module Grape::Middleware::Auth::DSL::ClassMethods

def auth(type = nil, options = {}, &block)
  if type
    namespace_inheritable(:auth, options.reverse_merge(type: type.to_sym, proc: block))
    use Grape::Middleware::Auth::Base, namespace_inheritable(:auth)
  else
    namespace_inheritable(:auth)
  end
end

def http_basic(options = {}, &block)
  options[:realm] ||= 'API Authorization'
  auth :http_basic, options, &block
end

def http_digest(options = {}, &block)
  options[:realm] ||= 'API Authorization'
  if options[:realm].respond_to?(:values_at)
    options[:realm][:opaque] ||= 'secret'
  else
    options[:opaque] ||= 'secret'
  end
  auth :http_digest, options, &block
end