filterProvider = $filterProvider; $this->scopeConfig = $scopeConfig ?: \Magento\Framework\App\ObjectManager::getInstance() ->get(\Magento\Framework\App\Config\ScopeConfigInterface::class); } /** * Retrieve short filtered content * @param string $content * @param mixed $len * @param mixed $endCharacters * @return string * @throws \Exception */ public function execute($content, $len = null, $endCharacters = null) { $content = (string)$content; $key = md5($content) . $len . $endCharacters; if (!isset($this->executedContent[$key])) { $content = $this->filterProvider->getPageFilter()->filter( (string) $content ?: '' ); $htmlAllowed = $this->scopeConfig->getValue( 'mfblog/post_list/html_allowed', \Magento\Store\Model\ScopeInterface::SCOPE_STORE ); if (!$htmlAllowed) { foreach (['style', 'script'] as $tagToRemove) { $content = preg_replace("~\<" . $tagToRemove . "(.*)\>(.*)\<\/" . $tagToRemove . "\>~", '', $content); } $content = trim(strip_tags((string)$content)); } $content = $this->setPageBreakOnLen($content, $len); $pageBreaker = ''; $len = mb_strpos($content, $pageBreaker); if (!$len) { return $content; } /* Do not cut words * while ($len < mb_strlen($content) && !in_array(mb_substr($content, $len, 1), [' ', '<', "\t", "\r", "\n"])) { $len++; } */ $content = mb_substr($content, 0, $len); try { /* Add closing html tags */ $previousErrorState = libxml_use_internal_errors(true); $dom = new \DOMDocument('1.0', 'utf-8'); $dom->loadHTML('' . '' . $content . ''); libxml_use_internal_errors($previousErrorState); $body = $dom->getElementsByTagName('body'); if ($body && $body->length > 0) { $body = $body->item(0); $content = $dom->saveHTML($body); $content = preg_replace('#^|$#', '', $content); } } catch (\Exception $e) { /* Do nothing, it's OK */ } if ($endCharacters === null) { $endCharacters = $this->scopeConfig->getValue( 'mfblog/post_list/end_characters', \Magento\Store\Model\ScopeInterface::SCOPE_STORE ); } if ($endCharacters) { $trimMask = " \t\n\r\0\x0B,.!?"; if ($p = strrpos($content, 'executedContent[$key] = (string)$content; } return $this->executedContent[$key]; } /** * @param string $content * @param $len * @return string */ private function setPageBreakOnLen(string $content, $len): string { $pageBreaker = ''; if (!$len && false !== mb_strpos($content, $pageBreaker)) { /* No length and already has page breaker */ return $content; } if (!$len) { $len = $this->getDefaultShortContentLength(); } $content = str_replace($pageBreaker, '', $content); $previousErrorState = libxml_use_internal_errors(true); $dom = new \DOMDocument('1.0', 'utf-8'); $dom->loadHTML('' . '' . $content . ''); libxml_use_internal_errors($previousErrorState); $textLength = 0; $processNode = function ($node) use (&$textLength, $len, $dom, $pageBreaker, &$pageBreakInserted, &$processNode) { if ($pageBreakInserted) { return; } if ($node->childNodes) { foreach ($node->childNodes as $child) { $processNode($child); } } if ($node->nodeType === XML_TEXT_NODE) { $text = $node->nodeValue; $words = preg_split('/(\s+)/u', $text, -1, PREG_SPLIT_NO_EMPTY | PREG_SPLIT_DELIM_CAPTURE); $newText = ''; foreach ($words as $word) { $newText .= $word; if (trim($word) === '') { continue; } if ($textLength + mb_strlen($word, 'utf-8') >= $len && !$pageBreakInserted) { $newText .= $pageBreaker; $pageBreakInserted = true; } $textLength += mb_strlen($word, 'utf-8') + 1; } $node->nodeValue = $newText; } }; $body = $dom->getElementsByTagName('body')->item(0); if ($body) { $processNode($body); } $content = $dom->saveHTML($body); $content = preg_replace('#^|$#', '', $content); $content = str_replace('<!-- pagebreak -->', $pageBreaker, $content); return $content; } /** * @return int */ private function getDefaultShortContentLength(): int { return (int)$this->scopeConfig->getValue( 'mfblog/post_list/shortcotent_length', \Magento\Store\Model\ScopeInterface::SCOPE_STORE ) ?: 2000; } }