Django-中间件实现1分钟内只允许三次访问

class Throttle(MiddlewareMixin):

    def process_request(self, request):
        # 1. 拿到用户请求的IP
        # print(request.META)
        ip = request.META.get("REMOTE_ADDR")
        # 2. 当前请求的时间
        now = time.time()
        # 3. 记录访问的历史
        if ip not in VISIT_RECORD:
            VISIT_RECORD[ip] = []

        history = VISIT_RECORD[ip]
        # [11:07:20, 10:07:11, 10:07:06, 10:07:01]
        while history and now - history[-1] > 10:
            history.pop()
        # 判断用户在一分钟的时间间隔内是否访问超过3次
        if len(history) >= 3:
            return HttpResponse("滚...")
        history.insert(0, now)