u

.env.example

@@ -1,3 +1,6 @@
+# Demo catalog (skips MSSQL; requires `npm run demo:generate` first)
+DEMO_MODE=false
+
 # HTTPS POS server
 PORT=4443
 AUTH_TOKEN=df40ad2067954646abb0499548a52241
@@ -5,11 +8,6 @@ PAIRING_CODE=307018
 LOG_FILE=logs/requests.log
 ORDER_LOG_FILE=logs/orders.log
 
-# TLS certificate metadata returned during pairing
-CERTIFICATE_FINGERPRINT=BC2114CF407A42724BEEF417960F76DCBF9DE879
-CERTIFICATE_SERIAL_NUMBER=00BFC8BEACDB981B165210EF111CB9D3
-SERVER_FINGERPRINT=39-6D-BD-DE-F3-5C-5A-EA-C2-19-CF-EB-A7-A9-58-2F-20-3F-20-F7-3D-E6-CA-8E-AE-FD-28-30-37-A6-45-AE
-
 # Mandant
 MANDANT_ID=1
 MANDANT_NAME=eB-Standard

.gitignore

@@ -1,10 +1,12 @@
-node_modules/
-.env
-certs/
-logs/
-capturedDataReference
-decompiledReference
-scripts/s3-backup/data/
-scripts/s3-backup/tmp/
-scripts/s3-backup/certs/
-scripts/minimal-db/data/
+/node_modules/
+/.env
+/certs/
+/logs/
+/capturedDataReference
+/decompiledReference
+/scripts/s3-backup/data/
+/scripts/s3-backup/tmp/
+/scripts/s3-backup/certs/
+/scripts/minimal-db/data/
+# Generated demo catalog assets (keep src/demo/ source tracked)
+/demo/

API.md

@@ -37,6 +37,19 @@ See [productSync.md](productSync.md) for the cursor / row-version model in detai
 
 ---
 
+## Demo mode
+
+Node can serve a generated in-memory catalog without MSSQL.
+
+1. Generate artifacts once: `npm run demo:generate`  
+   Writes `demo/catalog.json` and `demo/images/<hash>.jpg` (≥1000 products, 3–4 category levels, variants, real photos).
+2. Set `DEMO_MODE=true` in `.env` (see `.env.example`).
+3. Start the server as usual (`npm start`). Pairing and all sync endpoints work; orders are logged and return synthetic `OK` results.
+
+Demo mode is **opt-in only** — a failed MSSQL connection does not enable it.
+
+---
+
 ## `GET /v1/client` — Pairing
 
 Discovers the server and completes pairing with a 6-digit code.

generate-cert.js

@@ -1,5 +1,6 @@
 import { execSync } from 'node:child_process';
 import fs from 'node:fs';
+import os from 'node:os';
 import path from 'node:path';
 import { fileURLToPath } from 'node:url';
 
@@ -12,10 +13,50 @@ const certPath = path.join(certsDir, 'cert.pem');
 
 fs.mkdirSync(certsDir, { recursive: true });
 
-// ECDSA P-256 keeps pairing QR codes much smaller than RSA-2048
-const subject = '/CN=localhost/O=JTL POS Sync/C=DE';
-const san = 'subjectAltName=DNS:localhost,IP:127.0.0.1,IP:0.0.0.0';
+function isIp(value) {
+  return /^(?:\d{1,3}\.){3}\d{1,3}$/.test(value) || value.includes(':');
+}
 
+function localIpv4s() {
+  const ips = [];
+  for (const entries of Object.values(os.networkInterfaces())) {
+    for (const entry of entries || []) {
+      if (entry.family !== 'IPv4' || entry.internal) continue;
+      // Skip link-local / docker / libvirt bridge noise by default — keep LAN + extras via args
+      if (entry.address.startsWith('169.254.')) continue;
+      if (entry.address.startsWith('172.17.')) continue;
+      if (entry.address.startsWith('192.168.122.')) continue;
+      ips.push(entry.address);
+    }
+  }
+  return ips;
+}
+
+const dnsNames = new Set(['localhost']);
+const ipAddrs = new Set(['127.0.0.1', '0.0.0.0']);
+
+for (const ip of localIpv4s()) {
+  ipAddrs.add(ip);
+}
+
+const extras = [
+  ...(process.env.CERT_SAN || '').split(/[,\s]+/).filter(Boolean),
+  ...process.argv.slice(2),
+];
+for (const value of extras) {
+  if (isIp(value)) ipAddrs.add(value);
+  else dnsNames.add(value);
+}
+
+const sanParts = [
+  ...[...dnsNames].map((name) => `DNS:${name}`),
+  ...[...ipAddrs].map((ip) => `IP:${ip}`),
+];
+const san = `subjectAltName=${sanParts.join(',')}`;
+const cn = [...dnsNames][0] || 'localhost';
+const subject = `/CN=${cn}/O=JTL POS Sync/C=DE`;
+
+// ECDSA P-256 keeps pairing QR codes much smaller than RSA-2048
 execSync(
   `openssl req -x509 -newkey ec -pkeyopt ec_paramgen_curve:P-256 -nodes -keyout "${keyPath}" -out "${certPath}" -days 3650 -subj "${subject}" -addext "${san}"`,
   { stdio: 'inherit' }
@@ -34,6 +75,6 @@ const serial = execSync(`openssl x509 -in "${certPath}" -noout -serial`, {
 
 logger.success(`Wrote ${keyPath}`);
 logger.success(`Wrote ${certPath}`);
-logger.info(`CERTIFICATE_FINGERPRINT=${sha1.replace(/:/g, '')}`);
-logger.info(`CERTIFICATE_SERIAL_NUMBER=${serial}`);
-logger.info(`SERVER_FINGERPRINT=${sha1.replace(/:/g, '-')}`);
+logger.info(`SAN: ${sanParts.join(', ')}`);
+logger.info(`Fingerprint: ${sha1.replace(/:/g, '')}`);
+logger.info(`Serial: ${serial}`);

jtlsrv-cpp/README.md

@@ -79,17 +79,25 @@ The server starts without MSSQL if `MSSQL_USER` is unset or the connection fails
 
 ## TLS certificates
 
-Place a certificate and key at `certs/cert.pem` and `certs/key.pem` (relative to the working directory when you run the binary).
+From the repo root (preferred — picks up LAN IPs automatically):
+
+```bash
+npm run cert
+# optional extras:
+npm run cert -- 192.168.188.22 sync.quixpos.com
+```
+
+Or manually:
 
 ```bash
 mkdir -p certs
-openssl req -x509 -newkey rsa:2048 -nodes \
+openssl req -x509 -newkey ec -pkeyopt ec_paramgen_curve:P-256 -nodes \
   -keyout certs/key.pem -out certs/cert.pem -days 3650 \
   -subj '/CN=localhost/O=JTL POS Sync/C=DE' \
-  -addext 'subjectAltName=DNS:localhost,IP:127.0.0.1,IP:0.0.0.0'
+  -addext 'subjectAltName=DNS:localhost,DNS:sync.quixpos.com,IP:127.0.0.1,IP:0.0.0.0,IP:192.168.188.22'
 ```
 
-On startup the server prints the pairing code and whether MSSQL connected.
+Place `certs/cert.pem` and `certs/key.pem` relative to the working directory when you run the binary. The browser hostname check requires the address you open (`192.168.x.x` or a DNS name) to appear in the certificate SAN — trusting a CA alone is not enough.
 
 ## API endpoints
 

jtlsrv-cpp/logs/orders.log

@@ -0,0 +1,28 @@
+2026-07-14T20:11:01 #1 externalId=79 {"ShippingDate":"","amountBack":"0","amountGiven":"0.08","billingAddress":{"addressAddition":"","birthday":"","city":"","company":"","countryIso":"DE","customerGroupId":"","debtorNumber":"","discount":"0.0","email":"","extraAddressLine":"","fax":"","firstName":"","lastName":"Laufkunde","mobile":"","phone":"","salutation":"","state":"","street":"","title":"","toTheAttention":"","zipCode":""},"creationDate":"2026-07-13 07:40:35","currencyIso":"EUR","customerNumber":"420strainz","descriptionType":"","externalId":"79","externalOrderNumber":"R00081","languageIso":"de","note":"","orderId":"","orderItems":[{"discountPercent":"0","externalId":"126","isReturn":"0","name":"BioBizz Lightmix 50 Liter","note":"","orderItemId":"","priceGross":"0.08","priceNet":"0.08","purchasePriceNet":"0.0","quantity":"1","sku":"4","totalPriceGross":"0.08","totalPriceNet":"0.08","type":"1","unit":"","vat":"0.00"}],"paymentMethodName":"BAR","payments":[{"amount":"0.08","paymentId":"","paymentMethodName":"BAR"}],"rapRounding":"0","settings":{"deliver":"1","importSetting":"0","invoiceSetting":"0"},"shippingAddress":{"city":"","company":"","countryIso":"DE","deliveryInstruction":"","email":"","extraAddressLine":"","fax":"","firstName":"","lastName":"Laufkunde","mobile":"","phone":"","salutation":"","state":"","street":"","title":"","zipCode":""},"shippingInfo":"","shippingName":"","taxIdNumber":"","totalGross":"0.08","totalNet":"0.08","type":"0","username":"admin"}
+2026-07-14T20:14:29 #1 externalId=80 {"ShippingDate":"","amountBack":"0","amountGiven":"11","billingAddress":{"addressAddition":"","birthday":"","city":"","company":"","countryIso":"DE","customerGroupId":"","debtorNumber":"","discount":"0.0","email":"","extraAddressLine":"","fax":"","firstName":"","lastName":"Laufkunde","mobile":"","phone":"","salutation":"","state":"","street":"","title":"","toTheAttention":"","zipCode":""},"creationDate":"2026-07-14 18:12:47","currencyIso":"EUR","customerNumber":"420strainz","descriptionType":"","externalId":"80","externalOrderNumber":"R00082","languageIso":"de","note":"","orderId":"","orderItems":[{"discountPercent":"0","externalId":"127","isReturn":"0","name":"Peach Cotton Candy 1g","note":"","orderItemId":"","priceGross":"11","priceNet":"9.243697478991596","purchasePriceNet":"0.0","quantity":"1","sku":"42001111-1","totalPriceGross":"11","totalPriceNet":"9.24","type":"1","unit":"","vat":"19.00"}],"paymentMethodName":"BAR","payments":[{"amount":"11","paymentId":"","paymentMethodName":"BAR"}],"rapRounding":"0","settings":{"deliver":"1","importSetting":"0","invoiceSetting":"0"},"shippingAddress":{"city":"","company":"","countryIso":"DE","deliveryInstruction":"","email":"","extraAddressLine":"","fax":"","firstName":"","lastName":"Laufkunde","mobile":"","phone":"","salutation":"","state":"","street":"","title":"","zipCode":""},"shippingInfo":"","shippingName":"","taxIdNumber":"","totalGross":"11","totalNet":"9.24","type":"0","username":"admin"}
+2026-07-14T20:15:38 #1 externalId=99999 {"currencyIso":"EUR","externalId":"99999","orderItems":[],"paymentMethodName":"Bar"}
+2026-07-14T20:16:01 #1 externalId=81 {"ShippingDate":"","amountBack":"0","amountGiven":"45","billingAddress":{"addressAddition":"","birthday":"","city":"","company":"","countryIso":"DE","customerGroupId":"","debtorNumber":"","discount":"0.0","email":"","extraAddressLine":"","fax":"","firstName":"","lastName":"Laufkunde","mobile":"","phone":"","salutation":"","state":"","street":"","title":"","toTheAttention":"","zipCode":""},"creationDate":"2026-07-14 18:14:12","currencyIso":"EUR","customerNumber":"420strainz","descriptionType":"","externalId":"81","externalOrderNumber":"R00083","languageIso":"de","note":"","orderId":"","orderItems":[{"discountPercent":"0","externalId":"128","isReturn":"0","name":"Vending Machine 5g","note":"","orderItemId":"","priceGross":"45","priceNet":"37.81512605042017","purchasePriceNet":"0.0","quantity":"1","sku":"42001099-9","totalPriceGross":"45","totalPriceNet":"37.82","type":"1","unit":"","vat":"19.00"}],"paymentMethodName":"BAR","payments":[{"amount":"45","paymentId":"","paymentMethodName":"BAR"}],"rapRounding":"0","settings":{"deliver":"1","importSetting":"0","invoiceSetting":"0"},"shippingAddress":{"city":"","company":"","countryIso":"DE","deliveryInstruction":"","email":"","extraAddressLine":"","fax":"","firstName":"","lastName":"Laufkunde","mobile":"","phone":"","salutation":"","state":"","street":"","title":"","zipCode":""},"shippingInfo":"","shippingName":"","taxIdNumber":"","totalGross":"45","totalNet":"37.82","type":"0","username":"admin"}
+2026-07-14T20:16:45 #1 externalId=81 {"ShippingDate":"","amountBack":"0","amountGiven":"45","billingAddress":{"addressAddition":"","birthday":"","city":"","company":"","countryIso":"DE","customerGroupId":"","debtorNumber":"","discount":"0.0","email":"","extraAddressLine":"","fax":"","firstName":"","lastName":"Laufkunde","mobile":"","phone":"","salutation":"","state":"","street":"","title":"","toTheAttention":"","zipCode":""},"creationDate":"2026-07-14 18:14:12","currencyIso":"EUR","customerNumber":"420strainz","descriptionType":"","externalId":"81","externalOrderNumber":"R00083","languageIso":"de","note":"","orderId":"","orderItems":[{"discountPercent":"0","externalId":"128","isReturn":"0","name":"Vending Machine 5g","note":"","orderItemId":"","priceGross":"45","priceNet":"37.81512605042017","purchasePriceNet":"0.0","quantity":"1","sku":"42001099-9","totalPriceGross":"45","totalPriceNet":"37.82","type":"1","unit":"","vat":"19.00"}],"paymentMethodName":"BAR","payments":[{"amount":"45","paymentId":"","paymentMethodName":"BAR"}],"rapRounding":"0","settings":{"deliver":"1","importSetting":"0","invoiceSetting":"0"},"shippingAddress":{"city":"","company":"","countryIso":"DE","deliveryInstruction":"","email":"","extraAddressLine":"","fax":"","firstName":"","lastName":"Laufkunde","mobile":"","phone":"","salutation":"","state":"","street":"","title":"","zipCode":""},"shippingInfo":"","shippingName":"","taxIdNumber":"","totalGross":"45","totalNet":"37.82","type":"0","username":"admin"}
+2026-07-14T20:17:02 #1 externalId=81 {"ShippingDate":"","amountBack":"0","amountGiven":"45","billingAddress":{"addressAddition":"","birthday":"","city":"","company":"","countryIso":"DE","customerGroupId":"","debtorNumber":"","discount":"0.0","email":"","extraAddressLine":"","fax":"","firstName":"","lastName":"Laufkunde","mobile":"","phone":"","salutation":"","state":"","street":"","title":"","toTheAttention":"","zipCode":""},"creationDate":"2026-07-14 18:14:12","currencyIso":"EUR","customerNumber":"420strainz","descriptionType":"","externalId":"81","externalOrderNumber":"R00083","languageIso":"de","note":"","orderId":"","orderItems":[{"discountPercent":"0","externalId":"128","isReturn":"0","name":"Vending Machine 5g","note":"","orderItemId":"","priceGross":"45","priceNet":"37.81512605042017","purchasePriceNet":"0.0","quantity":"1","sku":"42001099-9","totalPriceGross":"45","totalPriceNet":"37.82","type":"1","unit":"","vat":"19.00"}],"paymentMethodName":"BAR","payments":[{"amount":"45","paymentId":"","paymentMethodName":"BAR"}],"rapRounding":"0","settings":{"deliver":"1","importSetting":"0","invoiceSetting":"0"},"shippingAddress":{"city":"","company":"","countryIso":"DE","deliveryInstruction":"","email":"","extraAddressLine":"","fax":"","firstName":"","lastName":"Laufkunde","mobile":"","phone":"","salutation":"","state":"","street":"","title":"","zipCode":""},"shippingInfo":"","shippingName":"","taxIdNumber":"","totalGross":"45","totalNet":"37.82","type":"0","username":"admin"}
+2026-07-14T20:18:27 #1 externalId=81 {"ShippingDate":"","amountBack":"0","amountGiven":"45","billingAddress":{"addressAddition":"","birthday":"","city":"","company":"","countryIso":"DE","customerGroupId":"","debtorNumber":"","discount":"0.0","email":"","extraAddressLine":"","fax":"","firstName":"","lastName":"Laufkunde","mobile":"","phone":"","salutation":"","state":"","street":"","title":"","toTheAttention":"","zipCode":""},"creationDate":"2026-07-14 18:14:12","currencyIso":"EUR","customerNumber":"420strainz","descriptionType":"","externalId":"81","externalOrderNumber":"R00083","languageIso":"de","note":"","orderId":"","orderItems":[{"discountPercent":"0","externalId":"128","isReturn":"0","name":"Vending Machine 5g","note":"","orderItemId":"","priceGross":"45","priceNet":"37.81512605042017","purchasePriceNet":"0.0","quantity":"1","sku":"42001099-9","totalPriceGross":"45","totalPriceNet":"37.82","type":"1","unit":"","vat":"19.00"}],"paymentMethodName":"BAR","payments":[{"amount":"45","paymentId":"","paymentMethodName":"BAR"}],"rapRounding":"0","settings":{"deliver":"1","importSetting":"0","invoiceSetting":"0"},"shippingAddress":{"city":"","company":"","countryIso":"DE","deliveryInstruction":"","email":"","extraAddressLine":"","fax":"","firstName":"","lastName":"Laufkunde","mobile":"","phone":"","salutation":"","state":"","street":"","title":"","zipCode":""},"shippingInfo":"","shippingName":"","taxIdNumber":"","totalGross":"45","totalNet":"37.82","type":"0","username":"admin"}
+2026-07-14T20:19:12 #1 externalId=83 {"ShippingDate":"","amountBack":"0","amountGiven":"45","billingAddress":{"addressAddition":"","birthday":"","city":"","company":"","countryIso":"DE","customerGroupId":"","debtorNumber":"","discount":"0.0","email":"","extraAddressLine":"","fax":"","firstName":"","lastName":"Laufkunde","mobile":"","phone":"","salutation":"","state":"","street":"","title":"","toTheAttention":"","zipCode":""},"creationDate":"2026-07-14 18:14:12","currencyIso":"EUR","customerNumber":"420strainz","descriptionType":"","externalId":"83","externalOrderNumber":"R00085","languageIso":"de","note":"","orderId":"","orderItems":[{"discountPercent":"0","externalId":"130","isReturn":"0","name":"Vending Machine 5g","note":"","orderItemId":"","priceGross":"45","priceNet":"37.81512605042017","purchasePriceNet":"0.0","quantity":"1","sku":"42001099-9","totalPriceGross":"45","totalPriceNet":"37.82","type":"1","unit":"","vat":"19.00"}],"paymentMethodName":"BAR","payments":[{"amount":"45","paymentId":"","paymentMethodName":"BAR"}],"rapRounding":"0","settings":{"deliver":"1","importSetting":"0","invoiceSetting":"0"},"shippingAddress":{"city":"","company":"","countryIso":"DE","deliveryInstruction":"","email":"","extraAddressLine":"","fax":"","firstName":"","lastName":"Laufkunde","mobile":"","phone":"","salutation":"","state":"","street":"","title":"","zipCode":""},"shippingInfo":"","shippingName":"","taxIdNumber":"","totalGross":"45","totalNet":"37.82","type":"0","username":"admin"}
+2026-07-14T20:22:19 #1 externalId=82 {"ShippingDate":"","amountBack":"0","amountGiven":"25","billingAddress":{"addressAddition":"","birthday":"","city":"","company":"","countryIso":"DE","customerGroupId":"","debtorNumber":"","discount":"0.0","email":"","extraAddressLine":"","fax":"","firstName":"","lastName":"Laufkunde","mobile":"","phone":"","salutation":"","state":"","street":"","title":"","toTheAttention":"","zipCode":""},"creationDate":"2026-07-14 18:16:01","currencyIso":"EUR","customerNumber":"420strainz","descriptionType":"","externalId":"82","externalOrderNumber":"R00084","languageIso":"de","note":"","orderId":"","orderItems":[{"discountPercent":"0","externalId":"129","isReturn":"0","name":"King Palm Mars Grinder The Gift","note":"","orderItemId":"","priceGross":"25","priceNet":"21.008403361344538","purchasePriceNet":"0.0","quantity":"1","sku":"42001021-5","totalPriceGross":"25","totalPriceNet":"21.01","type":"1","unit":"","vat":"19.00"}],"paymentMethodName":"BAR","payments":[{"amount":"25","paymentId":"","paymentMethodName":"BAR"}],"rapRounding":"0","settings":{"deliver":"1","importSetting":"0","invoiceSetting":"0"},"shippingAddress":{"city":"","company":"","countryIso":"DE","deliveryInstruction":"","email":"","extraAddressLine":"","fax":"","firstName":"","lastName":"Laufkunde","mobile":"","phone":"","salutation":"","state":"","street":"","title":"","zipCode":""},"shippingInfo":"","shippingName":"","taxIdNumber":"","totalGross":"25","totalNet":"21.01","type":"0","username":"admin"}
+2026-07-14T20:23:56 #1 externalId=84 {"billingAddress":{"countryIso":"DE","customerGroupId":"","debtorNumber":"","discount":"0.0","lastName":"Laufkunde"},"creationDate":"2026-07-14 18:14:12","currencyIso":"EUR","customerNumber":"420strainz","externalId":"84","externalOrderNumber":"R00086","orderItems":[{"discountPercent":"0","externalId":"131","name":"Vending Machine 5g","priceGross":"45","priceNet":"37.82","quantity":"1","sku":"42001099-9","vat":"19.00"}],"paymentMethodName":"BAR","payments":[{"amount":"45","paymentMethodName":"BAR"}],"settings":{"deliver":"1"},"shippingAddress":{"countryIso":"DE","lastName":"Laufkunde"},"totalGross":"45","totalNet":"37.82"}
+2026-07-14T20:24:45 #1 externalId=83 {"ShippingDate":"","amountBack":"0","amountGiven":"15","billingAddress":{"addressAddition":"","birthday":"","city":"","company":"","countryIso":"DE","customerGroupId":"","debtorNumber":"","discount":"0.0","email":"","extraAddressLine":"","fax":"","firstName":"","lastName":"Laufkunde","mobile":"","phone":"","salutation":"","state":"","street":"","title":"","toTheAttention":"","zipCode":""},"creationDate":"2026-07-14 18:24:41","currencyIso":"EUR","customerNumber":"420strainz","descriptionType":"","externalId":"83","externalOrderNumber":"R00085","languageIso":"de","note":"","orderId":"","orderItems":[{"discountPercent":"0","externalId":"130","isReturn":"0","name":"Cannasseur Lupe","note":"","orderItemId":"","priceGross":"15","priceNet":"12.605042016806722","purchasePriceNet":"0.0","quantity":"1","sku":"42001165","totalPriceGross":"15","totalPriceNet":"12.61","type":"1","unit":"","vat":"19.00"}],"paymentMethodName":"BAR","payments":[{"amount":"15","paymentId":"","paymentMethodName":"BAR"}],"rapRounding":"0","settings":{"deliver":"1","importSetting":"0","invoiceSetting":"0"},"shippingAddress":{"city":"","company":"","countryIso":"DE","deliveryInstruction":"","email":"","extraAddressLine":"","fax":"","firstName":"","lastName":"Laufkunde","mobile":"","phone":"","salutation":"","state":"","street":"","title":"","zipCode":""},"shippingInfo":"","shippingName":"","taxIdNumber":"","totalGross":"15","totalNet":"12.61","type":"0","username":"admin"}
+2026-07-14T20:25:17 #2 externalId=84 {"ShippingDate":"","amountBack":"0","amountGiven":"25","billingAddress":{"addressAddition":"","birthday":"","city":"","company":"","countryIso":"DE","customerGroupId":"","debtorNumber":"","discount":"0.0","email":"","extraAddressLine":"","fax":"","firstName":"","lastName":"Laufkunde","mobile":"","phone":"","salutation":"","state":"","street":"","title":"","toTheAttention":"","zipCode":""},"creationDate":"2026-07-14 18:25:13","currencyIso":"EUR","customerNumber":"420strainz","descriptionType":"","externalId":"84","externalOrderNumber":"R00086","languageIso":"de","note":"","orderId":"","orderItems":[{"discountPercent":"0","externalId":"131","isReturn":"0","name":"Cannasseur Cooling Case","note":"","orderItemId":"","priceGross":"25","priceNet":"21.008403361344538","purchasePriceNet":"0.0","quantity":"1","sku":"42001166","totalPriceGross":"25","totalPriceNet":"21.01","type":"1","unit":"","vat":"19.00"}],"paymentMethodName":"BAR","payments":[{"amount":"25","paymentId":"","paymentMethodName":"BAR"}],"rapRounding":"0","settings":{"deliver":"1","importSetting":"0","invoiceSetting":"0"},"shippingAddress":{"city":"","company":"","countryIso":"DE","deliveryInstruction":"","email":"","extraAddressLine":"","fax":"","firstName":"","lastName":"Laufkunde","mobile":"","phone":"","salutation":"","state":"","street":"","title":"","zipCode":""},"shippingInfo":"","shippingName":"","taxIdNumber":"","totalGross":"25","totalNet":"21.01","type":"0","username":"admin"}
+2026-07-14T20:39:28 #1 externalId=83 {"currencyIso":"EUR","customerNumber":"420strainz","externalId":"83","orderItems":[],"paymentMethodName":"BAR"}
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jtlsrv-cpp/src/http.cpp

@@ -70,6 +70,12 @@ int64_t HttpRequest::get_query_int64(const std::string& key, int64_t def) const
 // HttpResponse
 // ---------------------------------------------------------------------------
 
+static const char* CORS_HEADERS =
+    "Access-Control-Allow-Origin: *\r\n"
+    "Access-Control-Allow-Methods: GET, POST, OPTIONS\r\n"
+    "Access-Control-Allow-Headers: Content-Type, Authorization\r\n"
+    "Access-Control-Max-Age: 86400\r\n";
+
 void HttpResponse::send_json(int code, const json& body) {
     if (headers_sent) return;
     status_code = code;
@@ -80,6 +86,7 @@ void HttpResponse::send_json(int code, const json& body) {
         "Content-Type: application/json; charset=utf-8\r\n"
         "Content-Length: " + std::to_string(body_str.size()) + "\r\n"
         "Connection: keep-alive\r\n"
+        + std::string(CORS_HEADERS) +
         "\r\n"
         + body_str;
 
@@ -95,6 +102,7 @@ void HttpResponse::send_binary(int code, const std::vector<uint8_t>& data, const
         "Content-Type: " + content_type + "\r\n"
         "Content-Length: " + std::to_string(data.size()) + "\r\n"
         "Connection: keep-alive\r\n"
+        + std::string(CORS_HEADERS) +
         "\r\n";
 
     session_write_binary(session, header, data);
@@ -108,6 +116,7 @@ void HttpResponse::send_empty(int code) {
     std::string resp = "HTTP/1.1 " + std::to_string(code) + " " + reason_phrase(code) + "\r\n"
         "Content-Length: 0\r\n"
         "Connection: keep-alive\r\n"
+        + std::string(CORS_HEADERS) +
         "\r\n";
 
     session_write(session, resp);

jtlsrv-cpp/src/main.cpp

@@ -3,8 +3,13 @@
 #include <cstdio>
 #include <string>
 #include <chrono>
+#include <cctype>
 
 #include <uv.h>
+#include <openssl/pem.h>
+#include <openssl/x509.h>
+#include <openssl/evp.h>
+#include <openssl/bn.h>
 
 #include "config.hpp"
 #include "log.hpp"
@@ -29,12 +34,60 @@ static Router      router;
 static PairingStore pairing_store;
 static RequestLog  request_log;
 
-static json build_config() {
+static bool read_cert_metadata(const char* cert_path,
+                               std::string& fingerprint,
+                               std::string& serial,
+                               std::string& server_fingerprint) {
+    FILE* fp = std::fopen(cert_path, "r");
+    if (!fp) return false;
+    X509* cert = PEM_read_X509(fp, nullptr, nullptr, nullptr);
+    std::fclose(fp);
+    if (!cert) return false;
+
+    unsigned char md[EVP_MAX_MD_SIZE];
+    unsigned int md_len = 0;
+    if (X509_digest(cert, EVP_sha1(), md, &md_len) != 1) {
+        X509_free(cert);
+        return false;
+    }
+
+    static const char* hex = "0123456789ABCDEF";
+    fingerprint.clear();
+    fingerprint.reserve(md_len * 2);
+    server_fingerprint.clear();
+    server_fingerprint.reserve(md_len * 3 - 1);
+    for (unsigned int i = 0; i < md_len; ++i) {
+        fingerprint.push_back(hex[(md[i] >> 4) & 0xF]);
+        fingerprint.push_back(hex[md[i] & 0xF]);
+        if (i) server_fingerprint.push_back('-');
+        server_fingerprint.push_back(hex[(md[i] >> 4) & 0xF]);
+        server_fingerprint.push_back(hex[md[i] & 0xF]);
+    }
+
+    const ASN1_INTEGER* asn1_serial = X509_get0_serialNumber(cert);
+    BIGNUM* bn = ASN1_INTEGER_to_BN(asn1_serial, nullptr);
+    char* hex_serial = bn ? BN_bn2hex(bn) : nullptr;
+    bool ok = hex_serial != nullptr;
+    if (ok) {
+        serial = hex_serial;
+        for (char& c : serial) c = static_cast<char>(std::toupper(static_cast<unsigned char>(c)));
+        OPENSSL_free(hex_serial);
+    }
+    BN_free(bn);
+    X509_free(cert);
+    return ok;
+}
+
+static json build_config(const char* cert_path) {
+    std::string fingerprint, serial, server_fingerprint;
+    if (!read_cert_metadata(cert_path, fingerprint, serial, server_fingerprint)) {
+        logc::error("failed to read certificate metadata from %s", cert_path);
+    }
     return {
         {"authToken", config::get("AUTH_TOKEN", "df40ad2067954646abb0499548a52241")},
-        {"certificateFingerprint", config::get("CERTIFICATE_FINGERPRINT", "BC2114CF407A42724BEEF417960F76DCBF9DE879")},
-        {"certificateSerialNumber", config::get("CERTIFICATE_SERIAL_NUMBER", "00BFC8BEACDB981B165210EF111CB9D3")},
-        {"serverFingerprint", config::get("SERVER_FINGERPRINT", "39-6D-BD-DE-F3-5C-5A-EA-C2-19-CF-EB-A7-A9-58-2F-20-3F-20-F7-3D-E6-CA-8E-AE-FD-28-30-37-A6-45-AE")},
+        {"certificateFingerprint", fingerprint},
+        {"certificateSerialNumber", serial},
+        {"serverFingerprint", server_fingerprint},
         {"mandantId", config::get("MANDANT_ID", "1")},
         {"mandantName", config::get("MANDANT_NAME", "eB-Standard")},
         {"mandantDatabase", config::get("MANDANT_DATABASE", "eazybusiness")},
@@ -125,7 +178,7 @@ int main(int /*argc*/, char* argv[]) {
 
     loop = uv_default_loop();
 
-    server_config = build_config();
+    server_config = build_config(cert_path.c_str());
 
     // Register routes
     router.add_route("GET", "/v1/client", handle_client);

jtlsrv-cpp/src/router.cpp

@@ -18,6 +18,11 @@ void Router::dispatch(tls_session* sess, PairingStore& pairing, const json& conf
         full_url += "?" + req.query_string;
     }
 
+    if (req.method == "OPTIONS") {
+        resp.send_empty(204);
+        return;
+    }
+
     std::string route_key = req.method + " " + req.path;
     auto it = routes_.find(route_key);
     if (it != routes_.end()) {

package.json

@@ -11,8 +11,11 @@
     "qr": "node scripts/create-pairing-qr.mjs",
     "backup:s3": "node scripts/s3-backup/backup.mjs",
     "backup:s3:quick": "node scripts/s3-backup/backup.mjs --skip-trust",
+    "restore:s3": "node scripts/s3-backup/restore.mjs",
+    "restore:s3:quick": "node scripts/s3-backup/restore.mjs --skip-trust",
     "db:minimal": "node scripts/create-minimal-db.mjs",
     "db:minimal:extract": "node scripts/create-minimal-db.mjs extract",
+    "demo:generate": "node scripts/generate-demo-catalog.mjs",
     "start": "node --watch server.js",
     "test:client": "node test-client.js"
   },

scripts/generate-demo-catalog.mjs

@@ -0,0 +1,781 @@
+#!/usr/bin/env node
+/**
+ * Generates demo/catalog.json + demo/images/*.jpg for DEMO_MODE.
+ * Downloads real photos from LoremFlickr matched to category / product keywords
+ * (Picsum fallback). Variant siblings share a base photo and get a light tint.
+ *
+ * Usage: node scripts/generate-demo-catalog.mjs
+ */
+import crypto from 'node:crypto';
+import fs from 'node:fs';
+import path from 'node:path';
+import { fileURLToPath } from 'node:url';
+import sharp from 'sharp';
+
+const __dirname = path.dirname(fileURLToPath(import.meta.url));
+const ROOT = path.join(__dirname, '..');
+const DEMO_DIR = path.join(ROOT, 'demo');
+const IMAGES_DIR = path.join(DEMO_DIR, 'images');
+
+const IMAGE_SIZE = 480;
+const JPEG_QUALITY = 65;
+const DOWNLOAD_CONCURRENCY = 8;
+const TARGET_PRODUCTS = 1100;
+
+const COLORS = ['Red', 'Blue', 'Green', 'Black', 'White', 'Grey', 'Navy', 'Beige'];
+const MATERIALS = ['Oak', 'Pine', 'Steel', 'Aluminium', 'Cotton', 'Leather', 'Plastic', 'Bamboo'];
+const PACKAGE_SIZES = ['250g', '500g', '1kg', '2kg', '5kg', '10pcs', '20pcs', '50pcs'];
+
+const TINTS = {
+  Red: { r: 220, g: 60, b: 60 },
+  Blue: { r: 50, g: 90, b: 200 },
+  Green: { r: 40, g: 150, b: 70 },
+  Black: { r: 30, g: 30, b: 30 },
+  White: { r: 230, g: 230, b: 230 },
+  Grey: { r: 120, g: 120, b: 120 },
+  Navy: { r: 20, g: 40, b: 90 },
+  Beige: { r: 210, g: 190, b: 150 },
+};
+
+/** Flickr-friendly tags for catalog subjects (category / product type names). */
+const KEYWORD_ALIASES = {
+  'Home & Living': 'livingroom,interior,home',
+  Furniture: 'furniture,home',
+  Seating: 'seating,chair',
+  Armchairs: 'armchair,chair',
+  Sofas: 'sofa,couch',
+  Stools: 'stool,chair',
+  Tables: 'table,furniture',
+  'Coffee Tables': 'coffee,table',
+  'Side Tables': 'side,table',
+  'Dining Tables': 'dining,table',
+  Storage: 'storage,cabinet',
+  Shelves: 'shelf,bookshelf',
+  Cabinets: 'cabinet,cupboard',
+  Decor: 'decor,interior',
+  Lighting: 'lamp,lighting',
+  'Floor Lamps': 'floor,lamp',
+  'Table Lamps': 'table,lamp',
+  Pendants: 'pendant,lamp',
+  Textiles: 'textile,fabric',
+  Cushions: 'cushion,pillow',
+  Throws: 'blanket,throw',
+  Rugs: 'rug,carpet',
+  WallArt: 'wallart,painting',
+  Prints: 'poster,print',
+  Mirrors: 'mirror,reflection',
+  Office: 'office,workspace',
+  Desks: 'desk,office',
+  Standing: 'standing,desk',
+  'Electric Desks': 'standing,desk',
+  'Manual Desks': 'desk,office',
+  Sitting: 'desk,office',
+  'Compact Desks': 'desk,workspace',
+  'Executive Desks': 'desk,office',
+  Chairs: 'office,chair',
+  Ergonomic: 'ergonomic,chair',
+  'Mesh Chairs': 'office,chair',
+  'Leather Chairs': 'leather,chair',
+  Guest: 'guest,chair',
+  'Stacking Chairs': 'stacking,chair',
+  'Visitor Chairs': 'office,chair',
+  Supplies: 'office,supplies',
+  Paper: 'paper,stationery',
+  'A4 Paper': 'paper,stack',
+  Notebooks: 'notebook,journal',
+  Writing: 'pen,writing',
+  Pens: 'pen,fountain',
+  Markers: 'marker,pen',
+  Organizers: 'desk,organizer',
+  Trays: 'tray,desk',
+  'File Boxes': 'archive,box',
+  Outdoor: 'outdoor,garden',
+  Garden: 'garden,outdoors',
+  Tools: 'garden,tools',
+  'Hand Tools': 'hand,tools',
+  'Power Tools': 'power,tools',
+  Planters: 'planter,pot',
+  'Ceramic Pots': 'ceramic,pot',
+  'Hanging Baskets': 'hanging,basket',
+  Benches: 'bench,park',
+  Loungers: 'lounger,sunbed',
+  Sports: 'sports,fitness',
+  Fitness: 'fitness,gym',
+  Weights: 'dumbbell,weights',
+  Mats: 'yoga,mat',
+  Bands: 'resistance,band',
+  Recreation: 'recreation,sport',
+  Balls: 'ball,sport',
+  Rackets: 'tennis,racket',
+  Kitchen: 'kitchen,cooking',
+  Cookware: 'cookware,kitchen',
+  Pots: 'cooking,pot',
+  'Sauce Pans': 'saucepan,pot',
+  'Stock Pots': 'stockpot,pot',
+  Pans: 'frying,pan',
+  'Frying Pans': 'frying,pan',
+  Woks: 'wok,pan',
+  Bakeware: 'bakeware,baking',
+  'Baking Trays': 'baking,tray',
+  'Cake Tins': 'cake,tin',
+  Tableware: 'tableware,dishes',
+  Plates: 'plate,dish',
+  'Dinner Plates': 'dinner,plate',
+  'Side Plates': 'plate,dish',
+  Drinkware: 'drinkware,cup',
+  Mugs: 'mug,coffee',
+  Glasses: 'glass,drink',
+  Cutlery: 'cutlery,silverware',
+  'Fork Sets': 'fork,cutlery',
+  'Knife Sets': 'knife,cutlery',
+  Food: 'food,grocery',
+  DryGoods: 'grocery,food',
+  Pasta: 'pasta,noodles',
+  Rice: 'rice,grain',
+  Beans: 'beans,legume',
+  Beverages: 'beverage,drink',
+  Coffee: 'coffee,beans',
+  Tea: 'tea,cup',
+  Juice: 'juice,orange',
+  Snacks: 'snack,food',
+  Nuts: 'nuts,almond',
+  Bars: 'granola,bar',
+};
+
+const PRODUCT_STEMS = [
+  'Classic',
+  'Premium',
+  'Essential',
+  'Urban',
+  'Nordic',
+  'Studio',
+  'Heritage',
+  'Compact',
+  'Pro',
+  'Lite',
+  'Max',
+  'Basic',
+];
+
+const STEM_RE = new RegExp(`^(${PRODUCT_STEMS.join('|')})\\s+`, 'i');
+
+
+/** Department → groups → subgroups → leaves (3–4 levels). */
+const TREE = {
+  'Home & Living': {
+    Furniture: {
+      Seating: ['Armchairs', 'Sofas', 'Stools'],
+      Tables: ['Coffee Tables', 'Side Tables', 'Dining Tables'],
+      Storage: ['Shelves', 'Cabinets'],
+    },
+    Decor: {
+      Lighting: ['Floor Lamps', 'Table Lamps', 'Pendants'],
+      Textiles: ['Cushions', 'Throws', 'Rugs'],
+      WallArt: ['Prints', 'Mirrors'],
+    },
+  },
+  Office: {
+    Desks: {
+      Standing: ['Electric Desks', 'Manual Desks'],
+      Sitting: ['Compact Desks', 'Executive Desks'],
+    },
+    Chairs: {
+      Ergonomic: ['Mesh Chairs', 'Leather Chairs'],
+      Guest: ['Stacking Chairs', 'Visitor Chairs'],
+    },
+    Supplies: {
+      Paper: ['A4 Paper', 'Notebooks'],
+      Writing: ['Pens', 'Markers'],
+      Organizers: ['Trays', 'File Boxes'],
+    },
+  },
+  Outdoor: {
+    Garden: {
+      Tools: ['Hand Tools', 'Power Tools'],
+      Planters: ['Ceramic Pots', 'Hanging Baskets'],
+      Furniture: ['Benches', 'Loungers'],
+    },
+    Sports: {
+      Fitness: ['Weights', 'Mats', 'Bands'],
+      Recreation: ['Balls', 'Rackets'],
+    },
+  },
+  Kitchen: {
+    Cookware: {
+      Pots: ['Sauce Pans', 'Stock Pots'],
+      Pans: ['Frying Pans', 'Woks'],
+      Bakeware: ['Baking Trays', 'Cake Tins'],
+    },
+    Tableware: {
+      Plates: ['Dinner Plates', 'Side Plates'],
+      Drinkware: ['Mugs', 'Glasses'],
+      Cutlery: ['Fork Sets', 'Knife Sets'],
+    },
+    Food: {
+      DryGoods: ['Pasta', 'Rice', 'Beans'],
+      Beverages: ['Coffee', 'Tea', 'Juice'],
+      Snacks: ['Nuts', 'Bars'],
+    },
+  },
+};
+
+function sleep(ms) {
+  return new Promise((resolve) => setTimeout(resolve, ms));
+}
+
+function hashBuffer(buf) {
+  return crypto.createHash('sha256').update(buf).digest('hex');
+}
+
+function padSku(n) {
+  return `DEMO-${String(n).padStart(5, '0')}`;
+}
+
+function barcodeFor(n) {
+  return `200${String(n).padStart(10, '0')}`;
+}
+
+function formatDateTime(date) {
+  const pad = (n) => String(n).padStart(2, '0');
+  return `${date.getFullYear()}-${pad(date.getMonth() + 1)}-${pad(date.getDate())} ${pad(date.getHours())}:${pad(date.getMinutes())}:${pad(date.getSeconds())}`;
+}
+
+function grossPrice(net, taxRate) {
+  return (Number(net) * (1 + Number(taxRate) / 100)).toFixed(2);
+}
+
+function pick(arr, i) {
+  return arr[i % arr.length];
+}
+
+function variantCombos(axes) {
+  const keys = Object.keys(axes);
+  if (keys.length === 0) {
+    return [{}];
+  }
+  let combos = [{}];
+  for (const key of keys) {
+    const next = [];
+    for (const base of combos) {
+      for (const value of axes[key]) {
+        next.push({ ...base, [key]: value });
+      }
+    }
+    combos = next;
+  }
+  return combos;
+}
+
+function formatVariants(combo) {
+  return Object.entries(combo)
+    .map(([k, v]) => `${k}: ${v}`)
+    .join(' | ');
+}
+
+async function mapPool(items, concurrency, fn) {
+  const results = new Array(items.length);
+  let index = 0;
+
+  async function worker() {
+    while (index < items.length) {
+      const i = index++;
+      results[i] = await fn(items[i], i);
+    }
+  }
+
+  await Promise.all(Array.from({ length: Math.min(concurrency, items.length) }, () => worker()));
+  return results;
+}
+
+function subjectFromProductName(name) {
+  return String(name || '')
+    .replace(/\s*\([^)]*\)\s*$/, '')
+    .replace(STEM_RE, '')
+    .replace(/\s+Featured\s+\d+$/i, '')
+    .replace(/\s+Item$/i, '')
+    .replace(/\s+Starter Kit\s+\d+$/i, '')
+    .replace(/\s+Kit$/i, '')
+    .trim();
+}
+
+function keywordsForSubject(subject) {
+  if (!subject) {
+    return 'product';
+  }
+  if (KEYWORD_ALIASES[subject]) {
+    return KEYWORD_ALIASES[subject];
+  }
+  const cleaned = subjectFromProductName(subject);
+  if (KEYWORD_ALIASES[cleaned]) {
+    return KEYWORD_ALIASES[cleaned];
+  }
+  const tags = cleaned
+    .replace(/&/g, ' ')
+    .split(/[\s/_-]+/)
+    .map((w) => w.toLowerCase().replace(/[^a-z0-9]/g, ''))
+    .filter((w) => w.length > 2 && !['the', 'and', 'set', 'sets'].includes(w))
+    .slice(0, 3);
+  return tags.length > 0 ? tags.join(',') : 'product';
+}
+
+function lockFromSeed(seed) {
+  const hex = crypto.createHash('sha1').update(String(seed)).digest('hex').slice(0, 8);
+  return Number.parseInt(hex, 16) % 1_000_000_000 || 1;
+}
+
+async function fetchBuffer(url, retries = 4) {
+  for (let attempt = 0; attempt < retries; attempt++) {
+    try {
+      const res = await fetch(url, {
+        redirect: 'follow',
+        headers: { 'User-Agent': 'jtlsrv-demo-catalog/1.0' },
+      });
+      if (!res.ok) {
+        throw new Error(`HTTP ${res.status}`);
+      }
+      const buf = Buffer.from(await res.arrayBuffer());
+      if (buf.length < 1000) {
+        throw new Error('image too small');
+      }
+      await sharp(buf).metadata();
+      return buf;
+    } catch (err) {
+      if (attempt === retries - 1) {
+        throw err;
+      }
+      await sleep(250 * (attempt + 1));
+    }
+  }
+  throw new Error('unreachable');
+}
+
+const rawImageCache = new Map();
+
+async function fetchMatchingImage(keywords, lock) {
+  const cacheKey = `${keywords}|${lock}`;
+  if (rawImageCache.has(cacheKey)) {
+    return rawImageCache.get(cacheKey);
+  }
+
+  const pathTags = String(keywords)
+    .split(',')
+    .map((tag) => encodeURIComponent(tag.trim()))
+    .filter(Boolean)
+    .join(',');
+
+  try {
+    const flickrUrl = `https://loremflickr.com/${IMAGE_SIZE}/${IMAGE_SIZE}/${pathTags}?lock=${lock}`;
+    const buf = await fetchBuffer(flickrUrl);
+    rawImageCache.set(cacheKey, buf);
+    return buf;
+  } catch (err) {
+    console.warn(`  loremflickr miss (${keywords}): ${err.message}; falling back to picsum`);
+  }
+
+  const picsumUrl = `https://picsum.photos/seed/${encodeURIComponent(`${keywords}-${lock}`)}/${IMAGE_SIZE}/${IMAGE_SIZE}.jpg`;
+  const buf = await fetchBuffer(picsumUrl);
+  rawImageCache.set(cacheKey, buf);
+  return buf;
+}
+
+async function processImage(raw, { tintKey = null, label = null } = {}) {
+  let pipeline = sharp(raw).resize(IMAGE_SIZE, IMAGE_SIZE, { fit: 'cover' });
+
+  if (tintKey && TINTS[tintKey]) {
+    const { r, g, b } = TINTS[tintKey];
+    const overlay = await sharp({
+      create: {
+        width: IMAGE_SIZE,
+        height: IMAGE_SIZE,
+        channels: 4,
+        background: { r, g, b, alpha: 0.28 },
+      },
+    })
+      .png()
+      .toBuffer();
+    pipeline = sharp(await pipeline.toBuffer()).composite([{ input: overlay, blend: 'over' }]);
+  }
+
+  if (label) {
+    const safe = String(label)
+      .replace(/&/g, '&amp;')
+      .replace(/</g, '&lt;')
+      .replace(/>/g, '&gt;')
+      .slice(0, 40);
+    const svg = Buffer.from(`
+      <svg width="${IMAGE_SIZE}" height="${IMAGE_SIZE}">
+        <rect x="0" y="${IMAGE_SIZE - 48}" width="${IMAGE_SIZE}" height="48" fill="rgba(0,0,0,0.45)"/>
+        <text x="16" y="${IMAGE_SIZE - 18}" font-family="sans-serif" font-size="22" fill="white">${safe}</text>
+      </svg>
+    `);
+    pipeline = sharp(await pipeline.toBuffer()).composite([{ input: svg, blend: 'over' }]);
+  }
+
+  return pipeline.jpeg({ quality: JPEG_QUALITY, mozjpeg: true }).toBuffer();
+}
+
+async function saveImage(jpegBuffer) {
+  const hash = hashBuffer(jpegBuffer);
+  const filePath = path.join(IMAGES_DIR, `${hash}.jpg`);
+  if (!fs.existsSync(filePath)) {
+    fs.writeFileSync(filePath, jpegBuffer);
+  }
+  return hash;
+}
+
+function buildCategoryTree() {
+  const categories = [];
+  let nextId = 1;
+  let sort = 0;
+  let lastChanged = 1;
+
+  function add(name, pid, depth) {
+    const id = nextId++;
+    categories.push({
+      _id: String(id),
+      name,
+      pid: pid === null ? '0' : String(pid),
+      sort: String(++sort),
+      lastChanged: String(lastChanged++),
+      imghash: null,
+      imgsrc: null,
+      discounts: [],
+      depth,
+    });
+    return id;
+  }
+
+  for (const [dept, groups] of Object.entries(TREE)) {
+    const deptId = add(dept, null, 1);
+    for (const [group, subgroups] of Object.entries(groups)) {
+      const groupId = add(group, deptId, 2);
+      for (const [subgroup, leaves] of Object.entries(subgroups)) {
+        const subgroupId = add(subgroup, groupId, 3);
+        for (const leaf of leaves) {
+          add(leaf, subgroupId, 4);
+        }
+      }
+    }
+  }
+
+  return categories;
+}
+
+function chooseAxes(leafName, familyIndex) {
+  const foodish = /Pasta|Rice|Beans|Coffee|Tea|Juice|Nuts|Bars|Paper|Notebooks/.test(leafName);
+  const furnitureish = /Chair|Sofa|Table|Desk|Shelf|Cabinet|Bench|Lounger|Lamp|Armchair|Stool/.test(leafName);
+
+  const mode = familyIndex % 5;
+  if (foodish || mode === 0) {
+    return { Size: PACKAGE_SIZES.slice(0, 4 + (familyIndex % 3)) };
+  }
+  if (furnitureish || mode === 1) {
+    return {
+      Color: COLORS.slice(0, 3 + (familyIndex % 3)),
+      Material: MATERIALS.slice(0, 2 + (familyIndex % 2)),
+    };
+  }
+  if (mode === 2) {
+    return { Color: COLORS.slice(0, 4 + (familyIndex % 3)) };
+  }
+  if (mode === 3) {
+    return { Material: MATERIALS.slice(0, 3 + (familyIndex % 3)) };
+  }
+  return {
+    Color: COLORS.slice(0, 2 + (familyIndex % 2)),
+    Size: PACKAGE_SIZES.slice(0, 2 + (familyIndex % 2)),
+  };
+}
+
+const MIN_PRODUCTS_PER_CATEGORY = 5;
+
+function buildProducts(categories, customerGroupIds) {
+  const products = [];
+  const composites = [];
+  let nextId = 1;
+  let lastChanged = 1;
+  let familyIndex = 0;
+  const createdAt = formatDateTime(new Date('2024-01-15T10:00:00Z'));
+  const taxRate = 19;
+  const leafCategories = categories.filter((c) => c.depth === 4);
+
+  function pricesFor(net) {
+    const base = grossPrice(net, taxRate);
+    const wholesaleNet = Number(net) * 0.85;
+    return customerGroupIds.map((customerGroupId, i) => ({
+      customerGroupId: String(customerGroupId),
+      customerId: '0',
+      price: i === 0 ? base : grossPrice(wholesaleNet, taxRate),
+      quantity: '0',
+    }));
+  }
+
+  function pushProduct(partial) {
+    const id = nextId++;
+    const net = partial.netPrice ?? 9.99 + (id % 80) * 1.25;
+    const product = {
+      _id: String(id),
+      sku: padSku(id),
+      barcode: barcodeFor(id),
+      name: partial.name,
+      tax_rate: String(taxRate),
+      price: grossPrice(net, taxRate),
+      created_at: createdAt,
+      lastChanged: String(lastChanged++),
+      categories_id: partial.categoryId,
+      categories: [{ categoryId: partial.categoryId }],
+      prices: pricesFor(net),
+      is_parent: partial.is_parent ?? '0',
+      parent: partial.parent ?? '0',
+      variants: partial.variants ?? '',
+      isCompositeProduct: partial.isCompositeProduct ?? '0',
+      attributes: [],
+      imghash: null,
+      imgsrc: null,
+      _tintKey: partial.tintKey ?? null,
+      _label: partial.label ?? null,
+      _seed: partial.seed,
+    };
+    products.push(product);
+    return product;
+  }
+
+  function countByCategory() {
+    const counts = new Map();
+    for (const product of products) {
+      const id = product.categories_id;
+      counts.set(id, (counts.get(id) || 0) + 1);
+    }
+    return counts;
+  }
+
+  // Variant families on leaf categories (majority of catalog)
+  for (const leaf of leafCategories) {
+    const familiesPerLeaf = 2 + (Number(leaf._id) % 3); // 2–4 families
+    for (let f = 0; f < familiesPerLeaf; f++) {
+      familyIndex++;
+      const stem = pick(PRODUCT_STEMS, familyIndex);
+      const baseName = `${stem} ${leaf.name}`;
+      const axes = chooseAxes(leaf.name, familyIndex);
+      const combos = variantCombos(axes).slice(0, 8);
+
+      const parent = pushProduct({
+        name: baseName,
+        categoryId: leaf._id,
+        is_parent: '1',
+        parent: '0',
+        variants: '',
+        seed: `parent-${leaf._id}-${f}`,
+        netPrice: 15 + (familyIndex % 40),
+      });
+
+      for (let c = 0; c < combos.length; c++) {
+        const combo = combos[c];
+        const tintKey = combo.Color || null;
+        pushProduct({
+          name: `${baseName} (${formatVariants(combo)})`,
+          categoryId: leaf._id,
+          is_parent: '0',
+          parent: parent._id,
+          variants: formatVariants(combo),
+          tintKey,
+          label: formatVariants(combo),
+          seed: `var-${leaf._id}-${f}-${c}`,
+          netPrice: 15 + (familyIndex % 40) + c * 0.5,
+        });
+      }
+
+      if (products.length >= TARGET_PRODUCTS) {
+        break;
+      }
+    }
+    if (products.length >= TARGET_PRODUCTS) {
+      break;
+    }
+  }
+
+  // Dedicated simple kit products for BOM (not variant parents/children)
+  const kitLeaf = leafCategories[0];
+  for (let i = 0; i < 8; i++) {
+    const kit = pushProduct({
+      name: `${pick(PRODUCT_STEMS, i + 7)} Starter Kit ${i + 1}`,
+      categoryId: kitLeaf._id,
+      isCompositeProduct: '1',
+      seed: `kit-${i}`,
+      netPrice: 49 + i * 5,
+    });
+    const components = products
+      .filter((p) => p.is_parent === '0' && p.parent !== '0' && p._id !== kit._id)
+      .slice(i * 3, i * 3 + 3);
+    for (const comp of components) {
+      composites.push({
+        productId: kit._id,
+        productIdComponent: comp._id,
+        quantity: (1 + (i % 3)).toFixed(2),
+        lastChanged: kit.lastChanged,
+      });
+    }
+  }
+
+  // Fill remaining with simple products across leaves
+  let simpleIndex = 0;
+  while (products.length < TARGET_PRODUCTS) {
+    const leaf = leafCategories[simpleIndex % leafCategories.length];
+    const stem = pick(PRODUCT_STEMS, simpleIndex + 3);
+    pushProduct({
+      name: `${stem} ${leaf.name} Item`,
+      categoryId: leaf._id,
+      seed: `simple-${leaf._id}-${simpleIndex}`,
+      netPrice: 4.5 + (simpleIndex % 50),
+    });
+    simpleIndex++;
+  }
+
+  // Every category (including top-level / intermediate) gets ≥5 products
+  let ensureIndex = 0;
+  for (const category of categories) {
+    const counts = countByCategory();
+    const have = counts.get(category._id) || 0;
+    for (let i = have; i < MIN_PRODUCTS_PER_CATEGORY; i++) {
+      const stem = pick(PRODUCT_STEMS, ensureIndex + i);
+      pushProduct({
+        name: `${stem} ${category.name} Featured ${i + 1}`,
+        categoryId: category._id,
+        seed: `ensure-${category._id}-${i}`,
+        netPrice: 8 + ((ensureIndex + i) % 40),
+      });
+    }
+    ensureIndex++;
+  }
+
+  return { products, composites };
+}
+
+async function main() {
+  console.log('Generating demo catalog…');
+  fs.mkdirSync(IMAGES_DIR, { recursive: true });
+
+  // Clear previous images
+  for (const file of fs.readdirSync(IMAGES_DIR)) {
+    fs.unlinkSync(path.join(IMAGES_DIR, file));
+  }
+
+  const categories = buildCategoryTree();
+  const leafCategories = categories.filter((c) => c.depth === 4);
+  console.log(`Categories: ${categories.length} (leaves: ${leafCategories.length})`);
+
+  const customerGroups = [
+    {
+      customerGroupId: '1',
+      name: 'Standard',
+      standard: '1',
+      discountPercent: '0.00',
+      lastChanged: '1',
+    },
+    {
+      customerGroupId: '2',
+      name: 'Wholesale',
+      standard: '0',
+      discountPercent: '10.00',
+      lastChanged: '2',
+    },
+  ];
+
+  const { products, composites } = buildProducts(
+    categories,
+    customerGroups.map((g) => Number(g.customerGroupId))
+  );
+  const perCategory = new Map();
+  for (const product of products) {
+    perCategory.set(product.categories_id, (perCategory.get(product.categories_id) || 0) + 1);
+  }
+  const minPerCategory = Math.min(...categories.map((c) => perCategory.get(c._id) || 0));
+  console.log(
+    `Products: ${products.length} (composites links: ${composites.length}, min per category: ${minPerCategory})`
+  );
+
+  const categoryById = new Map(categories.map((c) => [c._id, c]));
+
+  const imageJobs = [
+    ...categories.map((c) => ({
+      kind: 'category',
+      ref: c,
+      keywords: keywordsForSubject(c.name),
+      lock: lockFromSeed(`cat-${c._id}`),
+      tintKey: null,
+      label: c.name,
+    })),
+    ...products.map((p) => {
+      const category = categoryById.get(p.categories_id);
+      const subject =
+        p.isCompositeProduct === '1'
+          ? 'gift basket'
+          : category?.name || subjectFromProductName(p.name);
+      const lockSeed = p.parent !== '0' ? `parent-${p.parent}` : `product-${p._id}`;
+      return {
+        kind: 'product',
+        ref: p,
+        keywords: keywordsForSubject(subject),
+        lock: lockFromSeed(lockSeed),
+        tintKey: p._tintKey,
+        label: p.is_parent === '1' ? p.name : p._label,
+      };
+    }),
+  ];
+
+  console.log(`Downloading / processing ${imageJobs.length} images (keyword-matched via LoremFlickr)…`);
+  let done = 0;
+  await mapPool(imageJobs, DOWNLOAD_CONCURRENCY, async (job) => {
+    const raw = await fetchMatchingImage(job.keywords, job.lock);
+    const jpeg = await processImage(raw, { tintKey: job.tintKey, label: job.label });
+    const hash = await saveImage(jpeg);
+    job.ref.imghash = hash;
+    job.ref.imgsrc = hash;
+    done++;
+    if (done % 50 === 0 || done === imageJobs.length) {
+      console.log(`  images ${done}/${imageJobs.length} (unique fetches: ${rawImageCache.size})`);
+    }
+  });
+
+  // Strip generator-only fields
+  for (const p of products) {
+    delete p._tintKey;
+    delete p._label;
+    delete p._seed;
+  }
+  for (const c of categories) {
+    delete c.depth;
+  }
+
+  const deletedEntities = [
+    {
+      entityId: '999001',
+      entityType: '1',
+      lastChanged: '1',
+    },
+  ];
+
+  const catalog = {
+    version: 1,
+    generatedAt: new Date().toISOString(),
+    customerGroups,
+    categories,
+    products,
+    composites,
+    deletedEntities,
+    maxOrderId: 0,
+  };
+
+  const catalogPath = path.join(DEMO_DIR, 'catalog.json');
+  fs.writeFileSync(catalogPath, JSON.stringify(catalog, null, 2));
+
+  const imageCount = fs.readdirSync(IMAGES_DIR).length;
+  console.log(`Wrote ${catalogPath}`);
+  console.log(`Images on disk: ${imageCount}`);
+  console.log('Done.');
+}
+
+main().catch((err) => {
+  console.error(err);
+  process.exit(1);
+});

scripts/s3-backup/README.md

@@ -16,9 +16,12 @@ First run installs the CA into the `mssql` Docker container (`/var/opt/mssql/sec
 |---------|-------------|
 | `npm run backup:s3` | Start S3 endpoint + backup `MSSQL_DATABASE` from `.env` |
 | `npm run backup:s3:quick` | Same, but skip PAL CA install/restart (after first setup) |
+| `npm run restore:s3` | Start S3 endpoint + restore latest `.bak` for `MSSQL_DATABASE` |
+| `npm run restore:s3:quick` | Same, but skip PAL CA install/restart (after first setup) |
 | `node scripts/s3-backup/backup.mjs --all` | Backup `eazybusiness` and `Mandant_3` |
 | `node scripts/s3-backup/backup.mjs --server-only` | Run endpoint only |
 | `npm run backup:s3 -- --skip-trust` | Skip CA install (npm needs `--` before script args) |
+| `npm run restore:s3:quick -- <file.bak>` | Restore a specific backup file |
 
 ## Layout
 
@@ -26,6 +29,7 @@ First run installs the CA into the `mssql` Docker container (`/var/opt/mssql/sec
 scripts/s3-backup/
   server.mjs      S3-compatible HTTPS server (SigV4, multipart upload)
   backup.mjs      Orchestrator: trust CA → start server → sqlcmd BACKUP
+  restore.mjs     Orchestrator: trust CA → start server → sqlcmd RESTORE
   config.mjs      Host, port, credentials
   ensure-certs.mjs  TLS certs + Docker MSSQL PAL trust
   sigv4.mjs       AWS Signature V4 verification

scripts/s3-backup/restore.mjs

@@ -0,0 +1,335 @@
+#!/usr/bin/env node
+import { fork, spawn, spawnSync } from 'node:child_process';
+import fs from 'node:fs';
+import https from 'node:https';
+import path from 'node:path';
+import { fileURLToPath } from 'node:url';
+
+import dotenv from 'dotenv';
+
+import {
+  ACCESS_KEY,
+  BUCKET,
+  DATA_DIR,
+  HOST,
+  PORT,
+  SECRET_KEY,
+  SERVER_CERT,
+  s3BaseUrl,
+} from './config.mjs';
+import { caTrustStatus, ensureCerts, installCaTrust } from './ensure-certs.mjs';
+
+const root = path.resolve(path.dirname(fileURLToPath(import.meta.url)), '../..');
+dotenv.config({ path: path.join(root, '.env') });
+
+const argv = process.argv.slice(2);
+const args = new Set(argv.filter((a) => a.startsWith('--')));
+const positional = argv.filter((a) => !a.startsWith('--'));
+
+const serverOnly = args.has('--server-only');
+const skipTrust = args.has('--skip-trust');
+const useLatest = args.has('--latest');
+const replace = !args.has('--no-replace');
+
+const databaseArg = argv.find((a, i) => argv[i - 1] === '--database');
+const defaultDb = process.env.MSSQL_DATABASE || 'eazybusiness';
+const database = databaseArg || defaultDb;
+
+function sqlcmd(query) {
+  const server = process.env.MSSQL_SERVER || 'localhost';
+  const port = process.env.MSSQL_PORT || '1433';
+  const user = process.env.MSSQL_USER || 'sa';
+  const password = process.env.MSSQL_PASSWORD || '';
+  return new Promise((resolve, reject) => {
+    const child = spawn(
+      'sqlcmd',
+      ['-W', '-C', '-S', `${server},${port}`, '-U', user, '-P', password, '-Q', query],
+      { encoding: 'utf8' }
+    );
+    let stdout = '';
+    let stderr = '';
+    child.stdout?.on('data', (chunk) => {
+      stdout += chunk;
+      process.stdout.write(chunk);
+    });
+    child.stderr?.on('data', (chunk) => {
+      stderr += chunk;
+      process.stderr.write(chunk);
+    });
+    child.on('close', (code) => {
+      const output = `${stdout}${stderr}`;
+      if (code !== 0 || /^\s*Msg \d+,/m.test(output)) {
+        reject(new Error(output.trim() || 'sqlcmd failed'));
+      } else {
+        resolve(stdout);
+      }
+    });
+    child.on('error', reject);
+  });
+}
+
+function listBackups(prefix) {
+  if (!fs.existsSync(DATA_DIR)) return [];
+  return fs
+    .readdirSync(DATA_DIR)
+    .filter((name) => name.endsWith('.bak') && name.startsWith(`${prefix}-`))
+    .map((name) => ({
+      name,
+      path: path.join(DATA_DIR, name),
+      mtime: fs.statSync(path.join(DATA_DIR, name)).mtimeMs,
+    }))
+    .sort((a, b) => b.mtime - a.mtime);
+}
+
+function resolveBackupFile() {
+  if (positional.length > 1) {
+    throw new Error(`Expected at most one backup file, got: ${positional.join(', ')}`);
+  }
+
+  if (positional.length === 1) {
+    const input = positional[0];
+    if (path.isAbsolute(input) || input.includes('/')) {
+      const resolved = path.resolve(input);
+      if (!fs.existsSync(resolved)) {
+        throw new Error(`Backup file not found: ${resolved}`);
+      }
+      const base = path.basename(resolved);
+      const target = path.join(DATA_DIR, base);
+      if (resolved !== target) {
+        fs.mkdirSync(DATA_DIR, { recursive: true });
+        fs.copyFileSync(resolved, target);
+        console.log(`Copied ${resolved} -> ${target}`);
+      }
+      return base;
+    }
+    const onDisk = path.join(DATA_DIR, input);
+    if (!fs.existsSync(onDisk)) {
+      throw new Error(`Backup file not found: ${onDisk}`);
+    }
+    return input;
+  }
+
+  if (useLatest || positional.length === 0) {
+    const matches = listBackups(database);
+    if (matches.length === 0) {
+      throw new Error(`No backups found for ${database} in ${DATA_DIR}`);
+    }
+    console.log(`Using latest backup: ${matches[0].name}`);
+    return matches[0].name;
+  }
+
+  throw new Error('Specify a backup file or pass --latest');
+}
+
+function databaseFromBackup(file) {
+  const match = path.basename(file).match(/^(.+)-\d{4}-\d{2}-\d{2}T/);
+  return match ? match[1] : database;
+}
+
+async function isServerUp() {
+  const probeHost = /^\d+\./.test(HOST) ? '127.0.0.1' : HOST;
+  return new Promise((resolve) => {
+    const opts = {
+      host: probeHost,
+      port: PORT,
+      path: '/',
+      method: 'GET',
+      rejectUnauthorized: false,
+    };
+    if (!/^\d+\./.test(HOST)) {
+      opts.servername = HOST;
+    }
+    const req = https.request(opts, (res) => {
+      res.resume();
+      resolve(res.statusCode === 403 || res.statusCode === 200);
+    });
+    req.on('error', () => resolve(false));
+    req.setTimeout(1000, () => {
+      req.destroy();
+      resolve(false);
+    });
+    req.end();
+  });
+}
+
+async function waitForServer() {
+  for (let i = 0; i < 40; i++) {
+    if (await isServerUp()) return;
+    await new Promise((r) => setTimeout(r, 250));
+  }
+  throw new Error(`S3 endpoint did not start on https://${HOST}:${PORT}`);
+}
+
+function pidOnPort(port) {
+  const result = spawnSync('ss', ['-tlnp'], { encoding: 'utf8' });
+  const match = result.stdout?.match(new RegExp(`:${port}\\s+.*?pid=(\\d+)`));
+  return match ? Number(match[1]) : null;
+}
+
+async function stopPortListener(port) {
+  const stale = pidOnPort(port);
+  if (!stale) return;
+  try {
+    process.kill(stale);
+  } catch {
+    spawnSync('fuser', ['-k', `${port}/tcp`], { stdio: 'pipe' });
+  }
+  await new Promise((r) => setTimeout(r, 200));
+}
+
+async function ensureServerProcess() {
+  await stopPortListener(PORT);
+  return startServerProcess();
+}
+
+function ensureCredential() {
+  const cred = s3BaseUrl();
+  return sqlcmd(`
+IF NOT EXISTS (SELECT 1 FROM sys.credentials WHERE name = N'${cred}')
+BEGIN
+  CREATE CREDENTIAL [${cred}]
+  WITH IDENTITY = 'S3 Access Key',
+       SECRET = '${ACCESS_KEY}:${SECRET_KEY}';
+END
+`);
+}
+
+async function restoreDatabase(db, file) {
+  const url = `${s3BaseUrl()}/${file}`;
+  const onDisk = path.join(DATA_DIR, file);
+  if (!fs.existsSync(onDisk)) {
+    throw new Error(`Backup file missing on disk: ${onDisk}`);
+  }
+  const mb = (fs.statSync(onDisk).size / (1024 * 1024)).toFixed(1);
+  console.log(`Restoring ${db} <- ${url} (${mb} MB)`);
+
+  const replaceClause = replace ? ', REPLACE' : '';
+  await sqlcmd(`
+IF DB_ID(N'${db}') IS NOT NULL
+BEGIN
+  ALTER DATABASE [${db}] SET SINGLE_USER WITH ROLLBACK IMMEDIATE;
+END
+RESTORE DATABASE [${db}]
+FROM URL = '${url}'
+WITH STATS = 10, MAXTRANSFERSIZE = 20971520${replaceClause};
+ALTER DATABASE [${db}] SET MULTI_USER;
+`);
+}
+
+function waitForSql() {
+  for (let i = 0; i < 60; i++) {
+    const result = spawnSync(
+      'sqlcmd',
+      [
+        '-W',
+        '-C',
+        '-S',
+        `${process.env.MSSQL_SERVER || 'localhost'},${process.env.MSSQL_PORT || '1433'}`,
+        '-U',
+        process.env.MSSQL_USER || 'sa',
+        '-P',
+        process.env.MSSQL_PASSWORD || '',
+        '-Q',
+        'SELECT 1',
+      ],
+      { encoding: 'utf8' }
+    );
+    if (result.status === 0 && !/Msg \d+,/.test(result.stdout || '')) {
+      return;
+    }
+    spawnSync('sleep', ['2']);
+  }
+  throw new Error('MSSQL did not become ready');
+}
+
+function startServerProcess() {
+  const child = fork(new URL('./server.mjs', import.meta.url), {
+    env: { ...process.env, S3_BACKUP_CHILD: '1' },
+    stdio: 'inherit',
+  });
+  return child;
+}
+
+async function main() {
+  if (skipTrust) {
+    const status = caTrustStatus();
+    if (!status.inSync) {
+      throw new Error(
+        'PAL CA is out of sync with scripts/s3-backup/certs/ca.pem. Run: npm run backup:s3'
+      );
+    }
+    console.log('Skipping PAL CA install (--skip-trust)');
+    if (!fs.existsSync(SERVER_CERT)) {
+      throw new Error('No TLS certs found. Run: npm run backup:s3');
+    }
+  } else {
+    ensureCerts(HOST);
+    const trust = installCaTrust();
+    if (!trust.ok) {
+      console.warn('Could not install CA into MSSQL container. Run:');
+      console.warn('  docker exec -u root mssql mkdir -p /var/opt/mssql/security/ca-certificates');
+      console.warn('  docker cp scripts/s3-backup/certs/ca.pem mssql:/var/opt/mssql/security/ca-certificates/jtlsrv-s3-ca.pem');
+      console.warn('  docker exec -u root mssql chown mssql:mssql /var/opt/mssql/security/ca-certificates/jtlsrv-s3-ca.pem');
+      console.warn('  docker restart mssql');
+    } else {
+      console.log('Installed S3 CA into MSSQL PAL trust store');
+      if (trust.restarted) {
+        console.log('Waiting for MSSQL to restart...');
+        waitForSql();
+      }
+    }
+  }
+
+  const serverChild = await ensureServerProcess();
+  try {
+    await waitForServer();
+
+    if (serverOnly) {
+      console.log('Server running (--server-only). Ctrl+C to stop.');
+      await new Promise((resolve) => serverChild.on('exit', resolve));
+      return;
+    }
+
+    const file = resolveBackupFile();
+    const db = databaseArg || databaseFromBackup(file);
+    await ensureCredential();
+    await restoreDatabase(db, file);
+    console.log(`\nRestored ${db} from ${file}`);
+  } finally {
+    if (!serverOnly) {
+      serverChild.kill();
+      await stopPortListener(PORT);
+    }
+  }
+}
+
+if (args.has('--help')) {
+  console.log(`Usage: node scripts/s3-backup/restore.mjs [file.bak] [options]
+
+Starts the local S3-compatible HTTPS endpoint and restores MSSQL from a .bak on disk.
+
+Arguments:
+  file.bak       Backup filename in data/${BUCKET}/, or a path to copy from
+
+Options:
+  --latest           Use newest backup matching --database (default if no file given)
+  --database <name>  Target database (default: MSSQL_DATABASE or name parsed from file)
+  --no-replace       Do not pass REPLACE to RESTORE
+  --server-only      Start endpoint only, no restore
+  --skip-trust       Skip installing CA cert into system trust store
+
+Examples:
+  npm run restore:s3:quick
+  npm run restore:s3:quick -- eazybusiness-2026-07-23T19-02-44-903Z.bak
+  npm run restore:s3:quick -- --database eazybusiness --latest
+
+Reads MSSQL_* from .env in repo root.
+Backups are read from scripts/s3-backup/data/${BUCKET}/
+`);
+  process.exit(0);
+}
+
+main().catch((err) => {
+  console.error(err.message || err);
+  process.exit(1);
+});

scripts/s3-backup/server.mjs

@@ -214,13 +214,36 @@ async function handle(req, res) {
     if (!fs.existsSync(file)) {
       return send(res, 404, xml('<Error><Code>NoSuchKey</Code><Message>Not Found</Message></Error>'));
     }
-    const data = fs.readFileSync(file);
+    const stat = fs.statSync(file);
+    const etag = etagFor(fs.readFileSync(file));
+    const range = req.headers.range;
+    if (range) {
+      const match = /^bytes=(\d+)-(\d*)$/i.exec(range);
+      if (match) {
+        const start = Number(match[1]);
+        const end = match[2] ? Number(match[2]) : stat.size - 1;
+        if (start >= stat.size || end < start) {
+          res.writeHead(416, { 'Content-Range': `bytes */${stat.size}` });
+          return res.end();
+        }
+        const length = end - start + 1;
+        res.writeHead(206, {
+          'Content-Type': 'application/octet-stream',
+          'Content-Length': length,
+          'Content-Range': `bytes ${start}-${end}/${stat.size}`,
+          'Accept-Ranges': 'bytes',
+          ETag: etag,
+        });
+        return fs.createReadStream(file, { start, end }).pipe(res);
+      }
+    }
     res.writeHead(200, {
       'Content-Type': 'application/octet-stream',
-      'Content-Length': data.length,
-      ETag: etagFor(data),
+      'Content-Length': stat.size,
+      'Accept-Ranges': 'bytes',
+      ETag: etag,
     });
-    return res.end(data);
+    return fs.createReadStream(file).pipe(res);
   }
 
   if (req.method === 'HEAD' && key) {
@@ -231,6 +254,7 @@ async function handle(req, res) {
     const stat = fs.statSync(file);
     return send(res, 200, '', {
       'Content-Length': stat.size,
+      'Accept-Ranges': 'bytes',
       ETag: etagFor(fs.readFileSync(file)),
     });
   }

server.js

@@ -5,6 +5,9 @@ import { fileURLToPath } from 'node:url';
 import 'dotenv/config';
 
 import { connectDb, closeDb } from './src/db.js';
+import { isDemoMode } from './src/demo/mode.js';
+import { loadDemoCatalog } from './src/demo/store.js';
+import { readCertMetadata } from './src/cert-meta.js';
 import { createJtlPosServer } from './src/jtl-server.js';
 import { createPairingStore } from './src/pairing.js';
 import { closeOrderLog } from './src/order-log.js';
@@ -57,11 +60,18 @@ function formatBody(buffer) {
   return `[binary ${buffer.length} bytes]`;
 }
 
+const certPem = fs.readFileSync(certPath);
+const keyPem = fs.readFileSync(keyPath);
+const certMeta = readCertMetadata(certPem);
+
 const pairingStore = createPairingStore();
 pairingStore.setPairingCode(PAIRING_CODE, 'JTL-POS');
 pairingStore.registerDevice(AUTH_TOKEN, 'JTL-POS');
 
-const jtlHandler = createJtlPosServer(pairingStore, { authToken: AUTH_TOKEN });
+const jtlHandler = createJtlPosServer(pairingStore, {
+  authToken: AUTH_TOKEN,
+  ...certMeta,
+});
 
 const loggedJtlHandler = async (req, res) => {
   const started = Date.now();
@@ -106,21 +116,29 @@ const loggedJtlHandler = async (req, res) => {
 
 const httpsServer = https.createServer(
   {
-    key: fs.readFileSync(keyPath),
-    cert: fs.readFileSync(certPath),
+    key: keyPem,
+    cert: certPem,
   },
   loggedJtlHandler
 );
 
 async function start() {
-  try {
-    const pool = await connectDb();
-    logger.success(`MSSQL connected: ${process.env.MSSQL_SERVER}/${process.env.MSSQL_DATABASE}`);
-    const activeShop = await fetchActiveShop(pool);
-    logger.info(`Active shop ID: ${activeShop}`);
-  } catch (err) {
-    logger.warn(`MSSQL connection skipped: ${err.message}`);
-    logger.warn('POS handshake will still work; sync from database is not available yet.');
+  if (isDemoMode()) {
+    const stats = await loadDemoCatalog();
+    logger.success(
+      `DEMO_MODE: loaded catalog (${stats.products} products, ${stats.categories} categories, ${stats.customerGroups} customer groups, ${stats.composites} composite links)`
+    );
+    logger.info('MSSQL is skipped while DEMO_MODE=true');
+  } else {
+    try {
+      const pool = await connectDb();
+      logger.success(`MSSQL connected: ${process.env.MSSQL_SERVER}/${process.env.MSSQL_DATABASE}`);
+      const activeShop = await fetchActiveShop(pool);
+      logger.info(`Active shop ID: ${activeShop}`);
+    } catch (err) {
+      logger.warn(`MSSQL connection skipped: ${err.message}`);
+      logger.warn('POS handshake will still work; sync from database is not available yet.');
+    }
   }
 
   httpsServer.listen(PORT, '0.0.0.0', () => {

src/cert-meta.js

@@ -0,0 +1,12 @@
+import { X509Certificate } from 'node:crypto';
+
+/** Derive pairing metadata from a PEM-encoded TLS certificate. */
+export function readCertMetadata(certPem) {
+  const x509 = new X509Certificate(certPem);
+  const sha1 = x509.fingerprint; // colon-separated uppercase hex
+  return {
+    certificateFingerprint: sha1.replace(/:/g, ''),
+    certificateSerialNumber: x509.serialNumber,
+    serverFingerprint: sha1.replace(/:/g, '-'),
+  };
+}

src/demo/mode.js

@@ -0,0 +1,3 @@
+export function isDemoMode() {
+  return String(process.env.DEMO_MODE || '').toLowerCase() === 'true';
+}

src/demo/store.js

@@ -0,0 +1,139 @@
+import fs from 'node:fs';
+import path from 'node:path';
+import { fileURLToPath } from 'node:url';
+import { setActiveShop, setActiveShopSubshop } from '../shop.js';
+
+const __dirname = path.dirname(fileURLToPath(import.meta.url));
+const DEMO_ROOT = path.join(__dirname, '..', '..', 'demo');
+const CATALOG_PATH = path.join(DEMO_ROOT, 'catalog.json');
+const IMAGES_DIR = path.join(DEMO_ROOT, 'images');
+
+let catalog = null;
+let nextDemoOrderId = 1;
+
+function ensureLoaded() {
+  if (!catalog) {
+    throw new Error('Demo catalog is not loaded. Call loadDemoCatalog() at startup.');
+  }
+  return catalog;
+}
+
+function afterCursor(rows, cursor, lastChangedKey = 'lastChanged') {
+  const c = Number(cursor) || 0;
+  return rows
+    .filter((row) => Number(row[lastChangedKey]) > c)
+    .sort((a, b) => Number(a[lastChangedKey]) - Number(b[lastChangedKey]));
+}
+
+export async function loadDemoCatalog() {
+  if (!fs.existsSync(CATALOG_PATH)) {
+    throw new Error(
+      `Demo catalog missing at ${CATALOG_PATH}. Run: npm run demo:generate`
+    );
+  }
+
+  const raw = fs.readFileSync(CATALOG_PATH, 'utf8');
+  catalog = JSON.parse(raw);
+
+  if (!Array.isArray(catalog.products) || catalog.products.length === 0) {
+    throw new Error('Demo catalog has no products.');
+  }
+
+  setActiveShop(1);
+  setActiveShopSubshop(1);
+  nextDemoOrderId = Number(catalog.maxOrderId || 0) + 1;
+
+  return {
+    categories: catalog.categories.length,
+    products: catalog.products.length,
+    customerGroups: catalog.customerGroups.length,
+    composites: catalog.composites.length,
+    imagesDir: IMAGES_DIR,
+  };
+}
+
+export function getDemoProductList({ cursor = 0, limit = 20 } = {}) {
+  return afterCursor(ensureLoaded().products, cursor).slice(0, limit);
+}
+
+export function getDemoProductCount({ cursor = 0 } = {}) {
+  return afterCursor(ensureLoaded().products, cursor).length;
+}
+
+export function getDemoCategoryList({ cursor = 0, limit = 20 } = {}) {
+  const data = ensureLoaded();
+  return afterCursor(data.categories, cursor).slice(0, limit).map((category) => ({
+    _id: category._id,
+    imghash: category.imghash,
+    imgsrc: category.imgsrc,
+    name: category.name,
+    pid: category.pid,
+    discounts: category.discounts ?? [],
+    sort: category.sort,
+    lastChanged: category.lastChanged,
+  }));
+}
+
+export function getDemoCategoryCount({ cursor = 0 } = {}) {
+  return afterCursor(ensureLoaded().categories, cursor).length;
+}
+
+export function getDemoCustomerGroupIds() {
+  return ensureLoaded().customerGroups.map((g) => Number(g.customerGroupId));
+}
+
+export function getDemoCustomerGroupList({ cursor = 0 } = {}) {
+  return afterCursor(ensureLoaded().customerGroups, cursor);
+}
+
+export function getDemoCustomerGroupCount({ cursor = 0 } = {}) {
+  return afterCursor(ensureLoaded().customerGroups, cursor).length;
+}
+
+export function getDemoCompositeProductList({ cursor = 0, limit = 100 } = {}) {
+  return afterCursor(ensureLoaded().composites, cursor).slice(0, limit);
+}
+
+export function getDemoCompositeProductCount({ cursor = 0 } = {}) {
+  // Match MSSQL semantics: count distinct composite parent products after cursor
+  const rows = afterCursor(ensureLoaded().composites, cursor);
+  return new Set(rows.map((r) => r.productId)).size;
+}
+
+export function getDemoDeletedEntityList({ cursor = 0, limit = 600 } = {}) {
+  return afterCursor(ensureLoaded().deletedEntities, cursor).slice(0, limit);
+}
+
+export function getDemoDeletedEntityCount({ cursor = 0 } = {}) {
+  return afterCursor(ensureLoaded().deletedEntities, cursor).length;
+}
+
+export function getDemoMaxOrderIdCount() {
+  return Number(ensureLoaded().maxOrderId || 0);
+}
+
+export async function getDemoImageByHash(hash) {
+  ensureLoaded();
+  if (!hash) {
+    return null;
+  }
+
+  const filePath = path.join(IMAGES_DIR, `${hash}.jpg`);
+  if (!fs.existsSync(filePath)) {
+    return null;
+  }
+
+  const buffer = fs.readFileSync(filePath);
+  return { buffer, contentType: 'image/jpeg' };
+}
+
+export async function createDemoOrder(order) {
+  ensureLoaded();
+  const orderId = nextDemoOrderId++;
+  const externalId = String(order?.externalId ?? orderId);
+  return {
+    orderId: String(orderId),
+    orderNumber: `DEMO-${externalId}`,
+    alreadyExists: false,
+  };
+}

src/endpoints/client.js

@@ -60,7 +60,6 @@ export function handle(req, res, { url, pairingStore, config }) {
 
   if (authCode.length === 6) {
     if (pairingStore.hasPairingCode(authCode)) {
-      pairingStore.revokePairingCode(authCode);
       pairingStore.registerDevice(config.authToken, name);
       return sendJson(res, 200, buildClientStep2(authCode, config));
     }

src/http.js

@@ -13,11 +13,19 @@ export function readBody(req) {
   });
 }
 
+const CORS_HEADERS = {
+  'Access-Control-Allow-Origin': '*',
+  'Access-Control-Allow-Methods': 'GET, POST, OPTIONS',
+  'Access-Control-Allow-Headers': 'Content-Type, Authorization',
+  'Access-Control-Max-Age': '86400',
+};
+
 export function sendJson(res, statusCode, body) {
   const responseBody = JSON.stringify(body);
   res.writeHead(statusCode, {
     'Content-Type': 'application/json; charset=utf-8',
     'Content-Length': Buffer.byteLength(responseBody),
+    ...CORS_HEADERS,
   });
   res.end(responseBody);
 }
@@ -26,10 +34,19 @@ export function sendBinary(res, statusCode, buffer, contentType) {
   res.writeHead(statusCode, {
     'Content-Type': contentType,
     'Content-Length': buffer.length,
+    ...CORS_HEADERS,
   });
   res.end(buffer);
 }
 
+export function sendCorsPreflight(res) {
+  res.writeHead(204, {
+    'Content-Length': 0,
+    ...CORS_HEADERS,
+  });
+  res.end();
+}
+
 export function normalizePath(pathname) {
   return pathname.replace(/^\/api(?=\/v1\/)/, '');
 }

src/jtl-server.js

@@ -1,21 +1,12 @@
 import { endpoints } from './endpoints/index.js';
-import { normalizePath, readBody, sendJson } from './http.js';
+import { normalizePath, readBody, sendCorsPreflight, sendJson } from './http.js';
 
 function buildConfig(config = {}) {
   return {
     authToken: config.authToken || process.env.AUTH_TOKEN || 'df40ad2067954646abb0499548a52241',
-    certificateFingerprint:
-      config.certificateFingerprint ||
-      process.env.CERTIFICATE_FINGERPRINT ||
-      'BC2114CF407A42724BEEF417960F76DCBF9DE879',
-    certificateSerialNumber:
-      config.certificateSerialNumber ||
-      process.env.CERTIFICATE_SERIAL_NUMBER ||
-      '00BFC8BEACDB981B165210EF111CB9D3',
-    serverFingerprint:
-      config.serverFingerprint ||
-      process.env.SERVER_FINGERPRINT ||
-      '39-6D-BD-DE-F3-5C-5A-EA-C2-19-CF-EB-A7-A9-58-2F-20-3F-20-F7-3D-E6-CA-8E-AE-FD-28-30-37-A6-45-AE',
+    certificateFingerprint: config.certificateFingerprint || '',
+    certificateSerialNumber: config.certificateSerialNumber || '',
+    serverFingerprint: config.serverFingerprint || '',
     mandantId: config.mandantId || process.env.MANDANT_ID || '1',
     mandantName: config.mandantName || process.env.MANDANT_NAME || 'eB-Standard',
     mandantDatabase: config.mandantDatabase || process.env.MANDANT_DATABASE || 'eazybusiness',
@@ -27,6 +18,10 @@ export function createJtlPosServer(pairingStore, config = {}) {
   const routes = new Map(endpoints.map((endpoint) => [`${endpoint.method} ${endpoint.path}`, endpoint]));
 
   async function handle(req, res) {
+    if (req.method === 'OPTIONS') {
+      return sendCorsPreflight(res);
+    }
+
     const url = new URL(req.url, 'https://localhost');
     const pathname = normalizePath(url.pathname);
     const routeKey = `${req.method} ${pathname}`;

src/queries/category-count.js

@@ -1,4 +1,6 @@
 import sql from 'mssql';
+import { isDemoMode } from '../demo/mode.js';
+import { getDemoCategoryCount } from '../demo/store.js';
 import { getPool } from '../db.js';
 import { CATEGORY_TREE_CTE, categoryTreeRequest, getRootCategoryId } from './category-tree.js';
 
@@ -12,6 +14,10 @@ WHERE k.kKategorie IN (SELECT kKategorie FROM CategoryTree)
 `;
 
 export async function getCategoryCount({ cursor = 0, rootCategoryId = getRootCategoryId() } = {}) {
+  if (isDemoMode()) {
+    return getDemoCategoryCount({ cursor });
+  }
+
   const result = await categoryTreeRequest(getPool(), rootCategoryId)
     .input('cursor', sql.BigInt, cursor)
     .query(CATEGORY_COUNT_SQL);

src/queries/category-list.js

@@ -1,4 +1,6 @@
 import sql from 'mssql';
+import { isDemoMode } from '../demo/mode.js';
+import { getDemoCategoryList } from '../demo/store.js';
 import { getPool } from '../db.js';
 import { CATEGORY_TREE_CTE, categoryTreeRequest, getRootCategoryId } from './category-tree.js';
 
@@ -26,6 +28,10 @@ ORDER BY lastChanged ASC;
 `;
 
 export async function getCategoryList({ cursor = 0, limit = 20, rootCategoryId = getRootCategoryId() } = {}) {
+  if (isDemoMode()) {
+    return getDemoCategoryList({ cursor, limit });
+  }
+
   const result = await categoryTreeRequest(getPool(), rootCategoryId)
     .input('cursor', sql.BigInt, cursor)
     .input('limit', sql.Int, limit)

src/queries/composite-product-count.js

@@ -1,4 +1,6 @@
 import sql from 'mssql';
+import { isDemoMode } from '../demo/mode.js';
+import { getDemoCompositeProductCount } from '../demo/store.js';
 import { getPool } from '../db.js';
 import { getActiveShopId } from '../shop.js';
 
@@ -16,6 +18,10 @@ WHERE a.kStueckliste <> 0
 `;
 
 export async function getCompositeProductCount({ cursor = 0 } = {}) {
+  if (isDemoMode()) {
+    return getDemoCompositeProductCount({ cursor });
+  }
+
   const result = await getPool()
     .request()
     .input('cursor', sql.BigInt, cursor)

src/queries/composite-product-list.js

@@ -1,4 +1,6 @@
 import sql from 'mssql';
+import { isDemoMode } from '../demo/mode.js';
+import { getDemoCompositeProductList } from '../demo/store.js';
 import { getPool } from '../db.js';
 import { getActiveShopId } from '../shop.js';
 
@@ -21,6 +23,10 @@ ORDER BY lastChanged ASC;
 `;
 
 export async function getCompositeProductList({ cursor = 0, limit = 100 } = {}) {
+  if (isDemoMode()) {
+    return getDemoCompositeProductList({ cursor, limit });
+  }
+
   const result = await getPool()
     .request()
     .input('cursor', sql.BigInt, cursor)

src/queries/create-order.js

@@ -1,4 +1,6 @@
 import sql from 'mssql';
+import { isDemoMode } from '../demo/mode.js';
+import { createDemoOrder } from '../demo/store.js';
 import { getPool } from '../db.js';
 import { getActiveShopId, getActiveShopSubshopId } from '../shop.js';
 import { deliverOrder } from './delivery/index.js';
@@ -653,6 +655,10 @@ async function insertPayment(transaction, kAuftrag, payment, order, orderDate, z
 }
 
 export async function createOrder(order) {
+  if (isDemoMode()) {
+    return createDemoOrder(order);
+  }
+
   const kPosAuftrag = Number.parseInt(order.externalId, 10);
   const externalOrderNumber = order.externalOrderNumber || '';
   if (Number.isInteger(kPosAuftrag) && kPosAuftrag > 0) {

src/queries/customer-groups.js

@@ -1,4 +1,10 @@
 import sql from 'mssql';
+import { isDemoMode } from '../demo/mode.js';
+import {
+  getDemoCustomerGroupCount,
+  getDemoCustomerGroupIds,
+  getDemoCustomerGroupList,
+} from '../demo/store.js';
 import { getPool } from '../db.js';
 
 const CUSTOMER_GROUP_IDS_SQL = `
@@ -26,11 +32,19 @@ WHERE CONVERT(BIGINT, bRowversion) > @cursor;
 `;
 
 export async function getCustomerGroupIds() {
+  if (isDemoMode()) {
+    return getDemoCustomerGroupIds();
+  }
+
   const result = await getPool().request().query(CUSTOMER_GROUP_IDS_SQL);
   return result.recordset.map((row) => row.kKundenGruppe);
 }
 
 export async function getCustomerGroupList({ cursor = 0 } = {}) {
+  if (isDemoMode()) {
+    return getDemoCustomerGroupList({ cursor });
+  }
+
   const result = await getPool().request().input('cursor', sql.BigInt, cursor).query(CUSTOMER_GROUP_LIST_SQL);
 
   return result.recordset.map((row) => ({
@@ -43,6 +57,10 @@ export async function getCustomerGroupList({ cursor = 0 } = {}) {
 }
 
 export async function getCustomerGroupCount({ cursor = 0 } = {}) {
+  if (isDemoMode()) {
+    return getDemoCustomerGroupCount({ cursor });
+  }
+
   const result = await getPool().request().input('cursor', sql.BigInt, cursor).query(CUSTOMER_GROUP_COUNT_SQL);
   return result.recordset[0]?.CustomerGroupCount ?? 0;
 }

src/queries/deleted-entity-count.js

@@ -1,4 +1,6 @@
 import sql from 'mssql';
+import { isDemoMode } from '../demo/mode.js';
+import { getDemoDeletedEntityCount } from '../demo/store.js';
 import { getPool } from '../db.js';
 
 const DELETED_ENTITY_COUNT_SQL = `
@@ -8,6 +10,10 @@ WHERE CONVERT(BIGINT, vDeletedEntity.bLastChanged) > @cursor;
 `;
 
 export async function getDeletedEntityCount({ cursor = 0 } = {}) {
+  if (isDemoMode()) {
+    return getDemoDeletedEntityCount({ cursor });
+  }
+
   const result = await getPool()
     .request()
     .input('cursor', sql.BigInt, cursor)

src/queries/deleted-entity-list.js

@@ -1,4 +1,6 @@
 import sql from 'mssql';
+import { isDemoMode } from '../demo/mode.js';
+import { getDemoDeletedEntityList } from '../demo/store.js';
 import { getPool } from '../db.js';
 
 const DELETED_ENTITY_LIST_SQL = `
@@ -12,6 +14,10 @@ ORDER BY lastChanged ASC;
 `;
 
 export async function getDeletedEntityList({ cursor = 0, limit = 600 } = {}) {
+  if (isDemoMode()) {
+    return getDemoDeletedEntityList({ cursor, limit });
+  }
+
   const result = await getPool()
     .request()
     .input('cursor', sql.BigInt, cursor)

src/queries/image.js

@@ -1,4 +1,6 @@
 import sql from 'mssql';
+import { isDemoMode } from '../demo/mode.js';
+import { getDemoImageByHash } from '../demo/store.js';
 import { getPool } from '../db.js';
 
 const IMAGE_BY_HASH_SQL = `
@@ -24,6 +26,10 @@ function contentTypeFor(cQuelle) {
 }
 
 export async function getImageByHash(hash, size) {
+  if (isDemoMode()) {
+    return getDemoImageByHash(hash);
+  }
+
   const result = await getPool().request().input('hash', sql.NVarChar, hash).query(IMAGE_BY_HASH_SQL);
 
   const row = result.recordset[0];

src/queries/max-order-id.js

@@ -1,4 +1,6 @@
 import sql from 'mssql';
+import { isDemoMode } from '../demo/mode.js';
+import { getDemoMaxOrderIdCount } from '../demo/store.js';
 import { getPool } from '../db.js';
 import { getActiveShopSubshopId } from '../shop.js';
 
@@ -9,6 +11,10 @@ WHERE kShopSubShop = @kShopSubShop;
 `;
 
 export async function getMaxOrderIdCount() {
+  if (isDemoMode()) {
+    return getDemoMaxOrderIdCount();
+  }
+
   const kShopSubShop = getActiveShopSubshopId();
   if (!kShopSubShop) {
     return 0;

src/queries/product-count.js

@@ -1,4 +1,6 @@
 import sql from 'mssql';
+import { isDemoMode } from '../demo/mode.js';
+import { getDemoProductCount } from '../demo/store.js';
 import { getPool } from '../db.js';
 import { CATEGORY_TREE_CTE, categoryTreeRequest, getRootCategoryId } from './category-tree.js';
 
@@ -22,6 +24,10 @@ WHERE a.cAktiv = 'Y'
 `;
 
 export async function getProductCount({ cursor = 0, rootCategoryId = getRootCategoryId() } = {}) {
+  if (isDemoMode()) {
+    return getDemoProductCount({ cursor });
+  }
+
   const result = await categoryTreeRequest(getPool(), rootCategoryId)
     .input('cursor', sql.BigInt, cursor)
     .query(PRODUCT_COUNT_SQL);

src/queries/product-list.js

@@ -1,4 +1,6 @@
 import sql from 'mssql';
+import { isDemoMode } from '../demo/mode.js';
+import { getDemoProductList } from '../demo/store.js';
 import { getPool } from '../db.js';
 import { getCustomerGroupIds } from './customer-groups.js';
 import { getProductAttributes } from './product-attributes.js';
@@ -93,6 +95,10 @@ function grossPrice(netPrice, taxRate) {
 }
 
 export async function getProductList({ cursor = 0, limit = 20 } = {}) {
+  if (isDemoMode()) {
+    return getDemoProductList({ cursor, limit });
+  }
+
   const pool = getPool();
 
   const [productResult, customerGroupIds] = await Promise.all([