@Override
public Result process(
ConnectionService connectionService, String request, boolean wantReply, Buffer buffer)
throws Exception {
if (!REQUEST.equals(request)) {
return super.process(connectionService, request, wantReply, buffer);
}
String address = buffer.getString();
int port = buffer.getInt();
SshdSocketAddress socketAddress = new SshdSocketAddress(address, port);
TcpipForwarder forwarder =
Objects.requireNonNull(connectionService.getTcpipForwarder(), "No TCP/IP forwarder");
SshdSocketAddress bound = forwarder.localPortForwardingRequested(socketAddress);
if (log.isDebugEnabled()) {
log.debug(
"process({})[{}][want-reply-{}] {} => {}",
connectionService,
request,
wantReply,
socketAddress,
bound);
}
if (bound == null) {
return Result.ReplyFailure;
}
port = bound.getPort();
if (wantReply) {
Session session = connectionService.getSession();
buffer = session.createBuffer(SshConstants.SSH_MSG_REQUEST_SUCCESS, Integer.BYTES);
buffer.putInt(port);
session.writePacket(buffer);
}
return Result.Replied;
}
@Override
public synchronized void stopRemotePortForwarding(SshdSocketAddress remote) throws IOException {
SshdSocketAddress bound;
synchronized (remoteToLocal) {
bound = remoteToLocal.remove(remote.getPort());
}
if (bound != null) {
if (log.isDebugEnabled()) {
log.debug("stopRemotePortForwarding(" + remote + ") cancel forwarding to " + bound);
}
Buffer buffer = session.createBuffer(SshConstants.SSH_MSG_GLOBAL_REQUEST);
buffer.putString("cancel-tcpip-forward");
buffer.putBoolean(false);
buffer.putString(remote.getHostName());
buffer.putInt(remote.getPort());
session.writePacket(buffer);
} else {
if (log.isDebugEnabled()) {
log.debug("stopRemotePortForwarding(" + remote + ") no binding found");
}
}
}
