cadesjs/build/ESSCertIDv2.js

CAdESjs gives you an ability to make CAdES signatures on pure JavaScript. The libray made with latest CAdES standards in mind

"use strict";

Object.defineProperty(exports, "__esModule", {
	value: true
});

var _asn1js = require("asn1js");

var asn1js = _interopRequireWildcard(_asn1js);

var _pvutils = require("pvutils");

var _pkijs = require("pkijs");

var _IssuerSerial = require("./IssuerSerial.js");

var _IssuerSerial2 = _interopRequireDefault(_IssuerSerial);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } else { var newObj = {}; if (obj != null) { for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key]; } } newObj.default = obj; return newObj; } }

//**************************************************************************************
class ESSCertIDv2 {
	//**********************************************************************************
	/**
  * Constructor for ESSCertIDv2 class
  * @param {Object} [parameters={}]
  * @property {Object} [schema] asn1js parsed value
  */
	constructor(parameters = {}) {
		//region Internal properties of the object
		if ("hashAlgorithm" in parameters)
			/**
    * @type {AlgorithmIdentifier}
    * @description hashAlgorithm
    */
			this.hashAlgorithm = (0, _pvutils.getParametersValue)(parameters, "hashAlgorithm", ESSCertIDv2.defaultValues("hashAlgorithm"));

		/**
   * @type {OctetString}
   * @description certHash
   */
		this.certHash = (0, _pvutils.getParametersValue)(parameters, "certHash", ESSCertIDv2.defaultValues("certHash"));
		/**
   * @type {IssuerSerial}
   * @description issuerSerial
   */
		this.issuerSerial = (0, _pvutils.getParametersValue)(parameters, "issuerSerial", ESSCertIDv2.defaultValues("issuerSerial"));
		//endregion

		//region If input argument array contains "schema" for this object
		if ("schema" in parameters) this.fromSchema(parameters.schema);
		//endregion
	}
	//**********************************************************************************
	/**
  * Return default values for all class members
  * @param {string} memberName String name for a class member
  */
	static defaultValues(memberName) {
		switch (memberName) {
			case "hashAlgorithm":
				return new _pkijs.AlgorithmIdentifier();
			case "certHash":
				return new asn1js.OctetString();
			case "issuerSerial":
				return new _IssuerSerial2.default();
			default:
				throw new Error(`Invalid member name for ESSCertIDv2 class: ${memberName}`);
		}
	}
	//**********************************************************************************
	/**
  * Compare values with default values for all class members
  * @param {string} memberName String name for a class member
  * @param {*} memberValue Value to compare with default value
  */
	static compareWithDefault(memberName, memberValue) {
		switch (memberName) {
			case "hashAlgorithm":
			case "certHash":
				return memberValue.isEqual(ESSCertIDv2.defaultValues(memberName));
			case "issuerSerial":
				return _IssuerSerial2.default.compareWithDefault("issuer", memberValue.issuer) && _IssuerSerial2.default.compareWithDefault("serialNumber", memberValue.serialNumber);
			default:
				throw new Error(`Invalid member name for ESSCertIDv2 class: ${memberName}`);
		}
	}
	//**********************************************************************************
	/**
  * Return value of asn1js schema for current class
  * @param {Object} parameters Input parameters for the schema
  * @returns {Object} asn1js schema object
  */
	static schema(parameters = {}) {
		// Hash ::= OCTET STRING
		//
		// ESSCertIDv2 ::=  SEQUENCE {
		//    hashAlgorithm           AlgorithmIdentifier
		//    DEFAULT {algorithm id-sha256},
		//    certHash                 Hash,
		//    issuerSerial             IssuerSerial OPTIONAL
		//}

		/**
   * @type {Object}
   * @property {string} [blockName]
   * @property {string} [hashAlgorithm]
   * @property {string} [certHash]
   * @property {string} [issuerSerial]
   */
		const names = (0, _pvutils.getParametersValue)(parameters, "names", {});

		return new asn1js.Sequence({
			name: names.blockName || "",
			value: [_pkijs.AlgorithmIdentifier.schema(names.hashAlgorithm || {
				names: {
					blockName: "ESSCertIDv2.hashAlgorithm",
					optional: true
				}
			}), new asn1js.OctetString({ name: names.certHash || "" }), _IssuerSerial2.default.schema(names.issuerSerial || {
				names: {
					blockName: "ESSCertIDv2.issuerSerial"
				}
			})]
		});
	}
	//**********************************************************************************
	/**
  * Convert parsed asn1js object into current class
  * @param {!Object} schema
  */
	fromSchema(schema) {
		//region Check the schema is valid
		const asn1 = asn1js.compareSchema(schema, schema, ESSCertIDv2.schema({
			names: {
				hashAlgorithm: {
					names: {
						blockName: "hashAlgorithm"
					}
				},
				certHash: "certHash",
				issuerSerial: {
					names: {
						blockName: "issuerSerial"
					}
				}
			}
		}));

		if (asn1.verified === false) throw new Error("Object's schema was not verified against input data for ESSCertIDv2");
		//endregion

		//region Get internal properties from parsed schema
		if ("hashAlgorithm" in asn1.result) this.hashAlgorithm = new _pkijs.AlgorithmIdentifier({ schema: asn1.result.hashAlgorithm });

		this.certHash = asn1.result.serialNumber;
		this.issuerSerial = new _IssuerSerial2.default({ schema: asn1.result.issuerSerial });
		//endregion
	}
	//**********************************************************************************
	/**
  * Convert current object to asn1js object and set correct values
  * @returns {Object} asn1js object
  */
	toSchema() {
		//region Create array for output sequence
		const outputArray = [];

		if ("hashAlgorithm" in this) outputArray.push(this.hashAlgorithm.toSchema());

		outputArray.push(this.certHash);
		outputArray.push(this.issuerSerial.toSchema());
		//endregion

		//region Construct and return new ASN.1 schema for this object
		return new asn1js.Sequence({
			value: outputArray
		});
		//endregion
	}
	//**********************************************************************************
	/**
  * Convertion for the class to JSON object
  * @returns {Object}
  */
	toJSON() {
		const _object = {};

		if ("hashAlgorithm" in this) _object.hashAlgorithm = this.hashAlgorithm.toJSON();

		_object.certHash = this.certHash.toJSON();
		_object.issuerSerial = this.issuerSerial.toJSON();

		return _object;
	}
	//**********************************************************************************
	/**
  * Creates "ESSCertIDv2" for given CMS Signed Data and signer index
  * @param {Object} parameters Additional parameters for making attribute
  * @returns {Promise}
  */
	fillValues(parameters) {
		//region Initial variables
		let _this = this;

		let sequence = Promise.resolve();

		let hashAlgorithm = "SHA-256";

		let certificate;
		//endregion

		//region Check input parameters
		if ("hashAlgorithm" in parameters) hashAlgorithm = parameters.hashAlgorithm;

		if ("certificate" in parameters) certificate = parameters.certificate;else return Promise.reject("Parameter \"certificate\" is mandatory for making \"ESSCertIDv2\"");
		//endregion

		//region Get a "crypto" extension
		const crypto = (0, _pkijs.getCrypto)();
		if (typeof crypto === "undefined") return Promise.reject("Unable to create WebCrypto object");
		//endregion

		//region Fill correct value for "hashIndAlgorithm"
		sequence = sequence.then(() => {
			if (hashAlgorithm.toUpperCase() !== "SHA-256") {
				const oid = (0, _pkijs.getOIDByAlgorithm)({ name: hashAlgorithm });
				if (oid === "") return Promise.reject(`Incorrect hashing algorithm: ${hashAlgorithm}`);

				_this.hashAlgorithm = new _pkijs.AlgorithmIdentifier({
					algorithmId: oid,
					algorithmParams: new asn1js.Null()
				});
			}

			return Promise.resolve();
		});
		//endregion

		//region Create all remaining attributes
		sequence = sequence.then(() => crypto.digest({ name: hashAlgorithm }, certificate.toSchema().toBER(false)), error => Promise.reject(error)).then(result => {
			_this.certHash = new asn1js.OctetString({ valueHex: result });
			_this.issuerSerial = new _IssuerSerial2.default({
				issuer: new _pkijs.GeneralNames({
					names: [new _pkijs.GeneralName({
						type: 4,
						value: certificate.issuer
					})]
				}),
				serialNumber: certificate.serialNumber
			});
		}, error => Promise.reject(error));
		//endregion

		return sequence;
	}
	//**********************************************************************************
}
exports.default = ESSCertIDv2; //**************************************************************************************
//# sourceMappingURL=ESSCertIDv2.js.map