New: Use ASP.NET Core instead of Nancy

src/Radarr.Http/Authentication/NoAuthenticationHandler.cs

@@ -0,0 +1,37 @@
+using System.Collections.Generic;
+using System.Security.Claims;
+using System.Text.Encodings.Web;
+using System.Threading.Tasks;
+using Microsoft.AspNetCore.Authentication;
+using Microsoft.Extensions.Logging;
+using Microsoft.Extensions.Options;
+
+namespace Radarr.Http.Authentication
+{
+    public class NoAuthenticationHandler : AuthenticationHandler<AuthenticationSchemeOptions>
+    {
+        public NoAuthenticationHandler(IAuthenticationService authService,
+            IOptionsMonitor<AuthenticationSchemeOptions> options,
+            ILoggerFactory logger,
+            UrlEncoder encoder,
+            ISystemClock clock)
+            : base(options, logger, encoder, clock)
+        {
+        }
+
+        protected override Task<AuthenticateResult> HandleAuthenticateAsync()
+        {
+            var claims = new List<Claim>
+            {
+                new Claim("user", "Anonymous"),
+                new Claim("UiAuth", "true")
+            };
+
+            var identity = new ClaimsIdentity(claims, "NoAuth", "user", "identifier");
+            var principal = new ClaimsPrincipal(identity);
+            var ticket = new AuthenticationTicket(principal, "NoAuth");
+
+            return Task.FromResult(AuthenticateResult.Success(ticket));
+        }
+    }
+}