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A VERY simple OmniAuth strategy to pull header information placed by an authenticating reverse proxy.
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 Dependencies

Development

~> 1.14
>= 0
>= 0
~> 3.0
>= 0

Runtime

>= 1.0
 Project Readme

Build Status

OmniAuth::Strategies::Headers

A VERY simple OmniAuth strategy to pull user information from headers. This is useful in situations where you have an authenticating reverse proxy in front of your application that places user information into the request headers.

Technically speaking, you probably don't need omniauth in this case since the whole redirect/callback system is unnecessary (every request has the user information already), however, if your application uses multiple different authentication schemes, you may find it easier to use this than trying to swap omniauth in and out.

Installation

Add this line to your application's Gemfile:

gem 'omniauth-headers'

And then execute:

$ bundle

Or install it yourself as:

$ gem install omniauth-headers

Usage

As a middleware in your Rack application:

  require 'omniauth'
  use OmniAuth::Strategies::Headers,
    headers: { uid: 'HTTP_USER_ID', email: 'HTTP_EMAIL' },
    uid_field: :uid

or in your Rails application:

in Gemfile:

  gem 'omniauth-headers'

in config/initializers/omniauth.rb

  Rails.application.config.middleware.use OmniAuth::Builder do
    provider :headers,
      headers: { uid: 'HTTP_USER_ID', email: 'HTTP_EMAIL' },
      uid_field: :uid
  end

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. To release a new version, update the version number in version.rb, and then run bundle exec rake release, which will create a git tag for the version, push git commits and tags, and push the .gem file to rubygems.org.

Contributing

Bug reports and pull requests are welcome on GitHub at https://github.com/jasonmk/omniauth-headers.

License

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