Finding out the userid from a JSP or servlet. (9.0.2)

Hi Again!
I have a JSP in the htdocs directory of my portal which fetches binary objects
from a content repository. I use this binary.jsp to display images embedded
in a content portlet shown within the portal. So as far as the browser gots
the portal page it starts to fetch the images with an ordinary get operation
to a given URL of the binary.jsp.
Now I want to be able to find out if the current user is allowed to see the
image from the content repository, so I have to find out the userid within
the JSP. But I couldn't find any way to do this. Since the binary.jsp is
not loaded in the context of the portal, it doesn't know anything about
the PortletRendererRequest, so thi code returns null:
PortletRenderRequest oraRequest = (PortletRenderRequest)
request.getAttribute(HttpCommonConstants.PORTLET_RENDER_REQUEST);
if ( oraRequest == null ) {
makeLog ("Could not get PortletRequest!");
} else {
oracleUser = oraRequest.getUser().getName();
So I've tried to put the userID into the servlet session like this
request.getSession().setAttribute("iASUserName", oracleUser);
but obviously the binary.jsp doesn't share the same http session object,
so this code returns null within the binary.jsp
request.getSession().getAttribute("iASUserName");
We allready done this with the old version of PDK and JServ and
everything was OK, except that we used the deprecated API
request.getSession().setValue("iASUserName", oracleUser);
request.getSession().getValue("iASUserName");
No both ways doesn't work, since we are using Orion-Appserver
and PDK 9.0.2 :-(
Is there anyone out there with an idea how we can solve
this problem?

I could understand what you are lookig for. We can probably relie on cookies to share user information between portal & non-portal resources.
Example :
Lets say we have a contributor.jsp viewed through portal. This sets up a cookie in the client machine which carries portal user name. It persists till the end of user session.
contributor.jsp
<%
PortletRenderRequest pr =
(PortletRenderRequest)request.getAttribute(HttpProvider.PORTLET_RENDER_REQUEST);
String pUser = pr.getUser().getName();
/* Customize these strings to suitable names. */
String pUserKey = "CUR_PORTAL_USER";
String pDomain = ".oracle.com";
%>
<SCRIPT language="JavaScript1.2">
var today = new Date();
function setCookie(name, value, domain)
document.cookie = name + "=" + escape(value) +
"; path=/" +
"; domain=" + domain;
</SCRIPT>
<BODY onload="javascript:setCookie('<%=pUserKey%>', '<%=pUser%>', '<%=pDomain%>')"/>
This cookie now will be set in the client machine and any JSP in the same domain will be able to access it.
Let me know if it offers any help to your problem.
Thanks,
Amjad.

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