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Showing content from https://github.com/intercom/omniauth-intercom below:

intercom/omniauth-intercom: Intercom strategy for OmniAuth

Intercom OAuth2 Strategy for OmniAuth.

Supports the OAuth 2.0 server-side and client-side flows. Read the Intercom OAuth docs for more details:

Add to your Gemfile:

gem 'omniauth-intercom', '~> 0.1.9'

Then bundle install.

Important For this to work you need to select the read_single_admin permissions in your OAuth application to use this middleware.
Important You will also need to ensure your redirect_url is set to /auth/intercom/callback

OmniAuth::Strategies::Intercom is simply a Rack middleware. Read the OmniAuth docs for detailed instructions: https://github.com/intridea/omniauth.

Here's a quick example, adding the middleware to a Rails app in config/initializers/omniauth.rb:

Rails.application.config.middleware.use OmniAuth::Builder do
  provider :intercom, ENV['INTERCOM_KEY'], ENV['INTERCOM_SECRET']
end

To start the authentication process with Intercom you simply need to access /auth/intercom route. You can start the authentication process directly with the signup page by accessing /auth/intercom?signup=1

Important Reminder: As noted earlier you need the read_single_admin permissions to use this middleware.
Important Reminder: As noted earlier your redirect_url should be /auth/intercom/callback

By default Intercom strategy rejects users with unverified email addresses. info and raw_info in request.env['omniauth.auth'] will not be populated in that case. To disable this check add verify_email: false to your config:

Rails.application.config.middleware.use OmniAuth::Builder do
  provider :intercom, ENV['INTERCOM_KEY'], ENV['INTERCOM_SECRET'], verify_email: false
end

Here's an example Auth Hash available in request.env['omniauth.auth']:

{
  :provider => 'intercom',
  :uid => '342324',
  :info => {
    :email => 'kevin.antoine@intercom.io',
    :name => 'Kevin Antoine'
  },
  :credentials => {
    :token => 'dG9rOmNdrWt0ZjtgzzE0MDdfNGM5YVe4MzsmXzFmOGd2MDhiMfJmYTrxOtA=', # OAuth 2.0 access_token, which you may wish to store
    :expires => false
  },
  :extra => {
    :raw_info => {
      :name => 'Kevin Antoine',
      :email => 'kevin.antoine@intercom.io',
      :type => 'admin',
      :id => '342324',
      :email_verified => true,
      :app => {
        :id_code => 'abc123', # Company app_id
        :type => 'app',
        :secure => true, # Secure mode enabled for this app
        :timezone => "Dublin",
        :name => "ProjectMap"
      },
      :avatar => {
        :image_url => "https://static.intercomassets.com/avatars/343616/square_128/me.jpg?1454165491"
      }
    }
  }
}

Intercom Button / Popup authentication

To use Intercom Button to display authentication in a popup it is simple :

Add the following code in the html file in which you want to start to authenticate with Intercom ( /views/home/index.html.erb if you want to authenticate with Intercom in home#index)

<a href="javascript:void(0)" class="intercom-oauth-cta">
  <img src="https://static.intercomassets.com/assets/oauth/primary-7edb2ebce84c088063f4b86049747c3a.png" srcset="https://static.intercomassets.com/assets/oauth/primary-7edb2ebce84c088063f4b86049747c3a.png 1x, https://static.intercomassets.com/assets/oauth/primary@2x-0d69ca2141dfdfa0535634610be80994.png 2x, https://static.intercomassets.com/assets/oauth/primary@3x-788ed3c44d63a6aec3927285e920f542.png 3x"/>
</a>
<script type="text/javascript">
$('.intercom-oauth-cta').unbind('click').click(function() {
	var auth_window = window.open('/auth/intercom', 'Sign in', 'width=700,height=450');
	var checkWindow = function() {
	  if (auth_window.closed) {
      window.location = '/';
	  } else if (window.oauth_success === undefined) {
	    setTimeout(checkWindow, 200);
    }
	};
  checkWindow();
});
</script>

Create a views/home/intercom_callback.html.erb file ( if your callback route is home#intercom_callback)

<html>
  <head>
    <title>Authorized</title>
  </head>
  <body>
    <script type="text/javascript">
      setTimeout(function() {
        if (window.opener) {
          window.opener.oauth_success = true;
        }
        window.close();
      }, 1000);
    </script>
  </body>
</html>

testapp-intercom-omniauth is a simple application implementing the authentication process with Intercom with a popup display.

omniauth-oauth2 dependency in v0.1.4

From v0.1.4 we have defined our omniauth-oauth2 dependency to allow any version from 1.2 on. If you relied on our Gemspec version config for omniauth-oauth2 you can simply add gem 'omniauth-oauth2', '~> 1.2' to your Gemfile. This will ensure your omniauth-oauth2 version is 1.2.x again.

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