public async Task <P2PConnectionImpl> Run()
{
try
{
m_Socket = new UdpSocket();
m_Socket.Bind();
var stunResult = await StunClient.Run(m_Socket.m_UdpClient, m_StunURL, 19302, m_Token);
var response = await m_Func(stunResult, m_Token);
m_Token.ThrowIfCancellationRequested();
return(new P2PConnectionImpl(response, m_Socket));
}
catch (Exception ex)
{
Log.Exception(ex);
m_Socket.Dispose();
throw;
}
}
/// <summary>
/// Retrieves an enumerable collection of th XMPP client's external IP
/// addresses.
/// </summary>
/// <returns>An enumerable collection of the XMPP client's external IP
/// addresses.</returns>
/// <exception cref="NotSupportedException">The external IP address(es)
/// could not be determined.</exception>
/// <remarks>In simple configurations this should usually yield one external
/// IP address only.</remarks>
IEnumerable <IPAddress> GetExternalAddresses()
{
// Use a set so we don't get duplicate addresses.
ISet <IPAddress> set = new HashSet <IPAddress>();
try {
set.Add(serverIpCheck.GetExternalAddress());
} catch {
// Fall through if server does not support the 'Server IP Check' extension.
}
// Next, try to retrieve external IP addresses from UPnP-enabled devices.
if (UseUPnP)
{
#if WINDOWSPLATFORM
try {
foreach (var address in UPnP.GetExternalAddresses())
{
set.Add(address);
}
} catch (Exception) {
// Fall through in case any device querying goes wrong.
}
#endif
}
// Finally, perform a STUN query.
try {
set.Add(StunClient.Query(StunServer.Host, StunServer.Port, 3000));
} catch {
// Nothing to do here.
}
// See if we could gather any external addresses at all.
if (set.Count == 0)
{
throw new NotSupportedException("The external IP address(es) could not " +
"be obtained.");
}
return(set);
}
private IEnumerable <IPAddress> GetExternalAddresses()
{
ISet <IPAddress> set = new HashSet <IPAddress>();
try
{
set.Add(this.serverIpCheck.GetExternalAddress());
}
catch
{
}
if (this.UseUPnP)
{
try
{
foreach (IPAddress address in UPnP.GetExternalAddresses())
{
set.Add(address);
}
}
catch (Exception)
{
}
}
try
{
set.Add(StunClient.Query(this.StunServer.Host, this.StunServer.Port, 0xbb8));
}
catch
{
}
if (set.Count == 0)
{
throw new NotSupportedException("The external IP address(es) could not be obtained.");
}
return(set);
}
