#!/bin/sh
#
# davmail:	davmail exchange gateway daemon
#
# chkconfig:	345 98 02
# description:	DavMail gateway for Microsoft Exchange
# processname:	davmail
# config:	/etc/davmail.properties

# LSB init-info
### BEGIN INIT INFO
# Provides:          davmail
# Required-Start:    $network
# Required-Stop:     $network
# Default-Start:     2 3 4 5
# Default-Stop:      0 1 6
# Short-Description: DavMail gateway for Microsoft Exchange
### END INIT INFO

# Source function library.
if [ -e /etc/init.d/functions ]; then
	. /etc/init.d/functions
fi

# LSB functions
. /lib/lsb/init-functions

# Check that networking is configured.
[ "${NETWORKING}" = "no" ] && exit 0

DAVMAIL_CONF=/etc/davmail.properties
test -f $DAVMAIL_CONF || exit 4
DAVMAIL_HOME=/var/lib/davmail
test -d $DAVMAIL_HOME || exit 5

LOGFILE=/var/log/davmail.log
PIDFILE=/var/run/davmail.pid
LOCKFILE=/var/lock/subsys/davmail

start() {
	echo -n $"Starting DavMail gateway: "
	dostatus > /dev/null 2>&1
	if [ $RETVAL -eq 0 ]
	then
		echo -n $"DavMail gateway already running"
		log_failure_msg
		RETVAL=1
		return
	fi
	runuser - davmail -s /bin/sh -c "exec nohup $DAVMAIL_HOME/davmail $DAVMAIL_CONF >> $LOGFILE 2>&1 &"
	RETVAL=$?
	if [ $RETVAL -eq 0 ]
	then
		sleep 1
		cat $DAVMAIL_HOME/pid > $PIDFILE
		touch $LOCKFILE
		log_success_msg
	else
		log_failure_msg
	fi
	return $RETVAL
}

stop() {
	echo -n $"Shutting down DavMail gateway: "
	kill $(cat $PIDFILE 2>/dev/null) > /dev/null 2>&1
	RETVAL=$?
	sleep 1
	if [ $RETVAL -eq 0 ]
	then
		rm -f $PIDFILE $LOCKFILE
		log_success_msg
	else
		log_failure_msg
	fi
	return $RETVAL
}

restart() {
	stop
	start
}

condrestart() {
	[ -f $LOCKFILE ] && restart || :
}

dostatus() {
	kill -0 $(cat $PIDFILE 2>/dev/null) > /dev/null 2>&1
	RETVAL=$?
	if [ $RETVAL -eq 0 ]
	then
		echo "DavMail gateway (pid $(cat $PIDFILE 2>/dev/null)) is running..."
	else
		if [ -f $PIDFILE ]
		then
			echo "DavMail gateway dead but pid file exists"
			RETVAL=1
			return
		fi
		if [ -f $LOCKFILE ]
		then
			echo "DavMail gateway dead but subsys locked"
			RETVAL=2
			return
		fi
		echo "DavMail gateway is stopped"
		RETVAL=3
	fi
}

# See how we were called.
case "$1" in
  start)
	start
	;;
  stop)
	stop
	;;
  status)
	dostatus
	;;
  restart|reload)
	restart
	;;
  condrestart)
	condrestart
	;;
  *)
	echo $"Usage: $0 {start|stop|status|restart|reload|condrestart}"
	exit 1
esac

exit $RETVAL
