upstream fixes

include/security.php

@@ -440,3 +440,24 @@ function check_form_security_token_ForbiddenOnErr($typename = '', $formname = 'f
 		killme();
 	}
 }
+
+// Returns an array of group id's this contact is a member of.
+// This array will only contain group id's related to the uid of this
+// DFRN contact. They are *not* neccessarily unique across the entire site. 
+
+
+if(! function_exists('init_groups_visitor')) {
+function init_groups_visitor($contact_id) {
+	$groups = array();
+	$r = q("SELECT `gid` FROM `group_member` 
+		WHERE `contact-id` = %d ",
+		intval($contact_id)
+	);
+	if(count($r)) {
+		foreach($r as $rr)
+			$groups[] = $rr['gid'];
+	}
+	return $groups;
+}}
+
+