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location: HelpOnSessions

How sessions work in MoinMoin

目次

  1. How sessions work in MoinMoin
    1. Session related configuration
      1. Single wiki
      2. Multiple separate wikis under same domain, all using wikiconfig (not farmconfig)
      3. Wiki farm, host based farming
      4. Wiki farm, path based farming
      5. Wiki farm, port based farming
    2. Session example code

Sessions in MoinMoin are implemented using a special session service that can be configured in cfg.session_service.

Code using the session framework currently includes:

cookie_name

None

Part of the session cookie name. None means to create the name from some url parts, 'siteidmagic' means use cfg.siteid (name of config file), anything else will be just used as is.

cookie_domain

None

Domain used in the session cookie.

cookie_lifetime

(0, 12)

Cookie lifetime in hours, can be fractional. First tuple element is for anonymous sessions, second tuple element is for logged-in sessions. For anonymous sessions, t=0 means that they are disabled, t>0 means that many hours. For logged-in sessions, t>0 means that many hours, or forever if user checked 'remember_me', t<0 means -t hours and ignore user 'remember_me' setting - you usually don't want to use t=0, it disables logged-in sessions.

Single wiki

Likely the only interesting item is cookie_lifetime.

Multiple separate wikis under same domain, all using wikiconfig (not farmconfig)

The default cookie_name = None creates a different cookie name and separate sessions for each wiki.

If you want separate sessions for your wikis, you can't use cookie_name = 'siteidmagic' because that always would set the name to MOIN_SESSION_wikiconfig. So either explicitly set a unique cookie_name for each wiki or use cookie_name = None.

Wiki farm, host based farming

E.g. wiki1.example.org and wiki2.example.org.

If you like shared sessions, shared user profiles, use this in your farmconfig: 

   1     cookie_domain = '.example.org' # cookie domain matches for all wikis
   2     cookie_name = 'myfarm' # cookie name is same for all wikis
   3     session_dir = '/same_session_dir' # use same storage for session files
   4     user_dir = '/same_user_dir' # use same storage for user profiles

Wiki farm, path based farming

E.g. example.org/wiki1 and example.org/wiki2.

If you like shared sessions, shared user profiles, use this in your farmconfig: 

   1     cookie_name = 'myfarm' # cookie name is same for all wikis
   2     session_dir = '/same_session_dir' # use same storage for session files
   3     user_dir = '/same_user_dir' # use same storage for user profiles

Wiki farm, port based farming

E.g. example.org:8000 and example.org:8001.

If you like shared sessions, shared user profiles, use this in your farmconfig: 

   1     cookie_name = 'myfarm' # cookie name is same for all wikis
   2     session_dir = '/same_session_dir' # use same storage for session files
   3     user_dir = '/same_user_dir' # use same storage for user profiles

Session example code

As an extension programmer, in order to use session variables, you can use request.session like a dict, values stored there are automatically saved and restored if a session is available.

Here's an example macro using the session code: 

   1 # -*- coding: iso-8859-1 -*-
   2 
   3 """
   4     Tests session state.
   5 """
   6 
   7 Dependencies = ['time']
   8 
   9 def execute(macro, args):
  10     if macro.request.session.is_new:
  11         return macro.formatter.text('Not storing any state until you send a cookie.')
  12     if 'test' in macro.request.session:
  13         return macro.formatter.text("Loaded value %d" % macro.request.session['test'])
  14     import random
  15     value = random.randint(1, 100000)
  16     macro.request.session['test'] = value
  17     return macro.formatter.text("Set to value %d" % value)