private DiscordIpPort GetIPAndPortFromPacket(byte[] packet)
{
DiscordIpPort returnVal = new DiscordIpPort();
//quoth thy danny
//#the ip is ascii starting at the 4th byte and ending at the first null
int startingIPIndex = 4;
int endingIPIndex = 4;
for (int i = startingIPIndex; i < packet.Length; i++)
{
if (packet[i] != (byte)0)
{
endingIPIndex++;
}
else
{
break;
}
}
byte[] ipArray = new byte[endingIPIndex - startingIPIndex];
Buffer.BlockCopy(packet, startingIPIndex, ipArray, 0, ipArray.Length);
//quoth thy wise danny part two:
//# the port is a little endian unsigned short in the last two bytes
//# yes, this is different endianness from everything else
int port = packet[packet.Length - 2] | packet[packet.Length - 1] << 8;
returnVal.Address = IPAddress.Parse(System.Text.Encoding.ASCII.GetString(ipArray));
returnVal.port = port;
VoiceDebugLogger.Log($"Our IP is {returnVal.Address} and we're using port {returnVal.port}.");
return(returnVal);
}
/// <summary>
/// Sends our IP over UDP for Discord's voice server to process. Also sends op 1
/// </summary>
/// <param name="buffer">The byte[] returned after sending your ssrc.</param>
/// <returns></returns>
private async Task SendIPOverUDP(DiscordIpPort ipPort)
{
string msg = JsonConvert.SerializeObject(new
{
op = 1,
d = new
{
protocol = "udp",
data = new
{
address = ipPort.Address.ToString(),
port = ipPort.port,
mode = encryptionMode
}
}
});
VoiceDebugLogger.Log("Sending our IP over WebSocket ( " + msg.ToString() + " ) ");
VoiceWebSocket.Send(msg);
//await Task.Run(() => VoiceWebSocket.Send(msg)).ConfigureAwait(false); //idk lets try it
}