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https://github.com/Ylianst/MeshCommander
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Fixed -kvmdatatrace issue.
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Ylian Saint-Hilaire
214
pki.js/MacData.js
Normal file
214
pki.js/MacData.js
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@@ -0,0 +1,214 @@
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import * as asn1js from "asn1js";
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import { getParametersValue, clearProps } from "pvutils";
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import DigestInfo from "./DigestInfo.js";
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//**************************************************************************************
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/**
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* Class from RFC7292
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*/
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export default class MacData
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{
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//**********************************************************************************
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/**
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* Constructor for MacData class
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* @param {Object} [parameters={}]
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* @param {Object} [parameters.schema] asn1js parsed value to initialize the class from
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*/
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constructor(parameters = {})
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{
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//region Internal properties of the object
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/**
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* @type {DigestInfo}
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* @desc mac
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*/
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this.mac = getParametersValue(parameters, "mac", MacData.defaultValues("mac"));
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/**
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* @type {OctetString}
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* @desc macSalt
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*/
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this.macSalt = getParametersValue(parameters, "macSalt", MacData.defaultValues("macSalt"));
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if("iterations" in parameters)
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/**
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* @type {number}
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* @desc iterations
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*/
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this.iterations = getParametersValue(parameters, "iterations", MacData.defaultValues("iterations"));
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//endregion
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//region If input argument array contains "schema" for this object
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if("schema" in parameters)
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this.fromSchema(parameters.schema);
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//endregion
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}
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//**********************************************************************************
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/**
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* Return default values for all class members
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* @param {string} memberName String name for a class member
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*/
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static defaultValues(memberName)
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{
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switch(memberName)
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{
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case "mac":
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return new DigestInfo();
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case "macSalt":
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return new asn1js.OctetString();
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case "iterations":
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return 1;
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default:
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throw new Error(`Invalid member name for MacData class: ${memberName}`);
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}
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}
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//**********************************************************************************
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/**
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* Compare values with default values for all class members
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* @param {string} memberName String name for a class member
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* @param {*} memberValue Value to compare with default value
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*/
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static compareWithDefault(memberName, memberValue)
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{
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switch(memberName)
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{
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case "mac":
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return ((DigestInfo.compareWithDefault("digestAlgorithm", memberValue.digestAlgorithm)) &&
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(DigestInfo.compareWithDefault("digest", memberValue.digest)));
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case "macSalt":
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return (memberValue.isEqual(MacData.defaultValues(memberName)));
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case "iterations":
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return (memberValue === MacData.defaultValues(memberName));
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default:
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throw new Error(`Invalid member name for MacData class: ${memberName}`);
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}
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}
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//**********************************************************************************
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/**
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* Return value of pre-defined ASN.1 schema for current class
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*
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* ASN.1 schema:
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* ```asn1
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* MacData ::= SEQUENCE {
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* mac DigestInfo,
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* macSalt OCTET STRING,
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* iterations INTEGER DEFAULT 1
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* -- Note: The default is for historical reasons and its use is
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* -- deprecated. A higher value, like 1024 is recommended.
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* }
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* ```
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*
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* @param {Object} parameters Input parameters for the schema
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* @returns {Object} asn1js schema object
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*/
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static schema(parameters = {})
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{
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/**
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* @type {Object}
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* @property {string} [blockName]
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* @property {string} [optional]
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* @property {string} [mac]
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* @property {string} [macSalt]
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* @property {string} [iterations]
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*/
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const names = getParametersValue(parameters, "names", {});
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return (new asn1js.Sequence({
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name: (names.blockName || ""),
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optional: (names.optional || true),
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value: [
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DigestInfo.schema(names.mac || {
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names: {
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blockName: "mac"
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}
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}),
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new asn1js.OctetString({ name: (names.macSalt || "macSalt") }),
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new asn1js.Integer({
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optional: true,
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name: (names.iterations || "iterations")
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})
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]
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}));
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}
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//**********************************************************************************
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/**
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* Convert parsed asn1js object into current class
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* @param {!Object} schema
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*/
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fromSchema(schema)
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{
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//region Clear input data first
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clearProps(schema, [
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"mac",
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"macSalt",
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"iterations"
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]);
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//endregion
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//region Check the schema is valid
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const asn1 = asn1js.compareSchema(schema,
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schema,
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MacData.schema({
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names: {
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mac: {
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names: {
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blockName: "mac"
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}
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},
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macSalt: "macSalt",
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iterations: "iterations"
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}
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})
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);
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if(asn1.verified === false)
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throw new Error("Object's schema was not verified against input data for MacData");
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//endregion
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//region Get internal properties from parsed schema
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this.mac = new DigestInfo({ schema: asn1.result.mac });
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this.macSalt = asn1.result.macSalt;
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if("iterations" in asn1.result)
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this.iterations = asn1.result.iterations.valueBlock.valueDec;
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//endregion
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}
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//**********************************************************************************
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/**
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* Convert current object to asn1js object and set correct values
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* @returns {Object} asn1js object
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*/
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toSchema()
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{
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//region Construct and return new ASN.1 schema for this object
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const outputArray = [
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this.mac.toSchema(),
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this.macSalt
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];
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if("iterations" in this)
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outputArray.push(new asn1js.Integer({ value: this.iterations }));
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return (new asn1js.Sequence({
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value: outputArray
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}));
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//endregion
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}
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//**********************************************************************************
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/**
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* Convertion for the class to JSON object
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* @returns {Object}
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*/
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toJSON()
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{
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const output = {
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mac: this.mac.toJSON(),
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macSalt: this.macSalt.toJSON()
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};
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if("iterations" in this)
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output.iterations = this.iterations.toJSON();
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return output;
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}
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//**********************************************************************************
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}
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//**************************************************************************************
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