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-rw-r--r--application/Base64Url.php34
1 files changed, 34 insertions, 0 deletions
diff --git a/application/Base64Url.php b/application/Base64Url.php
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1<?php
2
3namespace Shaarli;
4
5
6/**
7 * URL-safe Base64 operations
8 *
9 * @see https://en.wikipedia.org/wiki/Base64#URL_applications
10 */
11class Base64Url
12{
13 /**
14 * Base64Url-encodes data
15 *
16 * @param string $data Data to encode
17 *
18 * @return string Base64Url-encoded data
19 */
20 public static function encode($data) {
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 return base64_decode(str_pad(strtr($data, '-_', '+/'), strlen($data) % 4, '=', STR_PAD_RIGHT));
33 }
34}