private async void UpnpClient_OnDeviceFound(object Sender, DeviceLocationEventArgs e)
{
try
{
lock (this.ipAddressesFound)
{
if (this.ipAddressesFound.ContainsKey(e.RemoteEndPoint.Address))
{
return;
}
this.ipAddressesFound[e.RemoteEndPoint.Address] = true;
}
DeviceDescriptionDocument Doc = await e.Location.GetDeviceAsync();
if (Doc != null)
{
UPnPService Service = Doc.GetService("urn:schemas-upnp-org:service:WANIPConnection:1");
if (Service == null)
{
Service = Doc.GetService("urn:schemas-upnp-org:service:WANIPConnection:2");
if (Service == null)
{
return;
}
}
ServiceDescriptionDocument Scpd = await Service.GetServiceAsync();
this.ServiceRetrieved(Scpd, e.LocalEndPoint);
}
}
catch (Exception ex)
{
this.exception = ex;
this.State = PeerToPeerNetworkState.Error;
}
}
private void ServiceRetrieved(ServiceDescriptionDocument Scpd, IPEndPoint LocalEndPoint)
{
try
{
Dictionary <ushort, bool> TcpPortMapped = new Dictionary <ushort, bool>();
Dictionary <ushort, bool> UdpPortMapped = new Dictionary <ushort, bool>();
ushort PortMappingIndex;
bool TcpAlreadyRegistered = false;
bool UdpAlreadyRegistered = false;
this.serviceWANIPConnectionV1 = new WANIPConnectionV1(Scpd);
this.State = PeerToPeerNetworkState.RegisteringApplicationInGateway;
this.serviceWANIPConnectionV1.GetExternalIPAddress(out string NewExternalIPAddress);
this.externalAddress = IPAddress.Parse(NewExternalIPAddress);
if (!IsPublicAddress(this.externalAddress))
{
return; // TODO: Handle multiple layers of gateways.
}
PortMappingIndex = 0;
try
{
while (true)
{
this.serviceWANIPConnectionV1.GetGenericPortMappingEntry(PortMappingIndex, out string NewRemoteHost,
out ushort NewExternalPort, out string NewProtocol, out ushort NewInternalPort, out string NewInternalClient,
out bool NewEnabled, out string NewPortMappingDescription, out uint NewLeaseDuration);
if (NewPortMappingDescription == this.applicationName && NewInternalClient == LocalEndPoint.Address.ToString())
{
if (NewExternalPort == this.desiredExternalPort && this.desiredExternalPort != 0)
{
if (NewProtocol == "TCP")
{
TcpAlreadyRegistered = true;
PortMappingIndex++;
continue;
}
else if (NewProtocol == "UDP")
{
UdpAlreadyRegistered = true;
PortMappingIndex++;
continue;
}
}
this.serviceWANIPConnectionV1.DeletePortMapping(NewRemoteHost, NewExternalPort, NewProtocol);
}
else
{
switch (NewProtocol)
{
case "TCP":
TcpPortMapped[NewExternalPort] = true;
break;
case "UDP":
UdpPortMapped[NewExternalPort] = true;
break;
}
PortMappingIndex++;
}
}
}
catch (AggregateException ex)
{
if (!(ex.InnerException is UPnPException))
{
throw;
}
}
catch (UPnPException)
{
// No more entries.
}
this.localAddress = LocalEndPoint.Address;
ushort LocalPort, ExternalPort;
int i;
do
{
this.tcpListener = new TcpListener(this.localAddress, this.desiredLocalPort);
this.tcpListener.Start(this.backlog);
i = ((IPEndPoint)this.tcpListener.LocalEndpoint).Port;
LocalPort = (ushort)(i);
ExternalPort = this.desiredExternalPort == 0 ? LocalPort : (ushort)this.desiredExternalPort;
if (i < 0 || i > ushort.MaxValue || TcpPortMapped.ContainsKey(ExternalPort) || UdpPortMapped.ContainsKey(ExternalPort))
{
this.tcpListener.Stop();
this.tcpListener = null;
throw new ArgumentException("Port already assigned to another application in the network.", nameof(ExternalPort));
}
else
{
try
{
this.udpClient = new UdpClient(this.tcpListener.LocalEndpoint.AddressFamily);
this.udpClient.Client.Bind((IPEndPoint)this.tcpListener.LocalEndpoint);
}
catch (Exception)
{
this.tcpListener.Stop();
this.tcpListener = null;
}
}
}while (this.tcpListener == null);
this.localEndpoint = new IPEndPoint(this.localAddress, LocalPort);
if (!TcpAlreadyRegistered)
{
this.serviceWANIPConnectionV1.AddPortMapping(string.Empty, ExternalPort,
"TCP", LocalPort, LocalAddress.ToString(), true, this.applicationName, 0);
}
this.tcpMappingAdded = true;
if (!UdpAlreadyRegistered)
{
this.serviceWANIPConnectionV1.AddPortMapping(string.Empty, ExternalPort,
"UDP", LocalPort, LocalAddress.ToString(), true, this.applicationName, 0);
}
this.udpMappingAdded = true;
this.externalEndpoint = new IPEndPoint(this.externalAddress, ExternalPort);
this.State = PeerToPeerNetworkState.Ready;
this.AcceptTcpClients();
this.BeginReceiveUdp();
}
catch (Exception ex)
{
this.exception = ex;
this.State = PeerToPeerNetworkState.Error;
}
}
/// <summary>
/// Generated from SCPD
/// </summary>
public ContentDirectory(ServiceDescriptionDocument Service)
{
this.service = Service;
}
public ConnectionManager(ServiceDescriptionDocument Service)
{
this.service = Service;
}
public WFAWLANConfig(ServiceDescriptionDocument Service)
{
this.service = Service;
}
private void ServiceRetrieved(ServiceDescriptionDocument Scpd, IPEndPoint LocalEndPoint)
{
try
{
Dictionary <ushort, bool> TcpPortMapped = new Dictionary <ushort, bool>();
Dictionary <ushort, bool> UdpPortMapped = new Dictionary <ushort, bool>();
ushort PortMappingIndex;
this.serviceWANIPConnectionV1 = new WANIPConnectionV1(Scpd);
this.State = PeerToPeerNetworkState.RegisteringApplicationInGateway;
this.serviceWANIPConnectionV1.GetExternalIPAddress(out string NewExternalIPAddress);
this.externalAddress = IPAddress.Parse(NewExternalIPAddress);
Log.Informational("External IP Address: " + NewExternalIPAddress);
if (!IsPublicAddress(this.externalAddress))
{
Log.Warning("External IP Address not a public IP address.");
return; // TODO: Handle multiple layers of gateways.
}
PortMappingIndex = 0;
try
{
string LocalAddress = LocalEndPoint.Address.ToString();
while (true)
{
this.serviceWANIPConnectionV1.GetGenericPortMappingEntry(PortMappingIndex, out string NewRemoteHost,
out ushort NewExternalPort, out string NewProtocol, out ushort NewInternalPort, out string NewInternalClient,
out bool NewEnabled, out string NewPortMappingDescription, out uint NewLeaseDuration);
if (NewInternalClient != LocalAddress)
{
PortMappingIndex++;
continue;
}
bool Found = false;
foreach (InternetGatewayRegistration Registration in this.ports)
{
if ((Registration.ExternalPort != 0 && NewExternalPort == Registration.ExternalPort) ||
(Registration.ExternalPort == 0 && NewPortMappingDescription == Registration.ApplicationName))
{
if (NewProtocol == "TCP")
{
Found = true;
Registration.TcpRegistered = true;
break;
}
else if (NewProtocol == "UDP")
{
Found = true;
Registration.UdpRegistered = true;
break;
}
Log.Notice("Deleting Internet Gateway port mapping.",
new KeyValuePair <string, object>("Host", NewRemoteHost),
new KeyValuePair <string, object>("External Port", NewExternalPort),
new KeyValuePair <string, object>("Protocol", NewProtocol),
new KeyValuePair <string, object>("Local Port", NewInternalPort),
new KeyValuePair <string, object>("Local Address", NewInternalClient),
new KeyValuePair <string, object>("Application", NewPortMappingDescription));
this.serviceWANIPConnectionV1.DeletePortMapping(NewRemoteHost, NewExternalPort, NewProtocol);
}
}
if (Found)
{
PortMappingIndex++;
continue;
}
else
{
switch (NewProtocol)
{
case "TCP":
TcpPortMapped[NewExternalPort] = true;
break;
case "UDP":
UdpPortMapped[NewExternalPort] = true;
break;
}
PortMappingIndex++;
}
}
}
catch (AggregateException ex)
{
if (!(ex.InnerException is UPnPException))
{
System.Runtime.ExceptionServices.ExceptionDispatchInfo.Capture(ex).Throw();
}
}
catch (UPnPException)
{
// No more entries.
}
this.localAddress = LocalEndPoint.Address;
foreach (InternetGatewayRegistration Registration in this.ports)
{
this.BeforeRegistration(Registration, TcpPortMapped, UdpPortMapped);
if ((Registration.TcpRegistered || !Registration.Tcp) &&
(Registration.UdpRegistered || !Registration.Udp))
{
continue;
}
if (Registration.Tcp && !Registration.TcpRegistered)
{
Log.Notice("Adding Internet Gateway port mapping.",
new KeyValuePair <string, object>("Host", string.Empty),
new KeyValuePair <string, object>("External Port", Registration.ExternalPort),
new KeyValuePair <string, object>("Protocol", "TCP"),
new KeyValuePair <string, object>("Local Port", Registration.LocalPort),
new KeyValuePair <string, object>("Local Address", LocalAddress.ToString()),
new KeyValuePair <string, object>("Application", Registration.ApplicationName));
try
{
this.serviceWANIPConnectionV1.AddPortMapping(string.Empty, Registration.ExternalPort,
"TCP", Registration.LocalPort, LocalAddress.ToString(), true, Registration.ApplicationName, 0);
Registration.TcpRegistered = true;
}
catch (Exception ex)
{
Log.Error("Unable to register port in Internet Gateway: " + ex.Message,
new KeyValuePair <string, object>("External Port", Registration.ExternalPort),
new KeyValuePair <string, object>("Protocol", "TCP"),
new KeyValuePair <string, object>("Local Port", Registration.LocalPort),
new KeyValuePair <string, object>("Local Address", LocalAddress.ToString()),
new KeyValuePair <string, object>("Application", Registration.ApplicationName));
}
}
if (Registration.Udp && !Registration.UdpRegistered)
{
Log.Notice("Adding Internet Gateway port mapping.",
new KeyValuePair <string, object>("Host", string.Empty),
new KeyValuePair <string, object>("External Port", Registration.ExternalPort),
new KeyValuePair <string, object>("Protocol", "UDP"),
new KeyValuePair <string, object>("Local Port", Registration.LocalPort),
new KeyValuePair <string, object>("Local Address", LocalAddress.ToString()),
new KeyValuePair <string, object>("Application", Registration.ApplicationName));
try
{
this.serviceWANIPConnectionV1.AddPortMapping(string.Empty, Registration.ExternalPort,
"UDP", Registration.LocalPort, LocalAddress.ToString(), true, Registration.ApplicationName, 0);
Registration.UdpRegistered = true;
}
catch (Exception ex)
{
Log.Error("Unable to register port in Internet Gateway: " + ex.Message,
new KeyValuePair <string, object>("External Port", Registration.ExternalPort),
new KeyValuePair <string, object>("Protocol", "UDP"),
new KeyValuePair <string, object>("Local Port", Registration.LocalPort),
new KeyValuePair <string, object>("Local Address", LocalAddress.ToString()),
new KeyValuePair <string, object>("Application", Registration.ApplicationName));
}
}
}
this.State = PeerToPeerNetworkState.Ready;
}
catch (Exception ex)
{
Log.Critical(ex);
this.exception = ex;
this.State = PeerToPeerNetworkState.Error;
}
}
public ContentDirectory(ServiceDescriptionDocument Service)
{
this.service = Service;
}
/// <summary>
/// Generated from SCPD
/// </summary>
public WANEthernetLinkConfigV1(ServiceDescriptionDocument Service)
{
this.service = Service;
}
public WANCommonInterfaceConfig(ServiceDescriptionDocument Service)
{
this.service = Service;
}
public WANIPConnectionV1(ServiceDescriptionDocument Service)
{
this.service = Service;
}
public X_MS_MediaReceiverRegistrar(ServiceDescriptionDocument Service)
{
this.service = Service;
}
public ConnectionManager(ServiceDescriptionDocument Service)
{
this.service = Service;
}
public WANCommonInterfaceConfig(ServiceDescriptionDocument Service)
{
this.service = Service;
}
/// <summary>
/// Generated from SCPD
/// </summary>
public WANIPConnectionV1(ServiceDescriptionDocument Service)
{
this.service = Service;
}
public WFAWLANConfig(ServiceDescriptionDocument Service)
{
this.service = Service;
}
public Layer3Forwarding(ServiceDescriptionDocument Service)
{
this.service = Service;
}
/// <summary>
/// Generated from SCPD
/// </summary>
public X_MS_MediaReceiverRegistrar(ServiceDescriptionDocument Service)
{
this.service = Service;
}
public Layer3Forwarding(ServiceDescriptionDocument Service)
{
this.service = Service;
}
public WANEthernetLinkConfigV1(ServiceDescriptionDocument Service)
{
this.service = Service;
}
