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<?php
namespace Bitrix\Main\Composite;
use Bitrix\Main;
use Bitrix\Main\Composite\Data\CacheProvider;
use Bitrix\Main\Composite\Data;
use Bitrix\Main\Composite\Debug\Logger;
use Bitrix\Main\Composite\Internals\Model\PageTable;
use Bitrix\Main\Composite\Internals\PageManager;
/**
* Class Page
* @package Bitrix\Main\Composite
*/
class Page
{
/**
* @var Page
*/
protected static $instance = null;
/**
* @var string
*/
private $cacheKey = null;
/**
* @var bool
*/
private $canCache = true;
/**
* @var Data\AbstractStorage
*/
private $storage = null;
/**
* @var CacheProvider
*/
private $cacheProvider = null;
private $voting = true;
/**
* Creates new cache manager instance.
* @param {string } $requestUri
* @param {string} $host
* @param {string} $privateKey
*/
public function __construct($requestUri = null, $host = null, $privateKey = null)
{
if (func_num_args())
{
$cacheKey = static::convertUriToPath($requestUri, $host, $privateKey);
$this->init($cacheKey);
}
}
protected function init($cacheKey)
{
if (is_string($cacheKey) && mb_strlen($cacheKey))
{
$this->cacheKey = $cacheKey;
$this->storage = $this->getStaticHtmlStorage($this->cacheKey);
}
}
public static function createFromCacheKey($cacheKey)
{
$storage = new static();
$storage->init($cacheKey);
return $storage;
}
/**
* Returns current instance of the Storage.
*
* @return Page
*/
public static function getInstance()
{
if (!isset(static::$instance))
{
$cacheProvider = static::getCacheProvider();
$privateKey = $cacheProvider !== null ? $cacheProvider->getCachePrivateKey() : null;
static::$instance = new static(
Helper::getRequestUri(),
Helper::getHttpHost(),
Helper::getRealPrivateKey($privateKey)
);
if ($cacheProvider !== null)
{
static::$instance->setCacheProvider($cacheProvider);
}
}
return static::$instance;
}
/**
*
* Returns File Storage or Memcached Storage
* @return Data\AbstractStorage|null
*/
public function getStorage()
{
return $this->storage;
}
public function setCacheProvider(CacheProvider $provider)
{
$this->cacheProvider = $provider;
}
/**
* @return CacheProvider|null
*/
private static function getCacheProvider()
{
foreach (GetModuleEvents("main", "OnGetStaticCacheProvider", true) as $arEvent)
{
$provider = ExecuteModuleEventEx($arEvent);
if (is_object($provider) && $provider instanceof CacheProvider)
{
return $provider;
}
}
return null;
}
/*
* Returns private cache key
*/
public static function getPrivateKey()
{
$cacheProvider = static::getCacheProvider();
return $cacheProvider !== null ? $cacheProvider->getCachePrivateKey() : null;
}
/**
* Converts request uri into path safe file with .html extension.
* Returns empty string if fails.
* @param string $uri Uri.
* @param string $host Host name.
* @param string $privateKey
* @return string
*/
public static function convertUriToPath($uri, $host = null, $privateKey = null)
{
return Helper::convertUriToPath($uri, $host, $privateKey);
}
/**
* Returns cache key
* @return string
*/
public function getCacheKey()
{
return $this->cacheKey;
}
/**
* Writes the content to the storage
* @param string $content the string that is to be written
* @param string $md5 the content hash
*
* @return bool
*/
public function write($content, $md5)
{
if ($this->storage === null)
{
return false;
}
$cacheSize = $this->storage->getSize();
$written = $this->storage->write($content."<!--".$md5."-->", $md5);
if ($written !== false && $this->storage->shouldCountQuota())
{
$delta = $cacheSize !== false ? $written - $cacheSize : $written;
if ($delta !== 0)
{
Helper::updateCacheFileSize($delta);
}
}
return $written;
}
/**
* Returns html content from the cache
*
* @return string
*/
public function read()
{
if ($this->storage !== null)
{
return $this->storage->read();
}
return false;
}
/**
* Deletes the cache
*
* @return bool|int
*/
public function delete()
{
if ($this->storage === null)
{
return false;
}
$deletedSize = $this->storage->delete();
if ($deletedSize !== false && $this->storage->shouldCountQuota())
{
Helper::updateCacheFileSize(-$deletedSize);
}
PageManager::deleteByCacheKey($this->cacheKey);
return $deletedSize;
}
/**
* Deletes all cache data
* @return bool
*/
public function deleteAll()
{
if ($this->storage === null)
{
return false;
}
$this->storage->deleteAll();
if ($this->storage->shouldCountQuota())
{
Helper::updateCacheFileSize(false);
}
PageTable::deleteAll();
return true;
}
/**
* Returns the time the cache was last modified
* @return int|false
*/
public function getLastModified()
{
if ($this->storage !== null)
{
return $this->storage->getLastModified();
}
return false;
}
/**
* Returns true if the cache exists
*
* @return boolean
*/
public function exists()
{
if ($this->storage !== null)
{
return $this->storage->exists();
}
return false;
}
/**
* Returns hash of the cache
* @return string|false
*/
public function getMd5()
{
if ($this->storage !== null)
{
return $this->storage->getMd5();
}
return false;
}
/**
* Returns cache size
* @return int|false
*/
public function getSize()
{
if ($this->storage !== null)
{
return $this->storage->getSize();
}
return false;
}
/**
* Returns true if we can cache current request
*
* @return bool
*/
public function isCacheable()
{
if ($this->storage === null)
{
return false;
}
if ($this->cacheProvider !== null && $this->cacheProvider->isCacheable() === false)
{
return false;
}
if (isset(\Bitrix\Main\Application::getInstance()->getKernelSession()["SESS_SHOW_TIME_EXEC"]) && (\Bitrix\Main\Application::getInstance()->getKernelSession()["SESS_SHOW_TIME_EXEC"] == 'Y'))
{
return false;
}
elseif (isset(\Bitrix\Main\Application::getInstance()->getKernelSession()["SHOW_SQL_STAT"]) && (\Bitrix\Main\Application::getInstance()->getKernelSession()["SHOW_SQL_STAT"] == 'Y'))
{
return false;
}
elseif (isset(\Bitrix\Main\Application::getInstance()->getKernelSession()["SHOW_CACHE_STAT"]) && (\Bitrix\Main\Application::getInstance()->getKernelSession()["SHOW_CACHE_STAT"] == 'Y'))
{
return false;
}
$httpStatus = intval(\CHTTP::GetLastStatus());
if ($httpStatus == 200 || $httpStatus === 0)
{
return $this->canCache;
}
return false;
}
/**
* Marks current page as non cacheable.
*
* @return void
*/
public function markNonCacheable()
{
$this->canCache = false;
if (Logger::isOn())
{
$debugBacktrace = debug_backtrace();
Logger::log(array(
"TYPE" => Debug\Logger::TYPE_PAGE_NOT_CACHEABLE,
"MESSAGE" => "File: ".$debugBacktrace[0]["file"].":".$debugBacktrace[0]["line"]
));
}
}
public function setUserPrivateKey()
{
if ($this->cacheProvider !== null)
{
$this->cacheProvider->setUserPrivateKey();
}
}
public function onBeforeEndBufferContent()
{
if ($this->cacheProvider !== null)
{
$this->cacheProvider->onBeforeEndBufferContent();
}
}
/**
* Returns the instance of the StaticHtmlStorage
* @param string $cacheKey unique cache identifier
*
* @return Data\AbstractStorage|null
*/
public static function getStaticHtmlStorage($cacheKey)
{
$configuration = array();
$htmlCacheOptions = Helper::getOptions();
$storage = isset($htmlCacheOptions["STORAGE"]) ? $htmlCacheOptions["STORAGE"] : false;
if (in_array($storage, array("memcached", "memcached_cluster")))
{
if (extension_loaded("memcache"))
{
return new Data\MemcachedStorage($cacheKey, $configuration, $htmlCacheOptions);
}
else
{
return null;
}
}
else
{
return new Data\FileStorage($cacheKey, $configuration, $htmlCacheOptions);
}
}
public function enableVoting()
{
$this->voting = true;
}
public function disableVoting()
{
$this->voting = false;
}
public function isVotingEnabled()
{
return $this->voting;
}
/**
* Tries to vote against composite mode
* @param string $context
* @internal
*/
public function giveNegativeComponentVote($context = "")
{
if (
defined("USE_HTML_STATIC_CACHE")
&& USE_HTML_STATIC_CACHE === true
&& StaticArea::getCurrentDynamicId() === false //Voting doesn't work inside a dynamic area
)
{
if (!$this->isVotingEnabled())
{
return;
}
$this->canCache = false;
Debug\Logger::log(array(
"TYPE" => Debug\Logger::TYPE_COMPONENT_VOTING,
"MESSAGE" => $context
));
}
}
}
class_alias("Bitrix\\Main\\Composite\\Page", "Bitrix\\Main\\Data\\StaticHtmlCache");