import express, { Router } from "express"; import fetch from "node-fetch"; const domain = process.env.DOMAIN; export default function webfinger(router: Router) { router.get("/.well-known/webfinger", (req, res) => { res.json({ subject: `acct:blog@${domain}`, aliases: [`https://${domain}/ap/actor`], links: [ { rel: "self", type: "application/activity+json", href: `https://${domain}/ap/actor`, } ] } as WebfingerResult); res.end(); }); } export async function queryWebfinger(acct: string): Promise { if (acct.startsWith("@")) { acct = acct.substring(1); } const parts = acct.split("@"); if (parts.length !== 2) { throw "Invalid account"; } const response = await fetch(`https://${parts[1]}/.well-known/webfinger?resource=${acct}`); const json = await response.json(); return json as WebfingerResult; } export interface WebfingerResult { subject: string; aliases: string[]; links: Array<{rel: string, type: string, href: string} | {rel: "https://ostatus.org/schema/1.0/subscribe", template: string}>; }