Добавьте файлы проекта.

2026-04-13 14:16:44 +03:00
parent b2b5a3945a
commit 37c997dbe0
120 changed files with 5364 additions and 0 deletions
--- a/PlaylistShared.PWA2123/Services/AuthStateProvider.cs
+++ b/PlaylistShared.PWA2123/Services/AuthStateProvider.cs
@@ -0,0 +1,99 @@
+using System.Net.Http.Headers;
+using System.Security.Claims;
+
+namespace PlaylistShared.PWA.Services;
+
+public class AuthStateProvider : AuthenticationStateProvider, IDisposable
+{
+    private readonly TokenStorage _tokenStorage;
+    private readonly ApiClient _apiClient;
+    private readonly HttpClient _http;
+    private Timer? _refreshTimer;
+    private ClaimsPrincipal _currentUser = new(new ClaimsIdentity());
+
+    public AuthStateProvider(TokenStorage tokenStorage, ApiClient apiClient, HttpClient http)
+    {
+        _tokenStorage = tokenStorage;
+        _apiClient = apiClient;
+        _http = http;
+    }
+
+    public override async Task<AuthenticationState> GetAuthenticationStateAsync()
+    {
+        var (token, refreshToken) = await _tokenStorage.GetTokensAsync();
+        if (string.IsNullOrEmpty(token))
+            return new AuthenticationState(_currentUser);
+
+        var principal = ParseToken(token);
+        if (principal == null)
+            return new AuthenticationState(_currentUser);
+
+        _currentUser = principal;
+        _http.DefaultRequestHeaders.Authorization = new AuthenticationHeaderValue("Bearer", token);
+        ScheduleTokenRefresh(token, refreshToken);
+        return new AuthenticationState(principal);
+    }
+
+    public async Task MarkUserAsAuthenticated(string token, string refreshToken)
+    {
+        await _tokenStorage.SetTokensAsync(token, refreshToken);
+        var principal = ParseToken(token);
+        _currentUser = principal ?? new ClaimsPrincipal(new ClaimsIdentity());
+        _http.DefaultRequestHeaders.Authorization = new AuthenticationHeaderValue("Bearer", token);
+        NotifyAuthenticationStateChanged(GetAuthenticationStateAsync());
+    }
+
+    public async Task MarkUserAsLoggedOut()
+    {
+        await _tokenStorage.ClearTokensAsync();
+        _currentUser = new ClaimsPrincipal(new ClaimsIdentity());
+        _http.DefaultRequestHeaders.Authorization = null;
+        NotifyAuthenticationStateChanged(GetAuthenticationStateAsync());
+    }
+
+    private ClaimsPrincipal? ParseToken(string token)
+    {
+        try
+        {
+            var handler = new JwtSecurityTokenHandler();
+            var jwt = handler.ReadJwtToken(token);
+            var identity = new ClaimsIdentity(jwt.Claims, "jwt");
+            return new ClaimsPrincipal(identity);
+        }
+        catch
+        {
+            return null;
+        }
+    }
+
+    private void ScheduleTokenRefresh(string token, string? refreshToken)
+    {
+        var handler = new JwtSecurityTokenHandler();
+        var jwt = handler.ReadJwtToken(token);
+        var expiresAt = jwt.ValidTo;
+        var timeToExpiry = expiresAt - DateTime.UtcNow;
+        var refreshTime = timeToExpiry - TimeSpan.FromMinutes(5);
+
+        if (refreshTime > TimeSpan.Zero && !string.IsNullOrEmpty(refreshToken))
+        {
+            _refreshTimer?.Dispose();
+            _refreshTimer = new Timer(async _ =>
+            {
+                try
+                {
+                    var newToken = await _apiClient.RefreshTokenAsync(refreshToken);
+                    if (newToken != null)
+                        await MarkUserAsAuthenticated(newToken.Token, newToken.RefreshToken);
+                    else
+                        await MarkUserAsLoggedOut();
+                }
+                catch
+                {
+                    await MarkUserAsLoggedOut();
+                }
+            }, null, (int)refreshTime.TotalMilliseconds, Timeout.Infinite);
+        }
+    }
+
+    public void Dispose() => _refreshTimer?.Dispose();
+}