From f45a286b8d62f710b519a98c7d4b75a0c34d5d10 Mon Sep 17 00:00:00 2001
From: Andrew Dolgov <fox@bah.org.ru>
Date: Mon, 22 Jun 2009 13:56:49 +0400
Subject: strip_tags_long: use htmlpurifier to properly reformat html content

---
 .../HTMLPurifier/AttrTransform/ImgRequired.php     | 42 ++++++++++++++++++++++
 1 file changed, 42 insertions(+)
 create mode 100755 lib/htmlpurifier/library/HTMLPurifier/AttrTransform/ImgRequired.php

(limited to 'lib/htmlpurifier/library/HTMLPurifier/AttrTransform/ImgRequired.php')

diff --git a/lib/htmlpurifier/library/HTMLPurifier/AttrTransform/ImgRequired.php b/lib/htmlpurifier/library/HTMLPurifier/AttrTransform/ImgRequired.php
new file mode 100755
index 000000000..25c9403c2
--- /dev/null
+++ b/lib/htmlpurifier/library/HTMLPurifier/AttrTransform/ImgRequired.php
@@ -0,0 +1,42 @@
+<?php
+
+// must be called POST validation
+
+/**
+ * Transform that supplies default values for the src and alt attributes
+ * in img tags, as well as prevents the img tag from being removed
+ * because of a missing alt tag. This needs to be registered as both
+ * a pre and post attribute transform.
+ */
+class HTMLPurifier_AttrTransform_ImgRequired extends HTMLPurifier_AttrTransform
+{
+
+    public function transform($attr, $config, $context) {
+
+        $src = true;
+        if (!isset($attr['src'])) {
+            if ($config->get('Core', 'RemoveInvalidImg')) return $attr;
+            $attr['src'] = $config->get('Attr', 'DefaultInvalidImage');
+            $src = false;
+        }
+
+        if (!isset($attr['alt'])) {
+            if ($src) {
+                $alt = $config->get('Attr', 'DefaultImageAlt');
+                if ($alt === null) {
+                    $attr['alt'] = basename($attr['src']);
+                } else {
+                    $attr['alt'] = $alt;
+                }
+            } else {
+                $attr['alt'] = $config->get('Attr', 'DefaultInvalidImageAlt');
+            }
+        }
+
+        return $attr;
+
+    }
+
+}
+
+// vim: et sw=4 sts=4
-- 
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