Security fix: unauthorized access (#10091)

* Security fix: unauthorized access
Affects nginx users:
Moved php files outside of public html directory (Apache was protected by .htaccess)

Affects all users:
Some files did not check for authentication and could disclose some info.
Better checks before including files from user input

* git mv html/includes/ includes/html
git mv html/pages/ includes/html/

includes/html/forms/save-host-dependency.inc.php

@@ -0,0 +1,49 @@
+<?php
+
+/*
+ * LibreNMS
+ *
+ * Copyright (c) 2017 Aldemir Akpinar <https://github.com/aldemira/>
+ *
+ * This program is free software: you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation, either version 3 of the License, or (at your
+ * option) any later version.  Please see LICENSE.txt at the top level of
+ * the source code distribution for details.
+ */
+
+use LibreNMS\Authentication\LegacyAuth;
+
+if (!LegacyAuth::user()->hasGlobalAdmin()) {
+    $status = ['status' => 1, 'message' => 'You need to be admin'];
+} else {
+    $parent_ids = (array)$_POST['parent_ids'];
+    $device_ids = (array)$_POST['device_ids'];
+
+    foreach ($parent_ids as $parent) {
+        if (!is_numeric($parent)) {
+            $status = ['status' => 1, 'message' => 'Parent ID must be an integer!'];
+            break;
+        }
+    }
+
+    if (count($parent_ids) > 1 && in_array('0', $parent_ids)) {
+        $status = ['status' => 1, 'message' => 'Multiple parents cannot contain None-Parent!'];
+    }
+
+    foreach ($device_ids as $device_id) {
+        if (!is_numeric($device_id)) {
+            $status = ['status' => 1, 'message' => 'Device ID must be an integer!'];
+            break;
+        } elseif (in_array($device_id, $parent_ids)) {
+            $status = ['status' => 1, 'message' => 'A device cannot depend itself'];
+            break;
+        }
+
+        \App\Models\Device::find($device_id)->parents()->sync($parent_ids);
+
+        $status = array('status' => 0, 'message' => 'Device dependencies have been saved');
+    }
+}
+header('Content-Type: application/json');
+echo json_encode($status);