// Updates the active/inactive status of all configured profiles, based on current network status.
private void UpdateProfileStatus(bool force = false)
{
// Track whether anything changed, to avoid unnecessary GUI updates when nothing has changed.
bool anything_changed = false;
// Search all profiles
foreach (var p in Profiles)
{
// Search all network interfaces
bool found = false;
for (int i = 0; (!found) && (i < dgNetworks.RowCount); i++)
{
// Check whether the current network interface matches the configured
// recognition method for the profile.
switch (p.RecMethod)
{
case RecognizerMethod.DNS_Suffix:
if (NullSafeCompare(dgNetworks.Rows[i].Cells["DNS_Suffix"].Value, p.RecData, CaseInsensitive: true))
{
found = true;
}
break;
case RecognizerMethod.WiFi_SSID:
if (NullSafeCompare(dgNetworks.Rows[i].Cells["WiFi_SSID"].Value, p.RecData))
{
found = true;
}
break;
case RecognizerMethod.Subnet:
string[] tokens = p.RecData.Split(new[] { "/" }, StringSplitOptions.None);
if ((tokens.Length == 2) && (dgNetworks.Rows[i].Cells["IP_Address"].Value != null))
{
// Check if the interface's IP address is within a given CIDR subnet
IPAddress aip = IPAddress.Parse(dgNetworks.Rows[i].Cells["IP_Address"].Value.ToString());
if (aip.AddressFamily == System.Net.Sockets.AddressFamily.InterNetwork)
{
IPAddress pip = IPAddress.Parse(tokens[0]);
IPAddress mask = pip.BitsToNetmask(Convert.ToInt32(tokens[1]));
if (pip.IsInSameSubnet(aip, mask))
{
found = true;
}
}
}
break;
case RecognizerMethod.NLA_Description:
if (NullSafeCompare(dgNetworks.Rows[i].Cells["NLA_Description"].Value, p.RecData))
{
found = true;
}
break;
case RecognizerMethod.NLA_Category:
if (NullSafeCompare(dgNetworks.Rows[i].Cells["NLA_Category"].Value, p.RecData))
{
found = true;
}
break;
}
}
// "found" is true if and only if p.Active should now become true.
if (p.Active != found)
{
anything_changed = true;
p.Active = found;
// If we got here and p.Active is now true, then this was a false-to-true transition,
// and profile actions should now be run.
if (p.Active)
{
p.RunActions();
}
}
}
// Only if anything changed, regenerate the active profiles list and re-draw the list in the GUI.
if (anything_changed || force)
{
dgProfiles.SuspendDrawing();
ActiveProfiles.Clear();
foreach (var p in Profiles)
{
if (p.Active)
{
ActiveProfiles.Add(p);
}
}
dgProfiles.ResumeDrawing();
}
}