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## Please edit system and help pages ONLY in the master wiki!
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## For more information, please see MoinMoin:MoinDev/Translation.
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##master-page:Unknown-Page
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##master-date:Unknown-Date
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#acl -All:write Default
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= How sessions work in MoinMoin =
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Sessions in MoinMoin are implemented using a special session handler that can be configured in `cfg.session_handler`. By default, an instance of the class `MoinMoin.session.DefaultSessionHandler` is used for managing sessions.
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Code using the session framework currently includes:
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* the superuser "change user" functionality, see HelpOnSuperUser
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* the visited pages trail
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== Session related configuration ==
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|| cookie_domain || `None` || Domain used in the session cookie. ||
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|| cookie_path || `None` || Path used in the session cookie. ||
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|| cookie_lifetime || `12` ||=0: forever, ignore user 'remember_me' setting; >0: n hours, or forever if user checked 'remember_me'; <0 -n hours, ignore user 'remember_me' setting ||
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|| anonymous_session_lifetime || undefined || Set this to a non-zero value to enable anonymous sessions (can be fractional) [hours]. ||
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(!) If you run a wiki farm and you want to share the session cookie between farm wikis, you want to change `cookie_domain` and/or `cookie_path`.
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(!) If you want anonymous users to get session features (e.g. a trail), set `anonymous_session_lifetime`.
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== Replacing session storage ==
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Should you wish to store session data somewhere other than the filesystem cache Moin uses, you can use the `DefaultSessionHandler` along with a different class descending from `DefaultSessionData`. See `MoinMoin/session.py` for more details.
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It is also possible but not recommended to use a different session handler altogether.
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== Session example code ==
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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. Some more advanced usage is possible, see `MoinMoin.session.SessionData` in the file `MoinMoin/session.py`.
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Here's an example macro using the session code:
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# -*- coding: iso-8859-1 -*-
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Dependencies = ['time']
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def execute(macro, args):
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if macro.request.session.is_new:
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return macro.formatter.text('Not storing any state until you send a cookie.')
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if 'test' in macro.request.session:
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return macro.formatter.text("Loaded value %d" % macro.request.session['test'])
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value = random.randint(1, 100000)
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macro.request.session['test'] = value
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return macro.formatter.text("Set to value %d" % value)