override protected int _execute(Communicate request) { using (var db = new UserContext()) { User user = request.user; if (user != null) { string username = user.username; string password = user.password; var items = (from b in db.Users orderby b.username where b.username == username where b.password == password select b); int count = items.Count(); // If there is such user: if (count == 1) { // Set session variable: Session session = Session.getInstance(); session.set(request.sessID, "user", "1"); session.set(request.sessID, "username", items.FirstOrDefault().username); if (request.sender != null) { session.set(request.sessID, "ip", request.sender.ToString()); } // Setting response: _response.header = "authorized"; _response.message = new Message { content = "Corretly logged user" }; return(Command.OK); } else { _response.header = "error"; _response.message = new Message { content = "There is no such a user. Your username or password is wrong" }; return(Command.ERROR); } } } // Communicate error occurrance: _response.header = "error"; _response.message = new Message { content = "A proplem occurred while perform authorization" }; return(Command.ERROR); }