Set rls_uri when migrating config file from GTK version to Qt version so that...

Set rls_uri when migrating config file from GTK version to Qt version so that presence switches from peer-to-peer mode to list mode.

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

@@ -30,6 +30,7 @@
 #include "config.h"
 
 #include "Paths.hpp"
+#include <linphone++/linphone.hh>
 
 #define PATH_ASSISTANT_CONFIG "/assistant/"
 #define PATH_AVATARS "/avatars/"
@@ -254,6 +255,14 @@ static void migrateConfigurationFile (const QString &oldPath, const QString &new
   }
 }
 
+static void setRlsUri (const QString &configPath) {
+  shared_ptr<linphone::Config> config = linphone::Config::newWithFactory(Utils::appStringToCoreString(configPath), "");
+  if (config->getString("sip", "rls_uri", "").empty()) {
+    config->setString("sip", "rls_uri", "sips:rls@sip.linphone.org");
+	config->sync();
+  }
+}
+
 void Paths::migrate () {
   QString newPath = getAppConfigFilePath();
   QString oldBaseDir = QSysInfo::productType() == "windows"
@@ -261,8 +270,11 @@ void Paths::migrate () {
     : QStandardPaths::writableLocation(QStandardPaths::HomeLocation);
   QString oldPath = oldBaseDir + "/.linphonerc";
 
-  if (!filePathExists(newPath) && filePathExists(oldPath))
+  if (!filePathExists(newPath) && filePathExists(oldPath)) {
     migrateConfigurationFile(oldPath, newPath);
+	/* Define RLS uri so that presence switches from peer-to-peer mode to list mode */
+    setRlsUri(newPath);
+  }
 
   newPath = getAppCallHistoryFilePath();
   oldPath = oldBaseDir + "/.linphone-call-history.db";