public static string Decrypt(string settingsFileName, string digraphFileName, string message)
{
MonthlySettings _monthlySettings = null;
FileInfo fi = new FileInfo(settingsFileName);
if (fi.Exists)
{
if (fi.Extension.ToLower() == ".xml")
{
_monthlySettings = MonthlySettings.Open(settingsFileName);
}
else
{
string fileContent = fi.OpenText().ReadToEnd();
_monthlySettings = MonthlySettings.Parse(fileContent);
}
}
string[] lines = BreakMessageIntoGroups(message);
string[] headers = GetHeaders(lines);
List <string[]> parts = GetParts(headers, lines);
string[,] digraphs = Utility.ParseDigraphTable(digraphFileName);
List <string> decrypts = new List <string>();
for (int i = 0; i < headers.Length; i++)
{
decrypts.Add(DecryptPart(headers[i], _monthlySettings, parts[i], digraphs));
}
return(string.Concat(decrypts));
}
public void CheckMonthlySettingParsingAndEquality()
{
MonthlySettings monSet = MonthlySettings.Random(2000, 1, MachineType.M3);
MonthlySettings check = MonthlySettings.Parse(monSet.ToString());
Assert.IsTrue(monSet == check);
monSet = MonthlySettings.Random(2000, 1, MachineType.M3K);
check = MonthlySettings.Parse(monSet.ToString());
Assert.IsTrue(monSet == check);
monSet = MonthlySettings.Random(2000, 1, MachineType.M4K);
check = MonthlySettings.Parse(monSet.ToString());
Assert.IsTrue(monSet == check);
}
public NavyMessage(string settingsFileName, string digraphFileName, string input, int day, string callSign)
{
MonthlySettingsFileName = settingsFileName;
PlainText = input;
Day = day;
List <NavyMessagePart> _innerParts = new List <NavyMessagePart>();
FileInfo fi = new FileInfo(MonthlySettingsFileName);
if (fi.Exists)
{
if (fi.Extension.ToLower() == ".xml")
{
_monthlySettings = MonthlySettings.Open(MonthlySettingsFileName);
}
else
{
using (StreamReader rdr = fi.OpenText())
{
string fileContent = rdr.ReadToEnd();
_monthlySettings = MonthlySettings.Parse(fileContent);
}
}
}
string cleanInput = Utility.CleanString(input);
string paddedInput = Utility.GetPaddedString(cleanInput, 4);
string[] parts = Utility.GetMessageParts(paddedInput, 4, 96);
string[,] digs = Utility.ParseDigraphTable(digraphFileName);
Settings s = _monthlySettings.DailySettings.FirstOrDefault(ss => ss.Day == Day);
if (s == null)
{
s = _monthlySettings.DailySettings.Last();
}
for (int i = 0; i < parts.Length; i++)
{
_innerParts.Add(new NavyMessagePart(s, callSign, parts[i], i, parts.Length, digs));
}
Parts = _innerParts;
}
public ArmyMessage(string settingsFileName, string input, int day)
{
MonthlySettingsFileName = settingsFileName;
PlainText = input;
Day = day;
List <ArmyMessagePart> _innerParts = new List <ArmyMessagePart>();
FileInfo fi = new FileInfo(MonthlySettingsFileName);
if (fi.Exists)
{
if (fi.Extension.ToLower() == ".xml")
{
_monthlySettings = MonthlySettings.Open(MonthlySettingsFileName);
}
else
{
string fileContent = fi.OpenText().ReadToEnd();
_monthlySettings = MonthlySettings.Parse(fileContent);
}
}
string cleanInput = Utility.CleanString(input);
string paddedInput = Utility.GetPaddedString(cleanInput, 5);
string[] parts = Utility.GetMessageParts(paddedInput, 5, 49);
Settings s = _monthlySettings.DailySettings.FirstOrDefault(ss => ss.Day == Day);
if (s == null)
{
s = _monthlySettings.DailySettings.Last();
}
for (int i = 0; i < parts.Length; i++)
{
_innerParts.Add(new ArmyMessagePart(s, parts[i], i, parts.Length));
}
Parts = _innerParts;
}
