[jira] Assigned: (DERBY-3673) Add checks that a new role isn't already a user authorization id

["Dag H. Wanvik (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/DERBY-3673?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Dag H. Wanvik reassigned DERBY-3673:
------------------------------------

    Assignee: Dag H. Wanvik

> Add checks that a new role isn't already a user authorization id
> ----------------------------------------------------------------
>
>                 Key: DERBY-3673
>                 URL: https://issues.apache.org/jira/browse/DERBY-3673
>             Project: Derby
>          Issue Type: Sub-task
>            Reporter: Dag H. Wanvik
>            Assignee: Dag H. Wanvik
>             Fix For: 10.5.0.0
>
>         Attachments: derby-3673-1.diff, derby-3673-1.stat
>
>
> Derby current does not have dictionary information about legal users.
> Authentication is configurable as being derby internal, LDAP based, or
> user supplied.
> SQL specifies that user ids and role names go in the same namespace
> (authorization ids).  Therefore, at role creation time, a new role
> name should be checked against legal users for this database, and be
> defined if there is already a user id by that name.
> Unfortunately, since there is currently no reliable dictionary
> information about legal users, the best we can do presently is perform
> heuristic checks that a proposed role id is not already a user id.
> Since the check can not not reliable, we should also add a check to
> prohibit conncting with a user id that is a known role id.

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