Which one should I use cancan or authlogic to only authenticate the admin folder

I have a rails 2.3.8 application that has an admin folder that if anyone enters

/admin/anything

they need to be prompted for a login...I was looking for a good approach to do this

here the resources I was looking at authorization and authentication

The way I was thinking was to install authlogic or cancan or both or neither....not sure if anyone has a better solution. BTW I dont want authentication anywhere on the开发者_运维技巧 site

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The best way to do this is to have all controllers under the admin/ namespace inherit from an AdminController with a before_filter that handles authorization

The simplest way to do this is to use http_basic authentication (railscast)

If you want multiple user/passwords, but without the complexity of devise/authlogic, try nifty_authentication (via ryan bates' nifty generators)

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As ruby-toolbox indicates, CanCan and Devise are the most popular authorization / authentication solutions for rails. Check out the always excellent railscasts.com episodes to get started:

http://railscasts.com/episodes/192-authorization-with-cancan

http://railscasts.com/episodes/209-introducing-devise

Railscasts is a fantastic resource for quickly getting up to speed on rails topics.