{

const EXCLUDE_FLAG_PATTERN = 'data-rocketjavascript="false"';

/**

protected $request;

/**

protected $config;

/**

protected $allowedOnPage;

/**

protected $storeManager;

/**

public function __construct(

\Magento\Framework\App\RequestInterface $request,

\Magefan\RocketJavaScript\Model\Config $config,

?\Magento\Store\Model\StoreManagerInterface $storeManager = null

) {

$this->request = $request;

$this->config = $config;

$objectManager = \Magento\Framework\App\ObjectManager::getInstance();

$this->storeManager = $storeManager ?: $objectManager->get(

\Magento\Store\Model\StoreManagerInterface::class

);

}

/**

public function aroundRenderResult(

\Magento\Framework\Controller\ResultInterface $subject,

\Closure $proceed,

ResponseHttp $response

) {

$result = $proceed($response);

if (PHP_SAPI === 'cli' || $this->request->isXmlHttpRequest() || !$this->isEnabled()) {

return $result;

}

if (!$this->isAllowedOnPage()) {

return $result;

}

$ignoredStrings = $this->config->getIgnoreJavaScript() ?: '';

$ignoredStrings = explode("\n", str_replace("\r", "\n", $ignoredStrings));

$ignoredStrings = array_map('trim', $ignoredStrings);

$ignoredStrings = array_filter($ignoredStrings);

$html = $response->getBody();

$scripts = [];

$positions = [];

$startTag = '<script';

$endTag = '</script>';

$lastPos = 0;

$start = 0;

// First pass: find all script tags and their positions

while (false !== ($start = stripos($html, $startTag, $start))) {

$end = stripos($html, $endTag, $start);

if (false === $end) {

break;

}

$scriptEnd = $end + strlen($endTag);

$script = substr($html, $start, $scriptEnd - $start);

// Check for exclusion flags or ignored content

if (false !== stripos($script, self::EXCLUDE_FLAG_PATTERN) ||

false !== stripos($script, 'application/ld+json')) {

$start = $scriptEnd; // Move pointer past this script

continue;

}

$isIgnored = false;

foreach ($ignoredStrings as $ignoredString) {

if (false !== stripos($script, $ignoredString)) {

$isIgnored = true;

break;

}

}

if ($isIgnored) {

$start = $scriptEnd;

continue;

}

// Store the script and its position

$scripts[] = $script;

$positions[] = ['start' => $start, 'end' => $scriptEnd];

$start = $scriptEnd; // Move pointer for the next search

}

// Second pass: reconstruct HTML and append scripts

if (empty($positions)) {

return $result; // No scripts found to move

}

$newHtml = '';

$lastPos = 0;

foreach ($positions as $pos) {

// Append the HTML content before the current script tag

$newHtml .= substr($html, $lastPos, $pos['start'] - $lastPos);

$lastPos = $pos['end'];

}

// Append the remaining HTML after the last script tag

$newHtml .= substr($html, $lastPos);

// Append the scripts before the closing </body> tag or at the end

$allScripts = implode(PHP_EOL, $scripts);

$bodyEndPos = stripos($newHtml, '</body>');

if ($bodyEndPos !== false) {

$newHtml = substr_replace($newHtml, $allScripts, $bodyEndPos, 0);

} else {

$newHtml .= $allScripts;

}

$response->setBody($newHtml);

return $result;

}

private function isEnabled()

{

$enabled = $this->config->isEnabled() && $this->config->isDeferredEnabled();

if ($enabled) {

/* check if Amasty AMP enabled */

if ($this->request->getParam('is_amp')) {

return false;

}

/* check if Plumrocket AMP enabled */

$isAmpRequest = $this->config->isAmpRequest();

if ($isAmpRequest) {

/* We know that using objectManager is not a not a good practice,

$objectManager = \Magento\Framework\App\ObjectManager::getInstance();

$isAmpRequest = $objectManager->get('\Plumrocket\Amp\Helper\Data')

->isAmpRequest();

}

$enabled = !$isAmpRequest;

}

return $enabled;

}

/**

private function isAllowedOnPage()

{

if (null !== $this->allowedOnPage) {

return $this->allowedOnPage;

}

$this->allowedOnPage = false;

$spPages = $this->config->getDisallowedPages();

$spPages = explode("\n", str_replace("\r", "\n", $spPages));

foreach ($spPages as $key => $path) {

$spPages[$key] = trim($spPages[$key]);

if (empty($spPages[$key])) {

unset($spPages[$key]);

}

}

$baseUrl = trim($this->storeManager->getStore()->getBaseUrl(), '/');

$baseUrl = str_replace('/index.php', '', $baseUrl);

$currentUrl = $this->storeManager->getStore()->getCurrentUrl();

$currentUrl = explode('?', $currentUrl);

$currentUrl = trim($currentUrl[0], '/');

foreach (['index.php', '.php', '.html'] as $end) {

$el = mb_strlen($end);

$cl = mb_strlen($currentUrl);

if (mb_strrpos($currentUrl, $end) == $cl - $el) {

$currentUrl = mb_substr($currentUrl, 0, $cl - $el);

}

}

$currentUrl = str_replace('/index.php', '', $currentUrl);

$currentUrl = trim($currentUrl, '/');

foreach ($spPages as $key => $path) {

$path = trim($path, '/');

if (mb_strlen($path)) {

if ('*' == $path[0]) {

$subPath = trim($path, '*/');

if (mb_strlen($currentUrl) - mb_strlen($subPath) === mb_strrpos($currentUrl, $subPath)) {

$this->allowedOnPage = true;

break;

}

}

if ('*' == $path[mb_strlen($path) - 1]) {

if (0 === mb_strpos($currentUrl, $baseUrl . '/' . trim($path, '*/'))) {

$this->allowedOnPage = true;

break;

}

}

if ($currentUrl == $baseUrl . '/' . trim($path, '/')) {

$this->allowedOnPage = true;

break;

}

} else {

//homepage

if ($currentUrl == $baseUrl) {

$this->allowedOnPage = true;

break;

}

}

}

return $this->allowedOnPage = !$this->allowedOnPage;

}