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 is null) && Headers.Direction == HttpDirection.Response && Headers.HttpVersion >= 1.0 && Headers.ResponseCode == 200)
{
if (!string.IsNullOrEmpty(Headers.Location))
{
UPnPDeviceLocationEventHandler h = this.OnDeviceFound;
if (!(h is 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);
}
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);
}
}
private void upnpClient_OnDeviceFound(UPnPClient Sender, DeviceLocationEventArgs e)
{
try
{
lock (this.ipAddressesFound)
{
if (this.ipAddressesFound.ContainsKey(e.RemoteEndPoint.Address))
return;
this.ipAddressesFound[e.RemoteEndPoint.Address] = true;
}
e.Location.StartGetDevice(this.DeviceRetrieved, e);
}
catch (Exception ex)
{
this.exception = ex;
this.State = PeerToPeerNetworkState.Error;
}
}