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<?php
declare(strict_types=1);
/*
* The MIT License (MIT)
*
* Copyright (c) 2014-2017 Spomky-Labs
* This software may be modified and distributed under the terms
* of the MIT license. See the LICENSE file for details.
*/
namespace Jose\Component\Checker;
/**
* Class IssuedAtChecker.
final class IssuedAtChecker implements ClaimChecker
{
private const CLAIM_NAME = 'iat';
* @var int
private $allowedTimeDrift;
* ExpirationTimeChecker constructor.
* @param int $allowedTimeDrift
public function __construct(int $allowedTimeDrift = 0)
$this->allowedTimeDrift = $allowedTimeDrift;
}
* {@inheritdoc}
public function checkClaim($value)
if (!is_int($value)) {
throw new InvalidClaimException('The claim "iat" must be an integer.', self::CLAIM_NAME, $value);
if (time() < $value - $this->allowedTimeDrift) {
throw new InvalidClaimException('The JWT is issued in the future.', self::CLAIM_NAME, $value);
public function supportedClaim(): string
return self::CLAIM_NAME;