wikimedia / mediawiki

maintenance/wrapOldPasswords.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 32 and the first side effect is on line 23.

/**
 * Maintenance script to wrap all old-style passwords in a layered type
 *
 * 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 wrap all passwords of a certain type in a specified layered
 * type that wraps around the old type.
 *
 * @since 1.24
 * @ingroup Maintenance
 */
class WrapOldPasswords extends Maintenance {
	public function __construct() {
		parent::__construct();
		$this->addDescription( 'Wrap all passwords of a certain type in a new layered type' );
		$this->addOption( 'type',
			'Password type to wrap passwords in (must inherit LayeredParameterizedPassword)', true, true );
		$this->addOption( 'verbose', 'Enables verbose output', false, false, 'v' );
		$this->setBatchSize( 100 );
	}

	public function execute() {
		global $wgAuth;

		if ( !$wgAuth->allowSetLocalPassword() ) {
			$this->error( '$wgAuth does not allow local passwords. Aborting.', true );
		}

		$passwordFactory = new PasswordFactory();
		$passwordFactory->init( RequestContext::getMain()->getConfig() );

		$typeInfo = $passwordFactory->getTypes();
		$layeredType = $this->getOption( 'type' );

		// Check that type exists and is a layered type
		if ( !isset( $typeInfo[$layeredType] ) ) {
			$this->error( 'Undefined password type', true );
		}

		$passObj = $passwordFactory->newFromType( $layeredType );
		if ( !$passObj instanceof LayeredParameterizedPassword ) {
			$this->error( 'Layered parameterized password type must be used.', true );
		}

		// Extract the first layer type
		$typeConfig = $typeInfo[$layeredType];
		$firstType = $typeConfig['types'][0];

		// Get a list of password types that are applicable
		$dbw = $this->getDB( DB_MASTER );
		$typeCond = 'user_password' . $dbw->buildLike( ":$firstType:", $dbw->anyString() );

		$minUserId = 0;
		do {
			$this->beginTransaction( $dbw, __METHOD__ );

			$res = $dbw->select( 'user',
				[ 'user_id', 'user_name', 'user_password' ],
				[
					'user_id > ' . $dbw->addQuotes( $minUserId ),
					$typeCond
				],
				__METHOD__,
				[
					'ORDER BY' => 'user_id',
					'LIMIT' => $this->mBatchSize,
					'LOCK IN SHARE MODE',
				]
			);

			/** @var User[] $updateUsers */
			$updateUsers = [];
			foreach ( $res as $row ) {
				if ( $this->hasOption( 'verbose' ) ) {
					$this->output( "Updating password for user {$row->user_name} ({$row->user_id}).\n" );
				}

				$user = User::newFromId( $row->user_id );
				/** @var ParameterizedPassword $password */
				$password = $passwordFactory->newFromCiphertext( $row->user_password );
				/** @var LayeredParameterizedPassword $layeredPassword */
				$layeredPassword = $passwordFactory->newFromType( $layeredType );
				$layeredPassword->partialCrypt( $password );

				$updateUsers[] = $user;
				$dbw->update( 'user',
					[ 'user_password' => $layeredPassword->toString() ],
					[ 'user_id' => $row->user_id ],
					__METHOD__
				);

				$minUserId = $row->user_id;
			}

			$this->commitTransaction( $dbw, __METHOD__ );

			// Clear memcached so old passwords are wiped out
			foreach ( $updateUsers as $user ) {
				$user->clearSharedCache();
			}
		} while ( $res->numRows() );
	}
}

$maintClass = "WrapOldPasswords";
require_once RUN_MAINTENANCE_IF_MAIN;