private void CompareAndAssert(string topic, string filter, bool expectedResult)
{
Assert.AreEqual(expectedResult, MqttTopicFilterComparer.IsMatch(topic, filter));
}
public static async Task RunAsync()
{
try
{
var options = new MqttServerOptions
{
ConnectionValidator = new MqttServerConnectionValidatorDelegate(p =>
{
if (p.ClientId == "SpecialClient")
{
if (p.Username != "USER" || p.Password != "PASS")
{
p.ReturnCode = MqttConnectReturnCode.ConnectionRefusedBadUsernameOrPassword;
}
}
}),
Storage = new RetainedMessageHandler(),
ApplicationMessageInterceptor = new MqttServerApplicationMessageInterceptorDelegate(context =>
{
if (MqttTopicFilterComparer.IsMatch(context.ApplicationMessage.Topic, "/myTopic/WithTimestamp/#"))
{
// Replace the payload with the timestamp. But also extending a JSON
// based payload with the timestamp is a suitable use case.
context.ApplicationMessage.Payload = Encoding.UTF8.GetBytes(DateTime.Now.ToString("O"));
}
if (context.ApplicationMessage.Topic == "not_allowed_topic")
{
context.AcceptPublish = false;
context.CloseConnection = true;
}
}),
SubscriptionInterceptor = new MqttServerSubscriptionInterceptorDelegate(context =>
{
if (context.TopicFilter.Topic.StartsWith("admin/foo/bar") && context.ClientId != "theAdmin")
{
context.AcceptSubscription = false;
}
if (context.TopicFilter.Topic.StartsWith("the/secret/stuff") && context.ClientId != "Imperator")
{
context.AcceptSubscription = false;
context.CloseConnection = true;
}
})
};
// 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();
mqttServer.ApplicationMessageReceivedHandler = new MqttApplicationMessageReceivedHandlerDelegate(e =>
{
MqttNetConsoleLogger.PrintToConsole(
$"'{e.ClientId}' reported '{e.ApplicationMessage.Topic}' > '{Encoding.UTF8.GetString(e.ApplicationMessage.Payload ?? new byte[0])}'",
ConsoleColor.Magenta);
});
//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.ClientConnectedHandler = new MqttServerClientConnectedHandlerDelegate(e =>
{
Console.Write("Client disconnected event fired.");
});
await mqttServer.StartAsync(options);
Console.WriteLine("Press any key to exit.");
Console.ReadLine();
await mqttServer.StopAsync();
}
catch (Exception e)
{
Console.WriteLine(e);
}
Console.ReadLine();
}
public static async Task StartMqttServerAsync()
{
if (mqttServer == null)
{
try
{
var options = new MqttServerOptionsBuilder().WithConnectionValidator(context =>
{
//验证MQTT客户端
if (!string.IsNullOrEmpty(context.ClientId))
{
//if (context.Username != "u001" || context.Password != "p001")
//{
// context.ReturnCode = MqttConnectReturnCode.ConnectionRefusedBadUsernameOrPassword;
//}
context.ReturnCode = MqttConnectReturnCode.ConnectionAccepted;
}
else
{
context.ReturnCode = MqttConnectReturnCode.ConnectionRefusedIdentifierRejected;
}
})
.WithConnectionBacklog(2000) //设置连接数
.WithDefaultEndpointPort(1883) //默认监听端口是1883 这里设置成1884
.WithPersistentSessions() //使用持续会话
// .WithEncryptionSslProtocol(SslProtocols.Tls12)
.WithStorage(new RetainedMessageHandler()) //存储的实现,保留的应用程序消息
//拦截消息,扩展来自客户端的所有消息的时间戳
.WithApplicationMessageInterceptor(context =>
{
if (MqttTopicFilterComparer.IsMatch(context.ApplicationMessage.Topic, "/myTopic/WithTimestamp/#"))
{
context.ApplicationMessage.Payload = Encoding.UTF8.GetBytes(DateTime.Now.ToString("O"));
Console.WriteLine("此消息被被处理");
}
})
//拦截订阅
.WithSubscriptionInterceptor(context =>
{
if (context.TopicFilter.Topic.StartsWith("admin/foo/bar") && context.ClientId != "theAdmin")
{
context.AcceptSubscription = false;
}
if (context.TopicFilter.Topic.StartsWith("the/secret/stuff") && context.ClientId != "Imperator")
{
context.AcceptSubscription = false;
context.CloseConnection = true;
}
})
.Build();
//使用证书
//var certificate = new X509Certificate2(@"C:\certs\test\test.cer", "", X509KeyStorageFlags.Exportable);
//options.TlsEndpointOptions.Certificate = certificate.Export(X509ContentType.Pfx);
//options.TlsEndpointOptions.IsEnabled = true;
mqttServer = new MqttFactory().CreateMqttServer();
mqttServer.UseClientConnectedHandler(async e => {
Console.WriteLine($"客户端[{e.ClientId}]已连接............");
await Task.FromResult(1);
});
//mqttServer.ApplicationMessageReceived += MqttServer_ApplicationMessageReceived;
////mqttServer.ClientSubscribedTopic += MqttServer_ClientSubscribedTopic;//订阅事件
////mqttServer.ClientUnsubscribedTopic += MqttServer_ClientUnsubscribedTopic;//取消订阅事件
//mqttServer..ClientConnected += MqttServer_ClientConnected;
//mqttServer.ClientDisconnected += MqttServer_ClientDisconnected;
//await Task.Run(async () => { await mqttServer.StartAsync(options); });
mqttServer.StartAsync(options).Wait();
Console.WriteLine("MQTT服务启动成功！");
}
catch (Exception ex)
{
Console.WriteLine(ex.Message);
return;
}
}
}
public static void CreateMqttServer()
{
mqttServer = new MqttFactory().CreateMqttServer();
IMqttServerOptions option = new MqttServerOptionsBuilder()
//客户端验证
.WithConnectionValidator(c =>
{
if (c.ClientId.Length < 10)
{
c.ReturnCode = MqttConnectReturnCode.ConnectionRefusedIdentifierRejected;
return;
}
if (c.Username != "mySecretUser")
{
c.ReturnCode = MqttConnectReturnCode.ConnectionRefusedBadUsernameOrPassword;
return;
}
if (c.Password != "mySecretPassword")
{
c.ReturnCode = MqttConnectReturnCode.ConnectionRefusedBadUsernameOrPassword;
return;
}
c.ReturnCode = MqttConnectReturnCode.ConnectionAccepted;
})
//拦截应用消息
.WithApplicationMessageInterceptor((c) =>
{
if (MqttTopicFilterComparer.IsMatch(c.ApplicationMessage.Topic, "/myTopic/WithTimes"))
{
c.ApplicationMessage.Payload = Encoding.UTF8.GetBytes(DateTime.Now.ToString("O"));
}
})
//拦截订阅
.WithSubscriptionInterceptor((c) =>
{
if (c.TopicFilter.Topic.StartsWith("admin/foo/bar") && c.ClientId != "theAdmin")
{
c.AcceptSubscription = false;
}
if (c.TopicFilter.Topic.StartsWith("the/secret/stuff") && c.ClientId != "Imperator")
{
c.AcceptSubscription = false;
c.CloseConnection = true;
}
})
.WithDefaultEndpointPort(1884)
.WithDefaultEndpointBoundIPAddress(new System.Net.IPAddress(Encoding.Default.GetBytes("127.0.0.1")))
.WithDefaultCommunicationTimeout(new TimeSpan(0, 10, 0))
.WithConnectionBacklog(100).Build();
option.ClientMessageQueueInterceptor = c =>
{
Console.WriteLine(c.ReceiverClientId + "," + c.ApplicationMessage.Topic + "," + c.ApplicationMessage.Payload + "," + c.SenderClientId);
};
mqttServer.ApplicationMessageReceived += (s, e) => {
Console.WriteLine(e.ApplicationMessage.Topic + e.ApplicationMessage.Retain + e.ApplicationMessage.QualityOfServiceLevel + e.ApplicationMessage.Payload);
};
mqttServer.ClientConnected += (s, e) =>
{
Console.WriteLine("客户端" + e.ClientId + "已连接,协议版本:" + e.ClientId);
};
mqttServer.ClientSubscribedTopic += (s, e) =>
{
Console.WriteLine("客户端" + e.ClientId + "订阅消息:" + e.TopicFilter.Topic);
};
mqttServer.ClientUnsubscribedTopic += (s, e) =>
{
Console.WriteLine("客户端" + e.ClientId + "取消订阅消息:" + e.TopicFilter);
};
mqttServer.ClientDisconnected += (s, e) =>
{
Console.WriteLine("客户端" + e.ClientId + "断开连接!");
};
mqttServer.StartAsync(option);
}
public bool IsFilterMatch(string topic)
{
return(MqttTopicFilterComparer.IsMatch(topic, TopicFilter));
}
private static bool IsMatch(MqttTopicFilter topicFilter, IMqttRequestContext request) => MqttTopicFilterComparer.IsMatch(request.Topic, topicFilter.Topic) && request.QualityOfServiceLevel == topicFilter.QualityOfServiceLevel;
public static async Task RunAsync()
{
try
{
MqttNetConsoleLogger.ForwardToConsole();
var options = new MqttServerOptions
{
ConnectionValidator = p =>
{
if (p.ClientId == "SpecialClient")
{
if (p.Username != "USER" || p.Password != "PASS")
{
return(MqttConnectReturnCode.ConnectionRefusedBadUsernameOrPassword);
}
}
return(MqttConnectReturnCode.ConnectionAccepted);
},
Storage = new RetainedMessageHandler(),
ApplicationMessageInterceptor = context =>
{
if (MqttTopicFilterComparer.IsMatch(context.ApplicationMessage.Topic, "/myTopic/WithTimestamp/#"))
{
// Replace the payload with the timestamp. But also extending a JSON
// based payload with the timestamp is a suitable use case.
context.ApplicationMessage.Payload = Encoding.UTF8.GetBytes(DateTime.Now.ToString("O"));
}
},
SubscriptionInterceptor = context =>
{
if (context.TopicFilter.Topic.StartsWith("admin/foo/bar") && context.ClientId != "theAdmin")
{
context.AcceptSubscription = false;
}
if (context.TopicFilter.Topic.StartsWith("the/secret/stuff") && context.ClientId != "Imperator")
{
context.AcceptSubscription = false;
context.CloseConnection = true;
}
}
};
// 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();
mqttServer.ClientDisconnected += (s, e) =>
{
Console.Write("Client disconnected event fired.");
};
await mqttServer.StartAsync(options);
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 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 async Task StartServer()
{
if (mqttServer == null)
{
try
{
#region 初始化MqttServer
var options = new MqttServerOptionsBuilder().WithConnectionValidator(context =>
{
//验证MQTT客户端
if (!string.IsNullOrEmpty(context.ClientId))
{
Console.WriteLine(context.Username);
Console.WriteLine(context.Password);
if (context.Username != UserName || context.Password != Password)
{
context.ReturnCode = MqttConnectReturnCode.ConnectionRefusedBadUsernameOrPassword;
}
else
{
context.ReturnCode = MqttConnectReturnCode.ConnectionAccepted;
}
}
else
{
context.ReturnCode = MqttConnectReturnCode.ConnectionRefusedIdentifierRejected;
}
})
.WithConnectionBacklog(ConnctionCount) //设置连接数
.WithDefaultEndpointPort(PortNum) //默认监听端口是1883 这里设置成1884
.WithPersistentSessions() //使用持续会话
.WithEncryptionSslProtocol(SslProtocols.Tls12)
.WithStorage(new RetainedMessageHandler()) //存储的实现,保留的应用程序消息
//拦截消息,扩展来自客户端的所有消息的时间戳
.WithApplicationMessageInterceptor(context =>
{
if (MqttTopicFilterComparer.IsMatch(context.ApplicationMessage.Topic, MessageInterceptorFilter))
{
context.ApplicationMessage.Payload = Encoding.UTF8.GetBytes(DateTime.Now.ToString("O"));
Console.WriteLine("此消息被被处理");
}
})
//拦截订阅
.WithSubscriptionInterceptor(context =>
{
if (context.TopicFilter.Topic.StartsWith("admin/foo/bar") && context.ClientId != "theAdmin")
{
context.AcceptSubscription = false;
}
if (context.TopicFilter.Topic.StartsWith("the/secret/stuff") && context.ClientId != "Imperator")
{
context.AcceptSubscription = false;
context.CloseConnection = true;
}
})
.Build();
//使用证书
if (IsUseCert)
{
var certificate = new X509Certificate2(@"C:\certs\test\test.cer", "", X509KeyStorageFlags.Exportable);
options.TlsEndpointOptions.Certificate = certificate.Export(X509ContentType.Pfx);
options.TlsEndpointOptions.IsEnabled = true;
}
mqttServer = new MqttFactory().CreateMqttServer();
#endregion
#region 注册监听事件
//mqttServer.ApplicationMessageReceived += MqttServer_ApplicationMessageReceived;//收到消息事件
//mqttServer.ClientSubscribedTopic += MqttServer_ClientSubscribedTopic;//订阅事件
//mqttServer.ClientUnsubscribedTopic += MqttServer_ClientUnsubscribedTopic;//取消订阅事件
//mqttServer.ClientConnected += MqttServer_ClientConnected;//客户端连接事件
//mqttServer.ClientDisconnected += MqttServer_ClientDisconnected;//客户端断开连接事件
//mqttServer.Started += MqttServer_Started;//启动事件
//mqttServer.Stopped += MqttServer_Stopped;//停止事件
#endregion
await Task.Run(async() => await mqttServer.StartAsync(options));
}
catch (Exception ex)
{
throw ex;
}
}
}
