private void cmdCheckPorts_Click(object sender, EventArgs e)
{
DialogResult understood = MessageBox.Show("Before you proceed, you must keep in mind that in order to determine if" +
" a port is truly open, you need to have a service listening to that port.\n\n" +
"If no service is running behind the port, then the checker will report it as " +
"closed no matter if it was forwarded correctly or not.\n\nClick \"Yes\" if you understand this to proceed.",
"Information!", MessageBoxButtons.YesNo, MessageBoxIcon.Information);
if (understood == DialogResult.No)
{
return;
}
foreach (ListViewItem item in listPorts.Items)
{
PortMapping mapping = (PortMapping)item.Tag;
if (_portChecker.CheckPort(mapping.Protocol, _publicIp, mapping.Port))
{
item.Text = mapping.ToString() + " - Open";
}
else
{
item.Text = mapping.ToString() + " - Closed";
}
}
}
private void cmdAdd_Click(object sender, System.EventArgs e)
{
PortMapping mapping = FrmAddPort.GetPortMapping(this);
if (mapping == null)
{
return;
}
foreach (ListViewItem existingItem in listPorts.Items)
{
PortMapping addedMapping = (PortMapping)existingItem.Tag;
if (!addedMapping.Equals(mapping))
{
continue;
}
MessageBox.Show($"Port number {mapping.Port} is already added to the list.", "Port exists!", MessageBoxButtons.OK,
MessageBoxIcon.Exclamation);
return;
}
ListViewItem item = new ListViewItem(mapping.ToString())
{
Tag = mapping
};
listPorts.Items.Add(item);
}