Complex permissions flow for django-rest-framework.
The easiest way to install the latest version is by using pip/easy_install to pull it from PyPI:
pip install rest_condition
You may also use Git to clone the repository from Github and install it manually:
git clone https://github.com/caxap/rest_condition.git python setup.py install
from rest_framework.response import Response
from rest_framework.views import APIView
from rest_framework.permissions import BasePermission
from rest_condition import ConditionalPermission, C, And, Or, Not
class Perm1(BasePermission):
def has_permission(self, request, view):
# You permissions check here
return True
class Perm2(BasePermission):
def has_permission(self, request, view):
# You permissions check here
return False
# Example of possible expressions
expr1 = Or(Perm1, Perm2) # same as: C(Perm1) | Perm2
expr2 = And(Perm1, Perm2) # same as: C(Perm1) & Perm2
expr3 = Not(Perm1) # same as: ~C(Perm1)
expr4 = And(Not(Perm1), Or(Perm1, Not(Perm2))) # same as: ~C(Perm1) & (C(Perm1) | ~C(Perm2))
# Using expressions in API views
class ExampleView(APIView):
permission_classes = [Or(And(Perm1, Perm2), Not(Perm2)), ]
# Or just simple:
# permission_classes = [C(Perm1) & Perm2 | ~C(Perm2), ]
def get(self, request, format=None):
content = {'status': 'request was permitted'}
return Response(content)
class OtherExampleView(ExampleView):
# Using ConditionalPermission class
permission_classes = [ConditionalPermission, ]
permission_condition = (C(Perm1) & Perm2) | (~C(Perm1) & ~C(Perm2))
The MIT License (MIT)
Contributed by `Max Kamenkov`_