public void OpenFile(object sender, RoutedEventArgs e)
{
OpenFileDialog openFileDialog = new OpenFileDialog {Filter = "*.hex|*.hex"};
if (openFileDialog.ShowDialog() == false)
return;
Session = new Session();
State = -1;
ServerBuffer = new byte[0];
ClientBuffer = new byte[0];
Packets = new List<Packet>();
PacketsList.Items.Clear();
using (FileStream fileStream = File.OpenRead(openFileDialog.FileName))
{
using (TextReader stream = new StreamReader(fileStream))
{
while (true)
{
string line = stream.ReadLine();
if (line == null)
break;
if (line.Length == 0)
continue;
if (State == -1)
{
State = 0;
continue;
}
bool isServer = line[0] == ' ';
string hex = line.Substring(isServer ? 14 : 10, 49).Replace(" ", "");
byte[] data = hex.ToBytes();
if (isServer)
{
AppendServerData(data);
// ReSharper disable CSharpWarnings::CS0642
while (ProcessServerData()) ;
// ReSharper restore CSharpWarnings::CS0642
}
else
{
AppendClientData(data);
// ReSharper disable CSharpWarnings::CS0642
while (ProcessClientData()) ;
// ReSharper restore CSharpWarnings::CS0642
}
}
}
}
SetText("Loaded " + Packets.Count + " packets...");
}
private static Session CreateSession(byte[] clientKey1, byte[] clientKey2, byte[] serverKey1, byte[] serverKey2)
{
var session = new Session();
session.ClientKey1 = clientKey1;
session.ClientKey2 = clientKey2;
session.ServerKey1 = serverKey1;
session.ServerKey2 = serverKey2;
session.Init();
return session;
}
private void Reset()
{
State = -1;
ClientPort = 0;
Session = new Session();
ServerBuffer = new byte[0];
ClientBuffer = new byte[0];
ServerSeqNum = 0;
ClientSeqNum = 0;
TcpBuffer = new PriorityQueue<PacketDotNet.TcpPacket>();
}
public GameProtocol(Session session)
{
Session = session;
}
private void TryInitialize()
{
if (Initialized)
throw new InvalidOperationException("Already initalized");
if (_client.Length < 256 || _server.Length < 256 + 4)
return;
_server.Position = 0;
_client.Position = 0;
var magicBytes = _server.ReadBytes(4);
if (!magicBytes.SequenceEqual(new byte[] { 1, 0, 0, 0 }))
throw new FormatException("Not a Tera connection");
var clientKey1 = _client.ReadBytes(128);
var clientKey2 = _client.ReadBytes(128);
var serverKey1 = _server.ReadBytes(128);
var serverKey2 = _server.ReadBytes(128);
_session = CreateSession(clientKey1, clientKey2, serverKey1, serverKey2);
ClientToServer(_client.ReadBytes((int)(_client.Length - _client.Position)));
ServerToClient(_server.ReadBytes((int)(_server.Length - _server.Position)));
_client = null;
_server = null;
}