Add extra toastr notice about longer load times for big folders not recently viewed

functions.php

@@ -54,7 +54,9 @@ function makeThumb($item = "") {
       $imgdata = null;
       for ( $i=0; $i<$zip->numFiles; $i++ ) {
          $imgname = basename($zip->getNameIndex($i));
-         $imgext = strtolower(pathinfo($imgname)['extension']);
+         $parts = pathinfo($imgname);
+         if ( isset($parts['extension']) ) {
+            $imgext = strtolower($parts['extension']);
             if ( (strcmp($lowest, $imgname) > 0)
                  && ((strcasecmp($imgext, "jpg") == 0)
                      || (strcasecmp($imgext, "png") == 0)
@@ -63,6 +65,7 @@ function makeThumb($item = "") {
                $imgdata = $zip->getFromIndex($i);
             }
          }
+      }
       $zip->close();
       if ( is_null($imgdata) ) return false;
       $didwrite = file_put_contents($outfile, $imgdata);
@@ -74,7 +77,9 @@ function makeThumb($item = "") {
       $lowest = "~";
       foreach ( $entries as $entry ) {
          $imgname = $entry->getName();
-         $imgext = strtolower(pathinfo($imgname)['extension']);
+         $parts = pathinfo($imgname);
+         if ( isset($parts['extension']) ) {
+            $imgext = strtolower($parts['extension']);
             if ( (strcmp($lowest, $imgname) > 0)
                  && ((strcasecmp($imgext, "jpg") == 0)
                      || (strcasecmp($imgext, "png") == 0)
@@ -84,6 +89,7 @@ function makeThumb($item = "") {
                if ( !$didwrite ) { return false; }
             }
          }
+      }
       rar_close($rar_file);
    } else {
       return false;

js/comics.js

@@ -12,6 +12,7 @@ var lightbox = null;
 
 function getFolderContents() {
    $("#list").html("");
+   toastr.info("Loading folder contents. Comics containing a large number of issues, or issues with a large number of pages, that have not been opened recently may take some time to load. Thank you for your patience!", "Loading Contents...", {timeOut: 15000});
    $.ajax({
       url      : 'ajax/getfoldercontents.php',
       dataType : 'json',