1 /*
2 * Copyright 2012 The Netty Project
3 *
4 * The Netty Project licenses this file to you under the Apache License,
5 * version 2.0 (the "License"); you may not use this file except in compliance
6 * with the License. You may obtain a copy of the License at:
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
12 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
13 * License for the specific language governing permissions and limitations
14 * under the License.
15 */
16 package io.netty.example.http.websocketx.server;
17
18 import io.netty.bootstrap.ServerBootstrap;
19 import io.netty.channel.Channel;
20 import io.netty.channel.EventLoopGroup;
21 import io.netty.channel.nio.NioEventLoopGroup;
22 import io.netty.channel.socket.nio.NioServerSocketChannel;
23 import io.netty.handler.logging.LogLevel;
24 import io.netty.handler.logging.LoggingHandler;
25 import io.netty.handler.ssl.SslContext;
26 import io.netty.handler.ssl.SslContextBuilder;
27 import io.netty.handler.ssl.util.SelfSignedCertificate;
28
29 /**
30 * A HTTP server which serves Web Socket requests at:
31 *
32 * http://localhost:8080/websocket
33 *
34 * Open your browser at <a href="http://localhost:8080/">http://localhost:8080/</a>, then the demo page will be loaded
35 * and a Web Socket connection will be made automatically.
36 *
37 * This server illustrates support for the different web socket specification versions and will work with:
38 *
39 * <ul>
40 * <li>Safari 5+ (draft-ietf-hybi-thewebsocketprotocol-00)
41 * <li>Chrome 6-13 (draft-ietf-hybi-thewebsocketprotocol-00)
42 * <li>Chrome 14+ (draft-ietf-hybi-thewebsocketprotocol-10)
43 * <li>Chrome 16+ (RFC 6455 aka draft-ietf-hybi-thewebsocketprotocol-17)
44 * <li>Firefox 7+ (draft-ietf-hybi-thewebsocketprotocol-10)
45 * <li>Firefox 11+ (RFC 6455 aka draft-ietf-hybi-thewebsocketprotocol-17)
46 * </ul>
47 */
48 public final class WebSocketServer {
49
50 static final boolean SSL = System.getProperty("ssl") != null;
51 static final int PORT = Integer.parseInt(System.getProperty("port", SSL? "8443" : "8080"));
52
53 public static void main(String[] args) throws Exception {
54 // Configure SSL.
55 final SslContext sslCtx;
56 if (SSL) {
57 SelfSignedCertificate ssc = new SelfSignedCertificate();
58 sslCtx = SslContextBuilder.forServer(ssc.certificate(), ssc.privateKey()).build();
59 } else {
60 sslCtx = null;
61 }
62
63 EventLoopGroup bossGroup = new NioEventLoopGroup(1);
64 EventLoopGroup workerGroup = new NioEventLoopGroup();
65 try {
66 ServerBootstrap b = new ServerBootstrap();
67 b.group(bossGroup, workerGroup)
68 .channel(NioServerSocketChannel.class)
69 .handler(new LoggingHandler(LogLevel.INFO))
70 .childHandler(new WebSocketServerInitializer(sslCtx));
71
72 Channel ch = b.bind(PORT).sync().channel();
73
74 System.out.println("Open your web browser and navigate to " +
75 (SSL? "https" : "http") + "://127.0.0.1:" + PORT + '/');
76
77 ch.closeFuture().sync();
78 } finally {
79 bossGroup.shutdownGracefully();
80 workerGroup.shutdownGracefully();
81 }
82 }
83 }