37 lines
1.1 KiB
Python
37 lines
1.1 KiB
Python
"""Port forwarder
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USAGE: twisted_portforward.py local_port remote_host remote_port"""
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import sys
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from twisted.internet import reactor
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from eventlet.twistedutil import join_reactor
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from eventlet.twistedutil.protocol import GreenClientCreator, SpawnFactory, UnbufferedTransport
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from eventlet import proc
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def forward(source, dest):
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try:
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while True:
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x = source.recv()
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if not x:
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break
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print 'forwarding %s bytes' % len(x)
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dest.write(x)
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finally:
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dest.loseConnection()
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def handler(local):
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client = str(local.getHost())
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print 'accepted connection from %s' % client
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remote = GreenClientCreator(reactor, UnbufferedTransport).connectTCP(remote_host, remote_port)
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a = proc.spawn(forward, remote, local)
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b = proc.spawn(forward, local, remote)
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proc.waitall([a, b], trap_errors=True)
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print 'closed connection to %s' % client
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try:
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local_port, remote_host, remote_port = sys.argv[1:]
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except ValueError:
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sys.exit(__doc__)
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local_port = int(local_port)
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remote_port = int(remote_port)
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reactor.listenTCP(local_port, SpawnFactory(handler))
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reactor.run()
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