#!/bin/sh

DAEMON=tinyproxy
PID_FILE=/var/run/$DAEMON/$DAEMON.pid
. /etc/init.d/modlibrc


config() {
	modlib_config
	chown nobody:nobody $DAEMON_CONFIG
	[ -e /var/tmp/tinyproxy.filter ] && chown nobody:nobody /var/tmp/tinyproxy.filter
	if [ ! "$TINYPROXY_SYSLOG" = "yes" ]; then
		touch "$TINYPROXY_LOGFILE"
		chown nobody:nobody "$TINYPROXY_LOGFILE"
	fi
}

start() {
	modlib_startdaemon $DAEMON -c $DAEMON_CONFIG
}

start_addons() {
	if [ "$TINYPROXY_CATCHALL" == "yes" ]; then
		echo -n " -- Redirect HTTP (Port 80) to tinyproxy (iptables) ... "
		/usr/sbin/iptables -t nat -A PREROUTING -i lan -p tcp --dport 80 -j REDIRECT --to-port $TINYPROXY_PORT
		exitval=$?
		if [ "$exitval" -eq 0 ]; then
			echo 'done.'
		else
			echo 'failed.'
		fi

	fi

	if [ "$TINYPROXY_CONFSERVER" == "yes" ]; then
		echo -n " -- Starting the webserver for the proxy config file ... "
		httpd -p $TINYPROXY_CONFSERVERPORT -h /usr/mww_tinyproxy
		exitval=$?
		if [ "$exitval" -eq 0 ]; then
			echo 'done.'
		else
			echo 'failed.'
		fi

	fi
}

stop_addons() {
	if [ "$TINYPROXY_CATCHALL" == "yes" ] &&  iptables -t nat -S PREROUTING | grep -q "to-ports $TINYPROXY_PORT" ; then
		echo -n " -- Removing tinyproxy IPTABLES rules ... "
		while iptables -t nat -S PREROUTING | grep -q "to-ports $TINYPROXY_PORT"; do
			/usr/sbin/iptables -t nat -D PREROUTING -i lan -p tcp --dport 80 -j REDIRECT --to-ports $TINYPROXY_PORT
		done
		iptables -t nat -S PREROUTING | grep -q "to-ports $TINYPROXY_PORT" && echo  "failed." ||  echo  "done."
	fi

	confpid=$(ps | egrep "httpd\ -p.*tinyproxy" | sed 's/^[ ]*\([0-9]*\) .*/\1/')
	if [ "$TINYPROXY_CONFSERVER" == "yes" ] && [ -n "$confpid" ]; then
		echo -n " -- Stopping the webserver for the proxy config file ... "
		kill -9 $confpid > /dev/null 2>&1
		exitval=$?
		if [ "$exitval" -eq 0 ]; then
			echo 'done.'
		else
			echo 'failed.'
		fi
	fi
}

case $1 in
	""|load)
		modreg cgi 'tinyproxy' 'tinyproxy'
		modreg daemon $DAEMON

		modlib_add_user_and_group nobody
		mkdir -p ${PID_FILE%/*}
		chown nobody:nobody ${PID_FILE%/*}

		modlib_start $TINYPROXY_ENABLED
		;;
	unload)
		modunreg file tinyproxy
		modunreg daemon $DAEMON
		modunreg cgi tinyproxy
		modlib_stop
		;;
	start)
		modlib_start && start_addons
		;;
	stop)
		stop_addons
		modlib_stop
		;;
	restart)
		stop_addons
		modlib_restart
		;;
	status)
		modlib_status
		;;
esac

exit 0