public static function ensureRequestedGrantTypeIsSupported(GrantType $grantType, TokenRequestAttempt $tokenRequestAttempt)
{
if (strtolower($grantType->getIdentifier()) !== strtolower($tokenRequestAttempt->getGrantType())) {
throw new UnsupportedGrantType(self::class, $grantType->getIdentifier(), $tokenRequestAttempt->getGrantType());
}
}
private function checkIfClientSupportsRequestedGrantType(TokenRequestAttempt $tokenRequestAttempt)
{
$client = $this->clientStorage->findById($tokenRequestAttempt->getInputData()->getClientId());
return in_array($tokenRequestAttempt->getGrantType(), $client->getAllowedGrantTypes());
}
