Page Sentry Setup - Oracle ApEx 4.1.1

Hi,
Hoping someone can please assist or point me in the right direction but I am creating a new Page Sentry setup in Oracle ApEx 4 based on the following link:
Updating Page Sentry for APEX 4.0 Upgrade:
http://zetetic.net/blog/2010/12/10/updating-page-sentry-for-apex-40-upgrade.html
I have pretty much just used what has been provided from this link with a few minor changes but my question that I cannot figure out why it is happening is that in MS IE8, when I fire up my app, it all starts up fine and and sets up my APP_USER and APP_SESSION fine but what I have found that, when I go to a new tab in IE8 and start up another session for this very same APP_ID, it is assigning the same APP_SESSION as the previous session, which is not what I am after from the Page Sentry.
Could someone please assist with what I need to change this pl/sql code, so that a new session id is always generated when starting up a new IE8 tab in the same browser window.
Thanks.
Tony.

Hi Tony,
If you are using OAM, why would you want each tab to have a different session?
(OTN PDF on OAM - http://www.oracle.com/technetwork/developer-tools/apex/learnmore/apex-oam-integration-1375333.pdf )
If I'm not mistaken . . . your problem with Apex 3 is now solved in Apex 4 (unless you implemented a broken page sentry function), because the session id in the url is backed by a cookie. If the session id in the url doesn't match the credentials in the cookie, it cancels the session.
At the same time, since browsers share cookies between different tabs, the database can't distinguish between page calls from one tab from page calls from another tab - because they pass the same cookie. This is a browser issue, not an apex limitation. I don't think its possible to have each tab be treated as a separate session, unless you disable the cookie, and that leaves you open to the problems you had with Apex 3.
I keep saying "if I'm not mistaken", and that's because I've got 0 applications under my belt (well, I have a websheet, but that doesn't count). I've been studying page sentry functions on-and-off since November 2011, and got nowhere. Fortunately, I discovered how to do what I wanted to do without using a page sentry function.
Here are the most helpful links I found - most of the code are variations on a theme, and they reference functions that are not well documented.
I found Christian Neumueller's second post on this page very enlightening - Re: APEX 4.1 Login page kills existing session cookie
I might implement this - http://www.oracle.com/technetwork/issue-archive/2009/09-may/o39security-101079.html
You've probably seen Joel Kallman's post - http://joelkallman.blogspot.co.uk/2010/10/custom-authentication-scheme-for-oracle.html
Here's one about NTLM, which isn't what you're looking for, but its another example of a page sentry function - http://jastraub.blogspot.co.uk/2008_03_01_archive.html
There is a little bit about session management and the login process in this pdf - http://www.sumneva.com/c/sumneva/presentations/APEX%20Behind%20the%20Scenes.pdf - all of which is very interesting.
Tak

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<pre><code>
CREATE OR REPLACE function PASSPORT.oamPageSentry ( p_apex_user in varchar2 default 'APEX_PUBLIC_USER' )
return boolean
as
l_cgi_var_name varchar2(100) := 'REMOTE_USER';
l_authenticated_username varchar2(256) := upper(owa_util.get_cgi_env(l_cgi_var_name));
l_current_sid number;
l_url_sid varchar2(4000);
l_url varchar2(4000);
l_app_page varchar2(4000);
begin
-- check to ensure that we are running as the correct database user
if user != upper(p_apex_user) then
return false;
end if;
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return false;
end if;
l_current_sid := apex_custom_auth.get_session_id_from_cookie;
l_url := wwv_flow_utilities.url_decode2(owa_util.get_cgi_env('QUERY_STRING'));
wwv_flow.debug('oamPageSentry: request from ' || l_authenticated_username || ' (sid=' || l_current_sid || ') for ' || l_url);
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l_url_sid := REGEXP_SUBSTR(l_url, '[^:]*', 1, 5);
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p_user=>l_authenticated_username,
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p_user=>l_authenticated_username,
p_session_id=> l_current_sid );
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to_char(apex_application.g_flow_id)||':'||
to_char(nvl(apex_application.g_flow_step_id,0))||':'||
to_char(apex_application.g_instance);
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end if;
-- in previous versions of apex the remember_deep_link call would actually work and cause
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-- clean that up with the first cleanup redirect at the beginning of the function
l_app_page := SUBSTR(l_url, 3, LENGTH(l_url) - 2);
wwv_flow.debug('oamPageSentry: post_login for ' || l_authenticated_username || ' app_page ' || l_app_page );
apex_custom_auth.post_login(
p_uname => l_authenticated_username,
p_session_id => nv('APP_SESSION'),
p_app_page => l_app_page
return false;
end if;
end oamPageSentry;
</code></pre>

Billy,
Thanks a lot for this great info. It seems to have solved the problem I have been having with an NTLM page sentry function for the last 2 or 3 days. Very difficult stuff to debug what is going on inside these functions when they (obviously) behave differently once you have logged in etc.
As I said, your solution seems to solve my problem - but I have a couple of questions :
1. Is this related to 10347091 which is mentioned on http://www.oracle.com/technetwork/developer-tools/apex/downloads/apex402knownissues-189793.html ?
If yes, did you try the patch?
2. Have you logged a bug or had any feedback (externally or within the forum) from Oracle people on this issue?
I was about to log a bug regarding the deep linking and FSP_AFTER_LOGIN_URL not behaving correctly when I noticed the known issues and now your valuable work. I was going to try the patch, but I'd rather not apply it unless I know it will solve my problem.
Please let me know.
Thanks
Glen

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Hi,
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====
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=================
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===============
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davejlee wrote:
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I'm not sure what you mean with this?
In APEX Upgrade guide are listed 'Database Management Differences between Oracle APEX 2.1 and 3.2'
http://www.oracle.com/technology/products/database/application_express/html/3.2_and_xe.html

Newbi Question: How does one create a similar page to this using APEX 3.1?

Hi,
I am trying to create a help document with screen shoots inside our APEX web application and I am hamstrung by the type of Region and Item objects available to me. When I tried to create HTML region I was limited to how much html characters I can put in the source. When I look into the item menu nothing seems to allow me to stick in large chunk of HTML code either.
A little searching on this forum and I came across this page: http://www.oracle.com/technology/obe/apex/apex31nf/apex31blob.htm#t
It is exactly the type of page I want to create with lots of text and screen shots and I presume that it is built within APEX? So my questions is: How did they do this? Did they use tools available within APEX or some external tool? Was all this outputted using BLOB and Htp("") and PL/SQL? I am trying hard to avoid having to do that.
I was also unable to stick in an in image into my page using instruction from http://download.oracle.com/docs/cd/E10513_01/doc/appdev.310/e10499/ui.htm#CBBHGJCH which left me pretty frustrated. (external amazon gif worked).
Thanks for any help,
Wayne

Wayne,
I am glad that you got images to display. I am not sure what kind of html report you want to display, there is a limit of number of characters in a region its 32767 characters, so if you want to display large html file you can create html region with no template and limit each region to 30,000 characters and create as many region as you want.
If you want to display data from any table ( as per the first url) you can create SQL reports, something like
select ename
     , deptno
     , sal
     , case
          when ename = 'SCOTT' then '<img src="#WORKSPACE_IMAGES#us_flag.gif" alt="Image Title">'
          when ename = 'SMITH' then '<img src="#WORKSPACE_IMAGES#chants.gif" alt="Image Title">'
          when ename = 'MARTIN' then '<img src="#WORKSPACE_IMAGES#cloche.gif" alt="Image Title">'
          when ename = 'MILLER' then '<img src="#WORKSPACE_IMAGES#chandelles.gif" alt="Image Title">'
          when ename = 'JONES' then '<img src="#WORKSPACE_IMAGES#shoe.gif" alt="Image Title">'
          else '<img src="#WORKSPACE_IMAGES#hallo.gif" alt="Image Title">'
     end image
from empThanks,
Manish

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