Module: Hydan::IO

Included in:
CLI, Crypto::KMS::KMSCmd
Defined in:
lib/hydan/io.rb

Constant Summary collapse

ENV_LINE_REGEX = 
/(.*?)=(.*)/

Instance Method Summary collapse

Instance Method Details

#handle_input(options) ⇒ String

Reads text from STDIN, or uses the value supplied with –plaintext, if any. Returns the text.

Returns:

  • (String) 


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# File 'lib/hydan/io.rb', line 8

def handle_input(options)
  text = options[:text].join ' ' if options[:text]
  unless options[:text]
    text = ''
    text << $LAST_READ_LINE while $stdin.gets # unless $stdin.tty?
  end
  # raise ArgumentError.new('No plaintext specified') if text.empty?
  text
end

#handle_key_output(encrypted_data_key_blob, out_key_file = nil) ⇒ Object

Handles the output phase for file encryption/decryption. This only concerns the encrypted data key, since file encryption automatically assumes that an output file is being used (by the library). The input encrypted_data_key is expected to be a binary key, not Base64 encoded.



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# File 'lib/hydan/io.rb', line 33

def handle_key_output(encrypted_data_key_blob, out_key_file = nil)
  File.open(out_key_file, 'wb') {
    |f| f.write encrypted_data_key_blob
  } if out_key_file
  puts "Data key (Base64): #{Base64.strict_encode64(encrypted_data_key_blob)}" unless out_key_file
end

#handle_output(json) ⇒ Nil

Output phase of the encryption process, prints output to STDOUT or uses the value supplied with –out to write output to a file, if any.

Returns:

  • (Nil) 


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# File 'lib/hydan/io.rb', line 22

def handle_output(json)
  File.open(options[:out], 'w') { |f| f.write json } if options[:out]
  puts json unless options[:out]
  nil
end