public async Task ConnectAsync(ReceiverInfo receiverInfo)
{
await ConnectAsync(receiverInfo.IPAddress, receiverInfo.Port);
}
public void Connect(ReceiverInfo receiverInfo)
{
Connect(receiverInfo.IPAddress, receiverInfo.Port);
}
/// <summary>
/// Try to find ISCP devices on network.
/// </summary>
public static Task <List <ReceiverInfo> > DiscoverAsync(int millisecondsTimeout = 5000)
{
return(Task.Run(() =>
{
int onkyoPort = 60128;
byte[] onkyoMagic = new ISCPMessage("ECNQSTN").GetBytes("!x");
var foundReceivers = new List <ReceiverInfo>();
IEnumerable <string> ips = GetInterfaceAddresses();
// Broadcast magic
Socket socket = new Socket(AddressFamily.InterNetwork, SocketType.Dgram, ProtocolType.Udp);
using (socket)
{
socket.Blocking = false; // So we can use Poll
socket.EnableBroadcast = true;
socket.Bind(new IPEndPoint(IPAddress.Any, 0));
foreach (var i in ips)
{
try
{
var ip = IPAddress.Parse(i);
socket.SendTo(onkyoMagic, new IPEndPoint(ip, onkyoPort));
}
catch (SocketException)
{ }
}
EndPoint addr = new IPEndPoint(IPAddress.Broadcast, onkyoPort);
byte[] data = new byte[1024];
int read = 0;
while (true)
{
int microsecondTimeout = (int)(millisecondsTimeout * 1000);
if (!socket.Poll(microsecondTimeout, SelectMode.SelectRead))
{
break;
}
read = socket.ReceiveFrom(data, ref addr);
var msg = ISCPMessage.Parse(data);
// Return string looks something like this:
// !1ECNTX-NR609/60128/DX
GroupCollection info = Regex.Match(msg.ToString(),
//@"!" +
//@"(?<device_category>\d)" +
@"ECN" +
@"(?<model_name>[^/]*)/" +
@"(?<iscp_port>\d{5})/" +
@"(?<area_code>\w{2})/" +
@"(?<identifier>.*)"
).Groups;
IPAddress adr = (addr as IPEndPoint).Address;
if (!foundReceivers.Any(p => p.IPAddress == adr))
{
var ri = new ReceiverInfo
{
Port = Int32.Parse(info["iscp_port"].Value),
Model = info["model_name"].Value,
IPAddress = adr
};
foundReceivers.Add(ri);
}
}
}
return foundReceivers;
}));
}