Failure of Django CSRF Token Authentication: ELB -> Apache2 -> uwsgi

Django Linux
2016-09-16 12:24 (8 years ago) ytyng

Originally, the configuration was AWS ELB -> Apache2 -> mod_wsgi, but after changing the Django server to use uWSGI, the configuration became AWS ELB -> Apache2 -> uWSGI. After this change, I started experiencing issues with Django's CSRF authentication, such as when submitting a login form. When I checked with DEBUG = True, I saw the following message: Access Forbidden (403) The request was aborted due to failure in CSRF verification. Help Reason given for failure: Referer checking failed - https://example.com.com/some-path/ does not match any trusted origins. In general, this can occur when there is a genuine Cross-Site Request Forgery, or when Django's CSRF mechanism has not been used correctly. For POST forms, you need to ensure: Your browser is accepting cookies. The view function passes a request to the template's render method. In the template, there is a {% csrf_token %} template tag inside each POST form that targets an internal URL. If you are not using CsrfViewMiddleware, then you must use csrf_protect on any views that use the csrf_token template tag, as well as those that accept the POST data. You're seeing the help section of this page because you have DEBUG = True in your Django settings file. Change that to False, and only the initial error message will be displayed. You can customize this page using the CSRF_FAILURE_VIEW setting. The ELB receives HTTPS, sends requests to Apache on port 80, and uWSGI is listening for HTTP protocol (not uWSGI protocol). The Apache configuration is as follows: ProxyPass / http://127.0.0.1:8081/ ProxyPassReverse / http://127.0.0.1:8081/ Alias /static/ /var/django/xxxxx/staticfiles/ ProxyPass /static/ ! Something like this. Upon searching the Django code, I found in csrf.py: REASON_BAD_REFERER = "Referer checking failed - %s does not match any trusted origins." It appears that adding the domain to CSRF_TRUSTED_ORIGINS should work. CSRF_TRUSTED_ORIGINS = [".example.com"] This should do the trick.

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