simple https to http proxy. useful for meteor projects with force-ssl

simple proxy

var fs = require('fs');
var https = require('https');
var httpProxy = require('http-proxy');

if (!process.env.PROXY_TO_HOST) {
  throw new Error('Must set environment variable PROXY_TO_HOST with destination address');
}

if (!process.env.PROXY_TO_PORT) {
  throw new Error('Must set environment variable PROXY_TO_PORT with destination port');
}

if (!process.env.PROXY_PORT) {
  throw new Error('Must set environment variable PROXY_PORT with port for proxy')
}

if (!process.env.CERT) {
  throw new Error('Must set environment variable CERT with path to cert.pem file');
}

if (!process.env.KEY) {
  throw new Error('Must set environment variable KEY with path to key.pem file');
}

var options = {
  https: {
    key: fs.readFileSync(process.env.KEY, 'utf8'),
    cert: fs.readFileSync(process.env.CERT, 'utf8')
  }
};

var proxy = new httpProxy.HttpProxy({
  target: {
    host: process.env.PROXY_TO_HOST,
    port: process.env.PROXY_TO_PORT
  }
});
https.createServer(options.https, function (req, res) {
  proxy.proxyRequest(req, res)
}).listen(process.env.PROXY_PORT);
console.log("Proxy listening on " + process.env.PROXY_PORT);