Module: CaptchaUtil

Extended by:
CaptchaUtil
Included in:
CaptchaUtil
Defined in:
lib/captcha3/captcha_util.rb

Instance Method Summary collapse

Instance Method Details

#encrypt_string(str) ⇒ Object 



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# File 'lib/captcha3/captcha_util.rb', line 10

def encrypt_string(str)
  if defined?(CAPTCHA_SALT)
    salt = CAPTCHA_SALT
  else
    raise "---You must add CAPTCHA_SALT in config/initializers/captcha3.rb---"
  end 
  Digest::SHA256.hexdigest("#{salt}#{str}")
end

#random_image ⇒ Object 



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# File 'lib/captcha3/captcha_util.rb', line 5

def random_image
  @@captcha_files = Dir.glob("#{Rails.root}/public/system/captcha3/*.*").map{ |f| File.basename(f)}
  @@captcha_files[rand(@@captcha_files.size)]
end