This is a very simple authentication system for a Ruby on Rails server in the same internet domain. It will allow you to get back the username of the person hitting your server provided they already have authenticated with an IBM Lotus/Domino or Websphere server that uses multi-server based session authentication. IBM Domino/Websphere authentication works by placing an encrypted cookie for a given domain. There are a number of ways to find out what this cookie means. For instance, you could either: 1. Decrypt the cookie using the secret key in the domino directory; or 2. Pass that cookie along to a live domino server and get back the username. In this example, we are going to use the second option. This means we take that cookie and then pass it to an IBM server to check the authentication. The cookie is stored in as LTPA token. Here is the ruby on rails code: require 'open-uri' module DominoAuthenication public # accesses the current user from the session. # overwrite this to set how the current user is retrieved from the session. # To store just the whole user model in the session: # # def current_user # session[:user] # end # def current_user if session[:user] @current_user ||= session[:user] else begin tokenstring = "LtpaToken=" tokenstring = tokenstring + cookies[:LtpaToken] if cookies[:LtpaToken] OpenURI.open_uri('http://[your domino server here]/[your database]/[some page that returns the username]', "Cookie" => tokenstring) do |http| @current_user = http.read.strip end #rescue end end end end On the domino side, you just need to create a database and then a page within the database that has a field returning @username(). This will then return the full username. If you are using QuickPlace for instance, you will get back something like "CN=user/OU=placename/OU=QP/O=certifier" and you can deal with this as you like in your ruby code.
on 2006-06-26 06:03
on 2006-06-26 09:42
But how did you put Domino and ROR under the same domain? Can you describe more your solution? David
on 2006-07-09 10:18
As long as you have the RoR on a server in the same domain, e.g. http://www.projectlounge.com is the domino server, and http://ror.projectlounge.com is the Ruby on Rails server, then it will be in the same domain when you set the authentication to work across the domain. You could also have them on the same server, and then just use mod rewrite to direct requests based on the URL for instance http://www.projectlounge.com/dominorails/* will go the RoR server and the rest goes to domino. This is how we are expanding IBM QuickPlace with RoR code and it seems to work fairly well. You get the ability to write quick features in RoR that you can link into Domino. I have started to write a DominoRecord type base class that can make it a little faster to include Domino models. Email me if you want to help with that. Ian.