paula.groups/trunk/src/paula/groups/subscribers.py

   1 # Copyright (c) 2008 by Florian Friesdorf
   2 #
   3 # GNU Affero General Public License (AGPL)
   4 #
   5 # This program is free software; you can redistribute it and/or modify
   6 # it under the terms of the GNU Affero General Public License as
   7 # published by the Free Software Foundation; either version 3 of the
   8 # License, or (at your option) any later version.
   9 #
  10 # This program is distributed in the hope that it will be useful,
  11 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  12 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  13 # GNU Affero General Public License for more details.
  14 #
  15 # You should have received a copy of the GNU Affero General Public
  16 # License along with this program.  If not, see
  17 # <http://www.gnu.org/licenses/>.
  18 """
  19 """
  20 __author__ = "Florian Friesdorf <flo@chaoflow.net>"
  21 __docformat__ = "plaintext"
  22
  23 from zope.app.authentication.interfaces import IPrincipalCreated
  24 from zope.app.component.hooks import getSite
  25
  26 from zope.security.interfaces import IGroupAwarePrincipal
  27 from zope.component import adapter, queryUtility
  28
  29 from paula.groups.interfaces import IMemberships
  30
  31
  32 @adapter(IPrincipalCreated)
  33 def setGroupsForPrincipal(event):
  34     """Put groups onto the principal
  35     """
  36     principal = event.principal
  37     if not IGroupAwarePrincipal.providedBy(principal):
  38         return None
  39
  40     # we search for a group membership utility in the context of the auth
  41     # plugin that authenticated the principal, if there is none, we do
  42     # nothing
  43     mu = queryUtility(
  44             IMemberships,
  45     #        context=getSite(),
  46             )
  47     # XXX: for some reason a mu is False
  48     if mu is None:
  49         return
  50
  51     groups = mu.getGroupsForPrincipal(principal.id)
  52     principal.groups.extend(groups)