1 files changed, 77 insertions, 0 deletions
diff --git a/apps/encryption/lib/Command/RecoverUser.php b/apps/encryption/lib/Command/RecoverUser.php
new file mode 100644
index 00000000000..8da962ac8b1
--- /dev/null
+++ b/apps/encryption/lib/Command/RecoverUser.php
@@ -0,0 +1,77 @@
+<?php
+
+/**
+ * SPDX-FileCopyrightText: 2018 Nextcloud GmbH and Nextcloud contributors
+ * SPDX-License-Identifier: AGPL-3.0-or-later
+ */
+namespace OCA\Encryption\Command;
+
+use OCA\Encryption\Util;
+use OCP\IConfig;
+use OCP\IUserManager;
+use Symfony\Component\Console\Command\Command;
+use Symfony\Component\Console\Helper\QuestionHelper;
+use Symfony\Component\Console\Input\InputArgument;
+use Symfony\Component\Console\Input\InputInterface;
+use Symfony\Component\Console\Output\OutputInterface;
+use Symfony\Component\Console\Question\Question;
+
+class RecoverUser extends Command {
+	public function __construct(
+		protected Util $util,
+		IConfig $config,
+		protected IUserManager $userManager,
+		protected QuestionHelper $questionHelper,
+	) {
+		parent::__construct();
+	}
+
+	protected function configure(): void {
+		$this
+			->setName('encryption:recover-user')
+			->setDescription('Recover user data in case of password lost. This only works if the user enabled the recovery key.');
+
+		$this->addArgument(
+			'user',
+			InputArgument::REQUIRED,
+			'user which should be recovered'
+		);
+	}
+
+	protected function execute(InputInterface $input, OutputInterface $output): int {
+		$isMasterKeyEnabled = $this->util->isMasterKeyEnabled();
+
+		if ($isMasterKeyEnabled) {
+			$output->writeln('You use the master key, no individual user recovery needed.');
+			return self::SUCCESS;
+		}
+
+		$uid = $input->getArgument('user');
+		$userExists = $this->userManager->userExists($uid);
+		if ($userExists === false) {
+			$output->writeln('User "' . $uid . '" unknown.');
+			return self::FAILURE;
+		}
+
+		$recoveryKeyEnabled = $this->util->isRecoveryEnabledForUser($uid);
+		if ($recoveryKeyEnabled === false) {
+			$output->writeln('Recovery key is not enabled for: ' . $uid);
+			return self::FAILURE;
+		}
+
+		$question = new Question('Please enter the recovery key password: ');
+		$question->setHidden(true);
+		$question->setHiddenFallback(false);
+		$recoveryPassword = $this->questionHelper->ask($input, $output, $question);
+
+		$question = new Question('Please enter the new login password for the user: ');
+		$question->setHidden(true);
+		$question->setHiddenFallback(false);
+		$newLoginPassword = $this->questionHelper->ask($input, $output, $question);
+
+		$output->write('Start to recover users files... This can take some time...');
+		$this->userManager->get($uid)->setPassword($newLoginPassword, $recoveryPassword);
+		$output->writeln('Done.');
+		return self::SUCCESS;
+	}
+}