From 424eddc71def51d22ec9f19d6a57c06af0d25295 Mon Sep 17 00:00:00 2001
From: Christian Schwarz <me@cschwarz.com>
Date: Sat, 18 Mar 2017 20:03:57 +0100
Subject: [PATCH] Assert Settings backing store is writable if core is
 unconfigured.

---
 src/common/settings.cpp | 4 ++++
 src/common/settings.h   | 7 +++++++
 src/core/core.cpp       | 7 +++++++
 3 files changed, 18 insertions(+)

diff --git a/src/common/settings.cpp b/src/common/settings.cpp
index f0defb8d..c3713d9c 100644
--- a/src/common/settings.cpp
+++ b/src/common/settings.cpp
@@ -120,6 +120,10 @@ void Settings::setVersionMinor(const uint versionMinor)
     s.setValue("Config/VersionMinor", versionMinor);
 }
 
+bool Settings::isWritable() {
+    create_qsettings;
+    return s.isWritable();
+}
 
 QStringList Settings::allLocalKeys()
 {
diff --git a/src/common/settings.h b/src/common/settings.h
index e9bf28d0..21938643 100644
--- a/src/common/settings.h
+++ b/src/common/settings.h
@@ -83,6 +83,13 @@ public:
      */
     virtual void setVersionMinor(const uint versionMinor);
 
+    /**
+     * Check if the configuration storage is writable.
+     *
+     * @return true if writable, false otherwise
+     */
+    bool isWritable();
+
 protected:
     inline Settings(QString group_, QString appName_) : group(group_), appName(appName_) {}
     inline virtual ~Settings() {}
diff --git a/src/core/core.cpp b/src/core/core.cpp
index b5bea2cd..dadd70a4 100644
--- a/src/core/core.cpp
+++ b/src/core/core.cpp
@@ -194,7 +194,14 @@ void Core::init()
                                         "to work."));
             exit(1); // TODO make this less brutal (especially for mono client -> popup)
         }
+
         qWarning() << "Core is currently not configured! Please connect with a Quassel Client for basic setup.";
+
+        if (!cs.isWritable()) {
+            qWarning() << "Cannot write quasselcore configuration; probably a permission problem.";
+            exit(EXIT_FAILURE);
+        }
+
     }
 
     if (Quassel::isOptionSet("add-user")) {
-- 
2.20.1