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Guard | |
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6.04 |
1 | <?php |
2 | /** |
3 | * Jingga |
4 | * |
5 | * PHP Version 8.1 |
6 | * |
7 | * @package phpOMS\Security |
8 | * @copyright Dennis Eichhorn |
9 | * @license OMS License 2.0 |
10 | * @version 1.0.0 |
11 | * @link https://jingga.app |
12 | */ |
13 | declare(strict_types=1); |
14 | |
15 | namespace phpOMS\Security; |
16 | |
17 | use phpOMS\System\File\FileUtils; |
18 | |
19 | /** |
20 | * Php code security class. |
21 | * |
22 | * This can be used to guard against certain vulnerabilities |
23 | * |
24 | * @package phpOMS\Security |
25 | * @license OMS License 2.0 |
26 | * @link https://jingga.app |
27 | * @since 1.0.0 |
28 | */ |
29 | final class Guard |
30 | { |
31 | /** |
32 | * Base path for the application |
33 | * |
34 | * @var string |
35 | * @since 1.0.0 |
36 | */ |
37 | public static string $BASE_PATH = __DIR__ . '/../../'; |
38 | |
39 | /** |
40 | * Make sure a path is part of a base path |
41 | * |
42 | * This can be used to verify if a path goes outside of the allowed path bounds |
43 | * |
44 | * @param string $path Path to check |
45 | * @param string $base Base path |
46 | * |
47 | * @return bool |
48 | * |
49 | * @since 1.0.0 |
50 | */ |
51 | public static function isSafePath(string $path, string $base = '') : bool |
52 | { |
53 | return \str_starts_with( |
54 | FileUtils::absolute($path), |
55 | FileUtils::absolute(empty($base) ? self::$BASE_PATH : $base) |
56 | ); |
57 | } |
58 | |
59 | /** |
60 | * Remove slashes from a string or array |
61 | * |
62 | * @template T of string|array |
63 | * |
64 | * @param T $data Data to unslash |
65 | * |
66 | * @return (T is string ? string : array) |
67 | * |
68 | * @since 1.0.0 |
69 | */ |
70 | public static function unslash(string | array $data) : string|array |
71 | { |
72 | if (\is_array($data)) { |
73 | $result = []; |
74 | foreach ($data as $key => $value) { |
75 | $result[$key] = \is_string($value) || \is_array($value) |
76 | ? self::unslash($value) |
77 | : $value; |
78 | } |
79 | |
80 | return $result; |
81 | } elseif (\is_string($data)) { |
82 | return \stripslashes($data); |
83 | } |
84 | |
85 | return $data; |
86 | } |
87 | } |