/*
   Copyright (c)  2014 IOnU Security Inc. All rights reserved
   Created April 2014 by Kendrick Webster
 
   K2Proxy/server.js - HTTP server event dispatcher
*/
"use strict";

function trace(m) { // comment or un-comment as needed for debugging:
//    console.log(m);
}
function trace_info(m) { // comment or un-comment as needed for debugging:
    console.log(m);
}

var http = require("http"),
    url = require("url"),
    config = require("./config");

/*
   To do: we could avoid using the formidable library if we parse the HTTP POST
   data here.  With knowledge of maximum packet sizes, we could reject any POST
   requests that exceed a size limit.  This would eliminate the susceptibility
   to one type of DOS attack (sending huge amounts of POST data to exhaust
   server resources).
 
   Another option is to use a different form parsing library (Multiparty):
   http://stackoverflow.com/questions/20553575/how-to-cancel-user-upload-in-formidable-node-js
*/
/*
function start(route, handle) {
    function onRequest(request, response) {
        var postData = "";
        var pathname = url.parse(request.url).pathname;
        console.log("Request for " + pathname + " received.");
        
        request.setEncoding("utf8");
        
        request.addListener("data", function(postDataChunk) {
            postData += postDataChunk;
            console.log("Received POST data chunk '"+
            postDataChunk + "'.");
        });
        
        request.addListener("end", function() {
            route(handle, pathname, response, postData);
        });
    }
    
    http.createServer(onRequest).listen(8888);
    console.log("Server has started.");
}
*/

/*
   Start the server.
      <route> is the router function
      <handle> is an associative array (object) of request handlers
*/
function start(route, handle) {
    function onRequest(request, response) {
        var pathname = url.parse(request.url).pathname;
        trace("Request for " + pathname + " received.");
        route(handle, pathname, response, request);
    }

    http.createServer(onRequest).listen(config.listenPort);
    trace_info("Server has started.");
}

exports.start = start;