Added the linkedin integration to the project

Still need to identify the user when returned from linkedin

Author: LiavTB

.gitignore

@@ -1,133 +1,12 @@
-# Logs
-logs
-*.log
+/tmp
+/out-tsc
+
+/node_modules
 npm-debug.log*
 yarn-debug.log*
 yarn-error.log*
-lerna-debug.log*
-.pnpm-debug.log*
-
-# Diagnostic reports (https://nodejs.org/api/report.html)
-report.[0-9]*.[0-9]*.[0-9]*.[0-9]*.json
-
-# Runtime data
-pids
-*.pid
-*.seed
-*.pid.lock
-
-# Directory for instrumented libs generated by jscoverage/JSCover
-lib-cov
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-# Coverage directory used by tools like istanbul
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-
-# nyc test coverage
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-
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-
-# Bower dependency directory (https://bower.io/)
-bower_components
-
-# node-waf configuration
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-
-# Compiled binary addons (https://nodejs.org/api/addons.html)
-build/Release
-
-# Dependency directories
-node_modules/
-jspm_packages/
-package-lock.json
-
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-.rts2_cache_cjs/
-.rts2_cache_es/
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-
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-
-# Output of 'npm pack'
-*.tgz
-
-# Yarn Integrity file
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-
-# dotenv environment variable files
-.env
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-
-# parcel-bundler cache (https://parceljs.org/)
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-
-# Next.js build output
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-# Nuxt.js build / generate output
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-# Comment in the public line in if your project uses Gatsby and not Next.js
-# https://nextjs.org/blog/next-9-1#public-directory-support
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-# Stores VSCode versions used for testing VSCode extensions
-.vscode-test
+/.pnp
+.pnp.js
 
-# yarn v2
-.yarn/cache
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-.yarn/build-state.yml
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+.vscode/*
+.idea/*

nextstep-backend/package.json

@@ -24,11 +24,13 @@
     "axios": "^1.8.3",
     "bcrypt": "^5.1.1",
     "body-parser": "^1.20.3",
+    "cookie-parser": "^1.4.7",
     "cors": "^2.8.5",
     "cross-env": "^7.0.3",
     "dotenv": "^16.4.5",
     "dotenv-expand": "^12.0.1",
     "express": "^4.21.1",
+    "express-session": "^1.18.1",
     "express-unless": "2.1.3",
     "express-validator": "^7.2.0",
     "firebase-admin": "^13.2.0",
@@ -40,6 +42,9 @@
     "mongoose": "^8.8.2",
     "multer": "^1.4.5-lts.1",
     "office-text-extractor": "^3.0.3",
+    "passport": "^0.6.0",
+    "passport-linkedin-oauth2": "github:auth0/passport-linkedin-oauth2#v3.0.0",
+    "passport-openidconnect": "^0.1.2",
     "pdf-lib": "^1.17.1",
     "socket.io": "^4.8.1",
     "supertest": "^7.0.0",
@@ -51,13 +56,18 @@
     "@babel/preset-typescript": "^7.26.0",
     "@eslint/js": "^9.17.0",
     "@types/bcrypt": "^5.0.2",
+    "@types/cookie-parser": "^1.4.8",
     "@types/cors": "^2.8.17",
     "@types/express": "^4.17.1",
+    "@types/express-session": "^1.18.1",
     "@types/express-unless": "2.0.3",
     "@types/jest": "^29.5.14",
     "@types/js-yaml": "^4.0.9",
     "@types/jsonwebtoken": "^9.0.7",
     "@types/multer": "^1.4.12",
+    "@types/passport": "^1.0.9",
+    "@types/passport-linkedin-oauth2": "^1.5.6",
+    "@types/passport-openidconnect": "^0.1.3",
     "@types/supertest": "^6.0.2",
     "@types/swagger-jsdoc": "^6.0.4",
     "@types/swagger-ui-express": "^4.1.7",

nextstep-backend/src/app.ts

@@ -16,6 +16,11 @@ import loadOpenApiFile from "./openapi/openapi_loader";
 import resource_routes from './routes/resources_routes';
 import resume_routes from './routes/resume_routes';
 import githubRoutes from './routes/github_routes';
+import linkedinRoutes from './routes/linkedin_routes';
+import session from 'express-session';
+import passport from 'passport';
+import cookieParser from 'cookie-parser';
+import('./config/passport');
 
 const specs = swaggerJsdoc(options);
 
@@ -40,6 +45,22 @@ const removeUndefinedOrEmptyFields = (req: Request, res: Response, next: NextFun
     next();
 };
 
+
+app.use(cookieParser());
+app.use(session({
+    secret: 'your-secret',
+    resave: false,
+    saveUninitialized: false,
+}));
+
+// Initialize Passport
+app.use(passport.initialize());
+app.use(passport.session());
+
+// Load Passport config
+import('./config/passport');
+
+
 app.use(bodyParser.json());
 app.use(removeUndefinedOrEmptyFields);
 app.use(bodyParser.urlencoded({ extended: true }));
@@ -60,12 +81,18 @@ app.use(authenticateToken.unless({
         { url: '/comment', methods: ['GET'] },
         { url: '/post', methods: ['GET'] },  // Allow GET to /post
         { url: /^\/resource\/image\/[^\/]+$/, methods: ['GET'] },  // Allow GET to /resource/image/{anything}
+        {url: '/linkedin/auth'},
+        {url: '/linkedin/callback'},
     ]
 }));
 
 // Add AUTH middleware for params queries
 // To block queries without Authentication
-app.use(authenticateTokenForParams);
+app.use(authenticateTokenForParams.unless({
+    path: [
+        {url: '/linkedin/callback'}
+    ]
+}));
 
 app.use('/auth', authRoutes);
 app.use('/comment', commentsRoutes);
@@ -76,5 +103,6 @@ app.use('/resource', resource_routes);
 app.use('/room', roomsRoutes);
 app.use('/resume', resume_routes);
 app.use('/github', githubRoutes);
+app.use('/linkedin', linkedinRoutes);
 
 export { app, corsOptions };

nextstep-backend/src/config/passport.ts

@@ -0,0 +1,37 @@
+import passport from 'passport';
+import { Strategy as LinkedInStrategy } from 'passport-linkedin-oauth2';
+import dotenv from 'dotenv';
+import dotenvExpand from "dotenv-expand";
+
+dotenv.config();
+dotenvExpand.expand(dotenv.config());
+
+passport.serializeUser((user: any, done) => {
+    done(null, user);
+});
+
+passport.deserializeUser((user: any, done) => {
+    done(null, user);
+});
+
+passport.use('linkedin', new LinkedInStrategy({
+        clientID: process.env.LINKEDIN_CLIENT_ID!,
+        clientSecret: process.env.LINKEDIN_CLIENT_SECRET!,
+        callbackURL: process.env.LINKEDIN_CALLBACK_URL || 'http://localhost:3000/linkedin/callback',
+        scope: ['profile', 'openid', 'email'], // Request additional scopes here if needed.
+        // state: true,
+    },
+    (accessToken: string, refreshToken: string, profile: any, done: Function) => {
+
+        if (!profile) {
+            console.error('Failed to fetch user profile');
+            return done(new Error('No profile returned by LinkedIn'));
+        }
+
+        // Here you could perform further processing (e.g., saving the profile to a database)
+        console.log('LinkedIn profile:', profile);
+        console.log('Access Token:', accessToken);
+        console.log('Refresh Token:', refreshToken);
+        return done(null, profile);
+    }
+));

nextstep-backend/src/controllers/linkedin_controller.ts

@@ -0,0 +1,57 @@
+import passport from 'passport';
+import {NextFunction, Request, Response} from 'express';
+import {CustomRequest} from "types/customRequest";
+
+export const loginFailure = (req: Request, res: Response): void => {
+    res.status(401).json({ message: 'Authentication Failed' });
+};
+
+export const startLinkedIn = (req: CustomRequest, res: Response): void => {
+    res.cookie('linkedin_temp_user', req.user.id, {
+        httpOnly: true,
+        sameSite: 'lax',
+        secure: false, // TODO - change when https
+        maxAge: 5 * 60 * 1000
+    });
+
+    res.send({ message: 'Ready for LinkedIn auth' });
+};
+
+export const auth = (req: Request, res: Response, next: NextFunction): void => {
+    const userId = req.cookies.linkedin_temp_user;
+    if (!userId) {
+        res.status(401).send('No temp session');
+    }
+    else {
+        const sese = req.session //.tempUserId = userId;
+        passport.authenticate('linkedin')(req, res, next);
+    }
+}
+
+
+export const getProfile = (req: Request, res: Response): void => {
+    if (!req.user) {
+        res.status(401).json({ message: 'Not authenticated' });
+        return;
+    }
+
+    const profile = req.user;
+    const recommendations: Record<string, string> = {};
+
+    // if (!profile.displayName) {
+    //     recommendations.name = 'Add your full name to your LinkedIn profile.';
+    // }
+    //
+    // if (!profile.emails || profile.emails.length === 0) {
+    //     recommendations.email = 'Consider adding an email to your LinkedIn profile.';
+    // }
+    //
+    // if (!profile.photos || profile.photos.length === 0) {
+    //     recommendations.profilePhoto = 'Upload a profile picture to enhance your LinkedIn presence.';
+    // }
+
+    res.json({
+        profile,
+        recommendations,
+    });
+};

nextstep-backend/src/middleware/auth.ts

@@ -71,6 +71,9 @@ const authenticateTokenForParams: any & { unless: typeof unless } = async (req:
   }
 }
 
+authenticateTokenForParams.unless = unless;
+
+
 const authenticateLogoutToken = async (req: CustomRequest, res: Response, next: NextFunction) => {
     authenticateTokenHandler(req, res, next, true)
 }

nextstep-backend/src/routes/linkedin_routes.ts

@@ -0,0 +1,34 @@
+import {Request, Response, Router} from 'express';
+import passport from 'passport';
+import {loginFailure, getProfile, startLinkedIn, auth} from '../controllers/linkedin_controller';
+import {CustomRequest} from "types/customRequest";
+
+
+const router = Router();
+
+router.post('/start-linkedin', (req: Request, res: Response) => startLinkedIn(req as CustomRequest, res));
+
+
+router.get('/auth', (req, res, next) => auth(req, res, next));
+
+router.get('/callback',
+    passport.authenticate('linkedin', {
+        failureRedirect: '/failure',
+    }),
+    (req, res) => {
+    const ses = req.session
+    const userId = "" //req.session.tempUserId;
+        const { profile, accessToken } = req.user as any;
+
+        // TODO: Update your DB with LinkedIn info
+        console.log('LinkedIn user', profile.displayName);
+
+        res.clearCookie('linkedin_temp_user');
+        res.redirect('/profile');
+    }
+);
+
+router.get('/failure', loginFailure);
+router.get('/profile', getProfile);
+
+export default router;

nextstep-frontend/.gitignore

@@ -12,6 +12,8 @@ dist
 dist-ssr
 *.local
 
+.env
+
 # Editor directories and files
 .vscode/*
 !.vscode/extensions.json