#!/bin/bash
# squid		This shell script takes care of starting and stopping
#		Squid Internet Object Cache
#
# chkconfig: - 90 25
# description: Squid - Internet Object Cache. Internet object caching is \
# 	a way to store requested Internet objects (i.e., data available \
# 	via the HTTP, FTP, and gopher protocols) on a system closer to the \
#	requesting site than to the source. Web browsers can then use the \
#	local Squid cache as a proxy HTTP server, reducing access time as \
#	well as bandwidth consumption.
# pidfile: /var/run/squid.pid
# config: /etc/squid/squid.conf

PATH=/usr/bin:/sbin:/bin:/usr/sbin
export PATH

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

# Source networking configuration.
. /etc/sysconfig/network

# Check that networking is up.
[ ${NETWORKING} = "no" ] && exit 0

# check if the squid conf file is present
[ -f /etc/squid/squid.conf ] || exit 0

# determine the name of the squid binary
[ -f /usr/sbin/squid ] && SQUID=squid
[ -z "$SQUID" ] && exit 0

# determine which one is the cache_swap directory
CACHE_SWAP=`sed -e 's/#.*//g' /etc/squid/squid.conf | \
	grep cache_dir | sed -e 's/cache_dir//' | \
	cut -d ' ' -f 2`
[ -z "$CACHE_SWAP" ] && CACHE_SWAP=/var/spool/squid

# default squid options
# -D disables initial dns checks. If you most likely will not to have an
#    internet connection when you start squid, uncomment this
SQUID_OPTS="-D"

RETVAL=0
case "$1" in
start)
    echo -n "Starting $SQUID: "
    for adir in $CACHE_SWAP; do
        if [ ! -d $adir/00 ]; then 
	     echo -n "init_cache_dir $adir... "
	     $SQUID -z -F 2>/dev/null
	fi
    done
    $SQUID $SQUID_OPTS &
    RETVAL=$?
    echo $SQUID
    [ $RETVAL -eq 0 ] && touch /var/lock/subsys/$SQUID
    ;;

stop)
    echo -n "Stopping $SQUID: "
    $SQUID -k shutdown &
    RETVAL=$?
    if [ $RETVAL -eq 0 ] ; then
    	rm -f /var/lock/subsys/$SQUID
 	while : ; do
		[ -f /var/run/squid.pid ] || break
		sleep 2 && echo -n "." 
    	done
    	echo "done"
    else
    	echo
    fi
    ;;

reload)
    $SQUID $SQUID_OPTS -k reconfigure 
    exit $?
    ;;

restart)
    $0 stop
    $0 start
    ;;

status)
    status $SQUID
    $SQUID -k check
    exit $?
    ;;

probe)
    exit 0;
    ;;

*)
    echo "Usage: $0 {start|stop|status|reload|restart}"
    exit 1
esac

exit $RETVAL