socket.io/lib/transports/flashsocket.js

var Websocket = require('./websocket'),
		net = require('net'),
		listeners = [],

Flashsocket = module.exports = function(){};

sys.inherits(HTMLFile, Websocket);

Flashsocket.httpUpgrade = true;

Flashsocket.init = function(listener){
	listeners.push(listener);
};

try {
	net.createServer(function(socket){
		socket.write('<?xml version="1.0"?>\n');
		socket.write('<!DOCTYPE cross-domain-policy SYSTEM "http://www.macromedia.com/xml/dtds/cross-domain-policy.dtd">\n');
		socket.write('<cross-domain-policy>\n');

		listeners.forEach(function(l){
			[].concat(l.options.origins).forEach(function(origin){
				var parts = origin.split(':');
				socket.write('<allow-access-from domain="' + parts[0] + '" to-ports="'+ parts[1] +'"/>\n');
			});
		});

		socket.write('</cross-domain-policy>\n');
		socket.end();	
	}).listen(843);
} catch(e){}