private void Pack()
{
Packer packer = null;
if (compressCheckBox.Checked && encryptCheckBox.Checked)
{
packer = new FullPacker();
}
else if (compressCheckBox.Checked)
{
packer = new CompressionPacker();
}
else if (encryptCheckBox.Checked)
{
packer = new EncryptionPacker();
}
packer.Compressor = GetCompressor();
ICipher cipher = GetCipher();
packer.Encryptor = GetEncryptor(cipher);
packer.StatusChanged += OnStatusChanged;
packer.WorkFinished += OnWorkFinished;
SwitchControls(false);
packer.PackAsync(_filePath);
}
public Packer GetPacker(string path, byte[] key = null)
{
Packer packer = null;
using (var input = new FileStream(path, FileMode.Open, FileAccess.Read))
{
byte mode = Convert.ToByte(input.ReadByte());
if (mode == Mode.Full)
{
packer = new FullPacker();
packer.Compressor = GetCompressor(input.ReadByte());
ICipher cipher = GetCipher(input.ReadByte(), key);
packer.Encryptor = GetEncryptor(input.ReadByte(), cipher, input);
}
else if (mode == Mode.Compress)
{
packer = new CompressionPacker {
Compressor = GetCompressor(input.ReadByte())
}
}
;
else if (mode == Mode.Encrypt)
{
packer = new EncryptionPacker();
ICipher cipher = GetCipher(input.ReadByte(), key);
packer.Encryptor = GetEncryptor(input.ReadByte(), cipher, input);
packer.Encryptor.Cipher = cipher;
}
else
{
throw new InvalidOperationException("Invalid file header");
}
}
return(packer);
}