public void Extract(ArchiveDatabase _db, int[] indices, IPasswordProvider pw)
{
int numItems;
bool allFilesMode = (indices == null);
if (allFilesMode)
numItems = _db.Files.Count;
else
numItems = indices.Length;
if (numItems == 0)
return;
List<CExtractFolderInfo> extractFolderInfoVector = new List<CExtractFolderInfo>();
for (int i = 0; i < numItems; i++)
{
int fileIndex = allFilesMode ? i : indices[i];
int folderIndex = _db.FileIndexToFolderIndexMap[fileIndex];
if (folderIndex == -1)
{
extractFolderInfoVector.Add(new CExtractFolderInfo(fileIndex, -1));
continue;
}
if (extractFolderInfoVector.Count == 0 || folderIndex != extractFolderInfoVector.Last().FolderIndex)
extractFolderInfoVector.Add(new CExtractFolderInfo(-1, folderIndex));
CExtractFolderInfo efi = extractFolderInfoVector.Last();
int startIndex = _db.FolderStartFileIndex[folderIndex];
for (int index = efi.ExtractStatuses.Count; index <= fileIndex - startIndex; index++)
efi.ExtractStatuses.Add(index == fileIndex - startIndex);
}
foreach (CExtractFolderInfo efi in extractFolderInfoVector)
{
int startIndex;
if (efi.FileIndex != -1)
startIndex = efi.FileIndex;
else
startIndex = _db.FolderStartFileIndex[efi.FolderIndex];
var outStream = new FolderUnpackStream(_db, 0, startIndex, efi.ExtractStatuses);
if (efi.FileIndex != -1)
continue;
int folderIndex = efi.FolderIndex;
CFolder folderInfo = _db.Folders[folderIndex];
int packStreamIndex = _db.Folders[folderIndex].FirstPackStreamId;
long folderStartPackPos = _db.GetFolderStreamPos(folderInfo, 0);
List<long> packSizes = new List<long>();
for (int j = 0; j < folderInfo.PackStreams.Count; j++)
packSizes.Add(_db.PackSizes[packStreamIndex + j]);
// TODO: If the decoding fails the last file may be extracted incompletely. Delete it?
Stream s = DecoderStreamHelper.CreateDecoderStream(_stream, folderStartPackPos, packSizes.ToArray(),
folderInfo, pw);
byte[] buffer = new byte[4 << 10];
for (; ; )
{
int processed = s.Read(buffer, 0, buffer.Length);
if (processed == 0)
break;
outStream.Write(buffer, 0, processed);
}
}
}
public void Extract(ArchiveDatabase _db, int[] indices, IPasswordProvider pw)
{
int count;
bool flag = indices == null;
if (flag)
{
count = _db.Files.Count;
}
else
{
count = indices.Length;
}
if (count != 0)
{
int folderIndex;
int num5;
List<CExtractFolderInfo> source = new List<CExtractFolderInfo>();
for (int i = 0; i < count; i++)
{
int fileIndex = flag ? i : indices[i];
folderIndex = _db.FileIndexToFolderIndexMap[fileIndex];
if (folderIndex == -1)
{
source.Add(new CExtractFolderInfo(fileIndex, -1));
}
else
{
if ((source.Count == 0) || (folderIndex != Enumerable.Last<CExtractFolderInfo>(source).FolderIndex))
{
source.Add(new CExtractFolderInfo(-1, folderIndex));
}
CExtractFolderInfo info = Enumerable.Last<CExtractFolderInfo>(source);
num5 = _db.FolderStartFileIndex[folderIndex];
for (int j = info.ExtractStatuses.Count; j <= (fileIndex - num5); j++)
{
info.ExtractStatuses.Add(j == (fileIndex - num5));
}
}
}
foreach (CExtractFolderInfo info in source)
{
int num10;
bool flag2;
if (info.FileIndex != -1)
{
num5 = info.FileIndex;
}
else
{
num5 = _db.FolderStartFileIndex[info.FolderIndex];
}
FolderUnpackStream stream = new FolderUnpackStream(_db, 0, num5, info.ExtractStatuses);
if (info.FileIndex != -1)
{
continue;
}
folderIndex = info.FolderIndex;
CFolder folder = _db.Folders[folderIndex];
int firstPackStreamId = _db.Folders[folderIndex].FirstPackStreamId;
long folderStreamPos = _db.GetFolderStreamPos(folder, 0);
List<long> list2 = new List<long>();
for (int k = 0; k < folder.PackStreams.Count; k++)
{
list2.Add(_db.PackSizes[firstPackStreamId + k]);
}
Stream stream2 = DecoderStreamHelper.CreateDecoderStream(this._stream, folderStreamPos, list2.ToArray(), folder, pw);
byte[] buffer = new byte[0x1000];
goto Label_0252;
Label_0223:
num10 = stream2.Read(buffer, 0, buffer.Length);
if (num10 == 0)
{
continue;
}
stream.Write(buffer, 0, num10);
Label_0252:
flag2 = true;
goto Label_0223;
}
}
}
