FEATURE: List, revoke and reconnect associated accounts. Phase 1 (#6099)

Listing connections is supported for all built-in auth providers. Revoke and reconnect is currently only implemented for Facebook.

lib/auth/open_id_authenticator.rb

@@ -2,12 +2,22 @@ class Auth::OpenIdAuthenticator < Auth::Authenticator
 
   attr_reader :name, :identifier
 
-  def initialize(name, identifier, opts = {})
+  def initialize(name, identifier, enabled_site_setting, opts = {})
     @name = name
     @identifier = identifier
+    @enabled_site_setting = enabled_site_setting
     @opts = opts
   end
 
+  def enabled?
+    SiteSetting.send(@enabled_site_setting)
+  end
+
+  def description_for_user(user)
+    info = UserOpenId.find_by(user_id: user.id)
+    info&.email || ""
+  end
+
   def after_authenticate(auth_token)
     result = Auth::Result.new