Twisted HTTP proxy

http_proxy.py

# Twisted HTTP proxy
# You would set REAL_IP to the IP of the server you want to proxy
# then override the domain name in your hosts file. Run this,
# and then it should proxy through.
# Copyright (c) 2013 darkf; licensed under CC-0 (or in the public domain if applicable)

from twisted.web import proxy, http
from twisted.internet import reactor
import urlparse
from urllib import quote as urlquote

REAL_IP = "actual ip here"

class LoggingProxyClient(proxy.ProxyClient):
    def connectionMade(self):
        proxy.ProxyClient.connectionMade(self)

    def connectionLost(self, reason):
        proxy.ProxyClient.connectionLost(self, reason)

    def handleHeader(self, key, value):
        proxy.ProxyClient.handleHeader(self, key, value)

    def handleResponsePart(self, buffer):
        proxy.ProxyClient.handleResponsePart(self, buffer)

    def finish(self):
        if not self._disconnected:
            return proxy.ProxyClient.finish(self)


class LoggingProxyClientFactory(proxy.ProxyClientFactory):
    protocol = LoggingProxyClient

class LoggingProxyRequest(proxy.ProxyRequest):
    protocols = {'http': LoggingProxyClientFactory}

     def process(self):
         self.uri = "http://%s%s" % (REAL_IP, self.uri)
         print self.method, self.path
         proxy.ProxyRequest.process(self)


class LoggingProxy(proxy.Proxy):
    requestFactory = LoggingProxyRequest


class ProxyFactory(http.HTTPFactory):
    protocol = LoggingProxy

if __name__ == '__main__':
    reactor.listenTCP(80, ProxyFactory(), interface="127.0.0.1")
    reactor.run()