mediagoblin/tools/request.py

   1 # GNU MediaGoblin -- federated, autonomous media hosting
   2 # Copyright (C) 2011 MediaGoblin contributors.  See AUTHORS.
   3 #
   4 # This program is free software: you can redistribute it and/or modify
   5 # it under the terms of the GNU Affero General Public License as published by
   6 # the Free Software Foundation, either version 3 of the License, or
   7 # (at your option) any later version.
   8 #
   9 # This program is distributed in the hope that it will be useful,
  10 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12 # GNU Affero General Public License for more details.
  13 #
  14 # You should have received a copy of the GNU Affero General Public License
  15 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
  16
  17 from mediagoblin.db.util import ObjectId
  18
  19 def setup_user_in_request(request):
  20     """
  21     Examine a request and tack on a request.user parameter if that's
  22     appropriate.
  23     """
  24     if not request.session.has_key('user_id'):
  25         request.user = None
  26         return
  27
  28     user = None
  29     user = request.app.db.User.one(
  30         {'_id': ObjectId(request.session['user_id'])})
  31
  32     if not user:
  33         # Something's wrong... this user doesn't exist?  Invalidate
  34         # this session.
  35         request.session.invalidate()
  36
  37     request.user = user