-use Friendica\Database\DBM;
-
-require_once('include/salmon.php');
-require_once('include/ostatus.php');
-require_once('include/crypto.php');
-require_once('include/items.php');
-require_once('include/follow.php');
-
-function salmon_return($val) {
+use Friendica\Core\Protocol;
+use Friendica\Core\System;
+use Friendica\Database\DBA;
+use Friendica\Model\Contact;
+use Friendica\Protocol\OStatus;
+use Friendica\Protocol\Salmon;
+use Friendica\Util\Crypto;
+use Friendica\Util\Strings;