Merge remote-tracking branch 'refs/remotes/origin/main'

- Added `analytics_visibility` column to `rooms` table to control who can view analytics data.
- Updated analytics routes to check visibility settings before allowing access and export of analytics data.
- Implemented export functionality for analytics in CSV, XLSX, and PDF formats.
- Enhanced `AnalyticsList` component to include export options for analytics entries.
- Updated room detail page to allow setting analytics visibility when creating or editing rooms.
- Added translations for new analytics visibility options and export messages.

Dockerfile

@@ -1,28 +1,31 @@
-# ── Stage 1: Build frontend ──────────────────────────────────────────────────
-FROM node:20-bullseye-slim AS builder
+# ── Stage 1: Install dependencies ────────────────────────────────────────────
+FROM node:22-trixie-slim AS deps
 
 WORKDIR /app
 
-# Install build tools and sqlite headers for native modules
+ENV DEBIAN_FRONTEND=noninteractive
+
+# Install build tools for native modules (better-sqlite3, pdfkit)
 RUN apt-get update && apt-get install -y --no-install-recommends \
-		python3 build-essential libsqlite3-dev ca-certificates \
+		python3 build-essential libsqlite3-dev \
 	&& rm -rf /var/lib/apt/lists/*
 
 COPY package.json package-lock.json* ./
+
+# Install all dependencies (including dev for vite build)
 RUN npm ci
 
+# ── Stage 2: Build frontend ─────────────────────────────────────────────────
+FROM deps AS builder
+
 COPY . .
 RUN npm run build
-# Produce production node_modules (compile native modules here for the target arch)
-RUN npm ci --omit=dev && npm cache clean --force
 
-# ── Stage 2: Production image ───────────────────────────────────────────────
+# Prune dev dependencies in-place (avoids a second npm ci)
+RUN npm prune --omit=dev
 
-FROM node:20-bullseye-slim
-
-# Allow forcing build from source (useful when prebuilt binaries are not available)
-ARG BUILD_FROM_SOURCE=false
-ENV npm_config_build_from_source=${BUILD_FROM_SOURCE}
+# ── Stage 3: Production image ───────────────────────────────────────────────
+FROM node:22-trixie-slim
 
 WORKDIR /app
 

package.json

@@ -1,7 +1,7 @@
 {
   "name": "redlight",
   "private": true,
-  "version": "2.0.0",
+  "version": "2.1.0",
   "license": "GPL-3.0-or-later",
   "type": "module",
   "scripts": {
@@ -14,11 +14,12 @@
   },
   "dependencies": {
     "axios": "^1.7.0",
-    "bcryptjs": "^2.4.3",
-    "better-sqlite3": "^11.0.0",
+    "bcryptjs": "^3.0.3",
+    "better-sqlite3": "^12.6.2",
     "concurrently": "^9.0.0",
     "cors": "^2.8.5",
-    "dotenv": "^16.4.0",
+    "dotenv": "^17.3.1",
+    "exceljs": "^4.4.0",
     "express": "^4.21.0",
     "express-rate-limit": "^7.5.1",
     "flatpickr": "^4.6.13",
@@ -27,7 +28,10 @@
     "lucide-react": "^0.460.0",
     "multer": "^2.1.0",
     "nodemailer": "^8.0.1",
+    "otpauth": "^9.5.0",
+    "pdfkit": "^0.17.2",
     "pg": "^8.18.0",
+    "qrcode": "^1.5.4",
     "rate-limit-redis": "^4.3.1",
     "react": "^18.3.0",
     "react-dom": "^18.3.0",
@@ -39,10 +43,10 @@
   "devDependencies": {
     "@types/react": "^18.3.0",
     "@types/react-dom": "^18.3.0",
-    "@vitejs/plugin-react": "^4.7.0",
+    "@vitejs/plugin-react": "^6.0.1",
     "autoprefixer": "^10.4.0",
     "postcss": "^8.4.0",
     "tailwindcss": "^3.4.0",
-    "vite": "^6.4.1"
+    "vite": "^8.0.0"
   }
 }

server/config/database.js

@@ -1,4 +1,4 @@
-import bcrypt from 'bcryptjs';
+import bcrypt from 'bcryptjs';
 import path from 'path';
 import { fileURLToPath } from 'url';
 import { log } from './logger.js';
@@ -802,6 +802,19 @@ export async function initDatabase() {
     `);
   }
 
+  // ── TOTP 2FA columns ──────────────────────────────────────────────────────
+  if (!(await db.columnExists('users', 'totp_secret'))) {
+    await db.exec('ALTER TABLE users ADD COLUMN totp_secret TEXT DEFAULT NULL');
+  }
+  if (!(await db.columnExists('users', 'totp_enabled'))) {
+    await db.exec('ALTER TABLE users ADD COLUMN totp_enabled INTEGER DEFAULT 0');
+  }
+
+  // ── Analytics visibility setting ────────────────────────────────────────
+  if (!(await db.columnExists('rooms', 'analytics_visibility'))) {
+    await db.exec("ALTER TABLE rooms ADD COLUMN analytics_visibility TEXT DEFAULT 'owner'");
+  }
+
   // ── Default admin (only on very first start) ────────────────────────────
   const adminAlreadySeeded = await db.get("SELECT value FROM settings WHERE key = 'admin_seeded'");
   if (!adminAlreadySeeded) {

server/middleware/auth.js

@@ -35,7 +35,7 @@ export async function authenticateToken(req, res, next) {
     }
 
     const db = getDb();
-    const user = await db.get('SELECT id, name, display_name, email, role, theme, language, avatar_color, avatar_image, email_verified, oauth_provider FROM users WHERE id = ?', [decoded.userId]);
+    const user = await db.get('SELECT id, name, display_name, email, role, theme, language, avatar_color, avatar_image, email_verified, oauth_provider, totp_enabled FROM users WHERE id = ?', [decoded.userId]);
     if (!user) {
       return res.status(401).json({ error: 'User not found' });
     }

server/routes/analytics.js

@@ -1,5 +1,7 @@
 import { Router } from 'express';
 import crypto from 'crypto';
+import ExcelJS from 'exceljs';
+import PDFDocument from 'pdfkit';
 import { getDb } from '../config/database.js';
 import { authenticateToken } from '../middleware/auth.js';
 import { log } from '../config/logger.js';
@@ -72,14 +74,17 @@ router.post('/callback/:uid', async (req, res) => {
 router.get('/room/:uid', authenticateToken, async (req, res) => {
   try {
     const db = getDb();
-    const room = await db.get('SELECT id, user_id FROM rooms WHERE uid = ?', [req.params.uid]);
+    const room = await db.get('SELECT id, user_id, analytics_visibility FROM rooms WHERE uid = ?', [req.params.uid]);
 
     if (!room) {
       return res.status(404).json({ error: 'Room not found' });
     }
 
-    // Check access: owner, shared, or admin
+    // Check access: owner, shared (if visibility allows), or admin
     if (room.user_id !== req.user.id && req.user.role !== 'admin') {
+      if (room.analytics_visibility !== 'shared') {
+        return res.status(403).json({ error: 'No permission to view analytics for this room' });
+      }
       const share = await db.get('SELECT id FROM room_shares WHERE room_id = ? AND user_id = ?', [room.id, req.user.id]);
       if (!share) {
         return res.status(403).json({ error: 'No permission to view analytics for this room' });
@@ -134,4 +139,171 @@ router.delete('/:id', authenticateToken, async (req, res) => {
   }
 });
 
+// Helper: extract flat attendee rows from analytics entry
+function extractRows(entry) {
+  const data = typeof entry.data === 'string' ? JSON.parse(entry.data) : entry.data;
+  const attendees = data?.data?.attendees || [];
+  const meetingName = data?.data?.metadata?.meeting_name || entry.meeting_name || '';
+  const meetingDuration = data?.data?.duration || 0;
+  const meetingStart = data?.data?.start || '';
+  const meetingFinish = data?.data?.finish || '';
+
+  return attendees.map(a => ({
+    meetingName,
+    meetingStart,
+    meetingFinish,
+    meetingDuration,
+    name: a.name || '',
+    role: a.moderator ? 'Moderator' : 'Viewer',
+    duration: a.duration || 0,
+    talkTime: a.engagement?.talk_time || 0,
+    chats: a.engagement?.chats || 0,
+    talks: a.engagement?.talks || 0,
+    raiseHand: a.engagement?.raisehand || 0,
+    emojis: a.engagement?.emojis || 0,
+    pollVotes: a.engagement?.poll_votes || 0,
+  }));
+}
+
+const COLUMNS = [
+  { header: 'Meeting', key: 'meetingName', width: 25 },
+  { header: 'Start', key: 'meetingStart', width: 20 },
+  { header: 'End', key: 'meetingFinish', width: 20 },
+  { header: 'Meeting Duration (s)', key: 'meetingDuration', width: 18 },
+  { header: 'Name', key: 'name', width: 25 },
+  { header: 'Role', key: 'role', width: 12 },
+  { header: 'Duration (s)', key: 'duration', width: 14 },
+  { header: 'Talk Time (s)', key: 'talkTime', width: 14 },
+  { header: 'Chats', key: 'chats', width: 8 },
+  { header: 'Talks', key: 'talks', width: 8 },
+  { header: 'Raise Hand', key: 'raiseHand', width: 12 },
+  { header: 'Emojis', key: 'emojis', width: 8 },
+  { header: 'Poll Votes', key: 'pollVotes', width: 10 },
+];
+
+// GET /api/analytics/:id/export/:format - Export a single analytics entry (csv, xlsx, pdf)
+router.get('/:id/export/:format', authenticateToken, async (req, res) => {
+  try {
+    const format = req.params.format;
+    if (!['csv', 'xlsx', 'pdf'].includes(format)) {
+      return res.status(400).json({ error: 'Unsupported format. Use csv, xlsx, or pdf.' });
+    }
+
+    const db = getDb();
+    const entry = await db.get(
+      `SELECT la.*, r.user_id, r.analytics_visibility
+       FROM learning_analytics_data la
+       JOIN rooms r ON la.room_id = r.id
+       WHERE la.id = ?`,
+      [req.params.id]
+    );
+
+    if (!entry) {
+      return res.status(404).json({ error: 'Analytics entry not found' });
+    }
+
+    if (entry.user_id !== req.user.id && req.user.role !== 'admin') {
+      if (entry.analytics_visibility !== 'shared') {
+        return res.status(403).json({ error: 'No permission to export this entry' });
+      }
+      const share = await db.get('SELECT id FROM room_shares WHERE room_id = ? AND user_id = ?', [entry.room_id, req.user.id]);
+      if (!share) {
+        return res.status(403).json({ error: 'No permission to export this entry' });
+      }
+    }
+
+    const rows = extractRows(entry);
+    const safeName = (entry.meeting_name || 'analytics').replace(/[^a-zA-Z0-9_-]/g, '_');
+
+    if (format === 'csv') {
+      const header = COLUMNS.map(c => c.header).join(',');
+      const csvRows = rows.map(r =>
+        COLUMNS.map(c => {
+          const val = r[c.key];
+          if (typeof val === 'string' && (val.includes(',') || val.includes('"') || val.includes('\n'))) {
+            return '"' + val.replace(/"/g, '""') + '"';
+          }
+          return val;
+        }).join(',')
+      );
+      const csv = [header, ...csvRows].join('\n');
+      res.setHeader('Content-Type', 'text/csv; charset=utf-8');
+      res.setHeader('Content-Disposition', `attachment; filename="${safeName}.csv"`);
+      return res.send('\uFEFF' + csv); // BOM for Excel UTF-8
+    }
+
+    if (format === 'xlsx') {
+      const workbook = new ExcelJS.Workbook();
+      const sheet = workbook.addWorksheet('Analytics');
+      sheet.columns = COLUMNS;
+      rows.forEach(r => sheet.addRow(r));
+      // Style header row
+      sheet.getRow(1).font = { bold: true };
+      sheet.getRow(1).fill = { type: 'pattern', pattern: 'solid', fgColor: { argb: 'FFE0E0E0' } };
+
+      res.setHeader('Content-Type', 'application/vnd.openxmlformats-officedocument.spreadsheetml.sheet');
+      res.setHeader('Content-Disposition', `attachment; filename="${safeName}.xlsx"`);
+      await workbook.xlsx.write(res);
+      return res.end();
+    }
+
+    if (format === 'pdf') {
+      const doc = new PDFDocument({ size: 'A4', layout: 'landscape', margin: 30 });
+      res.setHeader('Content-Type', 'application/pdf');
+      res.setHeader('Content-Disposition', `attachment; filename="${safeName}.pdf"`);
+      doc.pipe(res);
+
+      // Title
+      doc.fontSize(16).text(entry.meeting_name || 'Learning Analytics', { align: 'center' });
+      doc.moveDown(0.5);
+
+      // Table header columns for PDF (subset for readability)
+      const pdfCols = [
+        { header: 'Name', key: 'name', width: 120 },
+        { header: 'Role', key: 'role', width: 65 },
+        { header: 'Duration (s)', key: 'duration', width: 75 },
+        { header: 'Talk Time (s)', key: 'talkTime', width: 75 },
+        { header: 'Chats', key: 'chats', width: 50 },
+        { header: 'Talks', key: 'talks', width: 50 },
+        { header: 'Raise Hand', key: 'raiseHand', width: 65 },
+        { header: 'Emojis', key: 'emojis', width: 50 },
+        { header: 'Poll Votes', key: 'pollVotes', width: 60 },
+      ];
+
+      const startX = doc.x;
+      let y = doc.y;
+
+      // Header
+      doc.fontSize(8).font('Helvetica-Bold');
+      pdfCols.forEach((col, i) => {
+        const x = startX + pdfCols.slice(0, i).reduce((s, c) => s + c.width, 0);
+        doc.text(col.header, x, y, { width: col.width, align: 'left' });
+      });
+      y += 14;
+      doc.moveTo(startX, y).lineTo(startX + pdfCols.reduce((s, c) => s + c.width, 0), y).stroke();
+      y += 4;
+
+      // Rows
+      doc.font('Helvetica').fontSize(8);
+      rows.forEach(r => {
+        if (y > doc.page.height - 50) {
+          doc.addPage();
+          y = 30;
+        }
+        pdfCols.forEach((col, i) => {
+          const x = startX + pdfCols.slice(0, i).reduce((s, c) => s + c.width, 0);
+          doc.text(String(r[col.key]), x, y, { width: col.width, align: 'left' });
+        });
+        y += 14;
+      });
+
+      doc.end();
+      return;
+    }
+  } catch (err) {
+    log.server.error(`Export analytics error: ${err.message}`);
+    res.status(500).json({ error: 'Error exporting analytics data' });
+  }
+});
+
 export default router;

server/routes/auth.js

@@ -1,4 +1,4 @@
-import { Router } from 'express';
+import { Router } from 'express';
 import bcrypt from 'bcryptjs';
 import jwt from 'jsonwebtoken';
 import { v4 as uuidv4 } from 'uuid';
@@ -7,6 +7,7 @@ import path from 'path';
 import { fileURLToPath } from 'url';
 import { rateLimit } from 'express-rate-limit';
 import { RedisStore } from 'rate-limit-redis';
+import * as OTPAuth from 'otpauth';
 import { getDb } from '../config/database.js';
 import redis from '../config/redis.js';
 import { authenticateToken, generateToken, getBaseUrl } from '../middleware/auth.js';
@@ -99,6 +100,15 @@ const resendVerificationLimiter = rateLimit({
   store: makeRedisStore('rl:resend:'),
 });
 
+const twoFaLimiter = rateLimit({
+  windowMs: 15 * 60 * 1000,
+  max: 10,
+  standardHeaders: true,
+  legacyHeaders: false,
+  message: { error: 'Too many 2FA attempts. Please try again later.' },
+  store: makeRedisStore('rl:2fa:'),
+});
+
 const __filename = fileURLToPath(import.meta.url);
 const __dirname = path.dirname(__filename);
 const uploadsDir = path.join(__dirname, '..', '..', 'uploads', 'avatars');
@@ -352,8 +362,14 @@ router.post('/login', loginLimiter, async (req, res) => {
       return res.status(403).json({ error: 'Email address not yet verified. Please check your inbox.', needsVerification: true });
     }
 
+    // ── 2FA check ────────────────────────────────────────────────────────
+    if (user.totp_enabled) {
+      const tempToken = jwt.sign({ userId: user.id, purpose: '2fa' }, JWT_SECRET, { expiresIn: '5m' });
+      return res.json({ requires2FA: true, tempToken });
+    }
+
     const token = generateToken(user.id);
-    const { password_hash, verification_token, verification_token_expires, verification_resend_at, ...safeUser } = user;
+    const { password_hash, verification_token, verification_token_expires, verification_resend_at, totp_secret, ...safeUser } = user;
 
     res.json({ token, user: safeUser });
   } catch (err) {
@@ -362,6 +378,53 @@ router.post('/login', loginLimiter, async (req, res) => {
   }
 });
 
+// POST /api/auth/login/2fa - Verify TOTP code and complete login
+router.post('/login/2fa', twoFaLimiter, async (req, res) => {
+  try {
+    const { tempToken, code } = req.body;
+    if (!tempToken || !code) {
+      return res.status(400).json({ error: 'Token and code are required' });
+    }
+
+    let decoded;
+    try {
+      decoded = jwt.verify(tempToken, JWT_SECRET);
+    } catch {
+      return res.status(401).json({ error: 'Invalid or expired token. Please log in again.' });
+    }
+
+    if (decoded.purpose !== '2fa') {
+      return res.status(401).json({ error: 'Invalid token' });
+    }
+
+    const db = getDb();
+    const user = await db.get('SELECT * FROM users WHERE id = ?', [decoded.userId]);
+    if (!user || !user.totp_enabled || !user.totp_secret) {
+      return res.status(401).json({ error: 'Invalid token' });
+    }
+
+    const totp = new OTPAuth.TOTP({
+      secret: OTPAuth.Secret.fromBase32(user.totp_secret),
+      algorithm: 'SHA1',
+      digits: 6,
+      period: 30,
+    });
+
+    const delta = totp.validate({ token: code.replace(/\s/g, ''), window: 1 });
+    if (delta === null) {
+      return res.status(401).json({ error: 'Invalid 2FA code' });
+    }
+
+    const token = generateToken(user.id);
+    const { password_hash, verification_token, verification_token_expires, verification_resend_at, totp_secret, ...safeUser } = user;
+
+    res.json({ token, user: safeUser });
+  } catch (err) {
+    log.auth.error(`2FA login error: ${err.message}`);
+    res.status(500).json({ error: '2FA verification failed' });
+  }
+});
+
 // POST /api/auth/logout - revoke JWT via DragonflyDB blacklist
 router.post('/logout', authenticateToken, async (req, res) => {
   try {
@@ -670,4 +733,125 @@ router.get('/avatar/:filename', (req, res) => {
   fs.createReadStream(filepath).pipe(res);
 });
 
+// ── 2FA Management ──────────────────────────────────────────────────────────
+
+// GET /api/auth/2fa/status
+router.get('/2fa/status', authenticateToken, async (req, res) => {
+  const db = getDb();
+  const user = await db.get('SELECT totp_enabled FROM users WHERE id = ?', [req.user.id]);
+  res.json({ enabled: !!user?.totp_enabled });
+});
+
+// POST /api/auth/2fa/setup - Generate TOTP secret + provisioning URI
+router.post('/2fa/setup', authenticateToken, twoFaLimiter, async (req, res) => {
+  try {
+    const db = getDb();
+    const user = await db.get('SELECT totp_enabled FROM users WHERE id = ?', [req.user.id]);
+    if (user?.totp_enabled) {
+      return res.status(400).json({ error: '2FA is already enabled' });
+    }
+
+    const secret = new OTPAuth.Secret({ size: 20 });
+
+    // Load app name from branding settings
+    const brandingSetting = await db.get("SELECT value FROM settings WHERE key = 'branding'");
+    let issuer = 'Redlight';
+    if (brandingSetting?.value) {
+      try { issuer = JSON.parse(brandingSetting.value).appName || issuer; } catch {}
+    }
+
+    const totp = new OTPAuth.TOTP({
+      issuer,
+      label: req.user.email,
+      algorithm: 'SHA1',
+      digits: 6,
+      period: 30,
+      secret,
+    });
+
+    // Store the secret (but don't enable yet — user must verify first)
+    await db.run('UPDATE users SET totp_secret = ?, updated_at = CURRENT_TIMESTAMP WHERE id = ?', [secret.base32, req.user.id]);
+
+    res.json({ secret: secret.base32, uri: totp.toString() });
+  } catch (err) {
+    log.auth.error(`2FA setup error: ${err.message}`);
+    res.status(500).json({ error: '2FA setup failed' });
+  }
+});
+
+// POST /api/auth/2fa/enable - Verify code and activate 2FA
+router.post('/2fa/enable', authenticateToken, twoFaLimiter, async (req, res) => {
+  try {
+    const { code } = req.body;
+    if (!code) {
+      return res.status(400).json({ error: 'Code is required' });
+    }
+
+    const db = getDb();
+    const user = await db.get('SELECT totp_secret, totp_enabled FROM users WHERE id = ?', [req.user.id]);
+    if (!user?.totp_secret) {
+      return res.status(400).json({ error: 'Please run 2FA setup first' });
+    }
+    if (user.totp_enabled) {
+      return res.status(400).json({ error: '2FA is already enabled' });
+    }
+
+    const totp = new OTPAuth.TOTP({
+      secret: OTPAuth.Secret.fromBase32(user.totp_secret),
+      algorithm: 'SHA1',
+      digits: 6,
+      period: 30,
+    });
+
+    const delta = totp.validate({ token: code.replace(/\s/g, ''), window: 1 });
+    if (delta === null) {
+      return res.status(401).json({ error: 'Invalid code. Please try again.' });
+    }
+
+    await db.run('UPDATE users SET totp_enabled = 1, updated_at = CURRENT_TIMESTAMP WHERE id = ?', [req.user.id]);
+    res.json({ enabled: true, message: '2FA has been enabled' });
+  } catch (err) {
+    log.auth.error(`2FA enable error: ${err.message}`);
+    res.status(500).json({ error: '2FA could not be enabled' });
+  }
+});
+
+// POST /api/auth/2fa/disable - Disable 2FA (requires password + TOTP code)
+router.post('/2fa/disable', authenticateToken, twoFaLimiter, async (req, res) => {
+  try {
+    const { password, code } = req.body;
+    if (!password || !code) {
+      return res.status(400).json({ error: 'Password and code are required' });
+    }
+
+    const db = getDb();
+    const user = await db.get('SELECT password_hash, totp_secret, totp_enabled FROM users WHERE id = ?', [req.user.id]);
+    if (!user?.totp_enabled) {
+      return res.status(400).json({ error: '2FA is not enabled' });
+    }
+
+    if (!bcrypt.compareSync(password, user.password_hash)) {
+      return res.status(401).json({ error: 'Invalid password' });
+    }
+
+    const totp = new OTPAuth.TOTP({
+      secret: OTPAuth.Secret.fromBase32(user.totp_secret),
+      algorithm: 'SHA1',
+      digits: 6,
+      period: 30,
+    });
+
+    const delta = totp.validate({ token: code.replace(/\s/g, ''), window: 1 });
+    if (delta === null) {
+      return res.status(401).json({ error: 'Invalid 2FA code' });
+    }
+
+    await db.run('UPDATE users SET totp_enabled = 0, totp_secret = NULL, updated_at = CURRENT_TIMESTAMP WHERE id = ?', [req.user.id]);
+    res.json({ enabled: false, message: '2FA has been disabled' });
+  } catch (err) {
+    log.auth.error(`2FA disable error: ${err.message}`);
+    res.status(500).json({ error: '2FA could not be disabled' });
+  }
+});
+
 export default router;

server/routes/federation.js

@@ -40,7 +40,7 @@ export function wellKnownHandler(req, res) {
         federation_api: '/api/federation',
         public_key: getPublicKey(),
         software: 'Redlight',
-        version: '2.0.0',
+        version: '2.1.0',
     });
 }
 

server/routes/rooms.js

@@ -245,6 +245,7 @@ router.put('/:uid', authenticateToken, async (req, res) => {
       guest_access,
       moderator_code,
       learning_analytics,
+      analytics_visibility,
     } = req.body;
 
     // M12: field length limits (same as create)
@@ -285,6 +286,7 @@ router.put('/:uid', authenticateToken, async (req, res) => {
         guest_access = COALESCE(?, guest_access),
         moderator_code = ?,
         learning_analytics = COALESCE(?, learning_analytics),
+        analytics_visibility = COALESCE(?, analytics_visibility),
         updated_at = CURRENT_TIMESTAMP
       WHERE uid = ?
     `, [
@@ -300,6 +302,7 @@ router.put('/:uid', authenticateToken, async (req, res) => {
       guest_access !== undefined ? (guest_access ? 1 : 0) : null,
       moderator_code !== undefined ? (moderator_code || null) : room.moderator_code,
       learning_analytics !== undefined ? (learning_analytics ? 1 : 0) : null,
+      analytics_visibility && ['owner', 'shared'].includes(analytics_visibility) ? analytics_visibility : null,
       req.params.uid,
     ]);
 

src/components/AnalyticsList.jsx

@@ -1,12 +1,13 @@
-import { BarChart3, Trash2, Clock, Users, MessageSquare, Video, Mic, ChevronDown, ChevronUp, Hand, BarChart2 } from 'lucide-react';
+import { BarChart3, Trash2, Clock, Users, MessageSquare, Video, Mic, ChevronDown, ChevronUp, Hand, BarChart2, Download } from 'lucide-react';
 import { useState } from 'react';
 import api from '../services/api';
 import { useLanguage } from '../contexts/LanguageContext';
 import toast from 'react-hot-toast';
 
-export default function AnalyticsList({ analytics, onRefresh }) {
+export default function AnalyticsList({ analytics, onRefresh, isOwner = true }) {
   const [loading, setLoading] = useState({});
   const [expanded, setExpanded] = useState({});
+  const [exportMenu, setExportMenu] = useState({});
   const { t, language } = useLanguage();
 
   const formatDate = (dateStr) => {
@@ -49,6 +50,34 @@ export default function AnalyticsList({ analytics, onRefresh }) {
     setExpanded(prev => ({ ...prev, [id]: !prev[id] }));
   };
 
+  const toggleExportMenu = (id) => {
+    setExportMenu(prev => ({ ...prev, [id]: !prev[id] }));
+  };
+
+  const handleExport = async (id, format) => {
+    setExportMenu(prev => ({ ...prev, [id]: false }));
+    setLoading(prev => ({ ...prev, [id]: 'exporting' }));
+    try {
+      const response = await api.get(`/analytics/${id}/export/${format}`, { responseType: 'blob' });
+      const disposition = response.headers['content-disposition'];
+      const match = disposition?.match(/filename="?([^"]+)"?/);
+      const filename = match?.[1] || `analytics.${format}`;
+      const url = window.URL.createObjectURL(response.data);
+      const a = document.createElement('a');
+      a.href = url;
+      a.download = filename;
+      document.body.appendChild(a);
+      a.click();
+      a.remove();
+      window.URL.revokeObjectURL(url);
+      toast.success(t('analytics.exportSuccess'));
+    } catch {
+      toast.error(t('analytics.exportFailed'));
+    } finally {
+      setLoading(prev => ({ ...prev, [id]: null }));
+    }
+  };
+
   // Extract user summary from BBB learning analytics callback data
   // Payload: { meeting_id, data: { duration, start, finish, attendees: [{ name, moderator, duration, engagement: { chats, talks, raisehand, emojis, poll_votes, talk_time } }] } }
   const getUserSummary = (data) => {
@@ -124,6 +153,38 @@ export default function AnalyticsList({ analytics, onRefresh }) {
               </div>
 
               <div className="flex items-center gap-1 flex-shrink-0">
+                <div className="relative">
+                  <button
+                    onClick={() => toggleExportMenu(entry.id)}
+                    disabled={loading[entry.id] === 'exporting'}
+                    className="p-2 rounded-lg hover:bg-th-hover text-th-text-s hover:text-th-text transition-colors"
+                    title={t('analytics.export')}
+                  >
+                    <Download size={16} />
+                  </button>
+                  {exportMenu[entry.id] && (
+                    <div className="absolute right-0 top-full mt-1 bg-th-bg border border-th-border rounded-lg shadow-lg z-10 min-w-[120px] py-1">
+                      <button
+                        onClick={() => handleExport(entry.id, 'csv')}
+                        className="w-full text-left px-3 py-1.5 text-sm text-th-text hover:bg-th-hover transition-colors"
+                      >
+                        CSV
+                      </button>
+                      <button
+                        onClick={() => handleExport(entry.id, 'xlsx')}
+                        className="w-full text-left px-3 py-1.5 text-sm text-th-text hover:bg-th-hover transition-colors"
+                      >
+                        Excel (.xlsx)
+                      </button>
+                      <button
+                        onClick={() => handleExport(entry.id, 'pdf')}
+                        className="w-full text-left px-3 py-1.5 text-sm text-th-text hover:bg-th-hover transition-colors"
+                      >
+                        PDF
+                      </button>
+                    </div>
+                  )}
+                </div>
                 <button
                   onClick={() => toggleExpand(entry.id)}
                   className="p-2 rounded-lg hover:bg-th-hover text-th-text-s hover:text-th-text transition-colors"
@@ -131,6 +192,7 @@ export default function AnalyticsList({ analytics, onRefresh }) {
                 >
                   {isExpanded ? <ChevronUp size={16} /> : <ChevronDown size={16} />}
                 </button>
+                {isOwner && (
                 <button
                   onClick={() => handleDelete(entry.id)}
                   disabled={loading[entry.id] === 'deleting'}
@@ -139,6 +201,7 @@ export default function AnalyticsList({ analytics, onRefresh }) {
                 >
                   <Trash2 size={16} />
                 </button>
+                )}
               </div>
             </div>
 

src/contexts/AuthContext.jsx

@@ -23,6 +23,16 @@ export function AuthProvider({ children }) {
 
   const login = useCallback(async (email, password) => {
     const res = await api.post('/auth/login', { email, password });
+    if (res.data.requires2FA) {
+      return { requires2FA: true, tempToken: res.data.tempToken };
+    }
+    localStorage.setItem('token', res.data.token);
+    setUser(res.data.user);
+    return res.data.user;
+  }, []);
+
+  const verify2FA = useCallback(async (tempToken, code) => {
+    const res = await api.post('/auth/login/2fa', { tempToken, code });
     localStorage.setItem('token', res.data.token);
     setUser(res.data.user);
     return res.data.user;
@@ -75,7 +85,7 @@ export function AuthProvider({ children }) {
   }, []);
 
   return (
-    <AuthContext.Provider value={{ user, loading, login, register, logout, loginWithOAuth, updateUser }}>
+    <AuthContext.Provider value={{ user, loading, login, verify2FA, register, logout, loginWithOAuth, updateUser }}>
       {children}
     </AuthContext.Provider>
   );

src/contexts/NotificationContext.jsx

@@ -49,14 +49,20 @@ export function NotificationProvider({ children }) {
   const { user } = useAuth();
   const [notifications, setNotifications] = useState([]);
   const [unreadCount, setUnreadCount] = useState(0);
+  const activeUserId = useRef(null);
   // Track seen IDs to detect genuinely new arrivals and show toasts
   const seenIds = useRef(new Set());
   const initialized = useRef(false);
 
   const fetch = useCallback(async () => {
-    if (!user) return;
+    const requestUserId = user?.id;
+    if (!requestUserId) return;
     try {
       const res = await api.get('/notifications');
+
+      // Ignore stale responses that arrived after logout or account switch.
+      if (activeUserId.current !== requestUserId) return;
+
       const incoming = res.data.notifications || [];
       setNotifications(incoming);
       setUnreadCount(res.data.unreadCount || 0);
@@ -92,10 +98,10 @@ export function NotificationProvider({ children }) {
     }
   }, [user]);
 
-  // Unlock audio playback on the first real user interaction.
-  // Browsers block audio from timer callbacks unless the element was previously
-  // "touched" inside a gesture handler — this one-time listener does exactly that.
+  // Unlock audio playback only for authenticated sessions.
+  // This avoids any audio interaction while logged out (e.g. anonymous/incognito tabs).
   useEffect(() => {
+    if (!user?.id) return;
     const events = ['click', 'keydown', 'pointerdown'];
     const handler = () => {
       unlockAudio();
@@ -103,10 +109,12 @@ export function NotificationProvider({ children }) {
     };
     events.forEach(e => window.addEventListener(e, handler, { once: true }));
     return () => events.forEach(e => window.removeEventListener(e, handler));
-  }, []);
+  }, [user?.id]);
 
   useEffect(() => {
+    activeUserId.current = user?.id ?? null;
     if (!user) {
+      _audioUnlocked = false;
       setNotifications([]);
       setUnreadCount(0);
       seenIds.current = new Set();

src/i18n/de.json

@@ -1,4 +1,4 @@
-{
+{
   "common": {
     "appName": "Redlight",
     "loading": "Laden...",
@@ -99,7 +99,15 @@
     "oauthError": "Anmeldung fehlgeschlagen",
     "oauthNoToken": "Kein Authentifizierungstoken erhalten.",
     "oauthLoginFailed": "Anmeldung konnte nicht abgeschlossen werden. Bitte versuche es erneut.",
-    "oauthRedirecting": "Du wirst angemeldet..."
+    "oauthRedirecting": "Du wirst angemeldet...",
+    "2fa": {
+      "title": "Zwei-Faktor-Authentifizierung",
+      "prompt": "Gib den 6-stelligen Code aus deiner Authenticator-App ein.",
+      "codeLabel": "Bestätigungscode",
+      "verify": "Bestätigen",
+      "verifyFailed": "Überprüfung fehlgeschlagen",
+      "backToLogin": "← Zurück zum Login"
+    }
   },
   "home": {
     "madeFor": "Made for BigBlueButton",
@@ -258,7 +266,11 @@
     "defaultWelcome": "Willkommen zum Meeting!",
     "analytics": "Lernanalyse",
     "enableAnalytics": "Lernanalyse aktivieren",
-    "enableAnalyticsHint": "Sammelt Engagement-Daten der Teilnehmer nach jedem Meeting."
+    "enableAnalyticsHint": "Sammelt Engagement-Daten der Teilnehmer nach jedem Meeting.",
+    "analyticsVisibility": "Wer kann die Analyse sehen?",
+    "analyticsOwnerOnly": "Nur Raumbesitzer",
+    "analyticsSharedUsers": "Alle geteilten Benutzer",
+    "analyticsVisibilityHint": "Legt fest, wer die Analysedaten dieses Raums einsehen und exportieren kann."
   },
   "recordings": {
     "title": "Aufnahmen",
@@ -295,7 +307,10 @@
     "duration": "Dauer",
     "meetingDuration": "Meeting-Dauer",
     "raiseHand": "Handheben",
-    "reactions": "Reaktionen"
+    "reactions": "Reaktionen",
+    "export": "Herunterladen",
+    "exportSuccess": "Download gestartet",
+    "exportFailed": "Fehler beim Herunterladen"
   },
   "settings": {
     "title": "Einstellungen",
@@ -327,6 +342,26 @@
     "passwordChangeFailed": "Fehler beim Ändern",
     "passwordMismatch": "Passwörter stimmen nicht überein",
     "selectLanguage": "Sprache auswählen",
+    "security": {
+      "title": "Sicherheit",
+      "subtitle": "Schütze dein Konto mit Zwei-Faktor-Authentifizierung (2FA). Nach der Aktivierung benötigst du sowohl dein Passwort als auch einen Code aus deiner Authenticator-App zum Anmelden.",
+      "statusEnabled": "2FA ist aktiviert",
+      "statusEnabledDesc": "Dein Konto ist durch Zwei-Faktor-Authentifizierung geschützt.",
+      "statusDisabled": "2FA ist nicht aktiviert",
+      "statusDisabledDesc": "Aktiviere die Zwei-Faktor-Authentifizierung für zusätzliche Sicherheit.",
+      "enable": "2FA aktivieren",
+      "disable": "2FA deaktivieren",
+      "enabled": "Zwei-Faktor-Authentifizierung aktiviert!",
+      "disabled": "Zwei-Faktor-Authentifizierung deaktiviert.",
+      "enableFailed": "2FA konnte nicht aktiviert werden",
+      "disableFailed": "2FA konnte nicht deaktiviert werden",
+      "setupFailed": "2FA-Einrichtung konnte nicht gestartet werden",
+      "scanQR": "Scanne diesen QR-Code mit deiner Authenticator-App (Google Authenticator, Authy, etc.).",
+      "manualKey": "Oder gib diesen Schlüssel manuell ein:",
+      "verifyCode": "Gib den Code aus deiner App zur Überprüfung ein",
+      "codeLabel": "6-stelliger Code",
+      "disableConfirm": "Gib dein Passwort und einen aktuellen 2FA-Code ein, um die Zwei-Faktor-Authentifizierung zu deaktivieren."
+    },
     "caldav": {
       "title": "CalDAV",
       "subtitle": "Verbinde deine Kalender-App (z. B. Apple Kalender, Thunderbird, DAVx⁵) über das CalDAV-Protokoll. Verwende deine E-Mail-Adresse und ein App-Token als Passwort.",

src/i18n/en.json

@@ -1,4 +1,4 @@
-{
+{
   "common": {
     "appName": "Redlight",
     "loading": "Loading...",
@@ -99,7 +99,15 @@
     "oauthError": "Authentication failed",
     "oauthNoToken": "No authentication token received.",
     "oauthLoginFailed": "Could not complete sign in. Please try again.",
-    "oauthRedirecting": "Signing you in..."
+    "oauthRedirecting": "Signing you in...",
+    "2fa": {
+      "title": "Two-Factor Authentication",
+      "prompt": "Enter the 6-digit code from your authenticator app.",
+      "codeLabel": "Verification code",
+      "verify": "Verify",
+      "verifyFailed": "Verification failed",
+      "backToLogin": "← Back to login"
+    }
   },
   "home": {
     "madeFor": "Made for BigBlueButton",
@@ -258,7 +266,11 @@
     "defaultWelcome": "Welcome to the meeting!",
     "analytics": "Learning Analytics",
     "enableAnalytics": "Enable learning analytics",
-    "enableAnalyticsHint": "Collects participant engagement data after each meeting."
+    "enableAnalyticsHint": "Collects participant engagement data after each meeting.",
+    "analyticsVisibility": "Who can see analytics?",
+    "analyticsOwnerOnly": "Room owner only",
+    "analyticsSharedUsers": "All shared users",
+    "analyticsVisibilityHint": "Controls who can view and export analytics data for this room."
   },
   "recordings": {
     "title": "Recordings",
@@ -295,7 +307,10 @@
     "duration": "Duration",
     "meetingDuration": "Meeting duration",
     "raiseHand": "Raise hand",
-    "reactions": "Reactions"
+    "reactions": "Reactions",
+    "export": "Download",
+    "exportSuccess": "Download started",
+    "exportFailed": "Error downloading data"
   },
   "settings": {
     "title": "Settings",
@@ -327,6 +342,26 @@
     "passwordChangeFailed": "Error changing password",
     "passwordMismatch": "Passwords do not match",
     "selectLanguage": "Select language",
+    "security": {
+      "title": "Security",
+      "subtitle": "Protect your account with two-factor authentication (2FA). After enabling, you will need both your password and a code from your authenticator app to sign in.",
+      "statusEnabled": "2FA is enabled",
+      "statusEnabledDesc": "Your account is protected with two-factor authentication.",
+      "statusDisabled": "2FA is not enabled",
+      "statusDisabledDesc": "Enable two-factor authentication for an extra layer of security.",
+      "enable": "Enable 2FA",
+      "disable": "Disable 2FA",
+      "enabled": "Two-factor authentication enabled!",
+      "disabled": "Two-factor authentication disabled.",
+      "enableFailed": "Could not enable 2FA",
+      "disableFailed": "Could not disable 2FA",
+      "setupFailed": "Could not start 2FA setup",
+      "scanQR": "Scan this QR code with your authenticator app (Google Authenticator, Authy, etc.).",
+      "manualKey": "Or enter this key manually:",
+      "verifyCode": "Enter the code from your app to verify",
+      "codeLabel": "6-digit code",
+      "disableConfirm": "Enter your password and a current 2FA code to disable two-factor authentication."
+    },
     "caldav": {
       "title": "CalDAV",
       "subtitle": "Connect your calendar app (e.g. Apple Calendar, Thunderbird, DAVx⁵) using the CalDAV protocol. Use your email address and an app token as password.",

src/pages/Login.jsx

@@ -1,9 +1,9 @@
-import { useState, useEffect } from 'react';
+import { useState, useEffect, useRef } from 'react';
 import { Link, useNavigate } from 'react-router-dom';
 import { useAuth } from '../contexts/AuthContext';
 import { useLanguage } from '../contexts/LanguageContext';
 import { useBranding } from '../contexts/BrandingContext';
-import { Mail, Lock, ArrowRight, Loader2, AlertTriangle, RefreshCw, LogIn } from 'lucide-react';
+import { Mail, Lock, ArrowRight, Loader2, AlertTriangle, RefreshCw, LogIn, ShieldCheck } from 'lucide-react';
 import BrandLogo from '../components/BrandLogo';
 import api from '../services/api';
 import toast from 'react-hot-toast';
@@ -15,7 +15,14 @@ export default function Login() {
   const [needsVerification, setNeedsVerification] = useState(false);
   const [resendCooldown, setResendCooldown] = useState(0);
   const [resending, setResending] = useState(false);
-  const { login } = useAuth();
+  // 2FA state
+  const [needs2FA, setNeeds2FA] = useState(false);
+  const [tempToken, setTempToken] = useState('');
+  const [totpCode, setTotpCode] = useState('');
+  const [verifying2FA, setVerifying2FA] = useState(false);
+  const totpInputRef = useRef(null);
+
+  const { login, verify2FA } = useAuth();
   const { t } = useLanguage();
   const { registrationMode, oauthEnabled, oauthDisplayName } = useBranding();
   const navigate = useNavigate();
@@ -26,6 +33,13 @@ export default function Login() {
     return () => clearTimeout(timer);
   }, [resendCooldown]);
 
+  // Auto-focus TOTP input when 2FA screen appears
+  useEffect(() => {
+    if (needs2FA && totpInputRef.current) {
+      totpInputRef.current.focus();
+    }
+  }, [needs2FA]);
+
   const handleResend = async () => {
     if (resendCooldown > 0 || resending) return;
     setResending(true);
@@ -48,7 +62,13 @@ export default function Login() {
     e.preventDefault();
     setLoading(true);
     try {
-      await login(email, password);
+      const result = await login(email, password);
+      if (result?.requires2FA) {
+        setTempToken(result.tempToken);
+        setNeeds2FA(true);
+        setLoading(false);
+        return;
+      }
       toast.success(t('auth.loginSuccess'));
       navigate('/dashboard');
     } catch (err) {
@@ -62,6 +82,27 @@ export default function Login() {
     }
   };
 
+  const handle2FASubmit = async (e) => {
+    e.preventDefault();
+    setVerifying2FA(true);
+    try {
+      await verify2FA(tempToken, totpCode);
+      toast.success(t('auth.loginSuccess'));
+      navigate('/dashboard');
+    } catch (err) {
+      toast.error(err.response?.data?.error || t('auth.2fa.verifyFailed'));
+      setTotpCode('');
+    } finally {
+      setVerifying2FA(false);
+    }
+  };
+
+  const handleBack = () => {
+    setNeeds2FA(false);
+    setTempToken('');
+    setTotpCode('');
+  };
+
   return (
     <div className="min-h-screen flex items-center justify-center p-6 relative overflow-hidden">
       {/* Animated background */}
@@ -81,111 +122,171 @@ export default function Login() {
             <BrandLogo size="lg" />
           </div>
 
-          <div className="mb-8">
-            <h2 className="text-2xl font-bold text-th-text mb-2">{t('auth.welcomeBack')}</h2>
-            <p className="text-th-text-s">
-              {t('auth.loginSubtitle')}
-            </p>
-          </div>
-
-          <form onSubmit={handleSubmit} className="space-y-5">
-            <div>
-              <label className="block text-sm font-medium text-th-text mb-1.5">{t('auth.email')}</label>
-              <div className="relative">
-                <Mail size={18} className="absolute left-3.5 top-1/2 -translate-y-1/2 text-th-text-s" />
-                <input
-                  type="email"
-                  value={email}
-                  onChange={e => setEmail(e.target.value)}
-                  className="input-field pl-11"
-                  placeholder={t('auth.emailPlaceholder')}
-                  required
-                />
+          {needs2FA ? (
+            <>
+              {/* 2FA verification step */}
+              <div className="mb-8 text-center">
+                <div className="inline-flex items-center justify-center w-14 h-14 rounded-2xl bg-th-accent/10 mb-4">
+                  <ShieldCheck size={28} className="text-th-accent" />
+                </div>
+                <h2 className="text-2xl font-bold text-th-text mb-2">{t('auth.2fa.title')}</h2>
+                <p className="text-th-text-s text-sm">
+                  {t('auth.2fa.prompt')}
+                </p>
               </div>
-            </div>
 
-            <div>
-              <label className="block text-sm font-medium text-th-text mb-1.5">{t('auth.password')}</label>
-              <div className="relative">
-                <Lock size={18} className="absolute left-3.5 top-1/2 -translate-y-1/2 text-th-text-s" />
-                <input
-                  type="password"
-                  value={password}
-                  onChange={e => setPassword(e.target.value)}
-                  className="input-field pl-11"
-                  placeholder={t('auth.passwordPlaceholder')}
-                  required
-                />
+              <form onSubmit={handle2FASubmit} className="space-y-5">
+                <div>
+                  <label className="block text-sm font-medium text-th-text mb-1.5">{t('auth.2fa.codeLabel')}</label>
+                  <div className="relative">
+                    <ShieldCheck size={18} className="absolute left-3.5 top-1/2 -translate-y-1/2 text-th-text-s" />
+                    <input
+                      ref={totpInputRef}
+                      type="text"
+                      inputMode="numeric"
+                      autoComplete="one-time-code"
+                      value={totpCode}
+                      onChange={e => setTotpCode(e.target.value.replace(/[^0-9\s]/g, '').slice(0, 7))}
+                      className="input-field pl-11 text-center text-lg tracking-[0.3em] font-mono"
+                      placeholder="000 000"
+                      required
+                      maxLength={7}
+                    />
+                  </div>
+                </div>
+
+                <button
+                  type="submit"
+                  disabled={verifying2FA || totpCode.replace(/\s/g, '').length < 6}
+                  className="btn-primary w-full py-3"
+                >
+                  {verifying2FA ? (
+                    <Loader2 size={18} className="animate-spin" />
+                  ) : (
+                    <>
+                      {t('auth.2fa.verify')}
+                      <ArrowRight size={18} />
+                    </>
+                  )}
+                </button>
+              </form>
+
+              <button
+                onClick={handleBack}
+                className="block mt-4 w-full text-center text-sm text-th-text-s hover:text-th-text transition-colors"
+              >
+                {t('auth.2fa.backToLogin')}
+              </button>
+            </>
+          ) : (
+            <>
+              <div className="mb-8">
+                <h2 className="text-2xl font-bold text-th-text mb-2">{t('auth.welcomeBack')}</h2>
+                <p className="text-th-text-s">
+                  {t('auth.loginSubtitle')}
+                </p>
               </div>
-            </div>
 
-            <button
-              type="submit"
-              disabled={loading}
-              className="btn-primary w-full py-3"
-            >
-              {loading ? (
-                <Loader2 size={18} className="animate-spin" />
-              ) : (
+              <form onSubmit={handleSubmit} className="space-y-5">
+                <div>
+                  <label className="block text-sm font-medium text-th-text mb-1.5">{t('auth.email')}</label>
+                  <div className="relative">
+                    <Mail size={18} className="absolute left-3.5 top-1/2 -translate-y-1/2 text-th-text-s" />
+                    <input
+                      type="email"
+                      value={email}
+                      onChange={e => setEmail(e.target.value)}
+                      className="input-field pl-11"
+                      placeholder={t('auth.emailPlaceholder')}
+                      required
+                    />
+                  </div>
+                </div>
+
+                <div>
+                  <label className="block text-sm font-medium text-th-text mb-1.5">{t('auth.password')}</label>
+                  <div className="relative">
+                    <Lock size={18} className="absolute left-3.5 top-1/2 -translate-y-1/2 text-th-text-s" />
+                    <input
+                      type="password"
+                      value={password}
+                      onChange={e => setPassword(e.target.value)}
+                      className="input-field pl-11"
+                      placeholder={t('auth.passwordPlaceholder')}
+                      required
+                    />
+                  </div>
+                </div>
+
+                <button
+                  type="submit"
+                  disabled={loading}
+                  className="btn-primary w-full py-3"
+                >
+                  {loading ? (
+                    <Loader2 size={18} className="animate-spin" />
+                  ) : (
+                    <>
+                      {t('auth.login')}
+                      <ArrowRight size={18} />
+                    </>
+                  )}
+                </button>
+              </form>
+
+              {oauthEnabled && (
                 <>
-                  {t('auth.login')}
-                  <ArrowRight size={18} />
+                  <div className="relative my-6">
+                    <div className="absolute inset-0 flex items-center">
+                      <div className="w-full border-t border-th-border" />
+                    </div>
+                    <div className="relative flex justify-center text-xs">
+                      <span className="px-3 bg-th-card/80 text-th-text-s">{t('auth.orContinueWith')}</span>
+                    </div>
+                  </div>
+                  <a
+                    href="/api/oauth/authorize"
+                    className="btn-secondary w-full py-3 flex items-center justify-center gap-2"
+                  >
+                    <LogIn size={18} />
+                    {t('auth.loginWithOAuth').replace('{provider}', oauthDisplayName || 'SSO')}
+                  </a>
                 </>
               )}
-            </button>
-          </form>
 
-          {oauthEnabled && (
-            <>
-              <div className="relative my-6">
-                <div className="absolute inset-0 flex items-center">
-                  <div className="w-full border-t border-th-border" />
+              {needsVerification && (
+                <div className="mt-4 p-4 rounded-xl bg-amber-500/10 border border-amber-500/30 space-y-2">
+                  <div className="flex items-start gap-2">
+                    <AlertTriangle size={16} className="text-amber-400 flex-shrink-0 mt-0.5" />
+                    <p className="text-sm text-amber-200">{t('auth.emailVerificationBanner')}</p>
+                  </div>
+                  <button
+                    onClick={handleResend}
+                    disabled={resendCooldown > 0 || resending}
+                    className="flex items-center gap-1.5 text-sm text-amber-400 hover:text-amber-300 underline underline-offset-2 transition-colors disabled:opacity-60 disabled:no-underline disabled:cursor-not-allowed"
+                  >
+                    <RefreshCw size={13} className={resending ? 'animate-spin' : ''} />
+                    {resendCooldown > 0
+                      ? t('auth.emailVerificationResendCooldown').replace('{seconds}', resendCooldown)
+                      : t('auth.emailVerificationResend')}
+                  </button>
                 </div>
-                <div className="relative flex justify-center text-xs">
-                  <span className="px-3 bg-th-card/80 text-th-text-s">{t('auth.orContinueWith')}</span>
-                </div>
-              </div>
-              <a
-                href="/api/oauth/authorize"
-                className="btn-secondary w-full py-3 flex items-center justify-center gap-2"
-              >
-                <LogIn size={18} />
-                {t('auth.loginWithOAuth').replace('{provider}', oauthDisplayName || 'SSO')}
-              </a>
+              )}
+
+              {registrationMode !== 'invite' && (
+                <p className="mt-6 text-center text-sm text-th-text-s">
+                  {t('auth.noAccount')}{' '}
+                  <Link to="/register" className="text-th-accent hover:underline font-medium">
+                    {t('auth.signUpNow')}
+                  </Link>
+                </p>
+              )}
+
+              <Link to="/" className="block mt-4 text-center text-sm text-th-text-s hover:text-th-text transition-colors">
+                {t('auth.backToHome')}
+              </Link>
             </>
           )}
-
-          {needsVerification && (
-            <div className="mt-4 p-4 rounded-xl bg-amber-500/10 border border-amber-500/30 space-y-2">
-              <div className="flex items-start gap-2">
-                <AlertTriangle size={16} className="text-amber-400 flex-shrink-0 mt-0.5" />
-                <p className="text-sm text-amber-200">{t('auth.emailVerificationBanner')}</p>
-              </div>
-              <button
-                onClick={handleResend}
-                disabled={resendCooldown > 0 || resending}
-                className="flex items-center gap-1.5 text-sm text-amber-400 hover:text-amber-300 underline underline-offset-2 transition-colors disabled:opacity-60 disabled:no-underline disabled:cursor-not-allowed"
-              >
-                <RefreshCw size={13} className={resending ? 'animate-spin' : ''} />
-                {resendCooldown > 0
-                  ? t('auth.emailVerificationResendCooldown').replace('{seconds}', resendCooldown)
-                  : t('auth.emailVerificationResend')}
-              </button>
-            </div>
-          )}
-
-          {registrationMode !== 'invite' && (
-            <p className="mt-6 text-center text-sm text-th-text-s">
-              {t('auth.noAccount')}{' '}
-              <Link to="/register" className="text-th-accent hover:underline font-medium">
-                {t('auth.signUpNow')}
-              </Link>
-            </p>
-          )}
-
-          <Link to="/" className="block mt-4 text-center text-sm text-th-text-s hover:text-th-text transition-colors">
-            {t('auth.backToHome')}
-          </Link>
         </div>
       </div>
     </div>

src/pages/RoomDetail.jsx

@@ -196,6 +196,7 @@ export default function RoomDetail() {
         guest_access: !!editRoom.guest_access,
         moderator_code: editRoom.moderator_code,
         learning_analytics: !!editRoom.learning_analytics,
+        analytics_visibility: editRoom.analytics_visibility || 'owner',
       });
       setRoom(res.data.room);
       setEditRoom(res.data.room);
@@ -344,7 +345,7 @@ export default function RoomDetail() {
   const tabs = [
     { id: 'overview', label: t('room.overview'), icon: Play },
     { id: 'recordings', label: t('room.recordings'), icon: FileVideo, count: recordings.length },
-    { id: 'analytics', label: t('room.analytics'), icon: BarChart3, count: analytics.length },
+    { id: 'analytics', label: t('room.analytics'), icon: BarChart3, count: analytics.length, hidden: !room.learning_analytics || (isShared && room.analytics_visibility !== 'shared') },
     ...(isOwner ? [{ id: 'settings', label: t('room.settings'), icon: Settings }] : []),
   ];
 
@@ -451,7 +452,7 @@ export default function RoomDetail() {
 
       {/* Tabs */}
       <div className="flex items-center gap-1 mb-6 border-b border-th-border">
-        {tabs.map(tab => (
+        {tabs.filter(tab => !tab.hidden).map(tab => (
           <button
             key={tab.id}
             onClick={() => setActiveTab(tab.id)}
@@ -543,7 +544,7 @@ export default function RoomDetail() {
       )}
 
       {activeTab === 'analytics' && (
-        <AnalyticsList analytics={analytics} onRefresh={fetchAnalytics} />
+        <AnalyticsList analytics={analytics} onRefresh={fetchAnalytics} isOwner={isOwner} />
       )}
 
       {activeTab === 'settings' && isOwner && editRoom && (
@@ -648,6 +649,20 @@ export default function RoomDetail() {
               />
               <span className="text-sm text-th-text">{t('room.enableAnalytics')}</span>
             </label>
+            {!!editRoom.learning_analytics && (
+              <div className="ml-7">
+                <label className="block text-xs font-medium text-th-text-s mb-1">{t('room.analyticsVisibility')}</label>
+                <select
+                  value={editRoom.analytics_visibility || 'owner'}
+                  onChange={e => setEditRoom({ ...editRoom, analytics_visibility: e.target.value })}
+                  className="input-field text-sm py-1.5 max-w-xs"
+                >
+                  <option value="owner">{t('room.analyticsOwnerOnly')}</option>
+                  <option value="shared">{t('room.analyticsSharedUsers')}</option>
+                </select>
+                <p className="text-xs text-th-text-s mt-1">{t('room.analyticsVisibilityHint')}</p>
+              </div>
+            )}
           </div>
 
           {/* Guest access section */}

src/pages/Settings.jsx

@@ -1,5 +1,5 @@
 import { useState, useRef, useEffect } from 'react';
-import { User, Mail, Lock, Palette, Save, Loader2, Globe, Camera, X, Calendar, Plus, Trash2, Copy, Eye, EyeOff } from 'lucide-react';
+import { User, Mail, Lock, Palette, Save, Loader2, Globe, Camera, X, Calendar, Plus, Trash2, Copy, Eye, EyeOff, Shield, ShieldCheck, ShieldOff } from 'lucide-react';
 import { useAuth } from '../contexts/AuthContext';
 import { useTheme } from '../contexts/ThemeContext';
 import { useLanguage } from '../contexts/LanguageContext';
@@ -46,6 +46,17 @@ export default function Settings() {
   const [newlyCreatedToken, setNewlyCreatedToken] = useState(null);
   const [tokenVisible, setTokenVisible] = useState(false);
 
+  // 2FA state
+  const [twoFaEnabled, setTwoFaEnabled] = useState(!!user?.totp_enabled);
+  const [twoFaLoading, setTwoFaLoading] = useState(false);
+  const [twoFaSetupData, setTwoFaSetupData] = useState(null); // { secret, uri, qrDataUrl }
+  const [twoFaCode, setTwoFaCode] = useState('');
+  const [twoFaEnabling, setTwoFaEnabling] = useState(false);
+  const [twoFaDisablePassword, setTwoFaDisablePassword] = useState('');
+  const [twoFaDisableCode, setTwoFaDisableCode] = useState('');
+  const [twoFaDisabling, setTwoFaDisabling] = useState(false);
+  const [showDisableForm, setShowDisableForm] = useState(false);
+
   useEffect(() => {
     if (activeSection === 'caldav') {
       setCaldavLoading(true);
@@ -54,6 +65,13 @@ export default function Settings() {
         .catch(() => {})
         .finally(() => setCaldavLoading(false));
     }
+    if (activeSection === 'security') {
+      setTwoFaLoading(true);
+      api.get('/auth/2fa/status')
+        .then(r => setTwoFaEnabled(r.data.enabled))
+        .catch(() => {})
+        .finally(() => setTwoFaLoading(false));
+    }
   }, [activeSection]);
 
   const handleCreateToken = async (e) => {
@@ -85,6 +103,56 @@ export default function Settings() {
     }
   };
 
+  // 2FA handlers
+  const handleSetup2FA = async () => {
+    setTwoFaLoading(true);
+    try {
+      const res = await api.post('/auth/2fa/setup');
+      // Generate QR code data URL client-side
+      const QRCode = (await import('qrcode')).default;
+      const qrDataUrl = await QRCode.toDataURL(res.data.uri, { width: 200, margin: 2, color: { dark: '#000000', light: '#ffffff' } });
+      setTwoFaSetupData({ secret: res.data.secret, uri: res.data.uri, qrDataUrl });
+    } catch (err) {
+      toast.error(err.response?.data?.error || t('settings.security.setupFailed'));
+    } finally {
+      setTwoFaLoading(false);
+    }
+  };
+
+  const handleEnable2FA = async (e) => {
+    e.preventDefault();
+    setTwoFaEnabling(true);
+    try {
+      await api.post('/auth/2fa/enable', { code: twoFaCode });
+      setTwoFaEnabled(true);
+      setTwoFaSetupData(null);
+      setTwoFaCode('');
+      toast.success(t('settings.security.enabled'));
+    } catch (err) {
+      toast.error(err.response?.data?.error || t('settings.security.enableFailed'));
+      setTwoFaCode('');
+    } finally {
+      setTwoFaEnabling(false);
+    }
+  };
+
+  const handleDisable2FA = async (e) => {
+    e.preventDefault();
+    setTwoFaDisabling(true);
+    try {
+      await api.post('/auth/2fa/disable', { password: twoFaDisablePassword, code: twoFaDisableCode });
+      setTwoFaEnabled(false);
+      setShowDisableForm(false);
+      setTwoFaDisablePassword('');
+      setTwoFaDisableCode('');
+      toast.success(t('settings.security.disabled'));
+    } catch (err) {
+      toast.error(err.response?.data?.error || t('settings.security.disableFailed'));
+    } finally {
+      setTwoFaDisabling(false);
+    }
+  };
+
   const groups = getThemeGroups();
 
   const avatarColors = [
@@ -184,6 +252,7 @@ export default function Settings() {
   const sections = [
     { id: 'profile', label: t('settings.profile'), icon: User },
     { id: 'password', label: t('settings.password'), icon: Lock },
+    { id: 'security', label: t('settings.security.title'), icon: Shield },
     { id: 'language', label: t('settings.language'), icon: Globe },
     { id: 'themes', label: t('settings.themes'), icon: Palette },
     { id: 'caldav', label: t('settings.caldav.title'), icon: Calendar },
@@ -411,6 +480,147 @@ export default function Settings() {
             </div>
           )}
 
+          {/* Security / 2FA section */}
+          {activeSection === 'security' && (
+            <div className="space-y-5">
+              <div className="card p-6">
+                <h2 className="text-lg font-semibold text-th-text mb-1">{t('settings.security.title')}</h2>
+                <p className="text-sm text-th-text-s mb-6">{t('settings.security.subtitle')}</p>
+
+                {twoFaLoading ? (
+                  <div className="flex items-center justify-center py-8">
+                    <Loader2 size={24} className="animate-spin text-th-text-s" />
+                  </div>
+                ) : twoFaEnabled ? (
+                  /* 2FA is enabled */
+                  <div>
+                    <div className="flex items-center gap-3 p-4 rounded-xl bg-emerald-500/10 border border-emerald-500/30 mb-5">
+                      <ShieldCheck size={22} className="text-emerald-400 flex-shrink-0" />
+                      <div>
+                        <p className="text-sm font-medium text-emerald-300">{t('settings.security.statusEnabled')}</p>
+                        <p className="text-xs text-emerald-400/70">{t('settings.security.statusEnabledDesc')}</p>
+                      </div>
+                    </div>
+
+                    {!showDisableForm ? (
+                      <button
+                        onClick={() => setShowDisableForm(true)}
+                        className="btn-ghost text-th-error hover:text-th-error text-sm"
+                      >
+                        <ShieldOff size={16} />
+                        {t('settings.security.disable')}
+                      </button>
+                    ) : (
+                      <form onSubmit={handleDisable2FA} className="space-y-4 p-4 rounded-xl bg-th-bg-t border border-th-border">
+                        <p className="text-sm text-th-text-s">{t('settings.security.disableConfirm')}</p>
+                        <div>
+                          <label className="block text-sm font-medium text-th-text mb-1.5">{t('settings.currentPassword')}</label>
+                          <div className="relative">
+                            <Lock size={18} className="absolute left-3.5 top-1/2 -translate-y-1/2 text-th-text-s" />
+                            <input
+                              type="password"
+                              value={twoFaDisablePassword}
+                              onChange={e => setTwoFaDisablePassword(e.target.value)}
+                              className="input-field pl-11"
+                              required
+                            />
+                          </div>
+                        </div>
+                        <div>
+                          <label className="block text-sm font-medium text-th-text mb-1.5">{t('settings.security.codeLabel')}</label>
+                          <input
+                            type="text"
+                            inputMode="numeric"
+                            autoComplete="one-time-code"
+                            value={twoFaDisableCode}
+                            onChange={e => setTwoFaDisableCode(e.target.value.replace(/[^0-9\s]/g, '').slice(0, 7))}
+                            className="input-field text-center text-lg tracking-[0.3em] font-mono"
+                            placeholder="000 000"
+                            required
+                            maxLength={7}
+                          />
+                        </div>
+                        <div className="flex gap-2">
+                          <button type="submit" disabled={twoFaDisabling} className="btn-primary bg-red-600 hover:bg-red-700 border-red-600">
+                            {twoFaDisabling ? <Loader2 size={14} className="animate-spin" /> : <ShieldOff size={14} />}
+                            {t('settings.security.disable')}
+                          </button>
+                          <button type="button" onClick={() => { setShowDisableForm(false); setTwoFaDisablePassword(''); setTwoFaDisableCode(''); }} className="btn-ghost text-sm">
+                            {t('common.cancel')}
+                          </button>
+                        </div>
+                      </form>
+                    )}
+                  </div>
+                ) : twoFaSetupData ? (
+                  /* Setup flow: show QR code + verification */
+                  <div className="space-y-5">
+                    <div className="text-center">
+                      <p className="text-sm text-th-text mb-4">{t('settings.security.scanQR')}</p>
+                      <div className="inline-block p-3 bg-white rounded-xl">
+                        <img src={twoFaSetupData.qrDataUrl} alt="TOTP QR Code" className="w-[200px] h-[200px]" />
+                      </div>
+                    </div>
+                    <div>
+                      <p className="text-xs font-medium text-th-text-s mb-1">{t('settings.security.manualKey')}</p>
+                      <div className="flex items-center gap-2">
+                        <code className="flex-1 text-xs bg-th-bg-t px-3 py-2 rounded-lg text-th-accent font-mono break-all">
+                          {twoFaSetupData.secret}
+                        </code>
+                        <button
+                          onClick={() => { navigator.clipboard.writeText(twoFaSetupData.secret); toast.success(t('room.linkCopied')); }}
+                          className="btn-ghost py-1.5 px-2 flex-shrink-0"
+                        >
+                          <Copy size={14} />
+                        </button>
+                      </div>
+                    </div>
+                    <form onSubmit={handleEnable2FA} className="space-y-3">
+                      <div>
+                        <label className="block text-sm font-medium text-th-text mb-1.5">{t('settings.security.verifyCode')}</label>
+                        <input
+                          type="text"
+                          inputMode="numeric"
+                          autoComplete="one-time-code"
+                          value={twoFaCode}
+                          onChange={e => setTwoFaCode(e.target.value.replace(/[^0-9\s]/g, '').slice(0, 7))}
+                          className="input-field text-center text-lg tracking-[0.3em] font-mono"
+                          placeholder="000 000"
+                          required
+                          maxLength={7}
+                        />
+                      </div>
+                      <div className="flex gap-2">
+                        <button type="submit" disabled={twoFaEnabling || twoFaCode.replace(/\s/g, '').length < 6} className="btn-primary">
+                          {twoFaEnabling ? <Loader2 size={14} className="animate-spin" /> : <ShieldCheck size={14} />}
+                          {t('settings.security.enable')}
+                        </button>
+                        <button type="button" onClick={() => { setTwoFaSetupData(null); setTwoFaCode(''); }} className="btn-ghost text-sm">
+                          {t('common.cancel')}
+                        </button>
+                      </div>
+                    </form>
+                  </div>
+                ) : (
+                  /* 2FA is disabled — show enable button */
+                  <div>
+                    <div className="flex items-center gap-3 p-4 rounded-xl bg-th-bg-t border border-th-border mb-5">
+                      <ShieldOff size={22} className="text-th-text-s flex-shrink-0" />
+                      <div>
+                        <p className="text-sm font-medium text-th-text">{t('settings.security.statusDisabled')}</p>
+                        <p className="text-xs text-th-text-s">{t('settings.security.statusDisabledDesc')}</p>
+                      </div>
+                    </div>
+                    <button onClick={handleSetup2FA} disabled={twoFaLoading} className="btn-primary">
+                      {twoFaLoading ? <Loader2 size={16} className="animate-spin" /> : <Shield size={16} />}
+                      {t('settings.security.enable')}
+                    </button>
+                  </div>
+                )}
+              </div>
+            </div>
+          )}
+
           {/* Language section */}
           {activeSection === 'language' && (
             <div className="card p-6">