public static void Main(string[] args)
{
Console.CancelKeyPress += (sender, eArgs) =>
{
PlaySound(Sentinel.Sounds.Cancelled);
Console.SetCursorPosition(0, LineConstants.InfoQuit);
QuitEvent.Set();
eArgs.Cancel = true;
};
PreLoadSounds();
WriterHelper.Writeheader();
requestType = GetRequestType();
var urlToCheck = GetUrlToCheck();
WriterHelper.WriteInfo(LineConstants.InfoGlobalStatus, text: $@"Global Status: { globalStatus }");
WriterHelper.WriteInfo(LineConstants.InfoGlobalAttempts, text: $@"Current Attempts left: { NumberOfAttempts }");
WriterHelper.WriteInfo(LineConstants.InfoCurrentException, text: @"Current Exception: -");
WriterHelper.WriteInfo(LineConstants.InfoResponseStatus, text: @"Response: -");
Task.Run(() => SendRequest(urlToCheck, requestType, NumberOfAttempts));
PlaySound(Sentinel.Sounds.Startup);
QuitEvent.WaitOne();
}
private static async Task SendPing(string urlToCheck)
{
using (var ping = new Ping())
{
var result = ping.Send(urlToCheck);
WriterHelper.WriteInfo(LineConstants.InfoResponseStatus, text: $@"Response: Status: {result.Status}, RoundtripTime: {result.RoundtripTime}");
if (result.Status != IPStatus.Success || result.RoundtripTime > TimeOut)
{
throw new Exception("Ping fault");
}
}
}
private static async Task SendWebRequest(string urlToCheck)
{
var httpClient = new HttpClient
{
Timeout = TimeSpan.FromMilliseconds(TimeOut),
BaseAddress = new Uri(urlToCheck)
};
var responseMessage = await httpClient.GetAsync(string.Empty);
if (responseMessage.StatusCode != HttpStatusCode.OK)
{
WriterHelper.WriteInfo(LineConstants.InfoResponseStatus, text: $@"Response: Status: {responseMessage.StatusCode}");
throw new Exception(responseMessage.Content.ToString());
}
}
private static RequestType GetRequestType()
{
Console.SetCursorPosition(0, LineConstants.RequestType);
Console.WriteLine(@"Trasmission type :");
Console.WriteLine(@"1. Ping");
Console.WriteLine(@"2. Web Request");
Console.WriteLine(@"Choose your destiny: ");
var requestTypeTyped = Console.ReadLine();
if (!Enum.TryParse(requestTypeTyped, out RequestType requestType) || !Enum.IsDefined(typeof(RequestType), requestType))
{
WriterHelper.WriteInputError(requestTypeTyped, LineConstants.RequestTypeError, MessageError);
GetRequestType();
}
return(requestType);
}
private static string GetUrlToCheck()
{
Console.SetCursorPosition(0, LineConstants.UrlCheck);
Console.WriteLine(@"Please type a url/IP to check");
var urlToCheck = Console.ReadLine();
if (string.IsNullOrWhiteSpace(urlToCheck))
{
WriterHelper.WriteInputError(urlToCheck, LineConstants.UrlCheckError, MessageError);
GetUrlToCheck();
}
if (requestType == RequestType.WebRequest && !urlToCheck.StartsWith("http://") && !urlToCheck.StartsWith("https://"))
{
WriterHelper.WriteInputError(urlToCheck, LineConstants.UrlCheckError, @"Please prepend http:// or https://");
GetUrlToCheck();
}
return(urlToCheck);
}
private static async Task SendRequest(string urlToCheck, RequestType requestType, int localAttempts)
{
try
{
if (requestType == RequestType.Ping)
{
await SendPing(urlToCheck);
}
else
{
await SendWebRequest(urlToCheck);
}
localAttempts = NumberOfAttempts;
WriterHelper.WriteInfo(LineConstants.InfoGlobalAttempts, ColumnConstants.InfoGlobalAttempts, localAttempts.ToString());
WriterHelper.WriteInfo(LineConstants.InfoCurrentException, ColumnConstants.InfoCurrentException, "-");
if (globalStatus == ExecutionStatus.AlarmFired)
{
globalStatus = ExecutionStatus.SendRequest;
WriterHelper.WriteInfo(LineConstants.InfoGlobalStatus, ColumnConstants.InfoGlobalStatus, globalStatus.ToString());
PlayVictory();
}
if (globalStatus == ExecutionStatus.Warning)
{
globalStatus = ExecutionStatus.SendRequest;
WriterHelper.WriteInfo(LineConstants.InfoGlobalStatus, ColumnConstants.InfoGlobalStatus, globalStatus.ToString());
PlaySound(Sentinel.Sounds.Startup);
}
}
catch (Exception e)
{
WriterHelper.WriteInfo(LineConstants.InfoCurrentException, ColumnConstants.InfoCurrentException, e.Message);
if (globalStatus != ExecutionStatus.AlarmFired)
{
globalStatus = ExecutionStatus.Warning;
WriterHelper.WriteInfo(LineConstants.InfoGlobalStatus, ColumnConstants.InfoGlobalStatus, globalStatus.ToString());
localAttempts--;
WriterHelper.WriteInfo(LineConstants.InfoGlobalAttempts, ColumnConstants.InfoGlobalAttempts, localAttempts.ToString());
}
if (localAttempts <= 0)
{
globalStatus = globalStatus != ExecutionStatus.AlarmFired ? ExecutionStatus.AttempsExcedeed : globalStatus;
WriterHelper.WriteInfo(LineConstants.InfoGlobalStatus, ColumnConstants.InfoGlobalStatus, globalStatus.ToString());
}
}
finally
{
switch (globalStatus)
{
case ExecutionStatus.SendRequest:
case ExecutionStatus.AlarmFired:
Thread.Sleep(5000);
await SendRequest(urlToCheck, requestType, localAttempts);
break;
case ExecutionStatus.Warning:
PlayAlarm(localAttempts);
Thread.Sleep(5000);
await SendRequest(urlToCheck, requestType, localAttempts);
break;
case ExecutionStatus.AttempsExcedeed:
globalStatus = ExecutionStatus.AlarmFired;
WriterHelper.WriteInfo(LineConstants.InfoGlobalStatus, ColumnConstants.InfoGlobalStatus, globalStatus.ToString());
PlayAlarm(localAttempts);
Thread.Sleep(5000);
await SendRequest(urlToCheck, requestType, localAttempts);
break;
}
}
}
