Session: set authID and authenticatedBy (#85806)

* Authn: Resolve authenticate by and auth id when fethcing signed in user

* Change logout client interface to only take Requester interface

* Session: Fetch external auth info when authenticating sessions

* Use authenticated by from identity

* Move call to get auth-info into session client and use GetAuthenticatedBy in various places

pkg/services/authn/authnimpl/sync/oauth_token_sync.go

@@ -3,6 +3,7 @@ package sync
 import (
 	"context"
 	"errors"
+	"strings"
 	"time"
 
 	"golang.org/x/sync/singleflight"
@@ -39,11 +40,16 @@ func (s *OAuthTokenSync) SyncOauthTokenHook(ctx context.Context, identity *authn
 		return nil
 	}
 
-	// not authenticated through session tokens, so we can skip this hook
+	// Not authenticated through session tokens, so we can skip this hook.
 	if identity.SessionToken == nil {
 		return nil
 	}
 
+	// Not authenticated with a oauth provider, so we can skip this hook.
+	if !strings.HasPrefix(identity.GetAuthenticatedBy(), "oauth") {
+		return nil
+	}
+
 	_, err, _ := s.singleflightGroup.Do(identity.ID, func() (interface{}, error) {
 		s.log.Debug("Singleflight request for OAuth token sync", "key", identity.ID)