Merge pull request #135 from martinjonsson01/130-activity-based-auto-…

…logout

130 activity based auto logout

src/Application/Users/UserService.cs

@@ -95,7 +95,7 @@ private string GenerateJwtToken(User user)
             Subject = new ClaimsIdentity(CreateClaims(user)),
             Audience = _config[ConfigurationKeys.JwtIssuer],
             Issuer = _config[ConfigurationKeys.JwtIssuer],
-            Expires = DateTime.UtcNow.AddHours(1),
+            Expires = DateTime.Now.AddMonths(1),
             SigningCredentials =
                 new SigningCredentials(new SymmetricSecurityKey(key), SecurityAlgorithms.HmacSha256Signature),
         };

src/Client/Services/Authentication/SessionManagerService.cs

@@ -77,6 +77,7 @@ private void Authenticate(AuthenticateResponse authentication)
     {
         // Store token on http client so all future requests use the token.
         _http.DefaultRequestHeaders.Authorization = new AuthenticationHeaderValue("bearer", authentication.Token);
+        Console.WriteLine($"setting bearer to {_http.DefaultRequestHeaders.Authorization}");
         IsAuthenticated = true;
         Username = authentication.Username;
         AuthenticationStateChanged?.Invoke(this, new AuthenticationEventArgs { State = authentication, });

src/Client/Shared/FetchData.razor

@@ -63,6 +63,7 @@ else
     /// </summary>
     public async Task Fetch(string url)
     {
+        Console.WriteLine($"fetching with {_http.DefaultRequestHeaders.Authorization}");
         HttpResponseMessage response = await _http.GetAsync(url);
 
         if (!response.IsSuccessStatusCode)

src/Client/Shared/MainLayout.razor

@@ -1,9 +1,11 @@
-@using Application.Users
-@using Client.Services.Authentication
+@using System.Timers
 @inherits LayoutComponentBase
-@inject ISessionService _session
+@inject IJSRuntime Js
+@inject HttpClient Http
+@inject ISessionService Session
+@inject NavigationManager NavigationManager
 
-<CascadingValue Value="@_session" Name="Session">
+<CascadingValue Value="@Session" Name="Session">
     <ThemeProvider Theme="@_theme">
         <div class="page">
             <main>
@@ -35,9 +37,34 @@
         IsRounded = true,
     };
 
+        private const int InactivityLogoutMilliseconds = 1000 * 60 * 15; // 15 minutes
+
+    private readonly Timer _timer = new(InactivityLogoutMilliseconds);
+
     /// <inheritdoc />
     protected override async Task OnInitializedAsync()
     {
-        await _session.TryResumeAsync();
+        await Session.TryResumeAsync();
+
+        _timer.Elapsed += LogOut;
+        _timer.AutoReset = false;
+
+        // Register JS-callbacks on the document that call ResetTimer when triggered.
+        await Js.InvokeVoidAsync("registerActivityCallback", DotNetObjectReference.Create(this));
+    }
+
+    /// <summary>
+    /// Resets the inactivity timer. Call when user has shown signs of activity.
+    /// </summary>
+    [JSInvokable]
+    public void ResetTimer()
+    {
+        _timer.Stop();
+        _timer.Start();
+    }
+
+    private void LogOut(object? sender, ElapsedEventArgs elapsedEventArgs)
+    {
+        InvokeAsync(async () => await Session.EndAsync());
     }
 }

src/Client/wwwroot/js/interop.js

@@ -8,3 +8,12 @@ function focusElement(selector) {
     const element = document.querySelector(selector);
     element.focus();
 }
+
+function registerActivityCallback(dotNetHelper) {
+    document.onmousemove = resetTimeDelay;
+    document.onkeydown = resetTimeDelay;
+
+    function resetTimeDelay() {
+        dotNetHelper.invokeMethodAsync("ResetTimer");
+    }
+}

src/Server/Program.cs

@@ -60,6 +60,12 @@
 builder.Services.AddControllers()
        .AddNewtonsoftJson();
 
+builder.Services.AddHttpLogging(logging =>
+{
+    logging.RequestHeaders.Add("authorization");
+    logging.ResponseHeaders.Add("WWW-Authenticate");
+});
+
 WebApplication app = builder.Build();
 
 // Configure the HTTP request pipeline.