private static void DoStuff(string aesKey, string packetHex)
{
Console.WriteLine($"=========== Login packet inspection #{_packetCount++} ======================================");
var packet = HexUtil.StringToByteArray(packetHex);
var firstPacket = new PacketReader(packet, packet.Length);
var decryptme1 = firstPacket.ReadBytes(16);
var decryptme2 = firstPacket.ReadBytes(16);
var username = Utils.GetASCIIZ(Crypto.DecryptStaticBuffer(decryptme1));
Console.WriteLine($"{"Username:"******"{username}\"");
var secondPacket = new PacketReader(Crypto.DecryptStaticBuffer(decryptme2), 16);
secondPacket.Seek(0, SeekOrigin.Begin);
Console.WriteLine("SecondPacket:");
Console.WriteLine(HexUtil.HexDump(secondPacket.Buffer));
var authDword = secondPacket.ReadUInt32();
var unknown = secondPacket.ReadBytes(12);
Console.WriteLine($"{"AuthRandom:",-20}\"{authDword}\"");
Console.WriteLine("Unknown:");
Console.WriteLine(HexUtil.HexDump(unknown));
var secondPacketCrypto = new Crypto(aesKey);
var input = firstPacket.ReadBytes(32);
var output = new byte[24];
Console.WriteLine("Decrypt input:");
Console.WriteLine(HexUtil.HexDump(input));
if (!secondPacketCrypto.PacketDecrypt(input, ref output, 4114))
{
Console.ForegroundColor = ConsoleColor.Green;
Console.WriteLine("Login decryption failed.");
Console.ResetColor();
}
else
{
Console.WriteLine("Decrypt output:");
Console.WriteLine(HexUtil.HexDump(output));
var packetReader2 = new PacketReader(output, output.Length);
packetReader2.Seek(0, SeekOrigin.Begin);
var password = Utils.GetASCIIZ(packetReader2.ReadBytes(20));
Console.WriteLine($"{"Password:"******"{password}\"");
var clientVer = packetReader2.ReadUInt32();
Console.WriteLine($"{"ClientVer:",-20}\"{clientVer}\"");
}
}
// Server
private void ServerPacketProcessorOnPacketReceived(object sender, PacketReceivedEventArgs e)
{
var result = _packetModifier.ModifyPacket <PacketOutgoing>(e.Packet, out var manualDiscard);
if (result != null)
{
// Log.
Logger.Debug($"Server packet received [{e.Packet.Header,-4}] {result.PacketModified.HeaderType}");
if (result.ExtraPackets != null)
{
foreach (var packet in result.ExtraPackets)
{
Logger.Debug($"Server packet extra for {result.PacketModified.HeaderType} > {packet.HeaderType}.");
}
}
// Send.
Task.Run(() => SendToClientAsync(result.PacketModified));
if (result.ExtraPackets != null)
{
foreach (var packet in result.ExtraPackets)
{
Task.Run(() => SendToClientAsync(packet));
}
}
}
else if (manualDiscard)
{
Logger.Debug("Server packet {header} has been discarded manually.", e.Packet.Header);
}
else
{
Logger.Warning("Server packet {header} has been discarded, release {release}. Hex:\n" +
HexUtil.HexDump(e.Packet.GetPacket().ToArray()), e.Packet.Header, e.Packet.Release);
}
}
