ExtractHubVerifyParams.rb

# Allow the metal piece to run in isolation
require(File.dirname(__FILE__) + "/../../config/environment") unless defined?(Rails)

class ExtractHubVerifyParams
  def self.call(env)
    request = Rack::Request.new(env)
    params = request.params
    if hub_verify = env["rack.input"].read.match(/hub.verify=(.*)&hub.verify=(.*)/)
      params['hub.verify'] = ""
      params['hub.verify'] = "#{hub_verify[1]},#{hub_verify[2]}"
    end
    [404, {"Content-Type" => "text/html"}, ["Not Found"]]
  end 
end