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<?php
/*
* 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\Backend\Form\FormDataProvider;
use Psr\Http\Message\ServerRequestInterface;
use TYPO3\CMS\Backend\Form\FormDataProviderInterface;
use TYPO3\CMS\Backend\Routing\UriBuilder;
/**
* Resolve return Url if not set from outside. This is used
* by various field elements when a "sub" FormEngine view
* is triggered. An example is the "Add" button on type="group"
* elements.
*
* @todo: We may want to get rid of this eventually: The returnUrl
* should typically be set by calling controllers as initial
* data, since only controllers know details about current
* context. The fallback below is a bit of guesswork.
*/
class ReturnUrl implements FormDataProviderInterface
{
public function __construct(private readonly UriBuilder $uriBuilder) {}
public function addData(array $result): array
{
if ($result['returnUrl'] !== null) {
return $result;
}
/** @var ServerRequestInterface $request */
$request = $result['request'];
$routeIdentifier = $request->getAttribute('route')?->getOption('_identifier');
if ($routeIdentifier === null) {
// Route could not be found. This usually should not happen in any
// backend context, but is sanitized here nevertheless. returnUrl
// will be kept as null in this case, which may or may not trigger
// subsequent issues.
return $result;
}
$queryParams = $request->getQueryParams();
$relevantQueryParams = [];
foreach ($queryParams as $queryKey => $queryValue) {
if (in_array($queryKey, ['token', 'returnUrl'], true)) {
continue;
}
$relevantQueryParams[$queryKey] = $queryValue;
}
$result['returnUrl'] = (string)$this->uriBuilder->buildUriFromRoute($routeIdentifier, $relevantQueryParams);
return $result;
}
}