private void scanNICs()
{
// Clear network interfaces if not empty already
if (NIC_select.Items.Count > 0)
{
NIC_select.Items.Clear();
}
foreach (NetworkInterface nic in NetworkInterface.GetAllNetworkInterfaces())
{
if (activeNICsCB.Checked && nic.OperationalStatus != OperationalStatus.Up)
{
continue;
}
ComboboxItem item = new ComboboxItem();
item.Text = nic.Description.ToString();
item.Value = nic;
NIC_select.Items.Add(item);
}
// Restore selected NIC from settings if saved
if (!string.IsNullOrEmpty(Settings.Default.NIC))
{
NIC_select.SelectedIndex = NIC_select.FindStringExact(Settings.Default.NIC);
}
}
public MainMenu()
{
AutoUpdater.Start("https://www.tryallthethings.xyz/downloads/DNS-Swapper.xml");
InitializeComponent();
// Upgrade settings file (user.config in %LOCALAPPDATA%\DNS_Swapper from previous version
Settings.Default.Upgrade();
// Load network interfaces
scanNICs();
// Load previously saved user settings
NIC_select.SelectedIndex = NIC_select.FindStringExact(Settings.Default.NIC);
// Remove blank in IP-Address
string DNS1_var = Settings.Default.DNS_1.Replace(" ", string.Empty);
string DNS2_var = Settings.Default.DNS_2.Replace(" ", string.Empty);
// Variables used for validated IP-Addresses
IPAddress DNS1_IP = new IPAddress(new byte[] { 127, 0, 0, 1 });
IPAddress DNS2_IP = new IPAddress(new byte[] { 127, 0, 0, 1 });
if (string.IsNullOrEmpty(DNS1_var) || string.IsNullOrEmpty(DNS2_var))
{
// No DNS servers configured
MessageBox.Show("Tool not configured yet", "DNS-Swapper configuration missing", MessageBoxButtons.OK, MessageBoxIcon.Information);
Show();
WindowState = FormWindowState.Normal;
ShowInTaskbar = true;
}
else
{
// Validate configuration
if (IPAddress.TryParse(DNS1_var, out DNS1_IP) && IPAddress.TryParse(DNS2_var, out DNS2_IP))
{
// DNS server IPs valid
// Set Loaded variables into settings text boxes
DNS_1.Text = DNS1_var;
DNS_2.Text = DNS2_var;
// Set taskbar icon color
if (NIC_select.SelectedItem != null && !string.IsNullOrEmpty(DNS_1.Text) && !string.IsNullOrEmpty(DNS_2.Text))
{
if (NetworkManagement.getDNS(NIC_select.SelectedItem.ToString()).Equals(DNS1_IP))
{
taskBarIcon.Icon = Resource1.icon_red;
changeToggleBtnPosition(false);
}
else if (NetworkManagement.getDNS(NIC_select.SelectedItem.ToString()).Equals(DNS2_IP))
{
taskBarIcon.Icon = Resource1.icon_blue;
changeToggleBtnPosition(true);
}
}
}
else
{
// DNS server IP(s) invalid - display error message
MessageBox.Show("Invalid configuration detected. Resetting settings to default", "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
resetToolStripMenuItem_Click(null, null);
saveSettings();
Show();
WindowState = FormWindowState.Normal;
ShowInTaskbar = true;
}
}
}
