symposion_app Files · pinaxcon/csrf_view.py

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James Polley

Don't require login to view qrcode

* The qrcode contains no information that isn't in the URL you used to
access the code, so information is being leaked
* Allowing unauthenicated access lets people see the image in their
mail client

Not ideal. Let's revert this later and think of something better next
year - perhaps spending some more time researching best practices on
images in email..

from django.conf import settings
from django.http import HttpResponseForbidden
from django.template import Context, RequestContext, loader
from django.utils.translation import ugettext as _
from django.utils.version import get_docs_version


def csrf_failure(request, reason=""):

    from django.middleware.csrf import REASON_BAD_TOKEN, REASON_NO_REFERER, REASON_NO_CSRF_COOKIE
    t = loader.get_template("403_csrf.html")
    c = Context({
        'title': _("Forbidden"),
        'main': _("CSRF verification failed. Request aborted."),
        'reason': reason,
        'bad_token': reason == REASON_BAD_TOKEN,
        'no_referer': reason == REASON_NO_REFERER,
        'no_referer1': _(
            "You are seeing this message because this HTTPS site requires a "
            "'Referer header' to be sent by your Web browser, but none was "
            "sent. This header is required for security reasons, to ensure "
            "that your browser is not being hijacked by third parties."),
        'no_referer2': _(
            "If you have configured your browser to disable 'Referer' headers, "
            "please re-enable them, at least for this site, or for HTTPS "
            "connections, or for 'same-origin' requests."),
        'no_cookie': reason == REASON_NO_CSRF_COOKIE,
        'no_cookie1': _(
            "You are seeing this message because this site requires a CSRF "
            "cookie when submitting forms. This cookie is required for "
            "security reasons, to ensure that your browser is not being "
            "hijacked by third parties."),
        'no_cookie2': _(
            "If you have configured your browser to disable cookies, please "
            "re-enable them, at least for this site, or for 'same-origin' "
            "requests."),
        'DEBUG': settings.DEBUG,
        'docs_version': get_docs_version(),
        'more': _("More information is available with DEBUG=True."),
    })
    c = RequestContext(request, c)
    return HttpResponseForbidden(t.render(c), content_type='text/html')