如果没有活动，则会话终止时烧瓶退出，并重定向登录页面 [英] Flask logout if sessions expires if no activity and redirect for login page

问题描述

我对Flask很陌生，并尝试使用Flask更新网站，在该网站上用户具有帐户并能够登录.如果没有活动超过10分钟，我想使用户会话过期并注销，然后将用户重定向到登录页面.

I'm very new to flask and trying updating a website with flask where users have accounts and are able to login. I want to make user session expire and logout if there is no activity for more than 10 mins and redirect the user for login page.

我想在@ app.before_request中更新它，下面是我的代码.我如何更新它，建议.检查登录时间，然后检查是否没有活动，然后注销.

I want to update it in @app.before_request and below is my code . How do i update it pls suggest. Check for the login time and check if there is been no activity then logout.

@app.before_request
def look_for_user(user=None):
        g.usr = {}
    g.api = False
    if user:
        g.usr = user
    if 'user_id' in session:
        g.usr = get_user((session['user_id'])) //from db
        if not g.usr:
            g.usr = {}
    if not g.usr:
        if request.url_rule:
            if request.url_rule.rule not in app.config['LOGIN_NOT_REQUIRED']:
                session['postlogin_landing_page'] = request.path
                if g.api:
                    return jsonify(error=True, error_message='Invalid Login/Token')
                else:
                    return redirect(app.config['LOGIN_URL'])
    elif 'login_page' in session and request.url_rule:
        if request.url_rule.rule not in app.config:
            landing_page = session.pop('login_page')
            return redirect(landing_page)

推荐答案

您可以使用 permanent_session_lifetime 和 session.modified 标志(如

You can use permanent_session_lifetime and the session.modified flag as described in this question.

请注意，默认情况下，会话不是永久会话，需要使用 session.permanent = True 激活，如

Note that sessions are not permanent by default, and need to be activated with session.permanent = True, as described in this answer.

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