#!/bin/bash

SQUID_STATUS=$(/sbin/e-smith/db configuration getprop squid status)
WEB_REQ=$(/sbin/e-smith/db configuration getprop chilli WebRequests)

if [[ $SQUID_STATUS == 'enabled' && $WEB_REQ == 'squid' ]]; then
	SQUID_PORT=$(/sbin/e-smith/db configuration getprop squid TransparentPort)
	# We need to insert rules just before the accept, so we'll have to compute this position
	POSITION=$(LANG=C iptables -t nat -L PREROUTING_FROM_CHILLI -n | \
		egrep -v '(Chain|target)' | grep -n ACCEPT | cut -d':' -f1)
	/sbin/iptables -t nat -I PREROUTING_FROM_CHILLI $POSITION -s $2 \
		-p tcp --dport 80 -j DNAT --to $1:$SQUID_PORT 
        /sbin/iptables -I IN_FROM_CHILLI 7 -s $2 \
                -p tcp --dport $SQUID_PORT --syn -j ACCEPT
fi