Symfony Profiler

<?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\Guard\Firewall;
use Psr\Log\LoggerInterface;
use Symfony\Component\HttpFoundation\Request;
use Symfony\Component\HttpFoundation\Response;
use Symfony\Component\HttpKernel\Event\GetResponseEvent;
use Symfony\Component\Security\Core\Authentication\AuthenticationManagerInterface;
use Symfony\Component\Security\Core\Authentication\Token\TokenInterface;
use Symfony\Component\Security\Core\Exception\AccountStatusException;
use Symfony\Component\Security\Core\Exception\AuthenticationException;
use Symfony\Component\Security\Core\Exception\BadCredentialsException;
use Symfony\Component\Security\Core\Exception\UsernameNotFoundException;
use Symfony\Component\Security\Guard\AbstractGuardAuthenticator;
use Symfony\Component\Security\Guard\AuthenticatorInterface;
use Symfony\Component\Security\Guard\GuardAuthenticatorHandler;
use Symfony\Component\Security\Guard\GuardAuthenticatorInterface;
use Symfony\Component\Security\Guard\Token\PreAuthenticationGuardToken;
use Symfony\Component\Security\Http\Firewall\ListenerInterface;
use Symfony\Component\Security\Http\RememberMe\RememberMeServicesInterface;
/**
* Authentication listener for the "guard" system.
*
* @author Ryan Weaver <ryan@knpuniversity.com>
* @author Amaury Leroux de Lens <amaury@lerouxdelens.com>
*/
class GuardAuthenticationListener implements ListenerInterface
{
private $guardHandler;
private $authenticationManager;
private $providerKey;
private $guardAuthenticators;
private $logger;
private $rememberMeServices;
private $hideUserNotFoundExceptions;
/**
* @param GuardAuthenticatorHandler $guardHandler The Guard handler
* @param AuthenticationManagerInterface $authenticationManager An AuthenticationManagerInterface instance
* @param string $providerKey The provider (i.e. firewall) key
* @param iterable|AuthenticatorInterface[] $guardAuthenticators The authenticators, with keys that match what's passed to GuardAuthenticationProvider
* @param LoggerInterface $logger A LoggerInterface instance
*/
public function __construct(GuardAuthenticatorHandler $guardHandler, AuthenticationManagerInterface $authenticationManager, $providerKey, $guardAuthenticators, LoggerInterface $logger = null, $hideUserNotFoundExceptions = true)
{
if (empty($providerKey)) {
throw new \InvalidArgumentException('$providerKey must not be empty.');
}
$this->guardHandler = $guardHandler;
$this->authenticationManager = $authenticationManager;
$this->providerKey = $providerKey;
$this->guardAuthenticators = $guardAuthenticators;
$this->logger = $logger;
$this->hideUserNotFoundExceptions = $hideUserNotFoundExceptions;
}
/**
* Iterates over each authenticator to see if each wants to authenticate the request.
*/
public function handle(GetResponseEvent $event)
{
if (null !== $this->logger) {
$context = ['firewall_key' => $this->providerKey];
if ($this->guardAuthenticators instanceof \Countable || \is_array($this->guardAuthenticators)) {
$context['authenticators'] = \count($this->guardAuthenticators);
}
$this->logger->debug('Checking for guard authentication credentials.', $context);
}
foreach ($this->guardAuthenticators as $key => $guardAuthenticator) {
// get a key that's unique to *this* guard authenticator
// this MUST be the same as GuardAuthenticationProvider
$uniqueGuardKey = $this->providerKey.'_'.$key;
$this->executeGuardAuthenticator($uniqueGuardKey, $guardAuthenticator, $event);
if ($event->hasResponse()) {
if (null !== $this->logger) {
$this->logger->debug('The "{authenticator}" authenticator set the response. Any later authenticator will not be called', ['authenticator' => \get_class($guardAuthenticator)]);
}
break;
}
}
}
private function executeGuardAuthenticator($uniqueGuardKey, GuardAuthenticatorInterface $guardAuthenticator, GetResponseEvent $event)
{
$request = $event->getRequest();
try {
// abort the execution of the authenticator if it doesn't support the request
if ($guardAuthenticator instanceof AuthenticatorInterface) {
if (null !== $this->logger) {
$this->logger->debug('Checking support on guard authenticator.', ['firewall_key' => $this->providerKey, 'authenticator' => \get_class($guardAuthenticator)]);
}
if (!$guardAuthenticator->supports($request)) {
if (null !== $this->logger) {
$this->logger->debug('Guard authenticator does not support the request.', ['firewall_key' => $this->providerKey, 'authenticator' => \get_class($guardAuthenticator)]);
}
return;
}
// as there was a support for given request,
// authenticator is expected to give not-null credentials.
$credentialsCanBeNull = false;
} else {
// deprecated since version 3.4, to be removed in 4.0
$credentialsCanBeNull = true;
}
if (null !== $this->logger) {
$this->logger->debug('Calling getCredentials() on guard authenticator.', ['firewall_key' => $this->providerKey, 'authenticator' => \get_class($guardAuthenticator)]);
}
// allow the authenticator to fetch authentication info from the request
$credentials = $guardAuthenticator->getCredentials($request);
if (null === $credentials) {
// deprecated since version 3.4, to be removed in 4.0
if ($credentialsCanBeNull) {
return;
}
if ($guardAuthenticator instanceof AbstractGuardAuthenticator) {
@trigger_error(sprintf('Returning null from "%1$s::getCredentials()" is deprecated since Symfony 3.4 and will throw an \UnexpectedValueException in 4.0. Return false from "%1$s::supports()" instead.', \get_class($guardAuthenticator)), \E_USER_DEPRECATED);
return;
}
throw new \UnexpectedValueException(sprintf('The return value of "%1$s::getCredentials()" must not be null. Return false from "%1$s::supports()" instead.', \get_class($guardAuthenticator)));
}
// create a token with the unique key, so that the provider knows which authenticator to use
$token = new PreAuthenticationGuardToken($credentials, $uniqueGuardKey);
if (null !== $this->logger) {
$this->logger->debug('Passing guard token information to the GuardAuthenticationProvider', ['firewall_key' => $this->providerKey, 'authenticator' => \get_class($guardAuthenticator)]);
}
// pass the token into the AuthenticationManager system
// this indirectly calls GuardAuthenticationProvider::authenticate()
$token = $this->authenticationManager->authenticate($token);
if (null !== $this->logger) {
$this->logger->info('Guard authentication successful!', ['token' => $token, 'authenticator' => \get_class($guardAuthenticator)]);
}
// sets the token on the token storage, etc
$this->guardHandler->authenticateWithToken($token, $request, $this->providerKey);
} catch (AuthenticationException $e) {
// oh no! Authentication failed!
if (null !== $this->logger) {
$this->logger->info('Guard authentication failed.', ['exception' => $e, 'authenticator' => \get_class($guardAuthenticator)]);
}
// Avoid leaking error details in case of invalid user (e.g. user not found or invalid account status)
// to prevent user enumeration via response content
if ($this->hideUserNotFoundExceptions && ($e instanceof UsernameNotFoundException || $e instanceof AccountStatusException)) {
$e = new BadCredentialsException('Bad credentials.', 0, $e);
}
$response = $this->guardHandler->handleAuthenticationFailure($e, $request, $guardAuthenticator, $this->providerKey);
if ($response instanceof Response) {
$event->setResponse($response);
}
return;
}
// success!
$response = $this->guardHandler->handleAuthenticationSuccess($token, $request, $guardAuthenticator, $this->providerKey);
if ($response instanceof Response) {
if (null !== $this->logger) {
$this->logger->debug('Guard authenticator set success response.', ['response' => $response, 'authenticator' => \get_class($guardAuthenticator)]);
}
$event->setResponse($response);
} else {
if (null !== $this->logger) {
$this->logger->debug('Guard authenticator set no success response: request continues.', ['authenticator' => \get_class($guardAuthenticator)]);
}
}
// attempt to trigger the remember me functionality
$this->triggerRememberMe($guardAuthenticator, $request, $token, $response);
}
/**
* Should be called if this listener will support remember me.
*/
public function setRememberMeServices(RememberMeServicesInterface $rememberMeServices)
{
$this->rememberMeServices = $rememberMeServices;
}
/**
* Checks to see if remember me is supported in the authenticator and
* on the firewall. If it is, the RememberMeServicesInterface is notified.
*/
private function triggerRememberMe(GuardAuthenticatorInterface $guardAuthenticator, Request $request, TokenInterface $token, Response $response = null)
{
if (null === $this->rememberMeServices) {
if (null !== $this->logger) {
$this->logger->debug('Remember me skipped: it is not configured for the firewall.', ['authenticator' => \get_class($guardAuthenticator)]);
}
return;
}
if (!$guardAuthenticator->supportsRememberMe()) {
if (null !== $this->logger) {
$this->logger->debug('Remember me skipped: your authenticator does not support it.', ['authenticator' => \get_class($guardAuthenticator)]);
}
return;
}
if (!$response instanceof Response) {
throw new \LogicException(sprintf('"%s::onAuthenticationSuccess()" *must* return a Response if you want to use the remember me functionality. Return a Response, or set remember_me to false under the guard configuration.', \get_class($guardAuthenticator)));
}
$this->rememberMeServices->loginSuccess($request, $response, $token);
}
}

vendor/symfony/symfony/src/Symfony/Component/Security/Guard/Firewall/GuardAuthenticationListener.php line 38