Server Page Rendering / Cookie Authentification

CookieAuthenticationExample/App.razor

@@ -5,6 +5,8 @@
                 @*this gets displayed if the user is not authorized to view the page*@
                 <NotAuthorized>
                     <p>Sie sind nicht berechtigt, diese Seite aufzurufen.</p>
+
+                    <LoginControl></LoginControl>
                 </NotAuthorized>
             </AuthorizeRouteView>
             <FocusOnNavigate RouteData="@routeData" Selector="h1" />

CookieAuthenticationExample/Models/NavigationPages.cs

@@ -0,0 +1,11 @@
+namespace CookieAuthenticationExample.Models
+{
+    public class NavigationPages
+    {
+        public const string Home = "/";
+
+        public const string Login = "/Login";
+        public const string WeatherForecast = "/fetchdata";
+        public const string Counter = "/counter";
+    }
+}

CookieAuthenticationExample/Pages/FetchData.razor

@@ -2,8 +2,10 @@
 @using CookieAuthenticationExample.Data
 
 @using System.Security.Claims
+@using CookieAuthenticationExample.Models
 @inject AuthenticationStateProvider AuthenticationStateProvider
 @inject WeatherForecastService ForecastService
+@inject NavigationManager NavigationManager
 
 @attribute [Authorize]
 
@@ -13,65 +15,73 @@
 
 <p>This component demonstrates fetching data from a service.</p>
 
+<button @onclick="Refresh">Refresh</button>
+
 @if (forecasts == null)
 {
-	<p>
-		<em>Loading...</em>
-	</p>
+    <p>
+        <em>Loading...</em>
+    </p>
 }
 else
 {
-	<table class="table">
-		<thead>
-		<tr>
-			<th>Date</th>
-			<th>Temp. (C)</th>
-			<th>Temp. (F)</th>
-			<th>Summary</th>
-		</tr>
-		</thead>
-		<tbody>
-		@foreach (var forecast in forecasts)
-		{
-			<tr>
-				<td>@forecast.Date.ToShortDateString()</td>
-				<td>@forecast.TemperatureC</td>
-				<td>@forecast.TemperatureF</td>
-				<td>@forecast.Summary</td>
-			</tr>
-		}
-		</tbody>
-	</table>
+    <table class="table">
+        <thead>
+            <tr>
+                <th>Date</th>
+                <th>Temp. (C)</th>
+                <th>Temp. (F)</th>
+                <th>Summary</th>
+            </tr>
+        </thead>
+        <tbody>
+            @foreach (var forecast in forecasts)
+            {
+                <tr>
+                    <td>@forecast.Date.ToShortDateString()</td>
+                    <td>@forecast.TemperatureC</td>
+                    <td>@forecast.TemperatureF</td>
+                    <td>@forecast.Summary</td>
+                </tr>
+            }
+        </tbody>
+    </table>
 }
 
 @code {
-	private WeatherForecast[]? forecasts;
-	private IEnumerable<Claim> claims = Enumerable.Empty<Claim>();
-	private IEnumerable<string> userClaimRoles = Enumerable.Empty<string>();
+    private WeatherForecast[]? forecasts;
+    private IEnumerable<Claim> claims = Enumerable.Empty<Claim>();
+    private IEnumerable<string> userClaimRoles = Enumerable.Empty<string>();
+
+    private async Task GetClaimsPrincipalData()
+    {
+        var authState = await AuthenticationStateProvider.GetAuthenticationStateAsync();
+        var user = authState.User;
+        if (user.Identity is not null && user.Identity.IsAuthenticated)
+        {
+            claims = user.Claims;
+            userClaimRoles = user.Claims.Select(a => a.Value).ToList();
+        }
 
-	private async Task GetClaimsPrincipalData()
-	{
-		var authState = await AuthenticationStateProvider.GetAuthenticationStateAsync();
-		var user = authState.User;
-		if (user.Identity is not null && user.Identity.IsAuthenticated)
-		{
-			claims = user.Claims;
-			userClaimRoles = user.Claims.Select(a => a.Value).ToList();
-		}
+        if (userClaimRoles.Contains("Administrator"))
+        {
+            //yayyy admin
+        }
+    }
 
-		if (userClaimRoles.Contains("Administrator"))
-		{
-			//yayyy admin
-		}
-	}
+    private Task Refresh()
+    {
+        NavigationManager.NavigateTo(NavigationPages.WeatherForecast, true);
+        return Task.CompletedTask;
+    }
 
 
-	protected override async Task OnInitializedAsync()
-	{
-		//dummy call to simulate claim user role check
-		GetClaimsPrincipalData();
+    protected override async Task OnInitializedAsync()
+    {
+        //dummy call to simulate claim user role check
+        await GetClaimsPrincipalData();
 
-		forecasts = await ForecastService.GetForecastAsync(DateOnly.FromDateTime(DateTime.Now));
-	}
+        forecasts = await ForecastService.GetForecastAsync(DateOnly.FromDateTime(DateTime.Now));
+    }
 
 }

CookieAuthenticationExample/Pages/LogOut.cshtml.cs

@@ -1,3 +1,4 @@
+using CookieAuthenticationExample.Models;
 using Microsoft.AspNetCore.Authentication;
 using Microsoft.AspNetCore.Authentication.Cookies;
 using Microsoft.AspNetCore.Mvc;
@@ -12,7 +13,7 @@ public async Task<IActionResult> OnGetAsync()
 			// Clear the existing external cookie
 			await HttpContext.SignOutAsync(CookieAuthenticationDefaults.AuthenticationScheme);
 
-			return LocalRedirect(Url.Content("~/"));
+			return LocalRedirect(NavigationPages.Home);
 		}
 	}
 }

CookieAuthenticationExample/Pages/Login.cshtml.cs

@@ -3,6 +3,7 @@
 using Microsoft.AspNetCore.Mvc;
 using Microsoft.AspNetCore.Mvc.RazorPages;
 using System.Security.Claims;
+using CookieAuthenticationExample.Models;
 using CookieAuthenticationExample.Services;
 using Microsoft.AspNetCore.Authorization;
 
@@ -21,9 +22,8 @@ public LoginModel(UserService userService)
 		public async Task<IActionResult> OnGetAsync(string paramUsername, string paramPassword)
         {
             if (string.IsNullOrEmpty(paramUsername) || string.IsNullOrEmpty(paramPassword))
-                return LocalRedirect("/");
+                return LocalRedirect(NavigationPages.Home);
 
-			string returnUrl = Url.Content("~/");
 			try
 			{
 				// Clear the existing external cookie
@@ -35,7 +35,7 @@ public async Task<IActionResult> OnGetAsync(string paramUsername, string paramPa
 			if (!_userService.CheckDatabaseIfPasswordMatches(paramUsername, paramPassword))
 			{
 				//no login possible
-				return LocalRedirect(returnUrl);
+				return LocalRedirect(NavigationPages.Home);
 			}
 
 			//todo get user roles from Database via UserService
@@ -60,7 +60,7 @@ public async Task<IActionResult> OnGetAsync(string paramUsername, string paramPa
 				string error = ex.Message;
 
 			}
-			return LocalRedirect(returnUrl);
+			return LocalRedirect(NavigationPages.Home);
 		}
 	}
 

CookieAuthenticationExample/Program.cs

@@ -14,11 +14,18 @@
 builder.Services.AddAuthentication(CookieAuthenticationDefaults.AuthenticationScheme)
     .AddCookie(options =>
     {
-        options.ExpireTimeSpan = TimeSpan.FromSeconds(30);
+        options.ExpireTimeSpan = TimeSpan.FromSeconds(5);
         options.SlidingExpiration = true;
         options.AccessDeniedPath = "/Forbidden";
         options.LoginPath = "/login";
 
+        options.Cookie = new CookieBuilder()
+        {
+            SameSite = SameSiteMode.Lax,
+            SecurePolicy = CookieSecurePolicy.SameAsRequest,
+            HttpOnly = true,
+        };
+
     });
 
 builder.Services.AddSingleton<IHttpContextAccessor, HttpContextAccessor>();

CookieAuthenticationExample/Shared/NavMenu.razor

@@ -1,4 +1,7 @@
-<div class="top-row ps-3 navbar navbar-dark">
+@using CookieAuthenticationExample.Models
+@inject NavigationManager NavigationManager
+
+<div class="top-row ps-3 navbar navbar-dark">
     <div class="container-fluid">
         <a class="navbar-brand" href="">CookieAuthenticationExample</a>
         <button title="Navigation menu" class="navbar-toggler" @onclick="ToggleNavMenu">
@@ -15,12 +18,12 @@
             </NavLink>
         </div>
         <div class="nav-item px-3">
-            <NavLink class="nav-link" href="counter">
+            <NavLink class="nav-link" href="counter" @onclick='() => NavigateTo(NavigationPages.Counter)'>
                 <span class="oi oi-plus" aria-hidden="true"></span> Counter
             </NavLink>
-        </div>
+        </div>`
 	    <div class="nav-item px-3">
-		    <NavLink class="nav-link" href="fetchdata">
+            <NavLink class="nav-link" href="fetchdata" @onclick='() => NavigateTo(NavigationPages.WeatherForecast)'>
 			    <span class="oi oi-list-rich" aria-hidden="true"></span> Fetch data
 		    </NavLink>
 	    </div>
@@ -37,4 +40,9 @@
     {
         collapseNavMenu = !collapseNavMenu;
     }
+
+    private void NavigateTo(string url)
+    {
+        NavigationManager.NavigateTo(url, true);
+    }
 }