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

SystemNodeProvider.php in Media Cloud Sync 1.4.2, at includes/sdk/google/ramsey/uuid/src/Provider/Node/SystemNodeProvider.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 <[email protected]>
10	* @license http://opensource.org/licenses/MIT MIT
11	*/
12	declare (strict_types=1);
13	namespace Dudlewebs\WPMCS\GCP\Ramsey\Uuid\Provider\Node;
14
15	use Dudlewebs\WPMCS\GCP\Ramsey\Uuid\Exception\NodeException;
16	use Dudlewebs\WPMCS\GCP\Ramsey\Uuid\Provider\NodeProviderInterface;
17	use Dudlewebs\WPMCS\GCP\Ramsey\Uuid\Type\Hexadecimal;
18	use function array_filter;
19	use function array_map;
20	use function array_walk;
21	use function count;
22	use function ob_get_clean;
23	use function ob_start;
24	use function preg_match;
25	use function preg_match_all;
26	use function reset;
27	use function str_contains;
28	use function str_replace;
29	use function strtolower;
30	use function strtoupper;
31	use function substr;
32	use const GLOB_NOSORT;
33	use const PREG_PATTERN_ORDER;
34	/**
35	* SystemNodeProvider retrieves the system node ID, if possible
36	*
37	* The system node ID, or host ID, is often the same as the MAC address for a network interface on the host.
38	*/
39	class SystemNodeProvider implements NodeProviderInterface
40	{
41	/**
42	* Pattern to match nodes in `ifconfig` and `ipconfig` output.
43	*/
44	private const IFCONFIG_PATTERN = '/[^:]([0-9a-f]{2}([:-])[0-9a-f]{2}(\\2[0-9a-f]{2}){4})[^:]/i';
45	/**
46	* Pattern to match nodes in sysfs stream output.
47	*/
48	private const SYSFS_PATTERN = '/^([0-9a-f]{2}:){5}[0-9a-f]{2}$/i';
49	public function getNode() : Hexadecimal
50	{
51	$node = $this->getNodeFromSystem();
52	if ($node === '') {
53	throw new NodeException('Unable to fetch a node for this system');
54	}
55	return new Hexadecimal($node);
56	}
57	/**
58	* Returns the system node if found
59	*/
60	protected function getNodeFromSystem() : string
61	{
62	/** @var string \| null $node */
63	static $node = null;
64	if ($node !== null) {
65	return $node;
66	}
67	// First, try a Linux-specific approach.
68	$node = $this->getSysfs();
69	if ($node === '') {
70	// Search ifconfig output for MAC addresses & return the first one.
71	$node = $this->getIfconfig();
72	}
73	$node = str_replace([':', '-'], '', $node);
74	return $node;
75	}
76	/**
77	* Returns the network interface configuration for the system
78	*
79	* @codeCoverageIgnore
80	*/
81	protected function getIfconfig() : string
82	{
83	if (str_contains(strtolower((string) \ini_get('disable_functions')), 'passthru')) {
84	return '';
85	}
86	/** @var string $phpOs */
87	$phpOs = \constant('PHP_OS');
88	ob_start();
89	switch (strtoupper(substr($phpOs, 0, 3))) {
90	case 'WIN':
91	\passthru('ipconfig /all 2>&1');
92	break;
93	case 'DAR':
94	\passthru('ifconfig 2>&1');
95	break;
96	case 'FRE':
97	\passthru('netstat -i -f link 2>&1');
98	break;
99	case 'LIN':
100	default:
101	\passthru('netstat -ie 2>&1');
102	break;
103	}
104	$ifconfig = (string) ob_get_clean();
105	if (preg_match_all(self::IFCONFIG_PATTERN, $ifconfig, $matches, PREG_PATTERN_ORDER)) {
106	foreach ($matches[1] as $iface) {
107	if ($iface !== '00:00:00:00:00:00' && $iface !== '00-00-00-00-00-00') {
108	return $iface;
109	}
110	}
111	}
112	return '';
113	}
114	/**
115	* Returns MAC address from the first system interface via the sysfs interface
116	*/
117	protected function getSysfs() : string
118	{
119	/** @var string $phpOs */
120	$phpOs = \constant('PHP_OS');
121	if (strtoupper($phpOs) !== 'LINUX') {
122	return '';
123	}
124	$addressPaths = \glob('/sys/class/net/*/address', GLOB_NOSORT);
125	if ($addressPaths === \false \|\| count($addressPaths) === 0) {
126	return '';
127	}
128	/** @var array<array-key, string> $macs */
129	$macs = [];
130	array_walk($addressPaths, function (string $addressPath) use(&$macs) : void {
131	if (\is_readable($addressPath)) {
132	$macs[] = \file_get_contents($addressPath);
133	}
134	});
135	/** @var callable $trim */
136	$trim = 'trim';
137	$macs = array_map($trim, $macs);
138	// Remove invalid entries.
139	$macs = array_filter($macs, function (mixed $address) : bool {
140	\assert(\is_string($address));
141	return $address !== '00:00:00:00:00:00' && preg_match(self::SYSFS_PATTERN, $address);
142	});
143	/** @var bool \| string $mac */
144	$mac = reset($macs);
145	return (string) $mac;
146	}
147	}
148