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<?php
/*
* The MIT License (MIT)
*
* Copyright (c) 2014-2016 Spomky-Labs
* This software may be modified and distributed under the terms
* of the MIT license. See the LICENSE file for details.
*/
namespace Jose\Checker;
use Assert\Assertion;
use Jose\Object\JWTInterface;
abstract class SubjectChecker implements ClaimCheckerInterface
{
/**
* {@inheritdoc}
public function checkClaim(JWTInterface $jwt)
if (!$jwt->hasClaim('sub')) {
return [];
}
$subject = $jwt->getClaim('sub');
Assertion::true($this->isSubjectAllowed($subject), sprintf('The subject "%s" is not allowed.', $subject));
return ['sub'];
* @param string $subject
* @return bool
abstract protected function isSubjectAllowed($subject);