#!/bin/bash
#
# $Id: init 86 2009-05-02 19:02:20Z lxp $
#
# This file is part of OpenClone.
#
# Copyright (C) 2009  David Gnedt
#
# OpenClone is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# OpenClone is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with OpenClone.  If not, see <http://www.gnu.org/licenses/>.
#
### BEGIN INIT INFO
# Provides:          openclone-webservice
# Required-Start:    $local_fs $remote_fs $network
# Required-Stop:     $local_fs $remote_fs $network
# Default-Start:     2 3 4 5
# Default-Stop:      0 1 6
# Short-Description: Start and stop the OpenClone Webservice
# Description:       Controls the OpenClone Webservice "openclone-webservice"
### END INIT INFO

PATH=/sbin:/usr/sbin:/bin:/usr/bin
DESC="OpenClone Webservice"
NAME=openclone-webservice
DAEMON=/usr/bin/openclone-webservice
DAEMON_ARGS=""
DAEMON_USER="openclone-websrv"
PIDFILE=/var/run/openclone/webservice.pid
SCRIPTNAME=/etc/init.d/openclone-webservice

# Exit if the package is not installed
[ -x "$DAEMON" ] || exit 0

# Define LSB log_* functions.
# Depend on lsb-base (>= 3.0-6) to ensure that this file is present.
. /lib/lsb/init-functions

#
# Function that starts the daemon/service
#
do_start()
{
	# Return
	#   0 if daemon has been started
	#   1 if daemon was already running
	#   2 if daemon could not be started
	if [ ! -d /var/run/openclone ]; then
		mkdir -p /var/run/openclone
		chgrp openclone /var/run/openclone
		chmod g+w /var/run/openclone
	fi
	start-stop-daemon --start --quiet --chuid $DAEMON_USER \
		--pidfile $PIDFILE --exec $DAEMON --test \
		> /dev/null || return 1
	start-stop-daemon --start --quiet --chuid $DAEMON_USER \
		--pidfile $PIDFILE --exec $DAEMON -- $DAEMON_ARGS \
		|| return 2
}

#
# Function that stops the daemon/service
#
do_stop()
{
	# Return
	#   0 if daemon has been stopped
	#   1 if daemon was already stopped
	#   2 if daemon could not be stopped
	#   other if a failure occurred
	start-stop-daemon --stop --quiet --retry=TERM/30/KILL/5 \
		--pidfile $PIDFILE --name ${NAME:0:15}
	return "$?"
}

case "$1" in
  start)
	log_daemon_msg "Starting $DESC" "$NAME"
	do_start
	case "$?" in
		0|1) log_end_msg 0 ;;
		2) log_end_msg 1 ;;
	esac
	;;
  stop)
	log_daemon_msg "Stopping $DESC" "$NAME"
	do_stop
	case "$?" in
		0|1) log_end_msg 0 ;;
		2) log_end_msg 1 ;;
	esac
	;;
  restart|force-reload)
	#
	# If the "reload" option is implemented then remove the
	# 'force-reload' alias
	#
	log_daemon_msg "Restarting $DESC" "$NAME"
	do_stop
	case "$?" in
	  0|1)
		do_start
		case "$?" in
			0) log_end_msg 0 ;;
			1) log_end_msg 1 ;; # Old process is still running
			*) log_end_msg 1 ;; # Failed to start
		esac
		;;
	  *)
	  	# Failed to stop
		log_end_msg 1
		;;
	esac
	;;
  *)
	echo "Usage: $SCRIPTNAME {start|stop|restart|force-reload}" >&2
	exit 3
	;;
esac
