TCP forwarder to Apache on localhost

forward_apache.py

import eventlet

def closed_callback():
    print "called back"

def forward(source, dest, cb = lambda: None):
    while True:
        d = source.recv(8096)
        if d == '':
            cb()
            break
        dest.sendall(d)

listener = eventlet.listen(('localhost', 7080))
while True:
    client, addr = listener.accept()
    server = eventlet.connect(('localhost', 80))
    eventlet.spawn_n(forward, client, server, closed_callback)
    eventlet.spawn_n(forward, server, client)