1 files changed, 28 insertions, 0 deletions

diff --git a/inc/3rdparty/htmlpurifier/HTMLPurifier/AttrTransform/Background.php b/inc/3rdparty/htmlpurifier/HTMLPurifier/AttrTransform/Background.php
new file mode 100644
index 00000000..f0f00068
--- /dev/null
+++ b/inc/3rdparty/htmlpurifier/HTMLPurifier/AttrTransform/Background.php
@@ -0,0 +1,28 @@
+<?php

+

+/**

+ * Pre-transform that changes proprietary background attribute to CSS.

+ */

+class HTMLPurifier_AttrTransform_Background extends HTMLPurifier_AttrTransform

+{

+    /**

+     * @param array $attr

+     * @param HTMLPurifier_Config $config

+     * @param HTMLPurifier_Context $context

+     * @return array

+     */

+    public function transform($attr, $config, $context)

+    {

+        if (!isset($attr['background'])) {

+            return $attr;

+        }

+

+        $background = $this->confiscateAttr($attr, 'background');

+        // some validation should happen here

+

+        $this->prependCSS($attr, "background-image:url($background);");

+        return $attr;

+    }

+}

+

+// vim: et sw=4 sts=4