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<?php |
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/** |
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* Created by jensk on 25-10-2017. |
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*/ |
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namespace CloudControl\Cms\components; |
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use CloudControl\Cms\cc\Request; |
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use CloudControl\Cms\components\cms\CmsConstants; |
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use CloudControl\Cms\storage\Cache; |
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class CachableBaseComponent extends BaseComponent |
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{ |
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const DEFAULT_MAXAGE = 'P7D'; |
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const PARAMETER_CACHABLE = 'cachable'; |
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const PARAMETER_MAXAGE = 'maxage'; |
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protected $cachable = true; |
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protected $maxAge = self::DEFAULT_MAXAGE; |
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protected $cacheValidity; |
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protected $cache; |
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/** |
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* CachableBaseComponent constructor. |
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* @param string $template |
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* @param Request $request |
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* @param array $parameters |
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* @param $matchedSitemapItem |
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*/ |
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public function __construct($template = '', Request $request, $parameters = array(), $matchedSitemapItem) |
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{ |
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parent::__construct($template, $request, $parameters, $matchedSitemapItem); |
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if (isset($this->parameters[self::PARAMETER_CACHABLE]) && $this->parameters[self::PARAMETER_CACHABLE] === 'false') { |
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$this->cachable = false; |
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} |
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if (isset($this->parameters[self::PARAMETER_MAXAGE])) { |
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$this->maxAge = $this->parameters[self::PARAMETER_MAXAGE]; |
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} |
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$this->setCacheValidity(); |
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} |
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public function get() |
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{ |
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if ($this->isCachable() && $this->isCacheValid()) { |
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return $this->cache->contents; |
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} else if ($this->isCachable() && !$this->isCacheValid()) { |
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$this->createCache($this->renderedContent); |
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} |
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return $this->renderedContent; |
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} |
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/** |
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* @return bool |
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*/ |
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public function isCachable() |
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{ |
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return $this->cachable; |
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} |
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/** |
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* @return bool |
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*/ |
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public function isCacheValid() |
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{ |
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if ($this->isLoggedIn()) { |
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return false; |
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} |
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if ($this->cacheValidity === null) { |
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return $this->setCacheValidity(); |
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} |
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return $this->cacheValidity; |
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} |
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private function isLoggedIn() |
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{ |
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return isset($_SESSION[CmsConstants::SESSION_PARAMETER_CLOUD_CONTROL]); |
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} |
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/** |
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* @return string |
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*/ |
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public function getMaxAge() |
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{ |
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return $this->maxAge; |
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} |
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protected function setCacheValidity() |
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{ |
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if ($this->cacheValidity === null) { |
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$this->cache = Cache::getInstance()->getCacheForPath(Request::$requestUri); |
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$cacheExists = $this->cache !== false; |
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$cacheExpired = false; |
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if ($cacheExists) { |
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$cacheCreationStamp = (int) $this->cache->creationStamp; |
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$currentTime = time(); |
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$cacheAge = $currentTime - $cacheCreationStamp; |
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$maxAgeInterval = new \DateInterval($this->maxAge); |
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$maxAgeSeconds = date_create('@0')->add($maxAgeInterval)->getTimestamp(); |
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$cacheExpired = $cacheAge > $maxAgeSeconds; |
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} |
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$this->cacheValidity = $cacheExists && !$cacheExpired; |
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} |
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return $this->cacheValidity; |
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} |
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private function createCache($renderedContent) |
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{ |
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Cache::getInstance()->setCacheForPath(Request::$requestUri, $renderedContent); |
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} |
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} |
jenskooij /
cloudcontrol
