gistfile1.js

var jsdom     = require('jsdom'),
    optimist  = require('optimist'),
    prompt    = require('prompt'),
    util      = require('util'),
    sprintf   = require('sprintf').sprintf,
    fs        = require('fs'),
    http      = require('http'),
    url       = require('url');


var argv = optimist.argv;
var baseURL = 'http://www.nzbsearch.net'


function start(terms) {
  var url = sprintf('%s/search.aspx?&st=1&q=%s', baseURL, terms.join('+'));

  jsdom.env(url,
    ['http://code.jquery.com/jquery-1.7.2.min.js'],
    function(errors, window) {
      var $ = window.$;
      var rows = $('tr.rgRow, tr.rgAltRow');
      var results = $.map(rows, function(row) {
        var row = $(row);
        var link = row.find('td:eq(0) > span > a:first-child');

        return {
          'title': link.text(),
          'path': link.attr('href'),
          'size': row.find('td:eq(1) span').text()
        }
      });

      select(results);
    }
  );
}


function display(results) {
  util.puts.apply(null, results.map(function(result, index) {
    var title = result.title.substring(0, 100);
    if (title.length < result.title.length) {
      title = sprintf('%s...', title.substring(0, 97));
    }
    return sprintf('%2d: %-100s %s', index+1, title, result.size);
  }));
}


function select(results) {
  display(results);

  var selectionField = {
    name: 'selection',
    description: 'Selection',
    pattern: /\d+/,
    conform: function(value) {
      var number = parseInt(value);
      return number <= results.length;
    }
  }
  prompt.message = 'NZBSearch'.green;
  prompt.start();
  prompt.get([selectionField], function(err, result) {
    var index = parseInt(result.selection);
    fetch(results[index-1]);
  });
}


function fetch(collection) {
  var parsedURL = url.parse(baseURL);
  var stream = fs.createWriteStream(sprintf('%s.nzb', argv._.join('.')));

  http.get({hostname: parsedURL.hostname, path: collection.path}, function(response) {
    response.on('data', function(chunk) {
      stream.write(chunk);
    });
  });
}


start(argv._);