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re2o/api/authentication.py
2018-06-20 11:38:58 +00:00

25 lines
979 B
Python

import datetime
from django.conf import settings
from django.utils.translation import ugettext_lazy as _
from rest_framework.authentication import TokenAuthentication
from rest_framework import exceptions
class ExpiringTokenAuthentication(TokenAuthentication):
def authenticate_credentials(self, key):
model = self.get_model()
try:
token = model.objects.select_related('user').get(key=key)
except model.DoesNotExist:
raise exceptions.AuthenticationFailed(_('Invalid token.'))
if not token.user.is_active:
raise exceptions.AuthenticationFailed(_('User inactive or deleted.'))
token_duration = datetime.timedelta(
seconds=settings.API_TOKEN_DURATION
)
utc_now = datetime.datetime.now(datetime.timezone.utc)
if token.created < utc_now - token_duration:
raise exceptions.AuthenticationFailed(_('Token has expired'))
return (token.user, token)