Implementing AuthDataCache

DotBased.ASP.Auth/AuthDataCache.cs

@@ -0,0 +1,91 @@
+using System.Collections.ObjectModel;
+using DotBased.ASP.Auth.Domains.Auth;
+
+namespace DotBased.ASP.Auth;
+
+public class AuthDataCache
+{
+    public AuthDataCache(IAuthDataRepository dataRepository, BasedAuthConfiguration configuration)
+    {
+        DataRepository = dataRepository;
+        _configuration = configuration;
+    }
+
+    public readonly IAuthDataRepository DataRepository;
+    private readonly BasedAuthConfiguration _configuration;
+
+    private readonly CacheNodeCollection<AuthenticationStateModel> _authenticationStateCollection = [];
+
+    public Result PurgeSessionFromCache(string id) => _authenticationStateCollection.Remove(id) ? Result.Ok() : Result.Failed("Failed to purge session state from cache!");
+
+    public async Task<Result<AuthenticationStateModel>> RequestAuthStateAsync(string id)
+    {
+        if (_authenticationStateCollection.TryGetValue(id, out var node))
+        {
+            if (node.Object == null)
+            {
+                _authenticationStateCollection.Remove(id);
+                return Result<AuthenticationStateModel>.Failed($"Returned object is null, removing entry [{id}] from cache!");
+            }
+
+            if (node.IsValidLifespan(_configuration.CachedAuthSessionLifespan))
+                return Result<AuthenticationStateModel>.Ok(node.Object);
+        }
+        
+        var dbResult = await DataRepository.GetAuthenticationStateAsync(id);
+        if (!dbResult.Success || dbResult.Value == null)
+        {
+            _authenticationStateCollection.Remove(id);
+            return Result<AuthenticationStateModel>.Failed("Unknown session state!");
+        }
+
+        if (node == null)
+            node = new CacheNode<AuthenticationStateModel>(dbResult.Value);
+        else
+            node.UpdateObject(dbResult.Value);
+        if (node.Object != null)
+            return Result<AuthenticationStateModel>.Ok(node.Object);
+        return node.Object != null ? Result<AuthenticationStateModel>.Ok(node.Object) : Result<AuthenticationStateModel>.Failed("Failed to get db object!");
+    }
+
+    /*
+     *
+     */
+}
+
+public class CacheNode<T> where T : class
+{
+    public CacheNode(T obj)
+    {
+        Object = obj;
+    }
+    public T? Object { get; private set; }
+    public DateTime DateCached { get; private set; } = DateTime.Now;
+
+    public void UpdateObject(T obj)
+    {
+        Object = obj;
+        DateCached = DateTime.Now;
+    }
+
+    /// <summary>
+    /// Checks if the cached object is within the given lifespan.
+    /// </summary>
+    /// <param name="lifespan">The max. lifespan</param>
+    public bool IsValidLifespan(TimeSpan lifespan) => DateCached.Add(lifespan) < DateTime.Now;
+
+    public override bool Equals(object? obj)
+    {
+        if (obj is CacheNode<T> cacheObj)
+            return typeof(T).Equals(cacheObj.Object);
+        return false;
+    }
+
+    public override int GetHashCode() => typeof(T).GetHashCode();
+    public override string ToString() => typeof(T).ToString();
+}
+
+public class CacheNodeCollection<TItem> : KeyedCollection<string, CacheNode<TItem>> where TItem : class
+{
+    protected override string GetKeyForItem(CacheNode<TItem> item) => item.Object?.ToString() ?? string.Empty;
+}

DotBased.ASP.Auth/BasedAuthBuilder.cs

@@ -1,36 +0,0 @@
-using DotBased.ASP.Auth.Scheme;
-using DotBased.ASP.Auth.Services;
-using Microsoft.AspNetCore.Components.Authorization;
-using Microsoft.Extensions.DependencyInjection;
-
-namespace DotBased.ASP.Auth;
-
-public class BasedAuthBuilder
-{
-    public BasedAuthBuilder(IServiceCollection services, Action<BasedAuthConfiguration>? configurationAction = null)
-    {
-        _services = services;
-        Configuration = new BasedAuthConfiguration();
-        configurationAction?.Invoke(Configuration);
-        
-        services.AddSingleton<BasedAuthConfiguration>(Configuration);
-        if (Configuration.AuthDataProviderType == null)
-            throw new ArgumentNullException(nameof(Configuration.AuthDataProviderType), $"No '{nameof(IAuthDataProvider)}' configured!");
-        services.AddScoped(typeof(IAuthDataProvider), Configuration.AuthDataProviderType);
-        if (Configuration.SessionStateProviderType == null)
-            throw new ArgumentNullException(nameof(Configuration.SessionStateProviderType), $"No '{nameof(ISessionStateProvider)}' configured!");
-        services.AddScoped(typeof(ISessionStateProvider), Configuration.SessionStateProviderType);
-        
-        services.AddScoped<AuthService>();
-        
-        services.AddScoped<AuthenticationStateProvider, BasedServerAuthenticationStateProvider>();
-        services.AddAuthentication(options =>
-        {
-            options.DefaultScheme = BasedAuthenticationHandler.AuthenticationScheme;
-        }).AddScheme<BasedAuthenticationHandlerOptions, BasedAuthenticationHandler>(BasedAuthenticationHandler.AuthenticationScheme, null);
-        services.AddAuthorization();
-        services.AddCascadingAuthenticationState();
-    }
-    public BasedAuthConfiguration Configuration { get; }
-    private readonly IServiceCollection _services;
-}

DotBased.ASP.Auth/BasedAuthConfiguration.cs

@@ -25,14 +25,18 @@ public class BasedAuthConfiguration
     /// </summary>
     public TimeSpan AuthenticationStateMaxAgeBeforeExpire { get; set; } = TimeSpan.FromDays(7);
     /// <summary>
+    /// How long a session state will be cached (default: 15 min)
+    /// </summary>
+    public TimeSpan CachedAuthSessionLifespan { get; set; } = TimeSpan.FromMinutes(15);
+    /// <summary>
     /// Can be used to seed a default user and/or group for first time use.
     /// </summary>
-    public Action<IAuthDataProvider>? SeedData { get; set; }
+    public Action<IAuthDataRepository>? SeedData { get; set; }
 
-    public Type? AuthDataProviderType { get; private set; }
+    public Type? AuthDataRepositoryType { get; private set; }
 
-    public void SetDataProviderType<TDataProviderType>() where TDataProviderType : IAuthDataProvider =>
-        AuthDataProviderType = typeof(TDataProviderType);
+    public void SetDataRepositoryType<TDataProviderType>() where TDataProviderType : IAuthDataRepository =>
+        AuthDataRepositoryType = typeof(TDataProviderType);
 
     public Type? SessionStateProviderType { get; private set; }
 

DotBased.ASP.Auth/Domains/Auth/AuthenticationStateModel.cs

@@ -2,5 +2,15 @@ namespace DotBased.ASP.Auth.Domains.Auth;
 
 public class AuthenticationStateModel
 {
+    public string Id { get; set; } = string.Empty;
 
+    public override bool Equals(object? obj)
+    {
+        if (obj is AuthenticationStateModel authStateModel)
+            return authStateModel.Id == Id;
+        return false;
+    }
+    // ReSharper disable once NonReadonlyMemberInGetHashCode
+    public override int GetHashCode() => Id.GetHashCode();
+    public override string ToString() => Id;
 }

DotBased.ASP.Auth/DotBasedAuthDependencyInjection.cs

@@ -11,24 +11,23 @@ public static class DotBasedAuthDependencyInjection
     /// <summary>
     /// Use the DotBased authentication implementation
     /// </summary>
-    /// <remarks>Use the app.UseAuthentication() and app.UseAuthorization()!</remarks>
+    /// <remarks>Use UseBasedServerAuth()!</remarks>
     /// <param name="services">Service collection</param>
     /// <param name="configurationAction">DotBased auth configuration</param>
     public static IServiceCollection AddBasedServerAuth(this IServiceCollection services, Action<BasedAuthConfiguration>? configurationAction = null)
     {
-        /*var authBuilder = new BasedAuthBuilder(services, configurationAction);
-        return authBuilder;*/
         var Configuration = new BasedAuthConfiguration();
         configurationAction?.Invoke(Configuration);
         
         services.AddSingleton<BasedAuthConfiguration>(Configuration);
-        if (Configuration.AuthDataProviderType == null)
-            throw new ArgumentNullException(nameof(Configuration.AuthDataProviderType), $"No '{nameof(IAuthDataProvider)}' configured!");
-        services.AddScoped(typeof(IAuthDataProvider), Configuration.AuthDataProviderType);
+        if (Configuration.AuthDataRepositoryType == null)
+            throw new ArgumentNullException(nameof(Configuration.AuthDataRepositoryType), $"No '{nameof(IAuthDataRepository)}' configured!");
+        services.AddScoped(typeof(IAuthDataRepository), Configuration.AuthDataRepositoryType);
         if (Configuration.SessionStateProviderType == null)
             throw new ArgumentNullException(nameof(Configuration.SessionStateProviderType), $"No '{nameof(ISessionStateProvider)}' configured!");
         services.AddScoped(typeof(ISessionStateProvider), Configuration.SessionStateProviderType);
 
+        services.AddSingleton<AuthDataCache>();
         services.AddScoped<AuthService>();
         
         services.AddScoped<AuthenticationStateProvider, BasedServerAuthenticationStateProvider>();
@@ -50,9 +49,9 @@ public static class DotBasedAuthDependencyInjection
         var authConfig = app.Services.GetService<BasedAuthConfiguration>();
         if (authConfig == null)
             throw new NullReferenceException($"{nameof(BasedAuthConfiguration)} is null!");
-        if (authConfig.AuthDataProviderType == null)
-            throw new NullReferenceException($"{nameof(authConfig.AuthDataProviderType)} is null, cannot instantiate an instance of {nameof(IAuthDataProvider)}");
-        var dataProvider = (IAuthDataProvider?)Activator.CreateInstance(authConfig.AuthDataProviderType);
+        if (authConfig.AuthDataRepositoryType == null)
+            throw new NullReferenceException($"{nameof(authConfig.AuthDataRepositoryType)} is null, cannot instantiate an instance of {nameof(IAuthDataRepository)}");
+        var dataProvider = (IAuthDataRepository?)Activator.CreateInstance(authConfig.AuthDataRepositoryType);
         if (dataProvider != null) authConfig.SeedData?.Invoke(dataProvider);
 
         return app;

DotBased.ASP.Auth/IAuthDataRepository.cs

@@ -3,31 +3,18 @@ using DotBased.ASP.Auth.Domains.Identity;
 
 namespace DotBased.ASP.Auth;
 
-public interface IAuthDataProvider
+public interface IAuthDataRepository
 {
-    /*
-     * Identity
-     */
-    
-    // User
     public Task<Result> CreateUserAsync(UserModel user);
     public Task<Result> UpdateUserAsync(UserModel user);
     public Task<Result> DeleteUserAsync(UserModel user);
     public Task<Result<UserModel>> GetUserAsync(string id, string email, string username);
     public Task<ListResult<UserItemModel>> GetUsersAsync(int start = 0, int amount = 30, string search = "");
-
-    // Group
     public Task<Result> CreateGroupAsync(GroupModel group);
     public Task<Result> UpdateGroupAsync(GroupModel group);
     public Task<Result> DeleteGroupAsync(GroupModel group);
     public Task<Result<GroupModel>> GetGroupAsync(string id);
     public Task<ListResult<GroupItemModel>> GetGroupsAsync(int start = 0, int amount = 30, string search = "");
-    
-    /*
-     * Auth
-     */
-    
-    // AuthenticationState
     public Task<Result> CreateAuthenticationStateAsync(AuthenticationStateModel authenticationState);
     public Task<Result> UpdateAuthenticationStateAsync(AuthenticationStateModel authenticationState);
     public Task<Result> DeleteAuthenticationStateAsync(AuthenticationStateModel authenticationState);

DotBased.ASP.Auth/MemoryAuthDataProvider.cs

@@ -1,83 +0,0 @@
-using DotBased.ASP.Auth.Domains.Auth;
-using DotBased.ASP.Auth.Domains.Identity;
-
-namespace DotBased.ASP.Auth;
-/// <summary>
-/// In memory data provider, for testing only!
-/// </summary>
-public class MemoryAuthDataProvider : IAuthDataProvider
-{
-    private Dictionary<string, UserModel> _userDict = [];
-    private Dictionary<string, GroupModel> _groupDict = [];
-    private Dictionary<string, AuthenticationStateModel> _authenticationDict = [];
-
-    public async Task<Result> CreateUserAsync(UserModel user)
-    {
-        throw new NotImplementedException();
-    }
-
-    public async Task<Result> UpdateUserAsync(UserModel user)
-    {
-        throw new NotImplementedException();
-    }
-
-    public async Task<Result> DeleteUserAsync(UserModel user)
-    {
-        throw new NotImplementedException();
-    }
-
-    public async Task<Result<UserModel>> GetUserAsync(string id, string email, string username)
-    {
-        throw new NotImplementedException();
-    }
-
-    public async Task<ListResult<UserItemModel>> GetUsersAsync(int start = 0, int amount = 30, string search = "")
-    {
-        throw new NotImplementedException();
-    }
-
-    public async Task<Result> CreateGroupAsync(GroupModel group)
-    {
-        throw new NotImplementedException();
-    }
-
-    public async Task<Result> UpdateGroupAsync(GroupModel group)
-    {
-        throw new NotImplementedException();
-    }
-
-    public async Task<Result> DeleteGroupAsync(GroupModel group)
-    {
-        throw new NotImplementedException();
-    }
-
-    public async Task<Result<GroupModel>> GetGroupAsync(string id)
-    {
-        throw new NotImplementedException();
-    }
-
-    public async Task<ListResult<GroupItemModel>> GetGroupsAsync(int start = 0, int amount = 30, string search = "")
-    {
-        throw new NotImplementedException();
-    }
-
-    public async Task<Result> CreateAuthenticationStateAsync(AuthenticationStateModel authenticationState)
-    {
-        throw new NotImplementedException();
-    }
-
-    public async Task<Result> UpdateAuthenticationStateAsync(AuthenticationStateModel authenticationState)
-    {
-        throw new NotImplementedException();
-    }
-
-    public async Task<Result> DeleteAuthenticationStateAsync(AuthenticationStateModel authenticationState)
-    {
-        throw new NotImplementedException();
-    }
-
-    public async Task<Result<AuthenticationStateModel>> GetAuthenticationStateAsync(string id)
-    {
-        throw new NotImplementedException();
-    }
-}

DotBased.ASP.Auth/MemoryAuthDataRepository.cs

@@ -0,0 +1,91 @@
+using System.Diagnostics.CodeAnalysis;
+using DotBased.ASP.Auth.Domains.Auth;
+using DotBased.ASP.Auth.Domains.Identity;
+
+namespace DotBased.ASP.Auth;
+/// <summary>
+/// In memory data provider, for testing only!
+/// </summary>
+[SuppressMessage("ReSharper", "CollectionNeverUpdated.Local")]
+public class MemoryAuthDataRepository : IAuthDataRepository
+{
+    private readonly List<UserModel> _userList = [];
+    private readonly List<GroupModel> _groupList = [];
+    private readonly List<AuthenticationStateModel> _authenticationStateList = [];
+    
+    public async Task<Result> CreateUserAsync(UserModel user)
+    {
+        if (_userList.Any(x => x.Id == user.Id || x.Email == user.Email))
+            return Result.Failed("User already exists.");
+        _userList.Add(user);
+        return Result.Ok();
+    }
+
+    public async Task<Result> UpdateUserAsync(UserModel user)
+    {
+        if (_userList.All(x => x.Id != user.Id))
+            return Result.Failed("User does not exist!");
+        
+        return Result.Ok();
+    }
+
+    public Task<Result> DeleteUserAsync(UserModel user)
+    {
+        throw new NotImplementedException();
+    }
+
+    public Task<Result<UserModel>> GetUserAsync(string id, string email, string username)
+    {
+        throw new NotImplementedException();
+    }
+
+    public Task<ListResult<UserItemModel>> GetUsersAsync(int start = 0, int amount = 30, string search = "")
+    {
+        throw new NotImplementedException();
+    }
+
+    public Task<Result> CreateGroupAsync(GroupModel group)
+    {
+        throw new NotImplementedException();
+    }
+
+    public Task<Result> UpdateGroupAsync(GroupModel group)
+    {
+        throw new NotImplementedException();
+    }
+
+    public Task<Result> DeleteGroupAsync(GroupModel group)
+    {
+        throw new NotImplementedException();
+    }
+
+    public Task<Result<GroupModel>> GetGroupAsync(string id)
+    {
+        throw new NotImplementedException();
+    }
+
+    public Task<ListResult<GroupItemModel>> GetGroupsAsync(int start = 0, int amount = 30, string search = "")
+    {
+        throw new NotImplementedException();
+    }
+
+    public Task<Result> CreateAuthenticationStateAsync(AuthenticationStateModel authenticationState)
+    {
+        throw new NotImplementedException();
+    }
+
+    public Task<Result> UpdateAuthenticationStateAsync(AuthenticationStateModel authenticationState)
+    {
+        throw new NotImplementedException();
+    }
+
+    public Task<Result> DeleteAuthenticationStateAsync(AuthenticationStateModel authenticationState)
+    {
+        throw new NotImplementedException();
+    }
+
+    public Task<Result<AuthenticationStateModel>> GetAuthenticationStateAsync(string id)
+    {
+        throw new NotImplementedException();
+    }
+}

DotBased.ASP.Auth/Services/AuthService.cs

@@ -7,20 +7,20 @@ namespace DotBased.ASP.Auth.Services;
 
 public class AuthService
 {
-    public AuthService(IAuthDataProvider dataProvider)
+    public AuthService(AuthDataCache dataCache)
     {
-        _dataProvider = dataProvider;
+        _dataCache = dataCache;
         _logger = LogService.RegisterLogger(typeof(AuthService));
     }
 
-    private readonly IAuthDataProvider _dataProvider;
+    private readonly AuthDataCache _dataCache;
     private readonly ILogger _logger;
 
     public async Task<Result<AuthenticationStateModel>> LoginAsync(LoginModel login)
     {
         if (login.UserName.IsNullOrWhiteSpace())
             return Result<AuthenticationStateModel>.Failed("Username argument is empty!");
-        var userResult = await _dataProvider.GetUserAsync(string.Empty, login.Email, login.UserName);
+        //var userResult = await _dataProvider.GetUserAsync(string.Empty, login.Email, login.UserName);
         //TODO: validate user password and create a session state
         return Result<AuthenticationStateModel>.Failed("");
     }
@@ -29,7 +29,7 @@ public class AuthService
     {
         if (state.IsNullOrWhiteSpace())
             return Result.Failed($"Argument {nameof(state)} is empty!");
-        var stateResult = await _dataProvider.GetAuthenticationStateAsync(state);
+        /*var stateResult = await _dataProvider.GetAuthenticationStateAsync(state);
         if (!stateResult.Success || stateResult.Value == null)
             return stateResult;
         var authState = stateResult.Value;
@@ -38,6 +38,7 @@ public class AuthService
         var updatedStateResult = await _dataProvider.UpdateAuthenticationStateAsync(authState);
         if (updatedStateResult.Success) return updatedStateResult;
         _logger.Warning(updatedStateResult.Message);
-        return updatedStateResult;
+        return updatedStateResult;*/
+        return Result.Failed($"Argument {nameof(state)} is empty!"); // <- TEMP
     }
 }