django1/django/contrib/flatpages/views.py

75 lines
2.9 KiB
Python

from django.conf import settings
from django.contrib.flatpages.models import FlatPage
from django.contrib.sites.models import get_current_site
from django.core.xheaders import populate_xheaders
from django.http import Http404, HttpResponse, HttpResponsePermanentRedirect
from django.shortcuts import get_object_or_404
from django.template import loader, RequestContext
from django.utils.safestring import mark_safe
from django.views.decorators.csrf import csrf_protect
DEFAULT_TEMPLATE = 'flatpages/default.html'
# This view is called from FlatpageFallbackMiddleware.process_response
# when a 404 is raised, which often means CsrfViewMiddleware.process_view
# has not been called even if CsrfViewMiddleware is installed. So we need
# to use @csrf_protect, in case the template needs {% csrf_token %}.
# However, we can't just wrap this view; if no matching flatpage exists,
# or a redirect is required for authentication, the 404 needs to be returned
# without any CSRF checks. Therefore, we only
# CSRF protect the internal implementation.
def flatpage(request, url):
"""
Public interface to the flat page view.
Models: `flatpages.flatpages`
Templates: Uses the template defined by the ``template_name`` field,
or :template:`flatpages/default.html` if template_name is not defined.
Context:
flatpage
`flatpages.flatpages` object
"""
if not url.startswith('/'):
url = '/' + url
site_id = get_current_site(request).id
try:
f = get_object_or_404(FlatPage,
url__exact=url, sites__id__exact=site_id)
except Http404:
if not url.endswith('/') and settings.APPEND_SLASH:
url += '/'
f = get_object_or_404(FlatPage,
url__exact=url, sites__id__exact=site_id)
return HttpResponsePermanentRedirect('%s/' % request.path)
else:
raise
return render_flatpage(request, f)
@csrf_protect
def render_flatpage(request, f):
"""
Internal interface to the flat page view.
"""
# If registration is required for accessing this page, and the user isn't
# logged in, redirect to the login page.
if f.registration_required and not request.user.is_authenticated():
from django.contrib.auth.views import redirect_to_login
return redirect_to_login(request.path)
if f.template_name:
t = loader.select_template((f.template_name, DEFAULT_TEMPLATE))
else:
t = loader.get_template(DEFAULT_TEMPLATE)
# To avoid having to always use the "|safe" filter in flatpage templates,
# mark the title and content as already safe (since they are raw HTML
# content in the first place).
f.title = mark_safe(f.title)
f.content = mark_safe(f.content)
c = RequestContext(request, {
'flatpage': f,
})
response = HttpResponse(t.render(c))
populate_xheaders(request, response, FlatPage, f.id)
return response