public function dispatchLoopShutdown()
{
if (!Tool::isHtmlResponse($this->getResponse())) {
return;
}
$siteKey = \Pimcore\Tool\Frontend::getSiteKey();
$reportConfig = \Pimcore\Config::getReportConfig();
if ($this->enabled && isset($reportConfig->tagmanager->sites->{$siteKey}->containerId)) {
$containerId = $reportConfig->tagmanager->sites->{$siteKey}->containerId;
if ($containerId) {
$codeHead = <<<CODE
<!-- Google Tag Manager -->
<script>(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
})(window,document,'script','dataLayer','{$containerId}');</script>
<!-- End Google Tag Manager -->
CODE;
$codeBody = <<<CODE
<!-- Google Tag Manager (noscript) -->
<noscript><iframe src="https://www.googletagmanager.com/ns.html?id={$containerId}"
height="0" width="0" style="display:none;visibility:hidden"></iframe></noscript>
<!-- End Google Tag Manager (noscript) -->
CODE;
$body = $this->getResponse()->getBody();
// search for the end <head> tag, and insert the google tag manager code before
// this method is much faster than using simple_html_dom and uses less memory
$headEndPosition = stripos($body, "</head>");
if ($headEndPosition !== false) {
$body = substr_replace($body, $codeHead . "</head>", $headEndPosition, 7);
}
// insert code after the opening <body> tag
$body = preg_replace("@<body(>|.*?[^?]>)@", "<body\$1\n\n" . $codeBody, $body);
$this->getResponse()->setBody($body);
}
}
}