scratch
| /share-text.php |
|---|
| @@ -0,0 +1,71 @@ |
| <?php |
| ########################################################################### |
| ## Copyright (C) Wizardry and Steamworks 2017 - License: GNU GPLv3 ## |
| ########################################################################### |
| header('Content-Type: text/html; charset=utf-8'); |
| header('Cache-Control: no-cache, no-store, must-revalidate'); |
| header('Pragma: no-cache'); |
| header('Expires: 0'); |
| require_once('inc/pseudocrypt.php'); |
| require_once('inc/functions.php'); |
| require_once('config.php'); |
| if(!isset($_POST['fingerprint']) or empty($_POST['fingerprint']) or |
| !isset($_POST['action']) or empty($_POST['action'])) |
| return; |
| #### Check fingerprint consistency. |
| $fingerprint = strtoupper($_POST['fingerprint']); |
| if(strlen($fingerprint) !== 32) |
| return; |
| $action = strtoupper($_POST['action']); |
| #### Data must be sent in order to save a file. |
| if($action === 'SAVE' and !isset($_POST['data'])) |
| return; |
| #### Hash fingerprint. |
| $file = strtolower( |
| PseudoCrypt::hash( |
| preg_replace( |
| '/\D/', |
| '', |
| hash( |
| 'sha512', |
| $fingerprint |
| ) |
| ) |
| ).'.html' |
| ); |
| #### Build the user path. |
| $userPath = join( |
| DIRECTORY_SEPARATOR, |
| array( |
| $STORE_FOLDER, |
| $file |
| ) |
| ); |
| #### Check for path traversals |
| $pathPart = pathinfo($userPath); |
| if (strcasecmp( |
| realpath($pathPart['dirname']), realpath($STORE_FOLDER)) != 0) |
| return; |
| switch($action) { |
| case 'SAVE': |
| #### Store the file. |
| atomized_put_contents($userPath, $_POST['data']); |
| break; |
| case 'LOAD': |
| if(!file_exists($userPath)) |
| return; |
| echo atomized_get_contents($userPath); |
| break; |
| } |