🧱 Grpc service basis

DysonNetwork.Pusher/Connection/ClientTypeMiddleware.cs

@@ -0,0 +1,42 @@
+namespace DysonNetwork.Pusher.Connection;
+
+public class ClientTypeMiddleware(RequestDelegate next)
+{
+    public async Task Invoke(HttpContext context)
+    {
+        var headers = context.Request.Headers;
+        bool isWebPage;
+
+        // Priority 1: Check for custom header
+        if (headers.TryGetValue("X-Client", out var clientType))
+        {
+            isWebPage = clientType.ToString().Length == 0;
+        }
+        else
+        {
+            var userAgent = headers.UserAgent.ToString();
+            var accept = headers.Accept.ToString();
+
+            // Priority 2: Check known app User-Agent (backward compatibility)
+            if (!string.IsNullOrEmpty(userAgent) && userAgent.Contains("Solian"))
+                isWebPage = false;
+            // Priority 3: Accept header can help infer intent
+            else if (!string.IsNullOrEmpty(accept) && accept.Contains("text/html"))
+                isWebPage = true;
+            else if (!string.IsNullOrEmpty(accept) && accept.Contains("application/json"))
+                isWebPage = false;
+            else
+                isWebPage = true;
+        }
+
+        context.Items["IsWebPage"] = isWebPage;
+
+        if (!isWebPage && context.Request.Path != "/ws" && !context.Request.Path.StartsWithSegments("/api"))
+            context.Response.Redirect(
+                $"/api{context.Request.Path.Value}{context.Request.QueryString.Value}",
+                permanent: false
+            );
+        else
+            await next(context);
+    }
+}

DysonNetwork.Pusher/Connection/IWebSocketPacketHandler.cs

@@ -0,0 +1,9 @@
+using System.Net.WebSockets;
+
+namespace DysonNetwork.Pusher.Connection;
+
+public interface IWebSocketPacketHandler
+{
+    string PacketType { get; }
+    Task HandleAsync(Account currentUser, string deviceId, WebSocketPacket packet, WebSocket socket, WebSocketService srv);
+}

DysonNetwork.Pusher/Connection/WebSocketController.cs

@@ -0,0 +1,108 @@
+using System.Collections.Concurrent;
+using System.Net.WebSockets;
+using Microsoft.AspNetCore.Authorization;
+using Microsoft.AspNetCore.Mvc;
+using Microsoft.EntityFrameworkCore.Metadata.Internal;
+using Swashbuckle.AspNetCore.Annotations;
+
+namespace DysonNetwork.Pusher.Connection;
+
+[ApiController]
+[Route("/ws")]
+public class WebSocketController(WebSocketService ws, ILogger<WebSocketContext> logger) : ControllerBase
+{
+    [Route("/ws")]
+    [Authorize]
+    [SwaggerIgnore]
+    public async Task TheGateway()
+    {
+        HttpContext.Items.TryGetValue("CurrentUser", out var currentUserValue);
+        HttpContext.Items.TryGetValue("CurrentSession", out var currentSessionValue);
+        if (currentUserValue is not Account.Account currentUser ||
+            currentSessionValue is not Auth.Session currentSession)
+        {
+            HttpContext.Response.StatusCode = StatusCodes.Status401Unauthorized;
+            return;
+        }
+
+        var accountId = currentUser.Id;
+        var deviceId = currentSession.Challenge.DeviceId;
+
+        if (string.IsNullOrEmpty(deviceId))
+        {
+            HttpContext.Response.StatusCode = StatusCodes.Status400BadRequest;
+            return;
+        }
+
+        using var webSocket = await HttpContext.WebSockets.AcceptWebSocketAsync();
+        var cts = new CancellationTokenSource();
+        var connectionKey = (accountId, deviceId);
+
+        if (!ws.TryAdd(connectionKey, webSocket, cts))
+        {
+            await webSocket.CloseAsync(
+                WebSocketCloseStatus.InternalServerError,
+                "Failed to establish connection.",
+                CancellationToken.None
+            );
+            return;
+        }
+
+        logger.LogInformation(
+            $"Connection established with user @{currentUser.Name}#{currentUser.Id} and device #{deviceId}");
+
+        try
+        {
+            await _ConnectionEventLoop(deviceId, currentUser, webSocket, cts.Token);
+        }
+        catch (Exception ex)
+        {
+            Console.WriteLine($"WebSocket Error: {ex.Message}");
+        }
+        finally
+        {
+            ws.Disconnect(connectionKey);
+            logger.LogInformation(
+                $"Connection disconnected with user @{currentUser.Name}#{currentUser.Id} and device #{deviceId}");
+        }
+    }
+
+    private async Task _ConnectionEventLoop(
+        string deviceId,
+        Account.Account currentUser,
+        WebSocket webSocket,
+        CancellationToken cancellationToken
+    )
+    {
+        var connectionKey = (AccountId: currentUser.Id, DeviceId: deviceId);
+
+        var buffer = new byte[1024 * 4];
+        try
+        {
+            var receiveResult = await webSocket.ReceiveAsync(
+                new ArraySegment<byte>(buffer),
+                cancellationToken
+            );
+            while (!receiveResult.CloseStatus.HasValue)
+            {
+                receiveResult = await webSocket.ReceiveAsync(
+                    new ArraySegment<byte>(buffer),
+                    cancellationToken
+                );
+
+                var packet = WebSocketPacket.FromBytes(buffer[..receiveResult.Count]);
+                _ = ws.HandlePacket(currentUser, connectionKey.DeviceId, packet, webSocket);
+            }
+        }
+        catch (OperationCanceledException)
+        {
+            if (
+                webSocket.State != WebSocketState.Closed
+                && webSocket.State != WebSocketState.Aborted
+            )
+            {
+                ws.Disconnect(connectionKey);
+            }
+        }
+    }
+}

DysonNetwork.Pusher/Connection/WebSocketPacket.cs

@@ -0,0 +1,72 @@
+using System.Text.Json;
+using NodaTime;
+using NodaTime.Serialization.SystemTextJson;
+
+public class WebSocketPacketType
+{
+    public const string Error = "error";
+    public const string MessageNew = "messages.new";
+    public const string MessageUpdate = "messages.update";
+    public const string MessageDelete = "messages.delete";
+    public const string CallParticipantsUpdate = "call.participants.update";
+}
+
+public class WebSocketPacket
+{
+    public string Type { get; set; } = null!;
+    public object Data { get; set; } = null!;
+    public string? ErrorMessage { get; set; }
+
+    /// <summary>
+    /// Creates a WebSocketPacket from raw WebSocket message bytes
+    /// </summary>
+    /// <param name="bytes">Raw WebSocket message bytes</param>
+    /// <returns>Deserialized WebSocketPacket</returns>
+    public static WebSocketPacket FromBytes(byte[] bytes)
+    {
+        var json = System.Text.Encoding.UTF8.GetString(bytes);
+        var jsonOpts = new JsonSerializerOptions
+        {
+            PropertyNamingPolicy = JsonNamingPolicy.SnakeCaseLower,
+            DictionaryKeyPolicy = JsonNamingPolicy.SnakeCaseLower,
+        };
+        return JsonSerializer.Deserialize<WebSocketPacket>(json, jsonOpts) ??
+            throw new JsonException("Failed to deserialize WebSocketPacket");
+    }
+
+    /// <summary>
+    /// Deserializes the Data property to the specified type T
+    /// </summary>
+    /// <typeparam name="T">Target type to deserialize to</typeparam>
+    /// <returns>Deserialized data of type T</returns>
+    public T? GetData<T>()
+    {
+        if (Data is T typedData)
+            return typedData;
+
+        var jsonOpts = new JsonSerializerOptions
+        {
+            PropertyNamingPolicy = JsonNamingPolicy.SnakeCaseLower,
+            DictionaryKeyPolicy = JsonNamingPolicy.SnakeCaseLower,
+        };
+        return JsonSerializer.Deserialize<T>(
+            JsonSerializer.Serialize(Data, jsonOpts),
+            jsonOpts
+        );
+    }
+
+    /// <summary>
+    /// Serializes this WebSocketPacket to a byte array for sending over WebSocket
+    /// </summary>
+    /// <returns>Byte array representation of the packet</returns>
+    public byte[] ToBytes()
+    {
+        var jsonOpts = new JsonSerializerOptions
+        {
+            PropertyNamingPolicy = JsonNamingPolicy.SnakeCaseLower,
+            DictionaryKeyPolicy = JsonNamingPolicy.SnakeCaseLower,
+        }.ConfigureForNodaTime(DateTimeZoneProviders.Tzdb);
+        var json = JsonSerializer.Serialize(this, jsonOpts);
+        return System.Text.Encoding.UTF8.GetBytes(json);
+    }
+}

DysonNetwork.Pusher/Connection/WebSocketService.cs

@@ -0,0 +1,129 @@
+using System.Collections.Concurrent;
+using System.Net.WebSockets;
+
+namespace DysonNetwork.Pusher.Connection;
+
+public class WebSocketService
+{
+    private readonly IDictionary<string, IWebSocketPacketHandler> _handlerMap;
+
+    public WebSocketService(IEnumerable<IWebSocketPacketHandler> handlers)
+    {
+        _handlerMap = handlers.ToDictionary(h => h.PacketType);
+    }
+
+    private static readonly ConcurrentDictionary<
+        (Guid AccountId, string DeviceId),
+        (WebSocket Socket, CancellationTokenSource Cts)
+    > ActiveConnections = new();
+
+    private static readonly ConcurrentDictionary<string, string> ActiveSubscriptions = new(); // deviceId -> chatRoomId
+
+    public void SubscribeToChatRoom(string chatRoomId, string deviceId)
+    {
+        ActiveSubscriptions[deviceId] = chatRoomId;
+    }
+
+    public void UnsubscribeFromChatRoom(string deviceId)
+    {
+        ActiveSubscriptions.TryRemove(deviceId, out _);
+    }
+
+    public bool IsUserSubscribedToChatRoom(Guid accountId, string chatRoomId)
+    {
+        var userDeviceIds = ActiveConnections.Keys.Where(k => k.AccountId == accountId).Select(k => k.DeviceId);
+        foreach (var deviceId in userDeviceIds)
+        {
+            if (ActiveSubscriptions.TryGetValue(deviceId, out var subscribedChatRoomId) && subscribedChatRoomId == chatRoomId)
+            {
+                return true;
+            }
+        }
+        return false;
+    }
+
+    public bool TryAdd(
+        (Guid AccountId, string DeviceId) key,
+        WebSocket socket,
+        CancellationTokenSource cts
+    )
+    {
+        if (ActiveConnections.TryGetValue(key, out _))
+            Disconnect(key,
+                "Just connected somewhere else with the same identifier."); // Disconnect the previous one using the same identifier
+        return ActiveConnections.TryAdd(key, (socket, cts));
+    }
+
+    public void Disconnect((Guid AccountId, string DeviceId) key, string? reason = null)
+    {
+        if (!ActiveConnections.TryGetValue(key, out var data)) return;
+        data.Socket.CloseAsync(
+            WebSocketCloseStatus.NormalClosure,
+            reason ?? "Server just decided to disconnect.",
+            CancellationToken.None
+        );
+        data.Cts.Cancel();
+        ActiveConnections.TryRemove(key, out _);
+        UnsubscribeFromChatRoom(key.DeviceId);
+    }
+
+    public bool GetAccountIsConnected(Guid accountId)
+    {
+        return ActiveConnections.Any(c => c.Key.AccountId == accountId);
+    }
+
+    public void SendPacketToAccount(Guid userId, WebSocketPacket packet)
+    {
+        var connections = ActiveConnections.Where(c => c.Key.AccountId == userId);
+        var packetBytes = packet.ToBytes();
+        var segment = new ArraySegment<byte>(packetBytes);
+
+        foreach (var connection in connections)
+        {
+            connection.Value.Socket.SendAsync(
+                segment,
+                WebSocketMessageType.Binary,
+                true,
+                CancellationToken.None
+            );
+        }
+    }
+
+    public void SendPacketToDevice(string deviceId, WebSocketPacket packet)
+    {
+        var connections = ActiveConnections.Where(c => c.Key.DeviceId == deviceId);
+        var packetBytes = packet.ToBytes();
+        var segment = new ArraySegment<byte>(packetBytes);
+
+        foreach (var connection in connections)
+        {
+            connection.Value.Socket.SendAsync(
+                segment,
+                WebSocketMessageType.Binary,
+                true,
+                CancellationToken.None
+            );
+        }
+    }
+
+    public async Task HandlePacket(Account.Account currentUser, string deviceId, WebSocketPacket packet,
+        WebSocket socket)
+    {
+        if (_handlerMap.TryGetValue(packet.Type, out var handler))
+        {
+            await handler.HandleAsync(currentUser, deviceId, packet, socket, this);
+            return;
+        }
+
+        await socket.SendAsync(
+            new ArraySegment<byte>(new WebSocketPacket
+            {
+                Type = WebSocketPacketType.Error,
+                ErrorMessage = $"Unprocessable packet: {packet.Type}"
+            }.ToBytes()),
+            WebSocketMessageType.Binary,
+            true,
+            CancellationToken.None
+        );
+    }
+}

DysonNetwork.Pusher/Dockerfile

@@ -0,0 +1,23 @@
+FROM mcr.microsoft.com/dotnet/aspnet:9.0 AS base
+USER $APP_UID
+WORKDIR /app
+EXPOSE 8080
+EXPOSE 8081
+
+FROM mcr.microsoft.com/dotnet/sdk:9.0 AS build
+ARG BUILD_CONFIGURATION=Release
+WORKDIR /src
+COPY ["DysonNetwork.Pusher/DysonNetwork.Pusher.csproj", "DysonNetwork.Pusher/"]
+RUN dotnet restore "DysonNetwork.Pusher/DysonNetwork.Pusher.csproj"
+COPY . .
+WORKDIR "/src/DysonNetwork.Pusher"
+RUN dotnet build "./DysonNetwork.Pusher.csproj" -c $BUILD_CONFIGURATION -o /app/build
+
+FROM build AS publish
+ARG BUILD_CONFIGURATION=Release
+RUN dotnet publish "./DysonNetwork.Pusher.csproj" -c $BUILD_CONFIGURATION -o /app/publish /p:UseAppHost=false
+
+FROM base AS final
+WORKDIR /app
+COPY --from=publish /app/publish .
+ENTRYPOINT ["dotnet", "DysonNetwork.Pusher.dll"]

DysonNetwork.Pusher/DysonNetwork.Pusher.csproj

@@ -0,0 +1,21 @@
+<Project Sdk="Microsoft.NET.Sdk.Web">
+
+    <PropertyGroup>
+        <TargetFramework>net9.0</TargetFramework>
+        <Nullable>enable</Nullable>
+        <ImplicitUsings>enable</ImplicitUsings>
+        <DockerDefaultTargetOS>Linux</DockerDefaultTargetOS>
+    </PropertyGroup>
+
+    <ItemGroup>
+        <PackageReference Include="Grpc.AspNetCore.Server" Version="2.71.0" />
+        <PackageReference Include="Microsoft.AspNetCore.OpenApi" Version="9.0.7"/>
+    </ItemGroup>
+
+    <ItemGroup>
+      <Content Include="..\.dockerignore">
+        <Link>.dockerignore</Link>
+      </Content>
+    </ItemGroup>
+
+</Project>

DysonNetwork.Pusher/Program.cs

@@ -0,0 +1,23 @@
+var builder = WebApplication.CreateBuilder(args);
+
+// Add services to the container.
+
+builder.Services.AddControllers();
+// Learn more about configuring OpenAPI at https://aka.ms/aspnet/openapi
+builder.Services.AddOpenApi();
+
+var app = builder.Build();
+
+// Configure the HTTP request pipeline.
+if (app.Environment.IsDevelopment())
+{
+    app.MapOpenApi();
+}
+
+app.UseHttpsRedirection();
+
+app.UseAuthorization();
+
+app.MapControllers();
+
+app.Run();

DysonNetwork.Pusher/Properties/launchSettings.json

@@ -0,0 +1,23 @@
+{
+  "$schema": "https://json.schemastore.org/launchsettings.json",
+  "profiles": {
+    "http": {
+      "commandName": "Project",
+      "dotnetRunMessages": true,
+      "launchBrowser": false,
+      "applicationUrl": "http://localhost:5212",
+      "environmentVariables": {
+        "ASPNETCORE_ENVIRONMENT": "Development"
+      }
+    },
+    "https": {
+      "commandName": "Project",
+      "dotnetRunMessages": true,
+      "launchBrowser": false,
+      "applicationUrl": "https://localhost:7259;http://localhost:5212",
+      "environmentVariables": {
+        "ASPNETCORE_ENVIRONMENT": "Development"
+      }
+    }
+  }
+}

DysonNetwork.Pusher/appsettings.json

@@ -0,0 +1,129 @@
+{
+  "Debug": true,
+  "BaseUrl": "http://localhost:5071",
+  "Logging": {
+    "LogLevel": {
+      "Default": "Information",
+      "Microsoft.AspNetCore": "Warning"
+    }
+  },
+  "AllowedHosts": "*",
+  "ConnectionStrings": {
+    "App": "Host=localhost;Port=5432;Database=dyson_network;Username=postgres;Password=postgres;Include Error Detail=True;Maximum Pool Size=20;Connection Idle Lifetime=60",
+    "FastRetrieve": "localhost:6379"
+  },
+  "Authentication": {
+    "Schemes": {
+      "Bearer": {
+        "ValidAudiences": [
+          "http://localhost:5071",
+          "https://localhost:7099"
+        ],
+        "ValidIssuer": "solar-network"
+      }
+    }
+  },
+  "AuthToken": {
+    "PublicKeyPath": "Keys/PublicKey.pem",
+    "PrivateKeyPath": "Keys/PrivateKey.pem"
+  },
+  "OidcProvider": {
+    "IssuerUri": "https://nt.solian.app",
+    "PublicKeyPath": "Keys/PublicKey.pem",
+    "PrivateKeyPath": "Keys/PrivateKey.pem",
+    "AccessTokenLifetime": "01:00:00",
+    "RefreshTokenLifetime": "30.00:00:00",
+    "AuthorizationCodeLifetime": "00:30:00",
+    "RequireHttpsMetadata": true
+  },
+  "Tus": {
+    "StorePath": "Uploads"
+  },
+  "Storage": {
+    "PreferredRemote": "minio",
+    "Remote": [
+      {
+        "Id": "minio",
+        "Label": "Minio",
+        "Region": "auto",
+        "Bucket": "solar-network-development",
+        "Endpoint": "localhost:9000",
+        "SecretId": "littlesheep",
+        "SecretKey": "password",
+        "EnabledSigned": true,
+        "EnableSsl": false
+      },
+      {
+        "Id": "cloudflare",
+        "Label": "Cloudflare R2",
+        "Region": "auto",
+        "Bucket": "solar-network",
+        "Endpoint": "0a70a6d1b7128888c823359d0008f4e1.r2.cloudflarestorage.com",
+        "SecretId": "8ff5d06c7b1639829d60bc6838a542e6",
+        "SecretKey": "fd58158c5201be16d1872c9209d9cf199421dae3c2f9972f94b2305976580d67",
+        "EnableSigned": true,
+        "EnableSsl": true
+      }
+    ]
+  },
+  "Captcha": {
+    "Provider": "cloudflare",
+    "ApiKey": "0x4AAAAAABCDUdOujj4feOb_",
+    "ApiSecret": "0x4AAAAAABCDUWABiJQweqlB7tYq-IqIm8U"
+  },
+  "Notifications": {
+    "Topic": "dev.solsynth.solian",
+    "Endpoint": "http://localhost:8088"
+  },
+  "Email": {
+    "Server": "smtp4dev.orb.local",
+    "Port": 25,
+    "UseSsl": false,
+    "Username": "no-reply@mail.solsynth.dev",
+    "Password": "password",
+    "FromAddress": "no-reply@mail.solsynth.dev",
+    "FromName": "Alphabot",
+    "SubjectPrefix": "Solar Network"
+  },
+  "RealtimeChat": {
+    "Endpoint": "https://solar-network-im44o8gq.livekit.cloud",
+    "ApiKey": "APIs6TiL8wj3A4j",
+    "ApiSecret": "SffxRneIwTnlHPtEf3zicmmv3LUEl7xXael4PvWZrEhE"
+  },
+  "GeoIp": {
+    "DatabasePath": "./Keys/GeoLite2-City.mmdb"
+  },
+  "Oidc": {
+    "Google": {
+      "ClientId": "961776991058-963m1qin2vtp8fv693b5fdrab5hmpl89.apps.googleusercontent.com",
+      "ClientSecret": ""
+    },
+    "Apple": {
+      "ClientId": "dev.solsynth.solian",
+      "TeamId": "W7HPZ53V6B",
+      "KeyId": "B668YP4KBG",
+      "PrivateKeyPath": "./Keys/Solarpass.p8"
+    },
+    "Microsoft": {
+      "ClientId": "YOUR_MICROSOFT_CLIENT_ID",
+      "ClientSecret": "YOUR_MICROSOFT_CLIENT_SECRET",
+      "DiscoveryEndpoint": "YOUR_MICROSOFT_DISCOVERY_ENDPOINT"
+    }
+  },
+  "Payment": {
+    "Auth": {
+      "Afdian": "<token here>"
+    },
+    "Subscriptions": {
+      "Afdian": {
+        "7d17aae23c9611f0b5705254001e7c00": "solian.stellar.primary",
+        "7dfae4743c9611f0b3a55254001e7c00": "solian.stellar.nova",
+        "141713ee3d6211f085b352540025c377": "solian.stellar.supernova"
+      }
+    }
+  },
+  "KnownProxies": [
+    "127.0.0.1",
+    "::1"
+  ]
+}