scratch – Blame information for rev 87
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Rev | Author | Line No. | Line |
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86 | 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 | |||
7 | require_once('php/pseudocrypt.php'); |
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8 | require_once('php/functions.php'); |
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87 | office | 9 | require_once('vendor/autoload.php'); |
86 | office | 10 | |
11 | ### Load configuration. |
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12 | $config = spyc_load_file('config.yaml'); |
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13 | |||
14 | ### If no file has been specified for download then return. |
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15 | if (!isset($_GET['hash']) or empty($_GET['hash'])) { |
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16 | http_response_code(404); |
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17 | die('File not found.'); |
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18 | } |
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19 | |||
20 | ### Find the requested file. |
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21 | $file = array_shift( |
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22 | preg_grep( |
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23 | "/".$_GET['hash']."/", |
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24 | scandir($config['STORE_FOLDER']) |
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25 | ) |
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26 | ); |
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27 | |||
28 | if (!isset($file) or empty($file)) { |
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29 | http_response_code(404); |
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30 | die('File not found.'); |
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31 | } |
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32 | |||
33 | ### Check the path for path traversals. |
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34 | $fileExtension = pathinfo($file, PATHINFO_EXTENSION); |
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35 | |||
36 | #### If the extension is not allowed then return. |
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37 | if (!isset($fileExtension) || |
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38 | !in_array(strtoupper($fileExtension), |
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39 | array_map('strtoupper', $config['ALLOWED_FILE_EXTENSIONS']))) { |
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40 | http_response_code(403); |
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41 | die('File extension not allowed.'); |
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42 | } |
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43 | |||
44 | #### Build the user path. |
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45 | $userPath = join( |
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46 | DIRECTORY_SEPARATOR, |
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47 | array( |
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48 | $config['STORE_FOLDER'], |
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49 | $file |
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50 | ) |
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51 | ); |
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52 | |||
53 | #### Check for path traversals |
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54 | $pathPart = pathinfo($userPath); |
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55 | if (strcasecmp( |
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56 | realpath($pathPart['dirname']), realpath($config['STORE_FOLDER'])) != 0) { |
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57 | http_response_code(500); |
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58 | die('Internal server error.'); |
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59 | } |
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60 | |||
61 | #### Check if the file exists. |
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62 | if (!file_exists($userPath)) { |
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63 | http_response_code(404); |
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64 | die('File not found.'); |
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65 | } |
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66 | |||
67 | list($width, $height) = getimagesize($userPath); |
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68 | |||
69 | # Create an OpenGraph object with validation. |
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70 | $og = new OpenGraph(); |
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71 | |||
72 | $og->title('Scratch Copy') |
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73 | ->description('Asset Sharing') |
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74 | ->url($config['URL_PATH'].$_GET['hash']) |
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75 | ->type('movie') |
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76 | ->image($config['URL_PATH'].$_GET['hash'], [ |
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77 | type => 'image/png', |
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78 | width => $width, |
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79 | height => $height |
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80 | ]); |
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81 | |||
82 | |||
83 | echo $og->renderTags(); |
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84 |