sni-reader

Extracts the Server Name Indication from a raw TLS Stream

Usage no npm install needed!

<script type="module">
  import sniReader from 'https://cdn.skypack.dev/sni-reader';
</script>

README

sni-reader

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sni-reader extracts the Server Name Indication from a raw TLS stream. It reads the ClientHello message and extracts the value of the SNI extension if the extension is present.

Usage

var net = require('net')
var sni = require('sni-reader')

const serverNameMap =
  { 'example.com': 8001
  , 'example.net': 8002
  }

net.createServer(function(socket) {
  sni(socket, function(err, serverName) {
    const port = serverNameMap[serverName]
    socket.pipe(net.connect(port)).pipe(socket)
  })
}).listen(80)

Install

npm install -S sni-reader

License

MIT