otp-io/dist/hotp.class.js

🕖 Typed library to work 2fa via Google Authenticator/Time-based TOTP/Hmac-based HOTP

'use strict';const hotp=require('./hotp.js'),uri=require('./uri.js');/**
 *
 *
 * @export
 * @class HOTP
 */
class HOTP {
    /**
     * Creates an instance of HOTP.
     * @param {Hmac} _hmac
     * @param {HOTPOptions} options
     * @memberof HOTP
     */
    constructor(_hmac, options) {
        this._hmac = _hmac;
        this.options = options;
    }
    /**
     *
     *
     * @param {string} name
     * @param {string} issuer
     * @return {string}  {string}
     * @memberof HOTP
     */
    getUri(name, issuer) {
        return uri.getKeyUri(Object.assign({ type: "hotp", name, issuer }, this.options));
    }
    /**
     *
     *
     * @param {string} code
     * @param {Partial<HOTPOptions>} [overrides]
     * @return {Promise<boolean>}  {Promise<boolean>}
     * @memberof HOTP
     */
    async checkCode(code, overrides) {
        return code === (await this.generateCode(overrides));
    }
    /**
     *
     * @param {Partial<HOTPOptions>} [overrides={}]
     * @return {Promise<string>} {Promise<string>}
     * @memberof HOTP
     */
    async generateCode(overrides = {}) {
        return await hotp.hotp(this._hmac, Object.assign(Object.assign({}, this.options), overrides));
    }
    /**
     *
     *
     * @return {number} next value of the counter
     * @memberof HOTP
     */
    increment() {
        return ++this.options.counter;
    }
}exports.HOTP=HOTP;