Module: SimpleCaptcha::Utils

Defined in:
lib/simple_captcha/utils.rb

Overview

:nodoc

Class Method Summary collapse

Class Method Details

.generate_key(*args) ⇒ Object 



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# File 'lib/simple_captcha/utils.rb', line 49

def self.generate_key(*args)
  args << Time.now.to_s
  Digest::SHA1.hexdigest(args.join)
end

.random_str ⇒ Object 



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# File 'lib/simple_captcha/utils.rb', line 27

def self.random_str()
  charset = SimpleCaptcha.charset.split(//)
  size = SimpleCaptcha.length

  (0...size).map{ charset.to_a[rand(charset.size)] }.join
end

.run(cmd, params = "", expected_outcodes = 0) ⇒ Object

Execute command with params and return output if exit status equal expected_outcodes



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# File 'lib/simple_captcha/utils.rb', line 6

def self.run(cmd, params = "", expected_outcodes = 0)
  command = %Q[#{cmd} #{params}].gsub(/\s+/, " ")
  command = "#{command} 2>&1"

  unless (image_magick_path = SimpleCaptcha.image_magick_path).blank?
    command = File.join(image_magick_path, command)
  end

  output = `#{command}`

  unless [expected_outcodes].flatten.include?($?.exitstatus)
    raise ::StandardError, "Error while running #{cmd}: #{output}"
  end

  output
end

.simple_captcha_new_value(key) ⇒ Object

:nodoc



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# File 'lib/simple_captcha/utils.rb', line 34

def self.simple_captcha_new_value(key) #:nodoc
  begin
    d = SimpleCaptchaData.get_data(key)
    d.value = self.random_str
    d.save!
    d.value
  rescue
    nil
  end
end

.simple_captcha_passed!(key) ⇒ Object

:nodoc



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# File 'lib/simple_captcha/utils.rb', line 45

def self.simple_captcha_passed!(key) #:nodoc
  SimpleCaptchaData.remove_data(key)
end

.simple_captcha_value(key) ⇒ Object

:nodoc



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# File 'lib/simple_captcha/utils.rb', line 23

def self.simple_captcha_value(key) #:nodoc
  SimpleCaptchaData.get_data(key).value rescue nil
end