login sequence packets

Common/Utils/Logger.cs

@@ -1,4 +1,6 @@
-namespace Common.Utils
+using System.Diagnostics;
+
+namespace Common.Utils
 {
     public class Logger
     {
@@ -39,6 +41,13 @@
             Console.ResetColor();
         }
 
+        public void Trail(params string[] msg)
+        {
+            Console.ForegroundColor = ConsoleColor.DarkGray;
+            Console.WriteLine($"\t→ {string.Join(' ', msg)}");
+            Console.ResetColor();
+        }
+
         public void Error(params string[] message)
         {
             Console.ForegroundColor = ConsoleColor.White;
@@ -53,6 +62,10 @@
             Console.BackgroundColor = ConsoleColor.DarkRed;
             Console.WriteLine(string.Join("\t", message));
             Console.ResetColor();
+#if DEBUG
+            StackTrace trace = new(true);
+            Trail(trace.ToString());
+#endif
         }
         
         public void Debug(params string[] message)

GameServer/Game/Player.cs

@@ -0,0 +1,14 @@
+using Common.Database;
+
+namespace PemukulPaku.GameServer.Game
+{
+    public class Player
+    {
+        public User.UserScheme User;
+
+        public Player(User.UserScheme user)
+        {
+            User = user;
+        }
+    }
+}

GameServer/Handlers/GetPlayerTokenReqHandler.cs

@@ -0,0 +1,41 @@
+using Common.Resources.Proto;
+using Common.Database;
+
+namespace PemukulPaku.GameServer.Handlers
+{
+    [PacketCmdId(CmdId.GetPlayerTokenReq)]
+    internal class GetPlayerTokenReqHandler : IPacketHandler
+    {
+        public void Handle(Session session, Packet _packet)
+        {
+            GetPlayerTokenReq Packet = _packet.GetDecodedBody<GetPlayerTokenReq>();
+            GetPlayerTokenRsp Rsp = new () { };
+            User.UserScheme? CurrentUser = User.FromToken(Packet.AccountToken);
+
+            if (CurrentUser == null || CurrentUser.Uid != uint.Parse(Packet.AccountUid))
+            {
+                Rsp.retcode = GetPlayerTokenRsp.Retcode.AccountVerifyError;
+                Rsp.Msg = "Account verification failed, please re-login!";
+            }
+            else
+            {
+                session.Player = new Game.Player(CurrentUser);
+
+                Rsp = new()
+                {
+                    retcode = GetPlayerTokenRsp.Retcode.Succ,
+                    Uid = CurrentUser.Uid,
+                    Token = CurrentUser.Token,
+                    AccountType = Packet.AccountType,
+                    AccountUid = Packet.AccountUid,
+                    UserType = 4,
+                    HoyolabAccountUid = Packet.AccountUid,
+                    FightserverIp = 186782306,
+                    FightserverPort = 2096693423
+                };
+            }
+
+            session.Send(GameServer.Packet.FromProto(Rsp, CmdId.GetPlayerTokenRsp));
+        }
+    }
+}

GameServer/Handlers/PlayerLoginReqHandler.cs

@@ -0,0 +1,35 @@
+using Common;
+using Common.Database;
+using Common.Resources.Proto;
+using Newtonsoft.Json;
+
+namespace PemukulPaku.GameServer.Handlers
+{
+    [PacketCmdId(CmdId.PlayerLoginReq)]
+    internal class PlayerLoginReqHandler : IPacketHandler
+    {
+        public void Handle(Session session, Packet packet)
+        {
+            User.UserScheme User = session.Player.User;
+
+            PlayerLoginRsp Rsp = new()
+            {
+                retcode = PlayerLoginRsp.Retcode.Succ,
+                IsFirstLogin = User.IsFirstLogin,
+                RegionName = Global.config.Gameserver.RegionName,
+                CgType = User.IsFirstLogin ? CGType.CgStart : CGType.CgSevenChapter,
+                RegionId = 248,
+                LoginSessionToken = 1,
+                PsychoKey = 0
+            };
+
+            session.Send(Packet.FromProto(Rsp, CmdId.PlayerLoginRsp), Packet.FromProto(new GetMpDataRsp()
+            {
+                retcode = GetMpDataRsp.Retcode.Succ,
+                DataType = MpDataType.MpDataPunishTime,
+                op_type = GetMpDataRsp.OpType.UpdateData,
+                PunishEndTime = 0
+            }, CmdId.GetMpDataRsp));
+        }
+    }
+}

GameServer/Packet.cs

@@ -26,7 +26,7 @@ namespace PemukulPaku.GameServer
 
             if (PacketName == null)
             {
-                c.Error($"CMD ID {CmdId} NOT RECOGNIZED!");
+                c.Warn($"CmdId {CmdId} not recognized!");
             }
 
             HeadMagic = buf.Take(4).ToArray();
@@ -35,20 +35,52 @@ namespace PemukulPaku.GameServer
             BodyLen = BinaryPrimitives.ReadUInt32BigEndian(buf.AsSpan(30));
             Body = buf.Skip(34 + headerLen).Take((int)BodyLen).ToArray();
             TailMagic = buf.Skip(buf.Length - 4).ToArray();
+        }
+
+        public T GetDecodedBody<T>()
+        {
+            T SerializedBody = default!;
 
             try
             {
                 MemoryStream ms = new(Body);
-                object SerializedBody = Serializer.NonGeneric.Deserialize(typeof(Common.Global).Assembly.GetType($"Common.Resources.Proto.{PacketName}"), ms)!;
-                c.Debug(JsonConvert.SerializeObject(SerializedBody));
+                SerializedBody = Serializer.Deserialize<T>(ms)!;
             }
             catch
             {
-                c.Error($"Failed to deserialized packet with Common.Resources.Proto.{PacketName}");
+                string? PacketName = Enum.GetName(typeof(CmdId), CmdId);
+                c.Error($"Failed to deserialize {PacketName ?? CmdId.ToString()}!");
             }
+            return SerializedBody;
+        }
+
+        public static Packet FromProto<T>(T proto, CmdId cmdId)
+        {
+            MemoryStream stream = new ();
+            Serializer.Serialize(stream, proto);
+            byte[] data = stream.ToArray();
+
+            byte[] buf = new byte[38 + data.Length];
+            Array.Fill(buf, (byte)0);
+
+            BinaryPrimitives.WriteUInt32BigEndian(buf, 0x1234567);
+            BinaryPrimitives.WriteUInt16BigEndian(buf.AsSpan(4), 1);
+            BinaryPrimitives.WriteUInt16BigEndian(buf.AsSpan(6), 0);
+            BinaryPrimitives.WriteUInt32BigEndian(buf.AsSpan(8), 0);
+            BinaryPrimitives.WriteUInt32BigEndian(buf.AsSpan(12), 0);
+            BinaryPrimitives.WriteUInt32BigEndian(buf.AsSpan(16), 0);
+            BinaryPrimitives.WriteUInt32BigEndian(buf.AsSpan(20), 0);
+            BinaryPrimitives.WriteUInt32BigEndian(buf.AsSpan(24), (uint)cmdId);
+            BinaryPrimitives.WriteUInt16BigEndian(buf.AsSpan(28), 0);
+            BinaryPrimitives.WriteUInt32BigEndian(buf.AsSpan(30), (uint)data.Length);
+            data.CopyTo(buf.AsSpan(34));
+            BinaryPrimitives.WriteUInt32BigEndian(buf.AsSpan(34 + data.Length), 0x89abcdef);
+
+            return new Packet(buf);
         }
     }
 
+    [AttributeUsage(AttributeTargets.Class)]
     public class PacketCmdId : Attribute
     {
         public CmdId Id { get; }
@@ -90,14 +122,11 @@ namespace PemukulPaku.GameServer
 
             c.Log("Finished Loading Packet Handlers");
         }
-    }
 
-    [PacketCmdId(CmdId.PlayerLoginReq)]
-    public class PlayerLoginReqHandler : IPacketHandler
-    {
-        public void Handle(Session session, Packet packet)
+        public static IPacketHandler? GetPacketHandler(CmdId cmdId)
         {
-            throw new NotImplementedException();
+            Handlers.TryGetValue(cmdId, out IPacketHandler? handler);
+            return handler;
         }
     }
 }

GameServer/Session.cs

@@ -1,5 +1,8 @@
 using System.Net.Sockets;
+using Common;
+using Common.Resources.Proto;
 using Common.Utils;
+using PemukulPaku.GameServer.Game;
 
 namespace PemukulPaku.GameServer
 {
@@ -8,6 +11,7 @@ namespace PemukulPaku.GameServer
         public readonly string Id;
         public readonly TcpClient Client;
         public readonly Logger c;
+        public Player Player = default!;
 
         public Session(string id, TcpClient client)
         {
@@ -96,7 +100,53 @@ namespace PemukulPaku.GameServer
 
         public void ProcessPacket(byte[] packet)
         {
-            _ = new Packet(packet);
+            Packet _packet = new(packet);
+            string PacketName = Enum.GetName(typeof(CmdId), _packet.CmdId)!;
+            try
+            {
+                CmdId cmdId = (CmdId)Enum.ToObject(typeof(CmdId), _packet.CmdId);
+                IPacketHandler? handler = PacketFactory.GetPacketHandler(cmdId);
+
+                if (handler == null)
+                {
+                    c.Warn($"{PacketName} not handled!");
+                    return;
+                }
+
+                c.Log(PacketName);
+
+                handler.Handle(this, _packet);
+            }
+            catch(Exception ex) 
+            { 
+                if ((int)Global.config.VerboseLevel > 0)
+                {
+                    c.Error(ex.Message); 
+                }
+            }
+        }
+
+        public void Send(params Packet[] packets)
+        {
+            foreach (Packet packet in packets)
+            {
+                string PacketName = Enum.GetName(typeof(CmdId), packet.CmdId)!;
+
+                try
+                {
+                    Client.GetStream().Write(packet.Raw, 0, packet.Raw.Length);
+                    c.Log(PacketName);
+                }
+                catch (Exception ex)
+                {
+                    c.Error($"Failed to send {PacketName}:" + ex.Message);
+                }
+            }
+        }
+
+        public override string ToString()
+        {
+            return Id;
         }
     }
 }