/*
* (C) Copyright 2014 Nuxeo SA (http://nuxeo.com/) and others.
*
* 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.
*
* Contributors:
* Nelson Silva <nelson.silva@inevo.pt>
*/
package org.nuxeo.ecm.platform.auth.saml.web;
import java.io.IOException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.nuxeo.ecm.platform.auth.saml.SAMLConfiguration;
import org.nuxeo.ecm.platform.ui.web.auth.LoginScreenHelper;
import org.nuxeo.ecm.platform.web.common.vh.VirtualHostHelper;
import org.opensaml.saml2.metadata.EntityDescriptor;
import org.opensaml.xml.Configuration;
import org.opensaml.xml.io.Marshaller;
import org.opensaml.xml.io.MarshallingException;
import org.opensaml.xml.util.XMLHelper;
import org.w3c.dom.Element;
/**
* Servlet that returns local SP metadata for configuring IdPs.
*
* @since 6.0
*/
public class MetadataServlet extends HttpServlet {
protected static final Log log = LogFactory.getLog(MetadataServlet.class);
@Override
public void doGet(HttpServletRequest request, HttpServletResponse response) throws IOException {
String baseURL = VirtualHostHelper.getBaseURL(request);
baseURL += (baseURL.endsWith("/") ? "" : "/") + LoginScreenHelper.getStartupPagePath();
EntityDescriptor descriptor = SAMLConfiguration.getEntityDescriptor(baseURL);
try {
Marshaller marshaller = Configuration.getMarshallerFactory().getMarshaller(descriptor);
if (marshaller == null) {
log.error("Unable to marshall message, no marshaller registered for message object: "
+ descriptor.getElementQName());
}
Element dom = marshaller.marshall(descriptor);
XMLHelper.writeNode(dom, response.getWriter());
} catch (MarshallingException e) {
log.error("Unable to write metadata.");
}
}
}