├── README.md
├── app.js
├── doc
    ├── 1508489067(1).png
    └── 1508489279(1).png
├── package.json
└── www
    ├── css
        └── index.css
    ├── index.html
    └── js
        ├── index.js
        └── socket.io.js


/README.md:
--------------------------------------------------------------------------------
 1 | # express-socket
 2 | > express+socket.io聊天室
 3 | 
 4 | #### 完成
 5 | - [x] 登陆提醒
 6 | - [x] 退出提醒
 7 | - [x] 在线聊天
 8 | - [x] 在线人数统计
 9 | 
10 | #### todo
11 | - [ ] 多个房间
12 | - [ ] 单独聊天
13 | - [ ] 头像
14 | 
15 | ## 项目大概
16 | 
17 | ![](./doc/1508489067(1).png)
18 | ![](./doc/1508489279(1).png)
19 | 
20 | ## 安装运行
21 | ```
22 | git clone https://github.com/pengrongjie/express-socket.git
23 | cd express-socket
24 | cnpm install 
25 | node app.js
26 | ```
27 | > http://localhost:80/
28 | 


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/app.js:
--------------------------------------------------------------------------------
 1 | var express = require('express');
 2 | var app = express();
 3 | var server = require('http').createServer(app);
 4 | var io = require('socket.io').listen(server);
 5 | // 存储用户
 6 | var users = [];
 7 | 
 8 | app.use('/',express.static(__dirname + '/www'));
 9 | server.listen(80);
10 | console.log("http://localhost:80/");
11 | 
12 | // socket.io
13 | 
14 | io.on('connection', function(socket){
15 |   // 登录
16 |   socket.on('login', function(nickname){
17 |     if(users.indexOf(nickname) > -1){
18 |       socket.emit('loginFailed');
19 |     }else{
20 |       socket.nickname = nickname;
21 |       users.push(nickname);
22 |       console.log(nickname + '已经上线了，总在线人数为:' + users.length);
23 |       socket.emit('loginSuccess');
24 |       io.sockets.emit('system', nickname, users.length, 'login');
25 |     }
26 |   })
27 | 
28 |   //断开连接，实时更新users数组
29 |   socket.on('disconnect', function(){
30 |     var index = users.indexOf(socket.nickname);
31 |     users.splice(index, 1);
32 |     io.sockets.emit('system', socket.nickname, users.length, 'logout');
33 |     console.log(socket.nickname + '已经下线了');
34 |     console.log(users);
35 |   })
36 |   // 发送消息
37 |   socket.on('msgSend', function(msg){
38 |     socket.broadcast.emit('newMsg', socket.nickname, msg);
39 |   })
40 | })
41 | 


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/doc/1508489067(1).png:
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https://raw.githubusercontent.com/pengrongjie/express-socket/6032259179cd2294f0635ca7e73be543cf64a148/doc/1508489067(1).png


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/doc/1508489279(1).png:
--------------------------------------------------------------------------------
https://raw.githubusercontent.com/pengrongjie/express-socket/6032259179cd2294f0635ca7e73be543cf64a148/doc/1508489279(1).png


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/package.json:
--------------------------------------------------------------------------------
 1 | {
 2 |   "name": "socket7ss",
 3 |   "version": "1.0.0",
 4 |   "description": "",
 5 |   "main": "index.js",
 6 |   "scripts": {
 7 |     "test": "echo \"Error: no test specified\" && exit 1"
 8 |   },
 9 |   "author": "",
10 |   "license": "ISC",
11 |   "dependencies": {
12 |     "express": "^4.16.2",
13 |     "socket.io": "^2.0.3"
14 |   }
15 | }
16 | 


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/www/css/index.css:
--------------------------------------------------------------------------------
  1 | * {
  2 |   padding: 0;
  3 |   margin: 0;
  4 | }
  5 | ul {
  6 |   list-style: none;
  7 | }
  8 | a {
  9 |   text-decoration: none;
 10 | }
 11 | button,
 12 | input {
 13 |   outline: none;
 14 | }
 15 | body {
 16 |   padding: 50px 0;
 17 |   background-color: #f1f1f1;
 18 | }
 19 | /*头部*/
 20 | body .header {
 21 |   position: fixed;
 22 |   top: 0;
 23 |   left: 0;
 24 |   height: 50px;
 25 |   width: 100%;
 26 |   text-align: center;
 27 |   line-height: 50px;
 28 |   color: #fff;
 29 |   background-color: #00aaee;
 30 |   z-index: 999;
 31 | }
 32 | /*登录框*/
 33 | body .loginWrapper{
 34 |   position: fixed;
 35 |   top: 0;
 36 |   left: 0;
 37 |   bottom: 0;
 38 |   right: 0;
 39 |   text-align: center;
 40 |   padding-top: 40%;
 41 |   background-color: rgba(0,0,0,.1);
 42 |   z-index: 1000;
 43 | }
 44 | body .loginWrapper .info{
 45 |   height: 50px;
 46 |   line-height: 50px;
 47 | }
 48 | body .loginWrapper input{
 49 |   display: block;
 50 |   height: 40px;
 51 |   width: 80%;
 52 |   line-height: 40px;
 53 |   margin: 20px auto;
 54 |   text-align: center;
 55 |   border: 1px solid #ccc;
 56 |   border-radius: 4px;
 57 | }
 58 | body .loginWrapper input:focus{
 59 |   border: 1px solid #00aaee;
 60 | }
 61 | body .loginWrapper input.button{
 62 |   background-color: #00aaee;
 63 |   color: #fff;
 64 | }
 65 | /*输入框*/
 66 | body .control{
 67 |   position: fixed;
 68 |   display: flex;
 69 |   bottom: 0;
 70 |   left: 0;
 71 |   width: 100%;
 72 |   height: 40px;
 73 |   z-index: 1000;
 74 | }
 75 | body .control input {
 76 |   flex: 1;
 77 |   padding-left: 10px;
 78 |   background-color: #fff;
 79 |   border: 1px solid #ccc;
 80 |   border-radius: 4px;
 81 | }
 82 | body .control input:focus{
 83 |   border: 1px solid #00aaee;
 84 | }
 85 | body .control button{
 86 |   flex: 0 0 60px;
 87 |   width: 60px;
 88 |   background-color: #00aaee;
 89 |   color: #fff;
 90 |   border: 1px solid #00aaee;
 91 |   border-radius: 4px;
 92 | }
 93 | /*系统消息*/
 94 | body .historyMsg{
 95 | 
 96 | }
 97 | body .historyMsg .system{
 98 |   height: 40px;
 99 |   line-height: 40px;
100 |   text-align: center;
101 | }
102 | body .historyMsg .system .nickname{
103 |   color: #00aaee;
104 | }
105 | /*我自己发送的消息*/
106 | body .historyMsg .myMsg {
107 |   margin: 0 10px 10px 0;
108 |   text-align: right;
109 | }
110 | body .historyMsg .myMsg .timespan{
111 |   display: block;
112 |   font-size: 12px;
113 |   color: #333;
114 | }
115 | body .historyMsg .myMsg .nickname{
116 |   display: none;
117 | }
118 | body .historyMsg .myMsg .text{
119 |   display: inline-block;
120 |   height: 30px;
121 |   line-height: 30px;
122 |   margin-top: 5px;
123 |   padding: 0 8px;
124 |   background-color: #00aaee;
125 |   color: #fff;
126 |   border: 1px solid #00aaee;
127 |   border-radius: 10px;
128 | }
129 | 
130 | /*别人发送的消息*/
131 | body .historyMsg .newMsg{
132 |   margin: 0 0 10px 10px;
133 | }
134 | body .historyMsg .newMsg .timespan{
135 |   display: block;
136 |   font-size: 12px;
137 |   color: #333;
138 | }
139 | body .historyMsg .newMsg .nickname{
140 |   display: inline-block;
141 |   height: 30px;
142 |   line-height: 30px;
143 |   margin-top: 5px;
144 |   padding: 0 4px;
145 |   background-color: #fff;
146 |   color: #00aaee;
147 |   border: 1px solid #fff;
148 |   border-radius: 10px 0 0 10px;;
149 | }
150 | body .historyMsg .newMsg .text{
151 |   display: inline-block;
152 |   height: 30px;
153 |   line-height: 30px;
154 |   margin-top: 5px;
155 |   padding: 0 4px 0 4px;
156 |   background-color: #fff;
157 |   color: #333;
158 |   border: 1px solid #fff;
159 |   border-radius: 0 10px 10px 0;
160 | }
161 | .nickWrapper{
162 | 	display: none;
163 | }
164 | 


--------------------------------------------------------------------------------
/www/index.html:
--------------------------------------------------------------------------------
 1 | <!DOCTYPE html>
 2 | <html>
 3 |   <head>
 4 |     <meta charset="utf-8">
 5 |     <meta name="viewport" content="width=device-width,initial-scale=1,user-scalable=no">
 6 |     <title>express+socket聊天室</title>
 7 |     <link rel="stylesheet" href="../css/index.css">
 8 |   </head>
 9 |   <body>
10 |     <!-- 头部 -->
11 |     <header class="header">
12 |       express+socket聊天室(<span id="status">0</span>)
13 |     </header>
14 | 
15 |     <!-- 历史消息 -->
16 |     <section class="historyMsg" id="historyMsg">
17 | 
18 |     </section>
19 | 
20 |     <!-- 输入框 -->
21 |     <section class="control">
22 |         <input id="inputMsg" class="inputMsg">
23 |         <button id="sendBtn" class="sendBtn">发送</button>
24 |       <!-- </div> -->
25 |     </section>
26 | 
27 |     <!-- 登录 -->
28 |     <section id="loginWrapper" class="loginWrapper">
29 |       <p id="info" class="info">欢迎来到express+socket聊天室</p>
30 | 			<div id="nickWrapper" class="nickWrapper">
31 | 				<input type="text" placeholder="来个呢称，才能进行聊天室哦" id="nicknameInput" class="text" />
32 | 				<input type="button" class="button" id="loginBtn" value="登录" />
33 | 			</div>
34 |     </section>
35 | 
36 |     <script type="text/javascript" src="../js/socket.io.js"></script>
37 |     <script type="text/javascript" src="../js/index.js"></script>
38 |   </body>
39 | </html>
40 | 


--------------------------------------------------------------------------------
/www/js/index.js:
--------------------------------------------------------------------------------
  1 | window.onload = function(){
  2 | 	var kchat = new KChat();
  3 | 	kchat.init();
  4 | };
  5 | 
  6 | var KChat = function(){
  7 | 	this.socket = null;
  8 | };
  9 | 
 10 | KChat.prototype = {
 11 | 
 12 | 	init: function(){
 13 | 		var that = this;
 14 | 
 15 | 		//建立与服务器的socket连接
 16 | 		this.socket = io.connect();
 17 | 
 18 | 		//监听socket的connect事件，此事件表示连接已经建立
 19 | 		this.socket.on('connect',function(){
 20 | 			document.getElementById('info').textContent = '欢迎来到express+socket聊天室';
 21 | 			document.getElementById('nickWrapper').style.display = 'block';
 22 | 			document.getElementById('nicknameInput');
 23 | 		});
 24 | 
 25 | 		//登录失败
 26 | 		this.socket.on('loginFailed', function(){
 27 | 			var info = document.getElementById('info');
 28 | 			info.textContent = '该呢称已存在，请重新输入新的呢称';
 29 | 			info.style.color = 'red';
 30 | 		});
 31 | 
 32 | 		//登录成功
 33 | 		this.socket.on('loginSuccess', function(){
 34 | 			document.title = '聊天室成员(' + document.getElementById('nicknameInput').value + ')';
 35 | 			document.getElementById('loginWrapper').style.display = 'none';
 36 | 			document.getElementById('inputMsg').focus();
 37 | 		});
 38 | 
 39 | 		//系统人数更新，提示用户新加入或离开
 40 | 		this.socket.on('system', function(nickname, count, type){
 41 | 			that._systemInfo(nickname, count, type);
 42 | 		});
 43 | 
 44 | 		//收到新消息
 45 | 		this.socket.on('newMsg', function(nickname, msg){
 46 | 			that._displayNewMsg(nickname, msg, 'newMsg');
 47 | 			// alert(nickname + ': ' + msg);
 48 | 		});
 49 | 
 50 | 
 51 | 		//设置登陆按钮和nicknameInput的监听事件(click&keyup)login
 52 | 		document.getElementById('loginBtn').addEventListener('click', function(){
 53 | 			var nickname = document.getElementById('nicknameInput').value.trim();
 54 | 			var info = document.getElementById('info');
 55 | 			var nicknameInput = document.getElementById('nicknameInput');
 56 | 
 57 | 
 58 | 			if (nickname.length == 0 || nickname.length > 10){
 59 | 				//如果用户名为空或超出长度限制
 60 | 				info.textContent = '呢称不能为空，并且不能超过10个字符';
 61 | 				info.style.color = 'red';
 62 | 				nicknameInput.value = '';
 63 | 				nicknameInput.focus();
 64 | 			}else{
 65 | 				//用户名合法
 66 | 				that.socket.emit('login', nickname);
 67 | 
 68 | 			}
 69 | 		}, false);
 70 | 		document.getElementById('nicknameInput').addEventListener('keyup', function(e){
 71 | 			if (e.keyCode == 13){
 72 | 				var nicknameInput = document.getElementById('nicknameInput');
 73 | 				var nickname = nicknameInput.value.trim();
 74 | 				var info = document.getElementById('info');
 75 | 
 76 | 
 77 | 				if (nickname.length == 0 || nickname.length > 10){
 78 | 					//如果用户名为空或超出长度限制
 79 | 					info.textContent = '该呢称已存在，请重新输入新的呢称';
 80 | 					info.style.color = 'red';
 81 | 					nicknameInput.value = '';
 82 | 					nicknameInput.focus();
 83 | 				}else{
 84 | 				//用户名合法
 85 | 				that.socket.emit('login', nickname);
 86 | 				}
 87 | 			}
 88 | 		}, false);
 89 | 
 90 | 
 91 | 		//发送按钮和inputMsg监听事件
 92 | 		document.getElementById('sendBtn').addEventListener('click', function(){
 93 | 			//1.获取用户输入
 94 | 			//2.检测是否超出长度限制
 95 | 			//3.通过检测则直接广播
 96 | 			var inputMsg = document.getElementById('inputMsg');
 97 | 			var msg = inputMsg.value.replace('\n','');
 98 | 			if (msg == ''){
 99 | 				inputMsg.focus();
100 | 				return;
101 | 			}
102 | 
103 | 			if (msg.length > 15){
104 | 				alert('Sorry啊,字数上限为15字:)');
105 | 				inputMsg.focus();
106 | 			}else{
107 | 				that.socket.emit('msgSend', msg);
108 | 				inputMsg.value = '';
109 | 				that._displayNewMsg('', msg, 'myMsg');
110 | 			}
111 | 		}, false);
112 | 
113 | 		document.getElementById('inputMsg').addEventListener('keyup', function(e){
114 | 			if (e.keyCode == 13){
115 | 				var inputMsg = document.getElementById('inputMsg');
116 | 				inputMsg.value = inputMsg.value.replace('\n','');
117 | 				var msg = inputMsg.value.replace('\n','');
118 | 				if (msg == ''){
119 | 					inputMsg.focus();
120 | 					return;
121 | 				}
122 | 
123 | 				if (msg.length > 15){
124 | 					alert('Sorry啊,字数上限为15字:)');
125 | 					inputMsg.focus();
126 | 				}else{
127 | 					that.socket.emit('msgSend', msg);
128 | 					inputMsg.value = '';
129 | 					inputMsg.focus();
130 | 					that._displayNewMsg('', msg, 'myMsg');
131 | 				}
132 | 			}
133 | 		}, false);
134 | 
135 | 
136 | 	},
137 | 
138 | 	_displayNewMsg: function(nickname, msg, who){
139 | 		var historyMsg = document.getElementById('historyMsg');
140 | 
141 | 		var p = document.createElement('p');
142 | 		p.setAttribute('class',who);
143 | 
144 | 		var span_nickname = document.createElement('span');
145 | 		span_nickname.setAttribute('class','nickname');
146 | 		span_nickname.textContent = nickname + ':';
147 | 
148 | 		var span_timespan = document.createElement('span');
149 | 		span_timespan.setAttribute('class','timespan');
150 | 		var time = new Date().toTimeString().substr(0, 8);
151 | 		span_timespan.textContent = time;
152 | 
153 | 		// var text = document.createTextNode(msg);
154 |     var span_text = document.createElement('span');
155 | 		span_text.setAttribute('class','text');
156 | 		span_text.textContent = msg;
157 | 
158 | 		p.appendChild(span_timespan);
159 |     p.appendChild(span_nickname);
160 | 		p.appendChild(span_text);
161 | 
162 | 		historyMsg.appendChild(p);
163 | 
164 | 		//控制滚动条自动滚到底部
165 | 		historyMsg.scrollTop = historyMsg.scrollHeight;
166 | 
167 | 	},
168 | 
169 | 	_systemInfo: function(nickname, count, type){
170 | 
171 | 		document.getElementById('status').textContent = count;
172 | 
173 | 		var historyMsg = document.getElementById('historyMsg');
174 | 		// <p class="system"><span class="nickname">kyrieliu</span>加入了群聊</p>
175 | 		var p = document.createElement('p');
176 | 		var span = document.createElement('span');
177 | 		var text;
178 | 		if (type == 'login'){
179 | 			text = document.createTextNode(' 加入了群聊');
180 | 		}else if (type == 'logout'){
181 | 			text = document.createTextNode(' 离开了群聊');
182 | 		}
183 | 
184 | 		p.setAttribute('class','system');
185 | 		span.setAttribute('class','nickname');
186 | 		span.textContent = nickname;
187 | 
188 | 		p.appendChild(span);
189 | 		p.appendChild(text);
190 | 
191 | 
192 | 		historyMsg.appendChild(p);
193 | 	}
194 | 
195 | };
196 | 


--------------------------------------------------------------------------------
/www/js/socket.io.js:
--------------------------------------------------------------------------------
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t=this.packetBuffer.shift();this.packet(t)}},r.prototype.cleanup=function(){h("cleanup");for(var t=this.subs.length,e=0;e<t;e++){var n=this.subs.shift();n.destroy()}this.packetBuffer=[],this.encoding=!1,this.lastPing=null,this.decoder.destroy()},r.prototype.close=r.prototype.disconnect=function(){h("disconnect"),this.skipReconnect=!0,this.reconnecting=!1,"opening"===this.readyState&&this.cleanup(),this.backoff.reset(),this.readyState="closed",this.engine&&this.engine.close()},r.prototype.onclose=function(t){h("onclose"),this.cleanup(),this.backoff.reset(),this.readyState="closed",this.emit("close",t),this._reconnection&&!this.skipReconnect&&this.reconnect()},r.prototype.reconnect=function(){if(this.reconnecting||this.skipReconnect)return this;var t=this;if(this.backoff.attempts>=this._reconnectionAttempts)h("reconnect failed"),this.backoff.reset(),this.emitAll("reconnect_failed"),this.reconnecting=!1;else{var e=this.backoff.duration();h("will wait %dms before reconnect 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t&&(n=t,t=null),t?(t=u(t),n.hostname=t.host,n.secure="https"===t.protocol||"wss"===t.protocol,n.port=t.port,t.query&&(n.query=t.query)):n.host&&(n.hostname=u(n.host).host),this.secure=null!=n.secure?n.secure:e.location&&"https:"===location.protocol,n.hostname&&!n.port&&(n.port=this.secure?"443":"80"),this.agent=n.agent||!1,this.hostname=n.hostname||(e.location?location.hostname:"localhost"),this.port=n.port||(e.location&&location.port?location.port:this.secure?443:80),this.query=n.query||{},"string"==typeof this.query&&(this.query=f.decode(this.query)),this.upgrade=!1!==n.upgrade,this.path=(n.path||"/engine.io").replace(/\/$/,"")+"/",this.forceJSONP=!!n.forceJSONP,this.jsonp=!1!==n.jsonp,this.forceBase64=!!n.forceBase64,this.enablesXDR=!!n.enablesXDR,this.timestampParam=n.timestampParam||"t",this.timestampRequests=n.timestampRequests,this.transports=n.transports||["polling","websocket"],this.transportOptions=n.transportOptions||{},this.readyState="",this.writeBuffer=[],this.prevBufferLen=0,this.policyPort=n.policyPort||843,this.rememberUpgrade=n.rememberUpgrade||!1,this.binaryType=null,this.onlyBinaryUpgrades=n.onlyBinaryUpgrades,this.perMessageDeflate=!1!==n.perMessageDeflate&&(n.perMessageDeflate||{}),!0===this.perMessageDeflate&&(this.perMessageDeflate={}),this.perMessageDeflate&&null==this.perMessageDeflate.threshold&&(this.perMessageDeflate.threshold=1024),this.pfx=n.pfx||null,this.key=n.key||null,this.passphrase=n.passphrase||null,this.cert=n.cert||null,this.ca=n.ca||null,this.ciphers=n.ciphers||null,this.rejectUnauthorized=void 0===n.rejectUnauthorized||n.rejectUnauthorized,this.forceNode=!!n.forceNode;var o="object"==typeof e&&e;o.global===o&&(n.extraHeaders&&Object.keys(n.extraHeaders).length>0&&(this.extraHeaders=n.extraHeaders),n.localAddress&&(this.localAddress=n.localAddress)),this.id=null,this.upgrades=null,this.pingInterval=null,this.pingTimeout=null,this.pingIntervalTimer=null,this.pingTimeoutTimer=null,this.open()}function o(t){var e={};for(var n in t)t.hasOwnProperty(n)&&(e[n]=t[n]);return e}var i=n(17),s=n(8),a=n(3)("engine.io-client:socket"),c=n(37),p=n(23),u=n(2),h=n(38),f=n(31);t.exports=r,r.priorWebsocketSuccess=!1,s(r.prototype),r.protocol=p.protocol,r.Socket=r,r.Transport=n(22),r.transports=n(17),r.parser=n(23),r.prototype.createTransport=function(t){a('creating transport "%s"',t);var e=o(this.query);e.EIO=p.protocol,e.transport=t;var n=this.transportOptions[t]||{};this.id&&(e.sid=this.id);var r=new i[t]({query:e,socket:this,agent:n.agent||this.agent,hostname:n.hostname||this.hostname,port:n.port||this.port,secure:n.secure||this.secure,path:n.path||this.path,forceJSONP:n.forceJSONP||this.forceJSONP,jsonp:n.jsonp||this.jsonp,forceBase64:n.forceBase64||this.forceBase64,enablesXDR:n.enablesXDR||this.enablesXDR,timestampRequests:n.timestampRequests||this.timestampRequests,timestampParam:n.timestampParam||this.timestampParam,policyPort:n.policyPort||this.policyPort,pfx:n.pfx||this.pfx,key:n.key||this.key,passphrase:n.passphrase||this.passphrase,cert:n.cert||this.cert,ca:n.ca||this.ca,ciphers:n.ciphers||this.ciphers,rejectUnauthorized:n.rejectUnauthorized||this.rejectUnauthorized,perMessageDeflate:n.perMessageDeflate||this.perMessageDeflate,extraHeaders:n.extraHeaders||this.extraHeaders,forceNode:n.forceNode||this.forceNode,localAddress:n.localAddress||this.localAddress,requestTimeout:n.requestTimeout||this.requestTimeout,protocols:n.protocols||void 0});return r},r.prototype.open=function(){var t;if(this.rememberUpgrade&&r.priorWebsocketSuccess&&this.transports.indexOf("websocket")!==-1)t="websocket";else{if(0===this.transports.length){var e=this;return void setTimeout(function(){e.emit("error","No transports available")},0)}t=this.transports[0]}this.readyState="opening";try{t=this.createTransport(t)}catch(n){return this.transports.shift(),void this.open()}t.open(),this.setTransport(t)},r.prototype.setTransport=function(t){a("setting transport %s",t.name);var e=this;this.transport&&(a("clearing existing transport %s",this.transport.name),this.transport.removeAllListeners()),this.transport=t,t.on("drain",function(){e.onDrain()}).on("packet",function(t){e.onPacket(t)}).on("error",function(t){e.onError(t)}).on("close",function(){e.onClose("transport close")})},r.prototype.probe=function(t){function e(){if(f.onlyBinaryUpgrades){var e=!this.supportsBinary&&f.transport.supportsBinary;h=h||e}h||(a('probe transport "%s" opened',t),u.send([{type:"ping",data:"probe"}]),u.once("packet",function(e){if(!h)if("pong"===e.type&&"probe"===e.data){if(a('probe transport "%s" pong',t),f.upgrading=!0,f.emit("upgrading",u),!u)return;r.priorWebsocketSuccess="websocket"===u.name,a('pausing current transport "%s"',f.transport.name),f.transport.pause(function(){h||"closed"!==f.readyState&&(a("changing transport and sending upgrade packet"),p(),f.setTransport(u),u.send([{type:"upgrade"}]),f.emit("upgrade",u),u=null,f.upgrading=!1,f.flush())})}else{a('probe transport "%s" failed',t);var n=new Error("probe error");n.transport=u.name,f.emit("upgradeError",n)}}))}function n(){h||(h=!0,p(),u.close(),u=null)}function o(e){var r=new Error("probe error: "+e);r.transport=u.name,n(),a('probe transport "%s" failed because of error: %s',t,e),f.emit("upgradeError",r)}function i(){o("transport closed")}function s(){o("socket closed")}function c(t){u&&t.name!==u.name&&(a('"%s" works - aborting "%s"',t.name,u.name),n())}function p(){u.removeListener("open",e),u.removeListener("error",o),u.removeListener("close",i),f.removeListener("close",s),f.removeListener("upgrading",c)}a('probing transport "%s"',t);var u=this.createTransport(t,{probe:1}),h=!1,f=this;r.priorWebsocketSuccess=!1,u.once("open",e),u.once("error",o),u.once("close",i),this.once("close",s),this.once("upgrading",c),u.open()},r.prototype.onOpen=function(){if(a("socket open"),this.readyState="open",r.priorWebsocketSuccess="websocket"===this.transport.name,this.emit("open"),this.flush(),"open"===this.readyState&&this.upgrade&&this.transport.pause){a("starting upgrade probes");for(var t=0,e=this.upgrades.length;t<e;t++)this.probe(this.upgrades[t])}},r.prototype.onPacket=function(t){if("opening"===this.readyState||"open"===this.readyState||"closing"===this.readyState)switch(a('socket receive: type "%s", data "%s"',t.type,t.data),this.emit("packet",t),this.emit("heartbeat"),t.type){case"open":this.onHandshake(h(t.data));break;case"pong":this.setPing(),this.emit("pong");break;case"error":var e=new Error("server error");e.code=t.data,this.onError(e);break;case"message":this.emit("data",t.data),this.emit("message",t.data)}else a('packet received with socket readyState "%s"',this.readyState)},r.prototype.onHandshake=function(t){this.emit("handshake",t),this.id=t.sid,this.transport.query.sid=t.sid,this.upgrades=this.filterUpgrades(t.upgrades),this.pingInterval=t.pingInterval,this.pingTimeout=t.pingTimeout,this.onOpen(),"closed"!==this.readyState&&(this.setPing(),this.removeListener("heartbeat",this.onHeartbeat),this.on("heartbeat",this.onHeartbeat))},r.prototype.onHeartbeat=function(t){clearTimeout(this.pingTimeoutTimer);var e=this;e.pingTimeoutTimer=setTimeout(function(){"closed"!==e.readyState&&e.onClose("ping timeout")},t||e.pingInterval+e.pingTimeout)},r.prototype.setPing=function(){var t=this;clearTimeout(t.pingIntervalTimer),t.pingIntervalTimer=setTimeout(function(){a("writing ping packet - expecting pong within %sms",t.pingTimeout),t.ping(),t.onHeartbeat(t.pingTimeout)},t.pingInterval)},r.prototype.ping=function(){var t=this;this.sendPacket("ping",function(){t.emit("ping")})},r.prototype.onDrain=function(){this.writeBuffer.splice(0,this.prevBufferLen),this.prevBufferLen=0,0===this.writeBuffer.length?this.emit("drain"):this.flush()},r.prototype.flush=function(){"closed"!==this.readyState&&this.transport.writable&&!this.upgrading&&this.writeBuffer.length&&(a("flushing %d packets in socket",this.writeBuffer.length),this.transport.send(this.writeBuffer),this.prevBufferLen=this.writeBuffer.length,this.emit("flush"))},r.prototype.write=r.prototype.send=function(t,e,n){return this.sendPacket("message",t,e,n),this},r.prototype.sendPacket=function(t,e,n,r){if("function"==typeof e&&(r=e,e=void 0),"function"==typeof n&&(r=n,n=null),"closing"!==this.readyState&&"closed"!==this.readyState){n=n||{},n.compress=!1!==n.compress;var o={type:t,data:e,options:n};this.emit("packetCreate",o),this.writeBuffer.push(o),r&&this.once("flush",r),this.flush()}},r.prototype.close=function(){function t(){r.onClose("forced close"),a("socket closing - telling transport to close"),r.transport.close()}function e(){r.removeListener("upgrade",e),r.removeListener("upgradeError",e),t()}function n(){r.once("upgrade",e),r.once("upgradeError",e)}if("opening"===this.readyState||"open"===this.readyState){this.readyState="closing";var r=this;this.writeBuffer.length?this.once("drain",function(){this.upgrading?n():t()}):this.upgrading?n():t()}return this},r.prototype.onError=function(t){a("socket error %j",t),r.priorWebsocketSuccess=!1,this.emit("error",t),this.onClose("transport error",t)},r.prototype.onClose=function(t,e){if("opening"===this.readyState||"open"===this.readyState||"closing"===this.readyState){a('socket close with reason: "%s"',t);var n=this;clearTimeout(this.pingIntervalTimer),clearTimeout(this.pingTimeoutTimer),this.transport.removeAllListeners("close"),this.transport.close(),this.transport.removeAllListeners(),this.readyState="closed",this.id=null,this.emit("close",t,e),n.writeBuffer=[],n.prevBufferLen=0}},r.prototype.filterUpgrades=function(t){for(var e=[],n=0,r=t.length;n<r;n++)~c(this.transports,t[n])&&e.push(t[n]);return e}}).call(e,function(){return this}())},function(t,e,n){(function(t){function r(e){var n,r=!1,a=!1,c=!1!==e.jsonp;if(t.location){var p="https:"===location.protocol,u=location.port;u||(u=p?443:80),r=e.hostname!==location.hostname||u!==e.port,a=e.secure!==p}if(e.xdomain=r,e.xscheme=a,n=new o(e),"open"in n&&!e.forceJSONP)return new i(e);if(!c)throw new Error("JSONP disabled");return new s(e)}var o=n(18),i=n(20),s=n(34),a=n(35);e.polling=r,e.websocket=a}).call(e,function(){return this}())},function(t,e,n){(function(e){var r=n(19);t.exports=function(t){var n=t.xdomain,o=t.xscheme,i=t.enablesXDR;try{if("undefined"!=typeof XMLHttpRequest&&(!n||r))return new XMLHttpRequest}catch(s){}try{if("undefined"!=typeof XDomainRequest&&!o&&i)return new XDomainRequest}catch(s){}if(!n)try{
2 | return new(e[["Active"].concat("Object").join("X")])("Microsoft.XMLHTTP")}catch(s){}}}).call(e,function(){return this}())},function(t,e){try{t.exports="undefined"!=typeof XMLHttpRequest&&"withCredentials"in new XMLHttpRequest}catch(n){t.exports=!1}},function(t,e,n){(function(e){function r(){}function o(t){if(c.call(this,t),this.requestTimeout=t.requestTimeout,this.extraHeaders=t.extraHeaders,e.location){var n="https:"===location.protocol,r=location.port;r||(r=n?443:80),this.xd=t.hostname!==e.location.hostname||r!==t.port,this.xs=t.secure!==n}}function i(t){this.method=t.method||"GET",this.uri=t.uri,this.xd=!!t.xd,this.xs=!!t.xs,this.async=!1!==t.async,this.data=void 0!==t.data?t.data:null,this.agent=t.agent,this.isBinary=t.isBinary,this.supportsBinary=t.supportsBinary,this.enablesXDR=t.enablesXDR,this.requestTimeout=t.requestTimeout,this.pfx=t.pfx,this.key=t.key,this.passphrase=t.passphrase,this.cert=t.cert,this.ca=t.ca,this.ciphers=t.ciphers,this.rejectUnauthorized=t.rejectUnauthorized,this.extraHeaders=t.extraHeaders,this.create()}function s(){for(var t in i.requests)i.requests.hasOwnProperty(t)&&i.requests[t].abort()}var a=n(18),c=n(21),p=n(8),u=n(32),h=n(3)("engine.io-client:polling-xhr");t.exports=o,t.exports.Request=i,u(o,c),o.prototype.supportsBinary=!0,o.prototype.request=function(t){return t=t||{},t.uri=this.uri(),t.xd=this.xd,t.xs=this.xs,t.agent=this.agent||!1,t.supportsBinary=this.supportsBinary,t.enablesXDR=this.enablesXDR,t.pfx=this.pfx,t.key=this.key,t.passphrase=this.passphrase,t.cert=this.cert,t.ca=this.ca,t.ciphers=this.ciphers,t.rejectUnauthorized=this.rejectUnauthorized,t.requestTimeout=this.requestTimeout,t.extraHeaders=this.extraHeaders,new i(t)},o.prototype.doWrite=function(t,e){var n="string"!=typeof t&&void 0!==t,r=this.request({method:"POST",data:t,isBinary:n}),o=this;r.on("success",e),r.on("error",function(t){o.onError("xhr post error",t)}),this.sendXhr=r},o.prototype.doPoll=function(){h("xhr poll");var t=this.request(),e=this;t.on("data",function(t){e.onData(t)}),t.on("error",function(t){e.onError("xhr poll error",t)}),this.pollXhr=t},p(i.prototype),i.prototype.create=function(){var t={agent:this.agent,xdomain:this.xd,xscheme:this.xs,enablesXDR:this.enablesXDR};t.pfx=this.pfx,t.key=this.key,t.passphrase=this.passphrase,t.cert=this.cert,t.ca=this.ca,t.ciphers=this.ciphers,t.rejectUnauthorized=this.rejectUnauthorized;var n=this.xhr=new a(t),r=this;try{h("xhr open %s: %s",this.method,this.uri),n.open(this.method,this.uri,this.async);try{if(this.extraHeaders){n.setDisableHeaderCheck&&n.setDisableHeaderCheck(!0);for(var o in this.extraHeaders)this.extraHeaders.hasOwnProperty(o)&&n.setRequestHeader(o,this.extraHeaders[o])}}catch(s){}if("POST"===this.method)try{this.isBinary?n.setRequestHeader("Content-type","application/octet-stream"):n.setRequestHeader("Content-type","text/plain;charset=UTF-8")}catch(s){}try{n.setRequestHeader("Accept","*/*")}catch(s){}"withCredentials"in n&&(n.withCredentials=!0),this.requestTimeout&&(n.timeout=this.requestTimeout),this.hasXDR()?(n.onload=function(){r.onLoad()},n.onerror=function(){r.onError(n.responseText)}):n.onreadystatechange=function(){if(2===n.readyState){var t;try{t=n.getResponseHeader("Content-Type")}catch(e){}"application/octet-stream"===t&&(n.responseType="arraybuffer")}4===n.readyState&&(200===n.status||1223===n.status?r.onLoad():setTimeout(function(){r.onError(n.status)},0))},h("xhr data %s",this.data),n.send(this.data)}catch(s){return void setTimeout(function(){r.onError(s)},0)}e.document&&(this.index=i.requestsCount++,i.requests[this.index]=this)},i.prototype.onSuccess=function(){this.emit("success"),this.cleanup()},i.prototype.onData=function(t){this.emit("data",t),this.onSuccess()},i.prototype.onError=function(t){this.emit("error",t),this.cleanup(!0)},i.prototype.cleanup=function(t){if("undefined"!=typeof this.xhr&&null!==this.xhr){if(this.hasXDR()?this.xhr.onload=this.xhr.onerror=r:this.xhr.onreadystatechange=r,t)try{this.xhr.abort()}catch(n){}e.document&&delete i.requests[this.index],this.xhr=null}},i.prototype.onLoad=function(){var t;try{var e;try{e=this.xhr.getResponseHeader("Content-Type")}catch(n){}t="application/octet-stream"===e?this.xhr.response||this.xhr.responseText:this.xhr.responseText}catch(n){this.onError(n)}null!=t&&this.onData(t)},i.prototype.hasXDR=function(){return"undefined"!=typeof e.XDomainRequest&&!this.xs&&this.enablesXDR},i.prototype.abort=function(){this.cleanup()},i.requestsCount=0,i.requests={},e.document&&(e.attachEvent?e.attachEvent("onunload",s):e.addEventListener&&e.addEventListener("beforeunload",s,!1))}).call(e,function(){return this}())},function(t,e,n){function r(t){var e=t&&t.forceBase64;u&&!e||(this.supportsBinary=!1),o.call(this,t)}var o=n(22),i=n(31),s=n(23),a=n(32),c=n(33),p=n(3)("engine.io-client:polling");t.exports=r;var u=function(){var t=n(18),e=new t({xdomain:!1});return null!=e.responseType}();a(r,o),r.prototype.name="polling",r.prototype.doOpen=function(){this.poll()},r.prototype.pause=function(t){function e(){p("paused"),n.readyState="paused",t()}var n=this;if(this.readyState="pausing",this.polling||!this.writable){var r=0;this.polling&&(p("we are currently polling - waiting to pause"),r++,this.once("pollComplete",function(){p("pre-pause polling complete"),--r||e()})),this.writable||(p("we are currently writing - waiting to pause"),r++,this.once("drain",function(){p("pre-pause writing complete"),--r||e()}))}else e()},r.prototype.poll=function(){p("polling"),this.polling=!0,this.doPoll(),this.emit("poll")},r.prototype.onData=function(t){var e=this;p("polling got data %s",t);var n=function(t,n,r){return"opening"===e.readyState&&e.onOpen(),"close"===t.type?(e.onClose(),!1):void e.onPacket(t)};s.decodePayload(t,this.socket.binaryType,n),"closed"!==this.readyState&&(this.polling=!1,this.emit("pollComplete"),"open"===this.readyState?this.poll():p('ignoring poll - transport state "%s"',this.readyState))},r.prototype.doClose=function(){function t(){p("writing close packet"),e.write([{type:"close"}])}var e=this;"open"===this.readyState?(p("transport open - closing"),t()):(p("transport not open - deferring close"),this.once("open",t))},r.prototype.write=function(t){var e=this;this.writable=!1;var n=function(){e.writable=!0,e.emit("drain")};s.encodePayload(t,this.supportsBinary,function(t){e.doWrite(t,n)})},r.prototype.uri=function(){var t=this.query||{},e=this.secure?"https":"http",n="";!1!==this.timestampRequests&&(t[this.timestampParam]=c()),this.supportsBinary||t.sid||(t.b64=1),t=i.encode(t),this.port&&("https"===e&&443!==Number(this.port)||"http"===e&&80!==Number(this.port))&&(n=":"+this.port),t.length&&(t="?"+t);var r=this.hostname.indexOf(":")!==-1;return e+"://"+(r?"["+this.hostname+"]":this.hostname)+n+this.path+t}},function(t,e,n){function r(t){this.path=t.path,this.hostname=t.hostname,this.port=t.port,this.secure=t.secure,this.query=t.query,this.timestampParam=t.timestampParam,this.timestampRequests=t.timestampRequests,this.readyState="",this.agent=t.agent||!1,this.socket=t.socket,this.enablesXDR=t.enablesXDR,this.pfx=t.pfx,this.key=t.key,this.passphrase=t.passphrase,this.cert=t.cert,this.ca=t.ca,this.ciphers=t.ciphers,this.rejectUnauthorized=t.rejectUnauthorized,this.forceNode=t.forceNode,this.extraHeaders=t.extraHeaders,this.localAddress=t.localAddress}var o=n(23),i=n(8);t.exports=r,i(r.prototype),r.prototype.onError=function(t,e){var n=new Error(t);return 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r=this.hostname.indexOf(":")!==-1;return e+"://"+(r?"["+this.hostname+"]":this.hostname)+n+this.path+t},r.prototype.check=function(){return!(!l||"__initialize"in l&&this.name===r.prototype.name)}}).call(e,function(){return this}())},function(t,e){},function(t,e){var n=[].indexOf;t.exports=function(t,e){if(n)return t.indexOf(e);for(var r=0;r<t.length;++r)if(t[r]===e)return r;return-1}},function(t,e){(function(e){var n=/^[\],:{}\s]*$/,r=/\\(?:["\\\/bfnrt]|u[0-9a-fA-F]{4})/g,o=/"[^"\\\n\r]*"|true|false|null|-?\d+(?:\.\d*)?(?:[eE][+\-]?\d+)?/g,i=/(?:^|:|,)(?:\s*\[)+/g,s=/^\s+/,a=/\s+$/;t.exports=function(t){return"string"==typeof t&&t?(t=t.replace(s,"").replace(a,""),e.JSON&&JSON.parse?JSON.parse(t):n.test(t.replace(r,"@").replace(o,"]").replace(i,""))?new Function("return "+t)():void 0):null}}).call(e,function(){return this}())},function(t,e,n){"use strict";function r(t,e,n){this.io=t,this.nsp=e,this.json=this,this.ids=0,this.acks={},this.receiveBuffer=[],this.sendBuffer=[],this.connected=!1,this.disconnected=!0,n&&n.query&&(this.query=n.query),this.io.autoConnect&&this.open()}var o="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(t){return typeof t}:function(t){return t&&"function"==typeof Symbol&&t.constructor===Symbol&&t!==Symbol.prototype?"symbol":typeof t},i=n(7),s=n(8),a=n(40),c=n(41),p=n(42),u=n(3)("socket.io-client:socket"),h=n(31);t.exports=e=r;var f={connect:1,connect_error:1,connect_timeout:1,connecting:1,disconnect:1,error:1,reconnect:1,reconnect_attempt:1,reconnect_failed:1,reconnect_error:1,reconnecting:1,ping:1,pong:1},l=s.prototype.emit;s(r.prototype),r.prototype.subEvents=function(){if(!this.subs){var t=this.io;this.subs=[c(t,"open",p(this,"onopen")),c(t,"packet",p(this,"onpacket")),c(t,"close",p(this,"onclose"))]}},r.prototype.open=r.prototype.connect=function(){return this.connected?this:(this.subEvents(),this.io.open(),"open"===this.io.readyState&&this.onopen(),this.emit("connecting"),this)},r.prototype.send=function(){var t=a(arguments);return t.unshift("message"),this.emit.apply(this,t),this},r.prototype.emit=function(t){if(f.hasOwnProperty(t))return l.apply(this,arguments),this;var e=a(arguments),n={type:i.EVENT,data:e};return n.options={},n.options.compress=!this.flags||!1!==this.flags.compress,"function"==typeof e[e.length-1]&&(u("emitting packet with ack id %d",this.ids),this.acks[this.ids]=e.pop(),n.id=this.ids++),this.connected?this.packet(n):this.sendBuffer.push(n),delete this.flags,this},r.prototype.packet=function(t){t.nsp=this.nsp,this.io.packet(t)},r.prototype.onopen=function(){if(u("transport is open - connecting"),"/"!==this.nsp)if(this.query){var t="object"===o(this.query)?h.encode(this.query):this.query;u("sending connect packet with query %s",t),this.packet({type:i.CONNECT,query:t})}else this.packet({type:i.CONNECT})},r.prototype.onclose=function(t){u("close (%s)",t),this.connected=!1,this.disconnected=!0,delete this.id,this.emit("disconnect",t)},r.prototype.onpacket=function(t){if(t.nsp===this.nsp)switch(t.type){case i.CONNECT:this.onconnect();break;case i.EVENT:this.onevent(t);break;case i.BINARY_EVENT:this.onevent(t);break;case i.ACK:this.onack(t);break;case i.BINARY_ACK:this.onack(t);break;case i.DISCONNECT:this.ondisconnect();break;case i.ERROR:this.emit("error",t.data)}},r.prototype.onevent=function(t){var e=t.data||[];u("emitting event %j",e),null!=t.id&&(u("attaching ack callback to event"),e.push(this.ack(t.id))),this.connected?l.apply(this,e):this.receiveBuffer.push(e)},r.prototype.ack=function(t){var e=this,n=!1;return function(){if(!n){n=!0;var r=a(arguments);u("sending ack %j",r),e.packet({type:i.ACK,id:t,data:r})}}},r.prototype.onack=function(t){var e=this.acks[t.id];"function"==typeof e?(u("calling ack %s with %j",t.id,t.data),e.apply(this,t.data),delete this.acks[t.id]):u("bad ack %s",t.id)},r.prototype.onconnect=function(){this.connected=!0,this.disconnected=!1,this.emit("connect"),this.emitBuffered()},r.prototype.emitBuffered=function(){var t;for(t=0;t<this.receiveBuffer.length;t++)l.apply(this,this.receiveBuffer[t]);for(this.receiveBuffer=[],t=0;t<this.sendBuffer.length;t++)this.packet(this.sendBuffer[t]);this.sendBuffer=[]},r.prototype.ondisconnect=function(){u("server disconnect (%s)",this.nsp),this.destroy(),this.onclose("io server disconnect")},r.prototype.destroy=function(){if(this.subs){for(var t=0;t<this.subs.length;t++)this.subs[t].destroy();this.subs=null}this.io.destroy(this)},r.prototype.close=r.prototype.disconnect=function(){return this.connected&&(u("performing disconnect (%s)",this.nsp),this.packet({type:i.DISCONNECT})),this.destroy(),this.connected&&this.onclose("io client disconnect"),this},r.prototype.compress=function(t){return this.flags=this.flags||{},this.flags.compress=t,this}},function(t,e){function n(t,e){var n=[];e=e||0;for(var r=e||0;r<t.length;r++)n[r-e]=t[r];return n}t.exports=n},function(t,e){"use strict";function n(t,e,n){return t.on(e,n),{destroy:function(){t.removeListener(e,n)}}}t.exports=n},function(t,e){var n=[].slice;t.exports=function(t,e){if("string"==typeof e&&(e=t[e]),"function"!=typeof e)throw new Error("bind() requires a function");var r=n.call(arguments,2);return function(){return e.apply(t,r.concat(n.call(arguments)))}}},function(t,e){function n(t){t=t||{},this.ms=t.min||100,this.max=t.max||1e4,this.factor=t.factor||2,this.jitter=t.jitter>0&&t.jitter<=1?t.jitter:0,this.attempts=0}t.exports=n,n.prototype.duration=function(){var t=this.ms*Math.pow(this.factor,this.attempts++);if(this.jitter){var e=Math.random(),n=Math.floor(e*this.jitter*t);t=0==(1&Math.floor(10*e))?t-n:t+n}return 0|Math.min(t,this.max)},n.prototype.reset=function(){this.attempts=0},n.prototype.setMin=function(t){this.ms=t},n.prototype.setMax=function(t){this.max=t},n.prototype.setJitter=function(t){this.jitter=t}}])});
3 | //# sourceMappingURL=socket.io.js.map
4 | 


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