edu.usu.sdl.openstorefront.common.util.NetworkUtil.java Source code

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Here is the source code for edu.usu.sdl.openstorefront.common.util.NetworkUtil.java

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package edu.usu.sdl.openstorefront.common.util;

import javax.servlet.http.HttpServletRequest;
import org.apache.commons.lang3.StringUtils;

/**
 *
 * @author dshurtleff
 */
public class NetworkUtil {

    /**
     * Get the correct client ip from a request
     *
     * @param request
     * @return client ip or N/A if not found
     */
    public static String getClientIp(HttpServletRequest request) {
        String clientIp = OpenStorefrontConstant.NOT_AVAILABLE;
        if (request != null) {
            clientIp = request.getRemoteAddr();

            //Check for header ip it may be forwarded by a proxy
            String clientIpFromHeader = request.getHeader("x-forwarded-for");
            if (StringUtils.isNotBlank(clientIpFromHeader)) {
                clientIp = clientIp + " Forward for: " + clientIpFromHeader;
            } else {
                clientIpFromHeader = request.getHeader("x-real-ip");
                if (StringUtils.isNotBlank(clientIpFromHeader)) {
                    clientIp = clientIp + " X-real IP: " + clientIpFromHeader;
                }
            }
        }
        return clientIp;
    }

}