private void DownloadStringCompleted(object sender, DownloadStringCompletedEventArgs args)
{
lock (stateObject)
{
try
{
if (args.Cancelled || isDisposing) // Must've been a shutdown
{
return;
}
if (args.Error != null ||
!IPAddress.TryParse(args.Result.Trim(), out IPAddress currentIPAddress) ||
(allowIPv4 && currentIPAddress.AddressFamily != AddressFamily.InterNetwork) ||
(allowIPv6 && currentIPAddress.AddressFamily != AddressFamily.InterNetworkV6))
{
// Something went wrong, try a different URL
if (IPFetchURLs.Length > 1) // If we only have one URL, we'll try next time
{
IncreaseFetchURLIndex();
FetchIPAsync();
}
return;
}
// Everything ok
if (!currentIPAddress.Equals(LastIPAddress)) // Check if we have a new IP address
{
IPAddress oldIPAddress = LastIPAddress;
IPAddress newIPAddress = currentIPAddress;
LastIPAddress = currentIPAddress;
Engine.Dispatcher.InvokeAsync(() =>
{
IPAddressChanged?.Invoke(this, oldIPAddress, newIPAddress);
});
}
}
finally
{
downloadsPending--;
Monitor.PulseAll(stateObject);
}
}
}
private void NetworkChange_NetworkAddressChanged(object sender, EventArgs e)
{
logger.LogInformation("IP address has changed in this computer");
IPAddressChanged?.Invoke(GetIpForAllInterfaces());
}