21 lines
417 B
JavaScript
21 lines
417 B
JavaScript
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const express = require('express')
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const { Resolver } = require('dns').promises
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const app = express()
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const r = new Resolver()
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app.get('/', async (req, res) => {
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res.header('Content-type: text/plain')
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const ip = req.connection.remoteAddress
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let host
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try {
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host = await r.reverse(ip)
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} catch(err) {
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console.log(err.message)
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host = 'ERR'
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}
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res.send(`${ip}\n${host}\n`)
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})
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app.listen(18080)
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