Hi List,
does the antispam plugin any way of actually seeing how it is calling
the pipe program and how it is failing? I can't reproduce the failure
when I call sa-learn manually. Can someone tell me, with which UID the
call happens, is it the UID the current dovecot process is running under
(which would be vmail, as it is a virtual user setup)
Cheers,
Johannes
Am 12.04.2016 um 23:09 schrieb Johannes Rohr:
Hi Tom,
Am 12.04.2016 um 22:26 schrieb Tom Hendrikx:
On 12-04-16 20:14, Johannes Rohr wrote:
Hi, my setup is a dovecot 2.0.19 IMAP server on Ubuntu Precise
with
the antispam plugin in version 2.0+20120225-2 and spamassassin at
version 3.2.2
I have been trying and failed to get the pipe backend of the antispam
plugin to work. Spamassin by itself works, a manual call of sa-learn
works fine. Bayes data is stored in a mysql DB.
I have the following configuration in
/etc/dovecot/conf.d/90-plugin.conf
plugin {
#setting_name = value
sieve=~/.dovecot.sieve
sieve_dir=~/sieve
antispam_pipe_program_spam_arg = --spam
antispam_pipe_program_notspam_arg = --ham
antispam_pipe_program = /usr/local/bin/sa-learn-pipe.sh
antispam_pipe_program_args = --username=%u # % expansion done by
dovecot
You need to specify the argument list as a list seperated by semicolons,
per example on the wiki:
antispam_pipe_program_args = --username;%u
Not sure about that, because sa-learn expects the parameter
--username=u...@na.me, this is one parameter, not two, and it works
for me locally, where I also set up dovecot to test. The main
differences are that the versions I have here are newer, I'm running
Debian sid, the server is on Ubuntu Precise, and second, the server is
handling virtual users, locally I have only real Unix users.
Also, dovecot doesn't complain about configuration errors regard
--username=%u. What other way would be there to get the parameter
passed to sa-learn the way I want?
btw, I tried this, just to be sure, but the result was the same.
The verbose debug should give you some logging to work with.
Yes, and I pasted the output. I can of course repeat:
Apr 12 22:53:02 vm10 imap: antispam: mailbox_is_unsure(Junk): 0
Apr 12 22:53:02 vm10 imap: antispam: mailbox_is_trash(INBOX): 0
Apr 12 22:53:02 vm10 imap: antispam: mailbox_is_trash(Junk): 0
Apr 12 22:53:02 vm10 imap: antispam: mail copy: from trash: 0, to
trash: 0
Apr 12 22:53:02 vm10 imap: antispam: mailbox_is_spam(INBOX): 0
Apr 12 22:53:02 vm10 imap: antispam: mailbox_is_spam(Junk): 1
Apr 12 22:53:02 vm10 imap: antispam: mailbox_is_unsure(INBOX): 0
Apr 12 22:53:02 vm10 imap: antispam: mail copy: src spam: 0, dst spam:
1, src unsure: 0
Apr 12 22:53:02 vm10 imap: antispam: running mailtrain backend program
/usr/bin/sa-learn
Apr 12 22:53:02 vm10 imap: antispam: running mailtrain backend program
/usr/bin/sa-learn
Apr 12 22:53:02 vm10 imap: antispam: running mailtrain backend program
parameter 1 --username=johan...@rohr.org
Apr 12 22:53:02 vm10 imap: antispam: running mailtrain backend program
parameter 2 --spam
Apr 12 22:53:03 vm10 imap: antispam: run program failed with exit code -1
Also, what
does the wrapper script log when dovecot runs it?
I have actually ditched the wrapper script because it works without
locally, I have configured the plugin to call sa-learn directly.
How does that differ
from a manual run?
sa-learn works just fine with a manual run. It seems as if the plugin
is passing the parameters wrongly, but the debugging output doesn't
reveal the actual command, so it's just guesswork.
Cheers,
Johannes
antispam_trash = trash;Trash;Deleted Items;Deleted Messages
antispam_spam = SPAM;Junk
antispam_backend = pipe
antispam_verbose_debug = 1
antispam_debug_target = syslog
antispam_pipe_tmpdir = /tmp
}
I have tried the following wrapper script:
#!/bin/bash
# set -x
LOGFILE=/tmp/sa-learn-pipe.log
echo "$$-start ($*)" >> $LOGFILE
#echo $* > /tmp/sendmail-parms.txt
cat<&0 >> /tmp/sendmail-msg-$$.txt
/usr/bin/sa-learn $* -D /tmp/sendmail-msg-$$.txt >> $LOGFILE 2>&1 && \
rm -f /tmp/sendmail-msg-$$.txt
echo "$$-end" >> $LOGFILE
exit 0
It somehow isn't working. I can call the wrapper script manually e.g.
sudo -u vmail /usr/local/bin/sa-learn-pipe.sh --username=s...@mail.user
--ham \
< someham
But it doesn't work from dovecot. It seems the script is called. but no
new patterns show up in the bayes DB. Unfortunately, the plugin
seems to
be documented poorly. How does it call the programme it pipes to? Is it
something like $programme --par1 --par2 < message ? Why can't /
shouldn't I call sa-learn directly? All the instructions I found on the
in internet contained a wrapper script, but none bothered to explain
why
you would actually need it.
I would be very grateful, if someone could enlighten me on that...
Cheers,
Johannes
