class S3CorsUploadAjaxController in Flysystem - S3 2.0.x

Defines a controller to respond to S3 CORS upload AJAX requests.

Hierarchy

• class \Drupal\Core\Controller\ControllerBase implements ContainerInjectionInterface uses LoggerChannelTrait, MessengerTrait, RedirectDestinationTrait, StringTranslationTrait
  • class \Drupal\flysystem_s3\Controller\S3CorsUploadAjaxController

File

src/Controller/S3CorsUploadAjaxController.php, line 18

Namespace

Drupal\flysystem_s3\Controller

class S3CorsUploadAjaxController extends ControllerBase {

  /**
   * The form builder.
   *
   * @var \Drupal\flysystem\FlysystemFactory
   */
  protected $flysystemFactory;

  /**
   * The file system.
   *
   * @var \Drupal\Core\File\FileSystemInterface
   */
  protected $fileSystem;

  /**
   * {@inheritdoc}
   */
  public static function create(ContainerInterface $container) {
    return new static($container
      ->get('flysystem_factory'), $container
      ->get('file_system'));
  }

  /**
   * Constructs an S3CorsUploadAjaxController object.
   *
   * @param \Drupal\flysystem\FlysystemFactory $flysystem_factory
   *   The Flysystem factory.
   * @param \Drupal\Core\File\FileSystemInterface $file_system
   *   The file system.
   */
  public function __construct(FlysystemFactory $flysystem_factory, FileSystemInterface $file_system) {
    $this->flysystemFactory = $flysystem_factory;
    $this->fileSystem = $file_system;
  }

  /**
   * Returns the signed request.
   *
   * @param \Symfony\Component\HttpFoundation\Request $request
   *   The current request.
   *
   * @return \Symfony\Component\HttpFoundation\JsonResponse
   *   A JsonResponse object.
   */
  public function signRequest(Request $request) {
    $post = $request->request
      ->all();

    /** @var \Drupal\flysystem_s3\Flysystem\Adapter\S3Adapter $adapter */
    $scheme = \Drupal::service('file_system')
      ->uriScheme($post['destination']);
    $adapter = $this->flysystemFactory
      ->getPlugin($scheme)
      ->getAdapter();
    $client = $adapter
      ->getClient();
    $bucket = $adapter
      ->getBucket();
    $destination = $adapter
      ->applyPathPrefix(StreamWrapperManager::getTarget($post['destination']));
    $options = [
      [
        'acl' => $post['acl'],
      ],
      [
        'bucket' => $bucket,
      ],
      [
        'starts-with',
        '$key',
        $destination . '/',
      ],
    ];

    // Retrieve the file name and build the URI.
    // Destination does not contain a prefix as it is applied by the fly system.
    $uri = \Drupal::service('file_system')
      ->createFilename($post['filename'], $post['destination']);

    // Apply the prefix to the URI and use it as a key in the POST request.
    $post['key'] = $adapter
      ->applyPathPrefix(StreamWrapperManager::getTarget($uri));

    // Create a temporary file to return with a file ID in the response.
    $file = File::create([
      'uri' => $post['key'],
      'filesize' => $post['filesize'],
      'filename' => $post['filename'],
      'filemime' => $post['filemime'],
      'uid' => \Drupal::currentUser()
        ->getAccount()
        ->id(),
    ]);
    $file
      ->save();

    // Remove values not necessary for the request to Amazon.
    unset($post['destination']);
    unset($post['filename']);
    unset($post['filemime']);
    unset($post['filesize']);

    // @todo Make this interval configurable.
    $expiration = '+5 hours';
    $postObject = new PostObjectV4($client, $bucket, $post, $options, $expiration);
    $data = [];
    $data['attributes'] = $postObject
      ->getFormAttributes();
    $data['inputs'] = $postObject
      ->getFormInputs();
    $data['options'] = $options;
    $data['fid'] = $file
      ->id();
    return new JsonResponse($data);
  }

}

Members

Name	Modifiers	Type	Description	Overrides
ControllerBase::$configFactory	protected	property	The configuration factory.
ControllerBase::$currentUser	protected	property	The current user service.	1
ControllerBase::$entityFormBuilder	protected	property	The entity form builder.
ControllerBase::$entityTypeManager	protected	property	The entity type manager.
ControllerBase::$formBuilder	protected	property	The form builder.	2
ControllerBase::$keyValue	protected	property	The key-value storage.	1
ControllerBase::$languageManager	protected	property	The language manager.	1
ControllerBase::$moduleHandler	protected	property	The module handler.	2
ControllerBase::$stateService	protected	property	The state service.
ControllerBase::cache	protected	function	Returns the requested cache bin.
ControllerBase::config	protected	function	Retrieves a configuration object.
ControllerBase::container	private	function	Returns the service container.
ControllerBase::currentUser	protected	function	Returns the current user.	1
ControllerBase::entityFormBuilder	protected	function	Retrieves the entity form builder.
ControllerBase::entityTypeManager	protected	function	Retrieves the entity type manager.
ControllerBase::formBuilder	protected	function	Returns the form builder service.	2
ControllerBase::keyValue	protected	function	Returns a key/value storage collection.	1
ControllerBase::languageManager	protected	function	Returns the language manager service.	1
ControllerBase::moduleHandler	protected	function	Returns the module handler.	2
ControllerBase::redirect	protected	function	Returns a redirect response object for the specified route.
ControllerBase::state	protected	function	Returns the state storage service.
LoggerChannelTrait::$loggerFactory	protected	property	The logger channel factory service.
LoggerChannelTrait::getLogger	protected	function	Gets the logger for a specific channel.
LoggerChannelTrait::setLoggerFactory	public	function	Injects the logger channel factory.
MessengerTrait::$messenger	protected	property	The messenger.	27
MessengerTrait::messenger	public	function	Gets the messenger.	27
MessengerTrait::setMessenger	public	function	Sets the messenger.
RedirectDestinationTrait::$redirectDestination	protected	property	The redirect destination service.	1
RedirectDestinationTrait::getDestinationArray	protected	function	Prepares a 'destination' URL query parameter for use with \Drupal\Core\Url.
RedirectDestinationTrait::getRedirectDestination	protected	function	Returns the redirect destination service.
RedirectDestinationTrait::setRedirectDestination	public	function	Sets the redirect destination service.
S3CorsUploadAjaxController::$fileSystem	protected	property	The file system.
S3CorsUploadAjaxController::$flysystemFactory	protected	property	The form builder.
S3CorsUploadAjaxController::create	public static	function	Instantiates a new instance of this class. Overrides ControllerBase::create
S3CorsUploadAjaxController::signRequest	public	function	Returns the signed request.
S3CorsUploadAjaxController::__construct	public	function	Constructs an S3CorsUploadAjaxController object.
StringTranslationTrait::$stringTranslation	protected	property	The string translation service.	4
StringTranslationTrait::formatPlural	protected	function	Formats a string containing a count of items.
StringTranslationTrait::getNumberOfPlurals	protected	function	Returns the number of plurals supported by a given language.
StringTranslationTrait::getStringTranslation	protected	function	Gets the string translation service.
StringTranslationTrait::setStringTranslation	public	function	Sets the string translation service to use.	2
StringTranslationTrait::t	protected	function	Translates a string to the current language or to a given language.