/*
* JBoss, Home of Professional Open Source.
* Copyright 2012, Red Hat, Inc., and individual contributors
* 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.domain.http.server.security;
import java.io.IOException;
import java.security.Principal;
import java.util.Collection;
import java.util.Set;
import javax.security.auth.Subject;
import javax.security.auth.callback.Callback;
import javax.security.auth.callback.UnsupportedCallbackException;
import org.jboss.as.controller.security.SubjectUserInfo;
import org.jboss.as.domain.management.SecurityRealm;
import org.jboss.as.domain.management.security.DomainCallbackHandler;
import org.jboss.as.domain.management.security.RealmUser;
import org.jboss.as.domain.management.security.SubjectCallback;
import org.jboss.as.domain.management.security.SubjectSupplemental;
/**
* The AuthenticationProvider to make available the AuthorizingCallbackHandler to the the authenticators.
*
* @author <a href="mailto:darran.lofthouse@jboss.com">Darran Lofthouse</a>
*/
public class AuthenticationProvider {
private final SecurityRealm securityRealm;
public AuthenticationProvider(final SecurityRealm securityRealm) {
this.securityRealm = securityRealm;
}
AuthorizingCallbackHandler getCallbackHandler() {
final DomainCallbackHandler callbackHandler = securityRealm.getCallbackHandler();
return new AuthorizingCallbackHandler() {
Subject subject;
@Override
public Class<Callback>[] getSupportedCallbacks() {
return callbackHandler.getSupportedCallbacks();
}
@Override
public boolean isReady() {
return callbackHandler.isReady();
}
public void handle(Callback[] callbacks) throws IOException, UnsupportedCallbackException {
if (contains(SubjectCallback.class, callbackHandler.getSupportedCallbacks())) {
Callback[] newCallbacks = new Callback[callbacks.length + 1];
System.arraycopy(callbacks, 0, newCallbacks, 0, callbacks.length);
SubjectCallback subjectCallBack = new SubjectCallback();
newCallbacks[newCallbacks.length - 1] = subjectCallBack;
callbackHandler.handle(newCallbacks);
subject = subjectCallBack.getSubject();
} else {
callbackHandler.handle(callbacks);
}
}
@Override
public SubjectUserInfo createSubjectUserInfo(Principal userPrincipal) throws IOException {
Subject subject = this.subject == null ? new Subject() : this.subject;
Collection<Principal> allPrincipals = subject.getPrincipals();
allPrincipals.add(userPrincipal);
allPrincipals.add(new RealmUser(securityRealm.getName(), userPrincipal.getName()));
SubjectSupplemental subjectSupplemental = securityRealm.getSubjectSupplemental();
if (subjectSupplemental != null) {
subjectSupplemental.supplementSubject(subject);
}
return new HttpSubjectUserInfo(subject);
}
};
}
private static boolean contains(Class clazz, Class<Callback>[] classes) {
for (Class<Callback> current : classes) {
if (current.equals(clazz)) {
return true;
}
}
return false;
}
private static class HttpSubjectUserInfo implements SubjectUserInfo {
private final String userName;
private final Subject subject;
private HttpSubjectUserInfo(Subject subject) {
this.subject = subject;
Set<RealmUser> users = subject.getPrincipals(RealmUser.class);
userName = users.isEmpty() ? null : users.iterator().next().getName();
}
public String getUserName() {
return userName;
}
public Collection<Principal> getPrincipals() {
return subject.getPrincipals();
}
public Subject getSubject() {
return subject;
}
}
}