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| author | Maat <maat-pub@mageia.biz> | 2020-05-08 18:29:30 +0200 |
|---|---|---|
| committer | Maat <maat-pub@mageia.biz> | 2020-05-08 21:36:04 +0200 |
| commit | 36bc1870f21fac04736a1049c1d5b8e127d729f4 (patch) | |
| tree | 9d102331eeaf1ef3cd23e656320d7c08e65757ed /phpBB/phpbb/filesystem.php | |
| parent | 8875d385d0579b451dac4d9bda465172b4f69ee0 (diff) | |
| parent | 149375253685b3a38996f63015a74b7a0f53aa14 (diff) | |
| download | forums-36bc1870f21fac04736a1049c1d5b8e127d729f4.tar forums-36bc1870f21fac04736a1049c1d5b8e127d729f4.tar.gz forums-36bc1870f21fac04736a1049c1d5b8e127d729f4.tar.bz2 forums-36bc1870f21fac04736a1049c1d5b8e127d729f4.tar.xz forums-36bc1870f21fac04736a1049c1d5b8e127d729f4.zip | |
Merge remote-tracking branch 'upstream/prep-release-3.1.11'
Diffstat (limited to 'phpBB/phpbb/filesystem.php')
| -rw-r--r-- | phpBB/phpbb/filesystem.php | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/phpBB/phpbb/filesystem.php b/phpBB/phpbb/filesystem.php new file mode 100644 index 0000000000..77517082e5 --- /dev/null +++ b/phpBB/phpbb/filesystem.php @@ -0,0 +1,50 @@ +<?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; + } +} |