#!/sbin/runscript
# Tis init script takes care of starting the MTA processes for use 
# with MailScanner.

opts="${opts} status reload startin startout stopin stopout restartin restartout"

checkmta() {
	ebegin "checking MTA availability for MailScanner"
	if [ ${MTA} = 'sendmail' ]; then
		if [ -f ${SENDMAIL} ]; then
			eend 0
			return
		else
			echo "Cannot find sendmail, check /etc/conf.d/mailscanner-mta"
			eend 1
			exit
		fi
	elif [ ${MTA} = "postfix" ]; then
		if test -x ${POSTFIX} -a -f ${POSTFIXINCF}/main.cf \
		   -a -f ${POSTFIXOUTCF}/main.cf ; then
			eend 0
			return
		else
			echo "Cannot find postfix and/or postfix configuration files,"
			echo "Check /etc/conf.d/mailscanner-mta"
			eend 1
			exit
		fi
	elif [ ${MTA} = "exim" ]; then
		if test -x ${EXIM} -a -f ${EXIMINCF} -a -f ${EXIMSENDCF}; then
			eend 0
			return
		else
			echo "Cannot find exim and/or exim configuration files,"
			echo "Check /etc/conf.d/mailscanner-mta"
			eend 1
			exit
		fi
	else
		echo "Invalid MTA in /etc/conf.d/mailscanner-mta"
		eend 1
		exit
	fi
}
aliasesetc() {
	/usr/bin/newaliases > /dev/null 2>&1
	retval=$?
	if test -x /usr/bin/make -a -f /etc/mail/Makefile ; then
		make -C /etc/mail -s
		let retval+=$?
	else
		for i in virtusertable access domaintable mailertable ; do
			if [ -f /etc/mail/$i ] ; then
				makemap hash /etc/mail/$i < /etc/mail/$i
				let retval+=$?
			fi
		done
	fi
	return ${retval}
}

startinreal () {
	if [ ${MTA} = "sendmail" ]; then
		( cd /var/spool/mqueue.in; rm -f xf*)
		aliasesetc
		${SENDMAIL} -bd -OPrivacyOptions=noetrn \
						-ODeliveryMode=queueonly \
						-OQueueDirectory=${INQDIR} \
						-OPidFile=${INPID}
		retval=$?
		touch ${SMPID}
		chown ${MSPUSER}:${MSPGROUP} ${SMPID} 2> /dev/null
		${SENDMAIL} -L sm-msp-queue -Ac -q15m -OPidFile=${SMPID} 2> /dev/null
		let retval+=$?
		return ${retval}
	elif [ ${MTA} = "postfix" ]; then
		${POSTFIX} -c ${POSTFIXINCF} start 2> /dev/null
		return $?
	elif [ ${MTA} = "exim" ]; then
		${EXIM} -c ${EXIMINCF} start 2> /dev/null
		return $?
	fi
}

startoutreal() {
	if [ ${MTA} = "sendmail" ]; then
		${SENDMAIL} $([ -n "${QUEUETIME}" ] && echo -q${QUEUETIME}) \
				-OPidFile=${OUTPID}
		return $?
	elif [ ${MTA} = "postfix" ]; then
		${POSTFIX} -c ${POSTFIXOUTCF} start 2> /dev/null
		return $?
	elif [ ${MTA} = "exim" ]; then
		${EXIM} -c ${EXIMSENDCF} -q15m 2> /dev/null
		return $?
	fi
}

stopinreal() {
	if [ ${MTA} = "sendmail" ]; then
		kill ${KILL_OPTS} `head -1 ${INPID}` 2> /dev/null
		retval=$?
		kill ${KILL_OPTS} `head -1 ${SMPID}` 2> /dev/null
		let retval+=$?
		return ${retval}
	elif [ ${MTA} = "postfix" ]; then
		${POSTFIX} -c ${POSTFIXINCF} stop 2> /dev/null
		return $?
	fi
}

stopoutreal() {
	if [ ${MTA} = "sendmail" ]; then
		kill ${KILL_OPTS} `head -1 ${OUTPID}` 2> /dev/null
		return $?
	elif [ ${MTA} = "postfix" ]; then
		${POSTFIX} -c ${POSTFIXOUTCF} stop 2> /dev/null
		return $?
	fi
}




depend() {
	need net
	use logger dns
	provide mta
}

start() {
	checkmta
	ebegin "Starting incoming ${MTA}"
	startinreal
	retval=$?
	eend ${retval}
	if [ ${retval} -gt 0 ]; then
		exit
	fi
	ebegin "Starting outgoing ${MTA}"
	startoutreal
	retval=$?
	eend ${retval}
	if [ ${retval} -gt 0 ]; then
		echo "Will attempt to stop incoming ${MTA}"
		stopinreal
	fi
}

stop() {
	checkmta
	if [ ${MTA} = "exim" ]; then
		ebegin "Stopping exim"
		killall ${KILL_OPTS} exim
		eend $?
	else
		ebegin "Stopping incoming ${MTA}"
		stopinreal
		eend $?
		ebegin "Stopping outgoing ${MTA}"
		stopoutreal
		eend $?
	fi
}

startin() {
	checkmta
	ebegin "Starting incoming ${MTA}"
	startinreal
	eend $?
}

startout() {
	checkmta
	ebegin "Starting outgoing ${MTA}"
	startoutreal
	eend $?
}

stopin() {
	checkmta
	if [ ${MTA} = "exim" ]; then
		ebegin "Stopping incoming exim"
		echo "It is not possible to stop only the incoming exim.";
		echo "Please use the stop option, then use startin or startout to restart"
		echo "the incoming or outgoing process."
		eend 1
	else
		ebegin "Stopping incoming ${MTA}"
		stopinreal
		eend $?
	fi
}

stopout() {
	checkmta
	if [ ${MTA} = "exim" ]; then
		ebegin "Stopping outgoing exim"
		echo "It is not possible to stop only the outgoing exim.";
		echo "Please use the stop option, then use startin or startout to restart"
		echo "the incoming or outgoing process."
		eend 1
	else
		ebegin "Stopping outgoing ${MTA}"
		stopoutreal
		eend $?
	fi
}

restartin() {
	stopin
	startin
}

restartout() {
	stopout
	startout
}

status() {
	if [ ${MTA} = 'sendmail' ]; then
		ebegin "Incoming Sendmail status"
		pid=`head -1 ${INPID}`
		alive=`ps ax | awk '{ print $1 }' | grep '^'$pid'$'`
		if [ -z "${alive}" ]; then eend 1; else eend 0; fi
		ebegin "Client submission Sendmail status"
		pid=`head -1 ${SMPID}`
		alive=`ps ax | awk '{ print $1 }' | grep '^'$pid'$'`
		if [ -z "${alive}" ]; then eend 1; else eend 0; fi
		ebegin "Outgoing Sendmail status"
		pid=`head -1 ${OUTPID}`
		alive=`ps ax | awk '{ print $1 }' | grep '^'$pid'$'`
		if [ -z "${alive}" ]; then eend 1; else eend 0; fi
	elif [ ${MTA} = 'postfix' ]; then
		echo "Sorry: status is not supported for postfix"
	elif [ ${MTA} = 'exim' ]; then
		echo "Sorry: status is not supported for exim"
	else 
		echo "Invalid MTA in /etc/conf.d/mailscanner-mta"
		exit
	fi

}

reload() {
	if [ ${MTA} = 'sendmail' ]; then
		ebegin "Reloading Sendmail configuration"
		aliasesetc
		eend $?
	elif [ ${MTA} = 'postfix' ]; then
		ebegin "Reloading Incoming Postfix"
		${POSTFIX} -c ${POSTFIXINCF} reload > /dev/null
		eend $?
		ebegin "Reloading Outgoing Postfix"
		${POSTFIX} -c ${POSTFIXOUTCF} reload > /dev/null
		eend $?
	elif [ ${MTA} = 'exim' ]; then
		echo "Sorry: reload is not supported for exim"
	else 
		echo "Invalid MTA in /etc/conf.d/mailscanner-mta"
		exit
	fi
}