NZBGet RC Script

#! /bin/sh
#
# nzbget: Stops/Starts/Restarts a global NZBGet Server
# chkconfig:   235 20 80
# Description: Starts the NZBGet Server
# Author: Chris Caron <lead2gold@gmail.com>
#
### BEGIN INIT INFO
# Provides: NZBGet Server
# Required-Start: $network
# Should-Start: NZBGet Server
# Required-Stop:
# Default-Start: 3 5
# Default-Stop: 0 1 2 6
# Short-Description: NZBGet Server
# Description: NZBFile to Usenet Data Miner
### END INIT INFO

[ $UID -eq 0 ] || exit 4

NZBGET_BIN="/usr/bin/nzbget"

# Source function library
if [ -f /etc/rc.status ]; then
   . /etc/rc.status
   rc_reset
elif [ -f /etc/rc.d/init.d/functions ]; then
   . /etc/rc.d/init.d/functions
fi

# Some Defaults
RUNUSR=${RUNUSR:=nzbget}
# Verify user exists (if it doesn't fall back to root user)
id $RUNUSR &>/dev/null
[ $? -ne 0 ] && RUNUSR=root
RUNGRP=${RUNGRP:=$RUNUSR}

# Source NZBGet Variables
[ -r /etc/sysconfig/nzbget ] && . /etc/sysconfig/nzbget

RETVAL=0
PROG="nzbget"

# Set lockfile differently if on SuSE
LOCKFILE="/var/lock/subsys/$PROG"
PIDFILE="/var/run/$PROG.pid"
LOGFILE="/var/log/$PROG.log"

if [ "$RUNUSR" != "root" ]; then
   PIDFILE="/var/run/$RUNUSR/$PROG.pid"
   LOGFILE="/var/log/$RUNUSR/$PROG.log"
fi

getpid()
{
   PID=0
   [ -f $PIDFILE ] && PID=$(<$PID)
   ps -ef $PID &>/dev/null
   if [ $? -eq 0 ]; then
      echo $PID
      return 0
   fi
   PID=$(pidof $NZBGET_BIN 2>/dev/null)
   if [ $? -eq 0 ]; then
      echo $PID
      return 0
   fi
   return 1
}

start()
{
   echo -n "Starting NZBGet: "
   PID=$(getpid)
   if [ $? -eq 0 ]; then
      echo -n "(PID=$PID)"
      success
      echo
   fi

   SU=""
   if [ "$RUNUSR" != "root" ]; then
      # handle non-root directories
      [ ! -d $(dirname $PIDFILE) ] && mkdir -p $(dirname $PIDFILE)
      [ ! -d $(dirname $LOGFILE) ] && mkdir -p $(dirname $LOGFILE)
      chown $RUNUSR.$RUNGRP $(dirname $PIDFILE) &>/dev/null
      chown $RUNUSR.$RUNGRP $(dirname $LOGFILE) &>/dev/null
      SU="su - $RUNUSR -c"
   fi
   $SU "$NZBGET_BIN -D -o 'LockFile=$PIDFILE' -o 'LogFile=$LOGFILE'"
   touch $LOCKFILE &>/dev/null
   success
}

stop()
{
   echo -n "Stoping NZBGet: "
   PID=$(getpid)
   if [ $? -ne 0 ]; then
      success
      echo
   fi

   kill $PID
   rm -f $PIDFILE
   rm -f $LOCKFILE
   success
   echo
   return 0
}

check_status ()
{
   echo -n "Checking NZBGet Server status: "
   status $NZBGET_BIN
   return $?
}

case "$1" in
   start)
      start
      ;;
   stop)
      stop
      ;;
   restart)
      stop
      sleep 1
      start
      ;;
   status)
      check_status
      ;;
   *)
      echo $"Usage: $0 {start|stop|restart|status}"
      RETVAL=2
      [ "$1" = 'usage' ] && RETVAL=0
esac

exit $RETVAL