[ python-Bugs-1353269 ] poplib.POP3_SSL() class incompatible with socket.timeout

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Bugs item #1353269, was opened at 2005-11-10 17:34
Message generated for change (Comment added) made by arekm
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Category: Python Library
Group: Python 2.4
Status: Open
Resolution: None
Priority: 5
Submitted By: Charles (melicertes)
Assigned to: Nobody/Anonymous (nobody)
Summary: poplib.POP3_SSL() class incompatible with socket.timeout

Initial Comment:
If you call socket.setdefaulttimeout() to enable
timeout mode, then create a POP3-over-SSL connection by
instantiating a poplib.POP3_SSL() object, the resulting
connection can hang because the underlying socket.ssl()
object doesn't work when timeouts are enabled.

If, after creating the POP3_SSL object, you call
object.conn.sock.setblocking(1), the hangs will not happen.

This is exactly the same bug as happened with IMAP SSL
connections, as I reported in bug #977680.

The Python documentation still does not mention that
socket SSL support is not compatible with socket
timeout support.


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Comment By: Arkadiusz Miskiewicz (arekm)
Date: 2005-12-15 00:31

Message:
Logged In: YES 
user_id=139606

btw. please test this patch: https://sourceforge.net/tracker
/index.php?func=detail&aid=1380952&group_id=5470&atid=305470



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Comment By: Arkadiusz Miskiewicz (arekm)
Date: 2005-12-14 23:59

Message:
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user_id=139606

It's just broken in _ssl.c.

In PySSL_SSLread() there is:

sockstate = check_socket_and_wait_for_timeout(self->Socket, 
0);

It hangs here because that function waits for new data on 
the socket but SSL layer could already read that data.


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