private void ProcessPacket(ClientPacket packet)
{
using var stream = new PacketCryptoStream(packet.Header.Seed, packet.Data);
using var reader = new BinaryReader(stream);
byte group = reader.ReadByte();
byte index = reader.ReadByte();
MessageOpcode opcode = (MessageOpcode)((group << 8) | index);
IReadable message = MessageManager.Instance.GetMessage(opcode);
if (message == null)
{
log.Warn($"Received unknown message {opcode}(0x{opcode:X})!");
return;
}
(MessageHandlerAttribute attribute, MessageHandlerDelegate @delegate) = MessageManager.Instance.GetMessageInformation(opcode);
if (attribute == null)
{
log.Warn($"Received unhandled message {opcode}(0x{opcode:X})!");
return;
}
if (state != attribute.State)
{
log.Warn($"Received message {opcode}(0x{opcode:X}) while in an invalid state!");
return;
}
log.Trace($"Received message {opcode}(0x{opcode:X}).");
message.Read(reader);
if (reader.BaseStream.Remaining() > 0)
{
log.Warn($"Failed to read entire contents of message {opcode}(0x{opcode:X})!");
}
try
{
@delegate.Invoke(this, message);
}
catch (Exception exception)
{
log.Error(exception);
}
}
public ServerPacket(MessageOpcode opcode, ushort seed, IWritable message)
{
using (var stream = new PacketCryptoStream(seed))
{
using var writer = new BinaryWriter(stream);
writer.Write((byte)((int)opcode >> 8));
writer.Write((byte)((int)opcode & 0xFF));
message.Write(writer);
Data = stream.ToArray();
}
Header = new PacketHeader
{
Seed = seed,
Length = (ushort)(Data.Length + PacketHeader.Size),
Unknown2 = 1
};
}
