send an exception when a session has timed out on the server side

1 files changed, 5 insertions, 2 deletions

diff --git a/backend/php/src/index.php b/backend/php/src/index.php
index eb3d75a..35752f4 100644
--- a/backend/php/src/index.php
+++ b/backend/php/src/index.php
@@ -716,18 +716,21 @@ error_log("message");
                                         $result["result"] = "done";
                                         
                                 //=============================================================
                                 } else if ($message == "echo") {
                                         $result["result"] = $parameters;
                                 }
                                 
                                 //=============================================================
-                        } else {
+                        } else if (isset($_SESSION['K'])) {
                                 $result["error"] = "Wrong shared secret!";
+                        } else {
+                            $result["result"] = "EXCEPTION";
+                            $result["message"] = "Trying to communicate without an active connection";
                         }
                         break;
 
                 case "logout":
 error_log("logout");
                         session_destroy();
                         break;
 
@@ -736,9 +739,9 @@ error_log("default");
                         $result["result"] = $parameters;
                         break;
         }
 
         session_write_close();
         
         echo(json_encode($result));
 error_log("result: ".json_encode($result));
-?>
\ No newline at end of file
+?>