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84fcf53512
git-svn-id: http://svn.igniterealtime.org/svn/repos/smack/trunk@10852 b35dd754-fafc-0310-a699-88a17e54d16e
176 lines
6.1 KiB
Java
176 lines
6.1 KiB
Java
/**
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* $RCSfile: TcpUdpBridgeClient.java,v $
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* $Revision: 1.1 $
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* $Date: 2007/07/02 17:41:07 $
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*
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* Copyright (C) 2002-2006 Jive Software. All rights reserved.
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* ====================================================================
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* The Jive Software License (based on Apache Software License, Version 1.1)
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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*
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* 3. The end-user documentation included with the redistribution,
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* if any, must include the following acknowledgment:
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* "This product includes software developed by
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* Jive Software (http://www.jivesoftware.com)."
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* Alternately, this acknowledgment may appear in the software itself,
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* if and wherever such third-party acknowledgments normally appear.
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*
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* 4. The names "Smack" and "Jive Software" must not be used to
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* endorse or promote products derived from this software without
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* prior written permission. For written permission, please
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* contact webmaster@jivesoftware.com.
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*
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* 5. Products derived from this software may not be called "Smack",
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* nor may "Smack" appear in their name, without prior written
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* permission of Jive Software.
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*
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* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
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* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL JIVE SOFTWARE OR
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* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
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* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
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* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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* ====================================================================
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*/
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package org.jivesoftware.smackx.jingle.nat;
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import java.io.IOException;
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import java.io.InputStream;
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import java.io.OutputStream;
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import java.net.DatagramPacket;
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import java.net.DatagramSocket;
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import java.net.InetAddress;
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import java.net.Socket;
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import org.jivesoftware.smackx.jingle.SmackLogger;
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/**
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* A Simple and Experimental Bridge.
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* It Creates a TCP Socket That Connects to another TCP Socket Listener and forwards every packets received to an UDP Listener.
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* And forwards every packets received in UDP Socket, to the TCP Server
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*/
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public class TcpUdpBridgeClient {
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private static final SmackLogger LOGGER = SmackLogger.getLogger(TcpUdpBridgeClient.class);
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private String remoteTcpHost = null;
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private String remoteUdpHost = null;
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private int remoteTcpPort = -1;
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private int remoteUdpPort = -1;
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private int localUdpPort = -1;
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private DatagramSocket localUdpSocket;
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private Socket localTcpSocket;
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public TcpUdpBridgeClient(String remoteTcpHost, String remoteUdpHost, int remoteTcpPort, int remoteUdpPort) {
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this.remoteTcpHost = remoteTcpHost;
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this.remoteUdpHost = remoteUdpHost;
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this.remoteTcpPort = remoteTcpPort;
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this.remoteUdpPort = remoteUdpPort;
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try {
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localTcpSocket = new Socket(remoteTcpHost, remoteTcpPort);
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localUdpSocket = new DatagramSocket(0);
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localUdpPort = localUdpSocket.getLocalPort();
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LOGGER.debug("UDP: " + localUdpSocket.getLocalPort());
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}
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catch (IOException e) {
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e.printStackTrace();
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}
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startBridge();
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}
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public void startBridge() {
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final Thread process = new Thread(new Runnable() {
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public void run() {
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try {
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OutputStream out = localTcpSocket.getOutputStream();
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while (true) {
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byte b[] = new byte[500];
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DatagramPacket p = new DatagramPacket(b, 500);
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localUdpSocket.receive(p);
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if (p.getLength() == 0) continue;
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LOGGER.debug("UDP Client Received and Sending to TCP Server:"+new String(p.getData(),0,p.getLength(),"UTF-8"));
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out.write(p.getData(), 0, p.getLength());
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out.flush();
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LOGGER.debug("Client Flush");
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}
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}
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catch (IOException e) {
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e.printStackTrace();
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}
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}
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});
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new Thread(new Runnable() {
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public void run() {
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try {
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InputStream in = localTcpSocket.getInputStream();
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InetAddress remoteHost = InetAddress.getByName(remoteUdpHost);
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process.start();
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while (true) {
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byte b[] = new byte[500];
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int s = in.read(b);
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//if (s == -1) continue;
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LOGGER.debug("TCP Client:" +new String(b,0,s,"UTF-8"));
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DatagramPacket udpPacket = new DatagramPacket(b, s);
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udpPacket.setAddress(remoteHost);
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udpPacket.setPort(remoteUdpPort);
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localUdpSocket.send(udpPacket);
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}
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}
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catch (IOException e) {
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e.printStackTrace();
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}
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}
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}).start();
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}
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public Socket getLocalTcpSocket() {
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return localTcpSocket;
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}
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public DatagramSocket getLocalUdpSocket() {
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return localUdpSocket;
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}
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}
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