DERHANSEN\SfEventMgt\Utility\MiscUtility

Complexity

Total Complexity

1

Size/Duplication

Total Lines	18
Duplicated Lines	0 %

Coupling/Cohesion

Components	0
Dependencies	1

Importance

Changes

0

1 Method

Rating	Name	Duplication	Size	Complexity
A	getSpamCheckChallenge()	0	9	1

<?php
declare(strict_types=1);
namespace DERHANSEN\SfEventMgt\Utility;

/*
 * This file is part of the Extension "sf_event_mgt" for TYPO3 CMS.
 *
 * For the full copyright and license information, please read the
 * LICENSE.txt file that was distributed with this source code.
 */

use TYPO3\CMS\Core\Utility\GeneralUtility;

/**
 * Class MiscUtility
 */
class MiscUtility
{
    /**
     * Returns chars extracted from a hmac for the challenge/response spam check
     *
     * @param int $eventUid
     * @return string
     */
    public static function getSpamCheckChallenge(int $eventUid): string
    {
        $hmac = GeneralUtility::hmac('event-' . $eventUid, 'sf_event_mgt');
        $chars = preg_replace('/[0-9]+/', '', $hmac);

        return preg_replace_callback('/\w.?/', function ($m) {
            return ucfirst($m[0]);
        }, $chars);
    }
}