Class: Lockbox::Utils

Inherits:
Object
  • Object
show all
Defined in:
lib/lockbox/utils.rb

Class Method Summary collapse

Class Method Details

.build_box(context, options, table, attribute) ⇒ Object 



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# File 'lib/lockbox/utils.rb', line 3

def self.build_box(context, options, table, attribute)
  options = options.except(:attribute, :encrypted_attribute, :migrating, :attached, :type, :encode)
  options.each do |k, v|
    if v.is_a?(Proc)
      options[k] = context.instance_exec(&v) if v.respond_to?(:call)
    elsif v.is_a?(Symbol)
      options[k] = context.send(v)
    end
  end

  unless options[:key] || options[:encryption_key] || options[:decryption_key]
    options[:key] = Lockbox.attribute_key(table: table, attribute: attribute, master_key: options.delete(:master_key))
  end

  Lockbox.new(options)
end

.decode_key(key) ⇒ Object 



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# File 'lib/lockbox/utils.rb', line 24

def self.decode_key(key)
  if key.encoding != Encoding::BINARY && key =~ /\A[0-9a-f]{64,128}\z/i
    key = [key].pack("H*")
  end
  key
end

.encrypted_options(record, name) ⇒ Object 



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# File 'lib/lockbox/utils.rb', line 20

def self.encrypted_options(record, name)
  record.class.respond_to?(:lockbox_attachments) && record.class.lockbox_attachments[name.to_sym]
end