| /delete.php |
|---|
| @@ -0,0 +1,66 @@ |
|---|
| <?php |
| |
| ########################################################################### |
| ## Copyright (C) Wizardry and Steamworks 2017 - License: GNU GPLv3 ## |
| ########################################################################### |
| |
| require_once('php/pseudocrypt.php'); |
| require_once('php/functions.php'); |
| require_once('vendor/mustangostang/spyc/Spyc.php'); |
| |
| ### Load configuration. |
| $config = spyc_load_file('config.yaml'); |
| |
| ### If no file has been specified for download then return. |
| if (!isset($_GET['o']) or empty($_GET['o'])) { |
| header('File not found.', true, 404); |
| return; |
| } |
| |
| ### Find the requested file. |
| $file = array_shift( |
| preg_grep( |
| "/$_GET[o]/", |
| scandir($config['STORE_FOLDER']) |
| ) |
| ); |
| |
| if (!isset($file) or empty($file)) { |
| header('File not found.', true, 404); |
| return; |
| } |
| |
| ### Check the path for path traversals. |
| $fileExtension = pathinfo($file, PATHINFO_EXTENSION); |
| |
| #### If the extension is not allowed then return. |
| if (!isset($fileExtension) || |
| !in_array(strtoupper($fileExtension), |
| array_map('strtoupper', $config['ALLOWED_FILE_EXTENSIONS']))) { |
| header('File extension not allowed.', true, 403); |
| return; |
| } |
| |
| #### Build the user path. |
| $userPath = join( |
| DIRECTORY_SEPARATOR, |
| array( |
| $config['STORE_FOLDER'], |
| $file |
| ) |
| ); |
| |
| #### Check for path traversals |
| $pathPart = pathinfo($userPath); |
| if (strcasecmp( |
| realpath($pathPart['dirname']), realpath($config['STORE_FOLDER'])) != 0) { |
| header('Internal server error.', true, 500); |
| return; |
| } |
| |
| if (!file_exists($userPath)) { |
| header('File not found.', true, 404); |
| return; |
| } |
| |
| unlink($userPath); |
