scratch – Blame information for rev 47
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Rev | Author | Line No. | Line |
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7 | 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 | |||
13 | office | 7 | require_once('inc/pseudocrypt.php'); |
8 | require_once('inc/functions.php'); |
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7 | office | 9 | require_once('config.php'); |
10 | |||
11 | office | 11 | #### Retrieve uploaded file. |
12 | if (!empty($_FILES['file']) and |
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7 | office | 13 | is_uploaded_file($_FILES['file']['tmp_name'])) { |
14 | # Regular multipart/form-data upload. |
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15 | $name = $_FILES['file']['name']; |
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16 | $data = file_get_contents($_FILES['file']['tmp_name']); |
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17 | } else { |
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18 | # Raw POST data. |
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19 | $name = urldecode(@$_SERVER['HTTP_X_FILE_NAME']); |
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20 | $data = file_get_contents("php://input"); |
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21 | } |
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22 | |||
14 | office | 23 | #### Grab the file extension. |
7 | office | 24 | $fileExtension = pathinfo($name, PATHINFO_EXTENSION); |
11 | office | 25 | |
14 | office | 26 | #### If the extension is not allowed then change it to a text extension. |
27 | if (!isset($fileExtension) || |
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16 | office | 28 | !in_array(strtoupper($fileExtension), |
47 | office | 29 | array_map('strtoupper', $ALLOWED_FILE_EXTENSIONS))) { |
30 | header("HTTP/1.1 500 Internal Server Error", true, 500); |
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31 | return; |
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32 | } |
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14 | office | 33 | |
34 | #### Hash filename. |
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11 | office | 35 | $file = strtolower( |
36 | PseudoCrypt::hash( |
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37 | preg_replace( |
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38 | '/\D/', |
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39 | '', |
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40 | hash( |
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41 | 'sha512', |
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20 | office | 42 | $data |
7 | office | 43 | ) |
44 | ) |
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14 | office | 45 | ). '.'. |
11 | office | 46 | $fileExtension |
47 | ); |
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14 | office | 48 | |
49 | #### Build the user path. |
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11 | office | 50 | $userPath = join( |
51 | DIRECTORY_SEPARATOR, |
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52 | array( |
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53 | $STORE_FOLDER, |
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54 | $file |
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55 | ) |
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56 | ); |
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57 | |||
14 | office | 58 | #### Check for path traversals |
11 | office | 59 | $pathPart = pathinfo($userPath); |
17 | office | 60 | if (strcasecmp( |
61 | realpath($pathPart['dirname']), realpath($STORE_FOLDER)) != 0) |
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14 | office | 62 | return; |
7 | office | 63 | |
14 | office | 64 | #### Store the file. |
65 | atomized_put_contents($userPath, $data); |
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66 | |||
11 | office | 67 | ### Return the URL to the file. |
7 | office | 68 | header('Content-Type: text/plain; charset=utf-8'); |
14 | office | 69 | echo sprintf('%s/%s', trim($URL_PATH, '/'), $file); |