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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,161 @@ | ||
| import fastifyCookie from '@fastify/cookie'; | ||
| import { API_EVENTS, Context, UnchainedContextResolver } from '@unchainedshop/api'; | ||
| import { emit } from '@unchainedshop/events'; | ||
| import { FastifyInstance, FastifyRequest } from 'fastify'; | ||
| import FastifyOAuth2 from '@fastify/oauth2'; | ||
| import jwt from 'jsonwebtoken'; | ||
|
|
||
| const { | ||
| UNCHAINED_KEYCLOAK_CALLBACK_PATH = '/login/keycloak/callback', | ||
| UNCHAINED_KEYCLOAK_CLIENT_ID = 'unchained-local', | ||
| UNCHAINED_KEYCLOAK_CLIENT_SECRET, | ||
| UNCHAINED_KEYCLOAK_REALM_URL = 'http://localhost:8080/realms/master', | ||
| ROOT_URL = 'http://localhost:4010', | ||
| } = process.env; | ||
|
|
||
| export default async function setupKeycloak(app: FastifyInstance) { | ||
| if (!UNCHAINED_KEYCLOAK_CLIENT_SECRET || UNCHAINED_KEYCLOAK_REALM_URL) | ||
| throw new Error( | ||
| 'Environment variables UNCHAINED_KEYCLOAK_CLIENT_SECRET and UNCHAINED_KEYCLOAK_REALm_URL are required', | ||
| ); | ||
|
|
||
| await app.register(fastifyCookie); | ||
|
|
||
| app.register(FastifyOAuth2, { | ||
| name: 'keycloak', | ||
| credentials: { | ||
| client: { | ||
| id: UNCHAINED_KEYCLOAK_CLIENT_ID, | ||
| secret: UNCHAINED_KEYCLOAK_CLIENT_SECRET, | ||
| }, | ||
| }, | ||
| startRedirectPath: '/login', | ||
| scope: ['profile', 'email', 'openid'], | ||
| callbackUri: `${ROOT_URL}${UNCHAINED_KEYCLOAK_CALLBACK_PATH}`, | ||
| discovery: { issuer: UNCHAINED_KEYCLOAK_REALM_URL }, | ||
| }); | ||
|
|
||
| app.get( | ||
| UNCHAINED_KEYCLOAK_CALLBACK_PATH, | ||
| async function ( | ||
| this: FastifyInstance & { | ||
| keycloak: FastifyOAuth2.OAuth2Namespace; | ||
| }, | ||
| request: FastifyRequest & { | ||
| unchainedContext: Context; | ||
| }, | ||
| reply, | ||
| ) { | ||
| try { | ||
| const accessToken = await this.keycloak.getAccessTokenFromAuthorizationCodeFlow(request); | ||
| const decoded = jwt.decode(accessToken.token.id_token); | ||
| const { | ||
| sub, | ||
| resource_access, | ||
| preferred_username, | ||
| name, | ||
| given_name, | ||
| family_name, | ||
| email, | ||
| email_verified, | ||
| } = decoded as { | ||
| sub: string; | ||
| resource_access: Record<string, { roles: string[] }>; | ||
| preferred_username: string; | ||
| name?: string; | ||
| given_name?: string; | ||
| family_name?: string; | ||
| email?: string; | ||
| email_verified: boolean; | ||
| }; | ||
|
|
||
| const roles = resource_access?.['unchained-local']?.roles || []; | ||
| const username = preferred_username || `unchained-local:${sub}`; | ||
| const user = await request.unchainedContext.modules.users.findUserByUsername(username); | ||
|
|
||
| if (!user) { | ||
| await request.unchainedContext.modules.users.createUser( | ||
| { | ||
| // eslint-disable-next-line | ||
| // @ts-ignore WE KNOW THAT WE CAN SET THAT FIELD | ||
| _id: `unchained-local:${sub}`, | ||
| username, | ||
| password: null, | ||
| email: email_verified ? email : null, | ||
| profile: { | ||
| displayName: name, | ||
| address: { | ||
| firstName: given_name, | ||
| lastName: family_name, | ||
| }, | ||
| }, | ||
| roles, | ||
| }, | ||
| { skipMessaging: true, skipPasswordEnrollment: true }, | ||
| ); | ||
| } | ||
| // eslint-disable-next-line | ||
| // @ts-ignore | ||
| request.session.keycloak = accessToken.token; | ||
| return reply.redirect('http://localhost:3000/'); | ||
| } catch (e) { | ||
| console.error(e); | ||
| reply.status(500); | ||
| return reply.send(); | ||
| } | ||
| }, | ||
| ); | ||
|
|
||
| return (contextResolver: UnchainedContextResolver) => async (props, req) => { | ||
| // eslint-disable-next-line | ||
| const keycloakInstance = (app as any).keycloak as FastifyOAuth2.OAuth2Namespace; | ||
| const context = await contextResolver(props); | ||
| if (context.user || !req.session.keycloak) return context; | ||
|
|
||
| try { | ||
| const isExpired = new Date(req.session.keycloak.expires_at) < new Date(); | ||
| if (isExpired) { | ||
| req.session.keycloak = ( | ||
| await keycloakInstance.getNewAccessTokenUsingRefreshToken(req.session.keycloak, {}) | ||
| ).token; | ||
| } | ||
|
|
||
| const { | ||
| sub, | ||
| resource_access, | ||
| }: { | ||
| sub: string; | ||
| resource_access: Record<string, { roles: string[] }>; | ||
| } = jwt.decode(req.session.keycloak.id_token); | ||
|
|
||
| let user = await context.modules.users.findUserById(`unchained-local:${sub}`); | ||
|
|
||
| if (isExpired) { | ||
| // only update roles when the token has been refreshed | ||
| const roles = resource_access?.['unchained-local']?.roles || []; | ||
| if (roles.join(':') !== user.roles.join(':')) { | ||
| user = await context.modules.users.updateRoles(user._id, roles); | ||
| } | ||
| } | ||
|
|
||
| return { | ||
| ...context, | ||
| userId: user._id, | ||
| user, | ||
| logout: async () => { | ||
| const tokenObject = { | ||
| // eslint-disable-next-line | ||
| _id: (req as any).session.sessionId, | ||
| userId: user._id, | ||
| }; | ||
| delete req.session.keycloak; | ||
| await emit(API_EVENTS.API_LOGOUT, tokenObject); | ||
| return true; | ||
| }, | ||
| }; | ||
| } catch { | ||
| delete req.session.keycloak; | ||
| } | ||
| return context; | ||
| }; | ||
| } |