1 files changed, 37 insertions, 0 deletions
diff --git a/apps/dav/lib/Connector/Sabre/CachingTree.php b/apps/dav/lib/Connector/Sabre/CachingTree.php
new file mode 100644
index 00000000000..5d72b530f58
--- /dev/null
+++ b/apps/dav/lib/Connector/Sabre/CachingTree.php
@@ -0,0 +1,37 @@
+<?php
+
+/**
+ * SPDX-FileCopyrightText: 2017 Nextcloud GmbH and Nextcloud contributors
+ * SPDX-License-Identifier: AGPL-3.0-or-later
+ */
+namespace OCA\DAV\Connector\Sabre;
+
+use Sabre\DAV\Tree;
+
+class CachingTree extends Tree {
+	/**
+	 * Store a node in the cache
+	 */
+	public function cacheNode(Node $node, ?string $path = null): void {
+		if (is_null($path)) {
+			$path = $node->getPath();
+		}
+		$this->cache[trim($path, '/')] = $node;
+	}
+
+	/**
+	 * @param string $path
+	 * @return void
+	 */
+	public function markDirty($path) {
+		// We don't care enough about sub-paths
+		// flushing the entire cache
+		$path = trim($path, '/');
+		foreach ($this->cache as $nodePath => $node) {
+			$nodePath = (string)$nodePath;
+			if ($path === '' || $nodePath == $path || str_starts_with($nodePath, $path . '/')) {
+				unset($this->cache[$nodePath]);
+			}
+		}
+	}
+}