Support JWT authentication provided by request header

[jakelong95]

We're running Trino Gateway behind a load balancer that provides an oauth JWT on all webapp requests through x-amzn-oidc-accesstoken, but our users need to sign in twice in order to view the Gateway UI - once for our organization's LB sso, and again for the Trino Gateway sso.

Has there been any consideration for getting an oauth JWT through a configurable header?

[mosabua]

No .. but that sounds perfectly reasonable to do. Want to look at sending a PR?

[arashekh]

We have similar requirements related to JWT tokens retrieved from Identity Providers (IdPs). This could potentially be addressed through a configurable and generic solution. I aim to include this in an upcoming pull request #812. Pease review it.