private async void SaveProxyButtonClickAsync(Object sender, EventArgs e)
{
if (_addressTextBox.Text == Globals.ProxyAddress.GetValue() &&
_portTextBox.Text == Globals.ProxyPort.GetValue().ToString() &&
_loginTextBox.Text == Globals.ProxyLogin.GetValue() &&
_passwordTextBox.Text == Globals.ProxyPassword.GetValue())
{
Close();
return;
}
if (_addressTextBox.Text == @"127.0.0.1" && String.IsNullOrEmpty(_loginTextBox.Text) && String.IsNullOrEmpty(_passwordTextBox.Text))
{
ResetProxy();
Close();
return;
}
Int32.TryParse(_portTextBox.Text, out Int32 port);
if (!NetworkUtils.ValidatePort(port))
{
new MessageForm(Globals.Localization.InvalidProxyPort, Globals.Localization.Error, Images.Basic.Warning, Images.Basic.Warning,
MessageBoxButtons.OK, new[] { Globals.Localization.OK }).ShowDialog();
return;
}
WebProxy proxy = ProxyUtils.CreateProxy(_addressTextBox.Text, port, _loginTextBox.Text, _passwordTextBox.Text);
Task <HttpStatusCode> checkTask = ProxyUtils.CheckProxyAsync(proxy);
_addressTextBox.Enabled = false;
_portTextBox.Enabled = false;
_loginTextBox.Enabled = false;
_passwordTextBox.Enabled = false;
_resetProxyButton.Enabled = false;
_saveProxyButton.Enabled = false;
HttpStatusCode check = HttpStatusCode.ServiceUnavailable;
if (await Task.WhenAny(checkTask, Task.Delay(3000)).ConfigureAwait(true) == checkTask)
{
check = await checkTask.ConfigureAwait(true);
}
switch (check)
{
case HttpStatusCode.OK:
Globals.WebProxy = proxy;
Globals.ProxyAddress.SetValue(_addressTextBox.Text);
Globals.ProxyPort.SetValue(port);
Globals.ProxyLogin.SetValue(_loginTextBox.Text);
Globals.ProxyPassword.SetValue(_passwordTextBox.Text);
Close();
break;
case HttpStatusCode.Forbidden:
new MessageForm(Globals.Localization.ProxyConnectionInvalid, Globals.Localization.Error, Images.Basic.Warning, Images.Basic.Warning,
MessageBoxButtons.OK, new[] { Globals.Localization.OK }).ShowDialog();
break;
case HttpStatusCode.ProxyAuthenticationRequired:
new MessageForm(Globals.Localization.InvalidProxyCredentials, Globals.Localization.Error, Images.Basic.Warning, Images.Basic.Warning,
MessageBoxButtons.OK, new[] { Globals.Localization.OK }).ShowDialog();
break;
case HttpStatusCode.ServiceUnavailable:
new MessageForm(Globals.Localization.ProxyIsUnreachable, Globals.Localization.Error, Images.Basic.Warning, Images.Basic.Warning,
MessageBoxButtons.OK, new[] { Globals.Localization.OK }).ShowDialog();
break;
default:
new MessageForm($"{Globals.Localization.UnknownError}\n{check}", Globals.Localization.Error, Images.Basic.Warning, Images.Basic.Warning,
MessageBoxButtons.OK, new[] { Globals.Localization.OK }).ShowDialog();
break;
}
_addressTextBox.Enabled = true;
_portTextBox.Enabled = true;
_loginTextBox.Enabled = true;
_passwordTextBox.Enabled = true;
_resetProxyButton.Enabled = true;
CheckAddressValid();
}