- $conf['meta_ref'] is a new configuration parameter (Default true)

Meta tags for description, author, and keywords are generated,
except if meta robots "noindex" is forced (with some pages like search, recent cats, etc.).

In addition, $conf['meta_ref'] = false is forcing "noindex, nofollow".

git-svn-id: http://piwigo.org/svn/branches/2.0@3040 68402e56-0260-453c-a942-63ccdbb3a9ee

include/page_header.php

@@ -56,6 +56,13 @@ if ( !empty($header_notes) )
   $template->assign('header_notes',$header_notes);
 }
 
+// No referencing is required
+if ( !$conf['meta_ref'] ) 
+{
+  $page['meta_robots']['noindex'] = 1;
+  $page['meta_robots']['nofollow'] = 1;
+}
+
 if ( !empty($page['meta_robots']) )
 {
   $template->append('head_elements',
@@ -64,6 +71,10 @@ if ( !empty($page['meta_robots']) )
         .'">'
     );
 }
+if ( !isset($page['meta_robots']['noindex']) )
+{ 
+  $template->assign('meta_ref',1); 
+}
 
 // refresh
 if ( isset( $refresh ) and intval($refresh) >= 0