[Zope] User authentication via relational database

[Hermann Himmelbauer]

Hi,
I need to authenticate users against a relational database and after that give 
them rights to Zope. I have still problems understanding the underlying Zope 
concepts, perhaps you can give me some hints.

My case is quite simple: My system design has 4 roles: "anonymous", 
"customer", "member" and "director". When people log on to the system, their 
login/pass is checked with a relational database and then the user is 
associated with one of these roles.

It would be ideal to map those roles to Zope, so that I can limit access to 
certain functions directly with Zope. But how could I do that?

I thought about it like that: In Zope, I create 4 users, and give each of 
these users an appropriate Zope role. If someone logs in the userid/pass is 
then checked with the relational database and after that the user is somehow 
logged into Zope as one of these 4 users accordings to the rights set in my 
database. For limiting access I would then adapt the security of certain Zope 
objects.

Will this concept work with Zope? What would I have to do? Or is there perhaps 
a better solution to my problem?

Best Regards,
Hermann

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