Modify runner projects selecting method in runners API

lib/api/entities.rb

@@ -387,12 +387,12 @@ module API
       expose :tag_list
       expose :version, :revision, :platform, :architecture
       expose :contacted_at, as: :last_contact
-      expose :token, if: lambda { |runner, options| options[:user_is_admin] || !runner.is_shared? }
+      expose :token, if: lambda { |runner, options| options[:current_user].is_admin? || !runner.is_shared? }
       expose :projects, with: Entities::RunnerProjectDetails do |runner, options|
-        if options[:user_is_admin]
+        if options[:current_user].is_admin?
           runner.projects
         else
-          runner.projects.where(id: options[:available_projects_ids])
+          options[:current_user].authorized_projects.where(id: runner.projects)
         end
       end
     end

lib/api/runners.rb

@@ -33,11 +33,7 @@ module API
         runner = get_runner(params[:id])
         authenticate_show_runner!(runner)
 
-        available_projects_ids = runner.projects.select{ |p| can?(current_user, :read_project, p) }
-                                       .map(&:id) unless current_user.is_admin?
-
-        present runner, with: Entities::RunnerDetails, user_is_admin: current_user.is_admin?,
-                        available_projects_ids: available_projects_ids
+        present runner, with: Entities::RunnerDetails, current_user: current_user
       end
 
       # Update runner's details