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<?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 $cache_dir;
}
protected function fixKey($key) {
return str_replace('/', '_', $key);
}
public function get($key) {
$key = $this->fixKey($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) {
$key = $this->fixKey($key);
$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) {
$key = $this->fixKey($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;
}
$key = $this->fixKey($key);
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);
}
}
}
}
}
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