fix(auth0): Unify authentication via auth0 as provider

common/models/User-Identity.js

@@ -1,28 +1,19 @@
 import { Observable } from 'rx';
 // import debug from 'debug';
 import dedent from 'dedent';
+import { isEmail } from 'validator';
 
-import {
-  getSocialProvider,
-  getUsernameFromProvider
-} from '../../server/utils/auth';
 import { observeMethod, observeQuery } from '../../server/utils/rx';
 import { wrapHandledError } from '../../server/utils/create-handled-error.js';
 
 // const log = debug('fcc:models:userIdent');
 
 export default function(UserIdent) {
+
   UserIdent.on('dataSourceAttached', () => {
     UserIdent.findOne$ = observeMethod(UserIdent, 'findOne');
   });
-  // original source
-  // github.com/strongloop/loopback-component-passport
-  // find identity if it exist
-  // if not redirect to email signup
-  // if yes and github
-  //   update profile
-  //   update username
-  //   update picture
+
   UserIdent.login = function(
     _provider,
     authScheme,
@@ -33,24 +24,44 @@ export default function(UserIdent) {
   ) {
     const User = UserIdent.app.models.User;
     const AccessToken = UserIdent.app.models.AccessToken;
-    const provider = getSocialProvider(_provider);
     options = options || {};
     if (typeof options === 'function' && !cb) {
       cb = options;
       options = {};
     }
+
+    // get the social provider data and the external id from auth0
     profile.id = profile.id || profile.openid;
+    const auth0IdString = '' + profile.id;
+    const socialExtId = auth0IdString.substring(auth0IdString.indexOf('|') + 1);
+    const provider = auth0IdString.substring(0, auth0IdString.indexOf('|'));
     const query = {
       where: {
         provider: provider,
-        externalId: profile.id
+        externalId: socialExtId
       },
       include: 'user'
     };
+    // get the email from the auth0 (its expected from social providers)
+    const email = (profile && profile.emails && profile.emails[0]) ?
+                    profile.emails[0].value : '';
+    if (!isEmail('' + email)) {
+      throw wrapHandledError(
+        new Error('invalid or empty email recieved from auth0'),
+        {
+          message: dedent`
+    Oops... something is not right. We did not find a valid email from your
+    ${provider} account. Please try again with a different provider that has an
+    email available with it.
+          `,
+          type: 'info',
+          redirectTo: '/'
+        }
+      );
+    }
 
-    if (provider === 'auth0') {
+    if (provider === 'email') {
 
-      const email = profile.emails[0].value;
       return User.findOne$({ where: { email } })
         .flatMap(user => {
           return user ?
@@ -101,61 +112,17 @@ export default function(UserIdent) {
 
       return UserIdent.findOne$(query)
         .flatMap(identity => {
-          if (!identity) {
-            throw wrapHandledError(
-              new Error('user identity account not found'),
-              {
-                message: dedent`
-    We cannot create new user accounts with the deprecated social sign in
-    methods. If you already have an account with us, please sign in with your
-    email address instead.
-                `,
-                type: 'info',
-                redirectTo: '/'
-              }
-            );
-          }
-          const modified = new Date();
-          const user = identity.user();
-          if (!user) {
-            const username = getUsernameFromProvider(provider, profile);
-            return observeQuery(
-              identity,
-              'updateAttributes',
-              {
-                isOrphaned: username || true
-              }
-            )
-              .do(() => {
-                throw wrapHandledError(
-                  new Error('user identity is not associated with a user'),
-                  {
-                    type: 'info',
-                    redirectTo: '/',
-                    message: dedent`
-    The user account associated with the ${provider} user ${username || 'Anon'}
-    no longer exists.
-                    `
-                  }
-                );
+          return identity ?
+            Observable.of(identity.user()) :
+            User.findOne$({ where: { email } })
+              .flatMap(user => {
+                return user ?
+                  Observable.of(user) :
+                  User.create$({ email }).toPromise();
               });
-          }
+        })
+        .flatMap(user => {
 
-          // identity already exists
-          // find user and log them in
-          identity.credentials = credentials;
-          const attributes = {
-            // we no longer want to keep the profile
-            // this is information we do not need or use
-            profile: null,
-            credentials: credentials,
-            modified
-          };
-          const updateIdentity = observeQuery(
-            identity,
-            'updateAttributes',
-            attributes
-          );
           const createToken = observeQuery(
             AccessToken,
             'create',
@@ -165,17 +132,24 @@ export default function(UserIdent) {
               ttl: user.constructor.settings.ttl
             }
           );
+          const updateUser = user.update$({
+            email: email,
+            emailVerified: true,
+            emailAuthLinkTTL: null,
+            emailVerifyTTL: null
+          });
           return Observable.combineLatest(
             Observable.of(user),
-            updateIdentity,
             createToken,
-            (user, identity, token) => ({ user, identity, token })
+            updateUser,
+            (user, token) => ({ user, token })
           );
         })
         .subscribe(
-          ({ user, identity, token }) => cb(null, user, identity, token),
+          ({ user, token }) => cb(null, user, null, token),
           cb
         );
+
     }
   };
 }

sample.env

@@ -3,23 +3,6 @@ MONGOHQ_URL='mongodb://localhost:27017/freecodecamp'
 
 ROLLBAR_APP_ID='my-rollbar-app-id'
 
-FACEBOOK_ID=stuff
-FACEBOOK_SECRET=stuff
-
-GITHUB_ID=stuff
-GITHUB_SECRET=stuff
-
-GOOGLE_ID=stuff
-GOOGLE_SECRET=stuff
-
-LINKEDIN_ID=stuff
-LINKEDIN_SECRET=stuff
-
-TWITTER_KEY=stuff
-TWITTER_SECRET=stuff
-TWITTER_TOKEN=stuff
-TWITTER_TOKEN_SECRET=stuff
-
 AUTH0_CLIENT_ID=stuff
 AUTH0_CLIENT_SECRET=stuff
 AUTH0_DOMAIN=stuff

server/passport-providers.js

@@ -13,63 +13,6 @@ export default {
     session: true,
     failureFlash: true
   },
-  'facebook-login': {
-    provider: 'facebook',
-    module: 'passport-facebook',
-    clientID: process.env.FACEBOOK_ID,
-    clientSecret: process.env.FACEBOOK_SECRET,
-    authPath: '/auth/facebook',
-    callbackURL: '/auth/facebook/callback',
-    callbackPath: '/auth/facebook/callback',
-    useCustomCallback: true,
-    successRedirect: successRedirect,
-    failureRedirect: failureRedirect,
-    scope: ['email'],
-    failureFlash: true
-  },
-  'google-login': {
-    provider: 'google',
-    authScheme: 'oauth2',
-    module: 'passport-google-oauth2',
-    clientID: process.env.GOOGLE_ID,
-    clientSecret: process.env.GOOGLE_SECRET,
-    authPath: '/auth/google',
-    callbackURL: '/auth/google/callback',
-    callbackPath: '/auth/google/callback',
-    useCustomCallback: true,
-    successRedirect: successRedirect,
-    failureRedirect: failureRedirect,
-    scope: ['email', 'profile'],
-    failureFlash: true
-  },
-  'twitter-login': {
-    provider: 'twitter',
-    authScheme: 'oauth',
-    module: 'passport-twitter',
-    authPath: '/auth/twitter',
-    callbackURL: '/auth/twitter/callback',
-    callbackPath: '/auth/twitter/callback',
-    useCustomCallback: true,
-    successRedirect: successRedirect,
-    failureRedirect: failureRedirect,
-    consumerKey: process.env.TWITTER_KEY,
-    consumerSecret: process.env.TWITTER_SECRET,
-    failureFlash: true
-  },
-  'github-login': {
-    provider: 'github',
-    authScheme: 'oauth2',
-    module: 'passport-github',
-    authPath: '/auth/github',
-    callbackURL: '/auth/github/callback',
-    callbackPath: '/auth/github/callback',
-    useCustomCallback: true,
-    successRedirect: successRedirect,
-    failureRedirect: failureRedirect,
-    clientID: process.env.GITHUB_ID,
-    clientSecret: process.env.GITHUB_SECRET,
-    failureFlash: true
-  },
   'auth0-login': {
     provider: 'auth0',
     module: 'passport-auth0',
@@ -83,7 +26,7 @@ export default {
     useCustomCallback: true,
     successRedirect: successRedirect,
     failureRedirect: failureRedirect,
-    scope: ['openid email'],
+    scope: ['openid profile email'],
     failureFlash: true
   }
 };