1 files changed, 107 insertions, 0 deletions
diff --git a/www/wiki/includes/specials/SpecialPageData.php b/www/wiki/includes/specials/SpecialPageData.php
new file mode 100644
index 00000000..978efa7f
--- /dev/null
+++ b/www/wiki/includes/specials/SpecialPageData.php
@@ -0,0 +1,107 @@
+<?php
+/**
+ * Special page to act as an endpoint for accessing raw page data.
+ *
+ * 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 page to act as an endpoint for accessing raw page data.
+ * The web server should generally be configured to make this accessible via a canonical URL/URI,
+ * such as <http://my.domain.org/data/main/Foo>.
+ *
+ * @class
+ * @ingroup SpecialPage
+ */
+class SpecialPageData extends SpecialPage {
+
+	/**
+	 * @var PageDataRequestHandler|null
+	 */
+	private $requestHandler = null;
+
+	public function __construct() {
+		parent::__construct( 'PageData' );
+	}
+
+	/**
+	 * Sets the request handler to be used by the special page.
+	 * May be used when a particular instance of PageDataRequestHandler is already
+	 * known, e.g. during testing.
+	 *
+	 * If no request handler is set using this method, a default handler is created
+	 * on demand by initDependencies().
+	 *
+	 * @param PageDataRequestHandler $requestHandler
+	 */
+	public function setRequestHandler( PageDataRequestHandler $requestHandler ) {
+		$this->requestHandler = $requestHandler;
+	}
+
+	/**
+	 * Initialize any un-initialized members from global context.
+	 * In particular, this initializes $this->requestHandler
+	 */
+	protected function initDependencies() {
+		if ( $this->requestHandler === null ) {
+			$this->requestHandler = $this->newDefaultRequestHandler();
+		}
+	}
+
+	/**
+	 * Creates a PageDataRequestHandler based on global defaults.
+	 *
+	 * @return PageDataRequestHandler
+	 */
+	private function newDefaultRequestHandler() {
+		return new PageDataRequestHandler();
+	}
+
+	/**
+	 * @see SpecialWikibasePage::execute
+	 *
+	 * @param string|null $subPage
+	 *
+	 * @throws HttpError
+	 */
+	public function execute( $subPage ) {
+		$this->initDependencies();
+
+		// If there is no title, show an HTML form
+		// TODO: Don't do this if HTML is not acceptable according to HTTP headers.
+		if ( !$this->requestHandler->canHandleRequest( $subPage, $this->getRequest() ) ) {
+			$this->showForm();
+			return;
+		}
+
+		$this->requestHandler->handleRequest( $subPage, $this->getRequest(), $this->getOutput() );
+	}
+
+	/**
+	 * Shows an informative page to the user; Called when there is no page to output.
+	 */
+	public function showForm() {
+		$this->getOutput()->showErrorPage( 'pagedata-title', 'pagedata-text' );
+	}
+
+	public function isListed() {
+		// Do not list this page in Special:SpecialPages
+		return false;
+	}
+
+}