#!/bin/sh
-# Copyright (C) 2008-2016 all contributors <meta@public-inbox.org>
+# Copyright (C) 2008-2020 all contributors <meta@public-inbox.org>
# License: GPL-3.0+ <http://www.gnu.org/licenses/gpl-3.0.txt>
# This is installed as /etc/dc-dcvr on my system
# to use with postfix main.cf: mailbox_command = /etc/dc-dlvr "$EXTENSION"
DELIVER=/usr/lib/dovecot/deliver
+CLAMDSCAN=clamdscan
# change if your spamc/spamd listens elsewhere
spamc='spamc'
esac
TMPMSG=$(mktemp -t dc-dlvr.orig.$USER.XXXXXX || exit 1)
-rm_list=$TMPMSG
+CDMSG=$(mktemp -t dc-dlvr.orig.$USER.XXXXXX || exit 1)
+rm_list="$TMPMSG $CDMSG"
+
+cat >$CDMSG
+$CLAMDSCAN --quiet - <$CDMSG
+if test $? -eq 1
+then
+ $DELIVER -m INBOX.spam <$CDMSG
+ exec rm -f $rm_list
+fi
# pre-filter, for infrequently read lists which do their own spam filtering:
if test -r ~/.dc-dlvr.pre
then
set -e
- cat > $TMPMSG
+ mv -f $CDMSG $TMPMSG
DEFAULT_INBOX=$(. ~/.dc-dlvr.pre)
case $DEFAULT_INBOX in
'') exec rm -f $rm_list ;;
INBOX) ;; # do nothing
*)
- $DELIVER -m $DEFAULT_INBOX < $TMPMSG
+ $DELIVER -m $DEFAULT_INBOX <$TMPMSG
exec rm -f $rm_list
;;
esac
rm_list="$rm_list $PREMSG"
set +e
mv -f $TMPMSG $PREMSG
- $spamc -E --headers < $PREMSG > $TMPMSG
+ $spamc -E --headers <$PREMSG >$TMPMSG
else
- $spamc -E --headers > $TMPMSG
+ $spamc -E --headers <$CDMSG >$TMPMSG
fi
err=$?
set -e
case $err in
-1) $DELIVER -m INBOX.spam < $TMPMSG ;;
+1) $DELIVER -m INBOX.spam <$TMPMSG ;;
*)
# users may override normal delivery and have it go elsewhere
if test -r ~/.dc-dlvr.rc
then
. ~/.dc-dlvr.rc
else
- $DELIVER -m INBOX < $TMPMSG
+ $DELIVER -m INBOX <$TMPMSG
fi
;;
esac