private static IMqttClientOptions MakeMqttOptions(string certDir, MqttConfig config, string suffix)
{
string clientID = $"{config.ClientIDPrefix}_{suffix}_{TheGuid}";
var builder = new MqttClientOptionsBuilder()
.WithClientId(clientID)
.WithTcpServer(config.Endpoint);
if (config.CertFileCA != "")
{
var caCert = X509Certificate.CreateFromCertFile(Path.Combine(certDir, config.CertFileCA));
var clientCert = new X509Certificate2(Path.Combine(certDir, config.CertFileClient), "");
builder = builder
.WithTls(new MqttClientOptionsBuilderTlsParameters()
{
UseTls = true,
SslProtocol = System.Security.Authentication.SslProtocols.Tls12,
Certificates = new List <X509Certificate>()
{
clientCert,
caCert
},
IgnoreCertificateRevocationErrors = config.IgnoreCertificateRevocationErrors,
IgnoreCertificateChainErrors = config.IgnoreCertificateChainErrors,
AllowUntrustedCertificates = config.AllowUntrustedCertificates,
});
}
return(builder
.WithCleanSession()
.Build());
}
private IMqttClientOptions CreateMqttClientOptions()
{
var options = new MqttClientOptionsBuilder()
.WithClientId(_settings.ClientId)
.WithCredentials(_settings.Username, _settings.Password);
if (_settings.TcpEndPoint.Enabled)
{
if (_settings.TcpEndPoint.Port > 0)
{
options.WithTcpServer(_settings.TcpEndPoint.Server, _settings.TcpEndPoint.Port);
}
else
{
options.WithTcpServer(_settings.TcpEndPoint.Server);
}
}
else
{
options.WithTcpServer("localhost");
}
if (_settings.CommunicationTimeout > 0)
{
options.WithCommunicationTimeout(TimeSpan.FromSeconds(_settings.CommunicationTimeout));
}
if (_settings.EnableCleanSessions)
{
options.WithCleanSession();
}
return(options.Build());
}
/// <summary>
/// 连接mqtt服务器
/// </summary>
public static void Connect()
{
if (mqttClient == null)
{
return;
}
if (mqttClient.IsConnected)
{
Log.Info(moudle, "已连接，无需再次连接");
return;
}
//var options = new MqttClientOptionsBuilder()
// .WithTcpServer("lbsmqtt.airm2m.com", 1884)
// .Build();
//Task.Run(() =>
//{
// try
// {
// mqttClient.ConnectAsync(options, CancellationToken.None).Wait();
// Log.Info("mqtt", $"=======连上了");
// }
// catch (Exception e)
// {
// Log.Info("mqtt", $"=======炸了：{e}");
// }
//});
Task.Run(async() =>
{
try
{
var op = new MqttClientOptionsBuilder()
.WithClientId(Utils.Setting.ClientID)
.WithTcpServer(Utils.Setting.MqttBroker, Utils.Setting.MqttPort)
.WithCredentials(Utils.Setting.MqttUser, Utils.Setting.MqttPassword)
.WithKeepAlivePeriod(new TimeSpan(0, 0, Utils.Setting.KeepAlive));
if (Utils.Setting.MqttTLS)
{
op.WithTls();
}
var options = op.WithCleanSession().Build();
await mqttClient.ConnectAsync(options, CancellationToken.None);
}
catch (Exception e)
{
Log.Warn(moudle, $"服务器连接失败：{Utils.Setting.MqttBroker}:{Utils.Setting.MqttPort}" +
$",{Utils.Setting.MqttUser},{Utils.Setting.MqttPassword},{Utils.Setting.MqttTLS}");
Log.Warn(moudle, $"原因：{e.Message}");
}
});
}
private void ConnectButton_Click(object sender, RoutedEventArgs e)
{
if (mqttClient.IsConnected)
{
Task.Run(async() =>
{
try
{
await mqttClient.DisconnectAsync();
}
catch { }
});
}
else
{
MqttIsConnected = true;
var temp = new MqttClientOptionsBuilder()
.WithClientId(Tools.Global.setting.mqttClientID)
.WithTcpServer(Tools.Global.setting.mqttServer, Tools.Global.setting.mqttPort)
.WithCredentials(Tools.Global.setting.mqttUser, Tools.Global.setting.mqttPassword)
.WithKeepAlivePeriod(new TimeSpan(0, 0, Tools.Global.setting.mqttKeepAlive));
if (Tools.Global.setting.mqttTLS)
{
temp.WithTls();
}
if (Tools.Global.setting.mqttCleanSession)
{
temp.WithCleanSession();
}
var options = temp.Build();
Task.Run(async() =>
{
try
{
await mqttClient.ConnectAsync(options, CancellationToken.None);
}
catch { }
});
}
}
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;
}
}
/// <inheritdoc cref="IMqttClientConfigBuilder.RequestCleanSession" />
public IMqttClientConfigBuilder RequestCleanSession()
{
_builder.WithCleanSession();
return(this);
}
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);
}
}
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);
}
/// <summary>
/// 初始化各个参数
/// </summary>
public static void Initial()
{
if (mqttClient != null)
{
return;
}
mqttClient = factory.CreateMqttClient();
//连接成功
mqttClient.UseConnectedHandler(e =>
{
Log.Info(moudle, "已连接");
LuaEnv.LuaStates.Run("MQTT", "MQTT", new
{
t = "connected"
});
});
//收到消息
mqttClient.UseApplicationMessageReceivedHandler(e =>
{
Log.Debug(moudle,
$"收到消息：{e.ApplicationMessage.Topic} {Encoding.UTF8.GetString(e.ApplicationMessage.Payload)}");
LuaEnv.LuaStates.Run("MQTT", "MQTT", new
{
t = "receive",
topic = e.ApplicationMessage.Topic,
payload = Encoding.UTF8.GetString(e.ApplicationMessage.Payload),
qos = (int)e.ApplicationMessage.QualityOfServiceLevel
});
});
//断线重连
mqttClient.UseDisconnectedHandler(async e =>
{
Log.Warn(moudle, "MQTT连接已断开");
if (!Utils.Setting.MqttEnable)
{
return;
}
await Task.Delay(TimeSpan.FromSeconds(5));
Log.Warn(moudle, "MQTT尝试重连");
try
{
var op = new MqttClientOptionsBuilder()
.WithClientId(Utils.Setting.ClientID)
.WithTcpServer(Utils.Setting.MqttBroker, Utils.Setting.MqttPort)
.WithCredentials(Utils.Setting.MqttUser, Utils.Setting.MqttPassword)
.WithKeepAlivePeriod(new TimeSpan(0, 0, Utils.Setting.KeepAlive));
if (Utils.Setting.MqttTLS)
{
op.WithTls();
}
var options = op.WithCleanSession().Build();
await mqttClient.ConnectAsync(options, CancellationToken.None);
}
catch (Exception ee)
{
Log.Warn(moudle, $"MQTT重连失败");
Log.Warn(moudle, $"原因： {ee.Message}");
}
});
}
