101 lines
2.5 KiB
PHP
101 lines
2.5 KiB
PHP
<?php
|
|
/**
|
|
* Cache with file system
|
|
*/
|
|
class FileCache extends CacheAbstract{
|
|
protected $cacheDirCreated; // boolean to avoid always chck dir cache existance
|
|
|
|
public function loadData(){
|
|
$this->isPrepareCache();
|
|
|
|
$datas = unserialize(file_get_contents($this->getCacheFile()));
|
|
$items = array();
|
|
foreach($datas as $aData){
|
|
$item = new \Item();
|
|
foreach($aData as $name => $value){
|
|
$item->$name = $value;
|
|
}
|
|
$items[] = $item;
|
|
}
|
|
|
|
return $items;
|
|
}
|
|
|
|
public function saveData($datas){
|
|
$this->isPrepareCache();
|
|
|
|
//Re-encode datas to UTF-8
|
|
//$datas = Cache::utf8_encode_deep($datas);
|
|
|
|
$writeStream = file_put_contents($this->getCacheFile(), serialize($datas));
|
|
|
|
if(!$writeStream) {
|
|
|
|
throw new \Exception("Cannot write the cache... Do you have the right permissions ?");
|
|
|
|
}
|
|
|
|
return $this;
|
|
}
|
|
|
|
public function getTime(){
|
|
$this->isPrepareCache();
|
|
|
|
$cacheFile = $this->getCacheFile();
|
|
if( file_exists($cacheFile) ){
|
|
return filemtime($cacheFile);
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* Cache is prepared ?
|
|
* Note : Cache name is based on request information, then cache must be prepare before use
|
|
* @return \Exception|true
|
|
*/
|
|
protected function isPrepareCache(){
|
|
if( is_null($this->param) ){
|
|
throw new \Exception('Please feed "prepare" method before try to load');
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* Return cache path (and create if not exist)
|
|
* @return string Cache path
|
|
*/
|
|
protected function getCachePath(){
|
|
$cacheDir = __DIR__ . '/../cache/'; // FIXME : configuration ?
|
|
|
|
// FIXME : implement recursive dir creation
|
|
if( is_null($this->cacheDirCreated) && !is_dir($cacheDir) ){
|
|
$this->cacheDirCreated = true;
|
|
|
|
mkdir($cacheDir,0705);
|
|
chmod($cacheDir,0705);
|
|
}
|
|
|
|
return $cacheDir;
|
|
}
|
|
|
|
/**
|
|
* Get the file name use for cache store
|
|
* @return string Path to the file cache
|
|
*/
|
|
protected function getCacheFile(){
|
|
return $this->getCachePath() . $this->getCacheName();
|
|
}
|
|
|
|
/**
|
|
* Determines file name for store the cache
|
|
* return string
|
|
*/
|
|
protected function getCacheName(){
|
|
$this->isPrepareCache();
|
|
|
|
$stringToEncode = $_SERVER['REQUEST_URI'] . http_build_query($this->param);
|
|
return hash('sha1', $stringToEncode) . '.cache';
|
|
}
|
|
}
|