Merge branch 'pre-auth' into basic_auth

[mediagoblin.git] / mediagoblin / tools / request.py

# GNU MediaGoblin -- federated, autonomous media hosting
# Copyright (C) 2011, 2012 MediaGoblin contributors.  See AUTHORS.
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program 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 Affero General Public License for more details.
#
# You should have received a copy of the GNU Affero General Public License
# along with this program.  If not, see <http://www.gnu.org/licenses/>.

import logging
from mediagoblin.db.models import User

_log = logging.getLogger(__name__)


def setup_user_in_request(request):
    """
    Examine a request and tack on a request.user parameter if that's
    appropriate.
    """
    if 'user_id' not in request.session:
        request.user = None
        return

    request.user = User.query.get(request.session['user_id'])

    if not request.user:
        # Something's wrong... this user doesn't exist?  Invalidate
        # this session.
        _log.warn("Killing session for user id %r", request.session['user_id'])
        request.session.delete()