Forgot a file

lib/cache/fileglobal.php

+<?php
+/**
+ * Copyright (c) 2012 Bart Visscher <bartv@thisnet.nl>
+ * This file is licensed under the Affero General Public License version 3 or
+ * later.
+ * See the COPYING-README file.
+ */
+
+
+class OC_Cache_FileGlobal{
+	protected function getCacheDir() {
+		$cache_dir = get_temp_dir().'/owncloud-'.OC_Util::getInstanceId().'/';
+		if (!is_dir($cache_dir)) {
+			mkdir($cache_dir);
+		}
+		return $cache_dir;
+	}
+
+	public function get($key) {
+		if ($this->hasKey($key)) {
+			$cache_dir = $this->getCacheDir();
+			return file_get_contents($cache_dir.$key);
+		}
+		return null;
+	}
+
+	public function set($key, $value, $ttl=0) {
+		$cache_dir = $this->getCacheDir();
+		if ($cache_dir and file_put_contents($cache_dir.$key, $value)) {
+			if ($ttl === 0) {
+				$ttl = 86400; // 60*60*24
+			}
+			return touch($cache_dir.$key, time() + $ttl);
+		}
+		return false;
+	}
+
+	public function hasKey($key) {
+		$cache_dir = $this->getCacheDir();
+		if ($cache_dir && is_file($cache_dir.$key)) {
+			$mtime = filemtime($cache_dir.$key);
+			if ($mtime < time()) {
+				unlink($cache_dir.$key);
+				return false;
+			}
+			return true;
+		}
+		return false;
+	}
+
+	public function remove($key) {
+		$cache_dir = $this->getCacheDir();
+		if(!$cache_dir){
+			return false;
+		}
+		return unlink($cache_dir.$key);
+	}
+
+	public function clear(){
+		$cache_dir = $this->getCacheDir();
+		if($cache_dir and is_dir($cache_dir)){
+			$dh=opendir($cache_dir);
+			while($file=readdir($dh)){
+				if($file!='.' and $file!='..'){
+					unlink($cache_dir.$file);
+				}
+			}
+		}
+	}
+}