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namae/api/services/existence.ts

33 lines
792 B
TypeScript

import {send, sendError, fetch, NowRequest, NowResponse} from '../util/http';
export default async function handler(
req: NowRequest,
res: NowResponse,
): Promise<void> {
const {query} = req.query;
if (!query) {
return sendError(res, new Error('no query given'));
}
if (
!/^[(http(s)?)://(www.)?a-zA-Z0-9@:%._+~#=]{2,256}\.[a-z]{2,6}\b([-a-zA-Z0-9@:%_+.~#?&//=]*)$/.test(
query,
)
) {
return sendError(res, new Error('Invalid characters'));
}
try {
const response = await fetch(`https://${query}`);
const availability = response.status === 404;
send(res, {availability});
} catch (err) {
console.log(err.code);
if (err.code === 'ENOTFOUND') {
return send(res, {availability: true});
}
sendError(res, err);
}
}