ganeti_web/context_processors.py

   1 # Copyright (C) 2010 Oregon State University et al.
   2 #
   3 # This program is free software; you can redistribute it and/or
   4 # modify it under the terms of the GNU General Public License
   5 # as published by the Free Software Foundation; either version 2
   6 # of the License, or (at your option) any later version.
   7 #
   8 # This program is distributed in the hope that it will be useful,
   9 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  10 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  11 # GNU General Public License for more details.
  12 #
  13 # You should have received a copy of the GNU General Public License
  14 # along with this program; if not, write to the Free Software
  15 # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301,
  16 # USA.
  17
  18 from django.conf import settings
  19 from ganeti_web.models import Cluster
  20
  21
  22 def site(request):
  23     """
  24     adds site properties to the context
  25     """
  26     return {'SITE_DOMAIN':settings.SITE_DOMAIN, 'SITE_NAME':settings.SITE_NAME}
  27
  28
  29 ANONYMOUS_PERMISSIONS = dict(cluster_admin=False,
  30                              create_vm=False,
  31                              view_cluster=False)
  32
  33 CLUSTER_ADMIN_PERMISSIONS = dict(cluster_admin=True,
  34                              create_vm=True,
  35                              view_cluster=True)
  36
  37 def common_permissions(request):
  38     """
  39     adds common cluster perms to the context:
  40
  41         * cluster_admin
  42         * view_cluster
  43         * create vm
  44     """
  45     user = request.user
  46     if user.is_authenticated():
  47         if user.is_superuser:
  48             return CLUSTER_ADMIN_PERMISSIONS
  49
  50         perms = user.get_perms_any(Cluster)
  51
  52         if 'admin' in perms:
  53             return CLUSTER_ADMIN_PERMISSIONS
  54
  55         else:
  56             create_vm = 'create_vm' in perms
  57             view_cluster = any((p in perms for p in ['migrate','export','replace_disks','tags']))
  58
  59         return {
  60             'cluster_admin':False,
  61             'create_vm':create_vm,
  62             'view_cluster':view_cluster
  63         }
  64
  65     return ANONYMOUS_PERMISSIONS