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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\User;
use Symfony\Component\Security\Core\Exception\UnsupportedUserException;
use Symfony\Component\Security\Core\Exception\UsernameNotFoundException;
/**
* Chain User Provider.
*
* This provider calls several leaf providers in a chain until one is able to
* handle the request.
*
* @author Johannes M. Schmitt <schmittjoh@gmail.com>
*/
class ChainUserProvider implements UserProviderInterface
{
private $providers;
/**
* @param iterable|UserProviderInterface[] $providers
*/
public function __construct(iterable $providers)
{
$this->providers = $providers;
}
/**
* @return array
*/
public function getProviders()
{
if ($this->providers instanceof \Traversable) {
return iterator_to_array($this->providers);
}
return $this->providers;
}
/**
* {@inheritdoc}
*/
public function loadUserByUsername($username)
{
foreach ($this->providers as $provider) {
try {
return $provider->loadUserByUsername($username);
} catch (UsernameNotFoundException $e) {
// try next one
}
}
$ex = new UsernameNotFoundException(sprintf('There is no user with name "%s".', $username));
$ex->setUsername($username);
throw $ex;
}
/**
* {@inheritdoc}
*/
public function refreshUser(UserInterface $user)
{
$supportedUserFound = false;
foreach ($this->providers as $provider) {
try {
return $provider->refreshUser($user);
} catch (UnsupportedUserException $e) {
// try next one
} catch (UsernameNotFoundException $e) {
$supportedUserFound = true;
// try next one
}
}
if ($supportedUserFound) {
$e = new UsernameNotFoundException(sprintf('There is no user with name "%s".', $user->getUsername()));
$e->setUsername($user->getUsername());
throw $e;
} else {
throw new UnsupportedUserException(sprintf('The account "%s" is not supported.', \get_class($user)));
}
}
/**
* {@inheritdoc}
*/
public function supportsClass($class)
{
foreach ($this->providers as $provider) {
if ($provider->supportsClass($class)) {
return true;
}
}
return false;
}
}
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