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<?php
namespace Wallabag\CoreBundle\ParamConverter;
use Doctrine\Common\Persistence\ManagerRegistry;
use Sensio\Bundle\FrameworkExtraBundle\Configuration\ParamConverter;
use Sensio\Bundle\FrameworkExtraBundle\Request\ParamConverter\ParamConverterInterface;
use Symfony\Component\HttpFoundation\Request;
use Symfony\Component\HttpKernel\Exception\NotFoundHttpException;
use Wallabag\UserBundle\Entity\User;
/**
* ParamConverter used in the RSS controller to retrieve the right user according to
* username & token given in the url.
*
* @see http://stfalcon.com/en/blog/post/symfony2-custom-paramconverter
*/
class UsernameRssTokenConverter implements ParamConverterInterface
{
private $registry;
/**
* @param ManagerRegistry $registry Manager registry
*/
public function __construct(ManagerRegistry $registry = null)
{
$this->registry = $registry;
}
/**
* {@inheritdoc}
*
* Check, if object supported by our converter
*/
public function supports(ParamConverter $configuration)
{
// If there is no manager, this means that only Doctrine DBAL is configured
// In this case we can do nothing and just return
if (null === $this->registry || !\count($this->registry->getManagers())) {
return false;
}
// Check, if option class was set in configuration
if (null === $configuration->getClass()) {
return false;
}
// Get actual entity manager for class
$em = $this->registry->getManagerForClass($configuration->getClass());
// Check, if class name is what we need
if (null !== $em && 'Wallabag\UserBundle\Entity\User' !== $em->getClassMetadata($configuration->getClass())->getName()) {
return false;
}
return true;
}
/**
* {@inheritdoc}
*
* Applies converting
*
* @throws \InvalidArgumentException When route attributes are missing
* @throws NotFoundHttpException When object not found
*/
public function apply(Request $request, ParamConverter $configuration)
{
$username = $request->attributes->get('username');
$rssToken = $request->attributes->get('token');
if (!$request->attributes->has('username') || !$request->attributes->has('token')) {
return false;
}
// Get actual entity manager for class
$em = $this->registry->getManagerForClass($configuration->getClass());
$userRepository = $em->getRepository($configuration->getClass());
// Try to find user by its username and config rss_token
$user = $userRepository->findOneByUsernameAndRsstoken($username, $rssToken);
if (null === $user || !($user instanceof User)) {
throw new NotFoundHttpException(sprintf('%s not found.', $configuration->getClass()));
}
// Map found user to the route's parameter
$request->attributes->set($configuration->getName(), $user);
}
}
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