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Name	Size	Permission
__pycache__	[ DIR ]	drwxr-xr-x
haproxy	[ DIR ]	drwxr-xr-x
test	[ DIR ]	drwxr-xr-x
__init__.py	397 B	-rw-r--r--
amp.py	94.23 KB	-rw-r--r--
basic.py	30.9 KB	-rw-r--r--
dict.py	10.64 KB	-rw-r--r--
finger.py	1.19 KB	-rw-r--r--
ftp.py	101.97 KB	-rw-r--r--
htb.py	9.2 KB	-rw-r--r--
ident.py	7.75 KB	-rw-r--r--
loopback.py	11.65 KB	-rw-r--r--
memcache.py	23.1 KB	-rw-r--r--
pcp.py	7.02 KB	-rw-r--r--
policies.py	20.87 KB	-rw-r--r--
portforward.py	2.32 KB	-rw-r--r--
postfix.py	3.55 KB	-rw-r--r--
shoutcast.py	3.48 KB	-rw-r--r--
sip.py	37.07 KB	-rw-r--r--
socks.py	7.74 KB	-rw-r--r--
stateful.py	1.64 KB	-rw-r--r--
tls.py	31.74 KB	-rw-r--r--
wire.py	2.44 KB	-rw-r--r--

Code Editor : portforward.py

# Copyright (c) Twisted Matrix Laboratories.
# See LICENSE for details.

"""
A simple port forwarder.
"""

# Twisted imports
from twisted.internet import protocol
from twisted.python import log

class Proxy(protocol.Protocol):
    noisy = True

peer = None

def setPeer(self, peer):
        self.peer = peer

def connectionLost(self, reason):
        if self.peer is not None:
            self.peer.transport.loseConnection()
            self.peer = None
        elif self.noisy:
            log.msg(f"Unable to connect to peer: {reason}")

def dataReceived(self, data):
        self.peer.transport.write(data)

class ProxyClient(Proxy):
    def connectionMade(self):
        self.peer.setPeer(self)

# Wire this and the peer transport together to enable
        # flow control (this stops connections from filling
        # this proxy memory when one side produces data at a
        # higher rate than the other can consume).
        self.transport.registerProducer(self.peer.transport, True)
        self.peer.transport.registerProducer(self.transport, True)

# We're connected, everybody can read to their hearts content.
        self.peer.transport.resumeProducing()

class ProxyClientFactory(protocol.ClientFactory):

protocol = ProxyClient

def setServer(self, server):
        self.server = server

def buildProtocol(self, *args, **kw):
        prot = protocol.ClientFactory.buildProtocol(self, *args, **kw)
        prot.setPeer(self.server)
        return prot

def clientConnectionFailed(self, connector, reason):
        self.server.transport.loseConnection()

class ProxyServer(Proxy):

clientProtocolFactory = ProxyClientFactory
    reactor = None

def connectionMade(self):
        # Don't read anything from the connecting client until we have
        # somewhere to send it to.
        self.transport.pauseProducing()

client = self.clientProtocolFactory()
        client.setServer(self)

if self.reactor is None:
            from twisted.internet import reactor

self.reactor = reactor
        self.reactor.connectTCP(self.factory.host, self.factory.port, client)

class ProxyFactory(protocol.Factory):
    """
    Factory for port forwarder.
    """

protocol = ProxyServer

def __init__(self, host, port):
        self.host = host
        self.port = port

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Code Editor : portforward.py