1. /Users/ericduran/Sites/drupal/drupal
  2. core
  3. lib
  4. Drupal
  5. Core
  6. Authentication
  7. AuthenticationProviderChallengeInterface.php
 
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<?php
/**
 * @file
 * Contains \Drupal\Core\Authentication\AuthenticationProviderChallengeInterface.
 */
namespace Drupal\Core\Authentication;
use Symfony\Component\HttpFoundation\Request;
/**
 * Generate a challenge when access is denied for unauthenticated users.
 *
 * On a 403 (access denied), if there are no credentials on the request, some
 * authentication methods (e.g. basic auth) require that a challenge is sent to
 * the client.
 */
interface AuthenticationProviderChallengeInterface {
  /**
   * Constructs an exception which is used to generate the challenge.
   *
   * @param \Symfony\Component\HttpFoundation\Request $request
   *   The request.
   * @param \Exception $previous
   *   The previous exception.
   *
   * @return \Symfony\Component\HttpKernel\Exception\HttpExceptionInterface|NULL
   *   An exception to be used in order to generate an authentication challenge.
   */
  public function challengeException(Request $request, \Exception $previous);
}