[Python-Dev] ssl module, non-blocking sockets and asyncore integration

[Giampaolo Rodola']

Hi,
I try to revamp a discussion I raised some time ago and which seems to
be not solved yet.
I'm interested in using the ssl module with asyncore but since there's
no real documentation about how using ssl module with non-blocking
sockets I've not been able to write something useful with it.
I took a look at Test/test_ssl.py which seems to include a test
consisting in an asyncore-based secure server but I noticed something
strange:

                def __init__(self, conn, certfile):
                    asyncore.dispatcher_with_send.__init__(self, conn)
                    self.socket = ssl.wrap_socket(conn,
server_side=True,
                                                  certfile=certfile,
 
do_handshake_on_connect=True)

I'm not sure about the real meaning of the do_handshake_on_connect
parameter but if it does what I think it should block the application
as long as the handshake isn't finished, which is not acceptable in an
asynchronous environment.
Am I misunderstanding something?
Does the ssl module can actually be used with non-blocking sockets? If
so which is the proper/recommended way to do that?


Thanks in advance


--- Giampaolo
http://code.google.com/p/pyftpdlib/