python/lib/django_1_4/django/middleware/doc.py

   1 from django.conf import settings
   2 from django import http
   3
   4 class XViewMiddleware(object):
   5     """
   6     Adds an X-View header to internal HEAD requests -- used by the documentation system.
   7     """
   8     def process_view(self, request, view_func, view_args, view_kwargs):
   9         """
  10         If the request method is HEAD and either the IP is internal or the
  11         user is a logged-in staff member, quickly return with an x-header
  12         indicating the view function.  This is used by the documentation module
  13         to lookup the view function for an arbitrary page.
  14         """
  15         assert hasattr(request, 'user'), (
  16             "The XView middleware requires authentication middleware to be "
  17             "installed. Edit your MIDDLEWARE_CLASSES setting to insert "
  18             "'django.contrib.auth.middleware.AuthenticationMiddleware'.")
  19         if request.method == 'HEAD' and (request.META.get('REMOTE_ADDR') in settings.INTERNAL_IPS or
  20                                          (request.user.is_active and request.user.is_staff)):
  21             response = http.HttpResponse()
  22             response['X-View'] = "%s.%s" % (view_func.__module__, view_func.__name__)
  23             return response