django - “WSGIRequest”对象没有属性 'successful_authenticator'

我已经做了一个认证类，就像这样:

Token Authentication for RESTful API: should the token be periodically changed?
restapi/settings.py

REST_FRAMEWORK = {
    'DEFAULT_AUTHENTICATION_CLASSES': (
        'rest_framework.authentication.BasicAuthentication',
        'rest_framework.authentication.SessionAuthentication',
        # 'rest_framework.authentication.TokenAuthentication',
        'restapi.authentication.ExpiringTokenAuthentication',
    ),
    'PAGINATE_BY': 10
}

restapi/authentication.py

import datetime
from rest_framework.authentication import TokenAuthentication

class ExpiringTokenAuthentication(TokenAuthentication):
    def authenticate_credentials(self, key):
        try:
            token = self.model.objects.get(key=key)
        except self.model.DoesNotExist:
            raise exceptions.AuthenticationFailed('Invalid token')

        if not token.user.is_active:
            raise exceptions.AuthenticationFailed('User inactive or deleted')

        # This is required for the time comparison
        utc_now = datetime.utcnow()
        utc_now = utc_now.replace(tzinfo=pytz.utc)

        if token.created < utc_now - timedelta(hours=24):
            raise exceptions.AuthenticationFailed('Token has expired')

        return token.user, token

restapi/tests.py

def test_get_missions(self):
    """
    Tests that /missions/ returns with no error
    """
    response = self.client.get('/missions/', HTTP_AUTHORIZATION = self.auth)

在我的测试中，我有一个AttributeError: 'WSGIRequest' object has no attribute 'successful_authenticator'异常

为什么会出现此错误？如何解决？

最佳答案

问题出在线路上:

utc_now = datetime.utcnow()

这会导致AttributeError: 'WSGIRequest' object has no attribute 'successful_authenticator'。

自从我偶然发现这样一个令人误解的错误消息以来已经有一段时间了。

这是我解决的方法:
restapi/authentication.py

import datetime
from django.utils.timezone import utc
from rest_framework.authentication import TokenAuthentication
from rest_framework import exceptions

class ExpiringTokenAuthentication(TokenAuthentication):
    def authenticate_credentials(self, key):
        try:
            token = self.model.objects.get(key=key)
        except self.model.DoesNotExist:
            raise exceptions.AuthenticationFailed('Invalid token')

        if not token.user.is_active:
            raise exceptions.AuthenticationFailed('User inactive or deleted')

        utc_now = datetime.datetime.utcnow().replace(tzinfo=utc)

        if token.created < utc_now - datetime.timedelta(hours=24):
            raise exceptions.AuthenticationFailed('Token has expired')

        return (token.user, token)

关于django - “WSGIRequest”对象没有属性 'successful_authenticator'，我们在Stack Overflow上找到一个类似的问题：https://stackoverflow.com/questions/16736710/