adblock: release 4.5.8-1

-the trigger calls start refresh, start_service() skips the run
  while adblock_status in the runtime file is anything but error
- a missing or unreadable runtime file still starts a run,
  which covers the boot case, and a failed run is retried on the next interface event
- manual start, boot, restart and reload are unaffected;
  a suspended or stopped adblock is no longer restarted by an interface event
- wan6 in adb_trigger is supported now
- updatted the README and moved to the package root
- LuCI: reworked the feed editor, get rid of custom css

Signed-off-by: Dirk Brenken <dev@brenken.org>

net/adblock/Makefile

@@ -6,8 +6,8 @@
 include $(TOPDIR)/rules.mk
 
 PKG_NAME:=adblock
-PKG_VERSION:=4.5.7
-PKG_RELEASE:=4
+PKG_VERSION:=4.5.8
+PKG_RELEASE:=1
 PKG_LICENSE:=GPL-3.0-or-later
 PKG_MAINTAINER:=Dirk Brenken <dev@brenken.org>
 
@@ -24,7 +24,7 @@ endef
 define Package/adblock/description
 adblock blocks ad/abuse domains via dnsmasq, unbound, named, smartdns or kresd.
 adblock consumes a minimum of memory, is very fast and supports many domain blocklist sites plus local block- and allowlist overrides.
-Please see https://github.com/openwrt/packages/blob/master/net/adblock/files/README.md for further information.
+Please see https://github.com/openwrt/packages/blob/master/net/adblock/README.md for further information.
 
 endef
 

net/adblock/README.md

@@ -27,7 +27,7 @@ When the DNS server on your router receives DNS requests, you will sort out quer
 ## Quick Start
 For a typical setup these few steps are enough to get adblock up and running — see the sections below for details:
 1. Install the LuCI companion package: `apk update && apk add luci-app-adblock` (this pulls in the `adblock` backend as a dependency).
-2. Enable the adblock system service under `System → Startup`, then open LuCI under `Services → Adblock`, tick `Enabled` and (recommended) set a `Startup Trigger Interface` to your WAN interface (avoid IPv6/wan6).
+2. Enable the adblock system service under `System → Startup`, then open LuCI under `Services → Adblock`, tick `Enabled` and (recommended) set a `Startup Trigger Interface` to your WAN interface(s).
 3. Keep the small, pre-selected default feed selection to start with (e.g. `adguard`, `adguard_tracking` and `certpl`, ≈280K domains).
 4. Start and verify the service:
 
@@ -141,7 +141,7 @@ Support of the following fully pre-configured domain blocklist feeds (free for p
 * Install the LuCI companion package `luci-app-adblock` which also installs the main `adblock` package as a dependency
 * Enable the adblock system service (System -> Startup) and enable adblock itself (adblock -> General Settings)
 * It's strongly recommended to use the LuCI frontend to easily configure all aspects of adblock, the application is located in LuCI under the `Services` menu
-* It's also recommended to configure a `Startup Trigger Interface` to depend on your WAN ifup events during boot or restart of your router. Avoid IPv6 (wan6) interfaces here, as IPv6/netifd is chatty and would trigger frequent unnecessary adblock restarts
+* It's also recommended to configure a `Startup Trigger Interface` to depend on your WAN interface events during boot or restart of your router. Listing IPv6 interfaces (wan6) is fine as well: a trigger only starts a run if the last one did not succeed, so the chatty netifd update events no longer cause repeated downloads
 
 <a id="adblock-cli-interface"></a>
 ## Adblock CLI interface
@@ -185,7 +185,7 @@ The `report` sub-command accepts an output mode: `cli` (default, human-readable
 | adb_fetchparm        | -, auto-detected                   | manually override the config options for the selected download utility                             |
 | adb_fetchretry       | 5                                  | number of download attempts in case of an error (not supported by uclient-fetch)                   |
 | adb_fetchinsecure    | 0, disabled                        | don't check SSL server certificates during download                                                |
-| adb_trigger          | -, not set                         | logical reload trigger interface(s), e.g. `wan` (avoid IPv6 interfaces)                            |
+| adb_trigger          | -, not set                         | logical reload trigger interface(s), e.g. `wan` and `wan6`                                         |
 | adb_triggerdelay     | 5                                  | additional trigger delay in seconds before adblock processing begins                               |
 | adb_debug            | 0, disabled                        | set to 1 to enable the debug output                                                                |
 | adb_nicelimit        | 0, standard prio.                  | valid nice level range 0-19 of the adblock processes                                               |

net/adblock/files/adblock.init

@@ -17,6 +17,7 @@ adb_init="/etc/init.d/adblock"
 adb_script="/usr/bin/adblock.sh"
 adb_rundir="/var/run/adblock"
 adb_pidfile="/var/run/adblock/adblock.pid"
+adb_rtfile="/var/run/adblock/adblock.runtime.json"
 
 if [ -z "${IPKG_INSTROOT}" ]; then
 
@@ -54,12 +55,21 @@ boot() {
 }
 
 start_service() {
+	local status
+
 	if "${adb_init}" enabled; then
 		if [ "${action}" = "boot" ]; then
 			[ -n "$(uci_get adblock global adb_trigger)" ] && return 0
 		fi
+		if [ "${1}" = "refresh" ]; then
+			json_init
+			json_load_file "${adb_rtfile}" >/dev/null 2>&1
+			json_get_var status "adblock_status"
+			[ -n "${status}" ] && [ "${status}" != "error" ] && return 0
+		fi
+
 		procd_open_instance "adblock"
-		procd_set_param command "${adb_script}" "${@:-"${action}"}"
+		procd_set_param command "${adb_script}" "${action}"
 		procd_set_param pidfile "${adb_pidfile}"
 		procd_set_param nice "$(uci_get adblock global adb_nicelimit "0")"
 		procd_set_param stdout 0
@@ -105,7 +115,7 @@ status_service() {
 	local key keylist type value values
 
 	json_init
-	json_load_file "/var/run/adblock/adblock.runtime.json" >/dev/null 2>&1
+	json_load_file "${adb_rtfile}" >/dev/null 2>&1
 	json_get_keys keylist
 	if [ -n "${keylist}" ]; then
 		printf '%s\n' "::: adblock runtime information"
@@ -133,6 +143,6 @@ service_triggers() {
 
 	PROCD_RELOAD_DELAY="$((delay * 1000))"
 	for iface in ${trigger}; do
-		procd_add_interface_trigger "interface.*.up" "${iface}" "${adb_init}" start
+		procd_add_interface_trigger "interface.*" "${iface}" "${adb_init}" start refresh
 	done
 }