Only override zrtp secrets, user certificates and root ca paths if they are...

Only override zrtp secrets, user certificates and root ca paths if they are empty or that the file does not exist.

linphone-desktop/src/app/paths/Paths.cpp

@@ -64,10 +64,6 @@ inline bool filePathExists (const QString &path) {
   return file.exists();
 }
 
-inline bool filePathExists (const string &path) {
-  return filePathExists(Utils::linphoneStringToQString(path));
-}
-
 inline void ensureDirPathExists (const QString &path) {
   QDir dir(path);
   if (!dir.exists() && !dir.mkpath(path))
@@ -160,6 +156,12 @@ inline QString getAppMessageHistoryFilePath () {
 
 // -----------------------------------------------------------------------------
 
+bool Paths::filePathExists (const string &path) {
+  return filePathExists(Utils::linphoneStringToQString(path));
+}
+
+// -----------------------------------------------------------------------------
+
 string Paths::getAssistantConfigDirPath () {
   return getReadableDirPath(getAppAssistantConfigDirPath());
 }

linphone-desktop/src/app/paths/Paths.hpp

@@ -30,6 +30,8 @@
 // =============================================================================
 
 namespace Paths {
+  bool filePathExists (const std::string &path);
+
   std::string getAssistantConfigDirPath ();
   std::string getAvatarsDirPath ();
   std::string getCallHistoryFilePath ();

linphone-desktop/src/components/core/CoreManager.cpp

@@ -103,10 +103,15 @@ void CoreManager::setDatabasesPaths () {
 }
 
 void CoreManager::setOtherPaths () {
-  // Force paths. Ask me why if it's a problem for you.
+  if (mCore->getZrtpSecretsFile().empty() || !Paths::filePathExists(mCore->getZrtpSecretsFile())) {
     mCore->setZrtpSecretsFile(Paths::getZrtpSecretsFilePath());
+  }
+  if (mCore->getUserCertificatesPath().empty() || !Paths::filePathExists(mCore->getUserCertificatesPath())) {
     mCore->setUserCertificatesPath(Paths::getUserCertificatesDirPath());
+  }
+  if (mCore->getRootCa().empty() || !Paths::filePathExists(mCore->getRootCa())) {
     mCore->setRootCa(Paths::getRootCaFilePath());
+  }
 }
 
 void CoreManager::setResourcesPaths () {