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Storrent is a Scala library for dealing with BitTorrent.

It's made so you can embed it in whatever application you'd like, get scrape count for Torrents (see how popular they are), and download torrent files.

The library, when compiled, can also be used as a command line Bittorrent Client ( in the fashion of rtorrent or ctorrent )

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Examples

Metainfo

To get a Torrent metainfo:

import com.submarinerich.storrent.Torrent

var t = Torrent.fromURL("http://releases.ubuntu.com/11.10/ubuntu-11.10-server-amd64.iso.torrent")

Console.log("Torrent Name"+t.name)

Console.log("Torrent cread by "+t.createdBy)

Console.log("info hash "+t.info_hash_hex)

for( tracker <- t.announceList )
  Console.log(" tracker: "+tracker)

for( file <- t.files )
  Console.log(" file: "+file)

You can also get a torrent from a local file:

var t = Torrent.fromFile("Downloads/localUbuntuTorrent.torrent")

Programmatic Downloading

To download (programmatically):

import com.submarinerich.storrent.{Torrent,TorrentClient}

def displayUpdate( f : Double ) : Unit = log.info("percentage downloaded: "+"%03.02f".format(f)+"% (of 100%) ")

var t = Torrent.fromURL("http://releases.ubuntu.com/11.10/ubuntu-11.10-server-amd64.iso.torrent")

var downloadingTo = "download/"

var tc = new TorrentClient(t.get)(downloadingTo)

tc.download(displayUpdate)

tc.cleanupResources

Scraping

As a scraper :

see src/test/scala/TrackerScrapeTestSuite.scala:24
for now it's a little more complicated than the others and requires netty/a thread sleep

Command Line

To download (via command line)

first install (assumes macports, maven, rake, scala29)

sudo rake install

then run:

storrent http://releases.ubuntu.com/11.10/ubuntu-11.10-server-amd64.iso.torrent ~/Downloads/

Features

• resumes competently
• embedded ostrich server to watch the internals (it runs on http://localhost:9000/report/ while you're downloading)

Known Issues

• No seeding (yet).
• It's a little slower than I'd like, but it's still in alpha.

Roadmap

• Seeding
• DHT Bittorrent Protocol Extension Implementation
• Location Aware Protocol Extension Implementation