xml-fiesta/lib/conservancyRecord.js

Electronic signed document XML Protocol for Node & Browser

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
var common_1 = require("./common");
var certificate_1 = require("./certificate");
var errors_1 = require("./errors");
var jsrsasign = require('jsrsasign');
var ConservancyRecord = (function () {
    function ConservancyRecord(caCert, userCert, record, timestamp, signedHash) {
        this.caCert = caCert;
        this.userCert = userCert;
        this.record = record;
        this.timestamp = timestamp;
        this.signedHash = signedHash;
        try {
            this.caCertificate = new certificate_1.default(null, common_1.b64toHex(this.caCert));
        }
        catch (err) {
            this.caCertificate = null;
        }
        try {
            this.userCertificate = new certificate_1.default(null, common_1.b64toHex(this.userCert));
        }
        catch (err) {
            this.userCertificate = null;
        }
        this.recordHex = common_1.b64toHex(this.record);
        if (!jsrsasign.ASN1HEX.isASN1HEX(this.recordHex)) {
            throw new errors_1.InvalidRecordError('The record provided is invalid');
        }
        this.positions = jsrsasign.ASN1HEX.getPosArrayOfChildren_AtObj(this.recordHex, 0);
    }
    ConservancyRecord.prototype.caName = function () {
        if (this.caCertificate) {
            return this.caCertificate.getSubject().O;
        }
    };
    ConservancyRecord.prototype.userName = function () {
        if (this.userCertificate) {
            return this.userCertificate.getSubject().O;
        }
    };
    ConservancyRecord.prototype.timestampHex = function () {
        return jsrsasign.ASN1HEX.getHexOfTLV_AtObj(this.recordHex, this.positions[2]);
    };
    ConservancyRecord.prototype.archiveHex = function () {
        return jsrsasign.ASN1HEX.getHexOfTLV_AtObj(this.recordHex, this.positions[1]);
    };
    ConservancyRecord.prototype.archiveSignature = function () {
        var ar_pos = jsrsasign.ASN1HEX.getPosArrayOfChildren_AtObj(this.archiveHex(), 0);
        ar_pos = jsrsasign.ASN1HEX.getPosArrayOfChildren_AtObj(this.archiveHex(), ar_pos[3]);
        return jsrsasign.ASN1HEX.getHexOfV_AtObj(this.archiveHex(), ar_pos[1]);
    };
    ConservancyRecord.prototype.archiveSignedHash = function () {
        var ar_pos = jsrsasign.ASN1HEX.getPosArrayOfChildren_AtObj(this.archiveHex(), 0);
        ar_pos = jsrsasign.ASN1HEX.getPosArrayOfChildren_AtObj(this.archiveHex(), ar_pos[1]);
        ar_pos = jsrsasign.ASN1HEX.getPosArrayOfChildren_AtObj(this.archiveHex(), ar_pos[0]);
        ar_pos = jsrsasign.ASN1HEX.getPosArrayOfChildren_AtObj(this.archiveHex(), ar_pos[1]);
        var signedHashH = jsrsasign.ASN1HEX.getHexOfV_AtObj(this.archiveHex(), ar_pos[1]);
        return common_1.hextoAscii(signedHashH.replace(/^[0]+/g, ''));
    };
    ConservancyRecord.prototype.validArchiveHash = function () {
        if (this.signedHash !== this.archiveSignedHash()) {
            return false;
        }
        return this.userCertificate.verifyString(this.signedHash, this.archiveSignature());
    };
    ConservancyRecord.prototype.recordTimestamp = function () {
        var ts_pos = jsrsasign.ASN1HEX.getPosArrayOfChildren_AtObj(this.timestampHex(), 0);
        ts_pos = jsrsasign.ASN1HEX.getPosArrayOfChildren_AtObj(this.timestampHex(), ts_pos[0]);
        ts_pos = jsrsasign.ASN1HEX.getPosArrayOfChildren_AtObj(this.timestampHex(), ts_pos[1]);
        ts_pos = jsrsasign.ASN1HEX.getPosArrayOfChildren_AtObj(this.timestampHex(), ts_pos[1]);
        ts_pos = jsrsasign.ASN1HEX.getPosArrayOfChildren_AtObj(this.timestampHex(), ts_pos[0]);
        ts_pos = jsrsasign.ASN1HEX.getPosArrayOfChildren_AtObj(this.timestampHex(), ts_pos[2]);
        ts_pos = jsrsasign.ASN1HEX.getPosArrayOfChildren_AtObj(this.timestampHex(), ts_pos[1]);
        ts_pos = jsrsasign.ASN1HEX.getPosArrayOfChildren_AtObj(this.timestampHex(), ts_pos[0]);
        ts_pos = jsrsasign.ASN1HEX.getPosArrayOfChildren_AtObj(this.timestampHex(), ts_pos[0]);
        var date = jsrsasign.ASN1HEX.getHexOfV_AtObj(this.timestampHex(), ts_pos[4]);
        return common_1.parseDate(common_1.hextoAscii(date));
    };
    ConservancyRecord.prototype.equalTimestamps = function () {
        return Date.parse(this.timestamp) === this.recordTimestamp().getTime();
    };
    ConservancyRecord.prototype.signedData = function () {
        var nameHex = jsrsasign.ASN1HEX.getHexOfTLV_AtObj(this.recordHex, this.positions[0]);
        return nameHex + this.archiveHex() + this.timestampHex();
    };
    ConservancyRecord.prototype.signature = function () {
        var signature_pos = jsrsasign.ASN1HEX.getPosArrayOfChildren_AtObj(this.recordHex, this.positions[3]);
        return jsrsasign.ASN1HEX.getHexOfV_AtObj(this.recordHex, signature_pos[1]);
    };
    ConservancyRecord.prototype.valid = function () {
        if (!this.caCertificate) {
            return false;
        }
        return this.caCertificate.verifyHexString(this.signedData(), this.signature());
    };
    ConservancyRecord.prototype.isCa = function (caPemCert) {
        if (this.caCertificate) {
            return this.caCertificate.isCa(caPemCert);
        }
    };
    return ConservancyRecord;
}());
exports.default = ConservancyRecord;
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