"""authentication using google authentication service

:organization: Logilab

:copyright: 2008-2009 LOGILAB S.A. (Paris, FRANCE), all rights reserved.

:contact: http://www.logilab.fr/ -- mailto:contact@logilab.fr

"""

__docformat__ = "restructuredtext en"

from cubicweb.web.views.basecomponents import UserLink

from cubicweb.web.views.actions import LogoutAction

from google.appengine.api import users

class GAEUserLink(UserLink):

    def anon_user_link(self):

        self.w(self.req._('anonymous'))

        self.w(u'&nbsp;[<a class="logout" href="%s">%s</a>]'

               % (users.create_login_url(self.req.url()), self.req._('login')))

class GAELogoutAction(LogoutAction):

    def url(self):

        return users.create_logout_url(self.req.build_url('logout') )

def registration_callback(vreg):

    if hasattr(vreg.config, 'has_resource'):

        vreg.register(GAEUserLink, clear=True)

        vreg.register(GAELogoutAction, clear=True)