Sith/core/views/__init__.py

89 lines
3.1 KiB
Python

from django.shortcuts import render
from django.http import HttpResponseForbidden
from django.core.exceptions import PermissionDenied
from django.views.generic.base import View
from core.models import Group
def forbidden(request):
return render(request, "core/403.html")
def not_found(request):
return render(request, "core/404.html")
# TODO: see models.py's TODO!
class CanEditPropMixin(View):
"""
This view is made to protect any child view that would be showing some properties of an object that are restricted
to only the owner group of the given object.
In other word, you can make a view with this view as parent, and it would be retricted to the users that are in the
object's owner_group
"""
def dispatch(self, request, *arg, **kwargs):
res = super(CanEditPropMixin, self).dispatch(request, *arg, **kwargs)
obj = self.object
user = self.request.user
if obj is None:
return res
# TODO: add permission scale validation, to allow some groups other than superuser to manipulate
# all objects of a class if they are in the right group
if user.is_superuser or user.groups.filter(name=obj.owner_group.name).exists():
return res
raise PermissionDenied
return HttpResponseForbidden("403, Forbidden")
class CanEditMixin(CanEditPropMixin):
"""
This view makes exactly the same this as its direct parent, but checks the group on the edit_group field of the
object
"""
def dispatch(self, request, *arg, **kwargs):
# TODO: WIP: fix permissions with exceptions!
try:
res = super(CanEditMixin, self).dispatch(request, *arg, **kwargs)
except PermissionDenied:
pass
except:
return res
obj = self.object
user = self.request.user
if obj is None:
return res
for g in obj.edit_group.all():
if user.groups.filter(name=g.name).exists():
return super(CanEditPropMixin, self).dispatch(request, *arg, **kwargs)
if isinstance(obj, User) and obj == user:
return super(CanEditPropMixin, self).dispatch(request, *arg, **kwargs)
raise PermissionDenied
return HttpResponseForbidden("403, Forbidden")
class CanViewMixin(CanEditMixin):
"""
This view still makes exactly the same this as its direct parent, but checks the group on the view_group field of
the object
"""
def dispatch(self, request, *arg, **kwargs):
try:
res = super(CanViewMixin, self).dispatch(request, *arg, **kwargs)
except PermissionDenied:
pass
except:
return res
obj = self.object
user = self.request.user
if obj is None:
return res
for g in obj.view_group.all():
if user.groups.filter(name=g.name).exists():
return super(CanEditPropMixin, self).dispatch(request, *arg, **kwargs)
raise PermissionDenied
return HttpResponseForbidden("403, Forbidden")
from .user import *
from .page import *
from .site import *
from .group import *