public static void StartScaning(string hostsFile, string localhostsFile)
{
while (running)
{
//Start pinging
string[] hostList = File.ReadAllLines(hostsFile);
if (hostList.Length > 0)
{
foreach (string host in hostList)
{
Output.WriteLine("Pinging " + host, Color.LightBlue);
String message = Monitor.PingHost(host);
if (message.Contains("Error"))
{
if (Monitor.errorCount >= 3)
{
//Host is offline
Email.Send("APN: Host: " + host + " is offline", message, SaveState.values);
}
}
else if (Monitor.avgReplyTime > SaveState.values.replyTimeThreshold)
{
//Host response is slow
Email.Send("APN: Host: " + host + " ping theshold reached", host + " responded with an average response time of: " + Monitor.avgReplyTime + "ms", SaveState.values);
}
}
}
else
{
Output.LogAppend("hosts.txt file is empty! Please add hosts to ping. \n", Color.White);
}
string[] localhostList = File.ReadAllLines(localhostsFile);
if (hostList.Length > 0)
{
foreach (string localhost in localhostList)
{
string message = Monitor.CPU(localhost, SaveState.values); // Measure resource usage
if (message.Contains("Error")) // Send email for errors
{
Email.Send("APN: Local Host: " + localhost + " is offline", message, SaveState.values);
}
else if (Monitor.cpuUsage > SaveState.values.cpuUsageThreshold) // Send email for high CPU usage
{
Email.Send("APN: Local Host: " + localhost + " CPU usage is higher than theshold", message, SaveState.values);
}
}
}
// Wait to ping again
Output.WriteLine("Waiting " + SaveState.values.pingInterval / 1000 + " seconds... \n", Color.LightBlue);
Thread.Sleep(SaveState.values.pingInterval);
}
} // Ping and get CPU loop reads hosts.txt and localhosts.txt
//AutoSave values
public static async void AutoSaveValues()
{
while (true)
{
while (AutoSave)
{
SaveConfig();
Output.LogAppend("Config has been saved. \n", Color.White);
await Task.Delay(AutoSaveInterval);
}
await Task.Delay(AutoSaveInterval);
}
}
public static String CPU(string localhost, SaveState.Values values) // Method to measure resource usage
{
string Message = "";
string localhosts = File.ReadAllText("localhosts.txt");
if (localhosts.Length > 0)
{
if (localhosts.Contains(localhost))
{
try
{
Output.WriteLine("Measuring local host CPU usage for: " + localhost, Color.LightBlue);
// Initialise cpu counter
cpucounter = new PerformanceCounter("Processor", "% Processor Time", "_Total", true);
cpucounter.MachineName = localhost;
cpucounter.NextValue();
Thread.Sleep(1000); // One second of CPU time
cpuUsage = Convert.ToDouble(Math.Round(cpucounter.NextValue(), 2));
Output.WriteLine("CPU Usage: " + cpuUsage + "%", Color.LightBlue);
if (cpuUsage > values.cpuUsageThreshold)
{
Output.WriteLine("CPU usage is higher than theshold of " + values.cpuUsageThreshold + "%", Color.OrangeRed);
}
}
catch (Exception ex)
{
Message = "Error: " + ex.Message;
Output.WriteLine(Message, Color.OrangeRed);
}
}
}
else
{
Output.LogAppend("localhosts.txt file is empty! Please add local hosts to check their resources. \n", Color.White);
}
return(Message);
}