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