[Twisted-Python] Passing information from SSL postconnection check to application

Henrik Thostrup Jensen thostrup at gmail.com
Tue Dec 5 07:19:42 EST 2006


I have an application which uses M2Crypto authentication. I use the
wrapper supplied by M2Crypto, and can do postConnection check just
fine. I need to pass along some of the information from the client
credentials, but I cannot figure out how to do this.

The code looks something like this:

from twisted.application import service, internet
from twisted.protocols import policies
from M2Crypto import SSL
from M2Crypto.SSL.TwistedProtocolWrapper import TLSProtocolWrapper

def protocol_factory(factory, wrapped_protocol):

        wrapper = TLSProtocolWrapper(factory,
        return wrapper

factory = ...

wrapper = policies.WrappingFactory(factory)
wrapper.protocol = protocol_factory
wrapper.protocol.TLS = True
factory.startTLS = True
factory.sslChecker = SSL.Checker.Checker()

factory = wrapper

application = service.Application('foo')
service = internet.TCPServer(8443, factory)

Currently the original factory is the factory from twisted.web2, but
I would like to be able to do this, on a general level, e.g., from AMP
as well. Setting the information into some global value is sure to fail,
but I cannot see how else to propagate information.

   - Henrik
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