From 0a5042ec6e55c1a41e0ad1aec1087251a757e40a Mon Sep 17 00:00:00 2001
From: Kijin Sung <kijin@kijinsung.com>
Date: Sat, 11 Feb 2017 14:21:21 +0900
Subject: [PATCH] Fix potential fatal error when migrating from previous
 session

---
 common/legacy.php                | 7 ++++---
 modules/file/file.controller.php | 4 ++++
 2 files changed, 8 insertions(+), 3 deletions(-)

diff --git a/common/legacy.php b/common/legacy.php
index 69fd3f716..b2c92e581 100644
--- a/common/legacy.php
+++ b/common/legacy.php
@@ -187,12 +187,12 @@ function getNextSequence()
  */
 function setUserSequence($seq)
 {
-	if(!isset($_SESSION['seq']))
+	if (!isset($_SESSION['seq']) || !is_array($_SESSION['seq']))
 	{
 		$_SESSION['seq'] = array();
 	}
-	debugPrint($_SESSION['seq']);
-	$_SESSION['seq'][] = $seq;
+	$seq = intval($seq);
+	$_SESSION['seq'][$seq] = $seq;
 }
 
 /**
@@ -203,6 +203,7 @@ function setUserSequence($seq)
  */
 function checkUserSequence($seq)
 {
+	$seq = intval($seq);
 	return isset($_SESSION['seq']) && in_array($seq, $_SESSION['seq']);
 }
 
diff --git a/modules/file/file.controller.php b/modules/file/file.controller.php
index 6f2ddf9c1..7ec1cf5bf 100644
--- a/modules/file/file.controller.php
+++ b/modules/file/file.controller.php
@@ -699,6 +699,10 @@ class fileController extends file
 	 */
 	function setUploadInfo($editor_sequence, $upload_target_srl=0)
 	{
+		if(!isset($_SESSION['upload_info']) || !is_array($_SESSION['upload_info']))
+		{
+			$_SESSION['upload_info'] = array();
+		}
 		if(!isset($_SESSION['upload_info'][$editor_sequence]))
 		{
 			$_SESSION['upload_info'][$editor_sequence] = new stdClass();