/*
* Copyright 2016 Red Hat, Inc. and/or its affiliates
* and other contributors as indicated by the @author tags.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.keycloak.services.util;
import org.jboss.resteasy.spi.HttpResponse;
import org.jboss.resteasy.spi.ResteasyProviderFactory;
import org.keycloak.Config;
import javax.ws.rs.core.CacheControl;
/**
* @author <a href="mailto:sthorger@redhat.com">Stian Thorgersen</a>
*/
public class CacheControlUtil {
public static void noBackButtonCacheControlHeader() {
HttpResponse response = ResteasyProviderFactory.getContextData(HttpResponse.class);
response.getOutputHeaders().putSingle("Cache-Control", "no-store, must-revalidate, max-age=0");
}
public static CacheControl getDefaultCacheControl() {
CacheControl cacheControl = new CacheControl();
cacheControl.setNoTransform(false);
Integer maxAge = Config.scope("theme").getInt("staticMaxAge");
if (maxAge != null && maxAge > 0) {
cacheControl.setMaxAge(maxAge);
} else {
cacheControl.setNoCache(true);
}
return cacheControl;
}
public static CacheControl noCache() {
CacheControl cacheControl = new CacheControl();
cacheControl.setMustRevalidate(true);
cacheControl.setNoCache(true);
cacheControl.setNoStore(true);
return cacheControl;
}
}