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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.http.snoop;
17  
18  import org.jboss.netty.buffer.ChannelBuffer;
19  import org.jboss.netty.channel.ChannelHandlerContext;
20  import org.jboss.netty.channel.MessageEvent;
21  import org.jboss.netty.channel.SimpleChannelUpstreamHandler;
22  import org.jboss.netty.handler.codec.http.HttpChunk;
23  import org.jboss.netty.handler.codec.http.HttpResponse;
24  import org.jboss.netty.util.CharsetUtil;
25  
26  public class HttpSnoopClientHandler extends SimpleChannelUpstreamHandler {
27  
28      private boolean readingChunks;
29  
30      @Override
31      public void messageReceived(ChannelHandlerContext ctx, MessageEvent e) {
32          if (!readingChunks) {
33              HttpResponse response = (HttpResponse) e.getMessage();
34  
35              System.err.println("STATUS: " + response.getStatus());
36              System.err.println("VERSION: " + response.getProtocolVersion());
37              System.err.println();
38  
39              if (!response.headers().names().isEmpty()) {
40                  for (String name: response.headers().names()) {
41                      for (String value: response.headers().getAll(name)) {
42                          System.err.println("HEADER: " + name + " = " + value);
43                      }
44                  }
45                  System.err.println();
46              }
47  
48              if (response.isChunked()) {
49                  readingChunks = true;
50                  System.err.println("CHUNKED CONTENT {");
51              } else {
52                  ChannelBuffer content = response.getContent();
53                  if (content.readable()) {
54                      System.err.println("CONTENT {");
55                      System.err.println(content.toString(CharsetUtil.UTF_8));
56                      System.err.println("} END OF CONTENT");
57                  }
58              }
59          } else {
60              HttpChunk chunk = (HttpChunk) e.getMessage();
61              if (chunk.isLast()) {
62                  readingChunks = false;
63                  System.err.println("} END OF CHUNKED CONTENT");
64              } else {
65                  System.err.print(chunk.getContent().toString(CharsetUtil.UTF_8));
66                  System.err.flush();
67              }
68          }
69      }
70  }