/// <summary>
/// Initializes a new instance of the Service class.
/// </summary>
/// <param name="uri">Must specify device base uri, Because the description file does not contain uri.</param>
/// <param name="root">Root device.</param>
/// <param name="parent">Parent device.</param>
/// <param name="serviceNode">Service XmlNode.</param>
/// <param name="nm">XmlNamespaceManager.</param>
/// <exception cref="Exception"/>
public UPnPService(Uri uri, UPnPRootDevice root, UPnPDevice parent, XmlNode serviceNode, XmlNamespaceManager nm)
{
if (uri is null)
{
throw new ArgumentNullException(nameof(uri));
}
if (serviceNode is null)
{
throw new ArgumentNullException(nameof(serviceNode));
}
this.Root = root;
this.Parent = parent;
this.ServiceType = serviceNode.SelectSingleNode("ns:serviceType", nm).InnerText.Trim();
this.ServiceID = serviceNode.SelectSingleNode("ns:serviceId", nm).InnerText.Trim();
this.ScpdUrl = string.Format(CultureInfo.InvariantCulture, "{0}{1}", uri.AbsoluteUri, serviceNode.SelectSingleNode("ns:SCPDURL", nm).InnerText.Trim().Trim('/'));
this.ControlUrl = string.Format(CultureInfo.InvariantCulture, "{0}{1}", uri.AbsoluteUri, serviceNode.SelectSingleNode("ns:controlURL", nm).InnerText.Trim().Trim('/'));
this.EventSubUrl = string.Format(CultureInfo.InvariantCulture, "{0}{1}", uri.AbsoluteUri, serviceNode.SelectSingleNode("ns:eventSubURL", nm).InnerText.Trim().Trim('/'));
}
/// <summary>
/// Initializes a new instance of the Device class.
/// </summary>
/// <param name="uri">Must specify device base uri, Because the description file does not contain uri.</param>
/// <param name="root">Root device info.</param>
/// <param name="parent">Parent device.</param>
/// <param name="deviceNode">Device XmlNode.</param>
/// <param name="nm">XmlNamespaceManager.</param>
/// <exception cref="Exception"/>
public UPnPDevice(Uri uri, UPnPRootDevice root, UPnPDevice parent, XmlNode deviceNode, XmlNamespaceManager nm)
{
if (deviceNode is null)
{
throw new ArgumentNullException(nameof(deviceNode));
}
List <UPnPDevice> childDevices = new List <UPnPDevice>();
List <UPnPService> services = new List <UPnPService>();
//
this.Root = root;
this.Parent = parent;
this.DeviceType = deviceNode.SelectSingleNode("ns:deviceType", nm).InnerText.Trim();
this.FriendlyName = deviceNode.SelectSingleNode("ns:friendlyName", nm).InnerText.Trim();
this.Manufacturer = deviceNode.SelectSingleNode("ns:manufacturer", nm).InnerText.Trim();
this.ManufacturerUrl = deviceNode.SelectSingleNode("ns:manufacturerURL", nm).InnerText.Trim();
this.ModelDescription = deviceNode.SelectSingleNode("ns:modelDescription", nm).InnerText.Trim();
this.ModelName = deviceNode.SelectSingleNode("ns:modelName", nm).InnerText.Trim();
this.ModelNumber = deviceNode.SelectSingleNode("ns:modelNumber", nm).InnerText.Trim();
this.ModelUrl = deviceNode.SelectSingleNode("ns:modelURL", nm).InnerText.Trim();
this.SerialNumber = deviceNode.SelectSingleNode("ns:serialNumber", nm).InnerText.Trim();
this.Udn = deviceNode.SelectSingleNode("ns:UDN", nm).InnerText.Replace("uuid:", string.Empty).Trim();
XmlNodeList childDeviceNodes = deviceNode.SelectNodes("ns:deviceList/ns:device", nm);
//
foreach (XmlNode childDeviceNode in childDeviceNodes)
{
childDevices.Add(new UPnPDevice(uri, root, this, childDeviceNode, nm));
}
//
XmlNodeList serviceNodes = deviceNode.SelectNodes("ns:serviceList/ns:service", nm);
foreach (XmlNode serviceNode in serviceNodes)
{
services.Add(new UPnPService(uri, root, this, serviceNode, nm));
}
//
this.Devices = childDevices.ToArray();
this.Services = services.ToArray();
}
public static UPnPRootDevice[] Discover(AddressFamily addressFamilyFilter, int mx)
{
List <UPnPRootDevice> dis = new List <UPnPRootDevice>();
List <string> responses = new List <string>();
using (UdpClient client = new UdpClient(new IPEndPoint(IPAddress.Any, 0)))
{
client.Client.ReceiveTimeout = mx * 1000;
client.Client.ReceiveBufferSize = 8 * 1024;
client.Client.EnableBroadcast = true;
client.Client.MulticastLoopback = true;
client.Client.Ttl = 1;
client.Client.SetSocketOption(SocketOptionLevel.Socket, SocketOptionName.ReuseAddress, true);
StringBuilder request = new StringBuilder();
request.Append("M-SEARCH * HTTP/1.1\r\n");
request.Append("HOST: 239.255.255.250:1900\r\n");
request.Append("MAN: \"ssdp:discover\"\r\n");
request.Append("MX: " + mx + "\r\n");
request.Append("ST: upnp:rootdevice\r\n");
request.Append("\r\n");
byte[] data = Encoding.UTF8.GetBytes(request.ToString());
IPEndPoint ep = new IPEndPoint(IPAddress.Parse("239.255.255.250"), 1900);
client.Send(data, data.Length, ep);
while (true)
{
try
{
byte[] received = client.Receive(ref ep);
responses.Add(Encoding.UTF8.GetString(received));
}
catch (SocketException)
{
break;
}
}
}
if (responses.Count > 0)
{
using (WebClient wc = new WebClient())
{
foreach (string response in responses)
{
if (response.Contains("200 OK"))
{
string descriptionUrl;
string find;
int index;
int count;
find = "LOCATION:";
index = response.IndexOf(find, StringComparison.InvariantCulture);
if (index >= 0)
{
index += find.Length;
count = response.IndexOf("\r\n", index, StringComparison.InvariantCulture) - index;
if (count > 0)
{
descriptionUrl = response.Substring(index, count).Trim();
try
{
Uri uri = new Uri(descriptionUrl);
IPAddress ipAddress = IPAddress.Parse(uri.Host);
if ((addressFamilyFilter & ipAddress.AddressFamily) != ipAddress.AddressFamily)
{
continue;
}
}
catch
{
continue;
}
}
else
{
continue;
}
}
else
{
continue;
}
bool exist = false;
foreach (UPnPRootDevice di in dis)
{
if (descriptionUrl == di.DescriptionUrl)
{
exist = true;
break;
}
}
if (!exist)
{
try
{
byte[] down = wc.DownloadData(descriptionUrl);
UPnPRootDevice di = new UPnPRootDevice(descriptionUrl, Encoding.UTF8.GetString(down));
if (di is null)
{
continue;
}
else
{
dis.Add(di);
}
}
catch
{
continue;
}
}
}
}
}
}
return(dis.ToArray());
}
