A python proxy

proxy.py

import re
import socket 
import signal
import sys
import threading 

def sigint_received(signum, frame):
    sys.exit(0)
signal.signal(signal.SIGINT, sigint_received)

PORT = 8080
regexHost = re.compile(r'Host: ([^\s]*)', re.IGNORECASE) 
regexXFF = re.compile(r'X-Forwarded-For: ([^\s]*)', re.IGNORECASE) 
regexUri = re.compile(r'((?:GET|POST) [^\s]*)')

class ConnectionThread(threading.Thread): 
    def __init__(self, (conn,addr)): 
        self.conn = conn 
        self.addr = addr 
        threading.Thread.__init__(self) 
    
    def run(self): 
        data = self.conn.recv(1024*1024) 
        try:
            host = regexHost.search(data).groups()[0] 
            uri = regexUri.search(data).groups()[0] 
            xff = regexXFF.search(data).groups()[0] 
            print '%s, %s, %s' % (xff, host, uri)
        except:
            print 'None found, defaulting'
            host = 'DEFAULT'
        request = socket.socket(socket.AF_INET, socket.SOCK_STREAM) 
        #request.settimeout(6) 
        request.connect((host, 80)) 
        request.send(data) 

        while 1: 
            temp = request.recv(1024) 
            if not temp: break
            self.conn.send(temp) 
        self.conn.close() 

class ProxyThread(threading.Thread): 
    def __init__(self, port): 
        self.sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM) 
        self.sock.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
        self.sock.bind(('0.0.0.0', port)) 
        threading.Thread.__init__(self) 
    
    def run(self): 
        self.sock.listen(10) 
        while 1: 
            temp = ConnectionThread(self.sock.accept()) 
            temp.daemon = True 
            temp.start() 

if __name__ == "__main__": 
    proxy = ProxyThread(PORT) 
    proxy.daemon = True 
    proxy.start() 
    print "Started a proxy on port", PORT
    while 1:
        pass