offliberty/lib/index.js

simple interface to the offliberty.com download service.

// Dependencies
var request = require('request')
  , cheerio = require('cheerio')
  ;

/**
 *  Offliberty Object
 *  node-offliberty is a simple interface to the offliberty.com
 *  download service.
 *
 */
var Offliberty = {

    /**
     *  offliberty#off (url, callback)
     *  Run a request providing the @url. After the response comes
     *  the @callback function will be called.
     *
     *  Arguments
     *    - url: String representing the the URL you want to get download links for.
     *    - callback: the callback function
     *
     *  Returns the created request.
     *
     */
    off: function(url, callback) {

        var options = {
            url: 'http://offliberty.com/off04.php'
          , method: 'POST'
          , form: { track: url }
        };

        return request(options, function (err, res, body) {

            if (!err && res.statusCode == 200) {
                var $ = cheerio.load(body);
                var download_link = $('.download').attr('href');

                if (download_link == undefined) {
                    var not_possible = body.search('offliberty_giewu_bernardo_new');
                    var not_valid_url = '\n' + $('strong').text().replace(/^\s+/mg, '');

                    not_possible > 0 ?
                        callback('Offliberating this URL is not possible yet.', null)
                      : callback(not_valid_url, null)
                } else {
                    callback(null, $('.download').attr('href'));
                }
            } else {
                callback (err || body);
            }
        });
    }
};

module.exports = Offliberty;