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75 lines
3.0 KiB
Python
75 lines
3.0 KiB
Python
# Copyright (c) 2013 AnsibleWorks, Inc.
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#
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# This file is part of Ansible Commander.
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#
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# Ansible Commander is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, version 3 of the License.
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#
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# Ansible Commander is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with Ansible Commander. If not, see <http://www.gnu.org/licenses/>.
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import logging
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from django.http import Http404
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from rest_framework.exceptions import PermissionDenied
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from rest_framework import permissions
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logger = logging.getLogger('lib.main.rbac')
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# FIXME: this will probably need to be subclassed by object type
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class CustomRbac(permissions.BasePermission):
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def _check_permissions(self, request, view, obj=None):
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# Check that obj (if given) is active, otherwise raise a 404.
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active = getattr(obj, 'active', getattr(obj, 'is_active', True))
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if callable(active):
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active = active()
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if not active:
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raise Http404()
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# Don't allow anonymous users. 401, not 403, hence no raised exception.
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if not request.user or request.user.is_anonymous():
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return False
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# Don't allow inactive users (and respond with a 403).
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if not request.user.is_active:
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raise PermissionDenied()
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# Always allow superusers (as long as they are active).
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if request.user.is_superuser:
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return True
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# If no obj is given, check list permissions.
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if obj is None:
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if getattr(view, 'list_permissions_check', None):
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if not view.list_permissions_check(request):
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raise PermissionDenied()
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elif not getattr(view, 'item_permissions_check', None):
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raise Exception('internal error, list_permissions_check or '
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'item_permissions_check must be defined')
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return True
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# Otherwise, check the item permissions for the given obj.
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else:
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if not view.item_permissions_check(request, obj):
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raise PermissionDenied()
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return True
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def has_permission(self, request, view, obj=None):
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logger.debug('has_permission(user=%s method=%s data=%r, %s, %r)',
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request.user, request.method, request.DATA,
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view.__class__.__name__, obj)
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try:
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response = self._check_permissions(request, view, obj)
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except Exception, e:
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logger.debug('has_permission raised %r', e, exc_info=True)
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raise
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else:
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logger.debug('has_permission returned %r', response)
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return response
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def has_object_permission(self, request, view, obj):
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return self.has_permission(request, view, obj)
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