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<?php |
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namespace App\Services; |
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use App\Models\BinaryBlacklist; |
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use Illuminate\Support\Facades\DB; |
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class BlacklistService |
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{ |
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/** |
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* Cache of lists per group name. |
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*/ |
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private array $blackList = []; |
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private array $whiteList = []; |
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private array $listsFound = []; |
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/** |
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* Track blacklist IDs to update last_activity for. |
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*/ |
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private array $idsToUpdate = []; |
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/** |
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* Check if an article (OVER header) is blacklisted for the given group. |
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*/ |
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public function isBlackListed(array $msg, string $groupName): bool |
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{ |
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if (! isset($this->listsFound[$groupName])) { |
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$this->retrieveLists($groupName); |
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} |
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if (! $this->listsFound[$groupName]) { |
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return false; |
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} |
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$blackListed = false; |
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$field = [ |
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\Blacklight\Binaries::BLACKLIST_FIELD_SUBJECT => $msg['Subject'] ?? '', |
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\Blacklight\Binaries::BLACKLIST_FIELD_FROM => $msg['From'] ?? '', |
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\Blacklight\Binaries::BLACKLIST_FIELD_MESSAGEID => $msg['Message-ID'] ?? '', |
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]; |
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// Whitelist first: if any whitelist matches, allow; otherwise treat as blacklisted. |
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if ($this->whiteList[$groupName]) { |
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$blackListed = true; |
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foreach ($this->whiteList[$groupName] as $whiteList) { |
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if (@preg_match('/'.$whiteList->regex.'/i', $field[$whiteList->msgcol])) { |
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$blackListed = false; |
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$this->idsToUpdate[$whiteList->id] = $whiteList->id; |
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break; |
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} |
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} |
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} |
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if (! $blackListed && $this->blackList[$groupName]) { |
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foreach ($this->blackList[$groupName] as $blackList) { |
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if (@preg_match('/'.$blackList->regex.'/i', $field[$blackList->msgcol])) { |
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$blackListed = true; |
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$this->idsToUpdate[$blackList->id] = $blackList->id; |
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break; |
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} |
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} |
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} |
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return $blackListed; |
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} |
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/** |
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* Get and reset collected blacklist IDs that matched during checks. |
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*/ |
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public function getAndClearIdsToUpdate(): array |
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{ |
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$ids = array_values($this->idsToUpdate); |
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$this->idsToUpdate = []; |
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return $ids; |
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} |
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/** |
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* Update last_activity timestamp for given blacklist IDs. |
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*/ |
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public function updateBlacklistUsage(array $ids): void |
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{ |
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if (empty($ids)) { |
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return; |
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} |
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BinaryBlacklist::query()->whereIn('id', $ids)->update(['last_activity' => now()]); |
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} |
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/** |
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* Query blacklists from DB. |
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*/ |
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public function getBlacklist(bool $activeOnly = true, int|string $opType = -1, string $groupName = '', bool $groupRegex = false): array |
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{ |
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$opTypeSql = match ($opType) { |
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\Blacklight\Binaries::OPTYPE_BLACKLIST => 'AND bb.optype = '.\Blacklight\Binaries::OPTYPE_BLACKLIST, |
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\Blacklight\Binaries::OPTYPE_WHITELIST => 'AND bb.optype = '.\Blacklight\Binaries::OPTYPE_WHITELIST, |
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default => '', |
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}; |
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$joinOperator = $groupRegex ? 'REGEXP' : '='; |
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$activeSql = $activeOnly ? 'AND bb.status = 1' : ''; |
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$groupSql = $groupName ? ('AND g.name REGEXP '.escapeString($groupName)) : ''; |
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$sql = " |
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SELECT |
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bb.id, bb.optype, bb.status, bb.description, |
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bb.groupname AS groupname, bb.regex, g.id AS group_id, bb.msgcol, |
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bb.last_activity as last_activity |
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FROM binaryblacklist bb |
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LEFT OUTER JOIN usenet_groups g ON g.name $joinOperator bb.groupname |
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WHERE 1=1 $activeSql $opTypeSql $groupSql |
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ORDER BY coalesce(groupname,'zzz')"; |
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return DB::select($sql); |
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} |
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public function getBlacklistByID(int $id) |
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{ |
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return BinaryBlacklist::query()->where('id', $id)->first(); |
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} |
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public function deleteBlacklist(int $id): void |
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{ |
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BinaryBlacklist::query()->where('id', $id)->delete(); |
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} |
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public function updateBlacklist(array $blacklistArray): void |
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{ |
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BinaryBlacklist::query()->where('id', $blacklistArray['id'])->update( |
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[ |
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'groupname' => $blacklistArray['groupname'] === '' ? 'null' : preg_replace('/a\.b\./i', 'alt.binaries.', $blacklistArray['groupname']), |
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'regex' => $blacklistArray['regex'], |
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'status' => $blacklistArray['status'], |
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'description' => $blacklistArray['description'], |
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'optype' => $blacklistArray['optype'], |
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'msgcol' => $blacklistArray['msgcol'], |
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] |
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); |
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} |
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public function addBlacklist(array $blacklistArray): void |
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{ |
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BinaryBlacklist::query()->insert( |
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[ |
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'groupname' => $blacklistArray['groupname'] === '' ? 'null' : preg_replace('/a\.b\./i', 'alt.binaries.', $blacklistArray['groupname']), |
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'regex' => $blacklistArray['regex'], |
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'status' => $blacklistArray['status'], |
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'description' => $blacklistArray['description'], |
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'optype' => $blacklistArray['optype'], |
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'msgcol' => $blacklistArray['msgcol'], |
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] |
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); |
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} |
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private function retrieveLists(string $groupName): void |
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{ |
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if (! isset($this->blackList[$groupName])) { |
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$this->blackList[$groupName] = $this->getBlacklist(true, \Blacklight\Binaries::OPTYPE_BLACKLIST, $groupName, true); |
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} |
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if (! isset($this->whiteList[$groupName])) { |
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$this->whiteList[$groupName] = $this->getBlacklist(true, \Blacklight\Binaries::OPTYPE_WHITELIST, $groupName, true); |
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} |
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$this->listsFound[$groupName] = ($this->blackList[$groupName] || $this->whiteList[$groupName]); |
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} |
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} |
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NNTmux /
newznab-tmux
