check if photo exists and is readable in gen_thumb() function also

git-svn-id: file:///var/lib/svn/phpfspot/trunk@148 fa6a889d-dae6-447d-9e79-4ba9a3039384

1 files changed, 11 insertions, 0 deletions

diff --git a/phpfspot.class.php b/phpfspot.class.php
index 7084ce1..36662fd 100644
--- a/phpfspot.class.php
+++ b/phpfspot.class.php
@@ -654,6 +654,17 @@ class PHPFSPOT {
 
       /* calculate file MD5 sum */
       $full_path = $this->translate_path($details['directory_path'])  ."/". $details['name'];
+
+      if(!file_exists($full_path)) {
+         print "File ". $full_path ." does not exist\n";
+         return;
+      }
+
+      if(!is_readable($full_path)) {
+         print "File ". $full_path ." is not readable for ". get_current_user() ."\n";
+         return;
+      }
+
       $file_md5 = md5_file($full_path);
 
       $this->_debug("Image [". $idx ."] ". $details['name'] ." Thumbnails:");