Reorganize root folder structure: Remove apps layer layer

2026-03-19 22:22:45 +03:00
parent fb252f9d87
commit 11ebbc853b
296 changed files with 139 additions and 139 deletions
@@ -0,0 +1,52 @@
+using Host.Application.Stories;
+using Knot.Shared.Kernel;
+using Knot.Shared.Kernel.Configuration;
+using Knot.Shared.Kernel.Constants;
+using System;
+using System.Linq;
+using System.Security.Cryptography;
+using System.Threading;
+using System.Threading.Tasks;
+using MediatR;
+
+namespace Host.Application.Federation.Commands;
+
+public record HandshakeRequest(string Domain, string PublicKey);
+public record HandshakeResponse(string Domain, string PublicKey, string Status);
+
+public record HandshakeFederationCommand(HandshakeRequest Request) : ICommand<HandshakeResponse>;
+
+internal sealed class HandshakeFederationCommandHandler : ICommandHandler<HandshakeFederationCommand, HandshakeResponse>
+{
+    private readonly ISettingsService _settings;
+
+    public HandshakeFederationCommandHandler(ISettingsService settings)
+    {
+        _settings = settings;
+    }
+
+    public Task<Result<HandshakeResponse>> Handle(HandshakeFederationCommand request, CancellationToken cancellationToken)
+    {
+        var conf = _settings.Current;
+        if (!conf.EnableConfederation)
+            return Task.FromResult(Result.Failure<HandshakeResponse>(new Error(Errors.DisabledByAdmin, "Federation is disabled")));
+
+        if (string.IsNullOrEmpty(request.Request.Domain) || string.IsNullOrEmpty(request.Request.PublicKey))
+            return Task.FromResult(Result.Failure<HandshakeResponse>(DomainErrors.RequestInvalid));
+
+        var allowedList = conf.AllowedDomains?.Select(d => d.Trim().ToLower()).ToList() ?? new System.Collections.Generic.List<string>();
+        if (!allowedList.Contains(request.Request.Domain.ToLowerInvariant()))
+            return Task.FromResult(Result.Failure<HandshakeResponse>(StoryErrors.Unauthorized));
+
+        using var rsa = RSA.Create(2048);
+        var selfPublicKey = Convert.ToBase64String(rsa.ExportRSAPublicKey());
+
+        var response = new HandshakeResponse(
+            Environment.GetEnvironmentVariable("DOMAIN") ?? "knot.local",
+            selfPublicKey,
+            "Accepted"
+        );
+        
+        return Task.FromResult(Result.Success(response));
+    }
+}