public UnzipReadStream (UnzipArchive archive, CompressionOption compressionLevel) { Archive = archive; Archive.FileActive = true; CompressionLevel = compressionLevel; length = NativeVersion.Use32Bit ? NativeUnzip.CurrentFileLength32 (Archive.Handle) : NativeUnzip.CurrentFileLength64 (Archive.Handle); }
public UnzipReadStream(UnzipArchive archive, CompressionOption compressionLevel) { Archive = archive; Archive.FileActive = true; CompressionLevel = compressionLevel; length = NativeUnzip.CurrentFileLength(Archive.Handle); }
protected override Stream GetStreamCore (FileMode mode, FileAccess access) { ZipPartStream zps; MemoryStream stream; if (Package.PartStreams.TryGetValue (Uri, out stream)) { zps = new ZipPartStream (Package, stream, access); if (mode == FileMode.Create) stream.SetLength (0); return new ZipPartStream (Package, stream, access); } stream = new MemoryStream (); try { using (UnzipArchive archive = new UnzipArchive (Package.PackageStream)) { foreach (string file in archive.GetFiles ()) { if (file != Uri.ToString ().Substring (1)) continue; using (Stream archiveStream = archive.GetStream (file)) { int read = 0; byte[] buffer = new byte [Math.Min (archiveStream.Length, 2 * 1024)]; while ((read = archiveStream.Read (buffer, 0, buffer.Length)) != 0) stream.Write (buffer, 0, read); } } } } catch { // The zipfile is invalid, so just create the file // as if it didn't exist stream.SetLength (0); } Package.PartStreams.Add (Uri, stream); if (mode == FileMode.Create) stream.SetLength (0); return new ZipPartStream (Package, stream, access); }