FX-Torrent is the most complete BitTorrent implementation fully written in Rust, which supports both Linux, MacOS, and Windows. It supports most of the Bittorrent protocol specifications, such as multi-file torrents, validating existing files, resuming torrent files, and is based on the libtorrent library for functionality and naming convention.

To use the fx-torrent library, add the following cargo dependency:

Cargo.toml

[dependencies]
fx-torrent = "0.3.0"

Next, create a new FXTorrentSession which manages one or more torrents. A Torrent can be created from a magnet link, torrent file, or passing the raw TorrentMetadata.

create a new session with torrent

use fx_torrent::torrents::{FxTorrentSession, TorrentFlags};

// The fx-torrent crate makes use of async tokio runtimes
// this requires that new sessions and torrents need to be created within an async context
#[tokio::main]
async fn main() -> Result<(), io::Error> {
    let session = FxTorrentSession::builder()
        .base_path("/torrent/location/directory")
        .client_name("MyClient")
        .build()
        .unwrap();

    // Create a torrent from a magnet link
    let magnet_torrent = session.session.add_torrent_from_uri("magnet:?XXX", TorrentFlags::default()).await;
    
    // Create a torrent from a torrent file
    let file_torrent = session.session.add_torrent_from_uri("/tmp/example.torrent", TorrentFlags::default()).await;
    
    Ok(())
}

For more examples, see the examples.

The CLI example can be used to download torrents from a magnet link or torrent file. It uses Ratatui as the terminal UI library.

• BEP3 - The BitTorrent Protocol Specification
• BEP4 - Assigned Numbers
• BEP5 - DHT Protocol
• BEP6 - Fast Extension
• BEP9 - Extension for Peers to Send Metadata Files
• BEP10 - Extension Protocol
• BEP11 - Peer Exchange (PEX)
• BEP12 - Multitracker Metadata Extension
• BEP15 - UDP Tracker Protocol for BitTorrent
• BEP19 - WebSeed - HTTP/FTP Seeding (GetRight style)
• BEP20 - Peer ID Conventions
• BEP21 - Extension for partial seeds
• BEP29 - uTorrent transport protocol
• BEP32 - BitTorrent DHT Extensions for IPv6
• BEP33 - DHT scrape
• BEP40 - Canonical Peer Priority
• BEP42 - DHT Security extension
• BEP44 - Storing arbitrary data in the DHT
• BEP47 - Padding files and extended file attributes
• BEP48 - Tracker Protocol Extension: Scrape
• BEP51 - DHT Infohash Indexing
• BEP52 - The BitTorrent Protocol Specification v2 (WIP)
• BEP53 - Magnets
• BEP54 - The lt_donthave extension
• BEP55 - Holepunch extension (WIP)

This project is licensed under the Apache-2.0 license.

Unless you explicitly state otherwise, any contribution intentionally submitted for inclusion in the work by you, as defined in the Apache-2.0 license, shall be licensed as above, without any additional terms or conditions.