initial commit

Dockerfile

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+FROM node:20-alpine
+WORKDIR /app
+COPY package.json .
+RUN npm install --production
+COPY src/ ./src/
+VOLUME ["/data"]
+CMD ["node", "src/index.js"]

README.md

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+# noctura newsbot — Setup
+
+## 1. Bot-User anlegen (falls noch nicht getan)
+
+```bash
+docker exec -it synapse register_new_matrix_user -u newsbot -p sicherespasswort --no-admin -c /data/homeserver.yaml http://localhost:8008
+```
+
+## 2. Access Token holen
+
+```bash
+curl -s -X POST http://localhost:8008/_matrix/client/v3/login \
+  -H "Content-Type: application/json" \
+  -d '{"type":"m.login.password","user":"newsbot","password":"sicherespasswort"}' \
+  | grep -o '"access_token":"[^"]*"'
+```
+
+Den Token aus der Ausgabe kopieren.
+
+## 3. Room ID herausfinden
+
+Im Matrix Client (z.B. Element):
+- In den gewünschten Room gehen
+- Raumeinstellungen → Erweitert → Room ID kopieren (beginnt mit !)
+
+Den Bot in den Room einladen:
+```
+/invite @newsbot:noctura.dev
+```
+
+## 4. docker-compose.yml anpassen
+
+```yaml
+MATRIX_ACCESS_TOKEN: "slt_DEIN_TOKEN"
+MATRIX_ROOM_ID: "!xxxxx:noctura.dev"
+```
+
+## 5. Bot starten
+
+```bash
+cd /opt/noctura/newsbot
+mkdir data
+docker compose up -d --build
+```
+
+## 6. Test-Digest sofort senden
+
+```bash
+# TEST_RUN kurz auf true setzen
+docker compose run --rm -e TEST_RUN=true newsbot
+```
+
+## Feeds anpassen
+
+Einfach in `src/feeds.js` neue Feeds hinzufügen:
+
+```js
+{
+  category: "🎮 Gaming",
+  url: "https://www.rockpapershotgun.com/feed",
+  name: "Rock Paper Shotgun"
+}
+```
+
+## Cron-Zeiten
+
+| Wert | Bedeutung |
+|------|-----------|
+| `0 8 * * *`   | Täglich 08:00 Uhr |
+| `0 8,18 * * *`| Täglich 08:00 und 18:00 Uhr |
+| `0 8 * * 1-5` | Nur Montag–Freitag 08:00 Uhr |

docker-compose.yml

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+services:
+  newsbot:
+    build: .
+    container_name: newsbot
+    restart: unless-stopped
+    volumes:
+      - ./data:/data
+    environment:
+      # Matrix Homeserver (intern via Docker Host)
+      MATRIX_HOMESERVER: "http://host.docker.internal:8008"
+
+      # Access Token des newsbot Users (siehe README)
+      MATRIX_ACCESS_TOKEN: "DEIN_ACCESS_TOKEN_HIER"
+
+      # Room ID des Ziel-Rooms (beginnt mit !)
+      MATRIX_ROOM_ID: "!ROOM_ID_HIER:noctura.dev"
+
+      # Wann soll der Digest gesendet werden? (Cron-Format)
+      # Standard: täglich 08:00 Uhr
+      CRON_SCHEDULE: "0 8 * * *"
+
+      # Auf 'true' setzen um beim Start sofort einen Test zu senden
+      TEST_RUN: "false"
+
+    extra_hosts:
+      - "host.docker.internal:host-gateway"

feeds.js

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+// ============================================================
+//  feeds.js — RSS-Feed Konfiguration
+//  Einfach neue Feeds hinzufügen oder Kategorien anpassen
+// ============================================================
+
+const FEEDS = [
+  // --- KI & Machine Learning ---
+  {
+    category: "🤖 KI & Machine Learning",
+    url: "https://feeds.feedburner.com/blogspot/gJZg",
+    name: "Google AI Blog"
+  },
+  {
+    category: "🤖 KI & Machine Learning",
+    url: "https://openai.com/blog/rss.xml",
+    name: "OpenAI Blog"
+  },
+  {
+    category: "🤖 KI & Machine Learning",
+    url: "https://www.anthropic.com/rss.xml",
+    name: "Anthropic"
+  },
+  {
+    category: "🤖 KI & Machine Learning",
+    url: "https://huggingface.co/blog/feed.xml",
+    name: "Hugging Face"
+  },
+
+  // --- IT Security ---
+  {
+    category: "🔐 IT Security",
+    url: "https://feeds.feedburner.com/TheHackersNews",
+    name: "The Hacker News"
+  },
+  {
+    category: "🔐 IT Security",
+    url: "https://www.bleepingcomputer.com/feed/",
+    name: "BleepingComputer"
+  },
+  {
+    category: "🔐 IT Security",
+    url: "https://krebsonsecurity.com/feed/",
+    name: "Krebs on Security"
+  },
+
+  // --- Smart Home & IoT ---
+  {
+    category: "🏠 Smart Home & IoT",
+    url: "https://www.home-assistant.io/atom.xml",
+    name: "Home Assistant"
+  },
+  {
+    category: "🏠 Smart Home & IoT",
+    url: "https://www.heise.de/thema/smart-home.rss",
+    name: "Heise Smart Home"
+  },
+
+  // --- Web Development ---
+  {
+    category: "⟨/⟩ Web Development",
+    url: "https://css-tricks.com/feed/",
+    name: "CSS-Tricks"
+  },
+  {
+    category: "⟨/⟩ Web Development",
+    url: "https://dev.to/feed",
+    name: "DEV.to"
+  },
+  {
+    category: "⟨/⟩ Web Development",
+    url: "https://github.blog/feed/",
+    name: "GitHub Blog"
+  },
+
+  // --- Self-hosting & Linux ---
+  {
+    category: "🖥️ Self-hosting & Linux",
+    url: "https://selfh.st/articles/index.xml",
+    name: "selfh.st"
+  },
+  {
+    category: "🖥️ Self-hosting & Linux",
+    url: "https://www.heise.de/open/news-atom.xml",
+    name: "Heise Open"
+  },
+];
+
+// Wie viele Artikel pro Feed maximal gepostet werden
+const MAX_ITEMS_PER_FEED = 2;
+
+// Wie viele Stunden rückwirkend Artikel berücksichtigt werden
+const HOURS_LOOKBACK = 24;
+
+module.exports = { FEEDS, MAX_ITEMS_PER_FEED, HOURS_LOOKBACK };

formatter.js

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+// ============================================================
+//  formatter.js — Formatiert News-Nachrichten für Matrix
+// ============================================================
+
+function formatDailyDigest(grouped) {
+  const date = new Date().toLocaleDateString('de-DE', {
+    weekday: 'long', year: 'numeric', month: 'long', day: 'numeric'
+  });
+
+  // Plain text version
+  let plain = `📰 Täglicher News-Digest — ${date}\n`;
+  plain += '─'.repeat(50) + '\n\n';
+
+  // HTML version (für Matrix Clients die Formatting unterstützen)
+  let html = `<h3>📰 Täglicher News-Digest</h3>`;
+  html += `<p><em>${date}</em></p><hr>`;
+
+  for (const [category, items] of Object.entries(grouped)) {
+    if (items.length === 0) continue;
+
+    plain += `${category}\n${'─'.repeat(30)}\n`;
+    html  += `<h4>${category}</h4><ul>`;
+
+    for (const item of items) {
+      const source = item.feedName ? ` [${item.feedName}]` : '';
+      plain += `• ${item.title}${source}\n  ${item.link}\n\n`;
+      html  += `<li><a href="${item.link}"><strong>${item.title}</strong></a>`;
+      if (item.feedName) html += ` <em>(${item.feedName})</em>`;
+      if (item.summary)  html += `<br><small>${item.summary}</small>`;
+      html  += `</li>`;
+    }
+
+    plain += '\n';
+    html  += `</ul>`;
+  }
+
+  const totalItems = Object.values(grouped).flat().length;
+  plain += `\n📊 ${totalItems} Artikel heute · Powered by noctura newsbot`;
+  html  += `<p><small>📊 ${totalItems} Artikel heute · Powered by noctura newsbot</small></p>`;
+
+  return { plain, html };
+}
+
+function formatNoNews() {
+  return {
+    plain: '📰 Heute keine neuen Artikel in den konfigurierten Feeds.',
+    html:  '<p>📰 Heute keine neuen Artikel in den konfigurierten Feeds.</p>'
+  };
+}
+
+function formatError(feedName, error) {
+  return `⚠️ Feed-Fehler [${feedName}]: ${error.message}`;
+}
+
+module.exports = { formatDailyDigest, formatNoNews, formatError };

index.js

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+// ============================================================
+//  index.js — noctura newsbot
+//  Matrix Bot der täglich News-Feeds postet
+// ============================================================
+
+const { MatrixClient, SimpleFsStorageProvider, AutojoinRoomsMixin } = require('matrix-bot-sdk');
+const RSSParser  = require('rss-parser');
+const cron       = require('node-cron');
+const { FEEDS, MAX_ITEMS_PER_FEED, HOURS_LOOKBACK } = require('./feeds');
+const { formatDailyDigest, formatNoNews, formatError } = require('./formatter');
+
+// ---- Konfiguration aus Umgebungsvariablen ----
+const HOMESERVER   = process.env.MATRIX_HOMESERVER   || 'http://localhost:8008';
+const ACCESS_TOKEN = process.env.MATRIX_ACCESS_TOKEN;
+const ROOM_ID      = process.env.MATRIX_ROOM_ID;
+const CRON_SCHEDULE= process.env.CRON_SCHEDULE        || '0 8 * * *'; // täglich 08:00 Uhr
+
+if (!ACCESS_TOKEN) { console.error('❌ MATRIX_ACCESS_TOKEN fehlt!'); process.exit(1); }
+if (!ROOM_ID)      { console.error('❌ MATRIX_ROOM_ID fehlt!');      process.exit(1); }
+
+// ---- Matrix Client Setup ----
+const storage = new SimpleFsStorageProvider('/data/bot-storage.json');
+const client  = new MatrixClient(HOMESERVER, ACCESS_TOKEN, storage);
+AutojoinRoomsMixin.setupOnClient(client);
+
+const parser = new RSSParser({
+  timeout: 10000,
+  headers: { 'User-Agent': 'noctura-newsbot/1.0' }
+});
+
+// ---- RSS Feed abrufen ----
+async function fetchFeed(feed) {
+  try {
+    const parsed = await parser.parseURL(feed.url);
+    const cutoff = Date.now() - HOURS_LOOKBACK * 60 * 60 * 1000;
+
+    return parsed.items
+      .filter(item => {
+        const pubDate = item.pubDate ? new Date(item.pubDate).getTime() : Date.now();
+        return pubDate >= cutoff;
+      })
+      .slice(0, MAX_ITEMS_PER_FEED)
+      .map(item => ({
+        title:    item.title?.trim() || 'Kein Titel',
+        link:     item.link  || item.guid || '',
+        summary:  item.contentSnippet
+                    ? item.contentSnippet.slice(0, 120).trim() + '…'
+                    : '',
+        feedName: feed.name,
+        category: feed.category,
+        pubDate:  item.pubDate
+      }));
+  } catch (err) {
+    console.error(`⚠️  Feed-Fehler [${feed.name}]: ${err.message}`);
+    return [];
+  }
+}
+
+// ---- Alle Feeds abrufen & gruppieren ----
+async function fetchAllNews() {
+  console.log('🔍 Feeds werden abgerufen...');
+  const results = await Promise.allSettled(FEEDS.map(fetchFeed));
+
+  const grouped = {};
+  results.forEach((result, i) => {
+    if (result.status !== 'fulfilled') return;
+    const items = result.value;
+    items.forEach(item => {
+      if (!grouped[item.category]) grouped[item.category] = [];
+      grouped[item.category].push(item);
+    });
+  });
+
+  return grouped;
+}
+
+// ---- Nachricht in Matrix Room senden ----
+async function sendToMatrix(plain, html) {
+  await client.sendMessage(ROOM_ID, {
+    msgtype: 'm.text',
+    body:    plain,
+    format:  'org.matrix.custom.html',
+    formatted_body: html
+  });
+  console.log('✅ Digest erfolgreich gesendet!');
+}
+
+// ---- Haupt-Job ----
+async function runDigest() {
+  console.log(`\n⏰ [${new Date().toISOString()}] Täglicher Digest wird erstellt...`);
+  try {
+    const grouped = await fetchAllNews();
+    const totalItems = Object.values(grouped).flat().length;
+    console.log(`📊 ${totalItems} Artikel gefunden`);
+
+    if (totalItems === 0) {
+      const { plain, html } = formatNoNews();
+      await sendToMatrix(plain, html);
+    } else {
+      const { plain, html } = formatDailyDigest(grouped);
+      await sendToMatrix(plain, html);
+    }
+  } catch (err) {
+    console.error('❌ Fehler beim Digest:', err);
+  }
+}
+
+// ---- Bot starten ----
+async function main() {
+  console.log('🚀 noctura newsbot startet...');
+  console.log(`   Homeserver:  ${HOMESERVER}`);
+  console.log(`   Room:        ${ROOM_ID}`);
+  console.log(`   Cron:        ${CRON_SCHEDULE}`);
+
+  await client.start();
+  console.log('✅ Matrix Client verbunden!');
+
+  // Cron Job registrieren
+  cron.schedule(CRON_SCHEDULE, runDigest, { timezone: 'Europe/Berlin' });
+  console.log(`📅 Cron Job aktiv: ${CRON_SCHEDULE} (Europe/Berlin)`);
+
+  // Beim Start einmal sofort ausführen wenn TEST_RUN gesetzt
+  if (process.env.TEST_RUN === 'true') {
+    console.log('🧪 TEST_RUN aktiv – einmalig sofort ausführen...');
+    await runDigest();
+  }
+}
+
+main().catch(err => {
+  console.error('❌ Bot-Fehler:', err);
+  process.exit(1);
+});

package.json

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+{
+  "name": "noctura-newsbot",
+  "version": "1.0.0",
+  "description": "Matrix News Bot für noctura.dev",
+  "main": "src/index.js",
+  "scripts": {
+    "start": "node src/index.js"
+  },
+  "dependencies": {
+    "matrix-bot-sdk": "^0.7.1",
+    "rss-parser": "^3.13.0",
+    "node-cron": "^3.0.3"
+  }
+}