From 2d8f57a1ea5e503ba04844fb24cf1c2f4576dd0d Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?J=C3=B6rn=20Friedrich=20Dreyer?= <jfd@butonic.de>
Date: Mon, 2 Feb 2015 23:19:54 +0100
Subject: [PATCH 1/3] check if cache files are readable

---
 lib/private/cache/file.php       | 2 +-
 lib/private/cache/fileglobal.php | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/lib/private/cache/file.php b/lib/private/cache/file.php
index 4e7c065678..7bffc2cc2d 100644
--- a/lib/private/cache/file.php
+++ b/lib/private/cache/file.php
@@ -83,7 +83,7 @@ class File {
 
 	public function hasKey($key) {
 		$storage = $this->getStorage();
-		if ($storage && $storage->is_file($key)) {
+		if ($storage && $storage->is_readable($key)) {
 			return true;
 		}
 		return false;
diff --git a/lib/private/cache/fileglobal.php b/lib/private/cache/fileglobal.php
index d9e0fd46d3..61902d273c 100644
--- a/lib/private/cache/fileglobal.php
+++ b/lib/private/cache/fileglobal.php
@@ -52,7 +52,7 @@ class FileGlobal {
 	public function hasKey($key) {
 		$key = $this->fixKey($key);
 		$cache_dir = self::getCacheDir();
-		if ($cache_dir && is_file($cache_dir.$key)) {
+		if ($cache_dir && is_readable($cache_dir.$key)) {
 			$mtime = filemtime($cache_dir.$key);
 			if ($mtime < time()) {
 				unlink($cache_dir.$key);

From ded8cc47cfb1173c10a47f7ab0f65fbb4ab74741 Mon Sep 17 00:00:00 2001
From: Arthur Schiwon <blizzz@owncloud.com>
Date: Mon, 2 Feb 2015 23:47:59 +0100
Subject: [PATCH 2/3] :camel:case

---
 lib/private/cache/file.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/private/cache/file.php b/lib/private/cache/file.php
index 7bffc2cc2d..b6e426989b 100644
--- a/lib/private/cache/file.php
+++ b/lib/private/cache/file.php
@@ -83,7 +83,7 @@ class File {
 
 	public function hasKey($key) {
 		$storage = $this->getStorage();
-		if ($storage && $storage->is_readable($key)) {
+		if ($storage && $storage->isReadable($key)) {
 			return true;
 		}
 		return false;

From 86935fab17a823071c4593f1b27aeb2d4df4e99c Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?J=C3=B6rn=20Friedrich=20Dreyer?= <jfd@butonic.de>
Date: Tue, 3 Feb 2015 10:13:25 +0100
Subject: [PATCH 3/3] readd is_file

---
 lib/private/cache/file.php       | 2 +-
 lib/private/cache/fileglobal.php | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/lib/private/cache/file.php b/lib/private/cache/file.php
index b6e426989b..3b500c4e45 100644
--- a/lib/private/cache/file.php
+++ b/lib/private/cache/file.php
@@ -83,7 +83,7 @@ class File {
 
 	public function hasKey($key) {
 		$storage = $this->getStorage();
-		if ($storage && $storage->isReadable($key)) {
+		if ($storage && $storage->is_file($key) && $storage->isReadable($key)) {
 			return true;
 		}
 		return false;
diff --git a/lib/private/cache/fileglobal.php b/lib/private/cache/fileglobal.php
index 61902d273c..8406adabd7 100644
--- a/lib/private/cache/fileglobal.php
+++ b/lib/private/cache/fileglobal.php
@@ -52,7 +52,7 @@ class FileGlobal {
 	public function hasKey($key) {
 		$key = $this->fixKey($key);
 		$cache_dir = self::getCacheDir();
-		if ($cache_dir && is_readable($cache_dir.$key)) {
+		if ($cache_dir && is_file($cache_dir.$key) && is_readable($cache_dir.$key)) {
 			$mtime = filemtime($cache_dir.$key);
 			if ($mtime < time()) {
 				unlink($cache_dir.$key);