3 files changed, 130 insertions, 0 deletions
diff --git a/lib/private/IntegrityCheck/Helpers/AppLocator.php b/lib/private/IntegrityCheck/Helpers/AppLocator.php
new file mode 100644
index 00000000000..148a3aeda76
--- /dev/null
+++ b/lib/private/IntegrityCheck/Helpers/AppLocator.php
@@ -0,0 +1,33 @@
+<?php
+
+declare(strict_types=1);
+/**
+ * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
+ * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+namespace OC\IntegrityCheck\Helpers;
+
+/**
+ * Class AppLocator provides a non-static helper for OC_App::getPath($appId)
+ * it is not possible to use IAppManager at this point as IAppManager has a
+ * dependency on a running Nextcloud.
+ *
+ * @package OC\IntegrityCheck\Helpers
+ */
+class AppLocator {
+	/**
+	 * Provides \OC_App::getAppPath($appId)
+	 *
+	 * @param string $appId
+	 * @return string
+	 * @throws \Exception If the app cannot be found
+	 */
+	public function getAppPath(string $appId): string {
+		$path = \OC_App::getAppPath($appId);
+		if ($path === false) {
+			throw new \Exception('App not found');
+		}
+		return $path;
+	}
+}
diff --git a/lib/private/IntegrityCheck/Helpers/EnvironmentHelper.php b/lib/private/IntegrityCheck/Helpers/EnvironmentHelper.php
new file mode 100644
index 00000000000..583ae5e534f
--- /dev/null
+++ b/lib/private/IntegrityCheck/Helpers/EnvironmentHelper.php
@@ -0,0 +1,26 @@
+<?php
+
+declare(strict_types=1);
+/**
+ * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
+ * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+namespace OC\IntegrityCheck\Helpers;
+
+/**
+ * Class EnvironmentHelper provides a non-static helper for access to static
+ * variables such as \OC::$SERVERROOT.
+ *
+ * @package OC\IntegrityCheck\Helpers
+ */
+class EnvironmentHelper {
+	/**
+	 * Provides \OC::$SERVERROOT
+	 *
+	 * @return string
+	 */
+	public function getServerRoot(): string {
+		return rtrim(\OC::$SERVERROOT, '/');
+	}
+}
diff --git a/lib/private/IntegrityCheck/Helpers/FileAccessHelper.php b/lib/private/IntegrityCheck/Helpers/FileAccessHelper.php
new file mode 100644
index 00000000000..c6e57d5d935
--- /dev/null
+++ b/lib/private/IntegrityCheck/Helpers/FileAccessHelper.php
@@ -0,0 +1,71 @@
+<?php
+
+declare(strict_types=1);
+/**
+ * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
+ * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+namespace OC\IntegrityCheck\Helpers;
+
+/**
+ * Class FileAccessHelper provides a helper around file_get_contents and
+ * file_put_contents
+ *
+ * @package OC\IntegrityCheck\Helpers
+ */
+class FileAccessHelper {
+	/**
+	 * Wrapper around file_get_contents($filename, $data)
+	 *
+	 * @param string $filename
+	 * @return string|false
+	 */
+	public function file_get_contents(string $filename) {
+		return file_get_contents($filename);
+	}
+
+	/**
+	 * Wrapper around file_exists($filename)
+	 *
+	 * @param string $filename
+	 * @return bool
+	 */
+	public function file_exists(string $filename): bool {
+		return file_exists($filename);
+	}
+
+	/**
+	 * Wrapper around file_put_contents($filename, $data)
+	 *
+	 * @param string $filename
+	 * @param string $data
+	 * @return int
+	 * @throws \Exception
+	 */
+	public function file_put_contents(string $filename, string $data): int {
+		$bytesWritten = @file_put_contents($filename, $data);
+		if ($bytesWritten === false || $bytesWritten !== \strlen($data)) {
+			throw new \Exception('Failed to write into ' . $filename);
+		}
+		return $bytesWritten;
+	}
+
+	/**
+	 * @param string $path
+	 * @return bool
+	 */
+	public function is_writable(string $path): bool {
+		return is_writable($path);
+	}
+
+	/**
+	 * @param string $path
+	 * @throws \Exception
+	 */
+	public function assertDirectoryExists(string $path) {
+		if (!is_dir($path)) {
+			throw new \Exception('Directory ' . $path . ' does not exist.');
+		}
+	}
+}