invalidateUserSessions.php

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<?php
use MediaWiki\MediaWikiServices;
use MediaWiki\Session\SessionManager;

require_once __DIR__ . '/Maintenance.php';

class InvalidateUserSesssions extends Maintenance {
    public function __construct() {
        parent::__construct();
        $this->addDescription(
            'Invalidate the sessions of certain users on the wiki.'
        );
        $this->addOption( 'user', 'Username', false, true, 'u' );
        $this->addOption( 'file', 'File with one username per line', false, true, 'f' );
        $this->setBatchSize( 1000 );
    }

    public function execute() {
        $username = $this->getOption( 'user' );
        $file = $this->getOption( 'file' );

        if ( $username === null && $file === null ) {
            $this->fatalError( 'Either --user or --file is required' );
        } elseif ( $username !== null && $file !== null ) {
            $this->fatalError( 'Cannot use both --user and --file' );
        }

        if ( $username !== null ) {
            $usernames = [ $username ];
        } else {
            $usernames = is_readable( $file ) ?
                file( $file, FILE_IGNORE_NEW_LINES | FILE_SKIP_EMPTY_LINES ) : false;
            if ( $usernames === false ) {
                $this->fatalError( "Could not open $file", 2 );
            }
        }

        $i = 0;
        $lbFactory = MediaWikiServices::getInstance()->getDBLoadBalancerFactory();
        $sessionManager = SessionManager::singleton();
        foreach ( $usernames as $username ) {
            $i++;
            $user = User::newFromName( $username );
            try {
                $sessionManager->invalidateSessionsForUser( $user );
                if ( $user->getId() ) {
                    $this->output( "Invalidated sessions for user $username\n" );
                } else {
                    # session invalidation might still work if there is a central identity provider
                    $this->output( "Could not find user $username, tried to invalidate anyway\n" );
                }
            } catch ( Exception $e ) {
                $this->output( "Failed to invalidate sessions for user $username | "
                    . str_replace( [ "\r", "\n" ], ' ', $e->getMessage() ) . "\n" );
            }

            if ( $i % $this->getBatchSize() ) {
                $lbFactory->waitForReplication();
            }
        }
    }
}

$maintClass = InvalidateUserSesssions::class;
require_once RUN_MAINTENANCE_IF_MAIN;