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<?php

declare(strict_types=1);

/**
 * SPDX-FileCopyrightText: 2022 Nextcloud GmbH and Nextcloud contributors
 * SPDX-License-Identifier: AGPL-3.0-or-later
 */

namespace OC\Net;

use function filter_var;
use function in_array;
use function strrchr;
use function substr;
use function substr_count;

/**
 * Classifier for network hostnames
 *
 * @internal
 */
class HostnameClassifier {
	private const LOCAL_TOPLEVEL_DOMAINS = [
		'local',
		'localhost',
		'intranet',
		'internal',
		'private',
		'corp',
		'home',
		'lan',
	];

	/**
	 * Check host identifier for local hostname
	 *
	 * IP addresses are not considered local. Use the IpAddressClassifier for those.
	 */
	public function isLocalHostname(string $hostname): bool {
		// Disallow local network top-level domains from RFC 6762
		$topLevelDomain = substr((strrchr($hostname, '.') ?: ''), 1);
		if (in_array($topLevelDomain, self::LOCAL_TOPLEVEL_DOMAINS)) {
			return true;
		}

		// Disallow hostname only
		if (substr_count($hostname, '.') === 0 && !filter_var($hostname, FILTER_VALIDATE_IP, FILTER_FLAG_IPV6)) {
			return true;
		}

		return false;
	}
}
. PHP_EOL; echo $exception; exit(1); } try { require_once __DIR__ . '/lib/base.php'; // set to run indefinitely if needed if (strpos(@ini_get('disable_functions'), 'set_time_limit') === false) { @set_time_limit(0); } if (!OC::$CLI) { echo "This script can be run from the command line only" . PHP_EOL; exit(1); } set_exception_handler('exceptionHandler'); if (!function_exists('posix_getuid')) { echo "The posix extensions are required - see https://www.php.net/manual/en/book.posix.php" . PHP_EOL; exit(1); } $user = posix_getuid(); $configUser = fileowner(OC::$configDir . 'config.php'); if ($user !== $configUser) { echo "Console has to be executed with the user that owns the file config/config.php" . PHP_EOL; echo "Current user id: " . $user . PHP_EOL; echo "Owner id of config.php: " . $configUser . PHP_EOL; echo "Try adding 'sudo -u #" . $configUser . "' to the beginning of the command (without the single quotes)" . PHP_EOL; echo "If running with 'docker exec' try adding the option '-u " . $configUser . "' to the docker command (without the single quotes)" . PHP_EOL; exit(1); } $oldWorkingDir = getcwd(); if ($oldWorkingDir === false) { echo "This script can be run from the Nextcloud root directory only." . PHP_EOL; echo "Can't determine current working dir - the script will continue to work but be aware of the above fact." . PHP_EOL; } elseif ($oldWorkingDir !== __DIR__ && !chdir(__DIR__)) { echo "This script can be run from the Nextcloud root directory only." . PHP_EOL; echo "Can't change to Nextcloud root directory." . PHP_EOL; exit(1); } if (!(function_exists('pcntl_signal') && function_exists('pcntl_signal_dispatch')) && !in_array('--no-warnings', $argv)) { echo "The process control (PCNTL) extensions are required in case you want to interrupt long running commands - see https://www.php.net/manual/en/book.pcntl.php" . PHP_EOL; echo "Additionally the function 'pcntl_signal' and 'pcntl_signal_dispatch' need to be enabled in your php.ini." . PHP_EOL; } $application = new Application( \OC::$server->getConfig(), \OC::$server->get(\OCP\EventDispatcher\IEventDispatcher::class), \OC::$server->getRequest(), \OC::$server->get(\Psr\Log\LoggerInterface::class), \OC::$server->query(\OC\MemoryInfo::class) ); $application->loadCommands(new ArgvInput(), new ConsoleOutput()); $application->run(); } catch (Exception $ex) { exceptionHandler($ex); } catch (Error $ex) { exceptionHandler($ex); }