Class: MathCaptcha::Captcha

Inherits:
Object
  • Object
show all
Defined in:
lib/math_captcha.rb

Instance Method Summary collapse

Constructor Details

#initialize ⇒ Captcha

Returns a new instance of Captcha.



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# File 'lib/math_captcha.rb', line 22

def	initialize
  @numbers = [0,1,2,3,4,5,6,7,8,9]
  @numbers_alpha = {
    'es' => {
	  0 => 'cero',
	  1 => 'uno', 
	  2 => 'dos',
	  3 => 'tres',
	  4 => 'cuatro',
	  5 => 'cinco',
	  6 => 'seis',
	  7 => 'siete',
	  8 => 'ocho', 
	  9 => 'nueve'
    },
	'eu' => {
	  0 => 'huts',
1 => 'bat',
2 => 'bi',
3 => 'hiru',
4 => 'lau',
	  5 => 'bost',
	  6 => 'sei',
	  7 => 'zazpi',
8 => 'zortzi',
	  9 => 'bederatzi'	  
	},
	'en' => {
	  0 => 'zero',
	  1 => 'one',
	  2 => 'two',
	  3 => 'three',
	  4 => 'four',
	  5 => 'five',
	  6 => 'six',
	  7 => 'seven',
	  8 => 'eight',
	  9 => 'nine'
	}
  }

  # temporary remove division operation

  @ops = {
  'es' => {
	  '+' => 'más',
	  '-' => 'menos',
	  '*' => 'por'
    },
	'eu' => {
	  '+' => 'gehi',
	  '-' => 'ken',
	  '*' => 'bider'
	},
	'en' => {
	  '+' => 'plus',
	  '-' => 'minus',
	  '*' => 'times'
	}
  }
end

Instance Method Details

#build_challenge(options = {}) ⇒ Object 



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# File 'lib/math_captcha.rb', line 89

def	build_challenge(options={})
  # loop to prevent negative numbers
  begin 
    digit1 = @numbers[rand(9)]
    digit2 = @numbers[rand(9)]
    op = @ops[locale].keys[rand(3)]
  
    value = eval("#{digit1}#{op}#{digit2}")
  end while value < 0
  
  encrypted = MathCaptcha::Utils.generate_key(value)
  question = "#{@numbers_alpha[locale][digit1]} #{@ops[locale][op]} #{@numbers_alpha[locale][digit2]}"
  challenge = Challenge.new(question, value, encrypted, options)

  return challenge
end

#locale ⇒ Object 



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# File 'lib/math_captcha.rb', line 84

def locale
  return @locale unless @locale.nil?    
  @locale = I18n.locale.to_s || I18n.default_locale.to_s || 'es'
end