feat(auth): Support two factor authentication for NPM accounts

CHANGELOG.md

@@ -32,6 +32,10 @@ Please add one entry in this file for each change in Yarn's behavior. Use the sa
 
   [#5322](https://github.com/yarnpkg/yarn/pull/5322) - [**Karolis Narkevicius**](https://twitter.com/KidkArolis)
 
+- Adds 2FA (Two Factor Authentication) support to publish & alike
+
+  [#6555](https://github.com/yarnpkg/yarn/pull/6555) - [**Krzysztof Zbudniewek**](https://github.com/neonowy)
+
 - Fixes how the `files` property is interpreted to bring it in line with npm
 
   [#6562](https://github.com/yarnpkg/yarn/pull/6562) - [**Bertrand Marron**](https://github.com/tusbar)

__tests__/registries/npm-registry.js

@@ -85,6 +85,10 @@ describe('request', () => {
     const npmRegistry = new NpmRegistry(testCwd, mockRegistries, mockRequestManager, mockReporter, true, []);
     npmRegistry.config = config;
     return {
+      setOtp(otp: string) {
+        npmRegistry.setOtp(otp);
+      },
+
       request(url: string, options: Object, packageName: string): Object {
         npmRegistry.request(url, options, packageName);
         const lastIndex = mockRequestManager.request.mock.calls.length - 1;
@@ -101,6 +105,17 @@ describe('request', () => {
     expect(requestParams.url).toBe(url);
   });
 
+  test('should add `npm-otp` header', () => {
+    const url = 'https://registry.npmjs.org/yarn';
+    const config = {};
+    const registry = createRegistry(config);
+
+    registry.setOtp('123 456');
+
+    const requestParams = registry.request(url);
+    expect(requestParams.headers['npm-otp']).toBe('123 456');
+  });
+
   const testCases = [
     {
       title: 'using npm as default registry and using private registry for scoped packages',

__tests__/util/request-manager.js

@@ -1,6 +1,7 @@
 /* @flow */
 /* eslint max-len: 0 */
 
+import {OneTimePasswordError} from '../../src/errors.js';
 import {Reporter} from '../../src/reporters/index.js';
 import Config from '../../src/config.js';
 import * as fs from '../../src/util/fs.js';
@@ -209,6 +210,48 @@ for (const statusCode of [403, 442]) {
   });
 }
 
+test('RequestManager.execute one time password error on npm request', async () => {
+  jest.resetModules();
+  jest.mock('request', factory => options => {
+    options.callback(
+      '',
+      {statusCode: 401, headers: {'www-authenticate': 'otp'}},
+      {error: 'You must provide a one-time pass. Upgrade your client to npm@latest in order to use 2FA.'},
+    );
+    return {
+      on: () => {},
+    };
+  });
+
+  try {
+    const config = await Config.create({});
+    await config.requestManager.request({
+      url: 'https://registry.npmjs.org/yarn',
+    });
+  } catch (err) {
+    expect(err).toBeInstanceOf(OneTimePasswordError);
+  }
+});
+
+test('RequestManager.execute one time password error on npm login request', async () => {
+  jest.resetModules();
+  jest.mock('request', factory => options => {
+    options.callback('', {statusCode: 401, headers: {'www-authenticate': 'otp'}}, {ok: false});
+    return {
+      on: () => {},
+    };
+  });
+
+  try {
+    const config = await Config.create({});
+    await config.requestManager.request({
+      url: 'https://registry.npmjs.org/-/user/org.couchdb.user:user',
+    });
+  } catch (err) {
+    expect(err).toBeInstanceOf(OneTimePasswordError);
+  }
+});
+
 // Cloudflare will occasionally return an html response with a 500 status code on some calls
 for (const statusCode of [408, 500, 542]) {
   test(`RequestManager.execute retries on ${statusCode} error`, async () => {

src/cli/commands/login.js

@@ -36,6 +36,10 @@ async function getCredentials(
   return {username, email};
 }
 
+export function getOneTimePassword(reporter: Reporter): Promise<string> {
+  return reporter.question(reporter.lang('npmOneTimePassword'));
+}
+
 export async function getToken(
   config: Config,
   reporter: Reporter,
@@ -45,6 +49,10 @@ export async function getToken(
 ): Promise<() => Promise<void>> {
   const auth = registry ? config.registries.npm.getAuthByRegistry(registry) : config.registries.npm.getAuth(name);
 
+  if (config.otp) {
+    config.registries.npm.setOtp(config.otp);
+  }
+
   if (auth) {
     config.registries.npm.setToken(auth);
     return function revoke(): Promise<void> {

src/cli/index.js

@@ -122,6 +122,7 @@ export async function main({
   );
   commander.option('--no-node-version-check', 'do not warn when using a potentially unsupported Node version');
   commander.option('--focus', 'Focus on a single workspace by installing remote copies of its sibling workspaces.');
+  commander.option('--otp <otpcode>', 'one-time password for two factor authentication');
 
   // if -v is the first command, then always exit after returning the version
   if (args[0] === '-v') {
@@ -527,6 +528,7 @@ export async function main({
       nonInteractive: commander.nonInteractive,
       updateChecksums: commander.updateChecksums,
       focus: commander.focus,
+      otp: commander.otp,
     })
     .then(() => {
       // lockfile check must happen after config.init sets lockfileFolder

src/config.js

@@ -68,6 +68,8 @@ export type ConfigOptions = {
   updateChecksums?: boolean,
 
   focus?: boolean,
+
+  otp?: string,
 };
 
 type PackageMetadata = {
@@ -207,6 +209,8 @@ export default class Config {
 
   autoAddIntegrity: boolean;
 
+  otp: ?string;
+
   /**
    * Execute a promise produced by factory if it doesn't exist in our cache with
    * the associated key.
@@ -495,6 +499,8 @@ export default class Config {
 
     this.focus = !!opts.focus;
     this.focusedWorkspaceName = '';
+
+    this.otp = opts.otp || '';
   }
 
   /**

src/errors.js

@@ -33,3 +33,5 @@ export class ResponseError extends Error {
 
   responseCode: number;
 }
+
+export class OneTimePasswordError extends Error {}

src/registries/base-registry.js

@@ -65,6 +65,9 @@ export default class BaseRegistry {
   //
   token: string;
 
+  //
+  otp: string;
+
   //
   cwd: string;
 
@@ -81,6 +84,10 @@ export default class BaseRegistry {
     this.token = token;
   }
 
+  setOtp(otp: string) {
+    this.otp = otp;
+  }
+
   getOption(key: string): mixed {
     return this.config[key];
   }

src/registries/npm-registry.js

@@ -15,6 +15,8 @@ import {addSuffix} from '../util/misc';
 import {getPosixPath, resolveWithHome} from '../util/path';
 import normalizeUrl from 'normalize-url';
 import {default as userHome, home} from '../util/user-home-dir';
+import {MessageError, OneTimePasswordError} from '../errors.js';
+import {getOneTimePassword} from '../cli/commands/login.js';
 import path from 'path';
 import url from 'url';
 import ini from 'ini';
@@ -133,7 +135,7 @@ export default class NpmRegistry extends Registry {
     return (requestToRegistryHost || requestToYarn) && (requestToRegistryPath || customHostSuffixInUse);
   }
 
-  request(pathname: string, opts?: RegistryRequestOptions = {}, packageName: ?string): Promise<*> {
+  async request(pathname: string, opts?: RegistryRequestOptions = {}, packageName: ?string): Promise<*> {
     // packageName needs to be escaped when if it is passed
     const packageIdent = (packageName && NpmRegistry.escapeName(packageName)) || pathname;
     const registry = opts.registry || this.getRegistry(packageIdent);
@@ -161,17 +163,38 @@ export default class NpmRegistry extends Registry {
       }
     }
 
-    return this.requestManager.request({
-      url: requestUrl,
-      method: opts.method,
-      body: opts.body,
-      auth: opts.auth,
-      headers,
-      json: !opts.buffer,
-      buffer: opts.buffer,
-      process: opts.process,
-      gzip: true,
-    });
+    if (this.otp) {
+      headers['npm-otp'] = this.otp;
+    }
+
+    try {
+      return await this.requestManager.request({
+        url: requestUrl,
+        method: opts.method,
+        body: opts.body,
+        auth: opts.auth,
+        headers,
+        json: !opts.buffer,
+        buffer: opts.buffer,
+        process: opts.process,
+        gzip: true,
+      });
+    } catch (error) {
+      if (error instanceof OneTimePasswordError) {
+        if (this.otp) {
+          throw new MessageError(this.reporter.lang('incorrectOneTimePassword'));
+        }
+
+        this.reporter.info(this.reporter.lang('twoFactorAuthenticationEnabled'));
+        this.otp = await getOneTimePassword(this.reporter);
+
+        this.requestManager.clearCache();
+
+        return this.request(pathname, opts, packageName);
+      } else {
+        throw error;
+      }
+    }
   }
 
   requestNeedsAuth(requestUrl: string): boolean {

src/reporters/lang/en.js

@@ -311,6 +311,7 @@ const messages = {
   npmUsername: 'npm username',
   npmPassword: 'npm password',
   npmEmail: 'npm email',
+  npmOneTimePassword: 'npm one-time password',
 
   loggingIn: 'Logging in',
   loggedIn: 'Logged in.',
@@ -322,6 +323,8 @@ const messages = {
 
   loginAsPublic: 'Logging in as public',
   incorrectCredentials: 'Incorrect username or password.',
+  incorrectOneTimePassword: 'Incorrect one-time password.',
+  twoFactorAuthenticationEnabled: 'Two factor authentication enabled.',
   clearedCredentials: 'Cleared login credentials.',
 
   publishFail: "Couldn't publish package: $0",

src/util/request-manager.js

@@ -8,7 +8,7 @@ import invariant from 'invariant';
 import RequestCaptureHar from 'request-capture-har';
 
 import type {Reporter} from '../reporters/index.js';
-import {MessageError, ResponseError} from '../errors.js';
+import {MessageError, ResponseError, OneTimePasswordError} from '../errors.js';
 import BlockingQueue from './blocking-queue.js';
 import * as constants from '../constants.js';
 import * as network from './network.js';
@@ -426,6 +426,15 @@ export default class RequestManager {
           }
         }
 
+        if (res.statusCode === 401 && res.headers['www-authenticate']) {
+          const authMethods = res.headers['www-authenticate'].split(/,\s*/).map(s => s.toLowerCase());
+
+          if (authMethods.indexOf('otp') !== -1) {
+            reject(new OneTimePasswordError());
+            return;
+          }
+        }
+
         if (body && typeof body.error === 'string') {
           reject(new Error(body.error));
           return;