Add SAML metadata controller

app/controllers/carto/saml_controller.rb

@@ -0,0 +1,26 @@
+# encoding: UTF-8
+
+require_dependency 'carto/controller_helper'
+
+module Carto
+  class SamlController < ApplicationController
+    ssl_required  :metadata
+    before_filter :load_organization
+
+    # Callback from Github Oauth
+    def metadata
+      render(xml: Carto::SamlService.new(@organization).saml_metadata)
+    end
+
+    private
+
+    def load_organization
+      @organization = Carto::Organization.where(name: CartoDB.extract_subdomain(request)).first
+      raise LoadError.new('Organization does not exist') unless @organization
+    end
+
+    def ensure_saml_enabled
+      raise UnauthorizedError.new('SAML not enabled') unless @organization.auth_saml_enabled?
+    end
+  end
+end

config/routes.rb

@@ -71,6 +71,7 @@ CartoDB::Application.routes.draw do
     end
 
     get '/github' => 'github#github', as: :github
+    get '/saml/metadata' => 'saml#metadata'
   end
 
   # Internally, some of this methods will forcibly rewrite to the org-url if user belongs to an organization