/
adblock-fast
executable file
·2150 lines (2072 loc) · 69.2 KB
/
adblock-fast
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#!/bin/sh /etc/rc.common
# Copyright 2023 MOSSDeF, Stan Grishin (stangri@melmac.ca)
# shellcheck disable=SC3043
# shellcheck disable=SC2034
START=94
# shellcheck disable=SC2034
USE_PROCD=1
LC_ALL=C
readonly PKG_VERSION='dev-test'
readonly packageName='adblock-fast'
readonly serviceName="$packageName $PKG_VERSION"
readonly packageConfigFile="/etc/config/${packageName}"
readonly dnsmasqAddnhostsFile="/var/run/${packageName}/dnsmasq.addnhosts"
readonly dnsmasqAddnhostsCache="/var/run/${packageName}/dnsmasq.addnhosts.cache"
readonly dnsmasqAddnhostsGzip="${packageName}.dnsmasq.addnhosts.gz"
readonly dnsmasqAddnhostsFilter='s|^|127.0.0.1 |;s|$||'
readonly dnsmasqAddnhostsFilterIPv6='s|^|:: |;s|$||'
readonly dnsmasqConfFile="/tmp/dnsmasq.d/${packageName}"
readonly dnsmasqConfCache="/var/run/${packageName}/dnsmasq.conf.cache"
readonly dnsmasqConfGzip="${packageName}.dnsmasq.conf.gz"
readonly dnsmasqConfFilter='s|^|local=/|;s|$|/|'
readonly dnsmasqIpsetFile="/tmp/dnsmasq.d/${packageName}.ipset"
readonly dnsmasqIpsetCache="/var/run/${packageName}/dnsmasq.ipset.cache"
readonly dnsmasqIpsetGzip="${packageName}.dnsmasq.ipset.gz"
readonly dnsmasqIpsetFilter='s|^|ipset=/|;s|$|/adb|'
readonly dnsmasqNftsetFile="/tmp/dnsmasq.d/${packageName}.nftset"
readonly dnsmasqNftsetCache="/var/run/${packageName}/dnsmasq.nftset.cache"
readonly dnsmasqNftsetGzip="${packageName}.dnsmasq.nftset.gz"
readonly dnsmasqNftsetFilter='s|^|nftset=/|;s|$|/4#inet#fw4#adb4|'
readonly dnsmasqNftsetFilterIPv6='s|^|nftset=/|;s|$|/4#inet#fw4#adb4,6#inet#fw4#adb6|'
readonly dnsmasqServersFile="/var/run/${packageName}/dnsmasq.servers"
readonly dnsmasqServersCache="/var/run/${packageName}/dnsmasq.servers.cache"
readonly dnsmasqServersGzip="${packageName}.dnsmasq.servers.gz"
readonly dnsmasqServersFilter='s|^|server=/|;s|$|/|'
readonly smartdnsDomainSetFile="/var/run/${packageName}/smartdns.domainset"
readonly smartdnsDomainSetCache="/var/run/${packageName}/smartdns.domainset.cache"
readonly smartdnsDomainSetConfig="/var/run/${packageName}/smartdns.domainset.conf"
readonly smartdnsDomainSetGzip="${packageName}.smartdns.domainset.gz"
readonly smartdnsDomainSetFilter=';'
readonly smartdnsIpsetFile="/var/run/${packageName}/smartdns.ipset"
readonly smartdnsIpsetCache="/var/run/${packageName}/smartdns.ipset.cache"
readonly smartdnsIpsetConfig="/var/run/${packageName}/smartdns.ipset.conf"
readonly smartdnsIpsetGzip="${packageName}.smartdns.ipset.gz"
readonly smartdnsIpsetFilter=';'
readonly smartdnsNftsetFile="/var/run/${packageName}/smartdns.nftset"
readonly smartdnsNftsetCache="/var/run/${packageName}/smartdns.nftset.cache"
readonly smartdnsNftsetConfig="/var/run/${packageName}/smartdns.nftset.conf"
readonly smartdnsNftsetGzip="${packageName}.smartdns.nftset.gz"
readonly smartdnsNftsetFilter=';'
readonly unboundFile="/var/lib/unbound/adb_list.${packageName}"
readonly unboundCache="/var/run/${packageName}/unbound.cache"
readonly unboundGzip="${packageName}.unbound.gz"
readonly unboundFilter='s|^|local-zone: "|;s|$|" static|'
readonly A_TMP="/var/${packageName}.a.tmp"
readonly B_TMP="/var/${packageName}.b.tmp"
readonly SED_TMP="/var/${packageName}.sed.tmp"
readonly uciConfigFile="/etc/config/${packageName}"
readonly runningConfigFile="/dev/shm/${packageName}.config"
readonly runningErrorFile="/dev/shm/${packageName}.error"
readonly runningStatusFile="/dev/shm/${packageName}.status"
readonly hostsFilter='/localhost/d;/^#/d;/^[^0-9]/d;s/^0\.0\.0\.0.//;s/^127\.0\.0\.1.//;s/[[:space:]]*#.*$//;s/[[:cntrl:]]$//;s/[[:space:]]//g;/[`~!@#\$%\^&\*()=+;:"'\'',<>?/\|[{}]/d;/]/d;/\./!d;/^$/d;/[^[:alnum:]_.-]/d;'
readonly domainsFilter='/^#/d;s/[[:space:]]*#.*$//;s/[[:space:]]*$//;s/[[:cntrl:]]$//;/[[:space:]]/d;/[`~!@#\$%\^&\*()=+;:"'\'',<>?/\|[{}]/d;/]/d;/^$/d;/[^[:alnum:]_.-]/d;'
readonly adBlockPlusFilter='/^#/d;/^!/d;s/[[:space:]]*#.*$//;s/^||//;s/\^$//;s/[[:space:]]*$//;s/[[:cntrl:]]$//;/[[:space:]]/d;/[`~!@#\$%\^&\*()=+;:"'\'',<>?/\|[{}]/d;/]/d;/\./!d;/^$/d;/[^[:alnum:]_.-]/d;'
readonly dnsmasqFileFilter='\|^server=/[[:alnum:]_.-].*/|!d;s|server=/||;s|/.*$||'
readonly dnsmasq2FileFilter='\|^local=/[[:alnum:]_.-].*/|!d;s|local=/||;s|/.*$||'
readonly dnsmasq3FileFilter='\|^address=/[[:alnum:]_.-].*/|!d;s|address=/||;s|/.*$||'
readonly _ERROR_='\033[0;31mERROR\033[0m'
readonly _OK_='\033[0;32m\xe2\x9c\x93\033[0m'
readonly _FAIL_='\033[0;31m\xe2\x9c\x97\033[0m'
readonly __OK__='\033[0;32m[\xe2\x9c\x93]\033[0m'
readonly __FAIL__='\033[0;31m[\xe2\x9c\x97]\033[0m'
readonly _WARNING_='\033[0;33mWARNING\033[0m'
# shellcheck disable=SC2155
readonly ipset="$(command -v ipset)"
# shellcheck disable=SC2155
readonly nft="$(command -v nft)"
readonly canaryDomainsMozilla='use-application-dns.net'
readonly canaryDomainsiCloud='mask.icloud.com mask-h2.icloud.com'
readonly triggersReload='parallel_downloads debug download_timeout allowed_domain blocked_domain allowed_url blocked_url dns config_update_enabled config_update_url dnsmasq_config_file_url curl_additional_param curl_max_file_size curl_retry'
readonly triggersRestart='compressed_cache compressed_cache_dir force_dns led force_dns_port'
dl_command=
dl_flag=
isSSLSupported=
outputFilter=
outputFilterIPv6=
outputFile=
outputGzip=
outputCache=
awk='awk'
load_environment_flag=
allowed_url=
blocked_url=
fw4_restart_flag=
# shellcheck disable=SC1091
. /lib/functions.sh
# shellcheck disable=SC1091
. /lib/functions/network.sh
# shellcheck disable=SC1091
. /usr/share/libubox/jshn.sh
append_newline() { is_newline_ending "$1" || echo '' >> "$1"; }
check_ipset() { { command -v ipset && /usr/sbin/ipset help hash:net; } >/dev/null 2>&1; }
check_nft() { command -v nft >/dev/null 2>&1; }
check_dnsmasq() { command -v dnsmasq >/dev/null 2>&1; }
check_dnsmasq_ipset() {
local o;
check_dnsmasq || return 1
o="$(dnsmasq -v 2>/dev/null)"
check_ipset && ! echo "$o" | grep -q 'no-ipset' && echo "$o" | grep -q 'ipset'
}
check_dnsmasq_nftset() {
local o;
check_dnsmasq || return 1
o="$(dnsmasq -v 2>/dev/null)"
check_nft && ! echo "$o" | grep -q 'no-nftset' && echo "$o" | grep -q 'nftset'
}
check_smartdns() { command -v smartdns >/dev/null 2>&1; }
check_smartdns_ipset() { check_smartdns && check_ipset; }
check_smartdns_nftset() { check_smartdns && check_nft; }
check_unbound() { command -v unbound >/dev/null 2>&1; }
config_cache() {
local param="$1" var="$2"
local _reload="$triggersReload"
local _restart="$triggersRestart"
local i ret
case "$param" in
create|set)
cp -f "$uciConfigFile" "$runningConfigFile"
;;
get)
case "$var" in
trigger_fw4)
ret='false'
if [ -s "$runningConfigFile" ]; then
local UCI_CONFIG_DIR="${runningConfigFile%/*}"
is_fw4_restart_needed && ret='true'
fi
printf "%b" "$ret"
return
;;
trigger_service)
local old_allowed_url old_blocked_url
if [ ! -s "$runningConfigFile" ]; then
ret='on_boot'
elif cmp -s "$uciConfigFile" "$runningConfigFile"; then
ret='restart'
else
for i in $_reload; do
local val_current val_old UCI_CONFIG_DIR
case "$i" in
allowed_url)
val_current="$allowed_url"
config_load "$runningConfigFile"
config_foreach append_url 'file_url' old_allowed_url old_blocked_url
val_old="$old_allowed_url"
;;
blocked_url)
val_current="$blocked_url"
config_load "$runningConfigFile"
config_foreach append_url 'file_url' old_allowed_url old_blocked_url
val_old="$old_blocked_url"
;;
*)
UCI_CONFIG_DIR=
val_current="$(uci_get "$packageName" 'config' "$i")"
UCI_CONFIG_DIR="${runningConfigFile%/*}"
val_old="$(uci_get "$packageName" 'config' "$i")"
;;
esac
if [ "$val_current" != "$val_old" ]; then
ret='download'
unset _restart
break
fi
done
for i in $_restart; do
local val_current val_old UCI_CONFIG_DIR
UCI_CONFIG_DIR=
val_current="$(uci_get "$packageName" 'config' "$i")"
UCI_CONFIG_DIR="${runningConfigFile%/*}"
val_old="$(uci_get "$packageName" 'config' "$i")"
if [ "$val_current" != "$val_old" ]; then
ret='restart'
break
fi
done
fi
printf "%b" "$ret"
return
;;
*)
local UCI_CONFIG_DIR="${runningConfigFile%/*}"
ret="$(uci_get "$packageName" 'config' "$var")"
printf "%b" "$ret"
return
;;
esac
;;
esac
}
debug() { local __i __j; for __i in "$@"; do eval "__j=\$$__i"; echo "${__i}: ${__j} "; done; }
dns_set_output_values() {
case "$1" in
dnsmasq.addnhosts)
outputFilter="$dnsmasqAddnhostsFilter"
outputFile="$dnsmasqAddnhostsFile"
outputCache="$dnsmasqAddnhostsCache"
outputGzip="${compressed_cache_dir}/${dnsmasqAddnhostsGzip}"
if [ "$ipv6_enabled" -ne '0' ]; then
outputFilterIPv6="$dnsmasqAddnhostsFilterIPv6"
fi
;;
dnsmasq.conf)
outputFilter="$dnsmasqConfFilter"
outputFile="$dnsmasqConfFile"
outputCache="$dnsmasqConfCache"
outputGzip="${compressed_cache_dir}/${dnsmasqConfGzip}"
;;
dnsmasq.ipset)
outputFilter="$dnsmasqIpsetFilter"
outputFile="$dnsmasqIpsetFile"
outputCache="$dnsmasqIpsetCache"
outputGzip="${compressed_cache_dir}/${dnsmasqIpsetGzip}"
;;
dnsmasq.nftset)
if [ "$ipv6_enabled" -ne '0' ]; then
outputFilter="$dnsmasqNftsetFilterIPv6"
else
outputFilter="$dnsmasqNftsetFilter"
fi
outputFile="$dnsmasqNftsetFile"
outputCache="$dnsmasqNftsetCache"
outputGzip="${compressed_cache_dir}/${dnsmasqNftsetGzip}"
;;
dnsmasq.servers)
outputFilter="$dnsmasqServersFilter"
outputFile="$dnsmasqServersFile"
outputCache="$dnsmasqServersCache"
outputGzip="${compressed_cache_dir}/${dnsmasqServersGzip}"
;;
smartdns.domainset)
outputFilter="$smartdnsDomainSetFilter"
outputFile="$smartdnsDomainSetFile"
outputCache="$smartdnsDomainSetCache"
outputGzip="${compressed_cache_dir}/${smartdnsDomainSetGzip}"
outputConfig="$smartdnsDomainSetConfig"
;;
smartdns.ipset)
outputFilter="$smartdnsIpsetFilter"
outputFile="$smartdnsIpsetFile"
outputCache="$smartdnsIpsetCache"
outputGzip="${compressed_cache_dir}/${smartdnsIpsetGzip}"
outputConfig="$smartdnsIpsetConfig"
;;
smartdns.nftset)
outputFilter="$smartdnsNftsetFilter"
outputFile="$smartdnsNftsetFile"
outputCache="$smartdnsNftsetCache"
outputGzip="${compressed_cache_dir}/${smartdnsNftsetGzip}"
outputConfig="$smartdnsNftsetConfig"
;;
unbound.adb_list)
outputFilter="$unboundFilter"
outputFile="$unboundFile"
outputCache="$unboundCache"
outputGzip="$unboundGzip"
;;
esac
}
dnsmasq_hup() { killall -q -s HUP dnsmasq; }
dnsmasq_kill() { killall -q -s KILL dnsmasq; }
dnsmasq_restart() { /etc/init.d/dnsmasq restart >/dev/null 2>&1; }
is_enabled() { uci_get "$1" 'config' 'enabled' '0'; }
is_fw4_restart_needed() {
[ "$fw4_restart_flag" = 'true' ] && return 0
local dns force_dns
dns="$(uci_get "$packageName" 'config' 'dns' 'dnsmasq.servers')"
force_dns="$(uci_get "$packageName" 'config' 'force_dns' '1')"
if [ "$force_dns" = '1' ]; then
return 0
elif [ "$dns" = 'dnsmasq.ipset' ]; then
return 0
elif [ "$dns" = 'dnsmasq.nftset' ]; then
return 0
elif [ "$dns" = 'smartdns.ipset' ]; then
return 0
elif [ "$dns" = 'smartdns.nftset' ]; then
return 0
else
return 1
fi
}
is_integer() {
case "$1" in
(*[!0123456789]*) return 1;;
('') return 1;;
(*) return 0;;
esac
}
is_greater() { test "$(printf '%s\n' "$@" | sort -V | head -n 1)" != "$1"; }
is_greater_or_equal() { test "$(printf '%s\n' "$@" | sort -V | head -n 1)" = "$2"; }
# shellcheck disable=SC3057
is_https_url() { [ "${1:0:8}" = "https://" ]; }
is_newline_ending() { [ "$(tail -c1 "$1" | wc -l)" -ne '0' ]; }
is_present() { command -v "$1" >/dev/null 2>&1; }
is_running() {
local i j
i="$(json 'get' 'status')"
j="$(ubus_get_data 'status')"
if [ "$i" = 'statusStopped' ] || [ -z "${i}${j}" ]; then
return 1
else
return 0
fi
}
ipset() { "$ipset" "$@" >/dev/null 2>&1; }
get_ram_free() { ubus call system info | jsonfilter -e '@.memory.free'; }
get_ram_total() { ubus call system info | jsonfilter -e '@.memory.total'; }
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; }
logger() { /usr/bin/logger -t "$packageName" "$@"; }
nft() { "$nft" "$@" >/dev/null 2>&1; }
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"; }
print_json_bool() { json_init; json_add_boolean "$1" "$2"; json_dump; json_cleanup; }
print_json_int() { json_init; json_add_int "$1" "$2"; json_dump; json_cleanup; }
print_json_string() { json_init; json_add_string "$1" "$2"; json_dump; json_cleanup; }
sanitize_dir() { [ -d "$(readlink -fn "$1")" ] && readlink -fn "$1"; }
smartdns_restart() { /etc/init.d/smartdns restart >/dev/null 2>&1; }
str_contains() { test "$1" != "$(str_replace "$1" "$2" '')"; }
str_contains_word() { echo "$1" | grep -q -w "$2"; }
# shellcheck disable=SC2018,SC2019
str_to_lower() { echo "$1" | tr 'A-Z' 'a-z'; }
# shellcheck disable=SC2018,SC2019
str_to_upper() { echo "$1" | tr 'a-z' 'A-Z'; }
str_replace() { printf "%b" "$1" | sed -e "s/$(printf "%b" "$2")/$(printf "%b" "$3")/g"; }
ubus_get_data() { ubus call service list "{ 'name': '$packageName' }" | jsonfilter -e "@['${packageName}'].instances.main.data.${1}"; }
ubus_get_ports() { ubus call service list "{ 'name': '$packageName' }" | jsonfilter -e "@['${packageName}'].instances.main.data.firewall.*.dest_port"; }
uci_get_protocol() { uci_get 'network' "$1" 'proto'; }
unbound_restart() { /etc/init.d/unbound restart >/dev/null 2>&1; }
json() {
# shellcheck disable=SC2034
local action="$1" param="$2" value="$3"
shift 3
# shellcheck disable=SC2124
local extras="$@" line
local status message error stats
local ret i
if [ -s "$runningStatusFile" ]; then
json_load_file "$runningStatusFile" 2>/dev/null
json_select 'data' 2>/dev/null
for i in status message error stats; do
json_get_var "$i" "$i" 2>/dev/null
done
fi
case "$action" in
get)
printf "%b" "$(eval echo "\$$param")"
return
;;
add)
line="$(eval echo "\$$param")"
eval "$param"='${line:+$line }${value}${extras:+|$extras}'
;;
del)
case "$param" in
all)
unset status message error stats;;
*)
unset "$param";;
esac
;;
set)
eval "$param"='${value}${extras:+|$extras}'
;;
esac
json_init
json_add_object 'data'
json_add_string version "$PKG_VERSION"
json_add_string status "$status"
json_add_string message "$message"
json_add_string error "$error"
json_add_string stats "$stats"
json_close_object
mkdir -p "${runningStatusFile%/*}"
json_dump > "$runningStatusFile"
sync
}
get_local_filesize() {
local file="$1" size
[ -f "$file" ] || return 0
if is_present stat; then
size="$(stat -c%s "$file")"
elif is_present wc; then
size="$(wc -c < "$file")"
fi
# shellcheck disable=SC3037
echo -en "$size"
}
get_url_filesize() {
local url="$1" size size_command
[ -n "$url" ] || return 0
is_present 'curl' || return 0
size_command='curl --silent --insecure --fail --head --request GET'
# size="$($size_command "$url" | grep -Po '^[cC]ontent-[lL]ength: \K\w+')"
size="$($size_command "$url" | grep -Eo '^[cC]ontent-[lL]ength: (.*)' | awk '{print $2}')"
# shellcheck disable=SC3037
echo -en "$size"
}
output() {
# Target verbosity level with the first parameter being an integer
is_integer() {
case "$1" in
(*[!0123456789]*) return 1;;
('') return 1;;
(*) return 0;;
esac
}
local msg memmsg logmsg text
local sharedMemoryOutput="/dev/shm/$packageName-output"
if [ -z "$verbosity" ] && [ -n "$packageName" ]; then
verbosity="$(uci_get "$packageName" 'config' 'verbosity' '2')"
fi
if [ $# -ne 1 ] && is_integer "$1"; then
if [ $((verbosity & $1)) -gt 0 ] || [ "$verbosity" = "$1" ]; then shift; text="$*"; else return 0; fi
fi
text="${text:-$*}";
[ -t 1 ] && printf "%b" "$text"
# shellcheck disable=SC3060
msg="${text//$serviceName /service }";
if [ "$(printf "%b" "$msg" | wc -l)" -gt 0 ]; then
[ -s "$sharedMemoryOutput" ] && memmsg="$(cat "$sharedMemoryOutput")"
logmsg="$(printf "%b" "${memmsg}${msg}" | sed 's/\x1b\[[0-9;]*m//g')"
logger -t "${packageName:-service} [$$]" "$(printf "%b" "$logmsg")"
rm -f "$sharedMemoryOutput"
else
printf "%b" "$msg" >> "$sharedMemoryOutput"
fi
}
uci_add_list_if_new() {
local PACKAGE="$1"
local CONFIG="$2"
local OPTION="$3"
local VALUE="$4"
local i
[ -n "$PACKAGE" ] && [ -n "$CONFIG" ] && [ -n "$OPTION" ] && [ -n "$VALUE" ] || return 1
for i in $(uci_get "$PACKAGE" "$CONFIG" "$OPTION"); do
[ "$i" = "$VALUE" ] && return 0
done
uci_add_list "$PACKAGE" "$CONFIG" "$OPTION" "$VALUE"
}
uci_changes() {
local PACKAGE="$1"
local CONFIG="$2"
local OPTION="$3"
if [ -s "${UCI_CONFIG_DIR:-/etc/config/}${PACKAGE}" ]; then
/sbin/uci ${UCI_CONFIG_DIR:+-c $UCI_CONFIG_DIR} changes "$PACKAGE${CONFIG:+.$CONFIG}${OPTION:+.$OPTION}"
fi
}
if type extra_command 1>/dev/null 2>&1; then
extra_command 'allow' 'Allows domain in current block-list and config'
extra_command 'check' 'Checks if specified domain is found in current block-list'
extra_command 'check_lists' 'Checks if specified domain is found in enabled block-lists'
extra_command 'dl' 'Force-downloads all enabled block-list'
extra_command 'killcache' 'Delete all cached files'
extra_command 'pause' 'Pauses AdBlocking for specified number of seconds (default: 60)'
extra_command 'sizes' 'Displays the file-sizes of enabled block-lists'
extra_command 'version' 'Show version information'
else
# shellcheck disable=SC2034
EXTRA_COMMANDS='allow check dl killcache pause sizes status_service version'
# shellcheck disable=SC2034
EXTRA_HELP=' allow Allows domain(s) in current block-list and config
check Checks if specified domain is found in current block-list
dl Force-downloads all enabled block-list
pause Pauses AdBlocking for specified number of seconds (default: 60)
sizes Displays the file-sizes of enabled block-lists'
fi
get_text() {
local r
case "$1" in
errorConfigValidationFail) r="$packageName config validation failed";;
errorServiceDisabled) r="$packageName is currently disabled";;
errorNoDnsmasqIpset)
r="dnsmasq ipset support is enabled in $packageName, but dnsmasq is either not installed or installed dnsmasq does not support ipset";;
errorNoIpset)
r="dnsmasq ipset support is enabled in $packageName, but ipset is either not installed or installed ipset does not support 'hash:net' type";;
errorNoDnsmasqNftset)
r="dnsmasq nft set support is enabled in $packageName, but dnsmasq is either not installed or installed dnsmasq does not support nft set";;
errorNoNft) r="dnsmasq nft sets support is enabled in $packageName, but nft is not installed";;
errorNoWanGateway) r="The ${serviceName} failed to discover WAN gateway";;
errorOutputDirCreate) r="failed to create directory for %s file";;
errorOutputFileCreate) r="failed to create $outputFile file";;
errorFailDNSReload) r="failed to restart/reload DNS resolver";;
errorSharedMemory) r="failed to access shared memory";;
errorSorting) r="failed to sort data file";;
errorOptimization) r="failed to optimize data file";;
errorAllowListProcessing) r="failed to process allow-list";;
errorDataFileFormatting) r="failed to format data file";;
errorMovingDataFile) r="failed to move data file '${A_TMP}' to '${outputFile}'";;
errorCreatingCompressedCache) r="failed to create compressed cache";;
errorRemovingTempFiles) r="failed to remove temporary files";;
errorRestoreCompressedCache) r="failed to unpack compressed cache";;
errorRestoreCache) r="failed to move '$outputCache' to '$outputFile'";;
errorOhSnap) r="failed to create block-list or restart DNS resolver";;
errorStopping) r="failed to stop $serviceName";;
errorDNSReload) r="failed to reload/restart DNS resolver";;
errorDownloadingConfigUpdate) r="failed to download Config Update file";;
errorDownloadingList) r="failed to download";;
errorParsingConfigUpdate) r="failed to parse Config Update file";;
errorParsingList) r="failed to parse";;
errorNoSSLSupport) r="no HTTPS/SSL support on device";;
errorCreatingDirectory) r="failed to create output/cache/gzip file directory";;
errorDetectingFileType) r="failed to detect format";;
errorNothingToDo) r="no blocked list URLs nor blocked-domains enabled";;
errorTooLittleRam) r="free ram (%s) is not enough to process all enabled block-lists";;
statusNoInstall) r="$serviceName is not installed or not found";;
statusStopped) r="Stopped";;
statusStarting) r="Starting";;
statusRestarting) r="Restarting";;
statusForceReloading) r="Force Reloading";;
statusDownloading) r="Downloading";;
statusProcessing) r="Processing";;
statusFail) r="failed to start";;
statusSuccess) r="Success";;
warningExternalDnsmasqConfig)
r="use of external dnsmasq config file detected, please set 'dns' option to 'dnsmasq.conf'";;
warningMissingRecommendedPackages) r="some recommended packages are missing";;
warningInvalidCompressedCacheDir) r="invalid compressed cache directory '%s'";;
warningFreeRamCheckFail) r="can't detect free RAM";;
esac
shift
# shellcheck disable=SC2059
printf "$r" "$@"
}
load_network() {
local param="$1"
local i j wan_if wan_gw
local counter wan_if_timeout="$procd_boot_wan_timeout" wan_gw_timeout='5'
counter=0
while [ -z "$wan_if" ]; do
network_flush_cache
network_find_wan wan_if
if [ -n "$wan_if" ]; then
output "WAN interface found: '${wan_if}'.\\n"
break
fi
if [ "$counter" -gt "$wan_if_timeout" ]; then
output "WAN interface timeout, assuming 'wan'.\\n"
wan_if='wan'
break
fi
counter=$((counter+1))
output "Waiting to discover WAN Interface...\\n"
sleep 1
done
counter=0
if [ "$(uci_get_protocol "$wan_if")" = 'pppoe' ]; then
wan_gw_timeout=$((wan_gw_timeout+10))
fi
while [ "$counter" -le "$wan_gw_timeout" ]; do
network_flush_cache
network_get_gateway wan_gw "$wan_if"
if [ -n "$wan_gw" ]; then
output "WAN gateway found: '${wan_gw}.'\\n"
return 0
fi
counter=$((counter+1))
output "Waiting to discover $wan_if gateway...\\n"
sleep 1
done
json add error 'errorNoWanGateway'
output "${_ERROR_}: $(get_text 'errorNoWanGateway')!\\n"; return 1;
}
append_url() {
local cfg="$1" allow_var="${2:-allowed_url}" block_var="${3:-blocked_url}"
local old_value
local en action url
config_get_bool en "$cfg" enabled '1'
config_get action "$cfg" action 'block'
config_get url "$cfg" url
if [ "$en" = '1' ]; then
if [ "$action" = 'allow' ]; then
old_value=$(eval echo "\$$allow_var")
old_value="${old_value:+$old_value }${url}"
eval "$allow_var"="\$old_value"
else
old_value=$(eval echo "\$$block_var")
old_value="${old_value:+$old_value }${url}"
eval "$block_var"="\$old_value"
fi
fi
}
detect_file_type() {
local file="$1"
if [ "$(head -1 "$file")" = '[Adblock Plus]' ] || \
grep -q '^||' "$file"; then
echo 'adblockplus'
elif grep -q '^server=' "$file"; then
echo 'dnsmasq'
elif grep -q '^local=' "$file"; then
echo 'dnsmasq2'
elif grep -q '^address=' "$file"; then
echo 'dnsmasq3'
elif grep -q '^0\.0\.0\.0' "$file" || grep -q '^127\.0\.0\.1' "$file"; then
echo 'hosts'
elif [ -n "$(sed "$domainsFilter" "$file" | head -1)" ]; then
echo 'domains'
fi
}
load_environment() {
local i j
local validation_result="$1" param="$2"
[ -z "$load_environment_flag" ] || return 0
if [ "$validation_result" != '0' ]; then
json add error 'errorConfigValidationFail'
output "${_ERROR_}: $(get_text 'errorConfigValidationFail')!\\n"
output "Please check if the '$packageConfigFile' contains correct values for config options.\\n"
return 1
fi
if [ "$enabled" -eq 0 ]; then
json add error 'errorServiceDisabled'
output "${_ERROR_}: $(get_text 'errorServiceDisabled')!\\n"
output "Run the following commands before starting service again:\\n"
output "uci set ${packageName}.config.enabled='1'; uci commit $packageName;\\n"
return 1
fi
if [ "$debug" -ne '0' ]; then
exec 1>>"/tmp/$packageName.log"
exec 2>&1
set -x
fi
# TODO: check for resolver and error out on start
if [ -n "$dnsmasq_config_file_url" ]; then
case "$dns" in
dnsmasq.conf) :;;
*)
if [ "$param" != 'quiet' ]; then
json add warning 'warningExternalDnsmasqConfig'
output "${_WARNING_}: $(get_text 'warningExternalDnsmasqConfig')!\\n"
fi
;;
esac
fi
case "$dns" in
dnsmasq.*)
if dnsmasq -v 2>/dev/null | grep -q 'no-IDN' || ! dnsmasq -v 2>/dev/null | grep -q -w 'IDN'; then
allow_non_ascii='0'
fi
;;
smartdns.*)
allow_non_ascii='0'
;;
unbound.*)
allow_non_ascii='1'
;;
esac
case "$dns" in
dnsmasq.ipset)
if dnsmasq -v 2>/dev/null | grep -q 'no-ipset' || ! dnsmasq -v 2>/dev/null | grep -q -w 'ipset'; then
if [ "$param" != 'quiet' ]; then
json add error 'errorNoDnsmasqIpset'
output "${_ERROR_}: $(get_text 'errorNoDnsmasqIpset')!\\n"
fi
dns='dnsmasq.servers'
fi
if ! ipset help hash:net; then
if [ "$param" != 'quiet' ]; then
json add error 'errorNoIpset'
output "${_ERROR_}: $(get_text 'errorNoIpset')!\\n"
fi
dns='dnsmasq.servers'
fi
;;
dnsmasq.nftset)
if dnsmasq -v 2>/dev/null | grep -q 'no-nftset' || ! dnsmasq -v 2>/dev/null | grep -q -w 'nftset'; then
if [ "$param" != 'quiet' ]; then
json add error 'errorNoDnsmasqNftset'
output "${_ERROR_}: $(get_text 'errorNoDnsmasqNftset')!\\n"
fi
dns='dnsmasq.servers'
fi
if [ -z "$nft" ]; then
if [ "$param" != 'quiet' ]; then
json add error 'errorNoNft'
output "${_ERROR_}: $(get_text 'errorNoNft')!\\n"
fi
dns='dnsmasq.servers'
fi
;;
smartdns.ipset)
if ! ipset help hash:net; then
if [ "$param" != 'quiet' ]; then
json add error 'errorNoIpset'
output "${_ERROR_}: $(get_text 'errorNoIpset')!\\n"
fi
dns='smartdns.domainset'
fi
;;
smartdns.nftset)
if [ -z "$nft" ]; then
if [ "$param" != 'quiet' ]; then
json add error 'errorNoNft'
output "${_ERROR_}: $(get_text 'errorNoNft')!\\n"
fi
dns='smartdns.domainset'
fi
;;
esac
if [ "$(sanitize_dir "$compressed_cache_dir")" = '/' ]; then
compressed_cache_dir=''
elif [ -n "$(sanitize_dir "$compressed_cache_dir")" ]; then
compressed_cache_dir="$(sanitize_dir "$compressed_cache_dir")"
else
json add warning 'warningInvalidCompressedCacheDir' "$compressed_cache_dir"
output "${_WARNING_}: $(get_text 'warningInvalidCompressedCacheDir' "$compressed_cache_dir")!\\n"
compressed_cache_dir="/etc"
fi
dns_set_output_values "$dns"
[ "$dns" = 'dnsmasq.addnhosts' ] || rm -f "$dnsmasqAddnhostsFile" "$dnsmasqAddnhostsCache" "${compressed_cache_dir}/${dnsmasqAddnhostsGzip}"
[ "$dns" = 'dnsmasq.conf' ] || rm -f "$dnsmasqConfFile" "$dnsmasqConfCache" "${compressed_cache_dir}/${dnsmasqConfGzip}"
[ "$dns" = 'dnsmasq.ipset' ] || rm -f "$dnsmasqIpsetFile" "$dnsmasqIpsetCache" "${compressed_cache_dir}/${dnsmasqIpsetGzip}"
[ "$dns" = 'dnsmasq.nftset' ] || rm -f "$dnsmasqNftsetFile" "$dnsmasqNftsetCache" "${compressed_cache_dir}/${dnsmasqNftsetGzip}"
[ "$dns" = 'dnsmasq.servers' ] || rm -f "$dnsmasqServersFile" "$dnsmasqServersCache" "${compressed_cache_dir}/${dnsmasqServersGzip}"
[ "$dns" = 'smartdns.domainset' ] || rm -f "$smartdnsDomainSetFile" "$smartdnsDomainSetCache" "${compressed_cache_dir}/${smartdnsDomainSetGzip}" "$smartdnsDomainSetConfig"
[ "$dns" = 'smartdns.ipset' ] || rm -f "$smartdnsIpsetFile" "$smartdnsIpsetCache" "${compressed_cache_dir}/${smartdnsIpsetGzip}" "$smartdnsIpsetConfig"
[ "$dns" = 'smartdns.nftset' ] || rm -f "$smartdnsNftsetFile" "$smartdnsNftsetCache" "${compressed_cache_dir}/${smartdnsNftsetGzip}" "$smartdnsNftsetConfig"
[ "$dns" = 'unbound.adb_list' ] || rm -f "$unboundFile" "$unboundCache" "$unboundGzip"
for i in "$runningConfigFile" "$runningErrorFile" "$runningStatusFile" "$outputFile" "$outputCache" "$outputGzip" "$outputConfig"; do
[ -n "$i" ] || continue
if ! mkdir -p "${i%/*}"; then
if [ "$param" != 'quiet' ]; then
json add error 'errorOutputDirCreate' "$i"
output "${_ERROR_}: $(get_text 'errorOutputDirCreate' "$i")!\\n"
fi
fi
done
is_present 'gawk' && awk='gawk'
if ! is_present '/usr/libexec/grep-gnu' || ! is_present '/usr/libexec/sed-gnu' || \
! is_present '/usr/libexec/sort-coreutils' || ! is_present 'gawk'; then
local s
is_present 'gawk' || s="${s:+$s }gawk"
is_present '/usr/libexec/grep-gnu' || s="${s:+$s }grep"
is_present '/usr/libexec/sed-gnu' || s="${s:+$s }sed"
is_present '/usr/libexec/sort-coreutils' || s="${s:+$s }coreutils-sort"
if [ "$param" != 'quiet' ]; then
json add warning 'warningMissingRecommendedPackages' "$s"
output "${_WARNING_}: $(get_text 'warningMissingRecommendedPackages'), install them by running:\\n"
output "opkg update; opkg --force-overwrite install $s;\\n"
fi
fi
# Prefer curl because it supports the file:// scheme.
if is_present 'curl'; then
dl_command='curl --silent --insecure'
dl_command="${dl_command}${curl_additional_param:+ $curl_additional_param}"
dl_command="${dl_command}${curl_max_file_size:+ --max-filesize $curl_max_file_size}"
dl_command="${dl_command}${curl_retry:+ --retry $curl_retry}"
dl_command="${dl_command}${download_timeout:+ --connect-timeout $download_timeout}"
dl_flag='-o'
elif is_present '/usr/libexec/wget-ssl'; then
dl_command='/usr/libexec/wget-ssl --no-check-certificate -q'
dl_command="${dl_command}${download_timeout:+ --timeout $download_timeout}"
dl_flag="-O"
size_command='/usr/libexec/wget-ssl --no-check-certificate -q -O /dev/null --server-response'
size_command="${size_command}${download_timeout:+ --timeout $download_timeout}"
elif is_present wget && wget --version 2>/dev/null | grep -q "+https"; then
dl_command="wget --no-check-certificate -q"
dl_command="${dl_command}${download_timeout:+ --timeout $download_timeout}"
dl_flag="-O"
size_command='wget --no-check-certificate -q -O /dev/null --server-response'
size_command="${size_command}${download_timeout:+ --timeout $download_timeout}"
else
dl_command="uclient-fetch --no-check-certificate -q"
dl_command="${dl_command}${download_timeout:+ --timeout $download_timeout}"
dl_flag="-O"
fi
led="${led:+/sys/class/leds/$led}"
if curl --version 2>/dev/null | grep -q "Protocols: .*https.*" \
|| wget --version 2>/dev/null | grep -q "+ssl"; then
isSSLSupported=1
else
unset isSSLSupported
fi
config_load "$packageName"
config_foreach append_url 'file_url'
load_environment_flag=1
cache 'test' && return 0
cache 'test_gzip' && return 0
if [ "$param" = 'on_boot' ]; then
load_network "$param"
return "$?"
else
return 0
fi
}
resolver() {
_dnsmasq_instance_config() {
local cfg="$1" param="$2"
[ -s "/etc/config/dhcp" ] || return 0
case "$param" in
dnsmasq.addnhosts)
if [ "$(uci_get 'dhcp' "$cfg" 'serversfile')" = "$dnsmasqServersFile" ]; then
uci_remove 'dhcp' "$cfg" 'serversfile'
fi
uci_add_list_if_new 'dhcp' "$cfg" 'addnhosts' "$dnsmasqAddnhostsFile"
;;
cleanup|dnsmasq.conf|dnsmasq.ipset|dnsmasq.nftset|unbound.adb_list)
uci_remove_list 'dhcp' "$cfg" 'addnhosts' "$dnsmasqAddnhostsFile"
if [ "$(uci_get 'dhcp' "$cfg" 'serversfile')" = "$dnsmasqServersFile" ]; then
uci_remove 'dhcp' "$cfg" 'serversfile'
fi
;;
dnsmasq.servers)
uci_remove_list 'dhcp' "$cfg" 'addnhosts' "$dnsmasqAddnhostsFile"
if [ "$(uci_get 'dhcp' "$cfg" 'serversfile')" != "$dnsmasqServersFile" ]; then
uci_set 'dhcp' "$cfg" 'serversfile' "$dnsmasqServersFile"
fi
;;
esac
}
_smartdns_instance_config() {
[ -s "/etc/config/smartdns" ] || return 0
local cfg="$1" param="$2"
case "$param" in
cleanup)
uci_remove_list 'smartdns' "$cfg" 'conf_files' "$outputConfig"
rm -f "$outputConfig"
;;
smartdns.domainset)
{ echo "domain-set -name adblock-fast -file $outputFile"; \
echo "domain-rules /domain-set:adblock-fast/ -a #"; } > "$outputConfig"
uci_add_list_if_new 'smartdns' "$cfg" 'conf_files' "$outputConfig"
;;
smartdns.ipset)
{ echo "domain-set -name adblock-fast -file $outputFile"; \
echo "domain-rules /domain-set:adblock-fast/ -ipset adb"; } > "$outputConfig"
uci_add_list_if_new 'smartdns' "$cfg" 'conf_files' "$outputConfig"
;;
smartdns.nftset)
local nftset="#4:inet#fw4#adb4"
[ "$ipv6_enabled" -ne '0' ] && nftset="${nftset},#6:inet#fw4#adb6"
{ echo "domain-set -name adblock-fast -file $outputFile"; \
echo "domain-rules /domain-set:adblock-fast/ -nftset $nftset"; } > "$outputConfig"
uci_add_list_if_new 'smartdns' "$cfg" 'conf_files' "$outputConfig"
;;
esac
}
local param output_text i
case $1 in
cleanup)
rm -f "$dnsmasqAddnhostsFile" "$dnsmasqAddnhostsCache" "${compressed_cache_dir}/${dnsmasqAddnhostsGzip}"
rm -f "$dnsmasqConfFile" "$dnsmasqConfCache" "${compressed_cache_dir}/${dnsmasqConfGzip}"
rm -f "$dnsmasqIpsetFile" "$dnsmasqIpsetCache" "${compressed_cache_dir}/${dnsmasqIpsetGzip}"
rm -f "$dnsmasqNftsetFile" "$dnsmasqNftsetCache" "${compressed_cache_dir}/${dnsmasqNftsetGzip}"
rm -f "$dnsmasqServersFile" "$dnsmasqServersCache" "${compressed_cache_dir}/${dnsmasqServersGzip}"
rm -f "$smartdnsDomainSetFile" "$smartdnsDomainSetCache" "${compressed_cache_dir}/${smartdnsDomainSetGzip}" "$smartdnsDomainSetConfig"
rm -f "$smartdnsIpsetFile" "$smartdnsIpsetCache" "${compressed_cache_dir}/${smartdnsIpsetGzip}" "$smartdnsIpsetConfig"
rm -f "$smartdnsNftsetFile" "$smartdnsNftsetCache" "${compressed_cache_dir}/${smartdnsNftsetGzip}" "$smartdnsNftsetConfig"
rm -f "$unboundFile" "$unboundCache" "$unboundGzip"
if [ -s "/etc/config/dhcp" ]; then
config_load 'dhcp'
config_foreach _dnsmasq_instance_config 'dnsmasq' 'cleanup'
[ -n "$(uci_changes 'dhcp')" ] && uci_commit 'dhcp'
fi
if [ -s "/etc/config/smartdns" ]; then
config_load 'smartdns'
config_foreach _smartdns_instance_config 'smartdns' 'cleanup'
[ -n "$(uci_changes 'smartdns')" ] && uci_commit 'smartdns'
fi
;;
on_start)
if [ ! -s "$outputFile" ]; then
json set status 'statusFail'
json add error 'errorOutputFileCreate'
output "${_ERROR_}: $(get_text 'errorOutputFileCreate')!\\n"
return 1
fi
config_load 'dhcp'
if [ "$dnsmasq_instance" = "*" ]; then
config_foreach _dnsmasq_instance_config 'dnsmasq' "$dns"
elif [ -n "$dnsmasq_instance" ]; then
for i in $dnsmasq_instance; do
_dnsmasq_instance_config "@dnsmasq[$i]" "$dns" || _dnsmasq_instance_config "$i" "$dns"
done
fi
config_load 'smartdns'
if [ "$smartdns_instance" = "*" ]; then
config_foreach _smartdns_instance_config 'smartdns' "$dns"
elif [ -n "$smartdns_instance" ]; then
for i in $smartdns_instance; do
_smartdns_instance_config "@smartdns[$i]" "$dns" || _smartdns_instance_config "$i" "$dns"
done
fi
case "$dns" in
dnsmasq.*)
chmod 660 "$outputFile"
chown root:dnsmasq "$outputFile"
param='dnsmasq_restart'
output_text='Restarting dnsmasq'
;;
smartdns.*)
chmod 660 "$outputFile" "$outputConfig"
chown root:root "$outputFile" "$outputConfig"
param='smartdns_restart'
output_text='Restarting SmartDNS'
;;
unbound.*)
chmod 660 "$outputFile"
chown root:unbound "$outputFile"
param='unbound_restart'
output_text='Restarting Unbound'
;;
esac
if [ -n "$(uci_changes dhcp)" ]; then
uci_commit 'dhcp'
if ! str_contains "$param" 'dnsmasq_restart'; then
param="${param:+"$param; dnsmasq_restart"}"
output_text="${output_text}/dnsmasq"
fi
fi
if [ -n "$(uci_changes smartdns)" ]; then
uci_commit 'smartdns'
if ! str_contains "$param" 'smartdns_restart'; then
param="${param:+"$param; "}smartdns_restart"
output_text="${output_text}/smartDNS"
fi
fi
output 1 "$output_text "
output 2 "$output_text "
json set message "$output_text"
if eval "$param"; then
json set status 'statusSuccess'
led_on "$led"
output_okn
else
output_fail
json set status 'statusFail'
json add error 'errorDNSReload'
output "${_ERROR_}: $(get_text 'errorDNSReload')!\\n"
return 1
fi
;;
on_stop)
case "$dns" in
dnsmasq.*)
param='dnsmasq_restart'
;;
smartdns.*)
param='smartdns_restart'
;;
unbound.*)
param='unbound_restart'
;;
esac
if [ -n "$(uci_changes dhcp)" ]; then
uci_commit 'dhcp'
str_contains "$param" 'dnsmasq_restart' || param="${param:+"$param; dnsmasq_restart"}"
fi
if [ -n "$(uci_changes smartdns)" ]; then
uci_commit 'smartdns'
str_contains "$param" 'smartdns_restart' || param="${param:+"$param; "}smartdns_restart"