Auto Login

I am trying to create an auto login control to auto login to piwik depending on determined permissions from an external system. What i really need to figure out is where i can override the login page, and select the piwik account i want to login in with at control level, instead of popping a login page.
Any ideas would be appreciated.

We don’t have a working example of this. There are open tickets to implement OpenID, CAS, etc.

Not sure if this is what you’re looking for, but you might take a look at the HttpAuthLogin plugin.

Not sure really. I already log into modx once, so I was trying to figure out a way to auto log into piwik based on that. This does help. How do i go about installing this plugin?