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import { toUnicode, toASCII } from 'punycode';
import User from '../models/user';
import resolvePerson from './activitypub/resolve-person';
import Resolver from './activitypub/resolver';
import webFinger from './webfinger';
export default async (username, host, option) => {
const usernameLower = username.toLowerCase();
const hostLowerAscii = toASCII(host).toLowerCase();
const hostLower = toUnicode(hostLowerAscii);
let user = await User.findOne({ usernameLower, hostLower }, option);
if (user === null) {
const acctLower = `${usernameLower}@${hostLowerAscii}`;
const finger = await webFinger(acctLower, acctLower);
const self = finger.links.find(link => link.rel && link.rel.toLowerCase() === 'self');
if (!self) {
throw new Error();
}
user = await resolvePerson(new Resolver(), self.href, acctLower);
}
return user;
};
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