private void deleteRuleButton_Click(object sender, EventArgs e)
{
try
{
FirewallConnection.Send_DeleteFirewallRule(ruleName);
}
catch (Exception ex)
{
Toast.MakeText(this, $"Error occured when deleting firewall rule. Error content: {ex.Message}", ToastLength.Short).Show();
}
StartActivity(typeof(FirewallActivity));
Finish();
}
private void SaveModifiedRuleButtonClick(object sender, EventArgs e)
{
var valid = true;
if (FirewallConnection.Get_RestrictionRulesNames().Contains(editRuleNameEditText.Text))
{
Toast.MakeText(this, $"Rule with this name already exist.", ToastLength.Short).Show();
valid = false;
}
if (string.IsNullOrEmpty(editRuleNameEditText.Text))
{
Toast.MakeText(this, $"Rule name can't be empty.", ToastLength.Short).Show();
valid = false;
}
if (!editRuleSourceMacEditText.Text.Any() &&
!editRuleSourceIpEditText.Text.Any() &&
!editRuleSourcePortEditText.Text.Any() &&
!editRuleDestinationIpEditText.Text.Any() &&
!editRuleDestinationPortEditText.Text.Any())
{
Toast.MakeText(this, $"You have to type at least one condition.", ToastLength.Short).Show();
valid = false;
}
const string validateMacPattern = @"^$|^(((([0-9A-Fa-f]{2}[:-]){5}([0-9A-Fa-f]{2})[,])*)(([0-9A-Fa-f]{2}[:-]){5}([0-9A-Fa-f]{2})))$";
const string validateIpPattern = @"^$|^((((([0-9]|[1-9][0-9]|1[0-9]{2}|2[0-4][0-9]|25[0-5])\.){3}([0-9]|[1-9][0-9]|1[0-9]{2}|2[0-4][0-9]|25[0-5])[,])*)((([0-9]|[1-9][0-9]|1[0-9]{2}|2[0-4][0-9]|25[0-5])\.){3}([0-9]|[1-9][0-9]|1[0-9]{2}|2[0-4][0-9]|25[0-5])))$";
const string validatePortPattern = @"^$|^((([0-9]{1,4}|[1-5][0-9]{4}|6[0-4][0-9]{3}|65[0-4][0-9]{2}|655[0-2][0-9]|6553[0-5])[,])|((([0-9]{1,4}|[1-5][0-9]{4}|6[0-4][0-9]{3}|65[0-4][0-9]{2}|655[0-2][0-9]|6553[0-5])([-])([0-9]{1,4}|[1-5][0-9]{4}|6[0-4][0-9]{3}|65[0-4][0-9]{2}|655[0-2][0-9]|6553[0-5]))[,]))*((([0-9]{1,4}|[1-5][0-9]{4}|6[0-4][0-9]{3}|65[0-4][0-9]{2}|655[0-2][0-9]|6553[0-5]))|(([0-9]{1,4}|[1-5][0-9]{4}|6[0-4][0-9]{3}|65[0-4][0-9]{2}|655[0-2][0-9]|6553[0-5])([-])([0-9]{1,4}|[1-5][0-9]{4}|6[0-4][0-9]{3}|65[0-4][0-9]{2}|655[0-2][0-9]|6553[0-5])))$";
if (!Regex.Match(editRuleSourceMacEditText.Text, validateMacPattern, RegexOptions.IgnoreCase).Success)
{
Toast.MakeText(this, $"You have typed source Mac in not proper format.", ToastLength.Short).Show();
valid = false;
}
if (!Regex.Match(editRuleSourceIpEditText.Text, validateIpPattern, RegexOptions.IgnoreCase).Success)
{
Toast.MakeText(this, $"You have typed source IP in not proper format.", ToastLength.Short).Show();
valid = false;
}
if (!Regex.Match(editRuleSourcePortEditText.Text, validatePortPattern, RegexOptions.IgnoreCase).Success)
{
Toast.MakeText(this, $"You have typed source port in not proper format.", ToastLength.Short).Show();
valid = false;
}
if (!Regex.Match(editRuleDestinationIpEditText.Text, validateIpPattern, RegexOptions.IgnoreCase).Success)
{
Toast.MakeText(this, $"You have typed destination IP in not proper format.", ToastLength.Short).Show();
valid = false;
}
if (!Regex.Match(editRuleDestinationPortEditText.Text, validatePortPattern, RegexOptions.IgnoreCase).Success)
{
Toast.MakeText(this, $"You have typed destination port in not proper format.", ToastLength.Short).Show();
valid = false;
}
if (!valid)
{
return;
}
FirewallConnection.Send_DeleteFirewallRule(ruleName);
var modifiedRule = new AddFirewallRuleViewModel
{
RuleName = ruleName,
FriendlyName = editRuleNameEditText.Text,
SourceMacs = editRuleSourceMacEditText.Text,
SourceIPs = editRuleSourceIpEditText.Text,
SourcePorts = editRuleSourcePortEditText.Text,
DestinationIPs = editRuleDestinationIpEditText.Text,
DestinationPorts = editRuleDestinationPortEditText.Text,
Enabled = editRuleEnabledCheckBox.Enabled ? "1" : "0"
};
FirewallConnection.Send_SaveFirewallRule(modifiedRule);
StartActivity(typeof(FirewallActivity));
Finish();
}
