Method: Rex::Text.cowsay

Defined in:
lib/rex/text/silly.rb

.cowsay(text, width = 39) ⇒ Object

Converts a string to one similar to what would be used by cowsay(1), a UNIX utility for displaying text as if it was coming from an ASCII-cow’s mouth:

 __________________
< the cow says moo >
 ------------------
        \   ^__^
         \  (oo)\_______
            (__)\       )\/\
                ||----w |
                ||     ||

Parameters:

  • text (String) —

    The string to cowsay

  • width (Integer) (defaults to: 39) —

    Width of the cow's cloud. Default's to cowsay(1)'s default, 39.



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# File 'lib/rex/text/silly.rb', line 24

def self.cowsay(text, width=39)
  # cowsay(1) chunks a message up into 39-byte chunks and wraps it in '| ' and ' |'
  # Rex::Text.wordwrap(text, 0, 39, ' |', '| ') almost does this, but won't
  # split a word that has > 39 characters in it which results in oddly formed
  # text in the cowsay banner, so just do it by hand.  This big mess wraps
  # the provided text in an ASCII-cloud and then makes it look like the cloud
  # is a thought/word coming from the ASCII-cow.  Each line in the
  # ASCII-cloud is no more than the specified number-characters long, and the
  # cloud corners are made to look rounded
  text_lines = text.scan(Regexp.new(".{1,#{width-4}}"))
  max_length = text_lines.map(&:size).sort.last
  cloud_parts = []
  cloud_parts << " #{'_' * (max_length + 2)}"
  if text_lines.size == 1
    cloud_parts << "< #{text} >"
  else
    cloud_parts << "/ #{text_lines.first.ljust(max_length, ' ')} \\"
    if text_lines.size > 2
      text_lines[1, text_lines.length - 2].each do |line|
        cloud_parts << "| #{line.ljust(max_length, ' ')} |"
      end
    end
    cloud_parts << "\\ #{text_lines.last.ljust(max_length, ' ')} /"
  end
  cloud_parts << " #{'-' * (max_length + 2)}"
  cloud_parts << <<EOS
   \\   ,__,
    \\  (oo)____
       (__)    )\\
          ||--|| *
EOS
  cloud_parts.join("\n")
end