RequireJsController.php

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<?php
declare(strict_types = 1);
namespace ‪TYPO3\CMS\Core\Controller;
 
/*
 * 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!
 */
 
use Psr\Http\Message\ResponseInterface;
use Psr\Http\Message\ServerRequestInterface;
use ‪TYPO3\CMS\Core\Http\JsonResponse;
use ‪TYPO3\CMS\Core\Page\PageRenderer;
use ‪TYPO3\CMS\Core\Utility\GeneralUtility;
 
class ‪RequireJsController
{
    protected ‪$pageRenderer;
 
    public function ‪__construct()
    {
        $this->pageRenderer = GeneralUtility::makeInstance(PageRenderer::class);
    }
 
    public function ‪retrieveConfiguration(ServerRequestInterface $request): ResponseInterface
    {
        $name = $request->getQueryParams()['name'] ?? null;
        if (empty($name) || !is_string($name)) {
            return new ‪JsonResponse(null, 404);
        }
        $configuration = $this->‪findConfiguration($name);
        return new JsonResponse($configuration, !empty($configuration) ? 200 : 404);
    }
 
    protected function ‪findConfiguration(string $name): array
    {
        $relevantConfiguration = [];
        $this->pageRenderer->loadRequireJs();
        $configuration = $this->pageRenderer->getRequireJsConfig(‪PageRenderer::REQUIREJS_SCOPE_RESOLVE);
 
        $shim = $configuration['shim'] ?? [];
        foreach ($shim as $baseModuleName => $baseModuleConfiguration) {
            if (strpos($name . '/', $baseModuleName . '/') === 0) {
                $relevantConfiguration['shim'][$baseModuleName] = $baseModuleConfiguration;
            }
        }
 
        $paths = $configuration['paths'] ?? [];
        foreach ($paths as $baseModuleName => $baseModulePath) {
            if (strpos($name . '/', $baseModuleName . '/') === 0) {
                $relevantConfiguration['paths'][$baseModuleName] = $baseModulePath;
            }
        }
 
        $packages = $configuration['packages'] ?? [];
        foreach ($packages as $package) {
            if (!empty($package['name'])
                && strpos($name . '/', $package['name'] . '/') === 0
            ) {
                $relevantConfiguration['packages'][] = $package;
            }
        }
 
        return $relevantConfiguration;
    }
}