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Diffstat (limited to 'src/console/zmq/ssh/forward.py')
-rwxr-xr-x | src/console/zmq/ssh/forward.py | 91 |
1 files changed, 0 insertions, 91 deletions
diff --git a/src/console/zmq/ssh/forward.py b/src/console/zmq/ssh/forward.py deleted file mode 100755 index 2d619462..00000000 --- a/src/console/zmq/ssh/forward.py +++ /dev/null @@ -1,91 +0,0 @@ -# -# This file is adapted from a paramiko demo, and thus licensed under LGPL 2.1. -# Original Copyright (C) 2003-2007 Robey Pointer <robeypointer@gmail.com> -# Edits Copyright (C) 2010 The IPython Team -# -# Paramiko is free software; you can redistribute it and/or modify it under the -# terms of the GNU Lesser General Public License as published by the Free -# Software Foundation; either version 2.1 of the License, or (at your option) -# any later version. -# -# Paramiko is distrubuted in the hope that it will be useful, but WITHOUT ANY -# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR -# A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more -# details. -# -# You should have received a copy of the GNU Lesser General Public License -# along with Paramiko; if not, write to the Free Software Foundation, Inc., -# 51 Franklin Street, Fifth Floor, Boston, MA 02111-1301 USA. - -""" -Sample script showing how to do local port forwarding over paramiko. - -This script connects to the requested SSH server and sets up local port -forwarding (the openssh -L option) from a local port through a tunneled -connection to a destination reachable from the SSH server machine. -""" - -from __future__ import print_function - -import logging -import select -try: # Python 3 - import socketserver -except ImportError: # Python 2 - import SocketServer as socketserver - -logger = logging.getLogger('ssh') - -class ForwardServer (socketserver.ThreadingTCPServer): - daemon_threads = True - allow_reuse_address = True - - -class Handler (socketserver.BaseRequestHandler): - - def handle(self): - try: - chan = self.ssh_transport.open_channel('direct-tcpip', - (self.chain_host, self.chain_port), - self.request.getpeername()) - except Exception as e: - logger.debug('Incoming request to %s:%d failed: %s' % (self.chain_host, - self.chain_port, - repr(e))) - return - if chan is None: - logger.debug('Incoming request to %s:%d was rejected by the SSH server.' % - (self.chain_host, self.chain_port)) - return - - logger.debug('Connected! Tunnel open %r -> %r -> %r' % (self.request.getpeername(), - chan.getpeername(), (self.chain_host, self.chain_port))) - while True: - r, w, x = select.select([self.request, chan], [], []) - if self.request in r: - data = self.request.recv(1024) - if len(data) == 0: - break - chan.send(data) - if chan in r: - data = chan.recv(1024) - if len(data) == 0: - break - self.request.send(data) - chan.close() - self.request.close() - logger.debug('Tunnel closed ') - - -def forward_tunnel(local_port, remote_host, remote_port, transport): - # this is a little convoluted, but lets me configure things for the Handler - # object. (SocketServer doesn't give Handlers any way to access the outer - # server normally.) - class SubHander (Handler): - chain_host = remote_host - chain_port = remote_port - ssh_transport = transport - ForwardServer(('127.0.0.1', local_port), SubHander).serve_forever() - - -__all__ = ['forward_tunnel'] |