Class: Hiera::Backend::Eyaml::Actions::DecryptAction

Inherits:
Object
  • Object
show all
Defined in:
lib/hiera/backend/eyaml/actions/decrypt_action.rb

Constant Summary collapse

REGEX_ENCRYPTED_BLOCK = 
/>\n(\s*)ENC\[(\w+,)?([a-zA-Z0-9\+\/ =\n]+)\]/
REGEX_ENCRYPTED_STRING = 
/ENC\[(\w+,)?([a-zA-Z0-9\+\/=]+)\]/

Class Method Summary collapse

Class Method Details

.execute ⇒ Object 



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# File 'lib/hiera/backend/eyaml/actions/decrypt_action.rb', line 14

def self.execute 

  output_data = case Eyaml::Options[:source]
  when :eyaml
    encryptions = []

    # blocks
    output = Eyaml::Options[:input_data].gsub( REGEX_ENCRYPTED_BLOCK ) { |match|
      indentation = $1
      encryption_scheme = parse_encryption_scheme( $2 )
      decryptor = Encryptor.find encryption_scheme
      ciphertext = $3.gsub(/[ \n]/, '')
      plaintext = decryptor.decrypt( decryptor.decode ciphertext )
      ">\n" + indentation + "DEC::#{decryptor.tag}[" + plaintext + "]!"
    }

    # strings
    output.gsub!( REGEX_ENCRYPTED_STRING ) { |match|
      encryption_scheme = parse_encryption_scheme( $1 )
      decryptor = Encryptor.find encryption_scheme

      plaintext = decryptor.decrypt( decryptor.decode $2 )
      "DEC::#{decryptor.tag}[" + plaintext + "]!"
    }

    output
  else

    output = Eyaml::Options[:input_data].gsub( REGEX_ENCRYPTED_STRING ) { |match|
      encryption_scheme = parse_encryption_scheme( $1 )
      decryptor = Encryptor.find encryption_scheme
      decryptor.decrypt( decryptor.decode $2 )
    } 

    output
  end

  output_data

end