Feature Request | Role Claim and Role assignment for Oauth2

[itzteajay-glitch]

Firstly I want to say thank you for this awesome plugin it's done wonders for my little site!

I currently leverage authentik for my authentication provider and I was hoping that role claim could be implemented in the application. In another application I use it's implemented fairly well so I'll include screenshots of their UI to help provide some context.

This would be incredibly useful as it would provide me the ability to manage all roles in my wordpress site from my provider and therefore leverage roles in my provider across all my various services.

[figureone]

We do have a longstanding meta thread to bring this functionality into the UI for easier control: #75
These screenshots help to provide an example UI for the eventual feature, thanks!

That said, you can currently accomplish this by hooking into authorizer_custom_role and define the role mappings there. Here is some documentation specific to our institution, but with some minor changes it should work the same for you: https://github.com/uhm-coe/authorizer/wiki/Integrating-WordPress-Roles-with-UH-Groupings#step-4-add-your-integration-code-to-your-wordpress-theme
You might also need to hook into authorizer_oauth2_generic_authorization_parameters if an extra scope is needed to fetch the role bases: https://github.com/uhm-coe/authorizer/blob/master/src/authorizer/class-authentication.php#L557-L565
For example, something like this:

add_filter( 'authorizer_oauth2_generic_authorization_parameters', function ( $params ) {
	$params['scope'] = 'groups';
	return $params;
} );