Module: AttrSecure

Defined in:
lib/attr_secure.rb,
lib/attr_secure/secret.rb,
lib/attr_secure/secure.rb,
lib/attr_secure/version.rb,
lib/attr_secure/adapters/ruby.rb,
lib/attr_secure/adapters/sequel.rb,
lib/attr_secure/adapters/active_record.rb

Defined Under Namespace

Modules: Adapters Classes: Secret, Secure

Constant Summary collapse

ADAPTERS =

All the available adapters. The order in this list matters, as only the first valid adapter will be used

[
  AttrSecure::Adapters::ActiveRecord,
  AttrSecure::Adapters::Sequel,
  AttrSecure::Adapters::Ruby
]
VERSION = 
"0.4.1"

Instance Method Summary collapse

Instance Method Details

#attr_secure(*attributes) ⇒ Object

Generates attr_accessors that encrypt and decrypt attributes transparently



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# File 'lib/attr_secure.rb', line 21

def attr_secure(*attributes)
  options = {
    :encryption_class => Secure,
    :secret_class     => Secret,
    :env              => ENV
  }.merge!(attributes.last.is_a?(Hash) ? attributes.pop : {})

  attribute = attributes.first

  define_method("#{attribute}=") do |value|
    adapter = self.class.attr_secure_adapter
    secret  = options[:secret_class].new(options).call(self)
    crypter = options[:encryption_class].new(secret)
    value   = crypter.encrypt(value)

    adapter.write_attribute self, attribute, value
  end

  define_method("#{attribute}") do
    adapter = self.class.attr_secure_adapter
    secret  = options[:secret_class].new(options).call(self)
    crypter = options[:encryption_class].new(secret)
    value   = adapter.read_attribute(self, attribute)

    crypter.decrypt value
  end
end

#attr_secure_adapter ⇒ Object 



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# File 'lib/attr_secure.rb', line 49

def attr_secure_adapter
  ADAPTERS.find {|a| a.valid?(self) }
end