From 5851c265a1009e88e4018f44cb1b76fa21e9cbc2 Mon Sep 17 00:00:00 2001
From: szaimen <szaimen@e.mail.de>
Date: Mon, 12 Sep 2022 11:01:38 +0200
Subject: [PATCH] Do not empty config.php file if reading failed for any reason
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Signed-off-by: Côme Chilliet <come.chilliet@nextcloud.com>
Signed-off-by: szaimen <szaimen@e.mail.de>
---
 lib/private/Config.php | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/lib/private/Config.php b/lib/private/Config.php
index 2a83d2300dcd4..a1753c8be3189 100644
--- a/lib/private/Config.php
+++ b/lib/private/Config.php
@@ -239,6 +239,10 @@ private function readData() {
 	 * @throws \Exception If no file lock can be acquired
 	 */
 	private function writeData() {
+		if (!is_file(\OC::$configDir.'/CAN_INSTALL') && !isset($this->cache['version'])) {
+			throw new HintException(sprintf('Configuration was not read or initialized correctly, not overwriting %s', $this->configFilePath));
+		}
+
 		// Create a php file ...
 		$content = "<?php\n";
 		$content .= '$CONFIG = ';