├── .gitignore
├── LICENSE
├── README.md
├── client
    ├── index.html
    ├── scripts
    │   ├── index.js
    │   ├── recorder.js
    │   └── socket.io-1.2.0.js
    └── workers
    │   ├── EmsArgs.js
    │   ├── EmsWorkerProxy.js
    │   ├── OpusEncoder.js
    │   ├── opusenc.data.js
    │   ├── opusenc.js
    │   └── recorderWorker.js
├── package.json
└── server
    └── app.js


/.gitignore:
--------------------------------------------------------------------------------
1 | node_modules
2 | bin
3 | **/*.log
4 | uploads


--------------------------------------------------------------------------------
/LICENSE:
--------------------------------------------------------------------------------
 1 | Copyright (c) 2014-15 Ban Mido
 2 | 
 3 | Permission is hereby granted, free of charge, to any person obtaining a copy
 4 | of this software and associated documentation files (the "Software"), to deal
 5 | in the Software without restriction, including without limitation the rights
 6 | to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 7 | copies of the Software, and to permit persons to whom the Software is
 8 | furnished to do so, subject to the following conditions:
 9 | 
10 | The above copyright notice and this permission notice shall be included in
11 | all copies or substantial portions of the Software.
12 | 
13 | THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
14 | IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
15 | FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
16 | AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
17 | LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
18 | OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
19 | THE SOFTWARE.


--------------------------------------------------------------------------------
/README.md:
--------------------------------------------------------------------------------
 1 | ### Note
 2 | 
 3 | For those looking for pure client based solution, not streaming packets to server, take a look at [this demo](https://github.com/Mido22/MediaRecorder-sample), it works in chrome v47+ and firefox v25+, the code is quite simple, my advice to you is use HTML5's MediaRecorder directly and no use some third-party wrapper library unless it is absolutely needed.
 4 | 
 5 | ---
 6 | 
 7 | #  Opus Audio Recorder
 8 | 
 9 | 
10 | If support for MediaRecorder API is detected( in case of Firefox), my recorder is just a wrapper for it, for other case, I am using [Rillke](https://github.com/Rillke)'s [opus library](https://github.com/Rillke/opusenc.js) for compressing wav audio into ogg file on client side.
11 | 
12 | You can just host the files in `client` folder in any server, if you just want to record audio from microphone in one shot and save as `ogg` file, but if you do not want to run out of browser memory( while recording long podcasts and such,) you can keep sending the data as chunks to the server, at desired time intervals and server would join all of them into single file( `ffmpeg` needed for browsers other than firefox) and provide you the final link.
13 | 
14 | 
15 | ### Things needed:
16 | * node (for server)
17 | * ffmpeg (for media manipulation, OPTIONAL)
18 | 
19 | 
20 | ### set-up:
21 |  * npm install 
22 |  * `ffmpeg` must be pre-installed and must be part of path
23 |  
24 | to start the application, just type `npm start` in the project root folder.
25 | 
26 |  
27 | ### Sources:
28 |   * [Opus](https://github.com/Rillke/opusenc.js)
29 |   * [Opus( older one)](https://github.com/kazuki/opus.js-sample)
30 |   * [Wav Recorder](https://github.com/mattdiamond/Recorderjs)
31 | 
32 |  
33 | License
34 | -------
35 | 
36 | See file LICENSE for further information.
37 | 
38 | 
39 | Author
40 | ------
41 | 
42 | Ban Mido
43 | 
44 | 


--------------------------------------------------------------------------------
/client/index.html:
--------------------------------------------------------------------------------
 1 | <!DOCTYPE html>
 2 | <html lang="en-us">
 3 | <head>
 4 | <meta charset="utf-8">
 5 | <meta name="viewport" content="width=device-width">
 6 | <title>Opus Recorder</title>
 7 | <style>
 8 | body {
 9 |   padding: 50px;
10 |   font: 14px "Lucida Grande", Helvetica, Arial, sans-serif;
11 | }
12 | 
13 | </style>
14 | </head>
15 | <body>
16 | <div class="wrapper">
17 | <header>
18 | <h1>Javascript Opus Recorder</h1>
19 | </header>
20 | 
21 |   <p> make sure you enable permissions for recording audio.</p>
22 |   <div id='controls'>
23 |     <button id='start' >start</button>
24 |     <button id='stop' >stop</button>
25 |   </div>
26 |   <div id='options'>
27 | 	  <div> auto-upload : <input type='checkbox' id='autoUpload' /></div>
28 | 	  <div> upload every( in seconds): <input type='number' id='intervalTime' value='5' /></div>
29 |   </div>
30 |   <div id='downloads'>
31 |   </div>
32 |   <ul id="recordingslist"></ul>
33 | 
34 | <script src="scripts/socket.io-1.2.0.js"></script>
35 | <script src="scripts/recorder.js"></script>
36 | <script src="scripts/index.js"></script>
37 | </body>
38 | </html>


--------------------------------------------------------------------------------
/client/scripts/index.js:
--------------------------------------------------------------------------------
 1 | navigator.getUserMedia  = navigator.getUserMedia || navigator.webkitGetUserMedia || navigator.mozGetUserMedia || navigator.msGetUserMedia;
 2 | 
 3 | var recorder
 4 |   , input
 5 |   , start
 6 |   , stop
 7 |   , recordingslist
 8 |   , socket
 9 |   , autoUpload = document.getElementById('autoUpload')
10 |   , intervalTime = document.getElementById('intervalTime')
11 | ;
12 | 
13 | socket = io();
14 | socket.on('link', onServerFileReady);  
15 | function onServerFileReady(data){
16 |     //if(self.uid!== data.uid)	return;
17 |     data.path = data.path.replace('\\', '/');
18 |     var url = location.protocol + '//' + location.host + '/'+data.path;
19 |     data.url = url;
20 |     tmp =url.split('/');
21 |     data.name = tmp[tmp.length-1];
22 |     addFileLink(data);			
23 | }
24 | 
25 | document.addEventListener("DOMContentLoaded", function() {
26 |   socket = io();
27 |   start = document.getElementById('start');
28 |   stop = document.getElementById('stop');
29 |   recordingslist = document.getElementById('recordingslist');
30 |   audio_context = new AudioContext;
31 |   navigator.getUserMedia({audio: true}, function(stream) {
32 |         window.stream = stream;
33 |       start.removeAttribute('disabled');
34 |   }, function(e){ console.log('error occoured= '+e)});
35 | 
36 |   start.setAttribute('disabled',true);
37 |   stop.setAttribute('disabled',true);
38 |   start.onclick = startRecording;
39 |   stop.onclick = stopRecording;
40 | });
41 | 
42 | function startRecording() {
43 |   recorder = new OpusRecorder(window.stream, {
44 |      autoUpload: autoUpload.checked,
45 |      intervalTime: Math.round(intervalTime.value * 1000)
46 |   }, socket);
47 |   recorder.start();
48 |   start.setAttribute('disabled',true);
49 |   stop.removeAttribute('disabled');
50 | }
51 | 
52 | function stopRecording() {
53 |   recorder.stop(addFileLink);
54 |   start.removeAttribute('disabled');
55 |   stop.setAttribute('disabled',true);    
56 | }
57 | 
58 | function addFileLink(data) {
59 |     
60 |   var url = data.url
61 |     , li = document.createElement('li')
62 |     , au = document.createElement('audio')
63 |     , hf = document.createElement('a')
64 |   ;
65 |   if(document.querySelector('li.'+data.uid))  return;
66 |   li.className += " ."+data.uid;
67 |   au.controls = true;
68 |   au.src = url;
69 |   hf.href = url;
70 |   hf.download = data.name || 'download';
71 |   hf.innerHTML = hf.download;
72 |   li.appendChild(au);
73 |   li.appendChild(hf);
74 |   recordingslist.appendChild(li); 
75 | }
76 |   
77 | 


--------------------------------------------------------------------------------
/client/scripts/recorder.js:
--------------------------------------------------------------------------------
  1 | (function(window){
  2 |   
  3 |     window.AudioContext = window.AudioContext || window.webkitAudioContext;
  4 |     window.URL = window.URL || window.webkitURL;
  5 |     window.audioContext = new AudioContext();
  6 |     window.OpusRecorder = OpusRecorder;
  7 |     var WORKER_PATH = 'workers/recorderWorker.js',
  8 |         OPUS_WORKER_PATH = 'workers/EmsWorkerProxy.js',
  9 |         commonCallback;     
 10 | 
 11 |     function OggShimRecorder(stream, cfg){
 12 |     
 13 | 
 14 |         var config = cfg || {}
 15 | 			, self = this
 16 |             , bufferLen = 16384
 17 |             , intervalTime = config.intervalTime || 60000
 18 |             , autoUpload = !!config.autoUpload
 19 |             , recording = false
 20 |             , worker = new Worker(config.workerPath || WORKER_PATH)
 21 |             , oggWorker = new Worker(config.opusWorkerPath || OPUS_WORKER_PATH)
 22 |             , source = window.audioContext.createMediaStreamSource(stream)
 23 |             , ctx = source.context
 24 |             , sampleRate = ctx.sampleRate
 25 |             , node = ctx.createScriptProcessor(bufferLen, 2, 2)
 26 |             , callback = config.callback
 27 |             , vInterval
 28 |             , recorderType = 'OggShim'
 29 |         ;
 30 |         source.connect(node);        
 31 |         node.connect(ctx.destination);
 32 | 
 33 |         //using the below variables to keep track of chucks sent to worker for conversion, we are gonna convert chunks sequencially as when done in parallel, sometimes the (last) smaller chuck finishes first sometimes and previous few chucks are missed.
 34 |         var encodingInProgess = false,
 35 |             waitQueue = [];  // for holding wav to ogg conversion worker call data( used for ensuring sequencing)
 36 | 
 37 |         
 38 |         node.onaudioprocess = function(e){
 39 |             if (!recording) return;
 40 |             worker.postMessage({
 41 |                 command: 'record',
 42 |                 buffer: [e.inputBuffer.getChannelData(0), e.inputBuffer.getChannelData(1)]
 43 |             });
 44 |         };
 45 | 		
 46 |         worker.postMessage({
 47 |             command: 'init',
 48 |             config: {
 49 |                 sampleRate: sampleRate
 50 |             }
 51 |         });
 52 |         
 53 |         worker.onmessage = function(e){	
 54 |             var data = e.data;
 55 |             delete data.command;
 56 |             blobToArrayBuffer(data.blob, function(buffer){
 57 |                 oggWorker.postMessage({
 58 |                   command: 'encode',
 59 |                   args: ['in', 'out'],
 60 |                   outData: {out: {MIME: 'audio/ogg'}},
 61 |                   fileData: {in: new Uint8Array(buffer)}
 62 |                 });  
 63 |                 oggWorker.onmessage = function(e) {
 64 |                   var next;
 65 |                   if(e.data && e.data.reply){
 66 |                     if(e.data.reply === 'done'){      
 67 |                       data.blob = e.data.values.out.blob;
 68 |                       callback(data);
 69 |                       if(waitQueue.length){
 70 |                         next = waitQueue.shift();
 71 |                         worker.postMessage(next);
 72 |                       }else{
 73 |                         encodingInProgess = false;
 74 |                       }
 75 |                     }
 76 |                   }
 77 |                 };                    
 78 |             });
 79 |         };
 80 | 
 81 |         this.start = function(){
 82 |             recording = true;      
 83 |             if(autoUpload)	vInterval = setInterval(getBlob, intervalTime);
 84 |         };
 85 | 
 86 |         this.stop = function(cb){
 87 |             callback = cb || callback;
 88 |             if(vInterval)	clearInterval(vInterval);
 89 |             getBlob(true);
 90 |             recording = false;
 91 |         };
 92 |         
 93 |         function getBlob(last){
 94 | 
 95 |             var msg = {
 96 |                 command: 'export',
 97 |                 autoUpload: autoUpload,
 98 |                 stop: last,
 99 |                 recorderType: recorderType
100 |             };
101 |             if(encodingInProgess){
102 |                 waitQueue.push(msg);
103 |             }else{
104 |                 encodingInProgess = true;
105 |                 worker.postMessage(msg);
106 |             }
107 |         }	
108 | 
109 |     };
110 | 
111 |     function FoxRecorder(stream, cfg){
112 |         
113 |         console.log('using native MediaRecorder for recording...' );
114 |         var mediaRecorder = new MediaRecorder(stream);
115 |         var config = cfg || {}
116 | 			, self = this
117 |             , intervalTime = config.intervalTime || 60000
118 |             , autoUpload = !!config.autoUpload
119 |             , callback = config.callback
120 |             , chunksRequested = 0, chunkId = 0                        // for identifying the last data chunk
121 |             , vInterval
122 |             , stopped
123 |             , callback = config.callback
124 |             , recorderType = 'Fox'
125 |         ;
126 |         
127 |         this.start = function(){
128 |             mediaRecorder.start();
129 |             if(autoUpload)	vInterval = setInterval(requestData, intervalTime);
130 |         };
131 | 
132 |         this.stop = function(cb){
133 |             callback = cb || callback;
134 |             if(vInterval)	clearInterval(vInterval);
135 |             mediaRecorder.stop();
136 |             chunksRequested++;
137 |             stopped = true;     // can also be checked as mediarecorder.state === 'inactive'
138 |         };
139 | 		
140 |         function requestData(){
141 |             mediaRecorder.requestData();
142 |             chunksRequested++;
143 |         }
144 |         
145 |         mediaRecorder.ondataavailable = function(e){
146 |             chunkId++;
147 |             callback({
148 |                 autoUpload: autoUpload,
149 |                 stop: (chunkId >= chunksRequested) && stopped,
150 |                 type: 'ogg',
151 |                 blob: e.data,
152 |                 recorderType: recorderType
153 |             });  
154 |         }
155 |     };
156 |     
157 |     function OpusRecorder(stream, cfg, socket){
158 |     
159 |         var config = cfg || {}
160 | 			, self = this
161 |             , callback = config.callback
162 |             , recorder
163 |             , uid = genRandom()
164 |         ;
165 |         
166 |         config.intervalTime = config.intervalTime || 60000;
167 |         config.autoUpload = !!config.autoUpload;
168 |         config.type = 'ogg';
169 |         config.callback = onBlobData;        
170 |         if(callback)    commonCallback = callback;        
171 |         
172 |         this.start = function(){
173 |             recorder  = (window.MediaRecorder)? new FoxRecorder(stream, config) : new OggShimRecorder(stream, config);
174 |             recorder.start();
175 |         };
176 | 
177 |         this.stop = function(cb){
178 |             if(cb)  callback = commonCallback = cb;
179 |             recorder.stop();
180 |         };
181 | 
182 |         function onBlobData(data){
183 |             data.uid= uid;
184 |             if(!autoUpload){
185 |                 data.name = [data.uid, data.type || 'ogg'].join('.');
186 |                 data.url = window.URL.createObjectURL(data.blob);
187 |                 callback(data);
188 |             }else{
189 |                 socket.emit('save', data);
190 |             }
191 |         }      
192 | 		
193 |     };
194 |     
195 |     function genRandom(){
196 |         return ('Rec:'+(new Date()).toTimeString().slice(0, 8) + ':' + Math.round(Math.random()*1000)).replace(/:/g,'_');
197 |     }
198 |         
199 |     function blobToArrayBuffer(blob, cb){
200 |         var fileReader = new FileReader();
201 |         fileReader.onload = function() {
202 |             cb(this.result);
203 |         };
204 |         fileReader.readAsArrayBuffer(blob);
205 |     }
206 |   
207 | })(window);
208 | 
209 | 
210 | 
211 | 


--------------------------------------------------------------------------------
/client/scripts/socket.io-1.2.0.js:
--------------------------------------------------------------------------------
1 | !function(e){if("object"==typeof exports&&"undefined"!=typeof module)module.exports=e();else if("function"==typeof define&&define.amd)define([],e);else{var f;"undefined"!=typeof window?f=window:"undefined"!=typeof global?f=global:"undefined"!=typeof self&&(f=self),f.io=e()}}(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);throw new Error("Cannot find module '"+o+"'")}var f=n[o]={exports:{}};t[o][0].call(f.exports,function(e){var n=t[o][1][e];return s(n?n:e)},f,f.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){module.exports=_dereq_("./lib/")},{"./lib/":2}],2:[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 io;if(opts.forceNew||opts["force new connection"]||false===opts.multiplex){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":3,"./socket":5,"./url":6,debug:9,"socket.io-parser":40}],3:[function(_dereq_,module,exports){var url=_dereq_("./url");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 object=_dereq_("object-component");var debug=_dereq_("debug")("socket.io-client:manager");var indexOf=_dereq_("indexof");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.timeout(null==opts.timeout?2e4:opts.timeout);this.readyState="closed";this.uri=uri;this.connected=[];this.attempts=0;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){this.nsps[nsp].emit.apply(this.nsps[nsp],arguments)}};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;return this};Manager.prototype.reconnectionDelayMax=function(v){if(!arguments.length)return this._reconnectionDelayMax;this._reconnectionDelayMax=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.openReconnect&&!this.reconnecting&&this._reconnection&&this.attempts===0){this.openReconnect=true;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)}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(this.decoder,"decoded",bind(this,"ondecoded")));this.subs.push(on(socket,"error",bind(this,"onerror")));this.subs.push(on(socket,"close",bind(this,"onclose")))};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("connect",function(){if(!~indexOf(self.connected,socket)){self.connected.push(socket)}})}return socket};Manager.prototype.destroy=function(socket){var index=indexOf(this.connected,socket);if(~index)this.connected.splice(index,1);if(this.connected.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])}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(){var sub;while(sub=this.subs.shift())sub.destroy();this.packetBuffer=[];this.encoding=false;this.decoder.destroy()};Manager.prototype.close=Manager.prototype.disconnect=function(){this.skipReconnect=true;this.readyState="closed";this.engine&&this.engine.close()};Manager.prototype.onclose=function(reason){debug("close");this.cleanup();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;this.attempts++;if(this.attempts>this._reconnectionAttempts){debug("reconnect failed");this.emitAll("reconnect_failed");this.reconnecting=false}else{var delay=this.attempts*this.reconnectionDelay();delay=Math.min(delay,this.reconnectionDelayMax());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.attempts);self.emitAll("reconnecting",self.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.attempts;this.attempts=0;this.reconnecting=false;this.emitAll("reconnect",attempt)}},{"./on":4,"./socket":5,"./url":6,"component-bind":7,"component-emitter":8,debug:9,"engine.io-client":10,indexof:36,"object-component":37,"socket.io-parser":40}],4:[function(_dereq_,module,exports){module.exports=on;function on(obj,ev,fn){obj.on(ev,fn);return{destroy:function(){obj.removeListener(ev,fn)}}}},{}],5:[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,disconnect:1,error:1,reconnect:1,reconnect_attempt:1,reconnect_failed:1,reconnect_error:1,reconnecting:1};var emit=Emitter.prototype.emit;function Socket(io,nsp){this.io=io;this.nsp=nsp;this.json=this;this.ids=0;this.acks={};if(this.io.autoConnect)this.open();this.receiveBuffer=[];this.sendBuffer=[];this.connected=false;this.disconnected=true}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();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};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)}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;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){debug("calling ack %s with %j",packet.id,packet.data);var fn=this.acks[packet.id];fn.apply(this,packet.data);delete this.acks[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}},{"./on":4,"component-bind":7,"component-emitter":8,debug:9,"has-binary":32,"socket.io-parser":40,"to-array":44}],6:[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.hostname;if("string"==typeof uri){if("/"==uri.charAt(0)){if("/"==uri.charAt(1)){uri=loc.protocol+uri}else{uri=loc.hostname+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||"/";obj.id=obj.protocol+"://"+obj.host+":"+obj.port;obj.href=obj.protocol+"://"+obj.host+(loc&&loc.port==obj.port?"":":"+obj.port);return obj}}).call(this,typeof self!=="undefined"?self:typeof window!=="undefined"?window:{})},{debug:9,parseuri:38}],7:[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)))}}},{}],8:[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){var self=this;this._callbacks=this._callbacks||{};function on(){self.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}},{}],9:[function(_dereq_,module,exports){module.exports=debug;function debug(name){if(!debug.enabled(name))return function(){};return function(fmt){fmt=coerce(fmt);var curr=new Date;var ms=curr-(debug[name]||curr);debug[name]=curr;fmt=name+" "+fmt+" +"+debug.humanize(ms);window.console&&console.log&&Function.prototype.apply.call(console.log,console,arguments)}}debug.names=[];debug.skips=[];debug.enable=function(name){try{localStorage.debug=name}catch(e){}var split=(name||"").split(/[\s,]+/),len=split.length;for(var i=0;i<len;i++){name=split[i].replace("*",".*?");if(name[0]==="-"){debug.skips.push(new RegExp("^"+name.substr(1)+"$"))}else{debug.names.push(new RegExp("^"+name+"$"))}}};debug.disable=function(){debug.enable("")};debug.humanize=function(ms){var sec=1e3,min=60*1e3,hour=60*min;if(ms>=hour)return(ms/hour).toFixed(1)+"h";if(ms>=min)return(ms/min).toFixed(1)+"m";if(ms>=sec)return(ms/sec|0)+"s";return ms+"ms"};debug.enabled=function(name){for(var i=0,len=debug.skips.length;i<len;i++){if(debug.skips[i].test(name)){return false}}for(var i=0,len=debug.names.length;i<len;i++){if(debug.names[i].test(name)){return true}}return false};function coerce(val){if(val instanceof Error)return val.stack||val.message;return val}try{if(window.localStorage)debug.enable(localStorage.debug)}catch(e){}},{}],10:[function(_dereq_,module,exports){module.exports=_dereq_("./lib/")},{"./lib/":11}],11:[function(_dereq_,module,exports){module.exports=_dereq_("./socket");module.exports.parser=_dereq_("engine.io-parser")},{"./socket":12,"engine.io-parser":21}],12:[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.host=uri.host;opts.secure=uri.protocol=="https"||uri.protocol=="wss";opts.port=uri.port;if(uri.query)opts.query=uri.query}this.secure=null!=opts.secure?opts.secure:global.location&&"https:"==location.protocol;if(opts.host){var pieces=opts.host.split(":");opts.hostname=pieces.shift();if(pieces.length)opts.port=pieces.pop()}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.callbackBuffer=[];this.policyPort=opts.policyPort||843;this.rememberUpgrade=opts.rememberUpgrade||false;this.open();this.binaryType=null;this.onlyBinaryUpgrades=opts.onlyBinaryUpgrades}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});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";var transport;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();break;case"error":var err=new Error("server error");err.code=packet.data;this.emit("error",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(){this.sendPacket("ping")};Socket.prototype.onDrain=function(){for(var i=0;i<this.prevBufferLen;i++){if(this.callbackBuffer[i]){this.callbackBuffer[i]()}}this.writeBuffer.splice(0,this.prevBufferLen);this.callbackBuffer.splice(0,this.prevBufferLen);this.prevBufferLen=0;if(this.writeBuffer.length==0){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,fn){this.sendPacket("message",msg,fn);return this};Socket.prototype.sendPacket=function(type,data,fn){if("closing"==this.readyState||"closed"==this.readyState){return}var packet={type:type,data:data};this.emit("packetCreate",packet);this.writeBuffer.push(packet);this.callbackBuffer.push(fn);this.flush()};Socket.prototype.close=function(){if("opening"==this.readyState||"open"==this.readyState){this.readyState="closing";var self=this;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)}if(this.writeBuffer.length){this.once("drain",function(){if(this.upgrading){waitForUpgrade()}else{close()}})}else if(this.upgrading){waitForUpgrade()}else{close()}}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);setTimeout(function(){self.writeBuffer=[];self.callbackBuffer=[];self.prevBufferLen=0},0);this.transport.removeAllListeners("close");this.transport.close();this.transport.removeAllListeners();this.readyState="closed";this.id=null;this.emit("close",reason,desc)}};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:{})},{"./transport":13,"./transports":14,"component-emitter":8,debug:9,"engine.io-parser":21,indexof:36,parsejson:28,parseqs:29,parseuri:30}],13:[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}Emitter(Transport.prototype);Transport.timestamps=0;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":8,"engine.io-parser":21}],14:[function(_dereq_,module,exports){(function(global){var XMLHttpRequest=_dereq_("xmlhttprequest");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:{})},{"./polling-jsonp":15,"./polling-xhr":16,"./websocket":18,xmlhttprequest:19}],15:[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})}}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];insertAt.parentNode.insertBefore(script,insertAt);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)
2 | }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:{})},{"./polling":17,"component-inherit":20}],16:[function(_dereq_,module,exports){(function(global){var XMLHttpRequest=_dereq_("xmlhttprequest");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}}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;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.create()}Emitter(Request.prototype);Request.prototype.create=function(){var xhr=this.xhr=new XMLHttpRequest({agent:this.agent,xdomain:this.xd,xscheme:this.xs,enablesXDR:this.enablesXDR});var self=this;try{debug("xhr open %s: %s",this.method,this.uri);xhr.open(this.method,this.uri,this.async);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()};Request.prototype.cleanup=function(){if("undefined"==typeof this.xhr||null===this.xhr){return}if(this.hasXDR()){this.xhr.onload=this.xhr.onerror=empty}else{this.xhr.onreadystatechange=empty}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{data="ok"}}}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)}}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:{})},{"./polling":17,"component-emitter":8,"component-inherit":20,debug:9,xmlhttprequest:19}],17:[function(_dereq_,module,exports){var Transport=_dereq_("../transport");var parseqs=_dereq_("parseqs");var parser=_dereq_("engine.io-parser");var inherit=_dereq_("component-inherit");var debug=_dereq_("debug")("engine.io-client:polling");module.exports=Polling;var hasXHR2=function(){var XMLHttpRequest=_dereq_("xmlhttprequest");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"==this.readyState){this.poll()}else{debug('ignoring poll - transport state "%s"',this.readyState)}}};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{debug("transport not open - deferring close");this.once("open",close)}};Polling.prototype.write=function(packets){var self=this;this.writable=false;var callbackfn=function(){self.writable=true;self.emit("drain")};var self=this;parser.encodePayload(packets,this.supportsBinary,function(data){self.doWrite(data,callbackfn)})};Polling.prototype.uri=function(){var query=this.query||{};var schema=this.secure?"https":"http";var port="";if(false!==this.timestampRequests){query[this.timestampParam]=+new Date+"-"+Transport.timestamps++}if(!this.supportsBinary&&!query.sid){query.b64=1}query=parseqs.encode(query);if(this.port&&("https"==schema&&this.port!=443||"http"==schema&&this.port!=80)){port=":"+this.port}if(query.length){query="?"+query}return schema+"://"+this.hostname+port+this.path+query}},{"../transport":13,"component-inherit":20,debug:9,"engine.io-parser":21,parseqs:29,xmlhttprequest:19}],18:[function(_dereq_,module,exports){var Transport=_dereq_("../transport");var parser=_dereq_("engine.io-parser");var parseqs=_dereq_("parseqs");var inherit=_dereq_("component-inherit");var debug=_dereq_("debug")("engine.io-client:websocket");var WebSocket=_dereq_("ws");module.exports=WS;function WS(opts){var forceBase64=opts&&opts.forceBase64;if(forceBase64){this.supportsBinary=false}Transport.call(this,opts)}inherit(WS,Transport);WS.prototype.name="websocket";WS.prototype.supportsBinary=true;WS.prototype.doOpen=function(){if(!this.check()){return}var self=this;var uri=this.uri();var protocols=void 0;var opts={agent:this.agent};this.ws=new WebSocket(uri,protocols,opts);if(this.ws.binaryType===undefined){this.supportsBinary=false}this.ws.binaryType="arraybuffer";this.addEventListeners()};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)}};if("undefined"!=typeof navigator&&/iPad|iPhone|iPod/i.test(navigator.userAgent)){WS.prototype.onData=function(data){var self=this;setTimeout(function(){Transport.prototype.onData.call(self,data)},0)}}WS.prototype.write=function(packets){var self=this;this.writable=false;for(var i=0,l=packets.length;i<l;i++){parser.encodePacket(packets[i],this.supportsBinary,function(data){try{self.ws.send(data)}catch(e){debug("websocket closed before onclose event")}})}function ondrain(){self.writable=true;self.emit("drain")}setTimeout(ondrain,0)};WS.prototype.onClose=function(){Transport.prototype.onClose.call(this)};WS.prototype.doClose=function(){if(typeof this.ws!=="undefined"){this.ws.close()}};WS.prototype.uri=function(){var query=this.query||{};var schema=this.secure?"wss":"ws";var port="";if(this.port&&("wss"==schema&&this.port!=443||"ws"==schema&&this.port!=80)){port=":"+this.port}if(this.timestampRequests){query[this.timestampParam]=+new Date}if(!this.supportsBinary){query.b64=1}query=parseqs.encode(query);if(query.length){query="?"+query}return schema+"://"+this.hostname+port+this.path+query};WS.prototype.check=function(){return!!WebSocket&&!("__initialize"in WebSocket&&this.name===WS.prototype.name)}},{"../transport":13,"component-inherit":20,debug:9,"engine.io-parser":21,parseqs:29,ws:31}],19:[function(_dereq_,module,exports){var hasCORS=_dereq_("has-cors");module.exports=function(opts){var xdomain=opts.xdomain;var xscheme=opts.xscheme;var enablesXDR=opts.enablesXDR;try{if("undefined"!=typeof XMLHttpRequest&&(!xdomain||hasCORS)){return new XMLHttpRequest}}catch(e){}try{if("undefined"!=typeof XDomainRequest&&!xscheme&&enablesXDR){return new XDomainRequest}}catch(e){}if(!xdomain){try{return new ActiveXObject("Microsoft.XMLHTTP")}catch(e){}}}},{"has-cors":34}],20:[function(_dereq_,module,exports){module.exports=function(a,b){var fn=function(){};fn.prototype=b.prototype;a.prototype=new fn;a.prototype.constructor=a}},{}],21:[function(_dereq_,module,exports){(function(global){var keys=_dereq_("./keys");var sliceBuffer=_dereq_("arraybuffer.slice");var base64encoder=_dereq_("base64-arraybuffer");var after=_dereq_("after");var utf8=_dereq_("utf8");var isAndroid=navigator.userAgent.match(/Android/i);exports.protocol=3;var packets=exports.packets={open:0,close:1,ping:2,pong:3,message:4,upgrade:5,noop:6};var packetslist=keys(packets);var err={type:"error",data:"parser error"};var Blob=_dereq_("blob");exports.encodePacket=function(packet,supportsBinary,utf8encode,callback){if("function"==typeof supportsBinary){callback=supportsBinary;supportsBinary=false}if("function"==typeof utf8encode){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)}var encoded=packets[packet.type];if(undefined!==packet.data){encoded+=utf8encode?utf8.encode(String(packet.data)):String(packet.data)}return callback(""+encoded)};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(isAndroid){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)}exports.encodeBase64Packet=function(packet,callback){var message="b"+exports.packets[packet.type];if(Blob&&packet.data instanceof 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){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)};exports.decodePacket=function(data,binaryType,utf8decode){if(typeof data=="string"||data===undefined){if(data.charAt(0)=="b"){return exports.decodeBase64Packet(data.substr(1),binaryType)}if(utf8decode){try{data=utf8.decode(data)}catch(e){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}};exports.decodeBase64Packet=function(msg,binaryType){var type=packetslist[msg.charAt(0)];if(!global.ArrayBuffer){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}};exports.encodePayload=function(packets,supportsBinary,callback){if(typeof supportsBinary=="function"){callback=supportsBinary;supportsBinary=null}if(supportsBinary){if(Blob&&!isAndroid){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,supportsBinary,true,function(message){doneCallback(null,setLengthHeader(message))})}map(packets,encodeOne,function(err,results){return callback(results.join(""))})};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)}}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==""){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}else{if(""==length||length!=(n=Number(length))){return callback(err,0,1)}msg=data.substr(i+1,n);if(length!=msg.length){return callback(err,0,1)}if(msg.length){packet=exports.decodePacket(msg,binaryType,true);if(err.type==packet.type&&err.data==packet.data){return callback(err,0,1)}var ret=callback(packet,i+n,l);if(false===ret)return}i+=n;length=""}}if(length!=""){return callback(err,0,1)}};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},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){resultArray[bufferIndex++]=0}else{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)})};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))})};exports.decodePayloadAsBinary=function(data,binaryType,callback){if(typeof binaryType==="function"){callback=binaryType;binaryType=null}var bufferTail=data;var buffers=[];var numberTooLong=false;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;if(msgLength.length>310){numberTooLong=true;break}msgLength+=tailArray[i]}if(numberTooLong)return callback(err,0,1);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){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)})}}).call(this,typeof self!=="undefined"?self:typeof window!=="undefined"?window:{})},{"./keys":22,after:23,"arraybuffer.slice":24,"base64-arraybuffer":25,blob:26,utf8:27}],22:[function(_dereq_,module,exports){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}},{}],23:[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(){}},{}],24:[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}},{}],25:[function(_dereq_,module,exports){(function(chars){"use strict";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=chars.indexOf(base64[i]);encoded2=chars.indexOf(base64[i+1]);encoded3=chars.indexOf(base64[i+2]);encoded4=chars.indexOf(base64[i+3]);bytes[p++]=encoded1<<2|encoded2>>4;bytes[p++]=(encoded2&15)<<4|encoded3>>2;bytes[p++]=(encoded3&3)<<6|encoded4&63}return arraybuffer}})("ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/")},{}],26:[function(_dereq_,module,exports){(function(global){var BlobBuilder=global.BlobBuilder||global.WebKitBlobBuilder||global.MSBlobBuilder||global.MozBlobBuilder;var blobSupported=function(){try{var b=new Blob(["hi"]);return b.size==2}catch(e){return false}}();var blobBuilderSupported=BlobBuilder&&BlobBuilder.prototype.append&&BlobBuilder.prototype.getBlob;function BlobBuilderConstructor(ary,options){options=options||{};var bb=new BlobBuilder;for(var i=0;i<ary.length;i++){bb.append(ary[i])}return options.type?bb.getBlob(options.type):bb.getBlob()}module.exports=function(){if(blobSupported){return global.Blob}else if(blobBuilderSupported){return BlobBuilderConstructor}else{return undefined}}()}).call(this,typeof self!=="undefined"?self:typeof window!=="undefined"?window:{})},{}],27:[function(_dereq_,module,exports){(function(global){(function(root){var freeExports=typeof exports=="object"&&exports;var freeModule=typeof module=="object"&&module&&module.exports==freeExports&&module;var freeGlobal=typeof global=="object"&&global;if(freeGlobal.global===freeGlobal||freeGlobal.window===freeGlobal){root=freeGlobal}var stringFromCharCode=String.fromCharCode;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>=55296&&value<=56319&&counter<length){extra=string.charCodeAt(counter++);if((extra&64512)==56320){output.push(((value&1023)<<10)+(extra&1023)+65536)}else{output.push(value);counter--}}else{output.push(value)}}return output}function ucs2encode(array){var length=array.length;var index=-1;var value;var output="";while(++index<length){value=array[index];if(value>65535){value-=65536;output+=stringFromCharCode(value>>>10&1023|55296);value=56320|value&1023}output+=stringFromCharCode(value)}return output}function createByte(codePoint,shift){return stringFromCharCode(codePoint>>shift&63|128)}function encodeCodePoint(codePoint){if((codePoint&4294967168)==0){return stringFromCharCode(codePoint)}var symbol="";if((codePoint&4294965248)==0){symbol=stringFromCharCode(codePoint>>6&31|192)}else if((codePoint&4294901760)==0){symbol=stringFromCharCode(codePoint>>12&15|224);symbol+=createByte(codePoint,6)}else if((codePoint&4292870144)==0){symbol=stringFromCharCode(codePoint>>18&7|240);symbol+=createByte(codePoint,12);symbol+=createByte(codePoint,6)}symbol+=stringFromCharCode(codePoint&63|128);return symbol}function utf8encode(string){var codePoints=ucs2decode(string);var length=codePoints.length;var index=-1;var codePoint;var byteString="";while(++index<length){codePoint=codePoints[index];byteString+=encodeCodePoint(codePoint)}return byteString}function readContinuationByte(){if(byteIndex>=byteCount){throw Error("Invalid byte index")}var continuationByte=byteArray[byteIndex]&255;byteIndex++;if((continuationByte&192)==128){return continuationByte&63}throw Error("Invalid continuation byte")}function decodeSymbol(){var byte1;var byte2;var byte3;var byte4;var codePoint;if(byteIndex>byteCount){throw Error("Invalid byte index")}if(byteIndex==byteCount){return false}byte1=byteArray[byteIndex]&255;byteIndex++;if((byte1&128)==0){return byte1}if((byte1&224)==192){var byte2=readContinuationByte();codePoint=(byte1&31)<<6|byte2;if(codePoint>=128){return codePoint}else{throw Error("Invalid continuation byte")}}if((byte1&240)==224){byte2=readContinuationByte();byte3=readContinuationByte();codePoint=(byte1&15)<<12|byte2<<6|byte3;if(codePoint>=2048){return codePoint}else{throw Error("Invalid continuation byte")}}if((byte1&248)==240){byte2=readContinuationByte();byte3=readContinuationByte();byte4=readContinuationByte();codePoint=(byte1&15)<<18|byte2<<12|byte3<<6|byte4;if(codePoint>=65536&&codePoint<=1114111){return codePoint}}throw Error("Invalid UTF-8 detected")}var byteArray;var byteCount;var byteIndex;function utf8decode(byteString){byteArray=ucs2decode(byteString);byteCount=byteArray.length;byteIndex=0;var codePoints=[];var tmp;while((tmp=decodeSymbol())!==false){codePoints.push(tmp)}return ucs2encode(codePoints)}var utf8={version:"2.0.0",encode:utf8encode,decode:utf8decode};if(typeof define=="function"&&typeof define.amd=="object"&&define.amd){define(function(){return utf8})}else if(freeExports&&!freeExports.nodeType){if(freeModule){freeModule.exports=utf8}else{var object={};var hasOwnProperty=object.hasOwnProperty;for(var key in utf8){hasOwnProperty.call(utf8,key)&&(freeExports[key]=utf8[key])}}}else{root.utf8=utf8}})(this)}).call(this,typeof self!=="undefined"?self:typeof window!=="undefined"?window:{})},{}],28:[function(_dereq_,module,exports){(function(global){var rvalidchars=/^[\],:{}\s]*$/;var rvalidescape=/\\(?:["\\\/bfnrt]|u[0-9a-fA-F]{4})/g;var rvalidtokens=/"[^"\\\n\r]*"|true|false|null|-?\d+(?:\.\d*)?(?:[eE][+\-]?\d+)?/g;var rvalidbraces=/(?:^|:|,)(?:\s*\[)+/g;var rtrimLeft=/^\s+/;var rtrimRight=/\s+$/;module.exports=function parsejson(data){if("string"!=typeof data||!data){return null}data=data.replace(rtrimLeft,"").replace(rtrimRight,"");if(global.JSON&&JSON.parse){return JSON.parse(data)}if(rvalidchars.test(data.replace(rvalidescape,"@").replace(rvalidtokens,"]").replace(rvalidbraces,""))){return new Function("return "+data)()}}}).call(this,typeof self!=="undefined"?self:typeof window!=="undefined"?window:{})},{}],29:[function(_dereq_,module,exports){exports.encode=function(obj){var str="";for(var i in obj){if(obj.hasOwnProperty(i)){if(str.length)str+="&";str+=encodeURIComponent(i)+"="+encodeURIComponent(obj[i])}}return str};exports.decode=function(qs){var qry={};var pairs=qs.split("&");for(var i=0,l=pairs.length;i<l;i++){var pair=pairs[i].split("=");qry[decodeURIComponent(pair[0])]=decodeURIComponent(pair[1])}return qry}},{}],30:[function(_dereq_,module,exports){var re=/^(?:(?![^:@]+:[^:@\/]*@)(http|https|ws|wss):\/\/)?((?:(([^:@]*)(?::([^:@]*))?)?@)?((?:[a-f0-9]{0,4}:){2,7}[a-f0-9]{0,4}|[^:\/?#]*)(?::(\d*))?)(((\/(?:[^?#](?![^?#\/]*\.[^?#\/.]+(?:[?#]|$)))*\/?)?([^?#\/]*))(?:\?([^#]*))?(?:#(.*))?)/;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}},{}],31:[function(_dereq_,module,exports){var global=function(){return this}();var WebSocket=global.WebSocket||global.MozWebSocket;module.exports=WebSocket?ws:null;function ws(uri,protocols,opts){var instance;if(protocols){instance=new WebSocket(uri,protocols)}else{instance=new WebSocket(uri)}return instance}if(WebSocket)ws.prototype=WebSocket.prototype},{}],32:[function(_dereq_,module,exports){(function(global){var isArray=_dereq_("isarray");module.exports=hasBinary;function hasBinary(data){function _hasBinary(obj){if(!obj)return false;if(global.Buffer&&global.Buffer.isBuffer(obj)||global.ArrayBuffer&&obj instanceof ArrayBuffer||global.Blob&&obj instanceof Blob||global.File&&obj instanceof File){return true}if(isArray(obj)){for(var i=0;i<obj.length;i++){if(_hasBinary(obj[i])){return true}}}else if(obj&&"object"==typeof obj){if(obj.toJSON){obj=obj.toJSON()}for(var key in obj){if(obj.hasOwnProperty(key)&&_hasBinary(obj[key])){return true}}}return false}return _hasBinary(data)}}).call(this,typeof self!=="undefined"?self:typeof window!=="undefined"?window:{})},{isarray:33}],33:[function(_dereq_,module,exports){module.exports=Array.isArray||function(arr){return Object.prototype.toString.call(arr)=="[object Array]"}},{}],34:[function(_dereq_,module,exports){var global=_dereq_("global");try{module.exports="XMLHttpRequest"in global&&"withCredentials"in new global.XMLHttpRequest}catch(err){module.exports=false}},{global:35}],35:[function(_dereq_,module,exports){module.exports=function(){return this}()},{}],36:[function(_dereq_,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}},{}],37:[function(_dereq_,module,exports){var has=Object.prototype.hasOwnProperty;exports.keys=Object.keys||function(obj){var keys=[];for(var key in obj){if(has.call(obj,key)){keys.push(key)}}return keys};exports.values=function(obj){var vals=[];for(var key in obj){if(has.call(obj,key)){vals.push(obj[key])}}return vals};exports.merge=function(a,b){for(var key in b){if(has.call(b,key)){a[key]=b[key]}}return a};exports.length=function(obj){return exports.keys(obj).length};exports.isEmpty=function(obj){return 0==exports.length(obj)}},{}],38:[function(_dereq_,module,exports){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 m=re.exec(str||""),uri={},i=14;while(i--){uri[parts[i]]=m[i]||""}return uri}},{}],39:[function(_dereq_,module,exports){(function(global){var isArray=_dereq_("isarray");var isBuf=_dereq_("./is-buffer");exports.deconstructPacket=function(packet){var buffers=[];var packetData=packet.data;function _deconstructPacket(data){if(!data)return data;if(isBuf(data)){var placeholder={_placeholder:true,num:buffers.length};buffers.push(data);return placeholder}else if(isArray(data)){var newData=new Array(data.length);for(var i=0;i<data.length;i++){newData[i]=_deconstructPacket(data[i])}return newData}else if("object"==typeof data&&!(data instanceof Date)){var newData={};for(var key in data){newData[key]=_deconstructPacket(data[key])}return newData}return data}var pack=packet;pack.data=_deconstructPacket(packetData);pack.attachments=buffers.length;return{packet:pack,buffers:buffers}};exports.reconstructPacket=function(packet,buffers){var curPlaceHolder=0;function _reconstructPacket(data){if(data&&data._placeholder){var buf=buffers[data.num];return buf
3 | }else if(isArray(data)){for(var i=0;i<data.length;i++){data[i]=_reconstructPacket(data[i])}return data}else if(data&&"object"==typeof data){for(var key in data){data[key]=_reconstructPacket(data[key])}return data}return data}packet.data=_reconstructPacket(packet.data);packet.attachments=undefined;return packet};exports.removeBlobs=function(data,callback){function _removeBlobs(obj,curKey,containingObject){if(!obj)return obj;if(global.Blob&&obj instanceof Blob||global.File&&obj instanceof File){pendingBlobs++;var fileReader=new FileReader;fileReader.onload=function(){if(containingObject){containingObject[curKey]=this.result}else{bloblessData=this.result}if(!--pendingBlobs){callback(bloblessData)}};fileReader.readAsArrayBuffer(obj)}else if(isArray(obj)){for(var i=0;i<obj.length;i++){_removeBlobs(obj[i],i,obj)}}else if(obj&&"object"==typeof obj&&!isBuf(obj)){for(var key in obj){_removeBlobs(obj[key],key,obj)}}}var pendingBlobs=0;var bloblessData=data;_removeBlobs(bloblessData);if(!pendingBlobs){callback(bloblessData)}}}).call(this,typeof self!=="undefined"?self:typeof window!=="undefined"?window:{})},{"./is-buffer":41,isarray:42}],40:[function(_dereq_,module,exports){var debug=_dereq_("debug")("socket.io-parser");var json=_dereq_("json3");var isArray=_dereq_("isarray");var Emitter=_dereq_("component-emitter");var binary=_dereq_("./binary");var isBuf=_dereq_("./is-buffer");exports.protocol=4;exports.types=["CONNECT","DISCONNECT","EVENT","BINARY_EVENT","ACK","BINARY_ACK","ERROR"];exports.CONNECT=0;exports.DISCONNECT=1;exports.EVENT=2;exports.ACK=3;exports.ERROR=4;exports.BINARY_EVENT=5;exports.BINARY_ACK=6;exports.Encoder=Encoder;exports.Decoder=Decoder;function Encoder(){}Encoder.prototype.encode=function(obj,callback){debug("encoding packet %j",obj);if(exports.BINARY_EVENT==obj.type||exports.BINARY_ACK==obj.type){encodeAsBinary(obj,callback)}else{var encoding=encodeAsString(obj);callback([encoding])}};function encodeAsString(obj){var str="";var nsp=false;str+=obj.type;if(exports.BINARY_EVENT==obj.type||exports.BINARY_ACK==obj.type){str+=obj.attachments;str+="-"}if(obj.nsp&&"/"!=obj.nsp){nsp=true;str+=obj.nsp}if(null!=obj.id){if(nsp){str+=",";nsp=false}str+=obj.id}if(null!=obj.data){if(nsp)str+=",";str+=json.stringify(obj.data)}debug("encoded %j as %s",obj,str);return str}function encodeAsBinary(obj,callback){function writeEncoding(bloblessData){var deconstruction=binary.deconstructPacket(bloblessData);var pack=encodeAsString(deconstruction.packet);var buffers=deconstruction.buffers;buffers.unshift(pack);callback(buffers)}binary.removeBlobs(obj,writeEncoding)}function Decoder(){this.reconstructor=null}Emitter(Decoder.prototype);Decoder.prototype.add=function(obj){var packet;if("string"==typeof obj){packet=decodeString(obj);if(exports.BINARY_EVENT==packet.type||exports.BINARY_ACK==packet.type){this.reconstructor=new BinaryReconstructor(packet);if(this.reconstructor.reconPack.attachments==0){this.emit("decoded",packet)}}else{this.emit("decoded",packet)}}else if(isBuf(obj)||obj.base64){if(!this.reconstructor){throw new Error("got binary data when not reconstructing a packet")}else{packet=this.reconstructor.takeBinaryData(obj);if(packet){this.reconstructor=null;this.emit("decoded",packet)}}}else{throw new Error("Unknown type: "+obj)}};function decodeString(str){var p={};var i=0;p.type=Number(str.charAt(0));if(null==exports.types[p.type])return error();if(exports.BINARY_EVENT==p.type||exports.BINARY_ACK==p.type){p.attachments="";while(str.charAt(++i)!="-"){p.attachments+=str.charAt(i)}p.attachments=Number(p.attachments)}if("/"==str.charAt(i+1)){p.nsp="";while(++i){var c=str.charAt(i);if(","==c)break;p.nsp+=c;if(i+1==str.length)break}}else{p.nsp="/"}var next=str.charAt(i+1);if(""!=next&&Number(next)==next){p.id="";while(++i){var c=str.charAt(i);if(null==c||Number(c)!=c){--i;break}p.id+=str.charAt(i);if(i+1==str.length)break}p.id=Number(p.id)}if(str.charAt(++i)){try{p.data=json.parse(str.substr(i))}catch(e){return error()}}debug("decoded %s as %j",str,p);return p}Decoder.prototype.destroy=function(){if(this.reconstructor){this.reconstructor.finishedReconstruction()}};function BinaryReconstructor(packet){this.reconPack=packet;this.buffers=[]}BinaryReconstructor.prototype.takeBinaryData=function(binData){this.buffers.push(binData);if(this.buffers.length==this.reconPack.attachments){var packet=binary.reconstructPacket(this.reconPack,this.buffers);this.finishedReconstruction();return packet}return null};BinaryReconstructor.prototype.finishedReconstruction=function(){this.reconPack=null;this.buffers=[]};function error(data){return{type:exports.ERROR,data:"parser error"}}},{"./binary":39,"./is-buffer":41,"component-emitter":8,debug:9,isarray:42,json3:43}],41:[function(_dereq_,module,exports){(function(global){module.exports=isBuf;function isBuf(obj){return global.Buffer&&global.Buffer.isBuffer(obj)||global.ArrayBuffer&&obj instanceof ArrayBuffer}}).call(this,typeof self!=="undefined"?self:typeof window!=="undefined"?window:{})},{}],42:[function(_dereq_,module,exports){module.exports=_dereq_(33)},{}],43:[function(_dereq_,module,exports){(function(window){var getClass={}.toString,isProperty,forEach,undef;var isLoader=typeof define==="function"&&define.amd;var nativeJSON=typeof JSON=="object"&&JSON;var JSON3=typeof exports=="object"&&exports&&!exports.nodeType&&exports;if(JSON3&&nativeJSON){JSON3.stringify=nativeJSON.stringify;JSON3.parse=nativeJSON.parse}else{JSON3=window.JSON=nativeJSON||{}}var isExtended=new Date(-0xc782b5b800cec);try{isExtended=isExtended.getUTCFullYear()==-109252&&isExtended.getUTCMonth()===0&&isExtended.getUTCDate()===1&&isExtended.getUTCHours()==10&&isExtended.getUTCMinutes()==37&&isExtended.getUTCSeconds()==6&&isExtended.getUTCMilliseconds()==708}catch(exception){}function has(name){if(has[name]!==undef){return has[name]}var isSupported;if(name=="bug-string-char-index"){isSupported="a"[0]!="a"}else if(name=="json"){isSupported=has("json-stringify")&&has("json-parse")}else{var value,serialized='{"a":[1,true,false,null,"\\u0000\\b\\n\\f\\r\\t"]}';if(name=="json-stringify"){var stringify=JSON3.stringify,stringifySupported=typeof stringify=="function"&&isExtended;if(stringifySupported){(value=function(){return 1}).toJSON=value;try{stringifySupported=stringify(0)==="0"&&stringify(new Number)==="0"&&stringify(new String)=='""'&&stringify(getClass)===undef&&stringify(undef)===undef&&stringify()===undef&&stringify(value)==="1"&&stringify([value])=="[1]"&&stringify([undef])=="[null]"&&stringify(null)=="null"&&stringify([undef,getClass,null])=="[null,null,null]"&&stringify({a:[value,true,false,null,"\x00\b\n\f\r	"]})==serialized&&stringify(null,value)==="1"&&stringify([1,2],null,1)=="[\n 1,\n 2\n]"&&stringify(new Date(-864e13))=='"-271821-04-20T00:00:00.000Z"'&&stringify(new Date(864e13))=='"+275760-09-13T00:00:00.000Z"'&&stringify(new Date(-621987552e5))=='"-000001-01-01T00:00:00.000Z"'&&stringify(new Date(-1))=='"1969-12-31T23:59:59.999Z"'}catch(exception){stringifySupported=false}}isSupported=stringifySupported}if(name=="json-parse"){var parse=JSON3.parse;if(typeof parse=="function"){try{if(parse("0")===0&&!parse(false)){value=parse(serialized);var parseSupported=value["a"].length==5&&value["a"][0]===1;if(parseSupported){try{parseSupported=!parse('"	"')}catch(exception){}if(parseSupported){try{parseSupported=parse("01")!==1}catch(exception){}}if(parseSupported){try{parseSupported=parse("1.")!==1}catch(exception){}}}}}catch(exception){parseSupported=false}}isSupported=parseSupported}}return has[name]=!!isSupported}if(!has("json")){var functionClass="[object Function]";var dateClass="[object Date]";var numberClass="[object Number]";var stringClass="[object String]";var arrayClass="[object Array]";var booleanClass="[object Boolean]";var charIndexBuggy=has("bug-string-char-index");if(!isExtended){var floor=Math.floor;var Months=[0,31,59,90,120,151,181,212,243,273,304,334];var getDay=function(year,month){return Months[month]+365*(year-1970)+floor((year-1969+(month=+(month>1)))/4)-floor((year-1901+month)/100)+floor((year-1601+month)/400)}}if(!(isProperty={}.hasOwnProperty)){isProperty=function(property){var members={},constructor;if((members.__proto__=null,members.__proto__={toString:1},members).toString!=getClass){isProperty=function(property){var original=this.__proto__,result=property in(this.__proto__=null,this);this.__proto__=original;return result}}else{constructor=members.constructor;isProperty=function(property){var parent=(this.constructor||constructor).prototype;return property in this&&!(property in parent&&this[property]===parent[property])}}members=null;return isProperty.call(this,property)}}var PrimitiveTypes={"boolean":1,number:1,string:1,undefined:1};var isHostType=function(object,property){var type=typeof object[property];return type=="object"?!!object[property]:!PrimitiveTypes[type]};forEach=function(object,callback){var size=0,Properties,members,property;(Properties=function(){this.valueOf=0}).prototype.valueOf=0;members=new Properties;for(property in members){if(isProperty.call(members,property)){size++}}Properties=members=null;if(!size){members=["valueOf","toString","toLocaleString","propertyIsEnumerable","isPrototypeOf","hasOwnProperty","constructor"];forEach=function(object,callback){var isFunction=getClass.call(object)==functionClass,property,length;var hasProperty=!isFunction&&typeof object.constructor!="function"&&isHostType(object,"hasOwnProperty")?object.hasOwnProperty:isProperty;for(property in object){if(!(isFunction&&property=="prototype")&&hasProperty.call(object,property)){callback(property)}}for(length=members.length;property=members[--length];hasProperty.call(object,property)&&callback(property));}}else if(size==2){forEach=function(object,callback){var members={},isFunction=getClass.call(object)==functionClass,property;for(property in object){if(!(isFunction&&property=="prototype")&&!isProperty.call(members,property)&&(members[property]=1)&&isProperty.call(object,property)){callback(property)}}}}else{forEach=function(object,callback){var isFunction=getClass.call(object)==functionClass,property,isConstructor;for(property in object){if(!(isFunction&&property=="prototype")&&isProperty.call(object,property)&&!(isConstructor=property==="constructor")){callback(property)}}if(isConstructor||isProperty.call(object,property="constructor")){callback(property)}}}return forEach(object,callback)};if(!has("json-stringify")){var Escapes={92:"\\\\",34:'\\"',8:"\\b",12:"\\f",10:"\\n",13:"\\r",9:"\\t"};var leadingZeroes="000000";var toPaddedString=function(width,value){return(leadingZeroes+(value||0)).slice(-width)};var unicodePrefix="\\u00";var quote=function(value){var result='"',index=0,length=value.length,isLarge=length>10&&charIndexBuggy,symbols;if(isLarge){symbols=value.split("")}for(;index<length;index++){var charCode=value.charCodeAt(index);switch(charCode){case 8:case 9:case 10:case 12:case 13:case 34:case 92:result+=Escapes[charCode];break;default:if(charCode<32){result+=unicodePrefix+toPaddedString(2,charCode.toString(16));break}result+=isLarge?symbols[index]:charIndexBuggy?value.charAt(index):value[index]}}return result+'"'};var serialize=function(property,object,callback,properties,whitespace,indentation,stack){var value,className,year,month,date,time,hours,minutes,seconds,milliseconds,results,element,index,length,prefix,result;try{value=object[property]}catch(exception){}if(typeof value=="object"&&value){className=getClass.call(value);if(className==dateClass&&!isProperty.call(value,"toJSON")){if(value>-1/0&&value<1/0){if(getDay){date=floor(value/864e5);for(year=floor(date/365.2425)+1970-1;getDay(year+1,0)<=date;year++);for(month=floor((date-getDay(year,0))/30.42);getDay(year,month+1)<=date;month++);date=1+date-getDay(year,month);time=(value%864e5+864e5)%864e5;hours=floor(time/36e5)%24;minutes=floor(time/6e4)%60;seconds=floor(time/1e3)%60;milliseconds=time%1e3}else{year=value.getUTCFullYear();month=value.getUTCMonth();date=value.getUTCDate();hours=value.getUTCHours();minutes=value.getUTCMinutes();seconds=value.getUTCSeconds();milliseconds=value.getUTCMilliseconds()}value=(year<=0||year>=1e4?(year<0?"-":"+")+toPaddedString(6,year<0?-year:year):toPaddedString(4,year))+"-"+toPaddedString(2,month+1)+"-"+toPaddedString(2,date)+"T"+toPaddedString(2,hours)+":"+toPaddedString(2,minutes)+":"+toPaddedString(2,seconds)+"."+toPaddedString(3,milliseconds)+"Z"}else{value=null}}else if(typeof value.toJSON=="function"&&(className!=numberClass&&className!=stringClass&&className!=arrayClass||isProperty.call(value,"toJSON"))){value=value.toJSON(property)}}if(callback){value=callback.call(object,property,value)}if(value===null){return"null"}className=getClass.call(value);if(className==booleanClass){return""+value}else if(className==numberClass){return value>-1/0&&value<1/0?""+value:"null"}else if(className==stringClass){return quote(""+value)}if(typeof value=="object"){for(length=stack.length;length--;){if(stack[length]===value){throw TypeError()}}stack.push(value);results=[];prefix=indentation;indentation+=whitespace;if(className==arrayClass){for(index=0,length=value.length;index<length;index++){element=serialize(index,value,callback,properties,whitespace,indentation,stack);results.push(element===undef?"null":element)}result=results.length?whitespace?"[\n"+indentation+results.join(",\n"+indentation)+"\n"+prefix+"]":"["+results.join(",")+"]":"[]"}else{forEach(properties||value,function(property){var element=serialize(property,value,callback,properties,whitespace,indentation,stack);if(element!==undef){results.push(quote(property)+":"+(whitespace?" ":"")+element)}});result=results.length?whitespace?"{\n"+indentation+results.join(",\n"+indentation)+"\n"+prefix+"}":"{"+results.join(",")+"}":"{}"}stack.pop();return result}};JSON3.stringify=function(source,filter,width){var whitespace,callback,properties,className;if(typeof filter=="function"||typeof filter=="object"&&filter){if((className=getClass.call(filter))==functionClass){callback=filter}else if(className==arrayClass){properties={};for(var index=0,length=filter.length,value;index<length;value=filter[index++],(className=getClass.call(value),className==stringClass||className==numberClass)&&(properties[value]=1));}}if(width){if((className=getClass.call(width))==numberClass){if((width-=width%1)>0){for(whitespace="",width>10&&(width=10);whitespace.length<width;whitespace+=" ");}}else if(className==stringClass){whitespace=width.length<=10?width:width.slice(0,10)}}return serialize("",(value={},value[""]=source,value),callback,properties,whitespace,"",[])}}if(!has("json-parse")){var fromCharCode=String.fromCharCode;var Unescapes={92:"\\",34:'"',47:"/",98:"\b",116:"	",110:"\n",102:"\f",114:"\r"};var Index,Source;var abort=function(){Index=Source=null;throw SyntaxError()};var lex=function(){var source=Source,length=source.length,value,begin,position,isSigned,charCode;while(Index<length){charCode=source.charCodeAt(Index);switch(charCode){case 9:case 10:case 13:case 32:Index++;break;case 123:case 125:case 91:case 93:case 58:case 44:value=charIndexBuggy?source.charAt(Index):source[Index];Index++;return value;case 34:for(value="@",Index++;Index<length;){charCode=source.charCodeAt(Index);if(charCode<32){abort()}else if(charCode==92){charCode=source.charCodeAt(++Index);switch(charCode){case 92:case 34:case 47:case 98:case 116:case 110:case 102:case 114:value+=Unescapes[charCode];Index++;break;case 117:begin=++Index;for(position=Index+4;Index<position;Index++){charCode=source.charCodeAt(Index);if(!(charCode>=48&&charCode<=57||charCode>=97&&charCode<=102||charCode>=65&&charCode<=70)){abort()}}value+=fromCharCode("0x"+source.slice(begin,Index));break;default:abort()}}else{if(charCode==34){break}charCode=source.charCodeAt(Index);begin=Index;while(charCode>=32&&charCode!=92&&charCode!=34){charCode=source.charCodeAt(++Index)}value+=source.slice(begin,Index)}}if(source.charCodeAt(Index)==34){Index++;return value}abort();default:begin=Index;if(charCode==45){isSigned=true;charCode=source.charCodeAt(++Index)}if(charCode>=48&&charCode<=57){if(charCode==48&&(charCode=source.charCodeAt(Index+1),charCode>=48&&charCode<=57)){abort()}isSigned=false;for(;Index<length&&(charCode=source.charCodeAt(Index),charCode>=48&&charCode<=57);Index++);if(source.charCodeAt(Index)==46){position=++Index;for(;position<length&&(charCode=source.charCodeAt(position),charCode>=48&&charCode<=57);position++);if(position==Index){abort()}Index=position}charCode=source.charCodeAt(Index);if(charCode==101||charCode==69){charCode=source.charCodeAt(++Index);if(charCode==43||charCode==45){Index++}for(position=Index;position<length&&(charCode=source.charCodeAt(position),charCode>=48&&charCode<=57);position++);if(position==Index){abort()}Index=position}return+source.slice(begin,Index)}if(isSigned){abort()}if(source.slice(Index,Index+4)=="true"){Index+=4;return true}else if(source.slice(Index,Index+5)=="false"){Index+=5;return false}else if(source.slice(Index,Index+4)=="null"){Index+=4;return null}abort()}}return"$"};var get=function(value){var results,hasMembers;if(value=="$"){abort()}if(typeof value=="string"){if((charIndexBuggy?value.charAt(0):value[0])=="@"){return value.slice(1)}if(value=="["){results=[];for(;;hasMembers||(hasMembers=true)){value=lex();if(value=="]"){break}if(hasMembers){if(value==","){value=lex();if(value=="]"){abort()}}else{abort()}}if(value==","){abort()}results.push(get(value))}return results}else if(value=="{"){results={};for(;;hasMembers||(hasMembers=true)){value=lex();if(value=="}"){break}if(hasMembers){if(value==","){value=lex();if(value=="}"){abort()}}else{abort()}}if(value==","||typeof value!="string"||(charIndexBuggy?value.charAt(0):value[0])!="@"||lex()!=":"){abort()}results[value.slice(1)]=get(lex())}return results}abort()}return value};var update=function(source,property,callback){var element=walk(source,property,callback);if(element===undef){delete source[property]}else{source[property]=element}};var walk=function(source,property,callback){var value=source[property],length;if(typeof value=="object"&&value){if(getClass.call(value)==arrayClass){for(length=value.length;length--;){update(value,length,callback)}}else{forEach(value,function(property){update(value,property,callback)})}}return callback.call(source,property,value)};JSON3.parse=function(source,callback){var result,value;Index=0;Source=""+source;result=get(lex());if(lex()!="$"){abort()}Index=Source=null;return callback&&getClass.call(callback)==functionClass?walk((value={},value[""]=result,value),"",callback):result}}}if(isLoader){define(function(){return JSON3})}})(this)},{}],44:[function(_dereq_,module,exports){module.exports=toArray;function toArray(list,index){var array=[];index=index||0;for(var i=index||0;i<list.length;i++){array[i-index]=list[i]}return array}},{}]},{},[1])(1)});


--------------------------------------------------------------------------------
/client/workers/EmsArgs.js:
--------------------------------------------------------------------------------
  1 | /*!
  2 |  * Copyright © 2014 Rainer Rillke <lastname>@wikipedia.de
  3 |  *
  4 |  * Permission is hereby granted, free of charge, to any person obtaining a copy
  5 |  * of this software and associated documentation files (the "Software"), to
  6 |  * deal in the Software without restriction, including without limitation the
  7 |  * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
  8 |  * sell copies of the Software, and to permit persons to whom the Software is
  9 |  * furnished to do so, subject to the following conditions:
 10 |  *
 11 |  * The above copyright notice and this permission notice shall be included in
 12 |  * all copies or substantial portions of the Software.
 13 |  *
 14 |  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 15 |  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 16 |  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 17 |  * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 18 |  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
 19 |  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
 20 |  * IN THE SOFTWARE.
 21 |  */
 22 | 
 23 | /*global self: false, Module:false */
 24 | /*jslint vars: false,  white: false */
 25 | /*jshint onevar: false, white: false, laxbreak: true */
 26 | ( function( global ) {
 27 | 	'use strict';
 28 | 
 29 | 	/**
 30 | 	 * Emscripten C function arguments utitlites
 31 | 	 *  @class EmsArgs
 32 | 	 *  @singleton
 33 | 	 */
 34 | 	global.EmsArgs = {
 35 | 		/**
 36 | 		 * Read a Blob as ArrayBuffer and invoke the supplied callback when completed
 37 | 		 *
 38 | 		 *  @param {Blob}           blob  Blob to be read
 39 | 		 *  @param {Function}         cb  Callback invoked upon completion of the
 40 | 		 *                                operation
 41 | 		 *  @param {ArrayBuffer} cb.data  ArrayBuffer containing a copy of the Blob data
 42 | 		 */
 43 | 		readBlobAsArrayBuffer: function readBlobAsArrayBuffer( blob, cb ) {
 44 | 			var frs, fr;
 45 | 
 46 | 			if ( global.FileReaderSync ) {
 47 | 				frs = new FileReaderSync();
 48 | 				// Ensure ASYNC callback
 49 | 				// TODO: Investigate why application crashes (exit(1))
 50 | 				// when using synchroneous callback here
 51 | 				setTimeout( function() {
 52 | 					cb( frs.readAsArrayBuffer( blob ) );
 53 | 				}, 5 );
 54 | 				return;
 55 | 			}
 56 | 
 57 | 			fr = new FileReader();
 58 | 			fr.addEventListener( 'loadend', function() {
 59 | 				cb( fr.result );
 60 | 			} );
 61 | 			fr.readAsArrayBuffer( blob );
 62 | 		},
 63 | 
 64 | 		
 65 | 		/**
 66 | 		 *  @param {string}           s  String to be UTF-8 encoded as buffer
 67 | 		 *  @param {Function}        cb  Callback when string has been converted
 68 | 		 *  @param {number} cb.sPointer  Pointer to the string
 69 | 		 */
 70 | 		getBufferFor: function( s, cb ) {
 71 | 			var b = new Blob( [ s + '\0' ] );
 72 | 			global.EmsArgs.readBlobAsArrayBuffer( b, function( res ) {
 73 | 				var arg = new Uint8Array( res );
 74 | 				var dataPtr = Module._malloc( arg.length * arg.BYTES_PER_ELEMENT );
 75 | 
 76 | 				// Copy data to Emscripten heap
 77 | 				var dataHeap = new Uint8Array( Module.HEAPU8.buffer, dataPtr, arg.length * arg.BYTES_PER_ELEMENT );
 78 | 				dataHeap.set( arg );
 79 | 				cb( dataPtr );
 80 | 			} );
 81 | 		},
 82 | 
 83 | 		/**
 84 | 		 *  @param {Array}            args  Arguments to be passed to the C function.
 85 | 		 *  @param {Function}           cb  Callback when arguments were converted
 86 | 		 *  @param {number} cb.argsPointer  A pointer to the the Array of Pointers of arguments
 87 | 		 *                                  in the Emscripten Heap (**argv)
 88 | 		 */
 89 | 		cArgsPointer: function( args, cb ) {
 90 | 			var pointers = new Uint32Array( args.length ),
 91 | 				nextArg, processedArg;
 92 | 
 93 | 			args = args.slice( 0 );
 94 | 
 95 | 			processedArg = function( sPointer ) {
 96 | 				pointers[ pointers.length - args.length - 1 ] = sPointer;
 97 | 				nextArg();
 98 | 			};
 99 | 
100 | 			nextArg = function() {
101 | 				if ( args.length ) {
102 | 					global.EmsArgs.getBufferFor( args.shift(), processedArg );
103 | 				} else {
104 | 					var nPointerBytes = pointers.length * pointers.BYTES_PER_ELEMENT;
105 | 					var pointerPtr = Module._malloc( nPointerBytes );
106 | 					var pointerHeap = new Uint8Array( Module.HEAPU8.buffer, pointerPtr, nPointerBytes );
107 | 					pointerHeap.set( new Uint8Array( pointers.buffer ) );
108 | 					cb( pointerHeap );
109 | 				}
110 | 			};
111 | 			nextArg();
112 | 		}
113 | 	};
114 | 
115 | }( self ) );
116 | 


--------------------------------------------------------------------------------
/client/workers/EmsWorkerProxy.js:
--------------------------------------------------------------------------------
 1 | /*!
 2 |  * Copyright © 2014 Rainer Rillke <lastname>@wikipedia.de
 3 |  *
 4 |  * Permission is hereby granted, free of charge, to any person obtaining a copy
 5 |  * of this software and associated documentation files (the "Software"), to
 6 |  * deal in the Software without restriction, including without limitation the
 7 |  * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
 8 |  * sell copies of the Software, and to permit persons to whom the Software is
 9 |  * furnished to do so, subject to the following conditions:
10 |  *
11 |  * The above copyright notice and this permission notice shall be included in
12 |  * all copies or substantial portions of the Software.
13 |  *
14 |  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15 |  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16 |  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
17 |  * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
18 |  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
19 |  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
20 |  * IN THE SOFTWARE.
21 |  */
22 | 
23 | /*global self: false, OpusEncoder: false, importScripts: false */
24 | /*jslint vars: false,  white: false */
25 | /*jshint onevar: false, white: false, laxbreak: true */
26 | ( function( global ) {
27 | 	'use strict';
28 | 
29 | 	/**
30 | 	 * Worker proxy implementing communication between worker and website
31 | 	 *  @class EmsWorkerProxy
32 | 	 *  @singleton
33 | 	 */
34 | 	global.EmsWorkerProxy = {
35 | 		init: function() {
36 | 			global.onmessage = function( e ) {
37 | 				switch ( e.data.command ) {
38 | 					case 'ping':
39 | 						global.postMessage( { reply: 'pong' } );
40 | 						break;
41 | 					case 'encode':
42 | 						if ( !global.OpusEncoder )  {
43 | 							importScripts( 'OpusEncoder.js' );
44 | 						}
45 | 						OpusEncoder.encode( e.data );
46 | 						break;
47 | 					case 'prefetch':
48 | 						if ( !global.OpusEncoder )  {
49 | 							importScripts( 'OpusEncoder.js' );
50 | 							OpusEncoder.prefetch( e.data );
51 | 						}
52 | 						break;
53 | 				}
54 | 			};
55 | 		}
56 | 	};
57 | 	global.EmsWorkerProxy.init();
58 | 
59 | }( self ) );
60 | 


--------------------------------------------------------------------------------
/client/workers/OpusEncoder.js:
--------------------------------------------------------------------------------
  1 | /*!
  2 |  * Copyright © 2014 Rainer Rillke <lastname>@wikipedia.de
  3 |  *
  4 |  * Permission is hereby granted, free of charge, to any person obtaining a copy
  5 |  * of this software and associated documentation files (the "Software"), to
  6 |  * deal in the Software without restriction, including without limitation the
  7 |  * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
  8 |  * sell copies of the Software, and to permit persons to whom the Software is
  9 |  * furnished to do so, subject to the following conditions:
 10 |  *
 11 |  * The above copyright notice and this permission notice shall be included in
 12 |  * all copies or substantial portions of the Software.
 13 |  *
 14 |  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 15 |  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 16 |  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 17 |  * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 18 |  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
 19 |  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
 20 |  * IN THE SOFTWARE.
 21 |  */
 22 | 
 23 | /*global self: false, Runtime: false, OpusEncoder: false, Module: false, FS: false, EmsArgs: false, console: false */
 24 | /*jslint vars: false,  white: false */
 25 | /*jshint onevar: false, white: false, laxbreak: true, worker: true, strict: false */
 26 | 
 27 | ( function( global ) {
 28 | 	'use strict';
 29 | 	var MainScriptLoader,
 30 | 		downloadCompleted,
 31 | 		downloadError;
 32 | 
 33 | 	/**
 34 | 	 * Manages encoding and progress notifications
 35 | 	 *  @class OpusEncoder
 36 | 	 *  @singleton
 37 | 	 */
 38 | 	global.OpusEncoder = {
 39 | 		encode: function( data ) {
 40 | 			OpusEncoder.setUpLogging( data );
 41 | 			OpusEncoder.monitorWWDownload();
 42 | 			MainScriptLoader.downloadAndExecute( data, function() {
 43 | 				// Before execute main script ...
 44 | 				if ( !global.EmsArgs ){
 45 | 					importScripts( 'EmsArgs.js' );
 46 | 				}
 47 | 				OpusEncoder.setUpModule( data );
 48 | 			}, function() {
 49 | 				// After the main script was executed ...
 50 | 				MainScriptLoader.whenInitialized( function() {
 51 | 					OpusEncoder._encode( data );
 52 | 				} );
 53 | 			} );
 54 | 		},
 55 | 
 56 | 		prefetch: function( data ) {
 57 | 			if ( global.Module && global.EmsArgs && global.Runtime ) {
 58 | 				return;
 59 | 			}
 60 | 			OpusEncoder.setUpLogging( data );
 61 | 			MainScriptLoader.xhrload( data );
 62 | 			importScripts( 'EmsArgs.js' );
 63 | 		},
 64 | 
 65 | 		setUpLogging: function( data ) {
 66 | 			if ( !global.console ) global.console = {};
 67 | 			console.log = function() {
 68 | 				( data.log || OpusEncoder.log )(
 69 | 					Array.prototype.slice.call( arguments )
 70 | 				);
 71 | 			};
 72 | 
 73 | 			console.error = function() {
 74 | 				( data.err || OpusEncoder.err )(
 75 | 					Array.prototype.slice.call( arguments )
 76 | 				);
 77 | 			};
 78 | 		},
 79 | 
 80 | 		monitorWWDownload: function() {
 81 | 			var lastLog = 0;
 82 | 
 83 | 			MainScriptLoader.onDownloadComplete = function() {
 84 | 				console.log( 'Worker downloaded successfully.' );
 85 | 			};
 86 | 
 87 | 			MainScriptLoader.onDownloadProgress = function( loaded, total ) {
 88 | 				var now = Date.now(),
 89 | 					diff = now - lastLog;
 90 | 
 91 | 				if ( diff > 450 ) {
 92 | 					lastLog = now;
 93 | 					console.log( 'Downloading Opus Encoder code ... ' + Math.round( 100 * loaded / total, 2) + '%' );
 94 | 				}
 95 | 			};
 96 | 			MainScriptLoader.onDownloadError = function( err ) {
 97 | 				console.log( 'Failed to download worker utilizing XHR.\n' + err + '\nTrying importScripts() ...' );
 98 | 			};
 99 | 		},
100 | 
101 | 		setUpModule: function( data ) {
102 | 			/*jshint forin:false */
103 | 			var totalFileLength = 0,
104 | 				filename, memRequired;
105 | 
106 | 			for ( filename in data.fileData ) {
107 | 				if ( !data.fileData.hasOwnProperty( filename ) ) {
108 | 					return;
109 | 				}
110 | 				var fileData = data.fileData[filename];
111 | 
112 | 				totalFileLength += fileData.length;
113 | 			}
114 | 
115 | 			memRequired = totalFileLength * 2 + 0x1000000;
116 | 			// Currently "The asm.js rules specify that the heap size must be
117 | 			// a multiple of 16MB or a power of two. Minimum heap size is 64KB"
118 | 			// If we don't correct it here asm will dump errors on us while adjusting
119 | 			// the number but we would ignore following the error and shut down the
120 | 			// worker due to this error
121 | 			memRequired = memRequired - ( memRequired % 0x1000000 ) + 0x1000000;
122 | 
123 | 			global.Module = {
124 | 				TOTAL_MEMORY: memRequired,
125 | 				_main: MainScriptLoader.initialized,
126 | 				noExitRuntime: true,
127 | 				preRun: OpusEncoder.setUpFilesystem,
128 | 				printErr: console.error.bind( console ),
129 | 				monitorRunDependencies: function( runDeps ) {
130 | 					console.log( 'Loading run dependencies. Outstanding: ' + runDeps );
131 | 				},
132 | 				locateFile: function( memFile ) {
133 | 					return memFile.replace( /^opusenc\.(html|js)\.mem$/, 'opusenc.data.js' );
134 | 				}
135 | 			};
136 | 		},
137 | 
138 | 		setUpFilesystem: function() {
139 | 			var infoBuff = '',
140 | 				errBuff = '',
141 | 				lastInfoFlush = Date.now(),
142 | 				lastErrFlush = Date.now(),
143 | 				infoTimeout, errTimeout, flushInfo, flushErr;
144 | 
145 | 			OpusEncoder.flushInfo = flushInfo = function() {
146 | 				clearTimeout( infoTimeout );
147 | 				lastInfoFlush = Date.now();
148 | 				if ( infoBuff.replace( /\s*/g, '' ) ) {
149 | 					console.log( infoBuff );
150 | 					infoBuff = '';
151 | 				}
152 | 			};
153 | 			OpusEncoder.flushErr = flushErr = function() {
154 | 				clearTimeout( errTimeout );
155 | 				lastErrFlush = Date.now();
156 | 				if ( errBuff.replace( /\s*/g, '' ) ) {
157 | 					console.log( errBuff );
158 | 					errBuff = '';
159 | 				}
160 | 			};
161 | 
162 | 			FS.init( global.prompt || function() {
163 | 				console.log( 'Input requested from within web worker. Returning empty string.' );
164 | 				return '';
165 | 			}, function( infoChar ) {
166 | 				infoBuff += String.fromCharCode( infoChar );
167 | 				clearTimeout( infoTimeout );
168 | 				infoTimeout = setTimeout( flushInfo, 5 );
169 | 				if ( lastInfoFlush + 700 < Date.now() ) {
170 | 					flushInfo();
171 | 				}
172 | 			}, function( errChar ) {
173 | 				errBuff += String.fromCharCode( errChar );
174 | 				clearTimeout( errTimeout );
175 | 				errTimeout = setTimeout( flushErr, 5 );
176 | 				if ( lastErrFlush + 700 < Date.now() ) {
177 | 					flushErr();
178 | 				}
179 | 			} );
180 | 		},
181 | 
182 | 		done: function( args ) {
183 | 			global.postMessage( {
184 | 				reply: 'done',
185 | 				values: args
186 | 			} );
187 | 		},
188 | 
189 | 		progress: function( args ) {
190 | 			global.postMessage( {
191 | 				reply: 'progress',
192 | 				values: args
193 | 			} );
194 | 		},
195 | 
196 | 		log: function( args ) {
197 | 			global.postMessage( {
198 | 				reply: 'log',
199 | 				values: args
200 | 			} );
201 | 		},
202 | 
203 | 		err: function( args ) {
204 | 			global.postMessage( {
205 | 				reply: 'err',
206 | 				values: args
207 | 			} );
208 | 		},
209 | 
210 | 		_encode: function( data ) {
211 | 			/*jshint forin:false */
212 | 			var fPointer;
213 | 
214 | 			// Get a pointer for the callback function
215 | 			fPointer = Runtime.addFunction( function( encoded, total, seconds ) {
216 | 				var filename, fileContent, b;
217 | 
218 | 				// We *know* that writing to to stdin and/or stderr completed
219 | 				OpusEncoder.flushInfo();
220 | 				OpusEncoder.flushErr();
221 | 
222 | 				if ( encoded === total && encoded === 100 && seconds === -1 ) {
223 | 					// Read output files
224 | 					for ( filename in data.outData ) {
225 | 						if ( !data.outData.hasOwnProperty( filename ) ) {
226 | 							return;
227 | 						}
228 | 						fileContent = FS.readFile( filename, {
229 | 							encoding: 'binary'
230 | 						} );
231 | 						b = new Blob(
232 | 							[fileContent],
233 | 							{type: data.outData[filename].MIME}
234 | 						);
235 | 						data.outData[filename].blob = b;
236 | 					}
237 | 					(data.done || OpusEncoder.done)( data.outData );
238 | 				} else {
239 | 					(data.progress || OpusEncoder.progress)(
240 | 						Array.prototype.slice.call( arguments )
241 | 					);
242 | 				}
243 | 			} );
244 | 
245 | 			// Set module arguments (command line arguments)
246 | 			var args = data.args,
247 | 				argsCloned = args.slice( 0 );
248 | 
249 | 			args.unshift( 'opusenc.js' );
250 | 			Module['arguments'] = argsCloned;
251 | 
252 | 			// Create all neccessary files in MEMFS or whatever
253 | 			// the mounted file system is
254 | 			var filename;
255 | 
256 | 			for ( filename in data.fileData ) {
257 | 				if ( !data.fileData.hasOwnProperty( filename ) ) {
258 | 					return;
259 | 				}
260 | 				var fileData = data.fileData[filename],
261 | 					stream = FS.open( filename, 'w+' );
262 | 
263 | 				FS.write( stream, fileData, 0, fileData.length );
264 | 				FS.close( stream );
265 | 			}
266 | 
267 | 			// Create output files
268 | 			for ( filename in data.outData ) {
269 | 				if ( !data.outData.hasOwnProperty( filename ) ) {
270 | 					return;
271 | 				}
272 | 				FS.close( FS.open( filename, 'w+' ) );
273 | 			}
274 | 
275 | 			// Prepare C function to be called
276 | 			var encode_buffer = Module.cwrap( 'encode_buffer', 'number', ['number', 'number', 'number'] );
277 | 
278 | 			// Copy command line args to Emscripten Heap and get a pointer to them
279 | 			EmsArgs.cArgsPointer( args, function( pointerHeap ) {
280 | 				try {
281 | 					global.Module.noExitRuntime = false;
282 | 					encode_buffer( args.length, pointerHeap.byteOffset, fPointer );
283 | 				} catch ( ex ) {
284 | 					console.error( ex.message || ex );
285 | 				}
286 | 			} );
287 | 		}
288 | 	};
289 | 
290 | 	/**
291 | 	 * Downloads main script
292 | 	 *  @class MainScriptLoader
293 | 	 *  @singleton
294 | 	 *  @private
295 | 	 */
296 | 	MainScriptLoader = {
297 | 		name: 'opusenc.js',
298 | 		text: null,
299 | 		status: 'idle',
300 | 		xhrload: function( data, complete, err ) {
301 | 			var xhrfailed = function( errMsg ) {
302 | 				if ( MainScriptLoader.status !== 'loading' ) {
303 | 					return;
304 | 				}
305 | 				MainScriptLoader.status = 'xhrfailed';
306 | 				MainScriptLoader.onDownloadError( errMsg );
307 | 				if ( err ) err();
308 | 			};
309 | 
310 | 			if ( global.__debug ) {
311 | 				MainScriptLoader.status = 'loading';
312 | 				return xhrfailed( 'Debug modus enabled.' );
313 | 			}
314 | 
315 | 			var xhr = new XMLHttpRequest();
316 | 			xhr.onreadystatechange = function() {
317 | 				if ( xhr.readyState === xhr.DONE ) {
318 | 					if ( xhr.status === 200 || xhr.status === 0 && location.protocol === 'file:' ) {
319 | 						MainScriptLoader.text = xhr.responseText;
320 | 						MainScriptLoader.status = 'loaded';
321 | 						MainScriptLoader.onDownloadComplete();
322 | 						if ( complete ) complete();
323 | 						if ( downloadCompleted ) downloadCompleted();
324 | 					} else {
325 | 						xhrfailed( 'Server status ' +  xhr.status );
326 | 					}
327 | 				}
328 | 			};
329 | 			xhr.onprogress = function( e ) {
330 | 				if ( e.lengthComputable ) {
331 | 					MainScriptLoader.onDownloadProgress( e.loaded, e.total );
332 | 				}
333 | 			};
334 | 			xhr.onerror = function() {
335 | 				xhrfailed( 'There was an error with the request.' );
336 | 			};
337 | 			xhr.ontimeout = function() {
338 | 				xhrfailed( 'Request timed out.' );
339 | 			};
340 | 
341 | 			try {
342 | 				MainScriptLoader.status = 'loading';
343 | 				xhr.open( 'GET', MainScriptLoader.name );
344 | 				xhr.send( null );
345 | 			} catch ( ex ) {
346 | 				xhrfailed( ex.message || ex );
347 | 			}
348 | 		},
349 | 		onDownloadProgress: function( /* loaded, total */ ) {},
350 | 		onDownloadComplete: function() {},
351 | 		onDownloadError: function( /* description */ ) {},
352 | 		downloadAndExecute: function( data, beforeExecution, afterExecution ) {
353 | 			switch ( MainScriptLoader.status ) {
354 | 				case 'idle':
355 | 					MainScriptLoader.xhrload( data, function() {
356 | 						beforeExecution();
357 | 						MainScriptLoader.execute();
358 | 						afterExecution();
359 | 					}, function() {
360 | 						beforeExecution();
361 | 						importScripts( MainScriptLoader.name );
362 | 						afterExecution();
363 | 					} );
364 | 					break;
365 | 				case 'xhrfailed':
366 | 					beforeExecution();
367 | 					importScripts( MainScriptLoader.name );
368 | 					afterExecution();
369 | 					break;
370 | 				case 'loaded':
371 | 					beforeExecution();
372 | 					MainScriptLoader.execute();
373 | 					afterExecution();
374 | 					break;
375 | 				case 'loading':
376 | 					downloadCompleted = function() {
377 | 						downloadCompleted = null;
378 | 						downloadError = null;
379 | 						beforeExecution();
380 | 						MainScriptLoader.execute();
381 | 						afterExecution();
382 | 					};
383 | 					downloadError = function() {
384 | 						beforeExecution();
385 | 						importScripts( MainScriptLoader.name );
386 | 						afterExecution();
387 | 					};
388 | 					break;
389 | 			}
390 | 		},
391 | 		execute: function() {
392 | 			if ( !MainScriptLoader.text ) {
393 | 				throw new Error( 'Main script text must be loaded before!' );
394 | 			}
395 | 			global.callEval( MainScriptLoader.text );
396 | 		},
397 | 		queue: [],
398 | 		isInitialized: false,
399 | 		whenInitialized: function( cb ) {
400 | 			if ( MainScriptLoader.isInitialized ) {
401 | 				cb();
402 | 			} else {
403 | 				MainScriptLoader.queue.push( cb );
404 | 			}
405 | 		},
406 | 		initialized: function() {
407 | 			MainScriptLoader.isInitialized = true;
408 | 			while ( MainScriptLoader.queue.length ) {
409 | 				MainScriptLoader.queue.shift()();
410 | 			}
411 | 		}
412 | 	};
413 | 
414 | }( self ) );
415 | 
416 | ( function( global ) {
417 | 	/* jshint evil: true */
418 | 	global.callEval = function ( s ) {
419 | 		var Module = global.Module,
420 | 			ret = eval( s );
421 | 
422 | 		global.FS = FS;
423 | 		global.Module = Module;
424 | 		global.Runtime = Runtime;
425 | 		return ret;
426 | 	};
427 | }( self ) );


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/client/workers/opusenc.data.js:
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https://raw.githubusercontent.com/Mido22/recordOpus/f7ae9e22b0d8157aa136f2df23aeea2882efd42f/client/workers/opusenc.data.js


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/client/workers/recorderWorker.js:
--------------------------------------------------------------------------------
  1 | var recLength
  2 |   , recBuffersL
  3 |   , recBuffersR
  4 |   , sampleRate
  5 |   , numChannels
  6 |   , encodingInProgress
  7 |   , recBuffersLTemp = []       
  8 |   , recBuffersRTemp = []      
  9 |   , recLengthTemp = 0    
 10 |   , self = this
 11 |   ;
 12 | 
 13 | this.onmessage = function(e){
 14 |   switch(e.data.command){
 15 |     case 'init':
 16 |       init(e.data.config);
 17 |       break;
 18 |     case 'record':
 19 |       record(e.data.buffer);
 20 |       break;
 21 |     case 'export':
 22 |       exportFile(e.data);
 23 |       break;
 24 |   }
 25 | };
 26 | 
 27 | function init(config){
 28 |   sampleRate = config.sampleRate;
 29 |   numChannels = config.numChannels || 2;
 30 |   clear();
 31 | }
 32 | 
 33 | function record(inputBuffer){
 34 |   if(encodingInProgress){
 35 |     recBuffersLTemp.push(inputBuffer[0]);
 36 |     recBuffersRTemp.push(inputBuffer[1]);
 37 |     recLengthTemp += inputBuffer[0].length;        
 38 |   }else{
 39 |     recBuffersL.push(inputBuffer[0]);
 40 |     recBuffersR.push(inputBuffer[1]);
 41 |     recLength += inputBuffer[0].length;
 42 |     bufferLength=inputBuffer[0].length;
 43 |   }
 44 | }
 45 | 
 46 | function exportFile(data){
 47 |   data = data || {};
 48 |   encodingInProgress=true;
 49 |   var buffers = [mergeBuffers(recBuffersL, recLength),
 50 |                 mergeBuffers(recBuffersR, recLength)]
 51 |     , interleaved;
 52 |   if (numChannels === 2){
 53 |       interleaved = interleave(buffers[0], buffers[1]);
 54 |   } else {
 55 |       interleaved = buffers[0];
 56 |   }
 57 |   data.blob = new Blob([encodeWAV(interleaved)], { type: 'audio/wav' });
 58 |   this.postMessage(data);
 59 |   clear();
 60 | }
 61 | 
 62 | function clear(){
 63 |   recLength = recLengthTemp;
 64 |   recBuffersL = recBuffersLTemp;
 65 |   recBuffersR = recBuffersRTemp;
 66 |   recLengthTemp = 0;
 67 |   recBuffersLTemp = [];
 68 |   recBuffersRTemp = [];
 69 |   encodingInProgress=false;
 70 | }
 71 | 
 72 | function mergeBuffers(recBuffers, recLength){
 73 |   var result = new Float32Array(recLength);
 74 |   var offset = 0;
 75 |   for (var i = 0; i < recBuffers.length; i++){
 76 |     result.set(recBuffers[i], offset);
 77 |     offset += recBuffers[i].length;
 78 |   }
 79 |   return result;
 80 | }
 81 | 
 82 | function interleave(inputL, inputR){
 83 |   var length = inputL.length + inputR.length;
 84 |   var result = new Float32Array(length);
 85 | 
 86 |   var index = 0,
 87 |     inputIndex = 0;
 88 | 
 89 |   while (index < length){
 90 |     result[index++] = inputL[inputIndex];
 91 |     result[index++] = inputR[inputIndex];
 92 |     inputIndex++;
 93 |   }
 94 |   return result;
 95 | }
 96 | 
 97 | function floatTo16BitPCM(output, offset, input){
 98 |   for (var i = 0; i < input.length; i++, offset+=2){
 99 |     var s = Math.max(-1, Math.min(1, input[i]));
100 |     output.setInt16(offset, s < 0 ? s * 0x8000 : s * 0x7FFF, true);
101 |   }
102 | }
103 | 
104 | function writeString(view, offset, string){
105 |   for (var i = 0; i < string.length; i++){
106 |     view.setUint8(offset + i, string.charCodeAt(i));
107 |   }
108 | }
109 | 
110 | function encodeWAV(samples){
111 |   var buffer = new ArrayBuffer(44 + samples.length * 2);
112 |   var view = new DataView(buffer);
113 | 
114 |   /* RIFF identifier */
115 |   writeString(view, 0, 'RIFF');
116 |   /* RIFF chunk length */
117 |   view.setUint32(4, 36 + samples.length * 2, true);
118 |   /* RIFF type */
119 |   writeString(view, 8, 'WAVE');
120 |   /* format chunk identifier */
121 |   writeString(view, 12, 'fmt ');
122 |   /* format chunk length */
123 |   view.setUint32(16, 16, true);
124 |   /* sample format (raw) */
125 |   view.setUint16(20, 1, true);
126 |   /* channel count */
127 |   view.setUint16(22, numChannels, true);
128 |   /* sample rate */
129 |   view.setUint32(24, sampleRate, true);
130 |   /* byte rate (sample rate * block align) */
131 |   view.setUint32(28, sampleRate * 4, true);
132 |   /* block align (channel count * bytes per sample) */
133 |   view.setUint16(32, numChannels * 2, true);
134 |   /* bits per sample */
135 |   view.setUint16(34, 16, true);
136 |   /* data chunk identifier */
137 |   writeString(view, 36, 'data');
138 |   /* data chunk length */
139 |   view.setUint32(40, samples.length * 2, true);
140 | 
141 |   floatTo16BitPCM(view, 44, samples);
142 | 
143 |   return view;
144 | }
145 | 


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/package.json:
--------------------------------------------------------------------------------
 1 | {
 2 |   "name": "recordOpus",
 3 |   "version": "1.0.1",
 4 |   "description": "audio recorder using opus encoding",
 5 |   "scripts": {
 6 |     "start": "node server/app.js",
 7 |     "test": "echo \"One day I would write them, but not today.\" && exit 1"
 8 |   },
 9 |   "repository": {
10 |     "type": "git",
11 |     "url": "https://github.com/Mido22/recordOpus.git"
12 |   },
13 |   "keywords": [
14 |     "opus",
15 |     "ogg",
16 |     "getUserMedia",
17 |     "audio-recorder",
18 |     "nodejs",
19 |     "javascript"
20 |   ],
21 |   "author": "Ban Mido",
22 |   "license": "MIT",
23 |   "bugs": {
24 |     "url": "https://github.com/Mido22/recordOpus/issues"
25 |   },
26 |   "homepage": "https://github.com/Mido22/recordOpus",
27 |   "dependencies": {
28 |     "express": "4.10.2",
29 |     "fluent-ffmpeg": "^2.0.0-rc3",
30 |     "mkdirp": "^0.5.0",
31 |     "open": "0.0.5",
32 |     "rimraf": "^2.3.2",
33 |     "socket.io": "1.2.0"
34 |   }
35 | }
36 | 


--------------------------------------------------------------------------------
/server/app.js:
--------------------------------------------------------------------------------
  1 | var app = require('express')()
  2 |   , TMP_PATH = 'uploads'
  3 |   , open = require("open")
  4 |   , ffmpeg = require('fluent-ffmpeg')
  5 |   , rm = require('rimraf')
  6 |   , fs = require('fs')
  7 |   , mkdirp = require('mkdirp')
  8 |   , path = require('path')
  9 |   , noop = function(){}
 10 | ;
 11 | app.use("/", require('express').static(__dirname.replace('server', 'client')));
 12 | app.use("/workers", require('express').static(__dirname.replace('server', 'client/workers')));
 13 | app.use("/uploads", require('express').static(__dirname.replace('server', TMP_PATH)));
 14 | 
 15 | var http = require('http').Server(app);
 16 | http.listen(80, function(){
 17 |     console.log('listening on 80');
 18 |     open("http://localhost:80");
 19 | });
 20 | 
 21 | // for socket communication.
 22 | var io = require('socket.io')(http);
 23 | io.on('connection', function(socket){  
 24 |   socket.on('save', function(data){
 25 |     saveAudio(data, function(response){
 26 |       socket.emit('link', response);
 27 |     });
 28 |   });  
 29 | });
 30 | 
 31 | //function listening to save request from client, callback is called once the response is ready
 32 | function saveAudio(data, callback){
 33 |     if(data.recorderType === 'Fox' || !data.autoUpload){
 34 |         saveFox(data, callback);
 35 |     }else{
 36 |         saveOpusShim(data, callback);
 37 |     }
 38 | }
 39 | 
 40 | // function in charge of saving file for Firefox native recorder[ we just append to file, not create new file for each chunck of audio recieved]
 41 | function saveFox(data, callback){
 42 |     data.path = path.join(TMP_PATH, data.uid + '.ogg');
 43 |     fs.appendFile( data.path, data.blob, function(err){
 44 |         if(err){
 45 |             console.log(err);
 46 |             return;
 47 |         }        
 48 |         if(data.autoUpload && !data.stop)   return;
 49 |         returnLink(data, data.path, callback);
 50 |     }); 
 51 | }
 52 | 
 53 | // function in charge of saving file for OggShimRecorder
 54 | function saveOpusShim(data, callback){
 55 |     data.path = TMP_PATH+'/'+data.uid;
 56 |     mkDir(data.path, function(){        
 57 |         var fileName  = 'audio_' + Math.random() + '.ogg',
 58 |             p = path.resolve(data.path);
 59 |         fs.appendFile(path.join(p,'files.txt'), "file '"+path.join(p,fileName)+"'\n", function(err){
 60 |             if(err){
 61 |                 console.log(err);
 62 |                 return;
 63 |             }        
 64 |             fs.appendFile( path.join(p,fileName), data.blob, function(err){
 65 |                 if(err){
 66 |                     console.log(err);
 67 |                     return;
 68 |                 }        
 69 |                 if(data.stop){
 70 |                     var outFile  = path.join(TMP_PATH, data.uid + '.ogg'),
 71 |                         inFile = path.join(p,'files.txt');
 72 |                     concat(inFile, outFile, function(err, filepath){
 73 |                         
 74 |                         rm(data.path, function(err){
 75 |                             if(err){
 76 |                                 console.log('error while removing dir',err);
 77 |                             }
 78 |                         });
 79 |                         returnLink(data, filepath, callback);
 80 |                     });
 81 |                 }
 82 |             }); 
 83 |         });
 84 |     });
 85 | }
 86 | 
 87 | // common method for responding once the file is successfully saved in server.
 88 | function returnLink(data, filepath, callback){
 89 |     data.path = filepath;
 90 |     delete data.blob;
 91 |     callback(data);
 92 | }
 93 | 
 94 | // for concating all audio chunks into single file.
 95 | function concat(inFile, outFile, callback){	  
 96 | 	try{                
 97 | 		ffmpeg().input(inFile)
 98 | 			.inputOptions('-f', 'concat')
 99 | 			.output(outFile)
100 | 			.on('error', function(err) {
101 | 				console.log('err:', err);
102 | 				callback(err);
103 | 			}).on('end', function() {
104 | 				callback(null, outFile);
105 | 			}).run();                
106 | 	}catch(e){
107 | 		console.log('err:', e);
108 | 		callback(e);
109 | 	}      
110 | }
111 | 
112 | // for creating a directory at the given path if not present already.
113 | function mkDir(dirPath, cb){
114 |     fs.exists(dirPath, function(exists){
115 |         if(!exists){
116 |             mkdirp(dirPath, '0755', function(err){
117 |                 if(err) console.log( 'error creating folder');
118 |                 else cb();
119 |             });
120 |         }else{
121 |             cb();
122 |         }
123 |     });	
124 | }
125 | 
126 | mkDir(TMP_PATH, noop);


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