public ZipFile(Stream strm, bool read)
{
_strm = strm;
if (!read)
_bw = new BinaryWriter(new GZipStream(_strm, CompressionMode.Compress, true));
else
{
_br = new BinaryReader(new GZipStream(_strm, CompressionMode.Decompress, true));
_base = new sZippedFolder("");
while (true)
{
byte[] bhead = new byte[512];
int bread = _br.Read(bhead, 0, 512);
if (bread == 0)
break;
TarHeader head = new TarHeader(bhead);
switch (head.TypeFlag)
{
case TarHeader.EntryTypes.DIRECTORY:
_base.AddFolder(head.Name, head.Prefix);
break;
case TarHeader.EntryTypes.NORMAL:
byte[] data = _br.ReadBytes((int)head.Size);
int size = 0;
while ((data.Length + size) % 512 != 0)
{
_br.ReadByte();
size++;
}
_base.AddFile(head, data);
break;
}
}
}
}
private void RestoreFiles(sZippedFolder fold, string basePath)
{
foreach (sZippedFolder fld in fold.Folders)
{
DirectoryInfo di = new DirectoryInfo(basePath + Path.DirectorySeparatorChar + fld.Name);
if (!di.Exists)
di.Create();
RestoreFiles(fld, di.FullName);
}
foreach (ZipFile.sZippedFile file in fold.Files)
{
FileStream fs = new FileStream(basePath + Path.DirectorySeparatorChar + file.Name, FileMode.Create, FileAccess.Write, FileShare.None);
BinaryWriter bw = new BinaryWriter(fs);
bw.Write(file.Data);
bw.Flush();
bw.Close();
}
}
internal void AddFolder(string name, string prefix)
{
if ((prefix == _name) || (prefix == ""))
_folders.Add(new sZippedFolder(name));
else
{
string[] split = prefix.Split('/');
prefix = prefix.Substring(prefix.IndexOf(split[0]));
prefix = prefix.TrimStart('/');
bool add = true;
for (int x = 0; x < _folders.Count; x++)
{
if (_folders[x].Name == split[0])
{
add = false;
_folders[x].AddFolder(name, prefix);
x = _folders.Count;
}
}
if (add)
{
sZippedFolder fold = new sZippedFolder(split[0]);
fold.AddFolder(name, prefix);
_folders.Add(fold);
}
}
}
