This is only a first commit towards making this feature work.
- Hook dynamic clients into fosite by returning them from the storage
interface (after finding and validating them)
- In the auth endpoint, prevent the use of the username and password
headers for dynamic clients to force them to use the browser-based
login flows for all the upstream types
- Add happy path integration tests in supervisor_login_test.go
- Add lots of comments (and some small refactors) in
supervisor_login_test.go to make it much easier to understand
- Add lots of unit tests for the auth endpoint regarding dynamic clients
(more unit tests to be added for other endpoints in follow-up commits)
- Enhance crud.go to make lifetime=0 mean never garbage collect,
since we want client secret storage Secrets to last forever
- Move the OIDCClient validation code to a package where it can be
shared between the controller and the fosite storage interface
- Make shared test helpers for tests that need to create OIDC client
secret storage Secrets
- Create a public const for "pinniped-cli" now that we are using that
string in several places in the production code
Before this change, we used the `fosite.DefaultOpenIDConnectClient{}` struct, which implements the `fosite.Client` and `fosite.OpenIDConnectClient` interfaces. For a future change, we also need to implement some additional optional interfaces, so we can no longer use the provided default types. Instead, we now use a custom `clientregistry.Client{}` struct, which implements all the requisite interfaces and can be extended to handle the new functionality (in a future change).
There is also a new `clientregistry.StaticRegistry{}` struct, which implements the `fosite.ClientManager` and looks up our single static client. We could potentially extend this in the future with a registry backed by Kubernetes API, for example.
This should be 100% refactor, with no user-observable change.
Signed-off-by: Matt Moyer <moyerm@vmware.com>