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from django.contrib.redirects.models import Redirect
from django import http
from django.conf import settings
class RedirectFallbackMiddleware(object):
def process_response(self, request, response):
if response.status_code != 404:
return response # No need to check for a redirect for non-404 responses.
path = request.get_full_path()
try:
r = Redirect.objects.get(site__id__exact=settings.SITE_ID, old_path=path)
except Redirect.DoesNotExist:
r = None
if r is None and settings.APPEND_SLASH:
# Try removing the trailing slash.
try:
r = Redirect.objects.get(site__id__exact=settings.SITE_ID,
old_path=path[:path.rfind('/')]+path[path.rfind('/')+1:])
except Redirect.DoesNotExist:
pass
if r is not None:
if r.new_path == '':
return http.HttpResponseGone()
return http.HttpResponsePermanentRedirect(r.new_path)
# No redirect was found. Return the response.
return response
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