Überauth Strategy for Azure AD v2.0, Single Tenant OAuth2

A simple implementation of OAuth that includes the tenant_id in the OAuth2 endpoint, facilitating the Microsoft identity platform version 2.

Originally forked in a hurry from swelhan/ueberauth_microsoft, with much gratitude.

Installation

1. Setup your application at the new Microsoft app registration portal.

2. Add :ueberauth_azure_ad to your list of dependencies in mix.exs:

    def deps do
      [{:ueberauth_azure_ad, "~> 0.5"}]
    end

3. Add the strategy to your applications:

    def application do
      [applications: [:ueberauth_azure_ad]]
    end

4. Add Microsoft to your Überauth configuration:

    config :ueberauth, Ueberauth,
      providers: [
        azure: {Ueberauth.Strategy.AzureAD, []}
      ]

5. Update your provider configuration:

   config :ueberauth, Ueberauth.Strategy.AzureAD.OAuth,
     client_id: System.get_env("AZURE_CLIENT_ID"),
     client_secret: System.get_env("AZURE_CLIENT_SECRET"),
     tenant_id: System.get_env("AZURE_TENANT_ID")

6. Include the Überauth plug in your controller:

   defmodule MyApp.AuthController do
     use MyApp.Web, :controller
     plug Ueberauth
     ...
   end

7. Create the request and callback routes if you haven't already:

   scope "/auth", MyApp do
     pipe_through :browser
   
     get "/:provider", AuthController, :request
     get "/:provider/callback", AuthController, :callback
   end

8. Your controller needs to implement callbacks to deal with Ueberauth.Auth and Ueberauth.Failure responses.

For an example implementation see the Überauth Example application.

Calling

Depending on the configured url you can initial the request through:

/auth/azure

By default the scopes used are

• openid
• email
• offline_access
• https://graph.microsoft.com/user.read

Note: at least one service scope is required in order for a token to be returned by the Microsoft endpoint

You can configure additional scopes to be used by passing the extra_scopes option into the provider

config :ueberauth, Ueberauth,
  providers: [
    azure: {Ueberauth.Strategy.AzureAD, [extra_scopes: "https://graph.microsoft.com/calendars.read"]}
  ]

License

Please see LICENSE for licensing details.