/*
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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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* Copyright 2008 Sun Microsystems, Inc.
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*/
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package org.opends.server.extensions;
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import java.util.Collections;
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import java.util.List;
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import java.util.Set;
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import org.opends.messages.Message;
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import org.opends.server.admin.std.server.VirtualStaticGroupImplementationCfg;
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import org.opends.server.api.Group;
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import org.opends.server.core.DirectoryServer;
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import org.opends.server.config.ConfigException;
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import org.opends.server.loggers.debug.DebugTracer;
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import org.opends.server.types.Attribute;
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import org.opends.server.types.AttributeType;
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import org.opends.server.types.AttributeValue;
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import org.opends.server.types.DebugLogLevel;
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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.MemberList;
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import org.opends.server.types.ObjectClass;
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import org.opends.server.types.ResultCode;
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import org.opends.server.types.SearchFilter;
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import org.opends.server.types.SearchScope;
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import static org.opends.messages.ExtensionMessages.*;
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import static org.opends.server.config.ConfigConstants.*;
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import static org.opends.server.loggers.debug.DebugLogger.*;
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import static org.opends.server.util.ServerConstants.*;
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import static org.opends.server.util.Validator.*;
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/**
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* This class provides a virtual static group implementation, in which
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* membership is based on membership of another group.
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*/
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public class VirtualStaticGroup
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extends Group<VirtualStaticGroupImplementationCfg>
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{
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/**
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* The tracer object for the debug logger.
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*/
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private static final DebugTracer TRACER = getTracer();
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// The DN of the entry that holds the definition for this group.
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private DN groupEntryDN;
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// The DN of the target group that will provide membership information.
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private DN targetGroupDN;
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/**
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* Creates a new, uninitialized virtual static group instance. This is
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* intended for internal use only.
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*/
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public VirtualStaticGroup()
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{
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super();
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// No initialization is required here.
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}
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/**
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* Creates a new virtual static group instance with the provided information.
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*
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* @param groupEntryDN The DN of the entry that holds the definition for
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* this group. It must not be {@code null}.
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* @param targetGroupDN The DN of the target group that will provide
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* membership information. It must not be
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* {@code null}.
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*/
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public VirtualStaticGroup(DN groupEntryDN, DN targetGroupDN)
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{
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super();
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ensureNotNull(groupEntryDN, targetGroupDN);
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this.groupEntryDN = groupEntryDN;
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this.targetGroupDN = targetGroupDN;
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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 initializeGroupImplementation(
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VirtualStaticGroupImplementationCfg configuration)
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throws ConfigException, InitializationException
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{
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// No additional initialization is required.
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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 VirtualStaticGroup newInstance(Entry groupEntry)
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throws DirectoryException
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{
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ensureNotNull(groupEntry);
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// Get the target group DN attribute from the entry, if there is one.
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DN targetDN = null;
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AttributeType targetType =
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DirectoryServer.getAttributeType(ATTR_TARGET_GROUP_DN, true);
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List<Attribute> attrList = groupEntry.getAttribute(targetType);
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if (attrList != null)
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{
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for (Attribute a : attrList)
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{
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for (AttributeValue v : a)
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{
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if (targetDN != null)
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{
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Message message = ERR_VIRTUAL_STATIC_GROUP_MULTIPLE_TARGETS.get(
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String.valueOf(groupEntry.getDN()));
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throw new DirectoryException(ResultCode.OBJECTCLASS_VIOLATION,
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message);
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}
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try
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{
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targetDN = DN.decode(v.getValue());
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}
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catch (DirectoryException de)
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{
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if (debugEnabled())
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{
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TRACER.debugCaught(DebugLogLevel.ERROR, de);
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}
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Message message = ERR_VIRTUAL_STATIC_GROUP_CANNOT_DECODE_TARGET.
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get(v.getStringValue(), String.valueOf(groupEntry.getDN()),
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de.getMessageObject());
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throw new DirectoryException(ResultCode.INVALID_ATTRIBUTE_SYNTAX,
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message, de);
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}
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}
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}
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}
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if (targetDN == null)
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{
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Message message = ERR_VIRTUAL_STATIC_GROUP_NO_TARGET.get(
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String.valueOf(groupEntry.getDN()));
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throw new DirectoryException(ResultCode.OBJECTCLASS_VIOLATION, message);
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}
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return new VirtualStaticGroup(groupEntry.getDN(), targetDN);
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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 SearchFilter getGroupDefinitionFilter()
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throws DirectoryException
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{
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// FIXME -- This needs to exclude enhanced groups once we have support for
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// them.
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return SearchFilter.createFilterFromString("(" + ATTR_OBJECTCLASS + "=" +
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OC_VIRTUAL_STATIC_GROUP + ")");
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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 boolean isGroupDefinition(Entry entry)
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{
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ensureNotNull(entry);
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// FIXME -- This needs to exclude enhanced groups once we have support for
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//them.
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ObjectClass virtualStaticGroupClass =
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DirectoryServer.getObjectClass(OC_VIRTUAL_STATIC_GROUP, true);
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return entry.hasObjectClass(virtualStaticGroupClass);
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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 DN getGroupDN()
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{
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return groupEntryDN;
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}
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/**
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* Retrieves the DN of the target group for this virtual static group.
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*
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* @return The DN of the target group for this virtual static group.
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*/
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public DN getTargetGroupDN()
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{
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return targetGroupDN;
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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 boolean supportsNestedGroups()
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{
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// Virtual static groups don't support nesting.
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return false;
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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 List<DN> getNestedGroupDNs()
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{
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// Virtual static groups don't support nesting.
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return Collections.<DN>emptyList();
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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 addNestedGroup(DN nestedGroupDN)
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throws UnsupportedOperationException, DirectoryException
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{
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// Virtual static groups don't support nesting.
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Message message = ERR_VIRTUAL_STATIC_GROUP_NESTING_NOT_SUPPORTED.get();
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throw new UnsupportedOperationException(message.toString());
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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 removeNestedGroup(DN nestedGroupDN)
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throws UnsupportedOperationException, DirectoryException
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{
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// Virtual static groups don't support nesting.
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Message message = ERR_VIRTUAL_STATIC_GROUP_NESTING_NOT_SUPPORTED.get();
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throw new UnsupportedOperationException(message.toString());
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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 boolean isMember(DN userDN, Set<DN> examinedGroups)
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throws DirectoryException
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{
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if (! examinedGroups.add(getGroupDN()))
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{
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return false;
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}
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Group targetGroup =
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DirectoryServer.getGroupManager().getGroupInstance(targetGroupDN);
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if (targetGroup == null)
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{
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Message message = ERR_VIRTUAL_STATIC_GROUP_NO_TARGET_GROUP.get(
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String.valueOf(targetGroupDN), String.valueOf(groupEntryDN));
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throw new DirectoryException(DirectoryServer.getServerErrorResultCode(),
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message);
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}
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else if (targetGroup instanceof VirtualStaticGroup)
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{
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Message message = ERR_VIRTUAL_STATIC_GROUP_TARGET_CANNOT_BE_VIRTUAL.get(
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String.valueOf(groupEntryDN), String.valueOf(targetGroupDN));
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throw new DirectoryException(ResultCode.CONSTRAINT_VIOLATION, message);
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}
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else
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{
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return targetGroup.isMember(userDN);
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}
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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 boolean isMember(Entry userEntry, Set<DN> examinedGroups)
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throws DirectoryException
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{
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if (! examinedGroups.add(getGroupDN()))
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{
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return false;
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}
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Group targetGroup =
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DirectoryServer.getGroupManager().getGroupInstance(targetGroupDN);
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if (targetGroup == null)
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{
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Message message = ERR_VIRTUAL_STATIC_GROUP_NO_TARGET_GROUP.get(
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String.valueOf(targetGroupDN), String.valueOf(groupEntryDN));
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throw new DirectoryException(DirectoryServer.getServerErrorResultCode(),
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message);
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}
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else if (targetGroup instanceof VirtualStaticGroup)
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{
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Message message = ERR_VIRTUAL_STATIC_GROUP_TARGET_CANNOT_BE_VIRTUAL.get(
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String.valueOf(groupEntryDN), String.valueOf(targetGroupDN));
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throw new DirectoryException(ResultCode.CONSTRAINT_VIOLATION, message);
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}
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else
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{
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return targetGroup.isMember(userEntry);
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}
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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 MemberList getMembers()
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throws DirectoryException
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{
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Group targetGroup =
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DirectoryServer.getGroupManager().getGroupInstance(targetGroupDN);
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if (targetGroup == null)
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{
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Message message = ERR_VIRTUAL_STATIC_GROUP_NO_TARGET_GROUP.get(
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String.valueOf(targetGroupDN), String.valueOf(groupEntryDN));
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throw new DirectoryException(DirectoryServer.getServerErrorResultCode(),
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message);
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}
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else if (targetGroup instanceof VirtualStaticGroup)
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{
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Message message = ERR_VIRTUAL_STATIC_GROUP_TARGET_CANNOT_BE_VIRTUAL.get(
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String.valueOf(groupEntryDN), String.valueOf(targetGroupDN));
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throw new DirectoryException(ResultCode.CONSTRAINT_VIOLATION, message);
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}
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else
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{
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return targetGroup.getMembers();
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}
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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 MemberList getMembers(DN baseDN, SearchScope scope,
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SearchFilter filter)
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throws DirectoryException
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{
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Group targetGroup =
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DirectoryServer.getGroupManager().getGroupInstance(targetGroupDN);
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if (targetGroup == null)
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{
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Message message = ERR_VIRTUAL_STATIC_GROUP_NO_TARGET_GROUP.get(
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String.valueOf(targetGroupDN), String.valueOf(groupEntryDN));
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throw new DirectoryException(DirectoryServer.getServerErrorResultCode(),
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message);
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}
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else if (targetGroup instanceof VirtualStaticGroup)
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{
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Message message = ERR_VIRTUAL_STATIC_GROUP_TARGET_CANNOT_BE_VIRTUAL.get(
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String.valueOf(groupEntryDN), String.valueOf(targetGroupDN));
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throw new DirectoryException(ResultCode.CONSTRAINT_VIOLATION, message);
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}
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else
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{
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return targetGroup.getMembers(baseDN, scope, filter);
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}
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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 boolean mayAlterMemberList()
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{
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return false;
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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 addMember(Entry userEntry)
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throws UnsupportedOperationException, DirectoryException
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{
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// Virtual static groups don't support altering the member list.
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Message message = ERR_VIRTUAL_STATIC_GROUP_ALTERING_MEMBERS_NOT_SUPPORTED.
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get(String.valueOf(groupEntryDN));
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throw new UnsupportedOperationException(message.toString());
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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 removeMember(DN userDN)
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throws UnsupportedOperationException, DirectoryException
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{
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// Virtual static groups don't support altering the member list.
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Message message = ERR_VIRTUAL_STATIC_GROUP_ALTERING_MEMBERS_NOT_SUPPORTED.
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get(String.valueOf(groupEntryDN));
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throw new UnsupportedOperationException(message.toString());
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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 toString(StringBuilder buffer)
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{
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buffer.append("VirtualStaticGroup(dn=");
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buffer.append(groupEntryDN);
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buffer.append(",targetGroupDN=");
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buffer.append(targetGroupDN);
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buffer.append(")");
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}
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}
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