feautre(FacebookSocialLogin):

Enable Social Login using facebook

[Delivers #167574878]

package.json

@@ -32,7 +32,10 @@
     "debug": "^4.1.1",
     "dotenv": "^8.0.0",
     "express": "^4.17.1",
+    "express-session": "^1.16.2",
     "morgan": "^1.9.1",
+    "passport": "^0.4.0",
+    "passport-facebook": "^3.0.0",
     "pg": "^7.11.0",
     "pg-hstore": "^2.3.3",
     "sequelize": "^5.10.2",
@@ -61,6 +64,7 @@
     "lint-staged": "^9.2.1",
     "mocha": "^6.1.4",
     "mocha-lcov-reporter": "^1.3.0",
+    "nock": "^10.0.6",
     "nodemon": "^1.19.1",
     "nyc": "^14.1.1",
     "prettier-eslint-cli": "^5.0.0",

server/controllers/Auth.js

@@ -0,0 +1,34 @@
+import models from '../database/models';
+
+const { User } = models;
+
+/**
+ * @export
+ * @class Users
+ */
+class Auth {
+  /**
+   * @name FacebookSocialLogin
+   * @async
+   * @static
+   * @memberof Auth
+   * @param {Object} request express request object
+   * @param {Object} response express response object
+   * @returns {JSON} JSON object with details of new user
+   */
+  static async FacebookSocialLogin(request, response) {
+    const mail = request.user.emails[0].value;
+    const { givenName, familyName } = request.user.name;
+    const users = await User.findOrCreate({
+      where: { email: mail },
+      defaults: {
+        firstName: givenName,
+        lastName: familyName,
+        email: mail,
+        userName: givenName
+      }
+    });
+    response.status(200).json({ success: 'true', data: users[0].dataValues });
+  }
+}
+export default Auth;

server/helpers/facebook.js

@@ -0,0 +1,17 @@
+import passport from 'passport';
+import { Strategy as FacebookStrategy } from 'passport-facebook';
+import callback from './passportCallback';
+
+export default () => {
+  passport.use(
+    new FacebookStrategy(
+      {
+        clientID: process.env.FACEBOOK_APP_ID,
+        clientSecret: process.env.FACEBOOK_APP_SECRET,
+        callbackURL: process.env.REDIRECT_URL,
+        profileFields: ['id', 'first_name', 'last_name', 'photos', 'email']
+      },
+      callback
+    )
+  );
+};

server/helpers/passport.js

@@ -0,0 +1,16 @@
+import passport from 'passport';
+import facebookPassport from './facebook';
+
+export default (app) => {
+  app.use(passport.initialize());
+  app.use(passport.session());
+  passport.serializeUser((user, cb) => {
+    cb(null, user);
+  });
+
+  passport.deserializeUser((obj, cb) => {
+    cb(null, obj);
+  });
+
+  facebookPassport();
+};

server/helpers/passportCallback.js

@@ -0,0 +1,13 @@
+/**
+ * @name passportError
+ * @static
+ * @memberof Users
+ * @param {string} accessToken express err object
+ * @param {string} refreshToken express request object
+ * @param {Object} profile express response object
+ * @param {function} done express next function
+ * @returns {JSON} JSON object with details of new user
+ */
+const callback = (accessToken, refreshToken, profile, done) => done(null, profile);
+
+export default callback;

server/helpers/passportError.js

@@ -0,0 +1,23 @@
+/**
+ * @export
+ * @class Users
+ */
+class ErrorCatcher {
+  /**
+   * @name passportError
+   * @static
+   * @memberof Users
+   * @param {Object} error express err object
+   * @param {Object} req express request object
+   * @param {Object} res express response object
+   * @param {function} next express next function
+   * @returns {JSON} JSON object with details of new user
+   */
+  static passportErrors(error, req, res, next) {
+    if (!error) {
+      next();
+    }
+    res.status(400).json({ success: 'false', message: 'Auth failed' });
+  }
+}
+export default ErrorCatcher;

server/index.js

@@ -5,12 +5,12 @@ import swaggerUi from 'swagger-ui-express';
 import YAML from 'yamljs';
 import path from 'path';
 import Debug from 'debug';
+import session from 'express-session';
 import routes from './routes';
 
-const PORT = process.env.PORT || 9000;
-
 config();
 
+const PORT = process.env.PORT || 9000;
 const debug = Debug('dev');
 
 const app = express();
@@ -22,6 +22,13 @@ app.use(logger('dev'));
 app.use(json());
 app.use(urlencoded({ extended: false }));
 app.use('/api-docs', swaggerUi.serve, swaggerUi.setup(swaggerDoc));
+app.use(
+  session({
+    secret: 'keyboard cat',
+    resave: true,
+    saveUninitialized: true
+  })
+);
 
 app.get('/', (request, response) => {
   response.status(200).send('Welcome to Authors Haven ');

server/routes/auth.js

@@ -0,0 +1,17 @@
+import express from 'express';
+import passport from 'passport';
+import Passport from '../helpers/passport';
+import PassportError from '../helpers/passportError';
+import Auth from '../controllers/Auth';
+
+const auth = express.Router();
+
+Passport(auth);
+auth.get('/facebook', passport.authenticate('facebook', { scope: ['email'] }));
+auth.get(
+  '/facebook/callback',
+  passport.authenticate('facebook', { failureRedirect: '/login' }),
+  PassportError.passportErrors,
+  Auth.FacebookSocialLogin
+);
+export default auth;