33 lines
1.2 KiB
Python
33 lines
1.2 KiB
Python
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"""
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这是登录鉴权的中间件程序，其实就是一个类
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process_request是进入中间件 process_response是离开中间件程序
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用于判断是否登录系统，request.session.get('info')，session变量在views/account.py中定义
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"""
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# 导入模块
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from django.utils.deprecation import MiddlewareMixin
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from django.shortcuts import render, redirect
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class AuthMiddleWare(MiddlewareMixin):
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""" 中间件 """
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def process_request(self, request):
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# print('M1.process_request，进来了')
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# (重要）排除不需要进行登录验证的页面，例如登录界面，不然回造成死循环
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# request.path_info 当前页面的URL，例如：'/login/'
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if request.path_info in ['/login/', '/image/code/']:
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return # 返回None
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# 判断是否已登录，返回None则继续向下一个中间件执行，最终到达视图函数
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info = request.session.get('info')
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# print(info)
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if info:
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return # 返回None
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# 没有登录，则返回登录界面
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return redirect('/login/')
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def process_response(self, request, response):
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# print('M1.process_request,走了')
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return response
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