BitTorrent

Client for the peer to peer BitTorrent protocol from scratch in Rust.

Features

• Bencode encoding + decoding
• Parsing .torrent files for their metadata
• Discovering peers with HTTP and UDP tracker protocols
• TCP peer wire message parsing
• Concurrently downloading pieces from many peers
• Multithreaded SHA1 hash checking for verifying pieces
• Downloading single and multi-file torrents
• Resuming partially complete torrents
• Seeding requested pieces
• Pipelining piece requests for higher throughput

To do

• Asynchronous IO on a multithreaded runtime
• DHT, PEX, NAT traversal for more peers
• Rarest first/Choking/Super seeding algorithms
• Graphical/Web interface
• uTorrent transport protocol
• Piece paging/caching

Usage

To run, clone the repo and run

cargo run --release [torrent]

where [torrent] is the path to the .torrent file. The client will proceed to download the torrent into the working directory.

Progress is given in completed pieces out of the total.