Rack::ContentDispositionHelper

Rack::ContentDispositionHelper is Rack middleware that rewrites the decoded filename* directive in the Content-Disposition response header as the value of the filename directive.

Safari does not use filename* if the size of the Content-Disposition response header exceeds 254Bytes, but this middleware is helpful in such cases.

This middleware checks that the User-Agent value in the request header is Safari-like. If the User-Agent is not Safari-like, no processing is performed.

Usage example

Rails app

Add this line to your application's Gemfile:

# Gemfile
gem 'rack-content_disposition_helper'

And then execute:

$ bundle

This will load rack-content_disposition_helper and set it up as a Rails middleware. The middleware is inserted for all of environment.

You don't need to add middleware to rails middleware stack.

Sinatra and other Rack apps

Add this line to your application's Gemfile:

# Gemfile
gem 'rack-content_disposition_helper'

And then execute:

$ bundle

For Sinatra and other Rack apps, add this to config.ru:

# config.ru

# Bundler.require or require 'rack/content_disposition_helper'
use Rack::ContentDispositionHelper

Development

After checking out the repo, run bin/setup to install dependencies. Then, run rake spec to run the tests. You can also run bin/console for an interactive prompt that will allow you to experiment.

To install this gem onto your local machine, run bundle exec rake install.

Contributing

Bug reports and pull requests are welcome on GitHub at https://github.com/hana-da/rack-content_disposition_helper. This project is intended to be a safe, welcoming space for collaboration, and contributors are expected to adhere to the code of conduct.

License

The gem is available as open source under the terms of the MIT License.

Code of Conduct

Everyone interacting in the Rack::ContentDispositionHelper project's codebases, issue trackers, chat rooms and mailing lists is expected to follow the code of conduct.