work around broken jsonfilter (fixes #18)

Author: stangri

root/usr/libexec/rpcd/luci.https-dns-proxy

@@ -18,11 +18,11 @@ readonly providersJson="/usr/share/${packageName}/providers.json"
 . "${IPKG_INSTROOT}/usr/share/libubox/jshn.sh"
 
 is_enabled() { "/etc/init.d/${1}" enabled; }
-is_running() { [ "$(ubus call service list "{\"name\":\"$1\"}" | jsonfilter -q -e "@['$1'].instances[*].running" | uniq)" = 'true' ]; }
+is_running() { local _json; _json="$(ubus call service list "{\"name\":\"$1\"}")"; [ "$(jsonfilter -q -s "$_json" -e "@[\"$1\"].instances.*.running" | uniq)" = 'true' ]; }
 get_version() { /usr/sbin/https-dns-proxy -V | head -1; }
 check_http2() { /usr/sbin/https-dns-proxy -V | grep -q 'nghttp2'; }
 check_http3() { /usr/sbin/https-dns-proxy -V | grep -q 'nghttp3'; }
-ubus_get_ports() { ubus call service list "{\"name\":\"$packageName\"}" | jsonfilter -e "@['${packageName}'].instances[*].data.firewall.*.dest_port"; }
+ubus_get_ports() { local _json; _json="$(ubus call service list "{\"name\":\"$packageName\"}")"; jsonfilter -s "$_json" -e "@[\"${packageName}\"].instances.*.data.firewall.*.dest_port"; }
 logger() { /usr/bin/logger -t "$packageName" "$@"; }
 print_json_bool() { json_init; json_add_boolean "$1" "$2"; json_dump; json_cleanup; }