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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\Core\Authentication;
use Symfony\Component\EventDispatcher\EventDispatcherInterface;
use Symfony\Component\EventDispatcher\LegacyEventDispatcherProxy;
use Symfony\Component\Security\Core\Authentication\Provider\AuthenticationProviderInterface;
use Symfony\Component\Security\Core\Authentication\Token\TokenInterface;
use Symfony\Component\Security\Core\AuthenticationEvents;
use Symfony\Component\Security\Core\Event\AuthenticationFailureEvent;
use Symfony\Component\Security\Core\Event\AuthenticationSuccessEvent;
use Symfony\Component\Security\Core\Exception\AccountStatusException;
use Symfony\Component\Security\Core\Exception\AuthenticationException;
use Symfony\Component\Security\Core\Exception\ProviderNotFoundException;
/**
* AuthenticationProviderManager uses a list of AuthenticationProviderInterface
* instances to authenticate a Token.
*
* @author Fabien Potencier <fabien@symfony.com>
* @author Johannes M. Schmitt <schmittjoh@gmail.com>
*/
class AuthenticationProviderManager implements AuthenticationManagerInterface
{
private $providers;
private $eraseCredentials;
private $eventDispatcher;
/**
* @param iterable|AuthenticationProviderInterface[] $providers An iterable with AuthenticationProviderInterface instances as values
* @param bool $eraseCredentials Whether to erase credentials after authentication or not
*
* @throws \InvalidArgumentException
*/
public function __construct(iterable $providers, bool $eraseCredentials = true)
{
if (!$providers) {
throw new \InvalidArgumentException('You must at least add one authentication provider.');
}
$this->providers = $providers;
$this->eraseCredentials = $eraseCredentials;
}
/**
* @final since Symfony 4.3, the type-hint will be updated to the interface from symfony/contracts in 5.0
*/
public function setEventDispatcher(EventDispatcherInterface $dispatcher)
{
$this->eventDispatcher = LegacyEventDispatcherProxy::decorate($dispatcher);
}
/**
* {@inheritdoc}
*/
public function authenticate(TokenInterface $token)
{
$lastException = null;
$result = null;
foreach ($this->providers as $provider) {
if (!$provider instanceof AuthenticationProviderInterface) {
throw new \InvalidArgumentException(sprintf('Provider "%s" must implement the AuthenticationProviderInterface.', \get_class($provider)));
}
if (!$provider->supports($token)) {
continue;
}
try {
$result = $provider->authenticate($token);
if (null !== $result) {
break;
}
} catch (AccountStatusException $e) {
$lastException = $e;
break;
} catch (AuthenticationException $e) {
$lastException = $e;
}
}
if (null !== $result) {
if (true === $this->eraseCredentials) {
$result->eraseCredentials();
}
if (null !== $this->eventDispatcher) {
$this->eventDispatcher->dispatch(new AuthenticationSuccessEvent($result), AuthenticationEvents::AUTHENTICATION_SUCCESS);
}
return $result;
}
if (null === $lastException) {
$lastException = new ProviderNotFoundException(sprintf('No Authentication Provider found for token of class "%s".', \get_class($token)));
}
if (null !== $this->eventDispatcher) {
$this->eventDispatcher->dispatch(new AuthenticationFailureEvent($token, $lastException), AuthenticationEvents::AUTHENTICATION_FAILURE);
}
$lastException->setToken($token);
throw $lastException;
}
}
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