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
@@ -708,37 +708,40 @@ error_log("message");
 						$currentOtp = $otpList[0];
 						$currentOtp->data = $otpData;
 						$currentOtp->Save();
 					}
 
 					$user->Save();
 
 					$result["lock"] = $user->lock;
 					$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;
 
 		default:
 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
+?>