fix: add proper ACLs for trashbin proxys

Signed-off-by: Hamza <hamzamahjoubi221@gmail.com>

Author: hamza221

apps/dav/lib/CalDAV/Trashbin/TrashbinHome.php

@@ -37,6 +37,34 @@ public function getOwner(): string {
 		return $this->principalInfo['uri'];
 	}
 
+	/**
+	 * Grant calendar-proxy delegates read access to the trashbin so a delegate's
+	 * PROPFIND on the owner's calendar home does not 404 when this collection is
+	 * enumerated. Without this, DavAclPlugin maps "no access" to NotFound and
+	 * aborts the whole PROPFIND.
+	 */
+	#[\Override]
+	public function getACL(): array {
+		$ownerPrincipal = $this->principalInfo['uri'];
+		return [
+			[
+				'privilege' => '{DAV:}all',
+				'principal' => $ownerPrincipal,
+				'protected' => true,
+			],
+			[
+				'privilege' => '{DAV:}read',
+				'principal' => $ownerPrincipal . '/calendar-proxy-write',
+				'protected' => true,
+			],
+			[
+				'privilege' => '{DAV:}read',
+				'principal' => $ownerPrincipal . '/calendar-proxy-read',
+				'protected' => true,
+			],
+		];
+	}
+
 	#[\Override]
 	public function createFile($name, $data = null) {
 		throw new Forbidden('Permission denied to create files in the trashbin');