#!/bin/sh

DAEMON=inadyn-mt
. /etc/init.d/modlibrc

ivalueof () {
	eval "echo -n \$${1}${2}"
}

escvalue () {
	echo "$@" | sed 's,\([\ ]\),\\\1,g'
}

configure () {
	local ii value

	echo background
	echo verbose $INADYN_MT_VERBOSE
	[ -x /mod/etc/init.d/rc.syslogd ] && running=$(/mod/etc/init.d/rc.syslogd status)
	if [ "$running" = "running" ]; then
		echo syslog
	else
		echo log_file /var/log/${DAEMON}.log
	fi
	echo pid_file /var/run/${DAEMON}.pid

	ii=0
	# inadyn-mt -> dyndns.h can maintain maximal 5 servers
	while [ 5 -gt $ii ]; do
		if [ yes = "$(ivalueof INADYN_MT_ACTIVE $ii)" ]; then

			local url=$(ivalueof INADYN_MT_URL $ii | sed 's,\([^/]*\)\(.*\),\1 \2,')
			case $(ivalueof INADYN_MT_SERVICE $ii) in
				dyndns.org)
					echo -e '\ndyndns_system dyndns@dyndns.org'
					;;
				dyndns.org-statdns)
					echo -e '\ndyndns_system statdns@dyndns.org'
					;;
				dyndns.org-custom)
					echo -e '\ndyndns_system custom@dyndns.org'
					;;
				afraid.org)
					echo -e '\ndyndns_system default@freedns.afraid.org'
					;;
				zoneedit.com)
					echo -e '\ndyndns_system default@zoneedit.com'
					;;
				no-ip.com)
					echo -e '\ndyndns_system default@no-ip.com'
					;;
				tunnelbroker.net)
					echo -e '\ndyndns_system default@tunnelbroker.net'
					;;
				dns.he.net)
					echo -e '\ndyndns_system default@he.net'
					;;
				changeip.com)
					echo -e '\ndyndns_system default@changeip.com'
					;;
				userdefined)
					[ -z "$url" ] && continue
					echo -e '\ndyndns_system custom@http_svr_basic_auth'
					;;
			esac

			if [ -n "$url" ]; then
				echo dyndns_server_name $(echo $url | cut -d\  -f1)
				echo dyndns_server_url $(echo $url | cut -d\  -f2)
			fi

			local alias="$(ivalueof INADYN_MT_ALIAS $ii)"
			for value in $alias; do
				echo "alias ${value/:/ }"
			done
			local url_hostname="${url#*[?&]hostname=}"
			if [ -z "$alias" -a "$url_hostname" != "$url" ]; then
				#use hostname= as alias, see https://trac.boxmatrix.info/freetz-ng/ticket/1960
				echo "alias ${url_hostname%%&*}"
			fi

			value=$(ivalueof INADYN_MT_USER $ii)
			[ -n "$value" ] && echo "username $value"
			value=$(ivalueof INADYN_MT_PASS $ii)
			[ -n "$value" ] && echo "password $(escvalue $value)"
			value=$(ivalueof INADYN_MT_OPTIONS $ii)
			[ -n "$value" ] && echo "$value"
		fi
		let ii++
	done
}

config() {
	configure > $DAEMON_CONFIG
	if [ 5 -gt $(cat $DAEMON_CONFIG | wc -l) ]; then
		echo -n 'not configured, failed.'
		exit 1
	fi
}

start() {
	modlib_startdaemon $DAEMON --input_file $DAEMON_CONFIG 2>/dev/null
}

case $1 in
	""|load)
		modreg cgi $DAEMON 'Inadyn-mt'
		modreg daemon $DAEMON

		modlib_start $INADYN_MT_ENABLED
		;;
	unload)
		modunreg daemon $DAEMON
		modunreg cgi $DAEMON
		modlib_stop
		;;
	start)
		modlib_start
		;;
	stop)
		modlib_stop
		;;
	restart)
		modlib_restart
		;;
	status)
		modlib_status
		;;
	*)
		echo "Usage: $0 [load|unload|start|stop|restart|status]" 1>&2
		exit 1
		;;
esac

exit 0