Some fixes for local only groups and one for mail check.

Rocksolid_Light/common/header.php

@@ -166,10 +166,11 @@ if($unread) {
     echo '</tr></table>';
     echo '</p>';
 function check_unread_mail() {
-global $CONFIG, $spooldir;
+        global $CONFIG, $spooldir;
         if(isset($_COOKIE['mail_name'])) {
           $name = strtolower($_COOKIE['mail_name']);
           $database = $spooldir.'/mail.db3';
+          if(is_file($database)) {
             $dbh = head_mail_db_open($database);
             $query = $dbh->prepare('SELECT * FROM messages where rcpt_to=:rcpt_to');
             $query->execute(['rcpt_to' => $name]);
@@ -181,6 +182,9 @@ global $CONFIG, $spooldir;
             }
             $dbh = null;
             return $newmail;
+          } else {
+            return false;
+        }
     }
 }
 

Rocksolid_Light/rocksolid/overboard.php

@@ -276,8 +276,9 @@ function display_threads($threads, $oldest) {
     echo '<table cellspacing="0" width="100%" class="np_results_table">';
     if(!isset($threads)) {
         $threads = (object)[];
-    }
+    } else {
       krsort($threads);
+    }
     $results = 0;
     foreach($threads as $key => $value) {
       $target = $this_overboard['msgids'][$value];

Rocksolid_Light/rocksolid/thread.php

@@ -115,7 +115,9 @@ if(isset($frames_on) && $frames_on === true) {
 // $ns=nntp_open($server,$port);
   flush();
   $headers = thread_load($group);
+  if($headers) {
     $article_count=count($headers);
+  }
   if ($articles_per_page != 0) { 
     if ((!isset($first)) || (!isset($last))) {
       if ($startpage=="first") {
@@ -134,7 +136,7 @@ if(isset($frames_on) && $frames_on === true) {
     } else {
       // oh no, the replies will not be shown, this makes life hard...
       $pagecount=0;
-      if(count($headers) > 0 && is_array($headers)) {
+      if(($headers) && (count($headers) > 0 && is_array($headers))) {
         foreach($headers as $h) {
           if($h->isAnswer==false)
             $pagecount++;