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from django.utils import timezone
from users.models import Identity, User
class IdentityMiddleware:
"""
Adds a request.identity object which is either the current session's
identity, or None if they have not picked one yet/it's invalid.
"""
def __init__(self, get_response):
self.get_response = get_response
def __call__(self, request):
# The API middleware might have set identity already
if not hasattr(request, "identity"):
# See if we have one in the session
identity_id = request.session.get("identity_id")
if not identity_id:
request.identity = None
else:
# Pull it out of the DB and assign it
try:
request.identity = Identity.objects.get(id=identity_id)
User.objects.filter(pk=request.user.pk).update(
last_seen=timezone.now()
)
except Identity.DoesNotExist:
request.identity = None
response = self.get_response(request)
return response
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