/// <summary>
/// Parses the handshake from the received data
/// </summary>
private int ParseHandshake()
{
int offset = 0;
ushort length = BitConverter.ToUInt16(DataBuffer, 0);
offset = (HandshakeHeaderLength + length);
byte[] handshakeData = new ArraySegment <byte>(DataBuffer, HandshakeHeaderLength, length).ToArray();
PacketReader reader = new PacketReader(ref handshakeData, IncomingPacketType.NoHeader);
ushort version = reader.ReadUInt16();
ushort subversion = Convert.ToUInt16(reader.ReadMapleString());
uint localVector = reader.ReadUInt32();
uint remoteVector = reader.ReadUInt32();
byte locale = reader.ReadInt8();
byte isLoginContext = 255;
if (reader.AbsoluteLength >= 15) //Decode CRC 'n shit
{
isLoginContext = reader.ReadInt8();
}
LocalCipher.Initialize(localVector, version);
RemoteCipher.Initialize(remoteVector, version);
HandshakeReceived?.Invoke(version, subversion, locale, isLoginContext);
Handshaken = true;
return(offset);
}
/// <summary>
/// Prepares a packet to be sent and sends it onto the Socket
/// </summary>
public void SendPacket(PacketWriter packet, bool reusePacket)
{
if (!Connected)
{
//TODO: Notify main thread of possible error
return;
}
if (!reusePacket)
{
WritePacketLength(ref packet._DataBuffer, packet.Position);
LocalCipher.Encrypt(ref packet._DataBuffer, packet.Position);
Send(ref packet._DataBuffer, packet.Position);
}
else
{
byte[] data = packet;
WritePacketLength(ref data, data.Length);
LocalCipher.Encrypt(ref data, data.Length);
Send(ref data, data.Length);
}
}
