Play Scala adventures : WTF edition

controllers.scala

package controllers

import play._
import libs.OpenID
import play.mvc._


object Application extends Controller {

  import views.Application._

  @Before(unless=Array("login","authenticate"))
  def checkAuthenticated() = {
    session("user") match {
      case Some(user) => Continue
      //case _ => login() <= compile error Application.this.login of type play.templates.Html does not take parameters
      case _ => login //<= this works
    }
  }

  def index = {
    html.index("Your Scala application is ready!", session("user").getOrElse(""))
  }

  def login = {
    //html.login <= this doesn't work, returns BaseScalaTemplate(play.templates.HtmlFormat$@60e07ad7)
    html.login() //<= this works
  }

  def authenticate = {
    val user = params.get("user")
    if (OpenID.isAuthenticationResponse ) {
      val verifiedUser = OpenID.getVerifiedID
      if (verifiedUser == null) {
        flash += ("error", "Oops. Authentication has failed")
        login
      }
      session.put("user", verifiedUser.id)
      flash += ("success", "You have logged in successfully")
      index
    } else {
      if(! OpenID.id(user).verify()){
        flash += ("error", "Oops. Authentication has failed")
        login
      }
    }
  }
}