First version of Gekata

server.js

@@ -0,0 +1,56 @@
+const express = require('express');
+const { chromium } = require('playwright');
+
+const app = express();
+const port = process.env.PORT || 3000;
+
+app.use(express.json());
+
+function extractDomain(url) {
+  try {
+    return new URL(url).hostname;
+  } catch {
+    return null;
+  }
+}
+
+app.get('/domains', async (req, res) => {
+  const { domain } = req.query;
+  if (!domain) {
+    res.status(400).json({ error: '"domain" query parameter is required' });
+    return;
+  }
+
+  const url = `https://${domain}`;
+  const seenDomains = new Set();
+
+  try {
+    const browser = await chromium.launch({
+      args: ['--no-sandbox', '--disable-setuid-sandbox']
+    });
+    const context = await browser.newContext();
+    const page = await context.newPage();
+
+    page.on('request', request => {
+      const d = extractDomain(request.url());
+      if (d) seenDomains.add(d);
+    });
+
+    await page.goto(url, { waitUntil: 'load', timeout: 30000 });
+    await browser.close();
+
+    // Фильтрация доменов
+    const filteredDomains = Array.from(seenDomains).filter(d =>
+      !d.includes('doubleclick') && !d.includes('google')
+    ).sort();
+
+    res.json({ domains: filteredDomains });
+  } catch (e) {
+    res.status(500).json({ error: e.message || 'Internal server error' });
+  }
+});
+
+app.listen(port, () => {
+  console.log(`Domain scanner service listening on port ${port}`);
+});
+