How do I raise a Response Forbidden in django

Question

I'd like to do the following:

raise HttpResponseForbidden()

But I get the error:

exceptions must be old-style classes or derived from BaseException, not HttpResponseForbidden

How should I do this?

score 446 · Answer 1 · edited Jul 03 '19 at 14:22

446

if you want to raise an exception you can use:

from django.core.exceptions import PermissionDenied

def your_view(...):
    raise PermissionDenied()

It is documented here :

https://docs.djangoproject.com/en/stable/ref/views/#the-403-http-forbidden-view

As opposed to returing HttpResponseForbidden, raising PermissionDenied causes the error to be rendered using the 403.html template, or you can use middleware to show a custom "Forbidden" view.

edited Jul 03 '19 at 14:22

andyhasit

12,671
6
46
50

answered Dec 02 '11 at 23:32

Chris

11,972
5
18
22

You can still provide middleware with a process_exception method and render your view from there. – deterb May 08 '14 at 19:32
2

Can we add a custom message in PermissionDenied? – A.J. Aug 19 '14 at 05:59
2

Jack, yes you can -- do something like: raise PermissionDenied("No logged in user") – Mark Chackerian Oct 08 '14 at 13:43
2

Not sure if it matters, but the docs say `throw PermissionDenied` not as a function call, without the `()` at the end. – Fydo Nov 14 '14 at 15:05
2

What's the advantage of using this over HttpResponseForbidden? – Flimm Jan 06 '16 at 16:41
3

@Flimm: This automatically triggers 403 at middleware level, allowing you to show your custom "Forbidden" view. – Damaged Organic Mar 08 '16 at 15:03
1

@MarkChackerian any idea of `PermissionDenied` in Django 1.6. I created a custom 403.html . How to retrieve the custom message in html ? . `raise PermissionDenied("custom message")` dont show my custom message – Manuj Rastogi Jan 06 '17 at 12:07
Using this in an admin view and still getting 500 instead of 403. Any idea what I could be doing wrong? – Ariel Jan 30 '19 at 11:00

score 212 · Accepted Answer · edited Apr 15 '15 at 19:57

212

Return it from the view as you would any other response.

from django.http import HttpResponseForbidden

return HttpResponseForbidden()

edited Apr 15 '15 at 19:57

Maxime Lorant

31,821
17
84
96

answered Jul 08 '11 at 01:20

Ignacio Vazquez-Abrams

740,318
145
1,296
1,325

40

Why does there exists an exception class `Http404` but not `Http403`? Why the inconsistency? – Flimm Jan 28 '16 at 13:34
@Flimm http://stackoverflow.com/questions/3297048/403-forbidden-vs-401-unauthorized-http-responses I'm not sure about Django, but Django REST Framework has: from rest_framework import status status.HTTP_403_FORBIDDEN 403 – David Watson Mar 04 '16 at 18:35
24

Actually using `raise PermissionDenied` has the advantage of letting you show your custom 403 view – gdvalderrama Jul 08 '16 at 09:01

Mario Orlandi · Answer 3 · 2018-03-10T16:45:17.313

You can optionally supply a custom template named "403.html" to control the rendering of 403 HTTP errors.

As correctly pointed out by @dave-halter, The 403 template can only be used if you raise PermissionDenied

Below is a sample view used to test custom templates "403.html", "404.html" and "500.html"; please make sure to set DEBUG=False in project's settings or the framework will show a traceback instead for 404 and 500.

from django.http import HttpResponse
from django.http import Http404
from django.core.exceptions import PermissionDenied


def index(request):

    html = """
<!DOCTYPE html>
<html lang="en">
  <body>
    <ul>
        <li><a href="/">home</a></li>
        <li><a href="?action=raise403">Raise Error 403</a></li>
        <li><a href="?action=raise404">Raise Error 404</a></li>
        <li><a href="?action=raise500">Raise Error 500</a></li>
    </ul>
  </body>
</html>
"""

    action = request.GET.get('action', '')
    if action == 'raise403':
        raise PermissionDenied
    elif action == 'raise404':
        raise Http404
    elif action == 'raise500':
        raise Exception('Server error')

    return HttpResponse(html)

This does not work. The 403 template can only be used if you raise PermissionDenied. — Dave Halter, Mar 09 '18 at 18:38
Thank you @dave-halter, you'r right. I updated my comment to correct it. — Mario Orlandi, Mar 10 '18 at 16:49

score 4 · Answer 4 · answered Dec 05 '18 at 17:29

4

Try this Way , sending message with Error

from django.core.exceptions import PermissionDenied
raise PermissionDenied("You do not have permission to Enter Clients in Other Company, Be Careful")

answered Dec 05 '18 at 17:29

Saad Mirza

1,014
12
21

How do I raise a Response Forbidden in django

4 Answers4

Linked