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-rw-r--r--lib/htmlpurifier/library/HTMLPurifier/AttrDef/CSS/Length.php47
1 files changed, 47 insertions, 0 deletions
diff --git a/lib/htmlpurifier/library/HTMLPurifier/AttrDef/CSS/Length.php b/lib/htmlpurifier/library/HTMLPurifier/AttrDef/CSS/Length.php
new file mode 100644
index 000000000..a07ec5813
--- /dev/null
+++ b/lib/htmlpurifier/library/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