67 lines
1.8 KiB
Python
67 lines
1.8 KiB
Python
# PermWrapper and PermLookupDict proxy the permissions system into objects that
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# the template system can understand.
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from django.contrib.auth.context_processors import PermWrapper as AuthPermWrapper
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class PermAnyLookupDict:
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def __init__(self, user, app_label):
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self.user = user
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self.app_label = app_label
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def __iter__(self):
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# I am large, I contain multitudes.
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raise TypeError("PermAnyLookupDict is not iterable.")
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def __getitem__(self, perm_name):
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return self.user.has_perm_any('%s.%s' % (self.app_label, perm_name))
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def __bool__(self):
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raise TypeError('PermAnyLookupDict has not boolean value')
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class PermAnyWrapper:
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def __init__(self, user):
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self.user = user
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def __getitem__(self, app_label):
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return PermAnyLookupDict(self.user, app_label)
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def __iter__(self):
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# I am large, I contain multitudes.
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raise TypeError("PermAnyWrapper is not iterable.")
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def __bool__(self):
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raise TypeError('PermAnyWrapper has not boolean value')
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def __nonzero__(self): # Python 2 compatibility
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return type(self).__bool__(self)
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class PermWrapper(AuthPermWrapper):
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def __getitem__(self, app_label):
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if app_label == 'any':
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return PermAnyWrapper(self.user)
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return super().__getitem__(app_label)
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def auth(request):
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"""
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Returns context variables required by apps that use Django's authentication
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system.
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If there is no 'user' attribute in the request, uses AnonymousUser (from
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django.contrib.auth).
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"""
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if hasattr(request, 'user'):
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user = request.user
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else:
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from django.contrib.auth.models import AnonymousUser
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user = AnonymousUser()
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return {
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'user': user,
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'perms': PermWrapper(user),
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}
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