How to disable certain parts of the application in jsf?

Question

I have a JSF application in which I have different servlets and chips. The server is located on a real IP address. Now I want one servlet to be accessible from anywhere on the network, should the rest of the application be accessible only through localhost? What is the easiest way to do this?

Answer 1

Use Filterthat maps to url-pattern, which covers the resources you would like to hide, and does basically the following in a method doFilter():

if (request.getRemoteAddr().equals(request.getLocalAddr())) {
    chain.doFilter(request, response);
} else {
    ((HttpServletResponse) response).sendError(HttpServletResponse.SC_FORBIDDEN);
}

It will display an HTTP 403FORBIDDEN error for requests not created by the same client as the server.