public void ExtractFiles(string directory, params int[] indexes)
{
this.DisposedCheck();
this.ClearExceptions();
if (!SevenZipExtractor.CheckIndexes(indexes))
{
if (!this.ThrowException((SevenZipBase)null, (Exception) new ArgumentException("The indexes must be more or equal to zero.", nameof(indexes))))
{
return;
}
}
this.InitArchiveFileData(false);
uint[] numArray = new uint[indexes.Length];
for (int index = 0; index < indexes.Length; ++index)
{
numArray[index] = (uint)indexes[index];
}
foreach (uint num in numArray)
{
uint?filesCount = this._FilesCount;
if ((num < filesCount.GetValueOrDefault() ? 0 : (filesCount.HasValue ? 1 : 0)) != 0)
{
if (!this.ThrowException((SevenZipBase)null, (Exception) new ArgumentOutOfRangeException(nameof(indexes), "Index must be less than " + this._FilesCount.Value.ToString((IFormatProvider)CultureInfo.InvariantCulture) + "!")))
{
return;
}
}
}
List <uint> actualIndexes = new List <uint>((IEnumerable <uint>)numArray);
actualIndexes.Sort();
uint[] indexes1 = actualIndexes.ToArray();
if (this._IsSolid.Value)
{
indexes1 = SevenZipExtractor.SolidIndexes(indexes1);
}
try
{
IInStream archiveStream;
using ((archiveStream = this.GetArchiveStream(actualIndexes.Count != 1)) as IDisposable)
{
ArchiveOpenCallback archiveOpenCallback = this.GetArchiveOpenCallback();
ulong maxCheckStartPosition = 32768;
if (!this._Opened)
{
if (this._Archive.Open(archiveStream, ref maxCheckStartPosition, (IArchiveOpenCallback)archiveOpenCallback) != 0)
{
if (!this.ThrowException((SevenZipBase)null, (Exception) new SevenZipArchiveException()))
{
return;
}
}
this._Opened = true;
}
using (ArchiveExtractCallback archiveExtractCallback = this.GetArchiveExtractCallback(directory, (int)this._FilesCount.Value, actualIndexes))
{
try
{
this.CheckedExecute(this._Archive.Extract(indexes1, (uint)indexes1.Length, 0, (IArchiveExtractCallback)archiveExtractCallback), "The extraction has failed for an unknown reason with code ", (SevenZipBase)archiveExtractCallback);
}
finally
{
this.FreeArchiveExtractCallback(archiveExtractCallback);
}
}
}
this.OnExtractionFinished(EventArgs.Empty);
}
finally
{
if (actualIndexes.Count > 1)
{
this._Archive.Close();
this._ArchiveStream = (IInStream)null;
this._Opened = false;
}
}
this.ThrowUserException();
}
public void ExtractFile(int index, Stream stream)
{
this.DisposedCheck();
this.ClearExceptions();
if (!SevenZipExtractor.CheckIndexes(index))
{
if (!this.ThrowException((SevenZipBase)null, (Exception) new ArgumentException("The index must be more or equal to zero.", nameof(index))))
{
return;
}
}
if (!stream.CanWrite)
{
if (!this.ThrowException((SevenZipBase)null, (Exception) new ArgumentException("The specified stream can not be written.", nameof(stream))))
{
return;
}
}
this.InitArchiveFileData(false);
long num = (long)index;
uint?filesCount = this._FilesCount;
uint?nullable = filesCount.HasValue ? new uint?(filesCount.GetValueOrDefault() - 1U) : new uint?();
if ((num <= (long)nullable.GetValueOrDefault() ? 0 : (nullable.HasValue ? 1 : 0)) != 0)
{
if (!this.ThrowException((SevenZipBase)null, (Exception) new ArgumentOutOfRangeException(nameof(index), "The specified index is greater than the archive files count.")))
{
return;
}
}
uint[] indexes = new uint[1] {
(uint)index
};
if (this._IsSolid.Value)
{
indexes = SevenZipExtractor.SolidIndexes(indexes);
}
IInStream archiveStream = this.GetArchiveStream(false);
ArchiveOpenCallback archiveOpenCallback = this.GetArchiveOpenCallback();
ulong maxCheckStartPosition = 32768;
if (!this._Opened)
{
if (this._Archive.Open(archiveStream, ref maxCheckStartPosition, (IArchiveOpenCallback)archiveOpenCallback) != 0)
{
this.ThrowException((SevenZipBase)null, (Exception) new SevenZipArchiveException());
}
this._Opened = true;
}
using (ArchiveExtractCallback archiveExtractCallback = this.GetArchiveExtractCallback(stream, (uint)index, indexes.Length))
{
try
{
this.CheckedExecute(this._Archive.Extract(indexes, (uint)indexes.Length, 0, (IArchiveExtractCallback)archiveExtractCallback), "The extraction has failed for an unknown reason with code ", (SevenZipBase)archiveExtractCallback);
}
finally
{
this.FreeArchiveExtractCallback(archiveExtractCallback);
}
}
this.OnExtractionFinished(EventArgs.Empty);
this.ThrowUserException();
}