1 1) It's about time I separated VALID_FOO_URL_REGEX into a list of
2 possible regular expressions.
4 2) After #1 is done, the owns_url? method can be factored out.
6 3) Merge the Mentalzero get_video_filename with the algorithm in the
7 Xvideos class. Only the last lines differ. Maybe we could have a
8 collection of filename-getting algorithms.