@shopify/app-bridge-core/actions/uuid.js

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"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.generateUuid = generateUuid;
/**
 * Convert a number or array of integers to a string of padded hex octets.
 */
function asHex(value) {
    return Array.from(value)
        .map(function (i) { return "00".concat(i.toString(16)).slice(-2); })
        .join('');
}
/**
 * Attempt to securely generate random bytes/
 */
function getRandomBytes(size) {
    // SPRNG
    if (typeof Uint8Array === 'function' && typeof window === 'object' && window.crypto) {
        var buffer = new Uint8Array(size);
        var randomValues = window.crypto.getRandomValues(buffer);
        if (randomValues) {
            return randomValues;
        }
    }
    // Insecure random
    return Array.from(new Array(size), function () { return (Math.random() * 255) | 0; });
}
/**
 * Generate a RFC4122-compliant v4 UUID.
 *
 * @see http://www.ietf.org/rfc/rfc4122.txt
 */
function generateUuid() {
    var version = 64;
    var clockSeqHiAndReserved = getRandomBytes(1);
    var timeHiAndVersion = getRandomBytes(2);
    clockSeqHiAndReserved[0] &= 63 | 128;
    // tslint:disable-next-line:binary-expression-operand-order
    timeHiAndVersion[0] &= 15 | version;
    return [
        // time-low
        asHex(getRandomBytes(4)),
        '-',
        // time-mid
        asHex(getRandomBytes(2)),
        '-',
        // time-high-and-version
        asHex(timeHiAndVersion),
        '-',
        // clock-seq-and-reserved
        asHex(clockSeqHiAndReserved),
        // clock-seq-loq
        asHex(getRandomBytes(1)),
        '-',
        // node
        asHex(getRandomBytes(6)),
    ].join('');
}
exports.default = generateUuid;