private Stream DecryptTableOfContent(Stream stream, long len)
{
MemoryStream outputStream = new();
RijndaelEncryptor.DecryptFile(stream, outputStream, cryptoKey, CipherMode.CFB, len);
return(outputStream);
}
static void Main(string[] args)
{
var arguments = new Arguments();
var options = GetOptions(arguments);
if (args.Length == 0)
{
options.WriteOptionDescriptions(Console.Out);
return;
}
try
{
options.Parse(args);
if (arguments.ShowHelp)
{
options.WriteOptionDescriptions(Console.Out);
return;
}
var inputFiles = arguments.InputFiles.ToList();
if (!arguments.InputFiles.Any() && args.Length > 0)
{
inputFiles.Add(args.First());
}
foreach (var file in inputFiles)
{
FileAttributes attr = File.GetAttributes(Path.GetFullPath(file));
if ((attr & FileAttributes.Directory) == FileAttributes.Directory && Directory.Exists(file))
{
foreach (var file1 in Directory.EnumerateFiles(file, "*.*", SearchOption.AllDirectories))
{
if (File.Exists(file1))
{
arguments.InputFiles.Add(file1);
}
}
}
else
{
arguments.InputFiles.Add(file);
}
}
var missingFiles = arguments.InputFiles.Where(i => !File.Exists(i)).ToList();
if (missingFiles.Any())
{
var message = "The specified input file(s) do not exist: \n"
+ string.Join("\n", missingFiles.Select(f => "\t" + f));
ShowHelpfulError(message);
}
}
catch (OptionException ex)
{
ShowHelpfulError(ex.Message);
return;
}
foreach (var inputPath in arguments.InputFiles)
{
var outputDirectory = Path.GetDirectoryName(inputPath);
using (var inputStream = File.OpenRead(inputPath))
{
if (!arguments.Encrypt)
{
var outputFilename = Path.GetFileName(inputPath) + ".decrypted";
var outputPath = Path.Combine(outputDirectory, outputFilename);
Directory.CreateDirectory(outputDirectory);
using (var outputStream = File.Create(outputPath))
RijndaelEncryptor.DecryptFile(inputStream, outputStream, RijndaelEncryptor.PCFilesKey);
}
if (arguments.Encrypt)
{
var outputFilename = Path.GetFileName(inputPath) + ".encrypted";
var outputPath = Path.Combine(outputDirectory, outputFilename);
Directory.CreateDirectory(outputDirectory);
using (var outputStream = File.Create(outputPath))
RijndaelEncryptor.EncryptFile(inputStream, outputStream, RijndaelEncryptor.PCFilesKey);
}
}
}
}