#!/bin/sh

### BEGIN INIT INFO
# Provides:          Web Server
# Required-Start:    networking
# Required-Stop:     networking
# Default-Start:     2 3 4 5
# Default-Stop:      0 1 6
# Short-Description: Lighttpd Web Server
# Description:       Web service to serve static files and proxy
### END INIT INFO

PATH=/sbin:/bin:/usr/sbin:/usr/bin
DAEMON=/usr/sbin/lighttpd
NAME=lighttpd
DESC="Lighttpd Web Server"
OPTS="-f /etc/lighttpd/lighttpd.conf"
PIDFILE="/var/run/$NAME.pid"
PORT="80"

start()
{

    if lsof -t -i:${PORT} 1> /dev/null 2>&1; then
        kill $(lsof -t -i:${PORT}) > /dev/null 2>&1
    fi

    if [ -e $PIDFILE ]; then
        PIDDIR=/proc/$(cat $PIDFILE)
        if [ -d ${PIDDIR} ]; then
            echo "$DESC already running."
            return
        else
            echo "Removing stale PID file $PIDFILE"
            rm -f $PIDFILE
        fi
    fi

    echo -n "Checking scratch filesystem..."
    let -i COUNT=0
    while [ ! -e /scratch ]
    do
       if [ $COUNT -ge 15 ]
       then
           echo "failed to find /scratch."
           exit -1
       fi
       let COUNT=COUNT+1
       sleep 1
    done

    echo -n "Mounting scratch filesystem to chroot tmp..."
    umount /www/tmp >& /dev/null
    rm -r /scratch/lighttpd >& /dev/null
    mkdir -p /scratch/lighttpd
    mount --bind /scratch/lighttpd /www/tmp/
    chown www /www/tmp/

    echo -n "Starting $DESC..."

    start-stop-daemon --start --pidfile ${PIDFILE} -x "$DAEMON" -- $OPTS
    RETVAL=$?
    if [ $RETVAL -eq 0 ]; then
        echo "done."
    else
        echo "failed."
    fi
}

stop()
{
    if [ ! -e $PIDFILE ]; then return; fi

    echo -n "Stopping $DESC..."

    start-stop-daemon --stop --quiet --pidfile ${PIDFILE} -x "$DAEMON"
    RETVAL=$?
    if [ $RETVAL -eq 0 ]; then
        echo "done."
    else
        echo "failed."
    fi
    rm -f $PIDFILE
    echo -n "Unmounting scratch filesystem from chroot tmp..."
    umount /www/tmp
}

status()
{
    pid=`cat $PIDFILE 2>/dev/null`
    if [ -n "$pid" ]; then
        if ps -p $pid &>/dev/null ; then
            echo "$DESC is running"
            RETVAL=0
            return
        else
            RETVAL=1
        fi
    fi
    echo "$DESC is not running"
    RETVAL=3
}

case "$1" in
    start)
        start
        ;;
    stop)
        stop
        ;;
    restart|force-reload|reload)
        stop
        start
        ;;
    status)
	status
        ;;
    *)
        echo "Usage: $0 {start|stop|force-reload|restart|reload|status}"
        RETVAL=1
        ;;
esac

exit $RETVAL