From 89972b872782698c48d9c919c5766240f0a81d41 Mon Sep 17 00:00:00 2001
From: Lauris Kaplinski <lauris@raulwalter.com>
Date: Thu, 21 May 2026 13:56:47 +0300
Subject: [PATCH] Return configuration error if keyserver is not known

---
 client/CDocSupport.cpp | 21 ++++++++++++++-------
 1 file changed, 14 insertions(+), 7 deletions(-)

diff --git a/client/CDocSupport.cpp b/client/CDocSupport.cpp
index 47a4419d1..e49a4db0f 100644
--- a/client/CDocSupport.cpp
+++ b/client/CDocSupport.cpp
@@ -188,26 +188,33 @@ checkConnection()
 std::string
 DDConfiguration::getValue(std::string_view domain, std::string_view param) const
 {
-	std::string def = Settings::CDOC2_DEFAULT_KEYSERVER;
 	if (param == libcdoc::Configuration::KEYSERVER_SEND_URL) {
 #ifdef CONFIG_URL
 		QJsonObject list = Application::confValue(QLatin1String("CDOC2-CONF")).toObject();
+		if (list.isEmpty()) return {};
 		QJsonObject data = list.value(QLatin1String(domain.data(), domain.size())).toObject();
-		QString url = data.value(QLatin1String("POST")).toString(Settings::CDOC2_POST);
+		if (data.isEmpty()) return {};
+		QString url = data.value(QLatin1String("POST")).toString();
 		return url.toStdString();
 #else
-		QString url = Settings::CDOC2_POST;
-		return url.toStdString();
+		if (domain == Settings::CDOC2_DEFAULT_KEYSERVER) {
+			QString url = Settings::CDOC2_POST;
+			return url.toStdString();
+		}
 #endif
 	} else if (param == libcdoc::Configuration::KEYSERVER_FETCH_URL) {
 #ifdef CONFIG_URL
 		QJsonObject list = Application::confValue(QLatin1String("CDOC2-CONF")).toObject();
+		if (list.isEmpty()) return {};
 		QJsonObject data = list.value(QLatin1String(domain.data(), domain.size())).toObject();
-		QString url = data.value(QLatin1String("FETCH")).toString(Settings::CDOC2_GET);
+		if (data.isEmpty()) return {};
+		QString url = data.value(QLatin1String("FETCH")).toString();
 		return url.toStdString();
 #else
-		QString url = Settings::CDOC2_GET;
-		return url.toStdString();
+		if (domain == Settings::CDOC2_DEFAULT_KEYSERVER) {
+			QString url = Settings::CDOC2_GET;
+			return url.toStdString();
+		}
 #endif
 	}
 	return {};