setDescription('Lock backend'); $this->setHelp('Deny backend access for every user (including admins).'); $this->setDefinition( [ new InputOption( 'redirect-url', null, InputOption::VALUE_REQUIRED, 'URL to redirect to when the backend is accessed' ), ] ); } protected function execute(InputInterface $input, OutputInterface $output): int { $redirectUrl = $input->getOption('redirect-url'); $fileName = Environment::getLegacyConfigPath() . '/LOCK_BACKEND'; if (@is_file($fileName)) { $output->writeln('Backend is already locked.'); return 0; } GeneralUtility::writeFile($fileName, (string)$redirectUrl); if (!@is_file($fileName)) { $output->writeln('Could not create lock file \'typo3conf/LOCK_BACKEND\'.'); return 2; } $output->writeln('Backend has been locked. Access is denied for every user until it is unlocked again.'); if ($redirectUrl !== null) { $output->writeln('Any access to the backend will be redirected to: \'' . $redirectUrl . '\''); } return 0; } }