1 files changed, 132 insertions, 0 deletions
diff --git a/www/wiki/includes/api/ApiFileRevert.php b/www/wiki/includes/api/ApiFileRevert.php
new file mode 100644
index 00000000..b68b9482
--- /dev/null
+++ b/www/wiki/includes/api/ApiFileRevert.php
@@ -0,0 +1,132 @@
+<?php
+/**
+ * Copyright © 2011 Bryan Tong Minh <Bryan.TongMinh@Gmail.com>
+ *
+ * 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
+ */
+
+/**
+ * @ingroup API
+ */
+class ApiFileRevert extends ApiBase {
+	/** @var LocalFile */
+	protected $file;
+
+	/** @var string */
+	protected $archiveName;
+
+	/** @var array */
+	protected $params;
+
+	public function execute() {
+		$this->useTransactionalTimeLimit();
+
+		$this->params = $this->extractRequestParams();
+		// Extract the file and archiveName from the request parameters
+		$this->validateParameters();
+
+		// Check whether we're allowed to revert this file
+		$this->checkTitleUserPermissions( $this->file->getTitle(), [ 'edit', 'upload' ] );
+
+		$sourceUrl = $this->file->getArchiveVirtualUrl( $this->archiveName );
+		$status = $this->file->upload(
+			$sourceUrl,
+			$this->params['comment'],
+			$this->params['comment'],
+			0,
+			false,
+			false,
+			$this->getUser()
+		);
+
+		if ( $status->isGood() ) {
+			$result = [ 'result' => 'Success' ];
+		} else {
+			$result = [
+				'result' => 'Failure',
+				'errors' => $this->getErrorFormatter()->arrayFromStatus( $status ),
+			];
+		}
+
+		$this->getResult()->addValue( null, $this->getModuleName(), $result );
+	}
+
+	/**
+	 * Validate the user parameters and set $this->archiveName and $this->file.
+	 * Throws an error if validation fails
+	 */
+	protected function validateParameters() {
+		// Validate the input title
+		$title = Title::makeTitleSafe( NS_FILE, $this->params['filename'] );
+		if ( is_null( $title ) ) {
+			$this->dieWithError(
+				[ 'apierror-invalidtitle', wfEscapeWikiText( $this->params['filename'] ) ]
+			);
+		}
+		$localRepo = RepoGroup::singleton()->getLocalRepo();
+
+		// Check if the file really exists
+		$this->file = $localRepo->newFile( $title );
+		if ( !$this->file->exists() ) {
+			$this->dieWithError( 'apierror-missingtitle' );
+		}
+
+		// Check if the archivename is valid for this file
+		$this->archiveName = $this->params['archivename'];
+		$oldFile = $localRepo->newFromArchiveName( $title, $this->archiveName );
+		if ( !$oldFile->exists() ) {
+			$this->dieWithError( 'filerevert-badversion' );
+		}
+	}
+
+	public function mustBePosted() {
+		return true;
+	}
+
+	public function isWriteMode() {
+		return true;
+	}
+
+	public function getAllowedParams() {
+		return [
+			'filename' => [
+				ApiBase::PARAM_TYPE => 'string',
+				ApiBase::PARAM_REQUIRED => true,
+			],
+			'comment' => [
+				ApiBase::PARAM_DFLT => '',
+			],
+			'archivename' => [
+				ApiBase::PARAM_TYPE => 'string',
+				ApiBase::PARAM_REQUIRED => true,
+			],
+		];
+	}
+
+	public function needsToken() {
+		return 'csrf';
+	}
+
+	protected function getExamplesMessages() {
+		return [
+			'action=filerevert&filename=Wiki.png&comment=Revert&' .
+				'archivename=20110305152740!Wiki.png&token=123ABC'
+				=> 'apihelp-filerevert-example-revert',
+		];
+	}
+}