Hako

Simple file sharing with client-side encryption, powered by Rust and WebAssembly

Not feature-packed, but basic functionalities are just working. Feature requests and PR are very welcome.

Features

Handy file sharing
Handy text-snippet sharing
Client-side encryption using XChacha20Poly1305
Fast and safe implementations thanks to Rust
Neat Web UI built with WebAssembly
Asynchronous upload, encryption, download, and decryption on your browser.

Why?

Sharing file safely between two devices is quite annoying. Hardware mediums(like USB flash memory) can be useful, but sharing file between mobile devices or different operating systems are frustrating. You can go with third-party file hosting server or E-mail, but those are not safe and not good for your privacy.
Hako is web application, which gives you great compatibility among various devices and operating systems. Also, Hako uses client-side encryption, so no one can see your original file, even the Hako server.

Build

Server

You need cargo to build server. If you don't have it, follow the instructions in here.

cd ./server
cargo build --release

Also, to serve your Hako server, running PostgreSQL server is required. See database schema.

Frontend

You need two additional tools: trunk and tailwindcss.

# To install trunk, use:
cargo install --locked trunk

# To install tailwindcss, use:
yarn global add tailwindcss

And build your WASM application.

trunk build --release

To-dos

Authentication
- WebAuthn
- or just plain username-password pair
File expiry, download limit
- Or just LRU
No PostgreSQL dependency
- By just using unix filesystem and small SQLite database?
Performance gain using Web Worker
CLI tool
- WASM can provide compatibility among various environment, and CLI downloader will provide good performance