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# File 'lib/legion/data/encryption/sequel_plugin.rb', line 15
def encrypted_column(name, key_scope: :default)
col_scope = key_scope
encrypted_columns[name] = { key_scope: col_scope }
define_method(name) do
raw = super()
return nil if raw.nil?
provider = self.class.encryption_key_provider
tenant = col_scope == :tenant ? self[:tenant_id] : nil
key = provider.key_for(tenant_id: tenant)
aad = "#{self.class.table_name}:#{pk}:#{name}"
begin
Legion::Data::Encryption::Cipher.decrypt(raw.b, key: key, aad: aad)
rescue StandardError => e
Legion::Logging.warn "Decrypt failed for #{self.class.table_name}##{pk} column #{name}: #{e.message}" if defined?(Legion::Logging)
raise
end
end
define_method(:"#{name}=") do |value|
if value.nil?
super(nil)
else
provider = self.class.encryption_key_provider
tenant = col_scope == :tenant ? self[:tenant_id] : nil
key = provider.key_for(tenant_id: tenant)
aad = "#{self.class.table_name}:#{pk || 0}:#{name}"
encrypted = Legion::Data::Encryption::Cipher.encrypt(value.to_s, key: key, aad: aad)
super(Sequel.blob(encrypted))
end
end
end
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