IpAnonymizationTask.php

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<?php
 
declare(strict_types=1);
 
/*
 * This file is part of the TYPO3 CMS project.
 *
 * It is free software; you can redistribute it and/or modify it under
 * the terms of the GNU General Public License, either version 2
 * of the License, or any later version.
 *
 * For the full copyright and license information, please read the
 * LICENSE.txt file that was distributed with this source code.
 *
 * The TYPO3 project - inspiring people to share!
 */
 
namespace ‪TYPO3\CMS\Scheduler\Task;
 
use ‪TYPO3\CMS\Core\Database\Connection;
use ‪TYPO3\CMS\Core\Database\ConnectionPool;
use ‪TYPO3\CMS\Core\Utility\GeneralUtility;
use ‪TYPO3\CMS\Core\Utility\IpAnonymizationUtility;
 
class ‪IpAnonymizationTask extends ‪AbstractTask
{
    public ‪$numberOfDays = 180;
 
    public ‪$mask = 2;
 
    public ‪$table = '';
 
    public function ‪execute()
    {
        $configuration = ‪$GLOBALS['TYPO3_CONF_VARS']['SC_OPTIONS']['scheduler']['tasks'][self::class]['options']['tables'][‪$this->table] ?? [];
        if (empty($configuration)) {
            throw new \RuntimeException(self::class . ' misconfiguration: ' . $this->table . ' does not exist in configuration', 1524502548);
        }
        $this->‪handleTable($this->table, $configuration);
        return true;
    }
 
    protected function ‪handleTable(‪$table, array $configuration)
    {
        $connection = GeneralUtility::makeInstance(ConnectionPool::class)->getConnectionForTable(‪$table);
        $queryBuilder = $connection->createQueryBuilder();
        $queryBuilder->getRestrictions()->removeAll();
 
        if (empty($configuration['dateField'])) {
            throw new \RuntimeException(self::class . ' misconfiguration: "dateField" must be defined for table ' . ‪$table, 1524502549);
        }
        if (empty($configuration['ipField'])) {
            throw new \RuntimeException(self::class . ' misconfiguration: "ipField" must be defined for table ' . ‪$table, 1524502666);
        }
        $deleteTimestamp = strtotime('-' . $this->numberOfDays . 'days');
        if ($deleteTimestamp === false) {
            throw new \RuntimeException(self::class . ' misconfiguration: number of days could not be calculated for table ' . ‪$table, 1524526354);
        }
        if ($this->mask === 2) {
            $notLikeMaskPattern = '%.0.0';
        } else {
            $notLikeMaskPattern = '%.0';
        }
        try {
            $result = $queryBuilder
                ->select('uid', $configuration['ipField'])
                ->where(
                    $queryBuilder->expr()->lt(
                        $configuration['dateField'],
                        $queryBuilder->createNamedParameter($deleteTimestamp, ‪Connection::PARAM_INT)
                    ),
                    $queryBuilder->expr()->neq(
                        $configuration['ipField'],
                        $queryBuilder->createNamedParameter('')
                    ),
                    $queryBuilder->expr()->isNotNull($configuration['ipField']),
                    $queryBuilder->expr()->notLike(
                        $configuration['ipField'],
                        $queryBuilder->createNamedParameter($notLikeMaskPattern)
                    ),
                    $queryBuilder->expr()->notLike(
                        $configuration['ipField'],
                        $queryBuilder->createNamedParameter('%::')
                    )
                )
                ->from(‪$table)
                ->executeQuery();
 
            while ($row = $result->fetchAssociative()) {
                $ip = (string)$row[$configuration['ipField']];
 
                $connection->update(
                    ‪$table,
                    [
                        $configuration['ipField'] => ‪IpAnonymizationUtility::anonymizeIp($ip, (int)$this->mask),
                    ],
                    [
                        'uid' => $row['uid'],
                    ]
                );
            }
        } catch (\‪Exception $e) {
            throw new \RuntimeException(self::class . ' failed for table ' . $this->table . ' with error: ' . $e->getMessage(), 1524502550);
        }
        return true;
    }
 
    public function ‪getAdditionalInformation()
    {
        return sprintf($this->‪getLanguageService()->sL('LLL:EXT:scheduler/Resources/Private/Language/locallang.xlf:label.ipAnonymization.additionalInformationTable'), $this->table, $this->numberOfDays);
    }
}