public static async Task SendConnectTo(SessionBase session, RsaCrypt crypt, ulong key, string ip, ushort port, byte connection = 0)
{
var connectTo = new ConnectTo
{
Key = key,
Serial = 0xE,
Con = connection
};
// Fail
if (connectTo.Key == 0)
return;
var payloadData = new byte[0xFF];
var ipBytes = IPAddress.Parse(ip).GetAddressBytes();
// 0 - 15, Address, IPv6 not supported for now
payloadData[0] = ipBytes[0];
payloadData[1] = ipBytes[1];
payloadData[2] = ipBytes[2];
payloadData[3] = ipBytes[3];
// 16
payloadData[16] = 0x01;
// 17 - 20, adler32, changes with compression seed.
// Let's use a static one for now
payloadData[17] = 0x43;
payloadData[18] = 0xfd;
payloadData[19] = 0xb8;
payloadData[20] = 0x22;
// 21
payloadData[21] = 0x2A;
var portBytes = BitConverter.GetBytes(port);
// 22 - 23, Port
payloadData[22] = portBytes[0];
payloadData[23] = portBytes[1];
var msg = "Blossom opens above\nSpines rising to the air\nArctium Emu grows stronger\n";
// 24 - 94, Haiku
Array.Copy(Encoding.ASCII.GetBytes(msg), 0, payloadData, 24, 71);
// 94 - 125, static for now...
Array.Copy(new byte[] { 0xD6, 0xAC, 0x21, 0xE6, 0xB2, 0x7B, 0x06, 0x3D, 0xA9, 0x9C, 0x09, 0x4B, 0xC7, 0x30, 0x48, 0x34, 0xD4, 0xF0, 0x55, 0x3B, 0x1B, 0x1D, 0xC9, 0x5B, 0xFD, 0x3C, 0xB9, 0x30, 0x9D, 0xF5, 0x40, 0xC0 }, 0, payloadData, 94, 32);
// 126 - 233, 0 for now
Array.Copy(new byte[108], 0, payloadData, 126, 108);
// 234 - 253, ranodm for now
Array.Copy(new byte[0].GenerateRandomKey(20), 0, payloadData, 234, 20);
var dataOrder = new byte[payloadData.Length];
for (var i = 0; i < payloadData.Length; i++)
dataOrder[i] = payloadData[ConnectTo.PayloadOrder[i]];
var encrypted = crypt.Encrypt(dataOrder);
Array.Copy(encrypted, connectTo.Where, 0x100);
await session.Send(connectTo);
}
public static async void HandlePing(Ping ping, SessionBase session)
{
Log.Network($"Got ping with Serial: {ping.Serial}, Latency: {ping.Latency}.");
await session.Send(new Pong { Serial = ping.Serial });
}
public static async void HandleSuspendCommsAck(SuspendCommsAck suspendCommsAck, SessionBase session)
{
// Resume packets on main connection
await session.Send(new ResumeComms());
}