After failed attempts at trying to get my code to work with squid. I did some research into this and came up with some info.
http://www.python.org/peps/pep-0320.txt "- It would be nice if the built-in SSL socket type could be used for non-blocking SSL I/O. Currently packages such as Twisted which implement async servers using SSL have to require third-party packages such as pyopenssl. " My guess is that the squid proxy server uses non-blocking sockets which python ssl does not support. And, of course after looking at the squid site, I found this: "Unlike traditional caching software, Squid handles all requests in a single, non-blocking, I/O-driven process." Now, I haven't had time to verify this. But, it can explain why the non-ssl proxy authentication works and the ssl partially works. And, also why I get success with a different type of proxy server. For a clue as to why there is this problem I would also recommend looking at http://www.openssl.org/support/faq.html, specifically the section on non-blocking i/o. It looks like pyopenssl would be an option: http://pyopenssl.sourceforge.net/ It's docs comment that it was written because m2crypto error handeling was not finished for non-blocking i/o: http://pyopenssl.sourceforge.net/pyOpenSSL.txt The reason this module exists at all is that the SSL support in the socket module in the Python 2.1 distribution (which is what we used, of course I cannot speak for later versions) is severely limited. When asking about SSL on the comp.lang.python newsgroup (or on python-list@python.org) people usually pointed you to the M2Crypto package. The M2Crypto.SSL module does implement a lot of OpenSSL's functionality but unfortunately its error handling system does not seem to be finished, especially for non-blocking I/O. I think that much of the reason for this is that M2Crypto^1 is developed using SWIG^2. This makes it awkward to create functions that e.g. can return both an integer and NULL since (as far as I know) you basically write C functions and SWIG makes wrapper functions that parses the Python argument list and calls your C function, and finally transforms your return value to a Python object. john -- http://mail.python.org/mailman/listinfo/python-list
