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−# copyright 2003-2010 LOGILAB S.A. (Paris, FRANCE), all rights reserved.
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−# contact http://www.logilab.fr/ -- mailto:contact@logilab.fr
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−#
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−# This file is part of CubicWeb.
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−#
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−# CubicWeb is free software: you can redistribute it and/or modify it under the
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−# terms of the GNU Lesser General Public License as published by the Free
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−# Software Foundation, either version 2.1 of the License, or (at your option)
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−# any later version.
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−#
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−# CubicWeb is distributed in the hope that it will be useful, but WITHOUT
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−# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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−# FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public License for more
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−# details.
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−#
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−# You should have received a copy of the GNU Lesser General Public License along
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−# with CubicWeb.  If not, see <http://www.gnu.org/licenses/>.
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−"""authentication using google authentication service
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−
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−"""
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−__docformat__ = "restructuredtext en"
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−
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−from cubicweb.web.views.basecomponents import UserLink
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−from cubicweb.web.views.actions import LogoutAction
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−
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−from google.appengine.api import users
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−
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−
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−class GACWUserLink(UserLink):
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−
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−    def anon_user_link(self):
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−        self.w(self.req._('anonymous'))
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−        self.w(u'&#160;[<a class="logout" href="%s">%s</a>]'
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−               % (users.create_login_url(self.req.url()), self.req._('login')))
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−
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−class GAELogoutAction(LogoutAction):
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−
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−    def url(self):
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−        return users.create_logout_url(self.req.build_url('logout') )
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−
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−def registration_callback(vreg):
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−    if hasattr(vreg.config, 'has_resource'):
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−        vreg.register(GACWUserLink, clear=True)
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−        vreg.register(GAELogoutAction, clear=True)