1 files changed, 97 insertions, 0 deletions
diff --git a/core/Command/Integrity/CheckApp.php b/core/Command/Integrity/CheckApp.php
new file mode 100644
index 00000000000..0145a3f8070
--- /dev/null
+++ b/core/Command/Integrity/CheckApp.php
@@ -0,0 +1,97 @@
+<?php
+
+/**
+ * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
+ * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+namespace OC\Core\Command\Integrity;
+
+use OC\Core\Command\Base;
+use OC\IntegrityCheck\Checker;
+use OC\IntegrityCheck\Helpers\AppLocator;
+use OC\IntegrityCheck\Helpers\FileAccessHelper;
+use OCP\App\IAppManager;
+use Symfony\Component\Console\Input\InputArgument;
+use Symfony\Component\Console\Input\InputInterface;
+use Symfony\Component\Console\Input\InputOption;
+use Symfony\Component\Console\Output\OutputInterface;
+
+/**
+ * Class CheckApp
+ *
+ * @package OC\Core\Command\Integrity
+ */
+class CheckApp extends Base {
+	public function __construct(
+		private Checker $checker,
+		private AppLocator $appLocator,
+		private FileAccessHelper $fileAccessHelper,
+		private IAppManager $appManager,
+	) {
+		parent::__construct();
+	}
+
+	/**
+	 * {@inheritdoc }
+	 */
+	protected function configure() {
+		parent::configure();
+		$this
+			->setName('integrity:check-app')
+			->setDescription('Check integrity of an app using a signature.')
+			->addArgument('appid', InputArgument::OPTIONAL, 'Application to check')
+			->addOption('path', null, InputOption::VALUE_OPTIONAL, 'Path to application. If none is given it will be guessed.')
+			->addOption('all', null, InputOption::VALUE_NONE, 'Check integrity of all apps.');
+	}
+
+	/**
+	 * {@inheritdoc }
+	 */
+	protected function execute(InputInterface $input, OutputInterface $output): int {
+		if ($input->getOption('all') && $input->getArgument('appid')) {
+			$output->writeln('<error>Option "--all" cannot be combined with an appid</error>');
+			return 1;
+		}
+
+		if (!$input->getArgument('appid') && !$input->getOption('all')) {
+			$output->writeln('<error>Please specify an appid, or "--all" to verify all apps</error>');
+			return 1;
+		}
+
+		if ($input->getArgument('appid')) {
+			$appIds = [$input->getArgument('appid')];
+		} else {
+			$appIds = $this->appManager->getAllAppsInAppsFolders();
+		}
+
+		$errorsFound = false;
+
+		foreach ($appIds as $appId) {
+			$path = (string)$input->getOption('path');
+			if ($path === '') {
+				$path = $this->appLocator->getAppPath($appId);
+			}
+
+			if ($this->appManager->isShipped($appId) || $this->fileAccessHelper->file_exists($path . '/appinfo/signature.json')) {
+				// Only verify if the application explicitly ships a signature.json file
+				$result = $this->checker->verifyAppSignature($appId, $path, true);
+
+				if (count($result) > 0) {
+					$output->writeln('<error>' . $appId . ': ' . count($result) . ' errors found:</error>');
+					$this->writeArrayInOutputFormat($input, $output, $result);
+					$errorsFound = true;
+				}
+			} else {
+				$output->writeln('<comment>' . $appId . ': ' . 'App signature not found, skipping app integrity check</comment>');
+			}
+		}
+
+		if (!$errorsFound) {
+			$output->writeln('<info>No errors found</info>', OutputInterface::VERBOSITY_VERBOSE);
+			return 0;
+		}
+
+		return 1;
+	}
+}