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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.bootstrap.ClientBootstrap;
19  import org.jboss.netty.channel.Channel;
20  import org.jboss.netty.channel.ChannelFuture;
21  import org.jboss.netty.channel.socket.nio.NioClientSocketChannelFactory;
22  import org.jboss.netty.handler.codec.http.CookieEncoder;
23  import org.jboss.netty.handler.codec.http.DefaultHttpRequest;
24  import org.jboss.netty.handler.codec.http.HttpHeaders;
25  import org.jboss.netty.handler.codec.http.HttpMethod;
26  import org.jboss.netty.handler.codec.http.HttpRequest;
27  import org.jboss.netty.handler.codec.http.HttpVersion;
28  import org.jboss.netty.handler.ssl.SslContext;
29  import org.jboss.netty.handler.ssl.util.InsecureTrustManagerFactory;
30  
31  import java.net.InetSocketAddress;
32  import java.net.URI;
33  import java.util.concurrent.Executors;
34  
35  /**
36   * A simple HTTP client that prints out the content of the HTTP response to
37   * {@link System#out} to test {@link HttpSnoopServer}.
38   */
39  public final class HttpSnoopClient {
40  
41      static final String URL = System.getProperty("url", "http://127.0.0.1:8080/");
42  
43      public static void main(String[] args) throws Exception {
44          URI uri = new URI(URL);
45          String scheme = uri.getScheme() == null? "http" : uri.getScheme();
46          String host = uri.getHost() == null? "127.0.0.1" : uri.getHost();
47          int port = uri.getPort();
48          if (port == -1) {
49              if ("http".equalsIgnoreCase(scheme)) {
50                  port = 80;
51              } else if ("https".equalsIgnoreCase(scheme)) {
52                  port = 443;
53              }
54          }
55  
56          if (!"http".equalsIgnoreCase(scheme) && !"https".equalsIgnoreCase(scheme)) {
57              System.err.println("Only HTTP(S) is supported.");
58              return;
59          }
60  
61          // Configure SSL context if necessary.
62          final boolean ssl = "https".equalsIgnoreCase(scheme);
63          final SslContext sslCtx;
64          if (ssl) {
65              sslCtx = SslContext.newClientContext(InsecureTrustManagerFactory.INSTANCE);
66          } else {
67              sslCtx = null;
68          }
69  
70          // Configure the client.
71          ClientBootstrap bootstrap = new ClientBootstrap(
72                  new NioClientSocketChannelFactory(
73                          Executors.newCachedThreadPool(),
74                          Executors.newCachedThreadPool()));
75  
76          try {
77              // Set up the event pipeline factory.
78              bootstrap.setPipelineFactory(new HttpSnoopClientPipelineFactory(sslCtx, host, port));
79  
80              // Start the connection attempt.
81              ChannelFuture future = bootstrap.connect(new InetSocketAddress(host, port));
82  
83              // Wait until the connection attempt succeeds or fails.
84              Channel channel = future.sync().getChannel();
85  
86              // Prepare the HTTP request.
87              HttpRequest request = new DefaultHttpRequest(
88                      HttpVersion.HTTP_1_1, HttpMethod.GET, uri.getRawPath());
89              request.headers().set(HttpHeaders.Names.HOST, host);
90              request.headers().set(HttpHeaders.Names.CONNECTION, HttpHeaders.Values.CLOSE);
91              request.headers().set(HttpHeaders.Names.ACCEPT_ENCODING, HttpHeaders.Values.GZIP);
92  
93              // Set some example cookies.
94              CookieEncoder httpCookieEncoder = new CookieEncoder(false);
95              httpCookieEncoder.addCookie("my-cookie", "foo");
96              httpCookieEncoder.addCookie("another-cookie", "bar");
97              request.headers().set(HttpHeaders.Names.COOKIE, httpCookieEncoder.encode());
98  
99              // Send the HTTP request.
100             channel.write(request);
101 
102             // Wait for the server to close the connection.
103             channel.getCloseFuture().sync();
104         } finally {
105             // Shut down executor threads to exit.
106             bootstrap.releaseExternalResources();
107         }
108     }
109 }