/*
* Copyright 2005-2014 the original author or authors.
*
* 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.springframework.ws.soap.security.xwss.callback.jaas;
import java.security.cert.X509Certificate;
import javax.security.auth.Subject;
import javax.security.auth.callback.Callback;
import javax.security.auth.callback.UnsupportedCallbackException;
import javax.security.auth.login.LoginContext;
import javax.security.auth.login.LoginException;
import com.sun.xml.wss.impl.callback.CertificateValidationCallback;
/**
* Provides basic support for integrating with JAAS and certificates. Requires the {@code loginContextName} to be
* set.Requires a {@code LoginContext} which handles {@code X500Principal}s.
*
* <p>This class only handles {@code CertificateValidationCallback}s, and throws an
* {@code UnsupportedCallbackException} for others.
*
* @author Arjen Poutsma
* @see javax.security.auth.x500.X500Principal
* @see #setLoginContextName(String)
* @since 1.0.0
*/
public class JaasCertificateValidationCallbackHandler extends AbstractJaasValidationCallbackHandler {
/**
* Handles {@code CertificateValidationCallback}s, and throws an {@code UnsupportedCallbackException} for
* others
*
* @throws UnsupportedCallbackException when the callback is not supported
*/
@Override
protected final void handleInternal(Callback callback) throws UnsupportedCallbackException {
if (callback instanceof CertificateValidationCallback) {
((CertificateValidationCallback) callback).setValidator(new JaasCertificateValidator());
}
else {
throw new UnsupportedCallbackException(callback);
}
}
private class JaasCertificateValidator implements CertificateValidationCallback.CertificateValidator {
@Override
public boolean validate(X509Certificate certificate)
throws CertificateValidationCallback.CertificateValidationException {
Subject subject = new Subject();
subject.getPrincipals().add(certificate.getSubjectX500Principal());
LoginContext loginContext;
try {
loginContext = new LoginContext(getLoginContextName(), subject);
}
catch (LoginException ex) {
throw new CertificateValidationCallback.CertificateValidationException(ex);
}
catch (SecurityException ex) {
throw new CertificateValidationCallback.CertificateValidationException(ex);
}
try {
loginContext.login();
Subject subj = loginContext.getSubject();
if (!subj.getPrincipals().isEmpty()) {
if (logger.isDebugEnabled()) {
logger.debug("Authentication request for certificate with DN [" +
certificate.getSubjectX500Principal().getName() + "] successful");
}
return true;
}
else {
if (logger.isDebugEnabled()) {
logger.debug("Authentication request for certificate with DN [" +
certificate.getSubjectX500Principal().getName() + "] failed");
}
return false;
}
}
catch (LoginException ex) {
if (logger.isDebugEnabled()) {
logger.debug("Authentication request for certificate with DN [" +
certificate.getSubjectX500Principal().getName() + "] failed");
}
return false;
}
}
}
}