在python中验证restframework用户

REST_FRAMEWORK = {
    'DEFAULT_AUTHENTICATION_CLASSES': [
        'rest_framework.authentication.TokenAuthentication',
    ],
    'DEFAULT_PERMISSION_CLASSES': [
        'rest_framework.permissions.IsAuthenticated',
    ],
}

from rest_framework.authentication import BaseAuthentication
from django.contrib.auth import get_user_model
from django.contrib.auth.hashers import check_password

class CustomAuthentication(BaseAuthentication):
    def authenticate(self, request):
        username = request.data.get('username')
        password = request.data.get('password')

        User = get_user_model()
        try:
            user = User.objects.get(username=username)
            if check_password(password, user.password):
                return (user, None)
        except User.DoesNotExist:
            return None

from django.urls import path
from rest_framework.decorators import authentication_classes, permission_classes
from rest_framework.response import Response
from rest_framework.views import APIView

@authentication_classes([CustomAuthentication])
@permission_classes([])
class UserValidationView(APIView):
    def post(self, request):
        user = request.user
        # 进行用户验证后的逻辑处理
        return Response({'message': 'User validated successfully.'})

urlpatterns = [
    path('validate/', UserValidationView.as_view()),
]