/**
* @author : PhongTX - 10/08/2012
* @name : showAction
* @copyright : FPT Online
* @todo : Show Action
*/
public function showAction()
{
//Disable layout
$this->_helper->layout->disableLayout(true);
//Set no render view
$this->_helper->viewRenderer->setNoRender(true);
$wordlen = $this->_request->getParam('wordlen', '4');
$width = $this->_request->getParam('width', '60');
$height = $this->_request->getParam('height', '40');
$captcha_id = trim(strip_tags($this->_request->getParam('captcha_id')));
$captcha_id = !empty($captcha_id) ? $captcha_id : 'captchaID';
//captcha new object
if (APPLICATION_ENV != 'development') {
$captcha = new Fpt_Captcha_ImageMem();
} else {
$captcha = new Zend_Captcha_Image();
}
//Set lenght string captcha
$captcha->setWordLen($wordlen);
//Set time out
$captcha->setTimeout('300');
//Set height image captcha
$captcha->setHeight($height);
//Set width image captcha
$captcha->setWidth($width);
//Set font captcha
$captcha->setFontSize(14);
$captcha->setDotNoiseLevel(0);
$captcha->setLineNoiseLevel(0);
if (APPLICATION_ENV != 'development') {
//set image captcha url
$captcha->setImgUrl($this->view->configView['url'] . '/captcha/viewimg/id');
} else {
//Set dir folder image captcha
$captcha->setImgDir(APPLICATION_PATH . '/../public/captcha');
//set image captcha url
$captcha->setImgUrl($this->view->configView['url'] . '/captcha');
}
//Set file font use captcha
$captcha->setFont(APPLICATION_PATH . '/data/fonts/tahoma.ttf');
//set image captcha alt
$captcha->setImgAlt('Mã xác nhận gửi bài viết đến tòa soạn');
//Generate captcha
$captcha->generate();
//Render image captcha
$image = $captcha->render();
// difine out captcha id
$input = '<input type="hidden" name="' . $captcha_id . '" id="' . $captcha_id . '" value ="' . $captcha->getId() . '" />';
//Get word captcha
$word = $captcha->getWord();
//set session word captcha
$_SESSION['word'] = $word;
//Define array response
$arrResponse = array('html' => $image . $input);
//Return data json
echo Zend_Json::encode($arrResponse);
exit;
}