Files
Transcendence/srcs/backend/routes/auth.js
T
2026-01-16 19:31:16 +01:00

89 lines
3.0 KiB
JavaScript

import express from 'express';
import authService from '../services/auth.js';
import fetch from 'node-fetch';
import bcrypt from 'bcrypt';
import jwt from 'jsonwebtoken';
import {query} from '../db.js';
import crypto from 'crypto';
const router = express.Router();
router.post('/register', async(req, res) =>
{
const {username, password} = req.body;
if (!username || !password)
return (res.status(400).json({error: 'Missing fields'}));
const result = await authService.register(username, password);
res.status(result.status).json(result.data);
});
router.post('/login', async(req, res) =>
{
console.log("received login!");
const {username, password} = req.body;
const result = await authService.login(username, password);
res.status(result.status).json(result.data);
});
router.get('/github', (req, res) => {
const githubAuthUrl = `https://github.com/login/oauth/authorize?` +
`client_id=${process.env.GITHUB_CLIENT_ID}&` +
`redirect_uri=${encodeURIComponent(process.env.GITHUB_CALLBACK_URL || process.env.GITHUB_REDIRECT_URI)}&` +
`scope=user:email`;
res.redirect(githubAuthUrl);
});
router.get('/github/callback', async (req, res) => {
const code = req.query.code;
if (!code) {
return res.status(400).send('Missing code');
}
try {
const tokenResponse = await fetch('https://github.com/login/oauth/access_token', {
method: 'POST',
headers: { 'Accept': 'application/json', 'Content-Type': 'application/json' },
body: JSON.stringify({
client_id: process.env.GITHUB_CLIENT_ID,
client_secret: process.env.GITHUB_CLIENT_SECRET,
code: code
})
});
const tokenData = await tokenResponse.json();
const accessToken = tokenData.access_token;
if (!accessToken) throw new Error('No access token');
const userResponse = await fetch('https://api.github.com/user', {
headers: { 'Authorization': `Bearer ${accessToken}`, 'User-Agent': 'Transcendence' }
});
const ghUser = await userResponse.json();
const ghUsername = ghUser.login || `github_${ghUser.id}`;
let result = await query(`SELECT id FROM users WHERE username = $1`, [ghUsername]);
let userId;
if (result.rows.length > 0) {
userId = result.rows[0].id;
} else {
const randomPwd = crypto.randomBytes(16).toString('hex');
const passwordHash = await bcrypt.hash(randomPwd, 10);
await query(`INSERT INTO users (username, password_hash) VALUES ($1, $2)`, [ghUsername, passwordHash]);
const inserted = await query(`SELECT id FROM users WHERE username = $1`, [ghUsername]);
userId = inserted.rows[0].id;
}
// Issue JWT
const token = jwt.sign({ userId: userId, username: ghUsername }, process.env.JWT_SECRET, { expiresIn: '1h' });
// Send token to opener window and close popup
res.send(`<!doctype html><html><body><script>window.opener && window.opener.postMessage({token: '${token}'}, '*'); window.close();</script></body></html>`);
} catch (err) {
console.error(err);
res.status(500).send('GitHub OAuth error');
}
});
export default router;