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<?php |
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namespace ApacheSolrForTypo3\Solr; |
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/*************************************************************** |
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* Copyright notice |
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* |
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* (c) 2010-2015 Ingo Renner <[email protected]> |
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* All rights reserved |
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* |
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* This script is part of the TYPO3 project. The TYPO3 project is |
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* free software; you can redistribute it and/or modify |
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* it under the terms of the GNU General Public License as published by |
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* the Free Software Foundation; either version 3 of the License, or |
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* (at your option) any later version. |
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* |
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* The GNU General Public License can be found at |
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* http://www.gnu.org/copyleft/gpl.html. |
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* |
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* This script is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU General Public License for more details. |
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* |
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* This copyright notice MUST APPEAR in all copies of the script! |
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***************************************************************/ |
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use ApacheSolrForTypo3\Solr\System\Logging\SolrLogManager; |
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use TYPO3\CMS\Core\Utility\GeneralUtility; |
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/** |
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* Content extraction class for TYPO3 pages. |
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* |
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* @author Ingo Renner <[email protected]> |
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*/ |
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class Typo3PageContentExtractor extends HtmlContentExtractor |
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{ |
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/** |
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* @var \ApacheSolrForTypo3\Solr\System\Logging\SolrLogManager |
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*/ |
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protected $logger = null; |
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/** |
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* Shortcut method to retrieve the raw content marked for indexing. |
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* |
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* @return string Content marked for indexing. |
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*/ |
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public function getContentMarkedForIndexing() |
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{ |
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return $this->extractContentMarkedForIndexing($this->content); |
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} |
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/** |
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* Extracts the markup wrapped with TYPO3SEARCH_begin and TYPO3SEARCH_end |
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* markers. |
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* |
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* @param string $html HTML markup with TYPO3SEARCH markers for content that should be indexed |
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* @return string HTML markup found between TYPO3SEARCH markers |
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*/ |
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protected function extractContentMarkedForIndexing($html) |
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{ |
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preg_match_all('/<!--\s*?TYPO3SEARCH_begin\s*?-->.*?<!--\s*?TYPO3SEARCH_end\s*?-->/mis', |
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$html, $indexableContents); |
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$indexableContent = implode($indexableContents[0], ''); |
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$indexableContent = $this->excludeContentByClass($indexableContent); |
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if (empty($indexableContent) && $this->getConfiguration()->getLoggingIndexingMissingTypo3SearchMarkers()) { |
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$this->logger = GeneralUtility::makeInstance(SolrLogManager::class, /** @scrutinizer ignore-type */ __CLASS__); |
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$this->logger->log(SolrLogManager::WARNING, 'No TYPO3SEARCH markers found.'); |
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} |
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return $indexableContent; |
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} |
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/** |
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* Exclude some html parts by class inside content wrapped with TYPO3SEARCH_begin and TYPO3SEARCH_end |
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* markers. |
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* |
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* @param string $indexableContent HTML markup |
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* @return string HTML |
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*/ |
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public function excludeContentByClass($indexableContent) |
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{ |
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if (empty(trim($indexableContent))) { |
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return $indexableContent; |
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} |
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$excludeClasses = $this->getConfiguration()->getIndexQueuePagesExcludeContentByClassArray(); |
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if (count($excludeClasses) === 0) { |
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return $indexableContent; |
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} |
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$isInContent = Util::containsOneOfTheStrings($indexableContent, $excludeClasses); |
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if (!$isInContent) { |
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return $indexableContent; |
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} |
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$doc = new \DOMDocument('1.0', 'UTF-8'); |
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libxml_use_internal_errors(true); |
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$doc->loadHTML('<?xml version="1.0" encoding="UTF-8"?>' . PHP_EOL . $indexableContent); |
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$xpath = new \DOMXPath($doc); |
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foreach ($excludeClasses as $excludePart) { |
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$elements = $xpath->query("//*[contains(@class,'" . $excludePart . "')]"); |
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if (count($elements) == 0) { |
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continue; |
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} |
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foreach ($elements as $element) { |
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$element->parentNode->removeChild($element); |
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} |
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} |
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$html = $doc->saveHTML($doc->documentElement->parentNode); |
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// remove XML-Preamble, newlines and doctype |
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$html = preg_replace('/(<\?xml[^>]+\?>|\r?\n|<!DOCTYPE.+?>)/imS', '', $html); |
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$html = str_replace(['<html>', '</html>', '<body>', '</body>'], ['', '', '', ''], $html); |
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return $html; |
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} |
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/** |
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* Returns the cleaned indexable content from the page's HTML markup. |
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* |
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* The content is cleaned from HTML tags and control chars Solr could |
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* stumble on. |
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* |
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* @return string Indexable, cleaned content ready for indexing. |
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*/ |
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public function getIndexableContent() |
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{ |
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$content = $this->extractContentMarkedForIndexing($this->content); |
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// clean content |
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$content = self::cleanContent($content); |
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$content = trim($content); |
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$content = preg_replace('!\s+!', ' ', $content); // reduce multiple spaces to one space |
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return $content; |
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} |
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/** |
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* Retrieves the page's title by checking the indexedDocTitle, altPageTitle, |
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* and regular page title - in that order. |
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* |
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* @return string the page's title |
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*/ |
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public function getPageTitle() |
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{ |
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$page = $GLOBALS['TSFE']; |
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if ($page->indexedDocTitle) { |
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$pageTitle = $page->indexedDocTitle; |
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} elseif ($page->altPageTitle) { |
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$pageTitle = $page->altPageTitle; |
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} else { |
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$pageTitle = $page->page['title']; |
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} |
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return $pageTitle; |
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} |
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/** |
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* Retrieves the page's body |
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* |
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* @return string the page's body |
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*/ |
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public function getPageBody() |
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{ |
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$pageContent = $this->content; |
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return stristr($pageContent, '<body'); |
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} |
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} |
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TYPO3-Solr /
ext-solr
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