28 lines
1.0 KiB
Python
28 lines
1.0 KiB
Python
from rest_framework.permissions import BasePermission, SAFE_METHODS
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class IsOwnerOrUnclaimed(BasePermission):
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"""
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Permission for resources with an optional `user` FK.
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- POST (create): open to anyone — viewset sets user=None for anonymous callers.
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- GET list: viewset filters to own records (or returns empty for anonymous).
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- GET detail: open to anyone with the ID.
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- PATCH/PUT/DELETE:
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* unclaimed (user=None) → anyone may mutate.
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* claimed (user set) → owner only.
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NOTE: The global DRF default is IsAuthenticated; this class must be
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explicitly declared on every viewset in the tools app.
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"""
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def has_permission(self, request, view):
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return True # object-level and queryset filtering handle the rest
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def has_object_permission(self, request, view, obj):
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if request.method in SAFE_METHODS:
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return True
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if obj.user is None:
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return True
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return request.user.is_authenticated and obj.user == request.user
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