Directory.Build.props

@@ -1,6 +1,6 @@
 <Project>
   <PropertyGroup>
-    <Version>0.1.31</Version>
+    <Version>0.1.5</Version>
   </PropertyGroup>
 </Project>
 

Femto.Api/Auth/CookieSettings.cs

@@ -2,7 +2,6 @@ namespace Femto.Api.Auth;
 
 public class CookieSettings
 {
-    public SameSiteMode SameSite { get; set; }
+    public bool SameSite { get; set; }
     public bool Secure { get; set; }
-    public string? Domain { get; set; }
 }

Femto.Api/Auth/SessionAuthenticationHandler.cs

@@ -3,9 +3,8 @@ using System.Text.Encodings.Web;
 using Femto.Api.Sessions;
 using Femto.Common;
 using Femto.Modules.Auth.Application;
-using Femto.Modules.Auth.Application.Dto;
+using Femto.Modules.Auth.Application.Commands.ValidateSession;
-using Femto.Modules.Auth.Contracts;
+using Femto.Modules.Auth.Errors;
-using Femto.Modules.Auth.Models;
 using Microsoft.AspNetCore.Authentication;
 using Microsoft.Extensions.Options;
 
@@ -15,115 +14,41 @@ internal class SessionAuthenticationHandler(
     IOptionsMonitor<AuthenticationSchemeOptions> options,
     ILoggerFactory logger,
     UrlEncoder encoder,
-    IAuthService authService,
+    IAuthModule authModule,
-    CurrentUserContext currentUserContext
+    CurrentUserContext currentUserContext,
+    IOptions<CookieSettings> cookieOptions
 ) : AuthenticationHandler<AuthenticationSchemeOptions>(options, logger, encoder)
 {
     protected override async Task<AuthenticateResult> HandleAuthenticateAsync()
     {
-        Logger.LogDebug("{TraceId} Authenticating session", this.Context.TraceIdentifier);
+        var sessionId = this.Request.Cookies["session"];
-
+        if (string.IsNullOrWhiteSpace(sessionId))
-        var user = await this.TryAuthenticateWithSession();
-
-        if (user is null)
-            user = await this.TryAuthenticateWithRememberMeToken();
-
-        if (user is null)
             return AuthenticateResult.NoResult();
 
+        try
+        {
+            var result = await authModule.PostCommand(new ValidateSessionCommand(sessionId));
+
             var claims = new List<Claim>
             {
-            new(ClaimTypes.Name, user.Username),
+                new(ClaimTypes.Name, result.Username),
-            new("sub", user.Id.ToString()),
+                new("sub", result.UserId.ToString()),
-            new("user_id", user.Id.ToString()),
+                new("user_id", result.UserId.ToString()),
             };
 
-        claims.AddRange(user.Roles.Select(role => new Claim(ClaimTypes.Role, role.ToString())));
-
             var identity = new ClaimsIdentity(claims, this.Scheme.Name);
             var principal = new ClaimsPrincipal(identity);
-        currentUserContext.CurrentUser = new CurrentUser(
+
-            user.Id,
+            this.Context.SetSession(result.Session, cookieOptions.Value);
-            user.Username,
+            currentUserContext.CurrentUser = new CurrentUser(result.UserId, result.Username);
-            user.Roles.Contains(Role.SuperUser)
+
+            return AuthenticateResult.Success(
+                new AuthenticationTicket(principal, this.Scheme.Name)
             );
-
-        return AuthenticateResult.Success(new AuthenticationTicket(principal, this.Scheme.Name));
         }
-
+        catch (InvalidSessionError)
-    private async Task<UserInfo?> TryAuthenticateWithSession()
         {
-        var sessionId = this.Context.GetSessionId();
+            return AuthenticateResult.Fail("Invalid session");
-
-        if (sessionId is null)
-        {
-            Logger.LogDebug("{TraceId} SessionId was null ", this.Context.TraceIdentifier);
-            return null;
         }
-
-        var session = await authService.GetSession(sessionId);
-
-        if (session is null)
-        {
-            Logger.LogDebug("{TraceId} Loaded session was null ", this.Context.TraceIdentifier);
-            return null;
-        }
-
-        if (session.IsExpired)
-        {
-            Logger.LogDebug("{TraceId} Loaded session was expired ", this.Context.TraceIdentifier);
-            await authService.DeleteSession(sessionId);
-            this.Context.DeleteSession();
-            return null;
-        }
-
-        var user = await authService.GetUserWithId(session.UserId);
-
-        if (user is null)
-        {
-            await authService.DeleteSession(sessionId);
-            this.Context.DeleteSession();
-            return null;
-        }
-
-        if (session.ExpiresSoon)
-        {
-            session = await authService.CreateWeakSession(session.UserId);
-            this.Context.SetSession(session, user);
-        }
-
-        return user;
-    }
-
-    private async Task<UserInfo?> TryAuthenticateWithRememberMeToken()
-    {
-        /*
-         * load remember me from token
-         * if it is null, return null
-         * if it exists, validate it
-         * if it is valid, create a new weak session, return the user
-         * if it is almost expired, refresh it
-         */
-
-        var rememberMeToken = this.Context.GetRememberMeToken();
-
-        if (rememberMeToken is null)
-            return null;
-
-        var (user, newRememberMeToken) = await authService.GetUserWithRememberMeToken(
-            rememberMeToken
-        );
-
-        if (user is null)
-            return null;
-
-        var session = await authService.CreateWeakSession(user.Id);
-
-        this.Context.SetSession(session, user);
-
-        if (newRememberMeToken is not null)
-            this.Context.SetRememberMeToken(newRememberMeToken);
-
-        return user;
     }
 }

Femto.Api/Controllers/Auth/AuthController.cs

@@ -1,236 +1,45 @@
+using Femto.Api.Auth;
 using Femto.Api.Sessions;
-using Femto.Common;
 using Femto.Modules.Auth.Application;
-using Femto.Modules.Auth.Contracts;
+using Femto.Modules.Auth.Application.Commands.Login;
-using Microsoft.AspNetCore.Authorization;
+using Femto.Modules.Auth.Application.Commands.Register;
 using Microsoft.AspNetCore.Mvc;
+using Microsoft.Extensions.Options;
 
 namespace Femto.Api.Controllers.Auth;
 
 [ApiController]
 [Route("auth")]
-public class AuthController(ICurrentUserContext currentUserContext, IAuthService authService)
+public class AuthController(IAuthModule authModule, IOptions<CookieSettings> cookieSettings) : ControllerBase
-    : ControllerBase
 {
     [HttpPost("login")]
-    public async Task<ActionResult<LoginResponse>> Login(
+    public async Task<ActionResult<LoginResponse>> Login([FromBody] LoginRequest request)
-        [FromBody] LoginRequest request,
-        CancellationToken cancellationToken
-    )
     {
-        var result = await authService.AuthenticateUserCredentials(
+        var result = await authModule.PostCommand(
-            request.Username,
+            new LoginCommand(request.Username, request.Password)
-            request.Password,
-            cancellationToken
         );
 
-        if (result is null)
+        HttpContext.SetSession(result.Session, cookieSettings.Value);
-            return this.BadRequest();
 
-        var (user, session) = result;
+        return new LoginResponse(result.UserId, result.Username);
-
-        HttpContext.SetSession(session, user);
-
-        if (request.RememberMe)
-        {
-            var newRememberMeToken = await authService.CreateRememberMeToken(user.Id);
-            HttpContext.SetRememberMeToken(newRememberMeToken);
-        }
-
-        return new LoginResponse(user.Id, user.Username, user.Roles.Any(r => r == Role.SuperUser));
     }
 
     [HttpPost("register")]
-    public async Task<ActionResult<RegisterResponse>> Register(
+    public async Task<ActionResult<RegisterResponse>> Register([FromBody] RegisterRequest request)
-        [FromBody] RegisterRequest request,
-        CancellationToken cancellationToken
-    )
     {
-        var (user, session) = await authService.CreateUserWithCredentials(
+        var result = await authModule.PostCommand(
-            request.Username,
+            new RegisterCommand(request.Username, request.Password)
-            request.Password,
-            request.SignupCode,
-            cancellationToken
         );
 
-        HttpContext.SetSession(session, user);
+        HttpContext.SetSession(result.Session, cookieSettings.Value);
 
-        if (request.RememberMe)
+        return new RegisterResponse(result.UserId, result.Username);
-        {
-            var newRememberMeToken = await authService.CreateRememberMeToken(user.Id);
-            HttpContext.SetRememberMeToken(newRememberMeToken);
     }
 
-        return new RegisterResponse(
-            user.Id,
-            user.Username,
-            user.Roles.Any(r => r == Role.SuperUser)
-        );
-    }
-
-    [HttpPost("change-password")]
-    public async Task<ActionResult> ChangePassword(
-        [FromBody] ChangePasswordRequestBody req,
-        CancellationToken cancellationToken
-    )
-    {
-        if (currentUserContext.CurrentUser is not {} user)
-            return this.BadRequest();
-
-        // superuser do what superuser want
-        if (!user.IsSuperUser)
-        {
-            if (user.Id != req.UserId)
-                return this.BadRequest();
-
-            var session = await authService.GetSession(this.HttpContext.GetSessionId()!);
-
-            // require strong authentication to change password
-            // the user can re-enter their password
-            if (session is null || !session.IsStronglyAuthenticated)
-                return this.BadRequest();
-        }
-
-        await authService.ChangePassword(req.UserId, req.NewPassword, cancellationToken);
-
-        // TODO would be better do handle this from inside the auth service. maybe just have it happen in a post-save event handler?
-        await authService.InvalidateUserSessions(req.UserId, cancellationToken);
-
-        return this.Ok(new {});
-    }
-
-    [HttpPost("delete-current-session")]
-    public async Task<ActionResult> DeleteSessionV2()
-    {
-        var sessionId = HttpContext.GetSessionId();
-
-        if (sessionId is not null)
-        {
-            await authService.DeleteSession(sessionId);
-            HttpContext.DeleteSession();
-        }
-
-        var rememberMeToken = HttpContext.GetRememberMeToken();
-
-        if (rememberMeToken is not null)
-        {
-            await authService.DeleteRememberMeToken(rememberMeToken);
-            HttpContext.DeleteRememberMeToken();
-        }
-
-        return Ok(new { });
-    }
-
-    [Obsolete("use POST /auth/delete-current-session")]
     [HttpDelete("session")]
     public async Task<ActionResult> DeleteSession()
     {
-        var sessionId = HttpContext.GetSessionId();
+        HttpContext.Response.Cookies.Delete("session");
-
-        if (sessionId is not null)
-        {
-            await authService.DeleteSession(sessionId);
-            HttpContext.DeleteSession();
-        }
-
-        var rememberMeToken = HttpContext.GetRememberMeToken();
-
-        if (rememberMeToken is not null)
-        {
-            await authService.DeleteRememberMeToken(rememberMeToken);
-            HttpContext.DeleteRememberMeToken();
-        }
-
         return Ok(new { });
     }
-
-    [HttpGet("user/{userId}")]
-    [Authorize]
-    public async Task<ActionResult<GetUserInfoResult>> GetUserInfo(
-        Guid userId,
-        CancellationToken cancellationToken
-    )
-    {
-        var currentUser = currentUserContext.CurrentUser;
-
-        if (currentUser is null || currentUser.Id != userId)
-            return this.BadRequest();
-
-        var user = await authService.GetUserWithId(userId, cancellationToken);
-
-        if (user is null)
-            return this.BadRequest();
-
-        return new GetUserInfoResult(
-            user.Id,
-            user.Username,
-            user.Roles.Any(r => r == Role.SuperUser)
-        );
-    }
-
-    [Obsolete("use POST /auth/create-signup-code")]
-    [HttpPost("signup-codes")]
-    [Authorize(Roles = "SuperUser")]
-    public async Task<ActionResult> CreateSignupCode(
-        [FromBody] CreateSignupCodeRequest request,
-        CancellationToken cancellationToken
-    )
-    {
-        await authService.AddSignupCode(request.Code, request.Name, cancellationToken);
-
-        return Ok(new { });
-    }
-
-    [Obsolete("use GET /auth/list-signup-codes")]
-    [HttpGet("signup-codes")]
-    [Authorize(Roles = "SuperUser")]
-    public async Task<ActionResult<ListSignupCodesResult>> ListSignupCodes(
-        CancellationToken cancellationToken
-    )
-    {
-        var codes = await authService.GetSignupCodes(cancellationToken);
-
-        return new ListSignupCodesResult(
-            codes.Select(c => new SignupCodeDto(
-                c.Code,
-                c.Email,
-                c.Name,
-                c.RedeemedByUserId,
-                c.RedeemedByUsername,
-                c.ExpiresOn
-            ))
-        );
-    }
-
-    [HttpPost("create-signup-code")]
-    [Authorize(Roles = "SuperUser")]
-    public async Task<ActionResult> CreateSignupCodeV2(
-        [FromBody] CreateSignupCodeRequest request,
-        CancellationToken cancellationToken
-    )
-    {
-        await authService.AddSignupCode(request.Code, request.Name, cancellationToken);
-
-        return Ok(new { });
-    }
-
-    [HttpGet("list-signup-codes")]
-    [Authorize(Roles = "SuperUser")]
-    public async Task<ActionResult<ListSignupCodesResult>> ListSignupCodesV2(
-        CancellationToken cancellationToken
-    )
-    {
-        var codes = await authService.GetSignupCodes(cancellationToken);
-
-        return new ListSignupCodesResult(
-            codes.Select(c => new SignupCodeDto(
-                c.Code,
-                c.Email,
-                c.Name,
-                c.RedeemedByUserId,
-                c.RedeemedByUsername,
-                c.ExpiresOn
-            ))
-        );
-    }
 }

Femto.Api/Controllers/Auth/ChangePasswordRequestBody.cs

@@ -1,3 +0,0 @@
-namespace Femto.Api.Controllers.Auth;
-
-public record ChangePasswordRequestBody(Guid UserId, string NewPassword);

Femto.Api/Controllers/Auth/CreateSignupCodeRequest.cs

@@ -1,3 +0,0 @@
-namespace Femto.Api.Controllers.Auth;
-
-public record CreateSignupCodeRequest(string Code, string Email, string Name);

Femto.Api/Controllers/Auth/GetUserInfoResult.cs

@@ -1,3 +0,0 @@
-namespace Femto.Api.Controllers.Auth;
-
-public record GetUserInfoResult(Guid UserId, string Username, bool IsSuperUser);

Femto.Api/Controllers/Auth/ListSignupCodesResult.cs

@@ -1,14 +0,0 @@
-namespace Femto.Api.Controllers.Auth;
-
-public record ListSignupCodesResult(
-    IEnumerable<SignupCodeDto> SignupCodes
-);
-
-public record SignupCodeDto(
-    string Code,
-    string Email,
-    string Name,
-    Guid? RedeemingUserId,
-    string? RedeemingUsername,
-    DateTimeOffset? ExpiresOn
-);

Femto.Api/Controllers/Auth/LoginRequest.cs

@@ -1,3 +1,3 @@
 namespace Femto.Api.Controllers.Auth;
 
-public record LoginRequest(string Username, string Password, bool RememberMe);
+public record LoginRequest(string Username, string Password);

Femto.Api/Controllers/Auth/LoginResponse.cs

@@ -1,3 +1,3 @@
 namespace Femto.Api.Controllers.Auth;
 
-public record LoginResponse(Guid UserId, string Username, bool IsSuperUser);
+public record LoginResponse(Guid UserId, string Username);

Femto.Api/Controllers/Auth/RegisterRequest.cs

@@ -1,3 +1,3 @@
 namespace Femto.Api.Controllers.Auth;
 
-public record RegisterRequest(string Username, string Password, string SignupCode, bool RememberMe);
+public record RegisterRequest(string Username, string Password, string SignupCode, string? Email);

Femto.Api/Controllers/Auth/RegisterResponse.cs

@@ -1,3 +1,3 @@
 namespace Femto.Api.Controllers.Auth;
 
-public record RegisterResponse(Guid UserId, string Username, bool IsSuperUser);
+public record RegisterResponse(Guid UserId, string Username);

Femto.Api/Controllers/Media/MediaController.cs

@@ -1,7 +1,9 @@
 using Femto.Api.Controllers.Media.Dto;
 using Femto.Modules.Media.Application;
+using Femto.Modules.Media.Contracts;
 using Femto.Modules.Media.Contracts.LoadFile;
 using Femto.Modules.Media.Contracts.SaveFile;
+using MediatR;
 using Microsoft.AspNetCore.Authorization;
 using Microsoft.AspNetCore.Mvc;
 

Femto.Api/Controllers/Posts/Dto/AddPostCommentRequest.cs

@@ -1,3 +0,0 @@
-namespace Femto.Api.Controllers.Posts.Dto;
-
-public record AddPostCommentRequest(Guid AuthorId, string Content);

Femto.Api/Controllers/Posts/Dto/AddPostReactionRequest.cs

@@ -1,3 +0,0 @@
-namespace Femto.Api.Controllers.Posts.Dto;
-
-public record AddPostReactionRequest(string Emoji);

Femto.Api/Controllers/Posts/Dto/CreatePostResponse.cs

@@ -1,3 +1,3 @@
 namespace Femto.Api.Controllers.Posts.Dto;
 
-public record CreatePostResponse(PostDto Post);
+public record CreatePostResponse(Guid PostId);

Femto.Api/Controllers/Posts/Dto/DeletePostReactionRequest.cs

@@ -1,3 +0,0 @@
-namespace Femto.Api.Controllers.Posts.Dto;
-
-public record DeletePostReactionRequest(string Emoji);

Femto.Api/Controllers/Posts/Dto/GetAllPublicPostsResponse.cs

@@ -3,4 +3,4 @@ using JetBrains.Annotations;
 namespace Femto.Api.Controllers.Posts.Dto;
 
 [PublicAPI]
-public record LoadPostsResponse(IEnumerable<PostDto> Posts);
+public record GetAllPublicPostsResponse(IEnumerable<PostDto> Posts, Guid? Next);

Femto.Api/Controllers/Posts/Dto/GetPostResponse.cs

@@ -1,3 +0,0 @@
-namespace Femto.Api.Controllers.Posts.Dto;
-
-public record GetPostResponse(PostDto Post);

Femto.Api/Controllers/Posts/Dto/GetPublicPostsSearchParams.cs

@@ -3,4 +3,4 @@ using JetBrains.Annotations;
 namespace Femto.Api.Controllers.Posts.Dto;
 
 [PublicAPI]
-public record GetPublicPostsSearchParams(Guid? After, int? Amount, Guid? AuthorId, string? Author);
+public record GetPublicPostsSearchParams(Guid? From, int? Amount, Guid? AuthorId, string? Author);

Femto.Api/Controllers/Posts/Dto/PostCommentDto.cs

@@ -1,3 +0,0 @@
-namespace Femto.Api.Controllers.Posts.Dto;
-
-public record PostCommentDto(string Author, string Content, DateTimeOffset PostedOn);

Femto.Api/Controllers/Posts/Dto/PostDto.cs

@@ -8,21 +8,5 @@ public record PostDto(
     Guid PostId,
     string Content,
     IEnumerable<PostMediaDto> Media,
-    IEnumerable<PostReactionDto> Reactions,
+    DateTimeOffset CreatedAt
-    DateTimeOffset CreatedAt,
+);
-    IEnumerable<string> PossibleReactions,
-    IEnumerable<PostCommentDto> Comments
-)
-{
-    public static PostDto FromModel(Modules.Blog.Application.Queries.GetPosts.Dto.PostDto post) =>
-        new(
-            new PostAuthorDto(post.Author.AuthorId, post.Author.Username),
-            post.PostId,
-            post.Text,
-            post.Media.Select(m => new PostMediaDto(m.Url, m.Width, m.Height)),
-            post.Reactions.Select(r => new PostReactionDto(r.Emoji, r.AuthorName, r.ReactedOn)),
-            post.CreatedAt,
-            post.PossibleReactions,
-            post.Comments.Select(c => new PostCommentDto(c.Author, c.Content, c.PostedOn))
-        );
-}

Femto.Api/Controllers/Posts/Dto/PostReactionDto.cs

@@ -1,3 +0,0 @@
-namespace Femto.Api.Controllers.Posts.Dto;
-
-public record PostReactionDto(string Emoji, string AuthorName, DateTimeOffset ReactedOn);

Femto.Api/Controllers/Posts/PostsController.cs

@@ -1,11 +1,7 @@
 using Femto.Api.Controllers.Posts.Dto;
 using Femto.Common;
 using Femto.Modules.Blog.Application;
-using Femto.Modules.Blog.Application.Commands.AddPostComment;
-using Femto.Modules.Blog.Application.Commands.AddPostReaction;
-using Femto.Modules.Blog.Application.Commands.ClearPostReaction;
 using Femto.Modules.Blog.Application.Commands.CreatePost;
-using Femto.Modules.Blog.Application.Commands.DeletePost;
 using Femto.Modules.Blog.Application.Queries.GetPosts;
 using Microsoft.AspNetCore.Authorization;
 using Microsoft.AspNetCore.Mvc;
@@ -14,19 +10,18 @@ namespace Femto.Api.Controllers.Posts;
 
 [ApiController]
 [Route("posts")]
-public class PostsController(IBlogModule blogModule, ICurrentUserContext currentUserContext, IAuthorizationService auth)
+public class PostsController(IBlogModule blogModule, ICurrentUserContext currentUserContext) : ControllerBase
-    : ControllerBase
 {
     [HttpGet]
-    public async Task<ActionResult<LoadPostsResponse>> LoadPosts(
+    public async Task<ActionResult<GetAllPublicPostsResponse>> LoadPosts(
         [FromQuery] GetPublicPostsSearchParams searchParams,
         CancellationToken cancellationToken
     )
     {
-        var res = await blogModule.Query(
+        var res = await blogModule.PostQuery(
             new GetPostsQuery(currentUserContext.CurrentUser?.Id)
             {
-                After = searchParams.After,
+                From = searchParams.From,
                 Amount = searchParams.Amount ?? 20,
                 AuthorId = searchParams.AuthorId,
                 Author = searchParams.Author,
@@ -34,7 +29,16 @@ public class PostsController(IBlogModule blogModule, ICurrentUserContext current
             cancellationToken
         );
 
-        return new LoadPostsResponse(res.Posts.Select(PostDto.FromModel));
+        return new GetAllPublicPostsResponse(
+            res.Posts.Select(p => new PostDto(
+                new PostAuthorDto(p.Author.AuthorId, p.Author.Username),
+                p.PostId,
+                p.Text,
+                p.Media.Select(m => new PostMediaDto(m.Url, m.Width, m.Height)),
+                p.CreatedAt
+            )),
+            res.Next
+        );
     }
 
     [HttpPost]
@@ -44,7 +48,7 @@ public class PostsController(IBlogModule blogModule, ICurrentUserContext current
         CancellationToken cancellationToken
     )
     {
-        var post = await blogModule.Command(
+        var guid = await blogModule.PostCommand(
             new CreatePostCommand(
                 req.AuthorId,
                 req.Content,
@@ -59,96 +63,11 @@ public class PostsController(IBlogModule blogModule, ICurrentUserContext current
                             media.Height
                         )
                 ),
-                req.IsPublic,
+                req.IsPublic
-                currentUserContext.CurrentUser!
             ),
             cancellationToken
         );
 
-        return new CreatePostResponse(PostDto.FromModel(post));
+        return new CreatePostResponse(guid);
-    }
-
-    [HttpGet("{postId}")]
-    public async Task<ActionResult<GetPostResponse>> GetPost(
-        Guid postId,
-        CancellationToken cancellationToken
-    )
-    {
-        var result = await blogModule.Query(
-            new GetPostsQuery(postId, currentUserContext.CurrentUser?.Id),
-            cancellationToken
-        );
-
-        var post = result.Posts.SingleOrDefault();
-
-        if (post is null)
-            return NotFound();
-
-        return new GetPostResponse(PostDto.FromModel(post));
-    }
-
-    [HttpDelete("{postId}")]
-    [Authorize]
-    public async Task DeletePost(Guid postId, CancellationToken cancellationToken)
-    {
-        await blogModule.Command(
-            new DeletePostCommand(postId, currentUserContext.CurrentUser!.Id),
-            cancellationToken
-        );
-    }
-
-    [HttpPost("{postId}/reactions")]
-    [Authorize]
-    public async Task<ActionResult> AddPostReaction(
-        Guid postId,
-        [FromBody] AddPostReactionRequest request,
-        CancellationToken cancellationToken
-    )
-    {
-        var currentUser = currentUserContext.CurrentUser!;
-
-        await blogModule.Command(
-            new AddPostReactionCommand(postId, request.Emoji, currentUser.Id),
-            cancellationToken
-        );
-
-        return this.Ok();
-    }
-
-    [HttpDelete("{postId}/reactions")]
-    [Authorize]
-    public async Task<ActionResult> DeletePostReaction(
-        Guid postId,
-        [FromBody] DeletePostReactionRequest request,
-        CancellationToken cancellationToken
-    )
-    {
-        var currentUser = currentUserContext.CurrentUser!;
-
-        await blogModule.Command(
-            new ClearPostReactionCommand(postId, request.Emoji, currentUser.Id),
-            cancellationToken
-        );
-
-        return this.Ok();
-    }
-
-    [HttpPost("{postId}/comments")]
-    [Authorize]
-    public async Task<ActionResult> AddPostComment(
-        Guid postId,
-        [FromBody] AddPostCommentRequest request,
-        CancellationToken cancellationToken
-    )
-    {
-        if (currentUserContext.CurrentUser?.Id != request.AuthorId)
-            return this.BadRequest();
-        
-        await blogModule.Command(
-            new AddPostCommentCommand(postId, request.AuthorId, request.Content),
-            cancellationToken
-        );
-
-        return this.Ok();
     }
 }

Femto.Api/Program.cs

@@ -21,17 +21,6 @@ var builder = WebApplication.CreateBuilder(args);
 
 builder.Services.AddOpenApi();
 
-var loggerFactory = LoggerFactory.Create(b =>
-{
-    b.SetMinimumLevel(LogLevel.Information)
-        .AddConfiguration(builder.Configuration.GetSection("Logging"))
-        .AddConsole()
-        .AddDebug();
-});
-
-builder.Services.AddSingleton(loggerFactory);
-builder.Services.AddSingleton(typeof(ILogger<>), typeof(Logger<>));
-
 var connectionString = builder.Configuration.GetConnectionString("Database");
 if (connectionString is null)
     throw new Exception("no database connection string found");
@@ -44,9 +33,9 @@ if (blobStorageRoot is null)
 var eventBus = new EventBus(Channel.CreateUnbounded<IEvent>());
 builder.Services.AddHostedService(_ => eventBus);
 
-builder.Services.InitializeBlogModule(connectionString, eventBus, loggerFactory);
+builder.Services.InitializeBlogModule(connectionString, eventBus);
 builder.Services.InitializeMediaModule(connectionString, blobStorageRoot);
-builder.Services.InitializeAuthenticationModule(connectionString, eventBus, loggerFactory, TimeProvider.System);
+builder.Services.InitializeAuthenticationModule(connectionString, eventBus);
 
 builder.Services.AddScoped<CurrentUserContext, CurrentUserContext>();
 builder.Services.AddScoped<ICurrentUserContext>(s => s.GetRequiredService<CurrentUserContext>());

Femto.Api/Properties/launchSettings.json

@@ -14,7 +14,7 @@
       "commandName": "Project",
       "dotnetRunMessages": true,
       "launchBrowser": false,
-      "applicationUrl": "https://localhost:7269",
+      "applicationUrl": "https://0.0.0.0:7269;http://0.0.0.0:5181",
       "environmentVariables": {
         "ASPNETCORE_ENVIRONMENT": "Development"
       }

Femto.Api/Sessions/HttpContextSessionExtensions.cs

@@ -1,131 +1,37 @@
-using System.Text.Json;
 using Femto.Api.Auth;
 using Femto.Modules.Auth.Application.Dto;
-using Femto.Modules.Auth.Models;
-using Microsoft.Extensions.Options;
 
 namespace Femto.Api.Sessions;
 
-internal record SessionInfo(string? SessionId, Guid? UserId);
-
 internal static class HttpContextSessionExtensions
 {
-    private static readonly JsonSerializerOptions JsonOptions = new()
+    public static void SetSession(
+        this HttpContext httpContext,
+        Session session,
+        CookieSettings cookieSettings
+    )
     {
-        PropertyNamingPolicy = JsonNamingPolicy.CamelCase,
+        httpContext.Response.Cookies.Append(
-    };
+            "session",
-
+            session.SessionId,
-    public static string? GetSessionId(this HttpContext httpContext) =>
-        httpContext.Request.Cookies["sid"];
-
-    public static void SetSession(this HttpContext context, Session session, UserInfo user)
-    {
-        var cookieSettings = context.RequestServices.GetRequiredService<IOptions<CookieSettings>>();
-
-        context.Response.Cookies.Append(
-            "sid",
-            session.Id,
             new CookieOptions
             {
-                Path = "/",
-                IsEssential = true,
-                Domain = cookieSettings.Value.Domain,
                 HttpOnly = true,
-                Secure = cookieSettings.Value.Secure,
+                Secure = cookieSettings.Secure,
-                SameSite = cookieSettings.Value.SameSite,
+                SameSite = cookieSettings.SameSite ? SameSiteMode.Strict : SameSiteMode.Unspecified,
                 Expires = session.Expires,
             }
         );
 
-        context.Response.Cookies.Append(
+        httpContext.Response.Cookies.Append(
-            "user",
+            "hasSession",
-            JsonSerializer.Serialize(user, JsonOptions),
+            "true",
             new CookieOptions
             {
-                Path = "/",
+                Secure = cookieSettings.Secure,
-                Domain = cookieSettings.Value.Domain,
+                SameSite = cookieSettings.SameSite ? SameSiteMode.Strict : SameSiteMode.Unspecified,
-                IsEssential = true,
-                Secure = cookieSettings.Value.Secure,
-                SameSite = cookieSettings.Value.SameSite,
                 Expires = session.Expires,
             }
         );
     }
-
-    public static void DeleteSession(this HttpContext httpContext)
-    {
-        var cookieSettings = httpContext.RequestServices.GetRequiredService<
-            IOptions<CookieSettings>
-        >();
-
-        httpContext.Response.Cookies.Delete(
-            "sid",
-            new CookieOptions
-            {
-                Path = "/",
-                HttpOnly = true,
-                Domain = cookieSettings.Value.Domain,
-                IsEssential = true,
-                Secure = cookieSettings.Value.Secure,
-                SameSite = cookieSettings.Value.SameSite,
-                Expires = DateTimeOffset.UtcNow.AddDays(-1),
-            }
-        );
-
-        httpContext.Response.Cookies.Delete(
-            "user",
-            new CookieOptions
-            {
-                Path = "/",
-                Domain = cookieSettings.Value.Domain,
-                IsEssential = true,
-                Secure = cookieSettings.Value.Secure,
-                SameSite = cookieSettings.Value.SameSite,
-                Expires = DateTimeOffset.UtcNow.AddDays(-1),
-            }
-        );
-    }
-    
-    
-    public static RememberMeToken? GetRememberMeToken(this HttpContext httpContext) =>
-        httpContext.Request.Cookies["rid"] is { } code ? RememberMeToken.FromCode(code) : null;
-
-    public static void SetRememberMeToken(this HttpContext context, NewRememberMeToken token)
-    {
-        var cookieSettings = context.RequestServices.GetRequiredService<IOptions<CookieSettings>>();
-
-        context.Response.Cookies.Append(
-            "rid",
-            token.Code,
-            new CookieOptions
-            {
-                Path = "/",
-                IsEssential = true,
-                Domain = cookieSettings.Value.Domain,
-                HttpOnly = true,
-                Secure = cookieSettings.Value.Secure,
-                SameSite = cookieSettings.Value.SameSite,
-                Expires = token.Expires,
-            }
-        );
-    }
-
-    public static void DeleteRememberMeToken(this HttpContext context)
-    {
-        var cookieSettings = context.RequestServices.GetRequiredService<IOptions<CookieSettings>>();
-
-        context.Response.Cookies.Delete(
-            "rid",
-            new CookieOptions
-            {
-                Path = "/",
-                HttpOnly = true,
-                Domain = cookieSettings.Value.Domain,
-                IsEssential = true,
-                Secure = cookieSettings.Value.Secure,
-                SameSite = cookieSettings.Value.SameSite,
-                Expires = DateTimeOffset.UtcNow.AddDays(-1),
-            }
-        );
-    }
 }

Femto.Api/appsettings.json

@@ -3,9 +3,7 @@
   "Logging": {
     "LogLevel": {
       "Default": "Information",
-      "Femto": "Debug",
+      "Microsoft.AspNetCore": "Warning"
-      "Microsoft.AspNetCore": "Warning",
-      "Microsoft.EntityFrameworkCore": "Warning"
     }
   },
   "AllowedHosts": "*"

Femto.Common/ICurrentUserContext.cs

@@ -5,4 +5,4 @@ public interface ICurrentUserContext
     CurrentUser? CurrentUser { get; }
 }
 
-public record CurrentUser(Guid Id, string Username, bool IsSuperUser);
+public record CurrentUser(Guid Id, string Username);

Femto.Common/Infrastructure/DomainServiceExtensions.cs

@@ -12,7 +12,7 @@ public static class DomainServiceExtensions
         services.AddScoped<DbContext>(s => s.GetRequiredService<TContext>());
         services.AddTransient(
             typeof(IPipelineBehavior<,>),
-            typeof(DDDPipelineBehaviour<,>)
+            typeof(SaveChangesPipelineBehaviour<,>)
         );
         
     }

Femto.Common/Infrastructure/SaveChangesPipelineBehaviour.cs

@@ -5,10 +5,10 @@ using Microsoft.Extensions.Logging;
 
 namespace Femto.Common.Infrastructure;
 
-public class DDDPipelineBehaviour<TRequest, TResponse>(
+public class SaveChangesPipelineBehaviour<TRequest, TResponse>(
     DbContext context,
     IPublisher publisher,
-    ILogger<DDDPipelineBehaviour<TRequest, TResponse>> logger
+    ILogger<SaveChangesPipelineBehaviour<TRequest, TResponse>> logger
 ) : IPipelineBehavior<TRequest, TResponse>
     where TRequest : notnull
 {
@@ -18,12 +18,7 @@ public class DDDPipelineBehaviour<TRequest, TResponse>(
         CancellationToken cancellationToken
     )
     {
-        logger.LogDebug("handling request {Type}", typeof(TRequest).Name);
         var response = await next(cancellationToken);
-        
-        var hasChanges = context.ChangeTracker.HasChanges();
-        logger.LogDebug("request handled. Changes? {HasChanges}", hasChanges);
-        
         if (context.ChangeTracker.HasChanges())
         {
             await context.EmitDomainEvents(logger, publisher, cancellationToken);

Femto.Common/ScopeBinding.cs

@@ -1,26 +0,0 @@
-using Microsoft.Extensions.DependencyInjection;
-using Microsoft.Extensions.Logging;
-
-namespace Femto.Common;
-
-
-/// <summary>
-/// We use this to bind a scope to the request scope in the composition root
-/// Any scoped services provided by this subcontainer should be accessed via a ScopeBinding injected in the host
-/// </summary>
-/// <param name="scope"></param>
-public class ScopeBinding(IServiceScope scope) : IDisposable
-{
-    private IServiceScope Scope { get; } = scope;
-
-    public T GetService<T>()
-        where T : notnull
-    {
-        return this.Scope.ServiceProvider.GetRequiredService<T>();
-    }
-
-    public virtual void Dispose()
-    {
-        this.Scope.Dispose();
-    }
-}

Femto.Database/Migrations/20250518163039_InitSignupCode.sql

@@ -1,14 +0,0 @@
--- Migration: InitSignupCode
--- Created at: 18/05/2025 16:30:39
-
-CREATE TABLE authn.signup_code
-(
-    code              varchar(32) PRIMARY KEY,
-    recipient_email   TEXT        NOT NULL,
-    recipient_name    TEXT        NOT NULL,
-    created_at        TIMESTAMPTZ NOT NULL DEFAULT now(),
-    expires_at        TIMESTAMPTZ,
-    -- we don't make this a foreign key as we don't really need it for lookups,
-    -- and should the redeeming user delete be deleted, it's better that we keep the ID here
-    redeeming_user_id UUID
-);

Femto.Database/Migrations/20250518193113_AddUserRole.sql

@@ -1,9 +0,0 @@
--- Migration: AddUserRole
--- Created at: 18/05/2025 19:31:13
-
-CREATE TABLE authn.user_role 
-(
-    user_id uuid REFERENCES authn.user_identity(id),
-    role    int,
-    primary key (user_id, role)
-)

Femto.Database/Migrations/20250526220032_AddReactions.sql

@@ -1,13 +0,0 @@
--- Migration: AddReactions
--- Created at: 26/05/2025 22:00:32
-
-ALTER TABLE blog.post
-ADD COLUMN possible_reactions TEXT;
-
-CREATE TABLE blog.post_reaction
-(
-    post_id uuid REFERENCES blog.post(id),
-    author_id uuid REFERENCES blog.author(id),
-    emoji text not null,
-    primary key (post_id, author_id, emoji)
-);

Femto.Database/Migrations/20250529101346_SessionsRework.sql

@@ -1,13 +0,0 @@
--- Migration: addLongTermSessions
--- Created at: 29/05/2025 10:13:46
-
-DROP TABLE authn.user_session;
-
-CREATE TABLE authn.long_term_session
-(
-    id              serial PRIMARY KEY,
-    selector        varchar(16) NOT NULL,
-    hashed_verifier bytea       NOT NULL,
-    expires         timestamptz not null,
-    user_id         uuid REFERENCES authn.user_identity (id)
-);

Femto.Database/Migrations/20250719104200_AddInvalidateToLongTermSession.sql

@@ -1,5 +0,0 @@
--- Migration: AddInvalidateToLongTermSession
--- Created at: 19/07/2025 10:42:00
-
-ALTER TABLE authn.long_term_session
-ADD COLUMN is_invalidated BOOLEAN NOT NULL DEFAULT FALSE;

Femto.Database/Migrations/20250810152132_AddTimestampToReaction.sql

@@ -1,4 +0,0 @@
--- Migration: AddTimestampToReaction
--- Created at: 10/08/2025 15:21:32
-alter table blog.post_reaction
-add column created_at timestamptz;

Femto.Database/Migrations/20250810172242_AddCommentToPost.sql

@@ -1,11 +0,0 @@
--- Migration: AddCommentToPost
--- Created at: 10/08/2025 17:22:42
-
-CREATE TABLE blog.post_comment
-(
-    id uuid PRIMARY KEY,
-    post_id uuid REFERENCES blog.post(id),
-    author_id uuid REFERENCES blog.author(id),
-    content TEXT NOT NULL,
-    created_at TIMESTAMPTZ NOT NULL DEFAULT NOW()
-)

Femto.Database/Seed/TestDataSeeder.cs

@@ -14,7 +14,7 @@ public static class TestDataSeeder
         var id = Guid.Parse("0196960c-6296-7532-ba66-8fabb38c6ae0");
         var username = "johnbotris";
         var salt = new byte[32];
-        var password = "password"u8;
+        var password = "hunter2"u8;
         var hashInput = new byte[password.Length + salt.Length];
         password.CopyTo(hashInput);
         salt.CopyTo(hashInput, password.Length);
@@ -35,15 +35,14 @@ public static class TestDataSeeder
             ;
 
             INSERT INTO blog.post
-            (id, author_id, possible_reactions, content)
+            (id, author_id, content)
             VALUES
-            ('019691a0-48ed-7eba-b8d3-608e25e07d4b', @id, '["🍆", "🧢", "🧑🏾‍🎓", "🥕", "🕗"]', 'However, authors often misinterpret the zoology as a smothered advantage, when in actuality it feels more like a blindfold accordion. They were lost without the chastest puppy that composed their Santa.'),
+            ('019691a0-48ed-7eba-b8d3-608e25e07d4b', @id, 'However, authors often misinterpret the zoology as a smothered advantage, when in actuality it feels more like a blindfold accordion. They were lost without the chastest puppy that composed their Santa.'),
-            ('019691a0-4ace-7bb5-a8f3-e3362920eba0', @id, '["🍆", "🧢", "🧑🏾‍🎓", "🥕", "🕗"]', 'Extending this logic, a swim can hardly be considered a seasick duckling without also being a tornado. Some posit the whity voyage to be less than dippy.'),
+            ('019691a0-4ace-7bb5-a8f3-e3362920eba0', @id, 'Extending this logic, a swim can hardly be considered a seasick duckling without also being a tornado. Some posit the whity voyage to be less than dippy.'),
-            ('019691a0-4c3e-726f-b8f6-bcbaabe789ae', @id, '["🍆", "🧢", "🧑🏾‍🎓", "🥕", "🕗"]', 'Few can name a springless sun that isn''t a thudding Vietnam. The burn of a competitor becomes a frosted target.'),
+            ('019691a0-4c3e-726f-b8f6-bcbaabe789ae', @id,'Few can name a springless sun that isn''t a thudding Vietnam. The burn of a competitor becomes a frosted target.'),
-            ('019691a0-4dd3-7e89-909e-94a6fd19a05e', @id, '["🍆", "🧢", "🧑🏾‍🎓", "🥕", "🕗"]', 'Some unwitched marbles are thought of simply as currencies. A boundary sees a nepal as a chordal railway.')
+            ('019691a0-4dd3-7e89-909e-94a6fd19a05e', @id,'Some unwitched marbles are thought of simply as currencies. A boundary sees a nepal as a chordal railway.')
             ;
 
-
             INSERT INTO blog.post_media
             (id, post_id, url, ordering)
             VALUES
@@ -55,35 +54,10 @@ public static class TestDataSeeder
             ('019691b6-2608-7088-8110-f0f6e35fa633', '019691a0-4dd3-7e89-909e-94a6fd19a05e', 'https://www.pinclipart.com/picdir/big/535-5356059_big-transparent-chungus-png-background-big-chungus-clipart.png', 0)
             ;
 
-            INSERT INTO blog.post_reaction
-            (post_id, author_id, emoji)
-            VALUES
-            ('019691a0-48ed-7eba-b8d3-608e25e07d4b', @id, '🍆'),
-            ('019691a0-4ace-7bb5-a8f3-e3362920eba0', @id, '🍆'),
-            ('019691a0-4c3e-726f-b8f6-bcbaabe789ae', @id, '🧑🏾‍'),
-            ('019691a0-4c3e-726f-b8f6-bcbaabe789ae', @id, '🕗')
-            ;
-
-            INSERT INTO blog.post_comment
-            (id, post_id, author_id, content)
-            VALUES
-            ('9116da05-49eb-4053-9199-57f54f92e73a', '019691a0-48ed-7eba-b8d3-608e25e07d4b', @id, 'this is a comment!')
-            ;
-
             INSERT INTO authn.user_identity
             (id, username, password_hash, password_salt)
             VALUES
             (@id, @username, @passwordHash, @salt);
-            
-            INSERT INTO authn.user_role
-            (user_id, role)
-            VALUES
-            (@id, 1);
-
-            INSERT INTO authn.signup_code
-            (code, recipient_email, recipient_name, expires_at, redeeming_user_id)
-            VALUES
-            ('fickli', 'me@johnbotr.is', 'john', null, null);
             """
         );
         

Femto.Docs/Design/Auth/RememberMe.md

@@ -1,27 +0,0 @@
-# Remember me
-
-We want to implement long lived sessions
-
-we will do this with a remember me cookie
-
-this should be implemented as so:
-
-
-logging or registering and including a "rememberMe" flag with the request will generate a new remember me token, which can be stored as a cookie .
-
-the remember me token should live until:
-* the user changes password anywhere
-* the user logs out on that device
-* the user logs in with an expired session, in which case the remember me token will be used to refresh the session, and then it will be swapped out for a new one
-
-that means we need to implement three spots: 
-- [ ] login
-- [ ] register
-- [ ] validate session
-
-we will implement it as described [here](https://paragonie.com/blog/2015/04/secure-authentication-php-with-long-term-persistence)
-
-we will only check the remember me token in "validate session".
-
-"refresh session" is only called with valid sessions so we do not need to check it here, as the session should already have been validated
-

Femto.Docs/Design/Auth/strong_vs_weak_session.md

@@ -1,16 +0,0 @@
-# Strong vs weak sessions
-
-a **strong** session is one that should have the power to do account level admin tasks like change password
- 
-
-a **weak** session has strictly fewer privileges than a strong session
-
-## where to get a strong session
-
-a strong session is created when a user provides a username and a password. a session remains strong until it is refreshed, at which point it becomes weak.
-
-## where to get a weak session
-
-A weak session is any session that has not been directly created by user credentials, i.e.:
-* short-term session refresh
-* long-term session refresh

Femto.Modules.Auth.Contracts/Role.cs

@@ -1,7 +0,0 @@
-namespace Femto.Modules.Auth.Contracts;
-
-public enum Role
-{
-    User = 0,
-    SuperUser = 1,
-}

Femto.Modules.Auth/Application/AuthModule.cs

@@ -0,0 +1,17 @@
+using Femto.Common.Domain;
+using MediatR;
+using Microsoft.Extensions.DependencyInjection;
+using Microsoft.Extensions.Hosting;
+
+namespace Femto.Modules.Auth.Application;
+
+internal class AuthModule(IHost host) : IAuthModule
+{
+    public async Task<TResponse> PostCommand<TResponse>(ICommand<TResponse> command, CancellationToken cancellationToken = default)
+    {
+        using var scope = host.Services.CreateScope();
+        var mediator = scope.ServiceProvider.GetRequiredService<IMediator>();
+        var response = await mediator.Send(command, cancellationToken);
+        return response;
+    }
+}

Femto.Modules.Auth/Application/AuthService.cs

@@ -1,258 +0,0 @@
-using Dapper;
-using Femto.Common.Domain;
-using Femto.Common.Infrastructure.DbConnection;
-using Femto.Modules.Auth.Application.Dto;
-using Femto.Modules.Auth.Data;
-using Femto.Modules.Auth.Infrastructure;
-using Femto.Modules.Auth.Models;
-using Microsoft.EntityFrameworkCore;
-
-namespace Femto.Modules.Auth.Application;
-
-internal class AuthService(
-    AuthContext context,
-    SessionStorage sessionStorage,
-    IDbConnectionFactory connectionFactory
-) : IAuthService
-{
-    public async Task<UserAndSession?> AuthenticateUserCredentials(
-        string username,
-        string password,
-        CancellationToken cancellationToken = default
-    )
-    {
-        var user = await context
-            .Users.Where(u => u.Username == username)
-            .SingleOrDefaultAsync(cancellationToken);
-
-        if (user is null)
-            return null;
-
-        if (!user.HasPassword(password))
-            return null;
-
-        var session = new Session(user.Id, true);
-
-        await sessionStorage.AddSession(session);
-
-        return new(
-            new UserInfo(user.Id, user.Username, user.Roles.Select(r => r.Role).ToList()),
-            session
-        );
-    }
-
-    public Task<UserInfo?> GetUserWithId(Guid? userId, CancellationToken cancellationToken)
-    {
-        return context
-            .Users.Where(u => u.Id == userId)
-            .Select(u => new UserInfo(u.Id, u.Username, u.Roles.Select(r => r.Role).ToList()))
-            .SingleOrDefaultAsync(cancellationToken);
-    }
-
-    public async Task<Session> CreateNewSession(Guid userId)
-    {
-        var session = new Session(userId, true);
-
-        await sessionStorage.AddSession(session);
-
-        return session;
-    }
-
-    public async Task<Session> CreateWeakSession(Guid userId)
-    {
-        var session = new Session(userId, false);
-
-        await sessionStorage.AddSession(session);
-
-        return session;
-    }
-
-    public Task<Session?> GetSession(string sessionId)
-    {
-        return sessionStorage.GetSession(sessionId);
-    }
-
-    public async Task DeleteSession(string sessionId)
-    {
-        await sessionStorage.DeleteSession(sessionId);
-    }
-
-    public async Task<UserAndSession> CreateUserWithCredentials(
-        string username,
-        string password,
-        string signupCode,
-        CancellationToken cancellationToken = default
-    )
-    {
-        var now = DateTimeOffset.UtcNow;
-
-        var code = await context
-            .SignupCodes.Where(c => c.Code == signupCode)
-            .Where(c => c.ExpiresAt == null || c.ExpiresAt > now)
-            .Where(c => c.RedeemingUserId == null)
-            .SingleOrDefaultAsync(cancellationToken);
-
-        if (code is null)
-            throw new DomainError("invalid signup code");
-
-        var usernameTaken = await context.Users.AnyAsync(
-            u => u.Username == username,
-            cancellationToken
-        );
-
-        if (usernameTaken)
-            throw new DomainError("username taken");
-
-        var user = new UserIdentity(username);
-
-        await context.AddAsync(user, cancellationToken);
-
-        user.SetPassword(password);
-
-        code.Redeem(user.Id);
-
-        var session = new Session(user.Id, true);
-
-        await sessionStorage.AddSession(session);
-
-        await context.SaveChangesAsync(cancellationToken);
-
-        return new(new UserInfo(user), session);
-    }
-
-    public async Task AddSignupCode(
-        string code,
-        string recipientName,
-        CancellationToken cancellationToken
-    )
-    {
-        await context.SignupCodes.AddAsync(
-            new SignupCode("", recipientName, code),
-            cancellationToken
-        );
-
-        await context.SaveChangesAsync(cancellationToken);
-    }
-
-    public async Task<ICollection<SignupCodeDto>> GetSignupCodes(
-        CancellationToken cancellationToken = default
-    )
-    {
-        using var conn = connectionFactory.GetConnection();
-
-        // lang=sql
-        const string sql = """
-            SELECT 
-                sc.code as Code,
-                sc.recipient_email as Email,
-                sc.recipient_name as Name,
-                sc.redeeming_user_id as RedeemedByUserId,
-                u.username as RedeemedByUsername,
-                sc.expires_at as ExpiresOn
-            FROM authn.signup_code sc
-            LEFT JOIN authn.user_identity u ON u.id = sc.redeeming_user_id
-            ORDER BY sc.created_at DESC
-            """;
-
-        var result = await conn.QueryAsync<GetSignupCodesQueryResultRow>(sql, cancellationToken);
-
-        return result
-            .Select(row => new SignupCodeDto(
-                row.Code,
-                row.Email,
-                row.Name,
-                row.RedeemedByUserId,
-                row.RedeemedByUsername,
-                row.ExpiresOn
-            ))
-            .ToList();
-    }
-
-    public async Task<NewRememberMeToken> CreateRememberMeToken(Guid userId)
-    {
-        var (rememberMeToken, verifier) = LongTermSession.Create(userId);
-
-        await context.AddAsync(rememberMeToken);
-        await context.SaveChangesAsync();
-
-        return new(rememberMeToken.Selector, verifier, rememberMeToken.Expires);
-    }
-
-    public async Task<(UserInfo?, NewRememberMeToken?)> GetUserWithRememberMeToken(
-        RememberMeToken rememberMeToken
-    )
-    {
-        var token = await context.LongTermSessions.SingleOrDefaultAsync(t =>
-            t.Selector == rememberMeToken.Selector
-        );
-
-        if (token is null)
-            return (null, null);
-
-        if (!token.CheckVerifier(rememberMeToken.Verifier))
-            return (null, null);
-
-        var user = await context.Users.SingleOrDefaultAsync(u => u.Id == token.UserId);
-
-        if (user is null)
-            return (null, null);
-
-        if (token.ExpiresSoon)
-        {
-            var (newToken, verifier) = LongTermSession.Create(user.Id);
-            await context.AddAsync(newToken);
-            await context.SaveChangesAsync();
-
-            return (new(user), new(newToken.Selector, verifier, newToken.Expires));
-        }
-
-        return (new(user), null);
-    }
-
-    public async Task DeleteRememberMeToken(RememberMeToken rememberMeToken)
-    {
-        var session = await context.LongTermSessions.SingleOrDefaultAsync(s =>
-            s.Selector == rememberMeToken.Selector
-        );
-
-        if (session is null)
-            return;
-
-        if (!session.CheckVerifier(rememberMeToken.Verifier))
-            return;
-
-        context.Remove(session);
-        await context.SaveChangesAsync();
-    }
-
-    public async Task ChangePassword(Guid userId, string password, CancellationToken cancellationToken)
-    {
-        // change the password
-        // invalidate long term sessions
-        // invalidate sessions
-
-        var user = await context.Users.SingleOrDefaultAsync(u => u.Id == userId,cancellationToken);
-
-        if (user is null)
-            throw new DomainError("invalid user");
-
-        user.SetPassword(password);
-
-        await context.SaveChangesAsync(cancellationToken);
-    }
-
-    public async Task InvalidateUserSessions(Guid userId, CancellationToken cancellationToken)
-    {
-        await sessionStorage.InvalidateUserSessions(userId);
-    }
-
-    private class GetSignupCodesQueryResultRow
-    {
-        public string Code { get; set; }
-        public string Email { get; set; }
-        public string Name { get; set; }
-        public Guid? RedeemedByUserId { get; set; }
-        public string? RedeemedByUsername { get; set; }
-        public DateTimeOffset? ExpiresOn { get; set; }
-    }
-}

Femto.Modules.Auth/Application/AuthStartup.cs

@@ -1,6 +1,4 @@
-using Femto.Common;
 using Femto.Common.Infrastructure;
-using Femto.Common.Infrastructure.DbConnection;
 using Femto.Common.Infrastructure.Outbox;
 using Femto.Common.Integration;
 using Femto.Modules.Auth.Data;
@@ -16,81 +14,45 @@ namespace Femto.Modules.Auth.Application;
 
 public static class AuthStartup
 {
-    public static void InitializeAuthenticationModule(
+    public static void InitializeAuthenticationModule(this IServiceCollection rootContainer,
-        this IServiceCollection rootContainer,
+        string connectionString, IEventBus eventBus)
-        string connectionString,
-        IEventBus eventBus,
-        ILoggerFactory loggerFactory,
-        TimeProvider timeProvider
-    )
     {
         var hostBuilder = Host.CreateDefaultBuilder();
-
+        hostBuilder.ConfigureServices(services => ConfigureServices(services, connectionString, eventBus));
-        hostBuilder.ConfigureServices(services =>
-            ConfigureServices(services, connectionString, eventBus, loggerFactory, timeProvider)
-        );
-
         var host = hostBuilder.Build();
-
+        rootContainer.AddScoped<IAuthModule>(_ => new AuthModule(host));
-        rootContainer.AddKeyedScoped<ScopeBinding>(
-            "AuthServiceScope",
-            (s, o) =>
-            {
-                var scope = host.Services.CreateScope();
-                return new ScopeBinding(scope);
-            }
-        );
-
-        rootContainer.ExposeScopedService<IAuthService>();
-
         rootContainer.AddHostedService(services => new AuthApplication(host));
-        eventBus.Subscribe(
+        eventBus.Subscribe((evt, cancellationToken) => EventSubscriber(evt, host.Services, cancellationToken));
-            (evt, cancellationToken) => EventSubscriber(evt, host.Services, cancellationToken)
-        );
     }
 
-    private static void ConfigureServices(
+    private static void ConfigureServices(IServiceCollection services, string connectionString, IEventPublisher publisher)
-        IServiceCollection services,
-        string connectionString,
-        IEventPublisher publisher,
-        ILoggerFactory loggerFactory,
-        TimeProvider timeProvider
-    )
     {
-        services.AddSingleton(timeProvider);
-
-        services.AddTransient<IDbConnectionFactory>(_ => new DbConnectionFactory(connectionString));
-
         services.AddDbContext<AuthContext>(builder =>
         {
             builder.UseNpgsql(connectionString);
             builder.UseSnakeCaseNamingConvention();
-            builder.UseLoggerFactory(loggerFactory);
-            // #if DEBUG
-            // builder.EnableSensitiveDataLogging();
-            // #endif
         });
         
-        services.AddSingleton(loggerFactory);
-        services.AddSingleton(typeof(ILogger<>), typeof(Logger<>));
-
         services.AddQuartzHostedService(options =>
         {
             options.WaitForJobsToComplete = true;
         });
-        // #endif
+
         services.AddOutbox<AuthContext, OutboxMessageHandler>();
 
         services.AddMediatR(c => c.RegisterServicesFromAssembly(typeof(AuthStartup).Assembly));
 
+        services.AddDbContext<AuthContext>(builder =>
+        {
+            builder.UseNpgsql();
+            builder.UseSnakeCaseNamingConvention();
+            var loggerFactory = LoggerFactory.Create(b => { });
+            builder.UseLoggerFactory(loggerFactory);
+        });
+
         services.ConfigureDomainServices<AuthContext>();
 
         services.AddSingleton(publisher);
-        services.AddSingleton<SessionStorage>();
-
-        services.AddScoped(typeof(IPipelineBehavior<,>), typeof(SaveChangesPipelineBehaviour<,>));
-
-        services.AddScoped<IAuthService, AuthService>();
     }
     
     private static async Task EventSubscriber(
@@ -122,14 +84,3 @@ public static class AuthStartup
         }
     }
 }
-
-internal static class AuthServiceCollectionExtensions
-{
-    public static void ExposeScopedService<T>(this IServiceCollection container)
-        where T : class
-    {
-        container.AddScoped<T>(services =>
-            services.GetRequiredKeyedService<ScopeBinding>("AuthServiceScope").GetService<T>()
-        );
-    }
-}

Femto.Modules.Auth/Application/Commands/Login/LoginCommand.cs

@@ -0,0 +1,6 @@
+using Femto.Common.Domain;
+using Femto.Modules.Auth.Application.Dto;
+
+namespace Femto.Modules.Auth.Application.Commands.Login;
+
+public record LoginCommand(string Username, string Password) : ICommand<LoginResult>;

Femto.Modules.Auth/Application/Commands/Login/LoginCommandHandler.cs

@@ -0,0 +1,30 @@
+using Femto.Common.Domain;
+using Femto.Modules.Auth.Application.Dto;
+using Femto.Modules.Auth.Data;
+using Femto.Modules.Auth.Models;
+using MediatR;
+using Microsoft.EntityFrameworkCore;
+
+namespace Femto.Modules.Auth.Application.Commands.Login;
+
+internal class LoginCommandHandler(AuthContext context)
+    : ICommandHandler<LoginCommand, LoginResult>
+{
+    public async Task<LoginResult> Handle(LoginCommand request, CancellationToken cancellationToken)
+    {
+        var user = await context.Users.SingleOrDefaultAsync(
+            u => u.Username == request.Username,
+            cancellationToken
+        );
+
+        if (user is null)
+            throw new DomainError("invalid credentials");
+
+        if (!user.HasPassword(request.Password))
+            throw new DomainError("invalid credentials");
+        
+        var session = user.StartNewSession();
+
+        return new(new Session(session.Id, session.Expires), user.Id, user.Username);
+    }
+}

Femto.Modules.Auth/Application/Commands/Register/RegisterCommand.cs

@@ -0,0 +1,6 @@
+using Femto.Common.Domain;
+using Femto.Modules.Auth.Application.Dto;
+
+namespace Femto.Modules.Auth.Application.Commands.Register;
+
+public record RegisterCommand(string Username, string Password) : ICommand<RegisterResult>;

Femto.Modules.Auth/Application/Commands/Register/RegisterCommandHandler.cs

@@ -0,0 +1,22 @@
+using Femto.Common.Domain;
+using Femto.Modules.Auth.Application.Dto;
+using Femto.Modules.Auth.Data;
+using Femto.Modules.Auth.Models;
+
+namespace Femto.Modules.Auth.Application.Commands.Register;
+
+internal class RegisterCommandHandler(AuthContext context) : ICommandHandler<RegisterCommand, RegisterResult>
+{
+    public async Task<RegisterResult> Handle(RegisterCommand request, CancellationToken cancellationToken)
+    {
+        var user = new UserIdentity(request.Username);
+        
+        user.SetPassword(request.Password);
+
+        var session = user.StartNewSession();
+        
+        await context.AddAsync(user, cancellationToken);
+        
+        return new(new Session(session.Id, session.Expires), user.Id, user.Username);    
+    }
+}

Femto.Modules.Auth/Application/Commands/ValidateSession/ValidateSessionCommand.cs

@@ -0,0 +1,10 @@
+using Femto.Common.Domain;
+using Femto.Modules.Auth.Application.Dto;
+
+namespace Femto.Modules.Auth.Application.Commands.ValidateSession;
+
+/// <summary>
+/// Validate an existing session, and then return either the current session, or a new one in case the expiry is further in the future
+/// </summary>
+/// <param name="SessionId"></param>
+public record ValidateSessionCommand(string SessionId) : ICommand<ValidateSessionResult>;

Femto.Modules.Auth/Application/Commands/ValidateSession/ValidateSessionCommandHandler.cs

@@ -0,0 +1,35 @@
+using Femto.Common.Domain;
+using Femto.Modules.Auth.Application.Dto;
+using Femto.Modules.Auth.Data;
+using Femto.Modules.Auth.Errors;
+using Microsoft.EntityFrameworkCore;
+
+namespace Femto.Modules.Auth.Application.Commands.ValidateSession;
+
+internal class ValidateSessionCommandHandler(AuthContext context)
+    : ICommandHandler<ValidateSessionCommand, ValidateSessionResult>
+{
+    public async Task<ValidateSessionResult> Handle(
+        ValidateSessionCommand request,
+        CancellationToken cancellationToken
+    )
+    {
+        var now = DateTimeOffset.UtcNow;
+
+        var user = await context.Users.SingleOrDefaultAsync(
+            u => u.Sessions.Any(s => s.Id == request.SessionId && s.Expires > now),
+            cancellationToken
+        );
+
+        if (user is null)
+            throw new InvalidSessionError();
+
+        var session = user.PossiblyRefreshSession(request.SessionId);
+
+        return new ValidateSessionResult(
+            new Session(session.Id, session.Expires),
+            user.Id,
+            user.Username
+        );
+    }
+}

Femto.Modules.Auth/Application/Dto/LoginResult.cs

@@ -1,3 +1,3 @@
 namespace Femto.Modules.Auth.Application.Dto;
 
-public record LoginResult(SessionDto SessionDto, UserInfo User);
+public record LoginResult(Session Session, Guid UserId, string Username);

Femto.Modules.Auth/Application/Dto/RefreshUserSessionResult.cs

@@ -1,3 +0,0 @@
-namespace Femto.Modules.Auth.Application.Dto;
-
-public record RefreshUserSessionResult(SessionDto SessionDto, UserInfo User);

Femto.Modules.Auth/Application/Dto/RegisterResult.cs

@@ -1,3 +1,3 @@
 namespace Femto.Modules.Auth.Application.Dto;
 
-public record RegisterResult(SessionDto SessionDto, UserInfo User);
+public record RegisterResult(Session Session, Guid UserId, string Username);

Femto.Modules.Auth/Application/Dto/RememberMeToken.cs

@@ -1,18 +0,0 @@
-using Femto.Modules.Auth.Models;
-
-namespace Femto.Modules.Auth.Application.Dto;
-
-public record RememberMeToken(string Selector, string Verifier)
-{
-    public static RememberMeToken FromCode(string code)
-    {
-        var parts = code.Split('.');
-        return new RememberMeToken(parts[0], parts[1]);
-    }
-    
-};
-
-public record NewRememberMeToken(string Selector, string Verifier, DateTimeOffset Expires)
-{
-    public string Code => $"{Selector}.{Verifier}";
-}

Femto.Modules.Auth/Application/Dto/Session.cs

@@ -2,16 +2,4 @@ using Femto.Modules.Auth.Models;
 
 namespace Femto.Modules.Auth.Application.Dto;
 
-public record SessionDto(
+public record Session(string SessionId, DateTimeOffset Expires);
-    string SessionId,
-    DateTimeOffset Expires,
-    bool Weak,
-    string? RememberMe = null
-)
-{
-    internal SessionDto(Session session)
-        : this(session.Id, session.Expires, !session.IsStronglyAuthenticated) { }
-
-    internal SessionDto(Session session, string? rememberMe)
-        : this(session.Id, session.Expires, !session.IsStronglyAuthenticated, rememberMe) { }
-}

Femto.Modules.Auth/Application/Dto/SignupCodeDto.cs

@@ -1,10 +0,0 @@
-namespace Femto.Modules.Auth.Application.Dto;
-
-public record SignupCodeDto(
-    string Code,
-    string Email,
-    string Name,
-    Guid? RedeemedByUserId,
-    string? RedeemedByUsername,
-    DateTimeOffset? ExpiresOn
-);

Femto.Modules.Auth/Application/Dto/UserInfo.cs

@@ -1,10 +0,0 @@
-using Femto.Modules.Auth.Contracts;
-using Femto.Modules.Auth.Models;
-
-namespace Femto.Modules.Auth.Application.Dto;
-
-public record UserInfo(Guid Id, string Username, ICollection<Role> Roles)
-{
-    internal UserInfo(UserIdentity user)
-        : this(user.Id, user.Username, user.Roles.Select(r => r.Role).ToList()) { }
-};

Femto.Modules.Auth/Application/Dto/ValidateSessionResult.cs

@@ -1,3 +1,3 @@
 namespace Femto.Modules.Auth.Application.Dto;
 
-public record ValidateSessionResult(SessionDto SessionDto);
+public record ValidateSessionResult(Session Session, Guid UserId, string Username);

Femto.Modules.Auth/Application/IAuthModule.cs

@@ -0,0 +1,8 @@
+using Femto.Common.Domain;
+
+namespace Femto.Modules.Auth.Application;
+
+public interface IAuthModule
+{
+    Task<TResponse> PostCommand<TResponse>(ICommand<TResponse> command, CancellationToken cancellationToken = default);
+}

Femto.Modules.Auth/Application/IAuthService.cs

@@ -1,45 +0,0 @@
-using Femto.Modules.Auth.Application.Dto;
-using Femto.Modules.Auth.Models;
-
-namespace Femto.Modules.Auth.Application;
-
-public interface IAuthService
-{
-    public Task<UserAndSession?> AuthenticateUserCredentials(
-        string username,
-        string password,
-        CancellationToken cancellationToken = default
-    );
-    public Task<UserInfo?> GetUserWithId(
-        Guid? userId,
-        CancellationToken cancellationToken = default
-    );
-    public Task<Session> CreateNewSession(Guid userId);
-    public Task<Session> CreateWeakSession(Guid userId);
-    public Task<Session?> GetSession(string sessionId);
-    public Task DeleteSession(string sessionId);
-
-    public Task<UserAndSession> CreateUserWithCredentials(string username,
-        string password,
-        string signupCode,
-        CancellationToken cancellationToken = default);
-
-    public Task AddSignupCode(
-        string code,
-        string recipientName,
-        CancellationToken cancellationToken = default
-    );
-
-    public Task<ICollection<SignupCodeDto>> GetSignupCodes(
-        CancellationToken cancellationToken = default
-    );
-
-    Task<NewRememberMeToken> CreateRememberMeToken(Guid userId);
-    Task<(UserInfo?, NewRememberMeToken?)> GetUserWithRememberMeToken(RememberMeToken rememberMeToken);
-    Task DeleteRememberMeToken(RememberMeToken rememberMeToken);
-
-    Task ChangePassword(Guid userId, string password, CancellationToken cancellationToken = default);
-    Task InvalidateUserSessions(Guid userId, CancellationToken cancellationToken = default);
-}
-
-public record UserAndSession(UserInfo User, Session Session);

Femto.Modules.Auth/Data/AuthContext.cs

@@ -1,18 +1,12 @@
-using Femto.Common.Domain;
 using Femto.Common.Infrastructure.Outbox;
 using Femto.Modules.Auth.Models;
-using MediatR;
 using Microsoft.EntityFrameworkCore;
-using Microsoft.EntityFrameworkCore.Infrastructure;
-using Microsoft.Extensions.Logging;
 
 namespace Femto.Modules.Auth.Data;
 
 internal class AuthContext(DbContextOptions<AuthContext> options) : DbContext(options), IOutboxContext
 {
     public virtual DbSet<UserIdentity> Users { get; set; }
-    public virtual DbSet<SignupCode> SignupCodes { get; set; }
-    public virtual DbSet<LongTermSession> LongTermSessions { get; set; }
     public virtual DbSet<OutboxEntry> Outbox { get; set; }
 
     protected override void OnModelCreating(ModelBuilder builder)
@@ -21,43 +15,4 @@ internal class AuthContext(DbContextOptions<AuthContext> options) : DbContext(op
         builder.HasDefaultSchema("authn");
         builder.ApplyConfigurationsFromAssembly(typeof(AuthContext).Assembly);
     }
-
-    public override int SaveChanges()
-    {
-        throw new InvalidOperationException("Use SaveChangesAsync instead");
-    }
-
-    public override async Task<int> SaveChangesAsync(CancellationToken cancellationToken = default)
-    {
-        await EmitDomainEvents(cancellationToken);
-        
-        return await base.SaveChangesAsync(cancellationToken);
-    }
-
-    private async Task EmitDomainEvents(CancellationToken cancellationToken)
-    {
-        var logger = this.GetService<ILogger<AuthContext>>();
-        var publisher = this.GetService<IPublisher>();
-        var domainEvents = this
-            .ChangeTracker.Entries<Entity>()
-            .SelectMany(e =>
-            {
-                var events = e.Entity.DomainEvents;
-                e.Entity.ClearDomainEvents();
-                return events;
-            })
-            .ToList();
-
-        logger.LogTrace("loaded {Count} domain events", domainEvents.Count);
-
-        foreach (var domainEvent in domainEvents)
-        {
-            logger.LogTrace(
-                "publishing {Type} domain event {Id}",
-                domainEvent.GetType().Name,
-                domainEvent.EventId
-            );
-            await publisher.Publish(domainEvent, cancellationToken);
-        }
-    }
 }

Femto.Modules.Auth/Data/Configurations/LongTermSessionConfiguration.cs

@@ -1,13 +0,0 @@
-using Femto.Modules.Auth.Models;
-using Microsoft.EntityFrameworkCore;
-using Microsoft.EntityFrameworkCore.Metadata.Builders;
-
-namespace Femto.Modules.Auth.Data.Configurations;
-
-public class LongTermSessionConfiguration : IEntityTypeConfiguration<LongTermSession>
-{
-    public void Configure(EntityTypeBuilder<LongTermSession> builder)
-    {
-        builder.ToTable("long_term_session");
-    }
-}

Femto.Modules.Auth/Data/Configurations/SignupCodeConfiguration.cs

@@ -1,14 +0,0 @@
-using Femto.Modules.Auth.Models;
-using Microsoft.EntityFrameworkCore;
-using Microsoft.EntityFrameworkCore.Metadata.Builders;
-
-namespace Femto.Modules.Auth.Data.Configurations;
-
-internal class SignupCodeConfiguration : IEntityTypeConfiguration<SignupCode>
-{
-    public void Configure(EntityTypeBuilder<SignupCode> builder)
-    {
-        builder.ToTable("signup_code");
-        builder.HasKey(t => t.Code);
-    }
-}

Femto.Modules.Auth/Data/Configurations/UserIdentityTypeConfiguration.cs

@@ -9,21 +9,16 @@ internal class UserIdentityTypeConfiguration : IEntityTypeConfiguration<UserIden
     public void Configure(EntityTypeBuilder<UserIdentity> builder)
     {
         builder.ToTable("user_identity");
-        builder.OwnsOne(
+        builder.OwnsOne(u => u.Password, pw =>
-            u => u.Password,
-            pw =>
         {
-                pw.Property(p => p.Hash).HasColumnName("password_hash").IsRequired(false);
+            pw.Property(p => p.Hash)
+                .HasColumnName("password_hash")
+                .IsRequired(false);
 
-                pw.Property(p => p.Salt).HasColumnName("password_salt").IsRequired(false);
+            pw.Property(p => p.Salt)
-            }
+                .HasColumnName("password_salt")
-        );
+                .IsRequired(false);
-
-        builder
-            .OwnsMany(u => u.Roles, entity =>
-            {
-                entity.WithOwner().HasForeignKey(x => x.UserId);
-                entity.HasKey(x => new { x.UserId, x.Role});
         });
+        builder.OwnsMany(u => u.Sessions).WithOwner().HasForeignKey("user_id");
     }
 }

Femto.Modules.Auth/Femto.Modules.Auth.csproj

@@ -8,7 +8,6 @@
 
     <ItemGroup>
       <PackageReference Include="Autofac" Version="8.3.0" />
-      <PackageReference Include="Dapper" Version="2.1.66" />
       <PackageReference Include="EFCore.NamingConventions" Version="9.0.0" />
       <PackageReference Include="Geralt" Version="3.3.0" />
       <PackageReference Include="JetBrains.Annotations" Version="2024.3.0" />

Femto.Modules.Auth/Infrastructure/SaveChangesPipelineBehaviour.cs

@@ -1,23 +0,0 @@
-using Femto.Modules.Auth.Data;
-using MediatR;
-
-namespace Femto.Modules.Auth.Infrastructure;
-
-internal class SaveChangesPipelineBehaviour<TRequest, TResponse>(AuthContext context)
-    : IPipelineBehavior<TRequest, TResponse>
-    where TRequest : notnull
-{
-    public async Task<TResponse> Handle(
-        TRequest request,
-        RequestHandlerDelegate<TResponse> next,
-        CancellationToken cancellationToken
-    )
-    {
-        var response = await next(cancellationToken);
-
-        if (context.ChangeTracker.HasChanges())
-            await context.SaveChangesAsync(cancellationToken);
-
-        return response;
-    }
-}

Femto.Modules.Auth/Infrastructure/SessionStorage.cs

@@ -1,56 +0,0 @@
-using System.Collections;
-using System.Collections.Concurrent;
-using Femto.Modules.Auth.Models;
-using Microsoft.Extensions.Caching.Memory;
-
-namespace Femto.Modules.Auth.Infrastructure;
-
-internal class SessionStorage(TimeProvider timeProvider)
-{
-    private readonly IMemoryCache _storage = new MemoryCache(new MemoryCacheOptions());
-
-    public async Task<Session?> GetSession(string id)
-    {
-        var session = this._storage.Get<Session>($"session:{id}");
-
-        if (session is null)
-            return null;
-
-        var invalidUntil = this._storage.Get<DateTimeOffset?>(
-            $"user:invalid_until:{session.UserId}"
-        );
-
-        if (invalidUntil is not null && invalidUntil > session.Expires)
-            return null;
-
-        return session;
-    }
-
-    public Task AddSession(Session session)
-    {
-        using var sessionEntry = this._storage.CreateEntry($"session:{session.Id}");
-        sessionEntry.Value = session;
-        sessionEntry.SetAbsoluteExpiration(session.Expires);
-
-        return Task.CompletedTask;
-    }
-
-    public Task DeleteSession(string id)
-    {
-        this._storage.Remove($"session:{id}");
-
-        return Task.CompletedTask;
-    }
-
-    public Task InvalidateUserSessions(Guid userId)
-    {
-        var invalidUntil = timeProvider.GetUtcNow() + Session.ValidityPeriod;
-
-        // invalidate sessions who are currently valid
-        // any sessions created after this will have a validity period that extends past invalid_until
-        // this cache entry doesn't need to live longer than that point in time
-        this._storage.Set($"user:invalid_until:{userId}", invalidUntil, invalidUntil);
-
-        return Task.CompletedTask;
-    }
-}

Femto.Modules.Auth/Models/DomainEventHandlers/UserPasswordChangedHandler.cs

@@ -1,22 +0,0 @@
-using Femto.Modules.Auth.Data;
-using Femto.Modules.Auth.Models.Events;
-using MediatR;
-using Microsoft.EntityFrameworkCore;
-
-namespace Femto.Modules.Auth.Models.DomainEventHandlers;
-
-internal class UserPasswordChangedHandler(AuthContext context)
-    : INotificationHandler<UserWasCreatedEvent>
-{
-    public async Task Handle(UserWasCreatedEvent notification, CancellationToken cancellationToken)
-    {
-        var longTermSessions = await context
-            .LongTermSessions.Where(s => s.UserId == notification.User.Id)
-            .ToListAsync(cancellationToken);
-        
-        foreach (var session in longTermSessions)
-        {
-            session.Invalidate();
-        }
-    }
-}

Femto.Modules.Auth/Models/Events/UserPasswordChangedDomainEvent.cs

@@ -1,5 +0,0 @@
-using Femto.Common.Domain;
-
-namespace Femto.Modules.Auth.Models.Events;
-
-internal record UserPasswordChangedDomainEvent(UserIdentity User) : DomainEvent;

Femto.Modules.Auth/Models/LongTermSession.cs

@@ -1,73 +0,0 @@
-using System.ComponentModel.DataAnnotations.Schema;
-using System.Text;
-using static System.Security.Cryptography.RandomNumberGenerator;
-
-namespace Femto.Modules.Auth.Models;
-
-public class LongTermSession
-{
-    private static TimeSpan TokenTimeout { get; } = TimeSpan.FromDays(90);
-    private static TimeSpan RefreshBuffer { get; } = TimeSpan.FromDays(5);
-
-    public int Id { get; private set; }
-
-    public string Selector { get; private set; }
-
-    public byte[] HashedVerifier { get; private set; }
-
-    public DateTimeOffset Expires { get; private set; }
-
-    public Guid UserId { get; private set; }
-    
-    public bool IsInvalidated { get; private set; }
-
-    [NotMapped]
-    public bool ExpiresSoon => this.Expires < DateTimeOffset.UtcNow + RefreshBuffer;
-
-    private LongTermSession() { }
-
-    public static (LongTermSession, string) Create(Guid userId)
-    {
-        var selector = GetString(
-            "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789",
-            12
-        );
-     
-        var verifier = GetString("abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789", 32);
-
-        using var sha256 = System.Security.Cryptography.SHA256.Create();
-
-        var longTermSession = new LongTermSession
-        {
-            Selector = selector,
-            HashedVerifier = ComputeHash(verifier),
-            UserId = userId,
-            Expires = DateTimeOffset.UtcNow + TokenTimeout,
-        };
-
-        return (longTermSession, verifier);
-    }
-
-    public bool CheckVerifier(string verifier)
-    {
-        if (this.IsInvalidated)
-            return false;
-        
-        if (this.Expires < DateTimeOffset.UtcNow)
-            return false;
-
-        return ComputeHash(verifier).SequenceEqual(this.HashedVerifier);
-    }
-
-    private static byte[] ComputeHash(string verifier)
-    {
-        using var sha256 = System.Security.Cryptography.SHA256.Create();
-        var hashedVerifier = sha256.ComputeHash(Encoding.UTF8.GetBytes(verifier));
-        return hashedVerifier;
-    }
-    
-    public void Invalidate()
-    {
-        this.IsInvalidated = true;
-    }
-}

Femto.Modules.Auth/Models/Session.cs

@@ -1,16 +0,0 @@
-using static System.Security.Cryptography.RandomNumberGenerator;
-
-namespace Femto.Modules.Auth.Models;
-
-public class Session(Guid userId, bool isStrong)
-{
-    public static readonly  TimeSpan ValidityPeriod = TimeSpan.FromMinutes(15);
-    private static readonly TimeSpan RefreshBuffer = TimeSpan.FromMinutes(5);
-    public string Id { get; } = Convert.ToBase64String(GetBytes(32));
-    public Guid UserId { get; } = userId;
-    public DateTimeOffset Expires { get; } = DateTimeOffset.UtcNow + ValidityPeriod;
-    
-    public bool ExpiresSoon => this.Expires < DateTimeOffset.UtcNow + RefreshBuffer;
-    public bool IsStronglyAuthenticated { get; } = isStrong;
-    public bool IsExpired  => this.Expires < DateTimeOffset.UtcNow;
-}

Femto.Modules.Auth/Models/SignupCode.cs

@@ -1,41 +0,0 @@
-using Femto.Common.Domain;
-
-namespace Femto.Modules.Auth.Models;
-
-public class SignupCode
-{
-    private static readonly TimeSpan ExpiryTime = TimeSpan.FromDays(14);
-    public string Code { get; private set; }
-    
-    /// <summary>
-    /// The email of the intended recipient
-    /// </summary>
-    public string RecipientEmail { get; private set; }
-    
-    /// <summary>
-    /// The name of the intended recipient
-    /// </summary>
-    public string RecipientName { get; private set; }
-    public DateTimeOffset CreatedAt { get; private set; }
-    public DateTimeOffset? ExpiresAt { get; private set; }
-    public Guid? RedeemingUserId { get; private set; }
-
-    private SignupCode() { }
-    
-    public SignupCode(string recipientEmail, string recipientName, string code)
-    {
-        this.Code = code;
-        this.RecipientEmail = recipientEmail;
-        this.RecipientName = recipientName;
-        this.CreatedAt = DateTimeOffset.UtcNow;
-        this.ExpiresAt = this.CreatedAt + ExpiryTime;
-    }
-
-    public void Redeem(Guid userGuid)
-    {
-        if (this.RedeemingUserId is not null) 
-            throw new DomainError("invalid signup code");
-        
-        this.RedeemingUserId = userGuid;
-    }
-}

Femto.Modules.Auth/Models/UserIdentity.cs

@@ -1,6 +1,8 @@
+using System.Text;
+using System.Text.Unicode;
 using Femto.Common.Domain;
-using Femto.Modules.Auth.Contracts;
 using Femto.Modules.Auth.Models.Events;
+using Geralt;
 
 namespace Femto.Modules.Auth.Models;
 
@@ -12,7 +14,7 @@ internal class UserIdentity : Entity
 
     public Password? Password { get; private set; }
 
-    public ICollection<UserRole> Roles { get; private set; } = [];
+    public ICollection<UserSession> Sessions { get; private set; } = [];
 
     private UserIdentity() { }
 
@@ -21,15 +23,17 @@ internal class UserIdentity : Entity
         this.Id = Guid.CreateVersion7();
         this.Username = username;
 
-        this.Roles = [new UserRole(Role.User)];
-
         this.AddDomainEvent(new UserWasCreatedEvent(this));
     }
 
+    public UserIdentity WithPassword(string password)
+    {
+        this.SetPassword(password);
+        return this;
+    }
+
     public void SetPassword(string password)
     {
-        if (this.Password is not null)
-            this.AddDomainEvent(new UserPasswordChangedDomainEvent(this));
         this.Password = new Password(password);
     }
 
@@ -42,6 +46,25 @@ internal class UserIdentity : Entity
         
         return this.Password.Check(requestPassword);
     }
+
+    public UserSession PossiblyRefreshSession(string sessionId)
+    {
+        var session = this.Sessions.Single(s => s.Id == sessionId);
+    
+        if (session.ExpiresSoon)
+            return this.StartNewSession();
+    
+        return session;
+    }
+
+    public UserSession StartNewSession()
+    {
+        var session = UserSession.Create();
+        
+        this.Sessions.Add(session);
+
+        return session;
+    }
 }
 
 public class SetPasswordError(string message, Exception inner) : DomainError(message, inner);

Femto.Modules.Auth/Models/UserRole.cs

@@ -1,17 +0,0 @@
-using Femto.Modules.Auth.Contracts;
-
-namespace Femto.Modules.Auth.Models;
-
-internal class UserRole
-{
-    public Guid UserId { get; set; }
-    
-    public Role Role { get; set; }
-    
-    private UserRole() {}
-    
-    public UserRole( Role role){
-        Role = role;
-        
-    }
-}

Femto.Modules.Auth/Models/UserSession.cs

@@ -0,0 +1,21 @@
+namespace Femto.Modules.Auth.Models;
+
+internal class UserSession
+{
+    private static TimeSpan SessionTimeout { get; } = TimeSpan.FromMinutes(30);
+    private static TimeSpan ExpiryBuffer { get; } = TimeSpan.FromMinutes(5);
+    public string Id { get; private set; }
+    public DateTimeOffset Expires { get; private set; }
+    public bool ExpiresSoon => Expires < DateTimeOffset.UtcNow + ExpiryBuffer;
+    
+    private UserSession() {}
+
+    public static UserSession Create()
+    {
+        return new()
+        {
+            Id = Convert.ToBase64String(System.Security.Cryptography.RandomNumberGenerator.GetBytes(32)),
+            Expires = DateTimeOffset.UtcNow + SessionTimeout
+        };
+    }
+}

Femto.Modules.Blog.Data/Class1.cs

@@ -0,0 +1,5 @@
+namespace Femto.Modules.Blog.Data;
+
+public class Class1
+{
+}

Femto.Modules.Blog.Data/Femto.Modules.Blog.Data.csproj

@@ -0,0 +1,9 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+    <PropertyGroup>
+        <TargetFramework>net9.0</TargetFramework>
+        <ImplicitUsings>enable</ImplicitUsings>
+        <Nullable>enable</Nullable>
+    </PropertyGroup>
+
+</Project>

Femto.Modules.Blog.Domain/Femto.Modules.Blog.Domain.csproj

@@ -0,0 +1,24 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+    <PropertyGroup>
+        <TargetFramework>net9.0</TargetFramework>
+        <ImplicitUsings>enable</ImplicitUsings>
+        <Nullable>enable</Nullable>
+    </PropertyGroup>
+
+    <ItemGroup>
+      <PackageReference Include="MediatR" Version="12.5.0" />
+    </ItemGroup>
+
+    <ItemGroup>
+      <ProjectReference Include="..\Femto.Common\Femto.Common.csproj" />
+      <ProjectReference Include="..\Femto.Modules.Blog.Contracts\Femto.Modules.Blog.Contracts.csproj" />
+    </ItemGroup>
+
+    <ItemGroup>
+      <Reference Include="Microsoft.EntityFrameworkCore">
+        <HintPath>..\..\..\..\.nuget\packages\microsoft.entityframeworkcore\9.0.4\lib\net8.0\Microsoft.EntityFrameworkCore.dll</HintPath>
+      </Reference>
+    </ItemGroup>
+
+</Project>

Femto.Modules.Blog/Application/BlogModule.cs

@@ -1,29 +1,37 @@
 using Femto.Common.Domain;
 using MediatR;
+using Microsoft.Extensions.DependencyInjection;
+using Microsoft.Extensions.Hosting;
 
 namespace Femto.Modules.Blog.Application;
 
-internal class BlogModule(IMediator mediator) : IBlogModule
+internal class BlogModule(IHost host) : IBlogModule
 {
-    public async Task Command(ICommand command, CancellationToken cancellationToken = default)
+    public async Task PostCommand(ICommand command, CancellationToken cancellationToken = default)
     {
+        using var scope = host.Services.CreateScope();
+        var mediator = scope.ServiceProvider.GetRequiredService<IMediator>();
         await mediator.Send(command, cancellationToken);
     }
 
-    public async Task<TResponse> Command<TResponse>(
+    public async Task<TResponse> PostCommand<TResponse>(
         ICommand<TResponse> command,
         CancellationToken cancellationToken = default
     )
     {
+        using var scope = host.Services.CreateScope();
+        var mediator = scope.ServiceProvider.GetRequiredService<IMediator>();
         var response = await mediator.Send(command, cancellationToken);
         return response;
     }
 
-    public async Task<TResponse> Query<TResponse>(
+    public async Task<TResponse> PostQuery<TResponse>(
         IQuery<TResponse> query,
         CancellationToken cancellationToken = default
     )
     {
+        using var scope = host.Services.CreateScope();
+        var mediator = scope.ServiceProvider.GetRequiredService<IMediator>();
         var response = await mediator.Send(query, cancellationToken);
         return response;
     }

Femto.Modules.Blog/Application/BlogStartup.cs

@@ -1,5 +1,4 @@
 using System.Runtime.CompilerServices;
-using Femto.Common;
 using Femto.Common.Infrastructure;
 using Femto.Common.Infrastructure.DbConnection;
 using Femto.Common.Infrastructure.Outbox;
@@ -21,28 +20,20 @@ public static class BlogStartup
     public static void InitializeBlogModule(
         this IServiceCollection rootContainer,
         string connectionString,
-        IEventBus bus,
+        IEventBus bus
-        ILoggerFactory loggerFactory
     )
     {
         var hostBuilder = Host.CreateDefaultBuilder();
 
         hostBuilder.ConfigureServices(services =>
-            ConfigureServices(services, connectionString, bus, loggerFactory)
+            ConfigureServices(services, connectionString, bus)
         );
 
         var host = hostBuilder.Build();
 
-        rootContainer.AddHostedService(_ => new BlogApplication(host));
+        rootContainer.AddHostedService(services => new BlogApplication(host));
 
-        rootContainer.AddKeyedScoped<ScopeBinding>(
+        rootContainer.AddScoped<IBlogModule>(_ => new BlogModule(host));
-            "BlogService",
-            (_, o) => new ScopeBinding(host.Services.CreateScope())
-        );
-        
-        rootContainer.AddScoped(services =>
-            services.GetRequiredKeyedService<ScopeBinding>("BlogService").GetService<IBlogModule>()
-        );
 
         bus.Subscribe(
             (evt, cancellationToken) => EventSubscriber(evt, host.Services, cancellationToken)
@@ -52,8 +43,7 @@ public static class BlogStartup
     private static void ConfigureServices(
         this IServiceCollection services,
         string connectionString,
-        IEventPublisher publisher,
+        IEventPublisher publisher
-        ILoggerFactory loggerFactory
     )
     {
         services.AddTransient<IDbConnectionFactory>(_ => new DbConnectionFactory(connectionString));
@@ -68,12 +58,10 @@ public static class BlogStartup
                 }
             );
             builder.UseSnakeCaseNamingConvention();
+            var loggerFactory = LoggerFactory.Create(b => { });
             builder.UseLoggerFactory(loggerFactory);
         });
         
-        services.AddSingleton(loggerFactory);
-        services.AddSingleton(typeof(ILogger<>), typeof(Logger<>));
-
         services.AddOutbox<BlogContext, OutboxMessageHandler>();
 
         services.AddMediatR(c =>
@@ -83,8 +71,6 @@ public static class BlogStartup
 
         services.ConfigureDomainServices<BlogContext>();
 
-        services.AddScoped<IBlogModule, BlogModule>();
-
         services.AddSingleton(publisher);
     }
 

Femto.Modules.Blog/Application/Commands/AddPostComment/AddPostCommentCommand.cs

@@ -1,5 +0,0 @@
-using Femto.Common.Domain;
-
-namespace Femto.Modules.Blog.Application.Commands.AddPostComment;
-
-public record AddPostCommentCommand(Guid PostId, Guid AuthorId, string Content) : ICommand;

Femto.Modules.Blog/Application/Commands/AddPostComment/AddPostCommentCommandHandler.cs

@@ -1,20 +0,0 @@
-using Femto.Common.Domain;
-using Microsoft.EntityFrameworkCore;
-
-namespace Femto.Modules.Blog.Application.Commands.AddPostComment;
-
-internal class AddPostCommentCommandHandler(BlogContext context) : ICommandHandler<AddPostCommentCommand>
-{
-    public async Task Handle(AddPostCommentCommand request, CancellationToken cancellationToken)
-    {
-        var post = await context.Posts.SingleOrDefaultAsync(
-            p => p.Id == request.PostId,
-            cancellationToken
-        );
-
-        if (post is null)
-            return;
-
-        post.AddComment(request.AuthorId, request.Content);
-    }
-}

Femto.Modules.Blog/Application/Commands/AddPostReaction/AddPostReactionCommand.cs

@@ -1,6 +0,0 @@
-using Femto.Common;
-using Femto.Common.Domain;
-
-namespace Femto.Modules.Blog.Application.Commands.AddPostReaction;
-
-public record AddPostReactionCommand(Guid PostId, string Emoji, Guid ReactorId) : ICommand;

Femto.Modules.Blog/Application/Commands/AddPostReaction/AddPostReactionCommandHandler.cs

@@ -1,21 +0,0 @@
-using Femto.Common.Domain;
-using Microsoft.EntityFrameworkCore;
-
-namespace Femto.Modules.Blog.Application.Commands.AddPostReaction;
-
-internal class AddPostReactionCommandHandler(BlogContext context)
-    : ICommandHandler<AddPostReactionCommand>
-{
-    public async Task Handle(AddPostReactionCommand request, CancellationToken cancellationToken)
-    {
-        var post = await context.Posts.SingleOrDefaultAsync(
-            p => p.Id == request.PostId,
-            cancellationToken
-        );
-
-        if (post is null)
-            return;
-
-        post.AddReaction(request.ReactorId, request.Emoji);
-    }
-}

Femto.Modules.Blog/Application/Commands/ClearPostReaction/ClearPostReactionCommand.cs

@@ -1,6 +0,0 @@
-using Femto.Common;
-using Femto.Common.Domain;
-
-namespace Femto.Modules.Blog.Application.Commands.ClearPostReaction;
-
-public record ClearPostReactionCommand(Guid PostId, string Emoji, Guid ReactorId): ICommand;

Femto.Modules.Blog/Application/Commands/ClearPostReaction/ClearPostReactionCommandHandler.cs

@@ -1,22 +0,0 @@
-using Femto.Common.Domain;
-using Femto.Modules.Blog.Application.Commands.AddPostReaction;
-using Microsoft.EntityFrameworkCore;
-
-namespace Femto.Modules.Blog.Application.Commands.ClearPostReaction;
-
-internal class ClearPostReactionCommandHandler(BlogContext context)
-    : ICommandHandler<ClearPostReactionCommand>
-{
-    public async Task Handle(ClearPostReactionCommand request, CancellationToken cancellationToken)
-    {
-        var post = await context.Posts.SingleOrDefaultAsync(
-            p => p.Id == request.PostId,
-            cancellationToken
-        );
-
-        if (post is null)
-            return;
-
-        post.RemoveReaction(request.ReactorId, request.Emoji);
-    }
-}

Femto.Modules.Blog/Application/Commands/CreatePost/CreatePostCommand.cs

@@ -1,22 +1,8 @@
-using Femto.Common;
 using Femto.Common.Domain;
-using Femto.Modules.Blog.Application.Queries.GetPosts.Dto;
 
 namespace Femto.Modules.Blog.Application.Commands.CreatePost;
 
-public record CreatePostCommand(
+public record CreatePostCommand(Guid AuthorId, string Content, IEnumerable<CreatePostMedia> Media, bool? IsPublic)
-    Guid AuthorId,
+    : ICommand<Guid>;
-    string Content,
-    IEnumerable<CreatePostMedia> Media,
-    bool? IsPublic,
-    CurrentUser CurrentUser
-) : ICommand<PostDto>;
 
-public record CreatePostMedia(
+public record CreatePostMedia(Guid MediaId, Uri Url, string? Type, int Order, int? Width, int? Height);
-    Guid MediaId,
-    Uri Url,
-    string? Type,
-    int Order,
-    int? Width,
-    int? Height
-);

Femto.Modules.Blog/Application/Commands/CreatePost/CreatePostCommandHandler.cs

@@ -1,16 +1,12 @@
-using Femto.Modules.Blog.Application.Queries.GetPosts.Dto;
 using Femto.Modules.Blog.Domain.Posts;
 using MediatR;
 
 namespace Femto.Modules.Blog.Application.Commands.CreatePost;
 
 internal class CreatePostCommandHandler(BlogContext context)
-    : IRequestHandler<CreatePostCommand, PostDto>
+    : IRequestHandler<CreatePostCommand, Guid>
 {
-    public async Task<PostDto> Handle(
+    public async Task<Guid> Handle(CreatePostCommand request, CancellationToken cancellationToken)
-        CreatePostCommand request,
-        CancellationToken cancellationToken
-    )
     {
         var post = new Post(
             request.AuthorId,
@@ -24,21 +20,13 @@ internal class CreatePostCommandHandler(BlogContext context)
                     media.Width,
                     media.Height
                 ))
-                .ToList(),
+                .ToList()
-            request.IsPublic is true
         );
         
+        post.IsPublic = request.IsPublic is true;
+
         await context.AddAsync(post, cancellationToken);
 
-        return new PostDto(
+        return post.Id;
-            post.Id,
-            post.Content,
-            post.Media.Select(m => new PostMediaDto(m.Url, m.Width, m.Height)).ToList(),
-            post.PostedOn,
-            new PostAuthorDto(post.AuthorId, request.CurrentUser.Username),
-            [],
-            post.PossibleReactions,
-            []
-        );
     }
 }

Femto.Modules.Blog/Application/Commands/DeletePost/DeletePostCommand.cs

@@ -1,5 +0,0 @@
-using Femto.Common.Domain;
-
-namespace Femto.Modules.Blog.Application.Commands.DeletePost;
-
-public record DeletePostCommand(Guid PostId, Guid InitiatingUserId) : ICommand;

Femto.Modules.Blog/Application/Configurations/PostConfiguration.cs

@@ -10,24 +10,5 @@ internal class PostConfiguration : IEntityTypeConfiguration<Post>
     {
         table.ToTable("post");
         table.OwnsMany(post => post.Media).WithOwner();
-        table.OwnsMany(
-            post => post.Reactions,
-            reactions =>
-            {
-                reactions.WithOwner().HasForeignKey(r => r.PostId);
-                reactions.HasKey(r => new
-                {
-                    r.PostId,
-                    r.AuthorId,
-                    r.Emoji,
-                });
-            }
-        );
-
-        table.OwnsMany(p => p.Comments).WithOwner();
-
-        table.Property<string>("PossibleReactionsJson").HasColumnName("possible_reactions");
-
-        table.Ignore(e => e.PossibleReactions);
     }
 }

Femto.Modules.Blog/Application/IBlogModule.cs

@@ -4,14 +4,14 @@ namespace Femto.Modules.Blog.Application;
 
 public interface IBlogModule
 {
-    Task Command(ICommand command, CancellationToken cancellationToken = default);
+    Task PostCommand(ICommand command, CancellationToken cancellationToken = default);
 
-    Task<TResponse> Command<TResponse>(
+    Task<TResponse> PostCommand<TResponse>(
         ICommand<TResponse> command,
         CancellationToken cancellationToken = default
     );
 
-    Task<TResponse> Query<TResponse>(
+    Task<TResponse> PostQuery<TResponse>(
         IQuery<TResponse> query,
         CancellationToken cancellationToken = default
     );

Femto.Modules.Blog/Application/Queries/GetPosts/Dto/GetPostsQueryResult.cs

@@ -1,3 +1,3 @@
 namespace Femto.Modules.Blog.Application.Queries.GetPosts.Dto;
 
-public record GetPostsQueryResult(IList<PostDto> Posts);
+public record GetPostsQueryResult(IList<PostDto> Posts, Guid? Next);

Femto.Modules.Blog/Application/Queries/GetPosts/Dto/PostCommentDto.cs

@@ -1,3 +0,0 @@
-namespace Femto.Modules.Blog.Application.Queries.GetPosts.Dto;
-
-public record PostCommentDto(string Author, string Content, DateTimeOffset PostedOn);

Femto.Modules.Blog/Application/Queries/GetPosts/Dto/PostDto.cs

@@ -1,12 +1,3 @@
 namespace Femto.Modules.Blog.Application.Queries.GetPosts.Dto;
 
-public record PostDto(
+public record PostDto(Guid PostId, string Text, IList<PostMediaDto> Media, DateTimeOffset CreatedAt, PostAuthorDto Author);
-    Guid PostId,
-    string Text,
-    IList<PostMediaDto> Media,
-    DateTimeOffset CreatedAt,
-    PostAuthorDto Author,
-    IList<PostReactionDto> Reactions,
-    IEnumerable<string> PossibleReactions,
-    IList<PostCommentDto> Comments
-);

Femto.Modules.Blog/Application/Queries/GetPosts/Dto/PostReactionDto.cs

@@ -1,3 +0,0 @@
-namespace Femto.Modules.Blog.Application.Queries.GetPosts.Dto;
-
-public record PostReactionDto(string Emoji, string AuthorName, DateTimeOffset ReactedOn);

Femto.Modules.Blog/Application/Queries/GetPosts/GetPostsQuery.cs

@@ -3,27 +3,22 @@ using Femto.Modules.Blog.Application.Queries.GetPosts.Dto;
 
 namespace Femto.Modules.Blog.Application.Queries.GetPosts;
 
-/// <summary>
-/// Get posts in reverse chronological order
-/// </summary>
-/// <param name="CurrentUserId"></param>
 public record GetPostsQuery(Guid? CurrentUserId) : IQuery<GetPostsQueryResult>
 {
-    /// <summary>
+    public Guid? From { get; init; }
-    /// Id of the specific post to load. If specified, After and Amount are ignored
-    /// </summary>
-    public Guid? PostId { get; }
-    
-    /// <summary>
-    /// If specified, loads posts from after the given Id. Used for paging
-    /// </summary>
-    public Guid? After { get; init; }
     public int Amount { get; init; } = 20;
     public Guid? AuthorId { get; init; }
     public string? Author { get; init; }
 
-    public GetPostsQuery(Guid postId, Guid? currentUserId) : this(currentUserId)
+    /// <summary>
-    {
+    /// Default is to load in reverse chronological order
-        this.PostId = postId;
+    /// TODO this is not exposed on the client as it probably wouldn't work that well
-    }
+    /// </summary>
+    public GetPostsDirection Direction { get; init; } = GetPostsDirection.Backward;
+}
+
+public enum GetPostsDirection
+{
+    Forward,
+    Backward,
 }

Femto.Modules.Blog/Application/Queries/GetPosts/GetPostsQueryHandler.cs

@@ -1,4 +1,3 @@
-using System.Text.Json;
 using Dapper;
 using Femto.Common.Infrastructure.DbConnection;
 using Femto.Modules.Blog.Application.Queries.GetPosts.Dto;
@@ -16,158 +15,101 @@ public class GetPostsQueryHandler(IDbConnectionFactory connectionFactory)
     {
         using var conn = connectionFactory.GetConnection();
 
+        var orderBy = query.Direction is GetPostsDirection.Backward ? "desc" : "asc";
+        var pageFilter = query.Direction is GetPostsDirection.Backward ? "<=" : ">=";
         var username = query.Author;
         var authorGuid = query.AuthorId;
-        var cursor = query.After;
+        var cursor = query.From;
         var showPrivate = query.CurrentUserId is not null;
 
-        var loadPostsResult = await conn.QueryAsync<LoadPostRow>(
+        // lang=sql
-            """
+        var sql = $$"""
-            select 
+            with page as (
-                blog.post.id as PostId,
+                select blog.post.*, blog.author.username as Username, blog.author.id as AuthorId
-                blog.post.content as Content,
-                blog.post.posted_on as PostedOn,
-                blog.author.username as Username,
-                blog.author.id as AuthorId,
-                blog.post.possible_reactions as PossibleReactions
                 from blog.post
                 inner join blog.author on blog.author.id = blog.post.author_id
                 where (@username is null or blog.author.username = @username)
-            and (@postId is null or blog.post.id = @postId)
                 and (@showPrivate or blog.post.is_public = true)
                 and (@authorGuid is null or blog.author.id = @authorGuid)
-            and (@cursor is null or blog.post.id < @cursor)
+                and (@cursor is null or blog.post.id {{pageFilter}} @cursor)
-            order by blog.post.id desc
+                order by blog.post.id {{orderBy}}
                 limit @amount
-            """,
+            )
+            select
+                page.id as PostId,
+                page.content as Content,
+                blog.post_media.url as MediaUrl,
+                blog.post_media.width as MediaWidth,
+                blog.post_media.height as MediaHeight,
+                page.posted_on as PostedOn,
+                page.Username,
+                page.AuthorId
+                from page
+            left join blog.post_media on blog.post_media.post_id = page.id
+            order by page.id {{orderBy}}
+            """;
+
+        var result = await conn.QueryAsync<QueryResult>(
+            sql,
             new
             {
                 username,
                 authorGuid,
                 cursor,
-                amount = query.PostId is not null ? 1 : query.Amount,
+                // load an extra one to take for the cursor
+                amount = query.Amount + 1,
                 showPrivate,
-                postId = query.PostId,
             }
         );
 
-        var posts = loadPostsResult.ToList();
+        var rows = result.ToList();
 
-        var postIds = posts.Select(p => p.PostId).ToList();
+        var posts = rows.GroupBy(row => row.PostId)
-
+            .Select(group =>
-        var loadMediaResult = await conn.QueryAsync<LoadMediaRow>(
-            """
-            select 
-                pm.url as MediaUrl,
-                pm.type as MediaType,
-                pm.width as MediaWidth,
-                pm.height as MediaHeight,
-                pm.post_id as PostId
-            from blog.post_media pm where pm.post_id = ANY (@postIds)
-            order by pm.ordering
-            """,
-            new { postIds }
-        );
-
-        var media = loadMediaResult.ToList();
-
-        var loadReactionsResult = await conn.QueryAsync<LoadReactionRow>(
-            """
-            select 
-                pr.post_id as PostId,
-                a.username as AuthorName,
-                pr.emoji as Emoji,
-                pr.created_at as CreatedOn
-            from blog.post_reaction pr
-            join blog.author a on a.id = pr.author_id
-            where pr.post_id = ANY (@postIds)
-            """,
-            new { postIds }
-        );
-
-        var reactions = loadReactionsResult.ToList();
-
-        var loadCommentsResult = await conn.QueryAsync<LoadCommentRow>(
-            """
-            select 
-                pc.id as CommentId,
-                pc.post_id as PostId,
-                pc.content as Content,
-                pc.created_at as PostedOn,
-                a.username as AuthorName
-            from blog.post_comment pc
-            join blog.author a on pc.author_id = a.id
-            where pc.post_id = ANY (@postIds)
-            """,
-            new { postIds }
-        );
-
-        var comments = loadCommentsResult.ToList();
-
-        return new GetPostsQueryResult(
-            posts
-                .Select(p => new PostDto(
-                    p.PostId,
-                    p.Content,
-                    media
-                        .Where(m => m.PostId == p.PostId)
-                        .Select(m => new PostMediaDto(
-                            new Uri(m.MediaUrl),
-                            m.MediaWidth,
-                            m.MediaHeight
-                        ))
-                        .ToList(),
-                    p.PostedOn,
-                    new PostAuthorDto(p.AuthorId, p.Username),
-                    reactions
-                        .Where(r => r.PostId == p.PostId)
-                        .Select(r => new PostReactionDto(r.Emoji, r.AuthorName, r.CreatedAt))
-                        .ToList(),
-                    !string.IsNullOrEmpty(p.PossibleReactions)
-                        ? JsonSerializer.Deserialize<IEnumerable<string>>(p.PossibleReactions)!
-                        : [],
-                    comments
-                        .Where(c => c.PostId == p.PostId)
-                        .Select(c => new PostCommentDto(c.AuthorName, c.Content, c.PostedOn))
-                        .ToList()
-                ))
-                .ToList()
-        );
-    }
-
-    internal record LoadPostRow
             {
-        public Guid PostId { get; init; }
+                var postId = group.Key;
-        public string Content { get; init; }
+                var post = group.First();
-        public DateTimeOffset PostedOn { get; init; }
+                var media = group
-        public string Username { get; init; }
+                    .Select(row =>
-        public Guid AuthorId { get; init; }
+                    {
-        public string? PossibleReactions { get; init; }
+                        if (row.MediaUrl is not null)
+                        {
+                            return new PostMediaDto(
+                                new Uri(row.MediaUrl),
+                                row.MediaHeight,
+                                row.MediaHeight
+                            );
+                        }
+                        else
+                            return null;
+                    })
+                    .OfType<PostMediaDto>()
+                    .ToList();
+                return new PostDto(
+                    postId,
+                    post.Content,
+                    media,
+                    post.PostedOn,
+                    new PostAuthorDto(post.AuthorId, post.Username)
+                );
+            })
+            .ToList();
+
+        var next = rows.Count >= query.Amount ? rows.LastOrDefault()?.PostId : null;
+
+        return new GetPostsQueryResult(posts, next);
     }
 
-    internal record LoadMediaRow
+    internal class QueryResult
     {
-        public string MediaUrl { get; init; }
+        public Guid PostId { get; set; }
-        public string? MediaType { get; init; }
+        public string Content { get; set; }
-        public int? MediaWidth { get; init; }
+        public string? MediaUrl { get; set; }
-        public int? MediaHeight { get; init; }
+        public string? MediaType { get; set; }
-        public Guid PostId { get; init; }
+        public int? MediaWidth { get; set; }
-    }
+        public int? MediaHeight { get; set; }
-
+        public DateTimeOffset PostedOn { get; set; }
-    internal record LoadReactionRow
+        public Guid AuthorId { get; set; }
-    {
+        public string Username { get; set; }
-        public Guid PostId { get; init; }
-        public string AuthorName { get; init; }
-        public string Emoji { get; init; }
-        public DateTimeOffset CreatedAt { get; init; }
-    }
-
-    internal record LoadCommentRow
-    {
-        public Guid CommentId { get; init; }
-        public Guid PostId { get; init; }
-        public string Content { get; init; }
-        public DateTimeOffset PostedOn { get; init; }
-        public string AuthorName { get; init; }
     }
 }

Femto.Modules.Blog/Domain/Posts/Post.cs

@@ -1,7 +1,5 @@
-using System.Text.Json;
 using Femto.Common.Domain;
 using Femto.Modules.Blog.Domain.Posts.Events;
-using Femto.Modules.Blog.Emoji;
 
 namespace Femto.Modules.Blog.Domain.Posts;
 
@@ -11,62 +9,17 @@ internal class Post : Entity
     public Guid AuthorId { get; private set; }
     public string Content { get; private set; } = null!;
     public IList<PostMedia> Media { get; private set; }
-
+    public bool IsPublic { get; set; }
-    public IList<PostReaction> Reactions { get; private set; } = [];
-    
-    public IList<PostComment> Comments { get; private set; } = [];
-    public bool IsPublic { get; private set; }
-
-    public DateTimeOffset PostedOn { get; private set; }
-
-    private string PossibleReactionsJson { get; set; } = null!;
-
-    public IEnumerable<string> PossibleReactions
-    {
-        get => JsonSerializer.Deserialize<IEnumerable<string>>(this.PossibleReactionsJson)!;
-        init => PossibleReactionsJson = JsonSerializer.Serialize(value);
-    }
 
     private Post() { }
 
-    public Post(Guid authorId, string content, IList<PostMedia> media, bool isPublic)
+    public Post(Guid authorId, string content, IList<PostMedia> media)
     {
         this.Id = Guid.CreateVersion7();
         this.AuthorId = authorId;
         this.Content = content;
         this.Media = media;
-        this.PossibleReactions = AllEmoji.GetRandomEmoji(5);
-        this.PostedOn = DateTimeOffset.UtcNow;
-        this.IsPublic = isPublic;
 
         this.AddDomainEvent(new PostCreated(this));
     }
-
-    public void AddReaction(Guid reactorId, string emoji)
-    {
-        if (!this.PossibleReactions.Contains(emoji))
-            return;
-
-        if (this.Reactions.Any(r => r.AuthorId == reactorId && r.Emoji == emoji))
-            return;
-
-        this.Reactions.Add(new PostReaction(reactorId, this.Id, emoji));
-    }
-
-    public void RemoveReaction(Guid reactorId, string emoji)
-    {
-        this.Reactions = this
-            .Reactions.Where(r => r.AuthorId != reactorId || r.Emoji != emoji)
-            .ToList();
-    }
-    
-    public void AddComment(Guid authorId, string content)
-    {
-        // XXX just ignore empty comments for now. we may want to upgrade this to an error
-        //     but it is probably suitable to just consider it a no-op
-        if (string.IsNullOrWhiteSpace(content))
-            return;
-        
-        this.Comments.Add(new PostComment(authorId, content));
-    }
 }