mirror of
https://github.com/ezyang/htmlpurifier.git
synced 2024-12-23 17:01:51 +00:00
30 lines
675 B
PHP
30 lines
675 B
PHP
|
<?php
|
||
|
|
|
||
|
|
require_once 'HTMLPurifier/AttrDef.php';
|
||
|
|
|
||
|
|
class HTMLPurifier_AttrDef_Pixels extends HTMLPurifier_AttrDef
|
||
|
|
{
|
||
|
|
|
||
|
|
function validate($string) {
|
||
|
|
|
||
|
|
$string = trim($string);
|
||
|
|
if ($string === '0') return $string;
|
||
|
|
if ($string === '') return false;
|
||
|
|
$length = strlen($string);
|
||
|
|
if (substr($string, $length - 2) == 'px') {
|
||
|
|
$string = substr($string, 0, $length - 2);
|
||
|
|
}
|
||
|
|
if (!is_numeric($string)) return false;
|
||
|
|
$int = (int) $string;
|
||
|
|
|
||
|
|
if ($int < 0) return '0';
|
||
|
|
|
||
|
|
// could use some upper-bound checking
|
||
|
|
|
||
|
|
return (string) $int;
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
?>
|