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30 lines
675 B
PHP
30 lines
675 B
PHP
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<?php
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require_once 'HTMLPurifier/AttrDef.php';
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class HTMLPurifier_AttrDef_Pixels extends HTMLPurifier_AttrDef
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{
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function validate($string) {
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$string = trim($string);
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if ($string === '0') return $string;
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if ($string === '') return false;
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$length = strlen($string);
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if (substr($string, $length - 2) == 'px') {
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$string = substr($string, 0, $length - 2);
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}
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if (!is_numeric($string)) return false;
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$int = (int) $string;
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if ($int < 0) return '0';
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// could use some upper-bound checking
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return (string) $int;
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}
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}
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?>
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