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package org.glassfish.security.services.impl;
import java.security.Principal;
import java.util.Set;
import java.util.logging.Logger;
import javax.inject.Singleton;
import javax.security.auth.Subject;
import javax.security.auth.login.LoginException;
import org.glassfish.security.common.Group;
import org.glassfish.security.common.PrincipalImpl;
import org.glassfish.security.services.api.authentication.ImpersonationService;
import org.glassfish.security.services.common.Secure;
import org.jvnet.hk2.annotations.Service;
/**
* The Impersonation Service Implementation.
*
* @author jazheng
*/
@Service(name="impersonationService")
@Singleton
@Secure(accessPermissionName = "security/service/impersonation/simple")
public class ImpersonationServiceImpl implements ImpersonationService {
static final Logger LOG = Logger
.getLogger(ImpersonationServiceImpl.class.getName());
@Override
public Subject impersonate(String user, String[] groups, Subject subject,
boolean virtual) throws LoginException {
// Use the supplied Subject or create a new Subject
final Subject _subject =
(subject != null)? subject: new Subject();
if (user == null || user.isEmpty()) {
return _subject;
}
// TODO - Add support for virtual = false after IdentityManager
// is available in open source
if (!virtual) {
throw new UnsupportedOperationException(
"Use of non-virtual parameter is not supported");
} else {
// Build the Subject
Set<Principal> principals = _subject.getPrincipals();
principals.add(new PrincipalImpl(user));
if (groups != null) {
for (String group: groups) {
principals.add(new Group(group));
}
}
}
// Return the impersonated Subject
return _subject;
}
}