# OpenProject AuthPlugins Plugin

Adds support for easy integration of OmniAuth strategy providers as a means to authenticate users in OpenProject.

## Dependencies

This plugin depends on the OpenProject Plugins Plugin, so insert it into your `Gemfile.plugins`:

    gem "openproject-plugins", :git => "git@github.com:opf/openproject-plugins.git", :branch => "dev"

## Usage

You can use this plugin to make an authentication plugin out of an ordinary OpenProject plugin.
The first step is to generate a new plugin using the Plugins plugin.
Once you have done that it only takes a few additions to make it an authentication plugin.
Find your Engine class in `engine.rb`, let it extend `OpenProject::Plugin::AuthPlugin` and register the providers you want to use.

Here's an example of that might look:

    module OpenProject::OpenIDConnect
      class Engine < ::Rails::Engine
        engine_name :openproject_some_auth_plugin

        include OpenProject::Plugins::ActsAsOpEngine
        extend OpenProject::Plugins::AuthPlugin

        register 'openproject-some_auth_plugin',
                 author_url: 'http://my.site',
                 requires_openproject: '>= 3.1.0pre1',

        register_auth_providers do
          strategy :some_strategy do
            [
              {
                name: "some_provider",
                host: "foo.bar.baz",
                port: 999,
                #, ... more provider options
              },
              {
                name: "another_provider",
                host: "foobar.biz",
                port: "692",
                #, ... more provider options
              }
            ]
          end

          strategy :another_strategy do
            [{name: "yet_another_provider"}]
          end
        end
      end
    end

Register each OmniAuth strategy by calling `strategy` with the strategy's name and returning the options for the providers using that strategy in the passed block.