/*
* JBoss, Home of Professional Open Source.
* Copyright 2011, 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.management.security;
import static org.jboss.as.controller.descriptions.ModelDescriptionConstants.PASSWORD;
import static org.jboss.as.controller.descriptions.ModelDescriptionConstants.USER;
import static org.jboss.as.domain.management.DomainManagementMessages.MESSAGES;
import static org.jboss.as.domain.management.RealmConfigurationConstants.DIGEST_PLAIN_TEXT;
import java.io.IOException;
import java.util.Collections;
import java.util.LinkedList;
import java.util.List;
import java.util.Map;
import java.util.Set;
import javax.security.auth.callback.Callback;
import javax.security.auth.callback.CallbackHandler;
import javax.security.auth.callback.NameCallback;
import javax.security.auth.callback.PasswordCallback;
import javax.security.auth.callback.UnsupportedCallbackException;
import javax.security.sasl.AuthorizeCallback;
import javax.security.sasl.RealmCallback;
import org.jboss.as.domain.management.AuthenticationMechanism;
import org.jboss.dmr.ModelNode;
import org.jboss.msc.service.Service;
import org.jboss.msc.service.StartContext;
import org.jboss.msc.service.StartException;
import org.jboss.msc.service.StopContext;
/**
* A CallbackHandler for users defined within the domain mode.
*
* @author <a href="mailto:darran.lofthouse@jboss.com">Darran Lofthouse</a>
*/
public class UserDomainCallbackHandler implements Service<CallbackHandlerService>, CallbackHandlerService, CallbackHandler {
public static final String SERVICE_SUFFIX = "users";
private final String realm;
private volatile ModelNode userDomain;
public UserDomainCallbackHandler(String realm, ModelNode userDomain) {
this.realm = realm;
setUserDomain(userDomain);
}
void setUserDomain(final ModelNode userDomain) {
this.userDomain = userDomain == null || !userDomain.isDefined() ? new ModelNode().setEmptyObject() : userDomain.clone();
}
/*
* CallbackHandlerService Methods
*/
public AuthenticationMechanism getPreferredMechanism() {
return AuthenticationMechanism.DIGEST;
}
public Set<AuthenticationMechanism> getSupplementaryMechanisms() {
return Collections.singleton(AuthenticationMechanism.PLAIN);
}
public Map<String, String> getConfigurationOptions() {
return Collections.singletonMap(DIGEST_PLAIN_TEXT, Boolean.TRUE.toString());
}
public boolean isReady() {
return true;
}
public CallbackHandler getCallbackHandler(Map<String, Object> sharedState) {
return this;
}
/*
* Service Methods
*/
public void start(StartContext context) throws StartException {
}
public void stop(StopContext context) {
}
public UserDomainCallbackHandler getValue() throws IllegalStateException, IllegalArgumentException {
return this;
}
/*
* CallbackHandler Method
*/
public void handle(Callback[] callbacks) throws IOException, UnsupportedCallbackException {
final ModelNode userMap = this.userDomain;
List<Callback> toRespondTo = new LinkedList<Callback>();
String userName = null;
ModelNode user = null;
// A single pass may be sufficient but by using a two pass approach the Callbackhandler will not
// fail if an unexpected order is encountered.
// First Pass - is to double check no unsupported callbacks and to retrieve
// information from the callbacks passing in information.
for (Callback current : callbacks) {
if (current instanceof AuthorizeCallback) {
toRespondTo.add(current);
} else if (current instanceof NameCallback) {
NameCallback nameCallback = (NameCallback) current;
userName = nameCallback.getDefaultName();
if (userMap.get(USER).hasDefined(userName)) {
user = userMap.get(USER, userName);
}
} else if (current instanceof PasswordCallback) {
toRespondTo.add(current);
} else if (current instanceof RealmCallback) {
String realm = ((RealmCallback) current).getDefaultText();
if (this.realm.equals(realm) == false) {
// TODO - Check if this needs a real error or of just an unexpected internal error.
throw MESSAGES.invalidRealm(realm, this.realm);
}
} else {
throw new UnsupportedCallbackException(current);
}
}
// Second Pass - Now iterate the Callback(s) requiring a response.
for (Callback current : toRespondTo) {
if (current instanceof AuthorizeCallback) {
AuthorizeCallback authorizeCallback = (AuthorizeCallback) current;
// Don't support impersonating another identity
authorizeCallback.setAuthorized(authorizeCallback.getAuthenticationID().equals(authorizeCallback.getAuthorizationID()));
} else if (current instanceof PasswordCallback) {
if (user == null) {
throw new UserNotFoundException(userName);
}
String password = user.require(PASSWORD).asString();
((PasswordCallback) current).setPassword(password.toCharArray());
}
}
}
}