/**
* 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.sts.token.delegation;
import java.util.List;
import java.util.logging.Level;
import java.util.logging.Logger;
import org.w3c.dom.Element;
import org.apache.cxf.common.logging.LogUtils;
import org.apache.cxf.sts.request.ReceivedToken;
import org.apache.wss4j.common.ext.WSSecurityException;
import org.apache.wss4j.common.saml.SamlAssertionWrapper;
import org.apache.wss4j.common.saml.builder.SAML1Constants;
import org.apache.wss4j.common.saml.builder.SAML2Constants;
/**
* This TokenDelegationHandler implementation extends the Default implementation to allow SAML
* Tokens with HolderOfKey Subject Confirmation.
*/
public class HOKDelegationHandler extends SAMLDelegationHandler {
private static final Logger LOG =
LogUtils.getL7dLogger(HOKDelegationHandler.class);
/**
* Is Delegation allowed for a particular token
*/
@Override
protected boolean isDelegationAllowed(
ReceivedToken receivedToken, String appliesToAddress
) {
Element validateTargetElement = (Element)receivedToken.getToken();
try {
SamlAssertionWrapper assertion = new SamlAssertionWrapper(validateTargetElement);
for (String confirmationMethod : assertion.getConfirmationMethods()) {
if (!(SAML1Constants.CONF_BEARER.equals(confirmationMethod)
|| SAML1Constants.CONF_HOLDER_KEY.equals(confirmationMethod)
|| SAML2Constants.CONF_BEARER.equals(confirmationMethod)
|| SAML2Constants.CONF_HOLDER_KEY.equals(confirmationMethod))) {
return false;
}
}
if (isCheckAudienceRestriction() && appliesToAddress != null) {
List<String> addresses = getAudienceRestrictions(assertion);
if (!(addresses.isEmpty() || addresses.contains(appliesToAddress))) {
return false;
}
}
} catch (WSSecurityException ex) {
LOG.log(Level.WARNING, "Error in ascertaining whether delegation is allowed", ex);
return false;
}
return true;
}
}