Remove binary apk and use sieve_imap for antispam learning, fixes #33

dovecot/Dockerfile

@@ -2,17 +2,11 @@ FROM alpine:edge
 
 RUN echo "@testing http://nl.alpinelinux.org/alpine/edge/testing" >> /etc/apk/repositories \
  && apk add --update \
-     dovecot \
+     dovecot dovecot-sqlite dovecot-pigeonhole-plugin dovecot-pigeonhole-plugin-extdata \
-     dovecot-sqlite \
-     dovecot-pigeonhole-plugin \
-     dovecot-antispam-plugin@testing \
      rspamd-client@testing \
      bash \
  && rm -rf /var/cache/apk/*
 
-COPY dovecot-pigeonhole-plugin-extdata-39-r0.apk /
-RUN apk add --allow-untrusted --force dovecot-pigeonhole-plugin-extdata-39-r0.apk
-
 COPY conf /etc/dovecot
 COPY sieve /var/lib/dovecot
 

dovecot/conf/dovecot.conf

@@ -104,7 +104,7 @@ service auth-worker {
 ###############
 
 protocol imap {
-  mail_plugins = $mail_plugins imap_quota antispam
+  mail_plugins = $mail_plugins imap_quota imap_sieve
 }
 
 protocol pop3 {
@@ -155,13 +155,16 @@ service managesieve {
 
 plugin {
 	sieve = file:~/sieve;active=~/.dovecot.sieve
-  sieve_plugins = sieve_extdata
+  sieve_plugins = sieve_extdata sieve_imapsieve sieve_extprograms
-  sieve_global_extensions = +vnd.dovecot.extdata +spamtest +spamtestplus
+  sieve_global_extensions = +vnd.dovecot.extdata +spamtest +spamtestplus +vnd.dovecot.execute
 	sieve_before = /var/lib/dovecot/before.sieve
 	sieve_default = /var/lib/dovecot/default.sieve
 	sieve_after = /var/lib/dovecot/after.sieve
   sieve_extdata_dict_uri = proxy::sieve
 
+  # Sieve execute
+  sieve_execute_bin_dir = /var/lib/dovecot/bin
+
   # Send vacation replies even for aliases
   # See the Pigeonhole documentation about warnings: http://wiki2.dovecot.org/Pigeonhole/Sieve/Extensions/Vacation
   # It appears that our implemntation of mail delivery meets criteria of section 4.5
@@ -171,19 +174,20 @@ plugin {
   # Include the recipient in vacation replies so that DKIM applies
   sieve_vacation_send_from_recipient = yes
 
-  antispam_backend = mailtrain
-  antispam_spam = Junk
-  antispam_trash = Trash
-  antispam_mail_sendmail = /usr/bin/rspamc
-  antispam_mail_spam = learn_spam
-  antispam_mail_notspam = learn_ham
-  antispam_mail_sendmail_args = -h;antispam:11334;-P;q1
-
   # extract spam score from
   # X-Spam-Result: .... [<value> / <max_value] ...
   sieve_spamtest_status_type = score
   sieve_spamtest_status_header = X-Spamd-Result: .*\[(-?[[:digit:]]+\.[[:digit:]]+) .*\]
   sieve_spamtest_max_header = X-Spamd-Result: .*\[.* ([[:digit:]]+\.[[:digit:]]+)\]
+
+  # Learn from spam
+  imapsieve_mailbox1_name = Junk
+  imapsieve_mailbox1_causes = COPY
+  imapsieve_mailbox1_before = file:/var/lib/dovecot/report-spam.sieve
+  imapsieve_mailbox2_name = *
+  imapsieve_mailbox2_from = Junk
+  imapsieve_mailbox2_causes = COPY
+  imapsieve_mailbox2_before = file:/var/lib/dovecot/report-ham.sieve
 }
 
 ###############

dovecot/sieve/bin/mailtrain

@@ -0,0 +1,3 @@
+#!/bin/sh
+
+rspamc -h antispam:11334 -P mailu "learn_$1" /dev/stdin <&0

dovecot/sieve/report-ham.sieve

@@ -0,0 +1,3 @@
+require "vnd.dovecot.execute";
+
+execute :pipe mailtrain ham;

dovecot/sieve/report-spam.sieve

@@ -0,0 +1,3 @@
+require "vnd.dovecot.execute";
+
+execute :pipe "mailtrain" "spam";

rspamd/conf/worker-controller.conf

@@ -2,7 +2,7 @@ worker {
     bind_socket = "0.0.0.0:11334";
     type = "controller";
     count = 1;
-    password = "q1";
+    password = "mailu";
     secure_ip = "127.0.0.1";
     secure_ip = "::1";
     static_dir = "${WWWDIR}";