/*
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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 2006-2008 Sun Microsystems, Inc.
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* Portions Copyright 2013-2014 ForgeRock AS
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*/
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package org.opends.server.extensions;
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import java.security.cert.Certificate;
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import java.security.cert.X509Certificate;
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import java.util.concurrent.locks.Lock;
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import javax.security.auth.x500.X500Principal;
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import org.forgerock.i18n.LocalizableMessage;
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import org.opends.server.admin.std.server.SubjectEqualsDNCertificateMapperCfg;
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import org.opends.server.api.CertificateMapper;
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import org.opends.server.config.ConfigException;
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import org.opends.server.core.DirectoryServer;
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import org.forgerock.i18n.slf4j.LocalizedLogger;
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import org.opends.server.types.*;
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import org.forgerock.opendj.ldap.ResultCode;
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import static org.opends.messages.ExtensionMessages.*;
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import static org.opends.server.util.StaticUtils.*;
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/**
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* This class implements a very simple Directory Server certificate mapper that
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* will map a certificate to a user only if the subject of the peer certificate
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* exactly matches the DN of a user in the Directory Server.
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*/
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public class SubjectEqualsDNCertificateMapper
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extends CertificateMapper<SubjectEqualsDNCertificateMapperCfg>
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{
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private static final LocalizedLogger logger = LocalizedLogger.getLoggerForThisClass();
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/**
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* Creates a new instance of this certificate mapper. Note that all actual
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* initialization should be done in the
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* <CODE>initializeCertificateMapper</CODE> method.
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*/
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public SubjectEqualsDNCertificateMapper()
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{
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super();
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}
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/**
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* {@inheritDoc}
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*/
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@Override
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public void initializeCertificateMapper(SubjectEqualsDNCertificateMapperCfg
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configuration)
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throws ConfigException, InitializationException
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{
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// No initialization is required.
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}
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/**
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* Establishes a mapping between the information in the provided certificate
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* chain to the DN of a single user in the Directory Server.
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*
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* @param certificateChain The certificate chain presented by the client
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* during SSL negotiation. The peer certificate
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* will be listed first, followed by the ordered
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* issuer chain as appropriate.
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*
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* @return The DN of the one user to whom the mapping was established, or
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* <CODE>null</CODE> if no mapping was established and no special
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* message is required to send back to the client.
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*
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* @throws DirectoryException If a problem occurred while attempting to
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* establish the mapping. This may include
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* internal failures, a mapping which matches
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* multiple users, or any other case in which an
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* error message should be returned to the
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* client.
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*/
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@Override
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public Entry mapCertificateToUser(Certificate[] certificateChain)
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throws DirectoryException
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{
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// Make sure that a peer certificate was provided.
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if ((certificateChain == null) || (certificateChain.length == 0))
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{
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LocalizableMessage message = ERR_SEDCM_NO_PEER_CERTIFICATE.get();
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throw new DirectoryException(ResultCode.INVALID_CREDENTIALS, message);
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}
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// Get the first certificate in the chain. It must be an X.509 certificate.
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X509Certificate peerCertificate;
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try
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{
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peerCertificate = (X509Certificate) certificateChain[0];
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}
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catch (Exception e)
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{
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logger.traceException(e);
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LocalizableMessage message = ERR_SEDCM_PEER_CERT_NOT_X509.get(certificateChain[0].getType());
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throw new DirectoryException(ResultCode.INVALID_CREDENTIALS, message);
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}
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// Get the subject from the peer certificate and decode it as a DN.
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X500Principal peerPrincipal = peerCertificate.getSubjectX500Principal();
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DN subjectDN;
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try
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{
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subjectDN = DN.valueOf(peerPrincipal.getName(X500Principal.RFC2253));
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}
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catch (Exception e)
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{
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logger.traceException(e);
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LocalizableMessage message = ERR_SEDCM_CANNOT_DECODE_SUBJECT_AS_DN.get(peerPrincipal, getExceptionMessage(e));
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throw new DirectoryException(ResultCode.INVALID_CREDENTIALS, message);
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}
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// Acquire a read lock on the user entry. If this fails, then so will the
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// certificate mapping.
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final Lock readLock = LockManager.lockRead(subjectDN);
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if (readLock == null)
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{
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throw new DirectoryException(ResultCode.BUSY, ERR_SEDCM_CANNOT_LOCK_ENTRY.get(subjectDN));
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}
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// Retrieve the entry with the specified DN from the directory.
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Entry userEntry;
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try
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{
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userEntry = DirectoryServer.getEntry(subjectDN);
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}
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catch (DirectoryException de)
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{
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logger.traceException(de);
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LocalizableMessage message = ERR_SEDCM_CANNOT_GET_ENTRY.get(subjectDN, de.getMessageObject());
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throw new DirectoryException(ResultCode.INVALID_CREDENTIALS, message, de);
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}
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catch (Exception e)
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{
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logger.traceException(e);
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LocalizableMessage message = ERR_SEDCM_CANNOT_GET_ENTRY.get(subjectDN, getExceptionMessage(e));
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throw new DirectoryException(ResultCode.INVALID_CREDENTIALS, message, e);
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}
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finally
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{
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LockManager.unlock(subjectDN, readLock);
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}
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if (userEntry == null)
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{
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LocalizableMessage message = ERR_SEDCM_NO_USER_FOR_DN.get(subjectDN);
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throw new DirectoryException(ResultCode.INVALID_CREDENTIALS, message);
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}
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else
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{
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return userEntry;
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}
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}
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}
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