net/adblock-fast/files/etc/init.d/adblock-fast

   1 #!/bin/sh /etc/rc.common
   2 # Copyright 2023 MOSSDeF, Stan Grishin (stangri@melmac.ca)
   3 # shellcheck disable=SC1091,SC2015,SC2016,SC3037,SC3043,SC3045,SC3057,SC3060
   4
   5 # shellcheck disable=SC2034
   6 START=94
   7 # shellcheck disable=SC2034
   8 USE_PROCD=1
   9 LC_ALL=C
  10
  11 if type extra_command 1>/dev/null 2>&1; then
  12         extra_command 'allow' 'Allows domain in current block-list and config'
  13         extra_command 'check' 'Checks if specified domain is found in current block-list'
  14         extra_command 'dl' 'Force-downloads all enabled block-list'
  15         extra_command 'killcache' 'Delete all cached files'
  16         extra_command 'pause' 'Pauses AdBlocking for specified number of seconds (default: 60)'
  17         extra_command 'sizes' 'Displays the file-sizes of enabled block-lists'
  18         extra_command 'version' 'Show version information'
  19 else
  20 # shellcheck disable=SC2034
  21         EXTRA_COMMANDS='allow check dl killcache pause sizes status_service version'
  22 # shellcheck disable=SC2034
  23         EXTRA_HELP='    allow   Allows domain(s) in current block-list and config
  24         check   Checks if specified domain is found in current block-list
  25         dl      Force-downloads all enabled block-list
  26         pause   Pauses AdBlocking for specified number of seconds (default: 60)
  27         sizes   Displays the file-sizes of enabled block-lists'
  28 fi
  29
  30 readonly PKG_VERSION='dev-test'
  31 readonly packageName='adblock-fast'
  32 readonly serviceName="$packageName $PKG_VERSION"
  33 readonly packageConfigFile="/etc/config/${packageName}"
  34 readonly dnsmasqAddnhostsFile="/var/run/${packageName}/dnsmasq.addnhosts"
  35 readonly dnsmasqAddnhostsCache="/var/run/${packageName}/dnsmasq.addnhosts.cache"
  36 readonly dnsmasqAddnhostsGzip="${packageName}.dnsmasq.addnhosts.gz"
  37 readonly dnsmasqAddnhostsFilter='s|^|127.0.0.1 |;s|$||'
  38 readonly dnsmasqAddnhostsFilterIPv6='s|^|:: |;s|$||'
  39 readonly dnsmasqConfFile="/tmp/dnsmasq.d/${packageName}"
  40 readonly dnsmasqConfCache="/var/run/${packageName}/dnsmasq.conf.cache"
  41 readonly dnsmasqConfGzip="${packageName}.dnsmasq.conf.gz"
  42 readonly dnsmasqConfFilter='s|^|local=/|;s|$|/|'
  43 readonly dnsmasqIpsetFile="/tmp/dnsmasq.d/${packageName}.ipset"
  44 readonly dnsmasqIpsetCache="/var/run/${packageName}/dnsmasq.ipset.cache"
  45 readonly dnsmasqIpsetGzip="${packageName}.dnsmasq.ipset.gz"
  46 readonly dnsmasqIpsetFilter='s|^|ipset=/|;s|$|/adb|'
  47 readonly dnsmasqNftsetFile="/tmp/dnsmasq.d/${packageName}.nftset"
  48 readonly dnsmasqNftsetCache="/var/run/${packageName}/dnsmasq.nftset.cache"
  49 readonly dnsmasqNftsetGzip="${packageName}.dnsmasq.nftset.gz"
  50 readonly dnsmasqNftsetFilter='s|^|nftset=/|;s|$|/4#inet#fw4#adb4|'
  51 readonly dnsmasqNftsetFilterIPv6='s|^|nftset=/|;s|$|/4#inet#fw4#adb4,6#inet#fw4#adb6|'
  52 readonly dnsmasqServersFile="/var/run/${packageName}/dnsmasq.servers"
  53 readonly dnsmasqServersCache="/var/run/${packageName}/dnsmasq.servers.cache"
  54 readonly dnsmasqServersGzip="${packageName}.dnsmasq.servers.gz"
  55 readonly dnsmasqServersFilter='s|^|server=/|;s|$|/|'
  56 readonly unboundFile="/var/lib/unbound/adb_list.${packageName}"
  57 readonly unboundCache="/var/run/${packageName}/unbound.cache"
  58 readonly unboundGzip="${packageName}.unbound.gz"
  59 readonly unboundFilter='s|^|local-zone: "|;s|$|" static|'
  60 readonly A_TMP="/var/${packageName}.hosts.a.tmp"
  61 readonly B_TMP="/var/${packageName}.hosts.b.tmp"
  62 readonly jsonFile="/dev/shm/$packageName-status.json"
  63 readonly sharedMemoryError="/dev/shm/$packageName-error"
  64 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;/^$/d;/[^[:alnum:]_.-]/d;'
  65 readonly domainsFilter='/^#/d;s/[[:space:]]*#.*$//;s/[[:space:]]*$//;s/[[:cntrl:]]$//;/[[:space:]]/d;/[`~!@#\$%\^&\*()=+;:"'\'',<>?/\|[{}]/d;/]/d;/\./!d;/^$/d;/[^[:alnum:]_.-]/d;'
  66 readonly adBlockPlusFilter='/^#/d;/^!/d;s/[[:space:]]*#.*$//;s/^||//;s/\^$//;s/[[:space:]]*$//;s/[[:cntrl:]]$//;/[[:space:]]/d;/[`~!@#\$%\^&\*()=+;:"'\'',<>?/\|[{}]/d;/]/d;/\./!d;/^$/d;/[^[:alnum:]_.-]/d;'
  67 readonly dnsmasqFileFilter='\|^server=/[[:alnum:]_.-].*/|!d;s|server=/||;s|/.*$||'
  68 readonly dnsmasq2FileFilter='\|^local=/[[:alnum:]_.-].*/|!d;s|local=/||;s|/.*$||'
  69 readonly dnsmasq3FileFilter='\|^address=/[[:alnum:]_.-].*/|!d;s|address=/||;s|/.*$||'
  70 readonly _OK_='\033[0;32m\xe2\x9c\x93\033[0m'
  71 readonly _FAIL_='\033[0;31m\xe2\x9c\x97\033[0m'
  72 readonly __OK__='\033[0;32m[\xe2\x9c\x93]\033[0m'
  73 readonly __FAIL__='\033[0;31m[\xe2\x9c\x97]\033[0m'
  74 readonly _ERROR_='\033[0;31mERROR\033[0m'
  75 readonly _WARNING_='\033[0;33mWARNING\033[0m'
  76 # shellcheck disable=SC2155
  77 readonly ipset="$(command -v ipset)"
  78 # shellcheck disable=SC2155
  79 readonly nft="$(command -v nft)"
  80 readonly canaryDomainsMozilla='use-application-dns.net'
  81 readonly canaryDomainsiCloud='mask.icloud.com mask-h2.icloud.com'
  82
  83 dl_command=
  84 dl_flag=
  85 isSSLSupported=
  86 outputFilter=
  87 outputFilterIPv6=
  88 outputFile=
  89 outputGzip=
  90 outputCache=
  91 awk='awk'
  92 load_environment_flag=
  93 allowed_url=
  94 blocked_url=
  95
  96 debug() { local i j; for i in "$@"; do eval "j=\$$i"; echo "${i}: ${j} "; done; }
  97
  98 uci_add_list_if_new() {
  99         local PACKAGE="$1"
 100         local CONFIG="$2"
 101         local OPTION="$3"
 102         local VALUE="$4"
 103         local i
 104         [ -n "$PACKAGE" ] && [ -n "$CONFIG" ] && [ -n "$OPTION" ] && [ -n "$VALUE" ] || return 1
 105         for i in $(uci_get "$PACKAGE" "$CONFIG" "$OPTION"); do
 106                 [ "$i" = "$VALUE" ] && return 0
 107         done
 108         uci_add_list "$PACKAGE" "$CONFIG" "$OPTION" "$VALUE"
 109 }
 110 uci_changes() {
 111         local PACKAGE="$1"
 112         local CONFIG="$2"
 113         local OPTION="$3"
 114         /sbin/uci ${UCI_CONFIG_DIR:+-c $UCI_CONFIG_DIR} changes "$PACKAGE${CONFIG:+.$CONFIG}${OPTION:+.$OPTION}"
 115 }
 116
 117 ipset() { "$ipset" "$@" >/dev/null 2>&1; }
 118 nft() { "$nft" "$@" >/dev/null 2>&1; }
 119
 120 get_text() {
 121         local r
 122         case "$1" in
 123                 errorConfigValidationFail) r="$packageName config validation failed";;
 124                 errorServiceDisabled) r="$packageName is currently disabled";;
 125                 errorNoDnsmasqIpset)
 126                         r="dnsmasq ipset support is enabled in $packageName, but dnsmasq is either not installed or installed dnsmasq does not support ipset";;
 127                 errorNoIpset)
 128                         r="dnsmasq ipset support is enabled in $packageName, but ipset is either not installed or installed ipset does not support 'hash:net' type";;
 129                 errorNoDnsmasqNftset)
 130                         r="dnsmasq nft set support is enabled in $packageName, but dnsmasq is either not installed or installed dnsmasq does not support nft set";;
 131                 errorNoNft) r="dnsmasq nft sets support is enabled in $packageName, but nft is not installed";;
 132                 errorNoWanGateway) r="The ${serviceName} failed to discover WAN gateway";;
 133                 errorOutputDirCreate) r="failed to create directory for %s file";;
 134                 errorOutputFileCreate) r="failed to create $outputFile file";;
 135                 errorFailDNSReload) r="failed to restart/reload DNS resolver";;
 136                 errorSharedMemory) r="failed to access shared memory";;
 137                 errorSorting) r="failed to sort data file";;
 138                 errorOptimization) r="failed to optimize data file";;
 139                 errorAllowListProcessing) r="failed to process allow-list";;
 140                 errorDataFileFormatting) r="failed to format data file";;
 141                 errorMovingDataFile) r="failed to move data file '${A_TMP}' to '${outputFile}'";;
 142                 errorCreatingCompressedCache) r="failed to create compressed cache";;
 143                 errorRemovingTempFiles) r="failed to remove temporary files";;
 144                 errorRestoreCompressedCache) r="failed to unpack compressed cache";;
 145                 errorRestoreCache) r="failed to move '$outputCache' to '$outputFile'";;
 146                 errorOhSnap) r="failed to create block-list or restart DNS resolver";;
 147                 errorStopping) r="failed to stop $serviceName";;
 148                 errorDNSReload) r="failed to reload/restart DNS resolver";;
 149                 errorDownloadingConfigUpdate) r="failed to download Config Update file";;
 150                 errorDownloadingList) r="failed to download";;
 151                 errorParsingConfigUpdate) r="failed to parse Config Update file";;
 152                 errorParsingList) r="failed to parse";;
 153                 errorNoSSLSupport) r="no HTTPS/SSL support on device";;
 154                 errorCreatingDirectory) r="failed to create output/cache/gzip file directory";;
 155                 errorDetectingFileType) r="failed to detect format";;
 156                 errorNothingToDo) r="no blocked list URLs nor blocked-domains enabled";;
 157
 158                 statusNoInstall) r="$serviceName is not installed or not found";;
 159                 statusStopped) r="Stopped";;
 160                 statusStarting) r="Starting";;
 161                 statusRestarting) r="Restarting";;
 162                 statusForceReloading) r="Force Reloading";;
 163                 statusDownloading) r="Downloading";;
 164                 statusProcessing) r="Processing";;
 165                 statusError) r="Error";;
 166                 statusWarning) r="Warning";;
 167                 statusFail) r="Fail";;
 168                 statusSuccess) r="Success";;
 169
 170                 warningExternalDnsmasqConfig)
 171                         r="use of external dnsmasq config file detected, please set 'dns' option to 'dnsmasq.conf'";;
 172                 warningMissingRecommendedPackages) r="Some recommended packages are missing";;
 173                 warningInvalidCompressedCacheDir) r="invalid compressed cache directory '%s'";;
 174         esac
 175         echo "$r"
 176 }
 177
 178 output_ok() { output 1 "$_OK_"; output 2 "$__OK__\\n"; }
 179 output_okn() { output 1 "$_OK_\\n"; output 2 "$__OK__\\n"; }
 180 output_fail() { output 1 "$_FAIL_"; output 2 "$__FAIL__\\n"; }
 181 output_failn() { output 1 "$_FAIL_\\n"; output 2 "$__FAIL__\\n"; }
 182 str_replace() { printf "%b" "$1" | sed -e "s/$(printf "%b" "$2")/$(printf "%b" "$3")/g"; }
 183 str_contains() { test "$1" != "$(str_replace "$1" "$2" '')"; }
 184 is_greater() { test "$(printf '%s\n' "$@" | sort -V | head -n 1)" != "$1"; }
 185 is_greater_or_equal() { test "$(printf '%s\n' "$@" | sort -V | head -n 1)" = "$2"; }
 186 is_chaos_calmer() { ubus -S call system board | grep -q 'Chaos Calmer'; }
 187 led_on(){ if [ -n "${1}" ] && [ -e "${1}/trigger" ]; then echo 'default-on' > "${1}/trigger" 2>&1; fi; }
 188 led_off(){ if [ -n "${1}" ] &&  [ -e "${1}/trigger" ]; then echo 'none' > "${1}/trigger" 2>&1; fi; }
 189 dnsmasq_hup() { killall -q -s HUP dnsmasq; }
 190 dnsmasq_kill() { killall -q -s KILL dnsmasq; }
 191 dnsmasq_restart() { /etc/init.d/dnsmasq restart >/dev/null 2>&1; }
 192 unbound_restart() { /etc/init.d/unbound restart >/dev/null 2>&1; }
 193 is_present() { command -v "$1" >/dev/null 2>&1; }
 194 sanitize_dir() { [ -d "$(readlink -fn "$1")" ] && readlink -fn "$1"; }
 195
 196 output() {
 197 # Can take a single parameter (text) to be output at any verbosity
 198 # Or target verbosity level and text to be output at specifc verbosity
 199         local msg memmsg logmsg
 200         local sharedMemoryOutput="/dev/shm/$packageName-output"
 201         verbosity="${verbosity:-2}"
 202         if [ $# -ne 1 ]; then
 203                 if [ $((verbosity & $1)) -gt 0 ] || [ "$verbosity" = "$1" ]; then shift; else return 0; fi
 204         fi
 205         [ -t 1 ] && printf "%b" "$1"
 206         msg="${1//$serviceName /service }";
 207         if [ "$(printf "%b" "$msg" | wc -l)" -gt 0 ]; then
 208                 [ -s "$sharedMemoryOutput" ] && memmsg="$(cat "$sharedMemoryOutput")"
 209                 logmsg="$(printf "%b" "${memmsg}${msg}" | sed 's/\x1b\[[0-9;]*m//g')"
 210                 logger -t "${packageName:-service} [$$]" "$(printf "%b" "$logmsg")"
 211                 rm -f "$sharedMemoryOutput"
 212         else
 213                 printf "%b" "$msg" >> "$sharedMemoryOutput"
 214         fi
 215 }
 216
 217 load_network() {
 218         local param="$1"
 219         local i j wan_if wan_gw wan_proto
 220         local counter wan_if_timeout="$procd_boot_wan_timeout" wan_gw_timeout='5'
 221         counter=0
 222         while [ -z "$wan_if" ]; do
 223                 network_flush_cache
 224                 network_find_wan wan_if
 225                 if [ -n "$wan_if" ]; then
 226                         output "WAN interface found: '${wan_if}'.\\n"
 227                         break
 228                 fi
 229                 if [ "$counter" -gt "$wan_if_timeout" ]; then
 230                         output "WAN interface timeout, assuming 'wan'.\\n"
 231                         wan_if='wan'
 232                         break
 233                 fi
 234                 counter=$((counter+1))
 235                 output "Waiting to discover WAN Interface...\\n"
 236                 sleep 1
 237         done
 238
 239         counter=0
 240         wan_proto="$(uci -q get "network.${wan_if}.proto")"
 241         if [ "$wan_proto" = 'pppoe' ]; then
 242                 wan_gw_timeout=$((wan_gw_timeout+10))
 243         fi
 244         while [ "$counter" -le "$wan_gw_timeout" ]; do
 245                 network_flush_cache
 246                 network_get_gateway wan_gw "$wan_if"
 247                 if [ -n "$wan_gw" ]; then
 248                         output "WAN gateway found: '${wan_gw}.'\\n"
 249                         return 0
 250                 fi
 251                 counter=$((counter+1))
 252                 output "Waiting to discover $wan_if gateway...\\n"
 253                 sleep 1
 254         done
 255         json add error "errorNoWanGateway"
 256         output "${_ERROR_}: $(get_text 'errorNoWanGateway')!\\n"; return 1;
 257 }
 258
 259 append_url() {
 260         local cfg="$1" var="$2"
 261         local en action url
 262         config_get en "$cfg" enabled '1'
 263         config_get action "$cfg" action 'block'
 264         config_get url "$cfg" url
 265         if [ "$en" = '1' ]; then
 266                 if [ "$action" = 'allow' ]; then
 267                         allowed_url="${allowed_url:+$allowed_url }${url}"
 268                 else
 269                         blocked_url="${blocked_url:+$blocked_url }${url}"
 270                 fi
 271         fi
 272 }
 273
 274  detect_file_type() {
 275         local file="$1"
 276         if [ "$(head -1 "$file")" = '[Adblock Plus]' ] || \
 277                 grep -q '^||' "$file"; then
 278                 echo 'adblockplus'
 279         elif grep -q '^server=' "$file"; then
 280                 echo 'dnsmasq'
 281         elif grep -q '^local=' "$file"; then
 282                 echo 'dnsmasq2'
 283         elif grep -q '^address=' "$file"; then
 284                 echo 'dnsmasq3'
 285         elif grep -q '^0.0.0.0' "$file" || grep -q '^127.0.0.1' "$file"; then
 286                 echo 'hosts'
 287         elif [ -n "$(sed "$domainsFilter" "$file" | head -1)" ]; then
 288                 echo 'domains'
 289         fi
 290  }
 291 # detect_file_type() {
 292 #       local file="$1"
 293 #       if [ -n "$(sed "$adBlockPlusFilter" "$file" | head -1)" ]; then
 294 #               echo 'adblockplus'
 295 #       elif [ -n "$(sed "$dnsmasqFileFilter" "$file" | head -1)" ]; then
 296 #               echo 'dnsmasq'
 297 #       elif [ -n "$(sed "$dnsmasq2FileFilter" "$file" | head -1)" ]; then
 298 #               echo 'dnsmasq2'
 299 #       elif [ -n "$(sed "$hostsFilter" "$file" | head -1)" ]; then
 300 #               echo 'hosts'
 301 #       elif [ -n "$(sed "$domainsFilter" "$file" | head -1)" ]; then
 302 #               echo 'domains'
 303 #       fi
 304 # }
 305
 306 load_environment() {
 307         local i j
 308         local validation_result="$1" param="$2"
 309
 310         [ -z "$load_environment_flag" ] || return 0
 311
 312         if [ "$validation_result" != '0' ]; then
 313                 json add error "errorConfigValidationFail"
 314                 output "${_ERROR_}: $(get_text 'errorConfigValidationFail')!\\n"
 315                 output "Please check if the '$packageConfigFile' contains correct values for config options.\\n"
 316                 return 1
 317         fi
 318
 319         if [ "$enabled" -eq 0 ]; then
 320                 json add error "errorServiceDisabled"
 321                 output "${_ERROR_}: $(get_text 'errorServiceDisabled')!\\n"
 322                 output "Run the following commands before starting service again:\\n"
 323                 output "uci set ${packageName}.config.enabled='1'; uci commit $packageName;\\n"
 324                 return 1
 325         fi
 326
 327         if [ "$debug" -ne 0 ]; then
 328                 exec 1>>"/tmp/$packageName.log"
 329                 exec 2>&1
 330                 set -x
 331         fi
 332
 333         if [ -n "$dnsmasq_config_file_url" ]; then
 334                 case "$dns" in
 335                         dnsmasq.conf) :;;
 336                         *)
 337                                 if [ "$param" != 'quiet' ]; then
 338                                         json add warning "warningExternalDnsmasqConfig"
 339                                         output "${_WARNING_}: $(get_text 'warningExternalDnsmasqConfig')!\\n"
 340                                 fi
 341                         ;;
 342                 esac
 343         fi
 344
 345         case "$dns" in
 346                 dnsmasq.addnhosts|dnsmasq.conf|dnsmasq.ipset|dnsmasq.nftset|dnsmasq.servers)
 347                         if dnsmasq -v 2>/dev/null | grep -q 'no-IDN' || ! dnsmasq -v 2>/dev/null | grep -q -w 'IDN'; then
 348                                 allow_non_ascii=0
 349                         fi
 350                 ;;
 351                 unbound.adb_list)
 352                         allow_non_ascii=1;;
 353         esac
 354
 355         case "$dns" in
 356                 dnsmasq.ipset)
 357                         if dnsmasq -v 2>/dev/null | grep -q 'no-ipset' || ! dnsmasq -v 2>/dev/null | grep -q -w 'ipset'; then
 358                                 if [ "$param" != 'quiet' ]; then
 359                                         json add error "errorNoDnsmasqIpset"
 360                                         output "${_ERROR_}: $(get_text 'errorNoDnsmasqIpset')!\\n"
 361                                 fi
 362                                 dns='dnsmasq.servers'
 363                         fi
 364                         if ! ipset help hash:net; then
 365                                 if [ "$param" != 'quiet' ]; then
 366                                         json add error "errorNoIpset"
 367                                         output "${_ERROR_}: $(get_text 'errorNoIpset')!\\n"
 368                                 fi
 369                                 dns='dnsmasq.servers'
 370                         fi
 371                 ;;
 372                 dnsmasq.nftset)
 373                         if dnsmasq -v 2>/dev/null | grep -q 'no-nftset' || ! dnsmasq -v 2>/dev/null | grep -q -w 'nftset'; then
 374                                 if [ "$param" != 'quiet' ]; then
 375                                         json add error "errorNoDnsmasqNftset"
 376                                         output "${_ERROR_}: $(get_text 'errorNoDnsmasqNftset')!\\n"
 377                                 fi
 378                                 dns='dnsmasq.servers'
 379                         fi
 380                         if [ -z "$nft" ]; then
 381                                 if [ "$param" != 'quiet' ]; then
 382                                         json add error "errorNoNft"
 383                                         output "${_ERROR_}: $(get_text 'errorNoNft')!\\n"
 384                                 fi
 385                                 dns='dnsmasq.servers'
 386                         fi
 387                 ;;
 388         esac
 389
 390         if [ "$(sanitize_dir "$compressed_cache_dir")" = '/' ]; then
 391                 compressed_cache_dir=''
 392         elif [ -n "$(sanitize_dir "$compressed_cache_dir")" ]; then
 393                 compressed_cache_dir="$(sanitize_dir "$compressed_cache_dir")"
 394         else
 395                 json add warning 'warningInvalidCompressedCacheDir' "$compressed_cache_dir"
 396                 compressed_cache_dir="/etc"
 397         fi
 398
 399         case "$dns" in
 400                 dnsmasq.addnhosts)
 401                         outputFilter="$dnsmasqAddnhostsFilter"
 402                         outputFile="$dnsmasqAddnhostsFile"
 403                         outputCache="$dnsmasqAddnhostsCache"
 404                         outputGzip="${compressed_cache_dir}/${dnsmasqAddnhostsGzip}"
 405                         if [ "$ipv6_enabled" -ne 0 ]; then
 406                                 outputFilterIPv6="$dnsmasqAddnhostsFilterIPv6"
 407                         fi
 408                         rm -f "$dnsmasqConfFile" "$dnsmasqConfCache" "${compressed_cache_dir}/${dnsmasqConfGzip}"
 409                         rm -f "$dnsmasqIpsetFile" "$dnsmasqIpsetCache" "${compressed_cache_dir}/${dnsmasqIpsetGzip}"
 410                         rm -f "$dnsmasqNftsetFile" "$dnsmasqNftsetCache" "${compressed_cache_dir}/${dnsmasqNftsetGzip}"
 411                         rm -f "$dnsmasqServersFile" "$dnsmasqServersCache" "${compressed_cache_dir}/${dnsmasqServersGzip}"
 412                         rm -f "$unboundFile" "$unboundCache" "$unboundGzip"
 413                 ;;
 414                 dnsmasq.conf)
 415                         outputFilter="$dnsmasqConfFilter"
 416                         outputFile="$dnsmasqConfFile"
 417                         outputCache="$dnsmasqConfCache"
 418                         outputGzip="${compressed_cache_dir}/${dnsmasqConfGzip}"
 419                         rm -f "$dnsmasqAddnhostsFile" "$dnsmasqAddnhostsCache" "${compressed_cache_dir}/${dnsmasqAddnhostsGzip}"
 420                         rm -f "$dnsmasqIpsetFile" "$dnsmasqIpsetCache" "${compressed_cache_dir}/${dnsmasqIpsetGzip}"
 421                         rm -f "$dnsmasqNftsetFile" "$dnsmasqNftsetCache" "${compressed_cache_dir}/${dnsmasqNftsetGzip}"
 422                         rm -f "$dnsmasqServersFile" "$dnsmasqServersCache" "${compressed_cache_dir}/${dnsmasqServersGzip}"
 423                         rm -f "$unboundFile" "$unboundCache" "$unboundGzip"
 424                 ;;
 425                 dnsmasq.ipset)
 426                         outputFilter="$dnsmasqIpsetFilter"
 427                         outputFile="$dnsmasqIpsetFile"
 428                         outputCache="$dnsmasqIpsetCache"
 429                         outputGzip="${compressed_cache_dir}/${dnsmasqIpsetGzip}"
 430                         rm -f "$dnsmasqAddnhostsFile" "$dnsmasqAddnhostsCache" "${compressed_cache_dir}/${dnsmasqAddnhostsGzip}"
 431                         rm -f "$dnsmasqConfFile" "$dnsmasqConfCache" "${compressed_cache_dir}/${dnsmasqConfGzip}"
 432                         rm -f "$dnsmasqNftsetFile" "$dnsmasqNftsetCache" "${compressed_cache_dir}/${dnsmasqNftsetGzip}"
 433                         rm -f "$dnsmasqServersFile" "$dnsmasqServersCache" "${compressed_cache_dir}/${dnsmasqServersGzip}"
 434                         rm -f "$unboundFile" "$unboundCache" "$unboundGzip"
 435                 ;;
 436                 dnsmasq.nftset)
 437                         if [ "$ipv6_enabled" -ne 0 ]; then
 438                                 outputFilter="$dnsmasqNftsetFilterIPv6"
 439                         else
 440                                 outputFilter="$dnsmasqNftsetFilter"
 441                         fi
 442                         outputFile="$dnsmasqNftsetFile"
 443                         outputCache="$dnsmasqNftsetCache"
 444                         outputGzip="${compressed_cache_dir}/${dnsmasqNftsetGzip}"
 445                         rm -f "$dnsmasqAddnhostsFile" "$dnsmasqAddnhostsCache" "${compressed_cache_dir}/${dnsmasqAddnhostsGzip}"
 446                         rm -f "$dnsmasqConfFile" "$dnsmasqConfCache" "${compressed_cache_dir}/${dnsmasqConfGzip}"
 447                         rm -f "$dnsmasqIpsetFile" "$dnsmasqIpsetCache" "${compressed_cache_dir}/${dnsmasqIpsetGzip}"
 448                         rm -f "$dnsmasqServersFile" "$dnsmasqServersCache" "${compressed_cache_dir}/${dnsmasqServersGzip}"
 449                         rm -f "$unboundFile" "$unboundCache" "$unboundGzip"
 450                 ;;
 451                 dnsmasq.servers)
 452                         outputFilter="$dnsmasqServersFilter"
 453                         outputFile="$dnsmasqServersFile"
 454                         outputCache="$dnsmasqServersCache"
 455                         outputGzip="${compressed_cache_dir}/${dnsmasqServersGzip}"
 456                         rm -f "$dnsmasqAddnhostsFile" "$dnsmasqAddnhostsCache" "${compressed_cache_dir}/${dnsmasqAddnhostsGzip}"
 457                         rm -f "$dnsmasqConfFile" "$dnsmasqConfCache" "${compressed_cache_dir}/${dnsmasqConfGzip}"
 458                         rm -f "$dnsmasqIpsetFile" "$dnsmasqIpsetCache" "${compressed_cache_dir}/${dnsmasqIpsetGzip}"
 459                         rm -f "$dnsmasqNftsetFile" "$dnsmasqNftsetCache" "${compressed_cache_dir}/${dnsmasqNftsetGzip}"
 460                         rm -f "$unboundFile" "$unboundCache" "$unboundGzip"
 461                 ;;
 462                 unbound.adb_list)
 463                         outputFilter="$unboundFilter"
 464                         outputFile="$unboundFile"
 465                         outputCache="$unboundCache"
 466                         outputGzip="$unboundGzip"
 467                         rm -f "$dnsmasqAddnhostsFile" "$dnsmasqAddnhostsCache" "${compressed_cache_dir}/${dnsmasqAddnhostsGzip}"
 468                         rm -f "$dnsmasqConfFile" "$dnsmasqConfCache" "${compressed_cache_dir}/${dnsmasqConfGzip}"
 469                         rm -f "$dnsmasqIpsetFile" "$dnsmasqIpsetCache" "${compressed_cache_dir}/${dnsmasqIpsetGzip}"
 470                         rm -f "$dnsmasqNftsetFile" "$dnsmasqNftsetCache" "${compressed_cache_dir}/${dnsmasqNftsetGzip}"
 471                         rm -f "$dnsmasqServersFile" "$dnsmasqServersCache" "${compressed_cache_dir}/${dnsmasqServersGzip}"
 472                 ;;
 473         esac
 474
 475         for i in "$jsonFile" "$outputFile" "$outputCache" "$outputGzip"; do
 476                 if ! mkdir -p "$(dirname "$i")"; then
 477                         if [ "$param" != 'quiet' ]; then
 478                                 json add error "errorOutputDirCreate" "$i"
 479                                 output "${_ERROR_}: $(get_text 'errorOutputDirCreate' "$i")!\\n"
 480                         fi
 481                 fi
 482         done
 483
 484         is_present 'gawk' && awk='gawk'
 485         if ! is_present '/usr/libexec/grep-gnu' || ! is_present '/usr/libexec/sed-gnu' || \
 486                 ! is_present '/usr/libexec/sort-coreutils' || ! is_present 'gawk'; then
 487                         local s="opkg update; opkg --force-overwrite install"
 488                         is_present 'gawk' || s="$s gawk"
 489                         is_present '/usr/libexec/grep-gnu' || s="$s grep"
 490                         is_present '/usr/libexec/sed-gnu' || s="$s sed"
 491                         is_present '/usr/libexec/sort-coreutils' || s="$s coreutils-sort"
 492                         if [ "$param" != 'quiet' ]; then
 493                                 json add warning "warningMissingRecommendedPackages" "${i}"
 494                                 output "${_WARNING_}: $(get_text 'warningMissingRecommendedPackages'), install them by running:\\n"
 495                                 output "$s;\\n"
 496                         fi
 497         fi
 498         # Prefer curl because it supports the file:// scheme.
 499         if is_present 'curl'; then
 500                 dl_command='curl --silent --insecure'
 501                 dl_command="${dl_command}${curl_additional_param:+ $curl_additional_param}"
 502                 dl_command="${dl_command}${curl_max_file_size:+ --max-filesize $curl_max_file_size}"
 503                 dl_command="${dl_command}${curl_retry:+ --retry $curl_retry}"
 504                 dl_command="${dl_command}${download_timeout:+ --connect-timeout $download_timeout}"
 505                 dl_flag='-o'
 506         elif is_present '/usr/libexec/wget-ssl'; then
 507                 dl_command='/usr/libexec/wget-ssl --no-check-certificate -q'
 508                 dl_command="${dl_command}${download_timeout:+ --timeout $download_timeout}"
 509                 dl_flag="-O"
 510                 size_command='/usr/libexec/wget-ssl --no-check-certificate -q -O /dev/null --server-response'
 511                 size_command="${size_command}${download_timeout:+ --timeout $download_timeout}"
 512         elif is_present wget && wget --version 2>/dev/null | grep -q "+https"; then
 513                 dl_command="wget --no-check-certificate -q"
 514                 dl_command="${dl_command}${download_timeout:+ --timeout $download_timeout}"
 515                 dl_flag="-O"
 516                 size_command='wget --no-check-certificate -q -O /dev/null --server-response'
 517                 size_command="${size_command}${download_timeout:+ --timeout $download_timeout}"
 518         else
 519                 dl_command="uclient-fetch --no-check-certificate -q"
 520                 dl_command="${dl_command}${download_timeout:+ --timeout $download_timeout}"
 521                 dl_flag="-O"
 522         fi
 523         led="${led:+/sys/class/leds/$led}"
 524         if curl --version 2>/dev/null | grep -q "https" \
 525                 || wget --version 2>/dev/null | grep -q "+https" \
 526                 || grep -q "libustream-mbedtls" /usr/lib/opkg/status \
 527                 || grep -q "libustream-openssl" /usr/lib/opkg/status \
 528                 || grep -q "libustream-wolfssl" /usr/lib/opkg/status; then
 529                 isSSLSupported=1
 530         else
 531                 unset isSSLSupported
 532         fi
 533         config_load "$packageName"
 534         config_foreach append_url 'file_url'
 535         load_environment_flag=1
 536         cache 'test' && return 0
 537         cache 'test_gzip' && return 0
 538         if [ "$param" = 'on_boot' ]; then
 539                 load_network "$param"
 540                 return "$?"
 541         else
 542                 return 0
 543         fi
 544 }
 545
 546 get_url_filesize() {
 547         local url="$1" size size_command
 548         [ -n "$url" ] || return 0
 549         is_present 'curl' || return 0
 550         size_command='curl --silent --insecure --fail --head --request GET'
 551         size="$($size_command "$url" | grep -Po '^[cC]ontent-[lL]ength: \K\w+')"
 552         echo -en "$size"
 553 }
 554
 555 get_local_filesize() {
 556         local file="$1" size
 557         [ -f "$file" ] || return 0
 558         if is_present stat; then
 559                 size="$(stat -c%s "$file")"
 560         elif is_present wc; then
 561                 size="$(wc -c < "$file")"
 562         fi
 563         echo -en "$size"
 564 }
 565
 566 resolver_config() {
 567         local cfg="$1" param="$2"
 568         case "$param" in
 569                 dnsmasq.addnhosts)
 570                         if [ "$(uci_get 'dhcp' "$cfg" 'serversfile')" = "$dnsmasqServersFile" ]; then
 571                                 uci_remove 'dhcp' "$cfg" 'serversfile'
 572                         fi
 573                         uci_add_list_if_new 'dhcp' "$cfg" 'addnhosts' "$dnsmasqAddnhostsFile"
 574                 ;;
 575                 cleanup|dnsmasq.conf|dnsmasq.ipset|dnsmasq.nftset|unbound.adb_list)
 576                         uci_remove_list 'dhcp' "$cfg" 'addnhosts' "$dnsmasqAddnhostsFile"
 577                         if [ "$(uci_get 'dhcp' "$cfg" 'serversfile')" = "$dnsmasqServersFile" ]; then
 578                                 uci_remove 'dhcp' "$cfg" 'serversfile'
 579                         fi
 580                 ;;
 581                 dnsmasq.servers)
 582                         uci_remove_list 'dhcp' "$cfg" 'addnhosts' "$dnsmasqAddnhostsFile"
 583                         if [ "$(uci_get 'dhcp' "$cfg" 'serversfile')" != "$dnsmasqServersFile" ]; then
 584                                 uci_set 'dhcp' "$cfg" 'serversfile' "$dnsmasqServersFile"
 585                         fi
 586                 ;;
 587         esac
 588 }
 589
 590 dns() {
 591         local param output_text i
 592         case $1 in
 593                 on_start)
 594                         if [ ! -s "$outputFile" ]; then
 595                                 json set status "statusFail"
 596                                 json add error "errorOutputFileCreate"
 597                                 output "${_ERROR_}: $(get_text 'errorOutputFileCreate')!\\n"
 598                                 return 1
 599                         fi
 600
 601                         config_load 'dhcp'
 602                         if [ "$dnsmasq_instance" = "*" ]; then
 603                                 config_foreach resolver_config 'dnsmasq' "$dns"
 604                         elif [ -n "$dnsmasq_instance" ]; then
 605                                 for i in $dnsmasq_instance; do
 606                                         resolver_config "@dnsmasq[$i]" "$dns" || resolver_config "$i" "$dns"
 607                                 done
 608                         fi
 609
 610                         case "$dns" in
 611                                 dnsmasq.addnhosts|dnsmasq.servers)
 612                                         chmod 660 "$outputFile"
 613                                         chown root:dnsmasq "$outputFile"
 614                                         param=dnsmasq_restart
 615                                         output_text='Reloading dnsmasq'
 616                                 ;;
 617                                 dnsmasq.conf|dnsmasq.ipset|dnsmasq.nftset)
 618                                         chmod 660 "$outputFile"
 619                                         chown root:dnsmasq "$outputFile"
 620                                         param=dnsmasq_restart
 621                                         output_text='Restarting dnsmasq'
 622                                 ;;
 623                                 unbound.adb_list)
 624                                         param=unbound_restart
 625                                         output_text='Restarting Unbound'
 626                                 ;;
 627                         esac
 628
 629                         if [ -n "$(uci_changes dhcp)" ]; then
 630                                 uci_commit dhcp
 631                                 if [ "$param" = 'unbound_restart' ]; then
 632                                         param='dnsmasq_restart; unbound_restart;'
 633                                         output_text='Restarting Unbound/dnsmasq'
 634                                 else
 635                                         param=dnsmasq_restart
 636                                         output_text='Restarting dnsmasq'
 637                                 fi
 638                         fi
 639                         output 1 "$output_text "
 640                         output 2 "$output_text "
 641                         json set message "$output_text"
 642                         if eval "$param"; then
 643                                 json set status "statusSuccess"
 644                                 led_on "$led"
 645                                 output_okn
 646                         else
 647                                 output_fail
 648                                 json set status "statusFail"
 649                                 json add error "errorDNSReload"
 650                                 output "${_ERROR_}: $(get_text 'errorDNSReload')!\\n"
 651                                 return 1
 652                         fi
 653                 ;;
 654                 on_stop)
 655                         case "$dns" in
 656                                 dnsmasq.addnhosts|dnsmasq.servers)
 657                                         param=dnsmasq_restart
 658                                 ;;
 659                                 dnsmasq.conf|dnsmasq.ipset|dnsmasq.nftset)
 660                                         param=dnsmasq_restart
 661                                 ;;
 662                                 unbound.adb_list)
 663                                         param=unbound_restart
 664                                 ;;
 665                         esac
 666                         if [ -n "$(uci_changes dhcp)" ]; then
 667                                 uci_commit dhcp
 668                                 if [ "$param" = 'unbound_restart' ]; then
 669                                         param='dnsmasq_restart; unbound_restart;'
 670                                 else
 671                                         param=dnsmasq_restart
 672                                 fi
 673                         fi
 674                         eval "$param"
 675                         return $?
 676                 ;;
 677                 quiet)
 678                         case "$dns" in
 679                                 dnsmasq.addnhosts|dnsmasq.conf|dnsmasq.ipset|dnsmasq.nftset|dnsmasq.servers)
 680                                         param=dnsmasq_restart
 681                                 ;;
 682                                 unbound.adb_list)
 683                                         param=unbound_restart
 684                                 ;;
 685                         esac
 686                         eval "$param"
 687                         return $?
 688                 ;;
 689         esac
 690 }
 691
 692 json() {
 693 # shellcheck disable=SC2034
 694         local action="$1" param="$2" value="$3"
 695         shift 3
 696 # shellcheck disable=SC2124
 697         local extras="$@" line
 698         local status message error stats
 699         local reload restart curReload curRestart ret i
 700         if [ -s "$jsonFile" ]; then
 701                 json_load_file "$jsonFile" 2>/dev/null
 702                 json_select 'data' 2>/dev/null
 703                 for i in status message error stats reload restart; do
 704                         json_get_var "$i" "$i" 2>/dev/null
 705                 done
 706         fi
 707         case "$action" in
 708                 get)
 709                         case "$param" in
 710                                 triggers)
 711                                         curReload="$parallel_downloads $debug $download_timeout \
 712                                                 $allowed_domain $blocked_domain $allowed_url $blocked_url $dns \
 713                                                 $config_update_enabled $config_update_url $dnsmasq_config_file_url \
 714                                                 $curl_additional_param $curl_max_file_size $curl_retry"
 715                                         curRestart="$compressed_cache $compressed_cache_dir $force_dns $led \
 716                                                 $force_dns_port"
 717                                         if [ ! -s "$jsonFile" ]; then
 718                                                 ret='on_boot'
 719                                         elif [ "$curReload" != "$reload" ]; then
 720                                                 ret='download'
 721                                         elif [ "$curRestart" != "$restart" ]; then
 722                                                 ret='restart'
 723                                         fi
 724                                         printf "%b" "$ret"
 725                                         return;;
 726                                 *)
 727                                         printf "%b" "$(eval echo "\$$param")"; return;;
 728                         esac
 729                 ;;
 730                 add)
 731                         line="$(eval echo "\$$param")"
 732                         eval "$param"='${line:+$line }${value}${extras:+|$extras}'
 733                 ;;
 734                 del)
 735                         case "$param" in
 736                                 all)
 737                                         unset status message error stats;;
 738                                 triggers)
 739                                         unset reload restart;;
 740                                 *)
 741                                         unset "$param";;
 742                         esac
 743                 ;;
 744                 set)
 745                         case "$param" in
 746                                 triggers)
 747                                         reload="$parallel_downloads $debug $download_timeout \
 748                                                 $allowed_domain $blocked_domain $allowed_url $blocked_url $dns \
 749                                                 $config_update_enabled $config_update_url $dnsmasq_config_file_url \
 750                                                 $curl_additional_param $curl_max_file_size $curl_retry"
 751                                         restart="$compressed_cache $compressed_cache_dir $force_dns $led \
 752                                                 $force_dns_port"
 753                                 ;;
 754                                 *)
 755                                         eval "$param"='${value}${extras:+|$extras}';;
 756                         esac
 757                 ;;
 758         esac
 759         json_init
 760         json_add_object 'data'
 761         json_add_string version "$PKG_VERSION"
 762         json_add_string status "$status"
 763         json_add_string message "$message"
 764         json_add_string error "$error"
 765         json_add_string stats "$stats"
 766         json_add_string reload "$reload"
 767         json_add_string restart "$restart"
 768         json_close_object
 769         mkdir -p "$(dirname "$jsonFile")"
 770         json_dump > "$jsonFile"
 771         sync
 772 }
 773
 774 cache() {
 775         local R_TMP
 776         case "$1" in
 777                 create|backup)
 778                         [ -s "$outputFile" ] && { mv -f "$outputFile" "$outputCache"; } >/dev/null 2>/dev/null
 779                         return $?
 780                 ;;
 781                 restore|use)
 782                         [ -s "$outputCache" ] && mv "$outputCache" "$outputFile" >/dev/null 2>/dev/null
 783                         return $?
 784                 ;;
 785                 test)
 786                         [ -s "$outputCache" ]
 787                         return $?
 788                 ;;
 789                 test_gzip)
 790                         [ -s "$outputGzip" ] && gzip -t -c "$outputGzip"
 791                         return $?
 792                 ;;
 793                 create_gzip)
 794                         rm -f "$outputGzip" >/dev/null 2>/dev/null
 795                         R_TMP="$(mktemp -u -q -t ${packageName}_tmp.XXXXXXXX)"
 796                         if gzip < "$outputFile" > "$R_TMP"; then
 797                                 if mv "$R_TMP" "$outputGzip"; then
 798                                         rm -f "$R_TMP"
 799                                         return 0
 800                                 else
 801                                         rm -f "$R_TMP"
 802                                         return 1
 803                                 fi
 804                         else
 805                                 return 1
 806                         fi
 807                 ;;
 808                 expand|unpack|unpack_gzip)
 809                         [ -s "$outputGzip" ] && gzip -dc < "$outputGzip" > "$outputCache"
 810                         return $?
 811                 ;;
 812         esac
 813 }
 814
 815 _process_file_url() {
 816         if [ "$2" != '0' ]; then
 817                 json add error "errorConfigValidationFail"
 818                 output "${_ERROR_}: $(get_text 'errorConfigValidationFail')!\\n"
 819                 output "Please check if the '$packageConfigFile' contains correct values for config options.\\n"
 820         fi
 821         if [ "$parallel_downloads" -gt 0 ]; then
 822                 process_file_url "$1" &
 823         else
 824                 process_file_url "$1"
 825         fi
 826 }
 827
 828 process_file_url() {
 829         local cfg="$1" new_size
 830         local label type D_TMP R_TMP filter
 831         if [ -z "$cfg" ] || [ -n "${2}${3}" ]; then
 832                 url="$2"
 833                 action="$3"
 834         fi
 835
 836         [ "$enabled" = '1' ] || return 0
 837         [ -n "$url" ] || return 1
 838
 839         label="${url##*//}"
 840         label="${label%%/*}"
 841         label="File: $label"
 842         case "$action" in
 843                 allow) type='Allowed'; D_TMP="$A_TMP"
 844                 ;;
 845                 block) type='Blocked'; D_TMP="$B_TMP"
 846                 ;;
 847                 file) type='File'; D_TMP="$B_TMP"
 848                 ;;
 849         esac
 850         if [ "${1:0:5}" = "https" ] && [ -z "$isSSLSupported" ]; then
 851                 output 1 "$_FAIL_"
 852                 output 2 "[DL] $type $label $__FAIL__\\n"
 853                 echo "errorNoSSLSupport|${1}" >> "$sharedMemoryError"
 854                 return 0
 855         fi
 856         while [ -z "$R_TMP" ] || [ -e "$R_TMP" ]; do
 857                 R_TMP="$(mktemp -u -q -t ${packageName}_tmp.XXXXXXXX)"
 858         done
 859         if [ -z "$url" ] || ! $dl_command "$url" "$dl_flag" "$R_TMP" 2>/dev/null || \
 860                 [ ! -s "$R_TMP" ]; then
 861                 output 1 "$_FAIL_"
 862                 output 2 "[DL] $type $label $__FAIL__\\n"
 863                 echo "errorDownloadingList|${url}" >> "$sharedMemoryError"
 864         else
 865                 [ -n "$cfg" ] && new_size="$(get_local_filesize "$R_TMP")"
 866                 if [ -n "$new_size" ] && [ "$size" != "$new_size" ]; then
 867                         uci set "${packageName}.${cfg}.size=$size"
 868                 fi
 869                 format="$(detect_file_type "$R_TMP")"
 870                 case "$format" in
 871                         adblockplus) filter="$adBlockPlusFilter";;
 872                         dnsmasq) filter="$dnsmasqFileFilter";;
 873                         dnsmasq2) filter="$dnsmasq2FileFilter";;
 874                         dnsmasq3) filter="$dnsmasq3FileFilter";;
 875                         domains) filter="$domainsFilter";;
 876                         hosts) filter="$hostsFilter";;
 877                         *)
 878                                 output 1 "$_FAIL_"
 879                                 output 2 "[DL] $type $label $__FAIL__\\n"
 880                                 echo "errorDetectingFileType|${url}" >> "$sharedMemoryError"
 881                                 rm -f "$R_TMP"
 882                                 return 0
 883                         ;;
 884                 esac
 885                 if [ -n "$filter" ] && [ "$action" != 'file' ]; then
 886                         sed -i "$filter" "$R_TMP"
 887                 fi
 888                 if [ ! -s "$R_TMP" ]; then
 889                         output 1 "$_FAIL_"
 890                         output 2 "[DL] $type $label ($format) $__FAIL__\\n"
 891                         echo "errorParsingList|${url}" >> "$sharedMemoryError"
 892                 else
 893                         cat "${R_TMP}" >> "$D_TMP"
 894                         output 1 "$_OK_"
 895                         output 2 "[DL] $type $label ($format) $__OK__\\n"
 896                 fi
 897         fi
 898         rm -f "$R_TMP"
 899         return 0
 900 }
 901
 902 download_dnsmasq_file() {
 903         local hf allow_filter j=0 R_TMP
 904
 905         json set message "$(get_text "statusDownloading")..."
 906         json set status "statusDownloading"
 907
 908         rm -f "$A_TMP" "$B_TMP" "$outputFile" "$outputCache" "$outputGzip"
 909         if [ "$($awk '/^MemFree/ {print int($2/1000)}' "/proc/meminfo")" -lt 32 ]; then
 910                 output 3 'Low free memory, restarting resolver '
 911                 if dns 'quiet'; then
 912                         output_okn
 913                 else
 914                         output_failn
 915                 fi
 916         fi
 917         touch $A_TMP; touch $B_TMP;
 918         output 1 'Downloading dnsmasq file '
 919         rm -f "$sharedMemoryError"
 920         process_file_url '' "$dnsmasq_config_file_url" 'file'
 921         if [ -s "$sharedMemoryError" ]; then
 922                 while IFS= read -r line; do
 923                         json add error "$line"
 924                 done < "$sharedMemoryError"
 925                 rm -f "$sharedMemoryError"
 926         fi
 927         output 2 'Moving dnsmasq file '
 928         if mv "$B_TMP" "$outputFile"; then
 929                 output 2 "$__OK__\\n"
 930         else
 931                 output 2 "$__FAIL__\\n"
 932                 json add error "errorMovingDataFile"
 933         fi
 934         output 1 '\n'
 935 }
 936
 937 download_lists() {
 938         local hf allow_filter j=0 R_TMP
 939
 940         json set message "$(get_text "statusDownloading")..."
 941         json set status "statusDownloading"
 942
 943         rm -f "$A_TMP" "$B_TMP" "$outputFile" "$outputCache" "$outputGzip"
 944         if [ "$($awk '/^MemFree/ {print int($2/1000)}' "/proc/meminfo")" -lt 32 ]; then
 945                 output 3 'Low free memory, restarting resolver '
 946                 if dns 'quiet'; then
 947                         output_okn
 948                 else
 949                         output_failn
 950                 fi
 951         fi
 952         touch $A_TMP; touch $B_TMP;
 953         output 1 'Downloading lists '
 954         rm -f "$sharedMemoryError"
 955         config_load "$packageName"
 956         config_foreach load_validate_file_url_section 'file_url' _process_file_url
 957         wait
 958         if [ -n "$(uci changes "$packageName")" ]; then
 959                 output 2 "Saving updated file size(s) "
 960                 uci commit "$packageName" && output_okn || output_failn
 961         fi
 962         output 1 '\n'
 963
 964         if [ -s "$sharedMemoryError" ]; then
 965                 while IFS= read -r line; do
 966                         json add error "$line"
 967                 done < "$sharedMemoryError"
 968                 rm -f "$sharedMemoryError"
 969         fi
 970
 971         if [ "$canary_domains_icloud" -ne 0 ]; then
 972                 canaryDomains="${canaryDomains:+$canaryDomains }${canaryDomainsiCloud}"
 973         fi
 974         if [ "$canary_domains_mozilla" -ne 0 ]; then
 975                 canaryDomains="${canaryDomains:+$canaryDomains }${canaryDomainsMozilla}"
 976         fi
 977
 978         for hf in $blocked_domain $canaryDomains; do echo "$hf" | sed "$domainsFilter" >> $B_TMP; done
 979         allowed_domain="${allowed_domain}
 980 $(cat $A_TMP)"
 981         for hf in ${allowed_domain}; do hf="$(echo "$hf" | sed 's/\./\\./g')"; allow_filter="$allow_filter/(^|\.)${hf}$/d;"; done
 982
 983         [ ! -s "$B_TMP" ] && return 1
 984
 985         output 1 'Processing downloads '
 986         output 2 'Sorting combined list '
 987         json set status "statusProcessing"
 988         json set message "$(get_text "statusProcessing"): sorting combined list"
 989         if [ "$allow_non_ascii" -gt 0 ]; then
 990                 if sort -u "$B_TMP" > "$A_TMP"; then
 991                         output_ok
 992                 else
 993                         output_failn
 994                         json add error "errorSorting"
 995                 fi
 996         else
 997                 if sort -u "$B_TMP" | grep -E -v '[^a-zA-Z0-9=/.-]' > "$A_TMP"; then
 998                         output_ok
 999                 else
1000                         output_failn
1001                         json add error "errorSorting"
1002                 fi
1003         fi
1004
1005         if [ "$dns" = 'dnsmasq.conf' ] || \
1006                  [ "$dns" = 'dnsmasq.ipset' ] || \
1007                  [ "$dns" = 'dnsmasq.nftset' ] || \
1008                  [ "$dns" = 'dnsmasq.servers' ] || \
1009                  [ "$dns" = 'unbound.adb_list' ]; then
1010                 # TLD optimization written by Dirk Brenken (dev@brenken.org)
1011                 output 2 'Optimizing combined list '
1012                 json set message "$(get_text "statusProcessing"): optimizing combined list"
1013 #       sed -E 'G;:t;s/(.*)(\.)(.*)(\n)(.*)/\1\4\5\2\3/;tt;s/(.*)\n(\.)(.*)/\3\2\1/' is actually slower than command below
1014                 if $awk -F "." '{for(f=NF;f>1;f--)printf "%s.",$f;print $1}' "$A_TMP" > "$B_TMP"; then
1015                         if sort "$B_TMP" > "$A_TMP"; then
1016                                 if $awk '{if(NR=1){tld=$NF};while(getline){if($NF!~tld"\\."){print tld;tld=$NF}}print tld}' "$A_TMP" > "$B_TMP"; then
1017                                         if $awk -F "." '{for(f=NF;f>1;f--)printf "%s.",$f;print $1}' "$B_TMP" > "$A_TMP"; then
1018                                                 if sort -u "$A_TMP" > "$B_TMP"; then
1019                                                         output_ok
1020                                                 else
1021                                                         output_failn
1022                                                         json add error "errorOptimization"
1023                                                         mv "$A_TMP" "$B_TMP"
1024                                                 fi
1025                                         else
1026                                                 output_failn
1027                                                 json add error "errorOptimization"
1028                                         fi
1029                                 else
1030                                         output_failn
1031                                         json add error "errorOptimization"
1032                                         mv "$A_TMP" "$B_TMP"
1033                                 fi
1034                         else
1035                                 output_failn
1036                                 json add error "errorOptimization"
1037                         fi
1038                 else
1039                         output_failn
1040                         json add error "errorOptimization"
1041                         mv "$A_TMP" "$B_TMP"
1042                 fi
1043         else
1044                 mv "$A_TMP" "$B_TMP"
1045         fi
1046
1047         if [ -n "$allow_filter" ]; then
1048                 output 2 'Allowing domains '
1049                 json set message "$(get_text "statusProcessing"): allowing domains"
1050                 if sed -i -E "$allow_filter" "$B_TMP"; then
1051                         output_ok
1052                 else
1053                         output_failn
1054                         json add error "errorAllowListProcessing"
1055                 fi
1056         fi
1057         output 2 'Formatting merged file '
1058         json set message "$(get_text "statusProcessing"): formatting merged file"
1059         if [ -z "$outputFilterIPv6" ]; then
1060                 if sed "$outputFilter" "$B_TMP" > "$A_TMP"; then
1061                         output_ok
1062                 else
1063                         output_failn
1064                         json add error "errorDataFileFormatting"
1065                 fi
1066         else
1067                 case "$dns" in
1068                         dnsmasq.addnhosts)
1069                                 if sed "$outputFilter" "$B_TMP" > "$A_TMP" && \
1070                                         sed "$outputFilterIPv6" "$B_TMP" >> "$A_TMP"; then
1071                                         output_ok
1072                                 else
1073                                         output_failn
1074                                         json add error "errorDataFileFormatting"
1075                                 fi
1076                         ;;
1077                 esac
1078         fi
1079
1080         case "$dns" in
1081                 dnsmasq.addnhosts)
1082                         output 2 'Creating dnsmasq addnhosts file '
1083                         json set message "$(get_text "statusProcessing"): creating dnsmasq addnhosts file"
1084                 ;;
1085                 dnsmasq.conf)
1086                         output 2 'Creating dnsmasq config file '
1087                         json set message "$(get_text "statusProcessing"): creating dnsmasq config file"
1088                 ;;
1089                 dnsmasq.ipset)
1090                         output 2 'Creating dnsmasq ipset file '
1091                         json set message "$(get_text "statusProcessing"): creating dnsmasq ipset file"
1092                 ;;
1093                 dnsmasq.nftset)
1094                         output 2 'Creating dnsmasq nft set file '
1095                         json set message "$(get_text "statusProcessing"): creating dnsmasq nft set file"
1096                 ;;
1097                 dnsmasq.servers)
1098                         output 2 'Creating dnsmasq servers file '
1099                         json set message "$(get_text "statusProcessing"): creating dnsmasq servers file"
1100                 ;;
1101                 unbound.adb_list)
1102                         output 2 'Creating Unbound adb_list file '
1103                         json set message "$(get_text "statusProcessing"): creating Unbound adb_list file"
1104                 ;;
1105         esac
1106
1107         if mv "$A_TMP" "$outputFile"; then
1108                 output_ok
1109         else
1110                 output_failn
1111                 json add error "errorMovingDataFile"
1112         fi
1113         if [ "$compressed_cache" -gt 0 ]; then
1114                 output 2 'Creating compressed cache '
1115                 json set message "$(get_text "statusProcessing"): creating compressed cache"
1116                 if cache 'create_gzip'; then
1117                         output_ok
1118                 else
1119                         output_failn
1120                         json add error "errorCreatingCompressedCache"
1121                 fi
1122         else
1123                 rm -f "$outputGzip"
1124         fi
1125         output 2 'Removing temporary files '
1126         json set message "$(get_text "statusProcessing"): removing temporary files"
1127         rm -f "/tmp/${packageName}_tmp.*" "$A_TMP" "$B_TMP" "$outputCache" || j=1
1128         if [ $j -eq 0 ]; then
1129                 output_ok
1130         else
1131                 output_failn
1132                 json add error "errorRemovingTempFiles"
1133         fi
1134         output 1 '\n'
1135 }
1136
1137 adb_allow() {
1138         local c hf string="$1"
1139         local validation_result="$3"
1140         load_environment "$validation_result" 'quiet' || return 1
1141         if [ ! -s "$outputFile" ]; then
1142                 output "No block-list ('$outputFile') found.\\n"
1143                 return 0
1144         elif [ -z "$string" ]; then
1145                 output "Usage: /etc/init.d/${packageName} allow 'domain' ...\\n"
1146                 return 0
1147         elif [ -n "$dnsmasq_config_file_url" ]; then
1148                 output "Allowing individual domains is not possible when using external dnsmasq config file.\\n"
1149                 return 0
1150         fi
1151         case "$dns" in
1152                 dnsmasq.addnhosts|dnsmasq.conf|dnsmasq.ipset|dnsmasq.nftset|dnsmasq.servers)
1153                         output 1 "Allowing domain(s) and restarting dnsmasq "
1154                         output 2 "Allowing domain(s) \\n"
1155                         for c in $string; do
1156                                 output 2 "  $c "
1157                                 hf="$(echo "$c" | sed 's/\./\\./g')"
1158                                 if sed -i "/\(^\|\.\)${hf}$/d;" "$outputFile" && \
1159                                         uci_add_list_if_new "${packageName}" 'config' 'allowed_domain' "$c"; then
1160                                                 output_ok
1161                                 else
1162                                         output_fail
1163                                 fi
1164                         done
1165                         if [ "$compressed_cache" -gt 0 ]; then
1166                                 output 2 'Creating compressed cache '
1167                                 if cache 'create_gzip'; then
1168                                         output_ok
1169                                 else
1170                                         output_failn
1171                                 fi
1172                         fi
1173                         output 2 "Committing changes to config "
1174                         if [ -n "$(uci_changes "$packageName")" ] && uci_commit "$packageName"; then
1175                                 allowed_domain="$(uci_get "$packageName" 'config' 'allowed_domain')"
1176                                 json set triggers
1177                                 json set stats "$serviceName is blocking $(wc -l < "$outputFile") domains (with ${dns})"
1178                                 output_ok;
1179                                 if [ "$dns" = 'dnsmasq.ipset' ]; then
1180                                         output 2 "Flushing adb ipset "
1181                                         if ipset -q -! flush adb; then output_ok; else output_fail; fi
1182                                 fi
1183                                 if [ "$dns" = 'dnsmasq.nftset' ]; then
1184                                         output 2 "Flushing adb nft sets "
1185                                         nft flush set inet fw4 adb6
1186                                         if nft flush set inet fw4 adb4; then output_ok; else output_fail; fi
1187                                 fi
1188                                 output 2 "Restarting dnsmasq "
1189                                 if dnsmasq_restart; then output_okn; else output_failn; fi
1190                         else
1191                                 output_fail;
1192                         fi
1193                 ;;
1194                 unbound.adb_list)
1195                         output 1 "Allowing domain(s) and restarting Unbound "
1196                         output 2 "Allowing domain(s) \\n"
1197                         for c in $string; do
1198                                 output 2 "  $c "
1199                                 if sed -i "/${string}/d" "$outputFile" && \
1200                                         uci_add_list_if_new "$packageName" 'config' 'allowed_domain' "$string"; then
1201                                                 output_ok
1202                                 else
1203                                         output_fail
1204                                 fi
1205                         done
1206                         if [ "$compressed_cache" -gt 0 ]; then
1207                                 output 2 'Creating compressed cache '
1208                                 if cache 'create_gzip'; then
1209                                         output_ok
1210                                 else
1211                                         output_failn
1212                                 fi
1213                         fi
1214                         output 2 "Committing changes to config "
1215                         if [ -n "$(uci_changes "$packageName")" ] && uci_commit "$packageName"; then
1216                                 allowed_domain="$(uci_get "$packageName" 'config' 'allowed_domain')"
1217                                 json set triggers
1218                                 json set stats "$serviceName is blocking $(wc -l < "$outputFile") domains (with ${dns})"
1219                                 output_ok;
1220                                 output 2 "Restarting Unbound "
1221                                 if unbound_restart; then output_okn; else output_failn; fi
1222                         else
1223                                 output_fail;
1224                         fi
1225                 ;;
1226         esac
1227 }
1228
1229 adb_check() {
1230         local c param="$1"
1231         local validation_result="$3"
1232         load_environment "$validation_result" 'quiet' || return 1
1233         if [ ! -s "$outputFile" ]; then
1234                 output "No block-list ('$outputFile') found.\\n"
1235                 return 0
1236         elif [ -z "$param" ]; then
1237                 output "Usage: /etc/init.d/${packageName} check 'domain' ...\\n"
1238                 return 0
1239         fi
1240         for string in ${param}; do
1241                 c="$(grep -c "$string" "$outputFile")"
1242                 if [ "$c" -gt 0 ]; then
1243                         if [ "$c" -eq 1 ]; then
1244                                 output "Found 1 match for '$string' in '$outputFile'.\\n"
1245                         else
1246                                 output "Found $c matches for '$string' in '$outputFile'.\\n"
1247                         fi
1248                         if [ "$c" -le 20 ]; then
1249                                 case "$dns" in
1250                                         dnsmasq.addnhosts)
1251                                                 grep "$string" "$outputFile" | sed 's|^127.0.0.1 ||;s|^:: ||;';;
1252                                         dnsmasq.conf)
1253                                                 grep "$string" "$outputFile" | sed 's|local=/||;s|/$||;';;
1254                                         dnsmasq.ipset)
1255                                                 grep "$string" "$outputFile" | sed 's|ipset=/||;s|/adb$||;';;
1256                                         dnsmasq.nftset)
1257                                                 grep "$string" "$outputFile" | sed 's|nftset=/||;s|/4#inet#adb#adb4||;';;
1258                                         dnsmasq.servers)
1259                                                 grep "$string" "$outputFile" | sed 's|server=/||;s|/$||;';;
1260                                         unbound.adb_list)
1261                                                 grep "$string" "$outputFile" | sed 's|^local-zone: "||;s|" static$||;';;
1262                                 esac
1263                         fi
1264                 else
1265                         output "The '$string' is not found in current block-list ('$outputFile').\\n"
1266                 fi
1267         done
1268 }
1269
1270 adb_config_update() {
1271         local R_TMP label
1272         local param validation_result="$3"
1273         case "$1" in
1274                 on_boot) param="$1";;
1275                 *) param='quiet';;
1276         esac
1277         load_environment "$validation_result" "$param" || return 1
1278         label="${config_update_url##*//}"
1279         label="${label%%/*}";
1280         [ "$config_update_enabled" -ne 0 ] || return 0
1281
1282         if [ "$param" != 'download' ]; then
1283                 cache 'test' && return 0
1284                 cache 'test_gzip' && return 0
1285         fi
1286         output 1 'Updating config '
1287         while [ -z "$R_TMP" ] || [ -e "$R_TMP" ]; do
1288                 R_TMP="$(mktemp -u -q -t ${packageName}_tmp.XXXXXXXX)"
1289         done
1290         if ! $dl_command "$config_update_url" "$dl_flag" "$R_TMP" 2>/dev/null || [ ! -s "$R_TMP" ]; then
1291                 output 1 "$_FAIL_\\n"
1292                 output 2 "[DL] Config  Update:  $label $__FAIL__\\n"
1293                 json add error "errorDownloadingConfigUpdate"
1294         else
1295                 if [ -s "$R_TMP" ] && sed -f "$R_TMP" -i "$packageConfigFile" 2>/dev/null; then
1296                         output 1 "$_OK_\\n"
1297                         output 2 "[DL] Config  Update:  $label $__OK__\\n"
1298                 else
1299                         output 1 "$_FAIL_\\n"
1300                         output 2 "[DL] Config  Update:  $label $__FAIL__\\n"
1301                         json add error "errorParsingConfigUpdate"
1302                 fi
1303         fi
1304         rm -f "$R_TMP"
1305         return 0
1306 }
1307
1308 _config_add_url_size() {
1309         local cfg="$1" url size
1310         config_get url "$cfg" url
1311         size="$(get_url_filesize "$url")"
1312         output "$url${size:+: $size} "
1313         if [ -n "$size" ]; then
1314                 uci set "${packageName}.${cfg}.size=$size"
1315                 output_okn
1316         else
1317                 output_failn
1318         fi
1319 }
1320
1321 adb_sizes() {
1322         local i
1323         local validation_result="$3"
1324         load_environment "$validation_result" 'quiet' || return 1
1325         config_load "$packageName"
1326         config_foreach _config_add_url_size 'file_url'
1327         uci commit "$packageName"
1328 }
1329
1330 # shellcheck disable=SC2120
1331 adb_start() {
1332         local action status error message stats c
1333         local param="$1" validation_result="$3"
1334
1335         load_environment "$validation_result" "$param" || return 1
1336
1337         status="$(json get status)"
1338         error="$(json get error)"
1339         message="$(json get message)"
1340         stats="$(json get stats)"
1341         action="$(json get triggers)"
1342
1343         if [ "$action" = 'on_boot' ] || [ "$param" = 'on_boot' ]; then
1344                 if cache 'test_gzip' || cache 'test'; then
1345                         action='restore'
1346                 else
1347                         action='download'
1348                 fi
1349         elif [ "$action" = 'download' ] || [ "$param" = 'download' ] || [ -n "$error" ]; then
1350                 action='download'
1351         elif [ ! -s "$outputFile" ]; then
1352                 if cache 'test_gzip' || cache 'test'; then
1353                         action='restore'
1354                 else
1355                         action='download'
1356                 fi
1357         elif [ "$action" = 'restart' ] || [ "$param" = 'restart' ]; then
1358                 action='restart'
1359         elif [ -s "$outputFile" ] && [ "$status" = "statusSuccess" ] && [ -z "$error" ]; then
1360                 status_service
1361                 return 0
1362         else
1363                 action='download'
1364         fi
1365
1366         json del all
1367         json set triggers
1368
1369         if [ "$action" = 'restore' ]; then
1370                 output 0 "Starting $serviceName... "
1371                 output 3 "Starting $serviceName...\\n"
1372                 json set status "statusStarting"
1373                 if cache 'test_gzip' && ! cache 'test' && [ ! -s "$outputFile" ]; then
1374                         output 3 'Found compressed cache file, unpacking it '
1375                         json set message 'found compressed cache file, unpacking it.'
1376                         if cache 'unpack_gzip'; then
1377                                 output_okn
1378                         else
1379                                 output_failn
1380                                 json add error "errorRestoreCompressedCache"
1381                                 output "${_ERROR_}: $(get_text 'errorRestoreCompressedCache')!\\n"
1382                                 action='download'
1383                         fi
1384                 fi
1385                 if cache 'test' && [ ! -s "$outputFile" ]; then
1386                         output 3 'Found cache file, reusing it '
1387                         json set message 'found cache file, reusing it.'
1388                         if cache 'restore'; then
1389                                 output_okn
1390                                 dns 'on_start'
1391                         else
1392                                 output_failn
1393                                 json add error "errorRestoreCache"
1394                                 output "${_ERROR_}: $(get_text 'errorRestoreCache')!\\n"
1395                                 action='download'
1396                         fi
1397                 fi
1398         fi
1399         if [ "$action" = 'download' ]; then
1400                 if [ -z "$blocked_url" ] && [ -z "$blocked_domain" ]; then
1401                         json set status "statusFail"
1402                         json add error "errorNothingToDo"
1403                         output "${_ERROR_}: $(get_text 'errorNothingToDo')!\\n"
1404                 else
1405                         if [ -s "$outputFile" ] || cache 'test' || cache 'test_gzip'; then
1406                                 output 0 "Force-reloading $serviceName... "
1407                                 output 3 "Force-reloading $serviceName...\\n"
1408                                 json set status "statusForceReloading"
1409                         else
1410                                 output 0 "Starting $serviceName... "
1411                                 output 3 "Starting $serviceName...\\n"
1412                                 json set status "statusStarting"
1413                         fi
1414                         if [ "$dns" = 'dnsmasq.conf' ] && [ -n "$dnsmasq_config_file_url" ]; then
1415                                 download_dnsmasq_file
1416                         else
1417                                 download_lists
1418                         fi
1419                         dns 'on_start'
1420                 fi
1421         fi
1422         if [ "$action" = 'restart' ]; then
1423                 output 0 "Restarting $serviceName... "
1424                 output 3 "Restarting $serviceName...\\n"
1425                 json set status "statusRestarting"
1426                 dns 'on_start'
1427         fi
1428         if [ "$action" = 'start' ]; then
1429                 output 0 "Starting $serviceName... "
1430                 output 3 "Starting $serviceName...\\n"
1431                 json set status "statusStarting"
1432                 dns 'on_start'
1433         fi
1434         if [ -s "$outputFile" ] && [ "$(json get status)" != "statusFail" ]; then
1435                 output 0 "$__OK__\\n";
1436                 json del message
1437                 json set status "statusSuccess"
1438                 json set stats "$serviceName is blocking $(wc -l < "$outputFile") domains (with ${dns})"
1439                 status_service
1440         else
1441                 output 0 "$__FAIL__\\n";
1442                 json set status "statusFail"
1443                 json add error "errorOhSnap"
1444                 status_service
1445         fi
1446
1447         procd_open_instance 'main'
1448         procd_set_param command /bin/true
1449         procd_set_param stdout 1
1450         procd_set_param stderr 1
1451         procd_open_data
1452         json_add_string 'status' "$(json get status)"
1453         json_add_string 'errors' "$(json get error)"
1454         json_add_string 'warnings' "$(json get warning)"
1455         if [ -s "$outputFile" ]; then
1456                 json_add_int 'entries' "$(wc -l < "$outputFile")"
1457         else
1458                 json_add_int 'entries' '0'
1459         fi
1460         json_add_array firewall
1461         if [ "$force_dns" -ne 0 ]; then
1462                 for c in ${force_dns_port/,/ }; do
1463                         if netstat -tuln | grep LISTEN | grep ":${c}" >/dev/null 2>&1; then
1464                                 json_add_object ""
1465                                 json_add_string type redirect
1466                                 json_add_string target DNAT
1467                                 json_add_string src lan
1468                                 json_add_string proto "tcp udp"
1469                                 json_add_string src_dport "$c"
1470                                 json_add_string dest_port "$c"
1471                                 json_add_string family any
1472                                 json_add_boolean reflection 0
1473                                 json_close_object
1474                         else
1475                                 json_add_object ""
1476                                 json_add_string type rule
1477                                 json_add_string src lan
1478                                 json_add_string dest "*"
1479                                 json_add_string proto "tcp udp"
1480                                 json_add_string dest_port "$c"
1481                                 json_add_string target REJECT
1482                                 json_close_object
1483                         fi
1484                 done
1485         fi
1486         case "$dns" in
1487                 dnsmasq.ipset)
1488                         json_add_object ""
1489                         json_add_string type ipset
1490                         json_add_string name adb
1491                         json_add_string match dest_net
1492                         json_add_string storage hash
1493                         json_close_object
1494                         json_add_object ""
1495                         json_add_string type rule
1496                         json_add_string ipset adb
1497                         json_add_string src lan
1498                         json_add_string dest "*"
1499                         json_add_string proto "tcp udp"
1500                         json_add_string target REJECT
1501                         json_close_object
1502                 ;;
1503                 dnsmasq.nftset)
1504                         json_add_object ""
1505                         json_add_string type ipset
1506                         json_add_string name adb4
1507                         json_add_string family 4
1508                         json_add_string match dest_net
1509                         json_close_object
1510                         json_add_object ""
1511                         json_add_string type rule
1512                         json_add_string ipset adb4
1513                         json_add_string src lan
1514                         json_add_string dest "*"
1515                         json_add_string proto "tcp udp"
1516                         json_add_string target REJECT
1517                         json_close_object
1518                         if [ "$ipv6_enabled" -ne 0 ]; then
1519                                 json_add_object ""
1520                                 json_add_string type ipset
1521                                 json_add_string name adb6
1522                                 json_add_string family 6
1523                                 json_add_string match dest_net
1524                                 json_close_object
1525                                 json_add_object ""
1526                                 json_add_string type rule
1527                                 json_add_string ipset adb6
1528                                 json_add_string src lan
1529                                 json_add_string dest "*"
1530                                 json_add_string proto "tcp udp"
1531                                 json_add_string target REJECT
1532                                 json_close_object
1533                         fi
1534                 ;;
1535         esac
1536         json_close_array
1537         procd_close_data
1538         procd_close_instance
1539 }
1540
1541 adb_status() {
1542         local c url status message error stats
1543         local validation_result="$3"
1544         load_environment "$validation_result" 'quiet' || return 1
1545         status="$(json get status)"
1546         message="$(json get message)"
1547         error="$(json get error)"
1548         stats="$(json get stats)"
1549         if [ "$status" = "statusSuccess" ]; then
1550                 output "$stats "; output_okn;
1551         else
1552                 [ -n "$status" ] && status="$(get_text "$status")"
1553                 if [ -n "$status" ] && [ -n "$message" ]; then
1554                         status="${status}: $message"
1555                 fi
1556                 [ -n "$status" ] && output "$serviceName $status\\n"
1557         fi
1558         if [ -n "$error" ]; then
1559                 for c in $error; do
1560                         url="${c##*|}"
1561                         c="${c%|*}"
1562                         case "$c" in
1563                                 errorDownloadingList|errorParsingList)
1564                                         output "${_ERROR_}: $(get_text "$c") $url!\\n";;
1565                                 *)
1566                                         output "${_ERROR_}: $(get_text "$c")!\\n";;
1567                         esac
1568                         n=$((n+1))
1569                 done
1570         fi
1571 }
1572
1573 # shellcheck disable=SC2120
1574 adb_stop() {
1575         local validation_result="$3"
1576         load_environment "$validation_result" 'quiet' || return 1
1577         if [ -s "$outputFile" ]; then
1578                 output "Stopping $serviceName... "
1579                 cache 'create'
1580                 if dns 'on_stop'; then
1581                         ipset -q -! flush adb
1582                         ipset -q -! destroy adb
1583                         nft delete set inet fw4 adb4
1584                         nft delete set inet fw4 adb6
1585                         led_off "$led"
1586                         output 0 "$__OK__\\n"; output_okn;
1587                         json set status "statusStopped"
1588                         json del message
1589                 else
1590                         output 0 "$__FAIL__\\n"; output_fail;
1591                         json set status "statusFail"
1592                         json add error "errorStopping"
1593                         output "${_ERROR_}: $(get_text 'errorStopping')!\\n"
1594                 fi
1595         fi
1596 }
1597
1598 adb_pause() {
1599         local timeout="${1:-$pause_timeout}"
1600         local validation_result="$3"
1601         adb_stop 'on_pause' '' "$validation_result"
1602         output "Sleeping for $timeout seconds... "
1603         if sleep "$timeout"; then
1604                 output_okn
1605         else
1606                 output_failn
1607         fi
1608         adb_start 'on_pause' '' "$validation_result"
1609 }
1610
1611 allow() { load_validate_config 'config' adb_allow "'$*'"; }
1612 boot() {
1613         ubus -t 30 wait_for network.interface 2>/dev/null
1614         rc_procd start_service 'on_boot'
1615 }
1616 check() { load_validate_config 'config' adb_check "'$*'"; }
1617 dl() { rc_procd start_service 'download'; }
1618 killcache() {
1619         local compressed_cache_dir
1620         config_load "$packageName"
1621         config_get compressed_cache_dir 'config' 'compressed_cache_dir' '/etc'
1622         if [ "$(sanitize_dir "$compressed_cache_dir")" = '/' ]; then
1623                 compressed_cache_dir=''
1624         elif [ -n "$(sanitize_dir "$compressed_cache_dir")" ]; then
1625                 compressed_cache_dir="$(sanitize_dir "$compressed_cache_dir")"
1626         else
1627                 compressed_cache_dir="/etc"
1628         fi
1629         rm -f "$dnsmasqAddnhostsCache" "${compressed_cache_dir}/${dnsmasqAddnhostsGzip}"
1630         rm -f "$dnsmasqConfCache" "${compressed_cache_dir}/${dnsmasqConfGzip}"
1631         rm -f "$dnsmasqIpsetCache" "${compressed_cache_dir}/${dnsmasqIpsetGzip}"
1632         rm -f "$dnsmasqNftsetCache" "${compressed_cache_dir}/${dnsmasqNftsetGzip}"
1633         rm -f "$dnsmasqServersCache" "${compressed_cache_dir}/${dnsmasqServersGzip}"
1634         rm -f "$unboundCache" "$unboundGzip"
1635         config_load 'dhcp'
1636         config_foreach resolver_config 'dnsmasq' 'cleanup'
1637         uci_commit 'dhcp'
1638         return 0
1639 }
1640 reload_service() { rc_procd start_service 'restart'; }
1641 restart_service() { rc_procd start_service 'restart'; }
1642 service_started() { procd_set_config_changed firewall; }
1643 service_stopped() { procd_set_config_changed firewall; }
1644 service_triggers() {
1645         local wan wan6 i
1646         local procd_trigger_wan6
1647         config_load "$packageName"
1648         config_get_bool procd_trigger_wan6 'config' 'procd_trigger_wan6' '0'
1649         . /lib/functions/network.sh
1650         network_flush_cache
1651         network_find_wan wan
1652         wan="${wan:-wan}"
1653         if [ "$procd_trigger_wan6" -ne 0 ]; then
1654                 network_find_wan6 wan6
1655                 wan6="${wan6:-wan6}"
1656         fi
1657         for i in "$wan" "$wan6"; do
1658                 [ -n "$i" ] && procd_add_interface_trigger "interface.*" "$i" "/etc/init.d/${packageName}" start
1659         done
1660         procd_add_config_trigger "config.change" "$packageName" "/etc/init.d/${packageName}" reload
1661 }
1662 sizes() { load_validate_config 'config' adb_sizes "''"; }
1663 start_service() {
1664         load_validate_config 'config' adb_config_update "'$*'"
1665         load_validate_config 'config' adb_start "'$*'"
1666 }
1667 status_service() { load_validate_config 'config' adb_status "''"; }
1668 stop_service() { load_validate_config 'config' adb_stop "'$*'"; }
1669 pause() { load_validate_config 'config' adb_pause "'$*'"; }
1670 version() { echo "$PKG_VERSION"; }
1671
1672 load_validate_file_url_section() {
1673         uci_load_validate "$packageName" "$packageName" "$1" "$2" \
1674                 'enabled:bool:1' \
1675                 'action:or("allow", "block"):block' \
1676                 'size:or(uinteger, "")' \
1677                 'url:string'
1678 }
1679
1680 load_validate_config() {
1681         . /lib/functions/network.sh
1682         . /usr/share/libubox/jshn.sh
1683         local enabled
1684         local force_dns
1685         local force_dns_port
1686         local parallel_downloads
1687         local debug
1688         local compressed_cache
1689         local compressed_cache_dir
1690         local ipv6_enabled
1691         local allow_non_ascii
1692         local canary_domains_icloud
1693         local canary_domains_mozilla
1694         local config_update_enabled
1695         local config_update_url
1696         local download_timeout
1697         local pause_timeout
1698         local curl_additional_param
1699         local curl_max_file_size
1700         local curl_retry
1701         local verbosity
1702         local procd_trigger_wan6
1703         local procd_boot_wan_timeout
1704         local led
1705         local dns
1706         local dnsmasq_instance
1707         local allowed_domain
1708         local blocked_domain
1709         local dnsmasq_config_file_url
1710         uci_load_validate "$packageName" "$packageName" "$1" "${2}${3:+ $3}" \
1711                 'enabled:bool:0' \
1712                 'force_dns:bool:1' \
1713                 'force_dns_port:list(integer):53,853' \
1714                 'parallel_downloads:bool:1' \
1715                 'debug:bool:0' \
1716                 'compressed_cache:bool:0' \
1717                 'compressed_cache_dir:directory:/etc' \
1718                 'ipv6_enabled:bool:0' \
1719                 'allow_non_ascii:bool:0' \
1720                 'canary_domains_icloud:bool:0' \
1721                 'canary_domains_mozilla:bool:0' \
1722                 'config_update_enabled:bool:0' \
1723                 'config_update_url:string:https://cdn.jsdelivr.net/gh/openwrt/packages/net/adblock-fast/files/adblock-fast.conf.update' \
1724                 'download_timeout:range(1,60):20' \
1725                 'pause_timeout:range(10,120):60' \
1726                 'curl_additional_param:or("", string)' \
1727                 'curl_max_file_size:or("", uinteger)' \
1728                 'curl_retry:range(0,30):3' \
1729                 'verbosity:range(0,2):2' \
1730                 'procd_trigger_wan6:bool:0' \
1731                 'procd_boot_wan_timeout:integer:60' \
1732                 'led:or("", "none", file, device, string)' \
1733                 'dns:or("dnsmasq.addnhosts", "dnsmasq.conf", "dnsmasq.ipset", "dnsmasq.nftset", "dnsmasq.servers", "unbound.adb_list"):dnsmasq.servers' \
1734                 'dnsmasq_instance:list(or(integer, string)):*' \
1735                 'allowed_domain:list(string)' \
1736                 'blocked_domain:list(string)' \
1737                 'dnsmasq_config_file_url:string'
1738 }