Module: Merb::RecaptchaMixin

Defined in:
lib/merb-recaptcha/controller_mixin.rb

Instance Method Summary collapse

Instance Method Details

#recaptcha_valid? ⇒ Boolean

This method checks challenge and response data via Recaptcha API server.

  • It will return true, if filled captcha response is correct.

  • It will return false, if captcha is incorrect.

  • It will raise exception, if Recaptcha API server returns error.

Returns:

  • (Boolean) 


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# File 'lib/merb-recaptcha/controller_mixin.rb', line 11

def recaptcha_valid?
  return true if (Merb.testing? && !Merb::RecaptchaMixin.const_defined?(:DO_NOT_IGNORE_RECAPTCHA_IN_TESTING_ENV))
  return true if Merb::Plugins.config[:merb_recaptcha][:allow_disable_by_cookie] && cookies[:recaptcha_disabled]=="true"
  begin
    response = Net::HTTP.post_form(URI.parse("#{Merb::Recaptcha::API_VERIFY_SERVER}/verify"), {
      :privatekey => Merb::Plugins.config[:merb_recaptcha][:private_key],
      :remoteip => request.remote_ip,
      :challenge => params[:recaptcha_challenge_field],
      :response => params[:recaptcha_response_field]
    })
  rescue Exception => e
    if Merb.env?(:production) || ENV['OFFLINE']
      Merb.logger.error("when trying to connect to recaptcha, got #{e.message}")
      return true;
    else
      raise
    end
  end
  answer, error = response.body.split.map { |s| s.chomp }
  if answer == "true"
    true
  else
    Merb.logger.fatal("recaptcha error: #{error} for #{request.remote_ip}")
    case error
    when "incorrect-captcha-sol" then false
    when "invalid-site-public-key" then raise Merb::Recaptcha::InvalidSitePublicKey
    when "invalid-site-private-key" then raise Merb::Recaptcha::InvalidSitePrivateKey
    when "invalid-request-cookie" then raise Merb::Recaptcha::InvalidRequestCookie
    when "verify-params-incorrect" then raise Merb::Recaptcha::VerifyParamsIncorrect
    when "invalid-referrer" then raise Merb::Recaptcha::InvalidReferrer
    else
      raise Merb::Recaptcha::GenericError
    end
  end
end