From f927bd3d3b11ede31d3c56bc900e7663e50d29b9 Mon Sep 17 00:00:00 2001 From: Chandini Date: Tue, 2 Sep 2025 13:59:36 +0530 Subject: [PATCH] backend changes --- dashboard-service/package-lock.json | 1937 +++++++++++++++++ docker-compose.yml | 35 +- services/api-gateway/package-lock.json | 93 +- services/api-gateway/package.json | 25 +- .../src/middleware/authentication.js | 122 ++ .../src/middleware/requestLogger.js | 126 ++ .../src/middleware/serviceHealth.js | 140 ++ .../api-gateway/src/middleware/webSocket.js | 136 ++ .../api-gateway/src/routes/healthRouter.js | 68 + .../api-gateway/src/routes/serviceRouter.js | 130 ++ .../api-gateway/src/routes/websocketRouter.js | 123 ++ services/api-gateway/src/server.js | 558 ++++- .../src/models/custom_template.js | 7 + services/template-manager/src/routes/admin.js | 40 +- .../template-manager/src/routes/templates.js | 76 +- services/template-manager/src/seeders/seed.js | 72 + 16 files changed, 3588 insertions(+), 100 deletions(-) create mode 100644 dashboard-service/package-lock.json create mode 100644 services/api-gateway/src/middleware/authentication.js create mode 100644 services/api-gateway/src/middleware/requestLogger.js create mode 100644 services/api-gateway/src/middleware/serviceHealth.js create mode 100644 services/api-gateway/src/middleware/webSocket.js create mode 100644 services/api-gateway/src/routes/healthRouter.js create mode 100644 services/api-gateway/src/routes/serviceRouter.js create mode 100644 services/api-gateway/src/routes/websocketRouter.js diff --git a/dashboard-service/package-lock.json b/dashboard-service/package-lock.json new file mode 100644 index 0000000..a9f8e15 --- /dev/null +++ b/dashboard-service/package-lock.json @@ -0,0 +1,1937 @@ +{ + "name": "ai-pipeline-dashboard", + "version": "2.0.0", + "lockfileVersion": 3, + "requires": true, + "packages": { + "": { + "name": "ai-pipeline-dashboard", + "version": "2.0.0", + "dependencies": { + "axios": "^1.6.0", + "chokidar": "^3.5.0", + 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">=0.4" + } + }, + "node_modules/yallist": { + "version": "4.0.0", + "resolved": "https://registry.npmjs.org/yallist/-/yallist-4.0.0.tgz", + "integrity": "sha512-3wdGidZyq5PB084XLES5TpOSRA3wjXAlIWMhum2kRcv/41Sn2emQ0dycQW4uZXLejwKvg6EsvbdlVL+FYEct7A==", + "license": "ISC" + } + } +} diff --git a/docker-compose.yml b/docker-compose.yml index bd25c4e..f782f84 100644 --- a/docker-compose.yml +++ b/docker-compose.yml @@ -545,7 +545,7 @@ services: - PORT=8000 - REDIS_HOST=redis - REDIS_PORT=6379 - - REDIS_PASSWORD=${REDIS_PASSWORD} + - REDIS_PASSWORD=redis123 - POSTGRES_HOST=postgres - POSTGRES_PORT=5432 - POSTGRES_DB=dev_pipeline @@ -555,6 +555,17 @@ services: - RABBITMQ_PORT=5672 - RABBITMQ_USER=pipeline_admin - RABBITMQ_PASSWORD=${RABBITMQ_PASSWORD} + # Internal service URLs for proxying (Docker network names) + - USER_AUTH_URL=http://user-auth:8011 + - TEMPLATE_MANAGER_URL=http://template-manager:8009 + - REQUIREMENT_PROCESSOR_URL=http://requirement-processor:8001 + - TECH_STACK_SELECTOR_URL=http://tech-stack-selector:8002 + - ARCHITECTURE_DESIGNER_URL=http://architecture-designer:8003 + - CODE_GENERATOR_URL=http://code-generator:8004 + - TEST_GENERATOR_URL=http://test-generator:8005 + - DEPLOYMENT_MANAGER_URL=http://deployment-manager:8006 + - DASHBOARD_URL=http://dashboard:8008 + - SELF_IMPROVING_GENERATOR_URL=http://self-improving-generator:8007 networks: - pipeline_network depends_on: @@ -578,7 +589,7 @@ services: - POSTGRES_PASSWORD=${POSTGRES_PASSWORD} - REDIS_HOST=redis - REDIS_PORT=6379 - - REDIS_PASSWORD=${REDIS_PASSWORD} + - REDIS_PASSWORD=redis123 - MONGODB_HOST=mongodb - MONGODB_PORT=27017 - NEO4J_URI=bolt://neo4j:7687 @@ -586,7 +597,7 @@ services: - NEO4J_PASSWORD=password - CHROMA_HOST=chromadb - CHROMA_PORT=8000 - - REDIS_URL=redis://redis:6379 + - REDIS_URL=redis://:redis123@redis:6379 networks: - pipeline_network depends_on: @@ -610,7 +621,7 @@ services: - POSTGRES_PASSWORD=${POSTGRES_PASSWORD} - REDIS_HOST=redis - REDIS_PORT=6379 - - REDIS_PASSWORD=${REDIS_PASSWORD} + - REDIS_PASSWORD=redis123 networks: - pipeline_network depends_on: @@ -666,7 +677,7 @@ services: - MONGODB_PORT=27017 - REDIS_HOST=redis - REDIS_PORT=6379 - - REDIS_PASSWORD=${REDIS_PASSWORD} + - REDIS_PASSWORD=redis123 - CLAUDE_API_KEY=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 - OPENAI_API_KEY=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 # - NEO4J_URI=bolt://neo4j:7687 @@ -711,7 +722,7 @@ services: - POSTGRES_PASSWORD=${POSTGRES_PASSWORD} - REDIS_HOST=redis - REDIS_PORT=6379 - - REDIS_PASSWORD=${REDIS_PASSWORD} + - REDIS_PASSWORD=redis123 networks: - pipeline_network depends_on: @@ -763,7 +774,7 @@ services: - POSTGRES_PASSWORD=${POSTGRES_PASSWORD} - REDIS_HOST=redis - REDIS_PORT=6379 - - REDIS_PASSWORD=${REDIS_PASSWORD} + - REDIS_PASSWORD=redis123 - JWT_ACCESS_SECRET=access-secret-key-2024-tech4biz-${POSTGRES_PASSWORD} - JWT_REFRESH_SECRET=refresh-secret-key-2024-tech4biz-${POSTGRES_PASSWORD} - JWT_ACCESS_EXPIRY=15m @@ -878,7 +889,15 @@ services: - NODE_ENV=production - PORT=8008 - DATABASE_URL=postgresql://pipeline_admin:${POSTGRES_PASSWORD}@postgres:5432/dev_pipeline - - REDIS_URL=redis://pipeline_redis:6379 + - POSTGRES_HOST=postgres + - POSTGRES_PORT=5432 + - POSTGRES_DB=dev_pipeline + - POSTGRES_USER=pipeline_admin + - POSTGRES_PASSWORD=secure_pipeline_2024 + - REDIS_URL=redis://:redis123@redis:6379 + - REDIS_HOST=redis + - REDIS_PORT=6379 + - REDIS_PASSWORD=redis123 - API_GATEWAY_URL=http://pipeline_api_gateway:8000 - CODE_GENERATOR_URL=http://pipeline_code_generator:8004 - SELF_IMPROVING_URL=http://pipeline_self_improving_generator:8007 diff --git a/services/api-gateway/package-lock.json b/services/api-gateway/package-lock.json index 7b590c6..addab2f 100644 --- a/services/api-gateway/package-lock.json +++ b/services/api-gateway/package-lock.json @@ -15,6 +15,7 @@ "express-rate-limit": "^6.8.1", "express-validator": "^7.0.1", "helmet": "^7.0.0", + "http-proxy-middleware": "^3.0.5", "jsonwebtoken": "^9.0.1", "morgan": "^1.10.0", "pg": "^8.11.1", @@ -1117,6 +1118,15 @@ "@types/node": "*" } }, + "node_modules/@types/http-proxy": { + "version": "1.17.16", + "resolved": "https://registry.npmjs.org/@types/http-proxy/-/http-proxy-1.17.16.tgz", + "integrity": "sha512-sdWoUajOB1cd0A8cRRQ1cfyWNbmFKLAqBB89Y8x5iYyG/mkJHc0YUH8pdWBy2omi9qtCpiIgGjuwO0dQST2l5w==", + "license": "MIT", + "dependencies": { + "@types/node": "*" + } + }, "node_modules/@types/istanbul-lib-coverage": { "version": "2.0.6", "resolved": "https://registry.npmjs.org/@types/istanbul-lib-coverage/-/istanbul-lib-coverage-2.0.6.tgz", @@ -1493,7 +1503,6 @@ "version": "3.0.3", "resolved": "https://registry.npmjs.org/braces/-/braces-3.0.3.tgz", "integrity": "sha512-yQbXgO/OSZVD2IsiLlro+7Hf6Q18EJrKSEsdoMzKePKXct3gvD8oLcOQdIzGupr5Fj+EDe8gO/lxc1BzfMpxvA==", - "dev": true, "license": "MIT", "dependencies": { "fill-range": "^7.1.1" @@ -2260,6 +2269,12 @@ "node": ">= 0.6" } }, + "node_modules/eventemitter3": { + "version": "4.0.7", + "resolved": "https://registry.npmjs.org/eventemitter3/-/eventemitter3-4.0.7.tgz", + "integrity": "sha512-8guHBZCwKnFhYdHr2ysuRWErTwhoN2X8XELRlrRwpmfeY2jjuUN4taQMsULKUVo1K4DvZl+0pgfyoysHxvmvEw==", + "license": "MIT" + }, "node_modules/execa": { "version": "5.1.1", "resolved": "https://registry.npmjs.org/execa/-/execa-5.1.1.tgz", @@ -2408,7 +2423,6 @@ "version": "7.1.1", "resolved": "https://registry.npmjs.org/fill-range/-/fill-range-7.1.1.tgz", "integrity": "sha512-YsGpe3WHLK8ZYi4tWDg2Jy3ebRz2rXowDxnld4bkQB00cc/1Zw9AWnC0i9ztDJitivtQvaI9KaLyKrc+hBW0yg==", - "dev": true, "license": "MIT", "dependencies": { "to-regex-range": "^5.0.1" @@ -2774,6 +2788,60 @@ "node": ">= 0.8" } }, + "node_modules/http-proxy": { + "version": "1.18.1", + "resolved": "https://registry.npmjs.org/http-proxy/-/http-proxy-1.18.1.tgz", + "integrity": "sha512-7mz/721AbnJwIVbnaSv1Cz3Am0ZLT/UBwkC92VlxhXv/k/BBQfM2fXElQNC27BVGr0uwUpplYPQM9LnaBMR5NQ==", + "license": "MIT", + "dependencies": { + "eventemitter3": "^4.0.0", + "follow-redirects": "^1.0.0", + "requires-port": "^1.0.0" + }, + "engines": { + "node": ">=8.0.0" + } + }, + "node_modules/http-proxy-middleware": { + "version": "3.0.5", + "resolved": "https://registry.npmjs.org/http-proxy-middleware/-/http-proxy-middleware-3.0.5.tgz", + "integrity": "sha512-GLZZm1X38BPY4lkXA01jhwxvDoOkkXqjgVyUzVxiEK4iuRu03PZoYHhHRwxnfhQMDuaxi3vVri0YgSro/1oWqg==", + "license": "MIT", + "dependencies": { + "@types/http-proxy": "^1.17.15", + "debug": "^4.3.6", + "http-proxy": "^1.18.1", + "is-glob": "^4.0.3", + "is-plain-object": "^5.0.0", + "micromatch": "^4.0.8" + }, + "engines": { + "node": "^14.15.0 || ^16.10.0 || >=18.0.0" + } + }, + "node_modules/http-proxy-middleware/node_modules/debug": { + "version": "4.4.1", + "resolved": "https://registry.npmjs.org/debug/-/debug-4.4.1.tgz", + "integrity": "sha512-KcKCqiftBJcZr++7ykoDIEwSa3XWowTfNPo92BYxjXiyYEVrUQh2aLyhxBCwww+heortUFxEJYcRzosstTEBYQ==", + "license": "MIT", + "dependencies": { + "ms": "^2.1.3" + }, + "engines": { + "node": ">=6.0" + }, + "peerDependenciesMeta": { + "supports-color": { + "optional": true + } + } + }, + "node_modules/http-proxy-middleware/node_modules/ms": { + "version": "2.1.3", + "resolved": "https://registry.npmjs.org/ms/-/ms-2.1.3.tgz", + "integrity": "sha512-6FlzubTLZG3J2a/NVCAleEhjzq5oxgHyaCU9yYXvcLsvoVaHJq/s5xXI6/XXP6tz7R9xAOtHnSO/tXtF3WRTlA==", + "license": "MIT" + }, "node_modules/human-signals": { "version": "2.1.0", "resolved": "https://registry.npmjs.org/human-signals/-/human-signals-2.1.0.tgz", @@ -2900,7 +2968,6 @@ "version": "2.1.1", "resolved": "https://registry.npmjs.org/is-extglob/-/is-extglob-2.1.1.tgz", "integrity": "sha512-SbKbANkN603Vi4jEZv49LeVJMn4yGwsbzZworEoyEiutsN3nJYdbO36zfhGJ6QEDpOZIFkDtnq5JRxmvl3jsoQ==", - "dev": true, "license": "MIT", "engines": { "node": ">=0.10.0" @@ -2930,7 +2997,6 @@ "version": "4.0.3", "resolved": "https://registry.npmjs.org/is-glob/-/is-glob-4.0.3.tgz", "integrity": "sha512-xelSayHH36ZgE7ZWhli7pW34hNbNl8Ojv5KVmkJD4hBdD3th8Tfk9vYasLM+mXWOZhFkgZfxhLSnrwRr4elSSg==", - "dev": true, "license": "MIT", "dependencies": { "is-extglob": "^2.1.1" @@ -2943,12 +3009,20 @@ "version": "7.0.0", "resolved": "https://registry.npmjs.org/is-number/-/is-number-7.0.0.tgz", "integrity": "sha512-41Cifkg6e8TylSpdtTpeLVMqvSBEVzTttHvERD741+pnZ8ANv0004MRL43QKPDlK9cGvNp6NZWZUBlbGXYxxng==", - "dev": true, "license": "MIT", "engines": { "node": ">=0.12.0" } }, + "node_modules/is-plain-object": { + "version": "5.0.0", + "resolved": "https://registry.npmjs.org/is-plain-object/-/is-plain-object-5.0.0.tgz", + "integrity": "sha512-VRSzKkbMm5jMDoKLbltAkFQ5Qr7VDiTFGXxYFXXowVj387GeGNOCsOH6Msy00SGZ3Fp84b1Naa1psqgcCIEP5Q==", + "license": "MIT", + "engines": { + "node": ">=0.10.0" + } + }, "node_modules/is-stream": { "version": "2.0.1", "resolved": "https://registry.npmjs.org/is-stream/-/is-stream-2.0.1.tgz", @@ -4001,7 +4075,6 @@ "version": "4.0.8", "resolved": "https://registry.npmjs.org/micromatch/-/micromatch-4.0.8.tgz", "integrity": "sha512-PXwfBhYu0hBCPw8Dn0E+WDYb7af3dSLVWKi3HGv84IdF4TyFoC0ysxFd0Goxw7nSv4T/PzEJQxsYsEiFCKo2BA==", - "dev": true, "license": "MIT", "dependencies": { "braces": "^3.0.3", @@ -4547,7 +4620,6 @@ "version": "2.3.1", "resolved": "https://registry.npmjs.org/picomatch/-/picomatch-2.3.1.tgz", "integrity": "sha512-JU3teHTNjmE2VCGFzuY8EXzCDVwEqB2a8fsIvwaStHhAWJEeVd1o1QD80CU6+ZdEXXSLbSsuLwJjkCBWqRQUVA==", - "dev": true, "license": "MIT", "engines": { "node": ">=8.6" @@ -4803,6 +4875,12 @@ "node": ">=0.10.0" } }, + "node_modules/requires-port": { + "version": "1.0.0", + "resolved": "https://registry.npmjs.org/requires-port/-/requires-port-1.0.0.tgz", + "integrity": "sha512-KigOCHcocU3XODJxsu8i/j8T9tzT4adHiecwORRQ0ZZFcp7ahwXuRU1m+yuO90C5ZUyGeGfocHDI14M3L3yDAQ==", + "license": "MIT" + }, "node_modules/resolve": { "version": "1.22.10", "resolved": "https://registry.npmjs.org/resolve/-/resolve-1.22.10.tgz", @@ -5442,7 +5520,6 @@ "version": "5.0.1", "resolved": "https://registry.npmjs.org/to-regex-range/-/to-regex-range-5.0.1.tgz", "integrity": "sha512-65P7iz6X5yEr1cwcgvQxbbIw7Uk3gOy5dIdtZ4rDveLqhrdJP+Li/Hx6tyK0NEb+2GCyneCMJiGqrADCSNk8sQ==", - "dev": true, "license": "MIT", "dependencies": { "is-number": "^7.0.0" diff --git a/services/api-gateway/package.json b/services/api-gateway/package.json index 941d045..8dd6f18 100644 --- a/services/api-gateway/package.json +++ b/services/api-gateway/package.json @@ -9,22 +9,23 @@ "test": "jest" }, "dependencies": { - "express": "^4.18.2", - "cors": "^2.8.5", - "helmet": "^7.0.0", - "express-rate-limit": "^6.8.1", - "jsonwebtoken": "^9.0.1", - "redis": "^4.6.7", - "pg": "^8.11.1", "axios": "^1.4.0", - "winston": "^3.10.0", - "socket.io": "^4.7.2", + "cors": "^2.8.5", "dotenv": "^16.3.1", + "express": "^4.18.2", + "express-rate-limit": "^6.8.1", "express-validator": "^7.0.1", - "morgan": "^1.10.0" + "helmet": "^7.0.0", + "http-proxy-middleware": "^2.0.6", + "jsonwebtoken": "^9.0.1", + "morgan": "^1.10.0", + "pg": "^8.11.1", + "redis": "^4.6.7", + "socket.io": "^4.7.2", + "winston": "^3.10.0" }, "devDependencies": { - "nodemon": "^3.0.1", - "jest": "^29.6.1" + "jest": "^29.6.1", + "nodemon": "^3.0.1" } } diff --git a/services/api-gateway/src/middleware/authentication.js b/services/api-gateway/src/middleware/authentication.js new file mode 100644 index 0000000..58f1c2c --- /dev/null +++ b/services/api-gateway/src/middleware/authentication.js @@ -0,0 +1,122 @@ +const jwt = require('jsonwebtoken'); +const axios = require('axios'); + +// JWT token verification middleware +const verifyToken = async (req, res, next) => { + try { + const token = req.headers.authorization?.split(' ')[1]; + + if (!token) { + return res.status(401).json({ + success: false, + message: 'Access token required', + error: 'No token provided' + }); + } + + // Verify JWT token + const decoded = jwt.verify(token, process.env.JWT_SECRET); + req.user = decoded; + + // Add user context to headers for downstream services + req.headers['x-user-id'] = decoded.id || decoded.userId; + req.headers['x-user-email'] = decoded.email; + req.headers['x-user-role'] = decoded.role || 'user'; + + next(); + } catch (error) { + console.error('Token verification failed:', error.message); + + if (error.name === 'TokenExpiredError') { + return res.status(401).json({ + success: false, + message: 'Token expired', + error: 'Please login again' + }); + } + + if (error.name === 'JsonWebTokenError') { + return res.status(401).json({ + success: false, + message: 'Invalid token', + error: 'Token verification failed' + }); + } + + return res.status(401).json({ + success: false, + message: 'Authentication failed', + error: error.message + }); + } +}; + +// Forward user context to downstream services +const forwardUserContext = (req, res, next) => { + if (req.user) { + // Add gateway headers for service identification + req.headers['x-gateway-request-id'] = req.requestId; + req.headers['x-gateway-timestamp'] = new Date().toISOString(); + req.headers['x-forwarded-by'] = 'api-gateway'; + req.headers['x-forwarded-for'] = req.ip; + req.headers['x-forwarded-proto'] = req.protocol; + req.headers['x-forwarded-host'] = req.get('host'); + } + next(); +}; + +// Optional token verification (doesn't fail if no token) +const verifyTokenOptional = async (req, res, next) => { + try { + const token = req.headers.authorization?.split(' ')[1]; + + if (token) { + const decoded = jwt.verify(token, process.env.JWT_SECRET); + req.user = decoded; + + // Add user context to headers + req.headers['x-user-id'] = decoded.id || decoded.userId; + req.headers['x-user-email'] = decoded.email; + req.headers['x-user-role'] = decoded.role || 'user'; + } + + next(); + } catch (error) { + // Continue without authentication for optional routes + console.log('Optional token verification failed:', error.message); + next(); + } +}; + +// Role-based authorization middleware +const requireRole = (roles) => { + return (req, res, next) => { + if (!req.user) { + return res.status(401).json({ + success: false, + message: 'Authentication required' + }); + } + + const userRole = req.user.role || 'user'; + const allowedRoles = Array.isArray(roles) ? roles : [roles]; + + if (!allowedRoles.includes(userRole)) { + return res.status(403).json({ + success: false, + message: 'Insufficient permissions', + required_roles: allowedRoles, + user_role: userRole + }); + } + + next(); + }; +}; + +module.exports = { + verifyToken, + forwardUserContext, + verifyTokenOptional, + requireRole +}; diff --git a/services/api-gateway/src/middleware/requestLogger.js b/services/api-gateway/src/middleware/requestLogger.js new file mode 100644 index 0000000..8a94334 --- /dev/null +++ b/services/api-gateway/src/middleware/requestLogger.js @@ -0,0 +1,126 @@ +const winston = require('winston'); + +// Configure Winston logger +const logger = winston.createLogger({ + level: process.env.LOG_LEVEL || 'info', + format: winston.format.combine( + winston.format.timestamp(), + winston.format.errors({ stack: true }), + winston.format.json() + ), + defaultMeta: { service: 'api-gateway' }, + transports: [ + new winston.transports.File({ filename: 'logs/error.log', level: 'error' }), + new winston.transports.File({ filename: 'logs/combined.log' }), + new winston.transports.Console({ + format: winston.format.combine( + winston.format.colorize(), + winston.format.simple() + ) + }) + ] +}); + +// Request logging middleware +const logRequest = (req, res, next) => { + const startTime = Date.now(); + + // Log incoming request + logger.info('Incoming Request', { + requestId: req.requestId, + method: req.method, + url: req.originalUrl, + ip: req.ip, + userAgent: req.get('User-Agent'), + timestamp: new Date().toISOString(), + headers: { + authorization: req.headers.authorization ? '[REDACTED]' : undefined, + 'content-type': req.headers['content-type'], + 'x-forwarded-for': req.headers['x-forwarded-for'] + } + }); + + // Override res.end to log response + const originalEnd = res.end; + res.end = function(chunk, encoding) { + const responseTime = Date.now() - startTime; + + // Log response + logger.info('Response Sent', { + requestId: req.requestId, + method: req.method, + url: req.originalUrl, + statusCode: res.statusCode, + responseTime: `${responseTime}ms`, + timestamp: new Date().toISOString() + }); + + // Call original end method + originalEnd.call(this, chunk, encoding); + }; + + next(); +}; + +// Error logging middleware +const logError = (error, req, res, next) => { + logger.error('Request Error', { + requestId: req.requestId, + method: req.method, + url: req.originalUrl, + error: error.message, + stack: error.stack, + timestamp: new Date().toISOString() + }); + + next(error); +}; + +// Service proxy logging +const logProxyRequest = (serviceName, targetUrl) => { + return (proxyReq, req, res) => { + logger.info('Proxy Request', { + requestId: req.requestId, + service: serviceName, + method: req.method, + originalUrl: req.originalUrl, + targetUrl: targetUrl, + timestamp: new Date().toISOString() + }); + }; +}; + +const logProxyResponse = (serviceName) => { + return (proxyRes, req, res) => { + logger.info('Proxy Response', { + requestId: req.requestId, + service: serviceName, + method: req.method, + originalUrl: req.originalUrl, + statusCode: proxyRes.statusCode, + timestamp: new Date().toISOString() + }); + }; +}; + +const logProxyError = (serviceName) => { + return (err, req, res) => { + logger.error('Proxy Error', { + requestId: req.requestId, + service: serviceName, + method: req.method, + originalUrl: req.originalUrl, + error: err.message, + timestamp: new Date().toISOString() + }); + }; +}; + +module.exports = { + logger, + logRequest, + logError, + logProxyRequest, + logProxyResponse, + logProxyError +}; diff --git a/services/api-gateway/src/middleware/serviceHealth.js b/services/api-gateway/src/middleware/serviceHealth.js new file mode 100644 index 0000000..03ad500 --- /dev/null +++ b/services/api-gateway/src/middleware/serviceHealth.js @@ -0,0 +1,140 @@ +const axios = require('axios'); + +// Service health monitoring +class ServiceHealthMonitor { + constructor() { + this.serviceStatus = {}; + this.healthCheckInterval = null; + this.healthCheckFrequency = parseInt(process.env.HEALTH_CHECK_FREQUENCY) || 30000; // 30 seconds + } + + // Initialize health monitoring for all services + async initializeHealthMonitoring() { + const serviceTargets = { + USER_AUTH_URL: process.env.USER_AUTH_URL || 'http://localhost:8011', + TEMPLATE_MANAGER_URL: process.env.TEMPLATE_MANAGER_URL || 'http://localhost:8009', + REQUIREMENT_PROCESSOR_URL: process.env.REQUIREMENT_PROCESSOR_URL || 'http://localhost:8001', + TECH_STACK_SELECTOR_URL: process.env.TECH_STACK_SELECTOR_URL || 'http://localhost:8002', + ARCHITECTURE_DESIGNER_URL: process.env.ARCHITECTURE_DESIGNER_URL || 'http://localhost:8003', + CODE_GENERATOR_URL: process.env.CODE_GENERATOR_URL || 'http://localhost:8004', + TEST_GENERATOR_URL: process.env.TEST_GENERATOR_URL || 'http://localhost:8005', + DEPLOYMENT_MANAGER_URL: process.env.DEPLOYMENT_MANAGER_URL || 'http://localhost:8006', + DASHBOARD_URL: process.env.DASHBOARD_URL || 'http://localhost:8008', + SELF_IMPROVING_GENERATOR_URL: process.env.SELF_IMPROVING_GENERATOR_URL || 'http://localhost:8007', + }; + + // Initial health check + await this.checkAllServices(serviceTargets); + + // Start periodic health checks + this.startPeriodicHealthChecks(serviceTargets); + + console.log('✅ Service health monitoring initialized'); + } + + // Check health of all services + async checkAllServices(serviceTargets) { + const healthPromises = Object.entries(serviceTargets).map(async ([serviceName, serviceUrl]) => { + try { + const startTime = Date.now(); + const response = await axios.get(`${serviceUrl}/health`, { + timeout: 5000, + headers: { 'User-Agent': 'API-Gateway-Health-Check' } + }); + + const responseTime = Date.now() - startTime; + + this.serviceStatus[serviceName] = { + status: response.status === 200 ? 'healthy' : 'unhealthy', + url: serviceUrl, + responseTime: responseTime, + lastChecked: new Date().toISOString(), + error: null + }; + } catch (error) { + this.serviceStatus[serviceName] = { + status: 'unhealthy', + url: serviceUrl, + responseTime: null, + lastChecked: new Date().toISOString(), + error: error.message + }; + } + }); + + await Promise.allSettled(healthPromises); + } + + // Start periodic health checks + startPeriodicHealthChecks(serviceTargets) { + if (this.healthCheckInterval) { + clearInterval(this.healthCheckInterval); + } + + this.healthCheckInterval = setInterval(async () => { + await this.checkAllServices(serviceTargets); + }, this.healthCheckFrequency); + } + + // Stop health monitoring + stopHealthMonitoring() { + if (this.healthCheckInterval) { + clearInterval(this.healthCheckInterval); + this.healthCheckInterval = null; + } + } + + // Get current service status + getServiceStatus() { + const totalServices = Object.keys(this.serviceStatus).length; + const healthyServices = Object.values(this.serviceStatus).filter(s => s.status === 'healthy').length; + + return { + summary: { + total_services: totalServices, + healthy_services: healthyServices, + unhealthy_services: totalServices - healthyServices, + overall_health: healthyServices === totalServices ? 'healthy' : 'degraded' + }, + services: this.serviceStatus, + last_updated: new Date().toISOString() + }; + } +} + +// Create singleton instance +const healthMonitor = new ServiceHealthMonitor(); + +// Middleware to get service status +const getServiceStatus = (req, res) => { + const status = healthMonitor.getServiceStatus(); + res.json({ + success: true, + ...status + }); +}; + +// Middleware to check if a specific service is healthy +const checkServiceHealth = (serviceName) => { + return (req, res, next) => { + const serviceStatus = healthMonitor.serviceStatus[serviceName]; + + if (!serviceStatus || serviceStatus.status !== 'healthy') { + return res.status(503).json({ + success: false, + message: `Service ${serviceName} is currently unavailable`, + service_status: serviceStatus || { status: 'unknown' }, + retry_after: 30 + }); + } + + next(); + }; +}; + +module.exports = { + healthMonitor, + initializeHealthMonitoring: () => healthMonitor.initializeHealthMonitoring(), + getServiceStatus, + checkServiceHealth +}; diff --git a/services/api-gateway/src/middleware/webSocket.js b/services/api-gateway/src/middleware/webSocket.js new file mode 100644 index 0000000..ba9b5c4 --- /dev/null +++ b/services/api-gateway/src/middleware/webSocket.js @@ -0,0 +1,136 @@ +const jwt = require('jsonwebtoken'); + +// WebSocket authentication middleware +const authenticateSocket = (socket, next) => { + try { + const token = socket.handshake.auth.token || socket.handshake.headers.authorization?.split(' ')[1]; + + if (!token) { + return next(new Error('Authentication token required')); + } + + const decoded = jwt.verify(token, process.env.JWT_SECRET); + socket.user = decoded; + socket.userId = decoded.id || decoded.userId; + + console.log(`✅ WebSocket authenticated: ${socket.user.email || socket.userId}`); + next(); + } catch (error) { + console.error('WebSocket authentication failed:', error.message); + next(new Error('Authentication failed')); + } +}; + +// WebSocket connection handler with authentication +const handleWebSocketConnections = (io) => { + // Authentication middleware for all connections + io.use(authenticateSocket); + + io.on('connection', (socket) => { + console.log(`🔌 Client connected: ${socket.id} (User: ${socket.user.email || socket.userId})`); + + // Join user-specific room + const userRoom = `user_${socket.userId}`; + socket.join(userRoom); + + // Send connection confirmation + socket.emit('connected', { + message: 'Connected to CodeNuk API Gateway', + timestamp: new Date().toISOString(), + socketId: socket.id, + user: { + id: socket.userId, + email: socket.user.email, + role: socket.user.role + } + }); + + // Handle service-specific events + socket.on('subscribe_to_service', (data) => { + const { service } = data; + const serviceRoom = `service_${service}`; + socket.join(serviceRoom); + + console.log(`📡 User ${socket.userId} subscribed to ${service} updates`); + socket.emit('subscribed', { service, room: serviceRoom }); + }); + + socket.on('unsubscribe_from_service', (data) => { + const { service } = data; + const serviceRoom = `service_${service}`; + socket.leave(serviceRoom); + + console.log(`📡 User ${socket.userId} unsubscribed from ${service} updates`); + socket.emit('unsubscribed', { service, room: serviceRoom }); + }); + + // Handle project-specific events + socket.on('join_project', (data) => { + const { projectId } = data; + const projectRoom = `project_${projectId}`; + socket.join(projectRoom); + + console.log(`📁 User ${socket.userId} joined project ${projectId}`); + socket.emit('joined_project', { projectId, room: projectRoom }); + }); + + socket.on('leave_project', (data) => { + const { projectId } = data; + const projectRoom = `project_${projectId}`; + socket.leave(projectRoom); + + console.log(`📁 User ${socket.userId} left project ${projectId}`); + socket.emit('left_project', { projectId, room: projectRoom }); + }); + + // Handle real-time notifications + socket.on('send_notification', (data) => { + const { targetUserId, message, type } = data; + const targetRoom = `user_${targetUserId}`; + + io.to(targetRoom).emit('notification', { + from: socket.userId, + message, + type, + timestamp: new Date().toISOString() + }); + + console.log(`📢 Notification sent from ${socket.userId} to ${targetUserId}`); + }); + + // Handle disconnection + socket.on('disconnect', (reason) => { + console.log(`🔌 Client disconnected: ${socket.id} (User: ${socket.user.email || socket.userId}) - Reason: ${reason}`); + }); + + // Handle errors + socket.on('error', (error) => { + console.error(`❌ Socket error for ${socket.id}:`, error); + }); + }); + + // Broadcast service status updates + const broadcastServiceUpdate = (serviceName, status) => { + io.to(`service_${serviceName}`).emit('service_status_update', { + service: serviceName, + status, + timestamp: new Date().toISOString() + }); + }; + + // Broadcast project updates + const broadcastProjectUpdate = (projectId, update) => { + io.to(`project_${projectId}`).emit('project_update', { + projectId, + update, + timestamp: new Date().toISOString() + }); + }; + + return { + broadcastServiceUpdate, + broadcastProjectUpdate + }; +}; + +module.exports = handleWebSocketConnections; diff --git a/services/api-gateway/src/routes/healthRouter.js b/services/api-gateway/src/routes/healthRouter.js new file mode 100644 index 0000000..ca6ddba --- /dev/null +++ b/services/api-gateway/src/routes/healthRouter.js @@ -0,0 +1,68 @@ +const express = require('express'); +const { healthMonitor } = require('../middleware/serviceHealth'); + +const router = express.Router(); + +// Get comprehensive service health status +router.get('/services', (req, res) => { + const status = healthMonitor.getServiceStatus(); + res.json({ + success: true, + ...status + }); +}); + +// Get health status for a specific service +router.get('/service/:serviceName', (req, res) => { + const { serviceName } = req.params; + const serviceStatus = healthMonitor.serviceStatus[serviceName]; + + if (!serviceStatus) { + return res.status(404).json({ + success: false, + message: `Service ${serviceName} not found`, + available_services: Object.keys(healthMonitor.serviceStatus) + }); + } + + res.json({ + success: true, + service: serviceName, + ...serviceStatus + }); +}); + +// Trigger manual health check for all services +router.post('/check', async (req, res) => { + try { + const serviceTargets = { + USER_AUTH_URL: process.env.USER_AUTH_URL || 'http://localhost:8011', + TEMPLATE_MANAGER_URL: process.env.TEMPLATE_MANAGER_URL || 'http://localhost:8009', + REQUIREMENT_PROCESSOR_URL: process.env.REQUIREMENT_PROCESSOR_URL || 'http://localhost:8001', + TECH_STACK_SELECTOR_URL: process.env.TECH_STACK_SELECTOR_URL || 'http://localhost:8002', + ARCHITECTURE_DESIGNER_URL: process.env.ARCHITECTURE_DESIGNER_URL || 'http://localhost:8003', + CODE_GENERATOR_URL: process.env.CODE_GENERATOR_URL || 'http://localhost:8004', + TEST_GENERATOR_URL: process.env.TEST_GENERATOR_URL || 'http://localhost:8005', + DEPLOYMENT_MANAGER_URL: process.env.DEPLOYMENT_MANAGER_URL || 'http://localhost:8006', + DASHBOARD_URL: process.env.DASHBOARD_URL || 'http://localhost:8008', + SELF_IMPROVING_GENERATOR_URL: process.env.SELF_IMPROVING_GENERATOR_URL || 'http://localhost:8007', + }; + + await healthMonitor.checkAllServices(serviceTargets); + const status = healthMonitor.getServiceStatus(); + + res.json({ + success: true, + message: 'Health check completed', + ...status + }); + } catch (error) { + res.status(500).json({ + success: false, + message: 'Health check failed', + error: error.message + }); + } +}); + +module.exports = { router }; diff --git a/services/api-gateway/src/routes/serviceRouter.js b/services/api-gateway/src/routes/serviceRouter.js new file mode 100644 index 0000000..d595d51 --- /dev/null +++ b/services/api-gateway/src/routes/serviceRouter.js @@ -0,0 +1,130 @@ +const { createProxyMiddleware } = require('http-proxy-middleware'); +const { logProxyRequest, logProxyResponse, logProxyError } = require('../middleware/requestLogger'); + +// Create service proxy with enhanced logging and error handling +const createServiceProxy = (targetUrl, serviceName, options = {}) => { + return createProxyMiddleware({ + target: targetUrl, + changeOrigin: true, + ws: true, + timeout: parseInt(process.env.PROXY_TIMEOUT) || 30000, + proxyTimeout: parseInt(process.env.PROXY_TIMEOUT) || 30000, + pathRewrite: options.pathRewrite || {}, + onProxyReq: logProxyRequest(serviceName, targetUrl), + onProxyRes: logProxyResponse(serviceName), + onError: (err, req, res) => { + logProxyError(serviceName)(err, req, res); + + if (!res.headersSent) { + // Handle different types of proxy errors + if (err.code === 'ECONNREFUSED' || err.code === 'ENOTFOUND') { + return res.status(503).json({ + success: false, + message: 'Service temporarily unavailable', + service: serviceName, + error: 'The requested service is currently unavailable', + request_id: req.requestId, + retry_after: 30 + }); + } + + if (err.code === 'ETIMEDOUT' || err.message.includes('timeout')) { + return res.status(504).json({ + success: false, + message: 'Service timeout', + service: serviceName, + error: 'The service took too long to respond', + request_id: req.requestId, + retry_after: 60 + }); + } + + // Generic proxy error + res.status(502).json({ + success: false, + message: 'Bad Gateway', + service: serviceName, + error: 'Unable to connect to the service', + request_id: req.requestId + }); + } + } + }); +}; + +// Create auth-specific proxy (no authentication required for login/register) +const createAuthProxy = () => { + const targetUrl = process.env.USER_AUTH_URL || 'http://localhost:8011'; + + console.log(`🔧 [PROXY CREATION] Creating auth proxy targeting: ${targetUrl}`); + + return createProxyMiddleware({ + target: targetUrl, + changeOrigin: true, + ws: true, + timeout: 30000, + proxyTimeout: 30000, + // Don't parse body - let it pass through + parseReqBody: false, + // Strip /api/auth prefix before forwarding to service + pathRewrite: { + '^/api/auth': '' + }, + onProxyReq: (proxyReq, req, res) => { + console.log(`🔥 [PROXY MIDDLEWARE TRIGGERED!] This means the proxy is working!`); + + // Calculate the rewritten path + const rewrittenPath = req.url.replace(/^\/api\/auth/, ''); + const finalUrl = `${targetUrl}${rewrittenPath}`; + + console.log(`🔐 [AUTH PROXY DEBUG]`); + console.log(` Original URL: ${req.originalUrl}`); + console.log(` Request URL: ${req.url}`); + console.log(` Target URL: ${targetUrl}`); + console.log(` Rewritten Path: ${rewrittenPath}`); + console.log(` FINAL URL HITTING: ${finalUrl}`); + console.log(` Method: ${req.method}`); + console.log(` Headers: ${JSON.stringify(req.headers, null, 2)}`); + + // Add gateway headers + proxyReq.setHeader('X-Gateway-Request-ID', req.requestId); + proxyReq.setHeader('X-Gateway-Timestamp', new Date().toISOString()); + proxyReq.setHeader('X-Forwarded-By', 'api-gateway'); + proxyReq.setHeader('X-Forwarded-For', req.ip); + proxyReq.setHeader('X-Forwarded-Proto', req.protocol); + proxyReq.setHeader('X-Forwarded-Host', req.get('host')); + + // Ensure content-type and content-length are preserved + if (req.headers['content-type']) { + proxyReq.setHeader('Content-Type', req.headers['content-type']); + } + if (req.headers['content-length']) { + proxyReq.setHeader('Content-Length', req.headers['content-length']); + } + }, + onProxyRes: (proxyRes, req, res) => { + console.log(`🔐 [AUTH RESPONSE] ${proxyRes.statusCode} for ${req.method} ${req.originalUrl}`); + + // Add CORS headers + proxyRes.headers['Access-Control-Allow-Origin'] = req.headers.origin || '*'; + proxyRes.headers['Access-Control-Allow-Credentials'] = 'true'; + }, + onError: (err, req, res) => { + console.error(`❌ [AUTH PROXY ERROR] ${req.method} ${req.originalUrl}:`, err.message); + + if (!res.headersSent) { + res.status(502).json({ + success: false, + message: 'Authentication service unavailable', + error: 'Unable to connect to authentication service', + request_id: req.requestId + }); + } + } + }); +}; + +module.exports = { + createServiceProxy, + createAuthProxy +}; diff --git a/services/api-gateway/src/routes/websocketRouter.js b/services/api-gateway/src/routes/websocketRouter.js new file mode 100644 index 0000000..98d9ecc --- /dev/null +++ b/services/api-gateway/src/routes/websocketRouter.js @@ -0,0 +1,123 @@ +const express = require('express'); +const { verifyToken } = require('../middleware/authentication'); + +const router = express.Router(); + +// Get WebSocket connection info +router.get('/info', verifyToken, (req, res) => { + const io = global.io; + + if (!io) { + return res.status(500).json({ + success: false, + message: 'WebSocket server not initialized' + }); + } + + res.json({ + success: true, + websocket: { + connected_clients: io.engine.clientsCount, + transport_types: ['websocket', 'polling'], + endpoint: '/socket.io/', + authentication_required: true + }, + rooms: { + user_rooms: `user_${req.user.id || req.user.userId}`, + available_services: [ + 'user-auth', 'template-manager', 'requirement-processor', + 'tech-stack-selector', 'architecture-designer', 'code-generator', + 'test-generator', 'deployment-manager', 'dashboard', 'self-improving-generator' + ] + } + }); +}); + +// Broadcast message to specific service subscribers +router.post('/broadcast/service/:serviceName', verifyToken, (req, res) => { + const { serviceName } = req.params; + const { message, type = 'info' } = req.body; + const io = global.io; + + if (!io) { + return res.status(500).json({ + success: false, + message: 'WebSocket server not initialized' + }); + } + + const serviceRoom = `service_${serviceName}`; + io.to(serviceRoom).emit('service_broadcast', { + service: serviceName, + message, + type, + from: req.user.email || req.user.id, + timestamp: new Date().toISOString() + }); + + res.json({ + success: true, + message: `Broadcast sent to ${serviceName} subscribers`, + room: serviceRoom + }); +}); + +// Broadcast message to specific project +router.post('/broadcast/project/:projectId', verifyToken, (req, res) => { + const { projectId } = req.params; + const { message, type = 'info' } = req.body; + const io = global.io; + + if (!io) { + return res.status(500).json({ + success: false, + message: 'WebSocket server not initialized' + }); + } + + const projectRoom = `project_${projectId}`; + io.to(projectRoom).emit('project_broadcast', { + projectId, + message, + type, + from: req.user.email || req.user.id, + timestamp: new Date().toISOString() + }); + + res.json({ + success: true, + message: `Broadcast sent to project ${projectId}`, + room: projectRoom + }); +}); + +// Send notification to specific user +router.post('/notify/:userId', verifyToken, (req, res) => { + const { userId } = req.params; + const { message, type = 'info', title } = req.body; + const io = global.io; + + if (!io) { + return res.status(500).json({ + success: false, + message: 'WebSocket server not initialized' + }); + } + + const userRoom = `user_${userId}`; + io.to(userRoom).emit('notification', { + title, + message, + type, + from: req.user.email || req.user.id, + timestamp: new Date().toISOString() + }); + + res.json({ + success: true, + message: `Notification sent to user ${userId}`, + room: userRoom + }); +}); + +module.exports = router; diff --git a/services/api-gateway/src/server.js b/services/api-gateway/src/server.js index 97ed6c1..1557278 100644 --- a/services/api-gateway/src/server.js +++ b/services/api-gateway/src/server.js @@ -1,113 +1,531 @@ const express = require('express'); +const http = require('http'); +const socketIo = require('socket.io'); const cors = require('cors'); const helmet = require('helmet'); const morgan = require('morgan'); const rateLimit = require('express-rate-limit'); -const { createServer } = require('http'); -const { Server } = require('socket.io'); +const { createProxyMiddleware } = require('http-proxy-middleware'); +const jwt = require('jsonwebtoken'); +const axios = require('axios'); require('dotenv').config(); -const app = express(); -const server = createServer(app); -const io = new Server(server, { - cors: { - origin: "*", - methods: ["GET", "POST"] - } -}); +// Import middleware +const authMiddleware = require('./middleware/authentication'); +const serviceHealthMiddleware = require('./middleware/serviceHealth'); +const requestLogger = require('./middleware/requestLogger'); +const websocketAuth = require('./middleware/webSocket'); +// Import route handlers +const serviceRouter = require('./routes/serviceRouter'); +const healthRouter = require('./routes/healthRouter'); +const websocketRouter = require('./routes/websocketRouter'); + +const app = express(); +const server = http.createServer(app); const PORT = process.env.PORT || 8000; -// Middleware -app.use(helmet()); -app.use(cors()); -app.use(morgan('combined')); -app.use(express.json({ limit: '10mb' })); -app.use(express.urlencoded({ extended: true })); +// Initialize Socket.IO with CORS +const io = socketIo(server, { + cors: { + origin: process.env.FRONTEND_URL || "*", + credentials: true, + methods: ['GET', 'POST'] + }, + transports: ['websocket', 'polling'] +}); -// Rate limiting -const limiter = rateLimit({ - windowMs: 15 * 60 * 1000, // 15 minutes - max: 1000, // limit each IP to 1000 requests per windowMs - message: 'Too many requests from this IP, please try again later.', +// Make io available globally for other modules +global.io = io; + +// Service targets configuration +const serviceTargets = { + USER_AUTH_URL: process.env.USER_AUTH_URL || 'http://localhost:8011', + TEMPLATE_MANAGER_URL: process.env.TEMPLATE_MANAGER_URL || 'http://localhost:8009', + REQUIREMENT_PROCESSOR_URL: process.env.REQUIREMENT_PROCESSOR_URL || 'http://localhost:8001', + TECH_STACK_SELECTOR_URL: process.env.TECH_STACK_SELECTOR_URL || 'http://localhost:8002', + ARCHITECTURE_DESIGNER_URL: process.env.ARCHITECTURE_DESIGNER_URL || 'http://localhost:8003', + CODE_GENERATOR_URL: process.env.CODE_GENERATOR_URL || 'http://localhost:8004', + TEST_GENERATOR_URL: process.env.TEST_GENERATOR_URL || 'http://localhost:8005', + DEPLOYMENT_MANAGER_URL: process.env.DEPLOYMENT_MANAGER_URL || 'http://localhost:8006', + DASHBOARD_URL: process.env.DASHBOARD_URL || 'http://localhost:8008', + SELF_IMPROVING_GENERATOR_URL: process.env.SELF_IMPROVING_GENERATOR_URL || 'http://localhost:8007', +}; + +// ======================================== +// MIDDLEWARE SETUP +// ======================================== + +// Security middleware +app.use(helmet({ + contentSecurityPolicy: { + directives: { + defaultSrc: ["'self'"], + styleSrc: ["'self'", "'unsafe-inline'"], + scriptSrc: ["'self'"], + imgSrc: ["'self'", "data:", "https:"], + connectSrc: ["'self'", "ws:", "wss:"] + } + } +})); + +// CORS configuration +app.use(cors({ + origin: process.env.FRONTEND_URL || "*", + credentials: true, + optionsSuccessStatus: 200, + methods: ['GET', 'POST', 'PUT', 'DELETE', 'OPTIONS'], + allowedHeaders: [ + 'Origin', 'X-Requested-With', 'Content-Type', 'Accept', 'Authorization', + 'X-Gateway-Request-ID', 'X-Gateway-Timestamp', 'X-Forwarded-By', + 'X-Forwarded-For', 'X-Forwarded-Proto', 'X-Forwarded-Host', + 'X-Session-Token', 'X-Platform', 'X-App-Version' + ], + exposedHeaders: [ + 'X-Gateway-Request-ID', 'X-Gateway-Timestamp', 'X-Forwarded-By', + 'X-Forwarded-For', 'X-Forwarded-Proto', 'X-Forwarded-Host' + ] +})); + +// Request parsing middleware - only for non-proxy routes +app.use('/api/websocket', express.json({ limit: '10mb' })); +app.use('/api/gateway', express.json({ limit: '10mb' })); +app.use('/api/auth', express.json({ limit: '10mb' })); +app.use('/api/templates', express.json({ limit: '10mb' })); +app.use('/health', express.json({ limit: '10mb' })); + +// Trust proxy for accurate IP addresses +app.set('trust proxy', 1); + +// Request ID middleware for tracing +app.use((req, res, next) => { + req.requestId = `gw-${Date.now()}-${Math.random().toString(36).substr(2, 9)}`; + res.setHeader('X-Request-ID', req.requestId); + next(); +}); + +app.use(morgan(process.env.NODE_ENV === 'production' ? 'combined' : 'dev')); + +// Custom request logger for service tracking +app.use(requestLogger.logRequest); + +// Rate limiting configuration +const createServiceLimiter = (maxRequests = 1000) => rateLimit({ + windowMs: parseInt(process.env.RATE_LIMIT_WINDOW_MS) || 15 * 60 * 1000, + max: maxRequests, + message: { + success: false, + message: 'Too many requests, please try again later.', + retry_after: 900 + }, standardHeaders: true, - legacyHeaders: false, + legacyHeaders: false }); -app.use('/api/', limiter); -// Health check endpoint +// Health check endpoint (before rate limiting and authentication) app.get('/health', (req, res) => { - res.json({ - status: 'healthy', + res.json({ + success: true, service: 'api-gateway', + status: 'healthy', timestamp: new Date().toISOString(), - version: '1.0.0', + version: process.env.npm_package_version || '1.0.0', + environment: process.env.NODE_ENV || 'development', uptime: process.uptime(), - memory: process.memoryUsage() + services: { + user_auth: process.env.USER_AUTH_URL ? 'configured' : 'not configured', + template_manager: process.env.TEMPLATE_MANAGER_URL ? 'configured' : 'not configured', + requirement_processor: process.env.REQUIREMENT_PROCESSOR_URL ? 'configured' : 'not configured', + tech_stack_selector: process.env.TECH_STACK_SELECTOR_URL ? 'configured' : 'not configured', + architecture_designer: process.env.ARCHITECTURE_DESIGNER_URL ? 'configured' : 'not configured', + code_generator: process.env.CODE_GENERATOR_URL ? 'configured' : 'not configured', + test_generator: process.env.TEST_GENERATOR_URL ? 'configured' : 'not configured', + deployment_manager: process.env.DEPLOYMENT_MANAGER_URL ? 'configured' : 'not configured', + dashboard: process.env.DASHBOARD_URL ? 'configured' : 'not configured', + self_improving_generator: process.env.SELF_IMPROVING_GENERATOR_URL ? 'configured' : 'not configured' + }, + websocket: 'enabled' }); }); -// Basic routes -app.get('/api/v1/status', (req, res) => { - res.json({ - message: 'API Gateway is running', - environment: process.env.NODE_ENV || 'development', - services: { - 'requirement-processor': 'pending', - 'tech-stack-selector': 'pending', - 'architecture-designer': 'pending', - 'code-generator': 'pending', - 'test-generator': 'pending', - 'deployment-manager': 'pending' - }, - timestamp: new Date().toISOString() - }); -}); +// Service health monitoring routes +app.use('/health', healthRouter.router); // WebSocket connection handling -io.on('connection', (socket) => { - console.log('Client connected:', socket.id); +const websocketHandlers = websocketAuth(io); + +// Auth Service - Fixed proxy with proper connection handling +console.log('🔧 Registering /api/auth proxy route...'); +app.use('/api/auth', (req, res, next) => { + console.log(`🔥 [AUTH PROXY] ${req.method} ${req.originalUrl} → http://localhost:8011${req.originalUrl}`); - socket.on('disconnect', () => { - console.log('Client disconnected:', socket.id); + // Set response timeout to prevent hanging + res.setTimeout(15000, () => { + console.error('❌ [AUTH PROXY] Response timeout'); + if (!res.headersSent) { + res.status(504).json({ error: 'Gateway timeout', service: 'user-auth' }); + } }); - - // Send initial connection confirmation - socket.emit('connected', { - message: 'Connected to API Gateway', - timestamp: new Date().toISOString() + + const options = { + method: req.method, + url: `http://localhost:8011${req.originalUrl}`, + headers: { + 'Content-Type': 'application/json', + 'User-Agent': 'API-Gateway/1.0', + 'Connection': 'keep-alive' + }, + timeout: 8000, + validateStatus: () => true, + maxRedirects: 0 + }; + + // Always include request body for POST/PUT/PATCH requests + if (req.method === 'POST' || req.method === 'PUT' || req.method === 'PATCH') { + options.data = req.body || {}; + console.log(`📦 [AUTH PROXY] Request body:`, JSON.stringify(req.body)); + } + + axios(options) + .then(response => { + console.log(`✅ [AUTH PROXY] Response: ${response.status} for ${req.method} ${req.originalUrl}`); + if (!res.headersSent) { + res.status(response.status).json(response.data); + } + }) + .catch(error => { + console.error(`❌ [AUTH PROXY ERROR]:`, error.message); + if (!res.headersSent) { + if (error.response) { + res.status(error.response.status).json(error.response.data); + } else { + res.status(502).json({ + error: 'Auth service unavailable', + message: error.code || error.message, + service: 'user-auth' + }); + } + } + }); +}); + +// WebSocket API routes for managing connections +app.use('/api/websocket', websocketRouter); + +// Apply rate limiting to other API routes +app.use('/api', createServiceLimiter(1000)); + +// Template Manager Service - Direct HTTP forwarding +console.log('🔧 Registering /api/templates proxy route...'); +app.use('/api/templates', + createServiceLimiter(200), + authMiddleware.verifyToken, + authMiddleware.forwardUserContext, + (req, res, next) => { + console.log(`🔥 [TEMPLATE PROXY] ${req.method} ${req.originalUrl} → http://localhost:8009${req.originalUrl}`); + + // Set response timeout to prevent hanging + res.setTimeout(15000, () => { + console.error('❌ [TEMPLATE PROXY] Response timeout'); + if (!res.headersSent) { + res.status(504).json({ error: 'Gateway timeout', service: 'template-manager' }); + } + }); + + const options = { + method: req.method, + url: `http://localhost:8009${req.originalUrl}`, + headers: { + 'Content-Type': 'application/json', + 'User-Agent': 'API-Gateway/1.0', + 'Connection': 'keep-alive', + // Forward user context from auth middleware + 'X-User-ID': req.user?.id || req.user?.userId, + 'X-User-Role': req.user?.role, + 'Authorization': req.headers.authorization + }, + timeout: 8000, + validateStatus: () => true, + maxRedirects: 0 + }; + + // Always include request body for POST/PUT/PATCH requests + if (req.method === 'POST' || req.method === 'PUT' || req.method === 'PATCH') { + options.data = req.body || {}; + console.log(`📦 [TEMPLATE PROXY] Request body:`, JSON.stringify(req.body)); + } + + axios(options) + .then(response => { + console.log(`✅ [TEMPLATE PROXY] Response: ${response.status} for ${req.method} ${req.originalUrl}`); + if (!res.headersSent) { + res.status(response.status).json(response.data); + } + }) + .catch(error => { + console.error(`❌ [TEMPLATE PROXY ERROR]:`, error.message); + if (!res.headersSent) { + if (error.response) { + res.status(error.response.status).json(error.response.data); + } else { + res.status(502).json({ + error: 'Template service unavailable', + message: error.code || error.message, + service: 'template-manager' + }); + } + } + }); + } +); + +// Requirement Processor Service +app.use('/api/requirements', + createServiceLimiter(300), + authMiddleware.verifyToken, + authMiddleware.forwardUserContext, + serviceRouter.createServiceProxy(serviceTargets.REQUIREMENT_PROCESSOR_URL, 'requirement-processor') +); + +// Tech Stack Selector Service +app.use('/api/tech-stack', + createServiceLimiter(200), + authMiddleware.verifyToken, + authMiddleware.forwardUserContext, + serviceRouter.createServiceProxy(serviceTargets.TECH_STACK_SELECTOR_URL, 'tech-stack-selector') +); + +// Architecture Designer Service +app.use('/api/architecture', + createServiceLimiter(150), + authMiddleware.verifyToken, + authMiddleware.forwardUserContext, + serviceRouter.createServiceProxy(serviceTargets.ARCHITECTURE_DESIGNER_URL, 'architecture-designer') +); + +// Code Generator Service +app.use('/api/codegen', + createServiceLimiter(100), + authMiddleware.verifyToken, + authMiddleware.forwardUserContext, + serviceRouter.createServiceProxy(serviceTargets.CODE_GENERATOR_URL, 'code-generator') +); + +// Test Generator Service +app.use('/api/tests', + createServiceLimiter(150), + authMiddleware.verifyToken, + authMiddleware.forwardUserContext, + serviceRouter.createServiceProxy(serviceTargets.TEST_GENERATOR_URL, 'test-generator') +); + +// Deployment Manager Service +app.use('/api/deploy', + createServiceLimiter(100), + authMiddleware.verifyToken, + authMiddleware.forwardUserContext, + serviceRouter.createServiceProxy(serviceTargets.DEPLOYMENT_MANAGER_URL, 'deployment-manager') +); + +// Dashboard Service +app.use('/api/dashboard', + createServiceLimiter(300), + authMiddleware.verifyToken, + authMiddleware.forwardUserContext, + serviceRouter.createServiceProxy(serviceTargets.DASHBOARD_URL, 'dashboard') +); + +// Self-Improving Generator Service +app.use('/api/self-improving', + createServiceLimiter(50), + authMiddleware.verifyToken, + authMiddleware.forwardUserContext, + serviceRouter.createServiceProxy(serviceTargets.SELF_IMPROVING_GENERATOR_URL, 'self-improving-generator') +); + +// Gateway management endpoints +app.get('/api/gateway/info', authMiddleware.verifyToken, (req, res) => { + res.json({ + success: true, + gateway: { + name: 'CodeNuk API Gateway', + version: process.env.npm_package_version || '1.0.0', + environment: process.env.NODE_ENV || 'development', + uptime: process.uptime() + }, + services: { + total_services: Object.keys(serviceTargets).length, + operational_services: Object.keys(serviceTargets).length, + service_urls: serviceTargets + }, + features: { + websocket_enabled: true, + authentication: true, + rate_limiting: true, + health_monitoring: true, + request_logging: true, + cors_enabled: true + }, + websocket: { + connected_clients: io.engine.clientsCount, + transport_types: ['websocket', 'polling'] + } }); }); -// Error handling middleware -app.use((err, req, res, next) => { - console.error('Error:', err.stack); - res.status(500).json({ - error: 'Internal server error', - message: process.env.NODE_ENV === 'development' ? err.message : 'Something went wrong!', - timestamp: new Date().toISOString() +// Service status endpoint +app.get('/api/gateway/services', authMiddleware.verifyToken, serviceHealthMiddleware.getServiceStatus); + +// Root endpoint +app.get('/', (req, res) => { + res.json({ + success: true, + message: 'CodeNuk API Gateway', + version: process.env.npm_package_version || '1.0.0', + description: 'Central gateway for all CodeNuk microservices', + documentation: { + health: '/health', + gateway_info: '/api/gateway/info', + service_status: '/api/gateway/services' + }, + services: { + auth: '/api/auth', + templates: '/api/templates', + requirements: '/api/requirements', + tech_stack: '/api/tech-stack', + architecture: '/api/architecture', + codegen: '/api/codegen', + tests: '/api/tests', + deploy: '/api/deploy', + dashboard: '/api/dashboard', + self_improving: '/api/self-improving' + }, + websocket: { + endpoint: '/socket.io/', + authentication_required: true + } }); }); // 404 handler app.use('*', (req, res) => { - res.status(404).json({ - error: 'Route not found', - path: req.originalUrl, - timestamp: new Date().toISOString() + res.status(404).json({ + success: false, + message: 'Endpoint not found', + available_services: { + auth: '/api/auth', + templates: '/api/templates', + requirements: '/api/requirements', + tech_stack: '/api/tech-stack', + architecture: '/api/architecture', + codegen: '/api/codegen', + tests: '/api/tests', + deploy: '/api/deploy', + dashboard: '/api/dashboard', + self_improving: '/api/self-improving' + }, + documentation: '/api/gateway/info' }); }); +// Global error handler +app.use((error, req, res, next) => { + console.error(`[${req.requestId}] Gateway Error:`, error); + + // Handle proxy errors + if (error.code === 'ECONNREFUSED' || error.code === 'ENOTFOUND') { + return res.status(503).json({ + success: false, + message: 'Service temporarily unavailable', + error: 'The requested service is currently unavailable', + request_id: req.requestId + }); + } + + // Handle timeout errors + if (error.code === 'ETIMEDOUT' || error.message.includes('timeout')) { + return res.status(504).json({ + success: false, + message: 'Service timeout', + error: 'The service took too long to respond', + request_id: req.requestId + }); + } + + // Handle authentication errors + if (error.name === 'JsonWebTokenError' || error.name === 'TokenExpiredError') { + return res.status(401).json({ + success: false, + message: 'Authentication failed', + error: error.message + }); + } + + // Generic error handler + res.status(error.status || 500).json({ + success: false, + message: error.message || 'Internal gateway error', + error: process.env.NODE_ENV === 'development' ? { + stack: error.stack, + name: error.name + } : undefined, + request_id: req.requestId + }); +}); + +// Start server and initialize health monitoring +const startServer = async () => { + try { + console.log('🚀 Starting CodeNuk API Gateway...'); + + // Initialize service health monitoring + await serviceHealthMiddleware.initializeHealthMonitoring(); + + server.listen(PORT, '0.0.0.0', () => { + console.log(`✅ API Gateway running on port ${PORT}`); + console.log(`🌍 Environment: ${process.env.NODE_ENV || 'development'}`); + console.log(`📋 Health check: http://localhost:${PORT}/health`); + console.log(`📖 Gateway info: http://localhost:${PORT}/api/gateway/info`); + console.log(`🔗 WebSocket enabled on: ws://localhost:${PORT}`); + + // Log service configuration + console.log('⚙️ Configured Services:'); + Object.entries(serviceTargets).forEach(([name, url]) => { + console.log(` - ${name}: ${url}`); + }); + + console.log('🔧 Features:'); + console.log(` - Rate Limiting: Enabled`); + console.log(` - Authentication: JWT with Auth Service`); + console.log(` - WebSocket: Real-time notifications`); + console.log(` - Health Monitoring: All services`); + console.log(` - Request Logging: Enabled`); + }); + + } catch (error) { + console.error('❌ Failed to start API Gateway:', error); + process.exit(1); + } +}; + // Graceful shutdown process.on('SIGTERM', () => { - console.log('SIGTERM received, shutting down gracefully'); + console.log('📴 SIGTERM received, shutting down gracefully...'); server.close(() => { - console.log('Process terminated'); + console.log('✅ API Gateway shut down successfully'); + process.exit(0); }); }); -server.listen(PORT, '0.0.0.0', () => { - console.log(`🚀 API Gateway running on port ${PORT}`); - console.log(`📊 Health check: http://localhost:${PORT}/health`); - console.log(`📡 WebSocket server started`); +process.on('SIGINT', () => { + console.log('📴 SIGINT received, shutting down gracefully...'); + server.close(() => { + console.log('✅ API Gateway shut down successfully'); + process.exit(0); + }); }); + +// Start the server +startServer(); + +module.exports = app; \ No newline at end of file diff --git a/services/template-manager/src/models/custom_template.js b/services/template-manager/src/models/custom_template.js index da633c2..c09e337 100644 --- a/services/template-manager/src/models/custom_template.js +++ b/services/template-manager/src/models/custom_template.js @@ -283,6 +283,13 @@ class CustomTemplate { admin_reviewed_by }; + // Maintain the legacy boolean flag alongside the status for easier filtering + if (status === 'approved') { + updates.approved = true; + } else if (status === 'rejected' || status === 'duplicate') { + updates.approved = false; + } + if (canonical_template_id) { updates.canonical_template_id = canonical_template_id; } diff --git a/services/template-manager/src/routes/admin.js b/services/template-manager/src/routes/admin.js index 1ee5544..1ce8c74 100644 --- a/services/template-manager/src/routes/admin.js +++ b/services/template-manager/src/routes/admin.js @@ -485,13 +485,51 @@ router.post('/templates/:id/review', async (req, res) => { console.log(`🔍 Admin: Reviewing template ${id} with status: ${status}`); + // If approving, also create a main template entry and link it, atomically + if (status === 'approved') { + const existingCustom = await CustomTemplate.getById(id); + if (!existingCustom) { + return res.status(404).json({ + success: false, + error: 'Template not found', + message: 'The specified template does not exist' + }); + } + // Create in main templates + const Template = require('../models/template'); + const payload = { + type: existingCustom.type, + title: existingCustom.title, + description: existingCustom.description, + icon: existingCustom.icon, + category: existingCustom.category, + gradient: existingCustom.gradient, + border: existingCustom.border, + text: existingCustom.text, + subtext: existingCustom.subtext, + }; + const created = await Template.create(payload); + // Update custom template flags and link canonical_template_id + const updatedCustom = await CustomTemplate.reviewTemplate(id, { + status: 'approved', + admin_notes, + canonical_template_id: created.id, + admin_reviewed_by: req.user.username || req.user.email + }); + return res.json({ + success: true, + data: { custom_template: updatedCustom, template: created }, + message: `Template '${created.title}' created and custom template approved` + }); + } + const template = await CustomTemplate.reviewTemplate(id, { status, admin_notes, canonical_template_id, admin_reviewed_by: req.user.username || req.user.email }); - + if (!template) { return res.status(404).json({ success: false, diff --git a/services/template-manager/src/routes/templates.js b/services/template-manager/src/routes/templates.js index 418a707..10a20ee 100644 --- a/services/template-manager/src/routes/templates.js +++ b/services/template-manager/src/routes/templates.js @@ -737,7 +737,28 @@ router.post('/', async (req, res) => { } const template = await Template.create(templateData); - + + // Link back to custom_templates when approving from a custom + if (templateData.approved_from_custom) { + try { + const customId = templateData.approved_from_custom; + const uuidV4Regex = /^[0-9a-f]{8}-[0-9a-f]{4}-4[0-9a-f]{3}-[89ab][0-9a-f]{3}-[0-9a-f]{12}$/i; + if (uuidV4Regex.test(customId)) { + await CustomTemplate.update(customId, { + approved: true, + status: 'approved', + canonical_template_id: template.id, + admin_reviewed_at: new Date(), + admin_reviewed_by: 'system_auto' + }); + } else { + console.warn('[POST /api/templates] approved_from_custom is not a valid UUID v4'); + } + } catch (linkErr) { + console.error('⚠️ Failed to set approved=true on custom_templates:', linkErr.message); + } + } + res.status(201).json({ success: true, data: template, @@ -763,6 +784,59 @@ router.post('/', async (req, res) => { } }); +// POST /api/templates/approve-custom - Create main template and approve a custom template in one atomic flow +router.post('/approve-custom', async (req, res) => { + try { + const { custom_template_id, template } = req.body || {}; + + const customId = custom_template_id || req.body?.customTemplateId || req.body?.id; + const uuidV4Regex = /^[0-9a-f]{8}-[0-9a-f]{4}-4[0-9a-f]{3}-[89ab][0-9a-f]{3}-[0-9a-f]{12}$/i; + if (!customId || !uuidV4Regex.test(customId)) { + return res.status(400).json({ success: false, error: 'Invalid custom_template_id', message: 'Provide a valid UUID v4 for custom_template_id' }); + } + + // Load custom template to mirror missing fields if needed + const existingCustom = await CustomTemplate.getById(customId); + if (!existingCustom) { + return res.status(404).json({ success: false, error: 'Custom template not found', message: `No custom template with id ${customId}` }); + } + + const payload = { + type: template?.type || existingCustom.type, + title: template?.title || existingCustom.title, + description: template?.description ?? existingCustom.description, + icon: template?.icon ?? existingCustom.icon, + category: template?.category || existingCustom.category, + gradient: template?.gradient ?? existingCustom.gradient, + border: template?.border ?? existingCustom.border, + text: template?.text ?? existingCustom.text, + subtext: template?.subtext ?? existingCustom.subtext, + approved_from_custom: customId + }; + + // Create in main templates + const created = await Template.create(payload); + + // Mark custom template as approved and link canonical_template_id + await CustomTemplate.update(customId, { + approved: true, + status: 'approved', + canonical_template_id: created.id, + admin_reviewed_at: new Date(), + admin_reviewed_by: (req.user && (req.user.username || req.user.email)) || 'admin' + }); + + return res.status(201).json({ + success: true, + data: { template: created, custom_template_id: customId }, + message: `Template '${created.title}' created and custom template approved` + }); + } catch (error) { + console.error('❌ Error approving custom template:', error.message); + return res.status(500).json({ success: false, error: 'Failed to approve custom template', message: error.message }); + } +}); + // PUT /api/templates/:id - Update template or custom template based on isCustom flag router.put('/:id', async (req, res) => { try { diff --git a/services/template-manager/src/seeders/seed.js b/services/template-manager/src/seeders/seed.js index 224ad58..b91b8cd 100644 --- a/services/template-manager/src/seeders/seed.js +++ b/services/template-manager/src/seeders/seed.js @@ -182,6 +182,42 @@ const TEMPLATE_DATA = { display_order: 2 } ] + }, + { + type: 'ai_chatbot_platform', + title: 'AI Chatbot Platform', + description: 'Deploy multi-channel AI chatbots with analytics and workflows', + icon: '🤖', + gradient: 'from-teal-50 to-teal-100', + border: 'border-teal-200', + text: 'text-teal-900', + subtext: 'text-teal-700', + features: [ + { + feature_id: 'nlp_engine', + name: 'NLP Engine', + description: 'Natural language processing for intent and entity extraction', + feature_type: 'essential', + complexity: 'high', + display_order: 1 + }, + { + feature_id: 'channel_integrations', + name: 'Channel Integrations', + description: 'Integrate with web, WhatsApp, and Slack', + feature_type: 'essential', + complexity: 'medium', + display_order: 2 + }, + { + feature_id: 'conversation_analytics', + name: 'Conversation Analytics', + description: 'Track KPIs: containment rate, CSAT, and response time', + feature_type: 'suggested', + complexity: 'medium', + display_order: 3 + } + ] } ], 'Custom & Others': [ @@ -195,6 +231,42 @@ const TEMPLATE_DATA = { text: 'text-gray-900', subtext: 'text-gray-700', features: [] + }, + { + type: 'project_management_tool', + title: 'Project Management Tool', + description: 'Tasks, Kanban boards, sprints, and team collaboration', + icon: '🗂️', + gradient: 'from-amber-50 to-amber-100', + border: 'border-amber-200', + text: 'text-amber-900', + subtext: 'text-amber-700', + features: [ + { + feature_id: 'kanban_boards', + name: 'Kanban Boards', + description: 'Organize tasks into customizable columns', + feature_type: 'essential', + complexity: 'medium', + display_order: 1 + }, + { + feature_id: 'sprint_planning', + name: 'Sprint Planning', + description: 'Plan sprints, track velocity, and manage backlogs', + feature_type: 'essential', + complexity: 'high', + display_order: 2 + }, + { + feature_id: 'collaboration_tools', + name: 'Collaboration Tools', + description: 'Comments, mentions, and notifications', + feature_type: 'suggested', + complexity: 'medium', + display_order: 3 + } + ] } ] };