Analyse: Skript nur für aktive Websites, leeres Skript sonst, siteKey in der Skript-URL

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

analytics/src/assets.js

@@ -9,7 +9,10 @@ import crypto from 'node:crypto';
 const DEFAULT_DIR = join(dirname(fileURLToPath(import.meta.url)), '..', 'client', 'dist');
 const FILES = { '/a/w.js': 'w.js', '/a/h.js': 'h.js' };
 
-export function createAssets({ distDir = DEFAULT_DIR, log = console } = {}) {
+const RE_KEY = /^[a-z0-9]{16,40}$/;
+const EMPTY = Buffer.from('/* WEBklar Analyse: aus */\n');
+
+export function createAssets({ distDir = DEFAULT_DIR, log = console, isActive = () => true } = {}) {
   const assets = new Map();
   for (const [path, file] of Object.entries(FILES)) {
     try {
@@ -28,6 +31,25 @@ export function createAssets({ distDir = DEFAULT_DIR, log = console } = {}) {
       res.end();
       return true;
     }
+    if (pathname === '/a/w.js') {
+      let key = '';
+      try { key = new URL(req.url, 'http://x').searchParams.get('s') || ''; } catch { /* leer */ }
+      let on = false;
+      try { on = RE_KEY.test(key) && !!isActive(key); } catch (e) { log.error('Analytics: isActive:', e.message); }
+      if (!on) {
+        res.writeHead(200, {
+          'Content-Type': 'text/javascript; charset=utf-8',
+          'Cache-Control': 'public, max-age=60',
+          Vary: 'Accept-Encoding',
+          'X-Content-Type-Options': 'nosniff',
+          'Cross-Origin-Resource-Policy': 'cross-origin',
+          'Access-Control-Allow-Origin': '*',
+          'Content-Length': EMPTY.length,
+        });
+        res.end(req.method === 'HEAD' ? undefined : EMPTY);
+        return true;
+      }
+    }
     const a = assets.get(pathname);
     if (!a) {
       res.writeHead(503, { 'Content-Type': 'application/json', 'Cache-Control': 'no-store' });

analytics/src/server.js

@@ -61,7 +61,7 @@ function validateSite(b) {
 function createHandlerServer({ config, db, role, geo, salt, now, onSitesChanged }) {
   const ingest = role === 'public' ? createIngest({ db, geo, salt: salt || createSalt({ now }), now }) : null;
   const heat = role === 'public' ? createHeat({ db, config, now }) : null;
-  const assets = role === 'public' ? createAssets({ distDir: config.distDir }) : null;
+  const assets = role === 'public' ? createAssets({ distDir: config.distDir, isActive: (k) => !!db.prepare('SELECT 1 FROM sites WHERE siteKey = ? AND active = 1').get(k) }) : null;
   const clock = now || Date.now;
   const server = http.createServer(async (req, res) => {
     try {

analytics/test/assets.test.js

@@ -11,8 +11,13 @@ import { createPublicServer, createAdminServer } from '../src/server.js';
 
 const DIST = new URL('../client/dist/', import.meta.url);
 
+const KEY = 'abcdef0123456789abcd';
+const OFFKEY = 'offoffoffoffoffoffoff';
 async function start(config = {}) {
-  const server = createPublicServer({ config, db: openDb(':memory:') });
+  const db = openDb(':memory:');
+  db.prepare('INSERT INTO sites (siteKey, projectId, domains, active) VALUES (?,?,?,1)').run(KEY, 'p', '[]');
+  db.prepare('INSERT INTO sites (siteKey, projectId, domains, active) VALUES (?,?,?,0)').run(OFFKEY, 'p', '[]');
+  const server = createPublicServer({ config, db });
   await new Promise((r) => server.listen(0, '127.0.0.1', r));
   return { base: `http://127.0.0.1:${server.address().port}`, close: () => server.close() };
 }
@@ -35,7 +40,7 @@ for (const file of ['w.js', 'h.js']) {
     const s = await start();
     const want = readFileSync(new URL(file, DIST));
     const etag = `"${crypto.createHash('sha256').update(want).digest('hex')}"`;
-    const id = await raw(s.base, `/a/${file}`, { 'Accept-Encoding': 'identity' });
+    const id = await raw(s.base, `/a/${file}${file === 'w.js' ? `?s=${KEY}` : ''}`, { 'Accept-Encoding': 'identity' });
     assert.equal(id.status, 200);
     assert.deepEqual(id.body, want);
     assert.equal(id.headers['content-type'], 'text/javascript; charset=utf-8');
@@ -46,7 +51,7 @@ for (const file of ['w.js', 'h.js']) {
     assert.equal(id.headers['cross-origin-resource-policy'], 'cross-origin');
     assert.equal(id.headers['access-control-allow-origin'], '*');
     assert.equal(id.headers['content-encoding'], undefined);
-    const gz = await raw(s.base, `/a/${file}`, { 'Accept-Encoding': 'gzip, deflate' });
+    const gz = await raw(s.base, `/a/${file}${file === 'w.js' ? `?s=${KEY}` : ''}`, { 'Accept-Encoding': 'gzip, deflate' });
     assert.equal(gz.status, 200);
     assert.equal(gz.headers['content-encoding'], 'gzip');
     assert.equal(gz.headers.etag, etag);
@@ -58,13 +63,13 @@ for (const file of ['w.js', 'h.js']) {
 
 test('ETag: 304 bei If-None-Match, 200 bei anderem Wert', async () => {
   const s = await start();
-  const first = await raw(s.base, '/a/w.js');
+  const first = await raw(s.base, `/a/w.js?s=${KEY}`);
-  const hit = await raw(s.base, '/a/w.js', { 'If-None-Match': first.headers.etag });
+  const hit = await raw(s.base, `/a/w.js?s=${KEY}`, { 'If-None-Match': first.headers.etag });
   assert.equal(hit.status, 304);
   assert.equal(hit.body.length, 0);
   assert.equal(hit.headers.etag, first.headers.etag);
   assert.equal(hit.headers['cache-control'], 'public, max-age=3600');
-  assert.equal((await raw(s.base, '/a/w.js', { 'If-None-Match': '"anders"' })).status, 200);
+  assert.equal((await raw(s.base, `/a/w.js?s=${KEY}`, { 'If-None-Match': '"anders"' })).status, 200);
   s.close();
 });
 
@@ -102,3 +107,42 @@ test('fehlende dist-Datei: 503 nur für diesen Pfad, deutscher Fehler im Log', a
   assert.equal((await fetch(`${s.base}/a/h.js`)).status, 503);
   s.close();
 });
+
+const EMPTY = '/* WEBklar Analyse: aus */\n';
+for (const [name, q] of [['unbekannter Schlüssel', '?s=unbekannt0123456789ab'], ['ungültiger Schlüssel', '?s=ABC'], ['ohne s', ''], ['ausgeschaltete Website', `?s=${OFFKEY}`]]) {
+  test(`w.js ${name}: leeres Skript`, async () => {
+    const s = await start();
+    const r = await raw(s.base, `/a/w.js${q}`, { 'Accept-Encoding': 'gzip' });
+    assert.equal(r.status, 200);
+    assert.equal(r.body.toString(), EMPTY);
+    assert.equal(r.headers['content-type'], 'text/javascript; charset=utf-8');
+    assert.equal(r.headers['cache-control'], 'public, max-age=60');
+    assert.equal(r.headers['x-content-type-options'], 'nosniff');
+    assert.equal(r.headers['cross-origin-resource-policy'], 'cross-origin');
+    assert.equal(r.headers['access-control-allow-origin'], '*');
+    assert.equal(r.headers.vary, 'Accept-Encoding');
+    assert.equal(r.headers['content-encoding'], undefined);
+    assert.equal(r.headers.etag, undefined);
+    s.close();
+  });
+}
+
+test('Ende-zu-Ende: Ausschalten wirkt sofort, Einschalten ebenfalls', async () => {
+  const db = openDb(':memory:');
+  const pub = createPublicServer({ config: {}, db });
+  const adm = createAdminServer({ config: { adminToken: 't' }, db });
+  await Promise.all([pub, adm].map((x) => new Promise((r) => x.listen(0, '127.0.0.1', r))));
+  const pb = `http://127.0.0.1:${pub.address().port}`;
+  const ab = `http://127.0.0.1:${adm.address().port}`;
+  const put = (active) => fetch(`${ab}/a/admin/sites/${KEY}`, { method: 'PUT', headers: { Authorization: 'Bearer t', 'Content-Type': 'application/json' },
+    body: JSON.stringify({ projectId: 'p', domains: ['abc.project.webklar.com'], active }) });
+  const get = async () => (await raw(pb, `/a/w.js?s=${KEY}`)).body.toString();
+  assert.equal(await get(), EMPTY);
+  assert.equal((await put(true)).status, 200);
+  assert.notEqual(await get(), EMPTY);
+  assert.equal((await put(false)).status, 200);
+  assert.equal(await get(), EMPTY);
+  assert.equal((await put(true)).status, 200);
+  assert.notEqual(await get(), EMPTY);
+  pub.close(); adm.close();
+});

runner/src/analytics-inject.js

@@ -17,7 +17,7 @@ export const isValidBase = (b) => typeof b === 'string' && /^https:\/\/[^\s"'<>]
 
 export function scriptTag(analytics, baseUrl) {
   // Attributwerte nur aus geprüften Eingaben (Regex), daher ohne Maskierung sicher.
-  return `<script data-wk-analytics src="${baseUrl}w.js" data-site="${analytics.siteKey}" data-color="${analytics.color}" defer></script>`;
+  return `<script data-wk-analytics src="${baseUrl}w.js?s=${analytics.siteKey}" data-site="${analytics.siteKey}" data-color="${analytics.color}" defer></script>`;
 }
 
 // Spannen, in denen Marker nichts zu suchen haben: Kommentare, script, style, textarea, template (ohne Verschachtelungs-Logik).

runner/test/analytics-inject.test.js

@@ -11,7 +11,7 @@ import { createJobs } from '../src/jobs.js';
 const BASE = 'https://project.webklar.com/a/';
 const KEY = 'abcdef0123456789abcd';
 const A = (o = {}) => ({ siteKey: KEY, color: '#2b6cb0', privacy: { company: 'Muster GmbH', address: 'Weg 1, 12345 Ort', email: 'info@muster.de' }, ...o });
-const TAG = `<script data-wk-analytics src="${BASE}w.js" data-site="${KEY}" data-color="#2b6cb0" defer></script>`;
+const TAG = `<script data-wk-analytics src="${BASE}w.js?s=${KEY}" data-site="${KEY}" data-color="#2b6cb0" defer></script>`;
 const dir = () => mkdtempSync(join(tmpdir(), 'inj-'));
 const put = (d, f, c) => { mkdirSync(join(d, f, '..'), { recursive: true }); writeFileSync(join(d, f), c); };
 const get = (d, f) => readFileSync(join(d, f), 'utf8');