django-cookies-samesite

Django 2.1.x introduces support of SameSite flag for session and csrf cookie.

Unfortunately, this functionality will not be ported to older versions of Django e.g. 1.11.x.

This repository contains a middleware which automatically sets SameSite attribute for session and csrf cookies in legacy versions of Django.

Quickstart

Install django-cookies-samesite:

pip install django-cookies-samesite

Add the middleware to the top of MIDDLEWARE_CLASSES:

MIDDLEWARE_CLASSES = (
    'django_cookies_samesite.middleware.CookiesSameSite',
    ...
)

Set your preferred SameSite policy in settings.py:

SESSION_COOKIE_SAMESITE = 'Lax'

This can be 'Lax', 'None', 'Strict', or None to disable the flag.

Also, you can set this flag in your custom cookies:

SESSION_COOKIE_SAMESITE_KEYS = {'my-custom-cookies'}

After that you should be able to see the SameSite flag set for session and csrf cookies.

You can set the SameSite flag on all cookies (even on those coming from third-party Django apps):

SESSION_COOKIE_SAMESITE_FORCE_ALL = True

Does the code actually work?

source <YOURVIRTUALENV>/bin/activate
(myenv) $ pip install tox
(myenv) $ tox

Tools used in rendering this package: