public string Extract(string archiveName, string folderToExtract, uint fileNumber, KnownSevenZipFormat ZipFormat, out bool isDirectory)
{
isDirectory = false;
ZipFormatG = ZipFormat;
string FileName = null;
try
{
using (SevenZipFormat Format = new SevenZipFormat(SevenZipDllPath))
{
IInArchive Archive = Format.CreateInArchive(SevenZipFormat.GetClassIdFromKnownFormat(ZipFormat));
if (Archive == null)
{
return(null);
}
try
{
using (InStreamWrapper ArchiveStream = new InStreamWrapper(File.OpenRead(archiveName)))
{
IArchiveOpenCallback OpenCallback = new ArchiveOpenCallback();
ulong CheckPos = 256 * 1024;
if (Archive.Open(ArchiveStream, ref CheckPos, OpenCallback) != 0)
{
return(null);
}
PropVariant Name = new PropVariant();
Archive.GetProperty(fileNumber, ItemPropId.kpidPath, ref Name);
FileName = (string)Name.GetObject();
Archive.GetProperty(fileNumber, ItemPropId.kpidIsFolder, ref Name);
isDirectory = (bool)Name.GetObject();
if (!isDirectory)
{
Archive.Extract(new uint[] { fileNumber }, 1, 0, new ArchiveExtractCallback(fileNumber, folderToExtract + FileName));
}
}
}
finally
{
Marshal.ReleaseComObject(Archive);
}
}
}
catch
{
}
return(FileName);
}
private static void ListOrExtract(string archiveName, string extractLocation, bool extract)
{
using (SevenZipFormat Format = new SevenZipFormat(SevenZDllPath)) {
IInArchive Archive = Format.CreateInArchive(SevenZipFormat.GetClassIdFromKnownFormat(KnownSevenZipFormat.SevenZip));
if (Archive == null)
{
return;
}
try {
using (InStreamWrapper ArchiveStream = new InStreamWrapper(File.OpenRead(archiveName))) {
IArchiveOpenCallback OpenCallback = new ArchiveOpenCallback();
// 32k CheckPos is not enough for some 7z archive formats
ulong CheckPos = 128 * 1024;
if (Archive.Open(ArchiveStream, ref CheckPos, OpenCallback) != 0)
{
return;
}
if (extract)
{
uint Count = Archive.GetNumberOfItems();
for (int i = 0; i < Count; i++)
{
PropVariant Name = new PropVariant();
Archive.GetProperty((uint)i, ItemPropId.kpidPath, ref Name);
string FileName = (string)Name.GetObject();
Archive.Extract(new uint[] { (uint)i }, 1, 0, new ArchiveExtractCallback((uint)i, FileName, extractLocation));
}
}
else
{
//Console.WriteLine("List:");
String files = "";
uint Count = Archive.GetNumberOfItems();
for (uint I = 0; I < Count; I++)
{
PropVariant Name = new PropVariant();
Archive.GetProperty(I, ItemPropId.kpidPath, ref Name);
files += String.Format("{0} - {1}\r\n", I, Name.GetObject());
}
MessageBox.Show(files);
}
}
} finally {
Marshal.ReleaseComObject(Archive);
}
}
}
public List <string> List(string archiveName, KnownSevenZipFormat ZipFormat)
{
List <string> List = new List <string>();
using (SevenZipFormat Format = new SevenZipFormat(SevenZipDllPath))
{
IInArchive Archive = Format.CreateInArchive(SevenZipFormat.GetClassIdFromKnownFormat(ZipFormat));
if (Archive == null)
{
return(List);
}
try
{
using (InStreamWrapper ArchiveStream = new InStreamWrapper(File.OpenRead(archiveName)))
{
IArchiveOpenCallback OpenCallback = new ArchiveOpenCallback();
ulong CheckPos = 256 * 1024;
if (Archive.Open(ArchiveStream, ref CheckPos, OpenCallback) != 0)
{
return(List);
}
uint Count = Archive.GetNumberOfItems();
for (uint I = 0; I < Count; I++)
{
PropVariant Name = new PropVariant();
Archive.GetProperty(I, ItemPropId.kpidPath, ref Name);
string[] T = Name.GetObject().ToString().Split('\\');
List.Add(T[T.Length - 1]);
}
}
}
finally
{
Marshal.ReleaseComObject(Archive);
}
}
return(List);
}
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);
}
}