ServerConnectionFactory.py

# Copyright (c) 2004-2009 Moxie Marlinspike
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License as
# published by the Free Software Foundation; either version 3 of the
# License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful, but
# WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
# General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
# USA
#

import logging
from twisted.internet.protocol import ClientFactory


class ServerConnectionFactory(ClientFactory):
    def __init__(self, command, uri, postData, headers, client):
        self.command = command
        self.uri = uri
        self.postData = postData
        self.headers = headers
        self.client = client

    def buildProtocol(self, addr):
        return self.protocol(self.command, self.uri, self.postData, self.headers, self.client)

    def clientConnectionFailed(self, connector, reason):
        logging.debug("Server connection failed.")

        destination = connector.getDestination()

        if destination.port != 443:
            logging.debug("Retrying via SSL")
            self.client.proxyViaSSL(self.headers['host'], self.command, self.uri, self.postData, self.headers, 443)
        else:
            self.client.finish()