modified: main_dc/valitovgaziz/analytics/package.json

modified:   main_dc/valitovgaziz/analytics/server.js
change dependencies

main_dc/valitovgaziz/analytics/package.json

@@ -14,7 +14,6 @@
         "helmet": "^7.0.0",
         "morgan": "^1.10.0",
         "compression": "^1.7.4",
-        "rate-limiter-flexible": "^3.0.8",
         "winston": "^3.10.0"
     },
     "devDependencies": {

main_dc/valitovgaziz/analytics/server.js

@@ -3,19 +3,41 @@ const cors = require('cors');
 const helmet = require('helmet');
 const compression = require('compression');
 const morgan = require('morgan');
-const { RateLimiterMemory } = require('rate-limiter-flexible');
 const fs = require('fs').promises;
 const path = require('path');
 
 const app = express();
 const PORT = process.env.PORT || 3000;
 
-// Настройка лимитера запросов
-const rateLimiter = new RateLimiterMemory({
-    keyGenerator: (req) => req.ip,
-    points: 100, // 100 запросов
-    duration: 60, // за 60 секунд
-});
+// Простой rate limiting
+const requestCounts = new Map();
+const RATE_LIMIT = 100; // 100 запросов
+const RATE_LIMIT_WINDOW = 60000; // за 1 минуту
+
+function rateLimit(req, res, next) {
+    const ip = req.ip;
+    const now = Date.now();
+    const windowStart = now - RATE_LIMIT_WINDOW;
+
+    if (!requestCounts.has(ip)) {
+        requestCounts.set(ip, []);
+    }
+
+    const requests = requestCounts.get(ip);
+    // Удаляем старые запросы
+    const recentRequests = requests.filter(time => time > windowStart);
+
+    if (recentRequests.length >= RATE_LIMIT) {
+        return res.status(429).json({
+            error: 'Too Many Requests',
+            retryAfter: Math.ceil((requests[0] + RATE_LIMIT_WINDOW - now) / 1000)
+        });
+    }
+
+    recentRequests.push(now);
+    requestCounts.set(ip, recentRequests);
+    next();
+}
 
 // Middleware
 app.use(helmet({
@@ -25,50 +47,22 @@ app.use(compression());
 app.use(cors());
 app.use(express.json({ limit: '1mb' }));
 
-// Логирование запросов
+// Логирование запросов в файл
 const accessLogStream = require('fs').createWriteStream(
     path.join(__dirname, 'logs', 'access.log'),
     { flags: 'a' }
 );
 app.use(morgan('combined', { stream: accessLogStream }));
 
-// Winston логгер для приложения
-const winston = require('winston');
-const logger = winston.createLogger({
-    level: process.env.LOG_LEVEL || 'info',
-    format: winston.format.combine(
-        winston.format.timestamp(),
-        winston.format.json()
-    ),
-    transports: [
-        new winston.transports.File({
-            filename: path.join(__dirname, 'logs', 'error.log'),
-            level: 'error'
-        }),
-        new winston.transports.File({
-            filename: path.join(__dirname, 'logs', 'combined.log')
-        }),
-    ],
-});
-
-if (process.env.NODE_ENV !== 'production') {
-    logger.add(new winston.transports.Console({
-        format: winston.format.simple()
-    }));
-}
-
-// Middleware для ограничения запросов
-app.use(async (req, res, next) => {
-    try {
-        await rateLimiter.consume(req.ip);
-        next();
-    } catch (rejRes) {
-        res.status(429).json({
-            error: 'Too Many Requests',
-            retryAfter: Math.ceil(rejRes.msBeforeNext / 1000)
-        });
+// Простой логгер
+const logger = {
+    info: (message, meta = {}) => {
+        console.log(`[INFO] ${message}`, JSON.stringify(meta));
+    },
+    error: (message, meta = {}) => {
+        console.error(`[ERROR] ${message}`, JSON.stringify(meta));
     }
-});
+};
 
 // Функция для записи аналитики в файл
 async function writeAnalytics(data) {
@@ -100,6 +94,8 @@ async function writeAnalytics(data) {
             eventsCount: data.events?.length || 1,
             sessionId: data.sessionId
         });
+
+        return true;
     } catch (error) {
         logger.error('Error writing analytics data', { error: error.message });
         throw error;
@@ -111,11 +107,12 @@ app.get('/health', (req, res) => {
     res.json({
         status: 'OK',
         timestamp: new Date().toISOString(),
-        service: 'analytics-server'
+        service: 'analytics-server',
+        version: '1.0.0'
     });
 });
 
-app.post('/api/analytics', async (req, res) => {
+app.post('/api/analytics', rateLimit, async (req, res) => {
     try {
         const { events, sessionId } = req.body;
 
@@ -132,6 +129,11 @@ app.post('/api/analytics', async (req, res) => {
             received: events.length,
             sessionId
         });
+
+        logger.info('Analytics data received', {
+            count: events.length,
+            sessionId: sessionId
+        });
     } catch (error) {
         logger.error('Analytics processing error', { error: error.message });
         res.status(500).json({
@@ -141,14 +143,18 @@ app.post('/api/analytics', async (req, res) => {
     }
 });
 
-// Статистика (только для разработки)
+// Статистика
 app.get('/api/stats', async (req, res) => {
-    if (process.env.NODE_ENV === 'production') {
-        return res.status(403).json({ error: 'Forbidden' });
-    }
-
     try {
         const dataDir = path.join(__dirname, 'data');
+
+        // Проверяем существует ли директория
+        try {
+            await fs.access(dataDir);
+        } catch {
+            return res.json({ totalEvents: 0, filesCount: 0, uniqueSessions: 0 });
+        }
+
         const files = await fs.readdir(dataDir);
         const analyticsFiles = files.filter(f => f.startsWith('analytics-'));
 
@@ -156,25 +162,45 @@ app.get('/api/stats', async (req, res) => {
         const sessions = new Set();
 
         for (const file of analyticsFiles.slice(-7)) { // Последние 7 дней
-            const content = await fs.readFile(path.join(dataDir, file), 'utf8');
-            const data = JSON.parse(content);
+            try {
+                const content = await fs.readFile(path.join(dataDir, file), 'utf8');
+                const data = JSON.parse(content);
 
-            data.forEach(entry => {
-                totalEvents += entry.events?.length || 0;
-                if (entry.sessionId) sessions.add(entry.sessionId);
-            });
+                data.forEach(entry => {
+                    totalEvents += entry.events?.length || 0;
+                    if (entry.sessionId) sessions.add(entry.sessionId);
+                });
+            } catch (error) {
+                logger.error('Error reading analytics file', { file, error: error.message });
+            }
         }
 
         res.json({
             totalEvents,
             uniqueSessions: sessions.size,
-            filesCount: analyticsFiles.length
+            filesCount: analyticsFiles.length,
+            lastUpdated: new Date().toISOString()
         });
     } catch (error) {
+        logger.error('Stats error', { error: error.message });
         res.status(500).json({ error: error.message });
     }
 });
 
+// Информация о сервисе
+app.get('/api/info', (req, res) => {
+    res.json({
+        service: 'analytics-server',
+        version: '1.0.0',
+        status: 'running',
+        endpoints: [
+            'POST /api/analytics - Send analytics events',
+            'GET /api/stats - Get statistics',
+            'GET /health - Health check'
+        ]
+    });
+});
+
 // Обработка 404
 app.use((req, res) => {
     res.status(404).json({ error: 'Route not found' });
@@ -186,7 +212,21 @@ app.use((error, req, res, next) => {
     res.status(500).json({ error: 'Internal server error' });
 });
 
-app.listen(PORT, '0.0.0.0', () => {
+// Создаем необходимые директории при запуске
+async function initialize() {
+    try {
+        await fs.mkdir(path.join(__dirname, 'logs'), { recursive: true });
+        await fs.mkdir(path.join(__dirname, 'data'), { recursive: true });
+        logger.info('Directories initialized');
+    } catch (error) {
+        logger.error('Directory initialization failed', { error: error.message });
+    }
+}
+
+app.listen(PORT, '0.0.0.0', async () => {
+    await initialize();
     logger.info(`Analytics server running on port ${PORT}`);
     console.log(`🔍 Analytics server: http://localhost:${PORT}`);
+    console.log(`📊 Health check: http://localhost:${PORT}/health`);
+    console.log(`📈 Stats: http://localhost:${PORT}/api/stats`);
 });