初始化

iotweb/Controllers/ValuesController.cs

@@ -0,0 +1,29 @@
+using Microsoft.AspNetCore.Http;
+using Microsoft.AspNetCore.Mvc;
+using MQTTnet.Server;
+namespace iotweb.Controllers
+{
+    [Route("api/[controller]/[action]")]
+    [ApiController]
+    public class ValuesController : ControllerBase
+    {
+        private readonly MqttServer _mqttServer;
+
+        public ValuesController(MqttServer mqttServer)
+        {
+            _mqttServer = mqttServer;
+        }
+
+
+        [HttpGet()]
+        public async Task<IActionResult> GetConnectedClients()
+        {
+            var clients = await _mqttServer.GetClientsAsync();
+            return Ok(clients.Select(c => new
+            {
+                Id = c.Id,
+                Endpoint = c.Endpoint
+            }));
+        }
+    }
+}

iotweb/Controllers/WeatherForecastController.cs

@@ -0,0 +1,33 @@
+using Microsoft.AspNetCore.Mvc;
+
+namespace iotweb.Controllers
+{
+    [ApiController]
+    [Route("[controller]")]
+    public class WeatherForecastController : ControllerBase
+    {
+        private static readonly string[] Summaries = new[]
+        {
+            "Freezing", "Bracing", "Chilly", "Cool", "Mild", "Warm", "Balmy", "Hot", "Sweltering", "Scorching"
+        };
+
+        private readonly ILogger<WeatherForecastController> _logger;
+
+        public WeatherForecastController(ILogger<WeatherForecastController> logger)
+        {
+            _logger = logger;
+        }
+
+        [HttpGet]
+        public IEnumerable<WeatherForecast> Get()
+        {
+            return Enumerable.Range(1, 5).Select(index => new WeatherForecast
+            {
+                Date = DateOnly.FromDateTime(DateTime.Now.AddDays(index)),
+                TemperatureC = Random.Shared.Next(-20, 55),
+                Summary = Summaries[Random.Shared.Next(Summaries.Length)]
+            })
+            .ToArray();
+        }
+    }
+}

iotweb/Program.cs

@@ -0,0 +1,92 @@
+using Microsoft.AspNetCore.Http.Connections;
+using MQTTnet.AspNetCore;
+using MQTTnet.Server;
+
+namespace iotweb
+{
+    public class Program
+    {
+        public static void Main(string[] args)
+        {
+            var builder = WebApplication.CreateBuilder(args);
+
+            builder.WebHost.UseKestrel(o =>
+            {
+                o.ListenAnyIP(1883, l => l.UseMqtt());
+                o.ListenAnyIP(5000);
+            });
+
+
+            builder.Services.AddMqttServer(optionsBuilder =>
+                {
+                    optionsBuilder.WithDefaultEndpoint();
+                });
+
+            builder.Services.AddMqttConnectionHandler();
+            builder.Services.AddConnections();
+            builder.Services.AddSingleton<MqttController>();
+
+            builder.Services.AddControllers();
+
+            var app = builder.Build();
+
+            app.UseRouting();
+            app.UseAuthorization();
+            app.UseEndpoints((endpoints) =>
+            {
+                endpoints.MapConnectionHandler<MqttConnectionHandler>("/mqtt", ConfigureWebSocketOptions);
+            });
+
+            app.UseMqttServer(
+              server =>
+              {
+                  server.ValidatingConnectionAsync += Server_ValidatingConnectionAsync; ;
+                  server.ClientConnectedAsync += Server_ClientConnectedAsync;
+              });
+            app.MapControllers();
+
+            app.Run();
+        }
+
+        private static void ConfigureWebSocketOptions(HttpConnectionDispatcherOptions options)
+        {
+            options.WebSockets.SubProtocolSelector = new Func<IList<string>, string>((IList<string> protocols) =>
+            {
+                return protocols.FirstOrDefault() ?? "mqtt";
+            });
+        }
+
+        private static Task Server_ClientConnectedAsync(ClientConnectedEventArgs arg)
+        {
+            return Task.CompletedTask;
+        }
+
+        private static Task Server_ValidatingConnectionAsync(ValidatingConnectionEventArgs arg)
+        {
+            Console.WriteLine(arg.ClientId);
+            return Task.CompletedTask;
+        }
+    }
+
+    sealed class MqttController
+    {
+        public MqttController()
+        {
+            // Inject other services via constructor.
+        }
+
+        public Task OnClientConnected(ClientConnectedEventArgs eventArgs)
+        {
+            Console.WriteLine($"Client '{eventArgs.ClientId}' connected.");
+            return Task.CompletedTask;
+        }
+
+
+        public Task ValidateConnection(ValidatingConnectionEventArgs eventArgs)
+        {
+            Console.WriteLine($"Client '{eventArgs.ClientId}' wants to connect. Accepting!");
+            return Task.CompletedTask;
+        }
+    }
+
+}

iotweb/Properties/launchSettings.json

@@ -0,0 +1,31 @@
+{
+  "$schema": "http://json.schemastore.org/launchsettings.json",
+  "iisSettings": {
+    "windowsAuthentication": false,
+    "anonymousAuthentication": true,
+    "iisExpress": {
+      "applicationUrl": "http://localhost:2022",
+      "sslPort": 0
+    }
+  },
+  "profiles": {
+    "http": {
+      "commandName": "Project",
+      "dotnetRunMessages": true,
+      "launchBrowser": true,
+      "launchUrl": "weatherforecast",
+      "applicationUrl": "http://localhost:5286",
+      "environmentVariables": {
+        "ASPNETCORE_ENVIRONMENT": "Development"
+      }
+    },
+    "IIS Express": {
+      "commandName": "IISExpress",
+      "launchBrowser": true,
+      "launchUrl": "weatherforecast",
+      "environmentVariables": {
+        "ASPNETCORE_ENVIRONMENT": "Development"
+      }
+    }
+  }
+}

iotweb/WeatherForecast.cs

@@ -0,0 +1,13 @@
+namespace iotweb
+{
+    public class WeatherForecast
+    {
+        public DateOnly Date { get; set; }
+
+        public int TemperatureC { get; set; }
+
+        public int TemperatureF => 32 + (int)(TemperatureC / 0.5556);
+
+        public string? Summary { get; set; }
+    }
+}

iotweb/appsettings.Development.json

@@ -0,0 +1,8 @@
+{
+  "Logging": {
+    "LogLevel": {
+      "Default": "Information",
+      "Microsoft.AspNetCore": "Warning"
+    }
+  }
+}

iotweb/appsettings.json

@@ -0,0 +1,17 @@
+{
+    "Kestrel": {
+        "Endpoints": {
+            "Http": {
+                "Url": "http://localhost:5286"
+            }
+        }
+    },
+
+    "Logging": {
+        "LogLevel": {
+            "Default": "Information",
+            "Microsoft.AspNetCore": "Warning"
+        }
+    },
+    "AllowedHosts": "*"
+}

iotweb/iotweb.csproj

@@ -0,0 +1,15 @@
+<Project Sdk="Microsoft.NET.Sdk.Web">
+
+  <PropertyGroup>
+    <TargetFramework>net8.0</TargetFramework>
+    <Nullable>enable</Nullable>
+    <ImplicitUsings>enable</ImplicitUsings>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="MQTTnet" Version="5.0.1.1416" />
+    <PackageReference Include="MQTTnet.AspNetCore" Version="5.0.1.1416" />
+    <PackageReference Include="MQTTnet.Server" Version="5.0.1.1416" />
+  </ItemGroup>
+
+</Project>

iotweb/iotweb.csproj.user

@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="Current" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <PropertyGroup>
+    <Controller_SelectedScaffolderID>ApiControllerEmptyScaffolder</Controller_SelectedScaffolderID>
+    <Controller_SelectedScaffolderCategoryPath>root/Common/Api</Controller_SelectedScaffolderCategoryPath>
+  </PropertyGroup>
+</Project>

iotweb/iotweb.http

@@ -0,0 +1,6 @@
+@iotweb_HostAddress = http://localhost:5286
+
+GET {{iotweb_HostAddress}}/weatherforecast/
+Accept: application/json
+
+###