[Zope] Q: How to pass session information from outside into Zope?

[Avus]

Martijn Pieters <mj@antraciet.nl> wrote:
> At 22:25 24-10-99 , Avus wrote:
> >Hi,
> >
> >how do I transfer session (or authentication) information from a non-Zope
site
> >(PHP or else) to a Zope site?
> >
> >Cookies just work on the same site, hidden fields just work for 'post's.
> >So I'll probably have to pass the information in the URL.
> >My Q:
> >How do I get Zope to strip and evaluate the id information I pass in the
URL
> >string, even if the Zope object I'm calling is not explicitly prepared to
do
> >that (i.e. it is no DTML method that has code for this)?
> >Zope URLs are often created on the fly (db query), so the handling of the
id
> >string in the URL has to be acquired by some inheritance magic, I guess.
> >
> >Any ideas how to solve this? The inted is that the user doesn't have to
login
> >twice (the session id could be stored in a common db).
> 
> You could use __bobo_traverse__ or __get_item__ for this. It'll enable URLs

> like:
> 
>    http://your.zope.server/Session/0x1234/SQLMethod/city/New%20York/
> 
> where Session is an instance of a Python class you've written. It's 
> __bobo_traverse__ method will be called with the 0x1234 part of the URL and

> the REQUEST object, while __get_item__ will only get the 0x1234 part. See 
> lib/python/Shared/DC/ZRDB/DA.py for an example, the second part of my 
> example URL is implemented there (ZSQL Methods support direct traversal).

So the Session class handles the session ID (i.e. maps it to a particular
user, for example), right? Any object to the right of the Session object would
have to be traversable (is this always the case?).

If I want to keep the site structure, I also want to have the session object
call the original URL after authenticating.

http://zope.server/Session/0x1234/stuff/info/abc should call the original
http://zope.server/stuff/info/abc
so I need some redirector logic as well.

And then it's easier for the 'calling site' to encode the session id like
http://zope.server/stuff/info/abc?id=0x123 than to put it in the middle of an
URL string.
Is there a way to inherit the capability to handle 'get' (id) parameters in
random Zope objects?

Avus


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