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* JBoss, Home of Professional Open Source.
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* as indicated by the @author tags. See the copyright.txt file in the
* distribution for a full listing of individual contributors.
*
* This is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* This software is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/
package org.jboss.as.test.integration.ejb.container.interceptor.security;
import javax.ejb.EJBAccessException;
import javax.interceptor.AroundInvoke;
import javax.interceptor.InvocationContext;
import javax.resource.spi.IllegalStateException;
import javax.security.auth.Subject;
import java.security.Principal;
import java.util.Map;
import org.jboss.as.core.security.RealmUser;
import org.jboss.as.core.security.SubjectUserInfo;
import org.jboss.as.security.remoting.RemotingContext;
import org.jboss.logging.Logger;
import org.jboss.remoting3.Connection;
import org.jboss.remoting3.security.UserInfo;
import org.jboss.security.SecurityContext;
import org.jboss.security.SecurityContextAssociation;
import org.jboss.security.SecurityContextFactory;
import org.jboss.security.SimplePrincipal;
/**
* The server side security interceptor responsible for handling any security identity propagated from the client.
*
* @author <a href="mailto:darran.lofthouse@jboss.com">Darran Lofthouse</a>
* @author Josef Cacek
*/
public class ServerSecurityInterceptor {
private static final Logger LOGGER = Logger.getLogger(ServerSecurityInterceptor.class);
static final String DELEGATED_USER_KEY = ServerSecurityInterceptor.class.getName() + ".DelegationUser";
@AroundInvoke
public Object aroundInvoke(final InvocationContext invocationContext) throws Exception {
Principal desiredUser = null;
RealmUser connectionUser = null;
Map<String, Object> contextData = invocationContext.getContextData();
if (contextData.containsKey(DELEGATED_USER_KEY)) {
desiredUser = new SimplePrincipal((String) contextData.get(DELEGATED_USER_KEY));
Connection con = RemotingContext.getConnection();
if (con != null) {
UserInfo userInfo = con.getUserInfo();
if (userInfo instanceof SubjectUserInfo) {
SubjectUserInfo sinfo = (SubjectUserInfo) userInfo;
for (Principal current : sinfo.getPrincipals()) {
if (current instanceof RealmUser) {
connectionUser = (RealmUser) current;
break;
}
}
}
} else {
throw new IllegalStateException("Delegation user requested but no user on connection found.");
}
}
SecurityContext cachedSecurityContext = null;
boolean contextSet = false;
try {
if (desiredUser != null && connectionUser != null
&& (desiredUser.getName().equals(connectionUser.getName()) == false)) {
try {
// The final part of this check is to verify that the change does actually indicate a change in user.
// We have been requested to switch user and have successfully identified the user from the connection
// so now we attempt the switch.
cachedSecurityContext = SecurityContextAssociation.getSecurityContext();
final SecurityContext nextContext = SecurityContextFactory.createSecurityContext(desiredUser,
new CurrentUserCredential(connectionUser.getName()), new Subject(), "fooSecurityDomain");
SecurityContextAssociation.setSecurityContext(nextContext);
// keep track that we switched the security context
contextSet = true;
RemotingContext.clear();
} catch (Exception e) {
LOGGER.error("Failed to switch security context for user", e);
// Don't propagate the exception stacktrace back to the client for security reasons
throw new EJBAccessException("Unable to attempt switching of user.");
}
}
return invocationContext.proceed();
} finally {
// switch back to original security context
if (contextSet) {
SecurityContextAssociation.setSecurityContext(cachedSecurityContext);
}
}
}
}