public static bool ShouldUserLog(string username)
{
LoggerCWContext context = new LoggerCWContext();
foreach (Log line in context.Logs.ToList())
{
if (line.ToString().StartsWith("Error login attempt"))
{
Regex usernameRegex = new Regex("Username: '******', Date: '(.*)', Attempt: '(.*)'");
Match match = usernameRegex.Match(line.ToString());
if (match.Success)
{
string usernameMatch = match.Groups[1].Value;
if (username == usernameMatch)
{
int attemptMatch = int.Parse(match.Groups[3].Value);
if (attemptMatch == 3)
{
string dateMatch = match.Groups[2].Value;
DateTime lastTime = DateTime.ParseExact(dateMatch, DATETIME_FORMAT, null);
DateTime currentTime = DateTime.Now;
TimeSpan diff = currentTime - lastTime;
double minutesDiff = diff.TotalMinutes;
if (minutesDiff > 3)
{
LogActivity(string.Format("Error login attempt; Username: '******', Date: '{1}', Attempt: '0'",
username, DateTime.Now.ToString(DATETIME_FORMAT), ++attemptMatch));
return(true);
// return true, tumbstone log message
}
//reject enterance
string msg = string.Format("User '{0}' cannot log in since three minutes have not passed since last failed login attempt: '{1}'",
username, lastTime.ToString(DATETIME_FORMAT));
Console.WriteLine(msg);
LogActivity(msg);
return(false);
}
else
{
string msg = string.Format("Error login attempt; Username: '******', Date: '{1}', Attempt: '{2}'",
username, DateTime.Now.ToString(DATETIME_FORMAT), ++attemptMatch);
Console.WriteLine(msg);
LogActivity(msg);
//add log to increment attempt counter, return true
}
return(true);
}
}
else
{
Console.WriteLine("Unsuccessful match failure.");
}
}
}
return(true);
}
public static void LogActivity(string activity)
{
string activityLine = activity;
if (activity.StartsWith("Error login attempt"))
{
activityLine += Environment.NewLine;
}
LoggerCWContext context = new LoggerCWContext();
context.Logs.Add(new Log(context.GetNextLogId(), activityLine));
context.SaveChanges();
currentSessionActivities.Add(activityLine);
}
private static string GetLastLoginAttemptLog(string username)
{
LoggerCWContext context = new LoggerCWContext();
foreach (Log line in context.Logs.ToList())
{
Regex usernameRegex = new Regex("Username: '******', Date: '(.*)', Attempt: '(.*)'");
Match match = usernameRegex.Match(line.ToString());
if (match.Success)
{
string usernameMatch = match.Groups[1].Value;
if (usernameMatch == username)
{
return(line.ToString());
}
}
}
return(null);
}
private static int GetLoginAttempts(string username)
{
LoggerCWContext context = new LoggerCWContext();
foreach (Log line in context.Logs.ToList())
{
Regex usernameRegex = new Regex("Username: '******', Date: '(.*)', Attempt: '(.*)'");
Match match = usernameRegex.Match(line.ToString());
if (match.Success)
{
string usernameMatch = match.Groups[1].Value;
if (usernameMatch == username)
{
int attemptMatch = int.Parse(match.Groups[3].Value);
return(attemptMatch);
}
}
}
return(0);
}
public static string ViewLogs()
{
LoggerCWContext context = new LoggerCWContext();
return(string.Join(Environment.NewLine, context.Logs.ToList()));
}
