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<?php |
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declare(strict_types=1); |
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namespace IntegerNet\AsyncVarnish\Model; |
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use Magento\CacheInvalidate\Model\PurgeCache as PurgeCache; |
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use IntegerNet\AsyncVarnish\Model\TagRepository as TagRepository; |
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use Magento\Framework\App\Config\ScopeConfigInterface; |
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class PurgeAsyncCache |
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{ |
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const VARNISH_PURGE_TAG_GLUE = "|"; |
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const MAX_HEADER_LENGTH_CONFIG_PATH = 'system/full_page_cache/async_varnish/varnish_max_header_length'; |
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/** |
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* @var PurgeCache |
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*/ |
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private $purgeCache; |
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/** |
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* @var TagRepository |
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*/ |
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private $tagRepository; |
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/** |
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* @var ScopeConfigInterface |
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*/ |
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private $scopeConfig; |
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public function __construct( |
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PurgeCache $purgeCache, |
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ScopeConfigInterface $scopeConfig, |
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TagRepository $tagRepository |
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) { |
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$this->purgeCache = $purgeCache; |
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$this->scopeConfig = $scopeConfig; |
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$this->tagRepository = $tagRepository; |
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} |
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private function getMaxHeaderLengthFromConfig() |
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{ |
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return $this->scopeConfig->getValue(self::MAX_HEADER_LENGTH_CONFIG_PATH); |
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} |
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/** |
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* @throws \Zend_Db_Statement_Exception |
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* @throws \Exception |
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*/ |
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public function run():int |
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{ |
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$tags = $this->tagRepository->getAll(); |
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$maxHeaderLength = $this->getMaxHeaderLengthFromConfig(); |
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if (!empty($tags)) { |
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$tagChunks = []; |
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$index = 0; |
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foreach ($tags as $tag) { |
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$nextChunkString = (isset($tagChunks[$index]) |
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? $tagChunks[$index] . self::VARNISH_PURGE_TAG_GLUE |
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: '') . $tag; |
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if (strlen($nextChunkString) <= $maxHeaderLength) { |
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$tagChunks[$index] = $nextChunkString; |
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} else { |
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$index ++; |
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$tagChunks[$index] = $tag; |
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} |
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} |
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foreach ($tagChunks as $tagChunk) { |
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$this->purgeCache->sendPurgeRequest($tagChunk); |
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} |
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} |
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if ($lastUsedId = $this->tagRepository->getLastUsedId()) { |
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$this->tagRepository->deleteUpToId($lastUsedId); |
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} |
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return count($tags); |
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} |
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} |
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integer-net /
magento2-async-varnish
