| 1 | 'use strict'
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| 2 |
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| 3 | const http = require('http')
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| 4 | const https = require('https')
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| 5 | const server = http.createServer(handler)
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| 6 | const port = +process.argv[2]
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| 7 | const prefix = process.argv[3]
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| 8 | const upstream = process.argv[4]
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| 9 | var calls = 0
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| 10 |
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| 11 | server.listen(port)
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| 12 |
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| 13 | function handler (req, res) {
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| 14 | if (req.url.indexOf(prefix) !== 0) {
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| 15 | throw new Error('request url [' + req.url + '] does not start with [' + prefix + ']')
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| 16 | }
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| 17 |
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| 18 | var upstreamUrl = upstream + req.url.substring(prefix.length)
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| 19 | https.get(upstreamUrl, function (ures) {
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| 20 | ures.on('end', function () {
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| 21 | if (++calls === 2) {
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| 22 | server.close()
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| 23 | }
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| 24 | })
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| 25 | ures.pipe(res)
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| 26 | })
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| 27 | }
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