Added subdomain based routing constraints

Non-wopi routes will only work with the subdomain set by the env variable USER_SUBDOMAIN (if it is set). Likewise, wopi routes will only work with the WOPI_SUBDOMAIN if it is set, but they also require the WOPI_ENABLED to be true.

app/utilities/subdomain.rb

@@ -0,0 +1,23 @@
+class UserSubdomain
+  def self.matches?(request)
+  	if ENV['USER_SUBDOMAIN']
+  		return request.subdomain.present? && request.subdomain = ENV['USER_SUBDOMAIN']
+  	else
+    	return true
+	end
+  end
+end
+
+class WopiSubdomain
+  def self.matches?(request)
+    if ENV['WOPI_ENABLED'] == "true"
+    	if ENV['WOPI_SUBDOMAIN']
+    		return request.subdomain.present? && request.subdomain = ENV['WOPI_SUBDOMAIN']
+    	else 
+    		return true
+    	end
+  	else
+    	return false
+	end
+  end
+end

config/routes.rb

@@ -1,4 +1,8 @@
 Rails.application.routes.draw do
+
+ require 'subdomain'
+
+ constraints (UserSubdomain) do	
   devise_for :users, controllers: { registrations: "users/registrations",
     sessions: "users/sessions", invitations: "users/invitations",
     confirmations: "users/confirmations" }
@@ -266,10 +270,14 @@ Rails.application.routes.draw do
     post 'avatar_signature' => 'users/registrations#signature'
   end
 
+ end
+ constraints (WopiSubdomain) do	
+
   # Office integration
   get 'wopi/files/:id/contents', to: 'wopi#file_contents_get_endpoint'
   post 'wopi/files/:id/contents', to: 'wopi#file_contents_post_endpoint'
 
   get 'wopi/files/:id', to: 'wopi#file_get_endpoint', as: 'wopi_rest_endpoint'
   post 'wopi/files/:id', to: 'wopi#post_file_endpoint'
+ end
 end