scratch – Blame information for rev 50
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Rev | Author | Line No. | Line |
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28 | office | 1 | <?php |
2 | |||
3 | ########################################################################### |
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4 | ## Copyright (C) Wizardry and Steamworks 2017 - License: GNU GPLv3 ## |
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5 | ########################################################################### |
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6 | |||
37 | office | 7 | header('Content-Type: text/html; charset=utf-8'); |
8 | header('Cache-Control: no-cache, no-store, must-revalidate'); |
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9 | header('Pragma: no-cache'); |
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10 | header('Expires: 0'); |
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11 | |||
28 | office | 12 | require_once('inc/pseudocrypt.php'); |
13 | require_once('inc/functions.php'); |
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14 | require_once('config.php'); |
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15 | |||
37 | office | 16 | if(!isset($_POST['fingerprint']) or empty($_POST['fingerprint']) or |
17 | !isset($_POST['action']) or empty($_POST['action'])) |
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18 | return; |
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19 | |||
20 | #### Check fingerprint consistency. |
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21 | $fingerprint = strtoupper($_POST['fingerprint']); |
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22 | if(strlen($fingerprint) !== 32) |
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23 | return; |
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24 | |||
25 | $action = strtoupper($_POST['action']); |
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26 | |||
27 | #### Data must be sent in order to save a file. |
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40 | office | 28 | if($action === 'SAVE' and !isset($_POST['data'])) |
37 | office | 29 | return; |
30 | |||
31 | #### Hash fingerprint. |
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32 | $file = strtolower( |
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33 | PseudoCrypt::hash( |
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34 | preg_replace( |
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35 | '/\D/', |
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36 | '', |
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37 | hash( |
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38 | 'sha512', |
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50 | office | 39 | $fingerprint |
37 | office | 40 | ) |
48 | office | 41 | ), |
42 | $ASSET_HASH_SIZE |
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49 | office | 43 | ) |
37 | office | 44 | ); |
45 | |||
28 | office | 46 | #### Build the user path. |
47 | $userPath = join( |
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48 | DIRECTORY_SEPARATOR, |
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49 | array( |
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50 | $STORE_FOLDER, |
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37 | office | 51 | $file |
28 | office | 52 | ) |
53 | ); |
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54 | |||
55 | #### Check for path traversals |
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49 | office | 56 | $pathPart = pathinfo($userPath.'.html'); |
28 | office | 57 | if (strcasecmp( |
58 | realpath($pathPart['dirname']), realpath($STORE_FOLDER)) != 0) |
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59 | return; |
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60 | |||
37 | office | 61 | switch($action) { |
62 | case 'SAVE': |
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28 | office | 63 | #### Store the file. |
49 | office | 64 | atomized_put_contents($userPath.'.html', $_POST['data']); |
28 | office | 65 | break; |
37 | office | 66 | case 'LOAD': |
50 | office | 67 | if(!file_exists($userPath.'.html')) |
29 | office | 68 | return; |
49 | office | 69 | echo atomized_get_contents($userPath.'.html'); |
28 | office | 70 | break; |
71 | } |
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72 |