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<?php |
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/* |
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* Copyright © MIKO LLC - All Rights Reserved |
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* Unauthorized copying of this file, via any medium is strictly prohibited |
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* Proprietary and confidential |
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* Written by Alexey Portnov, 10 2020 |
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*/ |
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namespace MikoPBX\PBXCoreREST\Lib; |
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use MikoPBX\Common\Models\Fail2BanRules; |
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use MikoPBX\Core\System\Configs\Fail2BanConf; |
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use MikoPBX\Core\System\Util; |
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use MikoPBX\Core\System\Verify; |
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use Phalcon\Di\Injectable; |
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use SQLite3; |
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class FirewallManagementProcessor extends Injectable |
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{ |
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/** |
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* Удалить адрес из бана. |
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* |
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* @param string $ip |
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* |
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* @return \MikoPBX\PBXCoreREST\Lib\PBXApiResult |
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*/ |
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public static function fail2banUnbanAll(string $ip): PBXApiResult |
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{ |
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$ip = trim($ip); |
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$res = new PBXApiResult(); |
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$res->processor = __METHOD__; |
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$res->success = true; |
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if ( ! Verify::isIpAddress($ip)) { |
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$res->success = false; |
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$res->messages[]="Not valid ip '{$ip}'."; |
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} |
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$fail2ban = new Fail2BanConf(); |
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if ($fail2ban->fail2ban_enable) { |
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$fail2ban = Util::which('fail2ban-client'); |
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$res->success = (Util::mwExec("{$fail2ban} unban {$ip}") === 0); |
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} else { |
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$res = self::fail2banUnbanDb($ip); |
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} |
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return $res; |
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} |
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/** |
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* Возвращает массив забаненных ip. Либо данные по конкретному адресу. |
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* |
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* @param ?string $ip |
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* |
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* @return PBXApiResult |
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*/ |
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public static function getBanIp(?string $ip = null): PBXApiResult |
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{ |
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$res = new PBXApiResult(); |
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$res->processor = __METHOD__; |
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$db = self::getDbConnection(); |
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if(!$db){ |
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// Таблица не существует. Бана нет. |
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$res->success = false; |
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$res->messages[] = 'DB '.Fail2BanConf::FAIL2BAN_DB_PATH.' not found'; |
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return $res; |
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} |
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$query = self::getQueryBanIp($ip); |
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$results = $db->query($query); |
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$result = []; |
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if (false !== $results && $results->numColumns() > 0) { |
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while ($banRule = $results->fetchArray(SQLITE3_ASSOC)) { |
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$result[] = $banRule; |
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} |
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} |
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$res->success = true; |
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$res->data = $result; |
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return $res; |
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} |
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public static function getDbConnection(){ |
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if(!file_exists(Fail2BanConf::FAIL2BAN_DB_PATH)){ |
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return null; |
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} |
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try { |
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$db = new SQLite3(Fail2BanConf::FAIL2BAN_DB_PATH); |
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}catch (\Exception $e){ |
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return null; |
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} |
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$db->busyTimeout(5000); |
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$fail2ban = new Fail2BanConf(); |
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if (false === $fail2ban->tableBanExists($db)) { |
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return null; |
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} |
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return $db; |
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} |
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/** |
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* Возвращает запрос SQL для получения забаненных IP. |
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* @param $ip |
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* @return string |
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*/ |
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public static function getQueryBanIp($ip):string{ |
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$banRule = Fail2BanRules::findFirst("id = '1'"); |
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if ($banRule !== null) { |
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$ban_time = $banRule->bantime; |
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} else { |
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$ban_time = '43800'; |
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} |
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// Добавленн фильтр по времени бана. возвращаем только адреса, которые еще НЕ разбанены. |
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$q = 'SELECT' . ' DISTINCT jail,ip,MAX(timeofban) AS timeofban, MAX(timeofban+' . $ban_time . ') AS timeunban FROM bans where (timeofban+' . $ban_time . ')>' . time(); |
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if ($ip !== null) { |
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$q .= " AND ip='{$ip}'"; |
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} |
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$q .= ' GROUP BY jail,ip'; |
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return $q; |
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} |
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/** |
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* Удаление бана из базы. |
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* |
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* @param string $ip |
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* @param string $jail |
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* |
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* @return PBXApiResult |
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*/ |
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public static function fail2banUnbanDb(string $ip, string $jail = ''): PBXApiResult |
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{ |
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$res = new PBXApiResult(); |
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$res->processor = __METHOD__; |
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$jail_q = ($jail === '') ? '' : "AND jail = '{$jail}'"; |
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$path_db = Fail2BanConf::FAIL2BAN_DB_PATH; |
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if(!file_exists($path_db)){ |
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// Таблица не существует. Бана нет. |
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$res->success = false; |
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$res->messages[] = "DB {$path_db} not found"; |
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return $res; |
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} |
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$db = new SQLite3($path_db); |
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$db->busyTimeout(3000); |
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$fail2ban = new Fail2BanConf(); |
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if (false === $fail2ban->tableBanExists($db)) { |
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// Таблица не существует. Бана нет. |
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$res->success = true; |
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return $res; |
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} |
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$q = 'DELETE' . " FROM bans WHERE ip = '{$ip}' {$jail_q}"; |
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$db->query($q); |
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$err = $db->lastErrorMsg(); |
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$res->success = ($err === 'not an error'); |
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$res->messages[] = $err; |
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return $res; |
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} |
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} |
mikopbx /
Core
