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feat: demo application

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janishutz
2026-09-10 13:33:58 +02:00
parent e12694bf0a
commit 355aab7f6f
13 changed files with 1494 additions and 569 deletions
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README.md
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@@ -1,3 +1,15 @@
# auth # Demo app
Create a `.env` file containing
```env
OIDC_CLIENT_ID=<CLIENT ID>
OIDC_CLIENT_SECRET=<CLIENT SECRET>
OIDC_ISSUER=https://auth.example.org
SIGNING_SECRET=<LONG RANDOM STRING>
APP_BASE_URL=https://app.example.org
```
Wrapper on top of `openid-client`, with integration into `express.js` You can then run the app using
```bash
tsc && node --env-file=.env dist/index.js
```
The app should be served via HTTPS on a reverse proxy.
build.sh
-14
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@@ -1,14 +0,0 @@
#!/bin/bash
tsc --declaration
cp ./package.json ./dist
cp ./README.md ./dist
mkdir dist/public || true
cp ./public/auto-redirect.html ./dist/public/auto-redirect.html
cp ./public/error-page.html ./dist/public/error-page.html
if [[ -z $1 ]]; then
rm dist/testing.js
rm dist/testing.d.ts
fi
echo "Build complete"
package-lock.json
Generated
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package.json
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@@ -1,7 +1,7 @@
{ {
"name": "@janishutz/oidc-login-sdk", "name": "oidc-express-demo",
"version": "1.0.0", "version": "1.0.0",
"description": "Simple, limited wrapper on top of passport for oidc authentication, used by my FOSS projects", "description": "Simple example of OIDC using express",
"keywords": [ "keywords": [
"oidc", "oidc",
"auth" "auth"
@@ -18,21 +18,16 @@
"test": "echo \"Error: no test specified\" && exit 1" "test": "echo \"Error: no test specified\" && exit 1"
}, },
"dependencies": { "dependencies": {
"@types/cors": "^2.8.19",
"cors": "^2.8.6",
"express": "^5.2.1", "express": "^5.2.1",
"express-session": "^1.19.0", "express-openid-connect": "^3.4.0"
"openid-client": "^6.8.8",
"passport": "^0.7.0",
"passport-openidconnect": "^0.1.2"
}, },
"devDependencies": { "devDependencies": {
"@eslint/js": "^10.0.1", "@eslint/js": "^10.0.1",
"@stylistic/eslint-plugin": "^5.10.0", "@stylistic/eslint-plugin": "^5.10.0",
"@types/express": "^5.0.6", "@types/express": "^5.0.6",
"@types/express-session": "^1.19.0",
"@types/node": "^22.20.2", "@types/node": "^22.20.2",
"@types/openid-client": "^3.1.6",
"@types/passport": "^1.0.17",
"@types/passport-openidconnect": "^0.1.3",
"eslint": "^10.10.0", "eslint": "^10.10.0",
"eslint-plugin-vue": "^10.11.0", "eslint-plugin-vue": "^10.11.0",
"globals": "^17.12.0", "globals": "^17.12.0",
public/auto-redirect.html
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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>Login - janishutz.com Account SDK</title>
<style>
html, body {
width: 100%;
height: 100%;
padding: 0;
margin: 0;
}
body {
font-family: sans-serif;
display: flex;
justify-content: center;
align-items: center;
flex-direction: column;
color: white;
background-color: #202020;
font-size: 200%;
}
</style>
</head>
<body>
<h1>Redirecting to login</h1>
<p>Please be patient...</p>
<script>
location.href = '[[ redirect ]]'
</script>
</body>
</html>
public/error-page.html
-35
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@@ -1,35 +0,0 @@
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>Login - janishutz.com Account SDK</title>
<style>
html,
body {
width: 100%;
height: 100%;
padding: 0;
margin: 0;
}
body {
font-family: sans-serif;
display: flex;
justify-content: center;
align-items: center;
flex-direction: column;
color: white;
background-color: #202020;
font-size: 200%;
}
</style>
</head>
<body>
<h1>Failed to log in</h1>
<p>Click <a href="/auth/v2/login">here</a> to try again</p>
</body>
</html>
setup.sh
Executable
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@@ -0,0 +1 @@
#!/bin/bash
src/auth.ts
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import express from 'express';
export const ensureAuth = ( redirectOnError?: string ) => {
return ( request: express.Request, response: express.Response, next: express.NextFunction ) => {
if ( request.isAuthenticated() ) {
next();
} else {
if ( redirectOnError ) {
response.redirect( redirectOnError );
} else {
response.sendStatus( 401 );
}
}
};
};
src/cors.ts
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import {
CorsOptions
} from 'cors';
import cors from 'cors';
let corsWhitelist: string[] = [];
/**
* Set the URLs that are allowed to send CORS requests
* @param whitelist - An array of URLs that are allowed to send CORS requests
*/
const setWhitelist = ( whitelist: string[] ) => {
corsWhitelist = whitelist;
};
/**
* Express.js middleware for cors verification
* @param rest - Whether or not to allow REST requests or not (default = false)
*/
const middleware = ( rest: boolean = false ) => {
return cors( generateOpts( rest ) );
};
/**
* Generate the options for the CORS library
* @param rest - Whether to allow REST requests or not (default = false)
* @returns CORS options object that can be used for the cors library
*/
const generateOpts = ( rest: boolean = false ): CorsOptions => {
const corsOpts: CorsOptions = {
'credentials': true,
'optionsSuccessStatus': 200,
'origin': ( origin, cb ) => {
const status = blockREST( origin! );
cb( null, status );
}
};
if ( rest ) {
corsOpts[ 'origin' ] = ( origin, cb ) => {
const status = allowREST( origin! );
cb( null, status );
};
}
return corsOpts;
};
const blockREST = ( origin: string ): boolean => {
return corsWhitelist.includes( origin );
};
const allowREST = ( origin: string ): boolean => {
return blockREST( origin ) || !origin;
};
export default {
generateOpts,
setWhitelist,
middleware
};
src/dtype.d.ts
Vendored
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declare global {
namespace Express {
interface User {
'id': string;
'username'?: string;
'displayName'?: string;
'emails'?: {
'value': string,
'type'?: string
}[];
}
}
}
export interface OIDCConfig {
'clientID': string;
'clientSecret': string;
'issuer': URL;
'scopes'?: ( 'email' | 'profile' )[],
}
export interface AppConfig {
'failRedirect'?: string;
'successRedirect'?: string;
'logoutRedirect'?: string;
'url': URL;
'sessionSecret': string;
'cookieName'?: string;
}
export interface Config {
'oidc': OIDCConfig;
'prod': boolean;
'app': AppConfig
}
src/index.ts
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import connect from 'express-openid-connect';
import express from 'express'; import express from 'express';
export * from './routes.js'; const app = express();
export * from './auth.js'; app.use( connect.auth( {
'authRequired': false,
'issuerBaseURL': process.env.OIDC_ISSUER,
'clientID': process.env.OIDC_CLIENT_ID,
'clientSecret': process.env.OIDC_CLIENT_SECRET,
'secret': process.env.SIGNING_SECRET,
'baseURL': process.env.APP_BASE_URL,
'authorizationParams': {
'scope': 'openid profile email',
'response_type': 'code'
}
} ) );
export type * from './dtype.d.ts'; app.get( '/', ( _request, response ) => {
response.send( 'Hello World' );
} );
app.get( '/account', connect.requiresAuth(), ( request, response ) => {
response.send( 'Account' );
} );
export const getUserId = ( request: express.Request ): string | undefined => { app.listen( 8080 );
return request.user?.id;
};
src/routes.ts
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import {
Config
} from './dtype.js';
import OIDCStrategy from 'passport-openidconnect';
import {
discovery
} from 'openid-client';
import {
ensureAuth
} from './auth.js';
import express from 'express';
import passport from 'passport';
import session from 'express-session';
/**
* Add the necessary routes for login
* @param app - Express application to register routes to
* @param config - Configuration for the Auth system
* @param verify - A verification function. Should create user if user doesn't exist
* @param getUser - Function to get a user by user ID. Optional, if not provided, only UID will be recovered (should be good enough in most cases)
*/
export const addRoutes = async (
app: express.Application,
config: Config,
verify: ( profile: OIDCStrategy.Profile ) => Promise<boolean>,
getUser?: ( id: string ) => Promise<Express.User>
) => {
app.use( session( {
'secret': config.app.sessionSecret,
'cookie': {
'httpOnly': true,
'secure': config.prod
},
'resave': false,
'saveUninitialized': false
} ) );
app.use( passport.session() );
app.use( passport.initialize() );
passport.serializeUser( ( user, cb ) => {
cb( null, user.id );
} );
if ( getUser )
passport.deserializeUser<string>( async ( user, cb ) => {
return cb( null, await getUser( user ) );
} );
else
passport.deserializeUser<string>( ( user, cb ) => {
return cb( null, {
'id': user
} );
} );
const oidcServerConfig = ( await discovery( config.oidc.issuer, config.oidc.clientID, config.oidc.clientSecret ) ).serverMetadata();
const iss = config.oidc.issuer.toString();
passport.use( new OIDCStrategy(
{
'clientID': config.oidc.clientID,
'clientSecret': config.oidc.clientSecret,
'callbackURL': config.app.url.toString() + 'auth/v2/verify',
'authorizationURL': oidcServerConfig.authorization_endpoint ?? oidcServerConfig.issuer + '/auth',
'issuer': iss,
'userInfoURL': oidcServerConfig.userinfo_endpoint ?? oidcServerConfig.issuer + '/me',
'tokenURL': oidcServerConfig.token_endpoint ?? oidcServerConfig.issuer + '/token',
'scope': config.oidc.scopes
},
async ( issuer: string, profile: OIDCStrategy.Profile, cb: OIDCStrategy.VerifyCallback ) => {
if ( issuer !== iss ) cb( new Error( 'ERR_FORBIDDEN' ) );
cb( null, profile, await verify( profile ) );
}
) );
// TODO: Allow CORS here
app.get( '/auth/v2/login', passport.authenticate( 'openidconnect' ) );
app.get( '/auth/v2/fail', ( _request, response ) => {
response.sendFile( './public/error-page.html' );
} );
app.get( '/auth/v2/verify', passport.authenticate( 'openidconnect', {
'failureRedirect': config.app.failRedirect ?? '/auth/v2/fail',
'failureMessage': true
} ), ( request: express.Request, response: express.Response ) => {
request.session.save();
response.redirect( config.app.successRedirect ?? '/' );
} );
// TODO: Allow CORS here
app.get( '/auth/v2/logout', ensureAuth( config.app.failRedirect ), ( request: express.Request, response: express.Response ) => {
request.logout( {
'keepSessionInfo': false
}, err => {
console.error( err );
} );
// Ensure session is fully destroyed
request.session.destroy( () => {} );
response.redirect( config.app.logoutRedirect ?? '/' );
} );
};
src/testing.ts
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import {
addRoutes,
ensureAuth
} from './index.js';
import express from 'express';
const app = express();
addRoutes( app, {
'oidc': {
'clientID': process.env.CLIENT_ID ?? '',
'clientSecret': process.env.CLIENT_SECRET ?? '',
'issuer': new URL( 'https://home.janishutz.com/oidc' )
},
'app': {
'sessionSecret': 'secret',
'url': new URL( 'https://home2.janishutz.com' ),
'successRedirect': '/account'
},
'prod': false
}, async uid => {
console.log( uid );
return true;
} );
app.get( '/', ( _request, response ) => {
response.send( 'Hello World' );
} );
app.get( '/account', ensureAuth( '/' ), ( _request, response ) => {
response.send( 'Account' );
} );
app.listen( 8080 );