Add hack proxy project

server/Ksp.WebServer/.gitignore

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+bin
+obj

server/Ksp.WebServer/Controllers/WeatherForecastController.cs

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+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Threading.Tasks;
+using Microsoft.AspNetCore.Mvc;
+using Microsoft.Extensions.Logging;
+
+namespace Ksp.WebServer.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()
+        {
+            var rng = new Random();
+            return Enumerable.Range(1, 5).Select(index => new WeatherForecast
+            {
+                Date = DateTime.Now.AddDays(index),
+                TemperatureC = rng.Next(-20, 55),
+                Summary = Summaries[rng.Next(Summaries.Length)]
+            })
+            .ToArray();
+        }
+    }
+}

server/Ksp.WebServer/Ksp.WebServer.csproj

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+<Project Sdk="Microsoft.NET.Sdk.Web">
+
+  <PropertyGroup>
+    <TargetFramework>netcoreapp3.1</TargetFramework>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="AspNetCore.Proxy" Version="4.1.0" />
+  </ItemGroup>
+
+
+</Project>

server/Ksp.WebServer/Program.cs

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+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Threading.Tasks;
+using Microsoft.AspNetCore.Hosting;
+using Microsoft.Extensions.Configuration;
+using Microsoft.Extensions.Hosting;
+using Microsoft.Extensions.Logging;
+
+namespace Ksp.WebServer
+{
+    public class Program
+    {
+        public static void Main(string[] args)
+        {
+            CreateHostBuilder(args).Build().Run();
+        }
+
+        public static IHostBuilder CreateHostBuilder(string[] args) =>
+            Host.CreateDefaultBuilder(args)
+                .ConfigureWebHostDefaults(webBuilder =>
+                {
+                    webBuilder.UseStartup<Startup>();
+                });
+    }
+}

server/Ksp.WebServer/Properties/launchSettings.json

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+{
+  "$schema": "http://json.schemastore.org/launchsettings.json",
+  "iisSettings": {
+    "windowsAuthentication": false,
+    "anonymousAuthentication": true,
+    "iisExpress": {
+      "applicationUrl": "http://localhost:45302",
+      "sslPort": 44318
+    }
+  },
+  "profiles": {
+    "IIS Express": {
+      "commandName": "IISExpress",
+      "launchBrowser": true,
+      "launchUrl": "index.html",
+      "environmentVariables": {
+        "ASPNETCORE_ENVIRONMENT": "Development"
+      }
+    },
+    "Ksp.WebServer": {
+      "commandName": "Project",
+      "launchBrowser": true,
+      "launchUrl": "index.html",
+      "applicationUrl": "https://ksp.localhost:5001;http://ksp.localhost:5000",
+      "environmentVariables": {
+        "ASPNETCORE_ENVIRONMENT": "Development"
+      }
+    }
+  }
+}

server/Ksp.WebServer/Startup.cs

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+using System;
+using System.Collections.Generic;
+using System.IO;
+using System.Linq;
+using System.Net;
+using System.Net.Http;
+using System.Net.Http.Headers;
+using System.Threading.Tasks;
+using AspNetCore.Proxy;
+using AspNetCore.Proxy.Builders;
+using Microsoft.AspNetCore.Builder;
+using Microsoft.AspNetCore.Hosting;
+using Microsoft.AspNetCore.HttpsPolicy;
+using Microsoft.AspNetCore.Mvc;
+using Microsoft.Extensions.Configuration;
+using Microsoft.Extensions.DependencyInjection;
+using Microsoft.Extensions.FileProviders;
+using Microsoft.Extensions.Hosting;
+using Microsoft.Extensions.Logging;
+
+namespace Ksp.WebServer
+{
+    public class Startup
+    {
+        public Startup(IConfiguration configuration)
+        {
+            Configuration = configuration;
+        }
+
+        public IConfiguration Configuration { get; }
+
+        // This method gets called by the runtime. Use this method to add services to the container.
+        public void ConfigureServices(IServiceCollection services)
+        {
+            services.AddControllers();
+            services.AddHttpClient("RedirectClient")
+                .ConfigurePrimaryHttpMessageHandler(h => {
+                return new HttpClientHandler {
+                    AllowAutoRedirect = false,
+                    UseCookies = false
+                };
+            });
+            services.AddProxies();
+        }
+
+        // This method gets called by the runtime. Use this method to configure the HTTP request pipeline.
+        public void Configure(IApplicationBuilder app, IWebHostEnvironment env)
+        {
+            if (env.IsDevelopment())
+            {
+                app.UseDeveloperExceptionPage();
+            }
+            else
+            {
+                app.UseHttpsRedirection();
+            }
+
+            app.UseRouting();
+
+            app.UseAuthorization();
+
+            app.UseEndpoints(endpoints =>
+            {
+                endpoints.MapControllers();
+            });
+
+            app.UseStaticFiles(new StaticFileOptions {
+                FileProvider = new PhysicalFileProvider(
+                    Path.Combine(env.ContentRootPath, "../../frontend/public")),
+            });
+
+            app.RunProxy(proxy => proxy
+                .UseHttp((context, args) =>
+                {
+                    return "https://ksp-test.ks.matfyz.cz";
+                }, opt => {
+                    opt.WithHttpClientName("RedirectClient");
+
+                    opt.WithBeforeSend(async (cx, request) => {
+                        request.Headers.Authorization =
+                            new AuthenticationHeaderValue("Basic", "SECRET");
+                        if (request.Headers.Referrer is object)
+                            request.Headers.Referrer =
+                                new UriBuilder(request.Headers.Referrer) {
+                                    Host = "ksp-test.ks.matfyz.cz",
+                                    Port = 443,
+                                    Scheme = "https"
+                                }.Uri;
+                        // request.Headers.Remove("X-Forwarded-For");
+                        // request.Headers.Remove("X-Forwarded-Proto");
+                        // request.Headers.Remove("X-Forwarded-Host");
+                        // request.Headers.Remove("Forwarded");
+                        // request.Headers.Remove("Origin");
+                        // request.Headers.Add("Origin", "https://ksp-test.ks.matfyz.cz");
+                        Console.WriteLine(request);
+                    });
+                    opt.WithAfterReceive(async (cx, response) => {
+                        Console.WriteLine(response);
+                        if (response.Headers.Location is object && response.Headers.Location.Host == "ksp-test.ks.matfyz.cz")
+                        {
+                            response.Headers.Location = new UriBuilder(response.Headers.Location) {
+                                Host = cx.Request.Host.Host,
+                                Port = cx.Request.Host.Port.Value,
+                                Scheme = cx.Request.Scheme
+                            }.Uri;
+                        }
+                        if (response.Headers.TryGetValues("Set-Cookie", out var v))
+                        {
+                            response.Headers.Remove("Set-Cookie");
+                            response.Headers.Add("Set-Cookie", v.Select(s =>
+                                s.Replace("; secure", "")
+                                 .Replace("; domain=ksp-test.ks.matfyz.cz", $"; domain={cx.Request.Host.Host}")
+                            ));
+                        }
+                    });
+                }));
+        }
+    }
+}

server/Ksp.WebServer/WeatherForecast.cs

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+using System;
+
+namespace Ksp.WebServer
+{
+    public class WeatherForecast
+    {
+        public DateTime Date { get; set; }
+
+        public int TemperatureC { get; set; }
+
+        public int TemperatureF => 32 + (int)(TemperatureC / 0.5556);
+
+        public string Summary { get; set; }
+    }
+}

server/Ksp.WebServer/appsettings.Development.json

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+{
+  "Logging": {
+    "LogLevel": {
+      "Default": "Information",
+      "Microsoft": "Warning",
+      "Microsoft.Hosting.Lifetime": "Information"
+    }
+  }
+}

server/Ksp.WebServer/appsettings.json

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+{
+  "Logging": {
+    "LogLevel": {
+      "Default": "Information",
+      "Microsoft": "Warning",
+      "Microsoft.Hosting.Lifetime": "Information"
+    }
+  },
+  "AllowedHosts": "*"
+}