Added more error checking in rcube_image::resize()

1 files changed, 8 insertions, 0 deletions

diff --git a/program/lib/Roundcube/rcube_image.php b/program/lib/Roundcube/rcube_image.php
index 735a0df01..09bb4e81b 100644
--- a/program/lib/Roundcube/rcube_image.php
+++ b/program/lib/Roundcube/rcube_image.php
@@ -93,6 +93,10 @@ class rcube_image
         $convert = $rcube->config->get('im_convert_path', false);
         $props   = $this->props();
 
+        if (empty($props)) {
+            return false;
+        }
+
         if (!$filename) {
             $filename = $this->image_file;
         }
@@ -148,6 +152,10 @@ class rcube_image
                 return false;
             }
 
+            if ($image === false) {
+                return false;
+            }
+
             $scale = $size / max($props['width'], $props['height']);
 
             // Imagemagick resize is implemented in shrinking mode (see -resize argument above)