Merge pull request #39253 from nextcloud/backport/38046/stable25

[stable25] fix(dav): Abort requests with 429 instead of waiting

1 files changed, 55 insertions, 0 deletions

diff --git a/apps/dav/lib/Connector/Sabre/Exception/TooManyRequests.php b/apps/dav/lib/Connector/Sabre/Exception/TooManyRequests.php
new file mode 100644
index 00000000000..1110797aed4
--- /dev/null
+++ b/apps/dav/lib/Connector/Sabre/Exception/TooManyRequests.php
@@ -0,0 +1,55 @@
+<?php
+
+declare(strict_types=1);
+/**
+ * @copyright Copyright (c) 2023 Joas Schilling <coding@schilljs.com>
+ *
+ * @author Joas Schilling <coding@schilljs.com>
+ *
+ * @license GNU AGPL version 3 or any later version
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+namespace OCA\DAV\Connector\Sabre\Exception;
+
+use DOMElement;
+use Sabre\DAV\Exception\NotAuthenticated;
+use Sabre\DAV\Server;
+
+class TooManyRequests extends NotAuthenticated {
+	public const NS_OWNCLOUD = 'http://owncloud.org/ns';
+
+	public function getHTTPCode() {
+		return 429;
+	}
+
+	/**
+	 * This method allows the exception to include additional information
+	 * into the WebDAV error response
+	 *
+	 * @param Server $server
+	 * @param DOMElement $errorNode
+	 * @return void
+	 */
+	public function serialize(Server $server, DOMElement $errorNode) {
+
+		// set ownCloud namespace
+		$errorNode->setAttribute('xmlns:o', self::NS_OWNCLOUD);
+
+		$error = $errorNode->ownerDocument->createElementNS('o:', 'o:hint', 'too many requests');
+		$errorNode->appendChild($error);
+	}
+}