# -*- coding: utf-8 -*-

import urlparse

from lib import unshortenit

SERVICES_SHORT = ["adf.ly", "sh.st", "bit.ly", "ul.to"]


def expand_url(url):
    e = unshortenit.UnshortenIt()

    while Es_Corto(url):
        long_url, estado = e.unshorten(url)
        url = long_url

    return long_url


def Es_Corto(url):
    server = urlparse.urlsplit(url).netloc
    Corto = (server in SERVICES_SHORT)
    return Corto