/*
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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.MessageDigest;
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import java.security.SecureRandom;
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import java.text.ParseException;
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import java.util.ArrayList;
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import java.util.Arrays;
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import java.util.LinkedList;
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import java.util.List;
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import java.util.concurrent.locks.Lock;
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import java.util.concurrent.locks.ReentrantLock;
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import org.opends.server.api.ClientConnection;
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import org.opends.server.api.ConfigurableComponent;
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import org.opends.server.api.IdentityMapper;
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import org.opends.server.api.SASLMechanismHandler;
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import org.opends.server.config.ConfigAttribute;
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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.config.DNConfigAttribute;
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import org.opends.server.core.BindOperation;
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import org.opends.server.core.DirectoryServer;
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import org.opends.server.core.PasswordPolicyState;
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import org.opends.server.protocols.asn1.ASN1OctetString;
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import org.opends.server.types.AuthenticationInfo;
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import org.opends.server.types.ByteString;
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import org.opends.server.types.ConfigChangeResult;
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import org.opends.server.types.DirectoryException;
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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.InitializationException;
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import org.opends.server.types.LockManager;
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import org.opends.server.types.ResultCode;
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import static org.opends.server.config.ConfigConstants.*;
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import static org.opends.server.extensions.ExtensionsConstants.*;
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import static org.opends.server.loggers.Debug.*;
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import static org.opends.server.loggers.Error.*;
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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.ServerConstants.*;
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import static org.opends.server.util.StaticUtils.*;
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/**
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* This class provides an implementation of a SASL mechanism that uses digest
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* authentication via CRAM-MD5. This is a password-based mechanism that does
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* not expose the password itself over the wire but rather uses an MD5 hash that
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* proves the client knows the password. This is similar to the DIGEST-MD5
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* mechanism, and the primary differences are that CRAM-MD5 only obtains random
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* data from the server (whereas DIGEST-MD5 uses random data from both the
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* server and the client), CRAM-MD5 does not allow for an authorization ID in
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* addition to the authentication ID where DIGEST-MD5 does, and CRAM-MD5 does
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* not define any integrity and confidentiality mechanisms where DIGEST-MD5
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* does. This implementation is based on the proposal defined in
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* draft-ietf-sasl-crammd5-05.
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*/
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public class CRAMMD5SASLMechanismHandler
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extends SASLMechanismHandler
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implements ConfigurableComponent
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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.CRAMMD5SASLMechanismHandler";
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// An array filled with the inner pad byte.
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private byte[] iPad;
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// An array filled with the outer pad byte.
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private byte[] oPad;
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// The DN of the configuration entry for this SASL mechanism handler.
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private DN configEntryDN;
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// The DN of the identity mapper configuration entry.
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private DN identityMapperDN;
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// The identity mapper that will be used to map ID strings to user entries.
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private IdentityMapper identityMapper;
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// The message digest engine that will be used to create the MD5 digests.
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private MessageDigest md5Digest;
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// The lock that will be used to provide threadsafe access to the message
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// digest.
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private ReentrantLock digestLock;
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// The random number generator that we will use to create the server
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// challenge.
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private SecureRandom randomGenerator;
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/**
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* Creates a new instance of this SASL mechanism handler. No initialization
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* should be done in this method, as it should all be performed in the
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* <CODE>initializeSASLMechanismHandler</CODE> method.
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*/
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public CRAMMD5SASLMechanismHandler()
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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 SASL mechanism handler based on the information in the
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* provided configuration entry. It should also register itself with the
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* Directory Server for the particular kinds of SASL mechanisms that it
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* will process.
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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 SASL mechanism handler.
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*
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* @throws ConfigException If an unrecoverable problem arises in the
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* process of performing the initialization.
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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 initializeSASLMechanismHandler(ConfigEntry configEntry)
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throws ConfigException, InitializationException
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{
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assert debugEnter(CLASS_NAME, "initializeSASLMechanismHandler",
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String.valueOf(configEntry));
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this.configEntryDN = configEntry.getDN();
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// Initialize the variables needed for the MD5 digest creation.
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digestLock = new ReentrantLock();
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randomGenerator = new SecureRandom();
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try
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{
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md5Digest = MessageDigest.getInstance("MD5");
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}
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catch (Exception e)
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{
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assert debugException(CLASS_NAME, "initializeSASLMechanismHandler", e);
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int msgID = MSGID_SASLCRAMMD5_CANNOT_GET_MESSAGE_DIGEST;
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String message = getMessage(msgID, stackTraceToSingleLineString(e));
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throw new InitializationException(msgID, message, e);
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}
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// Create and fill the iPad and oPad arrays.
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iPad = new byte[HMAC_MD5_BLOCK_LENGTH];
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oPad = new byte[HMAC_MD5_BLOCK_LENGTH];
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Arrays.fill(iPad, CRAMMD5_IPAD_BYTE);
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Arrays.fill(oPad, CRAMMD5_OPAD_BYTE);
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// Get the identity mapper that should be used to find users.
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int msgID = MSGID_SASLCRAMMD5_DESCRIPTION_IDENTITY_MAPPER_DN;
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DNConfigAttribute mapperStub =
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new DNConfigAttribute(ATTR_IDMAPPER_DN, getMessage(msgID), true, false,
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false);
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try
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{
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DNConfigAttribute mapperAttr =
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(DNConfigAttribute) configEntry.getConfigAttribute(mapperStub);
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if (mapperAttr == null)
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{
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msgID = MSGID_SASLCRAMMD5_NO_IDENTITY_MAPPER_ATTR;
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String message = getMessage(msgID, String.valueOf(configEntryDN));
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throw new ConfigException(msgID, message);
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}
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else
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{
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identityMapperDN = mapperAttr.activeValue();
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identityMapper = DirectoryServer.getIdentityMapper(identityMapperDN);
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if (identityMapper == null)
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{
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msgID = MSGID_SASLCRAMMD5_NO_SUCH_IDENTITY_MAPPER;
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String message = getMessage(msgID, String.valueOf(identityMapperDN),
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String.valueOf(configEntryDN));
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throw new ConfigException(msgID, message);
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}
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}
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}
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catch (ConfigException ce)
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{
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throw ce;
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}
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catch (Exception e)
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{
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assert debugException(CLASS_NAME, "initializeSASLMechanismHandler", e);
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msgID = MSGID_SASLCRAMMD5_CANNOT_GET_IDENTITY_MAPPER;
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String message = getMessage(msgID, String.valueOf(configEntryDN),
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stackTraceToSingleLineString(e));
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throw new InitializationException(msgID, message, e);
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}
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DirectoryServer.registerSASLMechanismHandler(SASL_MECHANISM_CRAM_MD5, this);
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DirectoryServer.registerConfigurableComponent(this);
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}
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/**
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* Performs any finalization that may be necessary for this SASL mechanism
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* handler.
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*/
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public void finalizeSASLMechanismHandler()
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{
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assert debugEnter(CLASS_NAME, "finalizeSASLMechanismHandler");
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DirectoryServer.deregisterConfigurableComponent(this);
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DirectoryServer.deregisterSASLMechanismHandler(SASL_MECHANISM_CRAM_MD5);
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}
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/**
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* Processes the provided SASL bind operation. Note that if the SASL
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* processing gets far enough to be able to map the associated request to a
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* user entry (regardless of whether the authentication is ultimately
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* successful), then this method must call the
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* <CODE>BindOperation.setSASLAuthUserEntry</CODE> to provide it with the
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* entry for the user that attempted to authenticate.
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*
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* @param bindOperation The SASL bind operation to be processed.
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*/
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public void processSASLBind(BindOperation bindOperation)
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{
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assert debugEnter(CLASS_NAME, "processSASLBind",
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String.valueOf(bindOperation));
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// The CRAM-MD5 bind process uses two stages. See if the client provided
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// any credentials. If not, then we're in the first stage so we'll send the
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// challenge to the client.
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ByteString clientCredentials = bindOperation.getSASLCredentials();
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ClientConnection clientConnection = bindOperation.getClientConnection();
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if (clientCredentials == null)
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{
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// The client didn't provide any credentials, so this is the initial
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// request. Generate some random data to send to the client as the
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// challenge and store it in the client connection so we can verify the
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// credentials provided by the client later.
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byte[] challengeBytes = new byte[16];
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randomGenerator.nextBytes(challengeBytes);
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StringBuilder challengeString = new StringBuilder(18);
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challengeString.append('<');
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for (byte b : challengeBytes)
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{
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challengeString.append(byteToLowerHex(b));
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}
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challengeString.append('>');
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ASN1OctetString challenge =
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new ASN1OctetString(challengeString.toString());
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clientConnection.setSASLAuthStateInfo(challenge);
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bindOperation.setServerSASLCredentials(challenge);
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bindOperation.setResultCode(ResultCode.SASL_BIND_IN_PROGRESS);
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return;
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}
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// If we've gotten here, then the client did provide credentials. First,
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// make sure that we have a stored version of the credentials associated
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// with the client connection. If not, then it likely means that the client
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// is trying to pull a fast one on us.
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Object saslStateInfo = clientConnection.getSASLAuthStateInfo();
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if (saslStateInfo == null)
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{
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bindOperation.setResultCode(ResultCode.INVALID_CREDENTIALS);
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int msgID = MSGID_SASLCRAMMD5_NO_STORED_CHALLENGE;
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String message = getMessage(msgID);
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bindOperation.setAuthFailureReason(msgID, message);
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return;
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}
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if (! (saslStateInfo instanceof ASN1OctetString))
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{
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bindOperation.setResultCode(ResultCode.INVALID_CREDENTIALS);
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int msgID = MSGID_SASLCRAMMD5_INVALID_STORED_CHALLENGE;
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String message = getMessage(msgID);
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bindOperation.setAuthFailureReason(msgID, message);
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return;
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}
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ASN1OctetString challenge = (ASN1OctetString) saslStateInfo;
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// Wipe out the stored challenge so it can't be used again.
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clientConnection.setSASLAuthStateInfo(null);
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// Now look at the client credentials and make sure that we can decode them.
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// It should be a username followed by a space and a digest string. Since
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// the username itself may contain spaces but the digest string may not,
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// look for the last space and use it as the delimiter.
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String credString = clientCredentials.stringValue();
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int spacePos = credString.lastIndexOf(' ');
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if (spacePos < 0)
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{
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bindOperation.setResultCode(ResultCode.INVALID_CREDENTIALS);
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int msgID = MSGID_SASLCRAMMD5_NO_SPACE_IN_CREDENTIALS;
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String message = getMessage(msgID);
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bindOperation.setAuthFailureReason(msgID, message);
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return;
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}
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String userName = credString.substring(0, spacePos);
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String digest = credString.substring(spacePos+1);
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// Look at the digest portion of the provided credentials. It must have a
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// length of exactly 32 bytes and be comprised only of hex characters.
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if (digest.length() != (2*MD5_DIGEST_LENGTH))
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{
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bindOperation.setResultCode(ResultCode.INVALID_CREDENTIALS);
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int msgID = MSGID_SASLCRAMMD5_INVALID_DIGEST_LENGTH;
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String message = getMessage(msgID, digest.length(),
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(2*MD5_DIGEST_LENGTH));
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bindOperation.setAuthFailureReason(msgID, message);
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return;
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}
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byte[] digestBytes;
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try
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{
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digestBytes = hexStringToByteArray(digest);
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}
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catch (ParseException pe)
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{
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assert debugException(CLASS_NAME, "processSASLBind", pe);
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int msgID = MSGID_SASLCRAMMD5_INVALID_DIGEST_CONTENT;
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String message = getMessage(msgID, pe.getMessage());
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bindOperation.setAuthFailureReason(msgID, message);
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return;
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}
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// Get the user entry for the authentication ID. Allow for an
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// authentication ID that is just a username (as per the CRAM-MD5 spec), but
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// also allow a value in the authzid form specified in RFC 2829.
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Entry userEntry = null;
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String lowerUserName = toLowerCase(userName);
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if (lowerUserName.startsWith("dn:"))
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{
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// Try to decode the user DN and retrieve the corresponding entry.
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DN userDN;
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try
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{
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userDN = DN.decode(userName.substring(3));
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}
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catch (DirectoryException de)
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{
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assert debugException(CLASS_NAME, "processSASLBind", de);
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bindOperation.setResultCode(ResultCode.INVALID_CREDENTIALS);
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int msgID = MSGID_SASLCRAMMD5_CANNOT_DECODE_USERNAME_AS_DN;
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String message = getMessage(msgID, userName, de.getErrorMessage());
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bindOperation.setAuthFailureReason(msgID, message);
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return;
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}
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if (userDN.isNullDN())
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{
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bindOperation.setResultCode(ResultCode.INVALID_CREDENTIALS);
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int msgID = MSGID_SASLCRAMMD5_USERNAME_IS_NULL_DN;
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String message = getMessage(msgID);
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bindOperation.setAuthFailureReason(msgID, message);
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return;
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}
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DN rootDN = DirectoryServer.getActualRootBindDN(userDN);
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if (rootDN != null)
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{
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userDN = rootDN;
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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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// authentication.
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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(userDN);
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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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bindOperation.setResultCode(DirectoryServer.getServerErrorResultCode());
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int msgID = MSGID_SASLCRAMMD5_CANNOT_LOCK_ENTRY;
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String message = getMessage(msgID, String.valueOf(userDN));
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bindOperation.setAuthFailureReason(msgID, message);
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return;
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}
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try
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{
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userEntry = DirectoryServer.getEntry(userDN);
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}
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catch (DirectoryException de)
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{
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assert debugException(CLASS_NAME, "processSASLBind", de);
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bindOperation.setResultCode(ResultCode.INVALID_CREDENTIALS);
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int msgID = MSGID_SASLCRAMMD5_CANNOT_GET_ENTRY_BY_DN;
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String message = getMessage(msgID, String.valueOf(userDN),
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de.getErrorMessage());
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bindOperation.setAuthFailureReason(msgID, message);
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return;
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}
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finally
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{
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LockManager.unlock(userDN, readLock);
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}
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}
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else
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{
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// Use the identity mapper to resolve the username to an entry.
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if (lowerUserName.startsWith("u:"))
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{
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userName = userName.substring(2);
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}
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try
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{
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userEntry = identityMapper.getEntryForID(userName);
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}
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catch (DirectoryException de)
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{
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assert debugException(CLASS_NAME, "processSASLBind", de);
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bindOperation.setResultCode(ResultCode.INVALID_CREDENTIALS);
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int msgID = MSGID_SASLCRAMMD5_CANNOT_MAP_USERNAME;
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String message = getMessage(msgID, String.valueOf(userName),
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de.getErrorMessage());
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bindOperation.setAuthFailureReason(msgID, message);
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return;
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}
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}
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// At this point, we should have a user entry. If we don't then fail.
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if (userEntry == null)
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{
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bindOperation.setResultCode(ResultCode.INVALID_CREDENTIALS);
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int msgID = MSGID_SASLCRAMMD5_NO_MATCHING_ENTRIES;
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String message = getMessage(msgID, userName);
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bindOperation.setAuthFailureReason(msgID, message);
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return;
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}
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else
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{
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bindOperation.setSASLAuthUserEntry(userEntry);
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}
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// Get the clear-text passwords from the user entry, if there are any.
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List<ByteString> clearPasswords;
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try
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{
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PasswordPolicyState pwPolicyState =
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new PasswordPolicyState(userEntry, false, false);
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clearPasswords = pwPolicyState.getClearPasswords();
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if ((clearPasswords == null) || clearPasswords.isEmpty())
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{
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bindOperation.setResultCode(ResultCode.INVALID_CREDENTIALS);
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int msgID = MSGID_SASLCRAMMD5_NO_REVERSIBLE_PASSWORDS;
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String message = getMessage(msgID, String.valueOf(userEntry.getDN()));
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bindOperation.setAuthFailureReason(msgID, message);
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return;
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}
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}
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catch (Exception e)
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{
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bindOperation.setResultCode(ResultCode.INVALID_CREDENTIALS);
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int msgID = MSGID_SASLCRAMMD5_CANNOT_GET_REVERSIBLE_PASSWORDS;
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String message = getMessage(msgID, String.valueOf(userEntry.getDN()),
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String.valueOf(e));
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bindOperation.setAuthFailureReason(msgID, message);
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return;
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}
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// Iterate through the clear-text values and see if any of them can be used
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// in conjunction with the challenge to construct the provided digest.
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boolean matchFound = false;
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for (ByteString clearPassword : clearPasswords)
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{
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byte[] generatedDigest = generateDigest(clearPassword, challenge);
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if (Arrays.equals(digestBytes, generatedDigest))
|
{
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matchFound = true;
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break;
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}
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}
|
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if (! matchFound)
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{
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bindOperation.setResultCode(ResultCode.INVALID_CREDENTIALS);
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int msgID = MSGID_SASLCRAMMD5_INVALID_PASSWORD;
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String message = getMessage(msgID);
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bindOperation.setAuthFailureReason(msgID, message);
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return;
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}
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// If we've gotten here, then the authentication was successful.
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bindOperation.setResultCode(ResultCode.SUCCESS);
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AuthenticationInfo authInfo =
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new AuthenticationInfo(userEntry.getDN(), SASL_MECHANISM_CRAM_MD5,
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DirectoryServer.isRootDN(userEntry.getDN()));
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bindOperation.getClientConnection().setAuthenticationInfo(authInfo);
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return;
|
}
|
|
|
|
/**
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* Generates the appropriate HMAC-MD5 digest for a CRAM-MD5 authentication
|
* with the given information.
|
*
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* @param password The clear-text password to use when generating the
|
* digest.
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* @param challenge The server-supplied challenge to use when generating the
|
* digest.
|
*
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* @return The generated HMAC-MD5 digest for CRAM-MD5 authentication.
|
*/
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private byte[] generateDigest(ByteString password, ByteString challenge)
|
{
|
assert debugEnter(CLASS_NAME, "generateDigest",
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String.valueOf(password), String.valueOf(challenge));
|
|
|
// Get the byte arrays backing the password and challenge.
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byte[] p = password.value();
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byte[] c = challenge.value();
|
|
|
// Grab a lock to protect the MD5 digest generation.
|
digestLock.lock();
|
|
try
|
{
|
// If the password is longer than the HMAC-MD5 block length, then use an
|
// MD5 digest of the password rather than the password itself.
|
if (p.length > HMAC_MD5_BLOCK_LENGTH)
|
{
|
p = md5Digest.digest(p);
|
}
|
|
|
// Create byte arrays with data needed for the hash generation.
|
byte[] iPadAndData = new byte[HMAC_MD5_BLOCK_LENGTH + c.length];
|
System.arraycopy(iPad, 0, iPadAndData, 0, HMAC_MD5_BLOCK_LENGTH);
|
System.arraycopy(c, 0, iPadAndData, HMAC_MD5_BLOCK_LENGTH, c.length);
|
|
byte[] oPadAndHash = new byte[HMAC_MD5_BLOCK_LENGTH + MD5_DIGEST_LENGTH];
|
System.arraycopy(oPad, 0, oPadAndHash, 0, HMAC_MD5_BLOCK_LENGTH);
|
|
|
// Iterate through the bytes in the key and XOR them with the iPad and
|
// oPad as appropriate.
|
for (int i=0; i < p.length; i++)
|
{
|
iPadAndData[i] ^= p[i];
|
oPadAndHash[i] ^= p[i];
|
}
|
|
|
// Copy an MD5 digest of the iPad-XORed key and the data into the array to
|
// be hashed.
|
System.arraycopy(md5Digest.digest(iPadAndData), 0, oPadAndHash,
|
HMAC_MD5_BLOCK_LENGTH, MD5_DIGEST_LENGTH);
|
|
|
// Return an MD5 digest of the resulting array.
|
return md5Digest.digest(oPadAndHash);
|
}
|
finally
|
{
|
digestLock.unlock();
|
}
|
}
|
|
|
|
/**
|
* Retrieves the DN of the configuration entry with which this component is
|
* associated.
|
*
|
* @return The DN of the configuration entry with which this component is
|
* associated.
|
*/
|
public DN getConfigurableComponentEntryDN()
|
{
|
assert debugEnter(CLASS_NAME, "getConfigurableComponentEntryDN");
|
|
return configEntryDN;
|
}
|
|
|
|
|
/**
|
* Retrieves the set of configuration attributes that are associated with this
|
* configurable component.
|
*
|
* @return The set of configuration attributes that are associated with this
|
* configurable component.
|
*/
|
public List<ConfigAttribute> getConfigurationAttributes()
|
{
|
assert debugEnter(CLASS_NAME, "getConfigurationAttributes");
|
|
|
LinkedList<ConfigAttribute> attrList = new LinkedList<ConfigAttribute>();
|
|
int msgID = MSGID_SASLCRAMMD5_DESCRIPTION_IDENTITY_MAPPER_DN;
|
attrList.add(new DNConfigAttribute(ATTR_IDMAPPER_DN, getMessage(msgID),
|
true, false, false, identityMapperDN));
|
|
return attrList;
|
}
|
|
|
|
/**
|
* Indicates whether the provided configuration entry has an acceptable
|
* configuration for this component. If it does not, then detailed
|
* information about the problem(s) should be added to the provided list.
|
*
|
* @param configEntry The configuration entry for which to make the
|
* determination.
|
* @param unacceptableReasons A list that can be used to hold messages about
|
* why the provided entry does not have an
|
* acceptable configuration.
|
*
|
* @return <CODE>true</CODE> if the provided entry has an acceptable
|
* configuration for this component, or <CODE>false</CODE> if not.
|
*/
|
public boolean hasAcceptableConfiguration(ConfigEntry configEntry,
|
List<String> unacceptableReasons)
|
{
|
assert debugEnter(CLASS_NAME, "hasAcceptableConfiguration",
|
String.valueOf(configEntry), "java.util.List<String>");
|
|
|
// Look at the identity mapper configuration.
|
int msgID = MSGID_SASLCRAMMD5_DESCRIPTION_IDENTITY_MAPPER_DN;
|
DNConfigAttribute mapperStub =
|
new DNConfigAttribute(ATTR_IDMAPPER_DN, getMessage(msgID), true, false,
|
false);
|
try
|
{
|
DNConfigAttribute mapperAttr =
|
(DNConfigAttribute) configEntry.getConfigAttribute(mapperStub);
|
if (mapperAttr == null)
|
{
|
msgID = MSGID_SASLCRAMMD5_NO_IDENTITY_MAPPER_ATTR;
|
unacceptableReasons.add(getMessage(msgID,
|
String.valueOf(configEntryDN)));
|
return false;
|
}
|
|
DN mapperDN = mapperAttr.pendingValue();
|
if (! mapperDN.equals(identityMapperDN))
|
{
|
IdentityMapper mapper = DirectoryServer.getIdentityMapper(mapperDN);
|
if (mapper == null)
|
{
|
msgID = MSGID_SASLCRAMMD5_NO_SUCH_IDENTITY_MAPPER;
|
unacceptableReasons.add(getMessage(msgID, String.valueOf(mapperDN),
|
String.valueOf(configEntryDN)));
|
return false;
|
}
|
}
|
}
|
catch (Exception e)
|
{
|
assert debugException(CLASS_NAME, "hasAcceptableConfiguration", e);
|
|
msgID = MSGID_SASLCRAMMD5_CANNOT_GET_IDENTITY_MAPPER;
|
unacceptableReasons.add(getMessage(msgID, String.valueOf(configEntryDN),
|
stackTraceToSingleLineString(e)));
|
return false;
|
}
|
|
|
// If we've gotten to this point, then everything must be OK.
|
return true;
|
}
|
|
|
|
/**
|
* Makes a best-effort attempt to apply the configuration contained in the
|
* provided entry. Information about the result of this processing should be
|
* added to the provided message list. Information should always be added to
|
* this list if a configuration change could not be applied. If detailed
|
* results are requested, then information about the changes applied
|
* successfully (and optionally about parameters that were not changed) should
|
* also be included.
|
*
|
* @param configEntry The entry containing the new configuration to
|
* apply for this component.
|
* @param detailedResults Indicates whether detailed information about the
|
* processing should be added to the list.
|
*
|
* @return Information about the result of the configuration update.
|
*/
|
public ConfigChangeResult applyNewConfiguration(ConfigEntry configEntry,
|
boolean detailedResults)
|
{
|
assert debugEnter(CLASS_NAME, "applyNewConfiguration",
|
String.valueOf(configEntry),
|
String.valueOf(detailedResults));
|
|
|
ResultCode resultCode = ResultCode.SUCCESS;
|
boolean adminActionRequired = false;
|
ArrayList<String> messages = new ArrayList<String>();
|
|
|
// Look at the identity mapper configuration.
|
DN newIdentityMapperDN = null;
|
IdentityMapper newIdentityMapper = null;
|
int msgID = MSGID_SASLCRAMMD5_DESCRIPTION_IDENTITY_MAPPER_DN;
|
DNConfigAttribute mapperStub =
|
new DNConfigAttribute(ATTR_IDMAPPER_DN, getMessage(msgID), true, false,
|
false);
|
try
|
{
|
DNConfigAttribute mapperAttr =
|
(DNConfigAttribute) configEntry.getConfigAttribute(mapperStub);
|
if (mapperAttr == null)
|
{
|
msgID = MSGID_SASLCRAMMD5_NO_IDENTITY_MAPPER_ATTR;
|
messages.add(getMessage(msgID, String.valueOf(configEntryDN)));
|
|
resultCode = ResultCode.CONSTRAINT_VIOLATION;
|
}
|
else
|
{
|
newIdentityMapperDN = mapperAttr.pendingValue();
|
if (! newIdentityMapperDN.equals(identityMapperDN))
|
{
|
newIdentityMapper =
|
DirectoryServer.getIdentityMapper(newIdentityMapperDN);
|
if (newIdentityMapper == null)
|
{
|
msgID = MSGID_SASLCRAMMD5_NO_SUCH_IDENTITY_MAPPER;
|
messages.add(getMessage(msgID, String.valueOf(newIdentityMapperDN),
|
String.valueOf(configEntryDN)));
|
|
resultCode = ResultCode.CONSTRAINT_VIOLATION;
|
}
|
}
|
}
|
}
|
catch (Exception e)
|
{
|
assert debugException(CLASS_NAME, "applyNewConfiguration", e);
|
|
msgID = MSGID_SASLCRAMMD5_CANNOT_GET_IDENTITY_MAPPER;
|
messages.add(getMessage(msgID, String.valueOf(configEntryDN),
|
stackTraceToSingleLineString(e)));
|
resultCode = DirectoryServer.getServerErrorResultCode();
|
}
|
|
|
// If everything has been successful, then apply any changes that were made.
|
if (resultCode == ResultCode.SUCCESS)
|
{
|
if ((newIdentityMapperDN != null) && (identityMapper != null))
|
{
|
identityMapperDN = newIdentityMapperDN;
|
identityMapper = newIdentityMapper;
|
|
if (detailedResults)
|
{
|
msgID = MSGID_SASLCRAMMD5_UPDATED_IDENTITY_MAPPER;
|
messages.add(getMessage(msgID, String.valueOf(configEntryDN),
|
String.valueOf(identityMapperDN)));
|
}
|
}
|
}
|
|
|
// Return the result to the caller.
|
return new ConfigChangeResult(resultCode, adminActionRequired, messages);
|
}
|
|
|
|
/**
|
* Indicates whether the specified SASL mechanism is password-based or uses
|
* some other form of credentials (e.g., an SSL client certificate or Kerberos
|
* ticket).
|
*
|
* @param mechanism The name of the mechanism for which to make the
|
* determination. This will only be invoked with names of
|
* mechanisms for which this handler has previously
|
* registered.
|
*
|
* @return <CODE>true</CODE> if this SASL mechanism is password-based, or
|
* <CODE>false</CODE> if it uses some other form of credentials.
|
*/
|
public boolean isPasswordBased(String mechanism)
|
{
|
assert debugEnter(CLASS_NAME, "isPasswordBased", String.valueOf(mechanism));
|
|
// This is a password-based mechanism.
|
return true;
|
}
|
|
|
|
/**
|
* Indicates whether the specified SASL mechanism should be considered secure
|
* (i.e., it does not expose the authentication credentials in a manner that
|
* is useful to a third-party observer, and other aspects of the
|
* authentication are generally secure).
|
*
|
* @param mechanism The name of the mechanism for which to make the
|
* determination. This will only be invoked with names of
|
* mechanisms for which this handler has previously
|
* registered.
|
*
|
* @return <CODE>true</CODE> if this SASL mechanism should be considered
|
* secure, or <CODE>false</CODE> if not.
|
*/
|
public boolean isSecure(String mechanism)
|
{
|
assert debugEnter(CLASS_NAME, "isSecure", String.valueOf(mechanism));
|
|
// This may be considered a secure mechanism.
|
return true;
|
}
|
}
|
