From 4dcfb0e9f460ac9e11fc8a4040ac308d951ef84a Mon Sep 17 00:00:00 2001
From: beu <benoit@virtit.fr>
Date: Wed, 27 Apr 2022 00:19:41 +0200
Subject: [PATCH] prevent to delete unused settings of other servers

---
 core/Settings/SettingManager.php | 19 +++++++++++++++----
 1 file changed, 15 insertions(+), 4 deletions(-)

diff --git a/core/Settings/SettingManager.php b/core/Settings/SettingManager.php
index 2673afb2..8e93f2a0 100644
--- a/core/Settings/SettingManager.php
+++ b/core/Settings/SettingManager.php
@@ -129,13 +129,24 @@ class SettingManager implements CallbackListener, UsageInformationAble {
 	 */
 	private function deleteUnusedSettings() {
 		$mysqli       = $this->maniaControl->getDatabase()->getMysqli();
-		$settingQuery = "DELETE FROM `" . self::TABLE_SETTINGS . "`
-				WHERE `changed` < NOW() - INTERVAL 1 HOUR;";
-		$result       = $mysqli->query($settingQuery);
+		$settingStatement = $mysqli->prepare("DELETE FROM `" . self::TABLE_SETTINGS . "`
+				WHERE ((`linked` = 1 AND `serverIndex` = ?) OR `linked` = 0) AND `changed` < NOW() - INTERVAL 1 HOUR;");
 		if ($mysqli->error) {
 			trigger_error($mysqli->error);
-			return false;
+			return null;
 		}
+
+		$serverInfo      = $this->maniaControl->getServer();
+		if ($serverInfo === null) {
+			return;
+		} else {
+			$serverIndex = $serverInfo->index;
+		}
+		$settingStatement->bind_param('i', $serverIndex);
+		if (!$settingStatement->execute()) {
+			trigger_error('Error executing MySQL query: ' . $settingStatement->error);
+		}
+		$result = $settingStatement->get_result();
 		if ($result) {
 			$this->clearStorage();
 			return true;