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<?php |
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declare(strict_types=1); |
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/* |
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* This file is part of the TYPO3 CMS project. |
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* |
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* It is free software; you can redistribute it and/or modify it under |
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* the terms of the GNU General Public License, either version 2 |
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* of the License, or any later version. |
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* |
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* For the full copyright and license information, please read the |
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* LICENSE.txt file that was distributed with this source code. |
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* |
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* The TYPO3 project - inspiring people to share! |
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*/ |
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namespace ApacheSolrForTypo3\Solr; |
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use ApacheSolrForTypo3\Solr\Domain\Index\Queue\UpdateHandler\Events\PageMovedEvent; |
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use ApacheSolrForTypo3\Solr\Domain\Index\Queue\UpdateHandler\Events\RecordDeletedEvent; |
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use ApacheSolrForTypo3\Solr\Domain\Index\Queue\UpdateHandler\Events\RecordGarbageCheckEvent; |
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use ApacheSolrForTypo3\Solr\Domain\Index\Queue\UpdateHandler\GarbageHandler; |
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use ApacheSolrForTypo3\Solr\System\TCA\TCAService; |
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use Psr\EventDispatcher\EventDispatcherInterface; |
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use TYPO3\CMS\Backend\Utility\BackendUtility; |
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use TYPO3\CMS\Core\DataHandling\DataHandler; |
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use TYPO3\CMS\Core\SingletonInterface; |
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use TYPO3\CMS\Core\Utility\GeneralUtility; |
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use UnexpectedValueException; |
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/** |
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* Garbage Collector, removes related documents from the index when a record is |
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* set to hidden, is deleted or is otherwise made invisible to website visitors. |
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* |
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* Garbage collection will happen for online/LIVE workspaces only. |
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* |
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* @author Ingo Renner <[email protected]> |
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* @author Timo Schmidt <[email protected]> |
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*/ |
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class GarbageCollector implements SingletonInterface |
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{ |
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/** |
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* @var array |
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*/ |
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protected array $trackedRecords = []; |
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/** |
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* @var TCAService |
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*/ |
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protected TCAService $tcaService; |
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/** |
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* @var EventDispatcherInterface |
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*/ |
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protected EventDispatcherInterface $eventDispatcher; |
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/** |
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* GarbageCollector constructor. |
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* |
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* @param TCAService|null $TCAService |
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* @param EventDispatcherInterface|null $eventDispatcher |
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*/ |
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public function __construct(TCAService $TCAService = null, EventDispatcherInterface $eventDispatcher = null) |
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{ |
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$this->tcaService = $TCAService ?? GeneralUtility::makeInstance(TCAService::class); |
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$this->eventDispatcher = $eventDispatcher ?? GeneralUtility::makeInstance(EventDispatcherInterface::class); |
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} |
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/** |
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* Hooks into TCE main and tracks record deletion commands. |
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* |
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* @param string $command The command. |
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* @param string $table The table the record belongs to |
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* @param int $uid The record's uid |
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* @param string $value Not used |
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* @param DataHandler $tceMain TYPO3 Core Engine parent object, not used |
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* @noinspection PhpMissingParamTypeInspection |
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* @noinspection PhpUnusedParameterInspection |
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*/ |
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public function processCmdmap_preProcess($command, $table, $uid, $value, DataHandler $tceMain): void |
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{ |
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// workspaces: process command map only for LIVE workspace |
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if (($GLOBALS['BE_USER']->workspace ?? null) != 0) { |
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return; |
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} |
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if ($command === 'delete') { |
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$this->eventDispatcher->dispatch( |
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new RecordDeletedEvent((int)$uid, (string)$table) |
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); |
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} elseif ($command === 'move' && $table === 'pages') { |
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$pageRow = BackendUtility::getRecord('pages', $uid); |
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$this->trackedRecords['pages'][$uid] = $pageRow; |
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} |
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} |
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/** |
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* Tracks down index documents belonging to a particular record or page and |
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* removes them from the index and the Index Queue. |
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* |
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* @param string $table The record's table name. |
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* @param int $uid The record's uid. |
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* @throws UnexpectedValueException if a hook object does not implement interface \ApacheSolrForTypo3\Solr\GarbageCollectorPostProcessor |
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*/ |
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public function collectGarbage(string $table, int $uid): void |
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{ |
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$this->getGarbageHandler()->collectGarbage($table, $uid); |
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} |
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/** |
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* Hooks into TCE main and tracks page move commands. |
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* |
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* @param string $command The command. |
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* @param string $table The table the record belongs to |
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* @param int $uid The record's uid |
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* @param string $value Not used |
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* @param DataHandler $tceMain TYPO3 Core Engine parent object, not used |
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* @noinspection PhpMissingParamTypeInspection |
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* @noinspection PhpUnusedParameterInspection |
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*/ |
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public function processCmdmap_postProcess($command, $table, $uid, $value, DataHandler $tceMain) |
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{ |
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// workspaces: collect garbage only for LIVE workspace |
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if ($command === 'move' && $table === 'pages' && ($GLOBALS['BE_USER']->workspace ?? null) == 0) { |
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$event = new PageMovedEvent((int)$uid); |
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if (($this->trackedRecords['pages'][$uid] ?? null) !== null) { |
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$event->setPreviousParentId((int)$this->trackedRecords['pages'][$uid]['pid']); |
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} |
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$this->eventDispatcher->dispatch($event); |
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} |
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} |
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/** |
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* Hooks into TCE main and tracks changed records. In this case the current |
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* record's values are stored to do a change comparison later on for fields |
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* like fe_group. |
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* |
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* @param array $incomingFields An array of incoming fields, new or changed, not used |
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* @param string $table The table the record belongs to |
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* @param mixed $uid The record's uid, [integer] or [string] (like 'NEW...') |
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* @param DataHandler $tceMain TYPO3 Core Engine parent object, not used |
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* @noinspection PhpMissingParamTypeInspection |
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* @noinspection PhpUnusedParameterInspection |
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*/ |
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public function processDatamap_preProcessFieldArray($incomingFields, $table, $uid, DataHandler $tceMain): void |
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{ |
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if (!is_int($uid)) { |
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// a newly created record, skip |
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return; |
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} |
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$uid = (int)$uid; |
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$table = (string)$table; |
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if (Util::isDraftRecord($table, $uid)) { |
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// skip workspaces: collect garbage only for LIVE workspace |
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return; |
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} |
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$hasConfiguredEnableColumnForFeGroup = $this->tcaService->isEnableColumn($table, 'fe_group'); |
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if (!$hasConfiguredEnableColumnForFeGroup) { |
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return; |
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} |
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$record = $this->getGarbageHandler()->getRecordWithFieldRelevantForGarbageCollection($table, $uid); |
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// If no record could be found skip further processing |
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if (empty($record)) { |
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return; |
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} |
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$record = $this->tcaService->normalizeFrontendGroupField($table, $record); |
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// keep previous state of important fields for later comparison |
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$this->trackedRecords[$table][$uid] = $record; |
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} |
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/** |
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* Hooks into TCE Main and watches all record updates. If a change is |
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* detected that would remove the record from the website, we try to find |
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* related documents and remove them from the index. |
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* |
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* @param string $status Status of the current operation, 'new' or 'update' |
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* @param string $table The table the record belongs to |
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* @param mixed $uid The record's uid, [integer] or [string] (like 'NEW...') |
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* @param array $fields The record's data, not used |
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* @param DataHandler $tceMain TYPO3 Core Engine parent object, not used |
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* @noinspection PhpMissingParamTypeInspection |
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* @noinspection PhpUnusedParameterInspection |
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*/ |
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public function processDatamap_afterDatabaseOperations($status, $table, $uid, array $fields, DataHandler $tceMain): void |
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{ |
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if ($status === 'new') { |
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// a newly created record, skip |
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return; |
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} |
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$uid = (int)$uid; |
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$table = (string)$table; |
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if (Util::isDraftRecord($table, $uid)) { |
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// skip workspaces: collect garbage only for LIVE workspace |
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return; |
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} |
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$updatedRecord = $this->getGarbageHandler()->getRecordWithFieldRelevantForGarbageCollection($table, $uid); |
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if (empty($updatedRecord)) { |
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return; |
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} |
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$this->eventDispatcher->dispatch( |
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new RecordGarbageCheckEvent( |
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$uid, |
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$table, |
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$fields, |
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$this->hasFrontendGroupsRemoved($table, $updatedRecord) |
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) |
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); |
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} |
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/** |
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* Checks whether the frontend group field exists for the record and if so |
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* whether groups have been removed from accessing the record thus making |
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* the record invisible to at least some people. |
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* |
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* @param string $table The table name. |
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* @param array $updatedRecord An array with fields of the updated record that may affect visibility. |
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* @return bool TRUE if frontend groups have been removed from access to the record, FALSE otherwise. |
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*/ |
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protected function hasFrontendGroupsRemoved(string $table, array $updatedRecord): bool |
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{ |
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if (!isset($GLOBALS['TCA'][$table]['ctrl']['enablecolumns']['fe_group'])) { |
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return false; |
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} |
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$frontendGroupsField = $GLOBALS['TCA'][$table]['ctrl']['enablecolumns']['fe_group']; |
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$previousGroups = GeneralUtility::intExplode(',', (string)$this->trackedRecords[$table][$updatedRecord['uid']][$frontendGroupsField]); |
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$currentGroups = GeneralUtility::intExplode(',', (string)$updatedRecord[$frontendGroupsField]); |
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$removedGroups = array_diff($previousGroups, $currentGroups); |
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return !empty($removedGroups); |
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} |
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/** |
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* Returns the GarbageHandler |
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* |
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* @return GarbageHandler |
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*/ |
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protected function getGarbageHandler(): GarbageHandler |
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{ |
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return GeneralUtility::makeInstance(GarbageHandler::class); |
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} |
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} |
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