Bit-Torrent Client Using Golang

Setup

1. Initialize Go Modules:

   • Run the following command to download and install dependencies:

     go mod tidy
     

2. Add Torrent File in main.go:

   • Open the main.go file and include a valid .torrent file. For example, you can use a Debian ISO file.

3. Run the Main Program:

   • Execute the following command to start the GoTorrent client:

     go run main.go
     

These steps ensure that the necessary dependencies are fetched, a valid torrent file is added to the main.go file, and the main program is executed to run the GoTorrent client. Adjustments might be needed based on the specifics of your project structure and configuration.

Torrent Client Project Features

Overview

This project entails the creation of a command-line torrent client utilizing Go. The client enables seamless file downloads and uploads via the BitTorrent protocol, harnessing Go's built-in concurrency and networking capabilities for optimal performance.

Key Components

Efficient Download/Upload

• The client adeptly handles extensive file transfers, leveraging Go's concurrency features for simultaneous downloads and uploads.

Parser Accuracy

• Torrent files are parsed with precision, extracting vital information such as tracker URL, file name, size, and pieces.

Robust Tracker Communication

• Establishes reliable communication with the tracker, ensuring up-to-date information on available peers.

Piece-Level Management

• Effective piece management guarantees a systematic download and upload process, ensuring file completeness.

Concurrency for Scalability

• Utilizes Go's concurrency features to seamlessly handle multiple downloads and uploads concurrently.

Error Resilience

• Robust error handling mechanisms ensure the client gracefully manages unexpected scenarios, maintaining stability.

Fault Tolerance and Recovery

• The client exhibits resilience, recovering from errors and persisting bitfield information to ensure continuity in processes.

Limitations

The torrent client has the following limitations:

1. File Type Support:

   • Only supports .torrent files.
   • Does not support magnet links.

2. Tracker Protocol:

   • Only supports HTTP trackers.
   • Does not support other tracker protocols.

3. Torrent Structure:

   • Does not support multi-file torrents.
   • Currently designed for single-file torrents.

These limitations outline the current scope of the torrent client and represent areas where future improvements or additional features could be considered.

In summary, the project delivers a functional and efficient torrent client, demonstrating prowess in efficient file transfers, accurate parsing, robust communication, and resilience in the face of errors.

Group Members

Name	ID	Section
Bilen Mehalek	UGR/0252/13	1
Daniel Tilahun	UGR/2557/13	1
Dawit Minale	UGR/7990/13	2
Rihana Ersanu	UGR/8031/13	2
Robel Tesfaye	UGR/8429/13	1

GitHub Repo