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<?php
/*
* This file is part of the Symfony package.
*
* (c) Fabien Potencier <fabien.potencier@symfony-project.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\Security\Core\Exception\AccountStatusException;
use Symfony\Component\Security\Core\Exception\AuthenticationException;
use Symfony\Component\Security\Core\Exception\ProviderNotFoundException;
use Symfony\Component\Security\Core\Authentication\Provider\AuthenticationProviderInterface;
use Symfony\Component\Security\Core\Authentication\Token\TokenInterface;
/**
* AuthenticationProviderManager uses a list of AuthenticationProviderInterface
* instances to authenticate a Token.
*
* @author Fabien Potencier <fabien.potencier@symfony-project.com>
*/
class AuthenticationProviderManager implements AuthenticationManagerInterface
{
protected $providers;
protected $eraseCredentials;
/**
* Constructor.
*
* @param AuthenticationProviderInterface[] $providers An array of AuthenticationProviderInterface instances
* @param Boolean $eraseCredentials Whether to erase credentials after authentication or not
*/
public function __construct(array $providers = array(), $eraseCredentials = true)
{
$this->setProviders($providers);
$this->eraseCredentials = (Boolean) $eraseCredentials;
}
/**
* {@inheritdoc}
*/
public function authenticate(TokenInterface $token)
{
if (!count($this->providers)) {
throw new \LogicException('You must add at least one provider.');
}
$lastException = null;
$result = null;
foreach ($this->providers as $provider) {
if (!$provider->supports($token)) {
continue;
}
try {
$result = $provider->authenticate($token);
} catch (AccountStatusException $e) {
$e->setExtraInformation($token);
throw $e;
} catch (AuthenticationException $e) {
$lastException = $e;
}
}
if (null !== $result) {
if (true === $this->eraseCredentials) {
$result->eraseCredentials();
}
return $result;
}
if (null === $lastException) {
$lastException = new ProviderNotFoundException(sprintf('No Authentication Provider found for token of class "%s".', get_class($token)));
}
$lastException->setExtraInformation($token);
throw $lastException;
}
/**
* Returns the list of current providers.
*
* @return AuthenticationProviderInterface[] An array of AuthenticationProviderInterface instances
*/
public function all()
{
return $this->providers;
}
/**
* Sets the providers instances.
*
* @param AuthenticationProviderInterface[] $providers An array of AuthenticationProviderInterface instances
*/
public function setProviders(array $providers)
{
$this->providers = array();
foreach ($providers as $provider) {
$this->add($provider);
}
}
/**
* Adds a provider.
*
* @param AuthenticationProviderInterface $provider A AuthenticationProviderInterface instance
*/
public function add(AuthenticationProviderInterface $provider)
{
$this->providers[] = $provider;
}
}
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