/*
    * Copyright 2012 The Netty Project
    *
    * The Netty Project licenses this file to you under the Apache License,
    * version 2.0 (the "License"); you may not use this file except in compliance
    * with the License. You may obtain a copy of the License at:
    *
    *   http://www.apache.org/licenses/LICENSE-2.0
    *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
   * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
   * License for the specific language governing permissions and limitations
   * under the License.
   */
  package org.jboss.netty.example.http.snoop;
  
  import org.jboss.netty.bootstrap.ClientBootstrap;
  import org.jboss.netty.channel.Channel;
  import org.jboss.netty.channel.ChannelFuture;
  import org.jboss.netty.channel.socket.nio.NioClientSocketChannelFactory;
  import org.jboss.netty.handler.codec.http.CookieEncoder;
  import org.jboss.netty.handler.codec.http.DefaultHttpRequest;
  import org.jboss.netty.handler.codec.http.HttpHeaders;
  import org.jboss.netty.handler.codec.http.HttpMethod;
  import org.jboss.netty.handler.codec.http.HttpRequest;
  import org.jboss.netty.handler.codec.http.HttpVersion;
  import org.jboss.netty.handler.ssl.SslContext;
  import org.jboss.netty.handler.ssl.util.InsecureTrustManagerFactory;
  
  import java.net.InetSocketAddress;
  import java.net.URI;
  import java.util.concurrent.Executors;
  
  /**
   * A simple HTTP client that prints out the content of the HTTP response to
   * {@link System#out} to test {@link HttpSnoopServer}.
   */
  public final class HttpSnoopClient {
  
      static final String URL = System.getProperty("url", "http://127.0.0.1:8080/");
  
      public static void main(String[] args) throws Exception {
          URI uri = new URI(URL);
          String scheme = uri.getScheme() == null? "http" : uri.getScheme();
          String host = uri.getHost() == null? "127.0.0.1" : uri.getHost();
          int port = uri.getPort();
          if (port == -1) {
              if ("http".equalsIgnoreCase(scheme)) {
                  port = 80;
              } else if ("https".equalsIgnoreCase(scheme)) {
                  port = 443;
              }
          }
  
          if (!"http".equalsIgnoreCase(scheme) && !"https".equalsIgnoreCase(scheme)) {
              System.err.println("Only HTTP(S) is supported.");
              return;
          }
  
          // Configure SSL context if necessary.
          final boolean ssl = "https".equalsIgnoreCase(scheme);
          final SslContext sslCtx;
          if (ssl) {
              sslCtx = SslContext.newClientContext(InsecureTrustManagerFactory.INSTANCE);
          } else {
              sslCtx = null;
          }
  
          // Configure the client.
          ClientBootstrap bootstrap = new ClientBootstrap(
                  new NioClientSocketChannelFactory(
                          Executors.newCachedThreadPool(),
                          Executors.newCachedThreadPool()));
  
          try {
              // Set up the event pipeline factory.
              bootstrap.setPipelineFactory(new HttpSnoopClientPipelineFactory(sslCtx, host, port));
  
              // Start the connection attempt.
              ChannelFuture future = bootstrap.connect(new InetSocketAddress(host, port));
  
              // Wait until the connection attempt succeeds or fails.
              Channel channel = future.sync().getChannel();
  
              // Prepare the HTTP request.
              HttpRequest request = new DefaultHttpRequest(
                      HttpVersion.HTTP_1_1, HttpMethod.GET, uri.getRawPath());
              request.headers().set(HttpHeaders.Names.HOST, host);
              request.headers().set(HttpHeaders.Names.CONNECTION, HttpHeaders.Values.CLOSE);
              request.headers().set(HttpHeaders.Names.ACCEPT_ENCODING, HttpHeaders.Values.GZIP);
  
              // Set some example cookies.
              CookieEncoder httpCookieEncoder = new CookieEncoder(false);
              httpCookieEncoder.addCookie("my-cookie", "foo");
              httpCookieEncoder.addCookie("another-cookie", "bar");
              request.headers().set(HttpHeaders.Names.COOKIE, httpCookieEncoder.encode());
  
              // Send the HTTP request.
             channel.write(request);
 
             // Wait for the server to close the connection.
             channel.getCloseFuture().sync();
         } finally {
             // Shut down executor threads to exit.
             bootstrap.releaseExternalResources();
         }
     }
 }