yumechi-no-kuni/src/server/webfinger.ts
2018-04-02 13:44:32 +09:00

47 lines
1.2 KiB
TypeScript

import config from '../config';
import parseAcct from '../acct/parse';
import User from '../models/user';
const express = require('express');
const app = express();
app.get('/.well-known/webfinger', async (req, res) => {
if (typeof req.query.resource !== 'string') {
return res.sendStatus(400);
}
const resourceLower = req.query.resource.toLowerCase();
const webPrefix = config.url.toLowerCase() + '/@';
let acctLower;
if (resourceLower.startsWith(webPrefix)) {
acctLower = resourceLower.slice(webPrefix.length);
} else if (resourceLower.startsWith('acct:')) {
acctLower = resourceLower.slice('acct:'.length);
} else {
acctLower = resourceLower;
}
const parsedAcctLower = parseAcct(acctLower);
if (![null, config.host.toLowerCase()].includes(parsedAcctLower.host)) {
return res.sendStatus(422);
}
const user = await User.findOne({ usernameLower: parsedAcctLower.username, host: null });
if (user === null) {
return res.sendStatus(404);
}
return res.json({
subject: `acct:${user.username}@${config.host}`,
links: [
{
rel: 'self',
type: 'application/activity+json',
href: `${config.url}/@${user.username}`
}
]
});
});
export default app;