From 7f6ca6eb171b2701624dcfeca15184aa2b1530b8 Mon Sep 17 00:00:00 2001
From: Arnout Kazemier <info@3rd-Eden.com>
Date: Tue, 8 Mar 2011 22:17:20 +0100
Subject: [PATCH] This should fix
 https://github.com/LearnBoost/Socket.IO/issues/92 because the client will be
 broken anyways without JSON support we might as well throw an error.

---
 lib/transport.js | 13 +++++++++----
 socket.io.js     | 13 +++++++++----
 socket.io.min.js |  2 +-
 3 files changed, 19 insertions(+), 9 deletions(-)

diff --git a/lib/transport.js b/lib/transport.js
index 9ae8721..913bc6c 100644
--- a/lib/transport.js
+++ b/lib/transport.js
@@ -16,8 +16,13 @@
   stringify = function(message){
     if (Object.prototype.toString.call(message) == '[object Object]'){
       if (!('JSON' in window)){
-        if ('console' in window && console.error) console.error('Trying to encode as JSON, but JSON.stringify is missing.');
-        return '{ "$error": "Invalid message" }';
+        var error = 'Socket.IO Error: Trying to encode as JSON, but JSON.stringify is missing.';
+        if ('console' in window && console.error){
+          console.error(error);
+        } else {
+          throw new Error(error);
+        }
+        return '{ "$error": "'+ error +'" }';
       }
       return '~j~' + JSON.stringify(message);
     } else {
@@ -46,8 +51,8 @@
   };
   
   Transport.prototype.encode = function(messages){
-    var ret = '', message,
-        messages = io.util.isArray(messages) ? messages : [messages];
+    var ret = '', message;
+    messages = io.util.isArray(messages) ? messages : [messages];
     for (var i = 0, l = messages.length; i < l; i++){
       message = messages[i] === null || messages[i] === undefined ? '' : stringify(messages[i]);
       ret += frame + message.length + frame + message;
diff --git a/socket.io.js b/socket.io.js
index 023b4db..91ebece 100644
--- a/socket.io.js
+++ b/socket.io.js
@@ -102,8 +102,13 @@ if (typeof window != 'undefined'){
   stringify = function(message){
     if (Object.prototype.toString.call(message) == '[object Object]'){
       if (!('JSON' in window)){
-        if ('console' in window && console.error) console.error('Trying to encode as JSON, but JSON.stringify is missing.');
-        return '{ "$error": "Invalid message" }';
+        var error = 'Socket.IO Error: Trying to encode as JSON, but JSON.stringify is missing.';
+        if ('console' in window && console.error){
+          console.error(error);
+        } else {
+          throw new Error(error);
+        }
+        return '{ "$error": "'+ error +'" }';
       }
       return '~j~' + JSON.stringify(message);
     } else {
@@ -132,8 +137,8 @@ if (typeof window != 'undefined'){
   };
   
   Transport.prototype.encode = function(messages){
-    var ret = '', message,
-        messages = io.util.isArray(messages) ? messages : [messages];
+    var ret = '', message;
+    messages = io.util.isArray(messages) ? messages : [messages];
     for (var i = 0, l = messages.length; i < l; i++){
       message = messages[i] === null || messages[i] === undefined ? '' : stringify(messages[i]);
       ret += frame + message.length + frame + message;
diff --git a/socket.io.min.js b/socket.io.min.js
index 6467de6..ff22df9 100644
--- a/socket.io.min.js
+++ b/socket.io.min.js
@@ -1,2 +1,2 @@
 /* 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=/\/$/.test(a)?a:a+"/",WEB_SOCKET_SWF_LOCATION=a+"lib/vendor/web-socket-js/WebSocketMain.swf"}};"jQuery"in this&&(jQuery.io=this.io),typeof window!="undefined"&&typeof WEB_SOCKET_SWF_LOCATION=="undefined"&&(WEB_SOCKET_SWF_LOCATION="/socket.io/lib/vendor/web-socket-js/WebSocketMain.swf"),function(){var a=this.io,b=!1;a.util={ios:!1,load:function(a){if(/loaded|complete/.test(document.readyState)||b)return a();"attachEvent"in window?window.attachEvent("onload",a):window.addEventListener("load",a,!1)},inherit:function(a,b){for(var c in b.prototype)a.prototype[c]=b.prototype[c]},indexOf:function(a,b,c){for(var d=a.length,e=c<0?Math.max(0,d+c):c||0;e<d;e++)if(a[e]===b)return e;return-1},isArray:function(a){return Object.prototype.toString.call(a)==="[object Array]"},merge:function(a,b){for(var c in b)b.hasOwnProperty(c)&&(a[c]=b[c])}},a.util.ios=/iphone|ipad/i.test(navigator.userAgent),a.util.android=/android/i.test(navigator.userAgent),a.util.load(function(){b=!0})}(),function(){var a=this.io,b="~m~",c=function(a){if(Object.prototype.toString.call(a)=="[object Object]"){if(!("JSON"in window)){"console"in window&&console.error&&console.error("Trying to encode as JSON, but JSON.stringify is missing.");return'{ "$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.sendIORequest(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.sendIORequest=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("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(a){}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(){if(this.iframe){try{this.iframe.src="about:blank"}catch(a){}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.sendIORequest=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 available")};b.prototype.getTransport=function(b){var c=b||this.options.transports,d;this.options.rememberTransport&&!b&&(d=this.options.document.cookie.match("(?:^|;)\\s*socketio=([^;]*)"),d&&(this.rememberedTransport=!0,c=[decodeURIComponent(d[1])]));for(var e=0,f;f=c[e];e++)if(a.Transport[f]&&a.Transport[f].check()&&(!this.isXDomain()||a.Transport[f].xdomainCheck()))return new a.Transport[f](this,this.options.transportOptions[f]||{});return null},b.prototype.connect=function(){if(this.transport&&!this.connected){this.connecting&&this.disconnect(!0),this.connecting=!0,this.emit("connecting",[this.transport.type]),this.transport.connect();if(this.options.connectTimeout){var a=this;this.connectTimeoutTimer=setTimeout(function(){if(!a.connected){a.disconnect(!0);if(a.options.tryTransportsOnConnectTimeout&&!a.rememberedTransport){a.remainingTransports||(a.remainingTransports=a.options.transports.slice(0));var b=a.remainingTransports;while(b.length>0&&b.splice(0,1)[0]!=a.transport.type);b.length&&(a.transport=a.getTransport(b),a.connect())}(!a.remainingTransports||a.remainingTransports.length==0)&&a.emit("connect_failed")}a.remainingTransports&&a.remainingTransports.length==0&&delete a.remainingTransports},this.options.connectTimeout)}}return this},b.prototype.send=function(a){if(!this.transport||!this.transport.connected)return this.queue(a);this.transport.send(a);return this},b.prototype.disconnect=function(a){this.connectTimeoutTimer&&clearTimeout(this.connectTimeoutTimer),a||(this.options.reconnect=!1),this.transport.disconnect();return this},b.prototype.on=function(a,b){a in this.events||(this.events[a]=[]),this.events[a].push(b);return this},b.prototype.emit=function(a,b){if(a in this.events){var c=this.events[a].concat();for(var d=0,e=c.length;d<e;d++)c[d].apply(this,b===undefined?[]:b)}return this},b.prototype.removeEvent=function(a,b){if(a in this.events)for(var 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 a.reconnectionTimer,delete a.redoTransports,a.options.tryTransportsOnConnectTimeout=b,a.options.rememberTransport=c;return}this.reconnecting=!0,this.reconnectionAttempts=0,this.reconnectionDelay=this.options.reconnectionDelay;var 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