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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.helloworld;
17  
18  import io.netty.bootstrap.ServerBootstrap;
19  import io.netty.channel.Channel;
20  import io.netty.channel.ChannelOption;
21  import io.netty.channel.EventLoopGroup;
22  import io.netty.channel.nio.NioEventLoopGroup;
23  import io.netty.channel.socket.nio.NioServerSocketChannel;
24  import io.netty.handler.logging.LogLevel;
25  import io.netty.handler.logging.LoggingHandler;
26  import io.netty.handler.ssl.SslContext;
27  import io.netty.handler.ssl.util.SelfSignedCertificate;
28  
29  /**
30   * An HTTP server that sends back the content of the received HTTP request
31   * in a pretty plaintext form.
32   */
33  public final class HttpHelloWorldServer {
34  
35      static final boolean SSL = System.getProperty("ssl") != null;
36      static final int PORT = Integer.parseInt(System.getProperty("port", SSL? "8443" : "8080"));
37  
38      public static void main(String[] args) throws Exception {
39          // Configure SSL.
40          final SslContext sslCtx;
41          if (SSL) {
42              SelfSignedCertificate ssc = new SelfSignedCertificate();
43              sslCtx = SslContext.newServerContext(ssc.certificate(), ssc.privateKey());
44          } else {
45              sslCtx = null;
46          }
47  
48          // Configure the server.
49          EventLoopGroup bossGroup = new NioEventLoopGroup(1);
50          EventLoopGroup workerGroup = new NioEventLoopGroup();
51          try {
52              ServerBootstrap b = new ServerBootstrap();
53              b.option(ChannelOption.SO_BACKLOG, 1024);
54              b.group(bossGroup, workerGroup)
55               .channel(NioServerSocketChannel.class)
56               .handler(new LoggingHandler(LogLevel.INFO))
57               .childHandler(new HttpHelloWorldServerInitializer(sslCtx));
58  
59              Channel ch = b.bind(PORT).sync().channel();
60  
61              System.err.println("Open your web browser and navigate to " +
62                      (SSL? "https" : "http") + "://127.0.0.1:" + PORT + '/');
63  
64              ch.closeFuture().sync();
65          } finally {
66              bossGroup.shutdownGracefully();
67              workerGroup.shutdownGracefully();
68          }
69      }
70  }