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/*
* Copyright 2009-2021 Ping Identity Corporation
* All Rights Reserved.
*/
/*
* Copyright 2009-2021 Ping Identity Corporation
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/*
* Copyright (C) 2009-2021 Ping Identity Corporation
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License (GPLv2 only)
* or the terms of the GNU Lesser General Public License (LGPLv2.1 only)
* as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, see .
*/
package com.unboundid.ldap.protocol;
import java.util.ArrayList;
import java.util.Collections;
import java.util.Iterator;
import java.util.List;
import com.unboundid.asn1.ASN1Buffer;
import com.unboundid.asn1.ASN1BufferSequence;
import com.unboundid.asn1.ASN1Element;
import com.unboundid.asn1.ASN1Enumerated;
import com.unboundid.asn1.ASN1OctetString;
import com.unboundid.asn1.ASN1Sequence;
import com.unboundid.asn1.ASN1StreamReader;
import com.unboundid.asn1.ASN1StreamReaderSequence;
import com.unboundid.ldap.sdk.Control;
import com.unboundid.ldap.sdk.ExtendedResult;
import com.unboundid.ldap.sdk.LDAPException;
import com.unboundid.ldap.sdk.LDAPResult;
import com.unboundid.ldap.sdk.ResultCode;
import com.unboundid.util.Debug;
import com.unboundid.util.InternalUseOnly;
import com.unboundid.util.NotMutable;
import com.unboundid.util.NotNull;
import com.unboundid.util.Nullable;
import com.unboundid.util.StaticUtils;
import com.unboundid.util.ThreadSafety;
import com.unboundid.util.ThreadSafetyLevel;
import com.unboundid.util.Validator;
import static com.unboundid.ldap.protocol.ProtocolMessages.*;
/**
* This class provides an implementation of a extended response protocol op.
*/
@InternalUseOnly()
@NotMutable()
@ThreadSafety(level=ThreadSafetyLevel.COMPLETELY_THREADSAFE)
public final class ExtendedResponseProtocolOp
implements ProtocolOp
{
/**
* The BER type for the response OID element.
*/
public static final byte TYPE_RESPONSE_OID = (byte) 0x8A;
/**
* The BER type for the response value element.
*/
public static final byte TYPE_RESPONSE_VALUE = (byte) 0x8B;
/**
* The serial version UID for this serializable class.
*/
private static final long serialVersionUID = -7757619031268544913L;
// The value for this extended response.
@Nullable private final ASN1OctetString responseValue;
// The result code for this extended response.
private final int resultCode;
// The referral URLs for this extended response.
@NotNull private final List referralURLs;
// The diagnostic message for this extended response.
@Nullable private final String diagnosticMessage;
// The matched DN for this extended response.
@Nullable private final String matchedDN;
// The OID for this extended response.
@Nullable private final String responseOID;
/**
* Creates a new instance of this extended response protocol op with the
* provided information.
*
* @param resultCode The result code for this response.
* @param matchedDN The matched DN for this response, if available.
* @param diagnosticMessage The diagnostic message for this response, if
* any.
* @param referralURLs The list of referral URLs for this response, if
* any.
* @param responseOID The response OID for this response, if any.
* @param responseValue The value for this response, if any.
*/
public ExtendedResponseProtocolOp(final int resultCode,
@Nullable final String matchedDN,
@Nullable final String diagnosticMessage,
@Nullable final List referralURLs,
@Nullable final String responseOID,
@Nullable final ASN1OctetString responseValue)
{
this.resultCode = resultCode;
this.matchedDN = matchedDN;
this.diagnosticMessage = diagnosticMessage;
this.responseOID = responseOID;
if (referralURLs == null)
{
this.referralURLs = Collections.emptyList();
}
else
{
this.referralURLs = Collections.unmodifiableList(referralURLs);
}
if (responseValue == null)
{
this.responseValue = null;
}
else
{
this.responseValue =
new ASN1OctetString(TYPE_RESPONSE_VALUE, responseValue.getValue());
}
}
/**
* Creates a new extended response protocol op from the provided extended
* result object.
*
* @param result The extended result object to use to create this protocol
* op.
*/
public ExtendedResponseProtocolOp(@NotNull final LDAPResult result)
{
resultCode = result.getResultCode().intValue();
matchedDN = result.getMatchedDN();
diagnosticMessage = result.getDiagnosticMessage();
referralURLs = StaticUtils.toList(result.getReferralURLs());
if (result instanceof ExtendedResult)
{
final ExtendedResult r = (ExtendedResult) result;
responseOID = r.getOID();
responseValue = r.getValue();
}
else
{
responseOID = null;
responseValue = null;
}
}
/**
* Creates a new extended response protocol op read from the provided ASN.1
* stream reader.
*
* @param reader The ASN.1 stream reader from which to read the extended
* response.
*
* @throws LDAPException If a problem occurs while reading or parsing the
* extended response.
*/
ExtendedResponseProtocolOp(@NotNull final ASN1StreamReader reader)
throws LDAPException
{
try
{
final ASN1StreamReaderSequence opSequence = reader.beginSequence();
resultCode = reader.readEnumerated();
String s = reader.readString();
Validator.ensureNotNull(s);
if (s.isEmpty())
{
matchedDN = null;
}
else
{
matchedDN = s;
}
s = reader.readString();
Validator.ensureNotNull(s);
if (s.isEmpty())
{
diagnosticMessage = null;
}
else
{
diagnosticMessage = s;
}
ASN1OctetString value = null;
String oid = null;
final ArrayList refs = new ArrayList<>(1);
while (opSequence.hasMoreElements())
{
final byte type = (byte) reader.peek();
if (type == GenericResponseProtocolOp.TYPE_REFERRALS)
{
final ASN1StreamReaderSequence refSequence = reader.beginSequence();
while (refSequence.hasMoreElements())
{
refs.add(reader.readString());
}
}
else if (type == TYPE_RESPONSE_OID)
{
oid = reader.readString();
}
else if (type == TYPE_RESPONSE_VALUE)
{
value = new ASN1OctetString(type, reader.readBytes());
}
else
{
throw new LDAPException(ResultCode.DECODING_ERROR,
ERR_EXTENDED_RESPONSE_INVALID_ELEMENT.get(
StaticUtils.toHex(type)));
}
}
referralURLs = Collections.unmodifiableList(refs);
responseOID = oid;
responseValue = value;
}
catch (final LDAPException le)
{
Debug.debugException(le);
throw le;
}
catch (final Exception e)
{
Debug.debugException(e);
throw new LDAPException(ResultCode.DECODING_ERROR,
ERR_EXTENDED_RESPONSE_CANNOT_DECODE.get(
StaticUtils.getExceptionMessage(e)), e);
}
}
/**
* Retrieves the result code for this extended response.
*
* @return The result code for this extended response.
*/
public int getResultCode()
{
return resultCode;
}
/**
* Retrieves the matched DN for this extended response, if any.
*
* @return The matched DN for this extended response, or {@code null} if
* there is no matched DN.
*/
@Nullable()
public String getMatchedDN()
{
return matchedDN;
}
/**
* Retrieves the diagnostic message for this extended response, if any.
*
* @return The diagnostic message for this extended response, or {@code null}
* if there is no diagnostic message.
*/
@Nullable()
public String getDiagnosticMessage()
{
return diagnosticMessage;
}
/**
* Retrieves the list of referral URLs for this extended response.
*
* @return The list of referral URLs for this extended response, or an empty
* list if there are no referral URLs.
*/
@NotNull()
public List getReferralURLs()
{
return referralURLs;
}
/**
* Retrieves the OID for this extended response, if any.
*
* @return The OID for this extended response, or {@code null} if there is no
* response OID.
*/
@Nullable()
public String getResponseOID()
{
return responseOID;
}
/**
* Retrieves the value for this extended response, if any.
*
* @return The value for this extended response, or {@code null} if there is
* no response value.
*/
@Nullable()
public ASN1OctetString getResponseValue()
{
return responseValue;
}
/**
* {@inheritDoc}
*/
@Override()
public byte getProtocolOpType()
{
return LDAPMessage.PROTOCOL_OP_TYPE_EXTENDED_RESPONSE;
}
/**
* {@inheritDoc}
*/
@Override()
@NotNull()
public ASN1Element encodeProtocolOp()
{
final ArrayList elements = new ArrayList<>(6);
elements.add(new ASN1Enumerated(getResultCode()));
final String mdn = getMatchedDN();
if (mdn == null)
{
elements.add(new ASN1OctetString());
}
else
{
elements.add(new ASN1OctetString(mdn));
}
final String dm = getDiagnosticMessage();
if (dm == null)
{
elements.add(new ASN1OctetString());
}
else
{
elements.add(new ASN1OctetString(dm));
}
final List refs = getReferralURLs();
if (! refs.isEmpty())
{
final ArrayList refElements = new ArrayList<>(refs.size());
for (final String r : refs)
{
refElements.add(new ASN1OctetString(r));
}
elements.add(new ASN1Sequence(GenericResponseProtocolOp.TYPE_REFERRALS,
refElements));
}
if (responseOID != null)
{
elements.add(new ASN1OctetString(TYPE_RESPONSE_OID, responseOID));
}
if (responseValue != null)
{
elements.add(responseValue);
}
return new ASN1Sequence(LDAPMessage.PROTOCOL_OP_TYPE_EXTENDED_RESPONSE,
elements);
}
/**
* Decodes the provided ASN.1 element as an extended response protocol op.
*
* @param element The ASN.1 element to be decoded.
*
* @return The decoded extended response protocol op.
*
* @throws LDAPException If the provided ASN.1 element cannot be decoded as
* an extended response protocol op.
*/
@NotNull()
public static ExtendedResponseProtocolOp decodeProtocolOp(
@NotNull final ASN1Element element)
throws LDAPException
{
try
{
final ASN1Element[] elements =
ASN1Sequence.decodeAsSequence(element).elements();
final int resultCode =
ASN1Enumerated.decodeAsEnumerated(elements[0]).intValue();
final String matchedDN;
final String md =
ASN1OctetString.decodeAsOctetString(elements[1]).stringValue();
if (! md.isEmpty())
{
matchedDN = md;
}
else
{
matchedDN = null;
}
final String diagnosticMessage;
final String dm =
ASN1OctetString.decodeAsOctetString(elements[2]).stringValue();
if (! dm.isEmpty())
{
diagnosticMessage = dm;
}
else
{
diagnosticMessage = null;
}
ASN1OctetString responseValue = null;
List referralURLs = null;
String responseOID = null;
if (elements.length > 3)
{
for (int i=3; i < elements.length; i++)
{
switch (elements[i].getType())
{
case GenericResponseProtocolOp.TYPE_REFERRALS:
final ASN1Element[] refElements =
ASN1Sequence.decodeAsSequence(elements[3]).elements();
referralURLs = new ArrayList<>(refElements.length);
for (final ASN1Element e : refElements)
{
referralURLs.add(
ASN1OctetString.decodeAsOctetString(e).stringValue());
}
break;
case TYPE_RESPONSE_OID:
responseOID = ASN1OctetString.decodeAsOctetString(elements[i]).
stringValue();
break;
case TYPE_RESPONSE_VALUE:
responseValue = ASN1OctetString.decodeAsOctetString(elements[i]);
break;
default:
throw new LDAPException(ResultCode.DECODING_ERROR,
ERR_EXTENDED_RESPONSE_INVALID_ELEMENT.get(
StaticUtils.toHex(elements[i].getType())));
}
}
}
return new ExtendedResponseProtocolOp(resultCode, matchedDN,
diagnosticMessage, referralURLs, responseOID, responseValue);
}
catch (final LDAPException le)
{
Debug.debugException(le);
throw le;
}
catch (final Exception e)
{
Debug.debugException(e);
throw new LDAPException(ResultCode.DECODING_ERROR,
ERR_EXTENDED_RESPONSE_CANNOT_DECODE.get(
StaticUtils.getExceptionMessage(e)),
e);
}
}
/**
* {@inheritDoc}
*/
@Override()
public void writeTo(@NotNull final ASN1Buffer buffer)
{
final ASN1BufferSequence opSequence =
buffer.beginSequence(LDAPMessage.PROTOCOL_OP_TYPE_EXTENDED_RESPONSE);
buffer.addEnumerated(resultCode);
buffer.addOctetString(matchedDN);
buffer.addOctetString(diagnosticMessage);
if (! referralURLs.isEmpty())
{
final ASN1BufferSequence refSequence =
buffer.beginSequence(GenericResponseProtocolOp.TYPE_REFERRALS);
for (final String s : referralURLs)
{
buffer.addOctetString(s);
}
refSequence.end();
}
if (responseOID != null)
{
buffer.addOctetString(TYPE_RESPONSE_OID, responseOID);
}
if (responseValue != null)
{
buffer.addOctetString(TYPE_RESPONSE_VALUE, responseValue.getValue());
}
opSequence.end();
}
/**
* Creates a extended result from this protocol op.
*
* @param controls The set of controls to include in the extended result.
* It may be empty or {@code null} if no controls should be
* included.
*
* @return The extended result that was created.
*/
@NotNull()
public ExtendedResult toExtendedResult(@Nullable final Control... controls)
{
final String[] referralArray = new String[referralURLs.size()];
referralURLs.toArray(referralArray);
return new ExtendedResult(-1, ResultCode.valueOf(resultCode),
diagnosticMessage, matchedDN, referralArray, responseOID,
responseValue, controls);
}
/**
* Retrieves a string representation of this protocol op.
*
* @return A string representation of this protocol op.
*/
@Override()
@NotNull()
public String toString()
{
final StringBuilder buffer = new StringBuilder();
toString(buffer);
return buffer.toString();
}
/**
* {@inheritDoc}
*/
@Override()
public void toString(@NotNull final StringBuilder buffer)
{
buffer.append("ExtendedResponseProtocolOp(resultCode=");
buffer.append(resultCode);
if (matchedDN != null)
{
buffer.append(", matchedDN='");
buffer.append(matchedDN);
buffer.append('\'');
}
if (diagnosticMessage != null)
{
buffer.append(", diagnosticMessage='");
buffer.append(diagnosticMessage);
buffer.append('\'');
}
if (! referralURLs.isEmpty())
{
buffer.append(", referralURLs={");
final Iterator iterator = referralURLs.iterator();
while (iterator.hasNext())
{
buffer.append('\'');
buffer.append(iterator.next());
buffer.append('\'');
if (iterator.hasNext())
{
buffer.append(',');
}
}
buffer.append('}');
}
if (responseOID != null)
{
buffer.append(", responseOID='");
buffer.append(responseOID);
buffer.append('\'');
}
buffer.append(')');
}
}
