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Diffstat (limited to 'node_modules/engine.io-client/engine.io.js')
| -rw-r--r-- | node_modules/engine.io-client/engine.io.js | 4660 |
1 files changed, 4660 insertions, 0 deletions
diff --git a/node_modules/engine.io-client/engine.io.js b/node_modules/engine.io-client/engine.io.js new file mode 100644 index 0000000..d2c340f --- /dev/null +++ b/node_modules/engine.io-client/engine.io.js @@ -0,0 +1,4660 @@ +(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["eio"] = factory(); + else + root["eio"] = factory(); +})(this, function() { +return /******/ (function(modules) { // webpackBootstrap +/******/ // The module cache +/******/ var installedModules = {}; + +/******/ // The require function +/******/ function __webpack_require__(moduleId) { + +/******/ // Check if module is in cache +/******/ if(installedModules[moduleId]) +/******/ return installedModules[moduleId].exports; + +/******/ // Create a new module (and put it into the cache) +/******/ var module = installedModules[moduleId] = { +/******/ exports: {}, +/******/ id: moduleId, +/******/ loaded: false +/******/ }; + +/******/ // Execute the module function +/******/ modules[moduleId].call(module.exports, module, module.exports, __webpack_require__); + +/******/ // Flag the module as loaded +/******/ module.loaded = true; + +/******/ // Return the exports of the module +/******/ return module.exports; +/******/ } + + +/******/ // expose the modules object (__webpack_modules__) +/******/ __webpack_require__.m = modules; + +/******/ // expose the module cache +/******/ __webpack_require__.c = installedModules; + +/******/ // __webpack_public_path__ +/******/ __webpack_require__.p = ""; + +/******/ // Load entry module and return exports +/******/ return __webpack_require__(0); +/******/ }) +/************************************************************************/ +/******/ ([ +/* 0 */ +/***/ function(module, exports, __webpack_require__) { + + 'use strict'; + + module.exports = __webpack_require__(1); + + /** + * Exports parser + * + * @api public + * + */ + module.exports.parser = __webpack_require__(8); + +/***/ }, +/* 1 */ +/***/ function(module, exports, __webpack_require__) { + + /* WEBPACK VAR INJECTION */(function(global) {'use strict'; + + var _typeof = typeof Symbol === "function" && typeof Symbol.iterator === "symbol" ? function (obj) { return typeof obj; } : function (obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; }; + + /** + * Module dependencies. + */ + + var transports = __webpack_require__(2); + var Emitter = __webpack_require__(18); + var debug = __webpack_require__(22)('engine.io-client:socket'); + var index = __webpack_require__(29); + var parser = __webpack_require__(8); + var parseuri = __webpack_require__(30); + var parseqs = __webpack_require__(19); + + /** + * 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 === 'undefined' ? 'undefined' : _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 : global.location && '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 || (global.location ? location.hostname : 'localhost'); + this.port = opts.port || (global.location && 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; + + // other options for Node.js client + var freeGlobal = (typeof global === 'undefined' ? 'undefined' : _typeof(global)) === 'object' && global; + if (freeGlobal.global === freeGlobal) { + 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__(7); + Socket.transports = __webpack_require__(2); + Socket.parser = __webpack_require__(8); + + /** + * 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 + }); + + 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; + }; + /* WEBPACK VAR INJECTION */}.call(exports, (function() { return this; }()))) + +/***/ }, +/* 2 */ +/***/ function(module, exports, __webpack_require__) { + + /* WEBPACK VAR INJECTION */(function(global) {'use strict'; + + /** + * Module dependencies + */ + + var XMLHttpRequest = __webpack_require__(3); + var XHR = __webpack_require__(5); + var JSONP = __webpack_require__(26); + var websocket = __webpack_require__(27); + + /** + * 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 (global.location) { + 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); + } + } + /* WEBPACK VAR INJECTION */}.call(exports, (function() { return this; }()))) + +/***/ }, +/* 3 */ +/***/ function(module, exports, __webpack_require__) { + + /* WEBPACK VAR INJECTION */(function(global) {'use strict'; + + // browser shim for xmlhttprequest module + + var hasCORS = __webpack_require__(4); + + 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 global[['Active'].concat('Object').join('X')]('Microsoft.XMLHTTP'); + } catch (e) {} + } + }; + /* WEBPACK VAR INJECTION */}.call(exports, (function() { return this; }()))) + +/***/ }, +/* 4 */ +/***/ 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; + } + + +/***/ }, +/* 5 */ +/***/ function(module, exports, __webpack_require__) { + + /* WEBPACK VAR INJECTION */(function(global) {'use strict'; + + /** + * Module requirements. + */ + + var XMLHttpRequest = __webpack_require__(3); + var Polling = __webpack_require__(6); + var Emitter = __webpack_require__(18); + var inherit = __webpack_require__(20); + var debug = __webpack_require__(22)('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 (global.location) { + var isSSL = 'https:' === location.protocol; + var port = location.port; + + // some user agents have empty `location.port` + if (!port) { + port = isSSL ? 443 : 80; + } + + this.xd = opts.hostname !== global.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) { + var contentType; + try { + contentType = xhr.getResponseHeader('Content-Type'); + } catch (e) {} + if (contentType === 'application/octet-stream') { + xhr.responseType = 'arraybuffer'; + } + } + 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 (global.document) { + 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 (global.document) { + 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 'undefined' !== typeof global.XDomainRequest && !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 (global.document) { + if (global.attachEvent) { + global.attachEvent('onunload', unloadHandler); + } else if (global.addEventListener) { + global.addEventListener('beforeunload', unloadHandler, false); + } + } + + function unloadHandler() { + for (var i in Request.requests) { + if (Request.requests.hasOwnProperty(i)) { + Request.requests[i].abort(); + } + } + } + /* WEBPACK VAR INJECTION */}.call(exports, (function() { return this; }()))) + +/***/ }, +/* 6 */ +/***/ function(module, exports, __webpack_require__) { + + 'use strict'; + + /** + * Module dependencies. + */ + + var Transport = __webpack_require__(7); + var parseqs = __webpack_require__(19); + var parser = __webpack_require__(8); + var inherit = __webpack_require__(20); + var yeast = __webpack_require__(21); + var debug = __webpack_require__(22)('engine.io-client:polling'); + + /** + * Module exports. + */ + + module.exports = Polling; + + /** + * Is XHR2 supported? + */ + + var hasXHR2 = function () { + var XMLHttpRequest = __webpack_require__(3); + 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 callback(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 callbackfn() { + 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; + }; + +/***/ }, +/* 7 */ +/***/ function(module, exports, __webpack_require__) { + + 'use strict'; + + /** + * Module dependencies. + */ + + var parser = __webpack_require__(8); + var Emitter = __webpack_require__(18); + + /** + * 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; + + // 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'); + }; + +/***/ }, +/* 8 */ +/***/ function(module, exports, __webpack_require__) { + + /* WEBPACK VAR INJECTION */(function(global) {/** + * Module dependencies. + */ + + var keys = __webpack_require__(9); + var hasBinary = __webpack_require__(10); + var sliceBuffer = __webpack_require__(12); + var after = __webpack_require__(13); + var utf8 = __webpack_require__(14); + + var base64encoder; + if (global && global.ArrayBuffer) { + base64encoder = __webpack_require__(16); + } + + /** + * 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__(17); + + /** + * 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(exports, (function() { return this; }()))) + +/***/ }, +/* 9 */ +/***/ 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; + }; + + +/***/ }, +/* 10 */ +/***/ function(module, exports, __webpack_require__) { + + /* WEBPACK VAR INJECTION */(function(global) {/* global Blob File */ + + /* + * Module requirements. + */ + + var isArray = __webpack_require__(11); + + 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(exports, (function() { return this; }()))) + +/***/ }, +/* 11 */ +/***/ function(module, exports) { + + var toString = {}.toString; + + module.exports = Array.isArray || function (arr) { + return toString.call(arr) == '[object Array]'; + }; + + +/***/ }, +/* 12 */ +/***/ 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; + }; + + +/***/ }, +/* 13 */ +/***/ 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() {} + + +/***/ }, +/* 14 */ +/***/ function(module, exports, __webpack_require__) { + + var __WEBPACK_AMD_DEFINE_RESULT__;/* WEBPACK VAR INJECTION */(function(module, global) {/*! 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 if (freeExports && !freeExports.nodeType) { + if (freeModule) { // in Node.js or RingoJS v0.8.0+ + freeModule.exports = utf8; + } else { // in Narwhal or RingoJS v0.7.0- + var object = {}; + var hasOwnProperty = object.hasOwnProperty; + for (var key in utf8) { + hasOwnProperty.call(utf8, key) && (freeExports[key] = utf8[key]); + } + } + } else { // in Rhino or a web browser + root.utf8 = utf8; + } + + }(this)); + + /* WEBPACK VAR INJECTION */}.call(exports, __webpack_require__(15)(module), (function() { return this; }()))) + +/***/ }, +/* 15 */ +/***/ function(module, exports) { + + module.exports = function(module) { + if(!module.webpackPolyfill) { + module.deprecate = function() {}; + module.paths = []; + // module.parent = undefined by default + module.children = []; + module.webpackPolyfill = 1; + } + return module; + } + + +/***/ }, +/* 16 */ +/***/ 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; + }; + })(); + + +/***/ }, +/* 17 */ +/***/ function(module, exports) { + + /* 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(exports, (function() { return this; }()))) + +/***/ }, +/* 18 */ +/***/ 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; + }; + + +/***/ }, +/* 19 */ +/***/ 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; + }; + + +/***/ }, +/* 20 */ +/***/ function(module, exports) { + + + module.exports = function(a, b){ + var fn = function(){}; + fn.prototype = b.prototype; + a.prototype = new fn; + a.prototype.constructor = a; + }; + +/***/ }, +/* 21 */ +/***/ function(module, exports) { + + '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; + + +/***/ }, +/* 22 */ +/***/ 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__(24); + 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 = [ + 'lightseagreen', + 'forestgreen', + 'goldenrod', + 'dodgerblue', + 'darkorchid', + 'crimson' + ]; + + /** + * 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; + } + + // 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(exports, __webpack_require__(23))) + +/***/ }, +/* 23 */ +/***/ 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; }; + + +/***/ }, +/* 24 */ +/***/ 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__(25); + + /** + * 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 = {}; + + /** + * Previous log timestamp. + */ + + var prevTime; + + /** + * 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) { + + 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); + + // env-specific initialization logic for debug instances + if ('function' === typeof exports.init) { + exports.init(debug); + } + + return debug; + } + + /** + * 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 split = (typeof namespaces === 'string' ? namespaces : '').split(/[\s,]+/); + var len = split.length; + + for (var 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 + '$')); + } + } + } + + /** + * Disable debug output. + * + * @api public + */ + + function disable() { + exports.enable(''); + } + + /** + * Returns true if the given mode name is enabled, false otherwise. + * + * @param {String} name + * @return {Boolean} + * @api public + */ + + function enabled(name) { + var i, len; + for (i = 0, len = exports.skips.length; i < len; i++) { + if (exports.skips[i].test(name)) { + return false; + } + } + for (i = 0, len = exports.names.length; i < len; i++) { + if (exports.names[i].test(name)) { + return true; + } + } + return false; + } + + /** + * Coerce `val`. + * + * @param {Mixed} val + * @return {Mixed} + * @api private + */ + + function coerce(val) { + if (val instanceof Error) return val.stack || val.message; + return val; + } + + +/***/ }, +/* 25 */ +/***/ function(module, exports) { + + /** + * Helpers. + */ + + var s = 1000; + var m = s * 60; + var h = m * 60; + var d = h * 24; + var y = d * 365.25; + + /** + * Parse or format the given `val`. + * + * Options: + * + * - `long` verbose formatting [false] + * + * @param {String|Number} val + * @param {Object} [options] + * @throws {Error} throw an error if val is not a non-empty string or a number + * @return {String|Number} + * @api public + */ + + module.exports = function(val, options) { + options = options || {}; + var type = typeof val; + if (type === 'string' && val.length > 0) { + return parse(val); + } else if (type === 'number' && isNaN(val) === false) { + return options.long ? fmtLong(val) : fmtShort(val); + } + throw new Error( + 'val is not a non-empty string or a valid number. val=' + + JSON.stringify(val) + ); + }; + + /** + * Parse the given `str` and return milliseconds. + * + * @param {String} str + * @return {Number} + * @api private + */ + + function parse(str) { + str = String(str); + if (str.length > 100) { + return; + } + var match = /^((?:\d+)?\.?\d+) *(milliseconds?|msecs?|ms|seconds?|secs?|s|minutes?|mins?|m|hours?|hrs?|h|days?|d|years?|yrs?|y)?$/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'; + } + + +/***/ }, +/* 26 */ +/***/ function(module, exports, __webpack_require__) { + + /* WEBPACK VAR INJECTION */(function(global) {'use strict'; + + /** + * Module requirements. + */ + + var Polling = __webpack_require__(6); + var inherit = __webpack_require__(20); + + /** + * Module exports. + */ + + module.exports = JSONPPolling; + + /** + * Cached regular expressions. + */ + + var rNewline = /\n/g; + var rEscapedNewline = /\\n/g; + + /** + * Global JSONP callbacks. + */ + + var callbacks; + + /** + * Noop. + */ + + function empty() {} + + /** + * 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 + if (!global.___eio) global.___eio = []; + callbacks = 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 (global.document && global.addEventListener) { + global.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(exports, (function() { return this; }()))) + +/***/ }, +/* 27 */ +/***/ function(module, exports, __webpack_require__) { + + /* WEBPACK VAR INJECTION */(function(global) {'use strict'; + + /** + * Module dependencies. + */ + + var Transport = __webpack_require__(7); + var parser = __webpack_require__(8); + var parseqs = __webpack_require__(19); + var inherit = __webpack_require__(20); + var yeast = __webpack_require__(21); + var debug = __webpack_require__(22)('engine.io-client:websocket'); + var BrowserWebSocket = global.WebSocket || global.MozWebSocket; + var NodeWebSocket; + if (typeof window === 'undefined') { + try { + NodeWebSocket = __webpack_require__(28); + } 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 WebSocket = BrowserWebSocket; + if (!WebSocket && typeof window === 'undefined') { + WebSocket = 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) { + WebSocket = 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 ? protocols ? new WebSocket(uri, protocols) : new WebSocket(uri) : new WebSocket(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 ? global.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 !!WebSocket && !('__initialize' in WebSocket && this.name === WS.prototype.name); + }; + /* WEBPACK VAR INJECTION */}.call(exports, (function() { return this; }()))) + +/***/ }, +/* 28 */ +/***/ function(module, exports) { + + /* (ignored) */ + +/***/ }, +/* 29 */ +/***/ 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; + }; + +/***/ }, +/* 30 */ +/***/ 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; + }; + + +/***/ } +/******/ ]) +}); +;
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