+
+ # When passing our own FileHandler instance, build_opener won't add the
+ # default FileHandler and allows us to disable the file protocol, which
+ # can be used for malicious purposes (see
+ # https://github.com/rg3/youtube-dl/issues/8227)
+ file_handler = compat_urllib_request.FileHandler()
+
+ def file_open(*args, **kwargs):
+ raise compat_urllib_error.URLError('file:// scheme is explicitly disabled in youtube-dl for security reasons')
+ file_handler.file_open = file_open
+