Custom failure handler?

We’d like to customize the failure page. Would you be open to a pull request that allows you to optionally set a path to view function where both the view function can customized in additional to which template is used? If not defined, the current django-adfs-auth failure would be used.

Something similar to how DjangoSAML2 does it: https://github.com/knaperek/djangosaml2#custom-error-handler

AUTH_ADFS = {
    "FAILURE_RESPONSE_VIEW_FUNCTION": ''python.path.to.your.template_failure"
}

This should be a view which takes a request, optional exception which occurred and status code, and returns a response to serve the user. The default implementation looks like this:

def template_failure(request, exception=None, **kwargs):
    """ Renders a simple template with an error message. """
    return render(request, 'django_adfs_auth/login_error.html', {'exception': exception}, status=kwargs.get('status', 403))

[JonasKs]

I’d be happy to review. 👍

[peterfarrell]

Closing this issue since it was a question on if a PR would be accepted.