node-http-proxy/index.js

58 lines
1.5 KiB
JavaScript

var net = require('net');
var http = require('http');
var fs = require('fs');
var winston = require("winston");
var rp = require("request-promise");
// Rudimentary logger.
// TODO - Make this filename configurable.
const logger = winston.createLogger({
transports: [
new winston.transports.File({filename: 'proxy.log'})
]
});
/**
* Connection handler for proxy, forward request and then pipe response
* back to the client.
*
* @param {IncomingMessage} request The request from the client
* @param {OutgoingMessage} response The response to write back to the client
*/
const processRequest = (request, response) => {
let body = [];
// Use closure for request.
let req = request;
let res = response;
// Set up a data handler for the socket connection.
request.on("data", (chunk) => {
body.push(chunk);
})
// Set up an end handler for the socket connection.
request.on("end", () => {
body = Buffer.concat(body).toString();
logger.info({message: "Got a message!"});
logger.info({message: "Requesting: " + req.url});
// Complicated line of JS to forward request, and pipe it to the
// response object.
req.pipe(http.request(req.url, (resp) => {resp.pipe(res)}));
});
}
function startServer() {
// Start the server, set up data and end handlers.
var server = http.createServer(processRequest);
// Start the server
server.listen(8124, () => {
console.log("Server bound.");
});
return server;
}
startServer();