On Jul 26, 2007, at 3:44 PM, Jacko wrote:

> This may be a bit too open ended but what is the best way to add user
> authentication and security services to a ruby on rails app. Is there
> a standard API or Framework to achieve this?
>
>
There are a few ways, one is well covered in the AWDWR book.
The other is similar but cleaner for you. A plugin called:     
acts_as_authenticated

Essentially things are separated into different controllers.  
Controllers that require authentication or login of some kind are not  
accessible without that. That means the URL/URI's generated by their  
methods/actions cannot be accessed without authentication.
Everything in the controllers that don't require authentication are  
accessible. (basically, though this is all a very simplified  
description, but Rails does make it all pretty easy)

But check out the Ruby Talk list at Google groups.
That's the best place to ask Rails-specific questions.
This list may get you some answers, as Rails does use Ruby and  
libraries written in Ruby. Depends on the topic