HTTPS proxy

https_proxy.coffee

net = require('net')
tls = require('tls')
stream = require('stream')

if process.argv.length != 4
  console.log 'Usage: https_proxy host port'
  process.exit(1)

class Printer extends stream.Transform
  _transform: (chunk, encoding, done) =>
    process.stdout.write(chunk)
    @push(chunk)
    done()

server = net.createServer((socket) ->
  opts =
    host: process.argv[2]
    port: process.argv[3] - 0
    rejectUnauthorized: no

  client = tls.connect(opts, ->
    socket.pipe(new Printer()).pipe(client)
    client.pipe(new Printer()).pipe(socket)
  )

  client.on 'end', -> socket.end()
  client.on 'error', -> socket.end()
  socket.on 'end', -> client.end()
  socket.on 'error', -> client.end()
)

port = 1337

server.listen port, '127.0.0.1'

console.log 'Proxy listening on 127.0.0.1:' + port