Extracting vine's video url from tweets, from www.antojame.com code.

twitter.js

var $ = require('jquery')
var _ = require('underscore')
var Twitter = require('twitter-api');

var twitter_consumer = {
  'consumer_key'        : 'XXX',
  'consumer_secret'     : 'XXX'
}
var twitter_token = {
  'access_token_key'    : 'XXX',
  'access_token_secret' : 'XXX'
}

var newTwitter = function() {
  var credentials = _.extend({}, twitter_token, twitter_consumer)
  var twitter = Twitter.createClient()
  twitter.setAuth(
    credentials.consumer_key,
    credentials.consumer_secret,
    credentials.access_token_key,
    credentials.access_token_secret
  )
  return twitter;
}

var mainStream = null;

exports.DEFAULT_SEARCH = 'yum, delicious, comer, comida, antojo, antojame, antojo';
exports.DEFAULT_STREAM = 'food, yum, comida, vegan, antojame, delicious, antojo, pizza, burger, taco, sushi, enchiladas, mole, arroz, comer';
exports.PAYED_SEARCH = 'antojame'
exports.PAYED_STREAM = 'antojame'

exports.initMainStream = function() {
  mainStream = exports.stream()
  return mainStream
}


exports.latests = function(antojo) {
  antojo = antojo || exports.DEFAULT_SEARCH;
  antojo = 'vine.co ' + _(antojo.split(',')).map(function(e){ return e }).join(' OR ')
  console.log(antojo)

  var twitter = newTwitter()
  var deferred = $.Deferred()

  twitter.get( 'search/tweets', {q: antojo}, function(data, error) {
    var vines = []
    var seen = 0;
    if (!error) {
      $.each(data.statuses, function(){
        var promise = getVineFromTweet(this)
        promise.done(function(vine){ vines.push(vine) })
        promise.always(function(){
          seen ++;
          if(seen == data.statuses.length) {
            deferred.resolve(vines)
          }
        })
      })
    } else {
      deferred.reject(error)
    }
  })

  return deferred
}

exports.stream = function(antojo) {
  var twitter = newTwitter();

  antojo = antojo || exports.DEFAULT_STREAM
  var stream = null;
  var query = {
    track: "vine.co AND (" + antojo + ")"
  }
  var cancel = function() {
    twitter.abort()
  }
  var callback = function(){}
  twitter.stream('statuses/filter', query, function(json){
    var tweet = JSON.parse(json);
    getVineFromTweet(tweet).done(callback)
  })

  return {
    cancel: cancel,
    onVine: function(cb) { callback = cb }
  };
}


var getVineFromTweet = function(tweet){
  var deferred = $.Deferred()
  if (tweet.source && tweet.source.match(/vine\.co/)) {
    var tweet = tweet.text.match(/(.*)(https?:\/\/[^ ]+)/)
    var text = tweet[1]
    var vine = tweet[2]
    vine = vine.replace('https:', 'http:')
    $.ajax({
      url: vine,
      success: function(){
        deferred.reject(tweet)
      },
      error: function(data) {
        var vine = data.getResponseHeader('location');
        $.ajax({
          url: vine,
          success: function(data) {
            var body = data.match(/source src=\"([^ ]+)\"/)
            deferred.resolve({ url: body[1], text: text})
          },
          error: function(){
            deferred.reject(tweet)
          }
        })
      }
    })
  } else {
    deferred.reject(tweet)
  }
  return deferred.promise()
}

getVineFromTweet resolves to an object with two properties, url: the mp4 video, and text description.