public static void ForwardPort()
{
try
{
bool lbCompleted;
Services lsServices = Discovery.FindServices(
null,
2000, 0,
out lbCompleted,
AddressFamilyFlags.IPvBoth);
string ip = GetExternalIP(lsServices);
if (ip != null)
{
WanEndPoint = new IPEndPoint(IPAddress.Parse(ip), ListenPort);
}
RemovePort(lsServices, ListenPort);
ForwardPort(lsServices, ListenPort);
}
catch (Exception ex)
{
}
}
/// <summary>
/// Performs the search of the services.
/// </summary>
/// <param name="timeout">The timeout in milliseconds for the search.</param>
/// <param name="checkForAction">True to check for action before execution.</param>
/// <param name="verboseLog">True to write verbose UPnP log information.</param>
static void Search(int timeout, bool checkForAction, bool verboseLog)
{
// Write the settings
Console.WriteLine("Searching for UPnP services...");
Console.WriteLine(string.Format(" Timeout: {0}", (timeout == -1 ? "Indefinite" : string.Format("{0} ms", timeout))));
Console.WriteLine(string.Format(" Check service for action: {0}", checkForAction));
Console.WriteLine(string.Format(" Verbose UPnP Log: {0}", verboseLog));
Console.WriteLine();
if (verboseLog)
{
Console.WriteLine("Enabling verbose log...");
ManagedUPnP.Logging.Enabled = true;
ManagedUPnP.Logging.LogLines += new LogLinesEventHandler(Logging_LogLines);
Console.WriteLine();
}
const string csGetExternalIPAddressAction = "GetExternalIPAddress";
// Used in cache two services on a device return the same IP information
HashSet <string> lhsDone = new HashSet <string>();
// Find the services
bool lbCompleted;
Services lsServices = Discovery.FindServices(
null,
timeout, 0,
out lbCompleted,
AddressFamilyFlags.IPvBoth);
Console.WriteLine(string.Format("Found {0} services, Search Completed: {1}", lsServices.Count, lbCompleted));
Console.WriteLine();
// Scan the services and write the IP address
foreach (Service lsService in lsServices)
{
try
{
// Check for action if required
if (!checkForAction || lsService.Description().Actions.ContainsKey(csGetExternalIPAddressAction))
{
// Invoke the action
string lsIP;
lsService.InvokeAction <string>(csGetExternalIPAddressAction, out lsIP);
// Build the info string
string lsInfo =
String.Format(
"{0} => {1} - IP Address: {2}",
lsService.Device.RootDevice.FriendlyName,
lsService.Device.FriendlyName,
lsIP);
// If we havnt alread reported this info
if (!lhsDone.Contains(lsInfo))
{
// Report and add it
Console.WriteLine(lsInfo);
lhsDone.Add(lsInfo);
}
}
}
catch
{
}
}
}
/// <summary>
/// Enabled NAT Forwarding on all UPnP devices on the network (and opens Firewall) for the specified port on the local machine
/// </summary>
/// <param name="onPort">Port number to map</param>
/// <param name="verbose">Write detailed logs</param>
public static void EnableUPnP(int onPort, bool verbose)
{
try
{
bool searchCompleted;
if (verbose)
{
Log.AppLog.WriteEntry("UPnP", "Enabling Firewall for UPnP", Log.LogEntryType.Debug, true);
}
// Enable windows firewall for allowing UPnP (if it's not already enabled)
if (WindowsFirewall.UPnPPortsOpen != WindowsFirewall.Status.Open)
{
WindowsFirewall.UPnPPortsOpen = WindowsFirewall.Status.Open;
if (WindowsFirewall.UPnPPortsOpen != WindowsFirewall.Status.Open)
{
Log.AppLog.WriteEntry("UPnP", "Unable to open Windows Firewall UPnP ports, please MANUALLY ALLOW/ENABLE the UPnP ports (TCP:2869 and UDP:1900)", Log.LogEntryType.Warning, true);
Log.AppLog.WriteEntry("UPnP", "Windows Firewall Status -> " + WindowsFirewall.UPnPPortsOpen.ToString(), Log.LogEntryType.Warning, true);
}
}
if (verbose)
{
Log.AppLog.WriteEntry("UPnP", "Searching for UPnP devices", Log.LogEntryType.Debug, true);
}
// Search for UPnP devices
Services lsServices = Discovery.FindServices(null, int.MaxValue, int.MaxValue, out searchCompleted, AddressFamilyFlags.IPvBoth, true);
// Check for an incomplete search
if (!searchCompleted)
{
if (verbose)
{
Log.AppLog.WriteEntry("UPnP", "UPnP search incomplete, retrying again", Log.LogEntryType.Information, true);
}
lsServices = Discovery.FindServices(null, int.MaxValue, int.MaxValue, out searchCompleted, AddressFamilyFlags.IPvBoth, false);
if (!searchCompleted)
{
Log.AppLog.WriteEntry("UPnP", "UPnP search incomplete, UPnP enablement may not succeed", Log.LogEntryType.Warning, true);
}
}
foreach (ManagedUPnP.Service lsService in lsServices)
{
ServiceDescription lsdDesc = lsService.Description();
if (lsdDesc.Actions.ContainsKey("AddPortMapping")) // Check to see if is a WAN UPnP device that supports Port Mappings, if we so need to enable Port Forwarding for each such device
{
object[] inParams;
try
{
inParams = new object[] { "", onPort, "tcp" };
lsService.InvokeAction("DeletePortMapping", inParams); // Delete the port mapping (we will create a fresh one later)
}
catch (Exception)
{
}
// For the UPnP device, add a port mapping for each network interface adapter/IPaddress that can connect to the device
foreach (IPAddress ifAddress in lsService.Device.AdapterIPAddresses)
{
// IPv4 addressed UPnP devices cannot handle IPv6 address entries, so skip it (even if there is one IPv6 Host address, we can then process an IPv6 entry)
if (lsService.Device.RootHostAddresses.All(hostAddress => ((hostAddress.AddressFamily == System.Net.Sockets.AddressFamily.InterNetwork) && (ifAddress.AddressFamily == System.Net.Sockets.AddressFamily.InterNetworkV6))))
{
if (verbose)
{
Log.AppLog.WriteEntry("UPnP", "Skipping Port Mapping due to incompatible IPAddress Types. UPnP Device : " + lsService.Device.RootHostAddresses[0].ToString() + ", Adapter : " + ifAddress.ToString(), Log.LogEntryType.Debug, true);
}
continue;
}
try
{
// For some IPv6 addresses we need to remove the Interface Identifier from the string (%x at the end of the ip6 address) if present
if (verbose)
{
Log.AppLog.WriteEntry("UPnP", "Adding Port Mapping to " + (ifAddress.ToString().Contains("%") ? ifAddress.ToString().Substring(0, ifAddress.ToString().IndexOf("%")) : ifAddress.ToString()) + " Port " + onPort.ToString(), Log.LogEntryType.Debug, true);
}
// Now we add the port mapping for the current MCEBuddy server
inParams = new object[] { "", onPort, "tcp", onPort, (ifAddress.ToString().Contains("%") ? ifAddress.ToString().Substring(0, ifAddress.ToString().IndexOf("%")) : ifAddress.ToString()), true, "mcebuddy2x", 0 };
lsService.InvokeAction("AddPortMapping", inParams);
}
catch (Exception e)
{
if (verbose)
{
Log.AppLog.WriteEntry("UPnP", "Unable to Add Port Mapping to " + lsService.Device.RootHostName, Log.LogEntryType.Warning, true);
Log.AppLog.WriteEntry("UPnP", "Add Error " + e.ToString(), Log.LogEntryType.Warning, true);
}
}
}
}
lsService.Dispose(); // need to dispose else it causes a memory leakage
}
}
catch (Exception e)
{
Log.AppLog.WriteEntry("UPnP", "Error trying to enable UPnP -> " + e.ToString(), Log.LogEntryType.Warning, true);
}
}
/// <summary>
/// Disable NAT Forwarding on all UPnP devices on the network for the specified port on the local machine
/// </summary>
/// <param name="onPort">Port number to map</param>
/// <param name="verbose">Write detailed logs</param>
public static void DisableUPnP(int onPort, bool verbose)
{
try
{
bool searchCompleted;
if (verbose)
{
Log.AppLog.WriteEntry("UPnP", "Searching for UPnP devices", Log.LogEntryType.Debug, true);
}
// Search for UPnP devices
Services lsServices = Discovery.FindServices(null, int.MaxValue, int.MaxValue, out searchCompleted, AddressFamilyFlags.IPvBoth, false);
// Check for an incomplete search
if (!searchCompleted)
{
if (verbose)
{
Log.AppLog.WriteEntry("UPnP", "UPnP search incomplete, retrying again", Log.LogEntryType.Information, true);
}
lsServices = Discovery.FindServices(null, int.MaxValue, int.MaxValue, out searchCompleted, AddressFamilyFlags.IPvBoth, false);
if (!searchCompleted)
{
Log.AppLog.WriteEntry("UPnP", "UPnP search incomplete, UPnP enablement may not succeed", Log.LogEntryType.Warning, true);
}
}
foreach (ManagedUPnP.Service lsService in lsServices)
{
ServiceDescription lsdDesc = lsService.Description();
if (lsdDesc.Actions.ContainsKey("DeletePortMapping")) // Check to see if is a WAN UPnP device that supports Port Mappings, if we so need to disable Port Forwarding for each such device
{
object[] inParams;
try
{
if (verbose)
{
Log.AppLog.WriteEntry("UPnP", "Deleting Port Mapping from " + lsService.Device.RootHostName + " Port " + onPort.ToString(), Log.LogEntryType.Debug, true);
}
inParams = new object[] { "", onPort, "tcp" };
lsService.InvokeAction("DeletePortMapping", inParams); // Delete the port mapping (we will create a fresh one later)
}
catch (Exception e)
{
if (verbose)
{
Log.AppLog.WriteEntry("UPnP", "Unable to Delete Port Mapping from " + lsService.Device.RootHostName, Log.LogEntryType.Warning, true);
Log.AppLog.WriteEntry("UPnP", "Delete Error " + e.ToString(), Log.LogEntryType.Warning, true);
}
}
}
lsService.Dispose(); // need to dispose else it causes a memory leakage
}
}
catch (Exception e)
{
Log.AppLog.WriteEntry("UPnP", "Error trying to disable UPnP -> " + e.ToString(), Log.LogEntryType.Warning, true);
}
}
