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Viewing changes to django/core/context_processors.py

  • Committer: Bazaar Package Importer
  • Author(s): Chris Lamb
  • Date: 2010-05-21 07:52:55 UTC
  • mfrom: (1.3.6 upstream)
  • mto: This revision was merged to the branch mainline in revision 28.
  • Revision ID: james.westby@ubuntu.com-20100521075255-ii78v1dyfmyu3uzx
Tags: upstream-1.2
Import upstream version 1.2

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django/core/context_processors.py
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"""
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from django.conf import settings
 
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from django.middleware.csrf import get_token
 
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from django.utils.functional import lazy
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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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        'messages': user.get_and_delete_messages(),
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        'perms': PermWrapper(user),
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    }
 
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    DEPRECATED. This context processor is the old location, and has been moved
 
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    to `django.contrib.auth.context_processors`.
 
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    This function still exists for backwards-compatibility; it will be removed
 
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    in Django 1.4.
 
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    """
 
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    import warnings
 
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    warnings.warn(
 
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        "The context processor at `django.core.context_processors.auth` is " \
 
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        "deprecated; use the path `django.contrib.auth.context_processors.auth` " \
 
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        "instead.",
 
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        PendingDeprecationWarning
 
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    )
 
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    from django.contrib.auth.context_processors import auth as auth_context_processor
 
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    return auth_context_processor(request)
 
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def csrf(request):
 
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    """
 
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    Context processor that provides a CSRF token, or the string 'NOTPROVIDED' if
 
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    it has not been provided by either a view decorator or the middleware
 
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    """
 
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    def _get_val():
 
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        token = get_token(request)
 
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        if token is None:
 
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            # In order to be able to provide debugging info in the
 
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            # case of misconfiguration, we use a sentinel value
 
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            # instead of returning an empty dict.
 
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            return 'NOTPROVIDED'
 
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        else:
 
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            return token
 
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    _get_val = lazy(_get_val, str)
 
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    return {'csrf_token': _get_val() }
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def debug(request):
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    "Returns context variables helpful for debugging."
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    def __getitem__(self, module_name):
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        return PermLookupDict(self.user, module_name)
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    def __iter__(self):
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        # I am large, I contain multitudes.
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        raise TypeError("PermWrapper is not iterable.")