proxyserver.py

#!env python
# Set these to control bind host and port for tcp server
BIND_HOST, BIND_PORT = "192.168.1.4", 9999

# Set these to control where you are connecting to
HOST, PORT = "localhost", 9999

from SocketServer import BaseRequestHandler, TCPServer
from socket import socket, AF_INET, SOCK_STREAM

class SockHandler(BaseRequestHandler):
    """
    Request Handler for the proxy server.

    Instantiated once time for each connection, and must
    override the handle() method for client communication.
    """

    def handle(self):
        # self.request is the TCP socket connected to the client
        self.data = self.request.recv(1024)
        print "Passing data from: {}".format(self.client_address[0])
        print self.data

        # Create a socket to the localhost server
        sock = socket(AF_INET, SOCK_STREAM)
        # Try to connect to the server and send data
        try:
            sock.connect((HOST, PORT))
            sock.sendall(self.data)
            # Receive data from the server
            while 1:
                received = sock.recv(1024)
                if not received: break
                # Send back received data
                self.request.sendall(received)
        finally:
            sock.close()

if __name__ == '__main__':
    # Create server and bind to set ip
    myserver = TCPServer((BIND_HOST, BIND_PORT), SockHandler)

    # activate the server until it is interrupted with ctrl+c
    myserver.serve_forever()