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#!/usr/bin/env python
#
# This script demostrates how one can use pyOpenSSL to speak SSL over an HTTP
# proxy
# The challenge here is to start talking SSL over an already connected socket
#
# Author: Mihai Ibanescu <misa@redhat.com>
#
# $Id: proxy.py,v 1.2 2004/07/22 12:01:25 martin Exp $
import sys, socket, string
from OpenSSL import SSL
def usage(exit_code=0):
print "Usage: %s server[:port] proxy[:port]" % sys.argv[0]
print " Connects SSL to the specified server (port 443 by default)"
print " using the specified proxy (port 8080 by default)"
sys.exit(exit_code)
def main():
# Command-line processing
if len(sys.argv) != 3:
usage(-1)
server, proxy = sys.argv[1:3]
run(split_host(server, 443), split_host(proxy, 8080))
def split_host(hostname, default_port=80):
a = string.split(hostname, ':', 1)
if len(a) == 1:
a.append(default_port)
return a[0], int(a[1])
# Connects to the server, through the proxy
def run(server, proxy):
s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
try:
s.connect(proxy)
except socket.error, e:
print "Unable to connect to %s:%s %s" % (proxy[0], proxy[1], str(e))
sys.exit(-1)
# Use the CONNECT method to get a connection to the actual server
s.send("CONNECT %s:%s HTTP/1.0\n\n" % (server[0], server[1]))
print "Proxy response: %s" % string.strip(s.recv(1024))
ctx = SSL.Context(SSL.SSLv23_METHOD)
conn = SSL.Connection(ctx, s)
# Go to client mode
conn.set_connect_state()
# start using HTTP
conn.send("HEAD / HTTP/1.0\n\n")
print "Sever response:"
print "-" * 40
while 1:
try:
buff = conn.recv(4096)
except SSL.ZeroReturnError:
# we're done
break
print buff,
if __name__ == '__main__':
main()
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