lib/active_storage/engine.rb
require "rails/engine"
module ActiveStorage
class Engine < Rails::Engine # :nodoc:
config.active_storage = ActiveSupport::OrderedOptions.new
# config.eager_load_namespaces << ActiveStorage
initializer "active_storage.logger" do
require "active_storage/service"
config.after_initialize do |app|
ActiveStorage::Service.logger = app.config.active_storage.logger || Rails.logger
end
end
initializer 'active_storage.extend_active_record' do
require "active_storage/patches"
require "active_storage/patches/active_record"
ActiveSupport.on_load :active_record do
extend ActiveStorage::Patches::ActiveRecord
end
end
initializer "active_storage.attached" do
require "active_storage/attached"
ActiveSupport.on_load(:active_record) do
extend ActiveStorage::Attached::Macros
end
end
# Port of Rails.application.key_generator.generate_key('ActiveStorage')
# Used to sign ActiveStorage::Blob
# See: https://github.com/rails/activestorage/blob/archive/lib/active_storage/engine.rb#L27
# https://github.com/rails/rails/blob/7-0-stable/activesupport/lib/active_support/key_generator.rb#L40
initializer "active_storage.verifier" do
require 'active_storage/verifier'
config.after_initialize do |app|
key = OpenSSL::PKCS5.pbkdf2_hmac(
app.config.secret_token,
'ActiveStorage',
1000,
64,
OpenSSL::Digest::SHA256.new
)
ActiveStorage.verifier = ActiveStorage::Verifier.new(key)
end
end
initializer "active_storage.services" do
config.after_initialize do |app|
if config_choice = app.config.active_storage.service
config_file = Pathname.new(Rails.root.join("config/storage_services.yml"))
raise("Couldn't find Active Storage configuration in #{config_file}") unless config_file.exist?
require "yaml"
require "erb"
configs =
begin
YAML.load(ERB.new(config_file.read).result) || {}
rescue Psych::SyntaxError => e
raise "YAML syntax error occurred while parsing #{config_file}. " \
"Please note that YAML must be consistently indented using spaces. Tabs are not allowed. " \
"Error: #{e.message}"
end
ActiveStorage::Blob.service =
begin
ActiveStorage::Service.configure config_choice, configs
rescue => e
raise e, "Cannot load `Rails.config.active_storage.service`:\n#{e.message}", e.backtrace
end
end
end
end
end
end