import parseAcct from '../../../acct/parse'; import User from '../../../models/user'; import config from '../../../config'; import follow from '../../../services/following/create'; export default async (actor, activity): Promise => { const prefix = config.url + '/@'; const id = activity.object.id || activity.object; if (!id.startsWith(prefix)) { return null; } const { username, host } = parseAcct(id.slice(prefix.length)); if (host !== null) { throw new Error(); } const followee = await User.findOne({ username, host }); if (followee === null) { throw new Error(); } await follow(actor, followee, activity); };