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<?php
use MediaWiki\Maintenance\Maintenance;
use MediaWiki\RenameUser\RenameUserFactory;
use MediaWiki\Title\TitleFactory;
use MediaWiki\User\TempUser\Pattern;
use MediaWiki\User\User;
use MediaWiki\User\UserFactory;
use Wikimedia\Rdbms\IExpression;
// @codeCoverageIgnoreStart
require_once __DIR__ . '/Maintenance.php';
// @codeCoverageIgnoreEnd
class RenameUsersMatchingPattern extends Maintenance {
/** @var UserFactory */
private $userFactory;
/** @var RenameUserFactory */
private $renameUserFactory;
/** @var TitleFactory */
private $titleFactory;
/** @var User */
private $performer;
/** @var string */
private $reason;
/** @var bool */
private $dryRun;
/** @var bool */
private $suppressRedirect;
/** @var bool */
private $skipPageMoves;
public function __construct() {
parent::__construct();
$this->addDescription( 'Rename users with a name matching a pattern. ' .
'This can be used to migrate to a temporary user (IP masking) configuration.' );
$this->addOption( 'from', 'A username pattern where $1 is ' .
'the wildcard standing in for any number of characters. All users ' .
'matching this pattern will be renamed.', true, true );
$this->addOption( 'to', 'A username pattern where $1 is ' .
'the part of the username matched by $1 in --from. Users will be ' .
' renamed to this pattern.', true, true );
$this->addOption( 'performer', 'Performer of the rename action', false, true );
$this->addOption( 'reason', 'Reason of the rename', false, true );
$this->addOption( 'suppress-redirect', 'Don\'t create redirects when moving pages' );
$this->addOption( 'skip-page-moves', 'Don\'t move associated user pages' );
$this->addOption( 'dry-run', 'Don\'t actually rename the ' .
'users, just report what it would do.' );
$this->setBatchSize( 1000 );
}
private function initServices() {
$services = $this->getServiceContainer();
if ( $services->getCentralIdLookupFactory()->getNonLocalLookup() ) {
$this->fatalError( "This script cannot be run when CentralAuth is enabled." );
}
$this->userFactory = $services->getUserFactory();
$this->renameUserFactory = $services->getRenameUserFactory();
$this->titleFactory = $services->getTitleFactory();
}
/** @inheritDoc */
public function execute() {
$this->initServices();
$fromPattern = new Pattern( 'from', $this->getOption( 'from' ) );
$toPattern = new Pattern( 'to', $this->getOption( 'to' ) );
if ( $this->getOption( 'performer' ) === null ) {
$performer = User::newSystemUser( User::MAINTENANCE_SCRIPT_USER, [ 'steal' => true ] );
} else {
$performer = $this->userFactory->newFromName( $this->getOption( 'performer' ) );
}
if ( !$performer ) {
$this->fatalError( "Unable to get performer account" );
}
$this->performer = $performer;
$this->reason = $this->getOption( 'reason', '' );
$this->dryRun = $this->getOption( 'dry-run' );
$this->suppressRedirect = $this->getOption( 'suppress-redirect' );
$this->skipPageMoves = $this->getOption( 'skip-page-moves' );
$dbr = $this->getReplicaDB();
$batchConds = [];
$batchSize = $this->getBatchSize();
$numRenamed = 0;
do {
$res = $dbr->newSelectQueryBuilder()
->select( [ 'user_name' ] )
->from( 'user' )
->where( $dbr->expr( 'user_name', IExpression::LIKE, $fromPattern->toLikeValue( $dbr ) ) )
->andWhere( $batchConds )
->orderBy( 'user_name' )
->limit( $batchSize )
->caller( __METHOD__ )
->fetchResultSet();
foreach ( $res as $row ) {
$oldName = $row->user_name;
$batchConds = [ $dbr->expr( 'user_name', '>', $oldName ) ];
$variablePart = $fromPattern->extract( $oldName );
if ( $variablePart === null ) {
$this->output( "Username \"fromName\" matched the LIKE " .
"but does not seem to match the pattern" );
continue;
}
$newName = $toPattern->generate( $variablePart );
// Canonicalize
$newTitle = $this->titleFactory->makeTitleSafe( NS_USER, $newName );
$newUser = $this->userFactory->newFromName( $newName );
if ( !$newTitle || !$newUser ) {
$this->output( "Cannot rename \"$oldName\" " .
"because \"$newName\" is not a valid title\n" );
continue;
}
$newName = $newTitle->getText();
// Check destination existence
if ( $newUser->isRegistered() ) {
$this->output( "Cannot rename \"$oldName\" " .
"because \"$newName\" already exists\n" );
continue;
}
$numRenamed += $this->renameUser( $oldName, $newName ) ? 1 : 0;
$this->waitForReplication();
}
} while ( $res->numRows() === $batchSize );
$this->output( "Renamed $numRenamed user(s)\n" );
return true;
}
/**
* @param string $oldName
* @param string $newName
* @return bool True if the user was renamed
*/
private function renameUser( $oldName, $newName ) {
$oldUser = $this->userFactory->newFromName( $oldName );
if ( !$oldUser ) {
$this->output( "Invalid user name \"$oldName\"" );
return false;
}
$id = $oldUser->getId();
if ( !$id ) {
$this->output( "Cannot rename non-existent user \"$oldName\"" );
return false;
}
if ( $this->dryRun ) {
$this->output( "$oldName would be renamed to $newName\n" );
} else {
$rename = $this->renameUserFactory->newRenameUser( $this->performer, $oldUser, $newName, $this->reason, [
'forceGlobalDetach' => $this->getOption( 'force-global-detach' ),
'movePages' => !$this->getOption( 'skip-page-moves' ),
'suppressRedirect' => $this->getOption( 'suppress-redirect' ),
] );
$status = $rename->renameGlobal();
if ( $status->isGood() ) {
$this->output( "$oldName was successfully renamed to $newName.\n" );
} else {
if ( $status->isOK() ) {
$this->output( "$oldName was renamed to $newName.\n" );
} else {
$this->output( "Unable to rename $oldName.\n" );
}
foreach ( $status->getMessages() as $msg ) {
$this->output( ' - ' . wfMessage( $msg )->text() );
}
}
}
return true;
}
}
// @codeCoverageIgnoreStart
$maintClass = RenameUsersMatchingPattern::class;
require_once RUN_MAINTENANCE_IF_MAIN;
// @codeCoverageIgnoreEnd