private static void OnPacketAction(object sender, SnifferEventArgs e)
{
SWPacket p = e.Packet;
_lastSockId = e.SocketId;
PacketLogConsole(p, e.Outgoing);
PacketLogDisk(p, e.Outgoing);
}
private static void PacketLogConsole(SWPacket p, bool outgoing)
{
if (p.ID == 0x0106 || p.PacketType() == PacketType.ClientCharacterUpdateSpecialOptionList)
{
return; //keepalive-ish stuff
}
if ((p.ID & 0xFF00) == 0x0500)
{
return; //movement
}
Console.WriteLine($"{(outgoing ? "[OUT]" : "[IN] ")} {p}");
}
private static void PacketLogDisk(SWPacket p, bool outgoing)
{
if (p.ID == 0x0106 || p.PacketType() == PacketType.ClientCharacterUpdateSpecialOptionList)
{
return; //keepalive-ish stuff
}
if ((p.ID & 0xFF00) == 0x0500)
{
return; //movement
}
if (!Directory.Exists(_dirLog))
{
Directory.CreateDirectory(_dirLog);
}
string fileName = $"{(int)(DateTime.Now - _startTime).TotalMilliseconds:D7}ms_{(outgoing ? "Out" : "In_")}_{p.IDString()}_len{p.Data.Length}.bin";
File.WriteAllBytes(Path.Combine(_dirLog, fileName), p.Data);
}
/// <summary> Reads all packets from the message and invokes the event handlers. </summary>
protected override void HandlePacket(PipeMessage msg, bool outgoing)
{
Debug.Assert(msg.HasData);
var data = msg.Data;
int packetStart = 0;
while (packetStart < data.Length)
{
//read cleartext packet header
Debug.Assert(BitConverter.ToInt16(data, packetStart + 0) == 0x0002, "Unknown xor offset");
short packetLen = BitConverter.ToInt16(data, packetStart + 2);
//extract packet and parse it
byte[] slice = new byte[packetLen]; //TODO: C# 7 slicing
Array.Copy(data, packetStart, slice, 0, packetLen);
SWPacket p = SWPacket.Parse(slice);
PacketAction?.Invoke(this, new SnifferEventArgs(p, outgoing, msg.Header.SocketId));
//update packet start
packetStart += packetLen;
}
}
public static PacketType PacketType(this SWPacket p) => (PacketType)p.ID;
public static string IDString(this SWPacket p) => Enum.GetName(typeof(PacketType), (PacketType)p.ID) ?? p.ID.ToString("X4");
public SnifferEventArgs(SWPacket packet, bool outgoing, int socketId)
{
SocketId = socketId;
Packet = packet;
Outgoing = outgoing;
}
