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# frozen_string_literal: true
module ActiveRecord
module Encryption
# An encryption context configures the different entities used to perform encryption:
#
# * A key provider
# * A key generator
# * An encryptor, the facade to encrypt data
# * A cipher, the encryption algorithm
# * A message serializer
class Context
PROPERTIES = %i[ key_provider key_generator cipher message_serializer encryptor frozen_encryption ]
attr_accessor(*PROPERTIES)
def initialize
set_defaults
end
alias frozen_encryption? frozen_encryption
silence_redefinition_of_method :key_provider
def key_provider
@key_provider ||= build_default_key_provider
end
private
def set_defaults
self.frozen_encryption = false
self.key_generator = ActiveRecord::Encryption::KeyGenerator.new
self.cipher = ActiveRecord::Encryption::Cipher.new
self.encryptor = ActiveRecord::Encryption::Encryptor.new
self.message_serializer = ActiveRecord::Encryption::MessageSerializer.new
end
def build_default_key_provider
ActiveRecord::Encryption::DerivedSecretKeyProvider.new(ActiveRecord::Encryption.config.primary_key)
end
end
end
end
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