public string LocalizedString(string key, string defaultText = null)
{
return(__LocalizedStrings.LocalizedString(key, defaultText));
}
/// <summary>
/// Checks if keys should be re-generated and regenerate them (if necessary).
/// </summary>
/// <remarks>
/// All exceptions will be logged and suppressed.
/// </remarks>
/// <returns>
/// TRUE - if key upgrade not required or upgrade was success
/// FALSE - when upgrade was failed
/// </returns>
private async Task <bool> DoRegenerateKeysIfNecessary()
{
// turn off timer
__CheckTimer.Change(Timeout.Infinite, Timeout.Infinite);
if (!IsCanUpdateKey() || !__AppSettings.IsUserLoggedIn())
{
return(true);
}
bool isError = false;
bool isGenerated = false;
try
{
if (__AppSettings.IsWireGuardCredentialsAvailable() && KeysExpiryDate <= DateTime.Now)
{
OnProgress(__LocalizedStrings.LocalizedString("WG_Label_KeysGenerating", "Generating new keys..."));
string[] keys = await VpnProtocols.WireGuard.Keys.GenerateKeysAsync();
string newPrivateKey = keys[0];
string newPublicKey = keys[1];
OnProgress(__LocalizedStrings.LocalizedString("WG_Label_KeysUploading", "Uploading key to IVPN server..."));
try
{
var calcelationSource = new CancellationTokenSource();
IPAddress ip = await ApiServices.Instance.WireguardKeySet(
publicKey : newPublicKey,
old_key : __AppSettings.WireGuardClientPublicKey,
calcelationSource.Token);
__AppSettings.SetWireGuardCredentials(newPrivateKey, newPublicKey, false, ip.ToString());
isGenerated = true;
}
catch (RESTApi.IVPNRestRequestApiException restEx)
{
throw restEx;
}
}
}
catch (RESTApi.IVPNRestRequestApiException)
{
throw;
}
catch (Exception ex)
{
isError = true;
Logging.Info("ERROR: failed to regenerate WireGuard keys: " + ex);
}
finally
{
TimeSpan interval = KeysExpiryDate - DateTime.Now;
if (isError == false && interval.TotalMinutes >= RetryCheckDelayOnFailMins)
{
// No errors. (Update succes or no regeneration required)
if (isGenerated) // If new key was generated
{
__AppSettings.Save();
}
// Start next check on KeysExpiryDate (execute timer only once)
__CheckTimer.Change(interval, new TimeSpan(0, 0, 0, 0, -1));
}
else
{
// Update failed - try to regenerate in 'RetryCheckDelayOnFailMins'
TimeSpan retryInterval = new TimeSpan(0, (int)RetryCheckDelayOnFailMins, 0);
if (interval.Ticks > 0 && retryInterval > interval)
{
retryInterval = interval;
}
__CheckTimer.Change(retryInterval, new TimeSpan(0, 0, 0, 0, -1));
}
OnProgress("");
}
return(!isError);
}
