mirror of
https://github.com/Respect/Validation.git
synced 2024-06-03 06:12:17 +02:00
ab3732f91f
SPDX IDs are shorter than licensing notes previously used, and adhere better to FOSS standards. It is also machine-readable.
41 lines
812 B
PHP
41 lines
812 B
PHP
<?php
|
|
|
|
/*
|
|
* Copyright (c) Alexandre Gomes Gaigalas <alganet@gmail.com>
|
|
* SPDX-License-Identifier: MIT
|
|
*/
|
|
|
|
declare(strict_types=1);
|
|
|
|
namespace Respect\Validation\Rules;
|
|
|
|
use function is_string;
|
|
use function mb_strlen;
|
|
use function preg_match;
|
|
|
|
/**
|
|
* Validate if a string is Base64-encoded.
|
|
*
|
|
* @author Henrique Moody <henriquemoody@gmail.com>
|
|
* @author Jens Segers <segers.jens@gmail.com>
|
|
* @author William Espindola <oi@williamespindola.com.br>
|
|
*/
|
|
final class Base64 extends AbstractRule
|
|
{
|
|
/**
|
|
* {@inheritDoc}
|
|
*/
|
|
public function validate($input): bool
|
|
{
|
|
if (!is_string($input)) {
|
|
return false;
|
|
}
|
|
|
|
if (!preg_match('#^[A-Za-z0-9+/\n\r]+={0,2}$#', $input)) {
|
|
return false;
|
|
}
|
|
|
|
return mb_strlen($input) % 4 === 0;
|
|
}
|
|
}
|