Update scope usage and add Changes for lightweight accounts

proxy/pkg/middleware/account_resolver.go

@@ -92,7 +92,7 @@ func (m accountResolver) ServeHTTP(w http.ResponseWriter, req *http.Request) {
 		m.logger.Debug().Interface("claims", claims).Interface("user", u).Msgf("associated claims with uuid")
 	}
 
-	s, err := scope.GetOwnerScope()
+	s, err := scope.AddOwnerScope(nil)
 	if err != nil {
 		m.logger.Error().Err(err).Msgf("could not get owner scope")
 		return

proxy/pkg/user/backend/cs3.go

@@ -53,9 +53,12 @@ func (c *cs3backend) GetUserByClaims(ctx context.Context, claim, value string, w
 		return user, nil
 	}
 
-	roleIDs, err := loadRolesIDs(ctx, user.Id.OpaqueId, c.settingsRoleService)
-	if err != nil {
-		c.logger.Error().Err(err).Msg("Could not load roles")
+	var roleIDs []string
+	if user.Id.Type != cs3.UserType_USER_TYPE_LIGHTWEIGHT {
+		roleIDs, err = loadRolesIDs(ctx, user.Id.OpaqueId, c.settingsRoleService)
+		if err != nil {
+			c.logger.Error().Err(err).Msgf("Could not load roles")
+		}
 	}
 
 	if len(roleIDs) == 0 {