/// <summary>
/// Refresh the resolver list from the newest csv file.
/// </summary>
/// <exception cref="UnauthorizedAccessException"></exception>
/// <exception cref="NotSupportedException"></exception>
/// <exception cref="ArgumentOutOfRangeException"></exception>
/// <exception cref="ArgumentException"></exception>
/// <exception cref="ArgumentNullException"></exception>
public async void RefreshResolverListAsync()
{
IsRefreshingResolverList = true;
var state = await DnsCryptProxyListManager.UpdateResolverListAsync().ConfigureAwait(false);
await Task.Run(() =>
{
// we do this, to prevent excessive usage
Thread.Sleep(2000);
}).ConfigureAwait(false);
if (state)
{
var proxyList = Path.Combine(Directory.GetCurrentDirectory(),
Global.DnsCryptProxyFolder, Global.DnsCryptProxyResolverListName);
var proxyListSignature = Path.Combine(Directory.GetCurrentDirectory(),
Global.DnsCryptProxyFolder, Global.DnsCryptProxySignatureFileName);
var dnsProxyList =
DnsCryptProxyListManager.ReadProxyList(proxyList, proxyListSignature, _userData.UseIpv6);
if (dnsProxyList != null && dnsProxyList.Any())
{
Resolvers.Clear();
foreach (var dnsProxy in dnsProxyList)
{
if (
dnsProxy.ProviderPublicKey.Equals(
PrimaryDnsCryptProxyManager.DnsCryptProxy.Parameter.ProviderKey))
{
_primaryResolver = dnsProxy;
// restore the local port
_primaryResolver.LocalPort = PrimaryDnsCryptProxyManager.DnsCryptProxy.Parameter.LocalPort;
}
if (
dnsProxy.ProviderPublicKey.Equals(
SecondaryDnsCryptProxyManager.DnsCryptProxy.Parameter.ProviderKey))
{
_secondaryResolver = dnsProxy;
}
Resolvers.Add(dnsProxy);
}
}
}
else
{
_windowManager.ShowMetroMessageBox(
LocalizationEx.GetUiString("dialog_message_refresh_failed", Thread.CurrentThread.CurrentCulture),
LocalizationEx.GetUiString("dialog_warning_title", Thread.CurrentThread.CurrentCulture),
MessageBoxButton.OK, BoxType.Warning);
}
IsRefreshingResolverList = false;
}