<?php/* * This file is part of the Symfony package. * * (c) Fabien Potencier <fabien@symfony.com> * * For the full copyright and license information, please view the LICENSE * file that was distributed with this source code. */namespace Symfony\Component\Security\Http\Authentication;use Symfony\Component\HttpFoundation\Request;use Symfony\Component\HttpFoundation\RequestStack;use Symfony\Component\Security\Core\Exception\AuthenticationException;use Symfony\Component\Security\Core\Security;/** * Extracts Security Errors from Request. * * @author Boris Vujicic <boris.vujicic@gmail.com> */class AuthenticationUtils{ private $requestStack; public function __construct(RequestStack $requestStack) { $this->requestStack = $requestStack; } /** * @return AuthenticationException|null */ public function getLastAuthenticationError(bool $clearSession = true) { $request = $this->getRequest(); $authenticationException = null; if ($request->attributes->has(Security::AUTHENTICATION_ERROR)) { $authenticationException = $request->attributes->get(Security::AUTHENTICATION_ERROR); } elseif ($request->hasSession() && ($session = $request->getSession())->has(Security::AUTHENTICATION_ERROR)) { $authenticationException = $session->get(Security::AUTHENTICATION_ERROR); if ($clearSession) { $session->remove(Security::AUTHENTICATION_ERROR); } } return $authenticationException; } /** * @return string */ public function getLastUsername() { $request = $this->getRequest(); if ($request->attributes->has(Security::LAST_USERNAME)) { return $request->attributes->get(Security::LAST_USERNAME) ?? ''; } return $request->hasSession() ? ($request->getSession()->get(Security::LAST_USERNAME) ?? '') : ''; } /** * @throws \LogicException */ private function getRequest(): Request { $request = $this->requestStack->getCurrentRequest(); if (null === $request) { throw new \LogicException('Request should exist so it can be processed for error.'); } return $request; }}