/**
* This file is part of Graylog.
*
* Graylog is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* Graylog is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with Graylog. If not, see <http://www.gnu.org/licenses/>.
*/
package org.graylog2.shared.rest;
import javax.ws.rs.container.ContainerRequestContext;
import javax.ws.rs.container.ContainerResponseContext;
import javax.ws.rs.container.ContainerResponseFilter;
import java.io.IOException;
public class XHRFilter implements ContainerResponseFilter {
@Override
public void filter(ContainerRequestContext requestContext, ContainerResponseContext responseContext) throws IOException {
// Add no-cache to XMLHttpRequests, to avoid browsers caching results
String requestedWith = requestContext.getHeaders().getFirst("X-Requested-With");
if ("XMLHttpRequest".equals(requestedWith)) {
responseContext.getHeaders().add("Cache-Control", "no-cache");
}
}
}