#!/bin/sh

DAEMON=xmail
DAEMON_LONG_NAME="XMail SMTP/POP3 server"
DAEMON_BIN=XMail
PID_FILE=/var/run/$DAEMON_BIN.pid
. /etc/init.d/modlibrc

CMDOPTS="-F- -MM -Ms /mod/etc/$DAEMON/"

cleanup() {
	rm -rf /mod/etc/$DAEMON
	rm -rf /var/run/$DAEMON
}

configure() {
	cleanup

	[ -r /etc/options.cfg ] && . /etc/options.cfg
	mkdir -p /mod/etc/$DAEMON

	if [ "$XMAIL_UNPRIV" = "yes" ]; then
		modlib_add_user_and_group $DAEMON

		#do a simple test if a linux filesystem is present
		touch $XMAIL_MAILLOCATION/.filesystemtest 2>/dev/null
		chown xmail:xmail $XMAIL_MAILLOCATION/.filesystemtest 2>/dev/null
		exitval=$?
		[ "$exitval" -eq 0 ] && fat=0 || fat=1
		rm $XMAIL_MAILLOCATION/.filesystemtest 2>/dev/null

		[ "$fat" = "0" ] && chmod 700 $XMAIL_MAILLOCATION || chmod 777 $XMAIL_MAILLOCATION
		chmod 700 /mod/etc/$DAEMON
		chown xmail:xmail /mod/etc/$DAEMON

		mkdir /var/run/$DAEMON
		chown xmail:xmail /var/run/$DAEMON
		ln -s xmail/XMail.pid /var/run/XMail.pid
	fi
	if [ ! -e "$XMAIL_MAILLOCATION/server.tab" ]; then
		echo -n 'initialzing mail location folder with default values ... '
		tar -C $XMAIL_MAILLOCATION -xf /etc/default.$DAEMON/default_config/default_config.tar
		echo 'done.'
	else
		for i in $(tar -tf /etc/default.$DAEMON/default_config/default_config.tar); do
			[ "${i:0:2}" == "./" ] && ii=${i:2}
			[ ! -z "$ii" ] && [ ! -e "$XMAIL_MAILLOCATION/$ii" ] && tar -C $XMAIL_MAILLOCATION \
				-xf /etc/default.$DAEMON/default_config/default_config.tar $i
		done
	fi
	[ -e "$XMAIL_MAILLOCATION/tmp" ] || mkdir $XMAIL_MAILLOCATION/tmp
	ln -s $XMAIL_MAILLOCATION/* /mod/etc/$DAEMON/
	ln -sf /usr/lib/MailRoot/bin /mod/etc/$DAEMON/
	if [ "$XMAIL_UNPRIV" = "yes" ]; then
		[ "$fat" = "0" ] && chown -hR xmail:xmail $XMAIL_MAILLOCATION || chmod -R 777 $XMAIL_MAILLOCATION
	fi

	[ ! -z "$XMAIL_SPECIAL" ] && CMDOPTS="$CMDOPTS $XMAIL_SPECIAL"
	if [ "$XMAIL_POP3" = "yes" ]; then
		[ -n "$XMAIL_POP3PORT" ] && CMDOPTS="$CMDOPTS -Pp $XMAIL_POP3PORT"
		[ "$XMAIL_POP3LOG" = "yes" ] && CMDOPTS="$CMDOPTS -Pl"
	else
		CMDOPTS="$CMDOPTS -P-"
	fi
	if [ "$XMAIL_POP3S" = "yes" -a "$FREETZ_PACKAGE_XMAIL_WITH_SSL" == "y" ]; then
		[ -n "$XMAIL_POP3SPORT" ] && CMDOPTS="$CMDOPTS -Bp $XMAIL_POP3SPORT"
	else
		CMDOPTS="$CMDOPTS -B-"
	fi
	if [ "$XMAIL_SMTP" = "yes" ]; then
		[ -n "$XMAIL_SMTPPORT" ] && CMDOPTS="$CMDOPTS -Sp $XMAIL_SMTPPORT"
		[ "$XMAIL_SMTPLOG" = "yes" ] && CMDOPTS="$CMDOPTS -Sl"
	else
		CMDOPTS="$CMDOPTS -S-"
	fi
	if [ "$XMAIL_SSMTP" = "yes" -a "$FREETZ_PACKAGE_XMAIL_WITH_SSL" == "y" ]; then
		[ -n "$XMAIL_SSMTPPORT" ] && CMDOPTS="$CMDOPTS -Xp $XMAIL_SSMTPPORT"
	else
		CMDOPTS="$CMDOPTS -X-"
	fi
	[ "$XMAIL_SYSTEMLOG" = "yes" ] && CMDOPTS="$CMDOPTS -Ql -Qg -Ll -Yl"
	if [ "$XMAIL_CTRL" = "yes" ]; then
		CMDOPTS="$CMDOPTS -CI 127.0.0.1"
		[ "$XMAIL_SYSTEMLOG" = "yes" ] && CMDOPTS="$CMDOPTS -Cl"
	else
		CMDOPTS="$CMDOPTS -C-"
	fi
	if [ "$XMAIL_CTRLS" = "yes" -a "$FREETZ_PACKAGE_XMAIL_WITH_SSL" == "y" ]; then
		[ "$XMAIL_SYSTEMLOG" = "yes" -a "$XMAIL_CTRL" = "no" ] && CMDOPTS="$CMDOPTS -Cl"
	else
		CMDOPTS="$CMDOPTS -W-"
	fi
}

start() {
	trap "rm -f /var/run/rc.$DAEMON.pid; exit 255" 0 1 2 3 15
	echo -n "Starting $DAEMON_LONG_NAME ... "
	if modlib_check_running; then
		echo "already running."
		exit 0
	fi

	if [ -z "$XMAIL_MAILLOCATION" ]; then
		echo "set up mail location ... failed."
		exit 1
	fi

	if [ ! -d "$XMAIL_MAILLOCATION" ]; then
		echo "directory $XMAIL_MAILLOCATION not available ... failed."
		exit 1
	fi

	configure

	compartment=""
	[ "$XMAIL_UNPRIV" = "yes" ] && compartment="/usr/lib/MailRoot/bin/compartment --user $DAEMON --group $DAEMON"
	$compartment /usr/lib/MailRoot/bin/$DAEMON_BIN $CMDOPTS
	exitval=$?

	if [ "$exitval" -eq 0 ]; then
		echo 'done.'
	else
		echo 'failed.'
		exit $exitval
	fi
}

trap "rm -f /var/run/rc.$DAEMON.pid; exit 255" 1 2 3 15
case $1 in
	""|load)
		modreg cgi 'xmail' 'XMail'
		modreg daemon $DAEMON

		if [ "$XMAIL_ENABLED" != "yes" ]; then
			echo "$DAEMON is disabled." 1>&2
			exit 1
		fi

		( start ) &
		echo $! > /var/run/rc.$DAEMON.pid
		;;
	unload)
		modunreg daemon $DAEMON
		modunreg cgi xmail
		[ -s /var/run/rc.$DAEMON.pid ] && PID_FILE=/var/run/rc.$DAEMON.pid
		modlib_stop && cleanup
		;;
	start)
		if [ -s /var/run/rc.$DAEMON.pid ]; then
			kill -0 $(cat /var/run/rc.$DAEMON.pid)
			if [ $? -eq 0 ]; then
				echo "Startup of $DAEMON already performed."
				exit 0
			fi
			rm -f /var/run/rc.$DAEMON.pid
		fi
		( start ) &
		echo $! > /var/run/rc.$DAEMON.pid
		;;
	stop)
		[ -s /var/run/rc.$DAEMON.pid ] && PID_FILE=/var/run/rc.$DAEMON.pid
		modlib_stop && cleanup
		;;
	restart)
		modlib_restart
		;;
	status)
		modlib_status
		;;
	*)
		echo "Usage: $0 [load|unload|start|stop|reload|restart|status]" 1>&2
		exit 1
		;;
esac

exit 0