title: How to get PortletRequest in the JSON WebService in Liferay?
body: <p>This question originates due to I need to use <em>LoginUtil.login()</em> in my Liferay portlet. Well, to affect the login method from <em>LoginUtil</em> I should have <em>HttpServletRequest</em>, <em>PortletRequest</em> or something similar.</p>
  
  <p>Could you explain me how I can get these objects in the JSON WS layer? Or probably there are another ways to practice digest authentication in Liferay 6.2?</p>