Lightweight utility to generate a two-factor TOTP secret with QR code to be used by authenticators such as Google or Microsoft Authenticator. 

jzhobes

2fa-util

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const {authenticator} = require('otplib');

const {generateSecret, verify} = require('./index');

    it('only accepts non-empty string label input values', async () => {

      for (const label of ['', ' ', 1, {}, new Map(), new Set(), new Date(), Infinity, NaN, undefined, null, new RegExp()]) {

        await expect(generateSecret(label)).rejects.toThrow('Invalid label.');

    it('only accepts non-empty string issuer input values if provided', async () => {

      for (const issuer of [1, {}, new Map(), new Set(), new Date(), Infinity, new RegExp()]) {

        await expect(generateSecret('foobar', issuer)).rejects.toThrow('Invalid issuer.');

    it('does not specify the issuer in the otpauth url if not provided', async () => {

      const asdf = await generateSecret('John Doe', 'Company');

      const {otpauth} = await generateSecret('foobar');

      expect(otpauth).toMatch(/otpauth:\/\/totp\/foobar:foobar\?secret=(.+)&period=30&digits=6&algorithm=SHA1/);

    it('trims the provided label and issuer values in the otpauth', async () => {

      const {otpauth} = await generateSecret('  bar  ', '  foo  ');

      expect(otpauth).toMatch(/otpauth:\/\/totp\/foo:bar\?secret=(.+)&period=30&digits=6&algorithm=SHA1&issuer=foo/);

    it('returns the QR code as an encoded base64 data uri string', async () => {

      const {qrcode} = await generateSecret('bar', 'foo');

      expect(qrcode).toMatch(/data:image\/png;base64,.+/);

    it('verifies to true on a valid token', async () => {

      const {secret} = await generateSecret('bar', 'foo');

      expect(verify(authenticator.generate(secret), secret)).toBe(true);

  "description": "Lightweight utility to generate a two-factor TOTP secret with QR code to be used by authenticators such as Google or Microsoft Authenticator.",

  "repository": "https://github.com/jzhobes/2fa-config",

    "lint": "eslint *.js --format table",

		{
		"name": "2fa-util",
		"version": "1.0.1",
		"version": "1.0.2",
		"description": "Lightweight utility to generate a two-factor TOTP secret with QR code to be used by authenticators such as Google or Microsoft Authenticator.",
		@@ -5,0 +5,0 @@ "main": "index.js",

		@@ -19,3 +19,2 @@ const {authenticator} = require('otplib');
		it('does not specify the issuer in the otpauth url if not provided', async () => {
		const asdf = await generateSecret('John Doe', 'Company');
		const {otpauth} = await generateSecret('foobar');
		@@ -22,0 +21,0 @@ expect(otpauth).toMatch(/otpauth:\/\/totp\/foobar:foobar\?secret=(.+)&period=30&digits=6&algorithm=SHA1/);

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