const crypto = require('crypto');
const winston = require('winston');
class Config {
constructor() {
this.port = process.env.PORT || 3000;
this.nodeEnv = process.env.NODE_ENV || 'development';
this.dbPath = process.env.DB_PATH || './data/roblox_mcp.db';
this.hmacSecret = process.env.ROBLOX_MCP_HMAC_SECRET || 'default_secret_123';
this.verbose = (process.env.ROBLOX_MCP_VERBOSE || 'false').toLowerCase() === 'true';
this.corsOrigin = process.env.CORS_ORIGIN || '*';
this.logLevel = process.env.LOG_LEVEL || 'info';
this.logFile = process.env.LOG_FILE || './logs/app.log';
// Rate limiting
this.rateLimitWindowMs = parseInt(process.env.RATE_LIMIT_WINDOW_MS) || 900000;
this.rateLimitMaxRequests = parseInt(process.env.RATE_LIMIT_MAX_REQUESTS) || 100;
// Security
this.enableRateLimiting = (process.env.ENABLE_RATE_LIMITING || 'true').toLowerCase() === 'true';
this.enableSecurityHeaders = (process.env.ENABLE_SECURITY_HEADERS || 'true').toLowerCase() === 'true';
// Railway
this.railwayStaticUrl = process.env.RAILWAY_STATIC_URL;
// Database optimization for Railway
this.dbConnectionTimeout = parseInt(process.env.DB_CONNECTION_TIMEOUT) || 10000; // 10 seconds
this.dbQueryTimeout = parseInt(process.env.DB_QUERY_TIMEOUT) || 30000; // 30 seconds
this.enableDbPool = (process.env.ENABLE_DB_POOL || 'true').toLowerCase() === 'true';
// Server timeout optimization
this.requestTimeout = parseInt(process.env.REQUEST_TIMEOUT) || 35000;
this.keepAliveTimeout = parseInt(process.env.KEEP_ALIVE_TIMEOUT) || 70000;
// Railway storage configuration
this.persistentDataPath = process.env.DATA_PATH || './data';
this.dbPath = process.env.DB_PATH || `${this.persistentDataPath}/roblox_mcp.db`;
this.validateConfig();
}
validateConfig() {
if (this.hmacSecret.length < 16) {
throw new Error('HMAC secret must be at least 16 characters long');
}
if (!['development', 'production', 'test'].includes(this.nodeEnv)) {
throw new Error('NODE_ENV must be one of: development, production, test');
}
if (this.port < 1024 || this.port > 65535) {
throw new Error('PORT must be between 1024 and 65535');
}
}
generateHmac(data) {
return crypto
.createHmac('sha256', this.hmacSecret)
.update(data, 'utf8')
.digest('hex');
}
validateHmac(data, signature) {
const expected = this.generateHmac(data);
return crypto.timingSafeEqual(
Buffer.from(expected, 'hex'),
Buffer.from(signature, 'hex')
);
}
get isDevelopment() {
return this.nodeEnv === 'development';
}
get isProduction() {
return this.nodeEnv === 'production';
}
get isTest() {
return this.nodeEnv === 'test';
}
// Initialize logger
initializeLogger() {
const transports = [
new winston.transports.Console({
format: winston.format.combine(
winston.format.colorize(),
winston.format.simple()
)
})
];
if (this.logFile) {
transports.push(
new winston.transports.File({
filename: this.logFile,
format: winston.format.combine(
winston.format.timestamp(),
winston.format.json()
)
})
);
}
return winston.createLogger({
level: this.logLevel,
transports
});
}
printSummary() {
console.log('🔧 Configuration Summary:');
console.log(`📊 Environment: ${this.nodeEnv}`);
console.log(`🔌 Port: ${this.port}`);
console.log(`💾 Database: ${this.dbPath}`);
console.log(`🔐 HMAC Secret: ${this.isDevelopment ? this.hmacSecret : '*'.repeat(this.hmacSecret.length)}`);
console.log(`📝 Verbose: ${this.verbose}`);
console.log(`📈 Rate Limiting: ${this.enableRateLimiting ? 'Enabled' : 'Disabled'}`);
console.log(`🛡️ Security Headers: ${this.enableSecurityHeaders ? 'Enabled' : 'Disabled'}`);
console.log(`⚡ DB Timeout: ${this.dbQueryTimeout}ms`);
console.log(`🔄 Connection Pool: ${this.enableDbPool ? 'Enabled' : 'Disabled'}`);
console.log(`🌐 Railway Static URL: ${this.railwayStaticUrl || 'Not set'}`);
}
}
module.exports = new Config();
