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139 lines
4.4 KiB
Python
139 lines
4.4 KiB
Python
"""Permission classes to be used within ninja-extra controllers.
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Some permissions are global (like `IsInGroup` or `IsRoot`),
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and some others are per-object (like `CanView` or `CanEdit`).
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Examples:
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# restrict all the routes of this controller
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# to subscribed users
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@api_controller("/foo", permissions=[IsSubscriber])
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class FooController(ControllerBase):
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@route.get("/bar")
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def bar_get(self):
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# This route inherits the permissions of the controller
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# ...
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@route.bar("/bar/{bar_id}", permissions=[CanView])
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def bar_get_one(self, bar_id: int):
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# per-object permission resolution happens
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# when calling either the `get_object_or_exception`
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# or `get_object_or_none` method.
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bar = self.get_object_or_exception(Counter, pk=bar_id)
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# you can also call the `check_object_permission` manually
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other_bar = Counter.objects.first()
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self.check_object_permissions(other_bar)
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# ...
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# This route is restricted to counter admins and root users
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@route.delete(
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"/bar/{bar_id}",
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permissions=[IsRoot | IsInGroup(settings.SITH_GROUP_COUNTER_ADMIN_ID)
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]
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def bar_delete(self, bar_id: int):
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# ...
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"""
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from typing import Any
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from django.http import HttpRequest
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from ninja_extra import ControllerBase
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from ninja_extra.permissions import BasePermission
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from counter.models import Counter
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class IsInGroup(BasePermission):
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"""Check that the user is in the group whose primary key is given."""
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def __init__(self, group_pk: int):
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self._group_pk = group_pk
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def has_permission(self, request: HttpRequest, controller: ControllerBase) -> bool:
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return request.user.is_in_group(pk=self._group_pk)
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class IsRoot(BasePermission):
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"""Check that the user is root."""
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def has_permission(self, request: HttpRequest, controller: ControllerBase) -> bool:
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return request.user.is_root
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class IsSubscriber(BasePermission):
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"""Check that the user is currently subscribed."""
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def has_permission(self, request: HttpRequest, controller: ControllerBase) -> bool:
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return request.user.is_subscribed
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class IsOldSubscriber(BasePermission):
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"""Check that the user has at least one subscription in its history."""
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def has_permission(self, request: HttpRequest, controller: ControllerBase) -> bool:
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return request.user.was_subscribed
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class CanView(BasePermission):
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"""Check that this user has the permission to view the object of this route.
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Wrap the `user.can_view(obj)` method.
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To see an example, look at the example in the module docstring.
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"""
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def has_permission(self, request: HttpRequest, controller: ControllerBase) -> bool:
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return True
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def has_object_permission(
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self, request: HttpRequest, controller: ControllerBase, obj: Any
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) -> bool:
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return request.user.can_view(obj)
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class CanEdit(BasePermission):
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"""Check that this user has the permission to edit the object of this route.
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Wrap the `user.can_edit(obj)` method.
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To see an example, look at the example in the module docstring.
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"""
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def has_permission(self, request: HttpRequest, controller: ControllerBase) -> bool:
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return True
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def has_object_permission(
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self, request: HttpRequest, controller: ControllerBase, obj: Any
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) -> bool:
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return request.user.can_edit(obj)
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class IsOwner(BasePermission):
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"""Check that this user owns the object of this route.
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Wrap the `user.is_owner(obj)` method.
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To see an example, look at the example in the module docstring.
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"""
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def has_permission(self, request: HttpRequest, controller: ControllerBase) -> bool:
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return True
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def has_object_permission(
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self, request: HttpRequest, controller: ControllerBase, obj: Any
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) -> bool:
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return request.user.is_owner(obj)
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class IsLoggedInCounter(BasePermission):
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"""Check that a user is logged in a counter."""
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def has_permission(self, request: HttpRequest, controller: ControllerBase) -> bool:
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if "/counter/" not in request.META.get("HTTP_REFERER", ""):
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return False
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token = request.session.get("counter_token")
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if not token:
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return False
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return Counter.objects.filter(token=token).exists()
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CanAccessLookup = IsOldSubscriber | IsRoot | IsLoggedInCounter
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