public Task CopyToStreamAsync(Stream stream) { return(dataStream.CopyToAsync(stream)); }
public static async Task ExtractTarAsync(FileSystemStorageFolder NewFolder, FileSystemStorageFile File, ProgressChangedEventHandler ProgressHandler = null) { using (FileStream BaseStream = await File.GetFileStreamFromFileAsync(AccessMode.Exclusive).ConfigureAwait(false)) using (TarInputStream InputTarStream = new TarInputStream(BaseStream, Encoding.UTF8)) { BaseStream.Seek(0, SeekOrigin.Begin); InputTarStream.IsStreamOwner = false; long CurrentPosition = 0; while (InputTarStream.GetNextEntry() is TarEntry Entry) { if (Entry.Name.Contains("/")) { string[] SplitFolderPath = Entry.Name.Split('/', StringSplitOptions.RemoveEmptyEntries); string TempFolderPath = NewFolder.Path; for (int i = 0; i < SplitFolderPath.Length - 1; i++) { if (await FileSystemStorageItemBase.CreateAsync(Path.Combine(TempFolderPath, SplitFolderPath[i]), StorageItemTypes.Folder, CreateOption.OpenIfExist).ConfigureAwait(false) is FileSystemStorageFolder NextFolder) { TempFolderPath = NextFolder.Path; } else { throw new UnauthorizedAccessException("Could not create directory"); } } if (Entry.Name.Last() == '/') { if (await FileSystemStorageItemBase.CreateAsync(Path.Combine(TempFolderPath, SplitFolderPath.Last()), StorageItemTypes.Folder, CreateOption.OpenIfExist).ConfigureAwait(false) == null) { throw new UnauthorizedAccessException("Could not create directory"); } } else { if (await FileSystemStorageItemBase.CreateAsync(Path.Combine(TempFolderPath, SplitFolderPath.Last()), StorageItemTypes.File, CreateOption.GenerateUniqueName).ConfigureAwait(false) is FileSystemStorageFile NewFile) { using (FileStream NewFileStream = await NewFile.GetFileStreamFromFileAsync(AccessMode.Write).ConfigureAwait(false)) { if (Entry.Size > 0) { await InputTarStream.CopyToAsync(NewFileStream, (s, e) => { ProgressHandler?.Invoke(null, new ProgressChangedEventArgs(Convert.ToInt32((CurrentPosition + Convert.ToInt64(e.ProgressPercentage / 100d * Entry.Size)) * 100d / BaseStream.Length), null)); }).ConfigureAwait(false); } else { await InputTarStream.CopyToAsync(NewFileStream).ConfigureAwait(false); } } } else { throw new UnauthorizedAccessException(); } } } else { if (await FileSystemStorageItemBase.CreateAsync(Path.Combine(NewFolder.Path, Entry.Name), StorageItemTypes.File, CreateOption.GenerateUniqueName).ConfigureAwait(false) is FileSystemStorageFile NewFile) { using (FileStream NewFileStream = await NewFile.GetFileStreamFromFileAsync(AccessMode.Write).ConfigureAwait(false)) { if (Entry.Size > 0) { await InputTarStream.CopyToAsync(NewFileStream, (s, e) => { ProgressHandler?.Invoke(null, new ProgressChangedEventArgs(Convert.ToInt32((CurrentPosition + Convert.ToInt64(e.ProgressPercentage / 100d * Entry.Size)) * 100d / BaseStream.Length), null)); }).ConfigureAwait(false); } else { await InputTarStream.CopyToAsync(NewFileStream).ConfigureAwait(false); } } } else { throw new UnauthorizedAccessException(); } } ProgressHandler?.Invoke(null, new ProgressChangedEventArgs(Convert.ToInt32((CurrentPosition = BaseStream.Position) * 100d / BaseStream.Length), null)); } } }