Class: DcCaptchaRenderer

Inherits:
DcRenderer show all
Defined in:
app/helpers/dc_captcha_renderer.rb

Overview

This is renderer to return captcha code field when required on data entry. It currently implements only very basic captcha logic and only in Slovenian language.

Instance Method Summary collapse

Methods inherited from DcRenderer

#initialize, #render_css

Constructor Details

This class inherits a constructor from DcRenderer

Instance Method Details

#is_ok? ⇒ Boolean

Check if result of captcha is OK.

Returns:

  • (Boolean) 


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# File 'app/helpers/dc_captcha_renderer.rb', line 34

def is_ok?()
  return false unless self.respond_to?(@opts[:type])
  send(@opts[:type], true)
end

#render_html ⇒ Object

Return HTML part of code.



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# File 'app/helpers/dc_captcha_renderer.rb', line 100

def render_html
  captcha_type = @opts[:captcha_type] || @parent.params[:captcha_type]
  return 'DcCaptchaRenderer: Error captcha_type parameter not set!' unless captcha_type

  html = if self.respond_to?(captcha_type)
    send(captcha_type)
  else
    "DcCaptchaRenderer: Error method #{captcha_type} not defined!"
  end

  html
end

#simpl(check = false) ⇒ Object

Very simple captcha type. This is Slovenian only version.



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# File 'app/helpers/dc_captcha_renderer.rb', line 42

def simpl(check=false) #:nodoc:
  a1 = [['enajst', 11], ['dvanajst',12],['petindvajset',25],['triintridest',33],['devetnajst',19]]
  a2 = [['šest', 6], ['sedem',7],['osem',8],['devet',9],['deset',10]]
  op = [['seštejte','+'],['odštejte','-']]
#
  if check
#    Prosimo sestejte dvanajst in sedem    
    ha1, hop,  ha2 = Hash[a1], Hash[op], Hash[a2]
    n1, operacija, prvi, n2, drugi = @opts['vprasanje'].split(' ')
    rezultat = eval("#{ha1[prvi]}#{hop[operacija]}#{ha2[drugi]}")
    return rezultat == @opts['record']['rezultat'].to_i
  else
    txt = "Prosimo #{op[Random.rand(1)][0]} #{a1[Random.rand(4)][0]} in #{a2[Random.rand(4)][0]}"
    y = {}
    y['name'] = 'rezultat'
    y['html'] = {}
    y['html']['size'] = 5

    <<eot    
   <div style="background-color: #fafafa; border: 1px solid #eee; padding: 6px; margin: 5px 5px 25px 5px; font-size: 1.2em; border-radius: 2px;">
     #{txt}&nbsp;<span style="color: red;">*</span>&nbsp;#{@parent.text_field('record','rezultat', size: 5)} #{@parent.hidden_field_tag('vprasanje', txt )}
   </div>
eot
  end
end

#simple(check = false) ⇒ Object

Very simple captcha. Will ask for name of month in a year and check if entered value is valid when asked to check.

Parameters:

check

Boolean. Send true if you are checking if entered value is OK. Default is false.

Method will return HTML code required to render capcha field on form.

Returns: HTML code for displaying captcha field on page. If parameters check is true then method checks if written data is correct and returns true/false.



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# File 'app/helpers/dc_captcha_renderer.rb', line 80

def simple(check=false)
  if check
    number = @opts['question'].split(' ').last.chomp('?').to_i
    month = I18n.t('date.month_names')[number].downcase
    return month == @opts['record']['captcha_result'].to_i
  else
    number = Random.rand(11) + 1
    txt = I18n.t('drgcms.dc_captcha.simple_message', number)

    <<eot    
   <div style="background-color: #fafafa; border: 1px solid #eee; padding: 6px; margin: 5px 5px 25px 5px; font-size: 1.2em; border-radius: 2px;">
     #{txt}&nbsp;<span style="color: red;">*</span>&nbsp;#{@parent.text_field('record','captcha_result', size: 5)} #{@parent.hidden_field_tag('question', txt )}
   </div>
eot
  end
end