From 05648dac619942dfccc76180d30fcd79364355ec Mon Sep 17 00:00:00 2001
From: Michael Gapczynski <mtgap@owncloud.com>
Date: Wed, 8 Aug 2012 11:25:24 -0400
Subject: [PATCH] Don't return file handle if the mode supports writing and the
file is not writable
---
apps/files_sharing/sharedstorage.php | 19 +++++++++++++++++++
1 file changed, 19 insertions(+)
diff --git a/apps/files_sharing/sharedstorage.php b/apps/files_sharing/sharedstorage.php
index fc0d272b54..05df275ca9 100644
--- a/apps/files_sharing/sharedstorage.php
+++ b/apps/files_sharing/sharedstorage.php
@@ -367,6 +367,25 @@ class OC_Filestorage_Shared extends OC_Filestorage_Common {
public function fopen($path, $mode) {
$source = $this->getSource($path);
if ($source) {
+ switch ($mode) {
+ case 'r+':
+ case 'rb+':
+ case 'w+':
+ case 'wb+':
+ case 'x+':
+ case 'xb+':
+ case 'a+':
+ case 'ab+':
+ case 'w':
+ case 'wb':
+ case 'x':
+ case 'xb':
+ case 'a':
+ case 'ab':
+ if (!$this->is_writable($path)) {
+ return false;
+ }
+ }
$info = array(
'target' => $this->datadir.$path,
'source' => $source,
--
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