public void StartPing()
{
string pingCountText = _pingCount == 0 ? "infinite" : _pingCount.ToString();
System.Reflection.Assembly assemblyVersion = System.Reflection.Assembly.GetExecutingAssembly();
//Preparing the output header
string displayHeader = "\n";
displayHeader += "p2t.exe v" + assemblyVersion.GetName().Version + "\n";
displayHeader += "Ping started. Used options:" + "\n";
displayHeader += "Host Name: " + P2T.Variables.HostName + "\n";
displayHeader += "IP Address: " + P2T.Variables.Address + "\n";
displayHeader += "Packet Size: " + _packetSize + " bytes" + "\n";
displayHeader += "Ping Count: " + pingCountText + "\n";
displayHeader += "Timeout: " + _pingTimeout + " ms" + "\n";
displayHeader += "Interval: " + _pingRttInterval + " ms" + "\n";
displayHeader += "Don't Fragment: " + _dontFragmentFlag + "\n";
displayHeader += "Follow the Name: " + _followTheName + "\n";
displayHeader += "Add Date to each ping output: " + _addDate + "\n";
displayHeader += "Using Telegram bot to send errors: " + _usingTelegram + "\n";
//if (!string.IsNullOrEmpty(_telegramBotToken))
//{
// displayHeader += "Telegram bot token: " + _telegramBotToken + "\n";
//}
if (!string.IsNullOrEmpty(_telegramChatId))
{
displayHeader += "Telegram bot channel id: " + _telegramChatId + "\n";
}
if (_telegramSendAll)
{
displayHeader += "Telegram, send all: " + _telegramSendAll + "\n";
}
if (_telegramSendErrors & _usingTelegram)
{
displayHeader += "Telegram, only send errors: " + _telegramSendErrors + "\n";
}
//displayHeader += ("\n");
WriteLog.Append(displayHeader);
Console.WriteLine(displayHeader);
if (_usingTelegram)
{
Telegram telegram = new Telegram(_telegramBotToken, _telegramChatId);
telegram.SendMessage(displayHeader);
}
//start action
if (_pingCount == 0)
{
while (!Cancel)
{
DoPing();
System.Threading.Thread.Sleep(_pingRttInterval);
}
}
else
{
for (int i = 0; i < _pingCount; i++)
{
if (Cancel)
{
break;
}
DoPing();
System.Threading.Thread.Sleep(_pingRttInterval);
}
}
}
private static void DoPing()
{
Telegram telegram = new Telegram(_telegramBotToken, _telegramChatId);
// Create a buffer of data to be transmitted.
byte[] sizeOption = new byte[_packetSize];
new Random().NextBytes(sizeOption);
// Wait milliseconds for a reply.
int timeoutOption = _pingTimeout;
// Set options for transmission:
// The data can go through 32 gateways or routers
// before it is destroyed, and the data packet
// can be fragmented.
var pingOptions = new PingOptions(32, _dontFragmentFlag);
var pingSender = new System.Net.NetworkInformation.Ping();
// Send the request.
try
{
var pingReply = pingSender.Send(P2T.Variables.Address, timeoutOption, sizeOption, pingOptions);
//Console.WriteLine(reply.Status.ToString());
if (pingReply != null && pingReply.Status == IPStatus.PacketTooBig)
{
P2T.Statistic.PingLost++;
string pingPacketIsToBigMessage = (_addDate ? $"[{DateTime.Now:dd-MM-yyyy HH:mm:ss.fff}]" : $"[{DateTime.Now:HH:mm:ss.fff}]") + " The packet is too big and network does not allow to pass it.";
Console.ForegroundColor = ConsoleColor.Red;
Console.WriteLine(pingPacketIsToBigMessage);
Console.ResetColor();
WriteLog.Append(pingPacketIsToBigMessage);
if (_telegramSendAll || _telegramSendErrors)
{
telegram.SendMessage(pingPacketIsToBigMessage);
}
return;
}
if (pingReply != null && pingReply.Status == IPStatus.TimedOut)
{
P2T.Statistic.PingLost++;
string pingLostText = (_addDate ? $"[{DateTime.Now:(dd-MM-yyyy HH:mm:ss.fff)}]" : $"[{DateTime.Now:HH:mm:ss.fff}]") + " Ping " + pingReply.Address + " timeout. Start trace routing.";
Console.ForegroundColor = ConsoleColor.Red;
Console.WriteLine(pingLostText);
Console.ResetColor();
WriteLog.Append(pingLostText);
P2T.Statistic.TraceRoutes++;
Traceroute startTraceroute = new Traceroute();
//Start traceroute if ping error
startTraceroute.StartTraceroute(timeoutOption);
//Console.WriteLine(reply.Status.ToString());
if (_telegramSendAll || _telegramSendErrors)
{
telegram.SendMessage(pingLostText);
}
return;
}
if (pingReply != null && pingReply.Status != IPStatus.Success)
{
P2T.Statistic.PingLost++;
string pingLostText = (_addDate ? $"[{DateTime.Now:dd-MM-yyyy HH:mm:ss.fff}]" : $"[{DateTime.Now:HH:mm:ss.fff}]") + "Ping " + pingReply.Address + " is lost. Start tracert.";
Console.ForegroundColor = ConsoleColor.Red;
Console.WriteLine(pingLostText);
Console.ResetColor();
WriteLog.Append(pingLostText);
P2T.Statistic.TraceRoutes++;
Traceroute startTraceroute = new Traceroute();
//Start traceroute if ping error
startTraceroute.StartTraceroute(timeoutOption);
//Console.WriteLine(reply.Status.ToString());
if (_telegramSendAll || _telegramSendErrors)
{
telegram.SendMessage(pingLostText);
}
return;
}
if (pingReply != null && pingReply.Status == IPStatus.Success)
{
P2T.Statistic.PingSuccess++;
P2T.Statistic.RttSumm += pingReply.RoundtripTime;
string ttl = "0";
if (pingReply.Options != null)
{
if (!string.IsNullOrEmpty(pingReply.Options.Ttl.ToString()))
{
ttl = pingReply.Options.Ttl.ToString();
}
}
if (_followTheName)
{
P2T.Statistic.AddIp = pingReply.Address.ToString();
}
string pingSuccessText = (_addDate ? $"[{DateTime.Now:dd-MM-yyyy HH:mm:ss.fff}]" : $"[{DateTime.Now:HH:mm:ss.fff}]") + " Reply from: " + pingReply.Address + " fragment=" + (!_dontFragmentFlag).ToString() + " bytes=" + _packetSize.ToString() + " time=" + pingReply.RoundtripTime.ToString() + "ms TTL=" + ttl;
Console.WriteLine(pingSuccessText);
WriteLog.Append(pingSuccessText);
if (_telegramSendAll)
{
telegram.SendMessage(pingSuccessText);
}
return;
}
P2T.Statistic.PingLost++;
string гnknownErrorText = "An unknown error occurred...";
Console.ForegroundColor = ConsoleColor.Red;
Console.WriteLine(гnknownErrorText);
Console.ResetColor();
WriteLog.Append(гnknownErrorText);
if (_telegramSendAll || _telegramSendErrors)
{
telegram.SendMessage(гnknownErrorText);
}
}
catch (PingException pingException) when(pingException.InnerException is SocketException socketException && socketException.SocketErrorCode == SocketError.HostNotFound)
{
//Console.WriteLine(socketException.ToString());
string textHostNotFound = (_addDate ? $"[{DateTime.Now:dd-MM-yyyy HH:mm:ss.fff}]" : $"[{DateTime.Now:HH:mm:ss.fff}]") + " Can't resolve the hostname '" + P2T.Variables.Address + "' to an IP address.";
Console.ForegroundColor = ConsoleColor.Red;
Console.WriteLine(textHostNotFound);
Console.ResetColor();
WriteLog.Append(textHostNotFound);
if (_telegramSendAll || _telegramSendErrors)
{
telegram.SendMessage(textHostNotFound);
}
System.Threading.Thread.Sleep(_pingTimeout);
}
catch (PingException pingException)
{
//Console.WriteLine(pingException.ToString());
string pingModuleException = (_addDate ? $"[{DateTime.Now:dd-MM-yyyy HH:mm:ss.fff}]" : $"[{DateTime.Now:HH:mm:ss.fff}]") + " Ping module error exception: " + pingException;
Console.ForegroundColor = ConsoleColor.Red;
Console.WriteLine(pingModuleException);
Console.ResetColor();
WriteLog.Append(pingModuleException);
if (_telegramSendAll || _telegramSendErrors)
{
telegram.SendMessage(pingModuleException);
}
System.Threading.Thread.Sleep(_pingTimeout);
}
}
