public async Task <bool> TryConnect(string ip)
{
if (String.IsNullOrWhiteSpace(ip))
{
return(false);
}
try
{
var factory = new MqttFactory();
var builder = new MqttClientOptionsBuilder();
IMqttClientOptions options = builder
.WithClientId("LedTableSimulator")
.WithTcpServer(ip)
.Build();
IMqttClient client = factory.CreateMqttClient();
await client.ConnectAsync(options);
await client.SubscribeAsync("ledtable/simulation/framebuffer");
client.ApplicationMessageReceivedHandler = new MqttApplicationMessageReceivedHandlerDelegate(Handler);
return(client.IsConnected);
}
catch (Exception)
{
return(false);
}
}
static async Task runClient(int clientId, string topic)
{
var clientOptions = options.WithClientId($"dotnet-stress-test-{clientId}").Build();
var mqttClient = factory.CreateMqttClient();
logClientEvents(mqttClient, clientId);
await mqttClient.ConnectAsync(clientOptions);
var sub = await mqttClient.SubscribeAsync(topic, connectionQOS);
if (sub.Any(x => x.ReturnCode == MqttSubscribeReturnCode.Failure))
{
throw new Exception($"client {clientId} subscribing to {topic} failed with QOS {connectionQOS}");
}
var tasks = new List <Task>();
int messageNumber = 0;
while (true)
{
tasks.Add(mqttClient.PublishAsync(topic, $"from {clientId} - {messageNumber}th message"));
messageNumber++;
await Task.Delay(userMessageInterval);
//if (messageNumber % userMessageCountBeforeReset == 0)
//{
// await mqttClient.DisconnectAsync();
// await mqttClient.ConnectAsync(clientOptions);
//}
}
}
/// <summary>
/// Converts the connection options to client options.
/// </summary>
public IMqttClientOptions ToMqttClientOptions()
{
MqttClientOptionsBuilder builder = new MqttClientOptionsBuilder()
.WithTcpServer(Server, Port > 0 ? Port : null);
if (!string.IsNullOrEmpty(ClientID))
{
builder.WithClientId(ClientID);
}
if (!string.IsNullOrEmpty(Username))
{
builder.WithCredentials(Username, Password);
}
if (Timeout > 0)
{
builder.WithCommunicationTimeout(TimeSpan.FromMilliseconds(Timeout));
}
if (ProtocolVersion > MqttProtocolVersion.Unknown)
{
builder.WithProtocolVersion(ProtocolVersion);
}
return(builder.Build());
}
private IMqttClientOptions ToMqttClientOptions()
{
var builder = new MqttClientOptionsBuilder();
builder.WithClientId(ClientId)
.WithCleanSession(false)
.WithTcpServer(HostName, Port)
.WithCredentials(UserName, Password);
if (ShouldUseTls)
{
builder
.WithTls(o =>
{
o.UseTls = true;
o.Certificates = new[]
{
new X509Certificate2(Convert.FromBase64String(CertificatePfxBase64), CertificatePfxPassword)
};
o.AllowUntrustedCertificates = !ShouldValidateBrokerCertificate;
});
}
return(builder.Build());
}
/// <inheritdoc cref="IMqttClientConfigBuilder.WithClientId" />
public IMqttClientConfigBuilder WithClientId(string value)
{
Check.NotEmpty(value, nameof(value));
_builder.WithClientId(value);
return(this);
}
public FedNetClient(ConnectorData MQTTConnectorData, IFedNetLogger newlogSystem = null)
{
_logSystem = newlogSystem;
if (_logSystem == null)
{
_logSystem = new DefaultLogger();
}
_MQTTHostAndPort = MQTTConnectorData.getHasSE();
_ClientConfiguration = new MqttClientOptionsBuilder();
_ClientConfiguration.WithClientId(String.Format("{0}-{1}_{2}", MQTTConnectorData.Username, DateTime.Now.ToString("ffffmmHHss"), FedNetWorker.getRandomString(10)));
if (MQTTConnectorData.useCreditential)
{
_ClientConfiguration.WithCredentials(MQTTConnectorData.Username, MQTTConnectorData.Password);
}
_ClientConfiguration.WithTcpServer(MQTTConnectorData.Host, MQTTConnectorData.Port);
_theGameClient = new MqttFactory().CreateMqttClient();
_theGameClient.UseDisconnectedHandler(e => {
_logSystem.Info("Disconnected (reason : " + (e.AuthenticateResult != null ? e.AuthenticateResult.ResultCode.ToString() : "unknow") + ")");
if (Disconnected != null)
{
Disconnected.Invoke(this, e);
}
if (reconnectOnDisco)
{
Task.Delay(1000).Wait();
Connect();
}
});
_theGameClient.UseConnectedHandler(e => {
_logSystem.Info("Connected !!");
_theGameClient.SubscribeAsync(FedNetConstante.SERVER_TO_CLIENT + FedNetConstante.DEFAULT_TOPIC_SEPARATOR + ClientId + FedNetConstante.DEFAULT_TOPIC_SEPARATOR + FedNetConstante.DEFAULT_TOPIC_JOKER, (MqttQualityOfServiceLevel)FedNetConstante.PRIORITY_SERVER_TO_CLIENT);
_theGameClient.SubscribeAsync(FedNetConstante.SERVER_BROADCAST + FedNetConstante.DEFAULT_TOPIC_SEPARATOR + FedNetConstante.DEFAULT_TOPIC_JOKER, (MqttQualityOfServiceLevel)FedNetConstante.PRIORITY_SERVER_BROADCAST);
if (Connected != null)
{
Connected.Invoke(this, e);
}
});
_theGameClient.UseApplicationMessageReceivedHandler(e => {
if (e.ClientId == "" || e.ClientId == " " || e.ClientId == null)
{
return;
}
if (MessageReceived != null)
{
MessageReceived.Invoke(this, Message.getMessage(e.ApplicationMessage));
}
});
reconnectOnDisco = true;
_logSystem.Info("Client initialized !");
}
public async Task MQTTClientConnect(string URI)
{
MqttClientOptionsBuilder MQOptions = new MqttClientOptionsBuilder();
MQOptions.WithClientId(MQTT_CLIENT_ID);
MQOptions.WithWebSocketServer(URI);
MQOptions.WithProtocolVersion(MQTTnet.Formatter.MqttProtocolVersion.V311);
MQOptions.WithTls();
await mqClient.ConnectAsync(MQOptions.Build()).ConfigureAwait(false);
}
public MQTTClient()
{
var mqttClient = new MqttFactory().CreateMqttClient();
var optionBuilder = new MqttClientOptionsBuilder();
optionBuilder
.WithClientId("c001")
.WithTcpServer(opts =>
{
opts.Server = "127.0.0.1";
opts.Port = 108;
})
.WithCredentials("u001", "p001")
.WithCleanSession(true);
var options = optionBuilder.Build();
mqttClient.ConnectAsync(options, CancellationToken.None).Wait();
var recieveHander = new MsgRecieveHandler();
mqttClient.ApplicationMessageReceivedHandler = recieveHander;
var topicBuilder = new TopicFilterBuilder();
topicBuilder.WithTopic("家/客厅/空调/#")
.WithAtMostOnceQoS();
var topicHome = topicBuilder.Build();
var subscribOptionBuilder = new MqttClientSubscribeOptionsBuilder();
subscribOptionBuilder.WithTopicFilter(topicHome);
var subOpt = subscribOptionBuilder.Build();
mqttClient.SubscribeAsync(subOpt, CancellationToken.None).Wait();
var appMsg = new MqttApplicationMessage();
appMsg.Topic = "家/客厅/空调/开关";
appMsg.Payload = Encoding.UTF8.GetBytes("我来了~");
appMsg.QualityOfServiceLevel = MqttQualityOfServiceLevel.AtMostOnce;
appMsg.Retain = false;
mqttClient.PublishAsync(appMsg, CancellationToken.None).Wait();
//var appMsg = new MqttApplicationMessage("家/客厅/空调/开关",
// Encoding.UTF8.GetBytes("消息内容"),
// MqttQualityOfServiceLevel.AtMostOnce, false);
}
public static IServiceCollection AddMqttServices <TMqttSettings>(this IServiceCollection services, IConfiguration mqttConfiguration)
where TMqttSettings : MqttSettings, new()
{
services.AddOptions <TMqttSettings>()
.Bind(mqttConfiguration)
.ValidateDataAnnotations();
services.AddSingleton(sp =>
{
var mqttSettings = sp.GetRequiredService <IOptions <TMqttSettings> >().Value;
var mqttClientOptionsBuilder = new MqttClientOptionsBuilder()
.WithTcpServer(mqttSettings.Host, mqttSettings.Port)
.WithProtocolVersion(mqttSettings.MqttProtocolVersion ?? MqttProtocolVersion.V500);
if (mqttSettings.ClientId != null)
{
mqttClientOptionsBuilder = mqttClientOptionsBuilder.WithClientId(mqttSettings.ClientId);
}
if (mqttSettings.CommunicationTimeout.HasValue)
{
mqttClientOptionsBuilder = mqttClientOptionsBuilder.WithCommunicationTimeout(mqttSettings.CommunicationTimeout.Value);
}
mqttClientOptionsBuilder = mqttSettings.KeepAliveInterval.HasValue ?
mqttClientOptionsBuilder.WithKeepAlivePeriod(mqttSettings.KeepAliveInterval.Value) :
mqttClientOptionsBuilder.WithNoKeepAlive();
var lastWillAndTestamentMessage = mqttSettings.GetLastWillAndTestamentApplicationMessage();
if (lastWillAndTestamentMessage != null)
{
mqttClientOptionsBuilder = mqttClientOptionsBuilder.WithWillMessage(lastWillAndTestamentMessage);
}
return(mqttClientOptionsBuilder.Build());
});
services.AddSingleton <IMqttFactory, MqttFactory>();
services.AddTransient(sp =>
{
var factory = sp.GetRequiredService <IMqttFactory>();
var client = factory.CreateMqttClient();
return(client);
});
return(services);
}
private MqttClientOptionsBuilder ConfigureClientOptions(MqttClientOptionsBuilder builder, MqttOptions options)
{
builder
.WithClientId(options.ClientName)
.WithTcpServer(options.Host, options.Port)
.WithWillMessage(GetLastWill());
if (options.UseTls)
{
builder = builder.WithTls();
}
if (options.HasCredentials)
{
builder = builder.WithCredentials(options.Username, options.Password);
}
return(builder);
}
public void changeClientConfig(ConnectorData MQTTConnectorData)
{
_MQTTHostAndPort = MQTTConnectorData.getHasSE();
_ClientConfiguration = new MqttClientOptionsBuilder();
_ClientConfiguration.WithClientId(String.Format("{0}-{1}_{2}", MQTTConnectorData.Username, DateTime.Now.ToString("ffffmmHHss"), FedNetWorker.getRandomString(10)));
if (MQTTConnectorData.useCreditential)
{
_ClientConfiguration.WithCredentials(MQTTConnectorData.Username, MQTTConnectorData.Password);
}
if (!MQTTConnectorData.useCreditential)
{
_ClientConfiguration.WithCredentials(MQTTConnectorData.Username, "");
}
_ClientConfiguration.WithTcpServer(MQTTConnectorData.Host, MQTTConnectorData.Port);
_logSystem.Info("MQTT Client reinitialized !");
}
public virtual ManagedMqttClientOptions GetMqttClientOptions()
{
var clientOptions = new MqttClientOptionsBuilder();
if (MqttBrokerSettings.IsEncryptedCommunication)
{
clientOptions.WithTls();
}
var options = new ManagedMqttClientOptionsBuilder()
.WithAutoReconnectDelay(TimeSpan.FromSeconds(5))
.WithClientOptions(clientOptions
.WithClientId(MqttClientId)
.WithTcpServer(MqttBrokerSettings.BrokerAddress, MqttBrokerSettings.Port)
.WithCredentials(EboEwsSettings.UserName, EboEwsSettings.Password).Build())
.Build();
return(options);
}
private ManagedMqttClientOptions GetMqttClientOptions()
{
var clientOptions = new MqttClientOptionsBuilder();
if (_moduleConfiguration.UseSecureCommunication)
{
clientOptions.WithTls();
}
var options = new ManagedMqttClientOptionsBuilder()
.WithAutoReconnectDelay(TimeSpan.FromSeconds(5))
.WithClientOptions(clientOptions
.WithClientId(_moduleConfiguration.MqttClientId)
.WithTcpServer(_moduleConfiguration.MqttBrokerAddress, _moduleConfiguration.MqttBrokerPort)
.WithCredentials(_moduleConfiguration.MqttBrokerUserName, _moduleConfiguration.MqttBrokerPassword).Build())
.Build();
return(options);
}
public async Task Connect()
{
var certificate = new X509Certificate("C:\\Users\\Andre\\Desktop\\ESAMI\\Broker_Anto\\Resource\\certificate.pfx", "Guido2018", X509KeyStorageFlags.Exportable);
//var certificate = new X509Certificate("C:\\Users\\Andre\\Desktop\\ESAMI\\Broker_Anto\\Resource\\esame.pfx", "Guido2018", X509KeyStorageFlags.Exportable); ///idilio
var caRoot = X509Certificate2.CreateFromSignedFile("C:\\Users\\Andre\\Desktop\\ESAMI\\Broker_Anto\\Resource\\CAroot.crt");
MqttClientOptionsBuilder optionsBuilder = new MqttClientOptionsBuilder();
var fact = new MqttFactory();
client = fact.CreateMqttClient();
client.ApplicationMessageReceived += Client_ApplicationMessageReceived;
client.Connected += Client_Connected;
optionsBuilder
.WithClientId("pc-broker")
.WithTcpServer(IoTEndPoint, 8883)
.WithTls(true, true, true, certificate.Export(X509ContentType.Pfx), caRoot.Export(X509ContentType.Cert))
.WithCleanSession()
.WithProtocolVersion(MQTTnet.Serializer.MqttProtocolVersion.V311)
.WithKeepAlivePeriod(new TimeSpan(0, 0, 5));
try
{
await client.ConnectAsync(optionsBuilder.Build());
}
catch (Exception e)
{
w.Dispatcher.Invoke(v, "impossibile connect " + e.Message.ToString());
}
try
{
await client.SubscribeAsync("aws/misure");
}
catch (Exception e)
{
w.Dispatcher.Invoke(v, "impossibile subscribe " + e.Message.ToString());
}
while (!client.IsConnected)
{
}
}
public void Connect(out string errMsg)
{
errMsg = "";
if (this.mqttClient != null && this.mqttClient.IsConnected)
{
return;
}
if (this.param == null)
{
errMsg = "连接MQTT服务端失败,没有指明服务参数";
return;
}
try
{
mqttClient = new MqttFactory().CreateMqttClient() as MqttClient;
this.OnloadEvents();
MqttClientOptionsBuilder optionsBuilder = new MqttClientOptionsBuilder();
optionsBuilder.WithCommunicationTimeout(TimeSpan.FromSeconds(10));// 只连接等待10秒
optionsBuilder.WithTcpServer(this.param.ip, this.param.port);
optionsBuilder.WithCredentials(this.param.userName, this.param.password);
optionsBuilder.WithClientId(this.param.clientID);
optionsBuilder.WithCleanSession(true);// 临时会话
Task task = mqttClient.ConnectAsync(optionsBuilder.Build());
task.Wait(5000);
if (!this.IsConnected)
{
errMsg = "连接MQTT服务器失败";
}
}
catch (Exception ex)
{
errMsg = "连接到MQTT服务器失败！" + ex.Message;
}
}
private async Task <IManagedMqttClient> ConnectAsync(string clientId, string mqttServerAddress, int port, string username, string password, bool useTLS, CancellationToken token)
{
var mqttClientFactory = new MqttFactory();
var builder = new MqttClientOptionsBuilder();
builder.WithTcpServer(mqttServerAddress, port);
if (!string.IsNullOrWhiteSpace(clientId))
{
builder.WithClientId(clientId);
}
if (!string.IsNullOrEmpty(username) && !string.IsNullOrEmpty(password))
{
builder.WithCredentials(username, password);
}
if (useTLS)
{
builder.WithTls();
}
var options = builder.Build();
var managedOptions = new ManagedMqttClientOptionsBuilder()
.WithAutoReconnectDelay(TimeSpan.FromSeconds(5))
.WithClientOptions(options)
.Build();
//todo add a logger provided to the function CreateMqttClient
var client = mqttClientFactory.CreateManagedMqttClient(new MqttNetLogger(logger));
await client.StartAsync(managedOptions);
await client.WaitForConnectAsync(2000, token);
return(client);
}
private IMqttClientOptions GetConnectOptions()
{
var builder = new MqttClientOptionsBuilder()
.WithTcpServer(Configuration.Host, Configuration.Port)
.WithProtocolVersion(MqttProtocolVersion.V311);
if (!string.IsNullOrWhiteSpace(Configuration.Session.ClientId))
{
// use a session but expire the session after 6h
// we accept short outages less than 6h
if (Configuration.Session.Clean)
{
Console.WriteLine("Starting with a clean mqtt session ..");
}
builder
.WithClientId(Configuration.Session.ClientId)
.WithCleanSession(Configuration.Session.Clean)
.WithSessionExpiryInterval(60 * 60 * 6);
}
if (Configuration.Auth.Enable)
{
builder.WithCredentials(Configuration.Auth.Username, Configuration.Auth.Password);
}
if (Configuration.Ssl.Enable)
{
builder.WithTls(parameters =>
{
parameters.UseTls = true;
parameters.AllowUntrustedCertificates = Configuration.Ssl.AllowUntrustedCertificates;
});
}
return(builder.Build());
}
private async void Connect_Click(object sender, EventArgs e)
{
if (mqttClient == null)
{
mqttClient = new MqttFactory().CreateMqttClient();
mqttClient.UseApplicationMessageReceivedHandler(new
Action <MqttApplicationMessageReceivedEventArgs>(MqttClient_ApplicationMessageReceived));
mqttClient.UseDisconnectedHandler(new
Action <MqttClientDisconnectedEventArgs>(MqttClient_Disconnected));
mqttClient.UseConnectedHandler(new
Action <MqttClientConnectedEventArgs>(MqttClient_Connected));
}
if (mqttClient.IsConnected)
{
return;
}
status.Text = "Connecting...";
var clientOptionsBuilder = new MqttClientOptionsBuilder();
clientOptionsBuilder.WithProtocolVersion((MqttProtocolVersion)version.SelectedValue);
if (!string.IsNullOrWhiteSpace(username.Text))
{
if (!string.IsNullOrWhiteSpace(password.Text))
{
clientOptionsBuilder.WithCredentials(username.Text, password.Text);
}
else
{
clientOptionsBuilder.WithCredentials(username.Text);
}
}
if (!string.IsNullOrWhiteSpace(clientId.Text))
{
clientOptionsBuilder.WithClientId(clientId.Text);
}
if (useTls.Checked)
{
clientOptionsBuilder.WithTls();
}
if (useWebSocket.Checked)
{
clientOptionsBuilder.WithWebSocketServer(host.Text);
}
else
{
clientOptionsBuilder.WithTcpServer(host.Text, int.Parse(port.Text));
}
if (cleanSession.Checked)
{
clientOptionsBuilder.WithCleanSession(true);
}
else
{
clientOptionsBuilder.WithCleanSession(false);
}
if (setWill.Checked && !string.IsNullOrWhiteSpace(input.TextValue))
{
clientOptionsBuilder.WithWillMessage(BuildMessage());
}
try
{
await mqttClient.ConnectAsync(clientOptionsBuilder.Build());
clientId.Text = mqttClient.Options.ClientId;
}
catch (Exception ex)
{
MessageBox.Show(this, ex.Message);
}
}
public static MqttStatus Connect(string url, MqttConfig config)
{
Guid key = Guid.NewGuid();
try
{
#if DEBUG
IMqttClient client = new MqttFactory().CreateMqttClient(new ConsoleLogger());
#else
IMqttClient client = new MqttFactory().CreateMqttClient();
#endif
var b = new MqttClientOptionsBuilder()
.WithTcpServer(url, config.Port)
.WithKeepAlivePeriod(TimeSpan.FromSeconds(config.KeepAlive))
.WithMaximumPacketSize(Convert.ToUInt32(config.BufferSize))
.WithCommunicationTimeout(TimeSpan.FromSeconds(config.ConnectionTimeout))
.WithCleanSession(config.CleanSession);
if (config.SessionExpiryInterval > 0)
{
b = b.WithSessionExpiryInterval((uint)config.SessionExpiryInterval);
}
if (!string.IsNullOrEmpty(config.ClientId))
{
b = b.WithClientId(config.ClientId);
}
if (!config.SSLConnection)
{
b = b.WithCredentials(config.UserName, config.Password);
}
switch (config.ProtocolVersion)
{
case 310:
b = b.WithProtocolVersion(MqttProtocolVersion.V310);
break;
case 311:
b = b.WithProtocolVersion(MqttProtocolVersion.V311);
break;
case 500:
b = b.WithProtocolVersion(MqttProtocolVersion.V500);
break;
default:
throw new InvalidDataException("Invalid protocol versions. Valid versions are 310, 311 or 500");
}
if (config.SSLConnection)
{
string base64CACert = RSAKeys.GetPlainBase64(config.CAcertificate);
X509Certificate2 caCert = new X509Certificate2(Convert.FromBase64String(base64CACert));
byte[] caBytes = caCert.Export(X509ContentType.Cert);
string base64Client = RSAKeys.GetPlainBase64(config.ClientCertificate);
X509Certificate2 cliCert = new X509Certificate2(Convert.FromBase64String(base64Client), config.ClientCerificatePassphrase);
cliCert = cliCert.CopyWithPrivateKey(RSAKeys.ImportPrivateKey(config.PrivateKey, new PasswordFinder(config.ClientCerificatePassphrase)));
byte[] cliBytes = cliCert.Export(X509ContentType.Pfx);
try
{
var tls = new MqttClientOptionsBuilderTlsParameters
{
SslProtocol = System.Security.Authentication.SslProtocols.Tls12 | System.Security.Authentication.SslProtocols.Tls11 | System.Security.Authentication.SslProtocols.Tls,
UseTls = true,
AllowUntrustedCertificates = true,
IgnoreCertificateChainErrors = true,
IgnoreCertificateRevocationErrors = true,
Certificates = new List <X509Certificate>()
{
caCert, cliCert
},
//CertificateValidationHandler = context => true
CertificateValidationCallback = (certificate, chain, sslError, opts) => true
};
b = b.WithTls(tls);
}
finally
{
caCert.Dispose();
cliCert.Dispose();
}
}
client.UseDisconnectedHandler(async e =>
{
try
{
if (Connections.ContainsKey(key))
{
await Task.Delay(TimeSpan.FromSeconds(config.AutoReconnectDelay));
MqttClientAuthenticateResult reconnectResult = await client.ConnectAsync(b.Build());
SubscribePreviousConnection(key, reconnectResult);
}
}
catch
{
Connections.Remove(key);
client.Dispose();
}
});
MqttClientAuthenticateResult result = client.ConnectAsync(b.Build()).GetAwaiter().GetResult();
MqttClient mqtt = new MqttClient(client, config);
Connections[key] = mqtt;
SubscribePreviousConnection(key, result);
}
catch (Exception ex)
{
return(MqttStatus.Fail(Guid.Empty, ex));
}
return(MqttStatus.Success(key));
}
private void _connect()
{
try
{
if (_mqttClient != null && _mqttClient.IsConnected)
{
return;
}
if (Options == null)
{
return;
}
LastWillMessage lastWillMsg = new LastWillMessage();
string payload = JsonConvert.SerializeObject(lastWillMsg);
MqttApplicationMessage msg = new MqttApplicationMessage()
{
Payload = Encoding.UTF8.GetBytes(payload),
QualityOfServiceLevel = MqttQualityOfServiceLevel.AtLeastOnce,
Retain = true,
Topic = string.Format(MQTTTopic.ScadaConnTopic, Options.ScadaId)
};
string clientId = "EdgeAgent_" + Guid.NewGuid().ToString("N");
var ob = new MqttClientOptionsBuilder();
ob.WithClientId(clientId)
.WithCredentials(Options.MQTT.Username, Options.MQTT.Password)
.WithCleanSession()
.WithWillMessage(msg);
switch (Options.MQTT.ProtocolType)
{
case Protocol.TCP:
ob.WithTcpServer(Options.MQTT.HostName, Options.MQTT.Port);
break;
case Protocol.WebSocket:
ob.WithWebSocketServer(Options.MQTT.HostName);
break;
default:
ob.WithTcpServer(Options.MQTT.HostName, Options.MQTT.Port);
break;
}
if (Options.UseSecure)
{
ob.WithTls();
}
var mob = new ManagedMqttClientOptionsBuilder()
.WithAutoReconnectDelay(TimeSpan.FromMilliseconds(Options.ReconnectInterval))
.WithClientOptions(ob.Build())
.Build();
_mqttClient.StartAsync(mob);
}
catch (Exception ex)
{
//_logger.Error( ex.ToString() );
}
}
private MqttClientOptionsBuilder CreateOptionsBuilder(ClientCredentials credentials = null)
{
MqttClientOptionsBuilder clientOptionsBuilder = new MqttClientOptionsBuilder();
MqttClientOptionsBuilderTlsParameters tlsParameters = null;
string hostName = Settings.Client.BrokerHostname;
int portNum = Settings.Client.BrokerPort;
//check if broker endpoint for local connections is defined in environment, only possible for connections without credentials
if (credentials == null)
{
string brokerEndpoint = Environment.GetEnvironmentVariable("GE_BROKER_CONNECTION_ENDPOINT");
if (!string.IsNullOrEmpty(brokerEndpoint))
{
string[] tokens = brokerEndpoint.Split(':');
if (tokens.Length == 2)
{
hostName = tokens[0];
portNum = Convert.ToInt32(tokens[1], CultureInfo.InvariantCulture);
}
}
}
clientOptionsBuilder.WithCleanSession();
clientOptionsBuilder.WithClientId(ClientId);
if (portNum == 443)
{
clientOptionsBuilder.WithWebSocketServer(hostName);
}
else
{
clientOptionsBuilder.WithTcpServer(hostName, portNum);
}
if (credentials != null)
{
if (credentials.HasCertificates())
{
tlsParameters = new MqttClientOptionsBuilderTlsParameters
{
UseTls = true,
AllowUntrustedCertificates = Settings.Client.AllowUntrustedCertificates,
IgnoreCertificateChainErrors = Settings.Client.IgnoreCertificateChainErrors,
IgnoreCertificateRevocationErrors = Settings.Client.IgnoreCertificateRevocationErrors,
CertificateValidationHandler = CertificateValidationCallback,
Certificates = credentials.ClientCertAndCaChain,
SslProtocol = SslProtocols.Tls12
};
clientOptionsBuilder.WithTls(tlsParameters);
}
if (credentials.IsUserNameAndPasswordRequired())
{
credentials.GetUserNameAndPassword(ClientId, out string username, out string password);
clientOptionsBuilder.WithCredentials(username, password);
}
}
// settings for connection timeout and MQTT kepp alive interval, given in seconds
// (defaults in MQTTnet stack are CommunicationTimeout = 10 sec and KeepAlivePeriod = 15 sec.,
// see in MqttClientOptions.cs of MQTTnet)
clientOptionsBuilder.WithCommunicationTimeout(new TimeSpan(0, 0, Settings.Client.CommunicationTimeout));
clientOptionsBuilder.WithKeepAlivePeriod(new TimeSpan(0, 0, Settings.Client.MqttKeepAlivePeriod));
return(clientOptionsBuilder);
}
public void Connect()
{
try
{
bool con = false;
if (Certificates.IsCertificateEnabled())
{
Certificates.GetCertificate("ABB Ability Edge");
}
MqttFactory _mqttFactory = new MqttFactory(_clientLogger);
var certificate = GetCert("ABB Ability Edge");
if (certificate == null)
{
certificate = new X509Certificate2(File.ReadAllBytes(this.certTxt.Text));
}
this.exMsg.Content = "";
IMqttClientOptions options;
MqttClientOptionsBuilder builderObj;
builderObj = new MqttClientOptionsBuilder()
.WithClientId(Guid.NewGuid().ToString())
.WithCleanSession();
if (this.layerCbox.SelectedItem.ToString().ToLower().Contains("tcp"))
{
builderObj = builderObj
.WithClientId(Guid.NewGuid().ToString())
.WithTcpServer(this.ipTxt.Text, int.Parse(this.portTxt.Text))
.WithCleanSession();
}
else
{
builderObj = builderObj
.WithClientId(Guid.NewGuid().ToString())
.WithWebSocketServer(this.ipTxt.Text)
.WithCleanSession().WithRequestProblemInformation(true);
}
if (!withoutCert)
{
builderObj = builderObj
.WithTls(new MqttClientOptionsBuilderTlsParameters()
{
AllowUntrustedCertificates = true,
UseTls = true,
Certificates = new List <byte[]> {
new X509Certificate2(certificate).Export(X509ContentType.Cert)
},
CertificateValidationCallback = delegate { return(true); },
IgnoreCertificateChainErrors = false,
IgnoreCertificateRevocationErrors = false
});
}
options = builderObj.Build();
client = _mqttFactory.CreateMqttClient();
var message = new MqttApplicationMessageBuilder()
.WithTopic(this.topicTxt.Text)
.WithPayload(this.msgTxt.Text + DateTime.Now.ToString())
.WithExactlyOnceQoS()
.WithRetainFlag()
.Build();
var result = client.ConnectAsync(options);
if (result != null)
{
MessageBox.Show(result.ToString());
}
client.UseConnectedHandler(async e =>
{
MessageBox.Show("Connected");
//this.connection_status_lbl.Content = "Connected";
con = true;
await client.PublishAsync(message);
MessageBox.Show("Published");
});
this.connection_status_lbl.Content = "";
}
catch (Exception ex)
{
MessageBox.Show(ex.Message);
this.exMsg.Content = ex.StackTrace + Environment.NewLine;
}
}
