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namae/api/services/existence.ts

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2019-08-30 16:40:22 +09:00
import { send, sendError, fetch, NowRequest, NowResponse } from '../util/http'
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export default async function handler(req: NowRequest, res: NowResponse) {
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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) {
sendError(res, err)
}
}