[ http://issues.apache.org/jira/browse/DERBY-464?page=all ]

Satheesh Bandaram updated DERBY-464:
------------------------------------

    Attachment: GrantRevokePartII.txt

I am attaching Grant and Revoke, Part II patch to implement authorization 
scheme. This patch enforces permission checks that part I patch records in 
system catalogs. I am still adding more test cases and need to update 
functional spec with some review comments. Let me know if anyone has any 
comments or have trouble applying the patch. I moved some grant revoke tests, 
so may confuse patch program.

Next I will work on implementing authorization for Trigger, View and 
Constraints, followed by some upgrade, migration and metadata changes.


> Enhance Derby by adding grant/revoke support. Grant/Revoke provide finner 
> level of privileges than currently provided by Derby that is especially 
> useful in network configurations.
> -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
>
>          Key: DERBY-464
>          URL: http://issues.apache.org/jira/browse/DERBY-464
>      Project: Derby
>         Type: New Feature
>   Components: SQL
>     Versions: 10.0.2.1, 10.1.1.0, 10.2.0.0
>  Environment: generic
>     Reporter: Satheesh Bandaram
>     Assignee: Satheesh Bandaram
>  Attachments: GrantRevokePartII.txt, grantRevoke.patch.Dec5, 
> grantRevoke.stat.Dec5, grantRevokeSpec.html
>
> Derby currently provides a very simple permissions scheme, which is quite 
> suitable for an embedded database system. End users of embedded Derby do not 
> see Derby directly; they talk to a application that embeds Derby. So Derby 
> left most of the access control work to the application. Under this scheme, 
> Derby limits access on a per database or per system basis. A user can be 
> granted full, read-only, or no access. 
> This is less suitable in a general purpose SQL server. When end users or 
> diverse applications can issue SQL commands directly against the database, 
> Derby must provide more precise mechanisms to limit who can do what with the 
> database.
> I propose to enhance Derby by implementing a subset of grant/revoke 
> capabilities as specified by the SQL standard. I envision this work to 
> involve the following tasks, at least:
> 1) Develop a specification of what capabilities I would like to add to Derby.
> 2) Provide a high level implementation scheme.
> 3) Pursue a staged development plan, with support for DDL added to Derby 
> first.
> 4) Add support for runtime checking of these privileges.
> 5) Address migration and upgrade issues from previous releases and from old 
> scheme to newer database.
> Since I think this is a large task, I would like to invite any interested 
> people to work with me on this large and important enhancement to Derby.

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