Simple file upload & share platform written in Haskell & JavaScript.

Features

Implemented features:

• Secure login with randomized master key
• Drag & drop file upload UI
• Client-side and server-side file hashing before upload to guarantee correctness of upload
• Support for partial file uploads and resumable uploads of large files
• Anonymous download URLs with randomized file IDs
• Preservation of original file names (including all UTF-8 characters)

Planned features:

• Lightweight upload keys with limited bandwidth or number of files
• Lightweight browsing keys with restricted visibility on individual files
• Key management for given upload/browsing keys
• Logging mechanism for all up- and downloads as well as key activations

Issues:

• Please use the issue tracker on GitHub for all bug reports.

Requirements

The browser frontend is using HTML5 features, including (but not limited to):

• FileAPI
• CSS3 transitions and animations
• UTF-8 filenames using filename*=UTF-8''<filename> headers

If your browser does not support these features, please upgrade to a modern browser.

The server backend is written in Haskell, using libraries like:

• happstack-server
• acid-state
• blaze-html

GHC version 7.8.2 or higher is required.

Installing

To build the server, first create a new cabal-sandbox (this step is optional, but recommended):

cabal sandbox init

Then install and run the binary:

cabal install
./.cabal-sandbox/bin/file-upload-server

By default it will run on port 8085 and only be accessible from your local host:

http://127.0.0.1:8085

Integrating with Other Web Servers

Setup your main web server as a proxy to the file-upload backend server. For Nginx with Let's Encrypt use the following configuration inside the http block of your Nginx configuration:

# Proxy for file-upload backend
server {
  server_name           <sub>.<domain>.<tld>;

  # only accept encrypted connections
  listen                443 ssl;
  ssl_certificate       /usr/local/etc/letsencrypt/live/<sub>.<domain>.<tld>/fullchain.pem;
  ssl_certificate_key   /usr/local/etc/letsencrypt/live/<sub>.<domain>.<tld>/privkey.pem;

  location / {

    # pass all data to backend
    proxy_pass                  http://127.0.0.1:8085;

    # disable all request buffering.
    # this is required for partial uploads to function properly.
    proxy_request_buffering     off;

    # max file size - adjust as necessary
    client_max_body_size        1G;
  }
}