1 files changed, 46 insertions, 0 deletions
diff --git a/lib/private/User/FailedUsersBackend.php b/lib/private/User/FailedUsersBackend.php
new file mode 100644
index 00000000000..934ceea17da
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+++ b/lib/private/User/FailedUsersBackend.php
@@ -0,0 +1,46 @@
+<?php
+
+/**
+ * SPDX-FileCopyrightText: 2024 Nextcloud GmbH and Nextcloud contributors
+ * SPDX-License-Identifier: AGPL-3.0-or-later
+ */
+namespace OC\User;
+
+use OCP\IConfig;
+use OCP\IUserBackend;
+use OCP\User\Backend\IGetHomeBackend;
+
+/**
+ * This is a "fake" backend for users that were deleted,
+ * but not properly removed from Nextcloud (e.g. an exception occurred).
+ * This backend is only needed because some APIs in user-deleted-events require a "real" user with backend.
+ */
+class FailedUsersBackend extends Backend implements IGetHomeBackend, IUserBackend {
+
+	public function __construct(
+		private IConfig $config,
+	) {
+	}
+
+	public function deleteUser($uid): bool {
+		// fake true, deleting failed users is automatically handled by User::delete()
+		return true;
+	}
+
+	public function getBackendName(): string {
+		return 'deleted users';
+	}
+
+	public function userExists($uid) {
+		return $this->config->getUserValue($uid, 'core', 'deleted') === 'true';
+	}
+
+	public function getHome(string $uid): string|false {
+		return $this->config->getUserValue($uid, 'core', 'deleted.backup-home') ?: false;
+	}
+
+	public function getUsers($search = '', $limit = null, $offset = null) {
+		return $this->config->getUsersForUserValue('core', 'deleted', 'true');
+	}
+
+}