Authorization regime breaks when you use global Session Variable

Hello

I have a problem with my authorization scheme.

Background:

In the diagram, it checks if it exists there is an email in my USERS table which is equal to my Global Variable, LOWER_USER. It verifies this authorization once per page view.
LOWER_USER has a comprehensive calculation that is running "on the new Instance (new session)" which fills the variable with the result of PL/SQL expression lower (v ('APP_USER'))

This works if you start at the home page (which has no authorization schema) and then go to the page with the diagram of authorization.

However, if you follow a link to the clever page of the authorization that the first page of your session, authorization error is displayed.

Tried:

I found if I changed my authorization scheme to compare the existence of an e-mail of the USERS table to lower (v ('APP_USER')), it still works.

Conclusion:

It seems that there is an unanticipated problem of Order of Execution here. The global variable must not be filled before the authorization page check?

Thanks for your help!

parkerktemple-Oracle wrote:

I have a problem with my authorization scheme.

Background:

In the diagram, it checks if it exists there is an email in my USERS table which is equal to my Global Variable, LOWER_USER. It verifies this authorization once per page view.
LOWER_USER has a comprehensive calculation that is running "on the new Instance (new session)" which fills the variable with the result of PL/SQL expression lower (v ('APP_USER'))

This works if you start at the home page (which has no authorization schema) and then go to the page with the diagram of authorization.

However, if you follow a link to the clever page of the authorization that the first page of your session, authorization error is displayed.

Tried:

I found if I changed my authorization scheme to compare the existence of an e-mail of the USERS table to lower (v ('APP_USER')), it still works.

Conclusion:

It seems that there is an unanticipated problem of Order of Execution here. The global variable must not be filled before the authorization page check?

The point on the new Instance treatment is not the place to calculate this value. In APEX 5.0 using the new point of treatment after the authentication , or in earlier versions use a procedure after authentication in the authentication scheme. (Still , including your APEX version when you ask a question allows appropriate solutions to provide quickly and efficiently: How to get the answers from the forum)

Alternatively, if you are using a custom authentication scheme which strengthens the tiny usernames and that's how you want to treat throughout the application, by setting the p_uppercase_username parameter in the service of connection to false will result in the value of APP_USER lowercase.

Tags: Database

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