public static void RunEmptyServerWithLogging() { var logger = new MqttNetEventLogger(); MqttNetConsoleLogger.ForwardToConsole(logger); var mqttFactory = new MqttFactory(logger); var mqttServer = mqttFactory.CreateMqttServer(new MqttServerOptions()); mqttServer.StartAsync().GetAwaiter().GetResult(); Console.WriteLine("Press any key to exit."); Console.ReadLine(); }
public static async Task RunAsync() { var logger = new MqttNetEventLogger(); MqttNetConsoleLogger.ForwardToConsole(logger); var factory = new MqttFactory(logger); var server = factory.CreateMqttServer(new MqttServerOptionsBuilder().Build()); var client = factory.CreateMqttClient(); await server.StartAsync(); var clientOptions = new MqttClientOptionsBuilder().WithTcpServer("localhost").Build(); await client.ConnectAsync(clientOptions); await Task.Delay(Timeout.Infinite); }
public static async Task RunAsync() { try { var logger = new MqttNetEventLogger(); MqttNetConsoleLogger.ForwardToConsole(logger); var factory = new MqttFactory(logger); var client = factory.CreateMqttClient(); var options = new MqttClientOptionsBuilder() .WithTcpServer("localhost") .Build(); Console.WriteLine("BEFORE CONNECT"); await client.ConnectAsync(options); Console.WriteLine("AFTER CONNECT"); Console.WriteLine("BEFORE SUBSCRIBE"); await client.SubscribeAsync("test/topic"); Console.WriteLine("AFTER SUBSCRIBE"); Console.WriteLine("BEFORE PUBLISH"); await client.PublishStringAsync("test/topic", "payload"); Console.WriteLine("AFTER PUBLISH"); await Task.Delay(1000); Console.WriteLine("BEFORE DISCONNECT"); await client.DisconnectAsync(); Console.WriteLine("AFTER DISCONNECT"); Console.WriteLine("FINISHED"); } catch (Exception ex) { Console.WriteLine(ex); } }
public static async Task RunAsync() { try { var options = new MqttServerOptions(); // Extend the timestamp for all messages from clients. // Protect several topics from being subscribed from every client. //var certificate = new X509Certificate(@"C:\certs\test\test.cer", ""); //options.TlsEndpointOptions.Certificate = certificate.Export(X509ContentType.Cert); //options.ConnectionBacklog = 5; //options.DefaultEndpointOptions.IsEnabled = true; //options.TlsEndpointOptions.IsEnabled = false; var mqttServer = new MqttFactory().CreateMqttServer(options); const string Filename = "C:\\MQTT\\RetainedMessages.json"; mqttServer.RetainedMessageChangedAsync += e => { var directory = Path.GetDirectoryName(Filename); if (!Directory.Exists(directory)) { Directory.CreateDirectory(directory); } File.WriteAllText(Filename, JsonConvert.SerializeObject(e.StoredRetainedMessages)); return(Task.FromResult(0)); }; mqttServer.RetainedMessagesClearedAsync += e => { File.Delete(Filename); return(Task.FromResult(0)); }; mqttServer.LoadingRetainedMessageAsync += e => { List <MqttApplicationMessage> retainedMessages; if (File.Exists(Filename)) { var json = File.ReadAllText(Filename); retainedMessages = JsonConvert.DeserializeObject <List <MqttApplicationMessage> >(json); } else { retainedMessages = new List <MqttApplicationMessage>(); } e.LoadedRetainedMessages = retainedMessages; return(Task.FromResult(0)); }; mqttServer.InterceptingPublishAsync += e => { if (MqttTopicFilterComparer.Compare(e.ApplicationMessage.Topic, "/myTopic/WithTimestamp/#") == MqttTopicFilterCompareResult.IsMatch) { // Replace the payload with the timestamp. But also extending a JSON // based payload with the timestamp is a suitable use case. e.ApplicationMessage.Payload = Encoding.UTF8.GetBytes(DateTime.Now.ToString("O")); } if (e.ApplicationMessage.Topic == "not_allowed_topic") { e.ProcessPublish = false; e.CloseConnection = true; } return(PlatformAbstractionLayer.CompletedTask); }; mqttServer.ValidatingConnectionAsync += e => { if (e.ClientId == "SpecialClient") { if (e.Username != "USER" || e.Password != "PASS") { e.ReasonCode = MqttConnectReasonCode.BadUserNameOrPassword; } } return(PlatformAbstractionLayer.CompletedTask); }; mqttServer.InterceptingSubscriptionAsync += e => { if (e.TopicFilter.Topic.StartsWith("admin/foo/bar") && e.ClientId != "theAdmin") { e.Response.ReasonCode = MqttSubscribeReasonCode.ImplementationSpecificError; } if (e.TopicFilter.Topic.StartsWith("the/secret/stuff") && e.ClientId != "Imperator") { e.Response.ReasonCode = MqttSubscribeReasonCode.ImplementationSpecificError; e.CloseConnection = true; } return(PlatformAbstractionLayer.CompletedTask); }; mqttServer.InterceptingPublishAsync += e => { MqttNetConsoleLogger.PrintToConsole( $"'{e.ClientId}' reported '{e.ApplicationMessage.Topic}' > '{Encoding.UTF8.GetString(e.ApplicationMessage.Payload ?? new byte[0])}'", ConsoleColor.Magenta); return(PlatformAbstractionLayer.CompletedTask); }; //options.ApplicationMessageInterceptor = c => //{ // if (c.ApplicationMessage.Payload == null || c.ApplicationMessage.Payload.Length == 0) // { // return; // } // try // { // var content = JObject.Parse(Encoding.UTF8.GetString(c.ApplicationMessage.Payload)); // var timestampProperty = content.Property("timestamp"); // if (timestampProperty != null && timestampProperty.Value.Type == JTokenType.Null) // { // timestampProperty.Value = DateTime.Now.ToString("O"); // c.ApplicationMessage.Payload = Encoding.UTF8.GetBytes(content.ToString()); // } // } // catch (Exception) // { // } //}; mqttServer.ClientConnectedAsync += e => { Console.Write("Client disconnected event fired."); return(PlatformAbstractionLayer.CompletedTask); }; await mqttServer.StartAsync(); Console.WriteLine("Press any key to exit."); Console.ReadLine(); await mqttServer.StopAsync(); } catch (Exception e) { Console.WriteLine(e); } Console.ReadLine(); }
public static async Task RunAsync() { try { var logger = new MqttNetEventLogger(); MqttNetConsoleLogger.ForwardToConsole(logger); var factory = new MqttFactory(logger); var client = factory.CreateMqttClient(); var clientOptions = new MqttClientOptions { ChannelOptions = new MqttClientTcpOptions { Server = "127.0.0.1" } }; client.ApplicationMessageReceivedAsync += e => { Console.WriteLine("### RECEIVED APPLICATION MESSAGE ###"); Console.WriteLine($"+ Topic = {e.ApplicationMessage.Topic}"); Console.WriteLine($"+ Payload = {Encoding.UTF8.GetString(e.ApplicationMessage.Payload)}"); Console.WriteLine($"+ QoS = {e.ApplicationMessage.QualityOfServiceLevel}"); Console.WriteLine($"+ Retain = {e.ApplicationMessage.Retain}"); Console.WriteLine(); return(PlatformAbstractionLayer.CompletedTask); }; client.ConnectedAsync += async e => { Console.WriteLine("### CONNECTED WITH SERVER ###"); await client.SubscribeAsync("#"); Console.WriteLine("### SUBSCRIBED ###"); }; client.DisconnectedAsync += async e => { Console.WriteLine("### DISCONNECTED FROM SERVER ###"); await Task.Delay(TimeSpan.FromSeconds(5)); try { await client.ConnectAsync(clientOptions); } catch { Console.WriteLine("### RECONNECTING FAILED ###"); } }; try { await client.ConnectAsync(clientOptions); } catch (Exception exception) { Console.WriteLine("### CONNECTING FAILED ###" + Environment.NewLine + exception); } Console.WriteLine("### WAITING FOR APPLICATION MESSAGES ###"); while (true) { Console.ReadLine(); await client.SubscribeAsync("test"); var applicationMessage = new MqttApplicationMessageBuilder() .WithTopic("A/B/C") .WithPayload("Hello World") .WithQualityOfServiceLevel(MqttQualityOfServiceLevel.AtLeastOnce) .Build(); await client.PublishAsync(applicationMessage); } } catch (Exception exception) { Console.WriteLine(exception); } }