media-cloud-sync / includes / sdk / google / ramsey / uuid / src / Provider / Node / StaticNodeProvider.php

StaticNodeProvider.php in Media Cloud Sync 1.2.9, at includes/sdk/google/ramsey/uuid/src/Provider/Node/StaticNodeProvider.php

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1	<?php
2
3	/**
4	* This file is part of the ramsey/uuid library
5	*
6	* For the full copyright and license information, please view the LICENSE
7	* file that was distributed with this source code.
8	*
9	* @copyright Copyright (c) Ben Ramsey <ben@benramsey.com>
10	* @license http://opensource.org/licenses/MIT MIT
11	*/
12	declare (strict_types=1);
13	namespace Dudlewebs\WPMCS\Ramsey\Uuid\Provider\Node;
14
15	use Dudlewebs\WPMCS\Ramsey\Uuid\Exception\InvalidArgumentException;
16	use Dudlewebs\WPMCS\Ramsey\Uuid\Provider\NodeProviderInterface;
17	use Dudlewebs\WPMCS\Ramsey\Uuid\Type\Hexadecimal;
18	use function dechex;
19	use function hexdec;
20	use function str_pad;
21	use function substr;
22	use const STR_PAD_LEFT;
23	/**
24	* StaticNodeProvider provides a static node value with the multicast bit set
25	*
26	* @link http://tools.ietf.org/html/rfc4122#section-4.5 RFC 4122, § 4.5: Node IDs that Do Not Identify the Host
27	*/
28	class StaticNodeProvider implements NodeProviderInterface
29	{
30	/**
31	* @var Hexadecimal
32	*/
33	private $node;
34	/**
35	* @param Hexadecimal $node The static node value to use
36	*/
37	public function __construct(Hexadecimal $node)
38	{
39	if (strlen($node->toString()) > 12) {
40	throw new InvalidArgumentException('Static node value cannot be greater than 12 hexadecimal characters');
41	}
42	$this->node = $this->setMulticastBit($node);
43	}
44	public function getNode(): Hexadecimal
45	{
46	return $this->node;
47	}
48	/**
49	* Set the multicast bit for the static node value
50	*/
51	private function setMulticastBit(Hexadecimal $node): Hexadecimal
52	{
53	$nodeHex = str_pad($node->toString(), 12, '0', STR_PAD_LEFT);
54	$firstOctet = substr($nodeHex, 0, 2);
55	$firstOctet = str_pad(dechex(hexdec($firstOctet) \| 0x1), 2, '0', STR_PAD_LEFT);
56	return new Hexadecimal($firstOctet . substr($nodeHex, 2));
57	}
58	}
59