| /* |
| * Copyright (c) 2006-2011 Christian Plattner. All rights reserved. |
| * Please refer to the LICENSE.txt for licensing details. |
| */ |
| package ch.ethz.ssh2; |
| |
| import java.io.IOException; |
| import java.io.InputStream; |
| import java.io.OutputStream; |
| import java.net.InetAddress; |
| |
| import ch.ethz.ssh2.channel.Channel; |
| import ch.ethz.ssh2.channel.ChannelManager; |
| |
| /** |
| * A <code>LocalStreamForwarder</code> forwards an Input- and Outputstream |
| * pair via the secure tunnel to another host (which may or may not be identical |
| * to the remote SSH-2 server). |
| * |
| * @author Christian Plattner |
| * @version 2.50, 03/15/10 |
| */ |
| public class LocalStreamForwarder |
| { |
| private ChannelManager cm; |
| |
| private Channel cn; |
| |
| LocalStreamForwarder(ChannelManager cm, String host_to_connect, int port_to_connect) throws IOException |
| { |
| this.cm = cm; |
| cn = cm.openDirectTCPIPChannel(host_to_connect, port_to_connect, |
| InetAddress.getLocalHost().getHostAddress(), 0); |
| } |
| |
| /** |
| * @return An <code>InputStream</code> object. |
| * @throws IOException |
| */ |
| public InputStream getInputStream() throws IOException |
| { |
| return cn.getStdoutStream(); |
| } |
| |
| /** |
| * Get the OutputStream. Please be aware that the implementation MAY use an |
| * internal buffer. To make sure that the buffered data is sent over the |
| * tunnel, you have to call the <code>flush</code> method of the |
| * <code>OutputStream</code>. To signal EOF, please use the |
| * <code>close</code> method of the <code>OutputStream</code>. |
| * |
| * @return An <code>OutputStream</code> object. |
| * @throws IOException |
| */ |
| public OutputStream getOutputStream() throws IOException |
| { |
| return cn.getStdinStream(); |
| } |
| |
| /** |
| * Close the underlying SSH forwarding channel and free up resources. |
| * You can also use this method to force the shutdown of the underlying |
| * forwarding channel. Pending output (OutputStream not flushed) will NOT |
| * be sent. Pending input (InputStream) can still be read. If the shutdown |
| * operation is already in progress (initiated from either side), then this |
| * call is a no-op. |
| * |
| * @throws IOException |
| */ |
| public void close() throws IOException |
| { |
| cm.closeChannel(cn, "Closed due to user request.", true); |
| } |
| } |