scratch – Diff between revs 87 and 88
?pathlinks?
Rev 87 | Rev 88 | |||
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1 | <?php |
1 | <?php |
|
2 | |
2 | |
|
3 | ########################################################################### |
3 | ########################################################################### |
|
4 | ## Copyright (C) Wizardry and Steamworks 2017 - License: GNU GPLv3 ## |
4 | ## Copyright (C) Wizardry and Steamworks 2017 - License: GNU GPLv3 ## |
|
5 | ########################################################################### |
5 | ########################################################################### |
|
6 | |
6 | |
|
7 | require_once('php/pseudocrypt.php'); |
7 | require_once('php/pseudocrypt.php'); |
|
8 | require_once('php/functions.php'); |
8 | require_once('php/functions.php'); |
|
9 | require_once('vendor/autoload.php'); |
9 | require_once('vendor/autoload.php'); |
|
10 | |
10 | |
|
11 | ### Load configuration. |
11 | ### Load configuration. |
|
12 | $config = spyc_load_file('config.yaml'); |
12 | $config = spyc_load_file('config.yaml'); |
|
13 | |
13 | |
|
14 | ### If no file has been specified for download then return. |
14 | ### If no file has been specified for download then return. |
|
15 | if (!isset($_GET['hash']) or empty($_GET['hash'])) { |
15 | if (!isset($_GET['hash']) or empty($_GET['hash'])) { |
|
16 | http_response_code(404); |
16 | http_response_code(404); |
|
17 | die('File not found.'); |
17 | die('File not found.'); |
|
18 | } |
18 | } |
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19 | |
19 | |
|
20 | ### Find the requested file. |
20 | ### Find the requested file. |
|
21 | $file = array_shift( |
21 | $file = array_shift( |
|
22 | preg_grep( |
22 | preg_grep( |
|
23 | "/".$_GET['hash']."/", |
23 | "/".$_GET['hash']."/", |
|
24 | scandir($config['STORE_FOLDER']) |
24 | scandir($config['STORE_FOLDER']) |
|
25 | ) |
25 | ) |
|
26 | ); |
26 | ); |
|
27 | |
27 | |
|
28 | if (!isset($file) or empty($file)) { |
28 | if (!isset($file) or empty($file)) { |
|
29 | http_response_code(404); |
29 | http_response_code(404); |
|
30 | die('File not found.'); |
30 | die('File not found.'); |
|
31 | } |
31 | } |
|
32 | |
32 | |
|
33 | ### Check the path for path traversals. |
33 | ### Check the path for path traversals. |
|
34 | $fileExtension = pathinfo($file, PATHINFO_EXTENSION); |
34 | $fileExtension = pathinfo($file, PATHINFO_EXTENSION); |
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35 | |
35 | |
|
36 | #### If the extension is not allowed then return. |
36 | #### If the extension is not allowed then return. |
|
37 | if (!isset($fileExtension) || |
37 | if (!isset($fileExtension) || |
|
38 | !in_array(strtoupper($fileExtension), |
38 | !in_array(strtoupper($fileExtension), |
|
39 | array_map('strtoupper', $config['ALLOWED_FILE_EXTENSIONS']))) { |
39 | array_map('strtoupper', $config['ALLOWED_FILE_EXTENSIONS']))) { |
|
40 | http_response_code(403); |
40 | http_response_code(403); |
|
41 | die('File extension not allowed.'); |
41 | die('File extension not allowed.'); |
|
42 | } |
42 | } |
|
43 | |
43 | |
|
44 | #### Build the user path. |
44 | #### Build the user path. |
|
45 | $userPath = join( |
45 | $userPath = join( |
|
46 | DIRECTORY_SEPARATOR, |
46 | DIRECTORY_SEPARATOR, |
|
47 | array( |
47 | array( |
|
48 | $config['STORE_FOLDER'], |
48 | $config['STORE_FOLDER'], |
|
49 | $file |
49 | $file |
|
50 | ) |
50 | ) |
|
51 | ); |
51 | ); |
|
52 | |
52 | |
|
53 | #### Check for path traversals |
53 | #### Check for path traversals |
|
54 | $pathPart = pathinfo($userPath); |
54 | $pathPart = pathinfo($userPath); |
|
55 | if (strcasecmp( |
55 | if (strcasecmp( |
|
56 | realpath($pathPart['dirname']), realpath($config['STORE_FOLDER'])) != 0) { |
56 | realpath($pathPart['dirname']), realpath($config['STORE_FOLDER'])) != 0) { |
|
57 | http_response_code(500); |
57 | http_response_code(500); |
|
58 | die('Internal server error.'); |
58 | die('Internal server error.'); |
|
59 | } |
59 | } |
|
60 | |
60 | |
|
61 | #### Check if the file exists. |
61 | #### Check if the file exists. |
|
62 | if (!file_exists($userPath)) { |
62 | if (!file_exists($userPath)) { |
|
63 | http_response_code(404); |
63 | http_response_code(404); |
|
64 | die('File not found.'); |
64 | die('File not found.'); |
|
65 | } |
65 | } |
|
66 | |
66 | |
|
67 | list($width, $height) = getimagesize($userPath); |
67 | list($width, $height) = getimagesize($userPath); |
|
68 | |
68 | |
|
69 | # Create an OpenGraph object with validation. |
- | ||
70 | $og = new OpenGraph(); |
69 | $imagePath = $config['URL_PATH'].$_GET['hash']; |
|
- | 70 | |
||
- | 71 | echo <<<END |
||
71 | |
72 | <html> |
|
72 | $og->title('Scratch Copy') |
73 | <head> |
|
73 | ->description('Asset Sharing') |
74 | <meta property="og:site_name" content="Scratch Copy"> |
|
74 | ->url($config['URL_PATH'].$_GET['hash']) |
75 | <meta property="og:url" content="$imagePath"> |
|
75 | ->type('movie') |
76 | <meta property="og:title" content="Scratch Copy"> |
|
76 | ->image($config['URL_PATH'].$_GET['hash'], [ |
77 | <meta property="og:type" content="video.other"> |
|
77 | type => 'image/png', |
78 | <meta property="og:image" content="$imagePath"> |
|
78 | width => $width, |
79 | <meta property="og:image:width" content="$width"> |
|
- | 80 | <meta property="og:image:height" content="$height"> |
||
79 | height => $height |
81 | </head> |
|
80 | ]); |
82 | |
|
- | 83 | <body> |
||
- | 84 | <p> |
||
- | 85 | <img src="$imagePath"> |
||
- | 86 | </p> |
||
81 | |
87 | </body> |
|
82 | |
88 | |
|
83 | echo $og->renderTags(); |
89 | </html> |
|
84 | |
90 | END; |
|
85 | |
91 | |