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1 | <?php | |
2 | ||
3 | namespace Shaarli\Http; | |
4 | ||
5 | /** | |
6 | * URL-safe Base64 operations | |
7 | * | |
8 | * @see https://en.wikipedia.org/wiki/Base64#URL_applications | |
9 | */ | |
10 | class Base64Url | |
11 | { | |
12 | /** | |
13 | * Base64Url-encodes data | |
14 | * | |
15 | * @param string $data Data to encode | |
16 | * | |
17 | * @return string Base64Url-encoded data | |
18 | */ | |
19 | public static function encode($data) | |
20 | { | |
21 | return rtrim(strtr(base64_encode($data), '+/', '-_'), '='); | |
22 | } | |
23 | ||
24 | /** | |
25 | * Decodes Base64Url-encoded data | |
26 | * | |
27 | * @param string $data Data to decode | |
28 | * | |
29 | * @return string Decoded data | |
30 | */ | |
31 | public static function decode($data) | |
32 | { | |
33 | return base64_decode(str_pad(strtr($data, '-_', '+/'), strlen($data) % 4, '=', STR_PAD_RIGHT)); | |
34 | } | |
35 | } |