BitBorrower 🦀

A minimalist BitTorrent client written in Rust

• Protocol: BEP 0003 (BitTorrent Specification)

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Implementation Checklist

• Parse Bencode: Implement logic to decode .torrent files and extract the info-hash and tracker URL.
• Tracker Announce: Send an HTTP/UDP request to the tracker to receive a list of active peers.
• Peer Handshake: Establish a TCP connection and perform the initial 68-byte BitTorrent handshake.
• Message Framing: Implement a length-prefixed message parser for the Peer Wire Protocol.
• Bitfield Handling: Track which pieces peers have and broadcast your own availability.
• Choke/Unchoke Logic: Manage the state machine for peer interest and choking status.
• Request Blocks: Implement the logic to request 16KB blocks from peers for a specific piece.
• Piece Verification: Use SHA-1 to verify the integrity of a downloaded piece against the torrent file's hash.
• File I/O: Write verified pieces to the disk and handle multi-file torrent layouts.
• Concurrency: Use tokio to manage multiple peer connections simultaneously.
• CLI Interface: Create a basic terminal dashboard to monitor download speed and progress.
• Extension: Add support for optional extensions.
• μTP Protocol: Implement the μTP protocol for efficient file sharing.