2019-07-27 22:44:32 +08:00
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<html>
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2016-09-28 17:33:33 +08:00
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<meta charset="utf-8" />
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<title>WebSocket Chat</title>
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<script language="javascript" type="text/javascript">
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var wsUri = "ws://121.42.12.244:9001/";
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var ws = null;
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var logined = false;
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var user_list = new Array();
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function OnConnect(user) {
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wsUri = document.getElementById("url").value;
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openWebSocket(user);
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}
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function openWebSocket(user) {
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if (ws != null)
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ws.close();
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ws = new WebSocket(wsUri);
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ws.onmessage = function (evt) { onMessage(evt); };
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ws.onopen = function (evt) { onOpen(evt, user); };
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ws.onclose = function (evt) { onClose(evt); };
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ws.onerror = function (evt) { onError(evt); };
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}
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function onOpen(evt, user) {
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setStatus("connected ...");
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}
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function onClose(evt) {
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setStatus("disconnected ...");
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logined = false;
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user_list = new Array();
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ws = null;
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displayUsers();
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}
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function onError(evt) {
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setStatus('<span style="color: red;">ERROR:</span> ' + evt.data);
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}
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function onMessage(evt) {
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output = document.getElementById('output');
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var data = evt.data;
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var del1 = data.indexOf("|");
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if (del1 == -1) {
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setStatus("invalid data: " + data);
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return;
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}
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var cmd = data.substr(0, del1);
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switch (cmd) {
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case "status":
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onStatus(data.substring(del1 + 1));
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break;
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case "users":
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onUsers(data.substring(del1 + 1));
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break;
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case "login":
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onLogin(data.substring(del1 + 1));
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break;
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case "logout":
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onLogout(data.substring(del1 + 1));
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break;
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case "chat":
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onChat(data.substring(del1 + 1));
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break;
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default:
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break;
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}
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}
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function onChat(data) {
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var del2 = data.indexOf("|");
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if (del2 == -1) {
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setStatus("invalid data: " + data);
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return;
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}
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var from = data.substr(0, del2);
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var msg = data.substring(del2 + 1);
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data = output.innerHTML + "<font color='blue'>" + from + "> " + msg + "</front><br>";
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output.innerHTML = data;
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output.scrollTop = output.scrollHeight;
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}
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function onStatus(data) {
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setStatus(data);
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}
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function userExist(user) {
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for (var i = 0; i < user_list.length; i++) {
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if (user_list[i] == user)
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return true;
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}
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return false;
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}
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function displayUsers() {
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var users = "";
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for (var i = 0; i < user_list.length; i++) {
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users += user_list[i] + "<br>";
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}
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document.getElementById("users").innerHTML = users;
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}
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function onUsers(data) {
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setStatus("login ok");
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var tokens = data.split("|");
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for (var i = 0; i < tokens.length; i++) {
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if (!userExist(tokens[i]))
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user_list.push(tokens[i]);
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}
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displayUsers();
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}
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function onLogin(user) {
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logined = true;
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if (userExist(user))
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return;
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document.getElementById("users").innerHTML += user + "<br>";
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user_list.push(user);
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}
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function onLogout(user) {
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for (var i = 0; i < user_list.length; i++) {
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if (user_list[i] == user) {
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user_list.splice(i, 1);
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break;
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}
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}
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displayUsers();
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}
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function doLogin(user) {
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if (ws == null) {
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alert("Please connect first!");
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document.all.connect.focus();
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return;
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}
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var user = document.getElementById(user).value;
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if (user.length == 0) {
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alert("Please enter your name!");
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document.all.user.focus();
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return;
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}
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message = "login|" + user;
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ws.send(message);
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}
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function doSend(to, msgid) {
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if (!logined) {
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alert("Please login first!");
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document.all.login.focus();
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return;
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}
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var to_user = document.getElementById(to).value;
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var msg = document.getElementById(msgid).value;
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if (msg.length == 0)
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return;
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message = "chat|" + msg + "|" + to_user;
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ws.send(message);
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document.getElementById(msgid).value = "";
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}
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function doClear(output) {
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document.getElementById(output).innerHTML = "";
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}
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function setStatus(message) {
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node = document.getElementById("status");
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node.innerHTML = '<font style="color: blue; height: 10px;">' + message + '</font>';
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}
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</script>
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<body>
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<div style="float:left;">
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<fieldset style="width:530px;">
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<legend>WebSocket Chat</legend>
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<p><span>Server url:</span>
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<input id="url" type="text" value="ws://121.42.12.244:9001/" />
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<input type="button" id="connect" value="connect" onclick="OnConnect('user');" />
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</p>
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<p>
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me: <input id="user" type="text" value="" />
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<input type="button" id="login" value="login" onclick="doLogin('user');" />
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</p>
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<p>
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to: <input id="to_user" type="text" value="all" />
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<br>
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<br>
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<input type=text id="msg" size="60px" value="hello world!"
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onkeydown = "if (event.keyCode==13) doSend('to_user', 'msg');"/>
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<input type="button" value="send" onclick="doSend('to_user', 'msg');" />
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<input type="button" value="clear" onclick="doClear('output');" />
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</p>
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<fieldset>
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<div id="output" style="width:500px;height:300px; overflow:auto;"></div>
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<hr>
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<div id="status" style="width:500px;height:25px; overflow:auto;" align = "right"> </div>
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2019-07-27 22:44:32 +08:00
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<div><a href="https://github.com/zhengshuxin/acl/tree/master/app/wizard_demo/fiber_chat" target=_blank>婧愮爜</a></div>
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2016-09-28 17:33:33 +08:00
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</fieldset>
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</fieldset>
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</div>
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<div style="float:auto; margin:10px">
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<fieldset style="width:150px; height:500px;">
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<legend>User List</legend>
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<div id="users"></div>
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</fieldset>
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</div>
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</body>
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</html>
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