Your IP : 172.28.240.42
<?php
namespace Bitrix\Main\Data;
class Cache
{
/**
* @var ICacheEngine
*/
private $cacheEngine;
private $clearCache = false;
private $content;
private $vars;
private $TTL;
private $uniqueString;
private $baseDir;
private $initDir;
private $filename;
private $isStarted = false;
/**
* @return Cache
*/
public static function createInstance()
{
$cacheEngine = null;
// Events can't be used here because events use cache
$cacheType = "files";
$v = \Bitrix\Main\Config\Configuration::getValue("cache");
if ($v != null && isset($v["type"]) && !empty($v["type"]))
$cacheType = $v["type"];
if (is_array($cacheType))
{
if (isset($cacheType["class_name"]))
{
if (!isset($cacheType["extension"]) || extension_loaded($cacheType["extension"]))
{
if (isset($cacheType["required_file"]) && ($requiredFile = \Bitrix\Main\Loader::getLocal($cacheType["required_file"])) !== false)
require_once($requiredFile);
$className = $cacheType["class_name"];
if (class_exists($className))
$cacheEngine = new $className();
}
}
}
else
{
switch ($cacheType)
{
case "memcache":
if (extension_loaded('memcache'))
$cacheEngine = new CacheEngineMemcache();
break;
case "eaccelerator":
if (extension_loaded('eaccelerator'))
$cacheEngine = new CacheEngineEAccelerator();
break;
case "apc":
if (extension_loaded('apc'))
$cacheEngine = new CacheEngineApc();
break;
case "files":
$cacheEngine = new CacheEngineFiles();
break;
default:
break;
}
}
if ($cacheEngine == null)
throw new \Bitrix\Main\Config\ConfigurationException("Cache engine is not found");
if (!$cacheEngine->isAvailable())
throw new \Bitrix\Main\SystemException("Cache engine is not available");
/*
$v = \Bitrix\Main\Config\Configuration::getValue("cache");
if ($v != null && isset($v["type"]))
{
$cacheType = $v["type"];
if (is_array($cacheType))
{
if (isset($cacheType["class_name"]))
{
if (!isset($cacheType["extension"]) || extension_loaded($cacheType["extension"]))
{
if (isset($cacheType["required_file"]) && ($requiredFile = \Bitrix\Main\Loader::getLocal($cacheType["required_file"])))
require_once($requiredFile);
$className = $cacheType["class_name"];
if (class_exists($className))
$cacheEngine = new $className();
}
}
}
else
{
switch ($cacheType)
{
case "memcache":
if (extension_loaded('memcache'))
$cacheEngine = new CacheEngineMemcache();
break;
case "eaccelerator":
if (extension_loaded('eaccelerator'))
$cacheEngine = new CacheEngineEAccelerator();
break;
case "apc":
if (extension_loaded('apc'))
$cacheEngine = new CacheEngineApc();
break;
default:
break;
}
}
if (($cacheEngine != null) && !$cacheEngine->isAvailable())
$cacheEngine = null;
}
if ($cacheEngine == null)
$cacheEngine = new CacheEngineFiles();
*/
return new self($cacheEngine);
}
public function __construct(ICacheEngine $cacheEngine)
{
$this->cacheEngine = $cacheEngine;
}
public function setClearCache($value = false)
{
$this->clearCache = $value;
}
public function setClearCacheSession($value = false)
{
$_SESSION["SESS_CLEAR_CACHE"] = $value;
$this->setClearCache($value);
}
private function getClearCache()
{
if (!$this->clearCache && isset($_SESSION["SESS_CLEAR_CACHE"]) && $_SESSION["SESS_CLEAR_CACHE"])
$this->clearCache = true;
return $this->clearCache;
}
private function getPath($uniqueString)
{
$un = md5($uniqueString);
return substr($un, 0, 2)."/".$un.".php";
}
public function clean($uniqueString, $initDir = false, $baseDir = "cache")
{
$personalRoot = \Bitrix\Main\Application::getPersonalRoot();
$baseDir = \Bitrix\Main\IO\Path::combine($personalRoot, $baseDir);
$filename = $this->getPath($uniqueString);
return $this->cacheEngine->clean($baseDir, $initDir, $filename);
}
public function cleanDir($initDir = false, $baseDir = "cache")
{
$personalRoot = \Bitrix\Main\Application::getPersonalRoot();
$baseDir = \Bitrix\Main\IO\Path::combine($personalRoot, $baseDir);
return $this->cacheEngine->clean($baseDir, $initDir);
}
public function initCache($TTL, $uniqueString, $initDir = false, $baseDir = "cache")
{
if ($initDir === false)
{
$request = \Bitrix\Main\Context::getCurrent()->getRequest();
$initDir = $request->getRequestedPageDirectory();
}
$personalRoot = \Bitrix\Main\Application::getPersonalRoot();
$this->baseDir = \Bitrix\Main\IO\Path::combine($personalRoot, $baseDir);
$this->initDir = $initDir;
$this->filename = $this->getPath($uniqueString);
$this->TTL = $TTL;
$this->uniqueString = $uniqueString;
$this->vars = false;
if ($TTL <= 0)
return false;
if ($this->getClearCache())
return false;
$arAllVars = array("CONTENT" => "", "VARS" => "");
if (!$this->cacheEngine->read($arAllVars, $this->baseDir, $this->initDir, $this->filename, $this->TTL))
return false;
$this->content = $arAllVars["CONTENT"];
$this->vars = $arAllVars["VARS"];
return true;
}
public function output()
{
echo $this->content;
}
public function getVars()
{
return $this->vars;
}
function startDataCache($TTL = false, $uniqueString = false, $initDir = false, $vars = array(), $baseDir = "cache")
{
$narg = func_num_args();
if($narg<=0)
$TTL = $this->TTL;
if($narg<=1)
$uniqueString = $this->uniqueString;
if($narg<=2)
$initDir = $this->initDir;
if($narg<=3)
$vars = $this->vars;
if ($this->initCache($TTL, $uniqueString, $initDir, $baseDir))
{
$this->output();
return false;
}
if ($TTL <= 0)
return true;
ob_start();
$this->vars = $vars;
$this->isStarted = true;
return true;
}
public function abortDataCache()
{
if (!$this->isStarted)
return;
$this->isStarted = false;
ob_end_flush();
}
function endDataCache($vars=false)
{
if (!$this->isStarted)
return;
$this->isStarted = false;
$arAllVars = array(
"CONTENT" => ob_get_contents(),
"VARS" => ($vars!==false ? $vars : $this->vars),
);
$this->cacheEngine->write($arAllVars, $this->baseDir, $this->initDir, $this->filename, $this->TTL);
if(strlen(ob_get_contents()) > 0)
ob_end_flush();
else
ob_end_clean();
}
public function isCacheExpired($path)
{
return $this->cacheEngine->isCacheExpired($path);
}
}