it-tools-mcp
Version:
MCP-compliant server access to over 100 IT tools and utilities commonly used by developers, system administrators, and IT professionals.
53 lines (52 loc) • 2.18 kB
JavaScript
import { z } from "zod";
export function registerTelnet(server) {
server.registerTool("telnet", {
inputSchema: {
target: z.string().describe("Host to connect to"),
port: z.number().describe("Port number")
},
// VS Code compliance annotations
annotations: {
title: "Telnet",
readOnlyHint: false
}
}, async ({ target, port }) => {
return new Promise(async (resolve) => {
try {
const net = (await import('net')).default;
const socket = new net.Socket();
let connected = false;
let banner = '';
socket.setTimeout(2000);
socket.connect(port, target, () => {
connected = true;
});
socket.on('data', (data) => {
banner += data.toString();
// If we get a banner, close immediately
socket.end();
});
socket.on('timeout', () => {
socket.destroy();
if (!connected) {
resolve({ content: [{ type: "text", text: `Telnet failed: Connection timed out` }] });
}
else {
resolve({ content: [{ type: "text", text: `Telnet to ${target}:${port} succeeded.${banner ? '\nBanner: ' + banner.trim() : ''}` }] });
}
});
socket.on('error', (err) => {
resolve({ content: [{ type: "text", text: `Telnet failed: ${err.message}` }] });
});
socket.on('close', (hadError) => {
if (connected) {
resolve({ content: [{ type: "text", text: `Telnet to ${target}:${port} succeeded.${banner ? '\nBanner: ' + banner.trim() : ''}` }] });
}
});
}
catch (error) {
resolve({ content: [{ type: "text", text: `Telnet failed: ${error instanceof Error ? error.message : error}` }] });
}
});
});
}