def is_rarfile(filename):
"""Return true if file is a valid RAR file."""
mode = constants.RAR_OM_LIST_INCSPLIT
archive = unrarlib.RAROpenArchiveDataEx(filename, mode=mode)
try:
handle = unrarlib.RAROpenArchiveEx(ctypes.byref(archive))
except unrarlib.UnrarException:
return False
unrarlib.RARCloseArchive(handle)
return (archive.OpenResult == constants.SUCCESS)
def _close(self, handle):
"""Close RAR archive file."""
try:
unrarlib.RARCloseArchive(handle)
except unrarlib.UnrarException:
raise BadRarFile("RAR archive close error.")