在django中激活配置文件之前验证用户

AUTHENTICATION_BACKENDS = [
    'myapp.backends.MyCustomBackend',
    'django.contrib.auth.backends.ModelBackend',
]

from django.contrib.auth.backends import ModelBackend

class MyCustomBackend(ModelBackend):
    def authenticate(self, request, username=None, password=None, **kwargs):
        user = super().authenticate(request, username=username, password=password, **kwargs)
        if user is not None:
            if not my_custom_validator(user):
                user = None
        return user

AUTHENTICATION_BACKENDS = [
    'myapp.backends.MyCustomBackend',
    'django.contrib.auth.backends.ModelBackend',
]

from django.contrib.auth.decorators import login_required
from django.utils.decorators import method_decorator
from django.views import View

@method_decorator(login_required, name='dispatch')
class MyView(View):
    def get(self, request):
        # 处理GET请求
        pass