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39 lines
1.5 KiB
Python
39 lines
1.5 KiB
Python
# Copyright © 2017 Tom Hacohen
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU Affero General Public License as
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# published by the Free Software Foundation, version 3.
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#
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# This library 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 this program. If not, see <http://www.gnu.org/licenses/>.
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from rest_framework import permissions
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from django_etesync.models import Collection, AccessLevels
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def is_collection_admin(collection, user):
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member = collection.members.filter(user=user).first()
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return (member is not None) and (member.accessLevel == AccessLevels.ADMIN)
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class IsCollectionAdmin(permissions.BasePermission):
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"""
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Custom permission to only allow owners of a collection to view it
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"""
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message = 'Only collection admins can perform this operation.'
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code = 'admin_access_required'
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def has_permission(self, request, view):
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collection_uid = view.kwargs['collection_uid']
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try:
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collection = view.get_collection_queryset().get(uid=collection_uid)
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return is_collection_admin(collection, request.user)
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except Collection.DoesNotExist:
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# If the collection does not exist, we want to 404 later, not permission denied.
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return True
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