[jira] Commented: (DERBY-3327) SQL roles: Implement authorization stack (and SQL session context to hold it)

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

    [ https://issues.apache.org/jira/browse/DERBY-3327?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12584589#action_12584589 ] 

Dag H. Wanvik commented on DERBY-3327:
--------------------------------------

DERBY-3327-4-full-e committed as svn 643920.

> SQL roles: Implement authorization stack (and SQL session context to hold it)
> -----------------------------------------------------------------------------
>
>                 Key: DERBY-3327
>                 URL: https://issues.apache.org/jira/browse/DERBY-3327
>             Project: Derby
>          Issue Type: New Feature
>          Components: Security, SQL
>            Reporter: Dag H. Wanvik
>            Assignee: Dag H. Wanvik
>             Fix For: 10.5.0.0
>
>         Attachments: DERBY-3327-1.diff, DERBY-3327-1.stat, DERBY-3327-2.diff, DERBY-3327-2.stat, DERBY-3327-3.diff, DERBY-3327-3.stat, DERBY-3327-4-full-b.diff, DERBY-3327-4-full-b.stat, DERBY-3327-4-full-c.diff, DERBY-3327-4-full-c.stat, DERBY-3327-4-full-d.diff, DERBY-3327-4-full-d.stat, DERBY-3327-4-full-e.diff, DERBY-3327-4-full-e.stat, DERBY-3327-4-full.diff, DERBY-3327-4-full.stat
>
>
> The current LanguageConnectionContext keeps the user authorization identifier for an SQL session.
> The lcc is shared context also for nested connections (opened from stored procedures).
> So far, for roles, the current role has been stored in the lcc also. However, SQL requires that
> authorization identifers be pushed on a "authorization stack" when calling a stored procedure, cf.
> SQL 2003, vol 2, section 4.34.1.1 and 4.27.3 and 10.4 GR 5h and i.
> This allows a caller to keep its current role after a call even if changed by the stored procedure.
> This issue will implement the current role name part ("cell") of the authorization stack. 
> The authorization stack will be implemented as of the SQL session context.
> The patch will also implement the pushing of the current unqualified schema name part of
> the SQL session context, cf. 10.4 GR 5a (DERBY-1331).

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