xserver/directive.js

A simple http server.

var mime = require("mime");
var getFile = require("./getfile");

function Directive ( request, response ) {
  this.request = request;
  this.response = response;
  this.sent = false;
  this.headers = {};
  this.status = 200;
  this.url = {};
  var pieces = request.url.split("?");
  this.url.value = unescape(pieces[0]);
  this.url.segments = this.url.value.split(/\//g);
};

Directive.prototype.setStatus = function( status ) {
  this.status = parseInt(status) || 500;
};

Directive.prototype.setHeader = function( property, value ) {
  this.headers[property] = value;
};

Directive.prototype.setContentType = function( value ) {
  this.setHeader("Content-Type", mime.lookup(value));
};

Directive.prototype.setData = function( data, encoding ) {
  this.data = data != undefined ? data : "";
  this.encoding = encoding ? encoding : "utf8";
};

Directive.prototype.send = function () {
  this.response.writeHead(this.status, this.headers);
  if ( this.data && this.encoding ) {
    this.response.write(this.data, this.encoding);
  }
  this.response.end();
  this.sent = true;
};

Directive.prototype.sendStatus = function( status ) {
  this.setStatus(status);
  this.send();
};

Directive.prototype.sendText = function ( message, status ) {
  this.setContentType("txt");
  this.setData(message);
  this.setStatus(status || 200);
  this.send();
};

Directive.prototype.sendObject = function ( obj, status ) {
  this.setContentType("json");
  this.setData(JSON.stringify(obj));
  this.setStatus(status || 200);
  this.send();
}

Directive.prototype.prepareFile = function ( path, callback ) {
  getFile(path, (function ( err, data ) {
    status = 200;
    switch ( err ) {
      case "notfound":
        status = 404;
        break;
      case "notfile":
        status = 403;
        break;
      case "unreadablefile":
        status = 500;
        break;
    }

    this.setStatus(status);
    this.setContentType(path);
    this.setData(data, "binary");
    callback(err);
  }).bind(this));
}

Directive.prototype.getBodyObject = function ( ) {
  return this.body ? JSON.parse(this.body) : {};
};

module.exports = Directive;