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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.securechat;
17  
18  import io.netty.channel.ChannelInitializer;
19  import io.netty.channel.ChannelPipeline;
20  import io.netty.channel.socket.SocketChannel;
21  import io.netty.handler.codec.DelimiterBasedFrameDecoder;
22  import io.netty.handler.codec.Delimiters;
23  import io.netty.handler.codec.string.StringDecoder;
24  import io.netty.handler.codec.string.StringEncoder;
25  import io.netty.handler.ssl.SslContext;
26  
27  /**
28   * Creates a newly configured {@link ChannelPipeline} for a new channel.
29   */
30  public class SecureChatServerInitializer extends ChannelInitializer<SocketChannel> {
31  
32      private final SslContext sslCtx;
33  
34      public SecureChatServerInitializer(SslContext sslCtx) {
35          this.sslCtx = sslCtx;
36      }
37  
38      @Override
39      public void initChannel(SocketChannel ch) throws Exception {
40          ChannelPipeline pipeline = ch.pipeline();
41  
42          // Add SSL handler first to encrypt and decrypt everything.
43          // In this example, we use a bogus certificate in the server side
44          // and accept any invalid certificates in the client side.
45          // You will need something more complicated to identify both
46          // and server in the real world.
47          pipeline.addLast(sslCtx.newHandler(ch.alloc()));
48  
49          // On top of the SSL handler, add the text line codec.
50          pipeline.addLast(new DelimiterBasedFrameDecoder(8192, Delimiters.lineDelimiter()));
51          pipeline.addLast(new StringDecoder());
52          pipeline.addLast(new StringEncoder());
53  
54          // and then business logic.
55          pipeline.addLast(new SecureChatServerHandler());
56      }
57  }