Esempio n. 1
0
        public static async Task <Packet> ReadFromStreamAsync(MinecraftStream stream)
        {
            int length = await stream.ReadVarIntAsync();

            byte[] receivedData = new byte[length];

            await stream.ReadAsync(receivedData, 0, length);

            int packetId = 0;

            byte[] packetData = new byte[0];

            using (var packetStream = new MinecraftStream(receivedData))
            {
                try
                {
                    packetId = await packetStream.ReadVarIntAsync();

                    int arlen = 0;

                    if (length - packetId.GetVarintLength() > -1)
                    {
                        arlen = length - packetId.GetVarintLength();
                    }

                    packetData = new byte[arlen];
                    await packetStream.ReadAsync(packetData, 0, packetData.Length);
                }
                catch
                {
                    throw;
                }
            }

            return(new EmptyPacket(packetId, packetData));
        }
Esempio n. 2
0
        private async Task <(int id, byte[] data)> GetNextPacketAsync()
        {
            int length = await this.minecraftStream.ReadVarIntAsync();

            byte[] receivedData = new byte[length];

            await this.minecraftStream.ReadAsync(receivedData, 0, length);

            int packetId = 0;

            byte[] packetData = Array.Empty <byte>();

            using (var packetStream = new MinecraftStream(receivedData))
            {
                try
                {
                    packetId = await packetStream.ReadVarIntAsync();

                    int arlen = 0;

                    if (length - packetId.GetVarIntLength() > -1)
                    {
                        arlen = length - packetId.GetVarIntLength();
                    }

                    packetData = new byte[arlen];
                    await packetStream.ReadAsync(packetData, 0, packetData.Length);
                }
                catch
                {
                    throw;
                }
            }

            return(packetId, packetData);
        }
Esempio n. 3
0
        public static async Task <T> DeserializeAsync <T>(byte[] data) where T : Packet
        {
            await using var stream = new MinecraftStream(data);
            var packet = (T)Activator.CreateInstance(typeof(T));//TODO make sure all packets have default constructors

            if (packet == null)
            {
                throw new NullReferenceException(nameof(packet));
            }

            //Program.PacketLogger.LogDebug($"Deserializing {packet}");

            var valueDict = packet.GetAllMemberNames().OrderBy(x => x.Key.Order);
            var members   = packet.GetType().GetMembers(PacketExtensions.Flags);

            int readableBytes = 0;

            foreach (var(key, value) in valueDict)
            {
                var member = members.FirstOrDefault(x => x.Name.EqualsIgnoreCase(value));

                if (member is FieldInfo field)
                {
                    var dataType = key.Type;

                    if (dataType == DataType.Auto)
                    {
                        dataType = field.FieldType.ToDataType();
                    }

                    var val = await stream.ReadAsync(field.FieldType, dataType, key);

                    //Program.PacketLogger.LogDebug($"Setting val {val}");

                    field.SetValue(packet, val);
                }
                else if (member is PropertyInfo property)
                {
                    var dataType = key.Type;

                    if (dataType == DataType.Auto)
                    {
                        dataType = property.PropertyType.ToDataType();
                    }

                    var val = await stream.ReadAsync(property.PropertyType, dataType, key, readableBytes);

                    //Program.PacketLogger.LogDebug($"Setting val {val}");

                    if (property.PropertyType.IsEnum && property.PropertyType == typeof(BlockFace))
                    {
                        val = (BlockFace)val;
                    }

                    property.SetValue(packet, val);
                }

                readableBytes = data.Length - (int)stream.Position;
            }

            return(packet);
        }