Python编程：Django中间件实现登陆验证

MIDDLEWARE = [
    'mymiddlewares.AccessAuthMiddleWare',
]
# 放行url，不进行登录验证
EXCLUDE_URL = [
    "/login"
]
# 用户名密码
USERS = [
    ("username", "password")
]

import re
from django.shortcuts import redirect
from django.utils.deprecation import MiddlewareMixin
from settings import EXCLUDE_URL, USERS
exclued_path = [re.compile(item) for item in EXCLUDE_URL]
class AccessAuthMiddleWare(MiddlewareMixin):
    """
    访问控制
    """
    def process_request(self, request):
        # 放行
        url_path = request.path
        for each in exclued_path:
            if re.match(each, url_path):
                return None
        # 验证
        user = request.COOKIES.get('user')
        password = request.COOKIES.get('password')
        if (user, password) in USERS:
            return None
        else:
            return redirect('/login')