From 9016dc87bd5cbec03244c8232d2231b182ef784b Mon Sep 17 00:00:00 2001 From: George Date: Wed, 16 Sep 2026 08:38:17 -0500 Subject: [PATCH] Initial commit: sap-test-legacy-webhook Receptor de prueba para sap-legacy-webhook-emulator sin depender de sap-webhook-api: recibe el POST con el CloudEvent y guarda cada notificacion en data/events/. Sin framework, HTTP o HTTPS autodetectado. Co-Authored-By: Claude Sonnet 5 --- .env.example | 2 + .gitignore | 4 + README.md | 78 ++++ package-lock.json | 943 ++++++++++++++++++++++++++++++++++++++++++++++ package.json | 25 ++ src/server.ts | 90 +++++ tsconfig.json | 16 + 7 files changed, 1158 insertions(+) create mode 100644 .env.example create mode 100644 .gitignore create mode 100644 README.md create mode 100644 package-lock.json create mode 100644 package.json create mode 100644 src/server.ts create mode 100644 tsconfig.json diff --git a/.env.example b/.env.example new file mode 100644 index 0000000..3cbe978 --- /dev/null +++ b/.env.example @@ -0,0 +1,2 @@ +# Puerto donde escucha el receptor de prueba +PORT=4100 diff --git a/.gitignore b/.gitignore new file mode 100644 index 0000000..bea2d60 --- /dev/null +++ b/.gitignore @@ -0,0 +1,4 @@ +node_modules +.env +data/events/*.json +certs/*.pem diff --git a/README.md b/README.md new file mode 100644 index 0000000..2bd9ed8 --- /dev/null +++ b/README.md @@ -0,0 +1,78 @@ +# sap-test-legacy-webhook + +Receptor de prueba para probar [`sap-legacy-webhook-emulator`](../sap-legacy-webhook-emulator) +sin necesitar una instancia real de `sap-webhook-api` — mismo comportamiento +núcleo (recibe el `POST` con el CloudEvent, guarda cada notificación como +`.json` en `data/events/`), pero sin framework y **sin autenticación por +ahora**. + +✅ Verificado de punta a punta contra un SAP Business One sobre HANA real: +capturó y guardó correctamente un evento real de `Items` +(`sap.b1.Items.Updated.v1`), tanto en HTTP como en HTTPS con certificado +autofirmado. + +## Quick start + +```bash +npm install +cp .env.example .env # PORT, default 4100 +npm start +``` + +Después, dar de alta una suscripción en `sap-legacy-webhook-emulator` +apuntando acá: + +```bash +cd ../sap-legacy-webhook-emulator +npx tsx scripts/manage-subscriptions.ts subscription:add http://127.0.0.1:4100/webhooks/sap +npx tsx scripts/manage-subscriptions.ts filter:add +npm run run-once +``` + +Los eventos recibidos quedan en `data/events/.json` (uno por +notificación, nombrado por el `id` del CloudEvent). + +## HTTP / HTTPS + +```bash +npm start # autodetecta: HTTPS si existen certs/*.pem, si no HTTP +npm run start:http # fuerza HTTP, ignora los certs aunque existan +npm run start:https # fuerza HTTPS — error claro si faltan los certs +``` + +HTTPS usa un certificado autofirmado. Sirve para probar el caso real (SAP +suele usar certificados autofirmados) y confirmar que el dispatcher los +acepta bien (ya ignora la validación de certificado — +`rejectUnauthorized: false`, ver +`sap-legacy-webhook-emulator/src/dispatcher/send-webhook.ts`). + +Regenerar el certificado: + +```bash +openssl req -x509 -newkey rsa:2048 -keyout certs/key.pem -out certs/cert.pem \ + -days 3650 -nodes -subj "/CN=127.0.0.1" \ + -addext "subjectAltName=DNS:localhost,IP:127.0.0.1" +``` + +Con HTTPS activo, la suscripción apunta a `https://127.0.0.1:4100/webhooks/sap` +en vez de `http://...`. Para cambiar la URL de una suscripción que ya +existe (sin recrearla) al pasar de HTTP a HTTPS o viceversa: + +```bash +cd ../sap-legacy-webhook-emulator +npx tsx scripts/manage-subscriptions.ts subscription:update-url https://127.0.0.1:4100/webhooks/sap +``` + +## Pendiente (a propósito, no es un olvido) + +Sin autenticación por ahora. Si más adelante hace falta probar HMAC, +agregar en `src/server.ts` la misma verificación que ya tiene +`sap-webhook-api/src/webhooks/webhooks.controller.ts` (`X-B1-Webhook-Signature`, +HMAC-SHA256 sobre el body crudo, activada solo si existe +`HMAC_SECRET_KEY`). + +## Stack + +Node/TypeScript puro (`node:http`, sin framework), ejecutado con `tsx` — +mismo criterio de simplicidad que el resto de los proyectos de prueba de +este workspace. diff --git a/package-lock.json b/package-lock.json new file mode 100644 index 0000000..c045448 --- /dev/null +++ b/package-lock.json @@ -0,0 +1,943 @@ +{ + "name": "sap-test-legacy-webhook", + "version": "1.0.0", + "lockfileVersion": 3, + "requires": true, + "packages": { + "": { + "name": "sap-test-legacy-webhook", + "version": "1.0.0", + "license": "UNLICENSED", + "dependencies": { + "dotenv": "^17.4.2" + }, + "devDependencies": { + "@types/node": "^26.2.0", + "tsx": "^4.23.12", + "typescript": "^7.0.2" + } + }, + "node_modules/@esbuild/aix-ppc64": 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ahora)", + "type": "module", + "main": "src/server.ts", + "scripts": { + "start": "tsx src/server.ts", + "start:http": "tsx src/server.ts --http", + "start:https": "tsx src/server.ts --https", + "dev": "tsx watch src/server.ts" + }, + "keywords": [], + "author": "", + "license": "UNLICENSED", + "private": true, + "dependencies": { + "dotenv": "^17.4.2" + }, + "devDependencies": { + "@types/node": "^26.2.0", + "tsx": "^4.23.12", + "typescript": "^7.0.2" + } +} diff --git a/src/server.ts b/src/server.ts new file mode 100644 index 0000000..72fb373 --- /dev/null +++ b/src/server.ts @@ -0,0 +1,90 @@ +import 'dotenv/config'; +import { createServer as createHttpServer, type IncomingMessage, type ServerResponse } from 'node:http'; +import { createServer as createHttpsServer } from 'node:https'; +import { existsSync, mkdirSync, readFileSync, writeFileSync } from 'node:fs'; +import { fileURLToPath } from 'node:url'; + +// Receptor de prueba para el CloudEvent que manda sap-legacy-webhook-emulator. +// Mismo comportamiento núcleo que sap-webhook-api (recibe el POST, guarda +// cada notificación como .json), pero sin framework y SIN +// autenticación por ahora — si más adelante hace falta, agregar acá la +// verificación de X-B1-Webhook-Signature (HMAC-SHA256 sobre el body +// crudo), igual que ya implementa sap-webhook-api/src/webhooks/webhooks.controller.ts. +// +// HTTPS opcional: `npm start` autodetecta (usa certs/key.pem+cert.pem si +// existen, si no sigue en HTTP). `npm run start:http`/`start:https` fuerzan +// un modo puntual — con --https, si faltan los certs, tira error claro en +// vez de arrancar en HTTP en silencio. + +const PORT = Number(process.env.PORT ?? 4100); +const EVENTS_DIR = fileURLToPath(new URL('../data/events/', import.meta.url)); +const CERTS_DIR = fileURLToPath(new URL('../certs/', import.meta.url)); +mkdirSync(EVENTS_DIR, { recursive: true }); + +interface CloudEventNotification { + id?: string; + [key: string]: unknown; +} + +function handleRequest(req: IncomingMessage, res: ServerResponse): void { + if (req.method === 'HEAD') { + res.writeHead(200); + res.end(); + return; + } + + if (req.method === 'GET') { + const token = req.headers['x-b1-webhook-token']; + res.writeHead(200, { 'Content-Type': 'application/json' }); + res.end(JSON.stringify(token ? { Challenge: token } : { status: 'ok' })); + return; + } + + if (req.method === 'POST') { + let body = ''; + req.on('data', (chunk) => (body += chunk)); + req.on('end', () => { + let notifications: CloudEventNotification[]; + try { + const parsed = JSON.parse(body || '[]'); + notifications = Array.isArray(parsed) ? parsed : [parsed]; + } catch { + res.writeHead(400, { 'Content-Type': 'application/json' }); + res.end(JSON.stringify({ error: 'JSON inválido' })); + return; + } + + for (const [index, notification] of notifications.entries()) { + const id = notification.id ?? `${Date.now()}-${index}`; + writeFileSync(`${EVENTS_DIR}${id}.json`, JSON.stringify(notification, null, 2)); + console.log(`[sap-test-legacy-webhook] Evento guardado: data/events/${id}.json`); + } + + res.writeHead(200, { 'Content-Type': 'application/json' }); + res.end(JSON.stringify({ received: true, count: notifications.length })); + }); + return; + } + + res.writeHead(404); + res.end(); +} + +const keyPath = `${CERTS_DIR}key.pem`; +const certPath = `${CERTS_DIR}cert.pem`; +const certsExist = existsSync(keyPath) && existsSync(certPath); + +const forceHttp = process.argv.includes('--http'); +const forceHttps = process.argv.includes('--https'); +if (forceHttps && !certsExist) { + throw new Error(`Faltan los certificados en ${CERTS_DIR} — generarlos primero (ver README, sección HTTPS).`); +} +const useHttps = forceHttps || (!forceHttp && certsExist); + +const server = useHttps + ? createHttpsServer({ key: readFileSync(keyPath), cert: readFileSync(certPath) }, handleRequest) + : createHttpServer(handleRequest); + +server.listen(PORT, () => { + console.log(`[sap-test-legacy-webhook] escuchando en ${useHttps ? 'https' : 'http'}://127.0.0.1:${PORT}`); +}); diff --git a/tsconfig.json b/tsconfig.json new file mode 100644 index 0000000..7c3385f --- /dev/null +++ b/tsconfig.json @@ -0,0 +1,16 @@ +{ + "compilerOptions": { + "target": "ES2022", + "module": "NodeNext", + "moduleResolution": "NodeNext", + "esModuleInterop": true, + "strict": true, + "skipLibCheck": true, + "resolveJsonModule": true, + "types": ["node"], + "allowImportingTsExtensions": true, + "noEmit": true + }, + "include": ["src/**/*.ts"], + "exclude": ["node_modules"] +}