#!/bin/sh
# Filter called by the Filter module on all incoming messages
# See /usr/share/doc/mailman-filter/README

t=`mktemp /tmp/mailman-filter_XXXXXXXX`

judge()
{
	CODE=$1
	TOMOD="$2"
	TOSENDER="$3"
	if [ -z "$TOSENDER" ] ; then
		TOSENDER="$TOMOD"
	fi
	echo -e "$TOMOD\n=====\n$TOSENDER\n====="
	rm -f $t
	exit $CODE
}

if ! spamc --headers >$t ; then
	judge 1 "Spam filter failed" "Message has been held for moderation because of spam filter failure."
fi

grep -q '^X-Spam-Level: \*\*\*\*\*\*' $t && judge 2 "Spam filter declared this message spam."
grep -q '^X-Spam-Level: \*\*' $t && judge 1 "Spam filter declared this message possible spam."
judge 0 ""