1 files changed, 96 insertions, 0 deletions
diff --git a/www/wiki/includes/search/ParserOutputSearchDataExtractor.php b/www/wiki/includes/search/ParserOutputSearchDataExtractor.php
new file mode 100644
index 00000000..4b60a0c5
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+++ b/www/wiki/includes/search/ParserOutputSearchDataExtractor.php
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+<?php
+
+namespace MediaWiki\Search;
+
+use Category;
+use ParserOutput;
+use Title;
+
+/**
+ * Extracts data from ParserOutput for indexing in the search engine.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ * http://www.gnu.org/copyleft/gpl.html
+ *
+ * @since 1.28
+ */
+class ParserOutputSearchDataExtractor {
+
+	/**
+	 * Get a list of categories, as an array with title text strings.
+	 *
+	 * @param ParserOutput $parserOutput
+	 * @return string[]
+	 */
+	public function getCategories( ParserOutput $parserOutput ) {
+		$categories = [];
+
+		foreach ( $parserOutput->getCategoryLinks() as $key ) {
+			$categories[] = Category::newFromName( $key )->getTitle()->getText();
+		}
+
+		return $categories;
+	}
+
+	/**
+	 * Get a list of external links from ParserOutput, as an array of strings.
+	 *
+	 * @param ParserOutput $parserOutput
+	 * @return string[]
+	 */
+	public function getExternalLinks( ParserOutput $parserOutput ) {
+		return array_keys( $parserOutput->getExternalLinks() );
+	}
+
+	/**
+	 * Get a list of outgoing wiki links (including interwiki links), as
+	 * an array of prefixed title strings.
+	 *
+	 * @param ParserOutput $parserOutput
+	 * @return string[]
+	 */
+	public function getOutgoingLinks( ParserOutput $parserOutput ) {
+		$outgoingLinks = [];
+
+		foreach ( $parserOutput->getLinks() as $linkedNamespace => $namespaceLinks ) {
+			foreach ( array_keys( $namespaceLinks ) as $linkedDbKey ) {
+				$outgoingLinks[] =
+					Title::makeTitle( $linkedNamespace, $linkedDbKey )->getPrefixedDBkey();
+			}
+		}
+
+		return $outgoingLinks;
+	}
+
+	/**
+	 * Get a list of templates used in the ParserOutput content, as prefixed title strings
+	 *
+	 * @param ParserOutput $parserOutput
+	 * @return string[]
+	 */
+	public function getTemplates( ParserOutput $parserOutput ) {
+		$templates = [];
+
+		foreach ( $parserOutput->getTemplates() as $tNS => $templatesInNS ) {
+			foreach ( array_keys( $templatesInNS ) as $tDbKey ) {
+				$templateTitle = Title::makeTitle( $tNS, $tDbKey );
+				$templates[] = $templateTitle->getPrefixedText();
+			}
+		}
+
+		return $templates;
+	}
+
+}