ds-site/Classes/EventListener/ContentSecurityPolicyMutation.php

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<?php
declare(strict_types=1);
/*
* Copyright (C) 2023 Daniel Siepmann <coding@daniel-siepmann.de>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
* 02110-1301, USA.
*/
namespace DanielSiepmann\DsSite\EventListener;
use TYPO3\CMS\Core\Security\ContentSecurityPolicy\Directive;
use TYPO3\CMS\Core\Security\ContentSecurityPolicy\Event\PolicyMutatedEvent;
use TYPO3\CMS\Core\Security\ContentSecurityPolicy\Scope;
use TYPO3\CMS\Core\Security\ContentSecurityPolicy\UriValue;
class ContentSecurityPolicyMutation
{
public function __invoke(PolicyMutatedEvent $event): void
{
if ($event->scope !== Scope::frontend()) {
return;
}
$policy = $event->getCurrentPolicy();
$policy->remove(Directive::FrameSrc);
$policy->reduce(
Directive::ImgSrc,
new UriValue('*.ytimg.com'),
new UriValue('*.vimeocdn.com')
);
}
}