@sergiomorenoalbert/fastify-totp/dist/es/totp.mjs

A plugin to handle TOTP (e.g. for 2FA)

import fp from 'fastify-plugin';
import speakeasy from '@levminer/speakeasy';
import qrcode from 'qrcode';

function asyncGeneratorStep(gen, resolve, reject, _next, _throw, key, arg) {
    try {
        var info = gen[key](arg);
        var value = info.value;
    } catch (error) {
        reject(error);
        return;
    }
    if (info.done) {
        resolve(value);
    } else {
        Promise.resolve(value).then(_next, _throw);
    }
}
function _async_to_generator(fn) {
    return function() {
        var self = this, args = arguments;
        return new Promise(function(resolve, reject) {
            var gen = fn.apply(self, args);
            function _next(value) {
                asyncGeneratorStep(gen, resolve, reject, _next, _throw, "next", value);
            }
            function _throw(err) {
                asyncGeneratorStep(gen, resolve, reject, _next, _throw, "throw", err);
            }
            _next(undefined);
        });
    };
}
function _extends() {
    _extends = Object.assign || function(target) {
        for(var i = 1; i < arguments.length; i++){
            var source = arguments[i];
            for(var key in source){
                if (Object.prototype.hasOwnProperty.call(source, key)) {
                    target[key] = source[key];
                }
            }
        }
        return target;
    };
    return _extends.apply(this, arguments);
}
const DEFAULT_TOTP_SECRET_LENGTH = 20;
const DEFAULT_TOTP_LABEL = 'Fastify';
const DEFAULT_TOTP_WINDOW = 1;
const DEFAULT_TOTP_ALG = 'sha512';
const DEFAULT_TOTP_STEP = 30;
const plugin = function(fastify, opts, next) {
    const TOTP_SECRET_LENGTH = opts.secretLength || DEFAULT_TOTP_SECRET_LENGTH;
    const TOTP_LABEL = opts.totpLabel || DEFAULT_TOTP_LABEL;
    const TOTP_WINDOW = opts.totpWindow || DEFAULT_TOTP_WINDOW;
    const TOTP_ALG = opts.totpAlg || DEFAULT_TOTP_ALG;
    const TOTP_STEP = opts.totpStep || DEFAULT_TOTP_STEP;
    function generateTOTPSecret(length) {
        const secret = speakeasy.generateSecret({
            length: length || TOTP_SECRET_LENGTH
        });
        return secret;
    }
    function generateTOTPToken(options) {
        if (!options) return null;
        if (!options.secret) return null;
        const token = speakeasy.totp(_extends({
            encoding: options.encoding || 'ascii',
            algorithm: options.algorithm || TOTP_ALG,
            step: options.step || TOTP_STEP
        }, options));
        return token;
    }
    function generateAuthURLFromSecret(options) {
        if (!options) return null;
        if (!options.secret) return null;
        const url = speakeasy.otpauthURL(_extends({}, options, {
            algorithm: options.algorithm || TOTP_ALG,
            label: options.label || TOTP_LABEL
        }));
        return url;
    }
    function generateQRCodeFromSecret(options) {
        return _generateQRCodeFromSecret.apply(this, arguments);
    }
    function _generateQRCodeFromSecret() {
        _generateQRCodeFromSecret = _async_to_generator(function*(options) {
            const url = generateAuthURLFromSecret(options);
            if (!url) return null;
            return qrcode.toDataURL(url);
        });
        return _generateQRCodeFromSecret.apply(this, arguments);
    }
    function verifyTOTP(options) {
        const result = speakeasy.totp.verifyDelta(_extends({
            encoding: options.encoding || 'ascii',
            window: options.window || TOTP_WINDOW,
            step: options.step || TOTP_STEP
        }, options));
        return !!result;
    }
    fastify.decorate('totp', {
        generateSecret: generateTOTPSecret,
        generateToken: generateTOTPToken,
        generateAuthURL: generateAuthURLFromSecret,
        generateQRCode: generateQRCodeFromSecret,
        verify: verifyTOTP,
        options: {
            secretLength: TOTP_SECRET_LENGTH,
            totpLabel: TOTP_LABEL,
            totpWindow: TOTP_WINDOW,
            totpAlg: TOTP_ALG,
            totpStep: TOTP_STEP
        }
    });
    fastify.decorateRequest('totpVerify', verifyTOTP);
    next();
};
var index = fp(plugin, {
    fastify: '>=5.x',
    name: 'fastify-totp'
});

export { index as default };