update iptv routing (#1631)

CHANGELOG.md

@@ -53,6 +53,7 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
   - Search index updates should now complete at the same time as library scans
 - Do not unnecessarily update the search index during media server library scans
 - Use different library for reading song metadata that supports multiple tag entries
+- Update `/iptv` routing to make UI completely inaccessible from that path prefix
 
 ## [0.8.5-beta] - 2024-01-30
 ### Added

ErsatzTV/Startup.cs

@@ -531,21 +531,36 @@ public class Startup
                 // ServeUnknownFileTypes = true
             });
 
-        app.UseRouting();
+        app.MapWhen(
+            ctx => !ctx.Request.Path.StartsWithSegments("/iptv"),
+            blazor =>
+            {
+                blazor.UseRouting();
 
                 if (OidcHelper.IsEnabled)
                 {
-            app.UseAuthentication();
+                    blazor.UseAuthentication();
-            app.UseAuthorization();
+#pragma warning disable ASP0001
+                    blazor.UseAuthorization();
+#pragma warning restore ASP0001
                 }
                 
-        app.UseEndpoints(
+                blazor.UseEndpoints(
                     endpoints =>
                     {
                         endpoints.MapControllers();
                         endpoints.MapBlazorHub();
                         endpoints.MapFallbackToPage("/_Host");
                     });
+            });
+
+        app.MapWhen(
+            ctx => ctx.Request.Path.StartsWithSegments("/iptv"),
+            iptv =>
+            {
+                iptv.UseRouting();
+                iptv.UseEndpoints(endpoints => endpoints.MapControllers());
+            });
     }
     
     private static void CustomServices(IServiceCollection services)