Simple, http-based node.js proxy server, connects clients to node.js applications based on the domain name used in the request. Not currently working.

apps.json

{"apps" : 
	[
		{
			"name": "fieldlord",
			"domains": ["fieldlord.chaos-kitten.com","fieldlord"],
			"port": "1337"
		}
	]
}

server.js

var http = require('http'),
	fs = require('fs');
	
var apps = require('./apps').apps;	

fs.watchFile('./apps.json',function(c,p) {
	apps = require('./apps').apps;
});

var app = http.createServer(function(request,response) {
	var found = false;
	for(i in apps) {
		for(j in apps[i].domains) {
			if(apps[i].domains[j] === request.headers.host) {
				found = true;
				var options = {
					hostname: request.headers.host,
					port: apps[i].port,
					path: request.url,
					method: request.method
				};
				var proxy_request = http.request(options,function(proxy_response) {
					response.writeHead(proxy_response.statusCode,proxy_response.headers);
					proxy_response.on('data',function(chunk) {
						response.write(chunk,'binary');
					});
					proxy_response.on('end',function() {
						response.end();
					});
				});
				proxy_request.on('error',function() {
					response.writeHead(500);
					response.end('500 Error: application ' + request.headers.host + ' not available (not running?).');
				});
				request.on('data',function(chunk) {
					proxy_request.write(chunk,'binary');
				});
				request.on('end',function() {
					proxy_request.end();
				});
			}
		}
	}
	if(!found) {
		response.writeHead(404);
		response.end('Application information could not be retrieved for: ' + request.headers.host);
	}
});

app.on('error',function(err) {
	console.log("Warning: could not bind to port 80, attempting rebind on port 8080 (are you root?): " + err.message);
	app.listen(8080);
});

app.listen(80);

Changlog:
r1: initial
r2: stopped the infinite wait bug, but responses are empty (not connecting correctly to underlying app?)