scalra/lib/socket.io-1.4.8/socket.io.js

node.js framework to prototype and scale rapidly

(function(f){if(typeof exports==="object"&&typeof module!=="undefined"){module.exports=f()}else if(typeof define==="function"&&define.amd){define([],f)}else{var g;if(typeof window!=="undefined"){g=window}else if(typeof global!=="undefined"){g=global}else if(typeof self!=="undefined"){g=self}else{g=this}g.io=f()}})(function(){var define,module,exports;return function e(t,n,r){function s(o,u){if(!n[o]){if(!t[o]){var a=typeof require=="function"&&require;if(!u&&a)return a(o,!0);if(i)return i(o,!0);var f=new Error("Cannot find module '"+o+"'");throw f.code="MODULE_NOT_FOUND",f}var l=n[o]={exports:{}};t[o][0].call(l.exports,function(e){var n=t[o][1][e];return s(n?n:e)},l,l.exports,e,t,n,r)}return n[o].exports}var i=typeof require=="function"&&require;for(var o=0;o<r.length;o++)s(r[o]);return s}({1:[function(_dereq_,module,exports){var url=_dereq_("./url");var parser=_dereq_("socket.io-parser");var Manager=_dereq_("./manager");var debug=_dereq_("debug")("socket.io-client");module.exports=exports=lookup;var cache=exports.managers={};function lookup(uri,opts){if(typeof uri=="object"){opts=uri;uri=undefined}opts=opts||{};var parsed=url(uri);var source=parsed.source;var id=parsed.id;var path=parsed.path;var sameNamespace=cache[id]&&path in cache[id].nsps;var newConnection=opts.forceNew||opts["force new connection"]||false===opts.multiplex||sameNamespace;var io;if(newConnection){debug("ignoring socket cache for %s",source);io=Manager(source,opts)}else{if(!cache[id]){debug("new io instance for %s",source);cache[id]=Manager(source,opts)}io=cache[id]}return io.socket(parsed.path)}exports.protocol=parser.protocol;exports.connect=lookup;exports.Manager=_dereq_("./manager");exports.Socket=_dereq_("./socket")},{"./manager":2,"./socket":4,"./url":5,debug:14,"socket.io-parser":40}],2:[function(_dereq_,module,exports){var eio=_dereq_("engine.io-client");var Socket=_dereq_("./socket");var Emitter=_dereq_("component-emitter");var parser=_dereq_("socket.io-parser");var on=_dereq_("./on");var bind=_dereq_("component-bind");var debug=_dereq_("debug")("socket.io-client:manager");var indexOf=_dereq_("indexof");var Backoff=_dereq_("backo2");var has=Object.prototype.hasOwnProperty;module.exports=Manager;function Manager(uri,opts){if(!(this instanceof Manager))return new Manager(uri,opts);if(uri&&"object"==typeof uri){opts=uri;uri=undefined}opts=opts||{};opts.path=opts.path||"/socket.io";this.nsps={};this.subs=[];this.opts=opts;this.reconnection(opts.reconnection!==false);this.reconnectionAttempts(opts.reconnectionAttempts||Infinity);this.reconnectionDelay(opts.reconnectionDelay||1e3);this.reconnectionDelayMax(opts.reconnectionDelayMax||5e3);this.randomizationFactor(opts.randomizationFactor||.5);this.backoff=new Backoff({min:this.reconnectionDelay(),max:this.reconnectionDelayMax(),jitter:this.randomizationFactor()});this.timeout(null==opts.timeout?2e4:opts.timeout);this.readyState="closed";this.uri=uri;this.connecting=[];this.lastPing=null;this.encoding=false;this.packetBuffer=[];this.encoder=new parser.Encoder;this.decoder=new parser.Decoder;this.autoConnect=opts.autoConnect!==false;if(this.autoConnect)this.open()}Manager.prototype.emitAll=function(){this.emit.apply(this,arguments);for(var nsp in this.nsps){if(has.call(this.nsps,nsp)){this.nsps[nsp].emit.apply(this.nsps[nsp],arguments)}}};Manager.prototype.updateSocketIds=function(){for(var nsp in this.nsps){if(has.call(this.nsps,nsp)){this.nsps[nsp].id=this.engine.id}}};Emitter(Manager.prototype);Manager.prototype.reconnection=function(v){if(!arguments.length)return this._reconnection;this._reconnection=!!v;return this};Manager.prototype.reconnectionAttempts=function(v){if(!arguments.length)return this._reconnectionAttempts;this._reconnectionAttempts=v;return this};Manager.prototype.reconnectionDelay=function(v){if(!arguments.length)return this._reconnectionDelay;this._reconnectionDelay=v;this.backoff&&this.backoff.setMin(v);return this};Manager.prototype.randomizationFactor=function(v){if(!arguments.length)return this._randomizationFactor;this._randomizationFactor=v;this.backoff&&this.backoff.setJitter(v);return this};Manager.prototype.reconnectionDelayMax=function(v){if(!arguments.length)return this._reconnectionDelayMax;this._reconnectionDelayMax=v;this.backoff&&this.backoff.setMax(v);return this};Manager.prototype.timeout=function(v){if(!arguments.length)return this._timeout;this._timeout=v;return this};Manager.prototype.maybeReconnectOnOpen=function(){if(!this.reconnecting&&this._reconnection&&this.backoff.attempts===0){this.reconnect()}};Manager.prototype.open=Manager.prototype.connect=function(fn){debug("readyState %s",this.readyState);if(~this.readyState.indexOf("open"))return this;debug("opening %s",this.uri);this.engine=eio(this.uri,this.opts);var socket=this.engine;var self=this;this.readyState="opening";this.skipReconnect=false;var openSub=on(socket,"open",function(){self.onopen();fn&&fn()});var errorSub=on(socket,"error",function(data){debug("connect_error");self.cleanup();self.readyState="closed";self.emitAll("connect_error",data);if(fn){var err=new Error("Connection error");err.data=data;fn(err)}else{self.maybeReconnectOnOpen()}});if(false!==this._timeout){var timeout=this._timeout;debug("connect attempt will timeout after %d",timeout);var timer=setTimeout(function(){debug("connect attempt timed out after %d",timeout);openSub.destroy();socket.close();socket.emit("error","timeout");self.emitAll("connect_timeout",timeout)},timeout);this.subs.push({destroy:function(){clearTimeout(timer)}})}this.subs.push(openSub);this.subs.push(errorSub);return this};Manager.prototype.onopen=function(){debug("open");this.cleanup();this.readyState="open";this.emit("open");var socket=this.engine;this.subs.push(on(socket,"data",bind(this,"ondata")));this.subs.push(on(socket,"ping",bind(this,"onping")));this.subs.push(on(socket,"pong",bind(this,"onpong")));this.subs.push(on(socket,"error",bind(this,"onerror")));this.subs.push(on(socket,"close",bind(this,"onclose")));this.subs.push(on(this.decoder,"decoded",bind(this,"ondecoded")))};Manager.prototype.onping=function(){this.lastPing=new Date;this.emitAll("ping")};Manager.prototype.onpong=function(){this.emitAll("pong",new Date-this.lastPing)};Manager.prototype.ondata=function(data){this.decoder.add(data)};Manager.prototype.ondecoded=function(packet){this.emit("packet",packet)};Manager.prototype.onerror=function(err){debug("error",err);this.emitAll("error",err)};Manager.prototype.socket=function(nsp){var socket=this.nsps[nsp];if(!socket){socket=new Socket(this,nsp);this.nsps[nsp]=socket;var self=this;socket.on("connecting",onConnecting);socket.on("connect",function(){socket.id=self.engine.id});if(this.autoConnect){onConnecting()}}function onConnecting(){if(!~indexOf(self.connecting,socket)){self.connecting.push(socket)}}return socket};Manager.prototype.destroy=function(socket){var index=indexOf(this.connecting,socket);if(~index)this.connecting.splice(index,1);if(this.connecting.length)return;this.close()};Manager.prototype.packet=function(packet){debug("writing packet %j",packet);var self=this;if(!self.encoding){self.encoding=true;this.encoder.encode(packet,function(encodedPackets){for(var i=0;i<encodedPackets.length;i++){self.engine.write(encodedPackets[i],packet.options)}self.encoding=false;self.processPacketQueue()})}else{self.packetBuffer.push(packet)}};Manager.prototype.processPacketQueue=function(){if(this.packetBuffer.length>0&&!this.encoding){var pack=this.packetBuffer.shift();this.packet(pack)}};Manager.prototype.cleanup=function(){debug("cleanup");var sub;while(sub=this.subs.shift())sub.destroy();this.packetBuffer=[];this.encoding=false;this.lastPing=null;this.decoder.destroy()};Manager.prototype.close=Manager.prototype.disconnect=function(){debug("disconnect");this.skipReconnect=true;this.reconnecting=false;if("opening"==this.readyState){this.cleanup()}this.backoff.reset();this.readyState="closed";if(this.engine)this.engine.close()};Manager.prototype.onclose=function(reason){debug("onclose");this.cleanup();this.backoff.reset();this.readyState="closed";this.emit("close",reason);if(this._reconnection&&!this.skipReconnect){this.reconnect()}};Manager.prototype.reconnect=function(){if(this.reconnecting||this.skipReconnect)return this;var self=this;if(this.backoff.attempts>=this._reconnectionAttempts){debug("reconnect failed");this.backoff.reset();this.emitAll("reconnect_failed");this.reconnecting=false}else{var delay=this.backoff.duration();debug("will wait %dms before reconnect attempt",delay);this.reconnecting=true;var timer=setTimeout(function(){if(self.skipReconnect)return;debug("attempting reconnect");self.emitAll("reconnect_attempt",self.backoff.attempts);self.emitAll("reconnecting",self.backoff.attempts);if(self.skipReconnect)return;self.open(function(err){if(err){debug("reconnect attempt error");self.reconnecting=false;self.reconnect();self.emitAll("reconnect_error",err.data)}else{debug("reconnect success");self.onreconnect()}})},delay);this.subs.push({destroy:function(){clearTimeout(timer)}})}};Manager.prototype.onreconnect=function(){var attempt=this.backoff.attempts;this.reconnecting=false;this.backoff.reset();this.updateSocketIds();this.emitAll("reconnect",attempt)}},{"./on":3,"./socket":4,backo2:8,"component-bind":11,"component-emitter":12,debug:14,"engine.io-client":16,indexof:32,"socket.io-parser":40}],3:[function(_dereq_,module,exports){module.exports=on;function on(obj,ev,fn){obj.on(ev,fn);return{destroy:function(){obj.removeListener(ev,fn)}}}},{}],4:[function(_dereq_,module,exports){var parser=_dereq_("socket.io-parser");var Emitter=_dereq_("component-emitter");var toArray=_dereq_("to-array");var on=_dereq_("./on");var bind=_dereq_("component-bind");var debug=_dereq_("debug")("socket.io-client:socket");var hasBin=_dereq_("has-binary");module.exports=exports=Socket;var events={connect:1,connect_error:1,connect_timeout:1,connecting:1,disconnect:1,error:1,reconnect:1,reconnect_attempt:1,reconnect_failed:1,reconnect_error:1,reconnecting:1,ping:1,pong:1};var emit=Emitter.prototype.emit;function Socket(io,nsp){this.io=io;this.nsp=nsp;this.json=this;this.ids=0;this.acks={};this.receiveBuffer=[];this.sendBuffer=[];this.connected=false;this.disconnected=true;if(this.io.autoConnect)this.open()}Emitter(Socket.prototype);Socket.prototype.subEvents=function(){if(this.subs)return;var io=this.io;this.subs=[on(io,"open",bind(this,"onopen")),on(io,"packet",bind(this,"onpacket")),on(io,"close",bind(this,"onclose"))]};Socket.prototype.open=Socket.prototype.connect=function(){if(this.connected)return this;this.subEvents();this.io.open();if("open"==this.io.readyState)this.onopen();this.emit("connecting");return this};Socket.prototype.send=function(){var args=toArray(arguments);args.unshift("message");this.emit.apply(this,args);return this};Socket.prototype.emit=function(ev){if(events.hasOwnProperty(ev)){emit.apply(this,arguments);return this}var args=toArray(arguments);var parserType=parser.EVENT;if(hasBin(args)){parserType=parser.BINARY_EVENT}var packet={type:parserType,data:args};packet.options={};packet.options.compress=!this.flags||false!==this.flags.compress;if("function"==typeof args[args.length-1]){debug("emitting packet with ack id %d",this.ids);this.acks[this.ids]=args.pop();packet.id=this.ids++}if(this.connected){this.packet(packet)}else{this.sendBuffer.push(packet)}delete this.flags;return this};Socket.prototype.packet=function(packet){packet.nsp=this.nsp;this.io.packet(packet)};Socket.prototype.onopen=function(){debug("transport is open - connecting");if("/"!=this.nsp){this.packet({type:parser.CONNECT})}};Socket.prototype.onclose=function(reason){debug("close (%s)",reason);this.connected=false;this.disconnected=true;delete this.id;this.emit("disconnect",reason)};Socket.prototype.onpacket=function(packet){if(packet.nsp!=this.nsp)return;switch(packet.type){case parser.CONNECT:this.onconnect();break;case parser.EVENT:this.onevent(packet);break;case parser.BINARY_EVENT:this.onevent(packet);break;case parser.ACK:this.onack(packet);break;case parser.BINARY_ACK:this.onack(packet);break;case parser.DISCONNECT:this.ondisconnect();break;case parser.ERROR:this.emit("error",packet.data);break}};Socket.prototype.onevent=function(packet){var args=packet.data||[];debug("emitting event %j",args);if(null!=packet.id){debug("attaching ack callback to event");args.push(this.ack(packet.id))}if(this.connected){emit.apply(this,args)}else{this.receiveBuffer.push(args)}};Socket.prototype.ack=function(id){var self=this;var sent=false;return function(){if(sent)return;sent=true;var args=toArray(arguments);debug("sending ack %j",args);var type=hasBin(args)?parser.BINARY_ACK:parser.ACK;self.packet({type:type,id:id,data:args})}};Socket.prototype.onack=function(packet){var ack=this.acks[packet.id];if("function"==typeof ack){debug("calling ack %s with %j",packet.id,packet.data);ack.apply(this,packet.data);delete this.acks[packet.id]}else{debug("bad ack %s",packet.id)}};Socket.prototype.onconnect=function(){this.connected=true;this.disconnected=false;this.emit("connect");this.emitBuffered()};Socket.prototype.emitBuffered=function(){var i;for(i=0;i<this.receiveBuffer.length;i++){emit.apply(this,this.receiveBuffer[i])}this.receiveBuffer=[];for(i=0;i<this.sendBuffer.length;i++){this.packet(this.sendBuffer[i])}this.sendBuffer=[]};Socket.prototype.ondisconnect=function(){debug("server disconnect (%s)",this.nsp);this.destroy();this.onclose("io server disconnect")};Socket.prototype.destroy=function(){if(this.subs){for(var i=0;i<this.subs.length;i++){this.subs[i].destroy()}this.subs=null}this.io.destroy(this)};Socket.prototype.close=Socket.prototype.disconnect=function(){if(this.connected){debug("performing disconnect (%s)",this.nsp);this.packet({type:parser.DISCONNECT})}this.destroy();if(this.connected){this.onclose("io client disconnect")}return this};Socket.prototype.compress=function(compress){this.flags=this.flags||{};this.flags.compress=compress;return this}},{"./on":3,"component-bind":11,"component-emitter":12,debug:14,"has-binary":30,"socket.io-parser":40,"to-array":43}],5:[function(_dereq_,module,exports){(function(global){var parseuri=_dereq_("parseuri");var debug=_dereq_("debug")("socket.io-client:url");module.exports=url;function url(uri,loc){var obj=uri;var loc=loc||global.location;if(null==uri)uri=loc.protocol+"//"+loc.host;if("string"==typeof uri){if("/"==uri.charAt(0)){if("/"==uri.charAt(1)){uri=loc.protocol+uri}else{uri=loc.host+uri}}if(!/^(https?|wss?):\/\//.test(uri)){debug("protocol-less url %s",uri);if("undefined"!=typeof loc){uri=loc.protocol+"//"+uri}else{uri="https://"+uri}}debug("parse %s",uri);obj=parseuri(uri)}if(!obj.port){if(/^(http|ws)$/.test(obj.protocol)){obj.port="80"}else if(/^(http|ws)s$/.test(obj.protocol)){obj.port="443"}}obj.path=obj.path||"/";var ipv6=obj.host.indexOf(":")!==-1;var host=ipv6?"["+obj.host+"]":obj.host;obj.id=obj.protocol+"://"+host+":"+obj.port;obj.href=obj.protocol+"://"+host+(loc&&loc.port==obj.port?"":":"+obj.port);return obj}}).call(this,typeof self!=="undefined"?self:typeof window!=="undefined"?window:typeof global!=="undefined"?global:{})},{debug:14,parseuri:38}],6:[function(_dereq_,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;if(err){bail=true;callback(err);callback=err_cb}else if(proxy.count===0&&!bail){callback(null,result)}}}function noop(){}},{}],7:[function(_dereq_,module,exports){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}},{}],8:[function(_dereq_,module,exports){module.exports=Backoff;function Backoff(opts){opts=opts||{};this.ms=opts.min||100;this.max=opts.max||1e4;this.factor=opts.factor||2;this.jitter=opts.jitter>0&&opts.jitter<=1?opts.jitter:0;this.attempts=0}Backoff.prototype.duration=function(){var ms=this.ms*Math.pow(this.factor,this.attempts++);if(this.jitter){var rand=Math.random();var deviation=Math.floor(rand*this.jitter*ms);ms=(Math.floor(rand*10)&1)==0?ms-deviation:ms+deviation}return Math.min(ms,this.max)|0};Backoff.prototype.reset=function(){this.attempts=0};Backoff.prototype.setMin=function(min){this.ms=min};Backoff.prototype.setMax=function(max){this.max=max};Backoff.prototype.setJitter=function(jitter){this.jitter=jitter}},{}],9:[function(_dereq_,module,exports){(function(){"use strict";var chars="ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";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*.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}})()},{}],10:[function(_dereq_,module,exports){(function(global){var BlobBuilder=global.BlobBuilder||global.WebKitBlobBuilder||global.MSBlobBuilder||global.MozBlobBuilder;var blobSupported=function(){try{var a=new Blob(["hi"]);return a.size===2}catch(e){return false}}();var blobSupportsArrayBufferView=blobSupported&&function(){try{var b=new Blob([new Uint8Array([1,2])]);return b.size===2}catch(e){return false}}();var blobBuilderSupported=BlobBuilder&&BlobBuilder.prototype.append&&BlobBuilder.prototype.getBlob;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(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}}()}).call(this,typeof self!=="undefined"?self:typeof window!=="undefined"?window:typeof global!=="undefined"?global:{})},{}],11:[function(_dereq_,module,exports){var slice=[].slice;module.exports=function(obj,fn){if("string"==typeof fn)fn=obj[fn];if("function"!=typeof fn)throw new Error("bind() requires a function");var args=slice.call(arguments,2);return function(){return fn.apply(obj,args.concat(slice.call(arguments)))}}},{}],12:[function(_dereq_,module,exports){module.exports=Emitter;function Emitter(obj){if(obj)return mixin(obj)}function mixin(obj){for(var key in Emitter.prototype){obj[key]=Emitter.prototype[key]}return obj}Emitter.prototype.on=Emitter.prototype.addEventListener=function(event,fn){this._callbacks=this._callbacks||{};(this._callbacks["$"+event]=this._callbacks["$"+event]||[]).push(fn);return this};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};Emitter.prototype.off=Emitter.prototype.removeListener=Emitter.prototype.removeAllListeners=Emitter.prototype.removeEventListener=function(event,fn){this._callbacks=this._callbacks||{};if(0==arguments.length){this._callbacks={};return this}var callbacks=this._callbacks["$"+event];if(!callbacks)return this;if(1==arguments.length){delete this._callbacks["$"+event];return this}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};Emitter.prototype.emit=function(event){this._callbacks=this._callbacks||{};var args=[].slice.call(arguments,1),callbacks=this._callbacks["$"+event];if(callbacks){callbacks=callbacks.slice(0);for(var i=0,len=callbacks.length;i<len;++i){callbacks[i].apply(this,args)}}return this};Emitter.prototype.listeners=function(event){this._callbacks=this._callbacks||{};return this._callbacks["$"+event]||[]};Emitter.prototype.hasListeners=function(event){return!!this.listeners(event).length}},{}],13:[function(_dereq_,module,exports){module.exports=function(a,b){var fn=function(){};fn.prototype=b.prototype;a.prototype=new fn;a.prototype.constructor=a}},{}],14:[function(_dereq_,module,exports){exports=module.exports=_dereq_("./debug");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();exports.colors=["lightseagreen","forestgreen","goldenrod","dodgerblue","darkorchid","crimson"];function useColors(){return"WebkitAppearance"in document.documentElement.style||window.console&&(console.firebug||console.exception&&console.table)||navigator.userAgent.toLowerCase().match(/firefox\/(\d+)/)&&parseInt(RegExp.$1,10)>=31}exports.formatters.j=function(v){return JSON.stringify(v)};function formatArgs(){var args=arguments;var useColors=this.useColors;args[0]=(useColors?"%c":"")+this.namespace+(useColors?" %c":" ")+args[0]+(useColors?"%c ":" ")+"+"+exports.humanize(this.diff);if(!useColors)return args;var c="color: "+this.color;args=[args[0],c,"color: inherit"].concat(Array.prototype.slice.call(args,1));var index=0;var lastC=0;args[0].replace(/%[a-z%]/g,function(match){if("%%"===match)return;index++;if("%c"===match){lastC=index}});args.splice(lastC,0,c);return args}function log(){return"object"===typeof console&&console.log&&Function.prototype.apply.call(console.log,console,arguments)}function save(namespaces){try{if(null==namespaces){exports.storage.removeItem("debug")}else{exports.storage.debug=namespaces}}catch(e){}}function load(){var r;try{r=exports.storage.debug}catch(e){}return r}exports.enable(load());function localstorage(){try{return window.localStorage}catch(e){}}},{"./debug":15}],15:[function(_dereq_,module,exports){exports=module.exports=debug;exports.coerce=coerce;exports.disable=disable;exports.enable=enable;exports.enabled=enabled;exports.humanize=_dereq_("ms");exports.names=[];exports.skips=[];exports.formatters={};var prevColor=0;var prevTime;function selectColor(){return exports.colors[prevColor++%exports.colors.length]}function debug(namespace){function disabled(){}disabled.enabled=false;function enabled(){var self=enabled;var curr=+new Date;var ms=curr-(prevTime||curr);self.diff=ms;self.prev=prevTime;self.curr=curr;prevTime=curr;if(null==self.useColors)self.useColors=exports.useColors();if(null==self.color&&self.useColors)self.color=selectColor();var args=Array.prototype.slice.call(arguments);args[0]=exports.coerce(args[0]);if("string"!==typeof args[0]){args=["%o"].concat(args)}var index=0;args[0]=args[0].replace(/%([a-z%])/g,function(match,format){if(match==="%%")return match;index++;var formatter=exports.formatters[format];if("function"===typeof formatter){var val=args[index];match=formatter.call(self,val);args.splice(index,1);index--}return match});if("function"===typeof exports.formatArgs){args=exports.formatArgs.apply(self,args)}var logFn=enabled.log||exports.log||console.log.bind(console);logFn.apply(self,args)}enabled.enabled=true;var fn=exports.enabled(namespace)?enabled:disabled;fn.namespace=namespace;return fn}function enable(namespaces){exports.save(namespaces);var split=(namespaces||"").split(/[\s,]+/);var len=split.length;for(var i=0;i<len;i++){if(!split[i])continue;namespaces=split[i].replace(/\*/g,".*?");if(namespaces[0]==="-"){exports.skips.push(new RegExp("^"+namespaces.substr(1)+"$"))}else{exports.names.push(new RegExp("^"+namespaces+"$"))}}}function disable(){exports.enable("")}function enabled(name){var i,len;for(i=0,len=exports.skips.length;i<len;i++){if(exports.skips[i].test(name)){return false}}for(i=0,len=exports.names.length;i<len;i++){if(exports.names[i].test(name)){return true}}return false}function coerce(val){if(val instanceof Error)return val.stack||val.message;return val}},{ms:35}],16:[function(_dereq_,module,exports){module.exports=_dereq_("./lib/")},{"./lib/":17}],17:[function(_dereq_,module,exports){module.exports=_dereq_("./socket");module.exports.parser=_dereq_("engine.io-parser")},{"./socket":18,"engine.io-parser":27}],18:[function(_dereq_,module,exports){(function(global){var transports=_dereq_("./transports");var Emitter=_dereq_("component-emitter");var debug=_dereq_("debug")("engine.io-client:socket");var index=_dereq_("indexof");var parser=_dereq_("engine.io-parser");var parseuri=_dereq_("parseuri");var parsejson=_dereq_("parsejson");var parseqs=_dereq_("parseqs");module.exports=Socket;function noop(){}function Socket(uri,opts){if(!(this instanceof Socket))return new Socket(uri,opts);opts=opts||{};if(uri&&"object"==typeof uri){opts=uri;uri=null}if(uri){uri=parseuri(uri);opts.hostname=uri.host;opts.secure=uri.protocol=="https"||uri.protocol=="wss";opts.port=uri.port;if(uri.query)opts.query=uri.query}else if(opts.host){opts.hostname=parseuri(opts.host).host}this.secure=null!=opts.secure?opts.secure:global.location&&"https:"==location.protocol;if(opts.hostname&&!opts.port){opts.port=this.secure?"443":"80"}this.agent=opts.agent||false;this.hostname=opts.hostname||(global.location?location.hostname:"localhost");this.port=opts.port||(global.location&&location.port?location.port:this.secure?443:80);this.query=opts.query||{};if("string"==typeof this.query)this.query=parseqs.decode(this.query);this.upgrade=false!==opts.upgrade;this.path=(opts.path||"/engine.io").replace(/\/$/,"")+"/";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.readyState="";this.writeBuffer=[];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}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;var freeGlobal=typeof global=="object"&&global;if(freeGlobal.global===freeGlobal){if(opts.extraHeaders&&Object.keys(opts.extraHeaders).length>0){this.extraHeaders=opts.extraHeaders}}this.open()}Socket.priorWebsocketSuccess=false;Emitter(Socket.prototype);Socket.protocol=parser.protocol;Socket.Socket=Socket;Socket.Transport=_dereq_("./transport");Socket.transports=_dereq_("./transports");Socket.parser=_dereq_("engine.io-parser");Socket.prototype.createTransport=function(name){debug('creating transport "%s"',name);var query=clone(this.query);query.EIO=parser.protocol;query.transport=name;if(this.id)query.sid=this.id;var transport=new transports[name]({agent:this.agent,hostname:this.hostname,port:this.port,secure:this.secure,path:this.path,query:query,forceJSONP:this.forceJSONP,jsonp:this.jsonp,forceBase64:this.forceBase64,enablesXDR:this.enablesXDR,timestampRequests:this.timestampRequests,timestampParam:this.timestampParam,policyPort:this.policyPort,socket:this,pfx:this.pfx,key:this.key,passphrase:this.passphrase,cert:this.cert,ca:this.ca,ciphers:this.ciphers,rejectUnauthorized:this.rejectUnauthorized,perMessageDeflate:this.perMessageDeflate,extraHeaders:this.extraHeaders});return transport};function clone(obj){var o={};for(var i in obj){if(obj.hasOwnProperty(i)){o[i]=obj[i]}}return o}Socket.prototype.open=function(){var transport;if(this.rememberUpgrade&&Socket.priorWebsocketSuccess&&this.transports.indexOf("websocket")!=-1){transport="websocket"}else if(0===this.transports.length){var self=this;setTimeout(function(){self.emit("error","No transports available")},0);return}else{transport=this.transports[0]}this.readyState="opening";try{transport=this.createTransport(transport)}catch(e){this.transports.shift();this.open();return}transport.open();this.setTransport(transport)};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()}this.transport=transport;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")})};Socket.prototype.probe=function(name){debug('probing transport "%s"',name);var transport=this.createTransport(name,{probe:1}),failed=false,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;failed=true;cleanup();transport.close();transport=null}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")}function onclose(){onerror("socket closed")}function onupgrade(to){if(transport&&to.name!=transport.name){debug('"%s" works - aborting "%s"',to.name,transport.name);freezeTransport()}}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()};Socket.prototype.onOpen=function(){debug("socket open");this.readyState="open";Socket.priorWebsocketSuccess="websocket"==this.transport.name;this.emit("open");this.flush();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])}}};Socket.prototype.onPacket=function(packet){if("opening"==this.readyState||"open"==this.readyState){debug('socket receive: type "%s", data "%s"',packet.type,packet.data);this.emit("packet",packet);this.emit("heartbeat");switch(packet.type){case"open":this.onHandshake(parsejson(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)}};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();if("closed"==this.readyState)return;this.setPing();this.removeListener("heartbeat",this.onHeartbeat);this.on("heartbeat",this.onHeartbeat)};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)};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)};Socket.prototype.ping=function(){var self=this;this.sendPacket("ping",function(){self.emit("ping")})};Socket.prototype.onDrain=function(){this.writeBuffer.splice(0,this.prevBufferLen);this.prevBufferLen=0;if(0===this.writeBuffer.length){this.emit("drain")}else{this.flush()}};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);this.prevBufferLen=this.writeBuffer.length;this.emit("flush")}};Socket.prototype.write=Socket.prototype.send=function(msg,options,fn){this.sendPacket("message",msg,options,fn);return this};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()};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(){self.once("upgrade",cleanupAndClose);self.once("upgradeError",cleanupAndClose)}return this};Socket.prototype.onError=function(err){debug("socket error %j",err);Socket.priorWebsocketSuccess=false;this.emit("error",err);this.onClose("transport error",err)};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;clearTimeout(this.pingIntervalTimer);clearTimeout(this.pingTimeoutTimer);this.transport.removeAllListeners("close");this.transport.close();this.transport.removeAllListeners();this.readyState="closed";this.id=null;this.emit("close",reason,desc);self.writeBuffer=[];self.prevBufferLen=0}};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}}).call(this,typeof self!=="undefined"?self:typeof window!=="undefined"?window:typeof global!=="undefined"?global:{})},{"./transport":19,"./transports":20,"component-emitter":26,debug:14,"engine.io-parser":27,indexof:32,parsejson:36,parseqs:37,parseuri:38}],19:[function(_dereq_,module,exports){var parser=_dereq_("engine.io-parser");var Emitter=_dereq_("component-emitter");module.exports=Transport;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;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.extraHeaders=opts.extraHeaders}Emitter(Transport.prototype);Transport.prototype.onError=function(msg,desc){var err=new Error(msg);err.type="TransportError";err.description=desc;this.emit("error",err);return this};Transport.prototype.open=function(){if("closed"==this.readyState||""==this.readyState){this.readyState="opening";this.doOpen()}return this};Transport.prototype.close=function(){if("opening"==this.readyState||"open"==this.readyState){this.doClose();this.onClose()}return this};Transport.prototype.send=function(packets){if("open"==this.readyState){this.write(packets)}else{throw new Error("Transport not open")}};Transport.prototype.onOpen=function(){this.readyState="open";this.writable=true;this.emit("open")};Transport.prototype.onData=function(data){var packet=parser.decodePacket(data,this.socket.binaryType);this.onPacket(packet)};Transport.prototype.onPacket=function(packet){this.emit("packet",packet)};Transport.prototype.onClose=function(){this.readyState="closed";this.emit("close")}},{"component-emitter":26,"engine.io-parser":27}],20:[function(_dereq_,module,exports){(function(global){var XMLHttpRequest=_dereq_("xmlhttprequest-ssl");var XHR=_dereq_("./polling-xhr");var JSONP=_dereq_("./polling-jsonp");var websocket=_dereq_("./websocket");exports.polling=polling;exports.websocket=websocket;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;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)}}}).call(this,typeof self!=="undefined"?self:typeof window!=="undefined"?window:typeof global!=="undefined"?global:{})},{"./polling-jsonp":21,"./polling-xhr":22,"./websocket":24,"xmlhttprequest-ssl":25}],21:[function(_dereq_,module,exports){(function(global){var Polling=_dereq_("./polling");var inherit=_dereq_("component-inherit");module.exports=JSONPPolling;var rNewline=/\n/g;var rEscapedNewline=/\\n/g;var callbacks;var index=0;function empty(){}function JSONPPolling(opts){Polling.call(this,opts);this.query=this.query||{};if(!callbacks){if(!global.___eio)global.___eio=[];callbacks=global.___eio}this.index=callbacks.length;var self=this;callbacks.push(function(msg){self.onData(msg)});this.query.j=this.index;if(global.document&&global.addEventListener){global.addEventListener("beforeunload",function(){if(self.script)self.script.onerror=empty},false)}}inherit(JSONPPolling,Polling);JSONPPolling.prototype.supportsBinary=false;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)};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)}};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{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();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}}}).call(this,typeof self!=="undefined"?self:typeof window!=="undefined"?window:typeof global!=="undefined"?global:{})},{"./polling":23,"component-inherit":13}],22:[function(_dereq_,module,exports){(function(global){var XMLHttpRequest=_dereq_("xmlhttprequest-ssl");var Polling=_dereq_("./polling");var Emitter=_dereq_("component-emitter");var inherit=_dereq_("component-inherit");var debug=_dereq_("debug")("engine.io-client:polling-xhr");module.exports=XHR;module.exports.Request=Request;function empty(){}function XHR(opts){Polling.call(this,opts);if(global.location){var isSSL="https:"==location.protocol;var port=location.port;if(!port){port=isSSL?443:80}this.xd=opts.hostname!=global.location.hostname||port!=opts.port;this.xs=opts.secure!=isSSL}else{this.extraHeaders=opts.extraHeaders}}inherit(XHR,Polling);XHR.prototype.supportsBinary=true;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;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.extraHeaders=this.extraHeaders;return new Request(opts)};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};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};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.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.extraHeaders=opts.extraHeaders;this.create()}Emitter(Request.prototype);Request.prototype.create=function(){var opts={agent:this.agent,xdomain:this.xd,xscheme:this.xs,enablesXDR:this.enablesXDR};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(true);for(var i in this.extraHeaders){if(this.extraHeaders.hasOwnProperty(i)){xhr.setRequestHeader(i,this.extraHeaders[i])}}}}catch(e){}if(this.supportsBinary){xhr.responseType="arraybuffer"}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){}}if("withCredentials"in xhr){xhr.withCredentials=true}if(this.hasXDR()){xhr.onload=function(){self.onLoad()};xhr.onerror=function(){self.onError(xhr.responseText)}}else{xhr.onreadystatechange=function(){if(4!=xhr.readyState)return;if(200==xhr.status||1223==xhr.status){self.onLoad()}else{setTimeout(function(){self.onError(xhr.status)},0)}}}debug("xhr data %s",this.data);xhr.send(this.data)}catch(e){setTimeout(function(){self.onError(e)},0);return}if(global.document){this.index=Request.requestsCount++;Request.requests[this.index]=this}};Request.prototype.onSuccess=function(){this.emit("success");this.cleanup()};Request.prototype.onData=function(data){this.emit("data",data);this.onSuccess()};Request.prototype.onError=function(err){this.emit("error",err);this.cleanup(true)};Request.prototype.cleanup=function(fromError){if("undefined"==typeof this.xhr||null===this.xhr){return}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};Request.prototype.onLoad=function(){var data;try{var contentType;try{contentType=this.xhr.getResponseHeader("Content-Type").split(";")[0]}catch(e){}if(contentType==="application/octet-stream"){data=this.xhr.response}else{if(!this.supportsBinary){data=this.xhr.responseText}else{try{data=String.fromCharCode.apply(null,new Uint8Array(this.xhr.response))}catch(e){var ui8Arr=new Uint8Array(this.xhr.response);var dataArray=[];for(var idx=0,length=ui8Arr.length;idx<length;idx++){dataArray.push(ui8Arr[idx])}data=String.fromCharCode.apply(null,dataArray)}}}}catch(e){this.onError(e)}if(null!=data){this.onData(data)}};Request.prototype.hasXDR=function(){return"undefined"!==typeof global.XDomainRequest&&!this.xs&&this.enablesXDR};Request.prototype.abort=function(){this.cleanup()};if(global.document){Request.requestsCount=0;Request.requests={};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()}}}}).call(this,typeof self!=="undefined"?self:typeof window!=="undefined"?window:typeof global!=="undefined"?global:{})},{"./polling":23,"component-emitter":26,"component-inherit":13,debug:14,"xmlhttprequest-ssl":25}],23:[function(_dereq_,module,exports){var Transport=_dereq_("../transport");var parseqs=_dereq_("parseqs");var parser=_dereq_("engine.io-parser");var inherit=_dereq_("component-inherit");var yeast=_dereq_("yeast");var debug=_dereq_("debug")("engine.io-client:polling");module.exports=Polling;var hasXHR2=function(){var XMLHttpRequest=_dereq_("xmlhttprequest-ssl");var xhr=new XMLHttpRequest({xdomain:false});return null!=xhr.responseType}();function Polling(opts){var forceBase64=opts&&opts.forceBase64;if(!hasXHR2||forceBase64){this.supportsBinary=false}Transport.call(this,opts)}inherit(Polling,Transport);Polling.prototype.name="polling";Polling.prototype.doOpen=function(){this.poll()};Polling.prototype.pause=function(onPause){var pending=0;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()}};Polling.prototype.poll=function(){debug("polling");this.polling=true;this.doPoll();this.emit("poll")};Polling.prototype.onData=function(data){var self=this;debug("polling got data %s",data);var callback=function(packet,index,total){if("opening"==self.readyState){self.onOpen()}if("close"==packet.type){self.onClose();return false}self.onPacket(packet)};parser.decodePayload(data,this.socket.binaryType,callback);if("closed"!=this.readyState){this.polling=false;this.emit("pollComplete");if("open"==th