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Direktori : /home2/selectio/www/a1tex.in/vendor/ramsey/uuid/src/Provider/Dce/ |
Current File : /home2/selectio/www/a1tex.in/vendor/ramsey/uuid/src/Provider/Dce/SystemDceSecurityProvider.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\Provider\Dce; use Ramsey\Uuid\Exception\DceSecurityException; use Ramsey\Uuid\Provider\DceSecurityProviderInterface; use Ramsey\Uuid\Type\Integer as IntegerObject; use function escapeshellarg; use function preg_split; use function str_getcsv; use function strrpos; use function strtolower; use function strtoupper; use function substr; use function trim; use const PREG_SPLIT_NO_EMPTY; /** * SystemDceSecurityProvider retrieves the user or group identifiers from the system */ class SystemDceSecurityProvider implements DceSecurityProviderInterface { /** * @throws DceSecurityException if unable to get a user identifier * * @inheritDoc */ public function getUid(): IntegerObject { /** @var int|float|string|IntegerObject|null $uid */ static $uid = null; if ($uid instanceof IntegerObject) { return $uid; } if ($uid === null) { $uid = $this->getSystemUid(); } if ($uid === '') { throw new DceSecurityException( 'Unable to get a user identifier using the system DCE ' . 'Security provider; please provide a custom identifier or ' . 'use a different provider' ); } $uid = new IntegerObject($uid); return $uid; } /** * @throws DceSecurityException if unable to get a group identifier * * @inheritDoc */ public function getGid(): IntegerObject { /** @var int|float|string|IntegerObject|null $gid */ static $gid = null; if ($gid instanceof IntegerObject) { return $gid; } if ($gid === null) { $gid = $this->getSystemGid(); } if ($gid === '') { throw new DceSecurityException( 'Unable to get a group identifier using the system DCE ' . 'Security provider; please provide a custom identifier or ' . 'use a different provider' ); } $gid = new IntegerObject($gid); return $gid; } /** * Returns the UID from the system */ private function getSystemUid(): string { if (!$this->hasShellExec()) { return ''; } return match ($this->getOs()) { 'WIN' => $this->getWindowsUid(), default => trim((string) shell_exec('id -u')), }; } /** * Returns the GID from the system */ private function getSystemGid(): string { if (!$this->hasShellExec()) { return ''; } return match ($this->getOs()) { 'WIN' => $this->getWindowsGid(), default => trim((string) shell_exec('id -g')), }; } /** * Returns true if shell_exec() is available for use */ private function hasShellExec(): bool { $disabledFunctions = strtolower((string) ini_get('disable_functions')); return !str_contains($disabledFunctions, 'shell_exec'); } /** * Returns the PHP_OS string */ private function getOs(): string { /** * @psalm-suppress UnnecessaryVarAnnotation * @var string $phpOs */ $phpOs = constant('PHP_OS'); return strtoupper(substr($phpOs, 0, 3)); } /** * Returns the user identifier for a user on a Windows system * * Windows does not have the same concept as an effective POSIX UID for the * running script. Instead, each user is uniquely identified by an SID * (security identifier). The SID includes three 32-bit unsigned integers * that make up a unique domain identifier, followed by an RID (relative * identifier) that we will use as the UID. The primary caveat is that this * UID may not be unique to the system, since it is, instead, unique to the * domain. * * @link https://www.lifewire.com/what-is-an-sid-number-2626005 What Is an SID Number? * @link https://bit.ly/30vE7NM Well-known SID Structures * @link https://bit.ly/2FWcYKJ Well-known security identifiers in Windows operating systems * @link https://www.windows-commandline.com/get-sid-of-user/ Get SID of user */ private function getWindowsUid(): string { $response = shell_exec('whoami /user /fo csv /nh'); if ($response === null) { return ''; } $sid = str_getcsv(trim((string) $response))[1] ?? ''; if (($lastHyphen = strrpos($sid, '-')) === false) { return ''; } return trim(substr($sid, $lastHyphen + 1)); } /** * Returns a group identifier for a user on a Windows system * * Since Windows does not have the same concept as an effective POSIX GID * for the running script, we will get the local group memberships for the * user running the script. Then, we will get the SID (security identifier) * for the first group that appears in that list. Finally, we will return * the RID (relative identifier) for the group and use that as the GID. * * @link https://www.windows-commandline.com/list-of-user-groups-command-line/ List of user groups command line */ private function getWindowsGid(): string { $response = shell_exec('net user %username% | findstr /b /i "Local Group Memberships"'); if ($response === null) { return ''; } /** @var string[] $userGroups */ $userGroups = preg_split('/\s{2,}/', (string) $response, -1, PREG_SPLIT_NO_EMPTY); $firstGroup = trim($userGroups[1] ?? '', "* \t\n\r\0\x0B"); if ($firstGroup === '') { return ''; } $response = shell_exec('wmic group get name,sid | findstr /b /i ' . escapeshellarg($firstGroup)); if ($response === null) { return ''; } /** @var string[] $userGroup */ $userGroup = preg_split('/\s{2,}/', (string) $response, -1, PREG_SPLIT_NO_EMPTY); $sid = $userGroup[1] ?? ''; if (($lastHyphen = strrpos($sid, '-')) === false) { return ''; } return trim(substr($sid, $lastHyphen + 1)); } }