Add new Directory with Poco::zip always give Exception - c++

Question

I'm building a Compress/Decompress functions and currently, I only able to compress 1 single file into a zip file. Each time I add a new Directory or add Recursively a Directory it always give me Exception.
Here is my ZipFile function:
Poco::DateTime(Timestamp);
set <string> extensionsSet;
std::ofstream fos(target, ios::binary);
Poco::Zip::Compress c(fos, true);
for (int i = 0; i < extensions.Size(); i++) {
string ext = std::dynamic_pointer_cast<String>(extensions.operator[](i))->GetPrimitive();
extensionsSet.insert(ext);
}
c.setStoreExtensions(extensionsSet);//set extensions List
Poco::File aFile(source);
if (aFile.exists())
{
Poco::Path p(aFile.path());
if (aFile.isDirectory())
{
Poco::Path sourceDir(source);
Poco::Path targetDir(target);
c.addDirectory(targetDir, Poco::DateTime(Timestamp));// give exception
targetDir.makeDirectory();
c.addRecursive(sourceDir);
}
else if (aFile.isFile())
{
c.addFile(p, p.getFileName());
}
}
else {
_log.EndMethod();
throw new FileNotFoundException("File Not Found");
}
c.close(); // MUST be done to finalize the Zip file
fos.close();
Here is where my exception, the underneath block of code is within addDirectory methods of Poco:
if (!ZipCommon::isValidPath(fileStr))
throw ZipException("Illegal entry name " + fileStr + " containing parent directory reference");

Answer 1

There is a member in "Poco::Path" called "absolute".
You can set absolute to false by constructor
otherwise the ZipException is thrown because this function returns "false":
bool ZipCommon::isValidPath(const std::string& path)
{
try
{
if (Path(path, Path::PATH_UNIX).isAbsolute() || Path(path, Path::PATH_WINDOWS).isAbsolute())
return false;
}
...
}
Here is a example:
std::ofstream fos(target, ios::binary);
Poco::Zip::Compress compress(fos, true);
std::vector<std::string> dirs; // parent dirs in zip file
Poco::Path myPath(false); // set path to non-absolute
// add parent directories
for (auto& dir : dirs)
{
myPath.pushDirectory(dir);
}
//add file
myPath.setFileName("FileName.txt");
//add file to archive
compress.addFile(theFile, relativePath);
//close archive and get zipArchiveObject
ZipArchive zipArchive(compress.close());