mirror of https://github.com/sveltejs/svelte
Richard Harris
5 years ago
parent
120ee28c4f
commit
fb5179b0f3
@ -0,0 +1,15 @@
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exports.up = DB => {
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DB.sql(`
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create table if not exists sessions (
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uid uuid NOT NULL PRIMARY KEY DEFAULT gen_random_uuid(),
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user_id integer REFERENCES users(id) not null,
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expiry timestamp without time zone DEFAULT now() + interval '1 year'
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);
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`);
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};
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exports.down = DB => {
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DB.sql(`
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drop table if exists sessions;
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`);
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};
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@ -1,150 +0,0 @@
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import polka from 'polka';
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import devalue from 'devalue';
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import send from '@polka/send';
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import { get, post } from 'httpie';
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import { parse, stringify } from 'querystring';
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import { decode, sign, verify } from './token';
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import { find, query } from '../utils/db';
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const {
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BASEURL,
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GITHUB_CLIENT_ID,
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GITHUB_CLIENT_SECRET,
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} = process.env;
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const OAuth = 'https://github.com/login/oauth';
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function exit(res, code, msg='') {
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const error = msg.charAt(0).toUpperCase() + msg.substring(1);
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send(res, code, { error });
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}
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function onError(err, req, res) {
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const error = err.message || err;
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const code = err.code || err.status || 500;
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res.headersSent || send(res, code, { error });
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}
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/**
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* Middleware to determine User validity
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*/
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export async function isUser(req, res) {
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const abort = exit.bind(null, res, 401);
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const auth = req.headers.authorization;
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if (!auth) return abort('Missing Authorization header');
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const [scheme, token] = auth.split(' ');
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if (scheme !== 'Bearer' || !token) return abort('Invalid Authorization format');
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let data;
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const decoded = decode(token, { complete:true });
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if (!decoded || !decoded.header) return abort('Invalid token');
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try {
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data = await verify(token);
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} catch (err) {
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return abort(err.message);
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}
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const { uid, username } = data;
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if (!uid || !username) return abort('Invalid token payload');
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try {
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const row = await find(`select * from users where uid = $1 and username = $2 limit 1`, [uid, username]);
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return row || abort('Invalid token');
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} catch (err) {
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console.error('Auth.isUser', err);
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return send(res, 500, 'Unknown error occurred');
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}
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}
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export function toUser(obj={}) {
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const { uid, username, name, avatar } = obj;
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const token = sign({ uid, username });
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return { uid, username, name, avatar, token };
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}
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export function API() {
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const app = polka({ onError });
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if (GITHUB_CLIENT_ID) {
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app.get('/auth/login', (req, res) => {
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try {
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const Location = `${OAuth}/authorize?` + stringify({
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scope: 'read:user',
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client_id: GITHUB_CLIENT_ID,
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redirect_uri: `${BASEURL}/auth/callback`,
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});
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send(res, 302, Location, { Location });
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} catch (err) {
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console.error('GET /auth/login', err);
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send(res, 500);
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}
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});
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app.get('/auth/callback', async (req, res) => {
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try {
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// Trade "code" for "access_token"
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const r1 = await post(`${OAuth}/access_token?` + stringify({
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code: req.query.code,
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client_id: GITHUB_CLIENT_ID,
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client_secret: GITHUB_CLIENT_SECRET,
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}));
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// Now fetch User details
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const { access_token } = parse(r1.data);
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const r2 = await get('https://api.github.com/user', {
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headers: {
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'User-Agent': 'svelte.dev',
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Authorization: `token ${access_token}`
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}
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});
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const { id, name, avatar_url, login } = r2.data;
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// Upsert `users` table
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const [user] = await query(`
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insert into users(uid, name, username, avatar, github_token)
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values ($1, $2, $3, $4, $5) on conflict (uid) do update
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set (name, username, avatar, github_token, updated_at) = ($2, $3, $4, $5, now())
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returning *
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`, [id, name, login, avatar_url, access_token]);
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send(res, 200, `
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<script>
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window.opener.postMessage({
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user: ${devalue(toUser(user))}
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}, window.location.origin);
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</script>
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`, {
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'Content-Type': 'text/html; charset=utf-8'
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});
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} catch (err) {
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console.error('GET /auth/callback', err);
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send(res, 500, err.data, {
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'Content-Type': err.headers['content-type'],
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'Content-Length': err.headers['content-length']
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});
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}
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});
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} else {
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// Print "Misconfigured" error
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app.get('/auth/login', (req, res) => {
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send(res, 500, `
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<body style="font-family: sans-serif; background: rgb(255,215,215); border: 2px solid red; margin: 0; padding: 1em;">
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<h1>Missing .env file</h1>
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<p>In order to use GitHub authentication, you will need to <a target="_blank" href="https://github.com/settings/developers">register an OAuth application</a> and create a local .env file:</p>
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<pre>GITHUB_CLIENT_ID=[YOUR_APP_ID]\nGITHUB_CLIENT_SECRET=[YOUR_APP_SECRET]\nBASEURL=http://localhost:3000</pre>
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<p>The <code>BASEURL</code> variable should match the callback URL specified for your app.</p>
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<p>See also <a target="_blank" href="https://github.com/sveltejs/svelte/tree/master/site#repl-github-integration">here</a></p>
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</body>
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`, {
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'Content-Type': 'text/html; charset=utf-8'
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});
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});
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}
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return app;
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}
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@ -1,22 +0,0 @@
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import * as jwt from 'jsonwebtoken';
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const { JWT_KEY, JWT_ALG, JWT_EXP } = process.env;
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const CONFIG = {
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expiresIn: JWT_EXP,
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issuer: 'https://svelte.dev',
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audience: 'https://svelte.dev',
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algorithm: JWT_ALG,
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};
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export const decode = jwt.decode;
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export function sign(obj, opts, cb) {
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opts = Object.assign({}, opts, CONFIG);
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return jwt.sign(obj, JWT_KEY, opts, cb);
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}
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export function verify(str, opts, cb) {
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opts = Object.assign({}, opts, CONFIG);
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return jwt.verify(str, JWT_KEY, opts, cb);
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}
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@ -1,8 +0,0 @@
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import send from '@polka/send';
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import { isUser, toUser } from '../../backend/auth';
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export async function get(req, res) {
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const user = await isUser(req, res);
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res.setHeader('Cache-Control', 'private, no-cache, no-store');
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return send(res, 200, user ? toUser(user) : null);
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}
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@ -1,21 +1,169 @@
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import polka from 'polka';
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import send from '@polka/send';
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import devalue from 'devalue';
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import { get, post } from 'httpie';
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import sirv from 'sirv';
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import * as sapper from '@sapper/server';
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import { API } from './backend/auth';
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import * as cookie from 'cookie';
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import { parse, stringify } from 'querystring';
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import { find, query } from './utils/db';
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const { PORT = 3000 } = process.env;
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const {
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PORT = 3000,
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GITHUB_CLIENT_ID,
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GITHUB_CLIENT_SECRET,
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BASEURL
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} = process.env;
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API()
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.use(
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sirv('static', {
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dev: process.env.NODE_ENV === 'development',
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setHeaders(res) {
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res.setHeader('Access-Control-Allow-Origin', '*');
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res.hasHeader('Cache-Control') || res.setHeader('Cache-Control', 'max-age=600'); // 10min default
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const OAuth = 'https://github.com/login/oauth';
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const app = polka({
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onError: (err, req, res) => {
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const error = err.message || err;
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const code = err.code || err.status || 500;
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res.headersSent || send(res, code, { error });
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}
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});
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const to_user = obj => ({
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uid: obj.uid,
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username: obj.username,
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name: obj.name,
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avatar: obj.avatar
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});
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if (GITHUB_CLIENT_ID) {
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app.use(async (req, res, next) => {
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if (req.headers.cookie) {
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const cookies = cookie.parse(req.headers.cookie);
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if (cookies.sid) {
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if (req.url === '/auth/logout') {
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await query(`
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delete from sessions where uid = $1
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`, [cookies.sid]);
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send(res, 200);
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return;
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}
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req.user = await find(`
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select users.id, users.uid, users.username, users.name, users.avatar
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from sessions
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left join users on sessions.user_id = users.id
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where sessions.uid = $1 and expiry > now()
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`, [cookies.sid]);
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}
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}),
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}
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next();
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});
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app.get('/auth/login', (req, res) => {
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try {
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const Location = `${OAuth}/authorize?` + stringify({
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scope: 'read:user',
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client_id: GITHUB_CLIENT_ID,
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redirect_uri: `${BASEURL}/auth/callback`,
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});
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send(res, 302, Location, { Location });
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} catch (err) {
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console.error('GET /auth/login', err);
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send(res, 500);
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}
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});
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app.get('/auth/callback', async (req, res) => {
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try {
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// Trade "code" for "access_token"
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const r1 = await post(`${OAuth}/access_token?` + stringify({
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code: req.query.code,
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client_id: GITHUB_CLIENT_ID,
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client_secret: GITHUB_CLIENT_SECRET,
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}));
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// Now fetch User details
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const { access_token } = parse(r1.data);
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const r2 = await get('https://api.github.com/user', {
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headers: {
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'User-Agent': 'svelte.dev',
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Authorization: `token ${access_token}`
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}
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});
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sapper.middleware({
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//
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const { id: uid, name, avatar_url, login } = r2.data;
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// Upsert `users` table
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const [user] = await query(`
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insert into users(uid, name, username, avatar, github_token)
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values ($1, $2, $3, $4, $5) on conflict (uid) do update
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set (name, username, avatar, github_token, updated_at) = ($2, $3, $4, $5, now())
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returning *
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`, [uid, name, login, avatar_url, access_token]);
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const session = await find(`
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insert into sessions(user_id)
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values ($1)
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returning *
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`, [user.id]);
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const cookie = [
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`sid=${session.uid}`,
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`Max-Age=31536000`,
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`Path=/`,
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`HttpOnly`
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];
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res.writeHead(200, {
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'Set-Cookie': cookie.join('; '),
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'Content-Type': 'text/html; charset=utf-8'
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});
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res.end(`
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<script>
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window.opener.postMessage({
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user: ${devalue(to_user(user))}
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}, window.location.origin);
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</script>
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`);
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} catch (err) {
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console.error('GET /auth/callback', err);
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send(res, 500, err.data, {
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'Content-Type': err.headers['content-type'],
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'Content-Length': err.headers['content-length']
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});
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}
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});
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} else {
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// Print "Misconfigured" error
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app.get('/auth/login', (req, res) => {
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send(res, 500, `
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<body style="font-family: sans-serif; background: rgb(255,215,215); border: 2px solid red; margin: 0; padding: 1em;">
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<h1>Missing .env file</h1>
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<p>In order to use GitHub authentication, you will need to <a target="_blank" href="https://github.com/settings/developers">register an OAuth application</a> and create a local .env file:</p>
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<pre>GITHUB_CLIENT_ID=[YOUR_APP_ID]\nGITHUB_CLIENT_SECRET=[YOUR_APP_SECRET]\nBASEURL=http://localhost:3000</pre>
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<p>The <code>BASEURL</code> variable should match the callback URL specified for your app.</p>
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<p>See also <a target="_blank" href="https://github.com/sveltejs/svelte/tree/master/site#repl-github-integration">here</a></p>
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</body>
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`, {
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'Content-Type': 'text/html; charset=utf-8'
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});
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});
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}
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app.use(
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sirv('static', {
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dev: process.env.NODE_ENV === 'development',
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setHeaders(res) {
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res.setHeader('Access-Control-Allow-Origin', '*');
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res.hasHeader('Cache-Control') || res.setHeader('Cache-Control', 'max-age=600'); // 10min default
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}
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}),
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sapper.middleware({
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session: req => ({
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user: to_user(req.user)
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})
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)
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.listen(PORT);
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})
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);
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app.listen(PORT);
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@ -1,33 +0,0 @@
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import { writable } from 'svelte/store';
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export const user = writable(null);
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if (process.browser) {
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const storageKey = 'svelte-dev:token';
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// On load, get the last-known user token (if any)
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// Note: We can skip this all by writing User data?
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const token = localStorage.getItem(storageKey);
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// Write changes to localStorage
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user.subscribe(obj => {
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if (obj) {
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localStorage.setItem(storageKey, obj.token);
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} else {
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localStorage.removeItem(storageKey);
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}
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});
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if (token) {
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// If token, refresh the User data from API
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const headers = { Authorization: `Bearer ${token}` };
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fetch('/auth/me.json', { headers })
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.then(r => r.ok ? r.json() : null)
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.then(user.set);
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}
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}
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export function logout() {
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user.set(null);
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}
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