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# Copyright (C) 2010 Linaro Limited
#
# Author: Zygmunt Krynicki <zygmunt.krynicki@linaro.org>
#
# This file is part of django-restricted-resource.
#
# django-restricted-resource is free software: you can redistribute it and/or modify
# it under the terms of the GNU Lesser General Public License version 3
# as published by the Free Software Foundation
#
# django-restricted-resource is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public License
# along with django-restricted-resource. If not, see <http://www.gnu.org/licenses/>.
def filter_bogus_users(user):
"""
Check for bogus instances of user (anonymous, disabled, etc) and
change them to None. This simplifies user comparison and handling.
If the user is `None' then he's not trusted, period, no need to
check deeper.
"""
if user is not None and user.is_authenticated and user.is_active:
return user
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