bun-activitypub/src/index.ts

import { ACCOUNT, ACTOR, HOSTNAME, PORT } from "./env";
import admin from './admin'
import activitypub from "./activitypub";
import { fetchObject } from "./request";

const server = Bun.serve({
  port: 3000,
  fetch(req): Response | Promise<Response> {
    const url = new URL(req.url)

    console.log(`${new Date().toISOString()} ${req.method} ${req.url}`)

    if(req.method === "GET" && url.pathname === "/.well-known/webfinger") {
      const resource = url.searchParams.get("resource")

      if(resource !== `acct:${ACCOUNT}@${HOSTNAME}`) return new Response("", { status: 404 })

      return Response.json({
        subject: `acct:${ACCOUNT}@${HOSTNAME}`,
        links: [
          {
            rel: "self",
            type: "application/activity+json",
            href: ACTOR,
          },
        ],
      }, { headers: { "content-type": "application/activity+json" }})
    }
    else if(req.method === "GET" && url.pathname === "/fetch") {
      const object_url = url.searchParams.get('url')
      if(!object_url) return new Response("No url supplied", { status: 400})

      return fetchObject(ACTOR, object_url)
    }

    return admin(req) || activitypub(req) || new Response("How did we get here?", { status: 404 })
  },
});
  
console.log(`Listening on http://localhost:${server.port} ...`);