<?xml version="1.0" encoding="UTF-8"?>
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<!--
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Licensed to the Apache Software Foundation (ASF) under one or more
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contributor license agreements. See the NOTICE file distributed with
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this work for additional information regarding copyright ownership.
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The ASF licenses this file to You under the Apache License, Version 2.0
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(the "License"); you may not use this file except in compliance with
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the License. You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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-->
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<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en">
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<head>
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<title>Apache Tomcat WebSocket Examples: Chat</title>
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<style type="text/css"><![CDATA[
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input#chat {
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width: 410px
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}
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#console-container {
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width: 400px;
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}
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#console {
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border: 1px solid #CCCCCC;
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border-right-color: #999999;
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border-bottom-color: #999999;
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height: 170px;
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overflow-y: scroll;
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padding: 5px;
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width: 100%;
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}
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#console p {
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padding: 0;
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margin: 0;
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}
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]]></style>
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<script type="application/javascript"><![CDATA[
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"use strict";
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var Chat = {};
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Chat.socket = null;
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Chat.connect = (function(host) {
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if ('WebSocket' in window) {
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Chat.socket = new WebSocket(host);
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} else if ('MozWebSocket' in window) {
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Chat.socket = new MozWebSocket(host);
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} else {
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Console.log('Error: WebSocket is not supported by this browser.');
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return;
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}
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Chat.socket.onopen = function () {
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Console.log('Info: WebSocket connection opened.');
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document.getElementById('chat').onkeydown = function(event) {
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if (event.keyCode == 13) {
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Chat.sendMessage();
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}
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};
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};
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Chat.socket.onclose = function () {
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document.getElementById('chat').onkeydown = null;
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Console.log('Info: WebSocket closed.');
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};
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Chat.socket.onmessage = function (message) {
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Console.log(message.data);
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};
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});
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Chat.initialize = function() {
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if (window.location.protocol == 'http:') {
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Chat.connect('ws://' + window.location.host + '/examples/websocket/chat');
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} else {
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Chat.connect('wss://' + window.location.host + '/examples/websocket/chat');
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}
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};
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Chat.sendMessage = (function() {
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var message = document.getElementById('chat').value;
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if (message != '') {
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Chat.socket.send(message);
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document.getElementById('chat').value = '';
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}
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});
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var Console = {};
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Console.log = (function(message) {
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var console = document.getElementById('console');
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var p = document.createElement('p');
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p.style.wordWrap = 'break-word';
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p.innerHTML = message;
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console.appendChild(p);
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while (console.childNodes.length > 25) {
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console.removeChild(console.firstChild);
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}
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console.scrollTop = console.scrollHeight;
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});
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Chat.initialize();
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document.addEventListener("DOMContentLoaded", function() {
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// Remove elements with "noscript" class - <noscript> is not allowed in XHTML
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var noscripts = document.getElementsByClassName("noscript");
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for (var i = 0; i < noscripts.length; i++) {
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noscripts[i].parentNode.removeChild(noscripts[i]);
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}
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}, false);
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]]></script>
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</head>
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<body>
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<div class="noscript"><h2 style="color: #ff0000">Seems your browser doesn't support JavaScript! Websockets rely on JavaScript being enabled. Please enable
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JavaScript and reload this page!</h2></div>
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<div>
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<p>
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<input type="text" placeholder="type and press enter to chat" id="chat" />
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</p>
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<div id="console-container">
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<div id="console"/>
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</div>
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</div>
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</body>
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</html>
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