import xmlrpc

class LinkSleeveModerator(CommentModerator):

    """
    CommentModerator extension to check comment validity at LinkSleeve.
    """

    def moderate(self, comment, content_object):
        proxy = xmlrpclib.ServerProxy('http://www.linksleeve.org/slv.php')
        if proxy.slv(comment.comment) == 0:
            return True
        return False