Umbrella MCP Server

import { readFileSync, writeFileSync, existsSync } from 'fs'; import { resolve } from 'path'; import crypto from 'crypto'; export interface ServerConfig { transport: 'stdio' | 'https'; port: number; debug: boolean; production: boolean; httpsOptions: { keyPath: string; certPath: string; }; } export interface AuthConfig { tokenExpiration: number; issuer: string; encryptionKey: string; rsaKeyPath: string; allowedRedirectUris?: string[]; } export interface CloudflareConfig { enabled: boolean; autoDetectUrl: boolean; tunnelCommand: string; currentTunnelUrl?: string; } export interface UmbrellaConfig { baseUrl: string; frontendBaseUrl?: string; } export interface McpConfig { serverName: string; serverVersion: string; } export interface AppConfig { server: ServerConfig; auth: AuthConfig; cloudflare: CloudflareConfig; umbrella: UmbrellaConfig; mcp: McpConfig; } export class ConfigLoader { private static instance: ConfigLoader; private config!: AppConfig; private configPath: string; private constructor() { this.configPath = resolve(process.cwd(), 'config.json'); this.loadConfig(); } static getInstance(): ConfigLoader { if (!ConfigLoader.instance) { ConfigLoader.instance = new ConfigLoader(); } return ConfigLoader.instance; } private loadConfig(): void { if (!existsSync(this.configPath)) { throw new Error(`Configuration file not found at ${this.configPath}`); } try { const configContent = readFileSync(this.configPath, 'utf-8'); this.config = JSON.parse(configContent); // Generate encryption key if not present if (!this.config.auth.encryptionKey) { this.config.auth.encryptionKey = crypto.randomBytes(32).toString('base64'); this.saveConfig(); } } catch (error) { throw new Error(`Failed to load configuration: ${error}`); } } getConfig(): AppConfig { return this.config; } updateTunnelUrl(url: string): void { this.config.cloudflare.currentTunnelUrl = url; this.config.auth.issuer = url.endsWith('/') ? url : `${url}/`; this.saveConfig(); if (this.config.server.debug) { console.log(`[CONFIG] Updated tunnel URL to: ${url}`); console.log(`[CONFIG] Updated issuer to: ${this.config.auth.issuer}`); } } private saveConfig(): void { try { writeFileSync(this.configPath, JSON.stringify(this.config, null, 2)); } catch (error) { console.error(`Failed to save configuration: ${error}`); } } isDebugMode(): boolean { return this.config.server.debug; } isProduction(): boolean { return this.config.server.production; } getTransportMode(): 'stdio' | 'https' { return this.config.server.transport; } }