framework —— auth认证+权限+限流==》联合使用

1.业务需求

　　a. 对匿名用户进行限制，每个用户1分钟允许访问10次
　　b. 对匿名用户进行限制，每个用户1分钟允许访问5次，登录的用户1分钟访问10次，vip用户1分钟允许访问20次

2.目录结构

3.urls.py

4.app04/views.py:

from django.shortcuts import render
from rest_framework.response import Response
from rest_framework.views import APIView
from rest_framework.throttling import BaseThrottle,SimpleRateThrottle
from rest_framework import exceptions
from rest_framework.authentication import BaseAuthentication
from app02 import models
# Create your views here.

#用户认证
class MyAuthentication(BaseAuthentication):
    """
    All authentication classes should extend BaseAuthentication.
    """

    def authenticate(self, request):
        """
        Authenticate the request and return a two-tuple of (user, token).
        """
        token = request.query_params.get('token')
        obj = models.Userinfo.objects.filter(token=token).first()
        if obj:
            return (obj.username,obj)
        return None

    def authenticate_header(self, request):
        """
        Return a string to be used as the value of the `WWW-Authenticate`
        header in a `401 Unauthenticated` response, or `None` if the
        authentication scheme should return `403 Permission Denied` responses.
        """
        pass

#用户权限控制
class MyPermission(object):
    message = "无权访问"
    def has_permission(self,request,view):
        if request.user:
            # print(request.user)
            return True
        return False

#管理员权限控制
class AdminPermission(object):
    message = "无权访问"
    def has_permission(self,request,view):
        if request.user == 'zxc':
            return True
        return False


#匿名用户
class AnonThrottle(SimpleRateThrottle):
    scope = 'zxc_anon'

    def get_cache_key(self, request, view):
        #返回None，就不限制
        #登录用户不限制
        if request.user:
            return None
        #匿名用户就需要限制了
        return self.get_ident(request)

#登录用户
class UserThrottle(SimpleRateThrottle):
    scope = 'zxc_user'

    def get_cache_key(self, request, view):
        #登录用户
        if request.user:
            return request.user
        return None


#展示列表，无需登录就可以访问
class IndexView(APIView):
    authentication_classes = [MyAuthentication,]
    permission_classes = []
    throttle_classes = [AnonThrottle,UserThrottle]
    def get(self,request,*args,**kwargs):
        self.dispatch
        return Response('访问首页')

#展示列表，必须登录之后才可以访问
class IndexView(APIView):
    authentication_classes = [MyAuthentication,]
    permission_classes = [MyPermission,]
    throttle_classes = [AnonThrottle,UserThrottle]
    def get(self,request,*args,**kwargs):
        self.dispatch
        return Response('访问首页')