scratch – Diff between revs 13 and 14
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| Rev 13 | Rev 14 | |||
|---|---|---|---|---|
| Line 18... | Line 18... | |||
| 18 | # Raw POST data. |
18 | # Raw POST data. |
|
| 19 | $name = urldecode(@$_SERVER['HTTP_X_FILE_NAME']); |
19 | $name = urldecode(@$_SERVER['HTTP_X_FILE_NAME']); |
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| 20 | $data = file_get_contents("php://input"); |
20 | $data = file_get_contents("php://input"); |
|
| 21 | } |
21 | } |
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| Line -... | Line 22... | |||
| - | 22 | |
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| 22 | |
23 | #### Grab the file extension. |
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| Line 23... | Line 24... | |||
| 23 | $fileExtension = pathinfo($name, PATHINFO_EXTENSION); |
24 | $fileExtension = pathinfo($name, PATHINFO_EXTENSION); |
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| 24 | |
25 | |
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| 25 | #### Check that the file extension is allowed. |
26 | #### If the extension is not allowed then change it to a text extension. |
|
| 26 | if(!isset($fileExtension) || |
27 | if (!isset($fileExtension) || |
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| Line 27... | Line 28... | |||
| 27 | !in_array(strtoupper($fileExtension), $ALLOWED_FILE_EXTENSIONS)) |
28 | !in_array(strtoupper($fileExtension), $ALLOWED_FILE_EXTENSIONS)) |
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| 28 | return; |
- | ||
| 29 | |
29 | $fileExtension = 'txt'; |
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| 30 | #### Hash filename and check storage in the upload folder. |
30 | |
|
| 31 | $storePath = realpath($STORE_FOLDER); |
31 | #### Hash filename. |
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| 32 | $file = strtolower( |
32 | $file = strtolower( |
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| 33 | PseudoCrypt::hash( |
33 | PseudoCrypt::hash( |
|
| 34 | preg_replace( |
34 | preg_replace( |
|
| 35 | '/\D/', |
35 | '/\D/', |
|
| 36 | '', |
36 | '', |
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| 37 | hash( |
37 | hash( |
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| 38 | 'sha512', |
38 | 'sha512', |
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| 39 | $name |
- | ||
| 40 | ) |
39 | $name |
|
| 41 | ) |
40 | ) |
|
| 42 | ). |
41 | ) |
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| - | 42 | ). '.'. |
||
| - | 43 | $fileExtension |
||
| 43 | '.'. |
44 | ); |
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| 44 | $fileExtension |
45 | |
|
| 45 | ); |
46 | #### Build the user path. |
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| 46 | $userPath = join( |
47 | $userPath = join( |
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| 47 | DIRECTORY_SEPARATOR, |
48 | DIRECTORY_SEPARATOR, |
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| 48 | array( |
49 | array( |
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| 49 | $STORE_FOLDER, |
50 | $STORE_FOLDER, |
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| Line 50... | Line 51... | |||
| 50 | $file |
51 | $file |
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| 51 | ) |
52 | ) |
|
| 52 | ); |
53 | ); |
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| - | 54 | |
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| - | 55 | #### Check for path traversals |
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| - | 56 | $pathPart = pathinfo($userPath); |
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| 53 | |
57 | if (realpath($pathPart['dirname']) != realpath($STORE_FOLDER)) |
|
| 54 | #### Check for path traversals. |
- | ||
| 55 | $pathPart = pathinfo($userPath); |
- | ||
| Line 56... | Line 58... | |||
| 56 | if (realpath($pathPart['dirname']) == $storePath) { |
58 | return; |
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| 57 | atomized_put_contents($userPath, $data); |
59 | |
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| 58 | $output = sprintf('%s/%s', trim($URL_PATH, '/'), $file); |
60 | #### Store the file. |
|