public function validate($string, $config, $context)
{
$string = trim($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';
}
// upper-bound value, extremely high values can
// crash operating systems, see <http://ha.ckers.org/imagecrash.html>
// WARNING, above link WILL crash you if you're using Windows
if ($this->max !== null && $int > $this->max) {
return (string) $this->max;
}
return (string) $int;
}
/** * @param string $string * @param HTMLPurifier_Config $config * @param HTMLPurifier_Context $context * @return bool|string */ public function validate($string, $config, $context) { $string = trim($string); if ($string === '') { return false; } $parent_result = parent::validate($string, $config, $context); if ($parent_result !== false) { return $parent_result; } $length = strlen($string); $last_char = $string[$length - 1]; if ($last_char !== '%') { return false; } $points = substr($string, 0, $length - 1); if (!is_numeric($points)) { return false; } $points = (int) $points; if ($points < 0) { return '0%'; } if ($points > 100) { return '100%'; } return (string) $points . '%'; }