public void Serialize(MonitorInformation mi, string fileName)
{
// Create a hashtable of values that will eventually be serialized.
// To serialize the hashtable and its key/value pairs,
// you must first open a stream for writing.
// In this case, use a file stream.
FileStream fs = new FileStream(fileName, FileMode.Create);
// Construct a BinaryFormatter and use it to serialize the data to the stream.
BinaryFormatter formatter = new BinaryFormatter();
try
{
formatter.Serialize(fs, mi);
}
catch (SerializationException e)
{
Console.WriteLine("Failed to serialize. Reason: " + e.Message);
throw;
}
catch (IOException e)
{
Console.WriteLine("Failed to access file: " + e.Message);
throw;
}
finally
{
fs.Close();
}
}
public bool VerifyVPNIP(MonitorInformation mi)
{
if (IsValidIP(mi.VPNIP))
{
if (IsSimilarTo(mi.VPNIP, mi.HomeIP, 9))
{
mi.VPNIP = "";
return(false);
}
else if (IsSimilarTo(mi.CurrentIP, mi.VPNIP, 3))
{
return(true);
}
else
{
return(false);
}
}
else if (!mi.CurrentIP.Equals(mi.HomeIP) && IsValidIP(mi.CurrentIP))
{
mi.VPNIP = mi.CurrentIP;
SessionInformationStorage sis = new SessionInformationStorage();
try
{
sis.Serialize(mi, FILENAME);
}
catch (IOException e)
{
Console.WriteLine("Failed to access file: " + e.Message);
}
return(true);
}
else
{
if (!IsSimilarTo(mi.CurrentIP, mi.HomeIP, 9))
{
mi.VPNIP = mi.CurrentIP;
SessionInformationStorage sis = new SessionInformationStorage();
try
{
sis.Serialize(mi, FILENAME);
}
catch (IOException e)
{
Console.WriteLine("Failed to access file: " + e.Message);
}
return(true);
}
else
{
return(false);
}
}
}
public VPN_Stability_Monitor(IPMonitor ipMon)
{
SessionInformationStorage sis = new SessionInformationStorage();
try
{
mi = sis.Deserialize(FILENAME, this);
ipMonitor = ipMon;
}
catch
{
mi = new MonitorInformation();
}
}
void IncrementThresholdIfUnstable(MonitorInformation mi)
{
if (mi.CurrentIP != null)
{
if (IsValidIP(mi.CurrentIP) && IsSimilarTo(mi.CurrentIP, mi.VPNIP, 3))
{
SetShutdownThresholdCounter(0);
}
else if (mi.CurrentIP.Equals(mi.HomeIP) || !IsSimilarTo(mi.CurrentIP, mi.VPNIP, 3))
{
SetShutdownThresholdCounter(totalWarnings + 1);
}
Stability = thresholdReached ? $"Connection unstable after {totalWarnings} tries." : $"VPN active {mi.VPNIP}, connection stable. Home IP: {mi.HomeIP}";
}
}
