// TODO: using this for XPS files results in documents that Microsoft XPS Viewer can't read
IStream *OpenDirAsZipStream(const WCHAR *dirPath, bool recursive)
{
if (!dir::Exists(dirPath))
return NULL;
ScopedComPtr<IStream> stream;
if (FAILED(CreateStreamOnHGlobal(NULL, TRUE, &stream)))
return NULL;
zlib_filefunc64_def ffunc;
fill_win32s_filefunc64(&ffunc);
zipFile zf = zipOpen2_64(stream, 0, NULL, &ffunc);
if (!zf)
return NULL;
size_t dirLen = str::Len(dirPath);
if (!path::IsSep(dirPath[dirLen - 1]))
dirLen++;
bool ok = true;
DirIter di(dirPath, recursive);
for (const WCHAR *filePath = di.First(); filePath && ok; filePath = di.Next()) {
CrashIf(!str::StartsWith(filePath, dirPath));
const WCHAR *nameInZip = filePath + dirLen;
size_t fileSize;
ScopedMem<char> fileData(file::ReadAll(filePath, &fileSize));
ok = fileData && AppendFileToZip(zf, nameInZip, fileData, fileSize);
}
int err = zipClose(zf, NULL);
if (!ok || err != ZIP_OK)
return NULL;
stream->AddRef();
return stream;
}
ZipFile::ZipFile(IStream *stream, ZipMethod method, Allocator *allocator) :
filenames(0, allocator), fileinfo(0, allocator), filepos(0, allocator),
allocator(allocator), commentLen(0)
{
zlib_filefunc64_def ffunc;
fill_win32s_filefunc64(&ffunc);
uf = unzOpen2_64(stream, &ffunc);
if (uf)
ExtractFilenames(method);
}