Validate IDs when generating thumbnail history

The thumbnail function generates an invalid image (HTML error message)
if the ID is invalid resulting in empty images. Catch those when
creating the page to prevent that.

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

1 files changed, 5 insertions, 0 deletions

diff --git a/application/controllers/file.php b/application/controllers/file.php
index 55ed10fea..d510badc0 100644
--- a/application/controllers/file.php
+++ b/application/controllers/file.php
@@ -416,6 +416,11 @@ class File extends CI_Controller {
 			", array($user))->result_array();
 
 		foreach($query as $key => $item) {
+			if (!$this->mfile->valid_id($item["id"])) {
+				unset($query[$key]);
+				continue;
+			}
+
 			$filesize = format_bytes($item["filesize"]);
 			$dimensions = $this->mfile->image_dimension($this->mfile->file($item["hash"]));
 			$upload_date = date("r", $item["date"]);