100 lines
3.1 KiB
PHP
100 lines
3.1 KiB
PHP
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<?php
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namespace WapplerSystems\Meilisearch\Domain\Variants;
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/***************************************************************
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* Copyright notice
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*
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* (c) 2017- Timo Hund <timo.hund@dkd.de>
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* All rights reserved
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*
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* This script is part of the TYPO3 project. The TYPO3 project is
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* free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 3 of the License, or
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* (at your option) any later version.
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*
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* The GNU General Public License can be found at
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* http://www.gnu.org/copyleft/gpl.html.
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*
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* This script is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* This copyright notice MUST APPEAR in all copies of the script!
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***************************************************************/
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use TYPO3\CMS\Core\Utility\GeneralUtility;
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/**
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* The variantId can be used to group documents by a variantId. This variantId is by default unique per system,
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* and has the following syntax:
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*
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* <SystemHash>/type/uid
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*
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* A file from one system will get the same variantId, which could be useful for de-duplication.
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* @author Timo Hund <timo.hund@dkd.de>
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*/
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class IdBuilder
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{
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/**
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* This method is used to build a variantId.
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*
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* By default the variantId is used
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* @param string $type
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* @param integer $uid
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* @return string
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*/
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public function buildFromTypeAndUid($type, $uid)
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{
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$systemHash = $this->getSystemHash();
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$variantId = $systemHash . '/' . $type . '/' . $uid;
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$variantId = $this->applyHook($variantId, $systemHash, $type, $uid);
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return $variantId;
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}
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/**
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* Applies configured postProcessing hooks to build a custom variantId.
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*
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* @param string $variantId
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* @param string $systemHash
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* @param string $type
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* @param integer $uid
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* @return string
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*/
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protected function applyHook($variantId, $systemHash, $type, $uid)
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{
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if (!is_array($GLOBALS['TYPO3_CONF_VARS']['EXTCONF']['solr']['modifyVariantId'])) {
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return $variantId;
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}
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foreach ($GLOBALS['TYPO3_CONF_VARS']['EXTCONF']['solr']['modifyVariantId'] as $classReference) {
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$variantIdModifier = GeneralUtility::makeInstance($classReference);
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if ($variantIdModifier instanceof IdModifier) {
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$variantId = $variantIdModifier->modifyVariantId($variantId, $systemHash, $type, $uid);
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}
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}
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return $variantId;
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}
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/**
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* Returns a system unique hash.
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*
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* @return string
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*/
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protected function getSystemHash()
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{
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if (!isset($GLOBALS['TYPO3_CONF_VARS']['SYS']['sitename'])) {
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throw new \InvalidArgumentException("No sitename set in TYPO3_CONF_VARS|SYS|sitename");
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}
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$siteName = $GLOBALS['TYPO3_CONF_VARS']['SYS']['sitename'];
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$systemKey = 'tx_meilisearch' . $siteName;
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return GeneralUtility::hmac($systemKey);
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}
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}
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