使用authlogic与iPhone客户端使用ASIHTTPRequest或NSURLConnection

I am currently working on an iPhone front end for a rails service that uses vanilla authlogic for authentication. I am completely stuck on how to login to authlogic from the iPhone using ASIHTTPRequest or possibly NSURLConnection. How do I get the current user once I am already logged in? I have found many similar questions here on Stack Overflow but none of them provided good, in depth answers. Any help is greatly appreciated!I am currently working on an iPhone front end f