#724184 ekes: catch failures when parsing for PubSubHubbub hub and self.

CHANGELOG.txt

@@ -4,6 +4,7 @@
 Feeds 6.x 1.0 xxxxx xx, 2010-xx-xx
 ----------------------------------
 
+- #724184 ekes: catch failures when parsing for PubSubHubbub hub and self.
 - #706984 lyricnz: Add FeedsSimplePie::parseExtensions() to allow parsing to be
   customized.
 - #728854 Scott Reynolds: Fix $queue->createItem() fails.

libraries/PuSHSubscriber.inc

@@ -75,14 +75,17 @@ class PuSHSubscriber {
     curl_setopt($request, CURLOPT_RETURNTRANSFER, TRUE);
     $data = curl_exec($request);
     if (curl_getinfo($request, CURLINFO_HTTP_CODE) == 200) {
-      $xml = new SimpleXMLElement($data);
-      $xml->registerXPathNamespace('atom', 'http://www.w3.org/2005/Atom');
-      if (empty($hub) && $hub = @current($xml->xpath("//atom:link[attribute::rel='hub']"))) {
-        $hub = (string) $hub->attributes()->href;
-      }
-      if ($self = @current($xml->xpath("//atom:link[attribute::rel='self']"))) {
-        $self = (string) $self->attributes()->href;
+      try {
+        $xml = new SimpleXMLElement($data);
+        $xml->registerXPathNamespace('atom', 'http://www.w3.org/2005/Atom');
+        if (empty($hub) && $hub = @current($xml->xpath("//atom:link[attribute::rel='hub']"))) {
+          $hub = (string) $hub->attributes()->href;
+        }
+        if ($self = @current($xml->xpath("//atom:link[attribute::rel='self']"))) {
+          $self = (string) $self->attributes()->href;
+        }
       }
+      catch (Exception $e) {}
     }
     curl_close($request);
     // Fall back to $url if $self is not given.