Magnet parsing API in node

magnet.js

// parse magnet
var magnetUri = require('magnet-uri')
var readTorrent = require('read-torrent')
var humanForamt = require('human-format')
app.get('/magnet', function (req, res) {
  var uri = req.param('u')
  var info = magnetUri(uri)

  readTorrent('http://torrage.com/torrent/' + info.infoHash.toUpperCase() + '.torrent', function(err, torrent) {
    if (err) return res.jsonp(500, { error: err })

    // clean info
    res.jsonp({
      infoHash: torrent.infoHash,
      name: torrent.name,
      files: torrent.files.map(function (item, i) {
        return {
          index: i,
          name: item.name,
          length: item.length,
          length_f: humanForamt(item.length)
        }
      }).filter(function (item, i) {
        // remove padding file
        // BUG? SPEC?
        return !/^_____padding_file_/.test(item.name)
      })
    })
  })
})