#!/usr/local/bin/ruby
#
# This script allows you to encode a string or file using the
# crypt-fog Ruby package.
#
# Author:
#		Daniel J. Berger
#
# Warranty:
#		This package is provided "as is" and without any express or
#    	implied warranties, including, without limitation, the implied
#    	warranties of merchantability and fitness for a particular purpose.
#
# License: Ruby's
#
# Copyright: (C) 2003-2005 Daniel J. Berger.  All rights reserved.

require "getoptlong"
require "crypt/fog"
include Crypt

QUICKENC_VERSION = 1.1

def usage
   print <<-HELP
      Usage: quickenc -f <filename> -d <salt>
             quickenc -s <string> -d <salt>
   HELP
   exit
end

args = GetoptLong.new(
   ["--file",    "-f", GetoptLong::OPTIONAL_ARGUMENT],
   ["--degree",  "-d", GetoptLong::REQUIRED_ARGUMENT],
   ["--string",  "-s", GetoptLong::OPTIONAL_ARGUMENT],
   ["--version", "-v", GetoptLong::NO_ARGUMENT],
   ["--help",    "-h", GetoptLong::NO_ARGUMENT]
)

opts = {}
begin
   args.each{ |option,value| opts[option] = value || true }
rescue GetoptLong::InvalidOption
   usage()
   exit
end

if opts["--version"]
   puts "VERSION: " + QUICKENC_VERSION.to_s
   exit
end

if opts["--help"]
   usage()
end

unless opts["--file"] || opts["--string"]
   STDERR.puts "Must provide string or file name"
   usage()
end

unless opts["--degree"]
   STDERR.puts "Must provide a degree of salt"
   usage()
end

str = nil
if opts["--file"]
   str = IO.readlines(opts["--file"]).flatten.to_s.chomp
else
   str = opts["--string"]
end

salt = opts["--degree"].to_i

puts
puts "Copy and paste the string below to wherever you need it"
puts "Remember your salt number (#{salt}) in order to decrypt it later on."
puts "=" * 63
puts

puts "Crypted string: " + Fog.new(str,salt).to_s
puts