parse-torrent

parse-torrent

Parse a torrent file and return an object of keys/values.

Also works in the browser with browserify! Works well with the buffers returned from bncode.

This module is used by WebTorrent.

install

npm install parse-torrent

usage

var parseTorrent = require('parse-torrent')

var torrent = fs.readFileSync(__dirname + '/torrents/leaves.torrent')
var parsed
try {
  parsed = parseTorrent(torrent)
} catch (e) {
  // the torrent file was corrupt
  console.error(e)
}

console.log(parsed.name) // Prints "Leaves of Grass by Walt Whitman.epub"

The parsed torrent object looks like this:

{
  infoHash: 'd2474e86c95b19b8bcfdb92bc12c9d44667cfa36',
  name: 'Leaves of Grass by Walt Whitman.epub',
  private: false,
  created: new Date('Thu Aug 01 2013 06:27:46 GMT-0700 (PDT)'),
  announce: [
    'http://tracker.thepiratebay.org/announce',
    'udp://tracker.openbittorrent.com:80',
    'udp://tracker.ccc.de:80',
    'udp://tracker.publicbt.com:80',
    'udp://fr33domtracker.h33t.com:3310/announce'
  ],
  files: [
    {
      path: 'Leaves of Grass by Walt Whitman.epub',
      name: 'Leaves of Grass by Walt Whitman.epub',
      length: 362017,
      offset: 0
    }
  ],
  length: 362017,
  pieceLength: 16384,
  lastPieceLength: 1569,
  pieces: [
    '1f9c3f59beec079715ec53324bde8569e4a0b4eb',
    'ec42307d4ce5557b5d3964c5ef55d354cf4a6ecc',
    '7bf1bcaf79d11fa5e0be06593c8faafc0c2ba2cf',
    '76d71c5b01526b23007f9e9929beafc5151e6511',
    '0931a1b44c21bf1e68b9138f90495e690dbc55f5',
    '72e4c2944cbacf26e6b3ae8a7229d88aafa05f61',
    'eaae6abf3f07cb6db9677cc6aded4dd3985e4586',
    '27567fa7639f065f71b18954304aca6366729e0b',
    '4773d77ae80caa96a524804dfe4b9bd3deaef999',
    'c9dd51027467519d5eb2561ae2cc01467de5f643',
    '0a60bcba24797692efa8770d23df0a830d91cb35',
    'b3407a88baa0590dc8c9aa6a120f274367dcd867',
    'e88e8338c572a06e3c801b29f519df532b3e76f6',
    '70cf6aee53107f3d39378483f69cf80fa568b1ea',
    'c53b506159e988d8bc16922d125d77d803d652c3',
    'ca3070c16eed9172ab506d20e522ea3f1ab674b3',
    'f923d76fe8f44ff32e372c3b376564c6fb5f0dbe',
    '52164f03629fd1322636babb2c014b7dae582da4',
    '1363965261e6ce12b43701f0a8c9ed1520a70eba',
    '004400a267765f6d3dd5c7beb5bd3c75f3df2a54',
    '560a61801147fa4ec7cf568e703acb04e5610a4d',
    '56dcc242d03293e9446cf5e457d8eb3d9588fd90',
    'c698de9b0dad92980906c026d8c1408fa08fe4ec'
  ]
}

credit

This was originally based on read-torrent by mafintosh. It's basically a pared-down version of that, but it works in the browser (so WebTorrent can use it), doesn't have huge npm dependencies like request (saving on file size), and it has tests. Thanks for publishing good modules, mafintosh!

license

MIT. Copyright (c) Feross Aboukhadijeh.