static bool ExtractFiles(lzma::SimpleArchive *archive)
{
lzma::FileInfo *fi;
char *uncompressed;
FileTransaction trans;
for (int i = 0; gPayloadData[i].fileName; i++) {
if (!gPayloadData[i].install)
continue;
int idx = lzma::GetIdxFromName(archive, gPayloadData[i].fileName);
if (-1 == idx) {
NotifyFailed(_TR("Some files to be installed are damaged or missing"));
return false;
}
fi = &archive->files[idx];
uncompressed = lzma::GetFileDataByIdx(archive, idx, nullptr);
if (!uncompressed) {
NotifyFailed(_TR("The installer has been corrupted. Please download it again.\nSorry for the inconvenience!"));
return false;
}
ScopedMem<WCHAR> filePath(str::conv::FromUtf8(fi->name));
ScopedMem<WCHAR> extPath(path::Join(gGlobalData.installDir, filePath));
bool ok = trans.WriteAll(extPath, uncompressed, fi->uncompressedSize);
free(uncompressed);
if (!ok) {
ScopedMem<WCHAR> msg(str::Format(_TR("Couldn't write %s to disk"), filePath));
NotifyFailed(msg);
return false;
}
trans.SetModificationTime(extPath, fi->ftModified);
ProgressStep();
}
return trans.Commit();
}
static bool InstallCopyFiles()
{
// extract all payload files one by one (transacted, if possible)
ZipFile archive(GetOwnPath());
FileTransaction trans;
for (int i = 0; gPayloadData[i].filepath; i++) {
// skip files that are only uninstalled
if (!gPayloadData[i].install)
continue;
ScopedMem<WCHAR> filepathT(str::conv::FromUtf8(gPayloadData[i].filepath));
size_t size;
ScopedMem<char> data(archive.GetFileData(filepathT, &size));
if (!data) {
NotifyFailed(L"Some files to be installed are damaged or missing");
return false;
}
ScopedMem<WCHAR> extpath(path::Join(gGlobalData.installDir, path::GetBaseName(filepathT)));
bool ok = trans.WriteAll(extpath, data, size);
if (!ok) {
ScopedMem<WCHAR> msg(str::Format(L"Couldn't write %s to disk", filepathT));
NotifyFailed(msg);
return false;
}
// set modification time to original value
FILETIME ftModified = archive.GetFileTime(filepathT);
trans.SetModificationTime(extpath, ftModified);
ProgressStep();
}
return trans.Commit();
}