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(INBhttp://wiki2.dovecot.org/Pigeonhole/Sieve/TroubleshootingOX):
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
