diff --git a/public/index.php b/public/index.php
index c43d927..e1d7d17 100644
--- a/public/index.php
+++ b/public/index.php
@@ -22,4 +22,25 @@ switch ($path) {
         break;
 }
 
+function ReturnJsonResponse($data, $status = 200) {
+    http_response_code($status);
+    header('Content-Type: application/json');
+    header('Cache-Control: no-cache, no-store, must-revalidate');
+    echo json_encode($data);
+    exit;
+}
+
+function request_access() {
+    $data = ['request access' => 'request not allowed'];
+    ReturnJsonResponse($data, 403);
+}
+
+function deny_access() {
+    $data = ['deny access'=>'emergency user request revoked'];
+    ReturnJsonResponse($data);
+}
+
+function user_interface() {
+    print('<!DOCTYPE html><html><head><title>DigiErbe Tresor</title></head><body><h1>Willkommen beim DigiErbe Tresor</h1></body></html>');
+}
 ?>
\ No newline at end of file
