/*
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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
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* trunk/opends/resource/legal-notices/OpenDS.LICENSE
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* or https://OpenDS.dev.java.net/OpenDS.LICENSE.
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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
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* trunk/opends/resource/legal-notices/OpenDS.LICENSE. If applicable,
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* add the following below this CDDL HEADER, with the fields enclosed
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* by brackets "[]" replaced with your own identifying * 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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* Portions Copyright 2006 Sun Microsystems, Inc.
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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 javax.security.auth.x500.X500Principal;
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import java.util.concurrent.locks.Lock;
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import org.opends.server.api.CertificateMapper;
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import org.opends.server.config.ConfigEntry;
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import org.opends.server.config.ConfigException;
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import org.opends.server.core.DirectoryException;
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import org.opends.server.core.DirectoryServer;
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import org.opends.server.core.InitializationException;
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import org.opends.server.core.LockManager;
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import org.opends.server.types.DN;
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import org.opends.server.types.Entry;
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import org.opends.server.types.ResultCode;
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import static org.opends.server.loggers.Debug.*;
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import static org.opends.server.messages.ExtensionsMessages.*;
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import static org.opends.server.messages.MessageHandler.*;
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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
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{
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/**
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* The fully-qualified name of this class for debugging purposes.
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*/
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private static final String CLASS_NAME =
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"org.opends.server.extensions.SubjectEqualsDNCertificateMapper";
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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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assert debugConstructor(CLASS_NAME);
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}
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/**
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* Initializes this certificate mapper based on the information in the
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* provided configuration entry.
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*
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* @param configEntry The configuration entry that contains the information
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* to use to initialize this certificate mapper.
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*
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* @throws ConfigException If the provided entry does not contain a valid
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* certificate mapper configuration.
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*
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* @throws InitializationException If a problem occurs during initialization
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* that is not related to the server
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* configuration.
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*/
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public void initializeCertificateMapper(ConfigEntry configEntry)
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throws ConfigException, InitializationException
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{
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assert debugEnter(CLASS_NAME, "initializeCertificateMapper",
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String.valueOf(configEntry));
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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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public Entry mapCertificateToUser(Certificate[] certificateChain)
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throws DirectoryException
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{
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assert debugEnter(CLASS_NAME, "mapCertificateToUser",
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String.valueOf(certificateChain));
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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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int msgID = MSGID_SEDCM_NO_PEER_CERTIFICATE;
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String message = getMessage(msgID);
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throw new DirectoryException(ResultCode.INVALID_CREDENTIALS, message,
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msgID);
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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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assert debugException(CLASS_NAME, "mapCertificateToUser", e);
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int msgID = MSGID_SEDCM_PEER_CERT_NOT_X509;
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String message =
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getMessage(msgID, String.valueOf(certificateChain[0].getType()));
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throw new DirectoryException(ResultCode.INVALID_CREDENTIALS, message,
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msgID);
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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.decode(peerPrincipal.getName(X500Principal.RFC2253));
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}
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catch (Exception e)
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{
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assert debugException(CLASS_NAME, "mapCertificateToUser", e);
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int msgID = MSGID_SEDCM_CANNOT_DECODE_SUBJECT_AS_DN;
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String message = getMessage(msgID, String.valueOf(peerPrincipal),
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stackTraceToSingleLineString(e));
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throw new DirectoryException(ResultCode.INVALID_CREDENTIALS, message,
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msgID);
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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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Lock readLock = null;
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for (int i=0; i < 3; i++)
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{
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readLock = LockManager.lockRead(subjectDN);
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if (readLock != null)
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{
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break;
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}
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}
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if (readLock == null)
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{
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int msgID = MSGID_SEDCM_CANNOT_LOCK_ENTRY;
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String message = getMessage(msgID, String.valueOf(subjectDN));
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throw new DirectoryException(ResultCode.INVALID_CREDENTIALS, message,
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msgID);
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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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assert debugException(CLASS_NAME, "mapCertificateToUser", de);
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int msgID = MSGID_SEDCM_CANNOT_GET_ENTRY;
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String message = getMessage(msgID, String.valueOf(subjectDN),
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de.getErrorMessage());
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throw new DirectoryException(ResultCode.INVALID_CREDENTIALS, message,
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msgID, de);
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}
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catch (Exception e)
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{
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assert debugException(CLASS_NAME, "mapCertificateToUser", e);
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int msgID = MSGID_SEDCM_CANNOT_GET_ENTRY;
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String message = getMessage(msgID, String.valueOf(subjectDN),
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stackTraceToSingleLineString(e));
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throw new DirectoryException(ResultCode.INVALID_CREDENTIALS, message,
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msgID, 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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int msgID = MSGID_SEDCM_NO_USER_FOR_DN;
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String message = getMessage(msgID, String.valueOf(subjectDN));
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throw new DirectoryException(ResultCode.INVALID_CREDENTIALS, message,
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msgID);
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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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