Full-featured BitTorrent client package and utilities
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Matt Joiner 9f9b02e3dd
cmd/torrent: Respect default client max unverified bytes
2022-05-12 10:37:36 +10:00
.circleci Don't bench with -race 2021-02-24 13:48:05 +11:00
.github Fix webrtc logging for JS build 2022-04-11 14:53:02 +10:00
analysis Add peer upload order analysis 2021-01-28 16:31:13 +11:00
bencode Add bencode.Bytes.GoString 2022-03-09 20:57:23 +11:00
cmd cmd/torrent: Respect default client max unverified bytes 2022-05-12 10:37:36 +10:00
common Got file storage working with segment index 2020-06-01 00:14:51 +10:00
fs fs/test.sh: Fail if hash does not match 2022-02-10 09:20:23 +11:00
internal Extract chansync to github.com/anacrolix/chansync 2021-06-07 13:01:40 +10:00
iplist gofumpt 2021-11-08 14:47:01 +11:00
logonce Add a prefix to logonce logger output 2018-09-03 11:48:31 +10:00
metainfo Use Info.BestName in a few more places 2022-03-18 09:15:50 +11:00
mmap_span gofumpt 2021-11-08 14:47:01 +11:00
mse gofumpt -extra 2021-12-23 14:00:00 +11:00
peer_protocol gofumpt -extra 2021-12-23 14:00:00 +11:00
request-strategy Reuse piece order state for request ordering 2022-05-12 10:34:28 +10:00
segments gofumpt 2021-11-08 14:47:01 +11:00
smartban Implement smart ban using generics 2022-01-22 18:43:04 +11:00
storage Rearrange transfer tests so build directives are applied by the right packages 2022-03-17 16:08:00 +11:00
test Rearrange transfer tests so build directives are applied by the right packages 2022-03-17 16:08:00 +11:00
testdata Add sintel.torrent 2021-12-12 15:01:50 +11:00
tracker Quote http tracker error response body 2022-03-02 10:49:55 +11:00
typed-roaring Add and use typed roaring bitmap 2022-05-09 12:05:50 +10:00
types Extract request strategy stuff into a separate module 2021-06-07 13:01:39 +10:00
util/dirwatch test: use `T.TempDir` to create temporary test directory (#718) 2022-02-02 18:26:46 +11:00
version Update and expose default client identifiers 2021-06-25 11:29:59 +10:00
webseed WebSeed PathEscaper API tweaks 2022-04-26 10:46:01 +10:00
webtorrent Fix webrtc logging for JS build 2022-04-11 14:53:02 +10:00
.deepsource.toml Update .deepsource.toml 2022-02-21 21:23:20 +00:00
.gitignore Ignore request strategy run gobs and envrcs 2021-10-19 14:08:56 +11:00
.golangci.yml Update staticcheck go target to 1.16 2021-08-19 16:06:24 +10:00
LICENSE
NOTES.md Add NOTES 2021-09-20 12:31:44 +10:00
README.md Revert "Link to godocs.io for documentation" 2021-12-12 17:20:02 +11:00
SECURITY.md Create SECURITY.md 2021-05-14 10:17:19 +10:00
TODO Update TODO file 2018-04-14 21:44:50 +10:00
bad_storage.go Rework storage.TorrentImpl to support shared capacity key 2021-06-07 13:01:39 +10:00
bep40.go Move IpPort to missinggo 2018-11-16 10:35:30 +11:00
bep40_test.go fixes various vet errors 2020-01-14 09:09:09 +10:00
callbacks.go Expose more callbacks and Request and ChunkSpec 2021-01-28 14:23:22 +11:00
client-nowasm_test.go Revert "Remove old-style build tags" 2021-11-01 11:26:58 +11:00
client.go Disable update requests timer 2022-05-12 10:37:36 +10:00
client_test.go [client] Handle nil IP in badPeerAddr() 2022-04-26 10:59:12 +10:00
config.go Default 64 MiB max unverified bytes 2022-05-12 10:34:28 +10:00
conn_stats.go Track chunks read for webseed peers too 2021-06-07 13:01:40 +10:00
deferrwl.go lockWithDeferreds: inlineable Unlock() (#603) 2021-09-17 13:08:00 +10:00
dht.go Don't wait for DHT pings 2021-12-23 14:00:00 +11:00
dialer.go Tidy up the Dialer interface 2021-06-21 13:29:26 +10:00
doc.go BEP27 isn't implemented 2020-05-24 17:47:16 +10:00
example_test.go
file.go Expose File.{Begin,End}PieceIndex 2022-03-17 14:59:02 +11:00
file_test.go gofumpt 2021-11-08 14:47:01 +11:00
global.go go fmt ./... 2021-10-05 17:48:52 +11:00
go.mod Switch requestState to be a slice 2022-05-12 10:34:28 +10:00
go.sum Switch requestState to be a slice 2022-05-12 10:34:28 +10:00
handshake.go Add the ReceiveEncryptedHandshakeSkeys callback 2020-11-05 13:28:45 +11:00
handshake_test.go Support AllowedFast and enable fast extension 2018-02-05 00:18:38 +11:00
ipport.go Possible fix for GitHub code scanning warning 2021-05-14 15:43:13 +10:00
issue97_test.go test: use `T.TempDir` to create temporary test directory (#718) 2022-02-02 18:26:46 +11:00
issue211_test.go Fix leaked mmap storage in test 2021-12-16 14:19:21 +11:00
listen.go Optimize `LoopbackListenHost()` (#615) 2021-09-14 21:54:37 +10:00
main_test.go Replace internal/tmproot with Testing.TB.TempDir 2021-02-22 14:30:09 +11:00
misc.go Dynamic outbound max requests 2021-12-24 08:55:57 +11:00
misc_test.go Drop bradfitz/iter dependency (#605) 2021-09-14 13:46:50 +10:00
network_test.go Pass client logger to anacrolix/go-libutp sockets (#722) 2022-02-15 16:18:32 +11:00
networks.go Improve network handling and only listen networks we will use 2018-11-28 10:30:21 +11:00
ordered-bitmap.go Retain peer local request ordering 2022-05-09 12:05:50 +10:00
peer-conn-msg-writer.go Avoid reallocating keep alive timer on each pass 2021-08-22 20:05:53 +10:00
peer-impl.go Support banning webseeds 2022-03-11 14:05:31 +11:00
peer.go Dynamic outbound max requests 2021-12-24 08:55:57 +11:00
peer_info.go Don't expose Peer network through RemoteAddr 2021-01-25 15:49:48 +11:00
peer_infos.go Rename Peer to PeerInfo, and unexport PeerInfos 2020-05-29 19:44:48 +10:00
peerconn.go Disable update requests timer 2022-05-12 10:37:36 +10:00
peerconn_test.go Add and use typed roaring bitmap 2022-05-09 12:05:50 +10:00
peerid.go Rename Peer to PeerInfo, and unexport PeerInfos 2020-05-29 19:44:48 +10:00
peerid_test.go Change a bunch of Stringer and status stuff 2018-02-05 17:47:47 +11:00
pending-requests.go Revert "Use a flat slice for pending request counts" 2021-11-25 22:55:02 +11:00
pending-requests_test.go Comment out pending requests tests and asserts 2021-11-25 22:59:20 +11:00
pex.go PEX: remove workaround for krpc marshaller 2021-12-11 19:44:42 +00:00
pex_test.go PEX: fluid event log 2021-12-12 00:27:28 +11:00
pexconn.go PEX: fluid event log 2021-12-12 00:27:28 +11:00
pexconn_test.go Fix race in TextPexConnState 2021-12-16 14:19:21 +11:00
piece.go Move undirtiedChunksIter into its own file 2022-05-09 12:51:01 +10:00
piecestate.go Track piece marking state separately 2020-11-21 13:44:23 +11:00
portfwd.go Big logging cleanup to improve experience from README 2021-05-04 12:44:51 +10:00
prioritized_peers.go Rename Peer to PeerInfo, and unexport PeerInfos 2020-05-29 19:44:48 +10:00
prioritized_peers_test.go Rename Peer to PeerInfo, and unexport PeerInfos 2020-05-29 19:44:48 +10:00
protocol.go Expose more callbacks and Request and ChunkSpec 2021-01-28 14:23:22 +11:00
ratelimitreader.go Fix download rate limiter and add test 2018-01-28 15:28:45 +11:00
reader.go Fix races around Reader and Torrent.Drop when Torrent is closed 2022-04-11 15:44:24 +10:00
reader_test.go Replace internal/tmproot with Testing.TB.TempDir 2021-02-22 14:30:09 +11:00
request-strategy-impls.go Add and use typed roaring bitmap 2022-05-09 12:05:50 +10:00
requesting.go Disable update requests timer 2022-05-12 10:37:36 +10:00
requesting_test.go Shuffle duplicate requests 2021-12-12 16:56:00 +11:00
rlreader_test.go Drop bradfitz/iter dependency (#605) 2021-09-14 13:46:50 +10:00
roaring.go Add and use typed roaring bitmap 2022-05-09 12:05:50 +10:00
smartban.go Switch to external anacrolix/generics 2022-01-22 18:43:04 +11:00
socket.go Pass client logger to anacrolix/go-libutp sockets (#722) 2022-02-15 16:18:32 +11:00
sources.go Export Torrent.UseSources 2022-03-15 13:42:00 +11:00
spec.go WebSeed PathEscaper API tweaks 2022-04-26 10:46:01 +10:00
struct_test.go Export Peer 2021-01-25 15:49:48 +11:00
t.go Prefer UTF-8 fields when present 2022-03-17 15:07:10 +11:00
test_test.go Add TestHaveAllThenBitfield 2021-12-23 14:00:00 +11:00
testing.go Make use of the lazylog branch of anacrolix/log 2022-01-31 17:22:36 +11:00
torrent-piece-request-order.go Switch to ajwerner/btree in piece request ordering 2022-01-22 18:40:33 +11:00
torrent.go Make piece states a slice and reuse it and request indexes between runs 2022-05-12 10:37:36 +10:00
torrent_mmap_test.go Revert "Remove old-style build tags" 2021-11-01 11:26:58 +11:00
torrent_stats.go Add TorrentStats.PiecesComplete 2021-10-07 13:50:13 +11:00
torrent_test.go Add TestHaveAllThenBitfield 2021-12-23 14:00:00 +11:00
tracker_scraper.go tracker/udp.ConnClient: Make logging configurable 2021-12-28 12:05:01 +11:00
undirtied-chunks-iter.go Move undirtiedChunksIter into its own file 2022-05-09 12:51:01 +10:00
undirtied-chunks-iter_test.go Add and use typed roaring bitmap 2022-05-09 12:05:50 +10:00
url-net-addr.go Generate a RemoteAddr for webseed Peers 2021-01-25 15:49:48 +11:00
utp.go Add support for disabling IPv4 and IPv4 peers 2018-02-16 10:46:11 +11:00
utp_go.go Pass client logger to anacrolix/go-libutp sockets (#722) 2022-02-15 16:18:32 +11:00
utp_libutp.go Pass client logger to anacrolix/go-libutp sockets (#722) 2022-02-15 16:18:32 +11:00
utp_test.go Pass client logger to anacrolix/go-libutp sockets (#722) 2022-02-15 16:18:32 +11:00
webrtc.go Format code with gofumpt (#724) 2022-02-11 22:45:12 +11:00
webseed-peer.go Add and use typed roaring bitmap 2022-05-09 12:05:50 +10:00
worse-conns.go Optimize the use of worstConnSlice again 2021-11-29 10:07:48 +11:00
worse-conns_test.go Optimize the use of worstConnSlice again 2021-11-29 10:07:48 +11:00
wstracker.go gofumpt -extra 2021-12-23 14:00:00 +11:00

README.md

torrent

PkgGoDev

This repository implements BitTorrent-related packages and command-line utilities in Go. The emphasis is on use as a library from other projects. It's been used 24/7 in production by downstream services since late 2014. The implementation was specifically created to explore Go's concurrency capabilities, and to include the ability to stream data directly from the BitTorrent network. To this end it supports seeking, readaheads and other features exposing torrents and their files with the various Go idiomatic io package interfaces. This is also demonstrated through torrentfs.

There is support for protocol encryption, DHT, PEX, uTP, and various extensions. There are several data storage backends provided: blob, file, bolt, mmap, and sqlite, to name a few. You can write your own to store data for example on S3, or in a database.

Some noteworthy package dependencies that can be used for other purposes include:

Installation

Install the library package with go get github.com/anacrolix/torrent, or the provided cmds with go install github.com/anacrolix/torrent/cmd/...@latest.

Library examples

There are some small examples in the package documentation.

Mentions

Downstream projects

There are several web-frontends and Android clients among the known public projects:

Help

Communication about the project is primarily through Discussions and the issue tracker.

Command packages

Here I'll describe what some of the packages in ./cmd do. See installation to make them available.

torrent

torrent download

Downloads torrents from the command-line.

$ torrent download 'magnet:?xt=urn:btih:KRWPCX3SJUM4IMM4YF5RPHL6ANPYTQPU'
... lots of jibba jabber ...
downloading "ubuntu-14.04.2-desktop-amd64.iso": 1.0 GB/1.0 GB, 1989/1992 pieces completed (1 partial)
2015/04/01 02:08:20 main.go:137: downloaded ALL the torrents
$ md5sum ubuntu-14.04.2-desktop-amd64.iso
1b305d585b1918f297164add46784116  ubuntu-14.04.2-desktop-amd64.iso
$ echo such amaze
wow

torrent metainfo magnet

Creates a magnet link from a torrent file. Note the extracted trackers, display name, and info hash.

$ torrent metainfo testdata/debian-10.8.0-amd64-netinst.iso.torrent magnet
magnet:?xt=urn:btih:4090c3c2a394a49974dfbbf2ce7ad0db3cdeddd7&dn=debian-10.8.0-amd64-netinst.iso&tr=http%3A%2F%2Fbttracker.debian.org%3A6969%2Fannounce

See torrent metainfo --help for other metainfo related commands.

torrentfs

torrentfs mounts a FUSE filesystem at -mountDir. The contents are the torrents described by the torrent files and magnet links at -metainfoDir. Data for read requests is fetched only as required from the torrent network, and stored at -downloadDir.

$ mkdir mnt torrents
$ torrentfs -mountDir=mnt -metainfoDir=torrents &
$ cd torrents
$ wget http://releases.ubuntu.com/14.04.2/ubuntu-14.04.2-desktop-amd64.iso.torrent
$ cd ..
$ ls mnt
ubuntu-14.04.2-desktop-amd64.iso
$ pv mnt/ubuntu-14.04.2-desktop-amd64.iso | md5sum
996MB 0:04:40 [3.55MB/s] [========================================>] 100%
1b305d585b1918f297164add46784116  -