#!/bin/bash
# Turn squid caching on/off

SQUID_CACHEDIR="/library/cache"
SQUID_USER="squid:squid"

if [[ $1 == "enable" ]]; then
	# Make sure that the cache directory is present.
	# Squid crashes if it isn't (although it will create all subdirs...)
	if [ ! -d $SQUID_CACHEDIR ]; then
	    mkdir $SQUID_CACHEDIR
    	chown $SQUID_USER $SQUID_CACHEDIR
	    /usr/sbin/squid -f /etc/squid/squid-iiab.conf -z
	fi

	#  Turn squid on after the next reboot
	/sbin/chkconfig --levels 345 squid on
	#  Turn squid on now
	/sbin/service squid start

	# Now, copy in a set of iptables that redirects forwarded traffic
	# to port 80 to port 3128 on this machine
	touch /etc/sysconfig/xs_httpcache_on
	/sbin/service iptables restart
elif [[ $1 == "disable" ]]; then
	# First, restore a normal set of iptables
	if [ -e /etc/sysconfig/xs_httpcache_on ];then
    	rm /etc/sysconfig/xs_httpcache_on
	fi
	/sbin/service iptables restart

	# Turn it off now
	/sbin/service squid stop
	# Turn it off after the next reboot
	/sbin/chkconfig squid off
else
	echo "Unrecognised argument: $1" >&2
	exit 1
fi