2020-08-31 08:41:53 +09:00
|
|
|
import isURL from 'validator/lib/isURL';
|
|
|
|
import { send, sendError, fetch } from '../../../util/http';
|
2021-07-30 15:53:42 +09:00
|
|
|
import { VercelRequest, VercelResponse } from '@vercel/node';
|
2019-08-27 03:15:35 +09:00
|
|
|
|
2019-12-24 01:57:07 +09:00
|
|
|
export default async function handler(
|
2021-07-30 15:53:42 +09:00
|
|
|
req: VercelRequest,
|
|
|
|
res: VercelResponse
|
2019-12-24 01:57:07 +09:00
|
|
|
): Promise<void> {
|
2022-07-10 09:59:16 +09:00
|
|
|
const { query, existIf = '404' } = req.query;
|
|
|
|
|
|
|
|
const availableStatus = (existIf as string).split(',').map((s) => s.trim());
|
2019-08-27 03:15:35 +09:00
|
|
|
|
2020-06-19 16:15:53 +09:00
|
|
|
if (!query || typeof query !== 'string') {
|
2020-08-31 08:41:53 +09:00
|
|
|
return sendError(res, new Error('no query given'));
|
2019-08-27 03:15:35 +09:00
|
|
|
}
|
|
|
|
|
2020-06-11 22:00:16 +09:00
|
|
|
if (!isURL(query)) {
|
2020-08-31 08:41:53 +09:00
|
|
|
return sendError(res, new Error('Invalid URL: ' + query));
|
2019-08-27 03:15:35 +09:00
|
|
|
}
|
|
|
|
|
|
|
|
try {
|
2020-08-31 08:41:53 +09:00
|
|
|
const response = await fetch(`https://${query}`);
|
2022-07-10 09:59:16 +09:00
|
|
|
const availability = availableStatus.includes(response.status.toString());
|
2020-08-31 08:41:53 +09:00
|
|
|
send(res, { availability });
|
2022-03-09 15:16:54 +09:00
|
|
|
} catch (err: any) {
|
2021-07-30 15:53:42 +09:00
|
|
|
if ((err as any).code === 'ENOTFOUND') {
|
2020-08-31 08:41:53 +09:00
|
|
|
return send(res, { availability: true });
|
2019-12-10 18:33:39 +09:00
|
|
|
}
|
2022-03-09 15:16:54 +09:00
|
|
|
sendError(res, err);
|
2019-08-27 03:15:35 +09:00
|
|
|
}
|
|
|
|
}
|