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<?php
/*
* This file is part of the symfony package.
* (c) Fabien Potencier <fabien.potencier@symfony-project.com>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
/**
* sfWidgetFormReCaptcha renders a ReCaptcha widget.
*
* This widget uses ReCaptcha: http://recaptcha.net/
*
* The ReCaptcha API documentation can be found at http://recaptcha.net/apidocs/captcha/
*
* To be able to use this widget, you need an API key: http://recaptcha.net/api/getkey
*
* As it's not possible to change the name of ReCaptcha fields, you will have to add them manually
* when binding a form from an HTTP request.
*
* Here's a typical usage when embedding a captcha in a form with a contact[%s] name format:
*
* $captcha = array(
* 'recaptcha_challenge_field' => $request->getParameter('recaptcha_challenge_field'),
* 'recaptcha_response_field' => $request->getParameter('recaptcha_response_field'),
* );
* $this->form->bind(array_merge($request->getParameter('contact'), array('captcha' => $captcha)));
*
* @package symfony
* @subpackage widget
* @author Fabien Potencier <fabien.potencier@symfony-project.com>
* @version SVN: $Id: sfWidgetFormReCaptcha.class.php 7285 2008-02-03 09:50:35Z fabien $
*/
class sfWidgetFormReCaptcha extends sfWidgetForm
{
/**
* Configures the current widget.
*
* Available options:
*
* * public_key: The ReCaptcha public key
* * use_ssl: Whether to use SSL or not (false by default)
* * server_url: The URL for the HTTP API
* * server_url_ssl: The URL for the HTTPS API (when use_ssl is true)
*
* @see sfWidgetForm
*/
public function configure($options = array(), $messages = array())
{
$this->addRequiredOption('public_key');
$this->addOption('use_ssl', false);
$this->addOption('server_url', 'http://api.recaptcha.net');
$this->addOption('server_url_ssl', 'https://api-secure.recaptcha.net');
}
/**
* @see sfWidgetForm
*/
public function render($name, $value = null, $attributes = array(), $errors = array())
{
$server = $this->getServerUrl();
$key = $this->getOption('public_key');
return sprintf('
<script type="text/javascript" src="%s/challenge?k=%s"></script>
<noscript>
<iframe src="%s/noscript?k=%s" height="300" width="500" frameborder="0"></iframe><br />
<textarea name="recaptcha_challenge_field" rows="3" cols="40"></textarea>
<input type="hidden" name="recaptcha_response_field" value="manual_challenge" />
</noscript>
', $server, $key, $server, $key);
}
protected function getServerUrl()
{
return $this->getOption('use_ssl') ? $this->getOption('server_url_ssl') : $this->getOption('server_url');
}
}
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