Some notes on porting from Webware to Skunkweb

I have nearly completed a test port of my hobby curve and
surface fitting web site, http://zunzun.com, from Webware
to Skunkweb.  The conversion is sufficiently complete for
considerable comparitive testing to be made.  I would like
to make these notes available for both mailing lists, if
anyone is interested in this subject.


First, here is the current Webware-generated home page URL:

http://zunzun.com/Fitter/HomePage

and the equivalent Skunkweb-generated home page URL:

http://zunzun.com/sw/test/PageFiles/HomePage.py


You'll see that the Webware page uses a URL-based session
ID when it loads, and this is not yet implemented in Skunkweb
so those sessions are limited to being cookie-based.  This
is a limitation for a single user of the web site who is too
paranoid to turn cookies on.  The thousands of other users
have no problem with cookies, and although I would rather
have a solution that works for everyone a 99.95% success
rate here is good enough for me.  I will need to add a cookie
test to the home page, I guess.


Conversion was fairly straightforward, no changes to the
Webware Page class hierarchy subclassing or existing object
model were needed.  The main changes were:

1) Accessing request and response data.  These changes were
   trivially on the order of cut-n-paste across files.

2) Removing thread-specific data storage, as it is not
   needed with Skunkweb.

3) Moving some minimal amounts of thread-shared site constants
   around a bit.

4) Removing thread locking/unlocking around non-threadsafe
   third-party libraries as this is not needed with Skunkweb.

5) Calling the Python pages directly, as in the Skunkweb
   URL above.  I'm porting and not yet converting, for example
   I have not used Skunkweb's caching or STML.


     James Phillips
     http://zunzun.com


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