web.js

// Generated by CoffeeScript 1.8.0
(function() {
  var app, convert_and_send, express, ffmpeg, fs, http, mkdirp, path, qs, server, writeToFile, ytdl;

  express = require('express');

  ffmpeg = require('fluent-ffmpeg');

  http = require('http');

  ytdl = require('ytdl');

  path = require('path');

  fs = require('fs');

  qs = require('querystring');

  mkdirp = require('mkdirp');

  app = express();

  server = http.createServer(app);

  app.set('port', process.env.PORT || 3000);

  app.set('views', "" + __dirname + "/views");

  app.set('view engine', 'jade');

  app.use(express["static"](__dirname + "/public"));

  server.listen(app.get('port'), function() {
    return console.log("Express server listening on port " + (app.get('port')));
  });

  app.get('/', function(req, res) {
    console.log("rendering");
    return res.render('index');
  });

  app.get('/convert', function(req, res) {
    var url;
    res.contentType('mp3');
    url = req.query.url;
    console.log(url);
    return ytdl.getInfo(url, function(err, info) {
      var pathToMovie, size;
      if (err != null) {
        console.log(err.message);
        return;
      }
      pathToMovie = path.join(__dirname, 'public', 'tmp', info.video_id);
      console.log(pathToMovie);
      console.log("downloading and converting");
      size = 0;
      return mkdirp(pathToMovie, function(err) {
        var download, file;
        file = fs.createWriteStream(pathToMovie + "/video.mp4");
        download = ytdl(url);
        download.pipe(file, {
          end: false
        });
        download.on('data', function(chunk) {
          size += chunk.length;
          return console.log(size);
        });
        return download.on('end', function() {
          console.log("Download done");
          return convert_and_send(pathToMovie, res, info.video_id);
        });
      });
    });
  });

  convert_and_send = function(pathToMovie, res, videoId) {
    console.log("converting");
    return new ffmpeg(pathToMovie + "/video.mp4").setFfmpegPath(__dirname + "/ffmpeg").audioCodec('libmp3lame').format('mp3').on('end', function() {
      console.log("end");
      return res.status(200).send("/tmp/" + videoId + "/music.mp3");
    }).saveToFile(pathToMovie + "/music.mp3", {
      end: true
    });
  };

  writeToFile = function(name) {
    return fs.appendFile('log.txt', name);
  };

}).call(this);