mirror of
https://github.com/YunoHost-Apps/phpbb_ynh.git
synced 2024-09-03 19:56:36 +02:00
50 lines
1,022 B
PHP
50 lines
1,022 B
PHP
<?php
|
|
/**
|
|
*
|
|
* This file is part of the phpBB Forum Software package.
|
|
*
|
|
* @copyright (c) phpBB Limited <https://www.phpbb.com>
|
|
* @license GNU General Public License, version 2 (GPL-2.0)
|
|
*
|
|
* For full copyright and license information, please see
|
|
* the docs/CREDITS.txt file.
|
|
*
|
|
*/
|
|
|
|
namespace phpbb;
|
|
|
|
/**
|
|
* A class with various functions that are related to paths, files and the filesystem
|
|
*/
|
|
class filesystem
|
|
{
|
|
/**
|
|
* Eliminates useless . and .. components from specified path.
|
|
*
|
|
* @param string $path Path to clean
|
|
* @return string Cleaned path
|
|
*/
|
|
public function clean_path($path)
|
|
{
|
|
$exploded = explode('/', $path);
|
|
$filtered = array();
|
|
foreach ($exploded as $part)
|
|
{
|
|
if ($part === '.' && !empty($filtered))
|
|
{
|
|
continue;
|
|
}
|
|
|
|
if ($part === '..' && !empty($filtered) && $filtered[sizeof($filtered) - 1] !== '.' && $filtered[sizeof($filtered) - 1] !== '..')
|
|
{
|
|
array_pop($filtered);
|
|
}
|
|
else
|
|
{
|
|
$filtered[] = $part;
|
|
}
|
|
}
|
|
$path = implode('/', $filtered);
|
|
return $path;
|
|
}
|
|
}
|