diff options
Diffstat (limited to 'extlib/HTMLPurifier/HTMLPurifier/AttrDef/CSS/Length.php')
-rw-r--r-- | extlib/HTMLPurifier/HTMLPurifier/AttrDef/CSS/Length.php | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/extlib/HTMLPurifier/HTMLPurifier/AttrDef/CSS/Length.php b/extlib/HTMLPurifier/HTMLPurifier/AttrDef/CSS/Length.php new file mode 100644 index 000000000..a07ec5813 --- /dev/null +++ b/extlib/HTMLPurifier/HTMLPurifier/AttrDef/CSS/Length.php @@ -0,0 +1,47 @@ +<?php + +/** + * Represents a Length as defined by CSS. + */ +class HTMLPurifier_AttrDef_CSS_Length extends HTMLPurifier_AttrDef +{ + + protected $min, $max; + + /** + * @param HTMLPurifier_Length $max Minimum length, or null for no bound. String is also acceptable. + * @param HTMLPurifier_Length $max Maximum length, or null for no bound. String is also acceptable. + */ + public function __construct($min = null, $max = null) { + $this->min = $min !== null ? HTMLPurifier_Length::make($min) : null; + $this->max = $max !== null ? HTMLPurifier_Length::make($max) : null; + } + + public function validate($string, $config, $context) { + $string = $this->parseCDATA($string); + + // Optimizations + if ($string === '') return false; + if ($string === '0') return '0'; + if (strlen($string) === 1) return false; + + $length = HTMLPurifier_Length::make($string); + if (!$length->isValid()) return false; + + if ($this->min) { + $c = $length->compareTo($this->min); + if ($c === false) return false; + if ($c < 0) return false; + } + if ($this->max) { + $c = $length->compareTo($this->max); + if ($c === false) return false; + if ($c > 0) return false; + } + + return $length->toString(); + } + +} + +// vim: et sw=4 sts=4 |