[people/ms/dma.git] / dbounce-simple-safecat

#!/bin/sh
#
# Copyright (c) 2009, 2010  Peter Pentchev
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
# 1. Redistributions of source code must retain the above copyright
#    notice, this list of conditions and the following disclaimer.
# 2. Redistributions in binary form must reproduce the above copyright
#    notice, this list of conditions and the following disclaimer in the
#    documentation and/or other materials provided with the distribution.
#
# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
# ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
# SUCH DAMAGE.

set -e

usage()
{
	cat <<EOUSAGE
Usage:	dbounce-simple-safecat [-a addr] [-d dir] [-i queueid] [-t type] -f msg
	-a	the recipient of the bounced message
	-d	the bounce directory, default $DEFBOUNCEDIR
	-f	the full path to the bounced message to process
	-i	the ID of the bounce message in the local MTA's queue
	-t	the MTA type, currently ignored
EOUSAGE
}

DEFBOUNCEDIR='/var/spool/mail/dma-bounces'
BOUNCEDIR="$DEFBOUNCEDIR"

while getopts 'a:d:f:i:t:' o; do
	case "$o" in
		a)
			ADDR="$OPTARG"
			;;
		d)
			BOUNCEDIR="$OPTARG"
			;;
		f)
			FILENAME="$OPTARG"
			;;
		i)
			QUEUEID="$OPTARG"
			;;
		t)
			MTA="$OPTARG"
			;;
		*)
			usage 1>&2
			exit 1
	esac
done

if [ ! -r "$FILENAME" ]; then
	echo "Nonexistent or unreadable bounce file $FILENAME" 1>&2
	exit 1
fi

bname=`basename "$FILENAME"`
dname=`dirname "$FILENAME"`
if expr "$bname" : 'Q' > /dev/null; then
	qname="M${bname#Q}"
	qfile="$dname/$qname"
	if [ ! -r "$qfile" ]; then
		echo "Nonexistent or unreadable bounce queue file $qfile" 1>&2
		exit 1
	fi
else
	qfile=''
fi

F=`cat "$FILENAME" ${qfile:+"$qfile"} | safecat "$BOUNCEDIR/tmp" "$BOUNCEDIR/new"`
OUTFILE="$BOUNCEDIR/new/$F"
if [ ! -f "$OUTFILE" ]; then
	echo "safecat indicated success, but '$OUTFILE' does not exist" 1>&2
	exit 1
fi
echo "Successfully written the message to $OUTFILE"
Commit	Line	Data
3a343a9b PP	1	#!/bin/sh
3a343a9b PP	2	#
8fc96c1b	3	# Copyright (c) 2009, 2010 Peter Pentchev
3a343a9b PP	4	# All rights reserved.
	5	#
	6	# Redistribution and use in source and binary forms, with or without
	7	# modification, are permitted provided that the following conditions
	8	# are met:
	9	# 1. Redistributions of source code must retain the above copyright
	10	# notice, this list of conditions and the following disclaimer.
	11	# 2. Redistributions in binary form must reproduce the above copyright
	12	# notice, this list of conditions and the following disclaimer in the
	13	# documentation and/or other materials provided with the distribution.
	14	#
	15	# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
	16	# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
	17	# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
	18	# ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
	19	# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
	20	# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
	21	# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
	22	# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
	23	# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
	24	# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
	25	# SUCH DAMAGE.
	26
	27	set -e
	28
	29	usage()
	30	{
	31	cat <<EOUSAGE
	32	Usage: dbounce-simple-safecat [-a addr] [-d dir] [-i queueid] [-t type] -f msg
	33	-a the recipient of the bounced message
	34	-d the bounce directory, default $DEFBOUNCEDIR
	35	-f the full path to the bounced message to process
	36	-i the ID of the bounce message in the local MTA's queue
	37	-t the MTA type, currently ignored
	38	EOUSAGE
	39	}
	40
	41	DEFBOUNCEDIR='/var/spool/mail/dma-bounces'
	42	BOUNCEDIR="$DEFBOUNCEDIR"
	43
	44	while getopts 'a:d:f:i:t:' o; do
	45	case "$o" in
	46	a)
	47	ADDR="$OPTARG"
	48	;;
	49	d)
	50	BOUNCEDIR="$OPTARG"
	51	;;
	52	f)
	53	FILENAME="$OPTARG"
	54	;;
	55	i)
	56	QUEUEID="$OPTARG"
	57	;;
	58	t)
	59	MTA="$OPTARG"
	60	;;
	61	*)
	62	usage 1>&2
	63	exit 1
	64	esac
	65	done
	66
	67	if [ ! -r "$FILENAME" ]; then
68	echo "Nonexistent or unreadable bounce file $FILENAME" 1>&2
69	exit 1
70	fi
71
8fc96c1b PP	72	bname=`basename "$FILENAME"`
8fc96c1b PP	73	dname=`dirname "$FILENAME"`
3606980c PP	74	if expr "$bname" : 'Q' > /dev/null; then
3606980c PP	75	qname="M${bname#Q}"
8fc96c1b PP	76	qfile="$dname/$qname"
	77	if [ ! -r "$qfile" ]; then
	78	echo "Nonexistent or unreadable bounce queue file $qfile" 1>&2
	79	exit 1
	80	fi
	81	else
	82	qfile=''
	83	fi
	84
3606980c	85	F=`cat "$FILENAME" ${qfile:+"$qfile"} \| safecat "$BOUNCEDIR/tmp" "$BOUNCEDIR/new"`
3a343a9b PP	86	OUTFILE="$BOUNCEDIR/new/$F"
	87	if [ ! -f "$OUTFILE" ]; then
	88	echo "safecat indicated success, but '$OUTFILE' does not exist" 1>&2
	89	exit 1
	90	fi
	91	echo "Successfully written the message to $OUTFILE"