Module: Recaptcha::ClientHelper

Defined in:
lib/recaptcha/client_helper.rb

Instance Method Summary collapse

Instance Method Details

#recaptcha_tags(options = {}) ⇒ Object

Your public API can be specified in the options hash or preferably the environment variable RECAPTCHA_PUBLIC_KEY.

Raises:



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# File 'lib/recaptcha/client_helper.rb', line 5

def recaptcha_tags(options = {})
  # Default options
  key   = options[:public_key] ||= ENV['RECAPTCHA_PUBLIC_KEY']
  error = options[:error] ||= session[:recaptcha_error]
  uri   = options[:ssl] ? RECAPTCHA_API_SECURE_SERVER : RECAPTCHA_API_SERVER
  html  = ""
  if options[:display]
    html << %{<script type="text/javascript">\n}
    html << %{  var RecaptchaOptions = #{options[:display].to_json};\n}
    html << %{</script>\n}
  end
  if options[:ajax]
    html << %{<div id="dynamic_recaptcha"></div>}
    html << %{<script type="text/javascript" src="#{uri}/js/recaptcha_ajax.js"></script>\n}
    html << %{<script type="text/javascript">\n}
    html << %{  Recaptcha.create('#{key}', document.getElementById('dynamic_recaptcha')#{options[:display] ? '' : ',RecaptchaOptions'});}
    html << %{</script>\n}
  else
    html << %{<script type="text/javascript" src="#{uri}/challenge?k=#{key}}
    html << %{#{error ? "&error=#{CGI::escape(error)}" : ""}"></script>\n}
    unless options[:noscript] == false
      html << %{<noscript>\n  }
      html << %{<iframe src="#{uri}/noscript?k=#{key}" }
      html << %{height="#{options[:iframe_height] ||= 300}" }
      html << %{width="#{options[:iframe_width]   ||= 500}" }
      html << %{frameborder="0"></iframe><br/>\n  }
      html << %{<textarea name="recaptcha_challenge_field" }
      html << %{rows="#{options[:textarea_rows] ||= 3}" }
      html << %{cols="#{options[:textarea_cols] ||= 40}"></textarea>\n  }
      html << %{<input type="hidden" name="recaptcha_response_field" value="manual_challenge">}
      html << %{</noscript>\n}
    end
  end
  raise RecaptchaError, "No public key specified." unless key
  return html
end