#!/bin/sh

# ***** BEGIN LICENSE BLOCK *****
# Version: MPL 1.1/GPL 2.0/LGPL 2.1
#
# The contents of this file are subject to the Mozilla Public License Version
# 1.1 (the "License"); you may not use this file except in compliance with
# the License. You may obtain a copy of the License at
# http://www.mozilla.org/MPL/
#
# Software distributed under the License is distributed on an "AS IS" basis,
# WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
# for the specific language governing rights and limitations under the
# License.
#
# The Original Code is guacd.
#
# The Initial Developer of the Original Code is
# Michael Jumper.
# Portions created by the Initial Developer are Copyright (C) 2010
# the Initial Developer. All Rights Reserved.
#
# Contributor(s):
#
# Alternatively, the contents of this file may be used under the terms of
# either the GNU General Public License Version 2 or later (the "GPL"), or
# the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
# in which case the provisions of the GPL or the LGPL are applicable instead
# of those above. If you wish to allow use of your version of this file only
# under the terms of either the GPL or the LGPL, and not to allow others to
# use your version of this file under the terms of the MPL, indicate your
# decision by deleting the provisions above and replace them with the notice
# and other provisions required by the GPL or the LGPL. If you do not delete
# the provisions above, a recipient may use your version of this file under
# the terms of any one of the MPL, the GPL or the LGPL.
#
# ***** END LICENSE BLOCK *****

# guacd
#
# chkconfig:   2345 20 80
# description: Guacamole proxy daemon

### BEGIN INIT INFO
# Provides:          guacd
# Required-Start:    $network $syslog 
# Required-Stop:     $network $syslog
# Default-Start:     2 3 4 5
# Default-Stop:      0 1 6
# Short-Description: Guacamole proxy daemon
# Description: The Guacamole proxy daemon, required to translate remote desktop protocols into the text-based Guacamole protocol used by the JavaScript application.
### END INIT INFO

prog="guacd"
exec="@sbindir@/$prog"
pidfile="/var/run/$prog.pid"

# Returns PID of currently running process, if any
getpid() {

    if [ -f "$pidfile" ]
    then

        read PID < "$pidfile"

        # If pidfile contains PID and PID is valid
        if [ -n "$PID" ] && ps "$PID" > /dev/null 2>&1
        then
            echo "$PID"
            return 0
        fi

    fi

    # pidfile/pid not found, or process is dead
    return 1

}

start() {
    [ -x $exec ] || exit 5
    echo -n "Starting $prog: "

    getpid > /dev/null || $exec -p "$pidfile" 
    retval=$?

    case "$retval" in
        0)
            echo "SUCCESS"
            ;;
        *)
            echo "FAIL"
            ;;
    esac

    return $retval
}

stop() {
    echo -n "Stopping $prog: "
    
    PID=`getpid`
    retval=$?

    case "$retval" in
        0)
            if kill $PID > /dev/null 2>&1
            then
                echo "SUCCESS"
                return 0
            fi

            echo "FAIL"
            return 1
            ;;
        *)
            echo "SUCCESS (not running)"
            return 0
            ;;
    esac

}

restart() {
    stop && start
}

force_reload() {
    restart
}

status() {
    
    PID=`getpid`
    retval=$?

    case "$retval" in
        0)
            echo "$prog is running with PID=$PID."
            ;;
        *)
            echo "$prog is not running."
            ;;
    esac

    return $retval

}

case "$1" in
    start|stop|status|restart|force-reload)
        $1
        ;;
    try-restart)
        status && restart
        ;;
    *)
        echo "Usage: $0 {start|stop|status|restart|try-restart|force-reload}"
        exit 2
esac
exit $?