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<?php |
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declare(strict_types=1); |
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/* For licensing terms, see /license.txt */ |
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namespace Chamilo\CoreBundle\Controller\Api; |
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use Chamilo\CoreBundle\Entity\ResourceNode; |
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use Chamilo\CourseBundle\Entity\CDocument; |
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use Doctrine\ORM\EntityManagerInterface; |
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use Exception; |
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use Symfony\Component\HttpFoundation\Request; |
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use Symfony\Component\HttpFoundation\Response; |
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use Symfony\Component\HttpFoundation\StreamedResponse; |
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use Symfony\Component\HttpKernel\KernelInterface; |
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use Chamilo\CoreBundle\Repository\ResourceNodeRepository; |
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use ZipArchive; |
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class DownloadSelectedDocumentsAction |
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{ |
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private KernelInterface $kernel; |
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private ResourceNodeRepository $resourceNodeRepository; |
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public function __construct(KernelInterface $kernel, ResourceNodeRepository $resourceNodeRepository) |
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{ |
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$this->kernel = $kernel; |
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$this->resourceNodeRepository = $resourceNodeRepository; |
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} |
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public function __invoke(Request $request, EntityManagerInterface $em): Response |
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{ |
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ini_set('max_execution_time', '300'); |
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ini_set('memory_limit', '512M'); |
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$data = json_decode($request->getContent(), true); |
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$documentIds = $data['ids'] ?? []; |
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if (empty($documentIds)) { |
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return new Response('No items selected.', Response::HTTP_BAD_REQUEST); |
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} |
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$documents = $em->getRepository(CDocument::class)->findBy(['iid' => $documentIds]); |
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if (empty($documents)) { |
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return new Response('No documents found.', Response::HTTP_NOT_FOUND); |
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} |
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$zipFilePath = $this->createZipFile($documents); |
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if (!$zipFilePath || !file_exists($zipFilePath)) { |
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return new Response('ZIP file not found or could not be created.', Response::HTTP_INTERNAL_SERVER_ERROR); |
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} |
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$fileSize = filesize($zipFilePath); |
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if ($fileSize === false || $fileSize === 0) { |
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error_log('ZIP file is empty or unreadable.'); |
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throw new Exception('ZIP file is empty or unreadable.'); |
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} |
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$response = new StreamedResponse(function () use ($zipFilePath) { |
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$handle = fopen($zipFilePath, 'rb'); |
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if ($handle) { |
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while (!feof($handle)) { |
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echo fread($handle, 8192); |
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ob_flush(); |
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flush(); |
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} |
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fclose($handle); |
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} |
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}); |
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$response->headers->set('Content-Type', 'application/zip'); |
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$response->headers->set('Content-Disposition', 'inline; filename="selected_documents.zip"'); |
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$response->headers->set('Content-Length', (string) $fileSize); |
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return $response; |
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} |
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/** |
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* Creates a ZIP file containing the specified documents. |
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* |
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* @return string The path to the created ZIP file. |
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* @throws Exception If the ZIP file cannot be created or closed. |
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*/ |
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private function createZipFile(array $documents): string |
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{ |
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$cacheDir = $this->kernel->getCacheDir(); |
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$zipFilePath = $cacheDir . '/selected_documents_' . uniqid() . '.zip'; |
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$zip = new ZipArchive(); |
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$result = $zip->open($zipFilePath, ZipArchive::CREATE); |
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if ($result !== true) { |
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throw new Exception('Unable to create ZIP file'); |
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} |
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$projectDir = $this->kernel->getProjectDir(); |
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$baseUploadDir = $projectDir . '/var/upload/resource'; |
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foreach ($documents as $document) { |
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$resourceNode = $document->getResourceNode(); |
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if (!$resourceNode) { |
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error_log('ResourceNode not found for document ID: ' . $document->getId()); |
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continue; |
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} |
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$this->addNodeToZip($zip, $resourceNode, $baseUploadDir); |
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} |
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if (!$zip->close()) { |
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error_log('Failed to close ZIP file.'); |
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throw new Exception('Failed to close ZIP archive'); |
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} |
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return $zipFilePath; |
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} |
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/** |
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* Adds a resource node and its files or children to the ZIP archive. |
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*/ |
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private function addNodeToZip(ZipArchive $zip, ResourceNode $node, string $baseUploadDir, string $currentPath = ''): void |
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{ |
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if ($node->getChildren()->count() > 0) { |
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$relativePath = $currentPath . $node->getTitle() . '/'; |
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$zip->addEmptyDir($relativePath); |
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foreach ($node->getChildren() as $childNode) { |
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$this->addNodeToZip($zip, $childNode, $baseUploadDir, $relativePath); |
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} |
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} elseif ($node->hasResourceFile()) { |
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foreach ($node->getResourceFiles() as $resourceFile) { |
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$filePath = $baseUploadDir . $this->resourceNodeRepository->getFilename($resourceFile); |
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$fileName = $currentPath . $resourceFile->getOriginalName(); |
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if (file_exists($filePath)) { |
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$zip->addFile($filePath, $fileName); |
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} else { |
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error_log('File not found: ' . $filePath); |
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} |
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} |
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} else { |
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error_log('Node has no children or files: ' . $node->getTitle()); |
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} |
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} |
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} |
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chamilo /
chamilo-lms
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