1 files changed, 41 insertions, 0 deletions
diff --git a/apps/files/src/utils/davUtils.ts b/apps/files/src/utils/davUtils.ts
new file mode 100644
index 00000000000..54c1a6ea966
--- /dev/null
+++ b/apps/files/src/utils/davUtils.ts
@@ -0,0 +1,41 @@
+/**
+ * SPDX-FileCopyrightText: 2019 Nextcloud GmbH and Nextcloud contributors
+ * SPDX-License-Identifier: AGPL-3.0-or-later
+ */
+
+import { t } from '@nextcloud/l10n'
+import type { WebDAVClientError } from 'webdav'
+
+/**
+ * Whether error is a WebDAVClientError
+ * @param error - Any exception
+ * @return {boolean} - Whether error is a WebDAVClientError
+ */
+function isWebDAVClientError(error: unknown): error is WebDAVClientError {
+	return error instanceof Error && 'status' in error && 'response' in error
+}
+
+/**
+ * Get a localized error message from webdav request
+ * @param error - An exception from webdav request
+ * @return {string} Localized error message for end user
+ */
+export function humanizeWebDAVError(error: unknown) {
+	if (error instanceof Error) {
+		if (isWebDAVClientError(error)) {
+			const status = error.status || error.response?.status || 0
+			if ([400, 404, 405].includes(status)) {
+				return t('files', 'Folder not found')
+			} else if (status === 403) {
+				return t('files', 'This operation is forbidden')
+			} else if (status === 500) {
+				return t('files', 'This folder is unavailable, please try again later or contact the administration')
+			} else if (status === 503) {
+				return t('files', 'Storage is temporarily not available')
+			}
+		}
+		return t('files', 'Unexpected error: {error}', { error: error.message })
+	}
+
+	return t('files', 'Unknown error')
+}