1 files changed, 54 insertions, 0 deletions
diff --git a/apps/files_external/lib/Lib/LegacyDependencyCheckPolyfill.php b/apps/files_external/lib/Lib/LegacyDependencyCheckPolyfill.php
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index 00000000000..f6311fae83e
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+++ b/apps/files_external/lib/Lib/LegacyDependencyCheckPolyfill.php
@@ -0,0 +1,54 @@
+<?php
+
+/**
+ * SPDX-FileCopyrightText: 2018-2024 Nextcloud GmbH and Nextcloud contributors
+ * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+namespace OCA\Files_External\Lib;
+
+use OCP\Files\Storage\IStorage;
+
+/**
+ * Polyfill for checking dependencies using legacy Storage::checkDependencies()
+ */
+trait LegacyDependencyCheckPolyfill {
+
+	/**
+	 * @return class-string<IStorage>
+	 */
+	abstract public function getStorageClass();
+
+	/**
+	 * Check if object is valid for use
+	 *
+	 * @return MissingDependency[] Unsatisfied dependencies
+	 */
+	public function checkDependencies() {
+		$ret = [];
+
+		$result = call_user_func([$this->getStorageClass(), 'checkDependencies']);
+		if ($result !== true) {
+			if (!is_array($result)) {
+				$result = [$result];
+			}
+			foreach ($result as $key => $value) {
+				if (!($value instanceof MissingDependency)) {
+					$module = null;
+					$message = null;
+					if (is_numeric($key)) {
+						$module = $value;
+					} else {
+						$module = $key;
+						$message = $value;
+					}
+					$value = new MissingDependency($module);
+					$value->setMessage($message);
+				}
+				$ret[] = $value;
+			}
+		}
+
+		return $ret;
+	}
+}