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 * https://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 SecureChatClientInitializer extends ChannelInitializer<SocketChannel> {
31
32 private final SslContext sslCtx;
33
34 public SecureChatClientInitializer(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(), SecureChatClient.HOST, SecureChatClient.PORT));
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 SecureChatClientHandler());
56 }
57 }