From 24835c1164251e48037f6ddee14e4b696fe57320 Mon Sep 17 00:00:00 2001
From: Brion Vibber <brion@pobox.com>
Date: Wed, 3 Mar 2010 18:31:35 -0800
Subject: OStatus: catchable exception instead of fatal when parsing valid XML
 that isn't a valid XRD doc

---
 plugins/OStatus/lib/xrd.php | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/plugins/OStatus/lib/xrd.php b/plugins/OStatus/lib/xrd.php
index f00e1f809..aa13ef024 100644
--- a/plugins/OStatus/lib/xrd.php
+++ b/plugins/OStatus/lib/xrd.php
@@ -57,6 +57,9 @@ class XRD
             throw new Exception("Invalid XML");
         }
         $xrd_element = $dom->getElementsByTagName('XRD')->item(0);
+        if (!$xrd_element) {
+            throw new Exception("Invalid XML, missing XRD root");
+        }
 
         // Check for host-meta host
         $host = $xrd_element->getElementsByTagName('Host')->item(0);
-- 
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