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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\Reactions\Http;
use Psr\Http\Message\ResponseInterface;
use Psr\Http\Message\ServerRequestInterface;
use Psr\Log\LoggerInterface;
use TYPO3\CMS\Core\Localization\LanguageServiceFactory;
use TYPO3\CMS\Reactions\Authentication\ReactionUserAuthentication;
use TYPO3\CMS\Reactions\Exception\ReactionNotFoundException;
use TYPO3\CMS\Reactions\Model\ReactionInstruction;
use TYPO3\CMS\Reactions\ReactionRegistry;
/**
* Endpoint for triggering the reaction handler.
*
* Resolves the payload and calls the actual Reaction Type with the request,
* the payload, and sends the response in return.
*
* At this point, the evaluation etc. all need to have happened.
*
* @internal This is a specific controller implementation and is not considered part of the Public TYPO3 API.
*/
class ReactionHandler
{
public function __construct(
private readonly ReactionRegistry $reactionRegistry,
private readonly LoggerInterface $logger,
private readonly LanguageServiceFactory $languageServiceFactory
) {}
public function handleReaction(ServerRequestInterface $request, ?ReactionInstruction $reactionInstruction, ReactionUserAuthentication $user): ResponseInterface
{
if ($reactionInstruction === null) {
$this->logger->warning('No reaction given', [
'request' => $request,
]);
throw new ReactionNotFoundException('No reaction given', 1669757255);
}
$reaction = $this->reactionRegistry->getReactionByType($reactionInstruction->getType());
if ($reaction === null) {
throw new ReactionNotFoundException('No reaction found for given reaction type', 1662458842);
}
// Prepare the user and language object before calling the reaction execution process
$GLOBALS['LANG'] = $this->languageServiceFactory->createFromUserPreferences($user);
$GLOBALS['BE_USER'] = $user;
$payload = $this->getPayload($request);
$response = $reaction->react($request, $payload, $reactionInstruction);
$this->logger->info('Reaction was handled successfully', [
'request' => $request,
]);
return $this->buildReactionResponse($response);
}
protected function getPayload(ServerRequestInterface $request): array
{
$body = (string)$request->getBody();
try {
$payload = json_decode($body, true, 512, JSON_THROW_ON_ERROR);
return is_array($payload) ? $payload : [];
} catch (\JsonException $e) {
// do nothing
return [];
}
}
protected function buildReactionResponse(ResponseInterface $response): ResponseInterface
{
return $response
->withHeader('X-TYPO3-Reaction-Success', $response->getStatusCode() >= 200 && $response->getStatusCode() < 300 ? 'true' : 'false');
}
}