allow small files to be excluded from deletion

Signed-off-by: Florian Pritz <bluewind@xssn.at>

2 files changed, 16 insertions, 4 deletions

diff --git a/system/application/config/example/config.php b/system/application/config/example/config.php
index b9ce20468..af54fb383 100755
--- a/system/application/config/example/config.php
+++ b/system/application/config/example/config.php
@@ -341,6 +341,10 @@ $config['upload_path'] = FCPATH.'data/uploads';
 $config['upload_max_size'] = 256*1024*1024;
 $config['upload_max_text_size'] = 2*1024*1024;
 $config['upload_max_age'] = 60*60*24*5; // 5 days
+
+// won't be deleted
+$config['small_upload_size'] = 1024*10; // 10KB
+
 $config['passwordsalt'] = ''; // just enter any string you want here
 
 /* End of file config.php */
diff --git a/system/application/controllers/file.php b/system/application/controllers/file.php
index d772a3478..a07debc40 100644
--- a/system/application/controllers/file.php
+++ b/system/application/controllers/file.php
@@ -131,16 +131,24 @@ class File extends Controller {
   function cron()
   {
     $oldest_time = (time()-$this->config->item('upload_max_age'));
+    $small_upload_size = $this->config->item('small_upload_size');
     $query = $this->db->query('SELECT hash, id FROM files WHERE date < ?',
       array($oldest_time));
 
     foreach($query->result_array() as $row) {
       $file = $this->file_mod->file($row['hash']);
-      if(file_exists($file) && filemtime($file) < $oldest_time) {
-        unlink($file);
-        $this->db->query('DELETE FROM files WHERE hash = ?', array($row['hash']));
-      } else {
+      if (!file_exists($file)) {
         $this->db->query('DELETE FROM files WHERE id = ? LIMIT 1', array($row['id']));
+        continue;
+      }
+
+      if (filesize($file) > $small_upload_size) {
+        if (filemtime($file) < $oldest_time) {
+          unlink($file);
+          $this->db->query('DELETE FROM files WHERE hash = ?', array($row['hash']));
+        } else {
+          $this->db->query('DELETE FROM files WHERE id = ? LIMIT 1', array($row['id']));
+        }
       }
     }
   }