+$response->header( 'Cache-control: max-age=600' );
+
+print '<?xml version="1.0"?>';
+print Xml::openElement( 'OpenSearchDescription',
+ array(
+ 'xmlns' => 'http://a9.com/-/spec/opensearch/1.1/',
+ 'xmlns:moz' => 'http://www.mozilla.org/2006/browser/search/' ) );
+
+// The spec says the ShortName must be no longer than 16 characters,
+// but 16 is *realllly* short. In practice, browsers don't appear to care
+// when we give them a longer string, so we're no longer attempting to trim.
+//
+// Note: ShortName and the <link title=""> need to match; they are used as
+// a key for identifying if the search engine has been added already, *and*
+// as the display name presented to the end-user.
+//
+// Behavior seems about the same between Firefox and IE 7/8 here.
+// 'Description' doesn't appear to be used by either.
+$fullName = wfMsgForContent( 'opensearch-desc' );
+print Xml::element( 'ShortName', null, $fullName );
+print Xml::element( 'Description', null, $fullName );
+
+// By default we'll use the site favicon.
+// Double-check if IE supports this properly?
+print Xml::element( 'Image',
+ array(
+ 'height' => 16,
+ 'width' => 16,
+ 'type' => 'image/x-icon' ),
+ wfExpandUrl( $wgFavicon ) );
+
+$urls = array();