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📄 CombGenerator.php(3.41 KB)
📄 DceSecurityGenerator.php(4.23 KB)
📄 DceSecurityGeneratorInterface.php(1.67 KB)
📄 DefaultNameGenerator.php(1.06 KB)
📄 DefaultTimeGenerator.php(3.65 KB)
📄 NameGeneratorFactory.php(695 B)
📄 NameGeneratorInterface.php(1.01 KB)
📄 PeclUuidNameGenerator.php(1.25 KB)
📄 PeclUuidRandomGenerator.php(816 B)
📄 PeclUuidTimeGenerator.php(879 B)
📄 RandomBytesGenerator.php(1.05 KB)
📄 RandomGeneratorFactory.php(705 B)
📄 RandomGeneratorInterface.php(735 B)
📄 RandomLibAdapter.php(1.51 KB)
📄 TimeGeneratorFactory.php(1.09 KB)
📄 TimeGeneratorInterface.php(1.11 KB)
📄 UnixTimeGenerator.php(5.71 KB)

Editing: DefaultTimeGenerator.php

<?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\Generator;

use Ramsey\Uuid\Converter\TimeConverterInterface;
use Ramsey\Uuid\Exception\InvalidArgumentException;
use Ramsey\Uuid\Exception\RandomSourceException;
use Ramsey\Uuid\Exception\TimeSourceException;
use Ramsey\Uuid\Provider\NodeProviderInterface;
use Ramsey\Uuid\Provider\TimeProviderInterface;
use Ramsey\Uuid\Type\Hexadecimal;
use Throwable;

use function dechex;
use function hex2bin;
use function is_int;
use function pack;
use function preg_match;
use function sprintf;
use function str_pad;
use function strlen;

use const STR_PAD_LEFT;

/**
 * DefaultTimeGenerator generates strings of binary data based on a node ID, clock sequence, and the current time
 */
class DefaultTimeGenerator implements TimeGeneratorInterface
{
    public function __construct(
        private NodeProviderInterface $nodeProvider,
        private TimeConverterInterface $timeConverter,
        private TimeProviderInterface $timeProvider,
    ) {
    }

/**
     * @throws InvalidArgumentException if the parameters contain invalid values
     * @throws RandomSourceException if random_int() throws an exception/error
     *
     * @inheritDoc
     */
    public function generate($node = null, ?int $clockSeq = null): string
    {
        if ($node instanceof Hexadecimal) {
            $node = $node->toString();
        }

$node = $this->getValidNode($node);

if ($clockSeq === null) {
            try {
                // This does not use "stable storage"; see RFC 9562, section 6.3.
                $clockSeq = random_int(0, 0x3fff);
            } catch (Throwable $exception) {
                throw new RandomSourceException($exception->getMessage(), (int) $exception->getCode(), $exception);
            }
        }

$time = $this->timeProvider->getTime();

$uuidTime = $this->timeConverter->calculateTime(
            $time->getSeconds()->toString(),
            $time->getMicroseconds()->toString()
        );

$timeHex = str_pad($uuidTime->toString(), 16, '0', STR_PAD_LEFT);

if (strlen($timeHex) !== 16) {
            throw new TimeSourceException(sprintf('The generated time of \'%s\' is larger than expected', $timeHex));
        }

$timeBytes = (string) hex2bin($timeHex);

return $timeBytes[4] . $timeBytes[5] . $timeBytes[6] . $timeBytes[7]
            . $timeBytes[2] . $timeBytes[3] . $timeBytes[0] . $timeBytes[1]
            . pack('n*', $clockSeq) . $node;
    }

/**
     * Uses the node provider given when constructing this instance to get the node ID (usually a MAC address)
     *
     * @param int | string | null $node A node value that may be used to override the node provider
     *
     * @return string 6-byte binary string representation of the node
     *
     * @throws InvalidArgumentException
     */
    private function getValidNode(int | string | null $node): string
    {
        if ($node === null) {
            $node = $this->nodeProvider->getNode();
        }

// Convert the node to hex if it is still an integer.
        if (is_int($node)) {
            $node = dechex($node);
        }

if (!preg_match('/^[A-Fa-f0-9]+$/', (string) $node) || strlen((string) $node) > 12) {
            throw new InvalidArgumentException('Invalid node value');
        }

return (string) hex2bin(str_pad((string) $node, 12, '0', STR_PAD_LEFT));
    }
}

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