Extract groombook/api from monorepo with CI workflow
- Add source code from apps/api - Add packages/db and packages/types workspace dependencies - Add GitHub Actions CI workflow (lint, typecheck, test, docker) - Generate pnpm-lock.yaml - Add .gitignore Co-Authored-By: Paperclip <noreply@paperclip.ing>
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import { betterAuth } from "better-auth";
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import { drizzleAdapter } from "better-auth/adapters/drizzle";
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import { genericOAuth } from "better-auth/plugins";
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import { getDb, authProviderConfig, eq } from "@groombook/db";
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import { decryptSecret } from "@groombook/db";
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import { sendEmail } from "../services/email.js";
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const BETTER_AUTH_SECRET = process.env.BETTER_AUTH_SECRET;
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const BETTER_AUTH_URL = process.env.BETTER_AUTH_URL ?? "http://localhost:3000";
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// Auth instance — initialized lazily via initAuth()
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// eslint-disable-next-line @typescript-eslint/no-explicit-any
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let authInstance: any = null;
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let authInitPromise: Promise<void> | null = null;
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/** Returns the current auth instance. Throws if not yet initialized. */
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export function getAuth() {
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if (!authInstance) {
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throw new Error(
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"Auth not initialized. Call initAuth() at startup before handling requests."
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);
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}
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return authInstance;
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}
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/** Returns a promise that resolves when auth is initialized. */
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export function getAuthPromise() {
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return authInitPromise;
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}
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/** Returns which OAuth/social providers are configured via env vars. */
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export function getActiveProviders(): string[] {
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const providers: string[] = [];
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if (process.env.GOOGLE_CLIENT_ID && process.env.GOOGLE_CLIENT_SECRET) {
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providers.push("google");
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}
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if (process.env.GITHUB_CLIENT_ID && process.env.GITHUB_CLIENT_SECRET) {
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providers.push("github");
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}
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if (process.env.OIDC_ISSUER && process.env.OIDC_CLIENT_ID && process.env.OIDC_CLIENT_SECRET) {
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providers.push("authentik");
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}
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return providers;
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}
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/**
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* Re-initializes the Better-Auth instance after auth config changes.
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*
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* Clears both authInstance and authInitPromise, then calls initAuth() to
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* re-read config from DB and build a fresh Better-Auth instance.
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* Sessions are DB-backed and survive the re-init.
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*/
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export async function reinitAuth(): Promise<void> {
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authInstance = null;
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authInitPromise = null;
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await initAuth();
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console.log("[auth] Re-initialized auth instance after config change");
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}
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/**
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* Initializes the Better-Auth instance.
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*
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* Config resolution chain:
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* 1. Query auth_provider_config table for an enabled provider
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* 2. If DB config exists → use it (decrypt clientSecret)
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* 3. If no DB config → fall back to OIDC_* env vars
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* 4. If neither → auth is unconfigured (getAuth() returns null, AUTH_DISABLED implied)
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*
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* Idempotent — subsequent calls return immediately after initialization completes.
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*/
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export async function initAuth(): Promise<void> {
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if (authInstance) return; // Already initialized
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if (authInitPromise) {
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await authInitPromise;
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return;
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}
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authInitPromise = (async () => {
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// Guard: require BETTER_AUTH_SECRET unless explicitly in dev/demo mode
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if (!BETTER_AUTH_SECRET && process.env.AUTH_DISABLED !== "true") {
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throw new Error(
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"[FATAL] BETTER_AUTH_SECRET environment variable is required when auth is enabled"
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);
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}
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// AUTH_DISABLED=true means dev/demo mode — still build Better-Auth with placeholder
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// config so auth.handler exists (middleware bypasses it anyway)
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if (process.env.AUTH_DISABLED === "true") {
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console.warn("[auth] AUTH_DISABLED=true — building placeholder auth instance");
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authInstance = betterAuth({
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database: drizzleAdapter(getDb(), { provider: "pg" }),
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secret: BETTER_AUTH_SECRET!,
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baseURL: BETTER_AUTH_URL,
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rateLimit: {
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enabled: true,
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max: 100,
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window: 10,
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storage: "memory",
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customRules: {
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"/get-session": false,
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},
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},
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plugins: [
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genericOAuth({
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config: [
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{
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providerId: "authentik",
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clientId: "placeholder",
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clientSecret: "placeholder",
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discoveryUrl: undefined,
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scopes: ["openid", "profile", "email"],
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},
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],
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}),
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],
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session: {
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expiresIn: 60 * 60 * 24 * 7,
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updateAge: 60 * 60 * 24,
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cookieCache: { enabled: false },
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},
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trustedOrigins: [process.env.CORS_ORIGIN ?? "http://localhost:5173"],
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});
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return;
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}
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// Step 1: Try to load config from DB
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const db = getDb();
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const [dbConfig] = await db
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.select()
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.from(authProviderConfig)
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.where(eq(authProviderConfig.enabled, true))
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.limit(1);
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let providerConfig: {
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providerId: string;
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clientId: string;
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clientSecret: string;
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issuerUrl: string;
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internalBaseUrl?: string;
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scopes: string;
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};
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if (dbConfig) {
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// Step 2: Use DB config (decrypt clientSecret)
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const decryptedSecret = decryptSecret(dbConfig.clientSecret);
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providerConfig = {
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providerId: dbConfig.providerId,
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clientId: dbConfig.clientId,
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clientSecret: decryptedSecret,
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issuerUrl: dbConfig.issuerUrl,
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internalBaseUrl: dbConfig.internalBaseUrl ?? undefined,
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scopes: dbConfig.scopes,
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};
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console.log("[auth] Using DB config for provider:", dbConfig.providerId);
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} else {
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// Step 3: Fall back to env vars
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const oidcIssuer = process.env.OIDC_ISSUER;
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const oidcClientId = process.env.OIDC_CLIENT_ID;
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const oidcClientSecret = process.env.OIDC_CLIENT_SECRET;
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if (!oidcIssuer || !oidcClientId || !oidcClientSecret) {
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// Step 4: Neither DB config nor env vars — auth is unconfigured
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console.warn(
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"[auth] No auth provider configured. Set up auth_provider_config in DB or OIDC_* env vars."
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);
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return; // authInstance stays null — AUTH_DISABLED mode
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}
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providerConfig = {
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providerId: "authentik",
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clientId: oidcClientId,
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clientSecret: oidcClientSecret,
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issuerUrl: oidcIssuer,
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internalBaseUrl: process.env.OIDC_INTERNAL_BASE,
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scopes: "openid profile email",
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};
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console.log("[auth] Using env var config (no DB config found)");
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}
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const hasGoogle = !!(process.env.GOOGLE_CLIENT_ID && process.env.GOOGLE_CLIENT_SECRET);
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const hasGitHub = !!(process.env.GITHUB_CLIENT_ID && process.env.GITHUB_CLIENT_SECRET);
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const issuerUrlObj = new URL(providerConfig.issuerUrl);
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const issuerHostname = issuerUrlObj.hostname;
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const discoveryUrlStr = `${providerConfig.issuerUrl}/.well-known/openid-configuration`;
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let oidcConfig: Record<string, string> = {};
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try {
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const discoveryRes = await fetch(discoveryUrlStr);
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if (discoveryRes.ok) {
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const discovery = await discoveryRes.json() as {
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authorization_endpoint?: string;
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token_endpoint?: string;
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userinfo_endpoint?: string;
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};
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const replaceHost = (url: string, newHost: string) => {
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try {
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const parsed = new URL(url);
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const newParsed = new URL(newHost);
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return `${newParsed.origin}${parsed.pathname}${parsed.search}`;
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} catch {
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return url;
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}
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};
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const authzUrl = discovery.authorization_endpoint;
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const tokenUrl = discovery.token_endpoint;
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const userInfoUrl = discovery.userinfo_endpoint;
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if (authzUrl && tokenUrl && userInfoUrl) {
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const authzUrlObj = new URL(authzUrl);
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// Only validate authorizationUrl hostname against issuer — token/userinfo
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// may legitimately use internal hostnames (OIDC_INTERNAL_BASE) for server-to-server calls.
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if (authzUrlObj.hostname !== issuerHostname) {
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throw new Error(
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`[FATAL] OIDC discovery URL hostname mismatch: expected '${issuerHostname}' but got '${authzUrlObj.hostname}'. This may indicate a man-in-the-middle attack.`
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);
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}
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oidcConfig = {
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authorizationUrl: authzUrl,
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tokenUrl: providerConfig.internalBaseUrl
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? replaceHost(tokenUrl, providerConfig.internalBaseUrl)
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: tokenUrl,
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userInfoUrl: providerConfig.internalBaseUrl
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? replaceHost(userInfoUrl, providerConfig.internalBaseUrl)
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: userInfoUrl,
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};
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console.log("[auth] OIDC discovery successful, provider:", providerConfig.providerId);
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} else {
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console.warn("[auth] OIDC discovery missing required endpoints, using discoveryUrl only");
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}
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} else {
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console.warn(`[auth] OIDC discovery failed (${discoveryRes.status}), using discoveryUrl only`);
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}
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} catch (err) {
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console.warn(`[auth] OIDC discovery fetch failed: ${err}, using discoveryUrl only`);
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}
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// Build Better-Auth instance using resolved config
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authInstance = betterAuth({
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database: drizzleAdapter(db, {
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provider: "pg",
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}),
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secret: BETTER_AUTH_SECRET,
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baseURL: BETTER_AUTH_URL,
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rateLimit: {
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enabled: true,
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max: 100,
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window: 10,
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storage: "memory",
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customRules: {
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"/get-session": false,
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},
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},
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account: {
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storeStateStrategy: "cookie" as const,
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},
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emailAndPassword: {
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enabled: true,
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emailVerification: {
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sendVerificationEmail: async ({ user, url }: { user: { email: string }; url: string }) => {
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await sendEmail({
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to: user.email,
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subject: "Verify your GroomBook email",
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text: `Click the link to verify your email: ${url}`,
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html: `<p>Click the link to verify your email:</p><a href="${url}">${url}</a>`,
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});
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},
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},
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},
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plugins: [
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genericOAuth({
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config: [
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{
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providerId: providerConfig.providerId,
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clientId: providerConfig.clientId,
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clientSecret: providerConfig.clientSecret,
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discoveryUrl: discoveryUrlStr,
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...(Object.keys(oidcConfig).length > 0 ? oidcConfig : {}),
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scopes: providerConfig.scopes.split(" ").filter(Boolean),
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},
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],
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}),
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],
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socialProviders: {
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...(hasGoogle ? {
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google: {
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clientId: process.env.GOOGLE_CLIENT_ID!,
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clientSecret: process.env.GOOGLE_CLIENT_SECRET!,
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},
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} : {}),
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...(hasGitHub ? {
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github: {
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clientId: process.env.GITHUB_CLIENT_ID!,
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clientSecret: process.env.GITHUB_CLIENT_SECRET!,
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},
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} : {}),
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},
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session: {
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expiresIn: 60 * 60 * 24 * 7, // 7 days
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updateAge: 60 * 60 * 24, // 1 day
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cookieCache: {
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enabled: true,
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maxAge: 5 * 60, // 5 minutes
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},
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},
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trustedOrigins: [process.env.CORS_ORIGIN ?? "http://localhost:5173"],
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});
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})();
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await authInitPromise;
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}
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