///////////////////////////////////////////////////////////////////////////////////////////////////////////////
#endregion
///////////////////////////////////////////////////////////////////////////////////////////////////////////////
///////////////////////////////////////////////////////////////////////////////////////////////////////////////
#region Refresh External IP Thread
///////////////////////////////////////////////////////////////////////////////////////////////////////////////
private void RefreshExternalIPThread()
{
Monitor.Enter(multiThreadLock);
OnDidBeginWorking();
IntPtr devlistP = IntPtr.Zero;
byte[] lanAddr = new byte[16];
byte[] externalAddr = new byte[16];
bool didFail = false;
devlistP = MiniUPnP.upnpDiscover(2500, IntPtr.Zero, IntPtr.Zero);
if (devlistP == IntPtr.Zero)
{
DebugLog.WriteLine("UPnP: No IDG Device found on the network (1)");
didFail = true;
}
else
{
MiniUPnP.UPNPDev devlist = MiniUPnP.PtrToUPNPDev(devlistP);
// Check all of the devices for reachability
bool foundIDGDevice = false;
MiniUPnP.UPNPDev device = devlist;
IPAddress routerIP = PortMapper.SharedInstance.RouterIPAddress;
List <String> descURLs = new List <String>();
bool done = false;
while (!done)
{
try
{
Uri uri = new Uri(device.descURL);
if (routerIP != null)
{
if (uri.Host == routerIP.ToString())
{
descURLs.Insert(0, device.descURL);
}
else
{
descURLs.Add(device.descURL);
}
}
else
{
descURLs.Add(device.descURL);
}
}
catch (Exception e)
{
DebugLog.WriteLine("UPnP: Error while inspecting url: {0}", device.descURL);
DebugLog.WriteLine("UPnP: Exception: {0}", e);
}
if (device.pNext == IntPtr.Zero)
{
done = true;
}
else
{
device = device.Next;
}
}
for (int i = 0; i < descURLs.Count && !foundIDGDevice; i++)
{
String url = descURLs[i];
DebugLog.WriteLine("UPnP: Trying URL: {0}", url);
// Reset service type.
// This will help us determine if the exception below can safely be ignored.
igddata.ServiceType = null;
int r = 0;
try
{
// r = MiniUPnP.UPNP_GetIGDFromUrl(url, ref urls, ref igddata, lanAddr, lanAddr.Length);
MiniUPnP.UPNPUrls_2 urls_2 = new MiniUPnP.UPNPUrls_2();
unsafe
{
r = MiniUPnP.UPNP_GetIGDFromUrl(url, &urls_2, ref igddata, lanAddr, lanAddr.Length);
MiniUPnP.FreeUPNPUrls(&urls_2);
}
// Find urls
GetUPNPUrls(url);
}
catch (AccessViolationException)
{
// I have no idea why the above method sometimes throws an AccessException.
// The odd part about it is that all the data gets marshaled over and back properly.
// So the exception can safely be ignored, it just bugs me because it feels like a hack.
DebugLog.WriteLine("Ignoring exception from method MiniUPnP.UPNP_GetIGDFromUrl");
if (igddata.ServiceType != null)
{
r = 1;
}
}
if (r == 1)
{
r = MiniUPnP.UPNPCOMMAND_UNKNOWN_ERROR;
try
{
r = MiniUPnP.UPNP_GetExternalIPAddress(urls.controlURL, igddata.ServiceType, externalAddr);
}
catch (AccessViolationException)
{
// I have no idea why the above method sometimes throws an AccessException.
// The odd part about it is that all the data gets marshaled over and back properly.
// So the exception can safely be ignored, it just bugs me because it feels like a hack.
DebugLog.WriteLine("Ignoring exception from method MiniUPnP.UPNP_GetExternalIPAddress");
if (externalAddr[0] != 0)
{
r = MiniUPnP.UPNPCOMMAND_SUCCESS;
}
}
if (r != MiniUPnP.UPNPCOMMAND_SUCCESS)
{
DebugLog.WriteLine("UPnP: GetExternalIPAddress returned {0}", r);
}
else
{
IPAddress externalIP;
IPAddress.TryParse(MiniUPnP.NullTerminatedArrayToString(externalAddr), out externalIP);
if (externalIP != null)
{
OnDidGetExternalIPAddress(externalIP);
foundIDGDevice = true;
didFail = false;
}
}
}
}
if (!foundIDGDevice)
{
DebugLog.WriteLine("UPnP: No IDG Device found on the network (2)");
didFail = true;
}
try
{
MiniUPnP.freeUPNPDevlist(devlistP);
}
catch (AccessViolationException)
{
// I have no idea why the above method sometimes throws an AccessException.
// The odd part about it is that all the data gets marshaled over and back properly.
// So the exception can safely be ignored, it just bugs me because it feels like a hack.
DebugLog.WriteLine("Ignoring exception from method MiniUPnP.freeUPNPDevlist");
}
}
Monitor.Exit(multiThreadLock);
if (refreshExternalIPThreadFlags != ThreadFlags.None)
{
if ((refreshExternalIPThreadFlags & ThreadFlags.ShouldRestart) > 0)
{
Refresh();
}
}
else
{
if (didFail)
{
OnDidFail();
}
else
{
UpdatePortMappings();
}
}
OnDidEndWorking();
}
private void DoUpdateExistingUPnPPortMappings()
{
List <ExistingUPnPPortMapping> existingMappings = new List <ExistingUPnPPortMapping>();
Dictionary <UInt16, ExistingUPnPPortMapping> existingMappingsUdpDict =
new Dictionary <UInt16, ExistingUPnPPortMapping>();
Dictionary <UInt16, ExistingUPnPPortMapping> existingMappingsTcpDict =
new Dictionary <UInt16, ExistingUPnPPortMapping>();
int r = 0;
int i = 0;
byte[] index = new byte[6];
byte[] intClient = new byte[16];
byte[] intPort = new byte[6];
byte[] extPort = new byte[6];
byte[] protocol = new byte[4];
byte[] desc = new byte[80];
byte[] enabled = new byte[6];
byte[] rHost = new byte[64];
byte[] duration = new byte[16];
do
{
// Convert "int i" to a null-terminated char array
String iStr = i.ToString();
int maxCount = Math.Min(iStr.Length, 5);
System.Text.Encoding.ASCII.GetBytes(iStr, 0, maxCount, index, 0);
// Reset all the other null-terminated char arrays
intClient[0] = 0;
intPort[0] = 0;
extPort[0] = 0;
protocol[0] = 0; // Warning - not in Cocoa version
desc[0] = 0;
enabled[0] = 0;
rHost[0] = 0;
duration[0] = 0;
r = MiniUPnP.UPNPCOMMAND_UNKNOWN_ERROR;
try
{
r = MiniUPnP.UPNP_GetGenericPortMappingEntry(urls.controlURL, igddata.ServiceType,
index,
extPort, intClient, intPort,
protocol, desc, enabled,
rHost, duration);
}
catch (AccessViolationException)
{
// I have no idea why the above method sometimes throws an AccessException.
// The odd part about it is that all the data gets marshaled over and back properly.
// So the exception can safely be ignored, it just bugs me because it feels like a hack.
DebugLog.WriteLine("Ignoring exception from method MiniUPnP.UPNP_GetGenericPortMappingEntry");
r = MiniUPnP.UPNPCOMMAND_SUCCESS;
}
if (r == MiniUPnP.UPNPCOMMAND_SUCCESS)
{
IPAddress iAddr;
IPAddress.TryParse(MiniUPnP.NullTerminatedArrayToString(intClient), out iAddr);
UInt16 iPort;
UInt16.TryParse(MiniUPnP.NullTerminatedArrayToString(intPort), out iPort);
UInt16 ePort;
UInt16.TryParse(MiniUPnP.NullTerminatedArrayToString(extPort), out ePort);
PortMappingTransportProtocol transportProtocol = 0;
String protocolStr = MiniUPnP.NullTerminatedArrayToString(protocol);
if (protocolStr.Equals("UDP", StringComparison.OrdinalIgnoreCase))
{
transportProtocol |= PortMappingTransportProtocol.UDP;
}
if (protocolStr.Equals("TCP", StringComparison.OrdinalIgnoreCase))
{
transportProtocol |= PortMappingTransportProtocol.TCP;
}
String description = MiniUPnP.NullTerminatedArrayToString(desc);
ExistingUPnPPortMapping existingPM;
existingPM = new ExistingUPnPPortMapping(iAddr, iPort, ePort, transportProtocol, description);
existingMappings.Add(existingPM);
if ((transportProtocol & PortMappingTransportProtocol.UDP) > 0)
{
existingMappingsUdpDict[ePort] = existingPM;
}
if ((transportProtocol & PortMappingTransportProtocol.TCP) > 0)
{
existingMappingsTcpDict[ePort] = existingPM;
}
DebugLog.WriteLine("Existing UPnP: {0}: {1} {2}->{3}:{4} ({5})",
i, protocolStr, ePort, iAddr, iPort, description);
}
i++;
} while ((r == MiniUPnP.UPNPCOMMAND_SUCCESS) && (updatePortMappingsThreadFlags == ThreadFlags.None));
// Update stored list of existing mappings
existingUPnPPortMappings = existingMappings;
existingUPnPPortMappingsUdpDict = existingMappingsUdpDict;
existingUPnPPortMappingsTcpDict = existingMappingsTcpDict;
}
