do_upload(): fix errors if no file was uploaded

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

1 files changed, 6 insertions, 1 deletions

diff --git a/application/controllers/file.php b/application/controllers/file.php
index 2e8664984..c2838b795 100644
--- a/application/controllers/file.php
+++ b/application/controllers/file.php
@@ -232,7 +232,12 @@ class File extends CI_Controller {
 				4=>"No file was uploaded",
 				6=>"Missing a temporary folder"
 			);
-			$this->data["msg"] = $errors[$_FILES['file']['error']];
+
+			$this->data["msg"] = "Unknown error.";
+
+			if (isset($_FILES["file"])) {
+				$this->data["msg"] = $errors[$_FILES['file']['error']];
+			}
 			$this->load->view($this->var->view_dir.'/header', $this->data);
 			$this->load->view($this->var->view_dir.'/upload_error', $this->data);
 			$this->load->view($this->var->view_dir.'/footer');