private async Task AddPortMapping()
{
this.ClearOutputAction();
this.PrintEntry();
PortMappingEntry entry = new PortMappingEntry();
this.PrintOutputAction("Remote host:");
if (IPAddress.TryParse(this.GetInputFunc(), out IPAddress remote))
{
entry.RemoteHost = remote;
}
this.PrintOutputAction("External port:");
entry.ExternalPort = UInt16.TryParse(this.GetInputFunc(), out UInt16 res) ? res : (ushort)1;
this.PrintOutputAction("Internal host:");
entry.InternalHost = IPAddress.TryParse(this.GetInputFunc(), out IPAddress internalHost) ? internalHost : IPAddress.None;
this.PrintOutputAction("internal port:");
entry.InternalPort = UInt16.TryParse(this.GetInputFunc(), out UInt16 res2) ? res2 : (ushort)1;
this.PrintOutputAction("Protocol (UDP, TCP, ESP, GRE)");
entry.PortMappingProtocol = (PortMappingProtocol)Enum.Parse(typeof(PortMappingProtocol), this.GetInputFunc());
entry.Enabled = true;
this.PrintOutputAction("Description:");
entry.Description = this.GetInputFunc();
await this._client.AddPortMappingAsync(entry);
this.PrintOutputAction("Port mapping added");
}
bool getMappingEntryWithIndex(int index, out PortMappingEntry pm)
{
pm = new PortMappingEntry();
XmlDocument xResponse = null;
string txtError = null;
string SOAPbody = "<u:GetGenericPortMappingEntry xmlns:u=\"urn:schemas-upnp-org:service:" + ServiceName + ":1\">" +
"<NewPortMappingIndex>" + index.ToString().Trim() + "</NewPortMappingIndex>" +
"</u:GetGenericPortMappingEntry>";
string SOAPfunction = "GetGenericPortMappingEntry";
if (TrySubmitSOAPRequest(SOAPbody,
SOAPfunction,
ref txtError,
ref xResponse) != NatHelperReponseCodes.OK)
{
return(false); // end of entries?
}
try
{
XmlNamespaceManager nsMgr = new XmlNamespaceManager(xResponse.NameTable);
nsMgr.AddNamespace("tns", "urn:schemas-upnp-org:device-1-0");
XmlNode nd = null;
int i = 0;
// External Port
nd = xResponse.SelectSingleNode("//NewExternalPort/text()", nsMgr);
if ((nd != null) && (!(string.IsNullOrWhiteSpace(nd.Value))))
{
if (Int32.TryParse(nd.Value, out i))
{
pm.ExternalPort = i;
}
}
// Internal Port
nd = xResponse.SelectSingleNode("//NewInternalPort/text()", nsMgr);
if ((nd != null) && (!(string.IsNullOrWhiteSpace(nd.Value))))
{
if (Int32.TryParse(nd.Value, out i))
{
pm.InternalPort = i;
}
}
// Internal Client
nd = xResponse.SelectSingleNode("//NewInternalClient/text()", nsMgr);
if ((nd != null) && (!(string.IsNullOrWhiteSpace(nd.Value))))
{
pm.InternalClient = nd.Value;
}
// Description
nd = xResponse.SelectSingleNode("//NewPortMappingDescription/text()", nsMgr);
if ((nd != null) && (!(string.IsNullOrWhiteSpace(nd.Value))))
{
pm.Description = nd.Value;
}
// Protocol
nd = xResponse.SelectSingleNode("//NewProtocol/text()", nsMgr);
if ((nd != null) && (!(string.IsNullOrWhiteSpace(nd.Value))))
{
PortMappingEntry.PortMappingEntryProtocolTypes result = 0;
if (Enum.TryParse <PortMappingEntry.PortMappingEntryProtocolTypes>(nd.Value, out result))
{
pm.Protocol = result;
}
}
// Enabled
nd = xResponse.SelectSingleNode("//NewEnabled/text()", nsMgr);
if ((nd != null) && (!(string.IsNullOrWhiteSpace(nd.Value))))
{
bool b = false;
// ENUM PARSE
if (bool.TryParse(nd.Value, out b))
{
pm.Enabled = b;
}
else if (Int32.TryParse(nd.Value, out i))
{
pm.Enabled = (i == 1);
}
}
// Lease
nd = xResponse.SelectSingleNode("//NewLeaseDuration/text()", nsMgr);
if ((nd != null) && (!(string.IsNullOrWhiteSpace(nd.Value))))
{
if (Int32.TryParse(nd.Value, out i))
{
pm.LeaseDuration = i;
}
}
return(true);
}
catch {
Functions.WriteLineToLogFileIfAdvanced("NATHelper: SOAP: Couldn't get or parse port mapping entry. InnerXML: " + xResponse.InnerXml);
return(false);
}
}
bool getMappingEntryWithIndex(int index, out PortMappingEntry pm)
{
pm = new PortMappingEntry();
XmlDocument xResponse = null;
string txtError = null;
string SOAPbody = "<u:GetGenericPortMappingEntry xmlns:u=\"urn:schemas-upnp-org:service:" + ServiceName + ":1\">" +
"<NewPortMappingIndex>" + index.ToString().Trim() + "</NewPortMappingIndex>" +
"</u:GetGenericPortMappingEntry>";
string SOAPfunction = "GetGenericPortMappingEntry";
if (TrySubmitSOAPRequest(SOAPbody,
SOAPfunction,
ref txtError,
ref xResponse) != NatHelperReponseCodes.OK)
{
return false; // end of entries?
}
try
{
XmlNamespaceManager nsMgr = new XmlNamespaceManager(xResponse.NameTable);
nsMgr.AddNamespace("tns", "urn:schemas-upnp-org:device-1-0");
XmlNode nd = null;
int i = 0;
// External Port
nd = xResponse.SelectSingleNode("//NewExternalPort/text()", nsMgr);
if ( (nd != null) && (!(string.IsNullOrWhiteSpace( nd.Value ))) )
{
if (Int32.TryParse(nd.Value, out i))
pm.ExternalPort = i;
}
// Internal Port
nd = xResponse.SelectSingleNode("//NewInternalPort/text()", nsMgr);
if ((nd != null) && (!(string.IsNullOrWhiteSpace(nd.Value))))
{
if (Int32.TryParse(nd.Value, out i))
pm.InternalPort = i;
}
// Internal Client
nd = xResponse.SelectSingleNode("//NewInternalClient/text()", nsMgr);
if ((nd != null) && (!(string.IsNullOrWhiteSpace(nd.Value))))
pm.InternalClient = nd.Value;
// Description
nd = xResponse.SelectSingleNode("//NewPortMappingDescription/text()", nsMgr);
if ((nd != null) && (!(string.IsNullOrWhiteSpace(nd.Value))))
pm.Description = nd.Value;
// Protocol
nd = xResponse.SelectSingleNode("//NewProtocol/text()", nsMgr);
if ((nd != null) && (!(string.IsNullOrWhiteSpace(nd.Value))))
{
PortMappingEntry.PortMappingEntryProtocolTypes result = 0;
if (Enum.TryParse<PortMappingEntry.PortMappingEntryProtocolTypes>(nd.Value, out result))
pm.Protocol = result;
}
// Enabled
nd = xResponse.SelectSingleNode("//NewEnabled/text()", nsMgr);
if ((nd != null) && (!(string.IsNullOrWhiteSpace(nd.Value))))
{
bool b = false;
// ENUM PARSE
if (bool.TryParse(nd.Value, out b))
pm.Enabled = b;
else if (Int32.TryParse(nd.Value, out i))
pm.Enabled = (i == 1);
}
// Lease
nd = xResponse.SelectSingleNode("//NewLeaseDuration/text()", nsMgr);
if ((nd != null) && (!(string.IsNullOrWhiteSpace(nd.Value))))
{
if (Int32.TryParse(nd.Value, out i))
pm.LeaseDuration = i;
}
return true;
}
catch {
Functions.WriteLineToLogFileIfAdvanced("NATHelper: SOAP: Couldn't get or parse port mapping entry. InnerXML: " + xResponse.InnerXml);
return false;
}
}
private void UPnPTimerCallback(object state)
{
try
{
DefaultNetworkInfo defaultNetworkInfo = NetUtilities.GetDefaultNetworkInfo();
if (defaultNetworkInfo == null)
{
//no internet available;
_upnpStatus = UPnPStatus.NoInternetConnection;
return;
}
if (defaultNetworkInfo.IsPublicIP)
{
//public ip so no need to do port forwarding
_upnpStatus = UPnPStatus.PortForwardingNotRequired;
return;
}
IPEndPoint LocalNetworkEP = new IPEndPoint(defaultNetworkInfo.LocalIP, ((IPEndPoint)_tcpListener.LocalEndpoint).Port);
try
{
if ((_upnp == null) || (!_upnp.NetworkBroadcastAddress.Equals(defaultNetworkInfo.BroadcastIP)))
{
_upnp = InternetGatewayDevice.Discover(defaultNetworkInfo.BroadcastIP, 30000);
}
}
catch
{
_upnpStatus = UPnPStatus.UPnPDeviceNotFound;
throw;
}
//find external ip from router
try
{
IPAddress externalIP = _upnp.GetExternalIPAddress();
if (!_externalSelfEP.Address.Equals(externalIP))
{
_externalSelfEP = new IPEndPoint(externalIP, _externalSelfEP.Port);
}
}
catch
{ }
int externalPort = LocalNetworkEP.Port;
bool isTCPMapped = false;
try
{
int loopCount = 0;
while (true)
{
PortMappingEntry portMap = _upnp.GetSpecificPortMappingEntry(ProtocolType.Tcp, externalPort);
if (portMap == null)
{
break; //port available
}
if (portMap.InternalEP.Equals(LocalNetworkEP))
{
//port already mapped with us
isTCPMapped = true;
_upnpStatus = UPnPStatus.PortForwarded;
break;
}
//find new port for mapping
if (externalPort < ushort.MaxValue)
{
externalPort++;
}
else
{
externalPort = 1024;
}
if (loopCount > ushort.MaxValue)
{
return;
}
loopCount++;
}
}
catch { }
if (!isTCPMapped)
{
try
{
_upnp.AddPortMapping(ProtocolType.Tcp, externalPort, LocalNetworkEP, "BitChat - TCP");
if (_externalSelfEP.Port != externalPort)
{
_externalSelfEP = new IPEndPoint(_externalSelfEP.Address, externalPort);
}
_upnpStatus = UPnPStatus.PortForwarded;
Debug.Write("BitChatClient.UPnPTimerCallback", "tcp port mapped " + externalPort);
}
catch
{
try
{
_upnp.DeletePortMapping(ProtocolType.Tcp, externalPort);
_upnp.AddPortMapping(ProtocolType.Tcp, externalPort, LocalNetworkEP, "BitChat - TCP");
if (_externalSelfEP.Port != externalPort)
{
_externalSelfEP = new IPEndPoint(_externalSelfEP.Address, externalPort);
}
_upnpStatus = UPnPStatus.PortForwarded;
Debug.Write("BitChat.UPnPTimerCallback", "tcp port mapped " + externalPort);
}
catch { }
}
}
}
catch (Exception ex)
{
Debug.Write("BitChat.UPnPTimerCallback", ex);
}
finally
{
if (_upnpTimer != null)
{
switch (_upnpStatus)
{
case Connections.UPnPStatus.UPnPDeviceNotFound:
_upnpTimer.Change(10000, Timeout.Infinite);
break;
default:
_upnpTimer.Change(UPNP_TIMER_INTERVAL, Timeout.Infinite);
break;
}
}
}
}
