Files
edx-platform/common/djangoapps/third_party_auth/middleware.py

26 lines
1.0 KiB
Python

"""Middleware classes for third_party_auth."""
from social.apps.django_app.middleware import SocialAuthExceptionMiddleware
from . import pipeline
class ExceptionMiddleware(SocialAuthExceptionMiddleware):
"""Custom middleware that handles conditional redirection."""
def get_redirect_uri(self, request, exception):
# Fall back to django settings's SOCIAL_AUTH_LOGIN_ERROR_URL.
redirect_uri = super(ExceptionMiddleware, self).get_redirect_uri(request, exception)
# Safe because it's already been validated by
# pipeline.parse_query_params. If that pipeline step ever moves later
# in the pipeline stack, we'd need to validate this value because it
# would be an injection point for attacker data.
auth_entry = request.session.get(pipeline.AUTH_ENTRY_KEY)
# Check if we have an auth entry key we can use instead
if auth_entry and auth_entry in pipeline.AUTH_DISPATCH_URLS:
redirect_uri = pipeline.AUTH_DISPATCH_URLS[auth_entry]
return redirect_uri