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 Precisewith 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=user@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=johannes@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 0It somehow isn't working. I can call the wrapper script manually e.g. sudo -u vmail /usr/local/bin/sa-learn-pipe.sh --username=some@mail.user --ham
< somehamBut 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