wikimedia / mediawiki

maintenance/eraseArchivedFile.php

<?php

For compatibility and reusability of your code, PSR1 recommends that a file should introduce either new symbols (like classes, functions, etc.) or have side-effects (like outputting something, or including other files), but not both at the same time. The first symbol is defined on line 35 and the first side effect is on line 25.

/**
 * Delete archived (non-current) files from storage
 *
 * 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 Maintenance
 * @author Aaron Schulz
 */

require_once __DIR__ . '/Maintenance.php';

/**
 * Maintenance script to delete archived (non-current) files from storage.
 *
 * @todo Maybe add some simple logging
 *
 * @ingroup Maintenance
 * @since 1.22
 */
class EraseArchivedFile extends Maintenance {
	public function __construct() {
		parent::__construct();
		$this->addDescription( 'Erases traces of deleted files.' );
		$this->addOption( 'delete', 'Perform the deletion' );
		$this->addOption( 'filename', 'File name', false, true );
		$this->addOption( 'filekey', 'File storage key (with extension) or "*"', true, true );
	}

	public function execute() {
		if ( !$this->hasOption( 'delete' ) ) {
			$this->output( "Use --delete to actually confirm this script\n" );
		}

		$filekey = $this->getOption( 'filekey' );
		$filename = $this->getOption( 'filename' );

		if ( $filekey === '*' ) { // all versions by name
			if ( !strlen( $filename ) ) {
				$this->error( "Missing --filename parameter.", 1 );
			}
			$afile = false;
		} else { // specified version
			$dbw = $this->getDB( DB_MASTER );
			$row = $dbw->selectRow( 'filearchive', '*',
				[ 'fa_storage_group' => 'deleted', 'fa_storage_key' => $filekey ],
				__METHOD__ );
			if ( !$row ) {
				$this->error( "No deleted file exists with key '$filekey'.", 1 );
			}
			$filename = $row->fa_name;
			$afile = ArchivedFile::newFromRow( $row );
		}

		$file = wfLocalFile( $filename );
		if ( $file->exists() ) {
			$this->error( "File '$filename' is still a public file, use the delete form.\n", 1 );
		}

		$this->output( "Purging all thumbnails for file '$filename'..." );
		$file->purgeCache();
		$this->output( "done.\n" );

		if ( $afile instanceof ArchivedFile ) {
			$this->scrubVersion( $afile );
		} else {
			$this->output( "Finding deleted versions of file '$filename'...\n" );
			$this->scrubAllVersions( $filename );
			$this->output( "Done\n" );
		}
	}

	protected function scrubAllVersions( $name ) {
		$dbw = $this->getDB( DB_MASTER );
		$res = $dbw->select( 'filearchive', '*',
			[ 'fa_name' => $name, 'fa_storage_group' => 'deleted' ],
			__METHOD__ );
		foreach ( $res as $row ) {
			$this->scrubVersion( ArchivedFile::newFromRow( $row ) );
		}
	}

	protected function scrubVersion( ArchivedFile $archivedFile ) {
		$key = $archivedFile->getStorageKey();
		$name = $archivedFile->getName();
		$ts = $archivedFile->getTimestamp();
		$repo = RepoGroup::singleton()->getLocalRepo();
		$path = $repo->getZonePath( 'deleted' ) . '/' . $repo->getDeletedHashPath( $key ) . $key;
		if ( $this->hasOption( 'delete' ) ) {
			$status = $repo->getBackend()->delete( [ 'src' => $path ] );
			if ( $status->isOK() ) {
				$this->output( "Deleted version '$key' ($ts) of file '$name'\n" );
			} else {
				$this->output( "Failed to delete version '$key' ($ts) of file '$name'\n" );
				$this->output( print_r( $status->getErrorsArray(), true ) );

The method getErrorsArray() does not exist on StatusValue. Did you maybe mean getErrors()?

			}
		} else {
			$this->output( "Would delete version '{$key}' ({$ts}) of file '$name'\n" );
		}
	}
}

$maintClass = "EraseArchivedFile";
require_once RUN_MAINTENANCE_IF_MAIN;