Fix: front/ check (#86)

* Fix: front/ check

* Apply suggestions from code review

Co-authored-by: Stanislas <[email protected]>

---------

Co-authored-by: Stanislas <[email protected]>

Author: Rom1-B

front/config.form.php

@@ -30,6 +30,7 @@
 
 include('../../../inc/includes.php');
 
+Session::checkRight('treeview', UPDATE);
 
 $config = new PluginTreeviewConfig();
 if (isset($_POST['update'])) {

front/preference.form.php

@@ -30,6 +30,8 @@
 
 include('../../../inc/includes.php');
 
+Session::checkLoginUser();
+
 $pref = new PluginTreeviewPreference();
 
 //Save user preferences

front/preference.php

@@ -30,6 +30,8 @@
 
 include('../../../inc/includes.php');
 
+Session::checkLoginUser();
+
 if ($_SESSION['glpiactiveprofile']['interface'] == 'central') {
     Html::header('TITRE', $_SERVER['PHP_SELF'], 'plugins', 'pluginexampleexample', '');
 } else {