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1
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2 package com.trilead.ssh2.channel;
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3
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4 import java.io.IOException;
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5 import java.net.Socket;
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6
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7 import com.trilead.ssh2.log.Logger;
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8
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9
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10 /**
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11 * RemoteAcceptThread.
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12 *
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13 * @author Christian Plattner, plattner@trilead.com
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14 * @version $Id: RemoteAcceptThread.java,v 1.1 2007/10/15 12:49:56 cplattne Exp $
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15 */
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16 public class RemoteAcceptThread extends Thread {
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17 private static final Logger log = Logger.getLogger(RemoteAcceptThread.class);
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18
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19 Channel c;
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20
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21 String remoteConnectedAddress;
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22 int remoteConnectedPort;
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23 String remoteOriginatorAddress;
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24 int remoteOriginatorPort;
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25 String targetAddress;
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26 int targetPort;
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27
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28 Socket s;
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29
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30 public RemoteAcceptThread(Channel c, String remoteConnectedAddress, int remoteConnectedPort,
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31 String remoteOriginatorAddress, int remoteOriginatorPort, String targetAddress, int targetPort) {
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32 this.c = c;
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33 this.remoteConnectedAddress = remoteConnectedAddress;
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34 this.remoteConnectedPort = remoteConnectedPort;
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35 this.remoteOriginatorAddress = remoteOriginatorAddress;
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36 this.remoteOriginatorPort = remoteOriginatorPort;
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37 this.targetAddress = targetAddress;
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38 this.targetPort = targetPort;
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39
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40 if (log.isEnabled())
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41 log.log(20, "RemoteAcceptThread: " + remoteConnectedAddress + "/" + remoteConnectedPort + ", R: "
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42 + remoteOriginatorAddress + "/" + remoteOriginatorPort);
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43 }
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44
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45 public void run() {
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46 try {
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47 c.cm.sendOpenConfirmation(c);
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48 s = new Socket(targetAddress, targetPort);
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49 StreamForwarder r2l = new StreamForwarder(c, null, s, c.getStdoutStream(), s.getOutputStream(),
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50 "RemoteToLocal");
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51 StreamForwarder l2r = new StreamForwarder(c, null, null, s.getInputStream(), c.getStdinStream(),
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52 "LocalToRemote");
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53 /* No need to start two threads, one can be executed in the current thread */
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54 r2l.setDaemon(true);
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55 r2l.start();
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56 l2r.run();
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57
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58 while (r2l.isAlive()) {
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59 try {
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60 r2l.join();
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61 }
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62 catch (InterruptedException e) {
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63 }
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64 }
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65
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66 /* If the channel is already closed, then this is a no-op */
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67 c.cm.closeChannel(c, "EOF on both streams reached.", true);
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68 s.close();
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69 }
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70 catch (IOException e) {
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71 log.log(50, "IOException in proxy code: " + e.getMessage());
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72
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73 try {
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74 c.cm.closeChannel(c, "IOException in proxy code (" + e.getMessage() + ")", true);
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75 }
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76 catch (IOException e1) {
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77 }
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78
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79 try {
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80 if (s != null)
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81 s.close();
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82 }
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83 catch (IOException e1) {
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84 }
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85 }
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86 }
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87 }
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