76 lines
4.1 KiB
Markdown
76 lines
4.1 KiB
Markdown
# torrent
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[](https://gitter.im/anacrolix/torrent?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge)
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[](https://drone.io/github.com/anacrolix/torrent/latest)
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[](https://godoc.org/github.com/anacrolix/torrent)
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[](http://gocover.io/github.com/anacrolix/torrent)
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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 a downstream, private service since late 2014.
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There is support for protocol encryption, DHT, PEX, uTP, and various extensions. See the package documentation for a more complete list. There are several data storage backends provided: blob, file, and mmap, and you can write your own, such as to store data on S3, or in a database. You can use the provided binaries in `./cmd`, or use `torrent` as a library for your own applications.
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Many of the sub-packages can be used for other purposes: [dht](https://godoc.org/github.com/anacrolix/torrent/dht), [bencode](https://godoc.org/github.com/anacrolix/torrent/bencode), and [tracker](https://godoc.org/github.com/anacrolix/torrent/tracker), in particular.
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## Installation
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Install the library package with `go get github.com/anacrolix/torrent`, or the provided cmds with `go get github.com/anacrolix/torrent/cmd/...`.
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## Library example
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There is a small example in the [package documentation](https://godoc.org/github.com/anacrolix/torrent).
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## Other projects using Torrent
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* [Go Peerflix](https://github.com/Sioro-Neoku/go-peerflix)
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## Commands
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Here I'll describe what some of the provided commands in `./cmd` do.
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Note that the [`godo`](https://github.com/anacrolix/godo) command which is invoked in the following examples builds and executes a Go import path, like `go run`. It's easier to use this convention than to spell out the install/invoke cycle for every single example.
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### torrent
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Downloads torrents from the command-line.
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$ go get github.com/anacrolix/torrent/cmd/torrent
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$ torrent 'magnet:?xt=urn:btih:KRWPCX3SJUM4IMM4YF5RPHL6ANPYTQPU'
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2015/04/01 02:08:20 main.go:137: downloaded ALL the torrents
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$ md5sum ubuntu-14.04.2-desktop-amd64.iso
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1b305d585b1918f297164add46784116 ubuntu-14.04.2-desktop-amd64.iso
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$ echo such amaze
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wow
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### torrentfs
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torrentfs mounts a FUSE filesystem at `-mountDir`. The contents are the torrents described by the torrent files and magnet links at `-torrentPath`. Data for read requests is fetched only as required from the torrent network, and stored at `-downloadDir`.
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$ mkdir mnt torrents
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$ godo github.com/anacrolix/torrent/cmd/torrentfs -mountDir mnt -torrentPath torrents &
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$ cd torrents
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$ wget http://releases.ubuntu.com/14.04.2/ubuntu-14.04.2-desktop-amd64.iso.torrent
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$ cd ..
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$ ls mnt
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ubuntu-14.04.2-desktop-amd64.iso
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$ pv mnt/ubuntu-14.04.2-desktop-amd64.iso | md5sum
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996MB 0:04:40 [3.55MB/s] [========================================>] 100%
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1b305d585b1918f297164add46784116 -
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### torrent-magnet
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Creates a magnet link from a torrent file. Note the extracted trackers, display name, and info hash.
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$ godo github.com/anacrolix/torrent/cmd/torrent-magnet < ubuntu-14.04.2-desktop-amd64.iso.torrent
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magnet:?xt=urn:btih:546cf15f724d19c4319cc17b179d7e035f89c1f4&dn=ubuntu-14.04.2-desktop-amd64.iso&tr=http%3A%2F%2Ftorrent.ubuntu.com%3A6969%2Fannounce&tr=http%3A%2F%2Fipv6.torrent.ubuntu.com%3A6969%2Fannounce
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### dht-ping
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Pings DHT nodes with the given network addresses.
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$ godo ./cmd/dht-ping router.bittorrent.com:6881 router.utorrent.com:6881
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2015/04/01 17:21:23 main.go:33: dht server on [::]:60058
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32f54e697351ff4aec29cdbaabf2fbe3467cc267 (router.bittorrent.com:6881): 648.218621ms
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ebff36697351ff4aec29cdbaabf2fbe3467cc267 (router.utorrent.com:6881): 873.864706ms
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2/2 responses (100.000000%)
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