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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 org.jboss.netty.example.securechat;
    17
    18  import static org.jboss.netty.channel.Channels.*;
    19
    20  import javax.net.ssl.SSLEngine;
    21
    22  import org.jboss.netty.channel.ChannelPipeline;
    23  import org.jboss.netty.channel.ChannelPipelineFactory;
    24  import org.jboss.netty.handler.codec.frame.DelimiterBasedFrameDecoder;
    25  import org.jboss.netty.handler.codec.frame.Delimiters;
    26  import org.jboss.netty.handler.codec.string.StringDecoder;
    27  import org.jboss.netty.handler.codec.string.StringEncoder;
    28  import org.jboss.netty.handler.ssl.SslHandler;
    29
    30  /**
    31   * Creates a newly configured {@link ChannelPipeline} for a new channel.
    32   */
    33  public class SecureChatClientPipelineFactory implements
    34          ChannelPipelineFactory {
    35
    36      public ChannelPipeline getPipeline() throws Exception {
    37          ChannelPipeline pipeline = pipeline();
    38
    39          // Add SSL handler first to encrypt and decrypt everything.
    40          // In this example, we use a bogus certificate in the server side
    41          // and accept any invalid certificates in the client side.
    42          // You will need something more complicated to identify both
    43          // and server in the real world.
    44
    45          SSLEngine engine =
    46              SecureChatSslContextFactory.getClientContext().createSSLEngine();
    47          engine.setUseClientMode(true);
    48
    49          pipeline.addLast("ssl", new SslHandler(engine));
    50
    51          // On top of the SSL handler, add the text line codec.
    52          pipeline.addLast("framer", new DelimiterBasedFrameDecoder(
    53                  8192, Delimiters.lineDelimiter()));
    54          pipeline.addLast("decoder", new StringDecoder());
    55          pipeline.addLast("encoder", new StringEncoder());
    56
    57          // and then business logic.
    58          pipeline.addLast("handler", new SecureChatClientHandler());
    59
    60          return pipeline;
    61      }
    62  }