//private bool isDisposed;
//protected MyZipArchive archive;
//private MyArchiveFileHeader header;
//private bool headerLoaded;
//private int rawHeaderLength;
//protected int headerOffset;
//public bool CanRead { get; private set; }
public Reader(MyZipArchive archive) : base(archive)
{
//if (archive == null)
// throw new ArgumentNullException();
//this.archive = archive;
}
public HeaderReader(MyZipArchive archive)
{
if (archive == null)
{
throw new ArgumentNullException();
}
this.archive = archive;
}
public EncryptionReader(MyZipArchive archive, string key) : base(archive)
{
var rawKey = UTF8Encoding.UTF8.GetBytes(key);
var key2 = new Rfc2898DeriveBytes(key, rawKey, 20);
TripleDESCryptoServiceProvider tdes = new TripleDESCryptoServiceProvider();
tdes.Key = key2.GetBytes(tdes.KeySize / 8);
tdes.Mode = CipherMode.ECB;
tdes.Padding = PaddingMode.PKCS7;
crypto = tdes.CreateDecryptor();
}
public Writer(MyZipArchive archive, bool overwrite)
{
if (archive == null)
{
throw new ArgumentNullException();
}
this.archive = archive;
state = writerState.Waiting;
this.overwrite = overwrite;
//if (!overwrite)
// tryLoadFile();
//else
// blocks = new DataBlockCollection();
}
//public static bool TryGetReader(MyZipArchive archive, out Reader reader)
//{
//}
public static Writer GetWriter(MyZipArchive archive, bool overwrite, string encryptionKey = "")
{
int basicType;
using (var reader = new HeaderReader(archive))
{
basicType = reader.GetArchiveType().BasicType;
}
switch (basicType)
{
case 0:
return(new Writer(archive, overwrite));
case 1:
return(new CompressionWriter(archive, overwrite));
case 2:
return(new EncryptionWriter(archive, overwrite, encryptionKey));
default:
return(null);
}
}
public CompressionReader(MyZipArchive archive) : base(archive)
{
}
public CompressionWriter(MyZipArchive archive, bool overwrite) : base(archive, overwrite)
{
}
