Viewing file:  StrictValidAt.php (2.64 KB) -rw-r--r--
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<?php
declare(strict_types=1);
namespace Lcobucci\JWT\Validation\Constraint;
use DateInterval;
use DateTimeInterface;
use Lcobucci\JWT\Token;
use Lcobucci\JWT\UnencryptedToken;
use Lcobucci\JWT\Validation\ConstraintViolation;
use Lcobucci\JWT\Validation\ValidAt as ValidAtInterface;
use Psr\Clock\ClockInterface as Clock;
final class StrictValidAt implements ValidAtInterface
{
private readonly DateInterval $leeway;
public function __construct(private readonly Clock $clock, ?DateInterval $leeway = null)
{
$this->leeway = $this->guardLeeway($leeway);
}
private function guardLeeway(?DateInterval $leeway): DateInterval
{
if ($leeway === null) {
return new DateInterval('PT0S');
}
if ($leeway->invert === 1) {
throw LeewayCannotBeNegative::create();
}
return $leeway;
}
public function assert(Token $token): void
{
if (! $token instanceof UnencryptedToken) {
throw ConstraintViolation::error('You should pass a plain token', $this);
}
$now = $this->clock->now();
$this->assertIssueTime($token, $now->add($this->leeway));
$this->assertMinimumTime($token, $now->add($this->leeway));
$this->assertExpiration($token, $now->sub($this->leeway));
}
/** @throws ConstraintViolation */
private function assertExpiration(UnencryptedToken $token, DateTimeInterface $now): void
{
if (! $token->claims()->has(Token\RegisteredClaims::EXPIRATION_TIME)) {
throw ConstraintViolation::error('"Expiration Time" claim missing', $this);
}
if ($token->isExpired($now)) {
throw ConstraintViolation::error('The token is expired', $this);
}
}
/** @throws ConstraintViolation */
private function assertMinimumTime(UnencryptedToken $token, DateTimeInterface $now): void
{
if (! $token->claims()->has(Token\RegisteredClaims::NOT_BEFORE)) {
throw ConstraintViolation::error('"Not Before" claim missing', $this);
}
if (! $token->isMinimumTimeBefore($now)) {
throw ConstraintViolation::error('The token cannot be used yet', $this);
}
}
/** @throws ConstraintViolation */
private function assertIssueTime(UnencryptedToken $token, DateTimeInterface $now): void
{
if (! $token->claims()->has(Token\RegisteredClaims::ISSUED_AT)) {
throw ConstraintViolation::error('"Issued At" claim missing', $this);
}
if (! $token->hasBeenIssuedBefore($now)) {
throw ConstraintViolation::error('The token was issued in the future', $this);
}
}
}
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