public static async Task <List <EasyTouchUnit> > Find()
{
var units = new List <EasyTouchUnit>();
var myIP = GetMyIP();
if (myIP == null)
{
return(units);
}
using (var udpClient = new UdpClient(new IPEndPoint(myIP, 53112))
{
EnableBroadcast = true,
MulticastLoopback = false,
})
{
await udpClient.SendAsync(broadcastData, broadcastData.Length, new IPEndPoint(IPAddress.Broadcast, multicastPort));
var buf = await udpClient.ReceiveAsync().TimeoutAfter(TimeSpan.FromSeconds(1));
if (buf.RemoteEndPoint != null)
{
var findServerResponse = new EasyTouchUnit(buf);
if (findServerResponse.IsValid)
{
units.Add(findServerResponse);
}
}
}
return(units);
}
public async Task <bool> ConnectTo(EasyTouchUnit unit, string?password = null)
{
if (unit?.IPAddress == null)
{
return(false);
}
if (client != null)
{
client.Dispose();
}
client = new TcpClient();
await client.ConnectAsync(unit.IPAddress, unit.Port);
var stream = client.GetStream();
stream.Write(ConnectionMessageBytes);
Debug.WriteLine("sending challenge string");
stream.SendHLMessage(new Messages.ChallengeString());
var recvBuf = new byte[8];
var readBytes = await stream.ReadAsync(recvBuf);
Debug.WriteLine("read {0} bytes (header)", readBytes);
var recvBody = new byte[Messages.HLMessage.ExtractDataSize(recvBuf)];
if (recvBody.Length == 0)
{
return(false);
}
readBytes = await stream.ReadAsync(recvBody);
Debug.WriteLine("read {0} bytes (body)", readBytes);
string challengeStr = Messages.HLMessageTypeHelper.ExtractString(recvBody);
Debug.WriteLine("sending login message");
stream.SendHLMessage(CreateLoginMessage(new HLEncoder(password).GetEncryptedPassword(challengeStr)));
readBytes = await stream.ReadAsync(recvBuf);
Debug.WriteLine("read {0}", readBytes);
recvBody = new byte[Messages.HLMessage.ExtractDataSize(recvBuf)];
if (recvBody.Length > 0)
{
await stream.ReadAsync(recvBody);
}
return(recvBuf[2] == Messages.ClientLogin.LoginAnswerId);
}
public static async Task <EasyTouchUnit?> GetGatewayInfo(string systemName, short senderId = 0)
{
using var client = new TcpClient();
await client.ConnectAsync(ServerDispatcherURL, ServerDispatcherPort);
var ns = client.GetStream();
ns.SendHLMessage(new Messages.GetGatewayData(senderId)
{
GatewayName = systemName
});
var msg = await UnitConnection.BuildMessageFromStream <Messages.GetGatewayData>(ns);
if (msg == null)
{
return(null);
}
return(EasyTouchUnit.Create(new Messages.GetGatewayData(msg)));
}
