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116 lines
3 KiB
PHP
116 lines
3 KiB
PHP
<?php
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declare(strict_types=1);
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/**
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* @copyright Copyright (c) 2023 Joas Schilling <coding@schilljs.com>
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*
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* @author Joas Schilling <coding@schilljs.com>
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*
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* @license GNU AGPL version 3 or any later version
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License as
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* published by the Free Software Foundation, either version 3 of the
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* License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Affero General Public License for more details.
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*
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* You should have received a copy of the GNU Affero General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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*/
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namespace OC\Security\Bruteforce\Backend;
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use OCP\IDBConnection;
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class DatabaseBackend implements IBackend {
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private const TABLE_NAME = 'bruteforce_attempts';
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public function __construct(
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private IDBConnection $db,
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) {
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}
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/**
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* {@inheritDoc}
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*/
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public function getAttempts(
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string $ipSubnet,
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int $maxAgeTimestamp,
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?string $action = null,
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?array $metadata = null,
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): int {
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$query = $this->db->getQueryBuilder();
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$query->select($query->func()->count('*', 'attempts'))
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->from(self::TABLE_NAME)
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->where($query->expr()->gt('occurred', $query->createNamedParameter($maxAgeTimestamp)))
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->andWhere($query->expr()->eq('subnet', $query->createNamedParameter($ipSubnet)));
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if ($action !== null) {
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$query->andWhere($query->expr()->eq('action', $query->createNamedParameter($action)));
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if ($metadata !== null) {
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$query->andWhere($query->expr()->eq('metadata', $query->createNamedParameter(json_encode($metadata))));
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}
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}
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$result = $query->executeQuery();
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$row = $result->fetch();
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$result->closeCursor();
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return (int) $row['attempts'];
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}
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/**
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* {@inheritDoc}
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*/
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public function resetAttempts(
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string $ipSubnet,
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?string $action = null,
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?array $metadata = null,
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): void {
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$query = $this->db->getQueryBuilder();
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$query->delete(self::TABLE_NAME)
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->where($query->expr()->eq('subnet', $query->createNamedParameter($ipSubnet)));
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if ($action !== null) {
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$query->andWhere($query->expr()->eq('action', $query->createNamedParameter($action)));
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if ($metadata !== null) {
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$query->andWhere($query->expr()->eq('metadata', $query->createNamedParameter(json_encode($metadata))));
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}
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}
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$query->executeStatement();
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}
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/**
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* {@inheritDoc}
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*/
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public function registerAttempt(
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string $ip,
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string $ipSubnet,
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int $timestamp,
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string $action,
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array $metadata = [],
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): void {
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$values = [
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'ip' => $ip,
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'subnet' => $ipSubnet,
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'action' => $action,
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'metadata' => json_encode($metadata),
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'occurred' => $timestamp,
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];
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$qb = $this->db->getQueryBuilder();
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$qb->insert(self::TABLE_NAME);
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foreach ($values as $column => $value) {
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$qb->setValue($column, $qb->createNamedParameter($value));
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}
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$qb->executeStatement();
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}
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}
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