major refactor of auth, break up the gigantic omniauth controller into sub classes for way better extensibitily

lib/auth/oauth2_authenticator.rb

@@ -0,0 +1,55 @@
+class Auth::OAuth2Authenticator < Auth::Authenticator
+
+  def name
+    @name
+  end
+
+  # only option at the moment is :trusted
+  def initialize(name, opts={})
+    @name = name
+    @opts = opts
+  end
+
+  def after_authenticate(auth_token)
+
+    result = Auth::Result.new
+
+    oauth2_provider = auth_token[:provider]
+    oauth2_uid = auth_token[:uid]
+    data = auth_token[:info]
+    result.email = email = data[:email]
+    result.name = name = data[:name]
+
+    oauth2_user_info = Oauth2UserInfo.where(uid: oauth2_uid, provider: oauth2_provider).first
+
+    if !oauth2_user_info && @opts[:trusted] && user = User.find_by_email(email)
+      oauth2_user_info = Oauth2UserInfo.create(uid: oauth2_uid,
+                                               provider: oauth2_provider,
+                                               name: name,
+                                               email: email,
+                                               user: user)
+    end
+
+    result.user = oauth2_user_info.try(:user)
+    result.email_valid = @opts[:trusted]
+
+    result.extra_data = {
+      uid: oauth2_uid,
+      provider: oauth2_provider
+    }
+
+    result
+  end
+
+  def after_create_account(user, auth)
+    data = auth[:extra_data]
+    Oauth2UserInfo.create(
+      uid: data[:uid],
+      provider: data[:provider],
+      name: auth[:name],
+      email: auth[:email],
+      user_id: user.id
+    )
+  end
+
+end