vncserver: extract DetectUserName

unix/vncserver

@@ -40,8 +40,7 @@ $geometry = "1024x768";
 
 $vncUserDir = "$ENV{HOME}/.vnc";
 $vncUserConfig = "$vncUserDir/config";
-$vncUserName = `id -u -n`;
+$vncUserName = &DetectUserName();
-$vncUserName =~ s/^\s+|\s+$//g;
 
 $vncSystemConfigDir = "/etc/kasmvnc";
 $vncSystemConfigDefaultsFile = "$vncSystemConfigDir/vncserver-config-defaults";
@@ -933,3 +932,10 @@ sub DetectBinariesDir {
 
    return $result;
 }
+
+sub DetectUserName {
+   my $vncUserName = `id -u -n`;
+   $vncUserName =~ s/^\s+|\s+$//g;
+
+   return $vncUserName;
+}