1 files changed, 128 insertions, 0 deletions
diff --git a/www/wiki/includes/page/CategoryPage.php b/www/wiki/includes/page/CategoryPage.php
new file mode 100644
index 00000000..491726be
--- /dev/null
+++ b/www/wiki/includes/page/CategoryPage.php
@@ -0,0 +1,128 @@
+<?php
+/**
+ * Special handling for category description pages.
+ * Modelled after ImagePage.php.
+ *
+ * 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
+ *
+ * @file
+ */
+
+/**
+ * Special handling for category description pages, showing pages,
+ * subcategories and file that belong to the category
+ */
+class CategoryPage extends Article {
+	# Subclasses can change this to override the viewer class.
+	protected $mCategoryViewerClass = CategoryViewer::class;
+
+	/**
+	 * @var WikiCategoryPage
+	 */
+	protected $mPage;
+
+	/**
+	 * @param Title $title
+	 * @return WikiCategoryPage
+	 */
+	protected function newPage( Title $title ) {
+		// Overload mPage with a category-specific page
+		return new WikiCategoryPage( $title );
+	}
+
+	function view() {
+		$request = $this->getContext()->getRequest();
+		$diff = $request->getVal( 'diff' );
+		$diffOnly = $request->getBool( 'diffonly',
+			$this->getContext()->getUser()->getOption( 'diffonly' ) );
+
+		if ( $diff !== null && $diffOnly ) {
+			parent::view();
+			return;
+		}
+
+		// Avoid PHP 7.1 warning of passing $this by reference
+		$categoryPage = $this;
+
+		if ( !Hooks::run( 'CategoryPageView', [ &$categoryPage ] ) ) {
+			return;
+		}
+
+		$title = $this->getTitle();
+		if ( $title->inNamespace( NS_CATEGORY ) ) {
+			$this->openShowCategory();
+		}
+
+		parent::view();
+
+		if ( $title->inNamespace( NS_CATEGORY ) ) {
+			$this->closeShowCategory();
+		}
+
+		# Use adaptive TTLs for CDN so delayed/failed purges are noticed less often
+		$outputPage = $this->getContext()->getOutput();
+		$outputPage->adaptCdnTTL( $this->mPage->getTouched(), IExpiringStore::TTL_MINUTE );
+	}
+
+	function openShowCategory() {
+		# For overloading
+	}
+
+	function closeShowCategory() {
+		// Use these as defaults for back compat --catrope
+		$request = $this->getContext()->getRequest();
+		$oldFrom = $request->getVal( 'from' );
+		$oldUntil = $request->getVal( 'until' );
+
+		$reqArray = $request->getValues();
+
+		$from = $until = [];
+		foreach ( [ 'page', 'subcat', 'file' ] as $type ) {
+			$from[$type] = $request->getVal( "{$type}from", $oldFrom );
+			$until[$type] = $request->getVal( "{$type}until", $oldUntil );
+
+			// Do not want old-style from/until propagating in nav links.
+			if ( !isset( $reqArray["{$type}from"] ) && isset( $reqArray["from"] ) ) {
+				$reqArray["{$type}from"] = $reqArray["from"];
+			}
+			if ( !isset( $reqArray["{$type}to"] ) && isset( $reqArray["to"] ) ) {
+				$reqArray["{$type}to"] = $reqArray["to"];
+			}
+		}
+
+		unset( $reqArray["from"] );
+		unset( $reqArray["to"] );
+
+		$viewer = new $this->mCategoryViewerClass(
+			$this->getContext()->getTitle(),
+			$this->getContext(),
+			$from,
+			$until,
+			$reqArray
+		);
+		$out = $this->getContext()->getOutput();
+		$out->addHTML( $viewer->getHTML() );
+		$this->addHelpLink( 'Help:Categories' );
+	}
+
+	function getCategoryViewerClass() {
+		return $this->mCategoryViewerClass;
+	}
+
+	function setCategoryViewerClass( $class ) {
+		$this->mCategoryViewerClass = $class;
+	}
+}