97 lines
2.9 KiB
Python
97 lines
2.9 KiB
Python
#!/usr/bin/env python
|
|
# -*- coding: utf-8 -*-
|
|
"""
|
|
openslides.utils.auth.AnonymousAuth
|
|
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
|
|
|
|
Functions for authenticate anonymous user.
|
|
|
|
:copyright: 2011, 2012 by OpenSlides team, see AUTHORS.
|
|
:license: GNU GPL, see LICENSE for more details.
|
|
"""
|
|
|
|
from django.contrib.auth.models import Permission
|
|
from openslides.config.models import config
|
|
|
|
|
|
class AnonymousAuth(object):
|
|
"""
|
|
Authenticates the AnonymousUser against the Permission-Group 'Anonymous'.
|
|
No rights are granted unless the group is defined and contains them.
|
|
"""
|
|
supports_anonymous_user = True
|
|
supports_inactive_user = True
|
|
supports_object_permissions = False
|
|
|
|
def authenticate(self, username=None, password=None):
|
|
"""
|
|
Authenticate a user based in username / password.
|
|
|
|
- always return None as anonymous can't login..
|
|
"""
|
|
return None
|
|
|
|
def get_group_permissions(self, user_obj, obj=None):
|
|
"""
|
|
Return the permissions a user is graneted by his group membership(s).
|
|
|
|
- try to return the permissions for the 'Anonymous' group
|
|
"""
|
|
if (not user_obj.is_anonymous() or obj is not None or
|
|
not config['system_enable_anonymous']):
|
|
return set()
|
|
|
|
perms = Permission.objects.filter(group__name='Anonymous')
|
|
if perms is None:
|
|
return set()
|
|
perms = perms.values_list('content_type__app_label', 'codename') \
|
|
.order_by()
|
|
return set([u'%s.%s' % (ct, name) for ct, name in perms])
|
|
|
|
def get_all_permissions(self, user_obj, obj=None):
|
|
"""
|
|
Return all permissions a user is granted including goup permissions.
|
|
|
|
- for anonymous it's identical to get_group_permissions
|
|
"""
|
|
return self.get_group_permissions(user_obj, obj)
|
|
|
|
def has_perm(self, user_obj, perm, obj=None):
|
|
"""
|
|
Check if the user as a specific permission
|
|
"""
|
|
if (not user_obj.is_anonymous() or obj is not None or
|
|
not config['system_enable_anonymous']):
|
|
return False
|
|
|
|
return (perm in self.get_all_permissions(user_obj))
|
|
|
|
def has_module_perm(self, user_obj, app_label):
|
|
"""
|
|
Check if the user has permissions on the module app_label
|
|
"""
|
|
if (not user_obj.is_anonymous() or
|
|
not config['system_enable_anonymous']):
|
|
return False
|
|
|
|
for perm in self.get_all_permissions(user_obj):
|
|
if perm[:perm.index('.')] == app_label:
|
|
return True
|
|
return False
|
|
|
|
def get_user(self, user_id):
|
|
"""
|
|
Return the User object for user_id
|
|
|
|
- for anonymous it's always None
|
|
"""
|
|
return None
|
|
|
|
|
|
def anonymous_context_additions(RequestContext):
|
|
"""
|
|
Add a variable to the request context that will indicate
|
|
if anonymous login is possible at all.
|
|
"""
|
|
return {'os_enable_anonymous_login': config['system_enable_anonymous']}
|