/usr/share/chef-server-api/app/ is in chef-server-api 10.12.0-1.
This file is owned by root:root, with mode 0o755.
..
/usr/share/chef-server-api/app/controllers/
/usr/share/chef-server-api/app/controllers/application.rb
/usr/share/chef-server-api/app/controllers/clients.rb
/usr/share/chef-server-api/app/controllers/cookbooks.rb
/usr/share/chef-server-api/app/controllers/data_bags.rb
/usr/share/chef-server-api/app/controllers/data_item.rb
/usr/share/chef-server-api/app/controllers/environments.rb
/usr/share/chef-server-api/app/controllers/exceptions.rb
/usr/share/chef-server-api/app/controllers/main.rb
/usr/share/chef-server-api/app/controllers/nodes.rb
/usr/share/chef-server-api/app/controllers/roles.rb
/usr/share/chef-server-api/app/controllers/sandboxes.rb
/usr/share/chef-server-api/app/controllers/search.rb
/usr/share/chef-server-api/app/controllers/users.rb
/usr/share/chef-server-api/app/helpers/
/usr/share/chef-server-api/app/helpers/cookbook_version_helper.rb
/usr/share/chef-server-api/app/helpers/tarball_helper.rb
/usr/share/chef-server-api/app/models/
/usr/share/chef-server-api/app/models/sandbox_file.rb
/usr/share/chef-server-api/app/views/
/usr/share/chef-server-api/app/views/exceptions/
/usr/share/chef-server-api/app/views/exceptions/bad_request.json.erb
/usr/share/chef-server-api/app/views/exceptions/internal_server_error.html.erb
/usr/share/chef-server-api/app/views/exceptions/not_acceptable.html.haml
/usr/share/chef-server-api/app/views/exceptions/not_found.html.erb
/usr/share/chef-server-api/app/views/exceptions/standard_error.html.erb
/usr/share/chef-server-api/app/views/layout/
/usr/share/chef-server-api/app/views/layout/application.html.erb
/usr/share/chef-server-api/app/views/main/
/usr/share/chef-server-api/app/views/main/index.html.erb