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<?php
/**
* Reassign edits from a user or IP address to another user
*
* 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 Rob Church <robchur@gmail.com>
* @license GPL-2.0-or-later
*/
use MediaWiki\Maintenance\Maintenance;
use MediaWiki\User\User;
use Wikimedia\IPUtils;
// @codeCoverageIgnoreStart
require_once __DIR__ . '/Maintenance.php';
// @codeCoverageIgnoreEnd
/**
* Maintenance script that reassigns edits from a user or IP address
* to another user.
*
* @ingroup Maintenance
*/
class ReassignEdits extends Maintenance {
public function __construct() {
parent::__construct();
$this->addDescription( 'Reassign edits from one user to another' );
$this->addOption( "force", "Reassign even if the target user doesn't exist" );
$this->addOption( "norc", "Don't update the recent changes table" );
$this->addOption( "report", "Print out details of what would be changed, but don't update it" );
$this->addArg( 'from', 'Old user to take edits from' );
$this->addArg( 'to', 'New user to give edits to' );
}
public function execute() {
# Set up the users involved
$from = $this->initialiseUser( $this->getArg( 0 ) );
$to = $this->initialiseUser( $this->getArg( 1 ) );
// Reject attempts to re-assign to an IP address. This is done because the script does not
// populate ip_changes and it breaks if temporary accounts are enabled (T373914).
if ( IPUtils::isIPAddress( $to->getName() ) ) {
$this->fatalError( 'Script does not support re-assigning to another IP.' );
} elseif ( $from->equals( $to ) ) {
$this->fatalError( 'The from and to user cannot be the same.' );
}
# If the target doesn't exist, and --force is not set, stop here
if ( $to->getId() || $this->hasOption( 'force' ) ) {
# Reassign the edits
$report = $this->hasOption( 'report' );
$this->doReassignEdits( $from, $to, !$this->hasOption( 'norc' ), $report );
# If reporting, and there were items, advise the user to run without --report
if ( $report ) {
$this->output( "Run the script again without --report to update.\n" );
}
} else {
$this->fatalError( "User '{$to->getName()}' not found." );
}
}
/**
* Reassign edits from one user to another
*
* @param User &$from User to take edits from
* @param User &$to User to assign edits to
* @param bool $updateRC Update the recent changes table
* @param bool $report Don't change things; just echo numbers
* @return int The number of entries changed, or that would be changed
*/
private function doReassignEdits( &$from, &$to, $updateRC = false, $report = false ) {
$dbw = $this->getPrimaryDB();
$this->beginTransaction( $dbw, __METHOD__ );
$actorNormalization = $this->getServiceContainer()->getActorNormalization();
$fromActorId = $actorNormalization->findActorId( $from, $dbw );
# Count things
$this->output( "Checking current edits..." );
$revisionRows = $dbw->newSelectQueryBuilder()
->select( '*' )
->from( 'revision' )
->where( [ 'rev_actor' => $fromActorId ] )
->caller( __METHOD__ )
->fetchRowCount();
$this->output( "found {$revisionRows}.\n" );
$this->output( "Checking deleted edits..." );
$archiveRows = $dbw->newSelectQueryBuilder()
->select( '*' )
->from( 'archive' )
->where( [ 'ar_actor' => $fromActorId ] )
->caller( __METHOD__ )->fetchRowCount();
$this->output( "found {$archiveRows}.\n" );
# Don't count recent changes if we're not supposed to
if ( $updateRC ) {
$this->output( "Checking recent changes..." );
$recentChangesRows = $dbw->newSelectQueryBuilder()
->select( '*' )
->from( 'recentchanges' )
->where( [ 'rc_actor' => $fromActorId ] )
->caller( __METHOD__ )->fetchRowCount();
$this->output( "found {$recentChangesRows}.\n" );
} else {
$recentChangesRows = 0;
}
$total = $revisionRows + $archiveRows + $recentChangesRows;
$this->output( "\nTotal entries to change: {$total}\n" );
$toActorId = $actorNormalization->acquireActorId( $to, $dbw );
if ( !$report && $total ) {
$this->output( "\n" );
if ( $revisionRows ) {
# Reassign edits
$this->output( "Reassigning current edits..." );
$dbw->newUpdateQueryBuilder()
->update( 'revision' )
->set( [ 'rev_actor' => $toActorId ] )
->where( [ 'rev_actor' => $fromActorId ] )
->caller( __METHOD__ )->execute();
$this->output( "done.\n" );
}
if ( $archiveRows ) {
$this->output( "Reassigning deleted edits..." );
$dbw->newUpdateQueryBuilder()
->update( 'archive' )
->set( [ 'ar_actor' => $toActorId ] )
->where( [ 'ar_actor' => $fromActorId ] )
->caller( __METHOD__ )->execute();
$this->output( "done.\n" );
}
# Update recent changes if required
if ( $recentChangesRows ) {
$this->output( "Updating recent changes..." );
$dbw->newUpdateQueryBuilder()
->update( 'recentchanges' )
->set( [ 'rc_actor' => $toActorId ] )
->where( [ 'rc_actor' => $fromActorId ] )
->caller( __METHOD__ )->execute();
$this->output( "done.\n" );
}
# If $from is an IP, delete any relevant rows from the
# ip_changes. No update needed, as $to cannot be an IP.
if ( !$from->isRegistered() ) {
$this->output( "Deleting ip_changes..." );
$dbw->newDeleteQueryBuilder()
->deleteFrom( 'ip_changes' )
->where( [ 'ipc_hex' => IPUtils::toHex( $from->getName() ) ] )
->caller( __METHOD__ )->execute();
$this->output( "done.\n" );
}
}
$this->commitTransaction( $dbw, __METHOD__ );
return $total;
}
/**
* Initialise the user object
*
* @param string $username Username or IP address
* @return User
*/
private function initialiseUser( $username ) {
$services = $this->getServiceContainer();
if ( $services->getUserNameUtils()->isIP( $username ) ) {
$user = User::newFromName( $username, false );
$user->getActorId();
} else {
$user = User::newFromName( $username );
if ( !$user ) {
$this->fatalError( "Invalid username" );
}
}
$user->load();
return $user;
}
}
// @codeCoverageIgnoreStart
$maintClass = ReassignEdits::class;
require_once RUN_MAINTENANCE_IF_MAIN;
// @codeCoverageIgnoreEnd