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<?php
/**
* Pimcore
*
* This source file is available under two different licenses:
* - GNU General Public License version 3 (GPLv3)
* - Pimcore Enterprise License (PEL)
* Full copyright and license information is available in
* LICENSE.md which is distributed with this source code.
*
* @copyright Copyright (c) Pimcore GmbH (http://www.pimcore.org)
* @license http://www.pimcore.org/license GPLv3 and PEL
*/
namespace Pimcore\Bundle\CoreBundle\EventListener\Frontend;
use Pimcore\Bundle\CoreBundle\EventListener\Traits\PimcoreContextAwareTrait;
use Pimcore\Bundle\CoreBundle\EventListener\Traits\ResponseInjectionTrait;
use Pimcore\Http\Request\Resolver\EditmodeResolver;
use Pimcore\Http\Request\Resolver\PimcoreContextResolver;
use Pimcore\Model\Site;
use Pimcore\Model\Tool\Tag;
use Symfony\Component\HttpKernel\Event\FilterResponseEvent;
class TagManagerListener
{
use PimcoreContextAwareTrait;
use ResponseInjectionTrait;
/**
* @var EditmodeResolver
*/
private $editmodeResolver;
/**
* @var bool
*/
protected $enabled = true;
public function __construct(EditmodeResolver $editmodeResolver)
{
$this->editmodeResolver = $editmodeResolver;
}
/**
* @return bool
*/
public function disable()
{
$this->enabled = false;
return true;
}
/**
* @return bool
*/
public function enable()
{
$this->enabled = true;
return true;
}
/**
* @return bool
*/
public function isEnabled()
{
return $this->enabled;
}
/**
* @param FilterResponseEvent $event
*/
public function onKernelResponse(FilterResponseEvent $event)
{
$request = $event->getRequest();
if (!$event->isMasterRequest()) {
return;
}
if (!$this->matchesPimcoreContext($request, PimcoreContextResolver::CONTEXT_DEFAULT)) {
return;
}
// It's standard industry practice to exclude tracking if the request includes the header 'X-Purpose:preview'
$serverVars = $event->getRequest()->server;
if ($serverVars->get('HTTP_X_PURPOSE') == 'preview') {
return;
}
$response = $event->getResponse();
if (!$this->isHtmlResponse($response) || !$this->isEnabled()) {
return;
}
$list = new Tag\Config\Listing();
$tags = $list->load();
if (empty($tags)) {
return;
}
$html = null;
$content = $response->getContent();
$requestParams = array_merge($_GET, $_POST);
$editmode = $this->editmodeResolver->isEditmode($request);
/** @var $tag Tag\Config */
foreach ($tags as $tag) {
if ($tag->isDisabled()) {
continue;
}
$method = strtolower($tag->getHttpMethod());
$pattern = $tag->getUrlPattern();
$textPattern = $tag->getTextPattern();
// site check
if (Site::isSiteRequest() && $tag->getSiteId()) {
if (Site::getCurrentSite()->getId() != $tag->getSiteId()) {
continue;
}
} elseif (!Site::isSiteRequest() && $tag->getSiteId() && $tag->getSiteId() != 'default') {
continue;
}
$requestPath = rtrim($request->getPathInfo(), '/');
if (($method == strtolower($request->getMethod()) || empty($method)) &&
(empty($pattern) || @preg_match($pattern, $requestPath)) &&
(empty($textPattern) || strpos($content, $textPattern) !== false)
) {
$paramsValid = true;
foreach ($tag->getParams() as $param) {
if (!empty($param['name'])) {
if (!empty($param['value'])) {
if (!array_key_exists($param['name'], $requestParams) || $requestParams[$param['name']] != $param['value']) {
$paramsValid = false;
}
} else {
if (!array_key_exists($param['name'], $requestParams)) {
$paramsValid = false;
}
}
}
}
if (is_array($tag->getItems()) && $paramsValid) {
foreach ($tag->getItems() as $item) {
if ($item['disabled']) {
continue;
}
if ($editmode && !$item['enabledInEditmode']) {
continue;
}
if (!empty($item['element']) && !empty($item['code']) && !empty($item['position'])) {
if (in_array($item['element'], ['body', 'head'])) {
// check if the code should be inserted using one of the presets
// because this can be done much faster than using a html parser
if ($html) {
// reset simple_html_dom if set
$html->clear();
unset($html);
$html = null;
}
if ($item['position'] == 'end') {
$regEx = '@</' . $item['element'] . '>@i';
$content = preg_replace($regEx, "\n\n" . $item['code'] . "\n\n</" . $item['element'] . '>', $content, 1);
} else {
$regEx = '/<' . $item['element'] . '([^a-zA-Z])?( [^>]+)?>/';
$content = preg_replace($regEx, '<' . $item['element'] . "$1$2>\n\n" . $item['code'] . "\n\n", $content, 1);
}
} else {
// use simple_html_dom
if (!$html) {
include_once(PIMCORE_PATH . '/lib/simple_html_dom.php');
$html = str_get_html($content);
}
if ($html) {
$element = $html->find($item['element'], 0);
if ($element) {
if ($item['position'] == 'end') {
$element->innertext = $element->innertext . "\n\n" . $item['code'] . "\n\n";
} else {
// beginning
$element->innertext = "\n\n" . $item['code'] . "\n\n" . $element->innertext;
}
// we havve to reinitialize the html object, otherwise it causes problems with nested child selectors
$content = $html->save();
$html->clear();
unset($html);
$html = null;
}
}
}
}
}
}
}
}
if ($html && method_exists($html, 'clear')) {
$html->clear();
unset($html);
}
$response->setContent($content);
}
}

pimcore/lib/Pimcore/Bundle/CoreBundle/EventListener/Frontend/TagManagerListener.php line 76