def safe_extract_zip(f, path, strip_toplevel=True):
 close = False
 if (not isinstance(f, zipfile.ZipFile)):
  close = isinstance(f, six.string_types)
  zf = zipfile.ZipFile(f, 'r')
 else:
  zf = f
 try:
  members = zf.namelist()
  if strip_toplevel:
   prefix = find_common_prefix(members)
  else:
   prefix = ''
  for member in members:
   if member.endswith('/'):
    continue
   if ((not member.startswith(prefix)) or is_unsafe_path(member)):
    continue
   dst_path = os.path.join(path, member[len(prefix):])
   try:
    os.makedirs(os.path.dirname(dst_path))
   except OSError:
    pass
   with open(dst_path, 'wb') as df:
    with zf.open(member) as sf:
     shutil.copyfileobj(sf, df)
 finally:
  if close:
   zf.close()

def safe_extract_zip ( f , path , strip_toplevel = True ) : close = False if ( not isinstance ( f , zipfile . ZipFile ) ) : close = isinstance ( f , six . string_types ) zf = zipfile . ZipFile ( f , 'r' ) else : zf = f try : members = zf . namelist ( ) if strip_toplevel : prefix = find_common_prefix ( members ) else : prefix = '' for member in members : if member . endswith ( '/' ) : continue if ( ( not member . startswith ( prefix ) ) or is_unsafe_path ( member ) ) : continue dst_path = os . path . join ( path , member [ len ( prefix ) : ] ) try : os . makedirs ( os . path . dirname ( dst_path ) ) except OSError : pass with open ( dst_path , 'wb' ) as df : with zf . open ( member ) as sf : shutil . copyfileobj ( sf , df ) finally : if close : zf . close ( )
safely extract a given zip file to a path .