Startup.cs

using Microsoft.AspNetCore;
using Microsoft.AspNetCore.Authentication.Cookies;
using Microsoft.AspNetCore.Builder;
using Microsoft.AspNetCore.Hosting;
using Microsoft.AspNetCore.Rewrite;
using Microsoft.Extensions.Configuration;
using Microsoft.Extensions.DependencyInjection;
using Microsoft.Net.Http.Headers;
using PhotoGallery.Models;
using System;

namespace PhotoGallery
{
    public class Startup
    {
        public Startup(IConfiguration configuration)
        {
            Configuration = configuration;
        }

        public static void Main(string[] args)
        {
            BuildWebHost(args).Run();
        }

        public static IWebHost BuildWebHost(string[] args) =>
            WebHost.CreateDefaultBuilder(args)
                .UseStartup<Startup>()
                .UseKestrel(a => a.AddServerHeader = false)
                .Build();

        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.AddMvc();
            services.AddSingleton<AlbumCollection>();
            services.AddSingleton<ImageProcessor>();
            services.AddAuthentication(options =>
            {
                options.DefaultAuthenticateScheme = CookieAuthenticationDefaults.AuthenticationScheme;
                options.DefaultSignInScheme = CookieAuthenticationDefaults.AuthenticationScheme;
            }).AddCookie();

            services.AddWebOptimizer(pipeline =>
            {
                pipeline.TranspileJavaScriptFiles();
                pipeline.CompileScssFiles();
            });
        }

        // This method gets called by the runtime. Use this method to configure the HTTP request pipeline.
        public void Configure(IApplicationBuilder app, IHostingEnvironment env)
        {
            if (env.IsDevelopment())
            {
                app.UseDeveloperExceptionPage();
                app.UseBrowserLink();
            }

            app.UseStatusCodePages("text/plain", "Status code page, status code: {0}");
            app.UseWebOptimizer();

            app.UseStaticFiles(new StaticFileOptions()
            {
                OnPrepareResponse = (context) =>
                {
                    var time = TimeSpan.FromDays(365);
                    context.Context.Response.Headers[HeaderNames.CacheControl] = $"max-age={time.TotalSeconds.ToString()}";
                    context.Context.Response.Headers[HeaderNames.Expires] = DateTime.UtcNow.Add(time).ToString("R");
                }
            });

            if (Configuration.GetValue<bool>("forcessl"))
            {
                app.UseRewriter(new RewriteOptions().AddRedirectToHttps());
            }

            app.UseAuthentication();

            app.UseMvc(routes =>
            {
                routes.MapRoute(
                    name: "default",
                    template: "{controller=Home}/{action=Index}/{id?}");
            });
        }
    }
}