/* ----------------------------------------------------------------- */
///
/// Terminate
///
/// <summary>
/// Invokes post processing and throws an exception if needed.
/// </summary>
///
/* ----------------------------------------------------------------- */
internal static void Terminate(this IEnumerable <ArchiveItem> src,
ArchiveExtractCallback cb, PasswordQuery query)
{
if (cb.Result == OperationResult.OK)
{
return;
}
if (cb.Result == OperationResult.UserCancel)
{
throw new OperationCanceledException();
}
if (cb.Result == OperationResult.WrongPassword ||
cb.Result == OperationResult.DataError && src.Any(x => x.Encrypted))
{
query.Reset();
throw new EncryptionException();
}
throw cb.Exception ?? new System.IO.IOException($"{cb.Result}");
}
public IDisposable Subscribe(IObserver <SevenZipArchiveFile> observer)
{
var subject = new Subject <SevenZipArchiveFile>();
subject.Subscribe(observer);
var archive = format.CreateInArchive(SevenZipFormat.GetClassIdFromKnownFormat(KnownSevenZipFormat.SevenZip));
try
{
using (var fileStream = File.OpenRead(this.Name))
{
var maxCheckStartPosition = 128UL * 1024UL;
if (archive.Open(new InStreamWrapper(fileStream), ref maxCheckStartPosition, new ArchiveOpenCallback()) != 0)
{
throw new IOException();
}
var indices = Enumerable.Range(0, (int)archive.GetNumberOfItems())
.Select(index => (uint)index)
.Where(index =>
{
var value = new PropVariant();
archive.GetProperty(index, ItemPropId.kpidIsFolder, ref value);
return(!(bool)value.GetObject());
})
.ToArray();
using (var callback = new ArchiveExtractCallback(archive))
{
callback.Subscribe(subject);
archive.Extract(indices, (uint)indices.Length, 0, callback);
}
}
subject.OnCompleted();
return(subject);
}
finally
{
Marshal.ReleaseComObject(archive);
}
}