refactor: consolidate project structure by migrating authentication, identity, and shared UI components while removing legacy Web Client files.

2026-04-28 20:23:40 +02:00
parent 131981992c
commit 10efed0369
124 changed files with 2822 additions and 2213 deletions
@@ -0,0 +1,81 @@
+using System.Security.Claims;
+using System.Text.Json;
+using Microsoft.AspNetCore.Components.Authorization;
+using NexusReader.Application.Abstractions.Services;
+
+namespace NexusReader.UI.Shared.Services;
+
+public class NexusAuthenticationStateProvider : AuthenticationStateProvider
+{
+    private readonly INativeStorageService _storageService;
+    private const string TokenKey = "nexus_auth_token";
+
+    public NexusAuthenticationStateProvider(INativeStorageService storageService)
+    {
+        _storageService = storageService;
+    }
+
+    public override async Task<AuthenticationState> GetAuthenticationStateAsync()
+    {
+        try
+        {
+            var result = await _storageService.GetSecureString(TokenKey);
+            var token = result.IsSuccess ? result.Value : null;
+
+            if (string.IsNullOrWhiteSpace(token))
+            {
+                return new AuthenticationState(new ClaimsPrincipal(new ClaimsIdentity()));
+            }
+
+            var identity = new ClaimsIdentity(ParseClaimsFromJwt(token), "jwt");
+            var user = new ClaimsPrincipal(identity);
+
+            return new AuthenticationState(user);
+        }
+        catch (Exception)
+        {
+            return new AuthenticationState(new ClaimsPrincipal(new ClaimsIdentity()));
+        }
+    }
+
+    public void NotifyUserAuthentication(string token)
+    {
+        var identity = new ClaimsIdentity(ParseClaimsFromJwt(token), "jwt");
+        var user = new ClaimsPrincipal(identity);
+        var authState = Task.FromResult(new AuthenticationState(user));
+        NotifyAuthenticationStateChanged(authState);
+    }
+
+    public void NotifyUserLogout()
+    {
+        var guest = new ClaimsPrincipal(new ClaimsIdentity());
+        var authState = Task.FromResult(new AuthenticationState(guest));
+        NotifyAuthenticationStateChanged(authState);
+    }
+
+    private IEnumerable<Claim> ParseClaimsFromJwt(string jwt)
+    {
+        var claims = new List<Claim>();
+        var payload = jwt.Split('.')[1];
+
+        var jsonBytes = ParseBase64WithoutPadding(payload);
+        var keyValuePairs = JsonSerializer.Deserialize<Dictionary<string, object>>(jsonBytes);
+
+        if (keyValuePairs != null)
+        {
+            claims.AddRange(keyValuePairs.Select(kvp => new Claim(kvp.Key, kvp.Value.ToString() ?? string.Empty)));
+        }
+
+        return claims;
+    }
+
+    private byte[] ParseBase64WithoutPadding(string base64)
+    {
+        switch (base64.Length % 4)
+        {
+            case 2: base64 += "=="; break;
+            case 3: base64 += "="; break;
+        }
+        return Convert.FromBase64String(base64);
+    }
+}