scratch – Diff between revs 128 and 140
?pathlinks?
Rev 128 | Rev 140 | |||
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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 | $config = spyc_load_file('config.yaml'); |
|
13 | |
13 | |
|
14 | #### POST -> upload / GET -> download |
14 | #### POST -> upload / GET -> download |
|
15 | switch ($_SERVER['REQUEST_METHOD']) { |
15 | switch ($_SERVER['REQUEST_METHOD']) { |
|
16 | case 'POST': |
16 | case 'POST': |
|
17 | #### Script restrictions. |
17 | #### Script restrictions. |
|
18 | session_start(); |
18 | session_start(); |
|
19 | if (empty($_POST['token']) || !hash_equals($_SESSION['token'], $_POST['token'])) { |
19 | if (empty($_POST['token']) || !hash_equals($_SESSION['token'], $_POST['token'])) { |
|
20 | http_response_code(403); |
20 | http_response_code(403); |
|
21 | die('Forbidden.'); |
21 | die('Forbidden.'); |
|
22 | } |
22 | } |
|
23 | #### Retrieve uploaded file. |
23 | #### Retrieve uploaded file. |
|
24 | if (!empty($_FILES['file']) and |
24 | if (!empty($_FILES['file']) and |
|
25 | is_uploaded_file($_FILES['file']['tmp_name'])) { |
25 | is_uploaded_file($_FILES['file']['tmp_name'])) { |
|
26 | if($_FILES['file']['size'] > $config['ALLOWED_ASSET_SIZE'] * 1048576) { |
26 | if($_FILES['file']['size'] > $config['ALLOWED_ASSET_SIZE'] * 1048576) { |
|
27 | http_response_code(403); |
27 | http_response_code(403); |
|
28 | die('File size exceeds '.$config['ALLOWED_ASSET_SIZE'].'MiB.'); |
28 | die('File size exceeds '.$config['ALLOWED_ASSET_SIZE'].'MiB.'); |
|
29 | } |
29 | } |
|
30 | # Regular multipart/form-data upload. |
30 | # Regular multipart/form-data upload. |
|
31 | $name = $_FILES['file']['name']; |
31 | $name = $_FILES['file']['name']; |
|
32 | $data = atomized_get_contents($_FILES['file']['tmp_name']); |
32 | $data = atomized_get_contents($_FILES['file']['tmp_name']); |
|
33 | } else { |
33 | } else { |
|
34 | if((int)get_file_size("php://input") > $config['ALLOWED_ASSET_SIZE'] * 1048576) { |
34 | if((int)get_file_size("php://input") > $config['ALLOWED_ASSET_SIZE'] * 1048576) { |
|
35 | http_response_code(403); |
35 | http_response_code(403); |
|
36 | die('File size exceeds '.$config['ALLOWED_ASSET_SIZE'].'MiB.'); |
36 | die('File size exceeds '.$config['ALLOWED_ASSET_SIZE'].'MiB.'); |
|
37 | } |
37 | } |
|
38 | # Raw POST data. |
38 | # Raw POST data. |
|
39 | $name = urldecode(@$_SERVER['HTTP_X_FILE_NAME']); |
39 | $name = urldecode(@$_SERVER['HTTP_X_FILE_NAME']); |
|
40 | $data = atomized_get_contents("php://input"); |
40 | $data = atomized_get_contents("php://input"); |
|
41 | } |
41 | } |
|
42 | |
42 | |
|
43 | #### Grab the file extension. |
43 | #### Grab the file extension. |
|
44 | $fileExtension = pathinfo($name, PATHINFO_EXTENSION); |
44 | $fileExtension = pathinfo($name, PATHINFO_EXTENSION); |
|
45 | |
45 | |
|
46 | #### If the extension is not allowed then change it to a text extension. |
46 | #### If the extension is not allowed then change it to a text extension. |
|
47 | if (!isset($fileExtension) || |
47 | if (!isset($fileExtension) || |
|
48 | !in_array(strtoupper($fileExtension), |
48 | !in_array(strtoupper($fileExtension), |
|
49 | array_map('strtoupper', $config['ALLOWED_FILE_EXTENSIONS']))) { |
49 | array_map('strtoupper', $config['ALLOWED_FILE_EXTENSIONS']))) { |
|
50 | http_response_code(403); |
50 | http_response_code(403); |
|
51 | die('File extension not allowed.'); |
51 | die('File extension not allowed.'); |
|
52 | } |
52 | } |
|
53 | |
53 | |
|
54 | #### Hash filename. |
54 | #### Hash filename. |
|
55 | $file = strtolower( |
55 | $file = strtolower( |
|
56 | PseudoCrypt::hash( |
56 | PseudoCrypt::hash( |
|
57 | preg_replace( |
57 | preg_replace( |
|
58 | '/\D/', |
58 | '/\D/', |
|
59 | '', |
59 | '', |
|
60 | hash( |
60 | hash( |
|
61 | 'sha512', |
61 | 'sha512', |
|
62 | $data |
62 | $data |
|
63 | ) |
63 | ) |
|
64 | ), |
64 | ), |
|
65 | $config['ASSET_HASH_SIZE'] |
65 | $config['ASSET_HASH_SIZE'] |
|
66 | ) |
66 | ) |
|
67 | ); |
67 | ); |
|
68 | |
68 | |
|
69 | #### Build the user path. |
69 | #### Build the user path. |
|
70 | $userPath = join( |
70 | $userPath = join( |
|
71 | DIRECTORY_SEPARATOR, |
71 | DIRECTORY_SEPARATOR, |
|
72 | array( |
72 | array( |
|
73 | $config['STORE_FOLDER'], |
73 | $config['STORE_FOLDER'], |
|
74 | $file |
74 | $file |
|
75 | ) |
75 | ) |
|
76 | ); |
76 | ); |
|
77 | |
77 | |
|
78 | #### Check for path traversals. |
78 | #### Check for path traversals. |
|
79 | $pathPart = pathinfo($userPath.'.'.$fileExtension); |
79 | $pathPart = pathinfo($userPath.'.'.$fileExtension); |
|
80 | if (strcasecmp( |
80 | if (strcasecmp( |
|
81 | realpath($pathPart['dirname']), realpath($config['STORE_FOLDER'])) != 0) { |
81 | realpath($pathPart['dirname']), realpath($config['STORE_FOLDER'])) != 0) { |
|
82 | http_response_code(500); |
82 | http_response_code(500); |
|
83 | die('Internal server error.'); |
83 | die('Internal server error.'); |
|
84 | } |
84 | } |
|
85 | |
85 | |
|
86 | #### Store the file. |
86 | #### Store the file. |
|
87 | $timestamp = atomized_put_contents($userPath.'.'.$fileExtension, $data); |
87 | $timestamp = atomized_put_contents($userPath.'.'.$fileExtension, $data); |
|
- | 88 | |
||
- | 89 | ### Log IP address. |
||
- | 90 | $db = new PDO('sqlite:db/scratch.sqlite3'); |
||
- | 91 | $db->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION); |
||
- | 92 | try { |
||
- | 93 | $db->beginTransaction(); |
||
- | 94 | |
||
- | 95 | ## Create tags table if it does not exist. |
||
- | 96 | $db->query('CREATE TABLE IF NOT EXISTS "uploaders" ("hash" text NOT NULL COLLATE NOCASE, "ip" text COLLATE NOCASE, UNIQUE("hash") ON CONFLICT REPLACE)'); |
||
- | 97 | |
||
- | 98 | $q = $db->prepare('REPLACE INTO "uploaders" ("hash", "ip") VALUES(:hash, :ip)'); |
||
- | 99 | $q->bindParam(':hash', $file); |
||
- | 100 | $q->bindParam(':ip', $_SERVER['REMOTE_ADDR']); |
||
- | 101 | $q->execute(); |
||
- | 102 | |
||
- | 103 | $db->commit(); |
||
- | 104 | } catch (Exception $e) { |
||
- | 105 | error_log($e); |
||
- | 106 | ## Rollback. |
||
- | 107 | $db->rollback(); |
||
- | 108 | } |
||
88 | |
109 | |
|
89 | ### Process any sent tags. |
110 | ### Process any sent tags. |
|
90 | if(isset($_POST['tags'])) { |
111 | if(isset($_POST['tags'])) { |
|
91 | $tags = json_decode( |
112 | $tags = json_decode( |
|
92 | stripslashes( |
113 | stripslashes( |
|
93 | $_POST['tags'] |
114 | $_POST['tags'] |
|
94 | ) |
115 | ) |
|
95 | ); |
116 | ); |
|
96 | |
117 | |
|
97 | ## If we have any tags then insert them into the database. |
118 | ## If we have any tags then insert them into the database. |
|
98 | if(!empty($tags)) { |
119 | if(!empty($tags)) { |
|
99 | ## Connect or create the scratch database. |
120 | ## Connect or create the scratch database. |
|
100 | $db = new PDO('sqlite:db/scratch.sqlite3'); |
121 | $db = new PDO('sqlite:db/scratch.sqlite3'); |
|
101 | ## Set the error mode to exceptions. |
122 | ## Set the error mode to exceptions. |
|
102 | $db->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION); |
123 | $db->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION); |
|
103 | try { |
124 | try { |
|
104 | |
125 | |
|
105 | $db->beginTransaction(); |
126 | $db->beginTransaction(); |
|
106 | |
127 | |
|
107 | ## Create tags table if it does not exist. |
128 | ## Create tags table if it does not exist. |
|
108 | $db->query('CREATE TABLE IF NOT EXISTS "tags" ("hash" text NOT NULL COLLATE NOCASE, "tag" text COLLATE NOCASE, UNIQUE("hash", "tag") ON CONFLICT REPLACE)'); |
129 | $db->query('CREATE TABLE IF NOT EXISTS "tags" ("hash" text NOT NULL COLLATE NOCASE, "tag" text COLLATE NOCASE, UNIQUE("hash", "tag") ON CONFLICT REPLACE)'); |
|
109 | |
130 | |
|
110 | ## Now add all the tags. |
131 | ## Now add all the tags. |
|
111 | foreach($tags as $tag) { |
132 | foreach($tags as $tag) { |
|
112 | $q = $db->prepare('REPLACE INTO "tags" ("hash", "tag") VALUES(:hash, :tag)'); |
133 | $q = $db->prepare('REPLACE INTO "tags" ("hash", "tag") VALUES(:hash, :tag)'); |
|
113 | $q->bindParam(':hash', $file); |
134 | $q->bindParam(':hash', $file); |
|
114 | $q->bindParam(':tag', $tag); |
135 | $q->bindParam(':tag', $tag); |
|
115 | $q->execute(); |
136 | $q->execute(); |
|
116 | } |
137 | } |
|
117 | $db->commit(); |
138 | $db->commit(); |
|
118 | } catch (Exception $e) { |
139 | } catch (Exception $e) { |
|
119 | error_log($e); |
140 | error_log($e); |
|
120 | ## Rollback. |
141 | ## Rollback. |
|
121 | $db->rollback(); |
142 | $db->rollback(); |
|
122 | } |
143 | } |
|
123 | } |
144 | } |
|
124 | } |
145 | } |
|
125 | |
146 | |
|
126 | ### Hook for various file extensions. |
147 | ### Hook for various file extensions. |
|
127 | $opengraph = FALSE; |
148 | $opengraph = FALSE; |
|
128 | switch(strtoupper($fileExtension)) { |
149 | switch(strtoupper($fileExtension)) { |
|
129 | case 'MP4': |
150 | case 'MP4': |
|
130 | case 'GIF': |
151 | case 'GIF': |
|
131 | $opengraph = TRUE; |
152 | $opengraph = TRUE; |
|
132 | break; |
153 | break; |
|
133 | } |
154 | } |
|
134 | |
155 | |
|
135 | ### Return the URL to the file. |
156 | ### Return the URL to the file. |
|
136 | header('Content-Type: text/plain; charset=utf-8'); |
157 | header('Content-Type: text/plain; charset=utf-8'); |
|
137 | echo json_encode( |
158 | echo json_encode( |
|
138 | array( |
159 | array( |
|
139 | "hash" => $file, |
160 | "hash" => $file, |
|
140 | "timestamp" => $timestamp, |
161 | "timestamp" => $timestamp, |
|
141 | "opengraph" => $opengraph |
162 | "opengraph" => $opengraph |
|
142 | ) |
163 | ) |
|
143 | ); |
164 | ); |
|
144 | break; |
165 | break; |
|
145 | case 'GET': |
166 | case 'GET': |
|
146 | ### Tell browser not to cache files. |
167 | ### Tell browser not to cache files. |
|
147 | header("Cache-Control: no-store, no-cache, must-revalidate, max-age=0"); |
168 | header("Cache-Control: no-store, no-cache, must-revalidate, max-age=0"); |
|
148 | header("Cache-Control: post-check=0, pre-check=0", false); |
169 | header("Cache-Control: post-check=0, pre-check=0", false); |
|
149 | header("Pragma: no-cache"); |
170 | header("Pragma: no-cache"); |
|
150 | |
171 | |
|
151 | ### If no file has been specified for download then return. |
172 | ### If no file has been specified for download then return. |
|
152 | if (!isset($_GET['hash']) or empty($_GET['hash'])) { |
173 | if (!isset($_GET['hash']) or empty($_GET['hash'])) { |
|
153 | http_response_code(404); |
174 | http_response_code(404); |
|
154 | die('File not found.'); |
175 | die('File not found.'); |
|
155 | } |
176 | } |
|
156 | |
177 | |
|
157 | ### Find the requested file. |
178 | ### Find the requested file. |
|
158 | $file = array_shift( |
179 | $file = array_shift( |
|
159 | preg_grep( |
180 | preg_grep( |
|
160 | '/'.$_GET['hash'].'/', |
181 | '/'.$_GET['hash'].'/', |
|
161 | scandir($config['STORE_FOLDER']) |
182 | scandir($config['STORE_FOLDER']) |
|
162 | ) |
183 | ) |
|
163 | ); |
184 | ); |
|
164 | |
185 | |
|
165 | if (!isset($file) or empty($file)) { |
186 | if (!isset($file) or empty($file)) { |
|
166 | http_response_code(404); |
187 | http_response_code(404); |
|
167 | die('File not found.'); |
188 | die('File not found.'); |
|
168 | } |
189 | } |
|
169 | |
190 | |
|
170 | ### Check the path for path traversals. |
191 | ### Check the path for path traversals. |
|
171 | $fileExtension = pathinfo($file, PATHINFO_EXTENSION); |
192 | $fileExtension = pathinfo($file, PATHINFO_EXTENSION); |
|
172 | |
193 | |
|
173 | #### If the extension is not allowed then return. |
194 | #### If the extension is not allowed then return. |
|
174 | if (!isset($fileExtension) || |
195 | if (!isset($fileExtension) || |
|
175 | !in_array(strtoupper($fileExtension), |
196 | !in_array(strtoupper($fileExtension), |
|
176 | array_map('strtoupper', $config['ALLOWED_FILE_EXTENSIONS']))) { |
197 | array_map('strtoupper', $config['ALLOWED_FILE_EXTENSIONS']))) { |
|
177 | http_response_code(403); |
198 | http_response_code(403); |
|
178 | die('File extension not allowed.'); |
199 | die('File extension not allowed.'); |
|
179 | } |
200 | } |
|
180 | |
201 | |
|
181 | #### Build the user path. |
202 | #### Build the user path. |
|
182 | $userPath = join( |
203 | $userPath = join( |
|
183 | DIRECTORY_SEPARATOR, |
204 | DIRECTORY_SEPARATOR, |
|
184 | array( |
205 | array( |
|
185 | $config['STORE_FOLDER'], |
206 | $config['STORE_FOLDER'], |
|
186 | $file |
207 | $file |
|
187 | ) |
208 | ) |
|
188 | ); |
209 | ); |
|
189 | |
210 | |
|
190 | #### Check for path traversals |
211 | #### Check for path traversals |
|
191 | $pathPart = pathinfo($userPath); |
212 | $pathPart = pathinfo($userPath); |
|
192 | if (strcasecmp( |
213 | if (strcasecmp( |
|
193 | realpath($pathPart['dirname']), realpath($config['STORE_FOLDER'])) != 0) { |
214 | realpath($pathPart['dirname']), realpath($config['STORE_FOLDER'])) != 0) { |
|
194 | http_response_code(500); |
215 | http_response_code(500); |
|
195 | die('Internal server error.'); |
216 | die('Internal server error.'); |
|
196 | } |
217 | } |
|
197 | |
218 | |
|
198 | ### Hook for various file extensions. |
219 | ### Hook for various file extensions. |
|
199 | switch(strtoupper($fileExtension)) { |
220 | switch(strtoupper($fileExtension)) { |
|
200 | case "HTML": |
221 | case "HTML": |
|
201 | case "HTM": |
222 | case "HTM": |
|
202 | header('Content-type: text/html'); |
223 | header('Content-type: text/html'); |
|
203 | break; |
224 | break; |
|
204 | break; |
225 | break; |
|
205 | case "URL": |
226 | case "URL": |
|
206 | if(preg_match( |
227 | if(preg_match( |
|
207 | "/URL=(https?:\/\/[\-_\.\+!\*'\(\),a-zA-Z0-9]+:?[0-9]{0,5}\/.*?)\n/", |
228 | "/URL=(https?:\/\/[\-_\.\+!\*'\(\),a-zA-Z0-9]+:?[0-9]{0,5}\/.*?)\n/", |
|
208 | file_get_contents($userPath), $matches)) { |
229 | file_get_contents($userPath), $matches)) { |
|
209 | header('Location: '.$matches[1]); |
230 | header('Location: '.$matches[1]); |
|
210 | return; |
231 | return; |
|
211 | } |
232 | } |
|
212 | break; |
233 | break; |
|
213 | default: |
234 | default: |
|
214 | ### Open MIME info database and send the content type. |
235 | ### Open MIME info database and send the content type. |
|
215 | $finfo = finfo_open(FILEINFO_MIME_TYPE); |
236 | $finfo = finfo_open(FILEINFO_MIME_TYPE); |
|
216 | if (!$finfo) { |
237 | if (!$finfo) { |
|
217 | http_response_code(500); |
238 | http_response_code(500); |
|
218 | die('Internal server error.'); |
239 | die('Internal server error.'); |
|
219 | } |
240 | } |
|
220 | header('Content-type: '.finfo_file($finfo, $userPath)); |
241 | header('Content-type: '.finfo_file($finfo, $userPath)); |
|
221 | finfo_close($finfo); |
242 | finfo_close($finfo); |
|
222 | break; |
243 | break; |
|
223 | } |
244 | } |
|
224 | |
245 | |
|
225 | ### Send the file along with the inline content disposition. |
246 | ### Send the file along with the inline content disposition. |
|
226 | header('Content-length: '.(int)get_file_size($userPath)); |
247 | header('Content-length: '.(int)get_file_size($userPath)); |
|
227 | header('Content-Disposition: inline; filename="' . basename($userPath) . '"'); |
248 | header('Content-Disposition: inline; filename="' . basename($userPath) . '"'); |
|
228 | header('Content-Transfer-Encoding: binary'); |
249 | header('Content-Transfer-Encoding: binary'); |
|
229 | header('X-Sendfile: '.$userPath); |
250 | header('X-Sendfile: '.$userPath); |
|
230 | break; |
251 | break; |
|
231 | } |
252 | } |
|
232 | |
253 | |