-require_once('include/contact_widgets.php');
-require_once('include/socgraph.php');
-require_once('include/Contact.php');
-require_once('include/contact_selectors.php');
-require_once('mod/contacts.php');
-
-function dirfind_init(App &$a) {
+/**
+ * @file mod/dirfind.php
+ */
+use Friendica\App;
+use Friendica\Core\Config;
+use Friendica\Core\System;
+use Friendica\Core\Worker;
+use Friendica\Model\GlobalContact;
+use Friendica\Network\Probe;
+use Friendica\Object\Contact;
+use Friendica\Protocol\PortableContact;
+
+require_once 'include/contact_widgets.php';
+require_once 'include/contact_selectors.php';
+require_once 'mod/contacts.php';
+
+function dirfind_init(App $a) {