utils.py 文件源码

def authenticate_by_token(callback_token):
    try:
        token = CallbackToken.objects.get(key=callback_token, is_active=True)

        # Returning a user designates a successful authentication.
        token.user = User.objects.get(pk=token.user.pk)
        token.is_active = False  # Mark this token as used.
        token.save()

        return token.user

    except CallbackToken.DoesNotExist:
        log.debug("drfpasswordless: Challenged with a callback token that doesn't exist.")
    except User.DoesNotExist:
        log.debug("drfpasswordless: Authenticated user somehow doesn't exist.")
    except PermissionDenied:
        log.debug("drfpasswordless: Permission denied while authenticating.")

    return None