private static extern int PropVariantClear(ref PropVariant pvar);
private string ExtractFile(string fileName)
{
if (isMono)
return fileName;
SystemState old = state;
state = SystemState.SystemPause;
string ext = Path.GetExtension(fileName).ToLower();
if (ext == ".7z" || ext == ".zip" || ext == ".rar")
{
string sevenZ = this.config["7z"];
if (IntPtr.Size == 8)
sevenZ = this.config["7z64"]; //replace this with installer logic maybe?
SevenZipFormat Format = new SevenZipFormat(sevenZ);
KnownSevenZipFormat fileType;
switch (ext)
{
default:
case ".7z":
fileType = KnownSevenZipFormat.SevenZip;
break;
case ".zip":
fileType = KnownSevenZipFormat.Zip;
break;
case ".rar":
fileType = KnownSevenZipFormat.Rar;
break;
}
IInArchive Archive = Format.CreateInArchive(SevenZipFormat.GetClassIdFromKnownFormat(fileType));
try
{
InStreamWrapper ArchiveStream = new InStreamWrapper(File.OpenRead(fileName));
ulong checkPos = 32 * 1024;
Archive.Open(ArchiveStream, ref checkPos, null);
uint count = Archive.GetNumberOfItems();
string[] archiveContent = new string[count];
for (uint i = 0; i < count; i++)
{
PropVariant name = new PropVariant();
Archive.GetProperty(i, ItemPropId.kpidPath, ref name);
archiveContent[i] = name.GetObject().ToString();
}
if (count == 1)
{
fileName = Path.Combine(this.config["tmpDir"], Path.GetFileNameWithoutExtension(archiveContent[0]) + ".tmp" + Path.GetExtension(archiveContent[0]));
Archive.Extract(new uint[] { 0 }, 1, 0, new ArchiveCallback(0, fileName));
}
else
{
ArchiveViewer viewer = new ArchiveViewer(archiveContent);
if (viewer.ShowDialog() == System.Windows.Forms.DialogResult.OK)
{
fileName = Path.Combine(this.config["tmpDir"], Path.GetFileNameWithoutExtension(archiveContent[viewer.selectedFile]) + ".tmp" + Path.GetExtension(archiveContent[0]));
Archive.Extract(new uint[] { (uint)viewer.selectedFile }, 1, 0, new ArchiveCallback((uint)viewer.selectedFile, fileName));
}
else
{
fileName = "";
}
}
ArchiveStream.Dispose();
}
finally
{
Archive.Close();
Marshal.ReleaseComObject(Archive);
}
Format.Dispose();
}
state = old;
return fileName;
}
