From b732aff523b3d274526b828b684f802cc144b544 Mon Sep 17 00:00:00 2001
From: Vencislav Atanasov <user890104@users.noreply.github.com>
Date: Fri, 4 Nov 2016 15:34:44 +0200
Subject: [PATCH] Add CORS header in order to access the public API from
 JavaScript

(I have no idea what I'm doing)
---
 app/controllers/api/application_controller.rb   | 5 +++++
 app/controllers/api/event_types_controller.rb   | 1 +
 app/controllers/api/events_controller.rb        | 1 +
 app/controllers/api/halls_controller.rb         | 1 +
 app/controllers/api/slots_controller.rb         | 1 +
 app/controllers/api/speakers_controller.rb      | 1 +
 app/controllers/api/tracks_controller.rb        | 1 +
 app/controllers/concerns/public_api_exposing.rb | 9 +++++++++
 8 files changed, 20 insertions(+)
 create mode 100644 app/controllers/concerns/public_api_exposing.rb

diff --git a/app/controllers/api/application_controller.rb b/app/controllers/api/application_controller.rb
index b9568e7..461e1dc 100644
--- a/app/controllers/api/application_controller.rb
+++ b/app/controllers/api/application_controller.rb
@@ -1,2 +1,7 @@
 class Api::ApplicationController < ::ApplicationController
+  def set_access_control_headers
+    if request.format.json?
+      response.headers['Access-Control-Allow-Origin'] = '*'
+    end
+  end
 end
diff --git a/app/controllers/api/event_types_controller.rb b/app/controllers/api/event_types_controller.rb
index 875b988..a49fa3b 100644
--- a/app/controllers/api/event_types_controller.rb
+++ b/app/controllers/api/event_types_controller.rb
@@ -1,5 +1,6 @@
 class Api::EventTypesController < Api::ApplicationController
   include ::CurrentConferenceAssigning
+  include ::PublicApiExposing
   before_filter :require_current_conference!
 
   def index
diff --git a/app/controllers/api/events_controller.rb b/app/controllers/api/events_controller.rb
index 8c9bd8a..a390c72 100644
--- a/app/controllers/api/events_controller.rb
+++ b/app/controllers/api/events_controller.rb
@@ -1,5 +1,6 @@
 class Api::EventsController < Api::ApplicationController
   include ::CurrentConferenceAssigning
+  include ::PublicApiExposing
   before_filter :require_current_conference!
 
   def index
diff --git a/app/controllers/api/halls_controller.rb b/app/controllers/api/halls_controller.rb
index 98c397a..c449b2d 100644
--- a/app/controllers/api/halls_controller.rb
+++ b/app/controllers/api/halls_controller.rb
@@ -1,5 +1,6 @@
 class Api::HallsController < Api::ApplicationController
   include ::CurrentConferenceAssigning
+  include ::PublicApiExposing
   before_filter :require_current_conference!
 
   def index
diff --git a/app/controllers/api/slots_controller.rb b/app/controllers/api/slots_controller.rb
index 4a02389..60cf154 100644
--- a/app/controllers/api/slots_controller.rb
+++ b/app/controllers/api/slots_controller.rb
@@ -1,5 +1,6 @@
 class Api::SlotsController < Api::ApplicationController
   include ::CurrentConferenceAssigning
+  include ::PublicApiExposing
   before_filter :require_current_conference!
 
   def index
diff --git a/app/controllers/api/speakers_controller.rb b/app/controllers/api/speakers_controller.rb
index c98a7fc..cd8cfc5 100644
--- a/app/controllers/api/speakers_controller.rb
+++ b/app/controllers/api/speakers_controller.rb
@@ -1,5 +1,6 @@
 class Api::SpeakersController < Api::ApplicationController
   include ::CurrentConferenceAssigning
+  include ::PublicApiExposing
   before_filter :require_current_conference!
 
   def index
diff --git a/app/controllers/api/tracks_controller.rb b/app/controllers/api/tracks_controller.rb
index e3e5263..87f8ccf 100644
--- a/app/controllers/api/tracks_controller.rb
+++ b/app/controllers/api/tracks_controller.rb
@@ -1,5 +1,6 @@
 class Api::TracksController < Api::ApplicationController
   include ::CurrentConferenceAssigning
+  include ::PublicApiExposing
   before_filter :require_current_conference!
 
   def index
diff --git a/app/controllers/concerns/public_api_exposing.rb b/app/controllers/concerns/public_api_exposing.rb
new file mode 100644
index 0000000..5fc08b8
--- /dev/null
+++ b/app/controllers/concerns/public_api_exposing.rb
@@ -0,0 +1,9 @@
+require 'active_support/concern'
+
+module PublicApiExposing
+  extend ActiveSupport::Concern
+
+  included do
+    before_action :set_access_control_headers
+  end
+end