It looks like dos.yaml doesn't protect static files. I don't know if there's a bug or feature request logged for this, but this person's solution was to serve static files through a simple python handler:
https://groups.google.com/forum/#!topic/google-appengine/fGpC8Mb5JCM -- You received this message because you are subscribed to the Google Groups "Google App Engine" group. To post to this group, send email to google-appengine@googlegroups.com. To unsubscribe from this group, send email to google-appengine+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine?hl=en.
