wp-optimize / vendor / rosell-dk / webp-convert / src / Helpers / Sanitize.php

Sanitize.php in WP-Optimize – Cache, Compress images, Minify & Clean database to boost page speed & performance 3.2.3, at vendor/rosell-dk/webp-convert/src/Helpers/Sanitize.php

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1	<?php
2
3	namespace WebPConvert\Helpers;
4
5	class Sanitize
6	{
7
8	/**
9	* The NUL character is a demon, because it can be used to bypass other tests
10	* See https://st-g.de/2011/04/doing-filename-checks-securely-in-PHP.
11	*
12	* @param string $string string remove NUL characters in
13	*/
14	public static function removeNUL($string)
15	{
16	return str_replace(chr(0), '', $string);
17	}
18
19	public static function removeStreamWrappers($string)
20	{
21	return preg_replace('#^\\w+://#', '', $string);
22	}
23
24	public static function path($string)
25	{
26	$string = self::removeNUL($string);
27	$string = self::removeStreamWrappers($string);
28	return $string;
29	}
30	}
31