private static void Main(string[] args)
{
List <string> dictionary = null;
StopwatchController stopwatch = new StopwatchController(new System.Diagnostics.Stopwatch());
DitionaryCreator ditionaryCreator = new DitionaryCreator();
if (args.Any(a => a == "help"))
{
PrintManual();
return;
}
if (args.Any(a => a == "-bd"))
{
PrintPDfForce();
dictionary = GenerateBirthdayDictionary(stopwatch, ditionaryCreator);
}
if (args.Any(a => a == "-kw"))
{
PrintPDfForce();
dictionary = GenerateKeywordsDictionary(stopwatch, ditionaryCreator);
}
if (args.Any(a => a == "-df"))
{
PrintPDfForce();
dictionary = LoadDictionary();
}
FindPassword(args, dictionary, stopwatch);
}
private static List <string> GenerateBirthdayDictionary(StopwatchController stopwatch, DitionaryCreator ditionaryCreator)
{
List <string> dictionary;
DateTime startDate = new DateTime(1960, 1, 1);
DateTime finishDate = DateTime.Now.AddYears(-10);
Console.WriteLine($"Generate dictionary between {startDate.ToString("dd/MM/yyyy")} and {finishDate.ToString("dd/MM/yyyy")}");
stopwatch.Start();
dictionary = ditionaryCreator.GenerateForBirthday(startDate, finishDate);
stopwatch.Stop();
Console.WriteLine($"Working time: {stopwatch.Time}\tDictionary length: {dictionary.Count}");
return(dictionary);
}
private static void FindPassword(string[] args, List <string> dictionary, StopwatchController stopwatch)
{
if (dictionary is null || dictionary.Count < 1)
{
return;
}
Console.WriteLine("Write path of PDF File:");
string pdfPath = Console.ReadLine();
if (!File.Exists(pdfPath))
{
Console.WriteLine("404! 404! abort!");
return;
}
if (!IsPasswordProtected(pdfPath))
{
Console.WriteLine("Doesn't appear to be password protected...");
return;
}
stopwatch.Start();
if (args.Any(a => a == "-p"))
{
Parallel.ForEach(dictionary, (str, pls) =>
{
if (IsPasswordValid(pdfPath, GetBytes(str)))
{
Console.WriteLine("Correct password is: {0}", str);
stopwatch.Stop();
Console.WriteLine($"Working time: {stopwatch.Time}");
pls.Break();
}
});
return;
}
else
{
foreach (var password in dictionary)
{
if (IsPasswordValid(pdfPath, GetBytes(password)))
{
Console.WriteLine("Correct password is: {0}", password);
stopwatch.Stop();
Console.WriteLine($"Working time: {stopwatch.Time}");
return;
}
}
}
stopwatch.Stop();
Console.WriteLine($"Password not find. Working time: {stopwatch.Time}");
}
private static List <string> GenerateKeywordsDictionary(StopwatchController stopwatch, DitionaryCreator ditionaryCreator)
{
List <string> dictionary = new List <string>();
string str = "";
List <string> keywords = new List <string>();
while (true)
{
Console.WriteLine("Write keyword or stop for exit:");
str = Console.ReadLine();
if (str == "stop")
{
break;
}
if (!string.IsNullOrEmpty(str))
{
keywords.Add(str);
}
}
stopwatch.Start();
try
{
keywords = ditionaryCreator.FirstCharUp(keywords);
dictionary = ditionaryCreator.GenerateForKeywords(keywords, 2);
}
catch (Exception ex)
{
Console.WriteLine(ex.Message);
}
finally
{
stopwatch.Stop();
Console.WriteLine($"Working time: {stopwatch.Time}\tKeywords: {keywords?.Count}\tDictionary length: {dictionary?.Count}");
}
return(dictionary);
}
