index.ts•2.59 kB
#!/usr/bin/env node
import { Server } from "@modelcontextprotocol/sdk/server/index.js";
import { StdioServerTransport } from "@modelcontextprotocol/sdk/server/stdio.js";
import { createToolDefinitions } from "./tools.js";
import { setupRequestHandlers } from "./requestHandler.js";
import { ensureConfigDirectories } from "./config.js";
import * as fs from 'fs';
import * as path from 'path';
import * as os from 'os';
// Set up logging to a file instead of console
const logDir = path.join(os.tmpdir(), 'smtp-mcp-server-logs');
try {
if (!fs.existsSync(logDir)) {
fs.mkdirSync(logDir, { recursive: true });
}
} catch (error) {
// Silently fail if we can't create the log directory
}
const logFile = path.join(logDir, 'smtp-mcp-server.log');
export function logToFile(message: string): void {
try {
fs.appendFileSync(logFile, `${new Date().toISOString()} - ${message}\n`);
} catch (error) {
// Silently fail if we can't write to the log file
}
}
/**
* Main function to run the SMTP MCP server
*/
async function runServer() {
try {
// Ensure config directories exist
await ensureConfigDirectories();
// Initialize the server
const server = new Server(
{
name: "smtp-email-server",
version: "1.0.0",
description: "SMTP Email MCP Server with template management"
},
{
capabilities: {
resources: {},
tools: {},
},
}
);
// Set error handler
server.onerror = (error) => logToFile(`[MCP Error] ${error}`);
// Create tool definitions
const TOOLS = createToolDefinitions();
// Setup request handlers
await setupRequestHandlers(server, TOOLS);
// Create transport and connect
const transport = new StdioServerTransport();
await server.connect(transport);
logToFile("SMTP MCP Server started successfully");
// Keep the process alive when run directly
console.log("SMTP MCP Server running. Press Ctrl+C to exit.");
// Handle stdin to keep the process running
process.stdin.resume();
// Handle process termination
process.on('SIGINT', () => {
logToFile("Server shutting down due to SIGINT");
process.exit(0);
});
process.on('SIGTERM', () => {
logToFile("Server shutting down due to SIGTERM");
process.exit(0);
});
} catch (error) {
logToFile(`Server failed to start: ${error}`);
process.exit(1);
}
}
// Run the server
runServer().catch((error) => {
logToFile(`Server failed to start: ${error}`);
process.exit(1);
});