private unsafe void OnGameDataReceived(IAsyncResult async)
{
SocketState state = (SocketState)async.AsyncState;
if (state == null || state.GameSocket == null || !state.GameSocket.Connected)
{
return;
}
try
{
// receive data from the socket
int received = state.GameSocket.EndReceive(async);
if (received == 0)
{
return;
}
var buffer = state.GameBuffer;
using (var ms = new MemoryStream(buffer, 0, received))
{
if (!state.SendingEncoded)
{
using (var reader = new StreamReader(ms))
{
var asciValue = reader.ReadToEnd();
Log("CHATDATA", asciValue);
ms.Position = 0;
var line = reader.ReadLine();
if (line.StartsWith("CRYPT"))
{
state.SendingEncoded = true;
/*if (line.Contains("whammer40kdc"))
* {
* Gamename = "whammer40kdc".ToAssciiBytes();
* Gamekey = "Ue9v3H".ToAssciiBytes();
* }*/
if (line.Contains("whamdowfr"))
{
Gamename = "whamdowfr".ToAssciiBytes();
Gamekey = "pXL838".ToAssciiBytes();
}
if (Gamekey == null)
{
state.Dispose();
return;
}
var chall = "0000000000000000".ToAssciiBytes();
var receivingGameKey = new ChatCrypt.GDCryptKey();
var sendingGameKey = new ChatCrypt.GDCryptKey();
var receivingServerKey = new ChatCrypt.GDCryptKey();
var sendingServerKey = new ChatCrypt.GDCryptKey();
fixed(byte *challPtr = chall)
{
fixed(byte *gamekeyPtr = Gamekey)
{
ChatCrypt.GSCryptKeyInit(receivingGameKey, challPtr, gamekeyPtr, Gamekey.Length);
ChatCrypt.GSCryptKeyInit(sendingGameKey, challPtr, gamekeyPtr, Gamekey.Length);
ChatCrypt.GSCryptKeyInit(receivingServerKey, challPtr, gamekeyPtr, Gamekey.Length);
ChatCrypt.GSCryptKeyInit(sendingServerKey, challPtr, gamekeyPtr, Gamekey.Length);
}
}
state.ReceivingGameKey = receivingGameKey;
state.SendingGameKey = sendingGameKey;
state.ReceivingServerKey = receivingServerKey;
state.SendingServerKey = sendingServerKey;
// Send to server without encoding
_serverSocket.Send(buffer, received, SocketFlags.None);
}
else
{
// Send to server without encoding
_serverSocket.Send(buffer, received, SocketFlags.None);
}
}
}
else
{
using (var reader = new BinaryReader(ms, Encoding.ASCII))
{
var start = ms.Position;
var bytes = reader.ReadBytes((int)(ms.Length - ms.Position));
if (state.SendingEncoded)
{
byte *bytesPtr = stackalloc byte[bytes.Length];
for (int i = 0; i < bytes.Length; i++)
{
bytesPtr[i] = bytes[i];
}
ChatCrypt.GSEncodeDecode(state.ReceivingGameKey, bytesPtr, bytes.Length);
for (int i = 0; i < bytes.Length; i++)
{
bytes[i] = bytesPtr[i];
}
}
var utf8value = Encoding.UTF8.GetString(bytes);
Log("CHATDATA", utf8value);
if (utf8value.StartsWith("LOGIN", StringComparison.OrdinalIgnoreCase))
{
var nick = utf8value.Split(' ')[2];
ChatNick = nick;
SendToServerSocket(ref state, bytes);
goto CONTINUE;
}
if (utf8value.StartsWith("USRIP", StringComparison.OrdinalIgnoreCase))
{
SendToServerSocket(ref state, bytes);
goto CONTINUE;
}
var hostAddressIndex = utf8value.IndexOf(HOST_ADDRESS_TOKEN, StringComparison.OrdinalIgnoreCase);
if (hostAddressIndex != -1)
{
var port = CutPortValue(utf8value, hostAddressIndex + HOST_ADDRESS_TOKEN.Length, out string portString);
port = ByteHelpers.ReverseEndian16(port);
var hostSteamId = PortBindingManager.GetSteamIdByPort(port);
if (!hostSteamId.HasValue)
{
port = ByteHelpers.ReverseEndian16(port);
hostSteamId = PortBindingManager.GetSteamIdByPort(port);
}
if (hostSteamId.HasValue)
{
utf8value = utf8value.Replace(HOST_ADDRESS_TOKEN + portString, HOST_ADDRESS_TOKEN + hostSteamId.Value.m_SteamID);
}
}
var index = utf8value.IndexOf("#GSP!whamdowfr!", StringComparison.OrdinalIgnoreCase);
if (index != -1)
{
var encodedEndPoint = utf8value.Substring(index + 15, 10);
CSteamID steamId;
if (ServerListReport.CurrentUserRoomHash == encodedEndPoint)
{
steamId = SteamUser.GetSteamID();
}
else
{
if (!ServerListRetrieve.IDByChannelCache.TryGetValue(encodedEndPoint, out steamId))
{
ServerListReport.CurrentUserRoomHash = encodedEndPoint;
steamId = SteamUser.GetSteamID();
}
}
utf8value = utf8value.Replace(encodedEndPoint, steamId.m_SteamID.ToString());
SendToServerSocket(ref state, Encoding.UTF8.GetBytes(utf8value));
goto CONTINUE;
}
// 16777343 ~ 1.0.0.127 inversed port 63349 port
// :QWEQWE!X44vf1Wf1X|[email protected] PRIVMSG elamaunt :ACTION 7; 16777343; 63349; 16777343; 63349; 1;
SendToServerSocket(ref state, bytes);
}
}
}
}
catch (ObjectDisposedException)
{
if (state != null)
{
state.Dispose();
}
state = null;
return;
}
catch (SocketException e)
{
switch (e.SocketErrorCode)
{
case SocketError.ConnectionReset:
if (state != null)
{
state.Dispose();
}
state = null;
return;
case SocketError.Disconnecting:
if (state != null)
{
state.Dispose();
}
state = null;
return;
default:
LogError(Category, "Error receiving data");
LogError(Category, String.Format("{0} {1}", e.SocketErrorCode, e));
if (state != null)
{
state.Dispose();
}
state = null;
return;
}
}
catch (Exception e)
{
LogError(Category, "Error receiving data");
LogError(Category, e.ToString());
}
// and we wait for more data...
CONTINUE : WaitForGameData(state);
}
