From a276778aea76140c6eae3f3feb4634e2e5d5ac6e Mon Sep 17 00:00:00 2001
From: Dan Poltawski <dan.poltawski@luns.net.uk>
Date: Sat, 6 Aug 2011 21:11:52 +0100
Subject: [PATCH] MDL-28059 weblib - don't strip mailto: anchors

---
 lib/weblib.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/weblib.php b/lib/weblib.php
index 1232659a261..d314ef249a1 100644
--- a/lib/weblib.php
+++ b/lib/weblib.php
@@ -1528,7 +1528,7 @@ function purify_html($text, $options = array()) {
         $config->set('Core.ConvertDocumentToFragment', true);
         $config->set('Core.Encoding', 'UTF-8');
         $config->set('HTML.Doctype', 'XHTML 1.0 Transitional');
-        $config->set('URI.AllowedSchemes', array('http'=>true, 'https'=>true, 'ftp'=>true, 'irc'=>true, 'nntp'=>true, 'news'=>true, 'rtsp'=>true, 'teamspeak'=>true, 'gopher'=>true, 'mms'=>true));
+        $config->set('URI.AllowedSchemes', array('http'=>true, 'https'=>true, 'ftp'=>true, 'irc'=>true, 'nntp'=>true, 'news'=>true, 'rtsp'=>true, 'teamspeak'=>true, 'gopher'=>true, 'mms'=>true, 'mailto'=>true));
         $config->set('Attr.AllowedFrameTargets', array('_blank'));
 
         if (!empty($CFG->allowobjectembed)) {