scratch – Blame information for rev 87
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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 | |||
66 | office | 7 | require_once('php/pseudocrypt.php'); |
8 | require_once('php/functions.php'); |
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87 | office | 9 | require_once('vendor/autoload.php'); |
28 | office | 10 | |
67 | office | 11 | ### Load configuration. |
12 | $config = spyc_load_file('config.yaml'); |
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13 | |||
37 | office | 14 | if(!isset($_POST['fingerprint']) or empty($_POST['fingerprint']) or |
57 | office | 15 | !isset($_POST['action']) or empty($_POST['action'])) { |
81 | office | 16 | http_response_code(500); |
17 | die('Internal server error.'); |
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57 | office | 18 | } |
37 | office | 19 | |
20 | #### Check fingerprint consistency. |
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21 | $fingerprint = strtoupper($_POST['fingerprint']); |
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57 | office | 22 | if(strlen($fingerprint) !== 32) { |
81 | office | 23 | http_response_code(500); |
24 | die('Internal server error.'); |
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57 | office | 25 | } |
37 | office | 26 | |
27 | $action = strtoupper($_POST['action']); |
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28 | |||
29 | #### Data must be sent in order to save a file. |
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57 | office | 30 | if($action === 'SAVE' and !isset($_POST['data'])) { |
81 | office | 31 | http_response_code(500); |
32 | die('Internal server error.'); |
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57 | office | 33 | } |
37 | office | 34 | |
35 | #### Hash fingerprint. |
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36 | $file = strtolower( |
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37 | PseudoCrypt::hash( |
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38 | preg_replace( |
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39 | '/\D/', |
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40 | '', |
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41 | hash( |
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42 | 'sha512', |
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50 | office | 43 | $fingerprint |
37 | office | 44 | ) |
48 | office | 45 | ), |
67 | office | 46 | $config['ASSET_HASH_SIZE'] |
49 | office | 47 | ) |
37 | office | 48 | ); |
49 | |||
28 | office | 50 | #### Build the user path. |
51 | $userPath = join( |
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52 | DIRECTORY_SEPARATOR, |
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53 | array( |
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67 | office | 54 | $config['STORE_FOLDER'], |
37 | office | 55 | $file |
28 | office | 56 | ) |
57 | ); |
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58 | |||
59 | #### Check for path traversals |
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49 | office | 60 | $pathPart = pathinfo($userPath.'.html'); |
28 | office | 61 | if (strcasecmp( |
67 | office | 62 | realpath($pathPart['dirname']), realpath($config['STORE_FOLDER'])) != 0) { |
81 | office | 63 | http_response_code(500); |
64 | die('Internal server error.'); |
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57 | office | 65 | } |
28 | office | 66 | |
37 | office | 67 | switch($action) { |
68 | case 'SAVE': |
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28 | office | 69 | #### Store the file. |
49 | office | 70 | atomized_put_contents($userPath.'.html', $_POST['data']); |
28 | office | 71 | break; |
37 | office | 72 | case 'LOAD': |
57 | office | 73 | if(!file_exists($userPath.'.html')) { |
62 | office | 74 | ### If the file does not exist, present an empty file instead of 404. |
75 | echo ''; |
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29 | office | 76 | return; |
57 | office | 77 | } |
53 | office | 78 | ### Set no-cache |
79 | header('Content-Type: text/html; charset=utf-8'); |
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80 | header('Cache-Control: no-cache, no-store, must-revalidate'); |
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81 | header('Pragma: no-cache'); |
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82 | header('Expires: 0'); |
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83 | ### Open MIME info database and send the content type. |
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84 | header('Content-type: text/html'); |
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85 | ### Send the file along with the inline content disposition. |
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86 | header('Content-length: '.(int)get_file_size($userPath.'.html')); |
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87 | header('Content-Disposition: inline; filename="' . basename($userPath.'.html') . '"'); |
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88 | header('X-Sendfile: '.$userPath.'.html'); |
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28 | office | 89 | break; |
90 | } |
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91 |