Same name and namespace in other branches

1. 9 core/modules/file/src/Plugin/rest/resource/FileUploadResource.php \Drupal\file\Plugin\rest\resource\FileUploadResource::post()
2. 8.9.x core/modules/file/src/Plugin/rest/resource/FileUploadResource.php \Drupal\file\Plugin\rest\resource\FileUploadResource::post()
3. 11.x core/modules/file/src/Plugin/rest/resource/FileUploadResource.php \Drupal\file\Plugin\rest\resource\FileUploadResource::post()

Creates a file from an endpoint.

Parameters

\Symfony\Component\HttpFoundation\Request $request: The current request.

string $entity_type_id: The entity type ID.

string $bundle: The entity bundle. This will be the same as $entity_type_id for entity types that don't support bundles.

string $field_name: The field name.

Return value

\Drupal\rest\ModifiedResourceResponse A 201 response, on success.

Throws

\Symfony\Component\HttpKernel\Exception\HttpException Thrown when temporary files cannot be written, a lock cannot be acquired, or when temporary files cannot be moved to their new location.

File

core/modules/file/src/Plugin/rest/resource/FileUploadResource.php, line 279

Class

FileUploadResource

File upload resource.

Namespace

Drupal\file\Plugin\rest\resource

Code

public function post(Request $request, $entity_type_id, $bundle, $field_name) {
    $filename = ContentDispositionFilenameParser::parseFilename($request);
    $field_definition = $this->validateAndLoadFieldDefinition($entity_type_id, $bundle, $field_name);
    $destination = $this->getUploadLocation($field_definition->getSettings());
    // Check the destination file path is writable.
    if (!$this->fileSystem
        ->prepareDirectory($destination, FileSystemInterface::CREATE_DIRECTORY)) {
        throw new HttpException(500, 'Destination file path is not writable');
    }
    $validators = $this->getFileUploadValidators($field_definition->getSettings());
    $prepared_filename = $this->prepareFilename($filename, $validators);
    // Create the file.
    $file_uri = "{$destination}/{$prepared_filename}";
    $temp_file_path = $this->streamUploadData();
    $file_uri = $this->fileSystem
        ->getDestinationFilename($file_uri, FileSystemInterface::EXISTS_RENAME);
    // Lock based on the prepared file URI.
    $lock_id = $this->generateLockIdFromFileUri($file_uri);
    if (!$this->lock
        ->acquire($lock_id)) {
        throw new HttpException(503, sprintf('File "%s" is already locked for writing', $file_uri), NULL, [
            'Retry-After' => 1,
        ]);
    }
    // Begin building file entity.
    $file = File::create([]);
    $file->setOwnerId($this->currentUser
        ->id());
    $file->setFilename($prepared_filename);
    $file->setMimeType($this->mimeTypeGuesser
        ->guessMimeType($prepared_filename));
    $file->setFileUri($temp_file_path);
    // Set the size. This is done in File::preSave() but we validate the file
    // before it is saved.
    $file->setSize(@filesize($temp_file_path));
    // Validate the file against field-level validators first while the file is
    // still a temporary file. Validation is split up in 2 steps to be the same
    // as in \Drupal\file\Upload\FileUploadHandler::handleFileUpload().
    // For backwards compatibility this part is copied from ::validate() to
    // leave that method behavior unchanged.
    // @todo Improve this with a file uploader service in
    //   https://www.drupal.org/project/drupal/issues/2940383
    $violations = $this->fileValidator
        ->validate($file, $validators);
    if (count($violations) > 0) {
        $message = "Unprocessable Entity: file validation failed.\n";
        $errors = [];
        foreach ($violations as $violation) {
            $errors[] = PlainTextOutput::renderFromHtml($violation->getMessage());
        }
        $message .= implode("\n", $errors);
        throw new UnprocessableEntityHttpException($message);
    }
    $file->setFileUri($file_uri);
    // Update the filename with any changes as a result of security or renaming
    // due to an existing file.
    // @todo Remove this duplication by replacing with FileUploadHandler. See
    // https://www.drupal.org/project/drupal/issues/3401734
    $file->setFilename($this->fileSystem
        ->basename($file->getFileUri()));
    // Move the file to the correct location after validation. Use
    // FileSystemInterface::EXISTS_ERROR as the file location has already been
    // determined above in FileSystem::getDestinationFilename().
    try {
        $this->fileSystem
            ->move($temp_file_path, $file_uri, FileSystemInterface::EXISTS_ERROR);
    } catch (FileException $e) {
        throw new HttpException(500, 'Temporary file could not be moved to file location');
    }
    // Second step of the validation on the file object itself now.
    $this->resourceValidate($file);
    $file->save();
    $this->lock
        ->release($lock_id);
    // 201 Created responses return the newly created entity in the response
    // body. These responses are not cacheable, so we add no cacheability
    // metadata here.
    return new ModifiedResourceResponse($file, 201);
}

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