1 files changed, 18 insertions, 0 deletions
diff --git a/library/HTMLPurifier/AttrTransform/Border.php b/library/HTMLPurifier/AttrTransform/Border.php
new file mode 100644
index 000000000..476b0b079
--- /dev/null
+++ b/library/HTMLPurifier/AttrTransform/Border.php
@@ -0,0 +1,18 @@
+<?php
+
+/**
+ * Pre-transform that changes deprecated border attribute to CSS.
+ */
+class HTMLPurifier_AttrTransform_Border extends HTMLPurifier_AttrTransform {
+
+    public function transform($attr, $config, $context) {
+        if (!isset($attr['border'])) return $attr;
+        $border_width = $this->confiscateAttr($attr, 'border');
+        // some validation should happen here
+        $this->prependCSS($attr, "border:{$border_width}px solid;");
+        return $attr;
+    }
+
+}
+
+// vim: et sw=4 sts=4