auth

src/Interlinked.Core/App.razor

@@ -1,5 +1,6 @@
 <Router AppAssembly="@typeof(App).Assembly">
     <Found Context="routeData">
+        <AuthenticateUser />
         <RouteView RouteData="@routeData" DefaultLayout="@typeof(MainLayout)" />
         <FocusOnNavigate RouteData="@routeData" Selector="h1" />
     </Found>

src/Interlinked.Core/Pages/Login.razor

@@ -40,7 +40,15 @@
     public LoginModel Model { get; set; } = new();
     public string ValidationMsg = string.Empty;
 
-    protected override void OnInitialized() => Model ??= new();
+    protected async override Task OnInitializedAsync()
+    {
+        if (await usr.GetUser() != null)
+        {
+            nav.NavigateTo("/");
+            return;
+        }
+        Model ??= new();
+    }
 
     private async Task Submit()
     {
@@ -56,7 +64,7 @@
                 this.StateHasChanged();
                 return;
             }
-            usr.User = user;
+            usr.SetUser(user);
             this.StateHasChanged();
             nav.NavigateTo("/");
             return;

src/Interlinked.Core/Pages/Logout.razor

@@ -10,7 +10,7 @@
         var resp = await req.GetAsync("/api/auth/logout");
         if (resp.StatusCode == HttpStatusCode.NoContent)
         {
-            usr.User = null!;
+            usr.SetUser(null!);
         }
         nav.NavigateTo("/login");
     }

src/Interlinked.Core/Pages/Register.razor

@@ -52,7 +52,15 @@
     public LoginModel Model { get; set; } = new();
     public string ValidationMsg = string.Empty;
 
-    protected override void OnInitialized() => Model ??= new();
+    protected override async Task OnInitializedAsync()
+    {
+        if (await usr.GetUser() != null)
+        {
+            nav.NavigateTo("/");
+            return;
+        }
+        Model ??= new();
+    }
 
     private async Task Submit()
     {
@@ -67,7 +75,7 @@
                 this.StateHasChanged();
                 return;
             }
-            usr.User = user;
+            usr.SetUser(user);
             this.StateHasChanged();
             nav.NavigateTo("/");
             return;

src/Interlinked.Core/Program.cs

@@ -27,8 +27,6 @@ internal class Program
 
         var app = builder.Build();
 
-        await app.Services.GetRequiredService<UserManager>().InitAsync();
-
         await builder.Build().RunAsync();
     }
 }

src/Interlinked.Core/Services/UserManager.cs

@@ -16,6 +16,8 @@ public class UserManager
     }
 
     private readonly IServiceProvider _serv;
+    private bool _init = false;
+    static SemaphoreSlim sem = new SemaphoreSlim(1, 1);
 
 
     public async Task InitAsync()
@@ -24,11 +26,30 @@ public class UserManager
         var resp = await scope.ServiceProvider.GetRequiredService<HttpClient>().GetAsync("/api/auth/userdata");
         if (resp.StatusCode == HttpStatusCode.OK)
         {
-            User = (await resp.Content.ReadFromJsonAsync<UserModel>())!;
+            this.User = (await resp.Content.ReadFromJsonAsync<UserModel>())!;
             Console.WriteLine($"User: {User.Id}");
         }
     }
 
-    public UserModel User { get; set; } = default!;
+    private UserModel User { get; set; } = default!;
+    public async Task<UserModel?> GetUser()
+    {
+        if (User == null)
+        {
+            await sem.WaitAsync();
+            if (!_init)
+            {
+                await InitAsync();
+            }
+            sem.Release();
+        }
+
+        return User;
+    }
+
+    public void SetUser(UserModel u)
+    {
+        User = u;
+    }
     public bool IsAuthorized => User != null;
 }

src/Interlinked.Core/Shared/AuthenticateUser.razor

@@ -0,0 +1,10 @@
+@inject UserManager usr
+
+@code {
+    protected override async Task OnInitializedAsync()
+    {
+        await Task.Yield();
+        await usr.InitAsync();
+        this.StateHasChanged();
+    }
+}

src/Interlinked.Core/Shared/MainLayout.razor

@@ -15,7 +15,7 @@
             }
             else
             {
-                <a href="/logout">Log out (@usr.User.Username)</a>
+                <a href="/logout">Log out (@u?.Username)</a>
             }
         </div>
 
@@ -26,9 +26,10 @@
 </div>
 
 @code {
+    private UserModel u;
     protected override async Task OnInitializedAsync()
     {
-        Console.WriteLine($"meow: {usr.IsAuthorized}");
-        Console.WriteLine($"Meow: {usr.User.Id}");
+        await Task.Yield();
+        u = await usr.GetUser()!;
     }
 }