/*
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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 2009 Sun Microsystems, Inc.
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*/
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package org.opends.server.controls;
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import org.opends.messages.Message;
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import org.opends.server.types.*;
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import org.opends.server.protocols.asn1.*;
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import static org.opends.server.protocols.asn1.ASN1Constants.
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UNIVERSAL_OCTET_STRING_TYPE;
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import static org.opends.server.util.ServerConstants.OID_GET_EFFECTIVE_RIGHTS;
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import org.opends.server.core.DirectoryServer;
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import static org.opends.messages.ProtocolMessages.*;
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import static org.opends.server.loggers.debug.DebugLogger.*;
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import org.opends.server.loggers.debug.DebugTracer;
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import java.util.List;
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import java.util.LinkedList;
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import java.io.IOException;
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/**
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* This class partially implements the geteffectiverights control as defined
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* in draft-ietf-ldapext-acl-model-08.txt. The main differences are:
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*
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* - The response control is not supported. Instead the dseecompat
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* geteffectiverights control implementation creates attributes containing
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* right information strings and adds those attributes to the
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* entry being returned. The attribute type names are dynamically created;
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* see the dseecompat's AciGetEffectiveRights class for details.
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*
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* - The dseecompat implementation allows additional attribute types
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* in the request control for which rights information can be returned.
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* These are known as the specified attribute types.
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*
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* The dseecompat request control value is the following:
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*
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* <BR>
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* <PRE>
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* GetRightsControl ::= SEQUENCE {
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* authzId authzId
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* attributes SEQUENCE OF AttributeType
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* }
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*
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* -- Only the "dn:DN form is supported.
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*
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* </PRE>
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*
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**/
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public class GetEffectiveRightsRequestControl extends Control
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{
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/**
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* ControlDecoder implentation to decode this control from a ByteString.
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*/
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private static final class Decoder
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implements ControlDecoder<GetEffectiveRightsRequestControl>
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{
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/**
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* {@inheritDoc}
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*/
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public GetEffectiveRightsRequestControl decode(boolean isCritical,
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ByteString value) throws DirectoryException
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{
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// If the value is null create a GetEffectiveRightsRequestControl
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// class with null authzDN and attribute list, else try to
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// decode the value.
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if (value == null)
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return new GetEffectiveRightsRequestControl(isCritical, (DN)null,
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(List<AttributeType>)null);
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else
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{
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ASN1Reader reader = ASN1.getReader(value);
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DN authzDN;
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List<AttributeType> attrs=null;
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String authzIDString="";
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try {
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reader.readStartSequence();
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authzIDString = reader.readOctetStringAsString();
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String lowerAuthzIDString = authzIDString.toLowerCase();
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//Make sure authzId starts with "dn:" and is a valid DN.
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if (lowerAuthzIDString.startsWith("dn:"))
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authzDN = DN.decode(authzIDString.substring(3));
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else {
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Message message = INFO_GETEFFECTIVERIGHTS_INVALID_AUTHZID.get(
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lowerAuthzIDString);
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throw new DirectoryException(ResultCode.PROTOCOL_ERROR, message);
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}
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//There is an sequence containing an attribute list, try to decode it.
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if(reader.hasNextElement()) {
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AttributeType attributeType;
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attrs = new LinkedList<AttributeType>();
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reader.readStartSequence();
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while(reader.hasNextElement()) {
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//Decode as an octet string.
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String attrStr = reader.readOctetStringAsString();
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//Get an attribute type for it and add to the list.
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if((attributeType =
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DirectoryServer.getAttributeType(attrStr)) == null)
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attributeType =
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DirectoryServer.getDefaultAttributeType(attrStr);
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attrs.add(attributeType);
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}
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reader.readEndSequence();
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}
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reader.readEndSequence();
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} catch (ASN1Exception e) {
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if (debugEnabled()) {
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TRACER.debugCaught(DebugLogLevel.ERROR, e);
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}
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Message message =
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INFO_GETEFFECTIVERIGHTS_DECODE_ERROR.get(e.getMessage());
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throw new DirectoryException(ResultCode.PROTOCOL_ERROR, message);
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}
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return new GetEffectiveRightsRequestControl(isCritical,
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authzDN, attrs);
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}
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}
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public String getOID()
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{
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return OID_GET_EFFECTIVE_RIGHTS;
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}
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}
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/**
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* The Control Decoder that can be used to decode this control.
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*/
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public static final ControlDecoder<GetEffectiveRightsRequestControl> DECODER =
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new Decoder();
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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 representing the authzId. May be null.
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private DN authzDN=null;
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//The raw DN representing the authzId. May be null.
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private String rawAuthzDN=null;
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//The list of additional attribute types to return rights for. May be null.
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private List<AttributeType> attrs=null;
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//The raw DN representing the authzId. May be null.
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private List<String> rawAttrs=null;
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/**
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* Create a new geteffectiverights control with the specified authzDN and
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* an attribute list.
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*
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* @param authzDN The authzDN.
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*
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* @param attrs The list of additional attributes to be returned.
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*/
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public GetEffectiveRightsRequestControl(DN authzDN,
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List<AttributeType> attrs) {
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this(true, authzDN, attrs);
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}
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/**
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* Create a new geteffectiverights control with the specified authzDN and
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* an attribute list.
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*
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* @param isCritical Indicates whether this control should be
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* considered critical in processing the
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* request.
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* @param authzDN The authzDN.
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* @param attrs The list of additional attributes to be returned.
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*/
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public GetEffectiveRightsRequestControl(boolean isCritical, DN authzDN,
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List<AttributeType> attrs) {
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super(OID_GET_EFFECTIVE_RIGHTS, isCritical);
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this.authzDN=authzDN;
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this.attrs=attrs;
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}
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/**
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* Create a new geteffectiverights control with the specified raw
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* authzDN and an attribute list.
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*
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* @param isCritical Indicates whether this control should be
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* considered critical in processing the
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* request.
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* @param authzDN The authzDN.
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* @param attrs The list of additional attributes to be returned.
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*/
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public GetEffectiveRightsRequestControl(boolean isCritical,
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String authzDN,
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List<String> attrs)
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{
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super(OID_GET_EFFECTIVE_RIGHTS, isCritical);
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this.rawAuthzDN=authzDN;
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this.rawAttrs=attrs;
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}
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/**
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* Writes this control's value to an ASN.1 writer. The value (if any) must be
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* written as an ASN1OctetString.
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*
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* @param writer The ASN.1 output stream to write to.
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* @throws IOException If a problem occurs while writing to the stream.
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*/
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@Override
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public void writeValue(ASN1Writer writer) throws IOException {
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writer.writeStartSequence(UNIVERSAL_OCTET_STRING_TYPE);
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writer.writeStartSequence();
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if(authzDN != null)
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{
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writer.writeOctetString("dn:" + authzDN.toString());
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}
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else if(rawAuthzDN != null)
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{
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writer.writeOctetString("dn:" + rawAuthzDN);
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}
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if(attrs != null)
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{
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writer.writeStartSequence();
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for(AttributeType attr : attrs)
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{
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writer.writeOctetString(attr.getNameOrOID());
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}
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writer.writeEndSequence();
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}
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else if(rawAttrs != null)
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{
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writer.writeStartSequence();
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for(String attr : rawAttrs)
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{
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writer.writeOctetString(attr);
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}
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writer.writeEndSequence();
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}
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writer.writeEndSequence();
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writer.writeEndSequence();
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}
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/**
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* Return the authzDN parsed from the control.
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*
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* @return The DN representing the authzId.
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*/
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public DN getAuthzDN () {
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return authzDN;
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// TODO: what if rawAuthzDN is not null?
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}
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/**
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* Return the requested additional attributes parsed from the control. Known
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* as the specified attributes.
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*
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* @return The list containing any additional attributes to return rights
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* about.
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*/
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public List<AttributeType> getAttributes() {
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return attrs;
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}
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}
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