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simple-adblock: bugfix: proper dnsmasq reload on stop, rework start/stop logic

Browse source 
Signed-off-by: Stan Grishin <stangri@melmac.net>
This commit is contained in:
Stan Grishin 2019-10-06 09:33:33 -07:00
parent eed49dad9c
commit 756bbb7afd
5 changed files with 182 additions and 177 deletions
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4
net/simple-adblock/Makefile
View file

@ -5,8 +5,8 @@
include $(TOPDIR)/rules.mk
PKG_NAME:=simple-adblock
PKG_VERSION:=1.8.1
PKG_RELEASE:=11
PKG_VERSION:=1.8.2
PKG_RELEASE:=1
PKG_MAINTAINER:=Stan Grishin <stangri@melmac.net>
PKG_LICENSE:=GPL-3.0-or-later

6
net/simple-adblock/files/README.md
View file

@ -93,7 +93,9 @@ If ```simple-adblock``` and ```luci-app-simple-adblock``` packages are not found
## Default Settings
Default configuration has service disabled (use Web UI to enable/start service or run ```uci set simple-adblock.config.enabled=1; uci commit simple-adblock;```) and selected ad/malware lists suitable for routers with 64Mb RAM. The configuration file has lists in descending order starting with biggest ones, comment out or delete the lists you don't want or your router can't handle.
Default configuration has service disabled (use Web UI to enable/start service or run ```uci set simple-adblock.config.enabled=1; uci commit simple-adblock;```) and selected ad/malware lists suitable for routers with 64Mb RAM.
If your router has less then 64Mb RAM, edit the configuration file, located at ```/etc/config/simple-adblock```. The configuration file has lists in ascending order starting with smallest ones and each list has a preceding comment indicating its size, comment out or delete the lists you don't want or your router can't handle.
## How To Customize
@ -111,7 +113,7 @@ If you want to use CLI to customize ```simple-adblock``` config, refer to the [C
## How To Use
Once the service is enabled in the [config file](#default-settings), run ```/etc/init.d/simple-adblock start``` to start the service. Either ```/etc/init.d/simple-adblock restart``` or ```/etc/init.d/simple-adblock reload``` will only restart the service and/or re-donwload the lists if there were relevant changes in the config file since the last successful start. Had the previous start resulted in any error, either ```/etc/init.d/simple-adblock start```, ```/etc/init.d/simple-adblock restart``` or ```/etc/init.d/simple-adblock reload``` will attempt to re-download the lists.
Once the service is enabled in the [config file](#default-settings), run ```/etc/init.d/simple-adblock start``` to start the service. Either ```/etc/init.d/simple-adblock restart``` or ```/etc/init.d/simple-adblock reload``` will only restart the service and/or re-download the lists if there were relevant changes in the config file since the last successful start. Had the previous start resulted in any error, either ```/etc/init.d/simple-adblock start```, ```/etc/init.d/simple-adblock restart``` or ```/etc/init.d/simple-adblock reload``` will attempt to re-download the lists.
If you want to force simple-adblock to re-download the lists, run ```/etc/init.d/simple-adblock dl```.

9
net/simple-adblock/files/simple-adblock.conf
View file

@ -44,6 +44,9 @@ config simple-adblock 'config'
# blocklist too big for most routers
# list blacklist_domains_url 'https://mirror1.malwaredomains.com/files/justdomains'
# File size: 16.0K
list blacklist_hosts_url 'https://adaway.org/hosts.txt'
# File size: 20.0K
list blacklist_hosts_url 'https://raw.githubusercontent.com/hoshsadiq/adblock-nocoin-list/master/hosts.txt'
@ -55,7 +58,8 @@ config simple-adblock 'config'
# File size: 388.0K
# blocklist may be too big for some routers
list blacklist_hosts_url 'https://raw.githubusercontent.com/jawz101/MobileAdTrackers/master/hosts'
# blocklist may block some video-streaming content
# list blacklist_hosts_url 'https://raw.githubusercontent.com/jawz101/MobileAdTrackers/master/hosts'
# File size: 424.0K
# blocklist may be too big for some routers
@ -77,9 +81,6 @@ config simple-adblock 'config'
# blocklist too big for most routers
# list blacklist_hosts_url 'https://hostsfile.mine.nu/Hosts'
# site was down on last check
# list blacklist_domains_url 'https://adaway.org/hosts.txt'
# site was down on last check
# list blacklist_domains_url 'http://support.it-mate.co.uk/downloads/hosts.txt'

2
net/simple-adblock/files/simple-adblock.hotplug
View file

@ -1,5 +1,5 @@
#!/bin/sh
if [ "$ACTION" = "ifup" ]; then
sleep 10 && /etc/init.d/simple-adblock start &
sleep 10 && /etc/init.d/simple-adblock start hotplug &
fi

152
net/simple-adblock/files/simple-adblock.init
View file

@ -2,7 +2,7 @@
# Copyright 2017-2019 Stan Grishin (stangri@melmac.net)
# shellcheck disable=SC2039
# shellcheck disable=SC1091
PKG_VERSION=
PKG_VERSION='dev-test'
export START=94
export USE_PROCD=1
@ -69,14 +69,15 @@ output_ok() { output 1 "$_OK_"; output 2 "$__OK__\\n"; }
output_okn() { output 1 "$_OK_\\n"; output 2 "$__OK__\\n"; }
output_fail() { output 1 "$_FAIL_"; output 2 "$__FAIL__\\n"; }
output_failn() { output 1 "$_FAIL_\\n"; output 2 "$__FAIL__\\n"; }
str_replace() { echo "$1" | sed -e "s/$2/$3/g"; }
str_replace() { printf "%b" "$1" | sed -e "s/$(printf "%b" "$2")/$(printf "%b" "$3")/g"; }
str_contains() { test "$1" != "$(str_replace "$1" "$2" '')"; }
compare_versions() { test "$(printf '%s\n' "$@" | sort -V | head -n 1)" != "$1"; }
is_chaos_calmer() { ubus -S call system board | grep -q 'Chaos Calmer'; }
is_ipset_procd() { compare_versions "$(sed -ne 's/^Version: //p' /usr/lib/opkg/info/firewall.control)" "2019-09-18"; }
led_on(){ if [ -n "${1}" ] && [ -e "${1}/trigger" ]; then echo 'default-on' > "${1}/trigger" 2>&1; fi; }
led_off(){ if [ -n "${1}" ] && [ -e "${1}/trigger" ]; then echo 'none' > "${1}/trigger" 2>&1; fi; }
dnsmasq_kill() { killall -q -HUP dnsmasq; }
dnsmasq_hup() { killall -q -HUP dnsmasq; }
dnsmasq_kill() { killall -q -KILL dnsmasq; }
dnsmasq_restart() { /etc/init.d/dnsmasq restart >/dev/null 2>&1; }
unbound_restart() { /etc/init.d/unbound restart >/dev/null 2>&1; }
@ -255,7 +256,7 @@ is_enabled() {
output "$_ERROR_: $serviceName failed to discover WAN gateway.\\n"; return 1;
}
reload_resolver() {
dnsOps() {
local param output_text
case $1 in
on_start)
@ -273,7 +274,7 @@ reload_resolver() {
if ! uci -q get dhcp.@dnsmasq["$dnsInstance"].addnhosts | grep -q "$addnhostsFile"; then
uci add_list dhcp.@dnsmasq["$dnsInstance"].addnhosts="$addnhostsFile"
fi
param=dnsmasq_kill
param=dnsmasq_hup
output_text='Reloading DNSMASQ'
;;
dnsmasq.conf)
@ -297,7 +298,7 @@ reload_resolver() {
if [ "$(uci -q get dhcp.@dnsmasq["$dnsInstance"].serversfile)" != "$serversFile" ]; then
uci set dhcp.@dnsmasq["$dnsInstance"].serversfile="$serversFile"
fi
param=dnsmasq_kill
param=dnsmasq_hup
output_text='Reloading DNSMASQ'
;;
unbound.adb_list)
@ -335,10 +336,9 @@ reload_resolver() {
fi
;;
on_stop)
cacheOps 'create'
case "$targetDNS" in
dnsmasq.addnhosts | dnsmasq.servers)
param=dnsmasq_kill
param=dnsmasq_hup
;;
dnsmasq.conf | dnsmasq.ipset)
param=dnsmasq_restart
@ -475,11 +475,11 @@ cacheOps() {
local R_TMP
case "$1" in
create|backup)
[ -f "$outputFile" ] && mv "$outputFile" "$outputCache" >/dev/null 2>/dev/null
[ -s "$outputFile" ] && { mv -f "$outputFile" "$outputCache"; true > "$outputFile"; } >/dev/null 2>/dev/null
return $?
;;
restore|use)
[ -f "$outputCache" ] && mv "$outputCache" "$outputFile" >/dev/null 2>/dev/null
[ -s "$outputCache" ] && mv "$outputCache" "$outputFile" >/dev/null 2>/dev/null
return $?
;;
test)
@ -646,7 +646,7 @@ download_lists() {
rm -f "$A_TMP" "$B_TMP" "$outputFile" "$outputCache" "$outputGzip"
if [ "$(awk '/^MemFree/ {print int($2/1000)}' "/proc/meminfo")" -lt 32 ]; then
output 3 'Low free memory, restarting resolver... '
if reload_resolver 'quiet'; then
if dnsOps 'quiet'; then
output_okn
else
output_fail
@ -850,7 +850,35 @@ boot() {
start_service() {
is_enabled 'on_start' || return 1
local action status error message stats
if create_lock; then
if ! create_lock; then
output 3 "$serviceName: another instance is starting up "; output_fail
return 0
fi
status="$(tmpfs get status)"
error="$(tmpfs get error)"
message="$(tmpfs get message)"
stats="$(tmpfs get stats)"
action="$(tmpfs get triggers)"
if [ "$action" = 'download' ] || [ "$1" = 'download' ] || [ -n "$error" ]; then
action='download'
elif [ ! -s "$outputFile" ] && ! cacheOps 'test' && ! cacheOps 'testGzip'; then
action='download'
elif [ ! -s "$outputFile" ] && cacheOps 'testGzip' || cacheOps 'test'; then
action='restore'
elif [ "$action" = 'restart' ] || [ "$1" = 'restart' ]; then
action='restart'
elif [ -s "$outputFile" ] && [ -n "$status" ] && [ -z "$error" ]; then
if [ "$1" != 'hotplug' ]; then status; fi
exit 0
else
action='download'
fi
tmpfs del all
tmpfs set triggers
if is_chaos_calmer || ! is_ipset_procd; then
if [ "$forceDNS" -ne 0 ]; then
fw3Ops 'insert' 'dns_redirect'
@ -910,34 +938,35 @@ start_service() {
procd_close_instance
fi
status="$(tmpfs get status)"
error="$(tmpfs get error)"
message="$(tmpfs get message)"
stats="$(tmpfs get stats)"
action="$(tmpfs get triggers)"
case "$1" in
download) action='download';;
restart|*)
if [ -s "$outputFile" ] && [ -n "$status" ] && [ -z "$error" ]; then
status
exit 0
elif [ ! -s "$outputFile" ] && ! cacheOps 'test' && ! cacheOps 'testGzip'; then
action='download'
elif cacheOps 'test' || cacheOps 'testGzip'; then
action='start'
fi
if [ -n "$error" ]; then
if [ "$action" = 'restore' ]; then
output 0 "Starting $serviceName... "
output 3 "Starting $serviceName...\\n"
tmpfs set status "$statusStarting"
if cacheOps 'testGzip' && ! cacheOps 'test' && [ ! -s "$outputFile" ]; then
output 3 'Found compressed cache file, unpacking it '
tmpfs set message 'found compressed cache file, unpacking it.'
if cacheOps 'unpackGzip'; then
output_okn
else
output_fail
output "$_ERROR_: $serviceName failed to unpack compressed cache!\\n"
action='download'
fi
action="${action:-$1}"
;;
esac
tmpfs del all
tmpfs set triggers
case $action in
fi
if cacheOps 'test' && [ ! -s "$outputFile" ]; then
output 3 'Found cache file, reusing it '
tmpfs set message 'found cache file, reusing it.'
if cacheOps 'restore'; then
output_okn
dnsOps 'on_start'
else
output_fail
output "$_ERROR_: $serviceName failed to move '$outputCache' to '$outputFile'!\\n"
action='download'
fi
fi
fi
case "$action" in
download)
if [ -s "$outputFile" ] || cacheOps 'test' || cacheOps 'testGzip'; then
output 0 "Force-reloading $serviceName... "
@ -949,44 +978,21 @@ start_service() {
tmpfs set status "$statusStarting"
fi
download_lists
reload_resolver 'on_start'
dnsOps 'on_start'
;;
restart|start)
if [ "$action" = 'restart' ]; then
restart)
output 0 "Restarting $serviceName... "
output 3 "Restarting $serviceName...\\n"
tmpfs set status "$statusRestarting"
else
dnsOps 'on_start'
;;
start)
output 0 "Starting $serviceName... "
output 3 "Starting $serviceName...\\n"
tmpfs set status "$statusStarting"
fi
if cacheOps 'testGzip' && ! cacheOps 'test' && [ ! -s "$outputFile" ]; then
output 3 'Found compressed cache file, unpacking it '
tmpfs set message 'found compressed cache file, unpacking it.'
if cacheOps 'unpackGzip'; then
output_okn
else
output_fail
output "$_ERROR_: $serviceName failed to unpack compressed cache!\\n"
tmpfs add error 'Error: Failed to unpack compressed cache.'
return 1
fi
fi
if cacheOps 'test' && [ ! -s "$outputFile" ]; then
output 3 'Found cache file, reusing it '
tmpfs set message 'found cache file, reusing it.'
if cacheOps 'restore'; then
output_okn
else
output_fail
tmpfs add error "Error: moving '$outputCache' to '$outputFile'."
fi
fi
reload_resolver 'on_start'
dnsOps 'on_start'
;;
esac
if [ -s "$outputFile" ] && [ "$(tmpfs get status)" != "$statusFail" ]; then
output 0 "$__OK__\\n";
c="$(wc -l < "$outputFile")"
@ -1000,13 +1006,9 @@ start_service() {
else
output 0 "$__FAIL__\\n";
tmpfs set status "$statusFail"
tmpfs add error 'Error: Failed to create blocklist.'
tmpfs add error 'Error: Failed to create blocklist or restart DNS resolver.'
fi
remove_lock
else
output 3 "$serviceName: another instance is starting up "; output_fail
return 0
fi
}
service_started() { is_ipset_procd && procd_set_config_changed firewall; }
@ -1040,8 +1042,8 @@ stop_service() {
fw3Ops 'remove' 'all'
if [ -s "$outputFile" ]; then
output "Stopping $serviceName... "
tmpfs del triggers
if reload_resolver 'on_stop'; then
cacheOps 'create'
if dnsOps 'on_stop'; then
led_off "$led"
output 0 "$__OK__\\n"; output_okn
tmpfs set status "$statusStopped"
@ -1059,7 +1061,7 @@ check() {
load_package_config
local string="$1"
local c="$(grep -c "$string" "$outputFile")"
if [ ! -f "$outputFile" ]; then
if [ ! -s "$outputFile" ]; then
echo "No blacklist ('$outputFile') found."
elif [ -z "$string" ]; then
echo "Usage: /etc/init.d/${packageName} check string"