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namae/api/services/jsorg/[query].ts

40 lines
1.0 KiB
TypeScript

import { VercelRequest, VercelResponse } from '@vercel/node';
import { VM } from 'vm2';
import { fetch, send, sendError } from '../../../util/http';
export default async function handler(
req: VercelRequest,
res: VercelResponse
): Promise<void> {
const { query } = req.query;
if (!query || typeof query !== 'string') {
return sendError(res, new Error('No query given'));
}
if (!/([a-zA-Z0-9_-])\.js\.org/.test(query)) {
return sendError(res, new Error('Invalid format'));
}
const cname = query.replace(/\.js\.org$/, '');
try {
// Get cnames from js.org repo
const source = await fetch(
`https://raw.githubusercontent.com/js-org/js.org/master/cnames_active.js`,
'GET'
).then((res) => res.text());
const vm = new VM();
vm.run(source);
const cnames = Object.keys(vm.sandbox.cnames_active);
if (cnames.includes(cname)) {
send(res, { availability: false });
} else {
send(res, { availability: true });
}
} catch (err) {
sendError(res, err as any);
}
}