@@ -8,4 +8,19 @@ end == In the view -<%= captcha_field("user") %> \ No newline at end of file +<p> + Unless you are a bot answer this question: <%= captcha_display %> +<p> +<p> + <%= captcha_field("user") %> +</p> + +== Generated HTML + +<p> + Unless you are a bot answer this question: <span class='less_captcha_challenge'>What is 4 + 7?</span> +</p> +<p> + <input type="text" name="entry[captcha]" /> + <input type="hidden" name="entry[captcha_answer]" value="e43b21e80194c61f30930a442f2c19de6fe74f8c" /> +</p> \ No newline at end of file README @@ -40,12 +40,21 @@ module Less module InstanceMethods # Sets up the passing answer for the captcha challenge # - # setup_captcha 'foo' + # setup_captcha # # options: # * <tt>answer</tt> - The passing answer for the captcha challenge - def setup_captcha(answer) - send(PREFIX + SUFFIX + '=', Digest::SHA1.hexdigest(SALT + answer.to_s)) + def setup_captcha + unless send(PREFIX) and send(PREFIX + SUFFIX) + b = rand(10) + 1 + a = b + rand(10) + op = ['+', '-'][rand(2)] + question = "What is #{a} #{op} #{b}?" + answer = a.send(op, b) + + send(PREFIX + '=', question.to_s) + send(PREFIX + SUFFIX + '=', Digest::SHA1.hexdigest(SALT + answer.to_s)) + end end end @@ -61,16 +70,35 @@ module Less # # You can use the +options+ argument to pass additional options to the text-field tag. def captcha_field(object, options={}) - b = rand(10) + 1 - a = b + rand(10) - op = ['+', '-'][rand(2)] - question = "What is #{a} #{op} #{b}?" - answer = a.send(op, b) - eval("@"+object.to_s).setup_captcha(answer) + if object.is_a?(String) or object.is_a?(Symbol) + eval("@"+object.to_s).setup_captcha + else + object.setup_captcha + end result = ActionView::Helpers::InstanceTag.new(object, PREFIX, self).to_input_field_tag("text", options) result << ActionView::Helpers::InstanceTag.new(object, PREFIX + SUFFIX, self).to_input_field_tag("hidden", {}) end + + # Use this helper to display a captcha challenge question + # + # <%= captcha_display %> + # + # the following HTML will be generated. + # + # <span class='less_captcha_challenge'>...</span> + # + def captcha_display + if object.is_a?(String) or object.is_a?(Symbol) + eval("@"+object.to_s).setup_captcha + captcha = eval("@"+object.to_s).send(PREFIX) + else + object.setup_captcha + captcha = object.send(PREFIX) + end + + "<span class='less_captcha_challenge'>#{captcha}</span>" + end end end end \ No newline at end of file lib/less_captcha.rb install.rb 92817d701a8389812d1472a339bbad47c96eaf99 bwyrosdick ben.wyrosdick@gmail.com http://github.com/bwyrosdick/less-captcha/commit/6bcfe61d4026e5e425a9c808792a80a8c03224f1 6bcfe61d4026e5e425a9c808792a80a8c03224f1 2008-03-25T09:10:46-07:00 2008-03-25T09:10:46-07:00 broke apart the question from the fields and updated README 343691b04a711ea021218c7573c0c2be0e6ae967 bwyrosdick ben.wyrosdick@gmail.com