File Content: SystemNodeProvider.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 WPToolkitDependenciesIsolationPrefix\Ramsey\Uuid\Provider\Node; use WPToolkitDependenciesIsolationPrefix\Ramsey\Uuid\Exception\NodeException; use WPToolkitDependenciesIsolationPrefix\Ramsey\Uuid\Provider\NodeProviderInterface; use WPToolkitDependenciesIsolationPrefix\Ramsey\Uuid\Type\Hexadecimal; use function array_filter; use function array_map; use function array_walk; use function count; use function ob_get_clean; use function ob_start; use function preg_match; use function preg_match_all; use function reset; use function str_contains; use function str_replace; use function strtolower; use function strtoupper; use function substr; use const GLOB_NOSORT; use const PREG_PATTERN_ORDER; /** * SystemNodeProvider retrieves the system node ID, if possible * * The system node ID, or host ID, is often the same as the MAC address for a * network interface on the host. */ class SystemNodeProvider implements NodeProviderInterface { /** * Pattern to match nodes in ifconfig and ipconfig output. */ private const IFCONFIG_PATTERN = '/[^:]([0-9a-f]{2}([:-])[0-9a-f]{2}(\\2[0-9a-f]{2}){4})[^:]/i'; /** * Pattern to match nodes in sysfs stream output. */ private const SYSFS_PATTERN = '/^([0-9a-f]{2}:){5}[0-9a-f]{2}$/i'; public function getNode() : Hexadecimal { $node = $this->getNodeFromSystem(); if ($node === '') { throw new NodeException('Unable to fetch a node for this system'); } return new Hexadecimal($node); } /** * Returns the system node, if it can find it */ protected function getNodeFromSystem() : string { static $node = null; if ($node !== null) { return (string) $node; } // First, try a Linux-specific approach. $node = $this->getSysfs(); if ($node === '') { // Search ifconfig output for MAC addresses & return the first one. $node = $this->getIfconfig(); } $node = str_replace([':', '-'], '', $node); return $node; } /** * Returns the network interface configuration for the system * * @codeCoverageIgnore */ protected function getIfconfig() : string { $disabledFunctions = strtolower((string) \ini_get('disable_functions')); if (str_contains($disabledFunctions, 'passthru')) { return ''; } /** * @psalm-suppress UnnecessaryVarAnnotation * @var string $phpOs */ $phpOs = \constant('PHP_OS'); ob_start(); switch (strtoupper(substr($phpOs, 0, 3))) { case 'WIN': \passthru('ipconfig /all 2>&1'); break; case 'DAR': \passthru('ifconfig 2>&1'); break; case 'FRE': \passthru('netstat -i -f link 2>&1'); break; case 'LIN': default: \passthru('netstat -ie 2>&1'); break; } $ifconfig = (string) ob_get_clean(); if (preg_match_all(self::IFCONFIG_PATTERN, $ifconfig, $matches, PREG_PATTERN_ORDER)) { foreach ($matches[1] as $iface) { if ($iface !== '00:00:00:00:00:00' && $iface !== '00-00-00-00-00-00') { return $iface; } } } return ''; } /** * Returns MAC address from the first system interface via the sysfs interface */ protected function getSysfs() : string { $mac = ''; /** * @psalm-suppress UnnecessaryVarAnnotation * @var string $phpOs */ $phpOs = \constant('PHP_OS'); if (strtoupper($phpOs) === 'LINUX') { $addressPaths = \glob('/sys/class/net/*/address', GLOB_NOSORT); if ($addressPaths === \false || count($addressPaths) === 0) { return ''; } /** @var array<array-key, string> $macs */ $macs = []; array_walk($addressPaths, function (string $addressPath) use(&$macs) : void { if (\is_readable($addressPath)) { $macs[] = \file_get_contents($addressPath); } }); /** @var callable $trim */ $trim = 'trim'; $macs = array_map($trim, $macs); // Remove invalid entries. $macs = array_filter($macs, function (string $address) { return $address !== '00:00:00:00:00:00' && preg_match(self::SYSFS_PATTERN, $address); }); /** @var string|bool $mac */ $mac = reset($macs); } return (string) $mac; } } Submit