ReactionHandler.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\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;
 
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');
    }
}