#!/bin/bash
#
# rtorrent      Startup script for rTorrent
#
# chkconfig: - 90 15
# description: rTorrent is the console torrent client
# config: /home/rtorrent/.rc.

# Source Red Hat function library.
. /etc/rc.d/init.d/functions

RETVAL=0
PATH=/usr/bin:/usr/local/bin:/usr/local/sbin:/sbin:/bin:/usr/sbin
NAME=rtorrent
USER="rtorrent"
CONFIG=("$(su -c 'echo $HOME' $USER)/.rtorrent.rc")
LOG_FILE=/var/log/$NAME.log
LOCK_FILE=/var/lock/subsys/$NAME

checkcnfg() {
  exists=0
  for i in `echo "$PATH" | tr ':' '\n'` ; do
    if [ -f $i/$NAME ] ; then
      exists=1
      break
    fi
  done
  if [ $exists -eq 0 ] ; then
    echo "cannot find $NAME binary in PATH: $PATH" | tee -a "$LOG_FILE" >&2
    exit 3
  fi
  for (( i=0 ; i < ${#CONFIG[@]} ;  i++ )) ; do
    if ! [ -r "${CONFIG[i]}" ] ; then
        echo "cannot find readable config ${CONFIG[i]}. check that it is there and permissions are appropriate"  | tee -a "$LOG_FILE" >&2
        exit 3
    fi
    session=$(getsession "${CONFIG[i]}")
    if ! [ -d "${session}" ] ; then
        echo "cannot find readable session directory ${session} from config ${CONFIG[i]}. check permissions" | tee -a "$LOG_FILE" >&2
        exit 3
    fi
  done
}

checkscreen () {
  if [ ! -f /usr/bin/screen ] ; then
	echo "\"screen\" program is not installed! Please install it. You can do it if run \"\# yum install screen\""
	exit 3
  fi
}
  

start() {
        echo -n $"Starting $NAME: "
	checkcnfg || checkscreen || exit 1
	daemon "su $NAME -c 'screen -d -m rtorrent'"
	RETVAL=$?
	echo
	[ $RETVAL -eq 0 ] && touch $LOCK_FILE
	return $RETVAL
}

stop() {
	echo -n $"Stopping $NAME: "
	killproc rtorrent
	su $NAME -c 'screen -wipe' >/dev/null 2>&1
	RETVAL=$?
	echo
	[ $RETVAL -eq 0 ] && rm -f $LOCK_FILE
}

getsession() {
    session=$(cat "$1" | grep "^[[:space:]]*session[[:space:]]*=" | sed "s/^[[:space:]]*session[[:space:]]*=[[:space:]]*//" )
    #session=${session/#~/`getent passwd ${user}|cut -d: -f6`}
    echo $session
}

case "$1" in
  start)
	start
	;;
  stop)
	stop
	;;
  restart)
	stop
	start
	;;
  *)
	echo $"Usage: $NAME {start|stop|restart}" >&2
        exit 1
esac

exit $RETVAL