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<?php
/**
* This file is part of the ramsey/uuid library
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*
* @copyright Copyright (c) Ben Ramsey <ben@benramsey.com>
* @license http://opensource.org/licenses/MIT MIT
*/
declare(strict_types=1);
namespace Ramsey\Uuid\Rfc4122;
use Ramsey\Uuid\Uuid;
use Ramsey\Uuid\Validator\ValidatorInterface;
use function preg_match;
use function str_replace;
/**
* Rfc4122\Validator validates strings as UUIDs of the RFC 4122 variant
*
* @psalm-immutable
*/
final class Validator implements ValidatorInterface
{
private const VALID_PATTERN = '\A[0-9A-Fa-f]{8}-[0-9A-Fa-f]{4}-'
. '[1-8][0-9A-Fa-f]{3}-[ABab89][0-9A-Fa-f]{3}-[0-9A-Fa-f]{12}\z';
/**
* @psalm-return non-empty-string
* @psalm-suppress MoreSpecificReturnType we know that the retrieved `string` is never empty
* @psalm-suppress LessSpecificReturnStatement we know that the retrieved `string` is never empty
*/
public function getPattern(): string
{
return self::VALID_PATTERN;
}
public function validate(string $uuid): bool
{
$uuid = str_replace(['urn:', 'uuid:', 'URN:', 'UUID:', '{', '}'], '', $uuid);
$uuid = strtolower($uuid);
return $uuid === Uuid::NIL || $uuid === Uuid::MAX || preg_match('/' . self::VALID_PATTERN . '/Dms', $uuid);
}
}
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