package be.lacerta.web;

import java.io.IOException;

import javax.servlet.Filter;
import javax.servlet.FilterChain;
import javax.servlet.FilterConfig;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
import javax.servlet.http.HttpServletRequest;

public class RealIPFilter implements Filter {

        public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain) throws IOException, ServletException {
                if (request instanceof HttpServletRequest) {
                        chain.doFilter(new RealIPRequestWrapper((HttpServletRequest)request), response);
                } else {
                        chain.doFilter(request, response);
                }
        }

        @Override
        public void destroy() {
        }

        @Override
        public void init(FilterConfig arg0) throws ServletException {
        }
}