/*
* 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.x509.cache;
import java.security.cert.X509Certificate;
import net.sf.ehcache.CacheException;
import net.sf.ehcache.Ehcache;
import net.sf.ehcache.Element;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.springframework.beans.factory.InitializingBean;
import org.springframework.dao.DataRetrievalFailureException;
import org.springframework.security.core.userdetails.UserDetails;
import org.springframework.util.Assert;
/**
* Caches {@code User} objects using a Spring IoC defined <a
* href="http://ehcache.sourceforge.net">EHCACHE</a>.
* <p>Migrated from Spring Security 2 since it has been removed in Spring Security 3.</p>
*
* @author Luke Taylor
* @author Ben Alex
*/
public class EhCacheBasedX509UserCache implements X509UserCache, InitializingBean {
//~ Static fields/initializers =====================================================================================
private static final Log logger = LogFactory.getLog(EhCacheBasedX509UserCache.class);
//~ Instance fields ================================================================================================
private Ehcache cache;
//~ Methods ========================================================================================================
@Override
public void afterPropertiesSet() throws Exception {
Assert.notNull(cache, "cache is mandatory");
}
@Override
public UserDetails getUserFromCache(X509Certificate userCert) {
Element element = null;
try {
element = cache.get(userCert);
} catch (CacheException cacheException) {
throw new DataRetrievalFailureException("Cache failure: " + cacheException.getMessage());
}
if (logger.isDebugEnabled()) {
String subjectDN = "unknown";
if ((userCert != null) && (userCert.getSubjectDN() != null)) {
subjectDN = userCert.getSubjectDN().toString();
}
logger.debug("X.509 Cache hit. SubjectDN: " + subjectDN);
}
if (element == null) {
return null;
} else {
return (UserDetails) element.getObjectValue();
}
}
@Override
public void putUserInCache(X509Certificate userCert, UserDetails user) {
Element element = new Element(userCert, user);
if (logger.isDebugEnabled()) {
logger.debug("Cache put: " + userCert.getSubjectDN());
}
cache.put(element);
}
@Override
public void removeUserFromCache(X509Certificate userCert) {
if (logger.isDebugEnabled()) {
logger.debug("Cache remove: " + userCert.getSubjectDN());
}
cache.remove(userCert);
}
public void setCache(Ehcache cache) {
this.cache = cache;
}
}