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    1   /*
    2    *  Licensed to the Apache Software Foundation (ASF) under one
    3    *  or more contributor license agreements.  See the NOTICE file
    4    *  distributed with this work for additional information
    5    *  regarding copyright ownership.  The ASF licenses this file
    6    *  to you under the Apache License, Version 2.0 (the
    7    *  "License"); you may not use this file except in compliance
    8    *  with the License.  You may obtain a copy of the License at
    9    *
    10   *    http://www.apache.org/licenses/LICENSE-2.0
    11   *
    12   *  Unless required by applicable law or agreed to in writing,
    13   *  software distributed under the License is distributed on an
    14   *  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
    15   *  KIND, either express or implied.  See the License for the
    16   *  specific language governing permissions and limitations
    17   *  under the License.
    18   *
    19   */
    20  package org.apache.mina.example.proxy;
    21
    22  import java.net.InetSocketAddress;
    23
    24  import org.apache.mina.common.IoAcceptor;
    25  import org.apache.mina.common.IoConnector;
    26  import org.apache.mina.common.IoConnectorConfig;
    27  import org.apache.mina.transport.socket.nio.SocketAcceptor;
    28  import org.apache.mina.transport.socket.nio.SocketAcceptorConfig;
    29  import org.apache.mina.transport.socket.nio.SocketConnector;
    30
    31  /**
    32   * (<b>Entry point</b>) Demonstrates how to write a very simple tunneling proxy
    33   * using MINA. The proxy only logs all data passing through it. This is only
    34   * suitable for text based protocols since received data will be converted into
    35   * strings before being logged.
    36   * <p>
    37   * Start a proxy like this:<br/>
    38   * <code>org.apache.mina.example.proxy.Main 12345 www.google.com 80</code><br/>
    39   * and open <a href="http://localhost:12345">http://localhost:12345</a> in a
    40   * browser window.
    41   * </p>
    42   *
    43   * @author The Apache Directory Project (mina-dev@directory.apache.org)
    44   * @version $Rev$, $Date$
    45   */
    46  public class Main {
    47
    48      public static void main(String[] args) throws Exception {
    49          if (args.length != 3) {
    50              System.out.println(Main.class.getName()
    51                      + " <proxy-port> <server-hostname> <server-port>");
    52              return;
    53          }
    54
    55          // Create TCP/IP acceptor.
    56          IoAcceptor acceptor = new SocketAcceptor();
    57          ((SocketAcceptorConfig) acceptor.getDefaultConfig())
    58                  .setReuseAddress(true);
    59
    60          // Create TCP/IP connector.
    61          IoConnector connector = new SocketConnector();
    62
    63          // Set connect timeout.
    64          ((IoConnectorConfig) connector.getDefaultConfig())
    65                  .setConnectTimeout(30);
    66
    67          ClientToProxyIoHandler handler = new ClientToProxyIoHandler(
    68                  new ServerToProxyIoHandler(), connector, new InetSocketAddress(
    69                          args[1], Integer.parseInt(args[2])));
    70
    71          // Start proxy.
    72          acceptor
    73                  .bind(new InetSocketAddress(Integer.parseInt(args[0])), handler);
    74
    75          System.out.println("Listening on port " + Integer.parseInt(args[0]));
    76      }
    77
    78  }