possumbot/auth-fetch.js

import express from 'express';
import fs from 'fs';

import env from 'dotenv';
env.config();

const domain = process.env.AP_FETCH_DOMAIN;
const pubkey = fs.readFileSync('data/publickey.crt', 'utf8');

const app = express();

const notice = fs.readFileSync('auth-fetch-notice.txt', 'utf8');

const actor = {
	'@context': [
		'https://www.w3.org/ns/activitystreams',
		'https://w3id.org/security/v1'
	],

	'id': 'https://' + domain + '/actor',
	'type': 'Person',
	'preferredUsername': 'possumbot',
	'inbox': 'https://' + domain + '/inbox',

	'publicKey': {
		'id': 'https://' + domain + '/actor#main-key',
		'owner': 'https://' + domain + '/actor',
		'publicKeyPem': pubkey
	}
}

const webfinger = {
	'subject': 'acct:possumbot@' + domain + '',

	'links': [
		{
			'rel': 'self',
			'type': 'application/activity+json',
			'href': 'https://' + domain + '/actor'
		}
	]
}

app.get('/', (req, res) => {
  res.setHeader('content-type', 'text/plain');
  res.write(notice);
});

app.get('/actor', (req, res) => {
  res.writeHead(200, { 'Content-Type': 'application/activity+json' });
  res.write(JSON.stringify(actor));
  res.end();
});

app.get('/.well-known/webfinger', (req, res) => {
  res.writeHead(200, { 'Content-Type': 'application/json' });
  res.write(JSON.stringify(webfinger));
  res.end();
});

app.listen(process.env.AP_FETCH_PORT);

export default true;