[Zope] Core Session Tracking 0.9 Released

Schmidt, Allen J. aschmidt@nv.cc.va.us
Fri, 5 Oct 2001 07:54:27 -0400

Hey Chris,

We have just started using Silesian recently and will soon be using Sessions
from it site-wide. It was dirt easy to setup and start using. Can you offer
any comparisons to it and CST inn terms of ease of installation, use,
management, etc.? It would be nice to see the comparisons from an expert
before we dive into Silesian big time! I would hate to have to redo it all 6
months down the road.

ANYTHING you or anyone else can offer on this topic or on using Zope
Sessions is MUCH appreciated!



-----Original Message-----
From: Chris McDonough [mailto:chrism@digicool.com]
Sent: Friday, October 05, 2001 2:31 AM
To: zope@zope.org; zope-announce@zope.org
Subject: [Zope] Core Session Tracking 0.9 Released

Hi Folks,

A new version of the Core Session Tracking product (the first one in six 
months!) has been released.  Core Session Tracking is a Product which 
allows you to easily associate transient data with anonymous users.

The product is available from 
http://www.zope.org/Members/mcdonc/Products/CoreSessionTracking.  To 
upgrade from prior releases, just remove the "old" CoreSessionTracking 
product directory and install this one as per the install instructions 
in the help/CoreSessionTracking.stx document.

A list of changes since the last version is:

   - Took advantage of securityinfo module and new BTrees modules.  As
     a result, CST 0.9 is incompatible with releases of Zope prior to
     Zope 2.3.2.

   - Objects are now acquisition-unwrapped before being placed into
     session storage (thanks to Matt Hamilton)

   - A SessionData object's __setitem__ may now be called from a
     Python Script, it failed previously with a security error.

   - Fixed bug in SessionDataManager security assertions which
     made it impossible to change security parameters (thanks to
     Uwe C. Schroeder).

   - Fixed constructor number of parameter bugs (thanks to Chris

   - Fixed bugs that made isTokenFromForm, isTokenFromCookie, and
     isTokenNew methods virtually useless (thanks to Frank Tegtmeyer).

   - added flushTokenCookie method, which deletes the token cookie from
     the client browser with prejudice.  This method is useful when
     you want to start out completely fresh with a different token.

   - Fixed bug which caused a "TypeError: loop over non-sequence" at
     startup under Zope 2.4.X in the Interfaces module which caused
     the product to not be initialized properly. (Thanks to Chris
     Withers and Joachim Werner).

   - Added multithread test cases to testSessionDataManager.

   - SessionFanout _getleaf method made more efficient by making
     allowed_hashes a dictionary (thanks to Anthony Baxter).

   - Added 'getName' alias to SessionData's 'getId' method for
     compatibility with code written for SQLSession (thanks to
     Anthony Baxter).

   - SessionDataContainer keys are now required to be strings
     (thanks to Anthony Baxter).

   - Added a new method to SessionDataManagers, "getSessionDataByKey",
     which provides a way to obtain an arbitrary session data object
     by feeding it a key (as opposed to getSessionData, which always
     obtained the session data object related to the current token).
     A user needs to possess a special permission to be able to do this.

   - Added conflict resolution to (RAM-based, internal) SessionStorage.

   - Made internal data container use "LowConflictConnection" class for
     its ZODB connections.  This class operates differently than the
     standard Connection class because it doesn't raise "read" conflict

   - Removed "AutoExpireMapping" class and merged its functionality into

   - Removed "SessionFanout" module (unecessary because we're not trying
     to support pre-2.3.2 Zopes).

   - Refactored tests slightly.

   - Added SessioningPermissions and common modules.


Chris McDonough                    Zope Corporation
http://www.zope.org             http://www.zope.com
"Killing hundreds of birds with thousands of stones"

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