scratch – Diff between revs 53 and 57
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Rev 53 | Rev 57 | |||
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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('inc/pseudocrypt.php'); |
7 | require_once('inc/pseudocrypt.php'); |
|
8 | require_once('inc/functions.php'); |
8 | require_once('inc/functions.php'); |
|
9 | require_once('config.php'); |
9 | require_once('config.php'); |
|
10 | |
10 | |
|
11 | #### POST -> upload / GET -> download |
11 | #### POST -> upload / GET -> download |
|
12 | switch ($_SERVER['REQUEST_METHOD']) { |
12 | switch ($_SERVER['REQUEST_METHOD']) { |
|
13 | case 'POST': |
13 | case 'POST': |
|
14 | #### Retrieve uploaded file. |
14 | #### Retrieve uploaded file. |
|
15 | if (!empty($_FILES['file']) and |
15 | if (!empty($_FILES['file']) and |
|
16 | is_uploaded_file($_FILES['file']['tmp_name'])) { |
16 | is_uploaded_file($_FILES['file']['tmp_name'])) { |
|
- | 17 | if($_FILES['file']['size'] > $ALLOWED_ASSET_SIZE * 1048576) { |
||
- | 18 | header('File size exceeds '.$ALLOWED_ASSET_SIZE.'MiB.', true, 403); |
||
- | 19 | return; |
||
- | 20 | } |
||
17 | # Regular multipart/form-data upload. |
21 | # Regular multipart/form-data upload. |
|
18 | $name = $_FILES['file']['name']; |
22 | $name = $_FILES['file']['name']; |
|
19 | $data = file_get_contents($_FILES['file']['tmp_name']); |
23 | $data = atomized_get_contents($_FILES['file']['tmp_name']); |
|
20 | } else { |
24 | } else { |
|
- | 25 | if((int)get_file_size("php://input") > $ALLOWED_ASSET_SIZE * 1048576) { |
||
- | 26 | header('File size exceeds '.$ALLOWED_ASSET_SIZE.'MiB.', true, 403); |
||
- | 27 | return; |
||
- | 28 | } |
||
21 | # Raw POST data. |
29 | # Raw POST data. |
|
22 | $name = urldecode(@$_SERVER['HTTP_X_FILE_NAME']); |
30 | $name = urldecode(@$_SERVER['HTTP_X_FILE_NAME']); |
|
23 | $data = file_get_contents("php://input"); |
31 | $data = atomized_get_contents("php://input"); |
|
24 | } |
32 | } |
|
25 | |
33 | |
|
26 | #### Grab the file extension. |
34 | #### Grab the file extension. |
|
27 | $fileExtension = pathinfo($name, PATHINFO_EXTENSION); |
35 | $fileExtension = pathinfo($name, PATHINFO_EXTENSION); |
|
28 | |
36 | |
|
29 | #### If the extension is not allowed then change it to a text extension. |
37 | #### If the extension is not allowed then change it to a text extension. |
|
30 | if (!isset($fileExtension) || |
38 | if (!isset($fileExtension) || |
|
31 | !in_array(strtoupper($fileExtension), |
39 | !in_array(strtoupper($fileExtension), |
|
32 | array_map('strtoupper', $ALLOWED_FILE_EXTENSIONS))) { |
40 | array_map('strtoupper', $ALLOWED_FILE_EXTENSIONS))) { |
|
33 | header("HTTP/1.1 500 Internal Server Error", true, 500); |
41 | header('File extension not allowed.', true, 403); |
|
34 | return; |
42 | return; |
|
35 | } |
43 | } |
|
36 | |
44 | |
|
37 | #### Hash filename. |
45 | #### Hash filename. |
|
38 | $file = strtolower( |
46 | $file = strtolower( |
|
39 | PseudoCrypt::hash( |
47 | PseudoCrypt::hash( |
|
40 | preg_replace( |
48 | preg_replace( |
|
41 | '/\D/', |
49 | '/\D/', |
|
42 | '', |
50 | '', |
|
43 | hash( |
51 | hash( |
|
44 | 'sha512', |
52 | 'sha512', |
|
45 | $data |
53 | $data |
|
46 | ) |
54 | ) |
|
47 | ), |
55 | ), |
|
48 | $ASSET_HASH_SIZE |
56 | $ASSET_HASH_SIZE |
|
49 | ) |
57 | ) |
|
50 | ); |
58 | ); |
|
51 | |
59 | |
|
52 | #### Build the user path. |
60 | #### Build the user path. |
|
53 | $userPath = join( |
61 | $userPath = join( |
|
54 | DIRECTORY_SEPARATOR, |
62 | DIRECTORY_SEPARATOR, |
|
55 | array( |
63 | array( |
|
56 | $STORE_FOLDER, |
64 | $STORE_FOLDER, |
|
57 | $file |
65 | $file |
|
58 | ) |
66 | ) |
|
59 | ); |
67 | ); |
|
60 | |
68 | |
|
61 | #### Check for path traversals |
69 | #### Check for path traversals |
|
62 | $pathPart = pathinfo($userPath.'.'.$fileExtension); |
70 | $pathPart = pathinfo($userPath.'.'.$fileExtension); |
|
63 | if (strcasecmp( |
71 | if (strcasecmp( |
|
64 | realpath($pathPart['dirname']), realpath($STORE_FOLDER)) != 0) { |
72 | realpath($pathPart['dirname']), realpath($STORE_FOLDER)) != 0) { |
|
- | 73 | header('Internal server error.', true, 500); |
||
65 | return; |
74 | return; |
|
66 | } |
75 | } |
|
67 | |
76 | |
|
68 | #### Store the file. |
77 | #### Store the file. |
|
69 | atomized_put_contents($userPath.'.'.$fileExtension, $data); |
78 | atomized_put_contents($userPath.'.'.$fileExtension, $data); |
|
70 | |
79 | |
|
71 | ### Return the URL to the file. |
80 | ### Return the URL to the file. |
|
72 | header('Content-Type: text/plain; charset=utf-8'); |
81 | header('Content-Type: text/plain; charset=utf-8'); |
|
73 | echo sprintf('%s/%s', trim($URL_PATH, '/'), $file); |
82 | echo sprintf('%s/%s', trim($URL_PATH, '/'), $file); |
|
74 | break; |
83 | break; |
|
75 | case 'GET': |
84 | case 'GET': |
|
76 | ### If no file has been specified for download then return. |
85 | ### If no file has been specified for download then return. |
|
77 | if (!isset($_GET['o']) or empty($_GET['o'])) { |
86 | if (!isset($_GET['o']) or empty($_GET['o'])) { |
|
78 | http_response_code(404); |
87 | header('File not found.', true, 404); |
|
79 | return; |
88 | return; |
|
80 | } |
89 | } |
|
81 | |
90 | |
|
82 | ### Find the requested file. |
91 | ### Find the requested file. |
|
83 | $file = array_shift( |
92 | $file = array_shift( |
|
84 | preg_grep( |
93 | preg_grep( |
|
85 | "/$_GET[o]/", |
94 | "/$_GET[o]/", |
|
86 | scandir($STORE_FOLDER) |
95 | scandir($STORE_FOLDER) |
|
87 | ) |
96 | ) |
|
88 | ); |
97 | ); |
|
89 | |
98 | |
|
90 | if (!isset($file) or empty($file)) |
99 | if (!isset($file) or empty($file)) |
|
91 | return; |
100 | return; |
|
92 | |
101 | |
|
93 | ### Check the path for path traversals. |
102 | ### Check the path for path traversals. |
|
94 | $fileExtension = pathinfo($file, PATHINFO_EXTENSION); |
103 | $fileExtension = pathinfo($file, PATHINFO_EXTENSION); |
|
95 | |
104 | |
|
96 | #### If the extension is not allowed then return. |
105 | #### If the extension is not allowed then return. |
|
97 | if (!isset($fileExtension) || |
106 | if (!isset($fileExtension) || |
|
98 | !in_array(strtoupper($fileExtension), |
107 | !in_array(strtoupper($fileExtension), |
|
99 | array_map('strtoupper', $ALLOWED_FILE_EXTENSIONS))) { |
108 | array_map('strtoupper', $ALLOWED_FILE_EXTENSIONS))) { |
|
100 | header("HTTP/1.1 500 Internal Server Error", true, 500); |
109 | header('File extension not allowed.', true, 403); |
|
101 | return; |
110 | return; |
|
102 | } |
111 | } |
|
103 | |
112 | |
|
104 | #### Build the user path. |
113 | #### Build the user path. |
|
105 | $userPath = join( |
114 | $userPath = join( |
|
106 | DIRECTORY_SEPARATOR, |
115 | DIRECTORY_SEPARATOR, |
|
107 | array( |
116 | array( |
|
108 | $STORE_FOLDER, |
117 | $STORE_FOLDER, |
|
109 | $file |
118 | $file |
|
110 | ) |
119 | ) |
|
111 | ); |
120 | ); |
|
112 | |
121 | |
|
113 | #### Check for path traversals |
122 | #### Check for path traversals |
|
114 | $pathPart = pathinfo($userPath); |
123 | $pathPart = pathinfo($userPath); |
|
115 | if (strcasecmp( |
124 | if (strcasecmp( |
|
116 | realpath($pathPart['dirname']), realpath($STORE_FOLDER)) != 0) { |
125 | realpath($pathPart['dirname']), realpath($STORE_FOLDER)) != 0) { |
|
- | 126 | header('Internal server error.', true, 500); |
||
117 | return; |
127 | return; |
|
118 | } |
128 | } |
|
119 | |
129 | |
|
120 | ### Hook for HTML files to display properly. |
130 | ### Hook for HTML files to display properly. |
|
121 | switch(strtoupper($fileExtension)) { |
131 | switch(strtoupper($fileExtension)) { |
|
122 | case "HTML": |
132 | case "HTML": |
|
123 | case "HTM": |
133 | case "HTM": |
|
124 | header('Content-type: text/html'); |
134 | header('Content-type: text/html'); |
|
125 | break; |
135 | break; |
|
126 | break; |
136 | break; |
|
127 | default: |
137 | default: |
|
128 | ### Open MIME info database and send the content type. |
138 | ### Open MIME info database and send the content type. |
|
129 | $finfo = finfo_open(FILEINFO_MIME_TYPE); |
139 | $finfo = finfo_open(FILEINFO_MIME_TYPE); |
|
130 | if (!$finfo) { |
140 | if (!$finfo) { |
|
131 | http_response_code(500); |
141 | header('Internal server error.', true, 500); |
|
132 | return; |
142 | return; |
|
133 | } |
143 | } |
|
134 | |
- | ||
135 | header('Content-type: '.finfo_file($finfo, $userPath)); |
144 | header('Content-type: '.finfo_file($finfo, $userPath)); |
|
136 | finfo_close($finfo); |
145 | finfo_close($finfo); |
|
137 | break; |
146 | break; |
|
138 | } |
147 | } |
|
139 | |
148 | |
|
140 | ### Send the file along with the inline content disposition. |
149 | ### Send the file along with the inline content disposition. |
|
141 | header('Content-length: '.(int)get_file_size($userPath)); |
150 | header('Content-length: '.(int)get_file_size($userPath)); |
|
142 | header('Content-Disposition: inline; filename="' . basename($userPath) . '"'); |
151 | header('Content-Disposition: inline; filename="' . basename($userPath) . '"'); |
|
143 | header('Content-Transfer-Encoding: binary'); |
152 | header('Content-Transfer-Encoding: binary'); |
|
144 | header('X-Sendfile: '.$userPath); |
153 | header('X-Sendfile: '.$userPath); |
|
145 | break; |
154 | break; |
|
146 | } |
155 | } |
|
147 | |
156 | |