Classes List

Symfony\Component\Security\Http\Firewall\AbstractAuthenticationListener

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<?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\Firewall;

use Symfony\Component\Security\Http\Session\SessionAuthenticationStrategyInterface;
use Symfony\Component\Security\Http\Authentication\AuthenticationFailureHandlerInterface;
use Symfony\Component\Security\Http\Authentication\AuthenticationSuccessHandlerInterface;
use Symfony\Component\Security\Http\RememberMe\RememberMeServicesInterface;
use Symfony\Component\Security\Core\Security;
use Symfony\Component\Security\Core\Authentication\AuthenticationManagerInterface;
use Symfony\Component\Security\Core\Authentication\Token\Storage\TokenStorageInterface;
use Symfony\Component\Security\Core\Authentication\Token\UsernamePasswordToken;
use Symfony\Component\Security\Core\Exception\AuthenticationException;
use Symfony\Component\Security\Core\Exception\SessionUnavailableException;
use Psr\Log\LoggerInterface;
use Symfony\Component\HttpKernel\Event\GetResponseEvent;
use Symfony\Component\HttpFoundation\Request;
use Symfony\Component\HttpFoundation\Response;
use Symfony\Component\Security\Core\Authentication\Token\TokenInterface;
use Symfony\Component\EventDispatcher\EventDispatcherInterface;
use Symfony\Component\Security\Http\Event\InteractiveLoginEvent;
use Symfony\Component\Security\Http\SecurityEvents;
use Symfony\Component\Security\Http\HttpUtils;

/** * The AbstractAuthenticationListener is the preferred base class for all * browser-/HTTP-based authentication requests. * * Subclasses likely have to implement the following: * - an TokenInterface to hold authentication related data * - an AuthenticationProvider to perform the actual authentication of the * token, retrieve the UserInterface implementation from a database, and * perform the specific account checks using the UserChecker * * By default, this listener only is active for a specific path, e.g. * /login_check. If you want to change this behavior, you can overwrite the * requiresAuthentication() method. * * @author Fabien Potencier <fabien@symfony.com> * @author Johannes M. Schmitt <schmittjoh@gmail.com> */
abstract class AbstractAuthenticationListener implements ListenerInterface
{
    protected $options;
    protected $logger;
    protected $authenticationManager;
    protected $providerKey;
    protected $httpUtils;

    private $tokenStorage;
    private $sessionStrategy;
    private $dispatcher;
    private $successHandler;
    private $failureHandler;
    private $rememberMeServices;

    /** * @param TokenStorageInterface $tokenStorage A TokenStorageInterface instance * @param AuthenticationManagerInterface $authenticationManager An AuthenticationManagerInterface instance * @param SessionAuthenticationStrategyInterface $sessionStrategy * @param HttpUtils $httpUtils An HttpUtils instance * @param string $providerKey * @param AuthenticationSuccessHandlerInterface $successHandler * @param AuthenticationFailureHandlerInterface $failureHandler * @param array $options An array of options for the processing of a * successful, or failed authentication attempt * @param LoggerInterface|null $logger A LoggerInterface instance * @param EventDispatcherInterface|null $dispatcher An EventDispatcherInterface instance * * @throws \InvalidArgumentException */
    public function __construct(TokenStorageInterface $tokenStorageAuthenticationManagerInterface $authenticationManagerSessionAuthenticationStrategyInterface $sessionStrategyHttpUtils $httpUtils$providerKeyAuthenticationSuccessHandlerInterface $successHandlerAuthenticationFailureHandlerInterface $failureHandlerarray $options = array(), LoggerInterface $logger = nullEventDispatcherInterface $dispatcher = null)
    {
        if (empty($providerKey)) {
            throw new \InvalidArgumentException('$providerKey must not be empty.');
        }

        $this->tokenStorage = $tokenStorage;
        $this->authenticationManager = $authenticationManager;
        $this->sessionStrategy = $sessionStrategy;
        $this->providerKey = $providerKey;
        $this->successHandler = $successHandler;
        $this->failureHandler = $failureHandler;
        $this->options = array_merge(array(
            'check_path' => '/login_check',
            'login_path' => '/login',
            'always_use_default_target_path' => false,
            'default_target_path' => '/',
            'target_path_parameter' => '_target_path',
            'use_referer' => false,
            'failure_path' => null,
            'failure_forward' => false,
            'require_previous_session' => true,
        ), $options);
        $this->logger = $logger;
        $this->dispatcher = $dispatcher;
        $this->httpUtils = $httpUtils;
    }

    /** * Sets the RememberMeServices implementation to use. */
    public function setRememberMeServices(RememberMeServicesInterface $rememberMeServices)
    {
        $this->rememberMeServices = $rememberMeServices;
    }

    /** * Handles form based authentication. * * @throws \RuntimeException * @throws SessionUnavailableException */
    final public function handle(GetResponseEvent $event)
    {
        $request = $event->getRequest();

        if (!$this->requiresAuthentication($request)) {
            return;
        }

        if (!$request->hasSession()) {
            throw new \RuntimeException('This authentication method requires a session.');
        }

        try {
            if ($this->options['require_previous_session'&& !$request->hasPreviousSession()) {
                throw new SessionUnavailableException('Your session has timed out, or you have disabled cookies.');
            }

            if (null === $returnValue = $this->attemptAuthentication($request)) {
                return;
            }

            if ($returnValue instanceof TokenInterface) {
                $this->sessionStrategy->onAuthentication($request$returnValue);

                $response = $this->onSuccess($request$returnValue);
            } elseif ($returnValue instanceof Response) {
                $response = $returnValue;
            } else {
                throw new \RuntimeException('attemptAuthentication() must either return a Response, an implementation of TokenInterface, or null.');
            }
        } catch (AuthenticationException $e) {
            $response = $this->onFailure($request$e);
        }

        $event->setResponse($response);
    }

    /** * Whether this request requires authentication. * * The default implementation only processes requests to a specific path, * but a subclass could change this to only authenticate requests where a * certain parameters is present. * * @return bool */
    protected function requiresAuthentication(Request $request)
    {
        return $this->httpUtils->checkRequestPath($request$this->options['check_path']);
    }

    /** * Performs authentication. * * @return TokenInterface|Response|null The authenticated token, null if full authentication is not possible, or a Response * * @throws AuthenticationException if the authentication fails */
    abstract protected function attemptAuthentication(Request $request);

    private function onFailure(Request $requestAuthenticationException $failed)
    {
        if (null !== $this->logger) {
            $this->logger->info('Authentication request failed.'array('exception' => $failed));
        }

        $token = $this->tokenStorage->getToken();
        if ($token instanceof UsernamePasswordToken && $this->providerKey === $token->getProviderKey()) {
            $this->tokenStorage->setToken(null);
        }

        $response = $this->failureHandler->onAuthenticationFailure($request$failed);

        if (!$response instanceof Response) {
            throw new \RuntimeException('Authentication Failure Handler did not return a Response.');
        }

        return $response;
    }

    private function onSuccess(Request $requestTokenInterface $token)
    {
        if (null !== $this->logger) {
            $this->logger->info('User has been authenticated successfully.'array('username' => $token->getUsername()));
        }

        $this->tokenStorage->setToken($token);

        $session = $request->getSession();
        $session->remove(Security::AUTHENTICATION_ERROR);
        $session->remove(Security::LAST_USERNAME);

        if (null !== $this->dispatcher) {
            $loginEvent = new InteractiveLoginEvent($request$token);
            $this->dispatcher->dispatch(SecurityEvents::INTERACTIVE_LOGIN$loginEvent);
        }

        $response = $this->successHandler->onAuthenticationSuccess($request$token);

        if (!$response instanceof Response) {
            throw new \RuntimeException('Authentication Success Handler did not return a Response.');
        }

        if (null !== $this->rememberMeServices) {
            $this->rememberMeServices->loginSuccess($request$response$token);
        }

        return $response;
    }
}