/// <summary>
/// Contains information about the location of a device on the network.
/// </summary>
/// <param name="Client">UPnP Client</param>
/// <param name="Headers">All headers in notification.</param>
/// <param name="LocalEndPoint">Local End Point.</param>
/// <param name="RemoteEndPoint">Remote End Point.</param>
internal NotificationEventArgs(UPnPClient Client, UPnPHeaders Headers, IPEndPoint LocalEndPoint, IPEndPoint RemoteEndPoint)
{
this.client = Client;
this.headers = Headers;
this.localEndPoint = LocalEndPoint;
this.remoteEndPoint = RemoteEndPoint;
}
/// <summary>
/// Contains information about the location of a device on the network.
/// </summary>
/// <param name="SearchTarget">SSDP Search Target</param>
/// <param name="Server">Server</param>
/// <param name="Location">Location of device information</param>
/// <param name="UniqueServiceName">Unique Service Name (USN)</param>
/// <param name="Headers">All headers in response.</param>
internal DeviceLocation(UPnPClient Client, string SearchTarget, string Server, string Location, string UniqueServiceName, UPnPHeaders Headers)
{
this.client = Client;
this.searchTarget = SearchTarget;
this.server = Server;
this.location = Location;
this.uniqueServiceName = UniqueServiceName;
this.headers = Headers;
}
private void EndReceiveIncoming(IAsyncResult ar)
{
try
{
UdpClient UdpClient = (UdpClient)ar.AsyncState;
IPEndPoint RemoteIP = null;
byte[] Packet = UdpClient.EndReceive(ar, ref RemoteIP);
string Header = Encoding.ASCII.GetString(Packet);
UPnPHeaders Headers = new UPnPHeaders(Header);
if (RemoteIP != null && Headers.Direction == HttpDirection.Request && Headers.HttpVersion >= 1.0)
this.HandleIncoming(UdpClient, RemoteIP, Headers);
UdpClient.BeginReceive(this.EndReceiveOutgoing, UdpClient);
}
catch (Exception ex)
{
this.RaiseOnError(ex);
}
}
private void HandleIncoming(UdpClient UdpClient, IPEndPoint RemoteIP, UPnPHeaders Headers)
{
switch (Headers.Verb)
{
case "M-SEARCH":
NotificationEventHandler h = this.OnSearch;
if (h != null)
{
try
{
h(this, new NotificationEventArgs(this, Headers, (IPEndPoint)UdpClient.Client.LocalEndPoint, RemoteIP));
}
catch (Exception ex)
{
this.RaiseOnError(ex);
}
}
break;
case "NOTIFY":
h = this.OnNotification;
if (h != null)
{
try
{
h(this, new NotificationEventArgs(this, Headers, (IPEndPoint)UdpClient.Client.LocalEndPoint, RemoteIP));
}
catch (Exception ex)
{
this.RaiseOnError(ex);
}
}
break;
}
}
private void EndReceiveOutgoing(IAsyncResult ar)
{
try
{
UdpClient UdpClient = (UdpClient)ar.AsyncState;
IPEndPoint RemoteIP = null;
byte[] Packet = UdpClient.EndReceive(ar, ref RemoteIP);
string Header = Encoding.ASCII.GetString(Packet);
UPnPHeaders Headers = new UPnPHeaders(Header);
if (RemoteIP != null && Headers.Direction == HttpDirection.Response && Headers.HttpVersion >= 1.0 && Headers.ResponseCode == 200)
{
if (!string.IsNullOrEmpty(Headers.Location))
{
UPnPDeviceLocationEventHandler h = this.OnDeviceFound;
if (h != null)
{
DeviceLocation DeviceLocation = new DeviceLocation(this, Headers.SearchTarget, Headers.Server, Headers.Location,
Headers.UniqueServiceName, Headers);
DeviceLocationEventArgs e = new DeviceLocationEventArgs(DeviceLocation, (IPEndPoint)UdpClient.Client.LocalEndPoint, RemoteIP);
try
{
h(this, e);
}
catch (Exception ex)
{
this.RaiseOnError(ex);
}
}
}
}
else if (Headers.Direction == HttpDirection.Request && Headers.HttpVersion >= 1.0)
this.HandleIncoming(UdpClient, RemoteIP, Headers);
UdpClient.BeginReceive(this.EndReceiveOutgoing, UdpClient);
}
catch (Exception ex)
{
this.RaiseOnError(ex);
}
}
