68 lines
1.9 KiB
Python
68 lines
1.9 KiB
Python
# PermWrapper and PermLookupDict proxy the permissions system into objects that
|
|
# the template system can understand.
|
|
|
|
|
|
class PermLookupDict:
|
|
def __init__(self, user, app_label):
|
|
self.user, self.app_label = user, app_label
|
|
|
|
def __repr__(self):
|
|
return str(self.user.get_all_permissions())
|
|
|
|
def __getitem__(self, perm_name):
|
|
return self.user.has_perm("%s.%s" % (self.app_label, perm_name))
|
|
|
|
def __iter__(self):
|
|
# To fix 'item in perms.someapp' and __getitem__ interaction we need to
|
|
# define __iter__. See #18979 for details.
|
|
raise TypeError("PermLookupDict is not iterable.")
|
|
|
|
def __bool__(self):
|
|
return self.user.has_module_perms(self.app_label)
|
|
|
|
|
|
class PermWrapper:
|
|
def __init__(self, user):
|
|
self.user = user
|
|
|
|
def __repr__(self):
|
|
return f"{self.__class__.__qualname__}({self.user!r})"
|
|
|
|
def __getitem__(self, app_label):
|
|
return PermLookupDict(self.user, app_label)
|
|
|
|
def __iter__(self):
|
|
# I am large, I contain multitudes.
|
|
raise TypeError("PermWrapper is not iterable.")
|
|
|
|
def __contains__(self, perm_name):
|
|
"""
|
|
Lookup by "someapp" or "someapp.someperm" in perms.
|
|
"""
|
|
if "." not in perm_name:
|
|
# The name refers to module.
|
|
return bool(self[perm_name])
|
|
app_label, perm_name = perm_name.split(".", 1)
|
|
return self[app_label][perm_name]
|
|
|
|
|
|
def auth(request):
|
|
"""
|
|
Return context variables required by apps that use Django's authentication
|
|
system.
|
|
|
|
If there is no 'user' attribute in the request, use AnonymousUser (from
|
|
django.contrib.auth).
|
|
"""
|
|
if hasattr(request, "user"):
|
|
user = request.user
|
|
else:
|
|
from django.contrib.auth.models import AnonymousUser
|
|
|
|
user = AnonymousUser()
|
|
|
|
return {
|
|
"user": user,
|
|
"perms": PermWrapper(user),
|
|
}
|