- session[:remember_me] ||= params[:remember_me]
- session[:referer] = safe_referer(params[:referer]) if params[:referer]
- password_authentication(params[:username], params[:password])
+ session[:remember_me] = params[:remember_me] == "yes"
+
+ referer = safe_referer(params[:referer]) if params[:referer]
+
+ password_authentication(params[:username].strip, params[:password], referer)