/*
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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 2006-2007 Sun Microsystems, Inc.
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*/
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package org.opends.server.controls;
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import org.opends.server.protocols.asn1.ASN1Element;
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import org.opends.server.protocols.asn1.ASN1Exception;
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import org.opends.server.protocols.asn1.ASN1OctetString;
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import org.opends.server.protocols.ldap.LDAPException;
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import org.opends.server.protocols.ldap.LDAPFilter;
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import org.opends.server.protocols.ldap.LDAPResultCode;
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import org.opends.server.types.Control;
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import org.opends.server.types.DirectoryException;
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import org.opends.server.types.SearchFilter;
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import org.opends.server.types.DebugLogLevel;
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import static org.opends.server.loggers.debug.DebugLogger.debugCought;
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import static org.opends.server.loggers.debug.DebugLogger.debugEnabled;
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import static org.opends.server.messages.MessageHandler.*;
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import static org.opends.server.messages.ProtocolMessages.*;
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import static org.opends.server.util.ServerConstants.*;
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/**
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* This class implements the LDAP assertion request control as defined in RFC
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* 4528. This control makes it possible to conditionally perform an operation
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* if a given assertion is true. In particular, the associated operation should
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* only be processed if the target entry matches the filter contained in this
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* control.
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*/
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public class LDAPAssertionRequestControl
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extends Control
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{
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// The unparsed LDAP search filter contained in the request from the client.
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private LDAPFilter rawFilter;
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// The processed search filter
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private SearchFilter filter;
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/**
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* Creates a new instance of this LDAP assertion request control with the
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* provided information.
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*
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* @param isCritical Indicates whether support for this control should be
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* considered a critical part of the server processing.
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* @param rawFilter The unparsed LDAP search filter contained in the
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* request from the client.
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*/
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public LDAPAssertionRequestControl(boolean isCritical, LDAPFilter rawFilter)
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{
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super(OID_LDAP_ASSERTION, isCritical,
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new ASN1OctetString(rawFilter.encode().encode()));
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this.rawFilter = rawFilter;
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filter = null;
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}
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/**
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* Creates a new instance of this LDAP assertion request control with the
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* provided information.
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*
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* @param oid The OID to use for this control.
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* @param isCritical Indicates whether support for this control should be
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* considered a critical part of the server processing.
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* @param rawFilter The unparsed LDAP search filter contained in the
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* request from the client.
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*/
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public LDAPAssertionRequestControl(String oid, boolean isCritical,
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LDAPFilter rawFilter)
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{
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super(oid, isCritical, new ASN1OctetString(rawFilter.encode().encode()));
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this.rawFilter = rawFilter;
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filter = null;
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}
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/**
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* Creates a new instance of this LDAP assertion request control with the
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* provided information.
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*
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* @param oid The OID to use for this control.
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* @param isCritical Indicates whether support for this control should be
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* considered a critical part of the server processing.
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* @param rawFilter The unparsed LDAP search filter contained in the
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* request from the client.
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* @param encodedValue The pre-encoded value for this control.
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*/
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private LDAPAssertionRequestControl(String oid, boolean isCritical,
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LDAPFilter rawFilter,
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ASN1OctetString encodedValue)
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{
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super(oid, isCritical, encodedValue);
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this.rawFilter = rawFilter;
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filter = null;
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}
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/**
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* Creates a new LDAP assertion request control from the contents of the
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* provided control.
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*
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* @param control The generic control containing the information to use to
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* create this LDAP assertion request control.
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*
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* @return The LDAP assertion control decoded from the provided control.
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*
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* @throws LDAPException If this control cannot be decoded as a valid LDAP
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* assertion control.
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*/
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public static LDAPAssertionRequestControl decodeControl(Control control)
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throws LDAPException
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{
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if (! control.hasValue())
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{
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int msgID = MSGID_LDAPASSERT_NO_CONTROL_VALUE;
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String message = getMessage(msgID);
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throw new LDAPException(LDAPResultCode.PROTOCOL_ERROR, msgID, message);
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}
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ASN1Element valueElement;
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try
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{
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valueElement = ASN1Element.decode(control.getValue().value());
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}
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catch (ASN1Exception ae)
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{
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if (debugEnabled())
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{
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debugCought(DebugLogLevel.ERROR, ae);
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}
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int msgID = MSGID_LDAPASSERT_INVALID_CONTROL_VALUE;
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String message = getMessage(msgID, ae.getMessage());
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throw new LDAPException(LDAPResultCode.PROTOCOL_ERROR, msgID, message,
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ae);
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}
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return new LDAPAssertionRequestControl(control.getOID(),
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control.isCritical(),
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LDAPFilter.decode(valueElement),
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control.getValue());
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}
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/**
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* Retrieves the raw, unparsed filter from the request control.
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*
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* @return The raw, unparsed filter from the request control.
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*/
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public LDAPFilter getRawFilter()
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{
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return rawFilter;
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}
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/**
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* Sets the raw, unparsed filter from the request control. This method should
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* only be called by pre-parse plugins.
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*
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* @param rawFilter The raw, unparsed filter from the request control.
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*/
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public void setRawFilter(LDAPFilter rawFilter)
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{
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this.rawFilter = rawFilter;
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this.filter = null;
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setValue(new ASN1OctetString(rawFilter.encode().encode()));
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}
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/**
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* Retrieves the processed search filter for this control.
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*
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* @return The processed search filter for this control.
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*
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* @throws DirectoryException If a problem occurs while attempting to
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* process the search filter.
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*/
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public SearchFilter getSearchFilter()
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throws DirectoryException
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{
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if (filter == null)
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{
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filter = rawFilter.toSearchFilter();
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}
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return filter;
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}
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/**
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* Retrieves a string representation of this LDAP assertion request control.
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*
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* @return A string representation of this LDAP assertion request control.
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*/
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public String toString()
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{
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StringBuilder buffer = new StringBuilder();
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toString(buffer);
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return buffer.toString();
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}
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/**
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* Appends a string representation of this LDAP assertion request control to
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* the provided buffer.
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*
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* @param buffer The buffer to which the information should be appended.
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*/
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public void toString(StringBuilder buffer)
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{
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buffer.append("LDAPAssertionRequestControl(criticality=");
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buffer.append(isCritical());
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buffer.append(",filter=\"");
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rawFilter.toString(buffer);
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buffer.append("\")");
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}
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}
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