Oracle portal HTML template - session, context or user identification

I have an HTML template in a page group. Users come to this through SSO authentication. I have put a link in this HTML template to another page group. Problem is, user loses session in second page group. It always shows a public user in second page group. Please see my code snippet below.
*<body>*
     *<oracle>*
          declare
          v_buf VARCHAR2(4000);
          l_http_language varchar2(30);
          l_logged_on number;
          BEGIN
               l_http_language := portal.wwctx_api.get_http_language;
               IF l_http_language='en-gb'
               THEN
                    mydb.RenderPortletXMLContent('header_EN.xml', 'sspheader.xslt');
               ELSE
                    mydb.RenderPortletXMLContent('header_CY.xml', 'sspheader.xslt');
               END IF;
               l_logged_on := portal.wwctx_api.logged_on;
               HTP.P(l_logged_on);
               IF l_logged_on > 0 THEN
                    mydb.RenderPortletXMLContent('header_EN_withLogout.xml', 'sspheader_withLogout.xslt');
               END IF;
               HTP.P(v_buf);
          END;
     *</oracle>*
*</body>*
xml and xslt files produce HTML code which has a link to second page group. (The link is a plain static link whithout any parameters).
"l_logged_on" variable gives me a value of 1 in first page group after authentication but it returns 0 in the second page group.
If I use "Don't chache" option then it works fine. But I can not use this option because of performance problem.
Many thanks in advance for your kind replies.
Edited by: user2543792 on 14-Jul-2010 02:52
Edited by: user2543792 on 14-Jul-2010 03:06

Hmmm - not a good idea to do user related stuff on page which is set to system level caching. In general, your Portal landing page should not do any customization to aid performance as you can cache content at system level for an X number of minutes, by far the best approach for fast portals.
But you could also use owa_util.get_cgi_env('ORACLE_SSO_USER') :
1. Create a function ssouserid in an application schema
create or replace function ssouserid
return number
is
l_ssouser varchar2(200) := owa_util.get_cgi_env('ORACLE_SSO_USER');
i number(1) := 1;
begin
if l_ssouser = 'PUBLIC'
then
i := 0 ;
end if ;
return i;
end ;
/2. Create a HTML page skin with the following code between the oracle tags :
<oracle>
declare
p number(1) := portal.ssouserid;
BEGIN
IF p>0 THEN
HTP.P('Logged on');
ELSE
HTP.P('Not logged on');
END IF;
END;
</oracle>3. Associate your page with the page skin created in step 2. You should now see the message 'Logged on' when you view the page while being logged on.
Hope this helps,
EJ

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