You are here

class ApiController in Facebook Instant Articles 8.2

Same name and namespace in other branches
  1. 3.x src/Controller/ApiController.php \Drupal\fb_instant_articles\Controller\ApiController

Controller to handle Facebook login callback.

Hierarchy

Expanded class hierarchy of ApiController

File

src/Controller/ApiController.php, line 17

Namespace

Drupal\fb_instant_articles\Controller
View source
class ApiController extends ControllerBase {

  /**
   * Config factory service.
   *
   * @var \Drupal\Core\Config\ConfigFactoryInterface
   */
  protected $configFactory;

  /**
   * Creates a new \Drupal\fb_instant_articles\Controller\ApiController.
   *
   * @param \Drupal\Core\Config\ConfigFactoryInterface $config_factory
   *   Config factory service.
   */
  public function __construct(ConfigFactoryInterface $config_factory) {
    $this->configFactory = $config_factory;
  }

  /**
   * {@inheritdoc}
   */
  public static function create(ContainerInterface $container) {
    return new static($container
      ->get('config.factory'));
  }

  /**
   * Handle Facebook login callback.
   */
  public function facebookLogin() {
    $config = $this->configFactory
      ->getEditable('fb_instant_articles.settings');
    $fb = new Facebook([
      'app_id' => $config
        ->get('app_id'),
      'app_secret' => $config
        ->get('app_secret'),
      'default_graph_version' => 'v2.5',
    ]);
    $helper = $fb
      ->getRedirectLoginHelper();

    // Grab the user access token based on callback response and report back an
    // error if we weren't able to get one.
    try {
      $access_token = $helper
        ->getAccessToken();
      if ($access_token == NULL) {
        $error_msg = $this
          ->t('We failed to authenticate your Facebook account with this module. Please try again.');
        $this
          ->messenger()
          ->addError($error_msg);
      }
      else {

        // Confirm that the person granted the necessary permissions before
        // proceeding.
        $permissions = $fb
          ->get('/me/permissions', $access_token)
          ->getGraphEdge();
        $rejected_permissions = [];
        foreach ($permissions as $permission) {
          if ($permission
            ->getField('status') != 'granted') {
            $rejected_permissions[] = $permission
              ->getField('permission');
          }
        }
        if (!empty($rejected_permissions)) {
          $error_msg = $this
            ->t('You did not grant the following required permissions in the Facebook authentication process: @permissions. Please try again.', [
            '@permissions' => implode(', ', $rejected_permissions),
          ]);
          $this
            ->messenger()
            ->addError($error_msg);
        }
        else {

          // Store this user access token to the database.
          $config
            ->set('access_token', $access_token
            ->getValue())
            ->save();
          $this
            ->messenger()
            ->addStatus('Facebook authentication was successful. Access token obtained.');
        }
      }
    } catch (FacebookResponseException $e) {
      $error_msg = $this
        ->t('We received the following error while attempting to authenticate your Facebook account: @error', [
        '@error' => $e
          ->getMessage(),
      ]);
      $this
        ->messenger()
        ->addError($error_msg);
    } catch (FacebookSDKException $e) {
      $error_msg = $this
        ->t('We received the following error while attempting to authenticate your Facebook account: @error', [
        '@error' => $e
          ->getMessage(),
      ]);
      $this
        ->messenger()
        ->addError($error_msg);
    }
    return new RedirectResponse(Url::fromRoute('fb_instant_articles.api_settings_form')
      ->toString());
  }

}

Members

Namesort descending Modifiers Type Description Overrides
ApiController::$configFactory protected property Config factory service. Overrides ControllerBase::$configFactory
ApiController::create public static function Instantiates a new instance of this class. Overrides ControllerBase::create
ApiController::facebookLogin public function Handle Facebook login callback.
ApiController::__construct public function Creates a new \Drupal\fb_instant_articles\Controller\ApiController.
ControllerBase::$currentUser protected property The current user service. 1
ControllerBase::$entityFormBuilder protected property The entity form builder.
ControllerBase::$entityManager protected property The entity manager.
ControllerBase::$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::$stateService protected property The state service.
ControllerBase::cache protected function Returns the requested cache bin.
ControllerBase::config protected function Retrieves a configuration object.
ControllerBase::container private function Returns the service container.
ControllerBase::currentUser protected function Returns the current user. 1
ControllerBase::entityFormBuilder protected function Retrieves the entity form builder.
ControllerBase::entityManager Deprecated protected function Retrieves the entity manager service.
ControllerBase::entityTypeManager protected function Retrieves the entity type manager.
ControllerBase::formBuilder protected function Returns the form builder service. 2
ControllerBase::keyValue protected function Returns a key/value storage collection. 1
ControllerBase::languageManager protected function Returns the language manager service. 1
ControllerBase::moduleHandler protected function Returns the module handler. 2
ControllerBase::redirect protected function Returns a redirect response object for the specified route. Overrides UrlGeneratorTrait::redirect
ControllerBase::state protected function Returns the state storage service.
LinkGeneratorTrait::$linkGenerator protected property The link generator. 1
LinkGeneratorTrait::getLinkGenerator Deprecated protected function Returns the link generator.
LinkGeneratorTrait::l Deprecated protected function Renders a link to a route given a route name and its parameters.
LinkGeneratorTrait::setLinkGenerator Deprecated public function Sets the link generator 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. 29
MessengerTrait::messenger public function Gets the messenger. 29
MessengerTrait::setMessenger public function Sets the messenger.
RedirectDestinationTrait::$redirectDestination protected property The redirect destination service. 1
RedirectDestinationTrait::getDestinationArray protected function Prepares a 'destination' URL query parameter for use with \Drupal\Core\Url.
RedirectDestinationTrait::getRedirectDestination protected function Returns the redirect destination service.
RedirectDestinationTrait::setRedirectDestination public function Sets the redirect destination service.
StringTranslationTrait::$stringTranslation protected property The string translation service. 1
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.
UrlGeneratorTrait::$urlGenerator protected property The url generator.
UrlGeneratorTrait::getUrlGenerator Deprecated protected function Returns the URL generator service.
UrlGeneratorTrait::setUrlGenerator Deprecated public function Sets the URL generator service.
UrlGeneratorTrait::url Deprecated protected function Generates a URL or path for a specific route based on the given parameters.