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From Rick Hillegas <rick.hille...@oracle.com>
Subject Re: Authentication required only for remote users?
Date Mon, 15 Apr 2013 19:45:36 GMT
On 4/15/13 12:19 PM, Al Eridani wrote:
> Thank you, Rick, I'll go on learning how to write a custom 
> authenticator. Besides the section at pp. 105-107 of derbydev.pdf, are 
> there any other resources that I could consult?
Hi Al,

That sounds like the right resource to consult. If you want your custom 
authenticator to store credentials in a local Derby database, you can 
use the NATIVE authentication support described in the Reference Guide 

Hope this helps,
> On Mon, Apr 15, 2013 at 3:37 AM, Rick Hillegas 
> <rick.hillegas@oracle.com <mailto:rick.hillegas@oracle.com>> wrote:
>     On 4/12/13 3:49 PM, Al Eridani wrote:
>         This may not be possible out-of-the-box, but here it goes, in
>         case someone can help.
>         We have an application that uses Derby with a single database
>         and, until now, with no authentication.
>         The application can be configured to start Derby with either
>         the embedded or client data sources. The client data source is
>         not needed by the application, but it is useful to remotely
>         monitor the data.
>         We would like to require authentication only for remote users,
>         not the application. Alternatively, we could live with
>         requiring authentication when the application boots Derby
>         using the client data source, but not when using the embedded
>         data source.
>         The documentation does not address this. Does anybody have any
>         ideas? Thanks!
>         Al
>     Hi Al,
>     I don't know any way to do this purely within Derby's public API.
>     However, you could write your own custom authenticator which
>     checks to see whether the DRDAConnThread class appears on the
>     stack returned by Thread.getStackTrace(). DRDAConnThread will only
>     appear on the stack if you are authenticating a network connection
>     request. Note that there are no guarantees that this will work in
>     future revs of Derby; however, DRDAConnThread has been around for
>     7 years and no-one has suggested removing it.
>     Hope this helps,
>     -Rick

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