104 lines
2.3 KiB
PHP
104 lines
2.3 KiB
PHP
<?php
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/**
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* Copyright (c) 2012 Bart Visscher <bartv@thisnet.nl>
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* This file is licensed under the Affero General Public License version 3 or
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* later.
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* See the COPYING-README file.
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*/
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class OC_Cache_File{
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protected $storage;
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protected function getStorage() {
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if (isset($this->storage)) {
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return $this->storage;
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}
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if(OC_User::isLoggedIn()){
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$subdir = 'cache';
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$view = new OC_FilesystemView('/'.OC_User::getUser());
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if(!$view->file_exists($subdir)) {
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$view->mkdir($subdir);
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}
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$this->storage = new OC_FilesystemView('/'.OC_User::getUser().'/'.$subdir);
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return $this->storage;
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}else{
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OC_Log::write('core','Can\'t get cache storage, user not logged in', OC_Log::ERROR);
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return false;
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}
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}
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public function get($key) {
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if ($this->hasKey($key)) {
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$storage = $this->getStorage();
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return $storage->file_get_contents($key);
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}
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return null;
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}
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public function set($key, $value, $ttl=0) {
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$storage = $this->getStorage();
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if ($storage and $storage->file_put_contents($key, $value)) {
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if ($ttl === 0) {
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$ttl = 86400; // 60*60*24
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}
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return $storage->touch($key, time() + $ttl);
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}
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return false;
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}
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public function hasKey($key) {
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$storage = $this->getStorage();
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if ($storage && $storage->is_file($key)) {
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$mtime = $storage->filemtime($key);
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if ($mtime < time()) {
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$storage->unlink($key);
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return false;
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}
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return true;
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}
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return false;
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}
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public function remove($key) {
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$storage = $this->getStorage();
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if(!$storage){
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return false;
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}
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return $storage->unlink($key);
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}
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public function clear($prefix=''){
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$storage = $this->getStorage();
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if($storage and $storage->is_dir('/')){
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$dh=$storage->opendir('/');
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while($file=readdir($dh)){
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if($file!='.' and $file!='..' and ($prefix==='' || strpos($file, $prefix) === 0)){
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$storage->unlink('/'.$file);
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}
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}
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}
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return true;
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}
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public function gc() {
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$storage = $this->getStorage();
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if($storage and $storage->is_dir('/')) {
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$now = time();
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$dh=$storage->opendir('/');
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while($file=readdir($dh)) {
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if($file!='.' and $file!='..') {
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$mtime = $storage->filemtime('/'.$file);
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if ($mtime < $now) {
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$storage->unlink('/'.$file);
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}
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}
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}
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}
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}
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public static function loginListener() {
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$c = new self();
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$c->gc();
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}
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}
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