public bool TryGetPacket(out Message p)
{
p = null;
bool result = false;
if (DataStream.Count >= 5)
{
int length = (DataStream[2] << 16) | (DataStream[3] << 8) | DataStream[4];
ushort type = (ushort)((DataStream[0] << 8) | DataStream[1]);
if (DataStream.Count - 7 >= length)
{
object obj;
byte[] packet = DataStream.Take(7 + length).ToArray();
using (PacketReader br = new PacketReader(new MemoryStream(packet)))
obj = MessageFactory.Read(this, br, type);
if (obj != null)
{
p = (Message)obj;
result = true;
}
else
{
#if DEBUG
if (!Directory.Exists("unhandled-message-dumps"))
{
Directory.CreateDirectory("unhandled-message-dumps");
}
var time = DateTime.Now;
var fileName = $"{time.ToString("yy_MM_dd__hh_mm_ss")} - ({length})({type}).bin";
var path = Path.Combine("unhandled-message-dumps", fileName);
File.WriteAllBytes(path, packet);
#endif
if (Constants.IsRc4)
{
//Update Decryption Key
Decrypt(DataStream.Skip(7).Take(length).ToArray());
}
else
{
CSNonce.Increment();
}
}
DataStream.RemoveRange(0, 7 + length);
}
}
return(result);
}
public bool TryGetPacket(out Message _Message)
{
_Message = null;
bool result = false;
if (DataStream.Count >= 5)
{
int length = (DataStream[2] << 16) | (DataStream[3] << 8) | DataStream[4];
ushort type = (ushort)((DataStream[0] << 8) | DataStream[1]);
if (DataStream.Count - 7 >= length)
{
object obj;
byte[] packet = DataStream.Take(7 + length).ToArray();
using (PacketReader br = new PacketReader(new MemoryStream(packet)))
{
obj = MessageFactory.Read(this, br, type);
}
if (obj != null)
{
_Message = (Message)obj;
result = true;
}
else
{
if (Constants.IsRc4)
{
Decrypt(DataStream.Skip(7).Take(length).ToArray());
}
else
{
CSNonce.Increment();
}
}
DataStream.RemoveRange(0, 7 + length);
}
else
{
DataStream.RemoveRange(0, 7 + length);
this.Socket.Close();
}
}
return(result);
}
public bool TryGetPacket(out Message message)
{
const int HEADER_LEN = 7;
message = default(Message);
var result = false;
if (DataStream.Count >= 5)
{
// Get packet length and type but ignore packet version.
int length = (DataStream[2] << 16) | (DataStream[3] << 8) | DataStream[4];
ushort type = (ushort)((DataStream[0] << 8) | DataStream[1]);
if (DataStream.Count - HEADER_LEN >= length)
{
// Avoid LINQ cause we can.
var packet = new byte[length];
for (int i = 0; i < packet.Length; i++)
{
packet[i] = DataStream[i + HEADER_LEN];
}
message = (Message)MessageFactory.Read(this, new PacketReader(packet), type);
if (message != null)
{
message.SetData(packet);
message.SetMessageType(type); // Just in case they don't do it in the constructor.
try { message.Decrypt(); }
catch (Exception ex)
{
ExceptionLogger.Log(ex, $"Unable to decrypt message with ID: {type}");
}
try { message.Decode(); }
catch (Exception ex)
{
ExceptionLogger.Log(ex, $"Unable to decode message with ID: {type}");
}
result = true;
}
else
{
Logger.Say("Unhandled message " + type);
// Make sure we don't break the RC4 stream.
if (Constants.IsRc4)
{
Decrypt(packet);
}
else
{
CSNonce.Increment();
}
}
// Clean up.
DataStream.RemoveRange(0, HEADER_LEN + length);
}
}
return(result);
}
