Add project files.

.dockerignore

@@ -0,0 +1,30 @@
+**/.classpath
+**/.dockerignore
+**/.env
+**/.git
+**/.gitignore
+**/.project
+**/.settings
+**/.toolstarget
+**/.vs
+**/.vscode
+**/*.*proj.user
+**/*.dbmdl
+**/*.jfm
+**/azds.yaml
+**/bin
+**/charts
+**/docker-compose*
+**/Dockerfile*
+**/node_modules
+**/npm-debug.log
+**/obj
+**/secrets.dev.yaml
+**/values.dev.yaml
+LICENSE
+README.md
+!**/.gitignore
+!.git/HEAD
+!.git/config
+!.git/packed-refs
+!.git/refs/heads/**

AS1024.NetworkQuality.Server.sln

@@ -0,0 +1,25 @@
+
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio Version 17
+VisualStudioVersion = 17.8.34408.163
+MinimumVisualStudioVersion = 10.0.40219.1
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "AS1024.NetworkQuality.Server", "AS1024.NetworkQuality.Server\AS1024.NetworkQuality.Server.csproj", "{71ABE0E0-226A-46E1-8CC9-76CDD7F5506F}"
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|Any CPU = Debug|Any CPU
+		Release|Any CPU = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{71ABE0E0-226A-46E1-8CC9-76CDD7F5506F}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{71ABE0E0-226A-46E1-8CC9-76CDD7F5506F}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{71ABE0E0-226A-46E1-8CC9-76CDD7F5506F}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{71ABE0E0-226A-46E1-8CC9-76CDD7F5506F}.Release|Any CPU.Build.0 = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(SolutionProperties) = preSolution
+		HideSolutionNode = FALSE
+	EndGlobalSection
+	GlobalSection(ExtensibilityGlobals) = postSolution
+		SolutionGuid = {418E03E1-4880-487E-8E24-0A3AF27ABE76}
+	EndGlobalSection
+EndGlobal

AS1024.NetworkQuality.Server/AS1024.NetworkQuality.Server.csproj

@@ -0,0 +1,16 @@
+<Project Sdk="Microsoft.NET.Sdk.Web">
+
+  <PropertyGroup>
+    <TargetFramework>net8.0</TargetFramework>
+    <Nullable>enable</Nullable>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <InvariantGlobalization>true</InvariantGlobalization>
+    <PublishAot>true</PublishAot>
+    <DockerDefaultTargetOS>Linux</DockerDefaultTargetOS>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="Microsoft.VisualStudio.Azure.Containers.Tools.Targets" Version="1.19.5" />
+  </ItemGroup>
+
+</Project>

AS1024.NetworkQuality.Server/Dockerfile

@@ -0,0 +1,29 @@
+#See https://aka.ms/customizecontainer to learn how to customize your debug container and how Visual Studio uses this Dockerfile to build your images for faster debugging.
+
+FROM mcr.microsoft.com/dotnet/aspnet:8.0 AS base
+USER app
+WORKDIR /app
+EXPOSE 8080
+
+FROM mcr.microsoft.com/dotnet/sdk:8.0 AS build
+# Install clang/zlib1g-dev dependencies for publishing to native
+RUN apt-get update \
+    && apt-get install -y --no-install-recommends \
+    clang zlib1g-dev
+ARG BUILD_CONFIGURATION=Release
+WORKDIR /src
+COPY ["AS1024.NetworkQuality.Server/AS1024.NetworkQuality.Server.csproj", "AS1024.NetworkQuality.Server/"]
+RUN dotnet restore "./AS1024.NetworkQuality.Server/./AS1024.NetworkQuality.Server.csproj"
+COPY . .
+WORKDIR "/src/AS1024.NetworkQuality.Server"
+RUN dotnet build "./AS1024.NetworkQuality.Server.csproj" -c $BUILD_CONFIGURATION -o /app/build
+
+FROM build AS publish
+ARG BUILD_CONFIGURATION=Release
+RUN dotnet publish "./AS1024.NetworkQuality.Server.csproj" -c $BUILD_CONFIGURATION -o /app/publish /p:UseAppHost=true
+
+FROM mcr.microsoft.com/dotnet/runtime-deps:8.0 AS final
+WORKDIR /app
+EXPOSE 8080
+COPY --from=publish /app/publish .
+ENTRYPOINT ["./AS1024.NetworkQuality.Server"]

AS1024.NetworkQuality.Server/LargeStreamResult.cs

@@ -0,0 +1,44 @@
+internal class LargeStreamResult : System.IO.Stream
+{
+    private long _position = 0;
+    private const long _length = 8L * 1024L * 1024L * 1024L; // 8 GB
+
+    public override bool CanRead => true;
+    public override bool CanSeek => true;
+    public override bool CanWrite => false;
+    public override long Length => _length;
+    public override long Position { get => _position; set => _position = value; }
+
+    public override void Flush() { }
+
+    public override int Read(byte[] buffer, int offset, int count)
+    {
+        int bytesToRead = (int)Math.Min(count, _length - _position);
+        if (bytesToRead <= 0)
+            return 0;
+
+        _position += bytesToRead;
+        return bytesToRead;
+    }
+
+    public override long Seek(long offset, System.IO.SeekOrigin origin)
+    {
+        switch (origin)
+        {
+            case System.IO.SeekOrigin.Begin:
+                _position = offset;
+                break;
+            case System.IO.SeekOrigin.Current:
+                _position += offset;
+                break;
+            case System.IO.SeekOrigin.End:
+                _position = _length + offset;
+                break;
+        }
+        return _position;
+    }
+
+    public override void SetLength(long value) { }
+
+    public override void Write(byte[] buffer, int offset, int count) { }
+}

AS1024.NetworkQuality.Server/Program.cs

@@ -0,0 +1,84 @@
+using AS1024.NetworkQuality.Server;
+using System.Text.Json.Serialization;
+const string schemeNetQuality = "https";
+var builder = WebApplication.CreateSlimBuilder(args);
+
+builder.Services.ConfigureHttpJsonOptions(options =>
+{
+});
+
+var app = builder.Build();
+
+app.MapGet("/api/v1/config", (HttpRequest request) =>
+{
+    string host = request.Host.Host;
+    int port = request.Host.Port ?? 
+    (request.IsHttps ? 443 : 80);
+    Uri smallDownloadUrl = new UriBuilder
+    {
+        Scheme = schemeNetQuality,
+        Host = host,
+        Port = port,
+        Path = "/api/v1/small"
+    }.Uri;
+
+    Uri largeDownloadUrl = new UriBuilder
+    {
+        Scheme = schemeNetQuality,
+        Host = host,
+        Port = port,
+        Path = "/api/v1/large"
+    }.Uri;
+
+    Uri uploadUrl = new UriBuilder
+    {
+        Scheme = schemeNetQuality,
+        Host = host,
+        Port = port,
+        Path = "/api/v1/upload"
+    }.Uri;
+
+    ConfigResponse config = new()
+    {
+        Version = 1,
+        Urls = new Urls
+        {
+            SmallDownloadUrl = smallDownloadUrl.AbsoluteUri,
+            LargeDownloadUrl = largeDownloadUrl.AbsoluteUri,
+            UploadUrl = uploadUrl.AbsoluteUri
+        }
+    };
+
+    return Results.Json(config,
+        AppJsonSerializerContext.Default);
+});
+
+app.MapGet("/api/v1/small", (HttpResponse response) =>
+{
+    response.ContentType = "application/octet-stream";
+    return Results.File(new byte[] { 0 });
+});
+
+app.MapGet("/api/v1/large", (HttpResponse response) =>
+{
+    response.ContentType = "application/octet-stream";
+    return Results.Stream(new LargeStreamResult());
+});
+
+app.MapPost("/api/v1/upload", async (HttpRequest request) =>
+{
+    using (var stream = new System.IO.MemoryStream())
+    {
+        await request.Body.CopyToAsync(stream);
+    }
+    return Results.Ok();
+});
+
+app.Run();
+
+
+[JsonSerializable(typeof(ConfigResponse))]
+internal partial class AppJsonSerializerContext : JsonSerializerContext
+{
+
+}

AS1024.NetworkQuality.Server/Properties/launchSettings.json

@@ -0,0 +1,24 @@
+{
+  "profiles": {
+    "http": {
+      "commandName": "Project",
+      "launchBrowser": true,
+      "launchUrl": "api/v1/config",
+      "environmentVariables": {
+        "ASPNETCORE_ENVIRONMENT": "Development"
+      },
+      "dotnetRunMessages": true,
+      "applicationUrl": "http://localhost:5294"
+    },
+    "Docker": {
+      "commandName": "Docker",
+      "launchBrowser": true,
+      "launchUrl": "{Scheme}://{ServiceHost}:{ServicePort}/api/v1/config",
+      "environmentVariables": {
+        "ASPNETCORE_HTTP_PORTS": "8080"
+      },
+      "publishAllPorts": true
+    }
+  },
+  "$schema": "http://json.schemastore.org/launchsettings.json"
+}

AS1024.NetworkQuality.Server/ResponseModel.cs

@@ -0,0 +1,15 @@
+namespace AS1024.NetworkQuality.Server
+{
+    public class ConfigResponse
+    {
+        public int Version { get; set; }
+        public required Urls Urls { get; set; }
+    }
+
+    public class Urls
+    {
+        public required string SmallDownloadUrl { get; set; }
+        public required string LargeDownloadUrl { get; set; }
+        public required string UploadUrl { get; set; }
+    }
+}

AS1024.NetworkQuality.Server/appsettings.Development.json

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

AS1024.NetworkQuality.Server/appsettings.json

@@ -0,0 +1,9 @@
+{
+  "Logging": {
+    "LogLevel": {
+      "Default": "Information",
+      "Microsoft.AspNetCore": "Warning"
+    }
+  },
+  "AllowedHosts": "*"
+}