public function SimpleFbConnectController::returnFromFb in Simple FB Connect 8.3

Same name and namespace in other branches

1. 8.2 src/Controller/SimpleFbConnectController.php \Drupal\simple_fb_connect\Controller\SimpleFbConnectController::returnFromFb()

Response for path 'user/simple-fb-connect/return'.

Facebook returns the user here after user has authenticated in FB.

1 string reference to 'SimpleFbConnectController::returnFromFb'

simple_fb_connect.routing.yml in ./simple_fb_connect.routing.yml

simple_fb_connect.routing.yml

File

src/Controller/SimpleFbConnectController.php, line 100

Class

SimpleFbConnectController

Returns responses for Simple FB Connect module routes.

Namespace

Drupal\simple_fb_connect\Controller

Code

public function returnFromFb() {

  // Try to get an instance of Facebook service.
  if (!($facebook = $this->fbFactory
    ->getFbService())) {
    drupal_set_message($this
      ->t('Simple FB Connect is not configured properly. Please contact site administrator.'), 'error');
    return $this
      ->redirect('user.login');
  }

  // Facebook service was returned, inject it to $fbManager.
  $this->fbManager
    ->setFacebookService($facebook);

  // Read user's access token from Facebook.
  if (!($access_token = $this->fbManager
    ->getAccessTokenFromFb())) {
    drupal_set_message($this
      ->t('Facebook login failed.'), 'error');
    return $this
      ->redirect('user.login');
  }

  // Check that user authorized our app to access user's email address.
  if (!$this->fbManager
    ->checkPermission('email')) {
    if ($site_name = $this
      ->config('system.site')
      ->get('name')) {
      drupal_set_message($this
        ->t('Facebook login failed. @site_name requires permission to get your email address from Facebook. Please try again and give the permission.', [
        '@site_name' => $site_name,
      ]), 'error');
    }
    else {
      drupal_set_message($this
        ->t('Facebook login failed. This site requires permission to get your email address from Facebook. Please try again and give the permission.'), 'error');
    }
    $this->persistentDataHandler
      ->set('reprompt', TRUE);
    return $this
      ->redirect('user.login');
  }

  // Get user's FB profile from Facebook API.
  if (!($fb_profile = $this->fbManager
    ->getFbProfile())) {
    drupal_set_message($this
      ->t('Facebook login failed, Facebook profile could not be loaded. Please contact site administrator.'), 'error');
    return $this
      ->redirect('user.login');
  }

  // Get user's email from the FB profile.
  if (!($email = $this->fbManager
    ->getEmail($fb_profile))) {
    drupal_set_message($this
      ->t('Facebook login failed. This site requires an email address. Please add one in your Facebook profile and try again.'), 'error');
    return $this
      ->redirect('user.login');
  }

  // Save access token to session so that event subscribers can call FB API.
  $this->persistentDataHandler
    ->set('access_token', $access_token);

  // If we have an existing user with the same email address, try to log in.
  if ($drupal_user = $this->userManager
    ->loadUserByProperty('mail', $email)) {
    if ($this->userManager
      ->loginUser($drupal_user)) {

      // Redirect the user to post login path.
      return new RedirectResponse($this->postLoginManager
        ->getPostLoginPath());
    }
    else {

      // Login was not successful. Unset access token from session.
      $this->persistentDataHandler
        ->set('access_token', NULL);
      return $this
        ->redirect('user.login');
    }
  }

  // If there was no existing user, try to create a new user.
  $fbid = $fb_profile
    ->getField('id');
  $fb_profile_pic = $this->fbManager
    ->getFbProfilePic();
  if ($drupal_user = $this->userManager
    ->createUser($fb_profile
    ->getField('name'), $email, $fbid, $fb_profile_pic)) {

    // Log the newly created user in.
    if ($this->userManager
      ->loginUser($drupal_user)) {

      // Check if new users should be redirected to Drupal user form.
      if ($this->postLoginManager
        ->getRedirectNewUsersToUserFormSetting()) {
        drupal_set_message($this
          ->t("Please take a moment to confirm your account details. Since you logged in with Facebook, you don't need to update your password."));
        return new RedirectResponse($this->postLoginManager
          ->getPathToUserForm($drupal_user));
      }

      // Use normal post login path if user wasn't redirected to user form.
      return new RedirectResponse($this->postLoginManager
        ->getPostLoginPath());
    }
    else {

      // New user was created but the account is pending approval.
      // Unset access token from session.
      $this->persistentDataHandler
        ->set('access_token', NULL);
      drupal_set_message($this
        ->t('You will receive an email when a site administrator activates your account.'), 'warning');
      return $this
        ->redirect('user.login');
    }
  }
  else {

    // User could not be created. Unset access token from session.
    $this->persistentDataHandler
      ->set('access_token', NULL);
    return $this
      ->redirect('user.login');
  }

  // This should never be reached, user should have been redirected already.
  $this->persistentDataHandler
    ->set('access_token', NULL);
  throw new AccessDeniedHttpException();
}