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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) throws Exception {
    32          if (!readingChunks) {
    33              HttpResponse response = (HttpResponse) e.getMessage();
    34
    35              System.out.println("STATUS: " + response.getStatus());
    36              System.out.println("VERSION: " + response.getProtocolVersion());
    37              System.out.println();
    38
    39              if (!response.getHeaderNames().isEmpty()) {
    40                  for (String name: response.getHeaderNames()) {
    41                      for (String value: response.getHeaders(name)) {
    42                          System.out.println("HEADER: " + name + " = " + value);
    43                      }
    44                  }
    45                  System.out.println();
    46              }
    47
    48              if (response.isChunked()) {
    49                  readingChunks = true;
    50                  System.out.println("CHUNKED CONTENT {");
    51              } else {
    52                  ChannelBuffer content = response.getContent();
    53                  if (content.readable()) {
    54                      System.out.println("CONTENT {");
    55                      System.out.println(content.toString(CharsetUtil.UTF_8));
    56                      System.out.println("} END OF CONTENT");
    57                  }
    58              }
    59          } else {
    60              HttpChunk chunk = (HttpChunk) e.getMessage();
    61              if (chunk.isLast()) {
    62                  readingChunks = false;
    63                  System.out.println("} END OF CHUNKED CONTENT");
    64              } else {
    65                  System.out.print(chunk.getContent().toString(CharsetUtil.UTF_8));
    66                  System.out.flush();
    67              }
    68          }
    69      }
    70  }