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TEIID-3059: Adding support for kerberos token delegation for SOAP web…
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...tors/connector-ws/src/main/java/org/teiid/resource/adapter/ws/DelegateKerberosClient.java
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| /* | ||
| * JBoss, Home of Professional Open Source. | ||
| * See the COPYRIGHT.txt file distributed with this work for information | ||
| * regarding copyright ownership. Some portions may be licensed | ||
| * to Red Hat, Inc. under one or more contributor license agreements. | ||
| * | ||
| * This library 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 library 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 library; if not, write to the Free Software | ||
| * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA | ||
| * 02110-1301 USA. | ||
| */ | ||
| package org.teiid.resource.adapter.ws; | ||
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| import java.security.Principal; | ||
| import java.security.PrivilegedAction; | ||
| import java.util.Set; | ||
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| import javax.crypto.SecretKey; | ||
| import javax.security.auth.Subject; | ||
| import javax.security.auth.kerberos.KerberosTicket; | ||
| import javax.security.auth.login.LoginContext; | ||
| import javax.security.auth.login.LoginException; | ||
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| import org.apache.cxf.Bus; | ||
| import org.apache.cxf.helpers.DOMUtils; | ||
| import org.apache.cxf.ws.security.kerberos.KerberosClient; | ||
| import org.apache.cxf.ws.security.tokenstore.SecurityToken; | ||
| import org.apache.ws.security.WSConstants; | ||
| import org.apache.ws.security.WSSConfig; | ||
| import org.apache.ws.security.WSSecurityException; | ||
| import org.apache.ws.security.message.token.KerberosSecurity; | ||
| import org.apache.ws.security.util.Base64; | ||
| import org.apache.ws.security.util.WSSecurityUtil; | ||
| import org.ietf.jgss.GSSContext; | ||
| import org.ietf.jgss.GSSCredential; | ||
| import org.ietf.jgss.GSSException; | ||
| import org.ietf.jgss.GSSManager; | ||
| import org.ietf.jgss.GSSName; | ||
| import org.ietf.jgss.Oid; | ||
| import org.teiid.logging.LogConstants; | ||
| import org.teiid.logging.LogManager; | ||
| import org.teiid.logging.MessageLevel; | ||
| import org.teiid.resource.spi.ConnectionContext; | ||
| import org.w3c.dom.Document; | ||
| /** | ||
| * Parts of this code as been borrowed from apache CXF later versions to support Teiid. | ||
| */ | ||
| public class DelegateKerberosClient extends KerberosClient { | ||
|
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| private static final String KERBEROS_OID = "1.2.840.113554.1.2.2";//$NON-NLS-1$ | ||
| private GSSCredential credential; | ||
|
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| private WSSConfig wssConfig = WSSConfig.getNewInstance(); | ||
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| @Deprecated | ||
| public DelegateKerberosClient(Bus b) { | ||
| super(b); | ||
| } | ||
|
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| @SuppressWarnings("deprecation") | ||
| public DelegateKerberosClient() { | ||
| super(null); | ||
| } | ||
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| @Override | ||
| public SecurityToken requestSecurityToken() throws Exception { | ||
| DelegatedKerberosSecurity bst = new DelegatedKerberosSecurity(DOMUtils.createDocument()); | ||
| bst.retrieveServiceTicket(getContextName(), getServiceName(), getGssCredential()); | ||
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| bst.addWSUNamespace(); | ||
| bst.setID(wssConfig.getIdAllocator().createSecureId("BST-", bst)); //$NON-NLS-1$ | ||
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| SecurityToken st = new SecurityToken(bst.getID()); | ||
| st.setToken(bst.getElement()); | ||
| st.setWsuId(bst.getID()); | ||
| SecretKey secretKey = bst.getSecretKey(); | ||
| if (secretKey != null) { | ||
| st.setSecret(secretKey.getEncoded()); | ||
| } | ||
| String sha1 = Base64.encode(WSSecurityUtil.generateDigest(bst.getToken())); | ||
| st.setSHA1(sha1); | ||
| st.setTokenType(bst.getValueType()); | ||
| return st; | ||
| } | ||
|
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| public GSSCredential getGssCredential() { | ||
| if (this.credential != null) { | ||
| return this.credential; | ||
| } | ||
|
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| // Teiid Specific | ||
| Subject subject = ConnectionContext.getSubject(); | ||
| if (subject != null) { | ||
| return ConnectionContext.getSecurityCredential(subject, GSSCredential.class); | ||
| } | ||
| return null; | ||
| } | ||
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| public void setGssCredential(GSSCredential credential) { | ||
| this.credential = credential; | ||
| } | ||
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| /** | ||
| * Modified Kerberos Security for delegation from later versions of WSS4J | ||
| * | ||
| * Licensed to the Apache Software Foundation (ASF) under one | ||
| * or more contributor license agreements. See the NOTICE file | ||
| * distributed with this work for additional information | ||
| * regarding copyright ownership. The ASF licenses this file | ||
| * to you under the Apache License, Version 2.0 (the | ||
| * "License"); you may not use this file except in compliance | ||
| * with the License. You may obtain a copy of the License at | ||
| * | ||
| * http://www.apache.org/licenses/LICENSE-2.0 | ||
| * | ||
| * Unless required by applicable law or agreed to in writing, | ||
| * software distributed under the License is distributed on an | ||
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY | ||
| * KIND, either express or implied. See the License for the | ||
| * specific language governing permissions and limitations | ||
| * under the License. | ||
| */ | ||
| static class DelegatedKerberosSecurity extends KerberosSecurity { | ||
| private SecretKey secretKey; | ||
|
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| public DelegatedKerberosSecurity(Document doc) { | ||
| super(doc); | ||
| } | ||
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| @Override | ||
| public SecretKey getSecretKey() { | ||
| return secretKey; | ||
| } | ||
|
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| public void retrieveServiceTicket(String jaasName, String serviceName, GSSCredential delegatedCredential) | ||
| throws WSSecurityException { | ||
| // Get a TGT from the KDC using JAAS | ||
| LoginContext loginContext = null; | ||
| try { | ||
| loginContext = new LoginContext(jaasName); | ||
| loginContext.login(); | ||
| } catch (LoginException ex) { | ||
| throw new WSSecurityException(WSSecurityException.FAILURE, "kerberosLoginError",//$NON-NLS-1$ | ||
| new Object[] { ex.getMessage() }, ex); | ||
| } | ||
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| Subject clientSubject = loginContext.getSubject(); | ||
| Set<Principal> clientPrincipals = clientSubject.getPrincipals(); | ||
| if (clientPrincipals.isEmpty()) { | ||
| throw new WSSecurityException(WSSecurityException.FAILURE, "kerberosLoginError",//$NON-NLS-1$ | ||
| new Object[] { "No Client principals found after login" });//$NON-NLS-1$ | ||
| } | ||
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| // Store the TGT | ||
| KerberosTicket tgt = getKerberosTicket(clientSubject, null); | ||
|
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| // Get the service ticket | ||
| KerberosClientAction action = new KerberosClientAction(serviceName, delegatedCredential); | ||
| byte[] ticket = Subject.doAs(clientSubject, action); | ||
| if (ticket == null) { | ||
| throw new WSSecurityException(WSSecurityException.FAILURE, "kerberosServiceTicketError");//$NON-NLS-1$ | ||
| } | ||
|
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| // Get the Service Ticket (private credential) | ||
| KerberosTicket serviceTicket = getKerberosTicket(clientSubject, tgt); | ||
| if (serviceTicket != null) { | ||
| secretKey = serviceTicket.getSessionKey(); | ||
| } | ||
|
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| setToken(ticket); | ||
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| if ("".equals(getValueType())) { //$NON-NLS-1$ | ||
| setValueType(WSConstants.WSS_GSS_KRB_V5_AP_REQ); | ||
| } | ||
| } | ||
|
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| private KerberosTicket getKerberosTicket(Subject clientSubject, KerberosTicket previousTicket) { | ||
| Set<KerberosTicket> privateCredentials = clientSubject.getPrivateCredentials(KerberosTicket.class); | ||
| if (privateCredentials == null || privateCredentials.isEmpty()) { | ||
| return null; | ||
| } | ||
|
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| for (KerberosTicket privateCredential : privateCredentials) { | ||
| if (!privateCredential.equals(previousTicket)) { | ||
| return privateCredential; | ||
| } | ||
| } | ||
| return null; | ||
| } | ||
| } | ||
|
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| static class KerberosClientAction implements PrivilegedAction<byte[]> { | ||
| private String serviceName; | ||
| private GSSCredential delegatedCredential; | ||
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| public KerberosClientAction(String serviceName, GSSCredential delegatedCredential) { | ||
| this.serviceName = serviceName; | ||
| this.delegatedCredential = delegatedCredential; | ||
| } | ||
|
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| public byte[] run() { | ||
| try { | ||
| GSSManager gssManager = GSSManager.getInstance(); | ||
|
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| Oid kerberos5Oid = new Oid(KERBEROS_OID); | ||
| GSSCredential credentials = this.delegatedCredential; | ||
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| GSSName gssService = gssManager.createName(this.serviceName, GSSName.NT_HOSTBASED_SERVICE); | ||
| GSSContext secContext = gssManager.createContext(gssService, kerberos5Oid, credentials, | ||
| GSSContext.DEFAULT_LIFETIME); | ||
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| secContext.requestMutualAuth(false); | ||
| byte[] token = new byte[0]; | ||
| byte[] returnedToken = secContext.initSecContext(token, 0, token.length); | ||
| secContext.dispose(); | ||
| return returnedToken; | ||
| } catch (GSSException e) { | ||
| if (LogManager.isMessageToBeRecorded(LogConstants.CTX_WS, MessageLevel.DETAIL)) { | ||
| LogManager.logDetail(LogConstants.CTX_WS, "Error in obtaining a Kerberos token"); //$NON-NLS-1$ | ||
| } | ||
| } | ||
| return null; | ||
| } | ||
| } | ||
| } | ||
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