* Bencode [spec](http://www.bittorrent.org/beps/bep_0003.html#bencoding)
 * [x] decoding
 * [x] encoding
* Tracker
 * [ ] udp [spec](http://www.bittorrent.org/beps/bep_0015.html)
 * [x] http [spec](http://www.bittorrent.org/beps/bep_0003.html#trackers)
* Metainfo
 * [ ] torrent files [spec](https://wiki.theory.org/BitTorrentSpecification#Metainfo_File_Structure)
 * [ ] magnet links