/*
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* CDDL HEADER START
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*
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* The contents of this file are subject to the terms of the
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* Common Development and Distribution License, Version 1.0 only
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* (the "License"). You may not use this file except in compliance
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* with the License.
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*
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* You can obtain a copy of the license at legal-notices/CDDLv1_0.txt
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* or http://forgerock.org/license/CDDLv1.0.html.
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* See the License for the specific language governing permissions
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* and limitations under the License.
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*
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* When distributing Covered Code, include this CDDL HEADER in each
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* file and include the License file at legal-notices/CDDLv1_0.txt.
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* If applicable, add the following below this CDDL HEADER, with the
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* fields enclosed by brackets "[]" replaced with your own identifying
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* information:
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* Portions Copyright [yyyy] [name of copyright owner]
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*
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* CDDL HEADER END
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*
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*
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* Copyright 2010 Sun Microsystems, Inc.
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* Portions copyright 2011-2013 ForgeRock AS
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*/
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package org.forgerock.opendj.ldap.requests;
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import static com.forgerock.opendj.util.StaticUtils.copyOfBytes;
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import static com.forgerock.opendj.util.StaticUtils.getExceptionMessage;
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import static com.forgerock.opendj.util.StaticUtils.joinCollection;
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import static org.forgerock.opendj.ldap.CoreMessages.ERR_LDAPAUTH_GSSAPI_LOCAL_AUTHENTICATION_FAILED;
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import static org.forgerock.opendj.ldap.CoreMessages.ERR_SASL_CONTEXT_CREATE_ERROR;
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import static org.forgerock.opendj.ldap.CoreMessages.ERR_SASL_PROTOCOL_ERROR;
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import static org.forgerock.opendj.ldap.ErrorResultException.newErrorResult;
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import java.security.PrivilegedActionException;
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import java.security.PrivilegedExceptionAction;
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import java.util.HashMap;
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import java.util.LinkedHashMap;
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import java.util.LinkedList;
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import java.util.List;
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import java.util.Map;
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import javax.security.auth.Subject;
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import javax.security.auth.login.LoginException;
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import javax.security.sasl.Sasl;
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import javax.security.sasl.SaslClient;
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import javax.security.sasl.SaslException;
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import org.forgerock.i18n.LocalizableMessage;
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import org.forgerock.opendj.ldap.ByteString;
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import org.forgerock.opendj.ldap.ConnectionSecurityLayer;
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import org.forgerock.opendj.ldap.ErrorResultException;
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import org.forgerock.opendj.ldap.ResultCode;
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import org.forgerock.opendj.ldap.responses.BindResult;
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import org.forgerock.opendj.ldap.responses.Responses;
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import com.forgerock.opendj.util.StaticUtils;
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import com.forgerock.opendj.util.Validator;
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import com.sun.security.auth.callback.TextCallbackHandler;
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import com.sun.security.auth.module.Krb5LoginModule;
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/**
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* GSSAPI SASL bind request implementation.
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*/
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@SuppressWarnings("restriction")
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final class GSSAPISASLBindRequestImpl extends AbstractSASLBindRequest<GSSAPISASLBindRequest>
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implements GSSAPISASLBindRequest {
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private final static class Client extends SASLBindClientImpl {
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private static Subject kerberos5Login(final String authenticationID,
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final ByteString password, final String realm, final String kdc)
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throws ErrorResultException {
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if (authenticationID == null) {
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// FIXME: I18N need to have a better error message.
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// FIXME: Is this the best result code?
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throw ErrorResultException.newErrorResult(Responses.newResult(
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ResultCode.CLIENT_SIDE_LOCAL_ERROR).setDiagnosticMessage(
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"No authentication ID specified for GSSAPI SASL authentication"));
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}
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if (password == null) {
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// FIXME: I18N need to have a better error message.
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// FIXME: Is this the best result code?
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throw ErrorResultException.newErrorResult(Responses.newResult(
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ResultCode.CLIENT_SIDE_LOCAL_ERROR).setDiagnosticMessage(
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"No password specified for GSSAPI SASL authentication"));
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}
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final Map<String, Object> state = new HashMap<String, Object>();
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state.put("javax.security.auth.login.name", authenticationID);
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state.put("javax.security.auth.login.password", password.toString().toCharArray());
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state.put("javax.security.auth.useSubjectCredsOnly", "true");
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state.put("java.security.krb5.realm", realm);
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state.put("java.security.krb5.kdc", kdc);
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final Map<String, Object> options = new HashMap<String, Object>();
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options.put("tryFirstPass", "true");
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options.put("useTicketCache", "true");
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options.put("doNotPrompt", "true");
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options.put("storePass", "false");
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options.put("forwardable", "true");
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final Subject subject = new Subject();
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final Krb5LoginModule login = new Krb5LoginModule();
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login.initialize(subject, new TextCallbackHandler(), state, options);
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try {
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if (login.login()) {
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login.commit();
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}
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} catch (final LoginException e) {
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// FIXME: Is this the best result code?
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final LocalizableMessage message =
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ERR_LDAPAUTH_GSSAPI_LOCAL_AUTHENTICATION_FAILED.get(StaticUtils
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.getExceptionMessage(e));
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throw ErrorResultException.newErrorResult(Responses.newResult(
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ResultCode.CLIENT_SIDE_LOCAL_ERROR)
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.setDiagnosticMessage(message.toString()).setCause(e));
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}
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return subject;
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}
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private final String authorizationID;
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private final PrivilegedExceptionAction<Boolean> evaluateAction =
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new PrivilegedExceptionAction<Boolean>() {
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@Override
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public Boolean run() throws ErrorResultException {
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if (saslClient.isComplete()) {
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return true;
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}
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try {
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setNextSASLCredentials(saslClient.evaluateChallenge(lastResult
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.getServerSASLCredentials() == null ? new byte[0] : lastResult
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.getServerSASLCredentials().toByteArray()));
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return saslClient.isComplete();
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} catch (final SaslException e) {
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// FIXME: I18N need to have a better error message.
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// FIXME: Is this the best result code?
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throw ErrorResultException.newErrorResult(Responses.newResult(
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ResultCode.CLIENT_SIDE_LOCAL_ERROR).setDiagnosticMessage(
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"An error occurred during multi-stage authentication")
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.setCause(e));
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}
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}
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};
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private BindResult lastResult;
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private final SaslClient saslClient;
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private final Subject subject;
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private Client(final GSSAPISASLBindRequestImpl initialBindRequest, final String serverName)
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throws ErrorResultException {
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super(initialBindRequest);
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this.authorizationID = initialBindRequest.getAuthorizationID();
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if (initialBindRequest.getSubject() != null) {
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this.subject = initialBindRequest.getSubject();
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} else {
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this.subject =
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kerberos5Login(initialBindRequest.getAuthenticationID(), ByteString
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.wrap(initialBindRequest.getPassword()), initialBindRequest
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.getRealm(), initialBindRequest.getKDCAddress());
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}
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try {
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this.saslClient =
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Subject.doAs(subject, new PrivilegedExceptionAction<SaslClient>() {
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@Override
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public SaslClient run() throws ErrorResultException {
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/*
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* Create property map containing all the
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* parameters.
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*/
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final Map<String, String> props = new HashMap<String, String>();
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final List<String> qopValues = initialBindRequest.getQOPs();
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if (!qopValues.isEmpty()) {
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props.put(Sasl.QOP, joinCollection(qopValues, ","));
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}
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final Boolean serverAuth = initialBindRequest.isServerAuth();
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if (serverAuth != null) {
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props.put(Sasl.SERVER_AUTH, String.valueOf(serverAuth));
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}
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Integer size = initialBindRequest.getMaxReceiveBufferSize();
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if (size != null) {
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props.put(Sasl.MAX_BUFFER, String.valueOf(size));
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}
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size = initialBindRequest.getMaxSendBufferSize();
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if (size != null) {
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props.put("javax.security.sasl.sendmaxbuffer", String
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.valueOf(size));
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}
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for (final Map.Entry<String, String> e : initialBindRequest
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.getAdditionalAuthParams().entrySet()) {
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props.put(e.getKey(), e.getValue());
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}
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try {
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final SaslClient saslClient =
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Sasl.createSaslClient(
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new String[] { SASL_MECHANISM_NAME },
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authorizationID, SASL_DEFAULT_PROTOCOL,
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serverName, props, Client.this);
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if (saslClient.hasInitialResponse()) {
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setNextSASLCredentials(saslClient
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.evaluateChallenge(new byte[0]));
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} else {
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setNextSASLCredentials((ByteString) null);
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}
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return saslClient;
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} catch (final SaslException e) {
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throw newErrorResult(ResultCode.CLIENT_SIDE_LOCAL_ERROR, e);
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}
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}
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});
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} catch (final PrivilegedActionException e) {
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if (e.getCause() instanceof ErrorResultException) {
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throw (ErrorResultException) e.getCause();
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} else {
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// This should not happen. Must be a bug.
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final LocalizableMessage msg =
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ERR_SASL_CONTEXT_CREATE_ERROR.get(SASL_MECHANISM_NAME,
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getExceptionMessage(e));
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throw newErrorResult(ResultCode.CLIENT_SIDE_LOCAL_ERROR, msg.toString(), e);
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}
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}
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}
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@Override
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public void dispose() {
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try {
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saslClient.dispose();
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} catch (final SaslException ignored) {
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// Ignore the SASL exception.
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}
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}
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@Override
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public boolean evaluateResult(final BindResult result) throws ErrorResultException {
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this.lastResult = result;
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try {
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return Subject.doAs(subject, evaluateAction);
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} catch (final PrivilegedActionException e) {
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if (e.getCause() instanceof ErrorResultException) {
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throw (ErrorResultException) e.getCause();
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} else {
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// This should not happen. Must be a bug.
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final LocalizableMessage msg =
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ERR_SASL_PROTOCOL_ERROR
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.get(SASL_MECHANISM_NAME, getExceptionMessage(e));
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throw newErrorResult(ResultCode.CLIENT_SIDE_LOCAL_ERROR, msg.toString(), e);
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}
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}
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}
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@Override
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public ConnectionSecurityLayer getConnectionSecurityLayer() {
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final String qop = (String) saslClient.getNegotiatedProperty(Sasl.QOP);
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if (qop.equalsIgnoreCase("auth-int") || qop.equalsIgnoreCase("auth-conf")) {
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return this;
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} else {
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return null;
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}
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}
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@Override
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public byte[] unwrap(final byte[] incoming, final int offset, final int len)
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throws ErrorResultException {
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try {
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return saslClient.unwrap(incoming, offset, len);
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} catch (final SaslException e) {
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final LocalizableMessage msg =
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ERR_SASL_PROTOCOL_ERROR.get(SASL_MECHANISM_NAME, getExceptionMessage(e));
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throw newErrorResult(ResultCode.CLIENT_SIDE_DECODING_ERROR, msg.toString(), e);
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}
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}
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@Override
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public byte[] wrap(final byte[] outgoing, final int offset, final int len)
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throws ErrorResultException {
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try {
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return saslClient.wrap(outgoing, offset, len);
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} catch (final SaslException e) {
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final LocalizableMessage msg =
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ERR_SASL_PROTOCOL_ERROR.get(SASL_MECHANISM_NAME, getExceptionMessage(e));
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throw newErrorResult(ResultCode.CLIENT_SIDE_ENCODING_ERROR, msg.toString(), e);
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}
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}
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}
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private final Map<String, String> additionalAuthParams = new LinkedHashMap<String, String>();
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// Ignored if subject is non-null.
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private String authenticationID = null;
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// Optional authorization ID.
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private String authorizationID = null;
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private String kdcAddress = null;
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private Integer maxReceiveBufferSize = null;
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private Integer maxSendBufferSize = null;
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private byte[] password = null;
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private final List<String> qopValues = new LinkedList<String>();
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private String realm = null;
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// Don't use primitives for these so that we can distinguish between default
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// settings (null) and values set by the caller.
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private Boolean serverAuth = null;
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// If null then authenticationID and password must be present.
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private Subject subject = null;
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GSSAPISASLBindRequestImpl(final GSSAPISASLBindRequest gssapiSASLBindRequest) {
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super(gssapiSASLBindRequest);
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this.subject = gssapiSASLBindRequest.getSubject();
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this.authenticationID = gssapiSASLBindRequest.getAuthenticationID();
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this.password = copyOfBytes(gssapiSASLBindRequest.getPassword());
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this.realm = gssapiSASLBindRequest.getRealm();
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this.kdcAddress = gssapiSASLBindRequest.getKDCAddress();
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this.authorizationID = gssapiSASLBindRequest.getAuthorizationID();
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this.additionalAuthParams.putAll(gssapiSASLBindRequest.getAdditionalAuthParams());
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this.qopValues.addAll(gssapiSASLBindRequest.getQOPs());
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this.serverAuth = gssapiSASLBindRequest.isServerAuth();
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this.maxReceiveBufferSize = gssapiSASLBindRequest.getMaxReceiveBufferSize();
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this.maxSendBufferSize = gssapiSASLBindRequest.getMaxSendBufferSize();
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}
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GSSAPISASLBindRequestImpl(final String authenticationID, final byte[] password) {
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Validator.ensureNotNull(authenticationID, password);
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this.authenticationID = authenticationID;
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this.password = password;
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}
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GSSAPISASLBindRequestImpl(final Subject subject) {
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Validator.ensureNotNull(subject);
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this.subject = subject;
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}
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@Override
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public GSSAPISASLBindRequest addAdditionalAuthParam(final String name, final String value) {
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Validator.ensureNotNull(name, value);
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additionalAuthParams.put(name, value);
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return this;
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}
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@Override
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public GSSAPISASLBindRequest addQOP(final String... qopValues) {
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for (final String qopValue : qopValues) {
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this.qopValues.add(Validator.ensureNotNull(qopValue));
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}
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return this;
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}
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@Override
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public BindClient createBindClient(final String serverName) throws ErrorResultException {
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return new Client(this, serverName);
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}
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@Override
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public Map<String, String> getAdditionalAuthParams() {
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return additionalAuthParams;
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}
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@Override
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public String getAuthenticationID() {
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return authenticationID;
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}
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@Override
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public String getAuthorizationID() {
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return authorizationID;
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}
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@Override
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public String getKDCAddress() {
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return kdcAddress;
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}
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@Override
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public int getMaxReceiveBufferSize() {
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return maxReceiveBufferSize == null ? 65536 : maxReceiveBufferSize;
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}
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@Override
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public int getMaxSendBufferSize() {
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return maxSendBufferSize == null ? 65536 : maxSendBufferSize;
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}
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@Override
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public byte[] getPassword() {
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return password;
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}
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@Override
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public List<String> getQOPs() {
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return qopValues;
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}
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@Override
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public String getRealm() {
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return realm;
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}
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@Override
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public String getSASLMechanism() {
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return SASL_MECHANISM_NAME;
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}
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@Override
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public Subject getSubject() {
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return subject;
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}
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@Override
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public boolean isServerAuth() {
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return serverAuth == null ? false : serverAuth;
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}
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@Override
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public GSSAPISASLBindRequest setAuthenticationID(final String authenticationID) {
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Validator.ensureNotNull(authenticationID);
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this.authenticationID = authenticationID;
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return this;
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}
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@Override
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public GSSAPISASLBindRequest setAuthorizationID(final String authorizationID) {
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this.authorizationID = authorizationID;
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return this;
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}
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@Override
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public GSSAPISASLBindRequest setKDCAddress(final String address) {
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this.kdcAddress = address;
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return this;
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}
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@Override
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public GSSAPISASLBindRequest setMaxReceiveBufferSize(final int size) {
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maxReceiveBufferSize = size;
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return this;
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}
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@Override
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public GSSAPISASLBindRequest setMaxSendBufferSize(final int size) {
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maxSendBufferSize = size;
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return this;
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}
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@Override
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public GSSAPISASLBindRequest setPassword(final byte[] password) {
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Validator.ensureNotNull(password);
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this.password = password;
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return this;
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}
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@Override
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public GSSAPISASLBindRequest setPassword(final char[] password) {
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Validator.ensureNotNull(password);
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this.password = StaticUtils.getBytes(password);
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return this;
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}
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@Override
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public GSSAPISASLBindRequest setRealm(final String realm) {
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this.realm = realm;
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return this;
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}
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@Override
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public GSSAPISASLBindRequest setServerAuth(final boolean serverAuth) {
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this.serverAuth = serverAuth;
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return this;
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}
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@Override
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public GSSAPISASLBindRequest setSubject(final Subject subject) {
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this.subject = subject;
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return this;
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}
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@Override
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public String toString() {
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final StringBuilder builder = new StringBuilder();
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builder.append("GSSAPISASLBindRequest(bindDN=");
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builder.append(getName());
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builder.append(", authentication=SASL");
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builder.append(", saslMechanism=");
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builder.append(getSASLMechanism());
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if (subject != null) {
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builder.append(", subject=");
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builder.append(subject);
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} else {
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builder.append(", authenticationID=");
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builder.append(authenticationID);
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builder.append(", authorizationID=");
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builder.append(authorizationID);
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builder.append(", realm=");
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builder.append(realm);
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}
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builder.append(", controls=");
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builder.append(getControls());
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builder.append(")");
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return builder.toString();
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}
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}
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