Module: Obscure

Defined in:
lib/codeobscure/obscure.rb

Constant Summary collapse

@@STRING_SYMBOL_FILE = 
"func.list"
@@IGNORE_NAME = 
"ignoresymbols"

Class Method Summary collapse

Class Method Details

.ramdomString(var_type, replace_type = 1) ⇒ Object

type 1 ：随机字符, 2 : 随机单词, 3 : 自定义单词替换



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# File 'lib/codeobscure/obscure.rb', line 17

def self.ramdomString(var_type , replace_type = 1)  
  result = ""
  case replace_type 
  when 1
    result = `openssl rand -base64 64 | tr -cd 'a-zA-Z' |head -c 16`
  when 2 
    words = RandomWord.phrases.next.split /[ _]/  
    join_words = ""
    words.each_with_index do |word,index| 
      if index == 0  

        join_words += word
        if var_type == "c"
          join_words.capitalize!
        end
      else
        join_words += word.capitalize
      end
    end
    result = join_words
  when 3
    raise "c选项功能暂未实现，下一版本中加入！"
  end


  result
end

.run(root_dir, type = 'r') ⇒ Object

有define重复的问题等待解决



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# File 'lib/codeobscure/obscure.rb', line 63

def self.run(root_dir,type = 'r')

  replace_type = toTypeNumber type

  @@HEAD_FILE="#{root_dir}/codeObfuscation.h"  
  @@STRING_SYMBOL_FILE = "#{root_dir}/#{@@STRING_SYMBOL_FILE}"

  ignore_symbols = []
  ignore_path = "#{root_dir}/#{@@IGNORE_NAME}"
  if File.exist? ignore_path
    ignore_content = File.read ignore_path
    ignore_symbols = ignore_content.gsub(/\s/ , "").split ","
  end
  
  if File.exists? @@HEAD_FILE 
    `rm -f #{@@HEAD_FILE}` 
  end 

  date = `date`
  file = File.new @@HEAD_FILE , 'w'
  file.puts "#ifndef co_codeObfuscation_h" 
  file.puts "#define co_codeObfuscation_h" 
  file.puts "//confuse string at #{date.to_s}"

  symbol_file = File.open(@@STRING_SYMBOL_FILE).read
  symbol_file.each_line do |line|
    line_type = line.rstrip.split(":").first
    line_content = line.rstrip.split(":").last
    result = FiltSymbols.query(line_content) 
    if result.nil? || result.empty? 
      ramdom = ramdomString line_type , replace_type
      if line_type == "p"
        result = FiltSymbols.query("set#{line_content.upcase_first_letter}") 
        if result.nil? || result.empty? 
          if !ignore_symbols.include?(line_content)
            file.puts "#define #{line_content} #{ramdom}"
            file.puts "#define _#{line_content} _#{ramdom}"
            file.puts "#define set#{line_content.upcase_first_letter} set#{ramdom.upcase_first_letter}"
          end
        end
      else 
          if !ignore_symbols.include?(line_content)
            file.puts "#define #{line_content} #{ramdom}"
          end
      end
    end 
  end

  file.puts "#endif" 
  file.close

  if File.exist? @@STRING_SYMBOL_FILE
    `rm -f #{@@STRING_SYMBOL_FILE}`
  end
  @@HEAD_FILE
end

.toTypeNumber(type) ⇒ Object 



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# File 'lib/codeobscure/obscure.rb', line 45

def self.toTypeNumber(type)
  result = 1
  case type
  when "r"
    result = 1
  when "w" 
    result = 2
  when "c"
    result = 3
  else
    puts "若参数不符合规则，默认切换到[r]的规则形式进行替换！".colorize(:yellow)
    result = 1
  end

  result
end