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Make wp_kses_no_null() remove any invalid control characters in a string.

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props mauteri, miqrogroove.
fixes #28506.
Built from https://develop.svn.wordpress.org/trunk@28942


git-svn-id: http://core.svn.wordpress.org/trunk@28740 1a063a9b-81f0-0310-95a4-ce76da25c4cd
This commit is contained in:
Sergey Biryukov 2014-07-01 18:01:17 +00:00
parent 3705febc40
commit 788597141a
1 changed files with 4 additions and 2 deletions
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6
wp-includes/kses.php
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@ -991,7 +991,9 @@ function wp_kses_bad_protocol($string, $allowed_protocols) {
}
/**
* Removes any null characters in $string.
* Removes any invalid control characters in $string.
*
* Also removes any instance of the '\0' string.
*
* @since 1.0.0
*
@ -999,7 +1001,7 @@ function wp_kses_bad_protocol($string, $allowed_protocols) {
* @return string
*/
function wp_kses_no_null($string) {
$string = preg_replace('/\0+/', '', $string);
$string = preg_replace('/[\x00-\x08\x0B\x0C\x0E-\x1F]/', '', $string);
$string = preg_replace('/(\\\\0)+/', '', $string);
return $string;