Hapi Auth OIDC

A Hapi.js plugin providing OpenID Connect (OIDC) authentication with PKCE support. Supports federated Cognito tokens, mock tokens for testing, and automatic token validation and refresh. Designed for server-side Hapi applications.

Features

• Pre-login redirect to OIDC provider with PKCE support
• Post-login handling with token validation
• Automatic access token refresh with configurable early refresh window
• Federated token support via Cognito Identity Pools
• Optional request decoration to validate and refresh tokens
• Mock OIDC provider for development and testing environments
• Fully configurable cookie options

Installation

npm install @defra/hapi-auth-oidc

Usage

Importing from the library

All public functions, providers, and plugins are exported from the library entry point:

import {
  HapiAuthOidcPlugin,
  CognitoTokenProvider,
  MockProvider,
  preLogin,
  postLogin,
  validateAndRefreshToken
} from '@defra/hapi-auth-oidc'

Alternatively, import the entire library as a namespace:

import * as OIDC from '@defra/hapi-auth-oidc'
const plugin = OIDC.HapiAuthOidcPlugin
const tokenProvider = new OIDC.CognitoTokenProvider({...})

Registering the plugin

import Hapi from '@hapi/hapi'
import { AuthOidcPlugin } from './auth-oidc.js'

const server = Hapi.server({ port: 3000 })

await server.register(AuthOidcPlugin)
server.auth.strategy('azure-oidc', 'hapi-auth-oidc')

Decorating requests

If enableRefreshDecoration is true (default), requests are decorated with validateAndRefreshToken:

server.route({
  method: 'GET',
  path: '/protected',
  handler: async (request, h) => {
    const token = await request.validateAndRefreshToken({
      accessToken: request.auth.credentials.accessToken,
      refreshToken: request.auth.credentials.refreshToken
    })
    return { token }
  },
  options: {
    auth: 'azure-oidc'
  }
})

Token refresh

Standalone usage:

import { validateAndRefreshToken } from '@defra/hapi-auth-oidc'

const refreshedToken = await validateAndRefreshToken(
  { accessToken, refreshToken },
  getOidcConfig,
  60000,
  oidcScope,
  logger
)

Configuration

Plugin options

• strategyName - Name of the Hapi auth strategy (default: 'hapi-auth-oidc')

• oidc - OIDC configuration object:

  • clientId - OIDC client ID
  • discoveryUri - URL for OIDC discovery document
  • authProvider - Token provider (CognitoTokenProvider or MockProvider)
  • useHttp - Boolean flag to allow insecure HTTP requests for discovery (default: false)
  • loginCallbackUri - Redirect URI after OIDC login
  • scope - Space-separated string of scopes
  • externalBaseUrl - Base URL used to construct absolute callback URLs
  • defaultPostLoginUri - Redirect URI after login if not otherwise specified (default: '/')
  • enableRefreshDecoration - Whether to decorate requests with validateAndRefreshToken (default: true)
  • earlyRefreshMs - Milliseconds before token expiry to refresh early (default: 60000)

• cookieOptions - Cookie options for Iron encryption and security

  • password - Secret used for Iron encryption (required)
  • isSecure - Send cookie over HTTPS only (default: true)
  • encoding - 'none' | 'base64' | 'base64json' | 'iron' (default: 'iron')
  • path - Cookie path (default: '/')
  • isHttpOnly - Cookie inaccessible to client-side JS (default: true)
  • isSameSite - 'Strict' | 'Lax' | 'None' (default: 'Lax')
  • ttl - Time-to-live in milliseconds (optional)
  • domain - Cookie domain (optional)
  • ignoreErrors - Ignore encoding errors (default: true)
  • clearInvalid - Automatically clear invalid cookies (default: true)

Token Providers

CognitoTokenProvider

• Federated token provider for AWS Cognito Identity Pools.
• Automatically caches the token and refreshes it before expiry.
• Supports optional early refresh via earlyRefreshMs.

MockProvider

• Simple mock token provider for development/testing.
• Returns a hardcoded token.

Example Usage

import { config } from '../../../../config/config.js'
import {
  CognitoTokenProvider,
  HapiAuthOidcPlugin,
  MockProvider
} from '../hapi-auth-oidc/index.js'
import * as openid from 'openid-client'

const authProvider = config.get('isProduction')
  ? new CognitoTokenProvider({
      poolId: config.get('azureFederatedCredentials.identityPoolId'),
      logins: { 'cdp-portal-frontend-aad-access': 'cdp-portal-frontend' }
    })
  : new MockProvider()

const oidcCookieConfig = config.get('hapi-auth-oidc.cookie')

export const AuthOidcPlugin = {
  plugin: HapiAuthOidcPlugin,
  options: {
    strategyName: 'azure-oidc',
    oidc: {
      clientId: config.get('azureClientId'),
      discoveryUri: config.get('oidcWellKnownConfigurationUrl'),
      authProvider,
      useHttp: config.get('auth.Mock'),
      loginCallbackUri: config.get('appBaseUrl') + '/auth/callback',
      scope: `api://${config.get('azureClientId')}/cdp.user openid profile email offline_access user.read`,
      externalBaseUrl: config.get('appBaseUrl')
    },
    cookieOptions: {
      isSecure: oidcCookieConfig.isSecure,
      password: oidcCookieConfig.password
    }
  }
}