public bool SelectDevice(string key)
{
SelectedDevice = Devices.Select(key);
return(SelectedDevice.Name.Length > 0);
}
public void SearchRenderers(bool output2console = false)
{
IPEndPoint localEndPoint = new IPEndPoint(IPAddress.Any, 0);
IPEndPoint multicastEndPoint = new IPEndPoint(IPAddress.Parse("239.255.255.250"), 1900);
Socket udpSocket = null;
StringBuilder sb = new StringBuilder();
try {
udpSocket = new Socket(AddressFamily.InterNetwork, SocketType.Dgram, ProtocolType.Udp);
udpSocket.SetSocketOption(SocketOptionLevel.Socket, SocketOptionName.ReuseAddress, true);
udpSocket.SetSocketOption(SocketOptionLevel.IP, SocketOptionName.AddMembership, new MulticastOption(multicastEndPoint.Address, IPAddress.Any));
udpSocket.SetSocketOption(SocketOptionLevel.IP, SocketOptionName.MulticastTimeToLive, 2);
udpSocket.SetSocketOption(SocketOptionLevel.IP, SocketOptionName.MulticastLoopback, true);
udpSocket.Bind(localEndPoint);
string SearchString = "M-SEARCH * HTTP/1.1\r\nHOST:239.255.255.250:1900\r\nMAN:\"ssdp:discover\"\r\nST:upnp:rootdevice\r\nMX:4\r\nUSER-AGENT: UDAP/2.0 UPnP/1.1 testdlna/1.0\r\n\r\n";
udpSocket.SendTo(Encoding.UTF8.GetBytes(SearchString), SocketFlags.None, multicastEndPoint);
if (output2console)
{
Console.WriteLine("M-Search sent...\r\n");
}
System.Threading.Thread.Sleep(4000);
byte[] ReceiveBuffer = new byte[64000];
int ReceivedBytes = 0;
while (udpSocket.Available > 0)
{
ReceivedBytes = udpSocket.Receive(ReceiveBuffer, SocketFlags.None);
if (ReceivedBytes > 0)
{
sb.Append(Encoding.UTF8.GetString(ReceiveBuffer, 0, ReceivedBytes));
}
}
} finally {
if (udpSocket != null)
{
udpSocket.Close();
}
}
string answer = sb.ToString();
if (output2console)
{
Console.WriteLine(answer);
}
MatchCollection mc = Regex.Matches(answer, @"HTTP/.*?\r\n\r\n", RegexOptions.Singleline);
foreach (Match m in mc)
{
string usn = GetAnswerValue(m.Value, "USN");
if (!Devices.Exists(usn))
{
UPnPDevice device = new UPnPDevice(usn);
device.Type = GetAnswerValue(m.Value, "ST");
device.Location = GetAnswerValue(m.Value, "LOCATION");
device.Server = GetAnswerValue(m.Value, "SERVER");
device.HeadersInfo = m.Value;
device.DeviceAddr = Regex.Match(device.Location, @"^.*?//[^/]+").Value;
if (device.Location.Length > 0)
{
string info = GetResponse(device.Location);
device.Name = GetXmlValue(info, "friendlyName");
device.Manufacturer = GetXmlValue(info, "manufacturer");
device.ModelName = GetXmlValue(info, "modelName");
device.UDN = GetXmlValue(info, "UDN");
device.Type = GetXmlValue(info, "deviceType");
MatchCollection mcServices = Regex.Matches(info, @"<service>.*?</service>", RegexOptions.Singleline);
foreach (Match s in mcServices)
{
UPnPService service = new UPnPService();
service.ServiceType = GetXmlValue(s.Value, "serviceType");
service.ServiceID = GetXmlValue(s.Value, "serviceId");
service.SCPDURL = device.DeviceAddr + GetXmlValue(s.Value, "SCPDURL");
service.ControlUrl = device.DeviceAddr + GetXmlValue(s.Value, "controlURL");
service.EventSubURL = device.DeviceAddr + GetXmlValue(s.Value, "eventSubURL");
device.Services.Add(service);
if (service.ServiceType.IndexOf("AVTransport") > 0)
{
device.Ready = true;
}
}
}
Devices.Add(device);
}
}
}
