From: Alexander Ebert <ebert@woltlab.com>
Date: Mon, 27 May 2013 22:52:15 +0000 (+0200)
Subject: Fixed extraction of empty files
X-Git-Tag: 2.0.0_Beta_1~32^2~2
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=bb6d6068b4c7df639602393e6d09bd43215d9273;p=GitHub%2FWoltLab%2FWCF.git

Fixed extraction of empty files

Fixes #1310
---

diff --git a/wcfsetup/install/files/lib/system/io/Tar.class.php b/wcfsetup/install/files/lib/system/io/Tar.class.php
index 277b6c701a..d59ccaeeb6 100644
--- a/wcfsetup/install/files/lib/system/io/Tar.class.php
+++ b/wcfsetup/install/files/lib/system/io/Tar.class.php
@@ -204,6 +204,11 @@ class Tar implements IArchive {
 		}
 		$header = $this->getFileInfo($index);
 		
+		// check file size
+		if (!$header['size']) {
+			throw new SystemException("Could not untar file '".$header['filename']."', file is empty.");
+		}
+		
 		FileUtil::makePath(dirname($destination));
 		if ($header['type'] === 'folder') {
 			FileUtil::makePath($destination);