Tornado-cookie

cookie

服务端在客户端的中写一个字符串,下一次客户端再访问时只要携带该字符串,就认为其是合法用户。

tornado中的cookie有两种,一种是未加密的,一种是加密的,并且可以配置生效域名、路径、过期时间。

文件目录

 

Python代码

import tornado.ioloop
import tornado.web
import time


class MainHandler(tornado.web.RequestHandler):
    def get(self):
        self.render('index.html', )


class ManagerHandler(tornado.web.RequestHandler):
    def get(self):
        cookie = self.get_cookie('auth')
        if cookie == '1':
            self.render('manager.html')
        else:
            self.redirect('/login')


class LoginHandler(tornado.web.RequestHandler):
    def get(self):
        self.render('login.html', status_text='')

    def post(self):
        username = self.get_argument('username', None)
        password = self.get_argument('password', None)
        checked = self.get_argument('auto', None)
        if username == 'abc' and password == '123':
            if checked:
                self.set_cookie('usn', username, expires_days=7)
                self.set_cookie('auth', expires_days=7)
            else:
                expire_time = time.time() + 60 * 30
                # domain:针对哪个域名生效
                # path:为cookie划分权限,在那一些目录下生效,默认是'/',全局生效
                self.set_cookie('usn', username, expires_days=expire_time)
                self.set_cookie('auth', '1', expires=expire_time, path='/')
            self.redirect('/manager')
        else:
            self.render('login.html', status_text='登陆失败')


class LogoutHandler(tornado.web.RequestHandler):
    def get(self):
        self.set_cookie('auth', '1', expires=time.time())
        self.set_cookie('usn', '', expires=time.time())
        self.redirect('/login')



settings = {
        "template_path": "views",  # 配置html文件路径
        "static_path": "static",  # 配置静态文件路径
    }

# 路由映射
application = tornado.web.Application([
    (r"/index", MainHandler),
    (r"/login", LoginHandler),
    (r"/manager", ManagerHandler),
    (r"/logout", LogoutHandler)


], **settings)

# 启动
if __name__ == "__main__":
    application.listen(8888)
    tornado.ioloop.IOLoop.instance().start()


# session更灵活些
# set_secure_cookie有了加密,更安全
View Code

HTML页面

index.html

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
    <h1>首页</h1>
</body>
</html>
View Code

login.html

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
    <form action="/login" method="post">
        <input type="text" name="username"/>
        <input type="text" name="password"/>
        <input type="checkbox" name="auto" value="1" >7天免登陆
        <input type="submit" value="登陆"/>
        <span style="color:red;">{{ status_text }}</span>
    </form>
</body>
</html>
View Code

manager.html

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
    <h1 style="color:red;">隐私页面</h1>
    <h1>您的密码是123456</h1>
    <h2>您的卡内余额是10000元</h2>
    <a href="/logout">退出</a>
</body>
</html>
View Code

这一部分没有复杂的部分,主要涉及了tornado内cookie相关方法的应用以及设计跳转页面间的关系。

原文地址:https://www.cnblogs.com/yifeixu/p/7965836.html