Beaker as session middleware

I'm writing an app using bottle.py and beaker.middleware.SessionMiddleware:

How can I modify the session.timeout and session.cookie_expires values so I can implement a login system that logs the user in for 30 days?

I already implemented the standard login system so everything works until the browser closes, but I'd like to modify those values if the user checks the Remember me checkbox.

I thought of two variants if the user checks the Remember me checkbox:

Set session.cookie_expires and session.timeout to 30 days, but it seems that I can't modify these values at run-time because the cookie I recieve expires at the end of the browser session, ignoring my runtime modifications.
Set session.timeout to 30 days and overwrite the cookie named beaker.session.id writing the same session id but different expiry date. But the run-time problem from point 1. remains and it seems that I can't access the session's id that I just created with beaker, so I don't know what to store in the cookie.

How can I implement this?

Solution

The only solution I come up with is to implement my own little backend and setting cookies myself, without beaker.

For posterity's sake, the code is here: https://github.com/paulbarbu/bottle-upload/blob/master/index.py Methods: login_bl, upload_view(db), is_logged_in, and logout(). Please note this is some VERY old code and NOT production ready, use at your own risk, some code snippets from the above link follow:

@post('/login')
def login_bl(db):
import hashlib

nick = request.forms.nick.lower()
password = hashlib.sha1(request.forms.password).hexdigest()

message = {}
error = None

uid  = get_user_id(db, nick, password)

if uid:
    sess = request.environ.get('beaker.session')
    sess['uid'] = uid
    # .... do other stuff for the logged in user

Logout:

@get('/logout')
def logout():
if not is_logged_in():
    redirect('/login')
else:
    sess = request.environ.get('beaker.session')
    sess.delete()

return template('logout.tpl')

Is the user logged in?

def is_logged_in():
'''Check whether the user sent a cookie that holds a Beaker created
session id
'''

sess_id = request.cookies.get('beaker.session.id', False)

if not sess_id:
    return False

sess = request.environ.get('beaker.session')

if 'uid' not in sess:
    return False

return True