffffff, -0x80000000)
  if (value < 0) value = 0xffffffff + value + 1
  if (Buffer.TYPED_ARRAY_SUPPORT) {
    this[offset] = (value >>> 24)
    this[offset + 1] = (value >>> 16)
    this[offset + 2] = (value >>> 8)
    this[offset + 3] = (value & 0xff)
  } else {
    objectWriteUInt32(this, value, offset, false)
  }
  return offset + 4
}

function checkIEEE754 (buf, value, offset, ext, max, min) {
  if (offset + ext > buf.length) throw new RangeError('Index out of range')
  if (offset < 0) throw new RangeError('Index out of range')
}

function writeFloat (buf, value, offset, littleEndian, noAssert) {
  if (!noAssert) {
    checkIEEE754(buf, value, offset, 4, 3.4028234663852886e+38, -3.4028234663852886e+38)
  }
  ieee754.write(buf, value, offset, littleEndian, 23, 4)
  return offset + 4
}

Buffer.prototype.writeFloatLE = function writeFloatLE (value, offset, noAssert) {
  return writeFloat(this, value, offset, true, noAssert)
}

Buffer.prototype.writeFloatBE = function writeFloatBE (value, offset, noAssert) {
  return writeFloat(this, value, offset, false, noAssert)
}

function writeDouble (buf, value, offset, littleEndian, noAssert) {
  if (!noAssert) {
    checkIEEE754(buf, value, offset, 8, 1.7976931348623157E+308, -1.7976931348623157E+308)
  }
  ieee754.write(buf, value, offset, littleEndian, 52, 8)
  return offset + 8
}

Buffer.prototype.writeDoubleLE = function writeDoubleLE (value, offset, noAssert) {
  return writeDouble(this, value, offset, true, noAssert)
}

Buffer.prototype.writeDoubleBE = function writeDoubleBE (value, offset, noAssert) {
  return writeDouble(this, value, offset, false, noAssert)
}

// copy(targetBuffer, targetStart=0, sourceStart=0, sourceEnd=buffer.length)
Buffer.prototype.copy = function copy (target, targetStart, start, end) {
  if (!start) start = 0
  if (!end && end !== 0) end = this.length
  if (targetStart >= target.length) targetStart = target.length
  if (!targetStart) targetStart = 0
  if (end > 0 && end < start) end = start

  // Copy 0 bytes; we're done
  if (end === start) return 0
  if (target.length === 0 || this.length === 0) return 0

  // Fatal error conditions
  if (targetStart < 0) {
    throw new RangeError('targetStart out of bounds')
  }
  if (start < 0 || start >= this.length) throw new RangeError('sourceStart out of bounds')
  if (end < 0) throw new RangeError('sourceEnd out of bounds')

  // Are we oob?
  if (end > this.length) end = this.length
  if (target.length - targetStart < end - start) {
    end = target.length - targetStart + start
  }

  var len = end - start
  var i

  if (this === target && start < targetStart && targetStart < end) {
    // descending copy from end
    for (i = len - 1; i >= 0; --i) {
      target[i + targetStart] = this[i + start]
    }
  } else if (len < 1000 || !Buffer.TYPED_ARRAY_SUPPORT) {
    // ascending copy from start
    for (i = 0; i < len; ++i) {
      target[i + targetStart] = this[i + start]
    }
  } else {
    Uint8Array.prototype.set.call(
      target,
      this.subarray(start, start + len),
      targetStart
    )
  }

  return len
}

// Usage:
//    buffer.fill(number[, offset[, end]])
//    buffer.fill(buffer[, offset[, end]])
//    buffer.fill(string[, offset[, end]][, encoding])
Buffer.prototype.fill = function fill (val, start, end, encoding) {
  // Handle string cases:
  if (typeof val === 'string') {
    if (typeof start === 'string') {
      encoding = start
      start = 0
      end = this.length
    } else if (typeof end === 'string') {
      encoding = end
      end = this.length
    }
    if (val.length === 1) {
      var code = val.charCodeAt(0)
      if (code < 256) {
        val = code
      }
    }
    if (encoding !== undefined && typeof encoding !== 'string') {
      throw new TypeError('encoding must be a string')
    }
    if (typeof encoding === 'string' && !Buffer.isEncoding(encoding)) {
      throw new TypeError('Unknown encoding: ' + encoding)
    }
  } else if (typeof val === 'number') {
    val = val & 255
  }

  // Invalid ranges are not set to a default, so can range check early.
  if (start < 0 || this.length < start || this.length < end) {
    throw new RangeError('Out of range index')
  }

  if (end <= start) {
    return this
  }

  start = start >>> 0
  end = end === undefined ? this.length : end >>> 0

  if (!val) val = 0

  var i
  if (typeof val === 'number') {
    for (i = start; i < end; ++i) {
      this[i] = val
    }
  } else {
    var bytes = Buffer.isBuffer(val)
      ? val
      : utf8ToBytes(new Buffer(val, encoding).toString())
    var len = bytes.length
    for (i = 0; i < end - start; ++i) {
      this[i + start] = bytes[i % len]
    }
  }

  return this
}

// HELPER FUNCTIONS
// ================

var INVALID_BASE64_RE = /[^+\/0-9A-Za-z-_]/g

function base64clean (str) {
  // Node strips out invalid characters like \n and \t from the string, base64-js does not
  str = stringtrim(str).replace(INVALID_BASE64_RE, '')
  // Node converts strings with length < 2 to ''
  if (str.length < 2) return ''
  // Node allows for non-padded base64 strings (missing trailing ===), base64-js does not
  while (str.length % 4 !== 0) {
    str = str + '='
  }
  return str
}

function stringtrim (str) {
  if (str.trim) return str.trim()
  return str.replace(/^\s+|\s+$/g, '')
}

function toHex (n) {
  if (n < 16) return '0' + n.toString(16)
  return n.toString(16)
}

function utf8ToBytes (string, units) {
  units = units || Infinity
  var codePoint
  var length = string.length
  var leadSurrogate = null
  var bytes = []

  for (var i = 0; i < length; ++i) {
    codePoint = string.charCodeAt(i)

    // is surrogate component
    if (codePoint > 0xD7FF && codePoint < 0xE000) {
      // last char was a lead
      if (!leadSurrogate) {
        // no lead yet
        if (codePoint > 0xDBFF) {
          // unexpected trail
          if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD)
          continue
        } else if (i + 1 === length) {
          // unpaired lead
          if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD)
          continue
        }

        // valid lead
        leadSurrogate = codePoint

        continue
      }

      // 2 leads in a row
      if (codePoint < 0xDC00) {
        if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD)
        leadSurrogate = codePoint
        continue
      }

      // valid surrogate pair
      codePoint = (leadSurrogate - 0xD800 << 10 | codePoint - 0xDC00) + 0x10000
    } else if (leadSurrogate) {
      // valid bmp char, but last char was a lead
      if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD)
    }

    leadSurrogate = null

    // encode utf8
    if (codePoint < 0x80) {
      if ((units -= 1) < 0) break
      bytes.push(codePoint)
    } else if (codePoint < 0x800) {
      if ((units -= 2) < 0) break
      bytes.push(
        codePoint >> 0x6 | 0xC0,
        codePoint & 0x3F | 0x80
      )
    } else if (codePoint < 0x10000) {
      if ((units -= 3) < 0) break
      bytes.push(
        codePoint >> 0xC | 0xE0,
        codePoint >> 0x6 & 0x3F | 0x80,
        codePoint & 0x3F | 0x80
      )
    } else if (codePoint < 0x110000) {
      if ((units -= 4) < 0) break
      bytes.push(
        codePoint >> 0x12 | 0xF0,
        codePoint >> 0xC & 0x3F | 0x80,
        codePoint >> 0x6 & 0x3F | 0x80,
        codePoint & 0x3F | 0x80
      )
    } else {
      throw new Error('Invalid code point')
    }
  }

  return bytes
}

function asciiToBytes (str) {
  var byteArray = []
  for (var i = 0; i < str.length; ++i) {
    // Node's code seems to be doing this and not & 0x7F..
    byteArray.push(str.charCodeAt(i) & 0xFF)
  }
  return byteArray
}

function utf16leToBytes (str, units) {
  var c, hi, lo
  var byteArray = []
  for (var i = 0; i < str.length; ++i) {
    if ((units -= 2) < 0) break

    c = str.charCodeAt(i)
    hi = c >> 8
    lo = c % 256
    byteArray.push(lo)
    byteArray.push(hi)
  }

  return byteArray
}

function base64ToBytes (str) {
  return base64.toByteArray(base64clean(str))
}

function blitBuffer (src, dst, offset, length) {
  for (var i = 0; i < length; ++i) {
    if ((i + offset >= dst.length) || (i >= src.length)) break
    dst[i + offset] = src[i]
  }
  return i
}

function isnan (val) {
  return val !== val // eslint-disable-line no-self-compare
}

/* WEBPACK VAR INJECTION */}.call(this, __webpack_require__(/*! ./../../../webpack/buildin/global.js */ "./node_modules/webpack/buildin/global.js")))

/***/ }),

/***/ "./node_modules/node-libs-browser/node_modules/events/events.js":
/*!**********************************************************************!*\
  !*** ./node_modules/node-libs-browser/node_modules/events/events.js ***!
  \**********************************************************************/
/*! no static exports found */
/*! ModuleConcatenation bailout: Module is not an ECMAScript module */
/***/ (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;
}


/***/ }),

/***/ "./node_modules/object-sizeof/byte_size.js":
/*!*************************************************!*\
  !*** ./node_modules/object-sizeof/byte_size.js ***!
  \*************************************************/
/*! no static exports found */
/*! ModuleConcatenation bailout: Module is not an ECMAScript module */
/***/ (function(module, exports) {

/**
 * Byte sizes are taken from ECMAScript Language Specification
 * http://www.ecma-international.org/ecma-262/5.1/
 * http://bclary.com/2004/11/07/#a-4.3.16
 */

module.exports = {
    STRING: 2,
    BOOLEAN: 4,
    NUMBER: 8
};

/***/ }),

/***/ "./node_modules/object-sizeof/index.js":
/*!*********************************************!*\
  !*** ./node_modules/object-sizeof/index.js ***!
  \*********************************************/
/*! no static exports found */
/*! ModuleConcatenation bailout: Module is not an ECMAScript module */
/***/ (function(module, exports, __webpack_require__) {

"use strict";
// Copyright 2014 Andrei Karpushonak



var ECMA_SIZES  = __webpack_require__(/*! ./byte_size */ "./node_modules/object-sizeof/byte_size.js");
var Buffer = __webpack_require__(/*! buffer */ "./node_modules/node-libs-browser/node_modules/buffer/index.js").Buffer;

/**
 * Main module's entry point
 * Calculates Bytes for the provided parameter
 * @param object - handles object/string/boolean/buffer
 * @returns {*}
 */
function sizeof(object) {
    if (object !== null && typeof (object) === 'object') {
      if (Buffer.isBuffer(object)) {
        return object.length;
      }
      else {
        var bytes = 0;
        for (var key in object) {

          if(!Object.hasOwnProperty.call(object, key)) {
            continue;
          }

          bytes += sizeof(key);
          try {
            bytes += sizeof(object[key]);
          } catch (ex) {
            if(ex instanceof RangeError) {
              // circular reference detected, final result might be incorrect
              // let's be nice and not throw an exception
              bytes = 0;
            }
          }
        }
        return bytes;
      }
    } else if (typeof (object) === 'string') {
      return object.length * ECMA_SIZES.STRING;
    } else if (typeof (object) === 'boolean') {
      return ECMA_SIZES.BOOLEAN;
    } else if (typeof (object) === 'number') {
      return ECMA_SIZES.NUMBER;
    } else {
      return 0;
    }
}

module.exports = sizeof;


/***/ }),

/***/ "./node_modules/parseqs/index.js":
/*!***************************************!*\
  !*** ./node_modules/parseqs/index.js ***!
  \***************************************/
/*! no static exports found */
/*! ModuleConcatenation bailout: Module is not an ECMAScript module */
/***/ (function(module, exports) {

/**
 * Compiles a querystring
 * Returns string representation of the object
 *
 * @param {Object}
 * @api private
 */

exports.encode = function (obj) {
  var str = '';

  for (var i in obj) {
    if (obj.hasOwnProperty(i)) {
      if (str.length) str += '&';
      str += encodeURIComponent(i) + '=' + encodeURIComponent(obj[i]);
    }
  }

  return str;
};

/**
 * Parses a simple querystring into an object
 *
 * @param {String} qs
 * @api private
 */

exports.decode = function(qs){
  var qry = {};
  var pairs = qs.split('&');
  for (var i = 0, l = pairs.length; i < l; i++) {
    var pair = pairs[i].split('=');
    qry[decodeURIComponent(pair[0])] = decodeURIComponent(pair[1]);
  }
  return qry;
};


/***/ }),

/***/ "./node_modules/parseuri/index.js":
/*!****************************************!*\
  !*** ./node_modules/parseuri/index.js ***!
  \****************************************/
/*! no static exports found */
/*! ModuleConcatenation bailout: Module is not an ECMAScript module */
/***/ (function(module, exports) {

/**
 * Parses an URI
 *
 * @author Steven Levithan <stevenlevithan.com> (MIT license)
 * @api private
 */

var re = /^(?:(?![^:@]+:[^:@\/]*@)(http|https|ws|wss):\/\/)?((?:(([^:@]*)(?::([^:@]*))?)?@)?((?:[a-f0-9]{0,4}:){2,7}[a-f0-9]{0,4}|[^:\/?#]*)(?::(\d*))?)(((\/(?:[^?#](?![^?#\/]*\.[^?#\/.]+(?:[?#]|$)))*\/?)?([^?#\/]*))(?:\?([^#]*))?(?:#(.*))?)/;

var parts = [
    'source', 'protocol', 'authority', 'userInfo', 'user', 'password', 'host', 'port', 'relative', 'path', 'directory', 'file', 'query', 'anchor'
];

module.exports = function parseuri(str) {
    var src = str,
        b = str.indexOf('['),
        e = str.indexOf(']');

    if (b != -1 && e != -1) {
        str = str.substring(0, b) + str.substring(b, e).replace(/:/g, ';') + str.substring(e, str.length);
    }

    var m = re.exec(str || ''),
        uri = {},
        i = 14;

    while (i--) {
        uri[parts[i]] = m[i] || '';
    }

    if (b != -1 && e != -1) {
        uri.source = src;
        uri.host = uri.host.substring(1, uri.host.length - 1).replace(/;/g, ':');
        uri.authority = uri.authority.replace('[', '').replace(']', '').replace(/;/g, ':');
        uri.ipv6uri = true;
    }

    return uri;
};


/***/ }),

/***/ "./node_modules/process/browser.js":
/*!*****************************************!*\
  !*** ./node_modules/process/browser.js ***!
  \*****************************************/
/*! no static exports found */
/*! ModuleConcatenation bailout: Module is not an ECMAScript module */
/***/ (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; };


/***/ }),

/***/ "./node_modules/query-string/index.js":
/*!********************************************!*\
  !*** ./node_modules/query-string/index.js ***!
  \********************************************/
/*! no static exports found */
/*! ModuleConcatenation bailout: Module is not an ECMAScript module */
/***/ (function(module, exports, __webpack_require__) {

"use strict";

const strictUriEncode = __webpack_require__(/*! strict-uri-encode */ "./node_modules/strict-uri-encode/index.js");
const decodeComponent = __webpack_require__(/*! decode-uri-component */ "./node_modules/decode-uri-component/index.js");

function encoderForArrayFormat(options) {
	switch (options.arrayFormat) {
		case 'index':
			return key => (result, value) => {
				const index = result.length;
				if (value === undefined) {
					return result;
				}

				if (value === null) {
					return [...result, [encode(key, options), '[', index, ']'].join('')];
				}

				return [
					...result,
					[encode(key, options), '[', encode(index, options), ']=', encode(value, options)].join('')
				];
			};

		case 'bracket':
			return key => (result, value) => {
				if (value === undefined) {
					return result;
				}

				if (value === null) {
					return [...result, [encode(key, options), '[]'].join('')];
				}

				return [...result, [encode(key, options), '[]=', encode(value, options)].join('')];
			};

		case 'comma':
			return key => (result, value, index) => {
				if (!value) {
					return result;
				}

				if (index === 0) {
					return [[encode(key, options), '=', encode(value, options)].join('')];
				}

				return [[result, encode(value, options)].join(',')];
			};

		default:
			return key => (result, value) => {
				if (value === undefined) {
					return result;
				}

				if (value === null) {
					return [...result, encode(key, options)];
				}

				return [...result, [encode(key, options), '=', encode(value, options)].join('')];
			};
	}
}

function parserForArrayFormat(options) {
	let result;

	switch (options.arrayFormat) {
		case 'index':
			return (key, value, accumulator) => {
				result = /\[(\d*)\]$/.exec(key);

				key = key.replace(/\[\d*\]$/, '');

				if (!result) {
					accumulator[key] = value;
					return;
				}

				if (accumulator[key] === undefined) {
					accumulator[key] = {};
				}

				accumulator[key][result[1]] = value;
			};

		case 'bracket':
			return (key, value, accumulator) => {
				result = /(\[\])$/.exec(key);
				key = key.replace(/\[\]$/, '');

				if (!result) {
					accumulator[key] = value;
					return;
				}

				if (accumulator[key] === undefined) {
					accumulator[key] = [value];
					return;
				}

				accumulator[key] = [].concat(accumulator[key], value);
			};

		case 'comma':
			return (key, value, accumulator) => {
				const isArray = typeof value === 'string' && value.split('').indexOf(',') > -1;
				const newValue = isArray ? value.split(',') : value;
				accumulator[key] = newValue;
			};

		default:
			return (key, value, accumulator) => {
				if (accumulator[key] === undefined) {
					accumulator[key] = value;
					return;
				}

				accumulator[key] = [].concat(accumulator[key], value);
			};
	}
}

function encode(value, options) {
	if (options.encode) {
		return options.strict ? strictUriEncode(value) : encodeURIComponent(value);
	}

	return value;
}

function decode(value, options) {
	if (options.decode) {
		return decodeComponent(value);
	}

	return value;
}

function keysSorter(input) {
	if (Array.isArray(input)) {
		return input.sort();
	}

	if (typeof input === 'object') {
		return keysSorter(Object.keys(input))
			.sort((a, b) => Number(a) - Number(b))
			.map(key => input[key]);
	}

	return input;
}

function extract(input) {
	const queryStart = input.indexOf('?');
	if (queryStart === -1) {
		return '';
	}

	return input.slice(queryStart + 1);
}

function parse(input, options) {
	options = Object.assign({
		decode: true,
		arrayFormat: 'none'
	}, options);

	const formatter = parserForArrayFormat(options);

	// Create an object with no prototype
	const ret = Object.create(null);

	if (typeof input !== 'string') {
		return ret;
	}

	input = input.trim().replace(/^[?#&]/, '');

	if (!input) {
		return ret;
	}

	for (const param of input.split('&')) {
		let [key, value] = param.replace(/\+/g, ' ').split('=');

		// Missing `=` should be `null`:
		// http://w3.org/TR/2012/WD-url-20120524/#collect-url-parameters
		value = value === undefined ? null : decode(value, options);

		formatter(decode(key, options), value, ret);
	}

	return Object.keys(ret).sort().reduce((result, key) => {
		const value = ret[key];
		if (Boolean(value) && typeof value === 'object' && !Array.isArray(value)) {
			// Sort object keys, not values
			result[key] = keysSorter(value);
		} else {
			result[key] = value;
		}

		return result;
	}, Object.create(null));
}

exports.extract = extract;
exports.parse = parse;

exports.stringify = (object, options) => {
	if (!object) {
		return '';
	}

	options = Object.assign({
		encode: true,
		strict: true,
		arrayFormat: 'none'
	}, options);

	const formatter = encoderForArrayFormat(options);
	const keys = Object.keys(object);

	if (options.sort !== false) {
		keys.sort(options.sort);
	}

	return keys.map(key => {
		const value = object[key];

		if (value === undefined) {
			return '';
		}

		if (value === null) {
			return encode(key, options);
		}

		if (Array.isArray(value)) {
			return value
				.reduce(formatter(key), [])
				.join('&');
		}

		return encode(key, options) + '=' + encode(value, options);
	}).filter(x => x.length > 0).join('&');
};

exports.parseUrl = (input, options) => {
	const hashStart = input.indexOf('#');
	if (hashStart !== -1) {
		input = input.slice(0, hashStart);
	}

	return {
		url: input.split('?')[0] || '',
		query: parse(extract(input), options)
	};
};


/***/ }),

/***/ "./node_modules/sdp-interop/lib/array-equals.js":
/*!******************************************************!*\
  !*** ./node_modules/sdp-interop/lib/array-equals.js ***!
  \******************************************************/
/*! no static exports found */
/*! ModuleConcatenation bailout: Module is not an ECMAScript module */
/***/ (function(module, exports) {

/* Copyright @ 2015 Atlassian Pty Ltd
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

module.exports = function arrayEquals(array) {
    // if the other array is a falsy value, return
    if (!array)
        return false;

    // compare lengths - can save a lot of time
    if (this.length != array.length)
        return false;

    for (var i = 0, l = this.length; i < l; i++) {
        // Check if we have nested arrays
        if (this[i] instanceof Array && array[i] instanceof Array) {
            // recurse into the nested arrays
            if (!arrayEquals.apply(this[i], [array[i]]))
                return false;
        } else if (this[i] != array[i]) {
            // Warning - two different object instances will never be equal:
            // {x:20} != {x:20}
            return false;
        }
    }
    return true;
};



/***/ }),

/***/ "./node_modules/sdp-interop/lib/index.js":
/*!***********************************************!*\
  !*** ./node_modules/sdp-interop/lib/index.js ***!
  \***********************************************/
/*! no static exports found */
/*! ModuleConcatenation bailout: Module is not an ECMAScript module */
/***/ (function(module, exports, __webpack_require__) {

/* Copyright @ 2015 Atlassian Pty Ltd
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

exports.Interop = __webpack_require__(/*! ./interop */ "./node_modules/sdp-interop/lib/interop.js");


/***/ }),

/***/ "./node_modules/sdp-interop/lib/interop.js":
/*!*************************************************!*\
  !*** ./node_modules/sdp-interop/lib/interop.js ***!
  \*************************************************/
/*! no static exports found */
/*! ModuleConcatenation bailout: Module is not an ECMAScript module */
/***/ (function(module, exports, __webpack_require__) {

"use strict";
/* Copyright @ 2015 Atlassian Pty Ltd
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

/* global RTCSessionDescription */
/* global RTCIceCandidate */
/* jshint -W097 */


var transform = __webpack_require__(/*! ./transform */ "./node_modules/sdp-interop/lib/transform.js");
var arrayEquals = __webpack_require__(/*! ./array-equals */ "./node_modules/sdp-interop/lib/array-equals.js");

function Interop() {

    /**
     * This map holds the most recent Unified Plan offer/answer SDP that was
     * converted to Plan B, with the SDP type ('offer' or 'answer') as keys and
     * the SDP string as values.
     *
     * @type {{}}
     */
    this.cache = {
        mlB2UMap : {},
        mlU2BMap : {}
    };
}

module.exports = Interop;

/**
 * Changes the candidate args to match with the related Unified Plan
 */
Interop.prototype.candidateToUnifiedPlan = function(candidate) {
    var cand = new RTCIceCandidate(candidate);

    cand.sdpMLineIndex = this.cache.mlB2UMap[cand.sdpMLineIndex];
    /* TODO: change sdpMid to (audio|video)-SSRC */

    return cand;
};

/**
 * Changes the candidate args to match with the related Plan B
 */
Interop.prototype.candidateToPlanB = function(candidate) {
    var cand = new RTCIceCandidate(candidate);

    if (cand.sdpMid.indexOf('audio') === 0) {
      cand.sdpMid = 'audio';
    } else if (cand.sdpMid.indexOf('video') === 0) {
      cand.sdpMid = 'video';
    } else {
      throw new Error('candidate with ' + cand.sdpMid + ' not allowed');
    }

    cand.sdpMLineIndex = this.cache.mlU2BMap[cand.sdpMLineIndex];

    return cand;
};

/**
 * Returns the index of the first m-line with the given media type and with a
 * direction which allows sending, in the last Unified Plan description with
 * type "answer" converted to Plan B. Returns {null} if there is no saved
 * answer, or if none of its m-lines with the given type allow sending.
 * @param type the media type ("audio" or "video").
 * @returns {*}
 */
Interop.prototype.getFirstSendingIndexFromAnswer = function(type) {
    if (!this.cache.answer) {
        return null;
    }

    var session = transform.parse(this.cache.answer);
    if (session && session.media && Array.isArray(session.media)){
        for (var i = 0; i < session.media.length; i++) {
            if (session.media[i].type == type &&
                (!session.media[i].direction /* default to sendrecv */ ||
                    session.media[i].direction === 'sendrecv' ||
                    session.media[i].direction === 'sendonly')){
                return i;
            }
        }
    }

    return null;
};

/**
 * This method transforms a Unified Plan SDP to an equivalent Plan B SDP. A
 * PeerConnection wrapper transforms the SDP to Plan B before passing it to the
 * application.
 *
 * @param desc
 * @returns {*}
 */
Interop.prototype.toPlanB = function(desc) {
    var self = this;
    //#region Preliminary input validation.

    if (typeof desc !== 'object' || desc === null ||
        typeof desc.sdp !== 'string') {
        console.warn('An empty description was passed as an argument.');
        return desc;
    }

    // Objectify the SDP for easier manipulation.
    var session = transform.parse(desc.sdp);

    // If the SDP contains no media, there's nothing to transform.
    if (typeof session.media === 'undefined' ||
        !Array.isArray(session.media) || session.media.length === 0) {
        console.warn('The description has no media.');
        return desc;
    }

    // Try some heuristics to "make sure" this is a Unified Plan SDP. Plan B
    // SDP has a video, an audio and a data "channel" at most.
    if (session.media.length <= 3 && session.media.every(function(m) {
            return ['video', 'audio', 'data'].indexOf(m.mid) !== -1;
        })) {
        console.warn('This description does not look like Unified Plan.');
        return desc;
    }

    //#endregion

    // HACK https://bugzilla.mozilla.org/show_bug.cgi?id=1113443
    var sdp = desc.sdp;
    var rewrite = false;
    for (var i = 0; i < session.media.length; i++) {
        var uLine = session.media[i];
        uLine.rtp.forEach(function(rtp) {
            if (rtp.codec === 'NULL')
            {
                rewrite = true;
                var offer = transform.parse(self.cache.offer);
                rtp.codec = offer.media[i].rtp[0].codec;
            }
        });
    }
    if (rewrite) {
        sdp = transform.write(session);
    }

    // Unified Plan SDP is our "precious". Cache it for later use in the Plan B
    // -> Unified Plan transformation.
    this.cache[desc.type] = sdp;

    //#region Convert from Unified Plan to Plan B.

    // We rebuild the session.media array.
    var media = session.media;
    session.media = [];

    // Associative array that maps channel types to channel objects for fast
    // access to channel objects by their type, e.g. type2bl['audio']->channel
    // obj.
    var type2bl = {};

    // Used to build the group:BUNDLE value after the channels construction
    // loop.
    var types = [];

    // Used to aggregate the directions of the m-lines.
    var directionResult = {};

    media.forEach(function(uLine) {
        // rtcp-mux is required in the Plan B SDP.
        if ((typeof uLine.rtcpMux !== 'string' ||
            uLine.rtcpMux !== 'rtcp-mux') &&
            uLine.direction !== 'inactive') {
            throw new Error('Cannot convert to Plan B because m-lines ' +
                'without the rtcp-mux attribute were found.');
        }

        // If we don't have a channel for this uLine.type OR the selected is
        // inactive, then select this uLine as the channel basis.
        if (typeof type2bl[uLine.type] === 'undefined' ||
            type2bl[uLine.type].direction === 'inactive') {
            type2bl[uLine.type] = uLine;
        }
    });

    // Implode the Unified Plan m-lines/tracks into Plan B channels.
    media.forEach(function(uLine) {
        var type = uLine.type;

        if (type === 'application') {
            session.media.push(uLine);
            types.push(uLine.mid);
            return;
        }

        // Add sources to the channel and handle a=msid.
        if (typeof uLine.sources === 'object') {
            Object.keys(uLine.sources).forEach(function(ssrc) {
                if (typeof type2bl[type].sources !== 'object')
                    type2bl[type].sources = {};

                // Assign the sources to the channel.
                type2bl[type].sources[ssrc] = uLine.sources[ssrc];

                if (typeof uLine.msid !== 'undefined') {
                    // In Plan B the msid is an SSRC attribute. Also, we don't
                    // care about the obsolete label and mslabel attributes.
                    //
                    // Note that it is not guaranteed that the uLine will
                    // have an msid. recvonly channels in particular don't have
                    // one.
                    type2bl[type].sources[ssrc].msid = uLine.msid;
                }
                // NOTE ssrcs in ssrc groups will share msids, as
                // draft-uberti-rtcweb-plan-00 mandates.
            });
        }

        // Add ssrc groups to the channel.
        if (typeof uLine.ssrcGroups !== 'undefined' &&
                Array.isArray(uLine.ssrcGroups)) {

            // Create the ssrcGroups array, if it's not defined.
            if (typeof type2bl[type].ssrcGroups === 'undefined' ||
                    !Array.isArray(type2bl[type].ssrcGroups)) {
                type2bl[type].ssrcGroups = [];
            }

            type2bl[type].ssrcGroups
                = type2bl[type].ssrcGroups.concat(uLine.ssrcGroups);
        }

        var direction = uLine.direction;

        directionResult[type]
            = (directionResult[type] || 0 /* inactive */)
                | directionMasks[direction || 'inactive'];

        if (type2bl[type] === uLine) {
            // Plan B mids are in ['audio', 'video', 'data']
            uLine.mid = type;

            // Plan B doesn't support/need the bundle-only attribute.
            delete uLine.bundleOnly;

            // In Plan B the msid is an SSRC attribute.
            delete uLine.msid;

            if (direction !== 'inactive') {
              // Used to build the group:BUNDLE value after this loop.
              types.push(type);
            }

            // Add the channel to the new media array.
            session.media.push(uLine);
        }
    });

    // We regenerate the BUNDLE group with the new mids.
    session.groups.some(function(group) {
        if (group.type === 'BUNDLE') {
            group.mids = types.join(' ');
            return true;
        }
    });

    // msid semantic
    session.msidSemantic = {
        semantic: 'WMS',
        token: '*'
    };

    var resStr = transform.write(session);

    return new RTCSessionDescription({
        type: desc.type,
        sdp: resStr
    });

    //#endregion
};

/**
 * This method transforms a Plan B SDP to an equivalent Unified Plan SDP. A
 * PeerConnection wrapper transforms the SDP to Unified Plan before passing it
 * to FF.
 *
 * @param desc
 * @returns {*}
 */
Interop.prototype.toUnifiedPlan = function(desc) {
    var self = this;
    //#region Preliminary input validation.

    if (typeof desc !== 'object' || desc === null ||
        typeof desc.sdp !== 'string') {
        console.warn('An empty description was passed as an argument.');
        return desc;
    }

    var session = transform.parse(desc.sdp);

    // If the SDP contains no media, there's nothing to transform.
    if (typeof session.media === 'undefined' ||
        !Array.isArray(session.media) || session.media.length === 0) {
        console.warn('The description has no media.');
        return desc;
    }

    // Try some heuristics to "make sure" this is a Plan B SDP. Plan B SDP has
    // a video, an audio and a data "channel" at most.
    if (session.media.length > 3 || !session.media.every(function(m) {
            return ['video', 'audio', 'data'].indexOf(m.mid) !== -1;
        })) {
        console.warn('This description does not look like Plan B.');
        return desc;
    }

    // Make sure this Plan B SDP can be converted to a Unified Plan SDP.
    var mids = [];
    session.media.forEach(function(m) {
        mids.push(m.mid);
    });

    var hasBundle = false;
    if (typeof session.groups !== 'undefined' &&
        Array.isArray(session.groups)) {
        hasBundle = session.groups.every(function(g) {
            return g.type !== 'BUNDLE' ||
                arrayEquals.apply(g.mids.sort(), [mids.sort()]);
        });
    }

    if (!hasBundle) {
        throw new Error("Cannot convert to Unified Plan because m-lines that" +
            " are not bundled were found.");
    }

    //#endregion


    //#region Convert from Plan B to Unified Plan.

    // Unfortunately, a Plan B offer/answer doesn't have enough information to
    // rebuild an equivalent Unified Plan offer/answer.
    //
    // For example, if this is a local answer (in Unified Plan style) that we
    // convert to Plan B prior to handing it over to the application (the
    // PeerConnection wrapper called us, for instance, after a successful
    // createAnswer), we want to remember the m-line at which we've seen the
    // (local) SSRC. That's because when the application wants to do call the
    // SLD method, forcing us to do the inverse transformation (from Plan B to
    // Unified Plan), we need to know to which m-line to assign the (local)
    // SSRC. We also need to know all the other m-lines that the original
    // answer had and include them in the transformed answer as well.
    //
    // Another example is if this is a remote offer that we convert to Plan B
    // prior to giving it to the application, we want to remember the mid at
    // which we've seen the (remote) SSRC.
    //
    // In the iteration that follows, we use the cached Unified Plan (if it
    // exists) to assign mids to ssrcs.

    var cached;
    if (typeof this.cache[desc.type] !== 'undefined') {
        cached = transform.parse(this.cache[desc.type]);
    }

    var recvonlySsrcs = {
        audio: {},
        video: {}
    };

    // A helper map that sends mids to m-line objects. We use it later to
    // rebuild the Unified Plan style session.media array.
    var mid2ul = {};
    var bIdx = 0;
    var uIdx = 0;

    session.media.forEach(function(bLine) {
        if ((typeof bLine.rtcpMux !== 'string' ||
            bLine.rtcpMux !== 'rtcp-mux') &&
            bLine.direction !== 'inactive') {
            throw new Error("Cannot convert to Unified Plan because m-lines " +
                "without the rtcp-mux attribute were found.");
        }

        if (bLine.type === 'application') {
            mid2ul[bLine.mid] = bLine;
            return;
        }

        // With rtcp-mux and bundle all the channels should have the same ICE
        // stuff.
        var sources = bLine.sources;
        var ssrcGroups = bLine.ssrcGroups;
        var candidates = bLine.candidates;
        var iceUfrag = bLine.iceUfrag;
        var icePwd = bLine.icePwd;
        var fingerprint = bLine.fingerprint;
        var port = bLine.port;

        // We'll use the "bLine" object as a prototype for each new "mLine"
        // that we create, but first we need to clean it up a bit.
        delete bLine.sources;
        delete bLine.ssrcGroups;
        delete bLine.candidates;
        delete bLine.iceUfrag;
        delete bLine.icePwd;
        delete bLine.fingerprint;
        delete bLine.port;
        delete bLine.mid;

        // inverted ssrc group map
        var ssrc2group = {};
        if (typeof ssrcGroups !== 'undefined' && Array.isArray(ssrcGroups)) {
            ssrcGroups.forEach(function (ssrcGroup) {

                // TODO(gp) find out how to receive simulcast with FF. For the
                // time being, hide it.
                if (ssrcGroup.semantics === 'SIM') {
                    return;
                }

                // XXX This might brake if an SSRC is in more than one group
                // for some reason.
                if (typeof ssrcGroup.ssrcs !== 'undefined' &&
                    Array.isArray(ssrcGroup.ssrcs)) {
                    ssrcGroup.ssrcs.forEach(function (ssrc) {
                        if (typeof ssrc2group[ssrc] === 'undefined') {
                            ssrc2group[ssrc] = [];
                        }

                        ssrc2group[ssrc].push(ssrcGroup);
                    });
                }
            });
        }

        // ssrc to m-line index.
        var ssrc2ml = {};

        if (typeof sources === 'object') {

            // Explode the Plan B channel sources with one m-line per source.
            Object.keys(sources).forEach(function(ssrc) {

                // The (unified) m-line for this SSRC. We either create it from
                // scratch or, if it's a grouped SSRC, we re-use a related
                // mline. In other words, if the source is grouped with another
                // source, put the two together in the same m-line.
                var uLine;

                // We assume here that we are the answerer in the O/A, so any
                // offers which we translate come from the remote side, while
                // answers are local. So the check below is to make that we
                // handle receive-only SSRCs in a special way only if they come
                // from the remote side.
                if (desc.type==='offer') {
                    // We want to detect SSRCs which are used by a remote peer
                    // in an m-line with direction=recvonly (i.e. they are
                    // being used for RTCP only).
                    // This information would have gotten lost if the remote
                    // peer used Unified Plan and their local description was
                    // translated to Plan B. So we use the lack of an MSID
                    // attribute to deduce a "receive only" SSRC.
                    if (!sources[ssrc].msid) {
                        recvonlySsrcs[bLine.type][ssrc] = sources[ssrc];
                        // Receive-only SSRCs must not create new m-lines. We
                        // will assign them to an existing m-line later.
                        return;
                    }
                }

                if (typeof ssrc2group[ssrc] !== 'undefined' &&
                    Array.isArray(ssrc2group[ssrc])) {
                    ssrc2group[ssrc].some(function (ssrcGroup) {
                        // ssrcGroup.ssrcs *is* an Array, no need to check
                        // again here.
                        return ssrcGroup.ssrcs.some(function (related) {
                            if (typeof ssrc2ml[related] === 'object') {
                                uLine = ssrc2ml[related];
                                return true;
                            }
                        });
                    });
                }

                if (typeof uLine === 'object') {
                    // the m-line already exists. Just add the source.
                    uLine.sources[ssrc] = sources[ssrc];
                    delete sources[ssrc].msid;
                } else {
                    // Use the "bLine" as a prototype for the "uLine".
                    uLine = Object.create(bLine);
                    ssrc2ml[ssrc] = uLine;

                    if (typeof sources[ssrc].msid !== 'undefined') {
                        // Assign the msid of the source to the m-line. Note
                        // that it is not guaranteed that the source will have
                        // msid. In particular "recvonly" sources don't have an
                        // msid. Note that "recvonly" is a term only defined
                        // for m-lines.
                        uLine.msid = sources[ssrc].msid;
                        delete sources[ssrc].msid;
                    }

                    // We assign one SSRC per media line.
                    uLine.sources = {};
                    uLine.sources[ssrc] = sources[ssrc];
                    uLine.ssrcGroups = ssrc2group[ssrc];

                    // Use the cached Unified Plan SDP (if it exists) to assign
                    // SSRCs to mids.
                    if (typeof cached !== 'undefined' &&
                        typeof cached.media !== 'undefined' &&
                        Array.isArray(cached.media)) {

                        cached.media.forEach(function (m) {
                            if (typeof m.sources === 'object') {
                                Object.keys(m.sources).forEach(function (s) {
                                    if (s === ssrc) {
                                        uLine.mid = m.mid;
                                    }
                                });
                            }
                        });
                    }

                    if (typeof uLine.mid === 'undefined') {

                        // If this is an SSRC that we see for the first time
                        // assign it a new mid. This is typically the case when
                        // this method is called to transform a remote
                        // description for the first time or when there is a
                        // new SSRC in the remote description because a new
                        // peer has joined the conference. Local SSRCs should
                        // have already been added to the map in the toPlanB
                        // method.
                        //
                        // Because FF generates answers in Unified Plan style,
                        // we MUST already have a cached answer with all the
                        // local SSRCs mapped to some m-line/mid.

                        if (desc.type === 'answer') {
                            throw new Error("An unmapped SSRC was found.");
                        }

                        uLine.mid = [bLine.type, '-', ssrc].join('');
                    }

                    // Include the candidates in the 1st media line.
                    uLine.candidates = candidates;
                    uLine.iceUfrag = iceUfrag;
                    uLine.icePwd = icePwd;
                    uLine.fingerprint = fingerprint;
                    uLine.port = port;

                    mid2ul[uLine.mid] = uLine;

                    self.cache.mlU2BMap[uIdx] = bIdx;
                    if (typeof self.cache.mlB2UMap[bIdx] === 'undefined') {
                      self.cache.mlB2UMap[bIdx] = uIdx;
                    }
                    uIdx++;
                }
            });
        }

        bIdx++;
    });

    // Rebuild the media array in the right order and add the missing mLines
    // (missing from the Plan B SDP).
    session.media = [];
    mids = []; // reuse

    if (desc.type === 'answer') {

        // The media lines in the answer must match the media lines in the
        // offer. The order is important too. Here we assume that Firefox is
        // the answerer, so we merely have to use the reconstructed (unified)
        // answer to update the cached (unified) answer accordingly.
        //
        // In the general case, one would have to use the cached (unified)
        // offer to find the m-lines that are missing from the reconstructed
        // answer, potentially grabbing them from the cached (unified) answer.
        // One has to be careful with this approach because inactive m-lines do
        // not always have an mid, making it tricky (impossible?) to find where
        // exactly and which m-lines are missing from the reconstructed answer.

        for (var i = 0; i < cached.media.length; i++) {
            var uLine = cached.media[i];

            if (typeof mid2ul[uLine.mid] === 'undefined') {

                // The mid isn't in the reconstructed (unified) answer.
                // This is either a (unified) m-line containing a remote
                // track only, or a (unified) m-line containing a remote
                // track and a local track that has been removed.
                // In either case, it MUST exist in the cached
                // (unified) answer.
                //
                // In case this is a removed local track, clean-up
                // the (unified) m-line and make sure it's 'recvonly' or
                // 'inactive'.

                delete uLine.msid;
                delete uLine.sources;
                delete uLine.ssrcGroups;
                if (!uLine.direction
                    || uLine.direction === 'sendrecv')
                    uLine.direction = 'recvonly';
                else if (uLine.direction === 'sendonly')
                    uLine.direction = 'inactive';
            } else {
                // This is an (unified) m-line/channel that contains a local
                // track (sendrecv or sendonly channel) or it's a unified
                // recvonly m-line/channel. In either case, since we're
                // going from PlanB -> Unified Plan this m-line MUST
                // exist in the cached answer.
            }

            session.media.push(uLine);

            if (typeof uLine.mid === 'string') {
                // inactive lines don't/may not have an mid.
                mids.push(uLine.mid);
            }
        }
    } else {

        // SDP offer/answer (and the JSEP spec) forbids removing an m-section
        // under any circumstances. If we are no longer interested in sending a
        // track, we just remove the msid and ssrc attributes and set it to
        // either a=recvonly (as the reofferer, we must use recvonly if the
        // other side was previously sending on the m-section, but we can also
        // leave the possibility open if it wasn't previously in use), or
        // a=inactive.

        if (typeof cached !== 'undefined' &&
            typeof cached.media !== 'undefined' &&
            Array.isArray(cached.media)) {
            cached.media.forEach(function(uLine) {
                mids.push(uLine.mid);
                if (typeof mid2ul[uLine.mid] !== 'undefined') {
                    session.media.push(mid2ul[uLine.mid]);
                } else {
                    delete uLine.msid;
                    delete uLine.sources;
                    delete uLine.ssrcGroups;
                    if (!uLine.direction
                        || uLine.direction === 'sendrecv')
                        uLine.direction = 'recvonly';
                    if (!uLine.direction
                        || uLine.direction === 'sendonly')
                        uLine.direction = 'inactive';
                    session.media.push(uLine);
                }
            });
        }

        // Add all the remaining (new) m-lines of the transformed SDP.
        Object.keys(mid2ul).forEach(function(mid) {
            if (mids.indexOf(mid) === -1) {
                mids.push(mid);
                if (mid2ul[mid].direction === 'recvonly') {
                    // This is a remote recvonly channel. Add its SSRC to the
                    // appropriate sendrecv or sendonly channel.
                    // TODO(gp) what if we don't have sendrecv/sendonly
                    // channel?

                    session.media.some(function (uLine) {
                        if ((uLine.direction === 'sendrecv' ||
                            uLine.direction === 'sendonly') &&
                            uLine.type === mid2ul[mid].type) {

                            // mid2ul[mid] shouldn't have any ssrc-groups
                            Object.keys(mid2ul[mid].sources).forEach(
                                function (ssrc) {
                                uLine.sources[ssrc] =
                                    mid2ul[mid].sources[ssrc];
                            });

                            return true;
                        }
                    });
                } else {
                    session.media.push(mid2ul[mid]);
                }
            }
        });
    }

    // After we have constructed the Plan Unified m-lines we can figure out
    // where (in which m-line) to place the 'recvonly SSRCs'.
    // Note: we assume here that we are the answerer in the O/A, so any offers
    // which we translate come from the remote side, while answers are local
    // (and so our last local description is cached as an 'answer').
    ["audio", "video"].forEach(function (type) {
        if (!session || !session.media || !Array.isArray(session.media))
            return;

        var idx = null;
        if (Object.keys(recvonlySsrcs[type]).length > 0) {
            idx = self.getFirstSendingIndexFromAnswer(type);
            if (idx === null){
                // If this is the first offer we receive, we don't have a
                // cached answer. Assume that we will be sending media using
                // the first m-line for each media type.

                for (var i = 0; i < session.media.length; i++) {
                    if (session.media[i].type === type) {
                        idx = i;
                        break;
                    }
                }
            }
        }

        if (idx && session.media.length > idx) {
            var mLine = session.media[idx];
            Object.keys(recvonlySsrcs[type]).forEach(function(ssrc) {
                if (mLine.sources && mLine.sources[ssrc]) {
                    console.warn("Replacing an existing SSRC.");
                }
                if (!mLine.sources) {
                    mLine.sources = {};
                }

                mLine.sources[ssrc] = recvonlySsrcs[type][ssrc];
            });
        }
    });

    // We regenerate the BUNDLE group (since we regenerated the mids)
    session.groups.some(function(group) {
        if (group.type === 'BUNDLE') {
            group.mids = mids.join(' ');
            return true;
        }
    });

    // msid semantic
    session.msidSemantic = {
        semantic: 'WMS',
        token: '*'
    };

    var resStr = transform.write(session);

    // Cache the transformed SDP (Unified Plan) for later re-use in this
    // function.
    this.cache[desc.type] = resStr;

    return new RTCSessionDescription({
        type: desc.type,
        sdp: resStr
    });

    //#endregion
};

/**
 * Maps the direction strings to their binary representation. The binary
 * representation of the directions will contain only 2 bits. The least
 * significant bit will indicate the receiving direction and the other bit will
 * indicate the sending direction.
 *
 * @type {Map<string, number>}
 */
var directionMasks = {
    'inactive': 0, // 00
    'recvonly': 1, // 01
    'sendonly': 2, // 10
    'sendrecv': 3  // 11
}

/**
 * Parses a number into direction string.
 *
 * @param {number} direction - The number to be parsed.
 * @returns {string} - The parsed direction string.
 */
function parseDirection(direction) {
    // Filter all other bits except the 2 less significant.
    var directionMask = direction & 3;

    switch (directionMask) {
    case 0:
        return 'inactive';
    case 1:
        return 'recvonly';
    case 2:
        return 'sendonly';
    case 3:
        return 'sendrecv';
    }
}


/***/ }),

/***/ "./node_modules/sdp-interop/lib/transform.js":
/*!***************************************************!*\
  !*** ./node_modules/sdp-interop/lib/transform.js ***!
  \***************************************************/
/*! no static exports found */
/*! ModuleConcatenation bailout: Module is not an ECMAScript module */
/***/ (function(module, exports, __webpack_require__) {

/* Copyright @ 2015 Atlassian Pty Ltd
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

var transform = __webpack_require__(/*! sdp-transform */ "./node_modules/sdp-interop/node_modules/sdp-transform/lib/index.js");

exports.write = function(session, opts) {

  if (typeof session !== 'undefined' &&
      typeof session.media !== 'undefined' &&
      Array.isArray(session.media)) {

    session.media.forEach(function (mLine) {
      // expand sources to ssrcs
      if (typeof mLine.sources !== 'undefined' &&
        Object.keys(mLine.sources).length !== 0) {
          mLine.ssrcs = [];
          Object.keys(mLine.sources).forEach(function (ssrc) {
            var source = mLine.sources[ssrc];
            Object.keys(source).forEach(function (attribute) {
              mLine.ssrcs.push({
                id: ssrc,
                attribute: attribute,
                value: source[attribute]
              });
            });
          });
          delete mLine.sources;
        }

      // join ssrcs in ssrc groups
      if (typeof mLine.ssrcGroups !== 'undefined' &&
        Array.isArray(mLine.ssrcGroups)) {
          mLine.ssrcGroups.forEach(function (ssrcGroup) {
            if (typeof ssrcGroup.ssrcs !== 'undefined' &&
                Array.isArray(ssrcGroup.ssrcs)) {
              ssrcGroup.ssrcs = ssrcGroup.ssrcs.join(' ');
            }
          });
        }
    });
  }

  // join group mids
  if (typeof session !== 'undefined' &&
      typeof session.groups !== 'undefined' && Array.isArray(session.groups)) {

    session.groups.forEach(function (g) {
      if (typeof g.mids !== 'undefined' && Array.isArray(g.mids)) {
        g.mids = g.mids.join(' ');
      }
    });
  }

  return transform.write(session, opts);
};

exports.parse = function(sdp) {
  var session = transform.parse(sdp);

  if (typeof session !== 'undefined' && typeof session.media !== 'undefined' &&
      Array.isArray(session.media)) {

    session.media.forEach(function (mLine) {
      // group sources attributes by ssrc
      if (typeof mLine.ssrcs !== 'undefined' && Array.isArray(mLine.ssrcs)) {
        mLine.sources = {};
        mLine.ssrcs.forEach(function (ssrc) {
          if (!mLine.sources[ssrc.id])
          mLine.sources[ssrc.id] = {};
        mLine.sources[ssrc.id][ssrc.attribute] = ssrc.value;
        });

        delete mLine.ssrcs;
      }

      // split ssrcs in ssrc groups
      if (typeof mLine.ssrcGroups !== 'undefined' &&
        Array.isArray(mLine.ssrcGroups)) {
          mLine.ssrcGroups.forEach(function (ssrcGroup) {
            if (typeof ssrcGroup.ssrcs === 'string') {
              ssrcGroup.ssrcs = ssrcGroup.ssrcs.split(' ');
            }
          });
        }
    });
  }
  // split group mids
  if (typeof session !== 'undefined' &&
      typeof session.groups !== 'undefined' && Array.isArray(session.groups)) {

    session.groups.forEach(function (g) {
      if (typeof g.mids === 'string') {
        g.mids = g.mids.split(' ');
      }
    });
  }

  return session;
};



/***/ }),

/***/ "./node_modules/sdp-interop/node_modules/sdp-transform/lib/grammar.js":
/*!****************************************************************************!*\
  !*** ./node_modules/sdp-interop/node_modules/sdp-transform/lib/grammar.js ***!
  \****************************************************************************/
/*! no static exports found */
/*! ModuleConcatenation bailout: Module is not an ECMAScript module */
/***/ (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'
    },
    { // 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';
    }
  });
});


/***/ }),

/***/ "./node_modules/sdp-interop/node_modules/sdp-transform/lib/index.js":
/*!**************************************************************************!*\
  !*** ./node_modules/sdp-interop/node_modules/sdp-transform/lib/index.js ***!
  \**************************************************************************/
/*! no static exports found */
/*! ModuleConcatenation bailout: Module is not an ECMAScript module */
/***/ (function(module, exports, __webpack_require__) {

var parser = __webpack_require__(/*! ./parser */ "./node_modules/sdp-interop/node_modules/sdp-transform/lib/parser.js");
var writer = __webpack_require__(/*! ./writer */ "./node_modules/sdp-interop/node_modules/sdp-transform/lib/writer.js");

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;


/***/ }),

/***/ "./node_modules/sdp-interop/node_modules/sdp-transform/lib/parser.js":
/*!***************************************************************************!*\
  !*** ./node_modules/sdp-interop/node_modules/sdp-transform/lib/parser.js ***!
  \***************************************************************************/
/*! no static exports found */
/*! ModuleConcatenation bailout: Module is not an ECMAScript module */
/***/ (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__(/*! ./grammar */ "./node_modules/sdp-interop/node_modules/sdp-transform/lib/grammar.js");
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]);
  }
  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
      };
    });
  });
};


/***/ }),

/***/ "./node_modules/sdp-interop/node_modules/sdp-transform/lib/writer.js":
/*!***************************************************************************!*\
  !*** ./node_modules/sdp-interop/node_modules/sdp-transform/lib/writer.js ***!
  \***************************************************************************/
/*! no static exports found */
/*! ModuleConcatenation bailout: Module is not an ECMAScript module */
/***/ (function(module, exports, __webpack_require__) {

var grammar = __webpack_require__(/*! ./grammar */ "./node_modules/sdp-interop/node_modules/sdp-transform/lib/grammar.js");

// customized util.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';
};


/***/ }),

/***/ "./node_modules/sdp-transform/lib/grammar.js":
/*!***************************************************!*\
  !*** ./node_modules/sdp-transform/lib/grammar.js ***!
  \***************************************************/
/*! no static exports found */
/*! ModuleConcatenation bailout: Module is not an ECMAScript module */
/***/ (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';
    }
  });
});


/***/ }),

/***/ "./node_modules/sdp-transform/lib/index.js":
/*!*************************************************!*\
  !*** ./node_modules/sdp-transform/lib/index.js ***!
  \*************************************************/
/*! no static exports found */
/*! ModuleConcatenation bailout: Module is not an ECMAScript module */
/***/ (function(module, exports, __webpack_require__) {

var parser = __webpack_require__(/*! ./parser */ "./node_modules/sdp-transform/lib/parser.js");
var writer = __webpack_require__(/*! ./writer */ "./node_modules/sdp-transform/lib/writer.js");

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;


/***/ }),

/***/ "./node_modules/sdp-transform/lib/parser.js":
/*!**************************************************!*\
  !*** ./node_modules/sdp-transform/lib/parser.js ***!
  \**************************************************/
/*! no static exports found */
/*! ModuleConcatenation bailout: Module is not an ECMAScript module */
/***/ (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__(/*! ./grammar */ "./node_modules/sdp-transform/lib/grammar.js");
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
      };
    });
  });
};


/***/ }),

/***/ "./node_modules/sdp-transform/lib/writer.js":
/*!**************************************************!*\
  !*** ./node_modules/sdp-transform/lib/writer.js ***!
  \**************************************************/
/*! no static exports found */
/*! ModuleConcatenation bailout: Module is not an ECMAScript module */
/***/ (function(module, exports, __webpack_require__) {

var grammar = __webpack_require__(/*! ./grammar */ "./node_modules/sdp-transform/lib/grammar.js");

// customized util.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';
};


/***/ }),

/***/ "./node_modules/socket.io-client/lib/index.js":
/*!****************************************************!*\
  !*** ./node_modules/socket.io-client/lib/index.js ***!
  \****************************************************/
/*! no static exports found */
/*! ModuleConcatenation bailout: Module is not an ECMAScript module */
/***/ (function(module, exports, __webpack_require__) {


/**
 * Module dependencies.
 */

var url = __webpack_require__(/*! ./url */ "./node_modules/socket.io-client/lib/url.js");
var parser = __webpack_require__(/*! socket.io-parser */ "./node_modules/socket.io-client/node_modules/socket.io-parser/index.js");
var Manager = __webpack_require__(/*! ./manager */ "./node_modules/socket.io-client/lib/manager.js");
var debug = __webpack_require__(/*! debug */ "./node_modules/socket.io-client/node_modules/debug/src/browser.js")('socket.io-client');

/**
 * Module exports.
 */

module.exports = exports = lookup;

/**
 * Managers cache.
 */

var cache = exports.managers = {};

/**
 * Looks up an existing `Manager` for multiplexing.
 * If the user summons:
 *
 *   `io('http://localhost/a');`
 *   `io('http://localhost/b');`
 *
 * We reuse the existing instance based on same scheme/port/host,
 * and we initialize sockets for each namespace.
 *
 * @api public
 */

function lookup (uri, opts) {
  if (typeof uri === 'object') {
    opts = uri;
    uri = undefined;
  }

  opts = opts || {};

  var parsed = url(uri);
  var source = parsed.source;
  var id = parsed.id;
  var path = parsed.path;
  var sameNamespace = cache[id] && path in cache[id].nsps;
  var newConnection = opts.forceNew || opts['force new connection'] ||
                      false === opts.multiplex || sameNamespace;

  var io;

  if (newConnection) {
    debug('ignoring socket cache for %s', source);
    io = Manager(source, opts);
  } else {
    if (!cache[id]) {
      debug('new io instance for %s', source);
      cache[id] = Manager(source, opts);
    }
    io = cache[id];
  }
  if (parsed.query && !opts.query) {
    opts.query = parsed.query;
  }
  return io.socket(parsed.path, opts);
}

/**
 * Protocol version.
 *
 * @api public
 */

exports.protocol = parser.protocol;

/**
 * `connect`.
 *
 * @param {String} uri
 * @api public
 */

exports.connect = lookup;

/**
 * Expose constructors for standalone build.
 *
 * @api public
 */

exports.Manager = __webpack_require__(/*! ./manager */ "./node_modules/socket.io-client/lib/manager.js");
exports.Socket = __webpack_require__(/*! ./socket */ "./node_modules/socket.io-client/lib/socket.js");


/***/ }),

/***/ "./node_modules/socket.io-client/lib/manager.js":
/*!******************************************************!*\
  !*** ./node_modules/socket.io-client/lib/manager.js ***!
  \******************************************************/
/*! no static exports found */
/*! ModuleConcatenation bailout: Module is not an ECMAScript module */
/***/ (function(module, exports, __webpack_require__) {


/**
 * Module dependencies.
 */

var eio = __webpack_require__(/*! engine.io-client */ "./node_modules/socket.io-client/node_modules/engine.io-client/lib/index.js");
var Socket = __webpack_require__(/*! ./socket */ "./node_modules/socket.io-client/lib/socket.js");
var Emitter = __webpack_require__(/*! component-emitter */ "./node_modules/component-emitter/index.js");
var parser = __webpack_require__(/*! socket.io-parser */ "./node_modules/socket.io-client/node_modules/socket.io-parser/index.js");
var on = __webpack_require__(/*! ./on */ "./node_modules/socket.io-client/lib/on.js");
var bind = __webpack_require__(/*! component-bind */ "./node_modules/component-bind/index.js");
var debug = __webpack_require__(/*! debug */ "./node_modules/socket.io-client/node_modules/debug/src/browser.js")('socket.io-client:manager');
var indexOf = __webpack_require__(/*! indexof */ "./node_modules/indexof/index.js");
var Backoff = __webpack_require__(/*! backo2 */ "./node_modules/backo2/index.js");

/**
 * IE6+ hasOwnProperty
 */

var has = Object.prototype.hasOwnProperty;

/**
 * Module exports
 */

module.exports = Manager;

/**
 * `Manager` constructor.
 *
 * @param {String} engine instance or engine uri/opts
 * @param {Object} options
 * @api public
 */

function Manager (uri, opts) {
  if (!(this instanceof Manager)) return new Manager(uri, opts);
  if (uri && ('object' === typeof uri)) {
    opts = uri;
    uri = undefined;
  }
  opts = opts || {};

  opts.path = opts.path || '/socket.io';
  this.nsps = {};
  this.subs = [];
  this.opts = opts;
  this.reconnection(opts.reconnection !== false);
  this.reconnectionAttempts(opts.reconnectionAttempts || Infinity);
  this.reconnectionDelay(opts.reconnectionDelay || 1000);
  this.reconnectionDelayMax(opts.reconnectionDelayMax || 5000);
  this.randomizationFactor(opts.randomizationFactor || 0.5);
  this.backoff = new Backoff({
    min: this.reconnectionDelay(),
    max: this.reconnectionDelayMax(),
    jitter: this.randomizationFactor()
  });
  this.timeout(null == opts.timeout ? 20000 : opts.timeout);
  this.readyState = 'closed';
  this.uri = uri;
  this.connecting = [];
  this.lastPing = null;
  this.encoding = false;
  this.packetBuffer = [];
  var _parser = opts.parser || parser;
  this.encoder = new _parser.Encoder();
  this.decoder = new _parser.Decoder();
  this.autoConnect = opts.autoConnect !== false;
  if (this.autoConnect) this.open();
}

/**
 * Propagate given event to sockets and emit on `this`
 *
 * @api private
 */

Manager.prototype.emitAll = function () {
  this.emit.apply(this, arguments);
  for (var nsp in this.nsps) {
    if (has.call(this.nsps, nsp)) {
      this.nsps[nsp].emit.apply(this.nsps[nsp], arguments);
    }
  }
};

/**
 * Update `socket.id` of all sockets
 *
 * @api private
 */

Manager.prototype.updateSocketIds = function () {
  for (var nsp in this.nsps) {
    if (has.call(this.nsps, nsp)) {
      this.nsps[nsp].id = this.generateId(nsp);
    }
  }
};

/**
 * generate `socket.id` for the given `nsp`
 *
 * @param {String} nsp
 * @return {String}
 * @api private
 */

Manager.prototype.generateId = function (nsp) {
  return (nsp === '/' ? '' : (nsp + '#')) + this.engine.id;
};

/**
 * Mix in `Emitter`.
 */

Emitter(Manager.prototype);

/**
 * Sets the `reconnection` config.
 *
 * @param {Boolean} true/false if it should automatically reconnect
 * @return {Manager} self or value
 * @api public
 */

Manager.prototype.reconnection = function (v) {
  if (!arguments.length) return this._reconnection;
  this._reconnection = !!v;
  return this;
};

/**
 * Sets the reconnection attempts config.
 *
 * @param {Number} max reconnection attempts before giving up
 * @return {Manager} self or value
 * @api public
 */

Manager.prototype.reconnectionAttempts = function (v) {
  if (!arguments.length) return this._reconnectionAttempts;
  this._reconnectionAttempts = v;
  return this;
};

/**
 * Sets the delay between reconnections.
 *
 * @param {Number} delay
 * @return {Manager} self or value
 * @api public
 */

Manager.prototype.reconnectionDelay = function (v) {
  if (!arguments.length) return this._reconnectionDelay;
  this._reconnectionDelay = v;
  this.backoff && this.backoff.setMin(v);
  return this;
};

Manager.prototype.randomizationFactor = function (v) {
  if (!arguments.length) return this._randomizationFactor;
  this._randomizationFactor = v;
  this.backoff && this.backoff.setJitter(v);
  return this;
};

/**
 * Sets the maximum delay between reconnections.
 *
 * @param {Number} delay
 * @return {Manager} self or value
 * @api public
 */

Manager.prototype.reconnectionDelayMax = function (v) {
  if (!arguments.length) return this._reconnectionDelayMax;
  this._reconnectionDelayMax = v;
  this.backoff && this.backoff.setMax(v);
  return this;
};

/**
 * Sets the connection timeout. `false` to disable
 *
 * @return {Manager} self or value
 * @api public
 */

Manager.prototype.timeout = function (v) {
  if (!arguments.length) return this._timeout;
  this._timeout = v;
  return this;
};

/**
 * Starts trying to reconnect if reconnection is enabled and we have not
 * started reconnecting yet
 *
 * @api private
 */

Manager.prototype.maybeReconnectOnOpen = function () {
  // Only try to reconnect if it's the first time we're connecting
  if (!this.reconnecting && this._reconnection && this.backoff.attempts === 0) {
    // keeps reconnection from firing twice for the same reconnection loop
    this.reconnect();
  }
};

/**
 * Sets the current transport `socket`.
 *
 * @param {Function} optional, callback
 * @return {Manager} self
 * @api public
 */

Manager.prototype.open =
Manager.prototype.connect = function (fn, opts) {
  debug('readyState %s', this.readyState);
  if (~this.readyState.indexOf('open')) return this;

  debug('opening %s', this.uri);
  this.engine = eio(this.uri, this.opts);
  var socket = this.engine;
  var self = this;
  this.readyState = 'opening';
  this.skipReconnect = false;

  // emit `open`
  var openSub = on(socket, 'open', function () {
    self.onopen();
    fn && fn();
  });

  // emit `connect_error`
  var errorSub = on(socket, 'error', function (data) {
    debug('connect_error');
    self.cleanup();
    self.readyState = 'closed';
    self.emitAll('connect_error', data);
    if (fn) {
      var err = new Error('Connection error');
      err.data = data;
      fn(err);
    } else {
      // Only do this if there is no fn to handle the error
      self.maybeReconnectOnOpen();
    }
  });

  // emit `connect_timeout`
  if (false !== this._timeout) {
    var timeout = this._timeout;
    debug('connect attempt will timeout after %d', timeout);

    // set timer
    var timer = setTimeout(function () {
      debug('connect attempt timed out after %d', timeout);
      openSub.destroy();
      socket.close();
      socket.emit('error', 'timeout');
      self.emitAll('connect_timeout', timeout);
    }, timeout);

    this.subs.push({
      destroy: function () {
        clearTimeout(timer);
      }
    });
  }

  this.subs.push(openSub);
  this.subs.push(errorSub);

  return this;
};

/**
 * Called upon transport open.
 *
 * @api private
 */

Manager.prototype.onopen = function () {
  debug('open');

  // clear old subs
  this.cleanup();

  // mark as open
  this.readyState = 'open';
  this.emit('open');

  // add new subs
  var socket = this.engine;
  this.subs.push(on(socket, 'data', bind(this, 'ondata')));
  this.subs.push(on(socket, 'ping', bind(this, 'onping')));
  this.subs.push(on(socket, 'pong', bind(this, 'onpong')));
  this.subs.push(on(socket, 'error', bind(this, 'onerror')));
  this.subs.push(on(socket, 'close', bind(this, 'onclose')));
  this.subs.push(on(this.decoder, 'decoded', bind(this, 'ondecoded')));
};

/**
 * Called upon a ping.
 *
 * @api private
 */

Manager.prototype.onping = function () {
  this.lastPing = new Date();
  this.emitAll('ping');
};

/**
 * Called upon a packet.
 *
 * @api private
 */

Manager.prototype.onpong = function () {
  this.emitAll('pong', new Date() - this.lastPing);
};

/**
 * Called with data.
 *
 * @api private
 */

Manager.prototype.ondata = function (data) {
  this.decoder.add(data);
};

/**
 * Called when parser fully decodes a packet.
 *
 * @api private
 */

Manager.prototype.ondecoded = function (packet) {
  this.emit('packet', packet);
};

/**
 * Called upon socket error.
 *
 * @api private
 */

Manager.prototype.onerror = function (err) {
  debug('error', err);
  this.emitAll('error', err);
};

/**
 * Creates a new socket for the given `nsp`.
 *
 * @return {Socket}
 * @api public
 */

Manager.prototype.socket = function (nsp, opts) {
  var socket = this.nsps[nsp];
  if (!socket) {
    socket = new Socket(this, nsp, opts);
    this.nsps[nsp] = socket;
    var self = this;
    socket.on('connecting', onConnecting);
    socket.on('connect', function () {
      socket.id = self.generateId(nsp);
    });

    if (this.autoConnect) {
      // manually call here since connecting event is fired before listening
      onConnecting();
    }
  }

  function onConnecting () {
    if (!~indexOf(self.connecting, socket)) {
      self.connecting.push(socket);
    }
  }

  return socket;
};

/**
 * Called upon a socket close.
 *
 * @param {Socket} socket
 */

Manager.prototype.destroy = function (socket) {
  var index = indexOf(this.connecting, socket);
  if (~index) this.connecting.splice(index, 1);
  if (this.connecting.length) return;

  this.close();
};

/**
 * Writes a packet.
 *
 * @param {Object} packet
 * @api private
 */

Manager.prototype.packet = function (packet) {
  debug('writing packet %j', packet);
  var self = this;
  if (packet.query && packet.type === 0) packet.nsp += '?' + packet.query;

  if (!self.encoding) {
    // encode, then write to engine with result
    self.encoding = true;
    this.encoder.encode(packet, function (encodedPackets) {
      for (var i = 0; i < encodedPackets.length; i++) {
        self.engine.write(encodedPackets[i], packet.options);
      }
      self.encoding = false;
      self.processPacketQueue();
    });
  } else { // add packet to the queue
    self.packetBuffer.push(packet);
  }
};

/**
 * If packet buffer is non-empty, begins encoding the
 * next packet in line.
 *
 * @api private
 */

Manager.prototype.processPacketQueue = function () {
  if (this.packetBuffer.length > 0 && !this.encoding) {
    var pack = this.packetBuffer.shift();
    this.packet(pack);
  }
};

/**
 * Clean up transport subscriptions and packet buffer.
 *
 * @api private
 */

Manager.prototype.cleanup = function () {
  debug('cleanup');

  var subsLength = this.subs.length;
  for (var i = 0; i < subsLength; i++) {
    var sub = this.subs.shift();
    sub.destroy();
  }

  this.packetBuffer = [];
  this.encoding = false;
  this.lastPing = null;

  this.decoder.destroy();
};

/**
 * Close the current socket.
 *
 * @api private
 */

Manager.prototype.close =
Manager.prototype.disconnect = function () {
  debug('disconnect');
  this.skipReconnect = true;
  this.reconnecting = false;
  if ('opening' === this.readyState) {
    // `onclose` will not fire because
    // an open event never happened
    this.cleanup();
  }
  this.backoff.reset();
  this.readyState = 'closed';
  if (this.engine) this.engine.close();
};

/**
 * Called upon engine close.
 *
 * @api private
 */

Manager.prototype.onclose = function (reason) {
  debug('onclose');

  this.cleanup();
  this.backoff.reset();
  this.readyState = 'closed';
  this.emit('close', reason);

  if (this._reconnection && !this.skipReconnect) {
    this.reconnect();
  }
};

/**
 * Attempt a reconnection.
 *
 * @api private
 */

Manager.prototype.reconnect = function () {
  if (this.reconnecting || this.skipReconnect) return this;

  var self = this;

  if (this.backoff.attempts >= this._reconnectionAttempts) {
    debug('reconnect failed');
    this.backoff.reset();
    this.emitAll('reconnect_failed');
    this.reconnecting = false;
  } else {
    var delay = this.backoff.duration();
    debug('will wait %dms before reconnect attempt', delay);

    this.reconnecting = true;
    var timer = setTimeout(function () {
      if (self.skipReconnect) return;

      debug('attempting reconnect');
      self.emitAll('reconnect_attempt', self.backoff.attempts);
      self.emitAll('reconnecting', self.backoff.attempts);

      // check again for the case socket closed in above events
      if (self.skipReconnect) return;

      self.open(function (err) {
        if (err) {
          debug('reconnect attempt error');
          self.reconnecting = false;
          self.reconnect();
          self.emitAll('reconnect_error', err.data);
        } else {
          debug('reconnect success');
          self.onreconnect();
        }
      });
    }, delay);

    this.subs.push({
      destroy: function () {
        clearTimeout(timer);
      }
    });
  }
};

/**
 * Called upon successful reconnect.
 *
 * @api private
 */

Manager.prototype.onreconnect = function () {
  var attempt = this.backoff.attempts;
  this.reconnecting = false;
  this.backoff.reset();
  this.updateSocketIds();
  this.emitAll('reconnect', attempt);
};


/***/ }),

/***/ "./node_modules/socket.io-client/lib/on.js":
/*!*************************************************!*\
  !*** ./node_modules/socket.io-client/lib/on.js ***!
  \*************************************************/
/*! no static exports found */
/*! ModuleConcatenation bailout: Module is not an ECMAScript module */
/***/ (function(module, exports) {


/**
 * Module exports.
 */

module.exports = on;

/**
 * Helper for subscriptions.
 *
 * @param {Object|EventEmitter} obj with `Emitter` mixin or `EventEmitter`
 * @param {String} event name
 * @param {Function} callback
 * @api public
 */

function on (obj, ev, fn) {
  obj.on(ev, fn);
  return {
    destroy: function () {
      obj.removeListener(ev, fn);
    }
  };
}


/***/ }),

/***/ "./node_modules/socket.io-client/lib/socket.js":
/*!*****************************************************!*\
  !*** ./node_modules/socket.io-client/lib/socket.js ***!
  \*****************************************************/
/*! no static exports found */
/*! ModuleConcatenation bailout: Module is not an ECMAScript module */
/***/ (function(module, exports, __webpack_require__) {


/**
 * Module dependencies.
 */

var parser = __webpack_require__(/*! socket.io-parser */ "./node_modules/socket.io-client/node_modules/socket.io-parser/index.js");
var Emitter = __webpack_require__(/*! component-emitter */ "./node_modules/component-emitter/index.js");
var toArray = __webpack_require__(/*! to-array */ "./node_modules/to-array/index.js");
var on = __webpack_require__(/*! ./on */ "./node_modules/socket.io-client/lib/on.js");
var bind = __webpack_require__(/*! component-bind */ "./node_modules/component-bind/index.js");
var debug = __webpack_require__(/*! debug */ "./node_modules/socket.io-client/node_modules/debug/src/browser.js")('socket.io-client:socket');
var parseqs = __webpack_require__(/*! parseqs */ "./node_modules/parseqs/index.js");
var hasBin = __webpack_require__(/*! has-binary2 */ "./node_modules/has-binary2/index.js");

/**
 * Module exports.
 */

module.exports = exports = Socket;

/**
 * Internal events (blacklisted).
 * These events can't be emitted by the user.
 *
 * @api private
 */

var events = {
  connect: 1,
  connect_error: 1,
  connect_timeout: 1,
  connecting: 1,
  disconnect: 1,
  error: 1,
  reconnect: 1,
  reconnect_attempt: 1,
  reconnect_failed: 1,
  reconnect_error: 1,
  reconnecting: 1,
  ping: 1,
  pong: 1
};

/**
 * Shortcut to `Emitter#emit`.
 */

var emit = Emitter.prototype.emit;

/**
 * `Socket` constructor.
 *
 * @api public
 */

function Socket (io, nsp, opts) {
  this.io = io;
  this.nsp = nsp;
  this.json = this; // compat
  this.ids = 0;
  this.acks = {};
  this.receiveBuffer = [];
  this.sendBuffer = [];
  this.connected = false;
  this.disconnected = true;
  this.flags = {};
  if (opts && opts.query) {
    this.query = opts.query;
  }
  if (this.io.autoConnect) this.open();
}

/**
 * Mix in `Emitter`.
 */

Emitter(Socket.prototype);

/**
 * Subscribe to open, close and packet events
 *
 * @api private
 */

Socket.prototype.subEvents = function () {
  if (this.subs) return;

  var io = this.io;
  this.subs = [
    on(io, 'open', bind(this, 'onopen')),
    on(io, 'packet', bind(this, 'onpacket')),
    on(io, 'close', bind(this, 'onclose'))
  ];
};

/**
 * "Opens" the socket.
 *
 * @api public
 */

Socket.prototype.open =
Socket.prototype.connect = function () {
  if (this.connected) return this;

  this.subEvents();
  this.io.open(); // ensure open
  if ('open' === this.io.readyState) this.onopen();
  this.emit('connecting');
  return this;
};

/**
 * Sends a `message` event.
 *
 * @return {Socket} self
 * @api public
 */

Socket.prototype.send = function () {
  var args = toArray(arguments);
  args.unshift('message');
  this.emit.apply(this, args);
  return this;
};

/**
 * Override `emit`.
 * If the event is in `events`, it's emitted normally.
 *
 * @param {String} event name
 * @return {Socket} self
 * @api public
 */

Socket.prototype.emit = function (ev) {
  if (events.hasOwnProperty(ev)) {
    emit.apply(this, arguments);
    return this;
  }

  var args = toArray(arguments);
  var packet = {
    type: (this.flags.binary !== undefined ? this.flags.binary : hasBin(args)) ? parser.BINARY_EVENT : parser.EVENT,
    data: args
  };

  packet.options = {};
  packet.options.compress = !this.flags || false !== this.flags.compress;

  // event ack callback
  if ('function' === typeof args[args.length - 1]) {
    debug('emitting packet with ack id %d', this.ids);
    this.acks[this.ids] = args.pop();
    packet.id = this.ids++;
  }

  if (this.connected) {
    this.packet(packet);
  } else {
    this.sendBuffer.push(packet);
  }

  this.flags = {};

  return this;
};

/**
 * Sends a packet.
 *
 * @param {Object} packet
 * @api private
 */

Socket.prototype.packet = function (packet) {
  packet.nsp = this.nsp;
  this.io.packet(packet);
};

/**
 * Called upon engine `open`.
 *
 * @api private
 */

Socket.prototype.onopen = function () {
  debug('transport is open - connecting');

  // write connect packet if necessary
  if ('/' !== this.nsp) {
    if (this.query) {
      var query = typeof this.query === 'object' ? parseqs.encode(this.query) : this.query;
      debug('sending connect packet with query %s', query);
      this.packet({type: parser.CONNECT, query: query});
    } else {
      this.packet({type: parser.CONNECT});
    }
  }
};

/**
 * Called upon engine `close`.
 *
 * @param {String} reason
 * @api private
 */

Socket.prototype.onclose = function (reason) {
  debug('close (%s)', reason);
  this.connected = false;
  this.disconnected = true;
  delete this.id;
  this.emit('disconnect', reason);
};

/**
 * Called with socket packet.
 *
 * @param {Object} packet
 * @api private
 */

Socket.prototype.onpacket = function (packet) {
  var sameNamespace = packet.nsp === this.nsp;
  var rootNamespaceError = packet.type === parser.ERROR && packet.nsp === '/';

  if (!sameNamespace && !rootNamespaceError) return;

  switch (packet.type) {
    case parser.CONNECT:
      this.onconnect();
      break;

    case parser.EVENT:
      this.onevent(packet);
      break;

    case parser.BINARY_EVENT:
      this.onevent(packet);
      break;

    case parser.ACK:
      this.onack(packet);
      break;

    case parser.BINARY_ACK:
      this.onack(packet);
      break;

    case parser.DISCONNECT:
      this.ondisconnect();
      break;

    case parser.ERROR:
      this.emit('error', packet.data);
      break;
  }
};

/**
 * Called upon a server event.
 *
 * @param {Object} packet
 * @api private
 */

Socket.prototype.onevent = function (packet) {
  var args = packet.data || [];
  debug('emitting event %j', args);

  if (null != packet.id) {
    debug('attaching ack callback to event');
    args.push(this.ack(packet.id));
  }

  if (this.connected) {
    emit.apply(this, args);
  } else {
    this.receiveBuffer.push(args);
  }
};

/**
 * Produces an ack callback to emit with an event.
 *
 * @api private
 */

Socket.prototype.ack = function (id) {
  var self = this;
  var sent = false;
  return function () {
    // prevent double callbacks
    if (sent) return;
    sent = true;
    var args = toArray(arguments);
    debug('sending ack %j', args);

    self.packet({
      type: hasBin(args) ? parser.BINARY_ACK : parser.ACK,
      id: id,
      data: args
    });
  };
};

/**
 * Called upon a server acknowlegement.
 *
 * @param {Object} packet
 * @api private
 */

Socket.prototype.onack = function (packet) {
  var ack = this.acks[packet.id];
  if ('function' === typeof ack) {
    debug('calling ack %s with %j', packet.id, packet.data);
    ack.apply(this, packet.data);
    delete this.acks[packet.id];
  } else {
    debug('bad ack %s', packet.id);
  }
};

/**
 * Called upon server connect.
 *
 * @api private
 */

Socket.prototype.onconnect = function () {
  this.connected = true;
  this.disconnected = false;
  this.emit('connect');
  this.emitBuffered();
};

/**
 * Emit buffered events (received and emitted).
 *
 * @api private
 */

Socket.prototype.emitBuffered = function () {
  var i;
  for (i = 0; i < this.receiveBuffer.length; i++) {
    emit.apply(this, this.receiveBuffer[i]);
  }
  this.receiveBuffer = [];

  for (i = 0; i < this.sendBuffer.length; i++) {
    this.packet(this.sendBuffer[i]);
  }
  this.sendBuffer = [];
};

/**
 * Called upon server disconnect.
 *
 * @api private
 */

Socket.prototype.ondisconnect = function () {
  debug('server disconnect (%s)', this.nsp);
  this.destroy();
  this.onclose('io server disconnect');
};

/**
 * Called upon forced client/server side disconnections,
 * this method ensures the manager stops tracking us and
 * that reconnections don't get triggered for this.
 *
 * @api private.
 */

Socket.prototype.destroy = function () {
  if (this.subs) {
    // clean subscriptions to avoid reconnections
    for (var i = 0; i < this.subs.length; i++) {
      this.subs[i].destroy();
    }
    this.subs = null;
  }

  this.io.destroy(this);
};

/**
 * Disconnects the socket manually.
 *
 * @return {Socket} self
 * @api public
 */

Socket.prototype.close =
Socket.prototype.disconnect = function () {
  if (this.connected) {
    debug('performing disconnect (%s)', this.nsp);
    this.packet({ type: parser.DISCONNECT });
  }

  // remove socket from pool
  this.destroy();

  if (this.connected) {
    // fire events
    this.onclose('io client disconnect');
  }
  return this;
};

/**
 * Sets the compress flag.
 *
 * @param {Boolean} if `true`, compresses the sending data
 * @return {Socket} self
 * @api public
 */

Socket.prototype.compress = function (compress) {
  this.flags.compress = compress;
  return this;
};

/**
 * Sets the binary flag
 *
 * @param {Boolean} whether the emitted data contains binary
 * @return {Socket} self
 * @api public
 */

Socket.prototype.binary = function (binary) {
  this.flags.binary = binary;
  return this;
};


/***/ }),

/***/ "./node_modules/socket.io-client/lib/url.js":
/*!**************************************************!*\
  !*** ./node_modules/socket.io-client/lib/url.js ***!
  \**************************************************/
/*! no static exports found */
/*! ModuleConcatenation bailout: Module is not an ECMAScript module */
/***/ (function(module, exports, __webpack_require__) {


/**
 * Module dependencies.
 */

var parseuri = __webpack_require__(/*! parseuri */ "./node_modules/parseuri/index.js");
var debug = __webpack_require__(/*! debug */ "./node_modules/socket.io-client/node_modules/debug/src/browser.js")('socket.io-client:url');

/**
 * Module exports.
 */

module.exports = url;

/**
 * URL parser.
 *
 * @param {String} url
 * @param {Object} An object meant to mimic window.location.
 *                 Defaults to window.location.
 * @api public
 */

function url (uri, loc) {
  var obj = uri;

  // default to window.location
  loc = loc || (typeof location !== 'undefined' && location);
  if (null == uri) uri = loc.protocol + '//' + loc.host;

  // relative path support
  if ('string' === typeof uri) {
    if ('/' === uri.charAt(0)) {
      if ('/' === uri.charAt(1)) {
        uri = loc.protocol + uri;
      } else {
        uri = loc.host + uri;
      }
    }

    if (!/^(https?|wss?):\/\//.test(uri)) {
      debug('protocol-less url %s', uri);
      if ('undefined' !== typeof loc) {
        uri = loc.protocol + '//' + uri;
      } else {
        uri = 'https://' + uri;
      }
    }

    // parse
    debug('parse %s', uri);
    obj = parseuri(uri);
  }

  // make sure we treat `localhost:80` and `localhost` equally
  if (!obj.port) {
    if (/^(http|ws)$/.test(obj.protocol)) {
      obj.port = '80';
    } else if (/^(http|ws)s$/.test(obj.protocol)) {
      obj.port = '443';
    }
  }

  obj.path = obj.path || '/';

  var ipv6 = obj.host.indexOf(':') !== -1;
  var host = ipv6 ? '[' + obj.host + ']' : obj.host;

  // define unique id
  obj.id = obj.protocol + '://' + host + ':' + obj.port;
  // define href
  obj.href = obj.protocol + '://' + host + (loc && loc.port === obj.port ? '' : (':' + obj.port));

  return obj;
}


/***/ }),

/***/ "./node_modules/socket.io-client/node_modules/debug/src/browser.js":
/*!*************************************************************************!*\
  !*** ./node_modules/socket.io-client/node_modules/debug/src/browser.js ***!
  \*************************************************************************/
/*! no static exports found */
/*! ModuleConcatenation bailout: Module is not an ECMAScript module */
/***/ (function(module, exports, __webpack_require__) {

/* WEBPACK VAR INJECTION */(function(process) {/**
 * This is the web browser implementation of `debug()`.
 *
 * Expose `debug()` as the module.
 */

exports = module.exports = __webpack_require__(/*! ./debug */ "./node_modules/socket.io-client/node_modules/debug/src/debug.js");
exports.log = log;
exports.formatArgs = formatArgs;
exports.save = save;
exports.load = load;
exports.useColors = useColors;
exports.storage = 'undefined' != typeof chrome
               && 'undefined' != typeof chrome.storage
                  ? chrome.storage.local
                  : 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
 */

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') {
    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+)/));
}

/**
 * Map %j to `JSON.stringify()`, since no Web Inspectors do that by default.
 */

exports.formatters.j = function(v) {
  try {
    return JSON.stringify(v);
  } catch (err) {
    return '[UnexpectedJSONParseError]: ' + err.message;
  }
};


/**
 * Colorize log arguments if enabled.
 *
 * @api public
 */

function formatArgs(args) {
  var useColors = this.useColors;

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

  if (!useColors) return;

  var 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
  var index = 0;
  var lastC = 0;
  args[0].replace(/%[a-zA-Z%]/g, function(match) {
    if ('%%' === match) return;
    index++;
    if ('%c' === match) {
      // 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() {
  // this hackery is required for IE8/9, where
  // the `console.log` function doesn't have 'apply'
  return 'object' === typeof console
    && console.log
    && Function.prototype.apply.call(console.log, console, arguments);
}

/**
 * Save `namespaces`.
 *
 * @param {String} namespaces
 * @api private
 */

function save(namespaces) {
  try {
    if (null == namespaces) {
      exports.storage.removeItem('debug');
    } else {
      exports.storage.debug = namespaces;
    }
  } catch(e) {}
}

/**
 * Load `namespaces`.
 *
 * @return {String} returns the previously persisted debug modes
 * @api private
 */

function load() {
  var r;
  try {
    r = exports.storage.debug;
  } catch(e) {}

  // 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;
}

/**
 * Enable namespaces listed in `localStorage.debug` initially.
 */

exports.enable(load());

/**
 * 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 {
    return window.localStorage;
  } catch (e) {}
}

/* WEBPACK VAR INJECTION */}.call(this, __webpack_require__(/*! ./../../../../process/browser.js */ "./node_modules/process/browser.js")))

/***/ }),

/***/ "./node_modules/socket.io-client/node_modules/debug/src/debug.js":
/*!***********************************************************************!*\
  !*** ./node_modules/socket.io-client/node_modules/debug/src/debug.js ***!
  \***********************************************************************/
/*! no static exports found */
/*! ModuleConcatenation bailout: Module is not an ECMAScript module */
/***/ (function(module, exports, __webpack_require__) {


/**
 * This is the common logic for both the Node.js and web browser
 * implementations of `debug()`.
 *
 * Expose `debug()` as the module.
 */

exports = module.exports = createDebug.debug = createDebug['default'] = createDebug;
exports.coerce = coerce;
exports.disable = disable;
exports.enable = enable;
exports.enabled = enabled;
exports.humanize = __webpack_require__(/*! ms */ "./node_modules/ms/index.js");

/**
 * Active `debug` instances.
 */
exports.instances = [];

/**
 * The currently active debug mode names, and names to skip.
 */

exports.names = [];
exports.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".
 */

exports.formatters = {};

/**
 * Select a color.
 * @param {String} namespace
 * @return {Number}
 * @api private
 */

function selectColor(namespace) {
  var hash = 0, i;

  for (i in namespace) {
    hash  = ((hash << 5) - hash) + namespace.charCodeAt(i);
    hash |= 0; // Convert to 32bit integer
  }

  return exports.colors[Math.abs(hash) % exports.colors.length];
}

/**
 * Create a debugger with the given `namespace`.
 *
 * @param {String} namespace
 * @return {Function}
 * @api public
 */

function createDebug(namespace) {

  var prevTime;

  function debug() {
    // disabled?
    if (!debug.enabled) return;

    var self = debug;

    // set `diff` timestamp
    var curr = +new Date();
    var ms = curr - (prevTime || curr);
    self.diff = ms;
    self.prev = prevTime;
    self.curr = curr;
    prevTime = curr;

    // turn the `arguments` into a proper Array
    var args = new Array(arguments.length);
    for (var i = 0; i < args.length; i++) {
      args[i] = arguments[i];
    }

    args[0] = exports.coerce(args[0]);

    if ('string' !== typeof args[0]) {
      // anything else let's inspect with %O
      args.unshift('%O');
    }

    // apply any `formatters` transformations
    var index = 0;
    args[0] = args[0].replace(/%([a-zA-Z%])/g, function(match, format) {
      // if we encounter an escaped % then don't increase the array index
      if (match === '%%') return match;
      index++;
      var formatter = exports.formatters[format];
      if ('function' === typeof formatter) {
        var 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.)
    exports.formatArgs.call(self, args);

    var logFn = debug.log || exports.log || console.log.bind(console);
    logFn.apply(self, args);
  }

  debug.namespace = namespace;
  debug.enabled = exports.enabled(namespace);
  debug.useColors = exports.useColors();
  debug.color = selectColor(namespace);
  debug.destroy = destroy;

  // env-specific initialization logic for debug instances
  if ('function' === typeof exports.init) {
    exports.init(debug);
  }

  exports.instances.push(debug);

  return debug;
}

function destroy () {
  var index = exports.instances.indexOf(this);
  if (index !== -1) {
    exports.instances.splice(index, 1);
    return true;
  } else {
    return false;
  }
}

/**
 * Enables a debug mode by namespaces. This can include modes
 * separated by a colon and wildcards.
 *
 * @param {String} namespaces
 * @api public
 */

function enable(namespaces) {
  exports.save(namespaces);

  exports.names = [];
  exports.skips = [];

  var i;
  var split = (typeof namespaces === 'string' ? namespaces : '').split(/[\s,]+/);
  var len = split.length;

  for (i = 0; i < len; i++) {
    if (!split[i]) continue; // ignore empty strings
    namespaces = split[i].replace(/\*/g, '.*?');
    if (namespaces[0] === '-') {
      exports.skips.push(new RegExp('^' + namespaces.substr(1) + '$'));
    } else {
      exports.names.push(new RegExp('^' + namespaces + '$'));
    }
  }

  for (i = 0; i < exports.instances.length; i++) {
    var instance = exports.instances[i];
    instance.enabled = exports.enabled(instance.namespace);
  }
}

/**
 * Disable debug output.
 *
 * @api public
 */

function disable() {
  exports.enable('');
}

/**
 * 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;
  }
  var i, len;
  for (i = 0, len = exports.skips.length; i < len; i++) {
    if (exports.skips[i].test(name)) {
      return false;
    }
  }
  for (i = 0, len = exports.names.length; i < len; i++) {
    if (exports.names[i].test(name)) {
      return true;
    }
  }
  return false;
}

/**
 * Coerce `val`.
 *
 * @param {Mixed} val
 * @return {Mixed}
 * @api private
 */

function coerce(val) {
  if (val instanceof Error) return val.stack || val.message;
  return val;
}


/***/ }),

/***/ "./node_modules/socket.io-client/node_modules/engine.io-client/lib/index.js":
/*!**********************************************************************************!*\
  !*** ./node_modules/socket.io-client/node_modules/engine.io-client/lib/index.js ***!
  \**********************************************************************************/
/*! no static exports found */
/*! ModuleConcatenation bailout: Module is not an ECMAScript module */
/***/ (function(module, exports, __webpack_require__) {


module.exports = __webpack_require__(/*! ./socket */ "./node_modules/socket.io-client/node_modules/engine.io-client/lib/socket.js");

/**
 * Exports parser
 *
 * @api public
 *
 */
module.exports.parser = __webpack_require__(/*! engine.io-parser */ "./node_modules/engine.io-parser/lib/browser.js");


/***/ }),

/***/ "./node_modules/socket.io-client/node_modules/engine.io-client/lib/socket.js":
/*!***********************************************************************************!*\
  !*** ./node_modules/socket.io-client/node_modules/engine.io-client/lib/socket.js ***!
  \***********************************************************************************/
/*! no static exports found */
/*! ModuleConcatenation bailout: Module is not an ECMAScript module */
/***/ (function(module, exports, __webpack_require__) {

/**
 * Module dependencies.
 */

var transports = __webpack_require__(/*! ./transports/index */ "./node_modules/socket.io-client/node_modules/engine.io-client/lib/transports/index.js");
var Emitter = __webpack_require__(/*! component-emitter */ "./node_modules/component-emitter/index.js");
var debug = __webpack_require__(/*! debug */ "./node_modules/socket.io-client/node_modules/debug/src/browser.js")('engine.io-client:socket');
var index = __webpack_require__(/*! indexof */ "./node_modules/indexof/index.js");
var parser = __webpack_require__(/*! engine.io-parser */ "./node_modules/engine.io-parser/lib/browser.js");
var parseuri = __webpack_require__(/*! parseuri */ "./node_modules/parseuri/index.js");
var parseqs = __webpack_require__(/*! parseqs */ "./node_modules/parseqs/index.js");

/**
 * Module exports.
 */

module.exports = Socket;

/**
 * Socket constructor.
 *
 * @param {String|Object} uri or options
 * @param {Object} options
 * @api public
 */

function Socket (uri, opts) {
  if (!(this instanceof Socket)) return new Socket(uri, opts);

  opts = opts || {};

  if (uri && 'object' === typeof uri) {
    opts = uri;
    uri = null;
  }

  if (uri) {
    uri = parseuri(uri);
    opts.hostname = uri.host;
    opts.secure = uri.protocol === 'https' || uri.protocol === 'wss';
    opts.port = uri.port;
    if (uri.query) opts.query = uri.query;
  } else if (opts.host) {
    opts.hostname = parseuri(opts.host).host;
  }

  this.secure = null != opts.secure ? opts.secure
    : (typeof location !== 'undefined' && 'https:' === location.protocol);

  if (opts.hostname && !opts.port) {
    // if no port is specified manually, use the protocol default
    opts.port = this.secure ? '443' : '80';
  }

  this.agent = opts.agent || false;
  this.hostname = opts.hostname ||
    (typeof location !== 'undefined' ? location.hostname : 'localhost');
  this.port = opts.port || (typeof location !== 'undefined' && location.port
      ? location.port
      : (this.secure ? 443 : 80));
  this.query = opts.query || {};
  if ('string' === typeof this.query) this.query = parseqs.decode(this.query);
  this.upgrade = false !== opts.upgrade;
  this.path = (opts.path || '/engine.io').replace(/\/$/, '') + '/';
  this.forceJSONP = !!opts.forceJSONP;
  this.jsonp = false !== opts.jsonp;
  this.forceBase64 = !!opts.forceBase64;
  this.enablesXDR = !!opts.enablesXDR;
  this.timestampParam = opts.timestampParam || 't';
  this.timestampRequests = opts.timestampRequests;
  this.transports = opts.transports || ['polling', 'websocket'];
  this.transportOptions = opts.transportOptions || {};
  this.readyState = '';
  this.writeBuffer = [];
  this.prevBufferLen = 0;
  this.policyPort = opts.policyPort || 843;
  this.rememberUpgrade = opts.rememberUpgrade || false;
  this.binaryType = null;
  this.onlyBinaryUpgrades = opts.onlyBinaryUpgrades;
  this.perMessageDeflate = false !== opts.perMessageDeflate ? (opts.perMessageDeflate || {}) : false;

  if (true === this.perMessageDeflate) this.perMessageDeflate = {};
  if (this.perMessageDeflate && null == this.perMessageDeflate.threshold) {
    this.perMessageDeflate.threshold = 1024;
  }

  // SSL options for Node.js client
  this.pfx = opts.pfx || null;
  this.key = opts.key || null;
  this.passphrase = opts.passphrase || null;
  this.cert = opts.cert || null;
  this.ca = opts.ca || null;
  this.ciphers = opts.ciphers || null;
  this.rejectUnauthorized = opts.rejectUnauthorized === undefined ? true : opts.rejectUnauthorized;
  this.forceNode = !!opts.forceNode;

  // detect ReactNative environment
  this.isReactNative = (typeof navigator !== 'undefined' && typeof navigator.product === 'string' && navigator.product.toLowerCase() === 'reactnative');

  // other options for Node.js or ReactNative client
  if (typeof self === 'undefined' || this.isReactNative) {
    if (opts.extraHeaders && Object.keys(opts.extraHeaders).length > 0) {
      this.extraHeaders = opts.extraHeaders;
    }

    if (opts.localAddress) {
      this.localAddress = opts.localAddress;
    }
  }

  // set on handshake
  this.id = null;
  this.upgrades = null;
  this.pingInterval = null;
  this.pingTimeout = null;

  // set on heartbeat
  this.pingIntervalTimer = null;
  this.pingTimeoutTimer = null;

  this.open();
}

Socket.priorWebsocketSuccess = false;

/**
 * Mix in `Emitter`.
 */

Emitter(Socket.prototype);

/**
 * Protocol version.
 *
 * @api public
 */

Socket.protocol = parser.protocol; // this is an int

/**
 * Expose deps for legacy compatibility
 * and standalone browser access.
 */

Socket.Socket = Socket;
Socket.Transport = __webpack_require__(/*! ./transport */ "./node_modules/socket.io-client/node_modules/engine.io-client/lib/transport.js");
Socket.transports = __webpack_require__(/*! ./transports/index */ "./node_modules/socket.io-client/node_modules/engine.io-client/lib/transports/index.js");
Socket.parser = __webpack_require__(/*! engine.io-parser */ "./node_modules/engine.io-parser/lib/browser.js");

/**
 * Creates transport of the given type.
 *
 * @param {String} transport name
 * @return {Transport}
 * @api private
 */

Socket.prototype.createTransport = function (name) {
  debug('creating transport "%s"', name);
  var query = clone(this.query);

  // append engine.io protocol identifier
  query.EIO = parser.protocol;

  // transport name
  query.transport = name;

  // per-transport options
  var options = this.transportOptions[name] || {};

  // session id if we already have one
  if (this.id) query.sid = this.id;

  var transport = new transports[name]({
    query: query,
    socket: this,
    agent: options.agent || this.agent,
    hostname: options.hostname || this.hostname,
    port: options.port || this.port,
    secure: options.secure || this.secure,
    path: options.path || this.path,
    forceJSONP: options.forceJSONP || this.forceJSONP,
    jsonp: options.jsonp || this.jsonp,
    forceBase64: options.forceBase64 || this.forceBase64,
    enablesXDR: options.enablesXDR || this.enablesXDR,
    timestampRequests: options.timestampRequests || this.timestampRequests,
    timestampParam: options.timestampParam || this.timestampParam,
    policyPort: options.policyPort || this.policyPort,
    pfx: options.pfx || this.pfx,
    key: options.key || this.key,
    passphrase: options.passphrase || this.passphrase,
    cert: options.cert || this.cert,
    ca: options.ca || this.ca,
    ciphers: options.ciphers || this.ciphers,
    rejectUnauthorized: options.rejectUnauthorized || this.rejectUnauthorized,
    perMessageDeflate: options.perMessageDeflate || this.perMessageDeflate,
    extraHeaders: options.extraHeaders || this.extraHeaders,
    forceNode: options.forceNode || this.forceNode,
    localAddress: options.localAddress || this.localAddress,
    requestTimeout: options.requestTimeout || this.requestTimeout,
    protocols: options.protocols || void (0),
    isReactNative: this.isReactNative
  });

  return transport;
};

function clone (obj) {
  var o = {};
  for (var i in obj) {
    if (obj.hasOwnProperty(i)) {
      o[i] = obj[i];
    }
  }
  return o;
}

/**
 * Initializes transport to use and starts probe.
 *
 * @api private
 */
Socket.prototype.open = function () {
  var transport;
  if (this.rememberUpgrade && Socket.priorWebsocketSuccess && this.transports.indexOf('websocket') !== -1) {
    transport = 'websocket';
  } else if (0 === this.transports.length) {
    // Emit error on next tick so it can be listened to
    var self = this;
    setTimeout(function () {
      self.emit('error', 'No transports available');
    }, 0);
    return;
  } else {
    transport = this.transports[0];
  }
  this.readyState = 'opening';

  // Retry with the next transport if the transport is disabled (jsonp: false)
  try {
    transport = this.createTransport(transport);
  } catch (e) {
    this.transports.shift();
    this.open();
    return;
  }

  transport.open();
  this.setTransport(transport);
};

/**
 * Sets the current transport. Disables the existing one (if any).
 *
 * @api private
 */

Socket.prototype.setTransport = function (transport) {
  debug('setting transport %s', transport.name);
  var self = this;

  if (this.transport) {
    debug('clearing existing transport %s', this.transport.name);
    this.transport.removeAllListeners();
  }

  // set up transport
  this.transport = transport;

  // set up transport listeners
  transport
  .on('drain', function () {
    self.onDrain();
  })
  .on('packet', function (packet) {
    self.onPacket(packet);
  })
  .on('error', function (e) {
    self.onError(e);
  })
  .on('close', function () {
    self.onClose('transport close');
  });
};

/**
 * Probes a transport.
 *
 * @param {String} transport name
 * @api private
 */

Socket.prototype.probe = function (name) {
  debug('probing transport "%s"', name);
  var transport = this.createTransport(name, { probe: 1 });
  var failed = false;
  var self = this;

  Socket.priorWebsocketSuccess = false;

  function onTransportOpen () {
    if (self.onlyBinaryUpgrades) {
      var upgradeLosesBinary = !this.supportsBinary && self.transport.supportsBinary;
      failed = failed || upgradeLosesBinary;
    }
    if (failed) return;

    debug('probe transport "%s" opened', name);
    transport.send([{ type: 'ping', data: 'probe' }]);
    transport.once('packet', function (msg) {
      if (failed) return;
      if ('pong' === msg.type && 'probe' === msg.data) {
        debug('probe transport "%s" pong', name);
        self.upgrading = true;
        self.emit('upgrading', transport);
        if (!transport) return;
        Socket.priorWebsocketSuccess = 'websocket' === transport.name;

        debug('pausing current transport "%s"', self.transport.name);
        self.transport.pause(function () {
          if (failed) return;
          if ('closed' === self.readyState) return;
          debug('changing transport and sending upgrade packet');

          cleanup();

          self.setTransport(transport);
          transport.send([{ type: 'upgrade' }]);
          self.emit('upgrade', transport);
          transport = null;
          self.upgrading = false;
          self.flush();
        });
      } else {
        debug('probe transport "%s" failed', name);
        var err = new Error('probe error');
        err.transport = transport.name;
        self.emit('upgradeError', err);
      }
    });
  }

  function freezeTransport () {
    if (failed) return;

    // Any callback called by transport should be ignored since now
    failed = true;

    cleanup();

    transport.close();
    transport = null;
  }

  // Handle any error that happens while probing
  function onerror (err) {
    var error = new Error('probe error: ' + err);
    error.transport = transport.name;

    freezeTransport();

    debug('probe transport "%s" failed because of error: %s', name, err);

    self.emit('upgradeError', error);
  }

  function onTransportClose () {
    onerror('transport closed');
  }

  // When the socket is closed while we're probing
  function onclose () {
    onerror('socket closed');
  }

  // When the socket is upgraded while we're probing
  function onupgrade (to) {
    if (transport && to.name !== transport.name) {
      debug('"%s" works - aborting "%s"', to.name, transport.name);
      freezeTransport();
    }
  }

  // Remove all listeners on the transport and on self
  function cleanup () {
    transport.removeListener('open', onTransportOpen);
    transport.removeListener('error', onerror);
    transport.removeListener('close', onTransportClose);
    self.removeListener('close', onclose);
    self.removeListener('upgrading', onupgrade);
  }

  transport.once('open', onTransportOpen);
  transport.once('error', onerror);
  transport.once('close', onTransportClose);

  this.once('close', onclose);
  this.once('upgrading', onupgrade);

  transport.open();
};

/**
 * Called when connection is deemed open.
 *
 * @api public
 */

Socket.prototype.onOpen = function () {
  debug('socket open');
  this.readyState = 'open';
  Socket.priorWebsocketSuccess = 'websocket' === this.transport.name;
  this.emit('open');
  this.flush();

  // we check for `readyState` in case an `open`
  // listener already closed the socket
  if ('open' === this.readyState && this.upgrade && this.transport.pause) {
    debug('starting upgrade probes');
    for (var i = 0, l = this.upgrades.length; i < l; i++) {
      this.probe(this.upgrades[i]);
    }
  }
};

/**
 * Handles a packet.
 *
 * @api private
 */

Socket.prototype.onPacket = function (packet) {
  if ('opening' === this.readyState || 'open' === this.readyState ||
      'closing' === this.readyState) {
    debug('socket receive: type "%s", data "%s"', packet.type, packet.data);

    this.emit('packet', packet);

    // Socket is live - any packet counts
    this.emit('heartbeat');

    switch (packet.type) {
      case 'open':
        this.onHandshake(JSON.parse(packet.data));
        break;

      case 'pong':
        this.setPing();
        this.emit('pong');
        break;

      case 'error':
        var err = new Error('server error');
        err.code = packet.data;
        this.onError(err);
        break;

      case 'message':
        this.emit('data', packet.data);
        this.emit('message', packet.data);
        break;
    }
  } else {
    debug('packet received with socket readyState "%s"', this.readyState);
  }
};

/**
 * Called upon handshake completion.
 *
 * @param {Object} handshake obj
 * @api private
 */

Socket.prototype.onHandshake = function (data) {
  this.emit('handshake', data);
  this.id = data.sid;
  this.transport.query.sid = data.sid;
  this.upgrades = this.filterUpgrades(data.upgrades);
  this.pingInterval = data.pingInterval;
  this.pingTimeout = data.pingTimeout;
  this.onOpen();
  // In case open handler closes socket
  if ('closed' === this.readyState) return;
  this.setPing();

  // Prolong liveness of socket on heartbeat
  this.removeListener('heartbeat', this.onHeartbeat);
  this.on('heartbeat', this.onHeartbeat);
};

/**
 * Resets ping timeout.
 *
 * @api private
 */

Socket.prototype.onHeartbeat = function (timeout) {
  clearTimeout(this.pingTimeoutTimer);
  var self = this;
  self.pingTimeoutTimer = setTimeout(function () {
    if ('closed' === self.readyState) return;
    self.onClose('ping timeout');
  }, timeout || (self.pingInterval + self.pingTimeout));
};

/**
 * Pings server every `this.pingInterval` and expects response
 * within `this.pingTimeout` or closes connection.
 *
 * @api private
 */

Socket.prototype.setPing = function () {
  var self = this;
  clearTimeout(self.pingIntervalTimer);
  self.pingIntervalTimer = setTimeout(function () {
    debug('writing ping packet - expecting pong within %sms', self.pingTimeout);
    self.ping();
    self.onHeartbeat(self.pingTimeout);
  }, self.pingInterval);
};

/**
* Sends a ping packet.
*
* @api private
*/

Socket.prototype.ping = function () {
  var self = this;
  this.sendPacket('ping', function () {
    self.emit('ping');
  });
};

/**
 * Called on `drain` event
 *
 * @api private
 */

Socket.prototype.onDrain = function () {
  this.writeBuffer.splice(0, this.prevBufferLen);

  // setting prevBufferLen = 0 is very important
  // for example, when upgrading, upgrade packet is sent over,
  // and a nonzero prevBufferLen could cause problems on `drain`
  this.prevBufferLen = 0;

  if (0 === this.writeBuffer.length) {
    this.emit('drain');
  } else {
    this.flush();
  }
};

/**
 * Flush write buffers.
 *
 * @api private
 */

Socket.prototype.flush = function () {
  if ('closed' !== this.readyState && this.transport.writable &&
    !this.upgrading && this.writeBuffer.length) {
    debug('flushing %d packets in socket', this.writeBuffer.length);
    this.transport.send(this.writeBuffer);
    // keep track of current length of writeBuffer
    // splice writeBuffer and callbackBuffer on `drain`
    this.prevBufferLen = this.writeBuffer.length;
    this.emit('flush');
  }
};

/**
 * Sends a message.
 *
 * @param {String} message.
 * @param {Function} callback function.
 * @param {Object} options.
 * @return {Socket} for chaining.
 * @api public
 */

Socket.prototype.write =
Socket.prototype.send = function (msg, options, fn) {
  this.sendPacket('message', msg, options, fn);
  return this;
};

/**
 * Sends a packet.
 *
 * @param {String} packet type.
 * @param {String} data.
 * @param {Object} options.
 * @param {Function} callback function.
 * @api private
 */

Socket.prototype.sendPacket = function (type, data, options, fn) {
  if ('function' === typeof data) {
    fn = data;
    data = undefined;
  }

  if ('function' === typeof options) {
    fn = options;
    options = null;
  }

  if ('closing' === this.readyState || 'closed' === this.readyState) {
    return;
  }

  options = options || {};
  options.compress = false !== options.compress;

  var packet = {
    type: type,
    data: data,
    options: options
  };
  this.emit('packetCreate', packet);
  this.writeBuffer.push(packet);
  if (fn) this.once('flush', fn);
  this.flush();
};

/**
 * Closes the connection.
 *
 * @api private
 */

Socket.prototype.close = function () {
  if ('opening' === this.readyState || 'open' === this.readyState) {
    this.readyState = 'closing';

    var self = this;

    if (this.writeBuffer.length) {
      this.once('drain', function () {
        if (this.upgrading) {
          waitForUpgrade();
        } else {
          close();
        }
      });
    } else if (this.upgrading) {
      waitForUpgrade();
    } else {
      close();
    }
  }

  function close () {
    self.onClose('forced close');
    debug('socket closing - telling transport to close');
    self.transport.close();
  }

  function cleanupAndClose () {
    self.removeListener('upgrade', cleanupAndClose);
    self.removeListener('upgradeError', cleanupAndClose);
    close();
  }

  function waitForUpgrade () {
    // wait for upgrade to finish since we can't send packets while pausing a transport
    self.once('upgrade', cleanupAndClose);
    self.once('upgradeError', cleanupAndClose);
  }

  return this;
};

/**
 * Called upon transport error
 *
 * @api private
 */

Socket.prototype.onError = function (err) {
  debug('socket error %j', err);
  Socket.priorWebsocketSuccess = false;
  this.emit('error', err);
  this.onClose('transport error', err);
};

/**
 * Called upon transport close.
 *
 * @api private
 */

Socket.prototype.onClose = function (reason, desc) {
  if ('opening' === this.readyState || 'open' === this.readyState || 'closing' === this.readyState) {
    debug('socket close with reason: "%s"', reason);
    var self = this;

    // clear timers
    clearTimeout(this.pingIntervalTimer);
    clearTimeout(this.pingTimeoutTimer);

    // stop event from firing again for transport
    this.transport.removeAllListeners('close');

    // ensure transport won't stay open
    this.transport.close();

    // ignore further transport communication
    this.transport.removeAllListeners();

    // set ready state
    this.readyState = 'closed';

    // clear session id
    this.id = null;

    // emit close event
    this.emit('close', reason, desc);

    // clean buffers after, so users can still
    // grab the buffers on `close` event
    self.writeBuffer = [];
    self.prevBufferLen = 0;
  }
};

/**
 * Filters upgrades, returning only those matching client transports.
 *
 * @param {Array} server upgrades
 * @api private
 *
 */

Socket.prototype.filterUpgrades = function (upgrades) {
  var filteredUpgrades = [];
  for (var i = 0, j = upgrades.length; i < j; i++) {
    if (~index(this.transports, upgrades[i])) filteredUpgrades.push(upgrades[i]);
  }
  return filteredUpgrades;
};


/***/ }),

/***/ "./node_modules/socket.io-client/node_modules/engine.io-client/lib/transport.js":
/*!**************************************************************************************!*\
  !*** ./node_modules/socket.io-client/node_modules/engine.io-client/lib/transport.js ***!
  \**************************************************************************************/
/*! no static exports found */
/*! ModuleConcatenation bailout: Module is not an ECMAScript module */
/***/ (function(module, exports, __webpack_require__) {

/**
 * Module dependencies.
 */

var parser = __webpack_require__(/*! engine.io-parser */ "./node_modules/engine.io-parser/lib/browser.js");
var Emitter = __webpack_require__(/*! component-emitter */ "./node_modules/component-emitter/index.js");

/**
 * Module exports.
 */

module.exports = Transport;

/**
 * Transport abstract constructor.
 *
 * @param {Object} options.
 * @api private
 */

function Transport (opts) {
  this.path = opts.path;
  this.hostname = opts.hostname;
  this.port = opts.port;
  this.secure = opts.secure;
  this.query = opts.query;
  this.timestampParam = opts.timestampParam;
  this.timestampRequests = opts.timestampRequests;
  this.readyState = '';
  this.agent = opts.agent || false;
  this.socket = opts.socket;
  this.enablesXDR = opts.enablesXDR;

  // SSL options for Node.js client
  this.pfx = opts.pfx;
  this.key = opts.key;
  this.passphrase = opts.passphrase;
  this.cert = opts.cert;
  this.ca = opts.ca;
  this.ciphers = opts.ciphers;
  this.rejectUnauthorized = opts.rejectUnauthorized;
  this.forceNode = opts.forceNode;

  // results of ReactNative environment detection
  this.isReactNative = opts.isReactNative;

  // other options for Node.js client
  this.extraHeaders = opts.extraHeaders;
  this.localAddress = opts.localAddress;
}

/**
 * Mix in `Emitter`.
 */

Emitter(Transport.prototype);

/**
 * Emits an error.
 *
 * @param {String} str
 * @return {Transport} for chaining
 * @api public
 */

Transport.prototype.onError = function (msg, desc) {
  var err = new Error(msg);
  err.type = 'TransportError';
  err.description = desc;
  this.emit('error', err);
  return this;
};

/**
 * Opens the transport.
 *
 * @api public
 */

Transport.prototype.open = function () {
  if ('closed' === this.readyState || '' === this.readyState) {
    this.readyState = 'opening';
    this.doOpen();
  }

  return this;
};

/**
 * Closes the transport.
 *
 * @api private
 */

Transport.prototype.close = function () {
  if ('opening' === this.readyState || 'open' === this.readyState) {
    this.doClose();
    this.onClose();
  }

  return this;
};

/**
 * Sends multiple packets.
 *
 * @param {Array} packets
 * @api private
 */

Transport.prototype.send = function (packets) {
  if ('open' === this.readyState) {
    this.write(packets);
  } else {
    throw new Error('Transport not open');
  }
};

/**
 * Called upon open
 *
 * @api private
 */

Transport.prototype.onOpen = function () {
  this.readyState = 'open';
  this.writable = true;
  this.emit('open');
};

/**
 * Called with data.
 *
 * @param {String} data
 * @api private
 */

Transport.prototype.onData = function (data) {
  var packet = parser.decodePacket(data, this.socket.binaryType);
  this.onPacket(packet);
};

/**
 * Called with a decoded packet.
 */

Transport.prototype.onPacket = function (packet) {
  this.emit('packet', packet);
};

/**
 * Called upon close.
 *
 * @api private
 */

Transport.prototype.onClose = function () {
  this.readyState = 'closed';
  this.emit('close');
};


/***/ }),

/***/ "./node_modules/socket.io-client/node_modules/engine.io-client/lib/transports/index.js":
/*!*********************************************************************************************!*\
  !*** ./node_modules/socket.io-client/node_modules/engine.io-client/lib/transports/index.js ***!
  \*********************************************************************************************/
/*! no static exports found */
/*! ModuleConcatenation bailout: Module is not an ECMAScript module */
/***/ (function(module, exports, __webpack_require__) {

/**
 * Module dependencies
 */

var XMLHttpRequest = __webpack_require__(/*! xmlhttprequest-ssl */ "./node_modules/socket.io-client/node_modules/engine.io-client/lib/xmlhttprequest.js");
var XHR = __webpack_require__(/*! ./polling-xhr */ "./node_modules/socket.io-client/node_modules/engine.io-client/lib/transports/polling-xhr.js");
var JSONP = __webpack_require__(/*! ./polling-jsonp */ "./node_modules/socket.io-client/node_modules/engine.io-client/lib/transports/polling-jsonp.js");
var websocket = __webpack_require__(/*! ./websocket */ "./node_modules/socket.io-client/node_modules/engine.io-client/lib/transports/websocket.js");

/**
 * Export transports.
 */

exports.polling = polling;
exports.websocket = websocket;

/**
 * Polling transport polymorphic constructor.
 * Decides on xhr vs jsonp based on feature detection.
 *
 * @api private
 */

function polling (opts) {
  var xhr;
  var xd = false;
  var xs = false;
  var jsonp = false !== opts.jsonp;

  if (typeof location !== 'undefined') {
    var isSSL = 'https:' === location.protocol;
    var port = location.port;

    // some user agents have empty `location.port`
    if (!port) {
      port = isSSL ? 443 : 80;
    }

    xd = opts.hostname !== location.hostname || port !== opts.port;
    xs = opts.secure !== isSSL;
  }

  opts.xdomain = xd;
  opts.xscheme = xs;
  xhr = new XMLHttpRequest(opts);

  if ('open' in xhr && !opts.forceJSONP) {
    return new XHR(opts);
  } else {
    if (!jsonp) throw new Error('JSONP disabled');
    return new JSONP(opts);
  }
}


/***/ }),

/***/ "./node_modules/socket.io-client/node_modules/engine.io-client/lib/transports/polling-jsonp.js":
/*!*****************************************************************************************************!*\
  !*** ./node_modules/socket.io-client/node_modules/engine.io-client/lib/transports/polling-jsonp.js ***!
  \*****************************************************************************************************/
/*! no static exports found */
/*! ModuleConcatenation bailout: Module is not an ECMAScript module */
/***/ (function(module, exports, __webpack_require__) {

/* WEBPACK VAR INJECTION */(function(global) {/**
 * Module requirements.
 */

var Polling = __webpack_require__(/*! ./polling */ "./node_modules/socket.io-client/node_modules/engine.io-client/lib/transports/polling.js");
var inherit = __webpack_require__(/*! component-inherit */ "./node_modules/component-inherit/index.js");

/**
 * Module exports.
 */

module.exports = JSONPPolling;

/**
 * Cached regular expressions.
 */

var rNewline = /\n/g;
var rEscapedNewline = /\\n/g;

/**
 * Global JSONP callbacks.
 */

var callbacks;

/**
 * Noop.
 */

function empty () { }

/**
 * Until https://github.com/tc39/proposal-global is shipped.
 */
function glob () {
  return typeof self !== 'undefined' ? self
      : typeof window !== 'undefined' ? window
      : typeof global !== 'undefined' ? global : {};
}

/**
 * JSONP Polling constructor.
 *
 * @param {Object} opts.
 * @api public
 */

function JSONPPolling (opts) {
  Polling.call(this, opts);

  this.query = this.query || {};

  // define global callbacks array if not present
  // we do this here (lazily) to avoid unneeded global pollution
  if (!callbacks) {
    // we need to consider multiple engines in the same page
    var global = glob();
    callbacks = global.___eio = (global.___eio || []);
  }

  // callback identifier
  this.index = callbacks.length;

  // add callback to jsonp global
  var self = this;
  callbacks.push(function (msg) {
    self.onData(msg);
  });

  // append to query string
  this.query.j = this.index;

  // prevent spurious errors from being emitted when the window is unloaded
  if (typeof addEventListener === 'function') {
    addEventListener('beforeunload', function () {
      if (self.script) self.script.onerror = empty;
    }, false);
  }
}

/**
 * Inherits from Polling.
 */

inherit(JSONPPolling, Polling);

/*
 * JSONP only supports binary as base64 encoded strings
 */

JSONPPolling.prototype.supportsBinary = false;

/**
 * Closes the socket.
 *
 * @api private
 */

JSONPPolling.prototype.doClose = function () {
  if (this.script) {
    this.script.parentNode.removeChild(this.script);
    this.script = null;
  }

  if (this.form) {
    this.form.parentNode.removeChild(this.form);
    this.form = null;
    this.iframe = null;
  }

  Polling.prototype.doClose.call(this);
};

/**
 * Starts a poll cycle.
 *
 * @api private
 */

JSONPPolling.prototype.doPoll = function () {
  var self = this;
  var script = document.createElement('script');

  if (this.script) {
    this.script.parentNode.removeChild(this.script);
    this.script = null;
  }

  script.async = true;
  script.src = this.uri();
  script.onerror = function (e) {
    self.onError('jsonp poll error', e);
  };

  var insertAt = document.getElementsByTagName('script')[0];
  if (insertAt) {
    insertAt.parentNode.insertBefore(script, insertAt);
  } else {
    (document.head || document.body).appendChild(script);
  }
  this.script = script;

  var isUAgecko = 'undefined' !== typeof navigator && /gecko/i.test(navigator.userAgent);

  if (isUAgecko) {
    setTimeout(function () {
      var iframe = document.createElement('iframe');
      document.body.appendChild(iframe);
      document.body.removeChild(iframe);
    }, 100);
  }
};

/**
 * Writes with a hidden iframe.
 *
 * @param {String} data to send
 * @param {Function} called upon flush.
 * @api private
 */

JSONPPolling.prototype.doWrite = function (data, fn) {
  var self = this;

  if (!this.form) {
    var form = document.createElement('form');
    var area = document.createElement('textarea');
    var id = this.iframeId = 'eio_iframe_' + this.index;
    var iframe;

    form.className = 'socketio';
    form.style.position = 'absolute';
    form.style.top = '-1000px';
    form.style.left = '-1000px';
    form.target = id;
    form.method = 'POST';
    form.setAttribute('accept-charset', 'utf-8');
    area.name = 'd';
    form.appendChild(area);
    document.body.appendChild(form);

    this.form = form;
    this.area = area;
  }

  this.form.action = this.uri();

  function complete () {
    initIframe();
    fn();
  }

  function initIframe () {
    if (self.iframe) {
      try {
        self.form.removeChild(self.iframe);
      } catch (e) {
        self.onError('jsonp polling iframe removal error', e);
      }
    }

    try {
      // ie6 dynamic iframes with target="" support (thanks Chris Lambacher)
      var html = '<iframe src="javascript:0" name="' + self.iframeId + '">';
      iframe = document.createElement(html);
    } catch (e) {
      iframe = document.createElement('iframe');
      iframe.name = self.iframeId;
      iframe.src = 'javascript:0';
    }

    iframe.id = self.iframeId;

    self.form.appendChild(iframe);
    self.iframe = iframe;
  }

  initIframe();

  // escape \n to prevent it from being converted into \r\n by some UAs
  // double escaping is required for escaped new lines because unescaping of new lines can be done safely on server-side
  data = data.replace(rEscapedNewline, '\\\n');
  this.area.value = data.replace(rNewline, '\\n');

  try {
    this.form.submit();
  } catch (e) {}

  if (this.iframe.attachEvent) {
    this.iframe.onreadystatechange = function () {
      if (self.iframe.readyState === 'complete') {
        complete();
      }
    };
  } else {
    this.iframe.onload = complete;
  }
};

/* WEBPACK VAR INJECTION */}.call(this, __webpack_require__(/*! ./../../../../../webpack/buildin/global.js */ "./node_modules/webpack/buildin/global.js")))

/***/ }),

/***/ "./node_modules/socket.io-client/node_modules/engine.io-client/lib/transports/polling-xhr.js":
/*!***************************************************************************************************!*\
  !*** ./node_modules/socket.io-client/node_modules/engine.io-client/lib/transports/polling-xhr.js ***!
  \***************************************************************************************************/
/*! no static exports found */
/*! ModuleConcatenation bailout: Module is not an ECMAScript module */
/***/ (function(module, exports, __webpack_require__) {

/* global attachEvent */

/**
 * Module requirements.
 */

var XMLHttpRequest = __webpack_require__(/*! xmlhttprequest-ssl */ "./node_modules/socket.io-client/node_modules/engine.io-client/lib/xmlhttprequest.js");
var Polling = __webpack_require__(/*! ./polling */ "./node_modules/socket.io-client/node_modules/engine.io-client/lib/transports/polling.js");
var Emitter = __webpack_require__(/*! component-emitter */ "./node_modules/component-emitter/index.js");
var inherit = __webpack_require__(/*! component-inherit */ "./node_modules/component-inherit/index.js");
var debug = __webpack_require__(/*! debug */ "./node_modules/socket.io-client/node_modules/debug/src/browser.js")('engine.io-client:polling-xhr');

/**
 * Module exports.
 */

module.exports = XHR;
module.exports.Request = Request;

/**
 * Empty function
 */

function empty () {}

/**
 * XHR Polling constructor.
 *
 * @param {Object} opts
 * @api public
 */

function XHR (opts) {
  Polling.call(this, opts);
  this.requestTimeout = opts.requestTimeout;
  this.extraHeaders = opts.extraHeaders;

  if (typeof location !== 'undefined') {
    var isSSL = 'https:' === location.protocol;
    var port = location.port;

    // some user agents have empty `location.port`
    if (!port) {
      port = isSSL ? 443 : 80;
    }

    this.xd = (typeof location !== 'undefined' && opts.hostname !== location.hostname) ||
      port !== opts.port;
    this.xs = opts.secure !== isSSL;
  }
}

/**
 * Inherits from Polling.
 */

inherit(XHR, Polling);

/**
 * XHR supports binary
 */

XHR.prototype.supportsBinary = true;

/**
 * Creates a request.
 *
 * @param {String} method
 * @api private
 */

XHR.prototype.request = function (opts) {
  opts = opts || {};
  opts.uri = this.uri();
  opts.xd = this.xd;
  opts.xs = this.xs;
  opts.agent = this.agent || false;
  opts.supportsBinary = this.supportsBinary;
  opts.enablesXDR = this.enablesXDR;

  // SSL options for Node.js client
  opts.pfx = this.pfx;
  opts.key = this.key;
  opts.passphrase = this.passphrase;
  opts.cert = this.cert;
  opts.ca = this.ca;
  opts.ciphers = this.ciphers;
  opts.rejectUnauthorized = this.rejectUnauthorized;
  opts.requestTimeout = this.requestTimeout;

  // other options for Node.js client
  opts.extraHeaders = this.extraHeaders;

  return new Request(opts);
};

/**
 * Sends data.
 *
 * @param {String} data to send.
 * @param {Function} called upon flush.
 * @api private
 */

XHR.prototype.doWrite = function (data, fn) {
  var isBinary = typeof data !== 'string' && data !== undefined;
  var req = this.request({ method: 'POST', data: data, isBinary: isBinary });
  var self = this;
  req.on('success', fn);
  req.on('error', function (err) {
    self.onError('xhr post error', err);
  });
  this.sendXhr = req;
};

/**
 * Starts a poll cycle.
 *
 * @api private
 */

XHR.prototype.doPoll = function () {
  debug('xhr poll');
  var req = this.request();
  var self = this;
  req.on('data', function (data) {
    self.onData(data);
  });
  req.on('error', function (err) {
    self.onError('xhr poll error', err);
  });
  this.pollXhr = req;
};

/**
 * Request constructor
 *
 * @param {Object} options
 * @api public
 */

function Request (opts) {
  this.method = opts.method || 'GET';
  this.uri = opts.uri;
  this.xd = !!opts.xd;
  this.xs = !!opts.xs;
  this.async = false !== opts.async;
  this.data = undefined !== opts.data ? opts.data : null;
  this.agent = opts.agent;
  this.isBinary = opts.isBinary;
  this.supportsBinary = opts.supportsBinary;
  this.enablesXDR = opts.enablesXDR;
  this.requestTimeout = opts.requestTimeout;

  // SSL options for Node.js client
  this.pfx = opts.pfx;
  this.key = opts.key;
  this.passphrase = opts.passphrase;
  this.cert = opts.cert;
  this.ca = opts.ca;
  this.ciphers = opts.ciphers;
  this.rejectUnauthorized = opts.rejectUnauthorized;

  // other options for Node.js client
  this.extraHeaders = opts.extraHeaders;

  this.create();
}

/**
 * Mix in `Emitter`.
 */

Emitter(Request.prototype);

/**
 * Creates the XHR object and sends the request.
 *
 * @api private
 */

Request.prototype.create = function () {
  var opts = { agent: this.agent, xdomain: this.xd, xscheme: this.xs, enablesXDR: this.enablesXDR };

  // SSL options for Node.js client
  opts.pfx = this.pfx;
  opts.key = this.key;
  opts.passphrase = this.passphrase;
  opts.cert = this.cert;
  opts.ca = this.ca;
  opts.ciphers = this.ciphers;
  opts.rejectUnauthorized = this.rejectUnauthorized;

  var xhr = this.xhr = new XMLHttpRequest(opts);
  var self = this;

  try {
    debug('xhr open %s: %s', this.method, this.uri);
    xhr.open(this.method, this.uri, this.async);
    try {
      if (this.extraHeaders) {
        xhr.setDisableHeaderCheck && xhr.setDisableHeaderCheck(true);
        for (var i in this.extraHeaders) {
          if (this.extraHeaders.hasOwnProperty(i)) {
            xhr.setRequestHeader(i, this.extraHeaders[i]);
          }
        }
      }
    } catch (e) {}

    if ('POST' === this.method) {
      try {
        if (this.isBinary) {
          xhr.setRequestHeader('Content-type', 'application/octet-stream');
        } else {
          xhr.setRequestHeader('Content-type', 'text/plain;charset=UTF-8');
        }
      } catch (e) {}
    }

    try {
      xhr.setRequestHeader('Accept', '*/*');
    } catch (e) {}

    // ie6 check
    if ('withCredentials' in xhr) {
      xhr.withCredentials = true;
    }

    if (this.requestTimeout) {
      xhr.timeout = this.requestTimeout;
    }

    if (this.hasXDR()) {
      xhr.onload = function () {
        self.onLoad();
      };
      xhr.onerror = function () {
        self.onError(xhr.responseText);
      };
    } else {
      xhr.onreadystatechange = function () {
        if (xhr.readyState === 2) {
          try {
            var contentType = xhr.getResponseHeader('Content-Type');
            if (self.supportsBinary && contentType === 'application/octet-stream') {
              xhr.responseType = 'arraybuffer';
            }
          } catch (e) {}
        }
        if (4 !== xhr.readyState) return;
        if (200 === xhr.status || 1223 === xhr.status) {
          self.onLoad();
        } else {
          // make sure the `error` event handler that's user-set
          // does not throw in the same tick and gets caught here
          setTimeout(function () {
            self.onError(xhr.status);
          }, 0);
        }
      };
    }

    debug('xhr data %s', this.data);
    xhr.send(this.data);
  } catch (e) {
    // Need to defer since .create() is called directly fhrom the constructor
    // and thus the 'error' event can only be only bound *after* this exception
    // occurs.  Therefore, also, we cannot throw here at all.
    setTimeout(function () {
      self.onError(e);
    }, 0);
    return;
  }

  if (typeof document !== 'undefined') {
    this.index = Request.requestsCount++;
    Request.requests[this.index] = this;
  }
};

/**
 * Called upon successful response.
 *
 * @api private
 */

Request.prototype.onSuccess = function () {
  this.emit('success');
  this.cleanup();
};

/**
 * Called if we have data.
 *
 * @api private
 */

Request.prototype.onData = function (data) {
  this.emit('data', data);
  this.onSuccess();
};

/**
 * Called upon error.
 *
 * @api private
 */

Request.prototype.onError = function (err) {
  this.emit('error', err);
  this.cleanup(true);
};

/**
 * Cleans up house.
 *
 * @api private
 */

Request.prototype.cleanup = function (fromError) {
  if ('undefined' === typeof this.xhr || null === this.xhr) {
    return;
  }
  // xmlhttprequest
  if (this.hasXDR()) {
    this.xhr.onload = this.xhr.onerror = empty;
  } else {
    this.xhr.onreadystatechange = empty;
  }

  if (fromError) {
    try {
      this.xhr.abort();
    } catch (e) {}
  }

  if (typeof document !== 'undefined') {
    delete Request.requests[this.index];
  }

  this.xhr = null;
};

/**
 * Called upon load.
 *
 * @api private
 */

Request.prototype.onLoad = function () {
  var data;
  try {
    var contentType;
    try {
      contentType = this.xhr.getResponseHeader('Content-Type');
    } catch (e) {}
    if (contentType === 'application/octet-stream') {
      data = this.xhr.response || this.xhr.responseText;
    } else {
      data = this.xhr.responseText;
    }
  } catch (e) {
    this.onError(e);
  }
  if (null != data) {
    this.onData(data);
  }
};

/**
 * Check if it has XDomainRequest.
 *
 * @api private
 */

Request.prototype.hasXDR = function () {
  return typeof XDomainRequest !== 'undefined' && !this.xs && this.enablesXDR;
};

/**
 * Aborts the request.
 *
 * @api public
 */

Request.prototype.abort = function () {
  this.cleanup();
};

/**
 * Aborts pending requests when unloading the window. This is needed to prevent
 * memory leaks (e.g. when using IE) and to ensure that no spurious error is
 * emitted.
 */

Request.requestsCount = 0;
Request.requests = {};

if (typeof document !== 'undefined') {
  if (typeof attachEvent === 'function') {
    attachEvent('onunload', unloadHandler);
  } else if (typeof addEventListener === 'function') {
    var terminationEvent = 'onpagehide' in self ? 'pagehide' : 'unload';
    addEventListener(terminationEvent, unloadHandler, false);
  }
}

function unloadHandler () {
  for (var i in Request.requests) {
    if (Request.requests.hasOwnProperty(i)) {
      Request.requests[i].abort();
    }
  }
}


/***/ }),

/***/ "./node_modules/socket.io-client/node_modules/engine.io-client/lib/transports/polling.js":
/*!***********************************************************************************************!*\
  !*** ./node_modules/socket.io-client/node_modules/engine.io-client/lib/transports/polling.js ***!
  \***********************************************************************************************/
/*! no static exports found */
/*! ModuleConcatenation bailout: Module is not an ECMAScript module */
/***/ (function(module, exports, __webpack_require__) {

/**
 * Module dependencies.
 */

var Transport = __webpack_require__(/*! ../transport */ "./node_modules/socket.io-client/node_modules/engine.io-client/lib/transport.js");
var parseqs = __webpack_require__(/*! parseqs */ "./node_modules/parseqs/index.js");
var parser = __webpack_require__(/*! engine.io-parser */ "./node_modules/engine.io-parser/lib/browser.js");
var inherit = __webpack_require__(/*! component-inherit */ "./node_modules/component-inherit/index.js");
var yeast = __webpack_require__(/*! yeast */ "./node_modules/yeast/index.js");
var debug = __webpack_require__(/*! debug */ "./node_modules/socket.io-client/node_modules/debug/src/browser.js")('engine.io-client:polling');

/**
 * Module exports.
 */

module.exports = Polling;

/**
 * Is XHR2 supported?
 */

var hasXHR2 = (function () {
  var XMLHttpRequest = __webpack_require__(/*! xmlhttprequest-ssl */ "./node_modules/socket.io-client/node_modules/engine.io-client/lib/xmlhttprequest.js");
  var xhr = new XMLHttpRequest({ xdomain: false });
  return null != xhr.responseType;
})();

/**
 * Polling interface.
 *
 * @param {Object} opts
 * @api private
 */

function Polling (opts) {
  var forceBase64 = (opts && opts.forceBase64);
  if (!hasXHR2 || forceBase64) {
    this.supportsBinary = false;
  }
  Transport.call(this, opts);
}

/**
 * Inherits from Transport.
 */

inherit(Polling, Transport);

/**
 * Transport name.
 */

Polling.prototype.name = 'polling';

/**
 * Opens the socket (triggers polling). We write a PING message to determine
 * when the transport is open.
 *
 * @api private
 */

Polling.prototype.doOpen = function () {
  this.poll();
};

/**
 * Pauses polling.
 *
 * @param {Function} callback upon buffers are flushed and transport is paused
 * @api private
 */

Polling.prototype.pause = function (onPause) {
  var self = this;

  this.readyState = 'pausing';

  function pause () {
    debug('paused');
    self.readyState = 'paused';
    onPause();
  }

  if (this.polling || !this.writable) {
    var total = 0;

    if (this.polling) {
      debug('we are currently polling - waiting to pause');
      total++;
      this.once('pollComplete', function () {
        debug('pre-pause polling complete');
        --total || pause();
      });
    }

    if (!this.writable) {
      debug('we are currently writing - waiting to pause');
      total++;
      this.once('drain', function () {
        debug('pre-pause writing complete');
        --total || pause();
      });
    }
  } else {
    pause();
  }
};

/**
 * Starts polling cycle.
 *
 * @api public
 */

Polling.prototype.poll = function () {
  debug('polling');
  this.polling = true;
  this.doPoll();
  this.emit('poll');
};

/**
 * Overloads onData to detect payloads.
 *
 * @api private
 */

Polling.prototype.onData = function (data) {
  var self = this;
  debug('polling got data %s', data);
  var callback = function (packet, index, total) {
    // if its the first message we consider the transport open
    if ('opening' === self.readyState) {
      self.onOpen();
    }

    // if its a close packet, we close the ongoing requests
    if ('close' === packet.type) {
      self.onClose();
      return false;
    }

    // otherwise bypass onData and handle the message
    self.onPacket(packet);
  };

  // decode payload
  parser.decodePayload(data, this.socket.binaryType, callback);

  // if an event did not trigger closing
  if ('closed' !== this.readyState) {
    // if we got data we're not polling
    this.polling = false;
    this.emit('pollComplete');

    if ('open' === this.readyState) {
      this.poll();
    } else {
      debug('ignoring poll - transport state "%s"', this.readyState);
    }
  }
};

/**
 * For polling, send a close packet.
 *
 * @api private
 */

Polling.prototype.doClose = function () {
  var self = this;

  function close () {
    debug('writing close packet');
    self.write([{ type: 'close' }]);
  }

  if ('open' === this.readyState) {
    debug('transport open - closing');
    close();
  } else {
    // in case we're trying to close while
    // handshaking is in progress (GH-164)
    debug('transport not open - deferring close');
    this.once('open', close);
  }
};

/**
 * Writes a packets payload.
 *
 * @param {Array} data packets
 * @param {Function} drain callback
 * @api private
 */

Polling.prototype.write = function (packets) {
  var self = this;
  this.writable = false;
  var callbackfn = function () {
    self.writable = true;
    self.emit('drain');
  };

  parser.encodePayload(packets, this.supportsBinary, function (data) {
    self.doWrite(data, callbackfn);
  });
};

/**
 * Generates uri for connection.
 *
 * @api private
 */

Polling.prototype.uri = function () {
  var query = this.query || {};
  var schema = this.secure ? 'https' : 'http';
  var port = '';

  // cache busting is forced
  if (false !== this.timestampRequests) {
    query[this.timestampParam] = yeast();
  }

  if (!this.supportsBinary && !query.sid) {
    query.b64 = 1;
  }

  query = parseqs.encode(query);

  // avoid port if default for schema
  if (this.port && (('https' === schema && Number(this.port) !== 443) ||
     ('http' === schema && Number(this.port) !== 80))) {
    port = ':' + this.port;
  }

  // prepend ? to query
  if (query.length) {
    query = '?' + query;
  }

  var ipv6 = this.hostname.indexOf(':') !== -1;
  return schema + '://' + (ipv6 ? '[' + this.hostname + ']' : this.hostname) + port + this.path + query;
};


/***/ }),

/***/ "./node_modules/socket.io-client/node_modules/engine.io-client/lib/transports/websocket.js":
/*!*************************************************************************************************!*\
  !*** ./node_modules/socket.io-client/node_modules/engine.io-client/lib/transports/websocket.js ***!
  \*************************************************************************************************/
/*! no static exports found */
/*! ModuleConcatenation bailout: Module is not an ECMAScript module */
/***/ (function(module, exports, __webpack_require__) {

/* WEBPACK VAR INJECTION */(function(Buffer) {/**
 * Module dependencies.
 */

var Transport = __webpack_require__(/*! ../transport */ "./node_modules/socket.io-client/node_modules/engine.io-client/lib/transport.js");
var parser = __webpack_require__(/*! engine.io-parser */ "./node_modules/engine.io-parser/lib/browser.js");
var parseqs = __webpack_require__(/*! parseqs */ "./node_modules/parseqs/index.js");
var inherit = __webpack_require__(/*! component-inherit */ "./node_modules/component-inherit/index.js");
var yeast = __webpack_require__(/*! yeast */ "./node_modules/yeast/index.js");
var debug = __webpack_require__(/*! debug */ "./node_modules/socket.io-client/node_modules/debug/src/browser.js")('engine.io-client:websocket');

var BrowserWebSocket, NodeWebSocket;

if (typeof WebSocket !== 'undefined') {
  BrowserWebSocket = WebSocket;
} else if (typeof self !== 'undefined') {
  BrowserWebSocket = self.WebSocket || self.MozWebSocket;
} else {
  try {
    NodeWebSocket = __webpack_require__(/*! ws */ 0);
  } catch (e) { }
}

/**
 * Get either the `WebSocket` or `MozWebSocket` globals
 * in the browser or try to resolve WebSocket-compatible
 * interface exposed by `ws` for Node-like environment.
 */

var WebSocketImpl = BrowserWebSocket || NodeWebSocket;

/**
 * Module exports.
 */

module.exports = WS;

/**
 * WebSocket transport constructor.
 *
 * @api {Object} connection options
 * @api public
 */

function WS (opts) {
  var forceBase64 = (opts && opts.forceBase64);
  if (forceBase64) {
    this.supportsBinary = false;
  }
  this.perMessageDeflate = opts.perMessageDeflate;
  this.usingBrowserWebSocket = BrowserWebSocket && !opts.forceNode;
  this.protocols = opts.protocols;
  if (!this.usingBrowserWebSocket) {
    WebSocketImpl = NodeWebSocket;
  }
  Transport.call(this, opts);
}

/**
 * Inherits from Transport.
 */

inherit(WS, Transport);

/**
 * Transport name.
 *
 * @api public
 */

WS.prototype.name = 'websocket';

/*
 * WebSockets support binary
 */

WS.prototype.supportsBinary = true;

/**
 * Opens socket.
 *
 * @api private
 */

WS.prototype.doOpen = function () {
  if (!this.check()) {
    // let probe timeout
    return;
  }

  var uri = this.uri();
  var protocols = this.protocols;
  var opts = {
    agent: this.agent,
    perMessageDeflate: this.perMessageDeflate
  };

  // SSL options for Node.js client
  opts.pfx = this.pfx;
  opts.key = this.key;
  opts.passphrase = this.passphrase;
  opts.cert = this.cert;
  opts.ca = this.ca;
  opts.ciphers = this.ciphers;
  opts.rejectUnauthorized = this.rejectUnauthorized;
  if (this.extraHeaders) {
    opts.headers = this.extraHeaders;
  }
  if (this.localAddress) {
    opts.localAddress = this.localAddress;
  }

  try {
    this.ws =
      this.usingBrowserWebSocket && !this.isReactNative
        ? protocols
          ? new WebSocketImpl(uri, protocols)
          : new WebSocketImpl(uri)
        : new WebSocketImpl(uri, protocols, opts);
  } catch (err) {
    return this.emit('error', err);
  }

  if (this.ws.binaryType === undefined) {
    this.supportsBinary = false;
  }

  if (this.ws.supports && this.ws.supports.binary) {
    this.supportsBinary = true;
    this.ws.binaryType = 'nodebuffer';
  } else {
    this.ws.binaryType = 'arraybuffer';
  }

  this.addEventListeners();
};

/**
 * Adds event listeners to the socket
 *
 * @api private
 */

WS.prototype.addEventListeners = function () {
  var self = this;

  this.ws.onopen = function () {
    self.onOpen();
  };
  this.ws.onclose = function () {
    self.onClose();
  };
  this.ws.onmessage = function (ev) {
    self.onData(ev.data);
  };
  this.ws.onerror = function (e) {
    self.onError('websocket error', e);
  };
};

/**
 * Writes data to socket.
 *
 * @param {Array} array of packets.
 * @api private
 */

WS.prototype.write = function (packets) {
  var self = this;
  this.writable = false;

  // encodePacket efficient as it uses WS framing
  // no need for encodePayload
  var total = packets.length;
  for (var i = 0, l = total; i < l; i++) {
    (function (packet) {
      parser.encodePacket(packet, self.supportsBinary, function (data) {
        if (!self.usingBrowserWebSocket) {
          // always create a new object (GH-437)
          var opts = {};
          if (packet.options) {
            opts.compress = packet.options.compress;
          }

          if (self.perMessageDeflate) {
            var len = 'string' === typeof data ? Buffer.byteLength(data) : data.length;
            if (len < self.perMessageDeflate.threshold) {
              opts.compress = false;
            }
          }
        }

        // Sometimes the websocket has already been closed but the browser didn't
        // have a chance of informing us about it yet, in that case send will
        // throw an error
        try {
          if (self.usingBrowserWebSocket) {
            // TypeError is thrown when passing the second argument on Safari
            self.ws.send(data);
          } else {
            self.ws.send(data, opts);
          }
        } catch (e) {
          debug('websocket closed before onclose event');
        }

        --total || done();
      });
    })(packets[i]);
  }

  function done () {
    self.emit('flush');

    // fake drain
    // defer to next tick to allow Socket to clear writeBuffer
    setTimeout(function () {
      self.writable = true;
      self.emit('drain');
    }, 0);
  }
};

/**
 * Called upon close
 *
 * @api private
 */

WS.prototype.onClose = function () {
  Transport.prototype.onClose.call(this);
};

/**
 * Closes socket.
 *
 * @api private
 */

WS.prototype.doClose = function () {
  if (typeof this.ws !== 'undefined') {
    this.ws.close();
  }
};

/**
 * Generates uri for connection.
 *
 * @api private
 */

WS.prototype.uri = function () {
  var query = this.query || {};
  var schema = this.secure ? 'wss' : 'ws';
  var port = '';

  // avoid port if default for schema
  if (this.port && (('wss' === schema && Number(this.port) !== 443) ||
    ('ws' === schema && Number(this.port) !== 80))) {
    port = ':' + this.port;
  }

  // append timestamp to URI
  if (this.timestampRequests) {
    query[this.timestampParam] = yeast();
  }

  // communicate binary support capabilities
  if (!this.supportsBinary) {
    query.b64 = 1;
  }

  query = parseqs.encode(query);

  // prepend ? to query
  if (query.length) {
    query = '?' + query;
  }

  var ipv6 = this.hostname.indexOf(':') !== -1;
  return schema + '://' + (ipv6 ? '[' + this.hostname + ']' : this.hostname) + port + this.path + query;
};

/**
 * Feature detection for WebSocket.
 *
 * @return {Boolean} whether this transport is available.
 * @api public
 */

WS.prototype.check = function () {
  return !!WebSocketImpl && !('__initialize' in WebSocketImpl && this.name === WS.prototype.name);
};

/* WEBPACK VAR INJECTION */}.call(this, __webpack_require__(/*! ./../../../../../node-libs-browser/node_modules/buffer/index.js */ "./node_modules/node-libs-browser/node_modules/buffer/index.js").Buffer))

/***/ }),

/***/ "./node_modules/socket.io-client/node_modules/engine.io-client/lib/xmlhttprequest.js":
/*!*******************************************************************************************!*\
  !*** ./node_modules/socket.io-client/node_modules/engine.io-client/lib/xmlhttprequest.js ***!
  \*******************************************************************************************/
/*! no static exports found */
/*! ModuleConcatenation bailout: Module is not an ECMAScript module */
/***/ (function(module, exports, __webpack_require__) {

// browser shim for xmlhttprequest module

var hasCORS = __webpack_require__(/*! has-cors */ "./node_modules/has-cors/index.js");

module.exports = function (opts) {
  var xdomain = opts.xdomain;

  // scheme must be same when usign XDomainRequest
  // http://blogs.msdn.com/b/ieinternals/archive/2010/05/13/xdomainrequest-restrictions-limitations-and-workarounds.aspx
  var xscheme = opts.xscheme;

  // XDomainRequest has a flow of not sending cookie, therefore it should be disabled as a default.
  // https://github.com/Automattic/engine.io-client/pull/217
  var enablesXDR = opts.enablesXDR;

  // XMLHttpRequest can be disabled on IE
  try {
    if ('undefined' !== typeof XMLHttpRequest && (!xdomain || hasCORS)) {
      return new XMLHttpRequest();
    }
  } catch (e) { }

  // Use XDomainRequest for IE8 if enablesXDR is true
  // because loading bar keeps flashing when using jsonp-polling
  // https://github.com/yujiosaka/socke.io-ie8-loading-example
  try {
    if ('undefined' !== typeof XDomainRequest && !xscheme && enablesXDR) {
      return new XDomainRequest();
    }
  } catch (e) { }

  if (!xdomain) {
    try {
      return new self[['Active'].concat('Object').join('X')]('Microsoft.XMLHTTP');
    } catch (e) { }
  }
};


/***/ }),

/***/ "./node_modules/socket.io-client/node_modules/isarray/index.js":
/*!*********************************************************************!*\
  !*** ./node_modules/socket.io-client/node_modules/isarray/index.js ***!
  \*********************************************************************/
/*! no static exports found */
/*! ModuleConcatenation bailout: Module is not an ECMAScript module */
/***/ (function(module, exports) {

var toString = {}.toString;

module.exports = Array.isArray || function (arr) {
  return toString.call(arr) == '[object Array]';
};


/***/ }),

/***/ "./node_modules/socket.io-client/node_modules/socket.io-parser/binary.js":
/*!*******************************************************************************!*\
  !*** ./node_modules/socket.io-client/node_modules/socket.io-parser/binary.js ***!
  \*******************************************************************************/
/*! no static exports found */
/*! ModuleConcatenation bailout: Module is not an ECMAScript module */
/***/ (function(module, exports, __webpack_require__) {

/*global Blob,File*/

/**
 * Module requirements
 */

var isArray = __webpack_require__(/*! isarray */ "./node_modules/socket.io-client/node_modules/isarray/index.js");
var isBuf = __webpack_require__(/*! ./is-buffer */ "./node_modules/socket.io-client/node_modules/socket.io-parser/is-buffer.js");
var toString = Object.prototype.toString;
var withNativeBlob = typeof Blob === 'function' || (typeof Blob !== 'undefined' && toString.call(Blob) === '[object BlobConstructor]');
var withNativeFile = typeof File === 'function' || (typeof File !== 'undefined' && toString.call(File) === '[object FileConstructor]');

/**
 * Replaces every Buffer | ArrayBuffer in packet with a numbered placeholder.
 * Anything with blobs or files should be fed through removeBlobs before coming
 * here.
 *
 * @param {Object} packet - socket.io event packet
 * @return {Object} with deconstructed packet and list of buffers
 * @api public
 */

exports.deconstructPacket = function(packet) {
  var buffers = [];
  var packetData = packet.data;
  var pack = packet;
  pack.data = _deconstructPacket(packetData, buffers);
  pack.attachments = buffers.length; // number of binary 'attachments'
  return {packet: pack, buffers: buffers};
};

function _deconstructPacket(data, buffers) {
  if (!data) return data;

  if (isBuf(data)) {
    var placeholder = { _placeholder: true, num: buffers.length };
    buffers.push(data);
    return placeholder;
  } else if (isArray(data)) {
    var newData = new Array(data.length);
    for (var i = 0; i < data.length; i++) {
      newData[i] = _deconstructPacket(data[i], buffers);
    }
    return newData;
  } else if (typeof data === 'object' && !(data instanceof Date)) {
    var newData = {};
    for (var key in data) {
      newData[key] = _deconstructPacket(data[key], buffers);
    }
    return newData;
  }
  return data;
}

/**
 * Reconstructs a binary packet from its placeholder packet and buffers
 *
 * @param {Object} packet - event packet with placeholders
 * @param {Array} buffers - binary buffers to put in placeholder positions
 * @return {Object} reconstructed packet
 * @api public
 */

exports.reconstructPacket = function(packet, buffers) {
  packet.data = _reconstructPacket(packet.data, buffers);
  packet.attachments = undefined; // no longer useful
  return packet;
};

function _reconstructPacket(data, buffers) {
  if (!data) return data;

  if (data && data._placeholder) {
    return buffers[data.num]; // appropriate buffer (should be natural order anyway)
  } else if (isArray(data)) {
    for (var i = 0; i < data.length; i++) {
      data[i] = _reconstructPacket(data[i], buffers);
    }
  } else if (typeof data === 'object') {
    for (var key in data) {
      data[key] = _reconstructPacket(data[key], buffers);
    }
  }

  return data;
}

/**
 * Asynchronously removes Blobs or Files from data via
 * FileReader's readAsArrayBuffer method. Used before encoding
 * data as msgpack. Calls callback with the blobless data.
 *
 * @param {Object} data
 * @param {Function} callback
 * @api private
 */

exports.removeBlobs = function(data, callback) {
  function _removeBlobs(obj, curKey, containingObject) {
    if (!obj) return obj;

    // convert any blob
    if ((withNativeBlob && obj instanceof Blob) ||
        (withNativeFile && obj instanceof File)) {
      pendingBlobs++;

      // async filereader
      var fileReader = new FileReader();
      fileReader.onload = function() { // this.result == arraybuffer
        if (containingObject) {
          containingObject[curKey] = this.result;
        }
        else {
          bloblessData = this.result;
        }

        // if nothing pending its callback time
        if(! --pendingBlobs) {
          callback(bloblessData);
        }
      };

      fileReader.readAsArrayBuffer(obj); // blob -> arraybuffer
    } else if (isArray(obj)) { // handle array
      for (var i = 0; i < obj.length; i++) {
        _removeBlobs(obj[i], i, obj);
      }
    } else if (typeof obj === 'object' && !isBuf(obj)) { // and object
      for (var key in obj) {
        _removeBlobs(obj[key], key, obj);
      }
    }
  }

  var pendingBlobs = 0;
  var bloblessData = data;
  _removeBlobs(bloblessData);
  if (!pendingBlobs) {
    callback(bloblessData);
  }
};


/***/ }),

/***/ "./node_modules/socket.io-client/node_modules/socket.io-parser/index.js":
/*!******************************************************************************!*\
  !*** ./node_modules/socket.io-client/node_modules/socket.io-parser/index.js ***!
  \******************************************************************************/
/*! no static exports found */
/*! ModuleConcatenation bailout: Module is not an ECMAScript module */
/***/ (function(module, exports, __webpack_require__) {


/**
 * Module dependencies.
 */

var debug = __webpack_require__(/*! debug */ "./node_modules/socket.io-client/node_modules/debug/src/browser.js")('socket.io-parser');
var Emitter = __webpack_require__(/*! component-emitter */ "./node_modules/component-emitter/index.js");
var binary = __webpack_require__(/*! ./binary */ "./node_modules/socket.io-client/node_modules/socket.io-parser/binary.js");
var isArray = __webpack_require__(/*! isarray */ "./node_modules/socket.io-client/node_modules/isarray/index.js");
var isBuf = __webpack_require__(/*! ./is-buffer */ "./node_modules/socket.io-client/node_modules/socket.io-parser/is-buffer.js");

/**
 * Protocol version.
 *
 * @api public
 */

exports.protocol = 4;

/**
 * Packet types.
 *
 * @api public
 */

exports.types = [
  'CONNECT',
  'DISCONNECT',
  'EVENT',
  'ACK',
  'ERROR',
  'BINARY_EVENT',
  'BINARY_ACK'
];

/**
 * Packet type `connect`.
 *
 * @api public
 */

exports.CONNECT = 0;

/**
 * Packet type `disconnect`.
 *
 * @api public
 */

exports.DISCONNECT = 1;

/**
 * Packet type `event`.
 *
 * @api public
 */

exports.EVENT = 2;

/**
 * Packet type `ack`.
 *
 * @api public
 */

exports.ACK = 3;

/**
 * Packet type `error`.
 *
 * @api public
 */

exports.ERROR = 4;

/**
 * Packet type 'binary event'
 *
 * @api public
 */

exports.BINARY_EVENT = 5;

/**
 * Packet type `binary ack`. For acks with binary arguments.
 *
 * @api public
 */

exports.BINARY_ACK = 6;

/**
 * Encoder constructor.
 *
 * @api public
 */

exports.Encoder = Encoder;

/**
 * Decoder constructor.
 *
 * @api public
 */

exports.Decoder = Decoder;

/**
 * A socket.io Encoder instance
 *
 * @api public
 */

function Encoder() {}

var ERROR_PACKET = exports.ERROR + '"encode error"';

/**
 * Encode a packet as a single string if non-binary, or as a
 * buffer sequence, depending on packet type.
 *
 * @param {Object} obj - packet object
 * @param {Function} callback - function to handle encodings (likely engine.write)
 * @return Calls callback with Array of encodings
 * @api public
 */

Encoder.prototype.encode = function(obj, callback){
  debug('encoding packet %j', obj);

  if (exports.BINARY_EVENT === obj.type || exports.BINARY_ACK === obj.type) {
    encodeAsBinary(obj, callback);
  } else {
    var encoding = encodeAsString(obj);
    callback([encoding]);
  }
};

/**
 * Encode packet as string.
 *
 * @param {Object} packet
 * @return {String} encoded
 * @api private
 */

function encodeAsString(obj) {

  // first is type
  var str = '' + obj.type;

  // attachments if we have them
  if (exports.BINARY_EVENT === obj.type || exports.BINARY_ACK === obj.type) {
    str += obj.attachments + '-';
  }

  // if we have a namespace other than `/`
  // we append it followed by a comma `,`
  if (obj.nsp && '/' !== obj.nsp) {
    str += obj.nsp + ',';
  }

  // immediately followed by the id
  if (null != obj.id) {
    str += obj.id;
  }

  // json data
  if (null != obj.data) {
    var payload = tryStringify(obj.data);
    if (payload !== false) {
      str += payload;
    } else {
      return ERROR_PACKET;
    }
  }

  debug('encoded %j as %s', obj, str);
  return str;
}

function tryStringify(str) {
  try {
    return JSON.stringify(str);
  } catch(e){
    return false;
  }
}

/**
 * Encode packet as 'buffer sequence' by removing blobs, and
 * deconstructing packet into object with placeholders and
 * a list of buffers.
 *
 * @param {Object} packet
 * @return {Buffer} encoded
 * @api private
 */

function encodeAsBinary(obj, callback) {

  function writeEncoding(bloblessData) {
    var deconstruction = binary.deconstructPacket(bloblessData);
    var pack = encodeAsString(deconstruction.packet);
    var buffers = deconstruction.buffers;

    buffers.unshift(pack); // add packet info to beginning of data list
    callback(buffers); // write all the buffers
  }

  binary.removeBlobs(obj, writeEncoding);
}

/**
 * A socket.io Decoder instance
 *
 * @return {Object} decoder
 * @api public
 */

function Decoder() {
  this.reconstructor = null;
}

/**
 * Mix in `Emitter` with Decoder.
 */

Emitter(Decoder.prototype);

/**
 * Decodes an encoded packet string into packet JSON.
 *
 * @param {String} obj - encoded packet
 * @return {Object} packet
 * @api public
 */

Decoder.prototype.add = function(obj) {
  var packet;
  if (typeof obj === 'string') {
    packet = decodeString(obj);
    if (exports.BINARY_EVENT === packet.type || exports.BINARY_ACK === packet.type) { // binary packet's json
      this.reconstructor = new BinaryReconstructor(packet);

      // no attachments, labeled binary but no binary data to follow
      if (this.reconstructor.reconPack.attachments === 0) {
        this.emit('decoded', packet);
      }
    } else { // non-binary full packet
      this.emit('decoded', packet);
    }
  } else if (isBuf(obj) || obj.base64) { // raw binary data
    if (!this.reconstructor) {
      throw new Error('got binary data when not reconstructing a packet');
    } else {
      packet = this.reconstructor.takeBinaryData(obj);
      if (packet) { // received final buffer
        this.reconstructor = null;
        this.emit('decoded', packet);
      }
    }
  } else {
    throw new Error('Unknown type: ' + obj);
  }
};

/**
 * Decode a packet String (JSON data)
 *
 * @param {String} str
 * @return {Object} packet
 * @api private
 */

function decodeString(str) {
  var i = 0;
  // look up type
  var p = {
    type: Number(str.charAt(0))
  };

  if (null == exports.types[p.type]) {
    return error('unknown packet type ' + p.type);
  }

  // look up attachments if type binary
  if (exports.BINARY_EVENT === p.type || exports.BINARY_ACK === p.type) {
    var buf = '';
    while (str.charAt(++i) !== '-') {
      buf += str.charAt(i);
      if (i == str.length) break;
    }
    if (buf != Number(buf) || str.charAt(i) !== '-') {
      throw new Error('Illegal attachments');
    }
    p.attachments = Number(buf);
  }

  // look up namespace (if any)
  if ('/' === str.charAt(i + 1)) {
    p.nsp = '';
    while (++i) {
      var c = str.charAt(i);
      if (',' === c) break;
      p.nsp += c;
      if (i === str.length) break;
    }
  } else {
    p.nsp = '/';
  }

  // look up id
  var next = str.charAt(i + 1);
  if ('' !== next && Number(next) == next) {
    p.id = '';
    while (++i) {
      var c = str.charAt(i);
      if (null == c || Number(c) != c) {
        --i;
        break;
      }
      p.id += str.charAt(i);
      if (i === str.length) break;
    }
    p.id = Number(p.id);
  }

  // look up json data
  if (str.charAt(++i)) {
    var payload = tryParse(str.substr(i));
    var isPayloadValid = payload !== false && (p.type === exports.ERROR || isArray(payload));
    if (isPayloadValid) {
      p.data = payload;
    } else {
      return error('invalid payload');
    }
  }

  debug('decoded %s as %j', str, p);
  return p;
}

function tryParse(str) {
  try {
    return JSON.parse(str);
  } catch(e){
    return false;
  }
}

/**
 * Deallocates a parser's resources
 *
 * @api public
 */

Decoder.prototype.destroy = function() {
  if (this.reconstructor) {
    this.reconstructor.finishedReconstruction();
  }
};

/**
 * A manager of a binary event's 'buffer sequence'. Should
 * be constructed whenever a packet of type BINARY_EVENT is
 * decoded.
 *
 * @param {Object} packet
 * @return {BinaryReconstructor} initialized reconstructor
 * @api private
 */

function BinaryReconstructor(packet) {
  this.reconPack = packet;
  this.buffers = [];
}

/**
 * Method to be called when binary data received from connection
 * after a BINARY_EVENT packet.
 *
 * @param {Buffer | ArrayBuffer} binData - the raw binary data received
 * @return {null | Object} returns null if more binary data is expected or
 *   a reconstructed packet object if all buffers have been received.
 * @api private
 */

BinaryReconstructor.prototype.takeBinaryData = function(binData) {
  this.buffers.push(binData);
  if (this.buffers.length === this.reconPack.attachments) { // done with buffer list
    var packet = binary.reconstructPacket(this.reconPack, this.buffers);
    this.finishedReconstruction();
    return packet;
  }
  return null;
};

/**
 * Cleans up binary packet reconstruction variables.
 *
 * @api private
 */

BinaryReconstructor.prototype.finishedReconstruction = function() {
  this.reconPack = null;
  this.buffers = [];
};

function error(msg) {
  return {
    type: exports.ERROR,
    data: 'parser error: ' + msg
  };
}


/***/ }),

/***/ "./node_modules/socket.io-client/node_modules/socket.io-parser/is-buffer.js":
/*!**********************************************************************************!*\
  !*** ./node_modules/socket.io-client/node_modules/socket.io-parser/is-buffer.js ***!
  \**********************************************************************************/
/*! no static exports found */
/*! ModuleConcatenation bailout: Module is not an ECMAScript module */
/***/ (function(module, exports, __webpack_require__) {

/* WEBPACK VAR INJECTION */(function(Buffer) {
module.exports = isBuf;

var withNativeBuffer = typeof Buffer === 'function' && typeof Buffer.isBuffer === 'function';
var withNativeArrayBuffer = typeof ArrayBuffer === 'function';

var isView = function (obj) {
  return typeof ArrayBuffer.isView === 'function' ? ArrayBuffer.isView(obj) : (obj.buffer instanceof ArrayBuffer);
};

/**
 * Returns true if obj is a buffer or an arraybuffer.
 *
 * @api private
 */

function isBuf(obj) {
  return (withNativeBuffer && Buffer.isBuffer(obj)) ||
          (withNativeArrayBuffer && (obj instanceof ArrayBuffer || isView(obj)));
}

/* WEBPACK VAR INJECTION */}.call(this, __webpack_require__(/*! ./../../../node-libs-browser/node_modules/buffer/index.js */ "./node_modules/node-libs-browser/node_modules/buffer/index.js").Buffer))

/***/ }),

/***/ "./node_modules/strict-uri-encode/index.js":
/*!*************************************************!*\
  !*** ./node_modules/strict-uri-encode/index.js ***!
  \*************************************************/
/*! no static exports found */
/*! ModuleConcatenation bailout: Module is not an ECMAScript module */
/***/ (function(module, exports, __webpack_require__) {

"use strict";

module.exports = str => encodeURIComponent(str).replace(/[!'()*]/g, x => `%${x.charCodeAt(0).toString(16).toUpperCase()}`);


/***/ }),

/***/ "./node_modules/to-array/index.js":
/*!****************************************!*\
  !*** ./node_modules/to-array/index.js ***!
  \****************************************/
/*! no static exports found */
/*! ModuleConcatenation bailout: Module is not an ECMAScript module */
/***/ (function(module, exports) {

module.exports = toArray

function toArray(list, index) {
    var array = []

    index = index || 0

    for (var i = index || 0; i < list.length; i++) {
        array[i - index] = list[i]
    }

    return array
}


/***/ }),

/***/ "./node_modules/webpack/buildin/global.js":
/*!***********************************!*\
  !*** (webpack)/buildin/global.js ***!
  \***********************************/
/*! no static exports found */
/*! ModuleConcatenation bailout: Module is not an ECMAScript module */
/***/ (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;


/***/ }),

/***/ "./node_modules/webpack/buildin/module.js":
/*!***********************************!*\
  !*** (webpack)/buildin/module.js ***!
  \***********************************/
/*! no static exports found */
/*! ModuleConcatenation bailout: Module is not an ECMAScript module */
/***/ (function(module, exports) {

module.exports = function(module) {
	if (!module.webpackPolyfill) {
		module.deprecate = function() {};
		module.paths = [];
		// module.parent = undefined by default
		if (!module.children) module.children = [];
		Object.defineProperty(module, "loaded", {
			enumerable: true,
			get: function() {
				return module.l;
			}
		});
		Object.defineProperty(module, "id", {
			enumerable: true,
			get: function() {
				return module.i;
			}
		});
		module.webpackPolyfill = 1;
	}
	return module;
};


/***/ }),

/***/ "./node_modules/yeast/index.js":
/*!*************************************!*\
  !*** ./node_modules/yeast/index.js ***!
  \*************************************/
/*! no static exports found */
/*! ModuleConcatenation bailout: Module is not an ECMAScript module */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


var alphabet = '0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz-_'.split('')
  , length = 64
  , map = {}
  , seed = 0
  , i = 0
  , prev;

/**
 * Return a string representing the specified number.
 *
 * @param {Number} num The number to convert.
 * @returns {String} The string representation of the number.
 * @api public
 */
function encode(num) {
  var encoded = '';

  do {
    encoded = alphabet[num % length] + encoded;
    num = Math.floor(num / length);
  } while (num > 0);

  return encoded;
}

/**
 * Return the integer value specified by the given string.
 *
 * @param {String} str The string to convert.
 * @returns {Number} The integer value represented by the string.
 * @api public
 */
function decode(str) {
  var decoded = 0;

  for (i = 0; i < str.length; i++) {
    decoded = decoded * length + map[str.charAt(i)];
  }

  return decoded;
}

/**
 * Yeast: A tiny growing id generator.
 *
 * @returns {String} A unique id.
 * @api public
 */
function yeast() {
  var now = encode(+new Date());

  if (now !== prev) return seed = 0, prev = now;
  return now +'.'+ encode(seed++);
}

//
// Map each character to its index.
//
for (; i < length; i++) map[alphabet[i]] = i;

//
// Expose the `yeast`, `encode` and `decode` functions.
//
yeast.encode = encode;
yeast.decode = decode;
module.exports = yeast;


/***/ }),

/***/ "./package.json":
/*!**********************!*\
  !*** ./package.json ***!
  \**********************/
/*! exports provided: name, version, description, main, module, scripts, repository, files, author, license, devDependencies, dependencies, default */
/*! ModuleConcatenation bailout: Module is not an ECMAScript module */
/***/ (function(module) {

module.exports = {"name":"skyway-js","version":"1.4.0","description":"The official JavaScript SDK for SkyWay","main":"dist/skyway.js","module":"src/peer.js","scripts":{"test":"karma start ./karma.conf.js","clean":"del ./dist","lint":"eslint .","build":"NODE_ENV=production webpack","dev":"webpack -w"},"repository":{"type":"git","url":"git+https://github.com/skyway/skyway-js-sdk"},"files":["dist/skyway.js","LICENSE","CHANGELOG.md","README.md"],"author":"NTT Communications Corp.","license":"MIT","devDependencies":{"babel-loader":"^7.1.4","babel-plugin-espower":"^2.4.0","babel-plugin-istanbul":"^4.1.6","babel-preset-es2015":"^6.24.1","del-cli":"^1.1.0","eslint":"^5.0.0","eslint-config-prettier":"^2.9.0","eslint-plugin-prettier":"^2.4.0","inject-loader":"^4.0.1","karma":"^2.0.0","karma-chrome-launcher":"^2.2.0","karma-coverage":"^1.1.2","karma-mocha":"^1.3.0","karma-mocha-reporter":"^2.2.5","karma-sourcemap-loader":"^0.3.7","karma-webpack":"^3.0.0","mocha":"^5.2.0","power-assert":"^1.4.4","prettier":"^1.9.2","sinon":"^6.0.1","webpack":"^4.12.1","webpack-cli":"^3.0.8"},"dependencies":{"detect-browser":"^4.2.0","enum":"git+https://github.com/eastandwest/enum.git#react-native","events":"^3.0.0","js-binarypack":"0.0.9","object-sizeof":"^1.3.0","query-string":"^6.4.0","sdp-interop":"^0.1.13","sdp-transform":"^2.7.0","socket.io-client":"^2.2.0"}};

/***/ }),

/***/ "./src/peer.js":
/*!**********************************!*\
  !*** ./src/peer.js + 12 modules ***!
  \**********************************/
/*! exports provided: default */
/*! ModuleConcatenation bailout: Cannot concat with ./node_modules/detect-browser/index.js (<- Module is not an ECMAScript module) */
/*! ModuleConcatenation bailout: Cannot concat with ./node_modules/enum/index.js (<- Module is not an ECMAScript module) */
/*! ModuleConcatenation bailout: Cannot concat with ./node_modules/js-binarypack/lib/binarypack.js (<- Module is not an ECMAScript module) */
/*! ModuleConcatenation bailout: Cannot concat with ./node_modules/node-libs-browser/node_modules/events/events.js (<- Module is not an ECMAScript module) */
/*! ModuleConcatenation bailout: Cannot concat with ./node_modules/object-sizeof/index.js (<- Module is not an ECMAScript module) */
/*! ModuleConcatenation bailout: Cannot concat with ./node_modules/query-string/index.js (<- Module is not an ECMAScript module) */
/*! ModuleConcatenation bailout: Cannot concat with ./node_modules/sdp-interop/lib/index.js (<- Module is not an ECMAScript module) */
/*! ModuleConcatenation bailout: Cannot concat with ./node_modules/sdp-transform/lib/index.js (<- Module is not an ECMAScript module) */
/*! ModuleConcatenation bailout: Cannot concat with ./node_modules/socket.io-client/lib/index.js (<- Module is not an ECMAScript module) */
/*! ModuleConcatenation bailout: Cannot concat with ./package.json (<- Module is not an ECMAScript module) */
/***/ (function(module, __webpack_exports__, __webpack_require__) {

"use strict";

// EXTERNAL MODULE: ./node_modules/node-libs-browser/node_modules/events/events.js
var events = __webpack_require__("./node_modules/node-libs-browser/node_modules/events/events.js");
var events_default = /*#__PURE__*/__webpack_require__.n(events);

// EXTERNAL MODULE: ./node_modules/enum/index.js
var node_modules_enum = __webpack_require__("./node_modules/enum/index.js");
var enum_default = /*#__PURE__*/__webpack_require__.n(node_modules_enum);

// EXTERNAL MODULE: ./node_modules/socket.io-client/lib/index.js
var lib = __webpack_require__("./node_modules/socket.io-client/lib/index.js");
var lib_default = /*#__PURE__*/__webpack_require__.n(lib);

// EXTERNAL MODULE: ./node_modules/query-string/index.js
var query_string = __webpack_require__("./node_modules/query-string/index.js");
var query_string_default = /*#__PURE__*/__webpack_require__.n(query_string);

// CONCATENATED MODULE: ./src/shared/config.js


const DISPATCHER_HOST = 'dispatcher.webrtc.ecl.ntt.com';
const DISPATCHER_PORT = 443;
const DISPATCHER_SECURE = true;
const DISPATCHER_TIMEOUT = 10000;

const TURN_HOST = 'turn.webrtc.ecl.ntt.com';
const TURN_PORT = 443;

const MESSAGE_TYPES = {
  CLIENT: new enum_default.a([
    'SEND_OFFER',
    'SEND_ANSWER',
    'SEND_CANDIDATE',
    'SEND_LEAVE',
    'ROOM_JOIN',
    'ROOM_LEAVE',
    'ROOM_GET_LOGS',
    'ROOM_GET_USERS',
    'ROOM_SEND_DATA',
    'SFU_GET_OFFER',
    'SFU_ANSWER',
    'SFU_CANDIDATE',
    'PING',
    'UPDATE_CREDENTIAL',
    'SEND_FORCE_CLOSE',
  ]),
  SERVER: new enum_default.a([
    'OPEN',
    'ERROR',
    'OFFER',
    'ANSWER',
    'CANDIDATE',
    'LEAVE',
    'AUTH_EXPIRES_IN',
    'ROOM_LOGS',
    'ROOM_USERS',
    'ROOM_DATA',
    'ROOM_USER_JOIN',
    'ROOM_USER_LEAVE',
    'SFU_OFFER',
    'FORCE_CLOSE',
  ]),
};

// Current recommended maximum chunksize is 16KB (DataChannel spec)
// https://tools.ietf.org/html/draft-ietf-rtcweb-data-channel-13
// The actual chunk size is adjusted in dataChannel to accomodate metaData
const maxChunkSize = 16300;

// Number of reconnection attempts to the same server before giving up
const reconnectionAttempts = 2;

// Number of times to try changing servers before giving up
const numberServersToTry = 3;

// Send loop interval in milliseconds
const sendInterval = 1;

// Ping interval in milliseconds
const pingInterval = 25000;

const defaultConfig = {
  iceServers: [
    {
      urls: 'stun:stun.webrtc.ecl.ntt.com:3478',
      url: 'stun:stun.webrtc.ecl.ntt.com:3478',
    },
  ],
  iceTransportPolicy: 'all',
};

/* harmony default export */ var config = ({
  DISPATCHER_HOST,
  DISPATCHER_PORT,
  DISPATCHER_SECURE,
  DISPATCHER_TIMEOUT,
  TURN_HOST,
  TURN_PORT,
  MESSAGE_TYPES,
  maxChunkSize,
  reconnectionAttempts,
  numberServersToTry,
  sendInterval,
  pingInterval,
  defaultConfig,
});

// CONCATENATED MODULE: ./src/shared/logger.js


const LOG_PREFIX = 'SkyWay: ';
const LogLevel = new enum_default.a({
  NONE: 0,
  ERROR: 1,
  WARN: 2,
  FULL: 3,
});

/**
 * Class for logging
 * This class exports only one instance(a.k.a. Singleton)
 */
class Logger {
  /**
   * Create a Logger instance.
   *
   */
  constructor() {
    this._logLevel = LogLevel.NONE.value;
    this.LOG_LEVELS = LogLevel;
  }

  /**
   * Set the level of log.
   * @param {number} [level=0] The log level. 0: NONE, 1: ERROR, 2: WARN, 3:FULL.
   */
  setLogLevel(level) {
    if (level.value) {
      level = level.value;
    }

    const debugLevel = parseInt(level, 10);

    switch (debugLevel) {
      case 0:
        this._logLevel = LogLevel.NONE.value;
        break;
      case 1:
        this._logLevel = LogLevel.ERROR.value;
        break;
      case 2:
        this._logLevel = LogLevel.WARN.value;
        break;
      case 3:
        this._logLevel = LogLevel.FULL.value;
        break;
      default:
        this._logLevel = LogLevel.NONE.value;
        break;
    }
  }

  /**
   * Output a warning message to the Web Console.
   * @param {...*} args - arguments to warn.
   */
  warn(...args) {
    if (this._logLevel >= LogLevel.WARN.value) {
      console.warn(LOG_PREFIX, ...args);
    }
  }

  /**
   * Output an error message to the Web Console.
   * @param {...*} args - arguments to error.
   */
  error(...args) {
    if (this._logLevel >= LogLevel.ERROR.value) {
      console.error(LOG_PREFIX, ...args);
    }
  }

  /**
   * Output a log message to the Web Console.
   * @param {...*} args - arguments to log.
   */
  log(...args) {
    if (this._logLevel >= LogLevel.FULL.value) {
      console.log(LOG_PREFIX, ...args);
    }
  }
}

/* harmony default export */ var logger = (new Logger());

// EXTERNAL MODULE: ./package.json
var package_0 = __webpack_require__("./package.json");

// CONCATENATED MODULE: ./src/peer/socket.js









/**
 * Class to handle WS/HTTP communication with the signalling server
 * @extends EventEmitter
 */
class socket_Socket extends events_default.a {
  /**
   * Creates an instance of Socket.
   * @param {string} key - The apiKey to connect using.
   * @param {Object} options - Socket connection options.
   * @param {boolean} options.secure - True if signalling server supports HTTPS/WSS.
   * @param {string} options.host - The signalling server host.
   * @param {number | string} options.port - The port the signalling server is listening to.
   * @param {boolean} options.dispatcherSecure - True if dispatcher server supports HTTPS/WSS.
   * @param {string} options.dispatcherHost - The signalling server host.
   * @param {number | string} options.dispatcherPort - The port the signalling server is listening to.
   */
  constructor(key, options) {
    super();

    this._isOpen = false;
    this._isPeerIdSet = false;
    this._queue = [];

    this._io = null;
    this._key = key;
    this._reconnectAttempts = 0;

    if (options.host && options.port) {
      const httpProtocol = options.secure ? 'https://' : 'http://';
      this.signalingServerUrl = `${httpProtocol}${options.host}:${
        options.port
      }`;
    } else {
      const dispatcherHost = options.dispatcherHost || config.DISPATCHER_HOST;
      const dispatcherPort = options.dispatcherPort || config.DISPATCHER_PORT;
      const dispatcherSecure =
        options.dispatcherSecure || config.DISPATCHER_SECURE;

      const httpProtocol = dispatcherSecure ? 'https://' : 'http://';
      this._dispatcherUrl = `${httpProtocol}${dispatcherHost}:${dispatcherPort}/signaling`;
    }
  }

  /**
   * Whether the socket is connecting to the signalling server or not.
   * @type {boolean}
   */
  get isOpen() {
    return Boolean(this._io && this._io.connected && this._isOpen);
  }

  /**
   * Connect to the signalling server.
   * @param {string} id - Unique peerId to identify the client.
   * @param {string} token - Token to identify the session.
   * @param {object} credential - The credential used to authenticate peer.
   * @param {number} [credential.timestamp] - Current UNIX timestamp.
   + @param {number} [credential.ttl] - Time to live; The credential expires at timestamp + ttl.
   + @param {string} [credential.authToken] - Credential token calculated with HMAC.
   * @return {Promise<void>} Promise that resolves when starting is done.
   * @fires Socket#error
   */
  async start(id, token, credential) {
    let query =
      `apiKey=${this._key}&token=${token}` +
      `&platform=javascript&sdk_version=${package_0["version"]}`;

    if (id) {
      query += `&peerId=${id}`;
      this._isPeerIdSet = true;
    }

    if (credential) {
      const encodedCredentialStr = encodeURIComponent(
        JSON.stringify(credential)
      );
      query += `&credential=${encodedCredentialStr}`;
    }

    if (this._dispatcherUrl) {
      let serverInfo;
      try {
        serverInfo = await this._getSignalingServer();
      } catch (err) {
        this.emit('error', err);
        return;
      }
      const httpProtocol = serverInfo.secure ? 'https://' : 'http://';
      this.signalingServerUrl = `${httpProtocol}${serverInfo.host}:${
        serverInfo.port
      }`;
    }

    this._io = lib_default()(this.signalingServerUrl, {
      'force new connection': true,
      query: query,
      reconnectionAttempts: config.reconnectionAttempts,
    });

    this._io.on('reconnect_failed', () => {
      this._stopPings();
      this._connectToNewServer();
    });

    this._io.on('error', e => {
      logger.error(e);
    });

    this._setupMessageHandlers();
  }

  /**
   * Connect to "new" signaling server. Attempts up to 10 times before giving up and emitting an error on the socket.
   * @param {number} [numAttempts=0] - Current number of attempts.
   * @return {Promise<void>} A promise that resolves with new connection has done.
   * @private
   */
  async _connectToNewServer(numAttempts = 0) {
    // max number of attempts to get a new server from the dispatcher.
    const maxNumberOfAttempts = 10;
    if (
      numAttempts >= maxNumberOfAttempts ||
      this._reconnectAttempts >= config.numberServersToTry
    ) {
      this.emit('error', 'Could not connect to server.');
      return;
    }

    // Keep trying until we connect to a new server because consul can take some time to remove from the active list.
    let serverInfo;
    try {
      serverInfo = await this._getSignalingServer();
    } catch (err) {
      this.emit('error', err);
      return;
    }

    if (this.signalingServerUrl.indexOf(serverInfo.host) === -1) {
      const httpProtocol = serverInfo.secure ? 'https://' : 'http://';
      this.signalingServerUrl = `${httpProtocol}${serverInfo.host}:${
        serverInfo.port
      }`;

      this._io.io.uri = this.signalingServerUrl;
      this._io.connect();
      this._reconnectAttempts++;
    } else {
      this._connectToNewServer(++numAttempts);
    }
  }

  /**
   * Return object including signaling server info.
   * @return {Promise<Object>} A promise that resolves with signaling server info
   and rejects if there's no response or status code isn't 200.
   */
  _getSignalingServer() {
    return new Promise((resolve, reject) => {
      const http = new XMLHttpRequest();

      http.timeout = config.DISPATCHER_TIMEOUT;
      http.open('GET', this._dispatcherUrl, true);

      /* istanbul ignore next */
      http.onerror = () => {
        reject(new Error('There was a problem with the dispatcher.'));
      };

      http.onabort = () => {
        reject(new Error('The request was aborted.'));
      };

      http.ontimeout = () => {
        reject(new Error('The request for the dispather timed out.'));
      };

      http.onreadystatechange = () => {
        if (http.readyState !== 4) {
          return;
        }

        // maybe aborted or something
        if (http.status === 0) {
          reject(new Error('There was a problem with the dispatcher.'));
          return;
        }

        let res = null;
        try {
          res = JSON.parse(http.responseText);
        } catch (err) {
          reject(
            new Error(
              'The dispatcher server returned an invalid JSON response.'
            )
          );
          return;
        }

        if (http.status === 200) {
          if (res && res.domain) {
            resolve({ host: res.domain, port: 443, secure: true });
            return;
          }
        }

        if (res.error && res.error.message) {
          const message = res.error.message;
          reject(new Error(message));
        } else {
          reject(new Error('There was a problem with the dispatcher.'));
        }
      };

      http.send(null);
    });
  }

  /**
   * Send a message to the signalling server. Queue the messages if not connected yet.
   * @param {string} type - The signalling message type. Message types are defined in config.MESSAGE_TYPES.
   * @param {string | object} message - The message to send to the server.
   */
  send(type, message) {
    if (!type) {
      this._io.emit('error', 'Invalid message');
      return;
    }

    // If we are not connected yet, queue the message
    if (!this.isOpen) {
      this._queue.push({ type: type, message: message });
      return;
    }

    if (this._io.connected === true) {
      this._io.emit(type, message);
    }
  }

  /**
   * Disconnect from the signalling server.
   */
  close() {
    if (this.isOpen) {
      this._stopPings();
      this._io.disconnect();
      this._isOpen = false;
    }
  }

  /**
   * Reconnect to the signaling server.
   */
  reconnect() {
    this._io.connect();
  }

  /**
   * Update Credential by sending the new credential to the signaling server.
   * Also set the new one to the Socket.io.opts's query string for reconnection.
   * @param {object} newCredential - The new credential generated by user.
   * @param {number} [newCredential.timestamp] - Current UNIX timestamp.
   + @param {number} [newCredential.ttl] - Time to live; The credential expires at timestamp + ttl.
   + @param {string} [newCredential.authToken] - Credential token calculated with HMAC.
   */
  updateCredential(newCredential) {
    // Parse the current queryString and replace the new credential with old one
    const parseQuery = query_string_default.a.parse(this._io.io.opts.query);
    if (parseQuery.credential) {
      parseQuery.credential = encodeURIComponent(JSON.stringify(newCredential));
    } else {
      // For future development; here we can tell the the developer
      // which connection(p2p/turn/sfu) should be authenticated.
      logger.warn("Adding a credential when one wasn't specified before.");
    }
    this._io.io.opts.query = query_string_default.a.stringify(parseQuery);

    this.send(config.MESSAGE_TYPES.CLIENT.UPDATE_CREDENTIAL.key, newCredential);
  }

  /**
   * Set up the signalling message handlers.
   * @private
   * @fires Socket#OPEN
   * @fires Socket#OFFER
   * @fires Socket#ANSWER
   * @fires Socket#CANDIDATE
   * @fires Socket#LEAVE
   * @fires Socket#AUTH_EXPIRES_IN
   * @fires Socket#ROOM_OFFER
   * @fires Socket#ROOM_USER_JOIN
   * @fires Socket#ROOM_USER_LEAVE
   * @fires Socket#ROOM_DATA
   * @fires Socket#FORCE_CLOSE
   */
  _setupMessageHandlers() {
    config.MESSAGE_TYPES.SERVER.enums.forEach(type => {
      if (type.key === config.MESSAGE_TYPES.SERVER.OPEN.key) {
        this._io.on(type.key, openMessage => {
          if (!openMessage || !openMessage.peerId) {
            return;
          }
          if (!this._isPeerIdSet) {
            // set peerId for when reconnecting to the server
            this._io.io.opts.query += `&peerId=${openMessage.peerId}`;
            this._isPeerIdSet = true;
          }
          this._reconnectAttempts = 0;

          this._startPings();
          this._sendQueuedMessages();

          if (!this._isOpen) {
            this._isOpen = true;

            // To inform the peer that the socket successfully connected
            this.emit(type.key, openMessage);
          }
        });
      } else {
        this._io.on(type.key, message => {
          this.emit(type.key, message);
        });
      }
    });
  }

  /**
   * Send messages that were queued when the client wasn't connected to the signalling server yet.
   * @private
   */
  _sendQueuedMessages() {
    for (const data of this._queue) {
      this.send(data.type, data.message);
    }
    this._queue = [];
  }

  /**
   * Start sending ping messages if they aren't already
   * @private
   */
  _startPings() {
    if (!this._pingIntervalId) {
      this._pingIntervalId = setInterval(() => {
        this.send(config.MESSAGE_TYPES.CLIENT.PING.key);
      }, config.pingInterval);
    }
  }

  /**
   * Stop sending ping messages
   * @private
   */
  _stopPings() {
    clearInterval(this._pingIntervalId);
    this._pingIntervalId = undefined;
  }

  /**
   * Error occurred.
   *
   * @event Connection#error
   * @type {Error}
   */

  /**
   * Socket opened.
   *
   * @event Socket#OPEN
   * @type {object}
   * @property {string} peerId - The peerId of the client.
   * @property {string} [turnCredential] - The turn credentials for this client.
   */

  /**
   * Signalling server error.
   *
   * @event Socket#ERROR
   * @type {string}
   */

  /**
   * ICE candidate received from peer.
   *
   * @event Socket#CANDIDATE
   * @type {object}
   * @property {RTCIceCandidate} candidate - The ice candidate.
   * @property {string} src - Sender peerId.
   * @property {string} dst - Recipient peerId.
   * @property {string} connectionId - The connection id.
   * @property {string} connectionType - The connection type.
   */

  /**
   * Offer received from peer.
   *
   * @event Socket#OFFER
   * @type {object}
   * @property {RTCSessionDescription} offer - The remote peer's offer.
   * @property {string} src - Sender peerId.
   * @property {string} dst - Recipient peerId.
   * @property {string} connectionId - The connection id.
   * @property {string} connectionType - The connection type.
   * @property {object} metadata - Any extra data sent with the connection.
   */

  /**
   * Answer received from peer.
   *
   * @event Socket#ANSWER
   * @type {object}
   * @property {RTCSessionDescription} answer - The remote peer's answer.
   * @property {string} src - Sender peerId.
   * @property {string} dst - Recipient peerId.
   * @property {string} connectionId - The connection id.
   * @property {string} connectionType - The connection type.
   */

  /**
   * Peer has left.
   *
   * @event Socket#LEAVE
   * @type {string}
   */

  /**
   * Message sent to peer has failed.
   *
   * @event Socket#EXPIRE
   * @type {string}
   */

  /**
   * Room offer sdp received.
   *
   * @event Socket#ROOM_OFFER
   * @type {object}
   * @property {string} roomName - The name of the room the offer is for.
   * @property {RTCSessionDescription} offer - The offer object.
   */

  /**
   * User has joined the room.
   *
   * @event Socket#ROOM_USER_JOIN
   * @type {object}
   * @property {string} src - The peerId of the user who joined the room.
   * @property {string} roomName - The name of the room joined.
   */

  /**
   * User has left the room.
   *
   * @event Socket#ROOM_USER_LEAVE
   * @type {object}
   * @property {string} src - The peerId of the user who left the room.
   * @property {string} roomName - The name of the room left.
   */

  /**
   * Received a data message from a user in a room.
   *
   * @event Socket#ROOM_DATA
   * @type {object}
   * @property {string} src - The peerId of the user who sent the message.
   * @property {string} roomName - The name of the room left.
   * @property {*} data - The data that was sent.
   */

  /**
   * Remote Peer requested to close a connection.
   *
   * @event Socket#FORCE_CLOSE
   * @type {object}
   * @property {string} src - Sender peerId.
   * @property {string} dst - Recipient peerId.
   * @property {string} connectionId - The connection id.
   */
}

/* harmony default export */ var socket = (socket_Socket);

// EXTERNAL MODULE: ./node_modules/sdp-transform/lib/index.js
var sdp_transform_lib = __webpack_require__("./node_modules/sdp-transform/lib/index.js");
var sdp_transform_lib_default = /*#__PURE__*/__webpack_require__.n(sdp_transform_lib);

// EXTERNAL MODULE: ./node_modules/sdp-interop/lib/index.js
var sdp_interop_lib = __webpack_require__("./node_modules/sdp-interop/lib/index.js");

// CONCATENATED MODULE: ./src/shared/sdpUtil.js



/**
 * Class that contains utility functions for SDP munging.
 */
class sdpUtil_SdpUtil {
  /**
   * Convert unified plan SDP to Plan B SDP
   * @param {RTCSessionDescriptionInit} offer unified plan SDP
   * @return {RTCSessionDescription} Plan B SDP
   */
  unifiedToPlanB(offer) {
    const interop = new sdp_interop_lib["Interop"]();
    const oldSdp = interop.toPlanB(offer).sdp;

    // use a set to avoid duplicates
    const msids = new Set();
    // extract msids from the offer sdp
    const msidRegexp = /a=ssrc:\d+ msid:(\w+)/g;
    let matches;
    // loop while matches is truthy
    // double parentheses for explicit conditional assignment (lint)
    while ((matches = msidRegexp.exec(oldSdp))) {
      msids.add(matches[1]);
    }

    // replace msid-semantic line with planB version
    const newSdp = oldSdp.replace(
      'a=msid-semantic:WMS *',
      `a=msid-semantic:WMS ${Array.from(msids).join(' ')}`
    );

    return new RTCSessionDescription({
      type: 'offer',
      sdp: newSdp,
    });
  }

  /**
   * Add b=AS to m=video section and return the SDP.
   * @param {string} sdp - A SDP.
   * @param {number} bandwidth - video Bandwidth (kbps)
   * @return {string} A SDP which include b=AS in m=video section
   */
  addVideoBandwidth(sdp, bandwidth) {
    this._validateBandwidth(bandwidth);
    return this._addBandwidth(sdp, bandwidth, 'video');
  }

  /**
   * Add b=AS to m=audio section and return the SDP
   * @param {string} sdp - A SDP.
   * @param {number} bandwidth - audio Bandwidth (kbps)
   * @return {string} A SDP which include b=AS in m=audio section
   */
  addAudioBandwidth(sdp, bandwidth) {
    this._validateBandwidth(bandwidth);
    return this._addBandwidth(sdp, bandwidth, 'audio');
  }

  /**
   * Remove video codecs in SDP except argument's codec.
   * If the codec doesn't exist, throw error.
   * @param {string} sdp - A SDP.
   * @param {string} codec - Video codec name (e.g. H264)
   * @return {string} A SDP which contains the codecs except argument's codec
   */
  filterVideoCodec(sdp, codec) {
    return this._filterCodec(sdp, codec, 'video');
  }

  /**
   * Remove audio codecs in SDP except argument's codec.
   * If the codec doesn't exist, throw error.
   * @param {string} sdp - A SDP.
   * @param {string} codec - Audio codec name (e.g. PCMU)
   * @return {string} A SDP which contains the codecs except argument's codec
   */
  filterAudioCodec(sdp, codec) {
    return this._filterCodec(sdp, codec, 'audio');
  }

  /**
   * Our signaling server determines client's SDP semantics
   * by checking answer SDP includes `a=msid-semantic:WMS *` or NOT.
   *
   * Currenly, Firefox prints exact string,
   * but Chrome does not. even using `unified-plan`.
   * Therefore Chrome needs to pretend Firefox to join SFU rooms.
   *
   * At a glance, using `sdp-transform` is better choice to munge SDP,
   * but if you do so, it prints `a=msid-semantic: WMS *`.
   * The problem is the space before the word `WMS`,
   * our signaling server can not handle this as `unified-plan` SDP...
   *
   * @param {string} sdp - A SDP.
   * @return {string} A SDP which has `a=msid-semantic:WMS *`.
   */
  pretendUnifiedPlan(sdp) {
    const delimiter = '\r\n';
    return sdp
      .split(delimiter)
      .map(line => {
        return line.startsWith('a=msid-semantic')
          ? 'a=msid-semantic:WMS *'
          : line;
      })
      .join(delimiter);
  }

  /**
   * Remove codecs except the codec passed as argument and return the SDP
   *
   * @param {string} sdp - A SDP.
   * @param {string} codec - The codec name, case sensitive.
   * @param {string} mediaType - 'audio' or 'video'
   * @return {string} A SDP which contains the codecs except argument's codec
   * @private
   */
  _filterCodec(sdp, codec, mediaType) {
    if (codec === undefined) {
      throw new Error('codec is not passed');
    }

    const sdpObject = sdp_transform_lib_default.a.parse(sdp);

    sdpObject.media = sdpObject.media.map(media => {
      if (media.type === mediaType) {
        media.rtp = media.rtp.filter(rtp => {
          return rtp.codec === codec;
        });

        // Extract the payload number into Array, like [126, 97];
        // Note, there are cases the length of Array is more than 2.
        //   e.g. Firefox generates two 'H264' video codecs: 126, 97;
        //   e.g. Chrome generates three 'CN' audio codecs:  106, 105, 13;
        const payloadNumbers = media.rtp.reduce((prev, curr) => {
          return [...prev, curr.payload];
        }, []);

        // At this point, 0 means there's no codec, so let's throw Error.
        if (media.rtp.length === 0) {
          throw new Error(`${codec} does not exist`);
        }

        // fmtp is optional though most codecs have this parameter.
        if (media.fmtp) {
          media.fmtp = media.fmtp.filter(fmtp => {
            return payloadNumbers.includes(fmtp.payload);
          });
        }

        // rtcpFb is optional. Especially, m=audio doesn't have rtcpFb.
        if (media.rtcpFb) {
          media.rtcpFb = media.rtcpFb.filter(rtcpFb => {
            return payloadNumbers.includes(rtcpFb.payload);
          });
        }

        media.payloads = payloadNumbers.join(' ');
      }
      return media;
    });

    return sdp_transform_lib_default.a.write(sdpObject);
  }

  /**
   * Add b=AS to 'm=audio' or 'm=video' section and return the SDP
   *
   * @param {string} sdp - A SDP.
   * @param {number} bandwidth - bandidth of 'audio' or 'video'
   * @param {string} mediaType - 'audio' or 'video'
   * @return {string} A SDP which include b=AS in m=audio or m=video section
   * @private
   */
  _addBandwidth(sdp, bandwidth, mediaType) {
    const sdpObject = sdp_transform_lib_default.a.parse(sdp);
    sdpObject.media = sdpObject.media.map(media => {
      if (media.type === mediaType) {
        media.bandwidth = [
          {
            // Chrome supports only 'AS'
            type: 'AS',
            limit: bandwidth.toString(),
          },
          {
            // Firefox Supports only 'TIAS' from M49
            type: 'TIAS',
            limit: (bandwidth * 1000).toString(),
          },
        ];
      }
      return media;
    });
    return sdp_transform_lib_default.a.write(sdpObject);
  }

  /**
   * Check bandwidth is valid or not. If invalid, throw Error
   * @param {number} bandwidth - bandwidth of 'audio' or 'video'
   * @private
   */
  _validateBandwidth(bandwidth) {
    if (bandwidth === undefined) {
      throw new Error('bandwidth is not passed');
    }

    if (!/^\d+$/.test(bandwidth)) {
      throw new Error(`${bandwidth} is not a number`);
    }
  }
}

/* harmony default export */ var sdpUtil = (new sdpUtil_SdpUtil());

// EXTERNAL MODULE: ./node_modules/detect-browser/index.js
var detect_browser = __webpack_require__("./node_modules/detect-browser/index.js");

// CONCATENATED MODULE: ./src/shared/util.js


/**
 * Validate the Peer ID format.
 * @param {string} [id] - A Peer ID.
 * @return {boolean} True if the peerId format is valid. False if not.
 */
function validateId(id) {
  // Allow empty ids
  return !id || /^[A-Za-z0-9_-]+(?:[ _-][A-Za-z0-9]+)*$/.exec(id);
}

/**
 * Validate the API key.
 * @param {string} [key] A SkyWay API key.
 * @return {boolean} True if the API key format is valid. False if not.
 */
function validateKey(key) {
  // Allow empty keys
  return !key || /^[a-z0-9]{8}(-[a-z0-9]{4}){3}-[a-z0-9]{12}$/.exec(key);
}

/**
 * Return random ID.
 * @return {string} A text consisting of 16 chars.
 */
function randomId() {
  const keyLength = 16;
  // '36' means that we want to convert the number to a string using chars in
  // the range of '0-9a-z'. The concatenated 0's are for padding the key,
  // as Math.random() may produce a key shorter than 16 chars in length
  const randString = Math.random().toString(36) + '0000000000000000000';
  return randString.substr(2, keyLength);
}

/**
 * Generate random token.
 * @return {string} A token consisting of random alphabet and integer.
 */
function randomToken() {
  return Math.random()
    .toString(36)
    .substr(2);
}

/**
 * Combine the sliced ArrayBuffers.
 * @param {Array} buffers - An Array of ArrayBuffer.
 * @return {ArrayBuffer} The combined ArrayBuffer.
 */
function joinArrayBuffers(buffers) {
  const size = buffers.reduce((sum, buffer) => {
    return sum + buffer.byteLength;
  }, 0);
  const tmpArray = new Uint8Array(size);
  let currPos = 0;
  for (const buffer of buffers) {
    tmpArray.set(new Uint8Array(buffer), currPos);
    currPos += buffer.byteLength;
  }
  return tmpArray.buffer;
}

/**
 * Convert Blob to ArrayBuffer.
 * @param {Blob} blob - The Blob to be read as ArrayBuffer.
 * @param {Function} cb - Callback function that called after load event fired.
 */
function blobToArrayBuffer(blob, cb) {
  const fr = new FileReader();
  fr.onload = event => {
    cb(event.target.result);
  };
  fr.readAsArrayBuffer(blob);
}

/**
 * Whether the protocol is https or not.
 * @return {boolean} Whether the protocol is https or not.
 */
function isSecure() {
  return location.protocol === 'https:';
}

/**
 * Detect browser name and version.
 * @return {Object} Browser name and major, minor and patch versions. Object is empty if info can't be obtained.
 */
function detectBrowser() {
  const { name, version } = Object(detect_browser["detect"])();
  const [major, minor, patch] = version.split('.').map(i => parseInt(i));
  return {
    name,
    major,
    minor,
    patch,
  };
}

/**
 * Safari 12.1 may use plan-b sdp and also unified-plan sdp.
 * It depends on user settings.
 * See https://webkit.org/blog/8672/on-the-road-to-webrtc-1-0-including-vp8/
 *
 * @return {boolean} Browser is Safari 12.1 or later and enables unified-plan OR NOT
 */
function isUnifiedPlanSafari() {
  const { name, major, minor } = detectBrowser();

  if (
    (name === 'safari' || name === 'ios') &&
    (major >= 12 && minor >= 1) &&
    RTCRtpTransceiver.prototype.hasOwnProperty('currentDirection')
  ) {
    return true;
  }

  return false;
}

/* harmony default export */ var util = ({
  validateId,
  validateKey,
  randomId,
  randomToken,
  joinArrayBuffers,
  blobToArrayBuffer,
  isSecure,
  detectBrowser,
  isUnifiedPlanSafari,
});

// CONCATENATED MODULE: ./src/peer/negotiator.js







const NegotiatorEvents = new enum_default.a([
  'addStream',
  'removeStream',
  'dcCreated',
  'offerCreated',
  'answerCreated',
  'iceCandidate',
  'iceCandidatesComplete',
  'iceConnectionFailed',
  'negotiationNeeded',
  'error',
]);

/**
 * Class that manages RTCPeerConnection and SDP exchange.
 * @extends EventEmitter
 */
class negotiator_Negotiator extends events_default.a {
  /**
   * Create a negotiator
   * @param {string} name - Room name.
   */
  constructor() {
    super();
    this._offerQueue = [];
    this._isExpectingAnswer = false;
    this._replaceStreamCalled = false;
    this._isNegotiationAllowed = true;
    this.hasRemoteDescription = false;
  }

  /**
   * Class that manages RTCPeerConnection and SDP exchange.
   * @param {object} [options] - Optional arguments for starting connection.
   * @param {string} [options.type] - Type of connection. One of 'media' or 'data'.
   * @param {MediaStream} [options._stream] - The MediaStream to be sent to the remote peer.
   * @param {string} [options.label] - Label to easily identify the connection on either peer.
   * @param {Object} [options.dcInit] - Options passed to createDataChannel() as a RTCDataChannelInit.
   *                  See https://www.w3.org/TR/webrtc/#dom-rtcdatachannelinit
   * @param {boolean} [options.originator] - true means the peer is the originator of the connection.
   * @param {RTCSessionDescription} [options.offer]
   *        - The local description. If the peer is originator, handleOffer is called with it.
   * @param {object} [options.pcConfig] - A RTCConfiguration dictionary for the RTCPeerConnection.
   * @param {number} [options.videoBandwidth] - A max video bandwidth(kbps)
   * @param {number} [options.audioBandwidth] - A max audio bandwidth(kbps)
   * @param {string} [options.videoCodec] - A video codec like 'H264'
   * @param {string} [options.audioCodec] - A video codec like 'PCMU'
   * @param {boolean} [options.videoReceiveEnabled] - A flag to set video recvonly
   * @param {boolean} [options.audioReceiveEnabled] - A flag to set audio recvonly
   * @return {Promise<void>} Promise that resolves when starting is done.
   */
  async startConnection(options = {}) {
    this._pc = this._createPeerConnection(options.pcConfig);
    this._setupPCListeners();
    this.originator = options.originator;
    this._audioBandwidth = options.audioBandwidth;
    this._videoBandwidth = options.videoBandwidth;
    this._audioCodec = options.audioCodec;
    this._videoCodec = options.videoCodec;
    this._type = options.type;
    this._recvonlyState = this._getReceiveOnlyState(options);

    if (this._type === 'media') {
      if (options.stream) {
        options.stream.getTracks().forEach(track => {
          this._pc.addTrack(track, options.stream);
        });
      } else if (this.originator) {
        // This means the peer wants to create offer SDP with `recvonly`
        const offer = await this._makeOfferSdp();
        await this._setLocalDescription(offer);
      }
    }

    if (this.originator) {
      if (this._type === 'data') {
        const label = options.label || '';
        const dcInit = options.dcInit || {};
        const dc = this._pc.createDataChannel(label, dcInit);
        this.emit(negotiator_Negotiator.EVENTS.dcCreated.key, dc);
      }
    } else {
      await this.handleOffer(options.offer);
    }
  }

  /**
   * Replace the stream being sent with a new one.
   * Video and audio tracks are updated per track by using `{add|replace|remove}Track` methods.
   * We assume that there is at most 1 audio and at most 1 video in local stream.
   * @param {MediaStream} newStream - The stream to replace the old stream with.
   * @private
   */
  replaceStream(newStream) {
    // If negotiator is null
    // or replaceStream was called but `onnegotiationneeded` event has not finished yet.
    if (!this._pc) {
      return;
    }

    this._isNegotiationAllowed = true;

    const _this = this;
    const vTracks = newStream.getVideoTracks();
    const aTracks = newStream.getAudioTracks();

    const senders = this._pc.getSenders();
    const vSender = senders.find(
      sender => sender.track && sender.track.kind === 'video'
    );
    const aSender = senders.find(
      sender => sender.track && sender.track.kind === 'audio'
    );

    _updateSenderWithTrack(vSender, vTracks[0], newStream);
    _updateSenderWithTrack(aSender, aTracks[0], newStream);

    /**
     * Replace a track being sent with a new one.
     * @param {RTCRtpSender} sender - The sender which type is video or audio.
     * @param {MediaStreamTrack} track - The track of new stream.
     * @param {MediaStream} stream - The stream which contains the track.
     * @private
     */
    function _updateSenderWithTrack(sender, track, stream) {
      if (track === undefined && sender === undefined) {
        return;
      }
      // remove video or audio sender if not passed
      if (track === undefined) {
        _this._pc.removeTrack(sender);
        return;
      }
      // if passed, replace track or create sender
      if (sender === undefined) {
        _this._pc.addTrack(track, stream);
        return;
      }
      // if track was not replaced, do nothing
      if (sender.track.id === track.id) {
        return;
      }
      sender.replaceTrack(track);
    }
  }

  /**
   * Set remote description with remote Offer SDP, then create Answer SDP and emit it.
   * @param {object} [offerSdp] - An object containing Offer SDP.
   * @return {Promise<void>} Promise that resolves when handling offer is done.
   */
  async handleOffer(offerSdp) {
    // Avoid unnecessary processing by short circuiting the code if nothing has changed in the sdp.
    if (this._lastOffer && offerSdp && this._lastOffer.sdp === offerSdp.sdp) {
      return;
    }

    this._isNegotiationAllowed = true;

    if (!offerSdp) {
      offerSdp = this._lastOffer;
    }

    this._lastOffer = offerSdp;

    // Enqueue and skip while signalingState is wrong state.
    // (when room is SFU and there are multiple conns in a same time, it happens)
    if (this._pc.signalingState === 'have-remote-offer') {
      this._offerQueue.push(offerSdp);
      return;
    }

    await this._setRemoteDescription(offerSdp);
    const answer = await this._makeAnswerSdp().catch(err => logger.error(err));
    this.emit(negotiator_Negotiator.EVENTS.answerCreated.key, answer);
  }

  /**
   * Set remote description with Answer SDP.
   * @param {object} answerSdp - An object containing Answer SDP.
   */
  async handleAnswer(answerSdp) {
    this._isNegotiationAllowed = true;

    if (this._isExpectingAnswer) {
      await this._setRemoteDescription(answerSdp);
      this._isExpectingAnswer = false;
    } else if (this._pc.onnegotiationneeded) {
      // manually trigger negotiation
      this._pc.onnegotiationneeded();
    }
  }

  /**
   * Set ice candidate with Candidate SDP.
   * @param {object} candidate - An object containing Candidate SDP.
   * @return {Promise<void>} Promise that resolves when handling candidate is done.
   */
  async handleCandidate(candidate) {
    await this._pc
      .addIceCandidate(new RTCIceCandidate(candidate))
      .then(() => logger.log('Successfully added ICE candidate'))
      .catch(err => logger.error('Failed to add ICE candidate', err));
  }

  /**
   * Close a PeerConnection.
   */
  cleanup() {
    logger.log('Cleaning up PeerConnection');

    if (
      this._pc &&
      (this._pc.readyState !== 'closed' || this._pc.signalingState !== 'closed')
    ) {
      this._pc.close();
    }
    this._pc = null;
  }

  /**
   * Create new RTCPeerConnection.
   * @param {object} pcConfig - A RTCConfiguration dictionary for the RTCPeerConnection.
   * @return {RTCPeerConnection} An instance of RTCPeerConnection.
   * @private
   */
  _createPeerConnection(pcConfig = {}) {
    logger.log('Creating RTCPeerConnection');

    const browserInfo = util.detectBrowser();

    // If browser is Chrome and over 69, it has addTransceiver but does not work without unified-plan option.
    // SkyWay has not supported unified-plan.
    this._isAddTransceiverAvailable =
      typeof RTCPeerConnection.prototype.addTransceiver === 'function' &&
      browserInfo.name !== 'chrome';

    // Force plan-b for SFU, until we finish unified-plan support.
    pcConfig.sdpSemantics = 'plan-b';
    return new RTCPeerConnection(pcConfig);
  }

  /**
   * Set up event handlers of RTCPeerConnection events.
   * @private
   */
  _setupPCListeners() {
    const pc = this._pc;

    pc.ontrack = evt => {
      logger.log('Received remote media stream track');
      evt.streams.forEach(stream => {
        this.emit(negotiator_Negotiator.EVENTS.addStream.key, stream);
      });
    };

    pc.ondatachannel = evt => {
      logger.log('Received data channel');
      const dc = evt.channel;
      this.emit(negotiator_Negotiator.EVENTS.dcCreated.key, dc);
    };

    pc.onicecandidate = evt => {
      const candidate = evt.candidate;
      if (candidate) {
        logger.log('Generated ICE candidate for:', candidate);
        this.emit(negotiator_Negotiator.EVENTS.iceCandidate.key, candidate);
      } else {
        logger.log('ICE candidates gathering complete');

        this.emit(
          negotiator_Negotiator.EVENTS.iceCandidatesComplete.key,
          pc.localDescription
        );
      }
    };

    pc.oniceconnectionstatechange = () => {
      switch (pc.iceConnectionState) {
        case 'completed':
          logger.log('iceConnectionState is completed');
          // istanbul ignore next
          pc.onicecandidate = () => {};
          break;
        case 'disconnected':
          /**
           * Browsers(Chrome/Safari/Firefox) implement iceRestart with createOffer(),
           * but it seems buggy at 2017/08, so we don't use iceRestart to reconnect intensionally.
           * Ref: https://github.com/nttcom-webcore/ECLRTC-JS-SDK/pull/37
           */
          logger.log(
            'iceConnectionState is disconnected, trying reconnect by browser'
          );
          break;
        case 'failed':
          logger.log('iceConnectionState is failed, closing connection');
          this.emit(negotiator_Negotiator.EVENTS.iceConnectionFailed.key);
          break;
        default:
          logger.log(`iceConnectionState is ${pc.iceConnectionState}`);
          break;
      }
    };

    pc.onnegotiationneeded = async () => {
      logger.log('`negotiationneeded` triggered');

      // Don't make a new offer if it's not stable or if onnegotiationneeded is called consecutively.
      // Chrome 65+ called onnegotiationneeded once per addTrack so force it to run only once.
      if (pc.signalingState === 'stable' && this._isNegotiationAllowed) {
        this._isNegotiationAllowed = false;
        // Emit negotiationNeeded event in case additional handling is needed.
        if (this.originator) {
          const offer = await this._makeOfferSdp();
          this._setLocalDescription(offer);
          this.emit(negotiator_Negotiator.EVENTS.negotiationNeeded.key);
        } else if (this._replaceStreamCalled) {
          this.handleOffer();
        }

        this._replaceStreamCalled = false;
      }
    };

    pc.onremovestream = evt => {
      logger.log('`removestream` triggered');
      this.emit(negotiator_Negotiator.EVENTS.removeStream.key, evt.stream);
    };

    pc.onsignalingstatechange = () => {
      logger.log(`signalingState is ${pc.signalingState}`);

      // After signaling state is getting back to 'stable',
      // apply pended remote offer, which was stored when simultaneous multiple conns happened in SFU room,
      // Note that this code very rarely applies the old remote offer.
      // E.g. "Offer A -> Offer B" should be the right order but for some reason like NW unstablity,
      //      offerQueue might keep "Offer B" first and handle "Offer A" later.
      if (pc.signalingState === 'stable') {
        const offer = this._offerQueue.shift();
        if (offer) {
          this.handleOffer(offer);
        }
      }
    };
  }

  /**
   * Create Offer SDP.
   * @return {Promise<Object>} A promise that resolves with Offer SDP.
   * @private
   */
  async _makeOfferSdp() {
    let offer;

    try {
      // DataConnection
      if (this._type !== 'media') {
        offer = await this._pc.createOffer();
        // MediaConnection
      } else {
        if (this._isAddTransceiverAvailable) {
          this._recvonlyState.audio &&
            this._pc.addTransceiver('audio', { direction: 'recvonly' });
          this._recvonlyState.video &&
            this._pc.addTransceiver('video', { direction: 'recvonly' });
          offer = await this._pc.createOffer();
        } else {
          const offerOptions = {};
          // the offerToReceiveXXX options are defined in the specs as boolean but `undefined` acts differently from false
          this._recvonlyState.audio &&
            (offerOptions.offerToReceiveAudio = true);
          this._recvonlyState.video &&
            (offerOptions.offerToReceiveVideo = true);
          offer = await this._pc.createOffer(offerOptions);
        }
      }
    } catch (err) {
      err.type = 'webrtc';
      logger.error(err);
      this.emit(negotiator_Negotiator.EVENTS.error.key, err);

      logger.log('Failed to createOffer, ', err);
      throw err;
    }

    logger.log('Created offer.');

    if (this._audioBandwidth) {
      offer.sdp = sdpUtil.addAudioBandwidth(offer.sdp, this._audioBandwidth);
    }
    if (this._videoBandwidth) {
      offer.sdp = sdpUtil.addVideoBandwidth(offer.sdp, this._videoBandwidth);
    }
    if (this._audioCodec) {
      offer.sdp = sdpUtil.filterAudioCodec(offer.sdp, this._audioCodec);
    }
    if (this._videoCodec) {
      offer.sdp = sdpUtil.filterVideoCodec(offer.sdp, this._videoCodec);
    }

    return offer;
  }

  /**
   * Make Answer SDP and set it as local description.
   * @return {Promise<Object>} A promise that is resolved with answer when setting local SDP is completed.
   * @private
   */
  async _makeAnswerSdp() {
    let answer;
    try {
      answer = await this._pc.createAnswer();
    } catch (err) {
      err.type = 'webrtc';
      logger.error(err);
      this.emit(negotiator_Negotiator.EVENTS.error.key, err);

      logger.log('Failed to createAnswer, ', err);
      throw err;
    }

    logger.log('Created answer.');

    if (this._audioBandwidth) {
      answer.sdp = sdpUtil.addAudioBandwidth(answer.sdp, this._audioBandwidth);
    }
    if (this._videoBandwidth) {
      answer.sdp = sdpUtil.addVideoBandwidth(answer.sdp, this._videoBandwidth);
    }
    if (this._audioCodec) {
      answer.sdp = sdpUtil.filterAudioCodec(answer.sdp, this._audioCodec);
    }
    if (this._videoCodec) {
      answer.sdp = sdpUtil.filterVideoCodec(answer.sdp, this._videoCodec);
    }

    try {
      await this._pc.setLocalDescription(answer);
    } catch (err) {
      err.type = 'webrtc';
      logger.error(err);
      this.emit(negotiator_Negotiator.EVENTS.error.key, err);

      logger.log('Failed to setLocalDescription, ', err);
      throw err;
    }

    logger.log('Set localDescription: answer');
    logger.log(`Setting local description ${JSON.stringify(answer.sdp)}`);

    return answer;
  }

  /**
   * Set local description with Offer SDP and emit offerCreated event.
   * @param {RTCSessionDescription} offer - Offer SDP.
   * @return {Promise<void>} A promise that is resolved when setting local SDP is completed.
   * @private
   */
  async _setLocalDescription(offer) {
    logger.log(`Setting local description ${JSON.stringify(offer.sdp)}`);

    try {
      await this._pc.setLocalDescription(offer);
    } catch (err) {
      err.type = 'webrtc';
      logger.error(err);
      this.emit(negotiator_Negotiator.EVENTS.error.key, err);

      logger.log('Failed to setLocalDescription, ', err);
      throw err;
    }

    logger.log('Set localDescription: offer');
    this._isExpectingAnswer = true;
    this.emit(negotiator_Negotiator.EVENTS.offerCreated.key, offer);
  }

  /**
   * Set remote SDP.
   * @param {object} sdp - An object containing remote SDP.
   * @return {Promise<void>} A promise that is resolved when setting remote SDP is completed.
   * @private
   */
  async _setRemoteDescription(sdp) {
    logger.log(`Setting remote description ${JSON.stringify(sdp)}`);

    try {
      await this._pc.setRemoteDescription(new RTCSessionDescription(sdp));
      this.hasRemoteDescription = true;
    } catch (err) {
      err.type = 'webrtc';
      logger.error(err);
      this.emit(negotiator_Negotiator.EVENTS.error.key, err);

      logger.log('Failed to setRemoteDescription: ', err);
      throw err;
    }

    logger.log('Set remoteDescription:', sdp.type);
  }

  /**
   * Get map object describes which kinds of tracks should be marked as recvonly
   * @param {Object} options - Options of peer.call()
   * @return {Object} Map object which streamTrack will be recvonly or not
   */
  _getReceiveOnlyState(options = {}) {
    const state = {
      audio: false,
      video: false,
    };

    const hasStream = options.stream instanceof MediaStream;
    const hasAudioTrack = hasStream
      ? options.stream.getAudioTracks().length !== 0
      : false;
    const hasVideoTrack = hasStream
      ? options.stream.getVideoTracks().length !== 0
      : false;

    // force true if stream not passed(backward compatibility)
    if (
      hasStream === false &&
      options.audioReceiveEnabled === undefined &&
      options.videoReceiveEnabled === undefined
    ) {
      state.audio = true;
      state.video = true;
      return state;
    }

    // Set recvonly to true if `stream does not have track` and `option is true` case only
    if (options.audioReceiveEnabled && hasAudioTrack === false) {
      state.audio = true;
    }
    if (options.videoReceiveEnabled && hasVideoTrack === false) {
      state.video = true;
    }

    // If stream has track, ignore options, which results in setting sendrecv internally.
    if (options.audioReceiveEnabled === false && hasAudioTrack) {
      logger.warn(
        'Option audioReceiveEnabled will be treated as true, because passed stream has MediaStreamTrack(kind = audio)'
      );
    }
    if (options.videoReceiveEnabled === false && hasVideoTrack) {
      logger.warn(
        'Option videoReceiveEnabled will be treated as true, because passed stream has MediaStreamTrack(kind = video)'
      );
    }

    return state;
  }

  /**
   * Events the Negotiator class can emit.
   * @type {Enum}
   */
  static get EVENTS() {
    return NegotiatorEvents;
  }

  /**
   * Remote media stream received.
   *
   * @event Negotiator#addStream
   * @type {MediaStream}
   */

  /**
   * DataConnection is ready.
   *
   * @event Negotiator#dcCreated
   * @type {DataConnection}
   */

  /**
   * Offer SDP created.
   *
   * @event Negotiator#offerCreated
   * @type {RTCSessionDescription}
   */

  /**
   * Answer SDP created.
   *
   * @event Negotiator#answerCreated
   * @type {RTCSessionDescription}
   */

  /**
   * Ice Candidate created.
   *
   * @event Negotiator#iceCandidate
   * @type {RTCIceCandidate}
   */

  /**
   * Ice Candidate collection finished. Emits localDescription.
   *
   * @event Negotiator#iceCandidatesComplete
   * @type {RTCSessionDescription}
   */

  /**
   * Ice connection failed.
   *
   * @event Negotiator#iceConnectionFailed
   */

  /**
   * Session needs negotiation.
   *
   * @event Negotiator#negotiationNeeded
   */

  /**
   * Error occurred.
   *
   * @event Negotiator#error
   * @type {Error}
   */
}

/* harmony default export */ var negotiator = (negotiator_Negotiator);

// CONCATENATED MODULE: ./src/peer/connection.js








const ConnectionEvents = new enum_default.a([
  'candidate',
  'offer',
  'answer',
  'close',
  'forceClose',
]);

/**
 * Class that manages connections to other peers.
 * @extends EventEmitter
 */
class connection_Connection extends events_default.a {
  /**
   * Create a connection to another peer. Cannot be called directly. Must be called by a subclass.
   * @param {string} remoteId - The peerId of the peer you are connecting to.
   * @param {object} [options] - Optional arguments for the connection.
   * @param {string} [options.connectionId] - An ID to uniquely identify the connection.
   *                                          Defaults to random string if not specified.
   */
  constructor(remoteId, options) {
    super();

    options = options || {};

    // Abstract class
    if (this.constructor === connection_Connection) {
      throw new TypeError('Cannot construct Connection instances directly');
    }

    this._options = options;

    /**
     * Whether the Connection has been opened or not.
     * @type {boolean}
     */
    this.open = false;

    /**
     * The connection type. Either 'media' or 'data'.
     * @type {string}
     */
    this.type = undefined;

    /**
     * Any additional information to send to the peer.
     * @type {object}
     */
    this.metadata = this._options.metadata;

    /**
     * PeerId of the peer this connection is connected to.
     * @type {string}
     */
    this.remoteId = remoteId;

    this._negotiator = new negotiator();

    this._idPrefix = 'c_';
    this._randomIdSuffix = util.randomToken();

    this._setupNegotiatorMessageHandlers();
  }

  /**
   * An id to uniquely identify the connection.
   */
  get id() {
    return this._options.connectionId || this._idPrefix + this._randomIdSuffix;
  }

  /**
   * Handle an sdp answer message from the remote peer.
   * @param {object} answerMessage - Message object containing sdp answer.
   */
  async handleAnswer(answerMessage) {
    if (this._pcAvailable) {
      await this._negotiator.handleAnswer(answerMessage.answer);
      this.open = true;
      this._handleQueuedMessages();
    } else {
      logger.log(`Queuing ANSWER message in ${this.id} from ${this.remoteId}`);
      this._queuedMessages.push({
        type: config.MESSAGE_TYPES.SERVER.ANSWER.key,
        payload: answerMessage,
      });
    }
  }

  /**
   * Handle a candidate message from the remote peer.
   * @param {object} candidateMessage - Message object containing a candidate.
   */
  handleCandidate(candidateMessage) {
    // The orginator(caller) should wait for the remote ANSWER arrival and
    // setRemoteDescription(ANSWER) before handleCandidate(addIceCandidate).
    if (this._negotiator.originator && !this._negotiator.hasRemoteDescription) {
      this._queuedMessages.push({
        type: config.MESSAGE_TYPES.SERVER.CANDIDATE.key,
        payload: candidateMessage,
      });
      return;
    }

    if (this._pcAvailable) {
      this._negotiator.handleCandidate(candidateMessage.candidate);
    } else {
      logger.log(
        `Queuing CANDIDATE message in ${this.id} from ${this.remoteId}`
      );
      this._queuedMessages.push({
        type: config.MESSAGE_TYPES.SERVER.CANDIDATE.key,
        payload: candidateMessage,
      });
    }
  }

  /**
   * Handle an offer message from the remote peer. Allows an offer to be updated.
   * @param {object} offerMessage - Message object containing an offer.
   */
  updateOffer(offerMessage) {
    if (this.open) {
      this._negotiator.handleOffer(offerMessage.offer);
    } else {
      this._options.payload = offerMessage;
    }
  }

  /**
   * Gives a RTCPeerConnection.
   */
  getPeerConnection() {
    if (!this.open) {
      return null;
    }
    return this._negotiator._pc;
  }

  /**
   * Process messages received before the RTCPeerConnection is ready.
   * @private
   */
  _handleQueuedMessages() {
    for (const message of this._queuedMessages) {
      switch (message.type) {
        // Should we remove this ANSWER block
        // because ANSWER should be handled immediately?
        case config.MESSAGE_TYPES.SERVER.ANSWER.key:
          this.handleAnswer(message.payload);
          break;
        case config.MESSAGE_TYPES.SERVER.CANDIDATE.key:
          this.handleCandidate(message.payload);
          break;
        default:
          logger.warn(
            'Unrecognized message type:',
            message.type,
            'from peer:',
            this.remoteId
          );
          break;
      }
    }
    this._queuedMessages = [];
  }

  /**
   * Disconnect from remote peer.
   * @fires Connection#close
   */
  close(forceClose = false) {
    if (!this.open) {
      return;
    }

    this.open = false;
    this._negotiator.cleanup();
    this.emit(connection_Connection.EVENTS.close.key);

    if (forceClose) {
      this.emit(connection_Connection.EVENTS.forceClose.key);
    }
  }

  /**
   * Handle messages from the negotiator.
   * @private
   */
  _setupNegotiatorMessageHandlers() {
    this._negotiator.on(negotiator.EVENTS.answerCreated.key, answer => {
      const connectionAnswer = {
        answer: answer,
        dst: this.remoteId,
        connectionId: this.id,
        connectionType: this.type,
      };
      this.emit(connection_Connection.EVENTS.answer.key, connectionAnswer);
    });

    this._negotiator.on(negotiator.EVENTS.offerCreated.key, offer => {
      const connectionOffer = {
        offer: offer,
        dst: this.remoteId,
        connectionId: this.id,
        connectionType: this.type,
        metadata: this.metadata,
      };
      if (this.serialization) {
        connectionOffer.serialization = this.serialization;
      }
      if (this.label) {
        connectionOffer.label = this.label;
      }
      if (this.dcInit) {
        connectionOffer.dcInit = this.dcInit;
      }
      this.emit(connection_Connection.EVENTS.offer.key, connectionOffer);
    });

    this._negotiator.on(negotiator.EVENTS.iceCandidate.key, candidate => {
      const connectionCandidate = {
        candidate: candidate,
        dst: this.remoteId,
        connectionId: this.id,
        connectionType: this.type,
      };
      this.emit(connection_Connection.EVENTS.candidate.key, connectionCandidate);
    });

    this._negotiator.on(negotiator.EVENTS.iceConnectionFailed.key, () => {
      this.close();
    });
  }

  /**
   * The remote peerId.
   * @type {string}
   * @deprecated Use remoteId instead.
   */
  get peer() {
    logger.warn(
      `${
        this.constructor.name
      }.peer is deprecated and may be removed from a future version.` +
        ` Please use ${this.constructor.name}.remoteId instead.`
    );
    return this.remoteId;
  }

  /**
   * Events the Connection can emit.
   * @type {Enum}
   */
  static get EVENTS() {
    return ConnectionEvents;
  }

  /**
   * ICE candidate created event.
   *
   * @event Connection#candidate
   * @type {object}
   * @property {RTCIceCandidate} candidate - The ice candidate.
   * @property {string} dst - Destination peerId
   * @property {string} connectionId - This connection's id.
   * @property {string} connectionType - This connection's type.
   */

  /**
   * Offer created event.
   *
   * @event Connection#offer
   * @type {object}
   * @property {RTCSessionDescription} offer - The local offer to send to the peer.
   * @property {string} dst - Destination peerId
   * @property {string} connectionId - This connection's id.
   * @property {string} connectionType - This connection's type.
   * @property {object} metadata - Any extra data to send with the connection.
   */

  /**
   * Answer created event.
   *
   * @event Connection#answer
   * @type {object}
   * @property {RTCSessionDescription} answer - The local answer to send to the peer.
   * @property {string} dst - Destination peerId
   * @property {string} connectionId - This connection's id.
   * @property {string} connectionType - This connection's type.
   */

  /**
   * Connection closed event.
   *
   * @event Connection#close
   */

  /**
   * Requested to close the connection.
   *
   * @event Connection#forceClose
   */
}

/* harmony default export */ var peer_connection = (connection_Connection);

// EXTERNAL MODULE: ./node_modules/js-binarypack/lib/binarypack.js
var binarypack = __webpack_require__("./node_modules/js-binarypack/lib/binarypack.js");
var binarypack_default = /*#__PURE__*/__webpack_require__.n(binarypack);

// EXTERNAL MODULE: ./node_modules/object-sizeof/index.js
var object_sizeof = __webpack_require__("./node_modules/object-sizeof/index.js");
var object_sizeof_default = /*#__PURE__*/__webpack_require__.n(object_sizeof);

// CONCATENATED MODULE: ./src/peer/dataConnection.js










const DCEvents = new enum_default.a(['open', 'data', 'error']);

DCEvents.extend(peer_connection.EVENTS.enums);

const DCSerializations = new enum_default.a(['binary', 'binary-utf8', 'json', 'none']);

/**
 * Class that manages data connections to other peers.
 * @extends Connection
 */
class dataConnection_DataConnection extends peer_connection {
  /**
   * Create a data connection to another peer.
   * @param {string} remoteId - The peerId of the peer you are connecting to.
   * @param {object} [options] - Optional arguments for the connection.
   * @param {string} [options.connectionId] - An ID to uniquely identify the connection. Defaults to random string if not specified.
   * @param {string} [options.serialization] - How to serialize data when sending. One of 'binary', 'json' or 'none'.
   * @param {string} [options.label] - Label to easily identify the connection on either peer.
   * @param {Object} [options.dcInit] - Options passed to createDataChannel() as a RTCDataChannelInit.
   *                  See https://www.w3.org/TR/webrtc/#dom-rtcdatachannelinit
   * @param {string} [options.queuedMessages] - An array of messages that were already received before the connection was created.
   * @param {string} [options.payload] - An offer message that triggered creating this object.
   */
  constructor(remoteId, options) {
    super(remoteId, options);

    this._idPrefix = 'dc_';
    this.type = 'data';

    this._isOnOpenCalled = false;

    /**
     * Label to easily identify the DataConnection on either peer.
     * @type {string}
     */
    this.label = this._options.label || this.id;

    // Use reliable mode by default
    this.dcInit = this._options.dcInit || {};

    // Serialization is binary by default
    this.serialization = dataConnection_DataConnection.SERIALIZATIONS.binary.key;
    if (this._options.serialization) {
      if (!dataConnection_DataConnection.SERIALIZATIONS.get(this._options.serialization)) {
        // Can't emit error as there hasn't been a chance to set up listeners
        throw new Error('Invalid serialization');
      }
      this.serialization = this._options.serialization;

      if (this._isUnreliableDCInit(this.dcInit)) {
        logger.warn(
          'You can not specify serialization with unreliable mode enabled.'
        );
        this.serialization = dataConnection_DataConnection.SERIALIZATIONS.binary.key;
      }
    }

    // New send code properties
    this._sendBuffer = [];
    this._receivedData = {};
    // Messages stored by peer because DC was not ready yet
    this._queuedMessages = this._options.queuedMessages || [];

    // This replaces the PeerJS 'initialize' method
    this._negotiator.on(negotiator.EVENTS.dcCreated.key, dc => {
      this._dc = dc;
      this._dc.binaryType = 'arraybuffer';
      this._setupMessageHandlers();

      // Manually call dataChannel.onopen() if the dataChannel opened before the event handler was set.
      // This can happen if the tab is in the background in Chrome as the event loop is handled differently.
      if (!this._isOnOpenCalled && this._dc.readyState === 'open') {
        this._dc.onopen();
      }
    });

    // If this is not the originator, we need to set the pcConfig
    if (this._options.payload) {
      this._options.payload.pcConfig = this._options.pcConfig;
    }
  }

  /**
   * Start connection via negotiator and handle queued messages.
   * @return {Promise<void>} Promise that resolves when starting is done.
   */
  async startConnection() {
    await this._negotiator.startConnection(
      this._options.payload || {
        originator: true,
        type: 'data',
        label: this.label,
        dcInit: this.dcInit,
        pcConfig: this._options.pcConfig,
      }
    );

    this._pcAvailable = true;
    this._handleQueuedMessages();
  }

  /**
   * Set up data channel event and message handlers.
   * @private
   */
  _setupMessageHandlers() {
    this._dc.onopen = () => {
      if (this._isOnOpenCalled) {
        return;
      }

      logger.log('Data channel connection success');
      this.open = true;
      this._isOnOpenCalled = true;
      this.emit(dataConnection_DataConnection.EVENTS.open.key);
    };

    // We no longer need the reliable shim here
    this._dc.onmessage = msg => {
      this._handleDataMessage(msg);
    };

    this._dc.onclose = () => {
      logger.log('DataChannel closed for:', this.id);
      this.close();
    };

    this._dc.onerror = err => {
      logger.error(err);
    };
  }

  /**
   * Handle a data message from the peer.
   * @param {object} msg - The data message to handle.
   * @private
   */
  _handleDataMessage(msg) {
    if (this.serialization === dataConnection_DataConnection.SERIALIZATIONS.none.key) {
      this.emit(dataConnection_DataConnection.EVENTS.data.key, msg.data);
      return;
    } else if (this.serialization === dataConnection_DataConnection.SERIALIZATIONS.json.key) {
      this.emit(dataConnection_DataConnection.EVENTS.data.key, JSON.parse(msg.data));
      return;
    }

    // Everything below is for serialization binary or binary-utf8

    const dataMeta = binarypack_default.a.unpack(msg.data);

    // If we haven't started receiving pieces of data with a given id, this will be undefined
    // In that case, we need to initialise receivedData[id] to hold incoming file chunks
    let currData = this._receivedData[dataMeta.id];
    if (!currData) {
      currData = this._receivedData[dataMeta.id] = {
        size: dataMeta.size,
        type: dataMeta.type,
        name: dataMeta.name,
        mimeType: dataMeta.mimeType,
        totalParts: dataMeta.totalParts,
        parts: new Array(dataMeta.totalParts),
        receivedParts: 0,
      };
    }
    currData.receivedParts++;
    currData.parts[dataMeta.index] = dataMeta.data;

    if (currData.receivedParts === currData.totalParts) {
      delete this._receivedData[dataMeta.id];

      // recombine the sliced arraybuffers
      const ab = util.joinArrayBuffers(currData.parts);
      const unpackedData = binarypack_default.a.unpack(ab);

      let finalData;
      switch (currData.type) {
        case 'Blob':
          finalData = new Blob([new Uint8Array(unpackedData)], {
            type: currData.mimeType,
          });
          break;
        case 'File':
          finalData = new File([new Uint8Array(unpackedData)], currData.name, {
            type: currData.mimeType,
          });
          break;
        default:
          finalData = unpackedData;
      }

      this.emit(dataConnection_DataConnection.EVENTS.data.key, finalData);
    }
  }

  /**
   * Send data to peer. If serialization is 'binary', it will chunk it before sending.
   * @param {*} data - The data to send to the peer.
   */
  send(data) {
    if (!this.open) {
      this.emit(
        dataConnection_DataConnection.EVENTS.error.key,
        new Error(
          'Connection is not open. You should listen for the `open` event before sending messages.'
        )
      );
      return;
    }

    if (data === undefined || data === null) {
      return;
    }

    if (this.serialization === dataConnection_DataConnection.SERIALIZATIONS.none.key) {
      this._sendBuffer.push(data);
      this._startSendLoop();
      return;
    } else if (this.serialization === dataConnection_DataConnection.SERIALIZATIONS.json.key) {
      this._sendBuffer.push(JSON.stringify(data));
      this._startSendLoop();
      return;
    }

    // Everything below is for serialization binary or binary-utf8

    const packedData = binarypack_default.a.pack(data);
    const size = packedData.size;
    const type = data.constructor.name;

    const dataMeta = {
      id: util.randomId(),
      type: type,
      size: size,
      totalParts: 0,
    };

    if (type === 'File') {
      dataMeta.name = data.name;
    }
    if (data instanceof Blob) {
      dataMeta.mimeType = data.type;
    }

    // dataMeta contains all possible parameters by now.
    // Adjust the chunk size to avoid issues with sending
    const chunkSize = config.maxChunkSize - object_sizeof_default()(dataMeta);
    const numSlices = Math.ceil(size / chunkSize);
    dataMeta.totalParts = numSlices;

    // Perform any required slicing
    for (let sliceIndex = 0; sliceIndex < numSlices; sliceIndex++) {
      const slice = packedData.slice(
        sliceIndex * chunkSize,
        (sliceIndex + 1) * chunkSize
      );
      dataMeta.index = sliceIndex;
      dataMeta.data = slice;

      // Add all chunks to our buffer and start the send loop (if we haven't already)
      util.blobToArrayBuffer(binarypack_default.a.pack(dataMeta), ab => {
        this._sendBuffer.push(ab);
        this._startSendLoop();
      });
    }
  }

  /**
   * Disconnect from remote peer.
   * @fires DataConnection#close
   */
  close(forceClose) {
    super.close(forceClose);

    this._isOnOpenCalled = false;
  }

  /**
   * Start sending messages at intervals to allow other threads to run.
   * @private
   */
  _startSendLoop() {
    if (!this.sendInterval) {
      // Define send interval
      // Try sending a new chunk with every callback
      this.sendInterval = setInterval(() => {
        // Might need more extensive buffering than this:
        const currMsg = this._sendBuffer.shift();
        try {
          this._dc.send(currMsg);
        } catch (error) {
          this._sendBuffer.push(currMsg);
        }

        if (this._sendBuffer.length === 0) {
          clearInterval(this.sendInterval);
          this.sendInterval = undefined;
        }
      }, config.sendInterval);
    }
  }

  /**
   * Check dcInit argument is valid to enable unreliable mode.
   * See https://www.w3.org/TR/webrtc/#dom-rtcdatachannelinit
   * @param {Object} dcInit - Options passed to createDataChannel() as a RTCDataChannelInit.
   *                  See https://www.w3.org/TR/webrtc/#dom-rtcdatachannelinit
   * @return {boolean} Returns this dcInit has valid properties to enable unreliable mode.
   */
  _isUnreliableDCInit(dcInit) {
    if (!dcInit) {
      return false;
    }

    // Either of these props are passed, works on unreliable mode.
    if ('maxRetransmits' in dcInit || 'maxPacketLifeTime' in dcInit) {
      return true;
    }

    return false;
  }

  /**
   * Possible serializations for the DataConnection.
   * @type {Enum}
   */
  static get SERIALIZATIONS() {
    return DCSerializations;
  }

  /**
   * Events the DataConnection class can emit.
   * @type {Enum}
   */
  static get EVENTS() {
    return DCEvents;
  }

  /**
   * DataConnection created event.
   *
   * @event DataConnection#open
   */

  /**
   * Data received from peer.
   *
   * @event DataConnection#data
   * @type {*}
   */

  /**
   * Error occurred.
   *
   * @event DataConnection#error
   * @type {Error}
   */
}

/* harmony default export */ var dataConnection = (dataConnection_DataConnection);

// CONCATENATED MODULE: ./src/peer/mediaConnection.js






const MCEvents = new enum_default.a(['stream', 'removeStream']);

MCEvents.extend(peer_connection.EVENTS.enums);

/**
 * Class that manages data connections to other peers.
 * @extends Connection
 */
class mediaConnection_MediaConnection extends peer_connection {
  /**
   * Create a data connection to another peer.
   * @param {string} remoteId - The peerId of the peer you are connecting to.
   * @param {object} [options] - Optional arguments for the connection.
   * @param {string} [options.connectionId] - An ID to uniquely identify the connection. Defaults to random string if not specified.
   * @param {string} [options.label] - Label to easily identify the connection on either peer.
   * @param {object} [options.pcConfig] - A RTCConfiguration dictionary for the RTCPeerConnection.
   * @param {object} [options.stream] - The MediaStream to send to the remote peer. Set only when on the caller side.
   * @param {boolean} [options.originator] - true means the peer is the originator of the connection.
   * @param {string} [options.queuedMessages] - An array of messages that were already received before the connection was created.
   * @param {string} [options.payload] - An offer message that triggered creating this object.
   * @param {number} [options.videoBandwidth] - A max video bandwidth(kbps)
   * @param {number} [options.audioBandwidth] - A max audio bandwidth(kbps)
   * @param {string} [options.videoCodec] - A video codec like 'H264'
   * @param {string} [options.audioCodec] - A video codec like 'PCMU'
   * @param {boolean} [options.videoReceiveEnabled] - A flag to set video recvonly
   * @param {boolean} [options.audioReceiveEnabled] - A flag to set audio recvonly
   */
  constructor(remoteId, options) {
    super(remoteId, options);

    this._idPrefix = 'mc_';
    this.type = 'media';

    /**
     * The local MediaStream.
     * @type {MediaStream}
     */
    this.localStream = this._options.stream;

    // Messages stored by peer because MC was not ready yet
    this._queuedMessages = this._options.queuedMessages || [];
    this._pcAvailable = false;
  }

  /**
   * Start connection via negotiator and handle queued messages.
   * @return {Promise<void>} Promise that resolves when starting is done.
   */
  async startConnection() {
    if (!this._options.originator) {
      return;
    }

    await this._negotiator.startConnection({
      type: 'media',
      stream: this.localStream,
      originator: this._options.originator,
      pcConfig: this._options.pcConfig,
      videoBandwidth: this._options.videoBandwidth,
      audioBandwidth: this._options.audioBandwidth,
      videoCodec: this._options.videoCodec,
      audioCodec: this._options.audioCodec,
      videoReceiveEnabled: this._options.videoReceiveEnabled,
      audioReceiveEnabled: this._options.audioReceiveEnabled,
    });

    this._pcAvailable = true;
    this._handleQueuedMessages();
  }

  /**
   * Create and send an answer message.
   * @param {MediaStream} stream - The stream to send to the peer.
   * @param {object} [options] - Optional arguments for the connection.
   * @param {number} [options.videoBandwidth] - A max video bandwidth(kbps)
   * @param {number} [options.audioBandwidth] - A max audio bandwidth(kbps)
   * @param {string} [options.videoCodec] - A video codec like 'H264'
   * @param {string} [options.audioCodec] - A video codec like 'PCMU'
   * @param {boolean} [options.videoReceiveEnabled] - A flag to set video recvonly
   * @param {boolean} [options.audioReceiveEnabled] - A flag to set audio recvonly
   */
  answer(stream, options = {}) {
    if (this.localStream) {
      logger.warn(
        'localStream already exists on this MediaConnection. Are you answering a call twice?'
      );
      return;
    }

    this._options.payload.stream = stream;

    this.localStream = stream;
    this._negotiator.startConnection({
      type: 'media',
      stream: this.localStream,
      originator: false,
      offer: this._options.payload.offer,
      pcConfig: this._options.pcConfig,
      audioBandwidth: options.audioBandwidth,
      videoBandwidth: options.videoBandwidth,
      videoCodec: options.videoCodec,
      audioCodec: options.audioCodec,
      videoReceiveEnabled: options.videoReceiveEnabled,
      audioReceiveEnabled: options.audioReceiveEnabled,
    });
    this._pcAvailable = true;

    this._handleQueuedMessages();

    this.open = true;
  }

  /**
   * Replace the stream being sent with a new one.
   * @param {MediaStream} newStream - The stream to replace the old stream with.
   */
  replaceStream(newStream) {
    this._negotiator.replaceStream(newStream);
    this.localStream = newStream;
  }

  /**
   * Set up negotiator message handlers.
   * @private
   */
  _setupNegotiatorMessageHandlers() {
    super._setupNegotiatorMessageHandlers();

    this._negotiator.on(negotiator.EVENTS.addStream.key, remoteStream => {
      logger.log('Receiving stream', remoteStream);

      // return if the remoteStream which we will add already exists
      if (this.remoteStream && this.remoteStream.id === remoteStream.id) {
        return;
      }
      this.remoteStream = remoteStream;

      this.emit(mediaConnection_MediaConnection.EVENTS.stream.key, remoteStream);
    });

    this._negotiator.on(negotiator.EVENTS.removeStream.key, remoteStream => {
      logger.log('Stream removed', remoteStream);

      // Don't unset if a new stream has already replaced the old one
      if (this.remoteStream === remoteStream) {
        this.remoteStream = null;
      }
      this.emit(mediaConnection_MediaConnection.EVENTS.removeStream.key, remoteStream);
    });
  }

  /**
   * Events the MediaConnection class can emit.
   * @type {Enum}
   */
  static get EVENTS() {
    return MCEvents;
  }

  /**
   * MediaStream received from peer.
   *
   * @event MediaConnection#stream
   * @type {MediaStream}
   */

  /**
   * MediaStream from peer was removed.
   *
   * @event MediaConnection#removeStream
   * @type {MediaStream}
   */
}

/* harmony default export */ var mediaConnection = (mediaConnection_MediaConnection);

// CONCATENATED MODULE: ./src/peer/room.js



const Events = [
  'stream',
  'removeStream',
  'open',
  'close',
  'peerJoin',
  'peerLeave',
  'error',
  'data',
  'log',
];

const MessageEvents = [
  'offer',
  'answer',
  'candidate',
  'leave',
  'close',
  'getLog',
  'broadcast',
];

const RoomEvents = new enum_default.a(Events);
const RoomMessageEvents = new enum_default.a(MessageEvents);

/**
 * Class to manage rooms where one or more users can participate
 * @extends EventEmitter
 */
class room_Room extends events_default.a {
  /**
   * Creates a Room instance.
   * @param {string} name - Room name.
   * @param {string} peerId - User's peerId.
   * @param {object} [options] - Optional arguments for the connection.
   * @param {object} [options.stream] - User's medias stream to send other participants.
   * @param {object} [options.pcConfig] - A RTCConfiguration dictionary for the RTCPeerConnection.
   * @param {number} [options.videoBandwidth] - A max video bandwidth(kbps)
   * @param {number} [options.audioBandwidth] - A max audio bandwidth(kbps)
   * @param {string} [options.videoCodec] - A video codec like 'H264'
   * @param {string} [options.audioCodec] - A video codec like 'PCMU'
   * @param {boolean} [options.videoReceiveEnabled] - A flag to set video recvonly
   * @param {boolean} [options.audioReceiveEnabled] - A flag to set audio recvonly
   */
  constructor(name, peerId, options = {}) {
    super();

    // Abstract class
    if (this.constructor === room_Room) {
      throw new TypeError('Cannot construct Room instances directly');
    }

    this.name = name;
    this._options = options;
    this._peerId = peerId;
    this._localStream = this._options.stream;

    this._pcConfig = this._options.pcConfig;
  }

  /**
   * Handle received data message from other paricipants in the room.
   * It emits data event.
   * @param {object} dataMessage - The data message to handle.
   * @param {ArrayBuffer} dataMessage.data - The data that a peer sent in the room.
   * @param {string} dataMessage.src -  The peerId of the peer who sent the data.
   * @param {string} [dataMessage.roomName] -  The name of the room user is joining.
   */
  handleData(dataMessage) {
    const message = {
      data: dataMessage.data,
      src: dataMessage.src,
    };
    this.emit(room_Room.EVENTS.data.key, message);
  }

  /**
   * Handle received log message.
   * It emits log event with room's logs.
   * @param {Array} logs - An array containing JSON text.
   */
  handleLog(logs) {
    this.emit(room_Room.EVENTS.log.key, logs);
  }

  /**
   * Start getting room's logs from SkyWay server.
   */
  getLog() {
    const message = {
      roomName: this.name,
    };
    this.emit(room_Room.MESSAGE_EVENTS.getLog.key, message);
  }

  /**
   * Events the Room class can emit.
   * @type {Enum}
   */
  static get EVENTS() {
    return RoomEvents;
  }

  /**
   * MediaStream received from peer in the room.
   *
   * @event Room#stream
   * @type {MediaStream}
   */

  /**
   * Room is ready.
   *
   * @event Room#open
   */

  /**
   * All connections in the room has closed.
   *
   * @event Room#close
   */

  /**
   * New peer has joined.
   *
   * @event Room#peerJoin
   * @type {string}
   */

  /**
   * A peer has left.
   *
   * @event Room#peerLeave
   * @type {string}
   */

  /**
   * Error occured
   *
   * @event Room#error
   */

  /**
   * Data received from peer.
   *
   * @event Room#data
   * @type {object}
   * @property {string} src - The peerId of the peer who sent the data.
   * @property {*} data - The data that a peer sent in the room.
   */

  /**
   * Room's log received.
   *
   * @event Room#log
   * @type {Array}
   */

  /**
   * Connection closed event.
   *
   * @event Connection#close
   */

  /**
   * Events the Room class can emit.
   * @type {Enum}
   */
  static get MESSAGE_EVENTS() {
    return RoomMessageEvents;
  }

  /**
   * Offer created event.
   *
   * @event Room#offer
   * @type {object}
   * @property {RTCSessionDescription} offer - The local offer to send to the peer.
   * @property {string} dst - Destination peerId
   * @property {string} connectionId - This connection's id.
   * @property {string} connectionType - This connection's type.
   * @property {object} metadata - Any extra data to send with the connection.
   */

  /**
   * Answer created event.
   *
   * @event Room#answer
   * @type {object}
   * @property {RTCSessionDescription} answer - The local answer to send to the peer.
   * @property {string} dst - Destination peerId
   * @property {string} connectionId - This connection's id.
   * @property {string} connectionType - This connection's type.
   */

  /**
   * ICE candidate created event.
   *
   * @event Room#candidate
   * @type {object}
   * @property {RTCIceCandidate} candidate - The ice candidate.
   * @property {string} dst - Destination peerId
   * @property {string} connectionId - This connection's id.
   * @property {string} connectionType - This connection's type.
   */

  /**
   * Left the room.
   *
   * @event Room#peerLeave
   * @type {object}
   * @property {string} roomName - The room name.
   */

  /**
   * Get room log from SkyWay server.
   *
   * @event Room#log
   * @type {object}
   * @property {string} roomName - The room name.
   */
}

/* harmony default export */ var peer_room = (room_Room);

// CONCATENATED MODULE: ./src/peer/sfuRoom.js








const sfuRoom_MessageEvents = ['offerRequest', 'candidate'];

const SFUEvents = new enum_default.a([]);
SFUEvents.extend(peer_room.EVENTS.enums);
const SFUMessageEvents = new enum_default.a(sfuRoom_MessageEvents);
SFUMessageEvents.extend(peer_room.MESSAGE_EVENTS.enums);

/**
 * Class that manages SFU type room.
 * @extends Room
 */
class sfuRoom_SFURoom extends peer_room {
  /**
   * Creates a SFU type room.
   * @param {string} name - Room name.
   * @param {string} peerId - peerId - User's peerId.
   * @param {object} [options] - Optional arguments for the connection.
   * @param {MediaStream} [options.stream] - The MediaStream to send to the remote peer.
   * @param {object} [options.pcConfig] - A RTCConfiguration dictionary for the RTCPeerConnection.
   * @param {number} [options.videoBandwidth] - A max video bandwidth(kbps)
   * @param {number} [options.audioBandwidth] - A max audio bandwidth(kbps)
   * @param {string} [options.videoCodec] - A video codec like 'H264'
   * @param {string} [options.audioCodec] - A video codec like 'PCMU'
   * @param {boolean} [options.videoReceiveEnabled] - A flag to set video recvonly
   * @param {boolean} [options.audioReceiveEnabled] - A flag to set audio recvonly
   */
  constructor(name, peerId, options) {
    super(name, peerId, options);

    this.remoteStreams = {};
    this.members = [];

    this._open = false;
    this._msidMap = {};
    this._unknownStreams = {};

    this._negotiator = new negotiator();
  }

  /**
   * Send Offer request message to SFU server.
   * @param {MediaStream} [stream] - A media stream to send.
   */
  call(stream) {
    if (stream) {
      this._localStream = stream;
    }

    const data = {
      roomName: this.name,
    };

    this.emit(sfuRoom_SFURoom.MESSAGE_EVENTS.offerRequest.key, data);
  }

  /**
   * Handles Offer message from SFU server.
   * It create new RTCPeerConnection object.
   * @param {object} offerMessage - Message object containing Offer SDP.
   * @param {object} offerMessage.offer - Object containing Offer SDP text.
   */
  handleOffer(offerMessage) {
    let offer = offerMessage.offer;

    /**
     * Our SFU returns unified-plan SDP.
     * Our support browsers and sdp semantics relations are
     *
     * Chrome: plan-b(controlled by us)
     * Firefox: unified-plan
     * Safari 12.1~: plan-b
     * Safari 12.1~: unified-plan(if user enables)
     *
     * So we need to convert server offer SDP if it in case.
     * We don't need to convert the answer back to Unified Plan because the server can handle Plan B.
     */
    const browserInfo = util.detectBrowser();
    // Means Chrome or Safari(plan-b)
    if (!(browserInfo.name === 'firefox' || util.isUnifiedPlanSafari())) {
      offer = sdpUtil.unifiedToPlanB(offer);
    }

    // Handle SFU Offer and send Answer to Server
    if (this._connectionStarted) {
      this._negotiator.handleOffer(offer);
    } else {
      this._negotiator.startConnection({
        type: 'media',
        stream: this._localStream,
        pcConfig: this._options.pcConfig,
        offer: offer,
      });
      this._setupNegotiatorMessageHandlers();
      this._connectionStarted = true;
    }
  }

  /**
   * Handle messages from the negotiator.
   * @private
   */
  _setupNegotiatorMessageHandlers() {
    this._negotiator.on(negotiator.EVENTS.addStream.key, stream => {
      const remoteStream = stream;

      if (this._msidMap[remoteStream.id]) {
        remoteStream.peerId = this._msidMap[remoteStream.id];

        // return if the remoteStream's peerID is my peerID
        if (remoteStream.peerId === this._peerId) {
          return;
        }

        // return if the cachedStream which we will add already exists
        const cachedStream = this.remoteStreams[remoteStream.id];
        if (cachedStream && cachedStream.id === remoteStream.id) {
          return;
        }
        this.remoteStreams[remoteStream.id] = remoteStream;
        this.emit(sfuRoom_SFURoom.EVENTS.stream.key, remoteStream);

        logger.log(
          `Received remote media stream for ${remoteStream.peerId} in ${
            this.name
          }`
        );
      } else {
        this._unknownStreams[remoteStream.id] = remoteStream;
      }
    });

    this._negotiator.on(negotiator.EVENTS.removeStream.key, stream => {
      delete this.remoteStreams[stream.id];
      delete this._msidMap[stream.id];
      delete this._unknownStreams[stream.id];

      this.emit(sfuRoom_SFURoom.EVENTS.removeStream.key, stream);
    });

    this._negotiator.on(negotiator.EVENTS.negotiationNeeded.key, () => {
      // Renegotiate by requesting an offer then sending an answer when one is created.
      const offerRequestMessage = {
        roomName: this.name,
      };
      this.emit(sfuRoom_SFURoom.MESSAGE_EVENTS.offerRequest.key, offerRequestMessage);
    });

    this._negotiator.on(negotiator.EVENTS.answerCreated.key, answer => {
      // If we specify sdpSemantics: unified-plan in Chrome, need to add Chrome here
      // or fix some lines to ensure SDP to be recognized by SFU.
      if (util.isUnifiedPlanSafari()) {
        answer.sdp = sdpUtil.pretendUnifiedPlan(answer.sdp);
      }

      const answerMessage = {
        roomName: this.name,
        answer: answer,
      };
      this.emit(sfuRoom_SFURoom.MESSAGE_EVENTS.answer.key, answerMessage);
    });

    this._negotiator.on(negotiator.EVENTS.iceConnectionFailed.key, () => {
      this.close();
    });

    this._negotiator.on(negotiator.EVENTS.iceCandidate.key, candidate => {
      const candidateMessage = {
        roomName: this.name,
        candidate: candidate,
      };
      this.emit(sfuRoom_SFURoom.MESSAGE_EVENTS.candidate.key, candidateMessage);
    });
  }

  /**
   * Handles Join message from SFU server.
   * It emits peerJoin event and if the message contains user's peerId, also emits open event.
   * @param {Object} joinMessage - Message object.
   * @param {string} joinMessage.src - The peerId of the peer that joined.
   * @param {string} joinMessage.roomName - The name of the joined room.
   */
  handleJoin(joinMessage) {
    const src = joinMessage.src;

    if (src === this._peerId) {
      this._open = true;

      this.call(this._localStream);
      this.emit(sfuRoom_SFURoom.EVENTS.open.key);

      // At this stage the Server has acknowledged us joining a room
      return;
    }

    this.members.push(src);
    this.emit(sfuRoom_SFURoom.EVENTS.peerJoin.key, src);
  }

  /**
   * Handles Leave message from SFU server.
   * It emits peerLeave message.
   * @param {Object} leaveMessage - Message from SFU server.
   */
  handleLeave(leaveMessage) {
    if (!this._open) {
      return;
    }

    const src = leaveMessage.src;

    const index = this.members.indexOf(src);
    if (index >= 0) {
      this.members.splice(index, 1);
    }

    // Delete leaving peer's streams
    for (const msid in this.remoteStreams) {
      if (this.remoteStreams[msid].peerId === src) {
        delete this.remoteStreams[msid];
      }
    }

    this.emit(sfuRoom_SFURoom.EVENTS.peerLeave.key, src);
  }

  /**
   * Send data to all participants in the room with WebSocket.
   * It emits broadcast event.
   * @param {*} data - The data to send.
   */
  send(data) {
    if (!this._open) {
      return;
    }

    const message = {
      roomName: this.name,
      data: data,
    };
    this.emit(sfuRoom_SFURoom.MESSAGE_EVENTS.broadcast.key, message);
  }

  /**
   * Close PeerConnection and emit leave and close event.
   */
  close() {
    if (!this._open) {
      return;
    }

    if (this._negotiator) {
      this._negotiator.cleanup();
    }

    this._open = false;

    const message = {
      roomName: this.name,
    };
    this.emit(sfuRoom_SFURoom.MESSAGE_EVENTS.leave.key, message);
    this.emit(sfuRoom_SFURoom.EVENTS.close.key);
  }

  /**
   * Replace the stream being sent with a new one.
   * @param {MediaStream} newStream - The stream to replace the old stream with.
   */
  replaceStream(newStream) {
    this._localStream = newStream;
    this._negotiator.replaceStream(newStream);
  }

  /**
   * Update the entries in the msid to peerId map.
   * @param {Object} msids - Object with msids as the key and peerIds as the values.
   */
  updateMsidMap(msids = {}) {
    this._msidMap = msids;

    for (const msid of Object.keys(this._unknownStreams)) {
      if (this._msidMap[msid]) {
        const remoteStream = this._unknownStreams[msid];
        remoteStream.peerId = this._msidMap[remoteStream.id];

        delete this._unknownStreams[msid];

        if (remoteStream.peerId === this._peerId) {
          return;
        }

        this.remoteStreams[remoteStream.id] = remoteStream;
        this.emit(sfuRoom_SFURoom.EVENTS.stream.key, remoteStream);
      }
    }
  }

  /**
   * Events the SFURoom class can emit.
   * @type {Enum}
   */
  static get EVENTS() {
    return SFUEvents;
  }

  /**
   * Message events the MeshRoom class can emit.
   * @type {Enum}
   */
  static get MESSAGE_EVENTS() {
    return SFUMessageEvents;
  }

  /**
   * Send offer request to SkyWay server.
   *
   * @event SFURoom#offerRequest
   * @type {object}
   * @property {string} roomName - The Room name.

   */

  /**
   * Send data to all peers in the room by WebSocket.
   *
   * @event SFURoom#broadcast
   * @type {object}
   * @property {string} roomName - The Room name.
   * @property {*} data - The data to send.
   */
}

/* harmony default export */ var peer_sfuRoom = (sfuRoom_SFURoom);

// CONCATENATED MODULE: ./src/peer/meshRoom.js









const meshRoom_MessageEvents = ['broadcastByDC', 'getPeers'];

const MeshEvents = new enum_default.a([]);
MeshEvents.extend(peer_room.EVENTS.enums);
const MeshMessageEvents = new enum_default.a(meshRoom_MessageEvents);
MeshMessageEvents.extend(peer_room.MESSAGE_EVENTS.enums);

/**
 * Class that manages fullmesh type room.
 * @extends Room
 */
class meshRoom_MeshRoom extends peer_room {
  /**
   * Create a fullmesh room.
   * @param {string} name - Room name.
   * @param {string} peerId - User's peerId.
   * @param {object} [options] - Optional arguments for the connection.
   * @param {MediaStream} [options.stream] - The MediaStream to send to the remote peer.
   * @param {object} [options.pcConfig] - A RTCConfiguration dictionary for the RTCPeerConnection.
   * @param {number} [options.videoBandwidth] - A max video bandwidth(kbps)
   * @param {number} [options.audioBandwidth] - A max audio bandwidth(kbps)
   * @param {string} [options.videoCodec] - A video codec like 'H264'
   * @param {string} [options.audioCodec] - A video codec like 'PCMU'
   * @param {boolean} [options.videoReceiveEnabled] - A flag to set video recvonly
   * @param {boolean} [options.audioReceiveEnabled] - A flag to set audio recvonly
   */
  constructor(name, peerId, options) {
    super(name, peerId, options);

    this.connections = {};

    // messages(candidates) received before connection is ready
    this._queuedMessages = {};
  }

  /**
   * Called by client app to create MediaConnections.
   * It emit getPeers event for getting peerIds of all of room participant.
   * After getting peerIds, makeMCs is called.
   * @param {MediaStream} [stream] - The MediaStream to send to the remote peer.
   */
  call(stream) {
    if (stream) {
      this._localStream = stream;
    }

    const data = {
      roomName: this.name,
      type: 'media',
    };

    this.emit(meshRoom_MeshRoom.MESSAGE_EVENTS.getPeers.key, data);
  }

  /**
   * Called by client app to create DataConnections.
   * It emit getPeers event for getting peerIds of all of room participant.
   * After getting peerIds, makeDCs is called.
   */
  connect() {
    const data = {
      roomName: this.name,
      type: 'data',
    };

    this.emit(meshRoom_MeshRoom.MESSAGE_EVENTS.getPeers.key, data);
  }

  /**
   * Start video call to all participants in the room.
   * @param {Array} peerIds - Array of peerIds you are calling to.
   */
  makeMediaConnections(peerIds) {
    const options = {
      stream: this._localStream,
      pcConfig: this._pcConfig,
      originator: true,
      videoBandwidth: this._options.videoBandwidth,
      audioBandwidth: this._options.audioBandwidth,
      videoCodec: this._options.videoCodec,
      audioCodec: this._options.audioCodec,
      videoReceiveEnabled: this._options.videoReceiveEnabled,
      audioReceiveEnabled: this._options.audioReceiveEnabled,
    };

    this._makeConnections(peerIds, 'media', options);
  }

  /**
   * Start data connection to all participants in the room.
   * @param {Array} peerIds - Array of peerIds you are connecting to.
   */
  makeDataConnections(peerIds) {
    const options = {
      pcConfig: this._pcConfig,
    };

    this._makeConnections(peerIds, 'data', options);
  }

  /**
   * Handle join message from new participant in the room.
   * It emits peerJoin event and if the message contains user's peerId, also emits open event.
   * @param {Object} joinMessage - Message object.
   * @param {string} joinMessage.src - The peerId of the peer that joined.
   * @param {string} joinMessage.roomName - The name of the joined room.
   */
  handleJoin(joinMessage) {
    const src = joinMessage.src;
    if (src === this._peerId) {
      this.call(this._localStream);
      this.emit(meshRoom_MeshRoom.EVENTS.open.key);

      // At this stage the Server has acknowledged us joining a room
      return;
    }

    this.emit(meshRoom_MeshRoom.EVENTS.peerJoin.key, src);
  }

  /**
   * Handle leave message from other participant in the room.
   * It deletes connection from room's connections property and emits peerLeave event.
   * @param {Object} leaveMessage - Message object.
   * @param {string} leaveMessage.src - The peerId of the peer that left.
   * @param {string} leaveMessage.roomName - The name of the left room.
   */
  handleLeave(leaveMessage) {
    const src = leaveMessage.src;
    this._deleteConnections(src);
    this.emit(meshRoom_MeshRoom.EVENTS.peerLeave.key, src);
  }

  /**
   * Handle Offer message from new participant and create a Connection instance.
   * @param {object} offerMessage - Message object containing Offer SDP.
   * @param {object} offerMessage.offer - Object containing Offer SDP text.
   * @param {string} offerMessage.connectionId - An ID to uniquely identify the connection.
   * @param {string} offerMessage.connectionType - One of 'media' or 'data'.
   * @param {string} offerMessage.dst - The peerId of the peer who receiving the Offer.
   * @param {string} offerMessage.roomName - The name of the room user is joining.
   * @param {string} offerMessage.src - The peerId of the peer who sent the Offer.
   */
  handleOffer(offerMessage) {
    const connectionId = offerMessage.connectionId;
    let connection = this._getConnection(offerMessage.src, connectionId);

    if (connection) {
      connection.updateOffer(offerMessage);
      return;
    }

    if (offerMessage.connectionType === 'media') {
      connection = new mediaConnection(offerMessage.src, {
        connectionId: connectionId,
        payload: offerMessage,
        metadata: offerMessage.metadata,
        queuedMessages: this._queuedMessages[connectionId],
        pcConfig: this._pcConfig,
      });
      connection.startConnection();

      logger.log('MediaConnection created in OFFER');
      this._addConnection(offerMessage.src, connection);
      this._setupMessageHandlers(connection);

      connection.answer(this._localStream, {
        videoBandwidth: this._options.videoBandwidth,
        audioBandwidth: this._options.audioBandwidth,
        videoCodec: this._options.videoCodec,
        audioCodec: this._options.audioCodec,
        videoReceiveEnabled: this._options.videoReceiveEnabled,
        audioReceiveEnabled: this._options.audioReceiveEnabled,
      });
    } else {
      logger.warn(
        `Received malformed connection type: ${offerMessage.connectionType}`
      );
    }
  }

  /**
   * Handle Answer message from participant in the room.
   * @param {object} answerMessage - Message object containing Answer SDP.
   * @param {object} answerMessage.answer - Object containing Answer SDP text.
   * @param {string} answerMessage.connectionId - An ID to uniquely identify the connection.
   * @param {string} answerMessage.connectionType - One of 'media' or 'data'.
   * @param {string} answerMessage.dst - The peerId of the peer who receiving the Answer.
   * @param {string} answerMessage.roomName - The name of the room user is joining.
   * @param {string} answerMessage.src - The peerId of the peer who sent the Answer.
   */
  handleAnswer(answerMessage) {
    const connection = this._getConnection(
      answerMessage.src,
      answerMessage.connectionId
    );

    if (connection) {
      connection.handleAnswer(answerMessage);
    }
  }

  /**
   * Handles Candidate message from participant in the room.
   * @param {object} candidateMessage - Message object containing Candidate SDP.
   * @param {object} candidateMessage.candidate - Object containing Candidate SDP text.
   * @param {string} candidateMessage.connectionId - An ID to uniquely identify the connection.
   * @param {string} candidateMessage.connectionType - One of 'media' or 'data'.
   * @param {string} candidateMessage.dst - The peerId of the peer who receiving the Candidate.
   * @param {string} candidateMessage.roomName - The name of the room user is joining.
   * @param {string} candidateMessage.src - The peerId of the peer who sent the Candidate.
   */
  handleCandidate(candidateMessage) {
    const connection = this._getConnection(
      candidateMessage.src,
      candidateMessage.connectionId
    );

    if (connection) {
      connection.handleCandidate(candidateMessage);
    } else {
      // Looks like PeerConnection hasn't completed setRemoteDescription
      if (this._queuedMessages[candidateMessage.connectionId] === undefined) {
        this._queuedMessages[candidateMessage.connectionId] = [];
      }
      this._queuedMessages[candidateMessage.connectionId].push({
        type: config.MESSAGE_TYPES.SERVER.CANDIDATE.key,
        payload: candidateMessage,
      });
    }
  }

  /**
   * Send data to all participants in the room with WebSocket.
   * It emits broadcast event.
   * @param {*} data - The data to send.
   */
  send(data) {
    const message = {
      roomName: this.name,
      data: data,
    };
    this.emit(meshRoom_MeshRoom.MESSAGE_EVENTS.broadcast.key, message);
  }

  /**
   * Close all connections in the room.
   */
  close() {
    for (const peerId in this.connections) {
      if (this.connections.hasOwnProperty(peerId)) {
        this.connections[peerId].forEach(connection => {
          connection.close();
        });
      }
    }
    const message = {
      roomName: this.name,
    };
    this.emit(meshRoom_MeshRoom.MESSAGE_EVENTS.leave.key, message);
    this.emit(meshRoom_MeshRoom.EVENTS.close.key);
  }

  /**
   * Replace the stream being sent on all MediaConnections   with a new one.
   * @param {MediaStream} newStream - The stream to replace the old stream with.
   */
  replaceStream(newStream) {
    this._localStream = newStream;
    for (const peerId in this.connections) {
      if (this.connections.hasOwnProperty(peerId)) {
        this.connections[peerId].forEach(connection => {
          if (connection.type === 'media') {
            connection.replaceStream(newStream);
          }
        });
      }
    }
  }

  /**
   * Append a connection to peer's array of connections, stored in room.connections.
   * @param {string} peerId - User's peerID.
   * @param {MediaConnection|DataConnection} connection - An instance of MediaConnection or DataConnection.
   * @private
   */
  _addConnection(peerId, connection) {
    if (!this.connections[peerId]) {
      this.connections[peerId] = [];
    }
    this.connections[peerId].push(connection);
  }

  /**
   * Start connections and add handlers.
   * @param {Array} peerIds - Array of peerIds you are creating connections for.
   * @param {string} type - Either 'data' or 'media'.
   * @param {Object} options - Options to pass to the connection constructor.
   * @private
   */
  _makeConnections(peerIds, type, options) {
    peerIds
      .filter(peerId => {
        return peerId !== this._peerId;
      })
      .forEach(peerId => {
        let connection;

        switch (type) {
          case 'data':
            connection = new dataConnection(peerId, options);
            break;
          case 'media':
            connection = new mediaConnection(peerId, options);
            break;
          default:
            return;
        }

        connection.startConnection();
        this._addConnection(peerId, connection);
        this._setupMessageHandlers(connection);

        logger.log(`${type} connection to ${peerId} created in ${this.name}`);
      });
  }

  /**
   * Delete a connection according to given peerId.
   * @param {string} peerId - The id of the peer that will be deleted.
   * @private
   */
  _deleteConnections(peerId) {
    if (this.connections[peerId]) {
      delete this.connections[peerId];
    }
  }

  /**
   * Return a connection according to given peerId and connectionId.
   * @param {string} peerId - User's PeerId.
   * @param {string} connectionId - An ID to uniquely identify the connection.
   * @return {Connection} A connection according to given peerId and connectionId.
   * @private
   */
  _getConnection(peerId, connectionId) {
    if (this.connections && this.connections[peerId]) {
      const conn = this.connections[peerId].filter(connection => {
        return connection.id === connectionId;
      });
      return conn[0];
    }
    return null;
  }

  /**
   * Set up connection event and message handlers.
   * @param {MediaConnection|DataConnection} connection - An instance of MediaConnection or DataConnection.
   * @private
   */
  _setupMessageHandlers(connection) {
    connection.on(peer_connection.EVENTS.offer.key, offerMessage => {
      offerMessage.roomName = this.name;
      this.emit(meshRoom_MeshRoom.MESSAGE_EVENTS.offer.key, offerMessage);
    });

    connection.on(peer_connection.EVENTS.answer.key, answerMessage => {
      answerMessage.roomName = this.name;
      this.emit(meshRoom_MeshRoom.MESSAGE_EVENTS.answer.key, answerMessage);
    });

    connection.on(peer_connection.EVENTS.candidate.key, candidateMessage => {
      candidateMessage.roomName = this.name;
      this.emit(meshRoom_MeshRoom.MESSAGE_EVENTS.candidate.key, candidateMessage);
    });

    if (connection.type === 'media') {
      connection.on(mediaConnection.EVENTS.stream.key, remoteStream => {
        remoteStream.peerId = connection.remoteId;
        this.emit(meshRoom_MeshRoom.EVENTS.stream.key, remoteStream);
      });

      connection.on(mediaConnection.EVENTS.removeStream.key, remoteStream => {
        this.emit(meshRoom_MeshRoom.EVENTS.removeStream.key, remoteStream);
      });
    }
  }

  /**
   * Events the MeshRoom class can emit.
   * @type {Enum}
   */
  static get EVENTS() {
    return MeshEvents;
  }

  /**
   * Message events the MeshRoom class can emit.
   * @type {Enum}
   */
  static get MESSAGE_EVENTS() {
    return MeshMessageEvents;
  }

  /**
   * Get all peer's peerId joining in the room.
   * @event MeshRoom#getPeers
   * @type {object}
   * @property {string} roomName - The Room name.
   * @property {string} type - One of 'media' or 'data'.

   */

  /**
   * Send data to all peers in the room by WebSocket.
   *
   * @event MeshRoom#broadcastByWS
   * @type {object}
   * @property {string} roomName - The Room name.
   * @property {*} data - The data to send.
   */

  /**
   * Send data to all peers in the room by DataChannel.
   *
   * @event MeshRoom#broadcastByDC
   * @type {object}
   * @property {string} roomName - The Room name.
   * @property {*} data - The data to send.
   */
}

/* harmony default export */ var peer_meshRoom = (meshRoom_MeshRoom);

// CONCATENATED MODULE: ./src/peer.js













const PeerEvents = new enum_default.a([
  'open',
  'error',
  'call',
  'connection',
  'expiresin',
  'close',
  'disconnected',
]);

/**
 * Class that manages all p2p connections and rooms.
 * This class contains socket.io message handlers.
 * @extends EventEmitter
 */
class peer_Peer extends events_default.a {
  /**
   * Create new Peer instance. This is called by user application.
   * @param {string} [id] - User's peerId.
   * @param {Object} options - Optional arguments for the connection.
   * @param {string} options.key - SkyWay API key.
   * @param {number} [options.debug=0] - Log level. NONE:0, ERROR:1, WARN:2, FULL:3.
   * @param {string} [options.host] - The host name of signaling server.
   * @param {number} [options.port] - The port number of signaling server.
   * @param {string} [options.dispatcherPort=dispatcher.webrtc.ecl.ntt.com] - The host name of the dispatcher server.
   * @param {number} [options.dispatcherPort=443] - The port number of dispatcher server.
   * @param {boolean} [options.dispatcherSecure=true] - True if the dispatcher server supports https.
   * @param {object} [options.config=config.defaultConfig] - A RTCConfiguration dictionary for the RTCPeerConnection.
   * @param {boolean} [options.turn=true] - Whether using TURN or not.
   * @param {object} [options.credential] - The credential used to authenticate peer.
   + @param {number} [options.credential.timestamp] - Current UNIX timestamp.
   + @param {number} [options.credential.ttl] - Time to live; The credential expires at timestamp + ttl.
   + @param {string} [options.credential.authToken] - Credential token calculated with HMAC.
   */
  constructor(id, options) {
    super();

    this.connections = {};
    this.rooms = {};

    // messages received before connection is ready
    this._queuedMessages = {};

    if (id && id.constructor === Object) {
      options = id;
      id = undefined;
    } else if (id) {
      id = id.toString();
    }

    const defaultOptions = {
      debug: logger.LOG_LEVELS.NONE,
      secure: true,
      token: util.randomToken(),
      config: config.defaultConfig,
      turn: true,

      dispatcherSecure: config.DISPATCHER_SECURE,
      dispatcherHost: config.DISPATCHER_HOST,
      dispatcherPort: config.DISPATCHER_PORT,
    };

    this.options = Object.assign({}, defaultOptions, options);

    logger.setLogLevel(this.options.debug);

    if (!util.validateId(id)) {
      this._abort('invalid-id', `ID "${id}" is invalid`);
      return;
    }

    if (!util.validateKey(options.key)) {
      this._abort('invalid-key', `API KEY "${this.options.key}" is invalid`);
      return;
    }

    if (this.options.host === '/') {
      this.options.host = window.location.hostname;
    }
    if (options.secure === undefined && this.options.port !== 443) {
      this.options.secure = undefined;
    }
    this._initializeServerConnection(id);
  }

  /**
   * Creates new MediaConnection.
   * @param {string} peerId - The peerId of the peer you are connecting to.
   * @param {MediaStream} [stream] - The MediaStream to send to the remote peer.
   *                               If not set, the caller creates offer SDP with `sendonly` attribute.
   * @param {object} [options] - Optional arguments for the connection.
   * @param {string} [options.connectionId] - An ID to uniquely identify the connection.
   * @param {string} [options.label] - Label to easily identify the connection on either peer.
   * @param {number} [options.videoBandwidth] - A max video bandwidth(kbps)
   * @param {number} [options.audioBandwidth] - A max audio bandwidth(kbps)
   * @param {string} [options.videoCodec] - A video codec like 'H264'
   * @param {string} [options.audioCodec] - A video codec like 'PCMU'
   * @param {boolean} [options.videoReceiveEnabled] - A flag to set video recvonly
   * @param {boolean} [options.audioReceiveEnabled] - A flag to set audio recvonly
   * @return {MediaConnection} An instance of MediaConnection.
   */
  call(peerId, stream, options = {}) {
    if (!this._checkOpenStatus()) {
      return;
    }

    options.originator = true;
    options.stream = stream;
    options.pcConfig = this._pcConfig;
    const mc = new mediaConnection(peerId, options);
    mc.startConnection();
    logger.log('MediaConnection created in call method');
    this._addConnection(peerId, mc);
    return mc;
  }

  /**
   * Creates new DataConnection.
   * @param {string} peerId - User's peerId.
   * @param {Object} [options] - Optional arguments for DataConnection.
   * @param {string} [options.connectionId] - An ID to uniquely identify the connection.
   * @param {string} [options.label] - Label to easily identify the connection on either peer.
   * @param {Object} [options.dcInit] - Options passed to createDataChannel() as a RTCDataChannelInit.
   *                  See https://www.w3.org/TR/webrtc/#dom-rtcdatachannelinit
   * @param {string} [options.serialization] - How to serialize data when sending.
   *                  One of 'binary', 'json' or 'none'.
   * @return {DataConnection} An instance of DataConnection.
   */
  connect(peerId, options = {}) {
    if (!this._checkOpenStatus()) {
      return;
    }

    options.pcConfig = this._pcConfig;
    const connection = new dataConnection(peerId, options);
    connection.startConnection();
    logger.log('DataConnection created in connect method');
    this._addConnection(peerId, connection);
    return connection;
  }

  /**
   * Join fullmesh type or SFU type room that two or more users can join.
   * @param {string} roomName - The name of the room user is joining to.
   * @param {object} [roomOptions]- Optional arguments for the RTCPeerConnection.
   * @param {string} [roomOptions.mode='mesh'] - One of 'sfu' or 'mesh'.
   * @param {MediaStream} [roomOptions.stream] - Media stream user wants to emit.
   * @param {number} [roomOptions.videoBandwidth] - A max video bandwidth(kbps)
   * @param {number} [roomOptions.audioBandwidth] - A max audio bandwidth(kbps)
   * @param {string} [roomOptions.videoCodec] - A video codec like 'H264'
   * @param {string} [roomOptions.audioCodec] - A video codec like 'PCMU'
   * @param {boolean} [options.videoReceiveEnabled] - A flag to set video recvonly
   * @param {boolean} [options.audioReceiveEnabled] - A flag to set audio recvonly
   * @return {SFURoom|MeshRoom} - An instance of SFURoom or MeshRoom.
   */
  joinRoom(roomName, roomOptions = {}) {
    if (!this._checkOpenStatus()) {
      return;
    }

    if (!roomName) {
      const err = new Error('Room name must be defined.');
      err.type = 'room-error';
      logger.error(err);
      this.emit(peer_Peer.EVENTS.error.key, err);
      return null;
    }

    roomOptions.pcConfig = this._pcConfig;
    roomOptions.peerId = this.id;

    if (roomOptions.mode === 'sfu') {
      return this._initializeSfuRoom(roomName, roomOptions);
    }

    // mode is blank or 'mesh'
    return this._initializeFullMeshRoom(roomName, roomOptions);
  }

  /**
   * Returns a connection according to given peerId and connectionId.
   * @param {string} peerId - The peerId of the connection to be searched.
   * @param {Object} connectionId - An ID to uniquely identify the connection.
   * @return {MediaConnection|DataConnection} Search result.
   */
  getConnection(peerId, connectionId) {
    if (!this._checkOpenStatus()) {
      return;
    }

    if (this.connections[peerId]) {
      for (const connection of this.connections[peerId]) {
        if (connection.id === connectionId) {
          return connection;
        }
      }
    }
    return null;
  }

  /**
   * Whether the socket is connecting to the signalling server or not.
   * @type {boolean} The open status.
   */
  get open() {
    return this.socket && this.socket.isOpen;
  }

  /**
   * Close all connections and disconnect socket.
   */
  destroy() {
    this._cleanup();
    this.disconnect();
  }

  /**
   * Close socket and clean up some properties, then emit disconnect event.
   */
  disconnect() {
    if (this.open) {
      this.socket.close();
      this.emit(peer_Peer.EVENTS.disconnected.key, this.id);
    }
  }

  /**
   * Reconnect to SkyWay server. Does not work after a peer.destroy().
   */
  reconnect() {
    if (!this.open) {
      this.socket.reconnect();
    }
  }

  /**
   * Update server-side credential by sending a request in order to extend TTL.
   * @param {object} newCredential - The new credential generated by user.
   * @param {number} [newCredential.timestamp] - Current UNIX timestamp.
   + @param {number} [newCredential.ttl] - Time to live; The credential expires at timestamp + ttl.
   + @param {string} [newCredential.authToken] - Credential token calculated with HMAC.
   */
  updateCredential(newCredential) {
    this.socket.updateCredential(newCredential);
  }

  /**
   * Call Rest API and get the list of peerIds assciated with API key.
   * @param {function} cb - The callback function that is called after XHR.
   */
  listAllPeers(cb) {
    if (!this._checkOpenStatus()) {
      return;
    }

    cb = cb || function() {};
    const self = this;
    const http = new XMLHttpRequest();

    const url = `${this.socket.signalingServerUrl}/api/apikeys/${
      this.options.key
    }/clients/`;

    // If there's no ID we need to wait for one before trying to init socket.
    http.open('get', url, true);

    /* istanbul ignore next */
    http.onerror = function() {
      self._abort('server-error', 'Could not get peers from the server.');
      cb([]);
    };
    http.onreadystatechange = function() {
      if (http.readyState !== 4) {
        return;
      }
      if (http.status === 401) {
        cb([]);
        const err = new Error(
          "It doesn't look like you have permission to list peers IDs. " +
            'Please enable the SkyWay REST API on dashboard'
        );
        err.type = 'list-error';
        logger.error(err);
        self.emit(peer_Peer.EVENTS.error.key, err);
      } else if (http.status === 200) {
        cb(JSON.parse(http.responseText));
      } else {
        cb([]);
      }
    };
    http.send(null);
  }

  /**
   * Return socket open status and emit error when it's not open.
   * @return {boolean} - The socket status.
   */
  _checkOpenStatus() {
    if (!this.open) {
      this._emitNotConnectedError();
    }
    return this.open;
  }

  /**
   * Emit not connected error.
   */
  _emitNotConnectedError() {
    logger.warn(
      'You cannot connect to a new Peer because you are not connecting to SkyWay server now.' +
        'You can create a new Peer to reconnect, or call reconnect() ' +
        'on this peer if you believe its ID to still be available.'
    );

    const err = new Error(
      'Cannot connect to new Peer before connecting to SkyWay server or after disconnecting from the server.'
    );
    err.type = 'disconnected';
    logger.error(err);
    this.emit(peer_Peer.EVENTS.error.key, err);
  }

  /**
   * Creates new Socket and initalize its message handlers.
   * @param {string} id - User's peerId.
   * @private
   */
  _initializeServerConnection(id) {
    this.socket = new socket(this.options.key, {
      secure: this.options.secure,
      host: this.options.host,
      port: this.options.port,

      dispatcherSecure: this.options.dispatcherSecure,
      dispatcherHost: this.options.dispatcherHost,
      dispatcherPort: this.options.dispatcherPort,
    });

    this._setupMessageHandlers();

    this.socket.on('error', error => {
      this._abort('socket-error', error);
    });

    this.socket.on('disconnect', () => {
      // If we haven't explicitly disconnected, emit error and disconnect.
      this.disconnect();

      const err = new Error('Lost connection to server.');
      err.type = 'socket-error';
      logger.error(err);
      this.emit(peer_Peer.EVENTS.error.key, err);
    });

    this.socket.start(id, this.options.token, this.options.credential);
  }

  /**
   * Create and setup a SFURoom instance and emit SFU_JOIN message to SkyWay server.
   * @param {string} roomName - The name of the room user is joining to.
   * @param {object} [roomOptions] - Optional arguments for the RTCPeerConnection.
   * @param {object} [roomOptions.pcConfig] -  A RTCConfiguration dictionary for the RTCPeerConnection.
   * @param {string} [roomOptions.peerId] - User's peerId.
   * @param {string} [roomOptions.mode='mesh'] - One of 'sfu' or 'mesh'.
   * @param {MediaStream} [roomOptions.stream] - Media stream user wants to emit.
   * @param {number} [roomOptions.videoBandwidth] - A max video bandwidth(kbps)
   * @param {number} [roomOptions.audioBandwidth] - A max audio bandwidth(kbps)
   * @param {string} [roomOptions.videoCodec] - A video codec like 'H264'
   * @param {string} [roomOptions.audioCodec] - A video codec like 'PCMU'
   * @param {boolean} [roomOptions.videoReceiveEnabled] - A flag to set video recvonly
   * @param {boolean} [roomOptions.audioReceiveEnabled] - A flag to set audio recvonly
   * @return {SFURoom} - An instance of SFURoom.
   */
  _initializeSfuRoom(roomName, roomOptions = {}) {
    if (this.rooms[roomName]) {
      return this.rooms[roomName];
    }
    const sfuRoom = new peer_sfuRoom(roomName, this.id, roomOptions);
    this.rooms[roomName] = sfuRoom;
    this._setupSFURoomMessageHandlers(sfuRoom);

    const data = {
      roomName: roomName,
      roomType: 'sfu',
    };

    this.socket.send(config.MESSAGE_TYPES.CLIENT.ROOM_JOIN.key, data);

    return sfuRoom;
  }

  /**
   * Create and setup a MeshRoom instance and emit MESH_JOIN message to SkyWay server.
   * @param {string} roomName - The name of the room user is joining to.
   * @param {object} roomOptions - Optional arguments for the RTCPeerConnection.
   * @param {string} roomOptions.pcConfig -  A RTCConfiguration dictionary for the RTCPeerConnection.
   * @param {string} roomOptions.peerId - User's peerId.
   * @param {string} [roomOptions.mode='mesh'] - One of 'sfu' or 'mesh'.
   * @param {MediaStream} [roomOptions.stream] - Media stream user wants to emit.
   * @param {number} [roomOptions.videoBandwidth] - A max video bandwidth(kbps)
   * @param {number} [roomOptions.audioBandwidth] - A max audio bandwidth(kbps)
   * @param {string} [roomOptions.videoCodec] - A video codec like 'H264'
   * @param {string} [roomOptions.audioCodec] - A video codec like 'PCMU'
   * @param {boolean} [roomOptions.videoReceiveEnabled] - A flag to set video recvonly
   * @param {boolean} [roomOptions.audioReceiveEnabled] - A flag to set audio recvonly
   * @return {SFURoom} - An instance of MeshRoom.
   */
  _initializeFullMeshRoom(roomName, roomOptions = {}) {
    if (this.rooms[roomName]) {
      return this.rooms[roomName];
    }
    const meshRoom = new peer_meshRoom(roomName, this.id, roomOptions);
    this.rooms[roomName] = meshRoom;
    this._setupMeshRoomMessageHandlers(meshRoom);

    const data = {
      roomName: roomName,
      roomType: 'mesh',
    };

    this.socket.send(config.MESSAGE_TYPES.CLIENT.ROOM_JOIN.key, data);

    return meshRoom;
  }

  /**
   * Set up socket's message handlers.
   * @private
   */
  _setupMessageHandlers() {
    this.socket.on(config.MESSAGE_TYPES.SERVER.OPEN.key, openMessage => {
      this.id = openMessage.peerId;
      this._pcConfig = Object.assign({}, this.options.config);

      // make a copy of iceServers as Object.assign still retains the reference
      const iceServers = this._pcConfig.iceServers;
      this._pcConfig.iceServers = iceServers ? iceServers.slice() : [];

      // Set up turn credentials
      const turnCredential = openMessage.turnCredential;
      let turnUserName;
      let turnPassword;
      if (typeof turnCredential === 'object') {
        turnUserName = turnCredential.username;
        turnPassword = turnCredential.credential;
      } else if (typeof turnCredential === 'string') {
        // Handle older server versions that don't send the username
        turnUserName = `${this.options.key}$${this.id}`;
        turnPassword = turnCredential;
      }
      if (this.options.turn === true && turnUserName && turnPassword) {
        // possible turn types are turn-tcp, turns-tcp, turn-udp
        const turnCombinations = [
          { protocol: 'turn', transport: 'tcp' },
          { protocol: 'turn', transport: 'udp' },
        ];

        // Edge can not handle turns-tcp
        const browser = util.detectBrowser();
        if (browser.name !== 'edge') {
          turnCombinations.push({ protocol: 'turns', transport: 'tcp' });
        }

        for (const turnType of turnCombinations) {
          const protocol = turnType.protocol;
          const transport = turnType.transport;

          const iceServer = {
            urls: `${protocol}:${config.TURN_HOST}:${
              config.TURN_PORT
            }?transport=${transport}`,
            url: `${protocol}:${config.TURN_HOST}:${
              config.TURN_PORT
            }?transport=${transport}`,

            username: turnUserName,
            credential: turnPassword,
          };

          this._pcConfig.iceServers.push(iceServer);
        }

        logger.log('SkyWay TURN Server is available');
      } else {
        logger.log('SkyWay TURN Server is unavailable');
      }

      this.emit(peer_Peer.EVENTS.open.key, this.id);
    });

    this.socket.on(config.MESSAGE_TYPES.SERVER.ERROR.key, error => {
      const err = new Error(error.message);
      err.type = error.type;
      logger.error(err);
      this.emit(peer_Peer.EVENTS.error.key, err);
    });

    this.socket.on(config.MESSAGE_TYPES.SERVER.LEAVE.key, peerId => {
      logger.log(`Received leave message from ${peerId}`);
      this._cleanupPeer(peerId);
    });

    this.socket.on(
      config.MESSAGE_TYPES.SERVER.FORCE_CLOSE.key,
      ({ src: remoteId, connectionId }) => {
        // select a force closing connection and Close it.
        const connection = this.getConnection(remoteId, connectionId);
        if (connection) {
          // close the connection without sending FORCE_CLOSE
          connection.close(false);
        }
      }
    );

    this.socket.on(
      config.MESSAGE_TYPES.SERVER.AUTH_EXPIRES_IN.key,
      remainingSec => {
        logger.log(`Credential expires in ${remainingSec}`);
        this.emit(peer_Peer.EVENTS.expiresin.key, remainingSec);
      }
    );

    this.socket.on(config.MESSAGE_TYPES.SERVER.OFFER.key, offerMessage => {
      // handle mesh room offers
      const roomName = offerMessage.roomName;
      if (roomName) {
        const room = this.rooms[roomName];

        if (room) {
          room.handleOffer(offerMessage);
        }
        return;
      }

      // handle p2p offers
      const connectionId = offerMessage.connectionId;
      let connection = this.getConnection(offerMessage.src, connectionId);

      if (connection) {
        connection.updateOffer(offerMessage);
        return;
      }

      if (offerMessage.connectionType === 'media') {
        connection = new mediaConnection(offerMessage.src, {
          connectionId: connectionId,
          payload: offerMessage,
          metadata: offerMessage.metadata,
          originator: false,
          queuedMessages: this._queuedMessages[connectionId],
          pcConfig: this._pcConfig,
        });
        connection.startConnection();

        logger.log('MediaConnection created in OFFER');

        this._addConnection(offerMessage.src, connection);
        this.emit(peer_Peer.EVENTS.call.key, connection);
      } else if (offerMessage.connectionType === 'data') {
        connection = new dataConnection(offerMessage.src, {
          connectionId: connectionId,
          payload: offerMessage,
          metadata: offerMessage.metadata,
          label: offerMessage.label,
          dcInit: offerMessage.dcInit,
          serialization: offerMessage.serialization,
          queuedMessages: this._queuedMessages[connectionId],
          pcConfig: this._pcConfig,
        });
        connection.startConnection();

        logger.log('DataConnection created in OFFER');

        this._addConnection(offerMessage.src, connection);
        this.emit(peer_Peer.EVENTS.connection.key, connection);
      } else {
        logger.warn(
          'Received malformed connection type: ',
          offerMessage.connectionType
        );
      }

      delete this._queuedMessages[connectionId];
    });

    this.socket.on(config.MESSAGE_TYPES.SERVER.ANSWER.key, answerMessage => {
      // handle mesh room answers
      const roomName = answerMessage.roomName;
      if (roomName) {
        const room = this.rooms[roomName];

        if (room) {
          room.handleAnswer(answerMessage);
        }
        return;
      }

      // handle p2p answers
      const connection = this.getConnection(
        answerMessage.src,
        answerMessage.connectionId
      );

      if (connection) {
        connection.handleAnswer(answerMessage);
      } else {
        // Should we remove this storing
        // because answer should be handled immediately after its arrival?
        this._storeMessage(
          config.MESSAGE_TYPES.SERVER.ANSWER.key,
          answerMessage
        );
      }
    });

    this.socket.on(
      config.MESSAGE_TYPES.SERVER.CANDIDATE.key,
      candidateMessage => {
        // handle mesh room candidates
        const roomName = candidateMessage.roomName;
        if (roomName) {
          const room = this.rooms[roomName];

          if (room) {
            room.handleCandidate(candidateMessage);
          }
          return;
        }

        // handle p2p candidates
        const connection = this.getConnection(
          candidateMessage.src,
          candidateMessage.connectionId
        );

        if (connection) {
          connection.handleCandidate(candidateMessage);
        } else {
          // Store candidate in the queue so that the candidate can be added
          // after setRemoteDescription completed.
          this._storeMessage(
            config.MESSAGE_TYPES.SERVER.CANDIDATE.key,
            candidateMessage
          );
        }
      }
    );

    this.socket.on(
      config.MESSAGE_TYPES.SERVER.ROOM_USER_JOIN.key,
      roomUserJoinMessage => {
        const room = this.rooms[roomUserJoinMessage.roomName];
        if (room) {
          room.handleJoin(roomUserJoinMessage);
        }
      }
    );

    this.socket.on(
      config.MESSAGE_TYPES.SERVER.ROOM_USER_LEAVE.key,
      roomUserLeaveMessage => {
        const room = this.rooms[roomUserLeaveMessage.roomName];
        if (room) {
          room.handleLeave(roomUserLeaveMessage);
        }
      }
    );

    this.socket.on(
      config.MESSAGE_TYPES.SERVER.ROOM_DATA.key,
      roomDataMessage => {
        const room = this.rooms[roomDataMessage.roomName];
        if (room) {
          room.handleData(roomDataMessage);
        }
      }
    );

    this.socket.on(
      config.MESSAGE_TYPES.SERVER.ROOM_LOGS.key,
      roomLogMessage => {
        const room = this.rooms[roomLogMessage.roomName];
        if (room) {
          room.handleLog(roomLogMessage.log);
        }
      }
    );

    this.socket.on(
      config.MESSAGE_TYPES.SERVER.ROOM_USERS.key,
      roomUserListMessage => {
        const room = this.rooms[roomUserListMessage.roomName];
        if (room) {
          if (roomUserListMessage.type === 'media') {
            room.makeMediaConnections(roomUserListMessage.userList);
          } else {
            room.makeDataConnections(roomUserListMessage.userList);
          }
        }
      }
    );

    this.socket.on(config.MESSAGE_TYPES.SERVER.SFU_OFFER.key, offerMessage => {
      const room = this.rooms[offerMessage.roomName];
      if (room) {
        room.updateMsidMap(offerMessage.msids);
        room.handleOffer(offerMessage);
      }
    });
  }

  /**
   * Set up connection's event handlers.
   * @param {MediaConnection|DataConnection} connection - The connection to be set up.
   * @private
   */
  _setupConnectionMessageHandlers(connection) {
    connection.on(peer_connection.EVENTS.candidate.key, candidateMessage => {
      this.socket.send(
        config.MESSAGE_TYPES.CLIENT.SEND_CANDIDATE.key,
        candidateMessage
      );
    });
    connection.on(peer_connection.EVENTS.answer.key, answerMessage => {
      this.socket.send(
        config.MESSAGE_TYPES.CLIENT.SEND_ANSWER.key,
        answerMessage
      );
    });
    connection.on(peer_connection.EVENTS.offer.key, offerMessage => {
      this.socket.send(
        config.MESSAGE_TYPES.CLIENT.SEND_OFFER.key,
        offerMessage
      );
    });
    connection.on(peer_connection.EVENTS.forceClose.key, () => {
      const forceCloseMessage = {
        dst: connection.remoteId,
        connectionId: connection.id,
      };

      this.socket.send(
        config.MESSAGE_TYPES.CLIENT.SEND_FORCE_CLOSE.key,
        forceCloseMessage
      );
    });
  }

  /**
   * Set up the message event handlers for a Room
   * @param {Room} room - The room to be set up.
   * @private
   */
  _setupRoomMessageHandlers(room) {
    room.on(peer_sfuRoom.MESSAGE_EVENTS.broadcast.key, sendMessage => {
      this.socket.send(
        config.MESSAGE_TYPES.CLIENT.ROOM_SEND_DATA.key,
        sendMessage
      );
    });
    room.on(peer_sfuRoom.MESSAGE_EVENTS.getLog.key, getLogMessage => {
      this.socket.send(
        config.MESSAGE_TYPES.CLIENT.ROOM_GET_LOGS.key,
        getLogMessage
      );
    });
    room.on(peer_sfuRoom.MESSAGE_EVENTS.leave.key, leaveMessage => {
      delete this.rooms[room.name];
      this.socket.send(
        config.MESSAGE_TYPES.CLIENT.ROOM_LEAVE.key,
        leaveMessage
      );
    });
  }

  /**
   * Set up the message event handlers for an SFURoom
   * @param {SFURoom} room - The room to be set up.
   * @private
   */
  _setupSFURoomMessageHandlers(room) {
    this._setupRoomMessageHandlers(room);

    room.on(peer_sfuRoom.MESSAGE_EVENTS.offerRequest.key, sendMessage => {
      this.socket.send(
        config.MESSAGE_TYPES.CLIENT.SFU_GET_OFFER.key,
        sendMessage
      );
    });
    room.on(peer_sfuRoom.MESSAGE_EVENTS.answer.key, answerMessage => {
      this.socket.send(
        config.MESSAGE_TYPES.CLIENT.SFU_ANSWER.key,
        answerMessage
      );
    });
    room.on(peer_sfuRoom.MESSAGE_EVENTS.candidate.key, candidateMessage => {
      this.socket.send(
        config.MESSAGE_TYPES.CLIENT.SFU_CANDIDATE.key,
        candidateMessage
      );
    });
  }

  /**
   * Set up the message event handlers for a MeshRoom
   * @param {MeshRoom} room - The room to be set up.
   * @private
   */
  _setupMeshRoomMessageHandlers(room) {
    this._setupRoomMessageHandlers(room);

    room.on(peer_meshRoom.MESSAGE_EVENTS.offer.key, offerMessage => {
      this.socket.send(
        config.MESSAGE_TYPES.CLIENT.SEND_OFFER.key,
        offerMessage
      );
    });
    room.on(peer_meshRoom.MESSAGE_EVENTS.answer.key, answerMessage => {
      this.socket.send(
        config.MESSAGE_TYPES.CLIENT.SEND_ANSWER.key,
        answerMessage
      );
    });
    room.on(peer_meshRoom.MESSAGE_EVENTS.candidate.key, candidateMessage => {
      this.socket.send(
        config.MESSAGE_TYPES.CLIENT.SEND_CANDIDATE.key,
        candidateMessage
      );
    });
    room.on(peer_meshRoom.MESSAGE_EVENTS.getPeers.key, requestMessage => {
      this.socket.send(
        config.MESSAGE_TYPES.CLIENT.ROOM_GET_USERS.key,
        requestMessage
      );
    });
  }

  /**
   * Disconnect the socket and emit error.
   * @param {string} type - The type of error.
   * @param {string} message - Error description.
   * @private
   */
  _abort(type, message) {
    logger.error('Aborting!');
    this.disconnect();

    const err = new Error(message);
    err.type = type;
    logger.error(err);
    this.emit(peer_Peer.EVENTS.error.key, err);
  }

  /**
   * Add connection to connections property and set up message handlers.
   * @param {string} peerId - User's peerId.
   * @param {MediaConnection|DataConnection} connection - The connection to be added.
   * @private
   */
  _addConnection(peerId, connection) {
    if (!this.connections[peerId]) {
      this.connections[peerId] = [];
    }
    this.connections[peerId].push(connection);

    this._setupConnectionMessageHandlers(connection);
  }

  /**
   * Store a message until the connection is ready.
   * @param {string} type - The type of message. One of 'ANSWER' or 'CANDIDATE'.
   * @param {object} message - The object containing the message from remote peer.
   * @private
   */
  _storeMessage(type, message) {
    if (!this._queuedMessages[message.connectionId]) {
      this._queuedMessages[message.connectionId] = [];
    }
    this._queuedMessages[message.connectionId].push({
      type: type,
      payload: message,
    });
  }

  /**
   * Close all connections and emit close event.
   * @private
   */
  _cleanup() {
    if (this.connections) {
      for (const peer of Object.keys(this.connections)) {
        this._cleanupPeer(peer);
      }
    }
    this.emit(peer_Peer.EVENTS.close.key);
  }

  /**
   * Close the connection.
   * @param {string} peer - The peerId of the peer to be closed.
   * @private
   */
  _cleanupPeer(peer) {
    if (this.connections[peer]) {
      for (const connection of this.connections[peer]) {
        connection.close();
      }
    }
  }

  /**
   * Events the Peer class can emit.
   * @type {Enum}
   */
  static get EVENTS() {
    return PeerEvents;
  }

  /**
   * Successfully connected to signaling server.
   *
   * @event Peer#open
   * @type {string}
   */

  /**
   * Error occurred.
   *
   * @event Peer#error
   * @type {MediaStream}
   */

  /**
   * Received a call from peer.
   *
   * @event Peer#call
   * @type {MediaConnection}
   */

  /**
   * Received a connection from peer.
   *
   * @event Peer#connection
   * @type {DataConnection}
   */

  /**
   * Finished closing all connections to peers.
   *
   * @event Peer#close
   */

  /**
   * Disconnected from the signalling server.
   *
   * @event Peer#disconnected
   * @type {string}
   */
}

/* harmony default export */ var peer = __webpack_exports__["default"] = (peer_Peer);


/***/ }),

/***/ 0:
/*!********************!*\
  !*** ws (ignored) ***!
  \********************/
/*! no static exports found */
/*! ModuleConcatenation bailout: Module is not an ECMAScript module */
/***/ (function(module, exports) {

/* (ignored) */

/***/ })

/******/ })["default"];
});