Add robots.txt generator

Program.cs

@@ -2,7 +2,7 @@ using Microsoft.EntityFrameworkCore;
 using MyDarling.Models;
 using MyDarling.Services;
 using Microsoft.AspNetCore.Identity;
-
+using MyDarling.Controllers;
 
 var builder = WebApplication.CreateBuilder(args);
 
@@ -28,6 +28,7 @@ builder.Services.Configure<IdentityOptions>( opts =>
 });
 
 builder.Services.AddTransient<IImageResizer, ImageResizer>();
+builder.Services.AddScoped<IRobotsTxtGenerator, RobotsTxtGenerator>();
 builder.Services.AddControllersWithViews();
 builder.Services.AddRazorPages();
 
@@ -38,6 +39,10 @@ app.MapControllers();
 app.MapDefaultControllerRoute();
 app.MapRazorPages();
 
+var robotsScope = app.Services.CreateScope();
+var robotsGenerator = robotsScope.ServiceProvider.GetService<IRobotsTxtGenerator>();
+app.MapGet("/robots.txt", () => robotsGenerator!.GetRobotsText());
+
 app.UseAuthentication();
 app.UseAuthorization();
 IdentitySeedData.CreateAdminAccount(app.Services, app.Configuration);

Services/IRobotsTxtGenerator.cs

@@ -0,0 +1,21 @@
+using System.Text;
+
+namespace MyDarling.Controllers;
+
+public interface IRobotsTxtGenerator
+{
+	public string GetRobotsText();
+}
+
+public class RobotsTxtGenerator : IRobotsTxtGenerator
+{
+	public string GetRobotsText()
+	{
+		StringBuilder stringBuilder = new();		
+		stringBuilder.AppendLine("user-agent: *");		
+		stringBuilder.AppendLine("disallow: /freedom");		
+		stringBuilder.AppendLine("disallow: /Account/");       	
+		
+        return stringBuilder.ToString();
+	}
+}