/**
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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.apache.cxf.ws.security.policy.custom;
import javax.xml.namespace.QName;
import org.w3c.dom.Element;
import org.apache.cxf.Bus;
import org.apache.cxf.helpers.DOMUtils;
import org.apache.neethi.Assertion;
import org.apache.neethi.AssertionBuilderFactory;
import org.apache.neethi.Policy;
import org.apache.neethi.builders.AssertionBuilder;
import org.apache.wss4j.policy.SP11Constants;
import org.apache.wss4j.policy.SP13Constants;
import org.apache.wss4j.policy.SPConstants;
import org.apache.wss4j.policy.SPUtils;
import org.apache.wss4j.policy.model.AlgorithmSuite;
public class AlgorithmSuiteBuilder implements AssertionBuilder<Element> {
private Bus bus;
public AlgorithmSuiteBuilder(Bus bus) {
this.bus = bus;
}
@Override
public Assertion build(Element element, AssertionBuilderFactory factory) throws IllegalArgumentException {
final SPConstants.SPVersion spVersion = SPConstants.SPVersion.getSPVersion(element.getNamespaceURI());
final Element nestedPolicyElement = SPUtils.getFirstPolicyChildElement(element);
if (nestedPolicyElement == null) {
throw new IllegalArgumentException("sp:AlgorithmSuite must have an inner wsp:Policy element");
}
final Policy nestedPolicy = factory.getPolicyEngine().getPolicy(nestedPolicyElement);
AlgorithmSuiteLoader loader = bus.getExtension(AlgorithmSuiteLoader.class);
if (loader == null) {
loader = new DefaultAlgorithmSuiteLoader();
}
AlgorithmSuite algorithmSuite = loader.getAlgorithmSuite(bus, spVersion, nestedPolicy);
if (algorithmSuite == null || algorithmSuite.getAlgorithmSuiteType() == null) {
String algorithmSuiteName = null;
if (algorithmSuite != null) {
algorithmSuiteName = algorithmSuite.getFirstInvalidAlgorithmSuite();
}
if (algorithmSuiteName == null) {
algorithmSuiteName = DOMUtils.getFirstElement(nestedPolicyElement).getLocalName();
}
throw new IllegalArgumentException(
"Algorithm suite \"" + algorithmSuiteName + "\" is not registered"
);
}
algorithmSuite.setOptional(SPUtils.isOptional(element));
algorithmSuite.setIgnorable(SPUtils.isIgnorable(element));
return algorithmSuite;
}
@Override
public QName[] getKnownElements() {
return new QName[]{SP13Constants.ALGORITHM_SUITE, SP11Constants.ALGORITHM_SUITE};
}
}