wikimedia / mediawiki

maintenance/deleteBatch.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 38 and the first side effect is on line 31.

/**
 * Deletes a batch of pages.
 * Usage: php deleteBatch.php [-u <user>] [-r <reason>] [-i <interval>] [listfile]
 * where
 *   [listfile] is a file where each line contains the title of a page to be
 *     deleted, standard input is used if listfile is not given.
 *   <user> is the username
 *   <reason> is the delete reason
 *   <interval> is the number of seconds to sleep for after each delete
 *
 * 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
 */

require_once __DIR__ . '/Maintenance.php';

/**
 * Maintenance script to delete a batch of pages.
 *
 * @ingroup Maintenance
 */
class DeleteBatch extends Maintenance {

	public function __construct() {
		parent::__construct();
		$this->addDescription( 'Deletes a batch of pages' );
		$this->addOption( 'u', "User to perform deletion", false, true );
		$this->addOption( 'r', "Reason to delete page", false, true );
		$this->addOption( 'i', "Interval to sleep between deletions" );
		$this->addArg( 'listfile', 'File with titles to delete, separated by newlines. ' .
			'If not given, stdin will be used.', false );
	}

	public function execute() {
		global $wgUser;

		# Change to current working directory
		$oldCwd = getcwd();
		chdir( $oldCwd );

		# Options processing
		$username = $this->getOption( 'u', false );
		$reason = $this->getOption( 'r', '' );
		$interval = $this->getOption( 'i', 0 );

		if ( $username === false ) {
			$user = User::newSystemUser( 'Delete page script', [ 'steal' => true ] );
		} else {
			$user = User::newFromName( $username );
		}
		if ( !$user ) {
			$this->error( "Invalid username", true );
		}
		$wgUser = $user;

		if ( $this->hasArg() ) {
			$file = fopen( $this->getArg(), 'r' );
		} else {
			$file = $this->getStdin();
		}

		# Setup
		if ( !$file ) {
			$this->error( "Unable to read file, exiting", true );
		}

		$dbw = $this->getDB( DB_MASTER );

$dbw is not used, you could remove the assignment.

		# Handle each entry
		// @codingStandardsIgnoreStart Ignore Generic.CodeAnalysis.ForLoopWithTestFunctionCall.NotAllowed
		for ( $linenum = 1; !feof( $file ); $linenum++ ) {
			// @codingStandardsIgnoreEnd
			$line = trim( fgets( $file ) );
			if ( $line == '' ) {
				continue;
			}
			$title = Title::newFromText( $line );
			if ( is_null( $title ) ) {
				$this->output( "Invalid title '$line' on line $linenum\n" );
				continue;
			}
			if ( !$title->exists() ) {
				$this->output( "Skipping nonexistent page '$line'\n" );
				continue;
			}

			$this->output( $title->getPrefixedText() );
			if ( $title->getNamespace() == NS_FILE ) {
				$img = wfFindFile( $title, [ 'ignoreRedirect' => true ] );
				if ( $img && $img->isLocal() && !$img->delete( $reason ) ) {
					$this->output( " FAILED to delete associated file... " );
				}
			}
			$page = WikiPage::factory( $title );
			$error = '';
			$success = $page->doDeleteArticle( $reason, false, 0, true, $error, $user );

It seems like $user defined by \User::newFromName($username) on line 65 can also be of type false; however, WikiPage::doDeleteArticle() does only seem to accept null|object<User>, did you maybe forget to handle an error condition?

			if ( $success ) {
				$this->output( " Deleted!\n" );
			} else {
				$this->output( " FAILED to delete article\n" );
			}

			if ( $interval ) {
				sleep( $interval );
			}
			wfWaitForSlaves();

The function wfWaitForSlaves() has been deprecated with message: since 1.27 Use LBFactory::waitForReplication

		}
	}
}

$maintClass = "DeleteBatch";
require_once RUN_MAINTENANCE_IF_MAIN;