[spambayes-bugs] [ spambayes-Bugs-1653494 ] IMAP/RECENT problems

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Fri Dec 21 08:42:28 CET 2007


Bugs item #1653494, was opened at 2007-02-06 13:04
Message generated for change (Comment added) made by david_abrahams
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Category: imapfilter
Group: 1.1.x
Status: Open
Resolution: None
Priority: 5
Private: No
Submitted By: David Abrahams (david_abrahams)
Assigned to: Tony Meyer (anadelonbrin)
Summary: IMAP/RECENT problems

Initial Comment:
I've now seen this problem with two different IMAP servers (Communigate and Cyrus) when trying to classify email.

*Traceback (most recent call last):
  File "/usr/local/bin/sb_imapfilter.py", line 1289, in ?
    run()
  File "/usr/local/bin/sb_imapfilter.py", line 1271, in run
    imap_filter.Filter()
  File "/usr/local/bin/sb_imapfilter.py", line 1072, in Filter
    self.unsure_folder, self.ham_folder)
  File "/usr/local/bin/sb_imapfilter.py", line 975, in Filter
    msg.Save()
  File "/usr/local/bin/sb_imapfilter.py", line 728, in Save
    raise BadIMAPResponseError("recent", "Cannot find saved message")
__main__.BadIMAPResponseError: The command 'recent' failed to give an OK response.
Cannot find saved message

I wonder if relying on the RECENT command is really such a good idea, as IIUC it's subject to all kinds of race conditions.

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>Comment By: David Abrahams (david_abrahams)
Date: 2007-12-21 02:42

Message:
Logged In: YES 
user_id=52572
Originator: YES

New data: I found a reproducible case of this problem (on dovecot this
time).  After much analysis, I can say this much: 

1. There's no RECENT command; this is an "idle loop" of NOOP commands that
times out looking for some evidence that a message move has been completed
by the server.

2. It occurs for me when a previously-unclassified message that didn't
have a Message-Id header is first given an id with self._generate_id() and
self.Save()d, then subsequently self.MoveTo()d a new folder and
self.Save()d again.

3. If I comment out the first save on line 882 of sb_imapfilter.py, I
don't see the problem, though I don't know if that's a proper fix

4. I have attached a patch that adds much more useful "verbose" info to
sb_imapfilter.py, at least where debugging this problem is concerned.  It
also fixes a bug wherein classification would never move messages into a
ham folder, even if one was specified.

5. Matt Stegman had some more data that might be useful in
http://mail.python.org/pipermail/spambayes/2006-August/019611.html


it occurs (at least)
File Added: sb_imapfilter.py.patch

----------------------------------------------------------------------

Comment By: nicomatsu (nicomatsu)
Date: 2007-02-20 13:36

Message:
Logged In: YES 
user_id=1724434
Originator: NO

I'm using Dovecot Mailserver and I have the same issue. I'm using
spambayes-1.1a3.

Traceback (most recent call last):
  File "/usr/bin/sb_imapfilter.py", line 1284, in ?
    run()
  File "/usr/bin/sb_imapfilter.py", line 1266, in run
    imap_filter.Filter()
  File "/usr/bin/sb_imapfilter.py", line 1067, in Filter
    self.unsure_folder, self.ham_folder)
  File "/usr/bin/sb_imapfilter.py", line 970, in Filter
    msg.Save()
  File "/usr/bin/sb_imapfilter.py", line 723, in Save
    raise BadIMAPResponseError("recent", "Cannot find saved message")
__main__.BadIMAPResponseError: The command 'recent' failed to give an OK
response.
Cannot find saved message

----------------------------------------------------------------------

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