private static void Decrypt(Options.Decrypt opts)
{
Process(opts, false);
}
public static int RunDecrypt(Options.Decrypt DecryptOptions)
{
int inError = 0;
StringBuilder errMsgText = new StringBuilder();
if (DecryptOptions.EncryptedString == null)
{
DecryptOptions.EncryptedString = string.Empty;
}
if (DecryptOptions.EncryptedTextFile == null)
{
DecryptOptions.EncryptedTextFile = string.Empty;
}
if (DecryptOptions.EncryptedString.Length > 0 && DecryptOptions.EncryptedTextFile.Length > 0)
{
// Cannot use string and file at the same time.
inError++;
errMsgText.Append($"- Using both --encryptedstring and --encryptedfile options together is not supported");
}
if (DecryptOptions.EncryptedString.Length == 0 && DecryptOptions.EncryptedTextFile.Length == 0)
{
inError++;
errMsgText.Append($"- Either --encryptedstring or --encryptedfile option must be provided.");
}
if (DecryptOptions.EncryptedString.Length == 0 && DecryptOptions.EncryptedTextFile.Length > 0)
{
if (!File.Exists(DecryptOptions.EncryptedTextFile))
{
inError++;
errMsgText.Append($"- Provided encrypted text file, {DecryptOptions.EncryptedTextFile}, doesn't exist.");
}
}
if (inError > 0)
{
Console.Write($"\nThere is a problem with provided parameters (--help for help):\n\n{errMsgText.ToString()}\n");
}
string valueToDecrypt;
if (DecryptOptions.EncryptedTextFile.Length > 0)
{
try
{
valueToDecrypt = File.ReadAllText(DecryptOptions.EncryptedTextFile);
}
catch (UnauthorizedAccessException)
{
Console.Write($"- Error reading encrypted text file, unauthorized.\n");
return(201);
}
catch (DirectoryNotFoundException)
{
Console.Write($"- Eror reading encrypted text file, Directory not found!\n");
return(202);
}
catch (Exception ex)
{
Console.Write($"- An unknown error has occurred:\n\n{ex.Message}\n\n");
return(210);
}
}
else if (DecryptOptions.EncryptedString.Length > 0)
{
valueToDecrypt = DecryptOptions.EncryptedString;
}
else
{
Console.Write($"- EncryptedString and EncryptedTextFile are empty. We shouldn't be here, must be missing a check!");
return(211);
}
string result;
try
{
result = DecryptText.Decrypt(valueToDecrypt);
} catch (Exception ex)
{
Console.Write($"- Error while decrypting string:\n\n{ex.Message}\n\n");
return(212);
}
Console.Write(result);
return(0);
}