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#!/bin/sh /etc/rc.common
# Copyright (C) 2018 Dengfeng Liu

. /lib/functions/network.sh

START=99

USE_PROCD=1
NAME=wifidogx
PROG=/usr/bin/${NAME}
CONFIGFILE=/tmp/wifidogx.conf

service_trigger() {
	procd_add_reload_trigger ${NAME}
}

prepare_wifidog_conf() {

	[ -f ${CONFIGFILE} ] && rm -f ${CONFIGFILE}

	network_get_device external_interface wan

	uci_validate_section ${NAME} ${NAME} common \
		'enabled:bool:0' \
		'gateway_id:string' \
		'gateway_interface:string:br-lan' \
		'external_interface:string:external_interface' \
		'auth_server_hostname:string' \
		'auth_server_port:port:443' \
		'auth_server_path:string:/wifidog/' \
		'check_interval:integer:60' \
		'client_timeout:integer:5' \
		'js_filter:bool:1' \
		'wired_passed:bool:1' \
		'apple_cna:bool:0' \
		'js_filter:bool:1' 

	# if gateway_id is not set, get it from br-lan
	if [ -z "$gateway_id" ]; then
		gateway_id=$(sed -e 's/://g' /sys/class/net/${gateway_interface}/address)
		# uci add gateway_id to config file
		uci set ${NAME}.common.gateway_id=$gateway_id
		uci commit ${NAME}
	fi
	
	# set above variables to config file
	echo "GatewayID $gateway_id" > ${CONFIGFILE}
	echo "GatewayInterface $gateway_interface" >> ${CONFIGFILE}
	echo "ExternalInterface $external_interface" >> ${CONFIGFILE}
	echo "AuthServer {
	Hostname $auth_server_hostname
	HTTPPort $auth_server_port
	Path $auth_server_path
}" >> ${CONFIGFILE}
	echo "CheckInterval $check_interval" >> ${CONFIGFILE}
	echo "ClientTimeout $client_timeout" >> ${CONFIGFILE}
	echo "JsFilter $js_filter" >> ${CONFIGFILE}
	echo "WiredPassed $wired_passed" >> ${CONFIGFILE}
	echo "BypassAppleCNA $apple_cna" >> ${CONFIGFILE}
}

init_config() {

	prepare_wifidog_conf 

	if [ ! -f ${CONFIGFILE} ]; then
		echo "no wifidogx.conf, exit..." >&2
		exit
	fi
}

start_service() {
	config_load $NAME

	init_config

	[ "$enabled" -eq 0 ] && {
		echo "wifidogx is disabled, exit..." >&2
		exit 0
	}

	procd_open_instance
	# -f: run in foreground
	procd_set_param command $PROG -c $CONFIGFILE -f -d 0
	procd_set_param respawn # respawn automatically if something died
	procd_set_param file $CONFIGFILE
	procd_close_instance
}

status_service() {
	/usr/bin/wdctlx status
}

reload_service() {
	stop 
	start
}