scratch – Blame information for rev 13
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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 | |||
23 | $fileExtension = pathinfo($name, PATHINFO_EXTENSION); |
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11 | office | 24 | |
25 | #### Check that the file extension is allowed. |
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26 | if(!isset($fileExtension) || |
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27 | !in_array(strtoupper($fileExtension), $ALLOWED_FILE_EXTENSIONS)) |
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28 | return; |
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29 | |||
30 | #### Hash filename and check storage in the upload folder. |
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31 | $storePath = realpath($STORE_FOLDER); |
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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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39 | $name |
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7 | office | 40 | ) |
41 | ) |
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11 | office | 42 | ). |
43 | '.'. |
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44 | $fileExtension |
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45 | ); |
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46 | $userPath = join( |
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47 | DIRECTORY_SEPARATOR, |
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48 | array( |
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49 | $STORE_FOLDER, |
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50 | $file |
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51 | ) |
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52 | ); |
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53 | |||
54 | #### Check for path traversals. |
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55 | $pathPart = pathinfo($userPath); |
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56 | if (realpath($pathPart['dirname']) == $storePath) { |
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57 | atomized_put_contents($userPath, $data); |
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58 | $output = sprintf('%s/%s', trim($URL_PATH, '/'), $file); |
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7 | office | 59 | } |
60 | |||
11 | office | 61 | ### Return the URL to the file. |
7 | office | 62 | header('Content-Type: text/plain; charset=utf-8'); |
63 | echo $output; |