socket.io.min.js

/* Socket.IO.min 0.6.2 @author Guillermo Rauch <guillermo@learnboost.com>, @license The MIT license., @copyright Copyright (c) 2010 LearnBoost <dev@learnboost.com> */
var io=this.io={version:"0.6.2",setPath:function(a){window.console&&console.error&&console.error("io.setPath will be removed. Please set the variable WEB_SOCKET_SWF_LOCATION pointing to WebSocketMain.swf"),this.path=/\/$/.test(a)?a:a+"/",WEB_SOCKET_SWF_LOCATION=a+"lib/vendor/web-socket-js/WebSocketMain.swf"}};"jQuery"in this&&(jQuery.io=this.io),typeof window!="undefined"&&typeof WEB_SOCKET_SWF_LOCATION=="undefined"&&(WEB_SOCKET_SWF_LOCATION="/socket.io/lib/vendor/web-socket-js/WebSocketMain.swf"),function(){var a=this.io,b=!1;a.util={ios:!1,load:function(a){if(/loaded|complete/.test(document.readyState)||b)return a();"attachEvent"in window?window.attachEvent("onload",a):window.addEventListener("load",a,!1)},inherit:function(a,b){for(var c in b.prototype)a.prototype[c]=b.prototype[c]},indexOf:function(a,b,c){for(var d=a.length,e=c<0?Math.max(0,d+c):c||0;e<d;e++)if(a[e]===b)return e;return-1},isArray:function(a){return Object.prototype.toString.call(a)==="[object Array]"},merge:function(a,b){for(var c in b)b.hasOwnProperty(c)&&(a[c]=b[c])}},a.util.ios=/iphone|ipad/i.test(navigator.userAgent),a.util.android=/android/i.test(navigator.userAgent),a.util.opera=/opera/i.test(navigator.userAgent),a.util.load(function(){b=!0})}(),function(){var a=this.io,b="~m~",c=function(a){if(Object.prototype.toString.call(a)=="[object Object]"){if(!("JSON"in window)){"console"in window&&console.error&&console.error("Trying to encode as JSON, but JSON.stringify is missing.");return'{ "$error": "Invalid message" }'}return"~j~"+JSON.stringify(a)}return String(a)};Transport=a.Transport=function(b,c){this.base=b,this.options={timeout:15e3},a.util.merge(this.options,c)},Transport.prototype.send=function(){throw new Error("Missing send() implementation")},Transport.prototype.connect=function(){throw new Error("Missing connect() implementation")},Transport.prototype.disconnect=function(){throw new Error("Missing disconnect() implementation")},Transport.prototype._encode=function(d){var e="",f,d=a.util.isArray(d)?d:[d];for(var g=0,h=d.length;g<h;g++)f=d[g]===null||d[g]===undefined?"":c(d[g]),e+=b+f.length+b+f;return e},Transport.prototype._decode=function(a){var c=[],d,e;do{if(a.substr(0,3)!==b)return c;a=a.substr(3),d="",e="";for(var f=0,g=a.length;f<g;f++){e=Number(a.substr(f,1));if(a.substr(f,1)==e)d+=e;else{a=a.substr(d.length+b.length),d=Number(d);break}}c.push(a.substr(0,d)),a=a.substr(d)}while(a!=="");return c},Transport.prototype._onData=function(a){this._setTimeout();var b=this._decode(a);if(b&&b.length)for(var c=0,d=b.length;c<d;c++)this._onMessage(b[c])},Transport.prototype._setTimeout=function(){var a=this;this._timeout&&clearTimeout(this._timeout),this._timeout=setTimeout(function(){a._onTimeout()},this.options.timeout)},Transport.prototype._onTimeout=function(){this._onDisconnect()},Transport.prototype._onMessage=function(a){this.sessionid?a.substr(0,3)=="~h~"?this._onHeartbeat(a.substr(3)):a.substr(0,3)=="~j~"?this.base._onMessage(JSON.parse(a.substr(3))):this.base._onMessage(a):(this.sessionid=a,this._onConnect())},Transport.prototype._onHeartbeat=function(a){this.send("~h~"+a)},Transport.prototype._onConnect=function(){this.connected=!0,this.connecting=!1,this.base._onConnect(),this._setTimeout()},Transport.prototype._onDisconnect=function(){this.connecting=!1,this.connected=!1,this.sessionid=null,this.base._onDisconnect()},Transport.prototype._prepareUrl=function(){return(this.base.options.secure?"https":"http")+"://"+this.base.host+":"+this.base.options.port+"/"+this.base.options.resource+"/"+this.type+(this.sessionid?"/"+this.sessionid:"/")}}(),function(){var a=this.io,b=new Function,c=function(){if(!("XMLHttpRequest"in window))return!1;var a=new XMLHttpRequest;return a.withCredentials!=undefined}(),d=function(a){if("XDomainRequest"in window&&a)return new XDomainRequest;if("XMLHttpRequest"in window&&(!a||c))return new XMLHttpRequest;if(!a){try{var b=new ActiveXObject("MSXML2.XMLHTTP");return b}catch(d){}try{var e=new ActiveXObject("Microsoft.XMLHTTP");return e}catch(d){}}return!1},e=a.Transport.XHR=function(){a.Transport.apply(this,arguments),this._sendBuffer=[]};a.util.inherit(e,a.Transport),e.prototype.connect=function(){this._get();return this},e.prototype._checkSend=function(){if(!this._posting&&this._sendBuffer.length){var a=this._encode(this._sendBuffer);this._sendBuffer=[],this._send(a)}},e.prototype.send=function(b){a.util.isArray(b)?this._sendBuffer.push.apply(this._sendBuffer,b):this._sendBuffer.push(b),this._checkSend();return this},e.prototype._send=function(a){var c=this;this._posting=!0,this._sendXhr=this._request("send","POST"),this._sendXhr.onreadystatechange=function(){var a;if(c._sendXhr.readyState==4){c._sendXhr.onreadystatechange=b;try{a=c._sendXhr.status}catch(d){}c._posting=!1,a==200?c._checkSend():c._onDisconnect()}},this._sendXhr.send("data="+encodeURIComponent(a))},e.prototype.disconnect=function(){this._onDisconnect();return this},e.prototype._onDisconnect=function(){if(this._xhr){this._xhr.onreadystatechange=b;try{this._xhr.abort()}catch(c){}this._xhr=null}if(this._sendXhr){this._sendXhr.onreadystatechange=b;try{this._sendXhr.abort()}catch(c){}this._sendXhr=null}this._sendBuffer=[],a.Transport.prototype._onDisconnect.call(this)},e.prototype._request=function(a,b,c){var e=d(this.base._isXDomain());c&&(e.multipart=!0),e.open(b||"GET",this._prepareUrl()+(a?"/"+a:"")),b=="POST"&&"setRequestHeader"in e&&e.setRequestHeader("Content-type","application/x-www-form-urlencoded; charset=utf-8");return e},e.check=function(a){try{if(d(a))return!0}catch(b){}return!1},e.xdomainCheck=function(){return e.check(!0)},e.request=d}(),function(){var a=this.io,b=a.Transport.websocket=function(){a.Transport.apply(this,arguments)};a.util.inherit(b,a.Transport),b.prototype.type="websocket",b.prototype.connect=function(){var a=this;this.socket=new WebSocket(this._prepareUrl()),this.socket.onmessage=function(b){a._onData(b.data)},this.socket.onclose=function(b){a._onClose()},this.socket.onerror=function(b){a._onError(b)};return this},b.prototype.send=function(a){this.socket&&this.socket.send(this._encode(a));return this},b.prototype.disconnect=function(){this.socket&&this.socket.close();return this},b.prototype._onClose=function(){this._onDisconnect();return this},b.prototype._onError=function(a){this.base.emit("error",[a])},b.prototype._prepareUrl=function(){return(this.base.options.secure?"wss":"ws")+"://"+this.base.host+":"+this.base.options.port+"/"+this.base.options.resource+"/"+this.type+(this.sessionid?"/"+this.sessionid:"")},b.check=function(){return"WebSocket"in window&&WebSocket.prototype&&WebSocket.prototype.send&&!!WebSocket.prototype.send.toString().match(/native/i)&&typeof WebSocket!="undefined"},b.xdomainCheck=function(){return!0}}(),function(){var a=this.io,b=a.Transport.flashsocket=function(){a.Transport.websocket.apply(this,arguments)};a.util.inherit(b,a.Transport.websocket),b.prototype.type="flashsocket",b.prototype.connect=function(){var b=this,c=arguments;WebSocket.__addTask(function(){a.Transport.websocket.prototype.connect.apply(b,c)});return this},b.prototype.send=function(){var b=this,c=arguments;WebSocket.__addTask(function(){a.Transport.websocket.prototype.send.apply(b,c)});return this},b.check=function(){if(typeof WebSocket=="undefined"||!("__addTask"in WebSocket))return!1;if(a.util.opera)return!1;if("navigator"in window&&"plugins"in navigator&&navigator.plugins["Shockwave Flash"])return!!navigator.plugins["Shockwave Flash"].description;if("ActiveXObject"in window)try{return!!(new ActiveXObject("ShockwaveFlash.ShockwaveFlash")).GetVariable("$version")}catch(b){}return!1},b.xdomainCheck=function(){return!0}}(),function(){var a=this.io,b=a.Transport.htmlfile=function(){a.Transport.XHR.apply(this,arguments)};a.util.inherit(b,a.Transport.XHR),b.prototype.type="htmlfile",b.prototype._get=function(){var a=this;this._open(),window.attachEvent("onunload",function(){a._destroy()})},b.prototype._open=function(){this._doc=new ActiveXObject("htmlfile"),this._doc.open(),this._doc.write("<html></html>"),this._doc.parentWindow.s=this,this._doc.close();var a=this._doc.createElement("div");this._doc.body.appendChild(a),this._iframe=this._doc.createElement("iframe"),a.appendChild(this._iframe),this._iframe.src=this._prepareUrl()+"/"+ +(new Date)},b.prototype._=function(a,b){this._onData(a);var c=b.getElementsByTagName("script")[0];c.parentNode.removeChild(c)},b.prototype._destroy=function(){this._iframe&&(this._iframe.src="about:blank",this._doc=null,CollectGarbage())},b.prototype.disconnect=function(){this._destroy();return a.Transport.XHR.prototype.disconnect.call(this)},b.check=function(){if("ActiveXObject"in window)try{var b=new ActiveXObject("htmlfile");return b&&a.Transport.XHR.check()}catch(c){}return!1},b.xdomainCheck=function(){return!1}}(),function(){var a=this.io,b=a.Transport["xhr-multipart"]=function(){a.Transport.XHR.apply(this,arguments)};a.util.inherit(b,a.Transport.XHR),b.prototype.type="xhr-multipart",b.prototype._get=function(){var a=this;this._xhr=this._request("","GET",!0),this._xhr.onreadystatechange=function(){a._xhr.readyState==4&&a._onData(a._xhr.responseText)},this._xhr.send(null)},b.check=function(){return"XMLHttpRequest"in window&&"prototype"in XMLHttpRequest&&"multipart"in XMLHttpRequest.prototype},b.xdomainCheck=function(){return!0}}(),function(){var a=this.io,b=new Function,c=a.Transport["xhr-polling"]=function(){a.Transport.XHR.apply(this,arguments)};a.util.inherit(c,a.Transport.XHR),c.prototype.type="xhr-polling",c.prototype.connect=function(){if(a.util.ios||a.util.android){var b=this;a.util.load(function(){setTimeout(function(){a.Transport.XHR.prototype.connect.call(b)},10)})}else a.Transport.XHR.prototype.connect.call(this)},c.prototype._get=function(){var a=this;this._xhr=this._request(+(new Date),"GET"),this._xhr.onreadystatechange=function(){var c;if(a._xhr.readyState==4){a._xhr.onreadystatechange=b;try{c=a._xhr.status}catch(d){}c==200?(a._onData(a._xhr.responseText),a._get()):a._onDisconnect()}},this._xhr.send(null)},c.check=function(){return a.Transport.XHR.check()},c.xdomainCheck=function(){return a.Transport.XHR.xdomainCheck()}}(),function(){var a=this.io;a.JSONP=[],JSONPPolling=a.Transport["jsonp-polling"]=function(){a.Transport.XHR.apply(this,arguments),this._insertAt=document.getElementsByTagName("script")[0],this._index=a.JSONP.length,a.JSONP.push(this)},a.util.inherit(JSONPPolling,a.Transport["xhr-polling"]),JSONPPolling.prototype.type="jsonp-polling",JSONPPolling.prototype._send=function(a){function h(){b._iframe&&b._form.removeChild(b._iframe);try{f=document.createElement('<iframe name="'+b._iframeId+'">')}catch(a){f=document.createElement("iframe"),f.name=b._iframeId}f.id=b._iframeId,b._form.appendChild(f),b._iframe=f}function g(){h(),b._posting=!1,b._checkSend()}var b=this;if(!("_form"in this)){var c=document.createElement("FORM"),d=document.createElement("TEXTAREA"),e=this._iframeId="socket_io_iframe_"+this._index,f;c.style.position="absolute",c.style.top="-1000px",c.style.left="-1000px",c.target=e,c.method="POST",c.action=this._prepareUrl()+"/"+ +(new Date)+"/"+this._index,d.name="data",c.appendChild(d),this._insertAt.parentNode.insertBefore(c,this._insertAt),document.body.appendChild(c),this._form=c,this._area=d}h(),this._posting=!0,this._area.value=a;try{this._form.submit()}catch(i){}this._iframe.attachEvent?f.onreadystatechange=function(){b._iframe.readyState=="complete"&&g()}:this._iframe.onload=g},JSONPPolling.prototype._get=function(){var a=this,b=document.createElement("SCRIPT");this._script&&(this._script.parentNode.removeChild(this._script),this._script=null),b.async=!0,b.src=this._prepareUrl()+"/"+ +(new Date)+"/"+this._index,b.onerror=function(){a._onDisconnect()},this._insertAt.parentNode.insertBefore(b,this._insertAt),this._script=b},JSONPPolling.prototype._=function(){this._onData.apply(this,arguments),this._get();return this},JSONPPolling.check=function(){return!0},JSONPPolling.xdomainCheck=function(){return!0}}(),function(){var a=this.io,b=a.Socket=function(b,c){this.host=b||document.domain,this.options={secure:!1,document:document,port:document.location.port||80,resource:"socket.io",transports:["websocket","flashsocket","htmlfile","xhr-multipart","xhr-polling","jsonp-polling"],transportOptions:{"xhr-polling":{timeout:25e3},"jsonp-polling":{timeout:25e3}},connectTimeout:5e3,reconnect:!0,reconnectionDelay:500,maxReconnectionAttempts:10,tryTransportsOnConnectTimeout:!0,rememberTransport:!0},a.util.merge(this.options,c),this.connected=!1,this.connecting=!1,this._events={},this.transport=this.getTransport(),!this.transport&&"console"in window&&console.error("No transport 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c=0,d=this._events[a].length;c<d;c++)this._events[a][c]==b&&this._events[a].splice(c,1);return this},b.prototype._queue=function(a){"_queueStack"in this||(this._queueStack=[]),this._queueStack.push(a);return this},b.prototype._doQueue=function(){if(!("_queueStack"in this)||!this._queueStack.length)return this;this.transport.send(this._queueStack),this._queueStack=[];return this},b.prototype._isXDomain=function(){var a=window.location.port||80;return this.host!==document.domain||this.options.port!=a},b.prototype._onConnect=function(){this.connected=!0,this.connecting=!1,this._doQueue(),this.options.rememberTransport&&(this.options.document.cookie="socketio="+encodeURIComponent(this.transport.type)),this.emit("connect")},b.prototype._onMessage=function(a){this.emit("message",[a])},b.prototype._onDisconnect=function(){var a=this.connected;this.connected=!1,this.connecting=!1,this._queueStack=[],a&&(this.emit("disconnect"),this.options.reconnect&&!this.reconnecting&&this._onReconnect())},b.prototype._onReconnect=function(){function e(){if(!!a.reconnecting)if(!a.connected){if(a.connecting&&a.reconnecting)return a.reconnectionTimer=setTimeout(e,1e3);a.reconnectionAttempts++>=a.options.maxReconnectionAttempts?a.redoTransports?(a.emit("reconnect_failed"),d()):(a.on("connect_failed",e),a.options.tryTransportsOnConnectTimeout=!0,a.transport=a.getTransport(a.options.transports),a.redoTransports=!0,a.connect()):(a.reconnectionDelay*=2,a.connect(),a.emit("reconnecting",[a.reconnectionDelay,a.reconnectionAttempts]),a.reconnectionTimer=setTimeout(e,a.reconnectionDelay))}else d()}function d(){a.connected&&a.emit("reconnect",[a.transport.type,a.reconnectionAttempts]),a.removeEvent("connect_failed",e).removeEvent("connect",e),delete a.reconnecting,delete a.reconnectionAttempts,delete a.reconnectionDelay,delete 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