Question

我有以下代码：

问题是当我尝试访问用户登录时/我收到错误： “CSRF失败：未设置CSRF cookie。”

我该怎么办？

我正在使用django rest框架。

urls.py:

url(r'^user-login/$', 
    csrf_exempt(LoginView.as_view()),
    name='user-login'),

views.py:

class LoginView(APIView):
"""
List all snippets, or create a new snippet.
"""
def get(self, request, format=None):
    startups = Startup.objects.all()
    serializer = StartupSerializer(startups, many=True)
    return Response(serializer.data)

def post(self, request, format=None):
    profile = request.POST

    if ('user_name' not in profile or 'email_address' not in profile or 'oauth_secret' not in profile):
        return Response(
            {'error': 'No data'},
            status=status.HTTP_400_BAD_REQUEST)

    username = 'l' + profile['user_name']
    email_address = profile['email_address']
    oauth_secret = profile['oauth_secret']
    password = oauth_secret

Answer 1

我假设您使用django rest框架SessionBackend。这个后端执行implicit CSRF check

你可以通过以下方式避免这种情况：

from rest_framework.authentication import SessionAuthentication

class UnsafeSessionAuthentication(SessionAuthentication):

    def authenticate(self, request):
        http_request = request._request
        user = getattr(http_request, 'user', None)

        if not user or not user.is_active:
           return None

        return (user, None)

并在视图中将其设置为authentication_classes

class UnsafeLogin(APIView):
    permission_classes = (AllowAny,) #maybe not needed in your case
    authentication_classes = (UnsafeSessionAuthentication,)

    def post(self, request, *args, **kwargs):

        username = request.DATA.get("u");
        password = request.DATA.get("p");

        user = authenticate(username=username, password=password)
        if user is not None:
           login(request, user)

        return redirect("/")

Answer 2

实际上，在SessionAuthentication中禁用csrf检查的更好方法是：

from rest_framework.authentication import SessionAuthentication as OriginalSessionAuthentication

class SessionAuthentication(OriginalSessionAuthentication):
    def enforce_csrf(self, request):
        return

Answer 3

解决此问题的最简单方法：

为此，drf see drf auth

中有两种身份验证方式

BasicAuthentication

SessionAuthentication（默认）

SessionAuthentication有强制csrf检查，但BasicAuthentication没有。所以我的方法是在我的视图中使用BasicAuthentication而不是SessionAuthentication。

from rest_framework.authentication import BasicAuthentication

class UserLogin(generics.CreateAPIView):
    permission_classes = (permissions.AllowAny,)
    serializer_class = UserSerializer
    authentication_classes = (BasicAuthentication,)

    def post(self, request, *args, **kwargs):
        return Response({})

Answer 4

最好只执行一下execute_csrf检查：

from rest_framework.authentication import SessionAuthentication

class UnsafeSessionAuthentication(SessionAuthentication):

    def enforce_csrf(self, *args, **kwargs):
        '''
        Bypass the CSRF checks altogether
        '''
        pass

否则，如果上游authenticate（）方法发生更改，您将来可能会遇到问题。另外，仅使检查不执行任何操作是非常简单的:-)

CSRF豁免失败 - APIView csrf django休息框架

4 个答案: