com.unboundid.ldap.sdk.unboundidds.controls.JSONFormattedResponseControl Maven / Gradle / Ivy
/*
* Copyright 2022 Ping Identity Corporation
* All Rights Reserved.
*/
/*
* Copyright 2022 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) 2022 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.sdk.unboundidds.controls;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Collections;
import java.util.List;
import com.unboundid.asn1.ASN1OctetString;
import com.unboundid.ldap.sdk.Control;
import com.unboundid.ldap.sdk.DecodeableControl;
import com.unboundid.ldap.sdk.IntermediateResponse;
import com.unboundid.ldap.sdk.JSONControlDecodeHelper;
import com.unboundid.ldap.sdk.LDAPException;
import com.unboundid.ldap.sdk.LDAPResult;
import com.unboundid.ldap.sdk.ResultCode;
import com.unboundid.ldap.sdk.SearchResultEntry;
import com.unboundid.ldap.sdk.SearchResultReference;
import com.unboundid.util.Debug;
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.json.JSONArray;
import com.unboundid.util.json.JSONField;
import com.unboundid.util.json.JSONObject;
import com.unboundid.util.json.JSONValue;
import static com.unboundid.ldap.sdk.unboundidds.controls.ControlMessages.*;
/**
* This class provides an implementation of a response control that may be used
* to encapsulate a set of one or more other controls represented as JSON
* objects.
*
*
* NOTE: This class, and other classes within the
* {@code com.unboundid.ldap.sdk.unboundidds} package structure, are only
* supported for use against Ping Identity, UnboundID, and
* Nokia/Alcatel-Lucent 8661 server products. These classes provide support
* for proprietary functionality or for external specifications that are not
* considered stable or mature enough to be guaranteed to work in an
* interoperable way with other types of LDAP servers.
*
*
* This control has an OID of 1.3.6.1.4.1.30221.2.5.65, and it takes a value
* that must be a JSON object that contains a single field, {@code controls},
* whose value is an array of the JSON representations of the response controls
* returned by the server. The JSON representations of the controls is the one
* generated by the {@link Control#toJSONControl()} method, and is the one
* expected by the {@link Control#decodeJSONControl} method. In particular,
* each control should have at least an {@code oid} field that specifies the OID
* for the control, and a {@code criticality} field that indicates whether the
* control is considered critical. If the control has a value, then either the
* {@code value-base64} field should be used to provide a base64-encoded
* representation of the value, or the {@code value-json} field should be used
* to provide a JSON-formatted representation of the value for controls that
* support it.
*
* As with all response controls, the criticality for JSON-formatted response
* controls should be {@code false}.
*
* @see JSONFormattedRequestControl
*/
@NotMutable()
@ThreadSafety(level=ThreadSafetyLevel.COMPLETELY_THREADSAFE)
public final class JSONFormattedResponseControl
extends Control
implements DecodeableControl
{
/**
* The OID (1.3.6.1.4.1.30221.2.5.64) for the JSON-formatted response control.
*/
@NotNull public static final String JSON_FORMATTED_RESPONSE_OID =
"1.3.6.1.4.1.30221.2.5.65";
/**
* The name of the field used to hold the array of embedded controls in the
* JSON representation of this control.
*/
@NotNull private static final String JSON_FIELD_CONTROLS = "controls";
/**
* The serial version UID for this serializable class.
*/
private static final long serialVersionUID = -5437134160392183276L;
// A JSON object with an encoded representation of the value for this control.
@NotNull private final JSONObject encodedValue;
// A list of the JSON objects representing embedded controls within this
// response control.
@NotNull private final List controlObjects;
/**
* Creates a new empty control instance that is intended to be used only for
* decoding controls via the {@code DecodeableControl} interface.
*/
JSONFormattedResponseControl()
{
encodedValue = null;
controlObjects = Collections.emptyList();
}
/**
* Creates a new instance of this control with the specified criticality and
* set of controls.
*
* @param encodedValue A JSON object with an encoded representation of
* the value for this control. It may be
* {@code null} if the control should not have a
* value.
* @param controlObjects A collection of JSON objects representing the
* response controls generated by the server. It
* must not be {@code null}, and should not be empty.
*/
private JSONFormattedResponseControl(
@NotNull final JSONObject encodedValue,
@NotNull final List controlObjects)
{
super(JSON_FORMATTED_RESPONSE_OID, false,
new ASN1OctetString(encodedValue.toSingleLineString()));
this.encodedValue = encodedValue;
this.controlObjects = controlObjects;
}
/**
* Creates a new {@code JSONFormattedResponseControl} with the provided set of
* embedded controls.
*
* @param controls The collection of controls to embed within this
* response. This must not be {@code null} or empty.
*
* @return The {@code JSONFormattedResponseControl} that was created.
*/
@NotNull()
public static JSONFormattedResponseControl createWithControls(
@NotNull final Control... controls)
{
return createWithControls(StaticUtils.toList(controls));
}
/**
* Creates a new {@code JSONFormattedResponseControl} with the provided set of
* embedded controls.
*
* @param controls The collection of controls to embed within this
* response control. This must not be {@code null} or
* empty.
*
* @return The {@code JSONFormattedResponseControl} that was created.
*/
@NotNull()
public static JSONFormattedResponseControl createWithControls(
@NotNull final Collection controls)
{
final List controlObjects = new ArrayList<>(controls.size());
for (final Control c : controls)
{
controlObjects.add(c.toJSONControl());
}
final JSONObject encodedValue = new JSONObject(
new JSONField(JSON_FIELD_CONTROLS, new JSONArray(controlObjects)));
return new JSONFormattedResponseControl(encodedValue,
Collections.unmodifiableList(controlObjects));
}
/**
* Creates a new {@code JSONFormattedResponseControl} with the provided set of
* embedded JSON objects.
*
* @param controlObjects The collection of JSON objects that represent the
* encoded controls to embed within this response
* control. This must not be {@code null} or empty.
* Note that no attempt will be made to validate the
* JSON objects as controls.
*
* @return The {@code JSONFormattedResponseControl} that was created.
*/
@NotNull()
public static JSONFormattedResponseControl createWithControlObjects(
@Nullable final JSONObject... controlObjects)
{
return createWithControlObjects(StaticUtils.toList(controlObjects));
}
/**
* Creates a new {@code JSONFormattedResponseControl} with the provided set of
* embedded JSON objects.
*
* @param controlObjects The collection of JSON objects that represent the
* encoded controls to embed within this response
* control. This must not be {@code null} or empty.
* Note that no attempt will be made to validate the
* JSON objects as controls.
*
* @return The {@code JSONFormattedResponseControl} that was created.
*/
@NotNull()
public static JSONFormattedResponseControl createWithControlObjects(
@NotNull final Collection controlObjects)
{
final List controlObjectList = new ArrayList<>(controlObjects);
final JSONObject encodedValue = new JSONObject(
new JSONField(JSON_FIELD_CONTROLS, new JSONArray(controlObjectList)));
return new JSONFormattedResponseControl(encodedValue,
Collections.unmodifiableList(controlObjectList));
}
/**
* Creates a new instance of this control that is decoded from the provided
* generic control information.
* generic control. Note that if the provided control has a value, it will be
* validated to ensure that it is a JSON object containing only a
* {@code controls} field whose value is an array of JSON objects that appear
* to be well-formed generic JSON controls, but it will not make any attempt
* to validate in a control-specific manner.
*
* @param oid The OID for the control. It must not be {@code null}.
* @param isCritical Indicates whether the control is considered critical.
* @param value The value for this control. It should not be
* {@code null} because this control requires a value, and
* an exception will be thrown if the given value is
* {@code null}.
*
* @throws LDAPException If a problem is encountered while attempting to
* decode the provided information as a JSON-formatted
* response control.
*/
public JSONFormattedResponseControl(@NotNull final String oid,
final boolean isCritical,
@Nullable final ASN1OctetString value)
throws LDAPException
{
super(oid, isCritical, value);
if (value == null)
{
throw new LDAPException(ResultCode.DECODING_ERROR,
ERR_JSON_FORMATTED_RESPONSE_NO_VALUE.get());
}
try
{
encodedValue = new JSONObject(value.stringValue());
}
catch (final Exception e)
{
Debug.debugException(e);
throw new LDAPException(ResultCode.DECODING_ERROR,
ERR_JSON_FORMATTED_RESPONSE_VALUE_NOT_JSON.get(), e);
}
final List unrecognizedFields =
JSONControlDecodeHelper.getControlObjectUnexpectedFields(
encodedValue, JSON_FIELD_CONTROLS);
if (! unrecognizedFields.isEmpty())
{
throw new LDAPException(ResultCode.DECODING_ERROR,
ERR_JSON_FORMATTED_RESPONSE_UNRECOGNIZED_FIELD.get(
unrecognizedFields.get(0)));
}
final List controlValues =
encodedValue.getFieldAsArray(JSON_FIELD_CONTROLS);
if (controlValues == null)
{
throw new LDAPException(ResultCode.DECODING_ERROR,
ERR_JSON_FORMATTED_RESPONSE_VALUE_MISSING_CONTROLS.get(
JSON_FIELD_CONTROLS));
}
if (controlValues.isEmpty())
{
throw new LDAPException(ResultCode.DECODING_ERROR,
ERR_JSON_FORMATTED_RESPONSE_VALUE_EMPTY_CONTROLS.get(
JSON_FIELD_CONTROLS));
}
final List controlObjectsList =
new ArrayList<>(controlValues.size());
for (final JSONValue controlValue : controlValues)
{
if (controlValue instanceof JSONObject)
{
final JSONObject embeddedControlObject = (JSONObject) controlValue;
try
{
new JSONControlDecodeHelper(embeddedControlObject, true, true, false);
controlObjectsList.add(embeddedControlObject);
}
catch (final LDAPException e)
{
Debug.debugException(e);
throw new LDAPException(ResultCode.DECODING_ERROR,
ERR_JSON_FORMATTED_RESPONSE_VALUE_NOT_CONTROL.get(
JSON_FIELD_CONTROLS,
embeddedControlObject.toSingleLineString(), e.getMessage()),
e);
}
}
else
{
throw new LDAPException(ResultCode.DECODING_ERROR,
ERR_JSON_FORMATTED_RESPONSE_VALUE_CONTROL_NOT_OBJECT.get(
JSON_FIELD_CONTROLS));
}
}
controlObjects = Collections.unmodifiableList(controlObjectsList);
}
/**
* {@inheritDoc}
*/
@Override()
@NotNull()
public JSONFormattedResponseControl decodeControl(
@NotNull final String oid,
final boolean isCritical,
@Nullable final ASN1OctetString value)
throws LDAPException
{
return new JSONFormattedResponseControl(oid, isCritical, value);
}
/**
* Retrieves a list of the JSON objects that represent the embedded response
* controls. These JSON objects may not have been validated to ensure that
* they represent valid controls.
*
* @return A list of the JSON objects that represent the embedded response
* controls.
*/
@NotNull()
public List getControlObjects()
{
return controlObjects;
}
/**
* Attempts to retrieve a decoded representation of the embedded response
* controls using the specified behavior.
*
* @param behavior The behavior to use when parsing JSON
* objects as controls. It must not be
* {@code null}.
* @param nonFatalDecodeMessages An optional list that may be updated with
* messages about any JSON objects that could
* not be parsed as valid controls, but that
* should not result in an exception as per
* the provided behavior. This may be
* {@code null} if no such messages are
* desired. If it is non-{@code null}, then
* the list must be updatable.
*
* @return A decoded representation of the embedded response controls, or an
* empty list if none of the embedded JSON objects can be parsed as
* valid controls but that should not result in an exception as per
* the provided behavior.
*
* @throws LDAPException If any of the JSON objects cannot be parsed as a
* valid control
*/
@NotNull()
public synchronized List decodeEmbeddedControls(
@NotNull final JSONFormattedControlDecodeBehavior behavior,
@Nullable final List nonFatalDecodeMessages)
throws LDAPException
{
// Iterate through the controls and try to decode them.
boolean errorEncountered = false;
final List controlList = new ArrayList<>(controlObjects.size());
final List fatalMessages = new ArrayList<>(controlObjects.size());
for (final JSONObject controlObject : controlObjects)
{
// First, try to decode the JSON object as a generic control without any
// specific decoding based on its OID.
final JSONControlDecodeHelper jsonControl;
try
{
jsonControl = new JSONControlDecodeHelper(controlObject,
behavior.strict(), true, false);
}
catch (final LDAPException e)
{
Debug.debugException(e);
errorEncountered = true;
if (behavior.throwOnUnparsableObject())
{
fatalMessages.add(e.getMessage());
}
else if (nonFatalDecodeMessages != null)
{
nonFatalDecodeMessages.add(e.getMessage());
}
continue;
}
// If the control is itself an embedded JSON-formatted response control,
// see how we should handle it.
if (jsonControl.getOID().equals(JSON_FORMATTED_RESPONSE_OID))
{
if (! behavior.allowEmbeddedJSONFormattedControl())
{
final String message =
ERR_JSON_FORMATTED_RESPONSE_DISALLOWED_EMBEDDED_CONTROL.get();
if (jsonControl.getCriticality())
{
fatalMessages.add(message);
}
else if (nonFatalDecodeMessages != null)
{
nonFatalDecodeMessages.add(message);
}
continue;
}
}
// Try to actually decode the JSON object as a control, potentially using
// control-specific logic based on its OID.
try
{
controlList.add(Control.decodeJSONControl(controlObject,
behavior.strict(), false));
}
catch (final LDAPException e)
{
Debug.debugException(e);
errorEncountered = true;
if (jsonControl.getCriticality())
{
if (behavior.throwOnInvalidCriticalControl())
{
fatalMessages.add(e.getMessage());
}
else if (nonFatalDecodeMessages != null)
{
nonFatalDecodeMessages.add(e.getMessage());
}
}
else
{
if (behavior.throwOnInvalidNonCriticalControl())
{
fatalMessages.add(e.getMessage());
}
else if (nonFatalDecodeMessages != null)
{
nonFatalDecodeMessages.add(e.getMessage());
}
}
}
}
// If there are any fatal messages, then we'll throw an exception with
// them.
if (! fatalMessages.isEmpty())
{
throw new LDAPException(ResultCode.DECODING_ERROR,
StaticUtils.concatenateStrings(fatalMessages));
}
return Collections.unmodifiableList(controlList);
}
/**
* Extracts a JSON-formatted control from the provided LDAP result.
*
* @param result The LDAP result from which to retrieve the JSON-formatted
* response control.
*
* @return The JSON-formatted response control contained in the provided
* LDAP result, or {@code null} if the result did not contain a
* JSON-formatted response control.
*
* @throws LDAPException If a problem is encountered while attempting to
* decode the JSON-formatted response control
* contained in the provided LDAP result.
*/
@Nullable()
public static JSONFormattedResponseControl get(
@NotNull final LDAPResult result)
throws LDAPException
{
return get(result.getResponseControl(JSON_FORMATTED_RESPONSE_OID));
}
/**
* Extracts a JSON-formatted control from the provided search result entry.
*
* @param entry The search result entry from which to retrieve the
* JSON-formatted response control.
*
* @return The JSON-formatted response control contained in the provided
* search result entry, or {@code null} if the entry did not contain
* a JSON-formatted response control.
*
* @throws LDAPException If a problem is encountered while attempting to
* decode the JSON-formatted response control
* contained in the provided search result entry.
*/
@Nullable()
public static JSONFormattedResponseControl get(
@NotNull final SearchResultEntry entry)
throws LDAPException
{
return get(entry.getControl(JSON_FORMATTED_RESPONSE_OID));
}
/**
* Extracts a JSON-formatted control from the provided search result
* reference.
*
* @param reference The search result reference from which to retrieve the
* JSON-formatted response control.
*
* @return The JSON-formatted response control contained in the provided
* search result reference, or {@code null} if the reference did not
* contain a JSON-formatted response control.
*
* @throws LDAPException If a problem is encountered while attempting to
* decode the JSON-formatted response control
* contained in the provided search result reference.
*/
@Nullable()
public static JSONFormattedResponseControl get(
@NotNull final SearchResultReference reference)
throws LDAPException
{
return get(reference.getControl(JSON_FORMATTED_RESPONSE_OID));
}
/**
* Extracts a JSON-formatted control from the provided intermediate response.
*
* @param response The intermediate response from which to retrieve the
* JSON-formatted response control.
*
* @return The JSON-formatted response control contained in the provided
* intermediate response, or {@code null} if the response did not
* contain a JSON-formatted response control.
*
* @throws LDAPException If a problem is encountered while attempting to
* decode the JSON-formatted response control
* contained in the provided intermediate response.
*/
@Nullable()
public static JSONFormattedResponseControl get(
@NotNull final IntermediateResponse response)
throws LDAPException
{
return get(response.getControl(JSON_FORMATTED_RESPONSE_OID));
}
/**
* Retrieves the provided control as a JSON-formatted response control.
*
* @param c The control to retrieve as a JSON-formatted response control.
* It may optionally be {@code null}.
*
* @return A JSON-formatted response control that is a representation of the
* provided control, or {@code null} if the provided control is
* {@code null}.
*
* @throws LDAPException If the provided control cannot be parsed as a valid
* JSON-formatted response control.
*/
@Nullable()
private static JSONFormattedResponseControl get(@Nullable final Control c)
throws LDAPException
{
if (c == null)
{
return null;
}
if (c instanceof JSONFormattedResponseControl)
{
return (JSONFormattedResponseControl) c;
}
else
{
return new JSONFormattedResponseControl(c.getOID(), c.isCritical(),
c.getValue());
}
}
/**
* {@inheritDoc}
*/
@Override()
@NotNull()
public String getControlName()
{
return INFO_CONTROL_NAME_JSON_FORMATTED_RESPONSE.get();
}
/**
* Retrieves a representation of this JSON-formatted response control as a
* JSON object. The JSON object uses the following fields:
*
* -
* {@code oid} -- A mandatory string field whose value is the object
* identifier for this control. For the JSON-formatted response control,
* the OID is "1.3.6.1.4.1.30221.2.5.65".
*
* -
* {@code control-name} -- An optional string field whose value is a
* human-readable name for this control. This field is only intended for
* descriptive purposes, and when decoding a control, the {@code oid}
* field should be used to identify the type of control.
*
* -
* {@code criticality} -- A mandatory Boolean field used to indicate
* whether this control is considered critical.
*
* -
* {@code value-base64} -- An optional string field whose value is a
* base64-encoded representation of the raw value for this JSON-formatted
* response control. Exactly one of the {@code value-base64} and
* {@code value-json} fields must be present.
*
* -
* {@code value-json} -- An optional JSON object field whose value is a
* user-friendly representation of the value for this JSON-formatted
* response control. Exactly one of the {@code value-base64} and
* {@code value-json} fields must be present, and if the
* {@code value-json} field is used, then it will use the following
* fields:
*
* -
* {@code controls} -- An array field whose values are JSON objects
* that represent the JSON-formatted request controls to send to the
* server.
*
*
*
*
*
* @return A JSON object that contains a representation of this control.
*/
@Override()
@NotNull()
public JSONObject toJSONControl()
{
return new JSONObject(
new JSONField(JSONControlDecodeHelper.JSON_FIELD_OID,
JSON_FORMATTED_RESPONSE_OID),
new JSONField(JSONControlDecodeHelper.JSON_FIELD_CONTROL_NAME,
INFO_CONTROL_NAME_JSON_FORMATTED_RESPONSE.get()),
new JSONField(JSONControlDecodeHelper.JSON_FIELD_CRITICALITY,
isCritical()),
new JSONField(JSONControlDecodeHelper.JSON_FIELD_VALUE_JSON,
encodedValue));
}
/**
* Attempts to decode the provided object as a JSON representation of a
* JSON-formatted response control.
*
* @param controlObject The JSON object to be decoded. It must not be
* {@code null}.
* @param strict Indicates whether to use strict mode when decoding
* the provided JSON object. If this is {@code true},
* then this method will throw an exception if the
* provided JSON object contains any unrecognized
* fields. If this is {@code false}, then unrecognized
* fields will be ignored.
*
* @return The JSON-formatted response control that was decoded from the
* provided JSON object.
*
* @throws LDAPException If the provided JSON object cannot be parsed as a
* valid JSON-formatted response control.
*/
@NotNull()
public static JSONFormattedResponseControl decodeJSONControl(
@NotNull final JSONObject controlObject,
final boolean strict)
throws LDAPException
{
final JSONControlDecodeHelper jsonControl = new JSONControlDecodeHelper(
controlObject, strict, true, true);
final ASN1OctetString rawValue = jsonControl.getRawValue();
if (rawValue != null)
{
return new JSONFormattedResponseControl(jsonControl.getOID(),
jsonControl.getCriticality(), rawValue);
}
final JSONObject valueObject = jsonControl.getValueObject();
final List controlValues =
valueObject.getFieldAsArray(JSON_FIELD_CONTROLS);
if (controlValues == null)
{
throw new LDAPException(ResultCode.DECODING_ERROR,
ERR_JSON_FORMATTED_RESPONSE_DECODE_VALUE_MISSING_CONTROLS.get(
controlObject.toSingleLineString(), JSON_FIELD_CONTROLS));
}
if (controlValues.isEmpty())
{
throw new LDAPException(ResultCode.DECODING_ERROR,
ERR_JSON_FORMATTED_RESPONSE_DECODE_VALUE_EMPTY_CONTROLS.get(
controlObject.toSingleLineString(), JSON_FIELD_CONTROLS));
}
final List controlObjectsList =
new ArrayList<>(controlValues.size());
for (final JSONValue controlValue : controlValues)
{
if (controlValue instanceof JSONObject)
{
final JSONObject embeddedControlObject = (JSONObject) controlValue;
try
{
new JSONControlDecodeHelper(embeddedControlObject, strict, true,
false);
controlObjectsList.add(embeddedControlObject);
}
catch (final LDAPException e)
{
Debug.debugException(e);
throw new LDAPException(ResultCode.DECODING_ERROR,
ERR_JSON_FORMATTED_RESPONSE_DECODE_VALUE_NOT_CONTROL.get(
controlObject.toSingleLineString(), JSON_FIELD_CONTROLS,
embeddedControlObject.toSingleLineString(), e.getMessage()),
e);
}
}
else
{
throw new LDAPException(ResultCode.DECODING_ERROR,
ERR_JSON_FORMATTED_RESPONSE_DECODE_VALUE_CONTROL_NOT_OBJECT.get(
controlObject.toSingleLineString(),
JSON_FIELD_CONTROLS));
}
}
if (strict)
{
final List unrecognizedFields =
JSONControlDecodeHelper.getControlObjectUnexpectedFields(
valueObject, JSON_FIELD_CONTROLS);
if (! unrecognizedFields.isEmpty())
{
throw new LDAPException(ResultCode.DECODING_ERROR,
ERR_JSON_FORMATTED_RESPONSE_DECODE_UNRECOGNIZED_FIELD.get(
controlObject.toSingleLineString(),
unrecognizedFields.get(0)));
}
}
return new JSONFormattedResponseControl(valueObject,
Collections.unmodifiableList(controlObjectsList));
}
/**
* {@inheritDoc}
*/
@Override()
public void toString(@NotNull final StringBuilder buffer)
{
buffer.append("JSONFormattedResponseControl(isCritical=");
buffer.append(isCritical());
buffer.append(", valueObject=");
encodedValue.toSingleLineString(buffer);
buffer.append(')');
}
}
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