So it looks like Jetty's JDBCLoginService[1] simply takes configuration to read tables from a given JDBC driver to extract users+passwords and roles for those users. This doesn't actually hook into the database's authentication system. Best as I've been able to find, there is no generic API provided by JDBC which Avatica could leverage.

Maybe it's possible to create our own LoginService (so we can use Jetty's built-in security support) which instantiates a Connection with the Avatica client's user/password. I'm worried about the overhead of repeatedly doing this, though.


[1] https://wiki.eclipse.org/Jetty/Tutorial/Realms#JDBCLoginService

Josh Elser wrote:
Actually, it looks like Jetty might provide some implementation which
defers to JDBC for authentication. Let me look into that.

Josh Elser wrote:
.. but what mechanism could Avatica use to do this generically? Is there
a means to verify some credentials without trying to instantiate a
java.sql.Connection with the given user/password?

Julian Hyde wrote:
I agree with Sarnath about complexity. If I’m a user logging into
database X there’s no way you could persuade me that I need to have a
set of credentials for the network hop and another for the database.

If the database uses basic authentication user name ‘scott’ password
‘tiger’, and the person who configured the Avatica server said use
basic authentication, then Avatica should use the same credentials.
Yes, it’s not very secure, but hey, that’s basic authentication.

Julian


On Mar 29, 2016, at 6:49 AM, Josh Elser<[email protected]> wrote:

Just to make sure it's clear, the credentials would have to be
duplicated elsewhere presently (e.g. in a properties file that Jetty
can read). Maybe there's a JDBC API that the Avatica server could
hook directly into to avoid such credential duplication?

Sarnath wrote:
The extra pair adds additional complexity... I think it is better
to go
with underlying database creds.. Or better provide a hook to
interested
users who want separate creds...


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