nextcloud/lib/cache/file.php

119 lines
2.8 KiB
PHP
Raw Normal View History

<?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.
*/
namespace OC\Cache;
class File {
protected $storage;
protected function getStorage() {
2012-08-29 19:25:37 +04:00
if (isset($this->storage)) {
return $this->storage;
2012-08-29 01:10:32 +04:00
}
if(\OC_User::isLoggedIn()) {
\OC\Files\Filesystem::initMountPoints(\OC_User::getUser());
$subdir = 'cache';
$view = new \OC\Files\View('/' . \OC_User::getUser());
if(!$view->file_exists($subdir)) {
$view->mkdir($subdir);
}
$this->storage = new \OC\Files\View('/' . \OC_User::getUser().'/'.$subdir);
2012-08-29 19:25:37 +04:00
return $this->storage;
}else{
\OC_Log::write('core', 'Can\'t get cache storage, user not logged in', \OC_Log::ERROR);
return false;
}
}
public function get($key) {
$result = null;
$proxyStatus = \OC_FileProxy::$enabled;
\OC_FileProxy::$enabled = false;
2012-06-05 22:21:06 +04:00
if ($this->hasKey($key)) {
$storage = $this->getStorage();
$result = $storage->file_get_contents($key);
}
\OC_FileProxy::$enabled = $proxyStatus;
return $result;
}
2012-06-05 21:57:49 +04:00
public function set($key, $value, $ttl=0) {
$storage = $this->getStorage();
$result = false;
$proxyStatus = \OC_FileProxy::$enabled;
\OC_FileProxy::$enabled = false;
2012-06-05 21:57:49 +04:00
if ($storage and $storage->file_put_contents($key, $value)) {
if ($ttl === 0) {
$ttl = 86400; // 60*60*24
}
$result = $storage->touch($key, time() + $ttl);
}
\OC_FileProxy::$enabled = $proxyStatus;
return $result;
}
2012-06-05 22:21:06 +04:00
public function hasKey($key) {
$storage = $this->getStorage();
if ($storage && $storage->is_file($key)) {
2012-06-05 22:21:06 +04:00
$mtime = $storage->filemtime($key);
if ($mtime < time()) {
$storage->unlink($key);
return false;
}
return true;
}
return false;
}
public function remove($key) {
$storage = $this->getStorage();
2012-09-07 17:22:01 +04:00
if(!$storage) {
2012-06-05 21:57:49 +04:00
return false;
}
return $storage->unlink($key);
}
2012-06-05 21:57:49 +04:00
2012-09-07 17:22:01 +04:00
public function clear($prefix='') {
2012-06-05 21:57:49 +04:00
$storage = $this->getStorage();
2012-09-07 17:22:01 +04:00
if($storage and $storage->is_dir('/')) {
2012-06-05 21:57:49 +04:00
$dh=$storage->opendir('/');
if(is_resource($dh)) {
while (($file = readdir($dh)) !== false) {
if($file!='.' and $file!='..' and ($prefix==='' || strpos($file, $prefix) === 0)) {
$storage->unlink('/'.$file);
}
2012-06-05 21:57:49 +04:00
}
}
}
2012-07-22 04:31:43 +04:00
return true;
2012-06-05 21:57:49 +04:00
}
2012-08-29 01:07:09 +04:00
public function gc() {
$storage = $this->getStorage();
if($storage and $storage->is_dir('/')) {
$now = time();
$dh=$storage->opendir('/');
if(!is_resource($dh)) {
return null;
}
while (($file = readdir($dh)) !== false) {
2012-08-29 01:07:09 +04:00
if($file!='.' and $file!='..') {
$mtime = $storage->filemtime('/'.$file);
if ($mtime < $now) {
$storage->unlink('/'.$file);
}
}
}
}
}
public static function loginListener() {
$c = new self();
$c->gc();
}
}