/*
* 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.logging.Logger;
import org.jboss.resteasy.spi.HttpResponse;
import org.jboss.resteasy.spi.ResteasyProviderFactory;
import org.keycloak.models.KeycloakSession;
import org.keycloak.services.validation.Validation;
import org.keycloak.theme.Theme;
import org.keycloak.theme.ThemeProvider;
import java.io.IOException;
import java.util.Locale;
/**
* IE requires P3P header to allow loading cookies from iframes when domain differs from main page (see KEYCLOAK-2828 for more details)
*
* @author <a href="mailto:sthorger@redhat.com">Stian Thorgersen</a>
*/
public class P3PHelper {
private static final Logger logger = Logger.getLogger(P3PHelper.class);
public static void addP3PHeader(KeycloakSession session) {
try {
ThemeProvider themeProvider = session.getProvider(ThemeProvider.class, "extending");
Theme theme = themeProvider.getTheme(session.getContext().getRealm().getLoginTheme(), Theme.Type.LOGIN);
Locale locale = LocaleHelper.getLocaleFromCookie(session);
String p3pValue = theme.getMessages(locale).getProperty("p3pPolicy");
if (!Validation.isBlank(p3pValue)) {
HttpResponse response = ResteasyProviderFactory.getContextData(HttpResponse.class);
response.getOutputHeaders().putSingle("P3P", p3pValue);
}
} catch (IOException e) {
logger.error("Failed to set P3P header", e);
return;
}
}
}