function FileUploadResource::post

Same name and namespace in other branches
  1. 8.9.x core/modules/file/src/Plugin/rest/resource/FileUploadResource.php \Drupal\file\Plugin\rest\resource\FileUploadResource::post()
  2. 10 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 240

Class

FileUploadResource
File upload resource.

Namespace

Drupal\file\Plugin\rest\resource

Code

public function post(Request $request, $entity_type_id, $bundle, $field_name) {
  $filename = $this->validateAndParseContentDispositionHeader($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 = $this->getUploadValidators($field_definition);
  $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);
  if ($this->mimeTypeGuesser instanceof MimeTypeGuesserInterface) {
    $file->setMimeType($this->mimeTypeGuesser
      ->guessMimeType($prepared_filename));
  }
  else {
    $file->setMimeType($this->mimeTypeGuesser
      ->guess($prepared_filename));
    @trigger_error('\\Symfony\\Component\\HttpFoundation\\File\\MimeType\\MimeTypeGuesserInterface is deprecated in drupal:9.1.0 and is removed from drupal:10.0.0. Implement \\Symfony\\Component\\Mime\\MimeTypeGuesserInterface instead. See https://www.drupal.org/node/3133341', E_USER_DEPRECATED);
  }
  $file->setFileUri($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 _file_save_upload_single().
  // 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
  $errors = file_validate($file, $validators);
  if (!empty($errors)) {
    $message = "Unprocessable Entity: file validation failed.\n";
    $message .= implode("\n", array_map([
      PlainTextOutput::class,
      'renderFromHtml',
    ], $errors));
    throw new UnprocessableEntityHttpException($message);
  }
  $file->setFileUri($file_uri);
  // 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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