Module: Metasploit::Credential::Text

Defined in:
lib/metasploit/credential/text.rb

Overview

Helper module that contains methods for manipulating text into different formats.

Class Method Summary collapse

Class Method Details

.ascii_safe_hex(str, whitespace = false) ⇒ String

Turn non-printable chars into hex representations, leaving others alone If whitespace is true, converts whitespace (0x20, 0x09, etc) to hex as well. param [Boolean] whitespace converts whitespace to ASCII-safe hex if true, ignores if false

Parameters:

  • str (String) —

    the string to do substitution on

Returns:

  • (String) 


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# File 'lib/metasploit/credential/text.rb', line 9

def self.ascii_safe_hex(str, whitespace=false)
  if whitespace
    str.gsub(/([\x00-\x20\x80-\xFF])/n){ |x| "\\x%.2x" % x.unpack("C*")[0] }
  else
    str.gsub(/([\x00-\x08\x0b\x0c\x0e-\x1f\x80-\xFF])/n){ |x| "\\x%.2x" % x.unpack("C*")[0]}
  end
end

.dehex(str) ⇒ String

Convert hex into characters

Returns:

  • (String) 


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# File 'lib/metasploit/credential/text.rb', line 19

def self.dehex(str)
  hexen = str.scan(/\x5cx[0-9a-fA-F]{2}/n)
  hexen.each { |h|
    str.gsub!(h,h[2,2].to_i(16).chr)
  }
  str
end