httpdispatcher

httpdispatcher - basic dispatcher for node.js
=======

httpdispatcher is a simple class allows developer to have a clear dispatcher for dynamic pages and static resources.
Classes http.ServerRequest and http.ServerResponse earns new params property containing a map of received HTTP parameters.
Using httpdispatcher is pretty simple:

``js
var HttpDispatcher = require('../httpdispatcher');
var http = require('http');
var dispatcher = new HttpDispatcher();

dispatcher.setStatic('/resources');
dispatcher.setStaticDirname('static');

dispatcher.onGet("/page1", function(req, res) {
res.writeHead(200, {'Content-Type': 'text/plain'});
res.end('Page One');
});

dispatcher.onPost("/page2", function(req, res) {
res.writeHead(200, {'Content-Type': 'text/plain'});
res.end('Page Two');
});

dispatcher.beforeFilter(/\//, function(req, res, chain) { //any url
console.log("Before filter");
chain.next(req, res, chain);
});

dispatcher.afterFilter(/\//, function(req, res, chain) { //any url
console.log("After filter");
chain.next(req, res, chain);
});

dispatcher.onError(function(req, res) {
res.writeHead(404);
res.end();
});

http.createServer(function (req, res) {
dispatcher.dispatch(req, res);
}).listen(1337, '127.0.0.1');


/*
GET /page1 => 'Page One'
POST /page2 => 'Page Two'
GET /page3 => 404
GET /resources/images-that-exists.png => Image resource
GET /resources/images-that-does-not-exists.png => 404
*/
`

request and response
---------

Every listeners is called with two parameters request and response.

Request object is an instance of http.ClientRequest with some custom properties:

- bodyBuffer : Buffer (available only on POST request)
- body : String (available only on POST request)
- params : Object

Response object is an instance of http.ServerResponse`.