check-smf-index.php

<?php

/**
 * Simple Machines Forum (SMF)
 *
 * @package SMF
 * @author Simple Machines https://www.simplemachines.org
 * @copyright 2024 Simple Machines and individual contributors
 * @license https://www.simplemachines.org/about/smf/license.php BSD
 *
 * @version 3.0 Alpha 1
 */

$ignoreIndexFiles = [
	'\.\/\.',
	'\./other',
	'\./vendor',
];

$contents = <<<END
<?php

// Try to handle it with the upper level index.php. (it should know what to do.)
if (file_exists(dirname(__DIR__) . '/index.php'))
	include (dirname(__DIR__) . '/index.php');
else
	exit;

?>
END;

try
{
	$iter = new RecursiveIteratorIterator(
		new RecursiveDirectoryIterator('.', RecursiveDirectoryIterator::SKIP_DOTS),
		RecursiveIteratorIterator::SELF_FIRST,
		RecursiveIteratorIterator::CATCH_GET_CHILD
	);

	foreach ($iter as $currentDirectory => $dir) {
		if (!$dir->isDir())
			continue;

		foreach ($ignoreIndexFiles as $if) {
			if (preg_match('~' . $if . '~i', $currentDirectory)) {
				continue 2;
			}
		}

		if (!file_exists($currentDirectory . '/index.php')) {
			throw new Exception('Index file missing in ' . $currentDirectory);
		}

		if (file_get_contents($currentDirectory . '/index.php') != $contents) {
			throw new Exception('Index content does not match in ' . $currentDirectory);
		}
	}
}
catch (Exception $e) {
	fwrite(STDERR, $e->getMessage());
	exit(1);
}