Module: QuickCaptcha

Defined in:
lib/quick_captcha/view_helpers.rb,
lib/quick_captcha.rb,
lib/quick_captcha/engine.rb,
lib/quick_captcha/version.rb,
lib/quick_captcha/captcha_utils.rb,
lib/quick_captcha/image_helpers.rb,
lib/quick_captcha/model_validation.rb,
lib/quick_captcha/quick_magick_backend.rb,
lib/quick_captcha/controller_validation.rb

Overview

Copyright © 2008 [Sur expressica.com]

Defined Under Namespace

Modules: CaptchaUtils, ControllerValidation, ImageHelpers, ModelValidation, QuickMagickBackend, VERSION, ViewHelpers Classes: Engine

Constant Summary collapse

@@image_options = 
{
    :image_color => 'white',
    :image_size => '110x30',
    :text_color => 'black',
    :text_font => 'arial',
    :text_size => 22
}
@@captcha_length = 
nil
@@backend = 
nil

Class Method Summary collapse

Class Method Details

.backend ⇒ Object 



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# File 'lib/quick_captcha.rb', line 46

def self.backend
  self.backend = :quick_magick unless @@backend
  @@backend
end

.backend=(backend) ⇒ Object 



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# File 'lib/quick_captcha.rb', line 51

def self.backend=(backend)
  if backend.nil?
    return @@backend = nil
  end
  if backend.is_a?(Symbol) || backend.is_a?(String)
    backend = backend.to_s.camelize
    backend_const = const_get(backend + 'Backend') rescue nil
    backend_const = const_get(backend) rescue nil unless backend_const
    raise "unsupported backend: #{backend}" unless backend_const
  else
    backend_const = backend
  end
  unless backend_const.respond_to?(:generate_simple_captcha_image)
    raise "invalid backend: #{backend_const} - does not respond to :generate_simple_captcha_image"
  end
  @@backend = backend_const
end

.captcha_length ⇒ Object 



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# File 'lib/quick_captcha.rb', line 33

def self.captcha_length
  @@captcha_length ||= 6
end

.captcha_length=(length) ⇒ Object 



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# File 'lib/quick_captcha.rb', line 37

def self.captcha_length=(length)
  if length
    raise "invalid captcha length < 0 : #{length}" if length <= 0
    raise "invalid captcha length > 20 : #{length}" if length > 20
  end
  @@captcha_length = length
end

.image_options ⇒ Object 



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# File 'lib/quick_captcha.rb', line 24

def self.image_options
  @@image_options
end

.image_options=(options) ⇒ Object 



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# File 'lib/quick_captcha.rb', line 28

def self.image_options=(options)
  @@image_options.merge! options
end