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

SystemNodeProvider.php in Media Cloud Sync 1.2.12, 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 <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\NodeException;
16	use Dudlewebs\WPMCS\Ramsey\Uuid\Provider\NodeProviderInterface;
17	use Dudlewebs\WPMCS\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_replace;
28	use function strpos;
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
38	* network interface on the host.
39	*/
40	class SystemNodeProvider implements NodeProviderInterface
41	{
42	/**
43	* Pattern to match nodes in ifconfig and ipconfig output.
44	*/
45	private const IFCONFIG_PATTERN = '/[^:]([0-9a-f]{2}([:-])[0-9a-f]{2}(\2[0-9a-f]{2}){4})[^:]/i';
46	/**
47	* Pattern to match nodes in sysfs stream output.
48	*/
49	private const SYSFS_PATTERN = '/^([0-9a-f]{2}:){5}[0-9a-f]{2}$/i';
50	public function getNode(): Hexadecimal
51	{
52	$node = $this->getNodeFromSystem();
53	if ($node === '') {
54	throw new NodeException('Unable to fetch a node for this system');
55	}
56	return new Hexadecimal($node);
57	}
58	/**
59	* Returns the system node, if it can find it
60	*/
61	protected function getNodeFromSystem(): string
62	{
63	static $node = null;
64	if ($node !== null) {
65	return (string) $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	$disabledFunctions = strtolower((string) ini_get('disable_functions'));
84	if (strpos($disabledFunctions, 'passthru') !== \false) {
85	return '';
86	}
87	ob_start();
88	switch (strtoupper(substr(constant('PHP_OS'), 0, 3))) {
89	case 'WIN':
90	passthru('ipconfig /all 2>&1');
91	break;
92	case 'DAR':
93	passthru('ifconfig 2>&1');
94	break;
95	case 'FRE':
96	passthru('netstat -i -f link 2>&1');
97	break;
98	case 'LIN':
99	default:
100	passthru('netstat -ie 2>&1');
101	break;
102	}
103	$ifconfig = (string) ob_get_clean();
104	$node = '';
105	if (preg_match_all(self::IFCONFIG_PATTERN, $ifconfig, $matches, PREG_PATTERN_ORDER)) {
106	$node = $matches[1][0] ?? '';
107	}
108	return $node;
109	}
110	/**
111	* Returns MAC address from the first system interface via the sysfs interface
112	*/
113	protected function getSysfs(): string
114	{
115	$mac = '';
116	if (strtoupper(constant('PHP_OS')) === 'LINUX') {
117	$addressPaths = glob('/sys/class/net/*/address', GLOB_NOSORT);
118	if ($addressPaths === \false \|\| count($addressPaths) === 0) {
119	return '';
120	}
121	$macs = [];
122	array_walk($addressPaths, function (string $addressPath) use (&$macs): void {
123	if (is_readable($addressPath)) {
124	$macs[] = file_get_contents($addressPath);
125	}
126	});
127	$macs = array_map('trim', $macs);
128	// Remove invalid entries.
129	$macs = array_filter($macs, function (string $address) {
130	return $address !== '00:00:00:00:00:00' && preg_match(self::SYSFS_PATTERN, $address);
131	});
132	$mac = reset($macs);
133	}
134	return (string) $mac;
135	}
136	}
137