refact

Extensions/Extensions.cs

@@ -0,0 +1,27 @@
+using System;
+using IdentityServer4.Models;
+using Microsoft.AspNetCore.Mvc;
+
+namespace IdentityServerHost.Quickstart.UI
+{
+    public static class Extensions
+    {
+        /// <summary>
+        /// Checks if the redirect URI is for a native client.
+        /// </summary>
+        /// <returns></returns>
+        public static bool IsNativeClient(this AuthorizationRequest context)
+        {
+            return !context.RedirectUri.StartsWith("https", StringComparison.Ordinal)
+               && !context.RedirectUri.StartsWith("http", StringComparison.Ordinal);
+        }
+
+        public static IActionResult LoadingPage(this Controller controller, string viewName, string redirectUri)
+        {
+            controller.HttpContext.Response.StatusCode = 200;
+            controller.HttpContext.Response.Headers["Location"] = "";
+            
+            return controller.View(viewName, new RedirectViewModel { RedirectUrl = redirectUri });
+        }
+    }
+}