Adds logout button to samples

Author: gislikonrad

src/AspNetCore.IdpSample/Pages/Logout.cshtml

@@ -0,0 +1,2 @@
+@page
+@model AspNetCore.IdpSample.Pages.Logout

src/AspNetCore.IdpSample/Pages/Logout.cshtml.cs

@@ -0,0 +1,15 @@
+using System.Threading.Tasks;
+using Microsoft.AspNetCore.Authentication;
+using Microsoft.AspNetCore.Mvc;
+using Microsoft.AspNetCore.Mvc.RazorPages;
+
+namespace AspNetCore.IdpSample.Pages;
+
+public class Logout : PageModel
+{
+    public async Task<IActionResult> OnGetAsync()
+    {
+        await HttpContext.SignOutAsync();
+        return Redirect("/");
+    }
+}

src/AspNetCore.IdpSample/Pages/Shared/_Layout.cshtml

@@ -43,6 +43,7 @@
                         <span class="navbar-text">
                             @(Context.User.FindFirst(System.Security.Claims.ClaimTypes.NameIdentifier)?.Value ?? "")
                         </span>
+                        <a class="nav-link text-dark" asp-area="" asp-page="/Logout">Logout</a>
                     }
                 </div>
             </div>

src/AspNetCore.SpSample/Pages/Logout.cshtml

@@ -0,0 +1,2 @@
+@page
+@model AspNetCore.SpSample.Pages.Logout

src/AspNetCore.SpSample/Pages/Logout.cshtml.cs

@@ -0,0 +1,15 @@
+using System.Threading.Tasks;
+using Microsoft.AspNetCore.Authentication;
+using Microsoft.AspNetCore.Mvc;
+using Microsoft.AspNetCore.Mvc.RazorPages;
+
+namespace AspNetCore.SpSample.Pages;
+
+public class Logout : PageModel
+{
+    public async Task<IActionResult> OnGetAsync()
+    {
+        await HttpContext.SignOutAsync();
+        return Redirect("/");
+    }
+}

src/AspNetCore.SpSample/Pages/Shared/_Layout.cshtml

@@ -43,6 +43,7 @@
                         <span class="navbar-text">
                             @(Context.User.FindFirst(System.Security.Claims.ClaimTypes.NameIdentifier)?.Value ?? "")
                         </span>
+                        <a class="nav-link text-dark" asp-area="" asp-page="/Logout">Logout</a>
                     }
                 </div>