ApacheSolrForTypo3\Solr\Domain\Index\Queue\UpdateHandler\DataUpdateHandler

Complexity

Total Complexity

58

Size/Duplication

Total Lines	499
Duplicated Lines	0 %

Importance

Changes	1
Bugs	0	Features	0

22 Methods

Rating	Name	Duplication	Size	Complexity
A	handlePageUpdate()	0	20	6
A	removeFromIndexAndQueue()	0	3	1
B	processRecord()	0	41	11
A	applyRecordChangesToQueue()	0	14	4
A	getSolrConfigurationFromPageId()	0	3	1
A	__construct()	0	20	1
A	getValidatedPid()	0	10	2
A	getIsTranslationParentRecordEnabled()	0	4	1
A	getGarbageHandler()	0	3	1
A	handleContentElementDeletion()	0	11	2
A	removeFromIndexAndQueueWhenItemInQueue()	0	7	2
A	getConfigurationPageId()	0	13	2
A	updateCanonicalPages()	0	5	2
A	handleRecordUpdate()	0	4	1
A	updatePageIdItems()	0	4	2
A	processPageRecord()	0	18	3
A	handleContentElementUpdate()	0	8	2
A	handleVersionSwap()	0	15	6
A	getRecordRootPageIds()	0	9	2
A	handleMovedRecord()	0	8	2
A	handleMovedPage()	0	3	1
A	applyPageChangesToQueue()	0	9	3

<?php declare(strict_types = 1);
namespace ApacheSolrForTypo3\Solr\Domain\Index\Queue\UpdateHandler;

/***************************************************************
 *  Copyright notice
 *
 *  (c) 2021 Markus Friedrich <markus.friedrich@dkd.de>
 *  All rights reserved
 *
 *  This script is part of the TYPO3 project. The TYPO3 project is
 *  free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 3 of the License, or
 *  (at your option) any later version.
 *
 *  The GNU General Public License can be found at
 *  http://www.gnu.org/copyleft/gpl.html.
 *
 *  This script is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  This copyright notice MUST APPEAR in all copies of the script!
 ***************************************************************/

use TYPO3\CMS\Core\DataHandling\DataHandler;
use TYPO3\CMS\Backend\Utility\BackendUtility;
use TYPO3\CMS\Core\Utility\GeneralUtility;
use ApacheSolrForTypo3\Solr\FrontendEnvironment;
use ApacheSolrForTypo3\Solr\IndexQueue\Queue;
use ApacheSolrForTypo3\Solr\Domain\Index\Queue\RecordMonitor\Helper\RootPageResolver;
use ApacheSolrForTypo3\Solr\Domain\Index\Queue\RecordMonitor\Helper\ConfigurationAwareRecordService;
use ApacheSolrForTypo3\Solr\Domain\Index\Queue\RecordMonitor\Helper\MountPagesUpdater;
use ApacheSolrForTypo3\Solr\System\TCA\TCAService;
use ApacheSolrForTypo3\Solr\System\Logging\SolrLogManager;
use ApacheSolrForTypo3\Solr\System\Records\Pages\PagesRepository;
use ApacheSolrForTypo3\Solr\System\Configuration\TypoScriptConfiguration;
use ApacheSolrForTypo3\Solr\Util;

/**
 * Data update handler
 *
 * Handles update on potential relevant records e.g.
 * an update might require index queue updates
 */
class DataUpdateHandler extends AbstractUpdateHandler
{
    /**
     * List of fields in the update field array that
     * are required for processing
     *
     * Note: For pages all fields except l10n_diffsource are
     *       kept, as additional fields can be configured in
     *       TypoScript, see AbstractDataUpdateEvent->_sleep.
     *
     * @var array
     */
    protected static $requiredUpdatedFields = [
        'pid',
    ];

    /**
     * Configuration used to check if recursive updates are required
     *
     * Holds the configuration when a recursive page queuing should be triggered, while processing record
     * updates
     *
     * Note: The SQL transaction is already committed, so the current state covers only "non"-changed fields.
     *
     * @var array
     */
    protected $updateSubPagesRecursiveTriggerConfiguration = [
        // the current page has the both fields "extendToSubpages" and "hidden" set from 1 to 0 => requeue subpages
        'HiddenAndExtendToSubpageWereDisabled' => [
            'changeSet' => [
                'hidden' => '0',
                'extendToSubpages' => '0'
            ]
        ],
        // the current page has the field "extendToSubpages" enabled and the field "hidden" was set to 0 => requeue subpages
        'extendToSubpageEnabledAndHiddenFlagWasRemoved' => [
            'currentState' =>  ['extendToSubpages' => '1'],
            'changeSet' => ['hidden' => '0']
        ],
        // the current page has the field "hidden" enabled and the field "extendToSubpages" was set to 0 => requeue subpages
        'hiddenIsEnabledAndExtendToSubPagesWasRemoved' => [
            'currentState' =>  ['hidden' => '1'],
            'changeSet' => ['extendToSubpages' => '0']
        ],
        // the field "no_search_sub_entries" of current page was set to 0
        'no_search_sub_entriesFlagWasAdded' => [
            'changeSet' => ['no_search_sub_entries' => '0']
        ],
    ];

    /**
     * @var MountPagesUpdater
     */
    protected $mountPageUpdater;

    /**
     * @var RootPageResolver
     */
    protected $rootPageResolver = null;

    /**
     * @var PagesRepository
     */
    protected $pagesRepository;

    /**
     * @var SolrLogManager
     */
    protected $logger = null;

    /**
     * @var DataHandler
     */
    protected $dataHandler;

    /**
     * @param ConfigurationAwareRecordService $recordService
     * @param FrontendEnvironment $frontendEnvironment
     * @param TCAService $tcaService
     * @param Queue $indexQueue
     * @param MountPagesUpdater $mountPageUpdater
     * @param RootPageResolver $rootPageResolver
     * @param PagesRepository $pagesRepository
     * @param SolrLogManager $solrLogManager
     * @param DataHandler $dataHandler
     */
    public function __construct(
        ConfigurationAwareRecordService $recordService ,
        FrontendEnvironment $frontendEnvironment,
        TCAService $tcaService,
        Queue $indexQueue,
        MountPagesUpdater $mountPageUpdater,
        RootPageResolver $rootPageResolver,
        PagesRepository $pagesRepository,
        DataHandler $dataHandler,
        SolrLogManager $solrLogManager = null
    ) {
        parent::__construct($recordService, $frontendEnvironment, $tcaService, $indexQueue);

        $this->mountPageUpdater = $mountPageUpdater;
        $this->rootPageResolver = $rootPageResolver;
        $this->pagesRepository = $pagesRepository;
        $this->dataHandler = $dataHandler;
        $this->logger = $solrLogManager ?? GeneralUtility::makeInstance(
            SolrLogManager::class,
            /** @scrutinizer ignore-type */ __CLASS__
        );
    }

    /**
     * Handle content element update
     *
     * @param int $uid
     * @param array $updatedFields
     */
    public function handleContentElementUpdate(int $uid, array $updatedFields = []): void
    {
        $pid = $updatedFields['pid'] ?? $this->getValidatedPid('tt_content', $uid);
        if ($pid === null) {
            return;
        }

        $this->processPageRecord($pid, (int)$pid, $updatedFields);
    }

    /**
     * Handles the deletion of a content element
     *
     * @param int $uid
     */
    public function handleContentElementDeletion(int $uid): void
    {
        // @TODO: Should be checked, is possibly unnecessary as
        //        also done via GarbageCollector & PageStrategy

        $pid = $this->getValidatedPid('tt_content', $uid);
        if ($pid === null) {
            return;
        }

        $this->indexQueue->updateItem('pages', $pid, Util::getExectionTime());
    }

    /**
     * Handles page updates
     *
     * @param int $uid
     * @param array $updatedFields
     */
    public function handlePageUpdate(int $uid, array $updatedFields = []): void
    {
        try {
            if (isset($updatedFields['l10n_parent']) && intval($updatedFields['l10n_parent']) > 0) {
                $pid = $updatedFields['l10n_parent'];
            } elseif ($this->rootPageResolver->getIsRootPageId($uid)) {
                $pid = $uid;
            } else {
                $pid = $updatedFields['pid'] ?? $this->getValidatedPid('pages', $uid);
            }
        } catch (\Throwable $e) {
            $pid = null;
        }

        if ($pid === null) {
            $this->removeFromIndexAndQueueWhenItemInQueue('pages', $uid);
            return;
        }

        $this->processPageRecord($uid, (int)$pid, $updatedFields);
    }

    /**
     * Handles record updates
     *
     * @param int $uid
     * @param string $table
     */
    public function handleRecordUpdate(int $uid, string $table): void
    {
        $rootPageIds = $this->getRecordRootPageIds($table, $uid);
        $this->processRecord($table, $uid, $rootPageIds);
    }

    /**
     * Handles a version swap
     *
     * @param int $uid
     * @param string $table
     */
    public function handleVersionSwap(int $uid, string $table): void
    {
        $isPageRelatedRecord = ($table === 'tt_content' || $table === 'pages');
        if($isPageRelatedRecord) {
            $uid = ($table === 'tt_content' ? $this->getValidatedPid($table, $uid) : $uid);
            if ($uid === null) {
                return;
            }
            $this->applyPageChangesToQueue($uid);
        } else {
            $recordPageId = $this->getValidatedPid($table, $uid);
            if ($recordPageId === null) {
                return;
            }
            $this->applyRecordChangesToQueue($table, $uid, $recordPageId);
        }
    }

    /**
     * Handle page move
     *
     * @param int $uid
     */
    public function handleMovedPage(int $uid): void
    {
        $this->applyPageChangesToQueue($uid);
    }

    /**
     * Handle record move
     *
     * @param int $uid
     * @param string $table
     */
    public function handleMovedRecord(int $uid, string $table): void
    {
        $pid = $this->getValidatedPid($table, $uid);
        if ($pid === null) {
            return;
        }

        $this->applyRecordChangesToQueue($table, $uid, $pid);
    }

    /**
     * Adds a page to the queue and updates mounts, when it is enabled, otherwise ensure that the page is removed
     * from the queue.
     *
     * @param int $uid
     */
    protected function applyPageChangesToQueue(int $uid): void
    {
        $solrConfiguration = $this->getSolrConfigurationFromPageId($uid);
        $record = $this->configurationAwareRecordService->getRecord('pages', $uid, $solrConfiguration);
        if (!empty($record) && $this->tcaService->isEnabledRecord('pages', $record)) {
            $this->mountPageUpdater->update($uid);
            $this->indexQueue->updateItem('pages', $uid);
        } else {
            $this->removeFromIndexAndQueueWhenItemInQueue('pages', $uid);
        }
    }

    /**
     * Adds a record to the queue if it is monitored and enabled, otherwise it removes the record from the queue.
     *
     * @param string $table
     * @param int $uid
     * @param int $pid
     */
    protected function applyRecordChangesToQueue(string $table, int $uid, int $pid): void
    {
        $solrConfiguration = $this->getSolrConfigurationFromPageId($pid);
        $isMonitoredTable = $solrConfiguration->getIndexQueueIsMonitoredTable($table);

        if ($isMonitoredTable) {
            $record = $this->configurationAwareRecordService->getRecord($table, $uid, $solrConfiguration);

            if (!empty($record) && $this->tcaService->isEnabledRecord($table, $record)) {
                $uid = $this->tcaService->getTranslationOriginalUidIfTranslated($table, $record, $uid);
                $this->indexQueue->updateItem($table, $uid);
            } else {
                // TODO should be moved to garbage collector
                $this->removeFromIndexAndQueueWhenItemInQueue($table, $uid);
            }
        }
    }

    /**
     * Removes record from the index queue and from the solr index
     *
     * @param string $recordTable Name of table where the record lives
     * @param int $recordUid Id of record
     */
    protected function removeFromIndexAndQueue(string $recordTable, int $recordUid): void
    {
        $this->getGarbageHandler()->collectGarbage($recordTable, $recordUid);
    }

    /**
     * Removes record from the index queue and from the solr index when the item is in the queue.
     *
     * @param string $recordTable Name of table where the record lives
     * @param int $recordUid Id of record
     */
    protected function removeFromIndexAndQueueWhenItemInQueue(string $recordTable, int $recordUid): void
    {
        if (!$this->indexQueue->containsItem($recordTable, $recordUid)) {
            return;
        }

        $this->removeFromIndexAndQueue($recordTable, $recordUid);
    }

    /**
     * @param $pageId
     * @return TypoScriptConfiguration
     */
    protected function getSolrConfigurationFromPageId(int $pageId): TypoScriptConfiguration
    {
        return $this->frontendEnvironment->getSolrConfigurationFromPageId($pageId);
    }

    /**
     * Fetch record root page ids
     *
     * @param string $recordTable The table the record belongs to
     * @param int $recordUid
     * @return int[]
     */
    protected function getRecordRootPageIds(string $recordTable, int $recordUid): array
    {
        try {
            $rootPageIds = $this->rootPageResolver->getResponsibleRootPageIds($recordTable, $recordUid);
        } catch (\InvalidArgumentException $e) {
            $rootPageIds = [];
        }

        return $rootPageIds;
    }

    /**
     * Processes a page record
     *
     * Note: Also used if content element is updated, the page
     * of the content element is processed here
     *
     * @param int $uid
     * @param int $pid
     * @param array $updatedFields
     */
    protected function processPageRecord(int $uid, int $pid, array $updatedFields = []): void
    {
        $configurationPageId = $this->getConfigurationPageId('pages', (int)$pid, $uid);
        if ($configurationPageId === 0) {
            $this->mountPageUpdater->update($uid);
            return;
        }
        $rootPageIds = [$configurationPageId];

        $this->processRecord('pages', $uid, $rootPageIds);

        $this->updateCanonicalPages($uid);
        $this->mountPageUpdater->update($uid);

        $recursiveUpdateRequired = $this->isRecursivePageUpdateRequired($uid, $updatedFields);
        if ($recursiveUpdateRequired) {
            $treePageIds = $this->getSubPageIds($uid);
            $this->updatePageIdItems($treePageIds);
        }
    }

    /**
     * Process a record
     *
     * @param string $recordTable
     * @param int $recordUid
     * @param array $rootPageIds
     */
    protected function processRecord(string $recordTable, int $recordUid, array $rootPageIds): void
    {
        if (empty($rootPageIds)) {
            $this->removeFromIndexAndQueueWhenItemInQueue($recordTable, $recordUid);
            return;
        }

        foreach ($rootPageIds as $configurationPageId) {
            $solrConfiguration = $this->getSolrConfigurationFromPageId($configurationPageId);
            $isMonitoredRecord = $solrConfiguration->getIndexQueueIsMonitoredTable($recordTable);
            if (!$isMonitoredRecord) {
                // when it is a non monitored record, we can skip it.
                continue;
            }

            $record = $this->configurationAwareRecordService->getRecord($recordTable, $recordUid, $solrConfiguration);
            if (empty($record)) {
                // TODO move this part to the garbage collector
                // check if the item should be removed from the index because it no longer matches the conditions
                $this->removeFromIndexAndQueueWhenItemInQueue($recordTable, $recordUid);
                continue;
            }
            // Clear existing index queue items to prevent mount point duplicates.
            // This needs to be done before the overlay handling, because handling an overlay record should
            // not trigger a deletion.
            $isTranslation = !empty($record['sys_language_uid']) && $record['sys_language_uid'] !== 0;
            if ($recordTable === 'pages' && !$isTranslation) {
                $this->indexQueue->deleteItem('pages', $recordUid);
            }

            // only update/insert the item if we actually found a record
            $isLocalizedRecord = $this->tcaService->isLocalizedRecord($recordTable, $record);
            $recordUid = $this->tcaService->getTranslationOriginalUidIfTranslated($recordTable, $record, $recordUid);

            if ($isLocalizedRecord && !$this->getIsTranslationParentRecordEnabled($recordTable, $recordUid)) {
                // we have a localized record without a visible parent record. Nothing to do.
                continue;
            }

            if ($this->tcaService->isEnabledRecord($recordTable, $record)) {
                $this->indexQueue->updateItem($recordTable, $recordUid);
            }
        }
    }

    /**
     * This method is used to determine the pageId that should be used to retrieve the index queue configuration.
     *
     * @param string $recordTable
     * @param int $recordPageId
     * @param int $recordUid
     * @return int
     */
    protected function getConfigurationPageId(string $recordTable, int $recordPageId, int $recordUid): int
    {
        $rootPageId = $this->rootPageResolver->getRootPageId($recordPageId);
        if ($this->rootPageResolver->getIsRootPageId($rootPageId)) {
            return $recordPageId;
        }

        $alternativeSiteRoots = $this->rootPageResolver->getAlternativeSiteRootPagesIds(
            $recordTable,
            $recordUid,
            $recordPageId
        );
        return (int)array_pop($alternativeSiteRoots);
    }

    /**
     * Checks if the parent record of the translated record is enabled.
     *
     * @param string $recordTable
     * @param int $recordUid
     * @return bool
     */
    protected function getIsTranslationParentRecordEnabled(string $recordTable, int $recordUid): bool
    {
        $l10nParentRecord = (array)BackendUtility::getRecord($recordTable, $recordUid, '*', '', false);
        return $this->tcaService->isEnabledRecord($recordTable, $l10nParentRecord);
    }

    /**
     * Applies the updateItem instruction on a collection of pageIds.
     *
     * @param array $treePageIds
     */
    protected function updatePageIdItems(array $treePageIds): void
    {
        foreach ($treePageIds as $treePageId) {
            $this->indexQueue->updateItem('pages', $treePageId);
        }
    }

    /**
     * Triggers Index Queue updates for other pages showing content from the
     * page currently being updated.
     *
     * @param int $pageId UID of the page currently being updated
     */
    protected function updateCanonicalPages(int $pageId): void
    {
        $canonicalPages = $this->pagesRepository->findPageUidsWithContentsFromPid((int)$pageId);
        foreach ($canonicalPages as $page) {
            $this->indexQueue->updateItem('pages', $page['uid']);
        }
    }

    /**
     * Retrieves the pid of a record, returns null if no pid could be found
     *
     * @param string $table
     * @param int $uid
     * @return int|null
     */
    protected function getValidatedPid(string $table, int $uid): ?int
    {
        $pid = $this->dataHandler->getPID($table, $uid);
        if ($pid === false) {
            $message = 'Record without valid pid was processed ' . $table . ':' . $uid;
            $this->logger->log(SolrLogManager::WARNING, $message);
            return null;
        }

        return (int)$pid;
    }

    /**
     * @return GarbageHandler
     */
    protected function getGarbageHandler(): GarbageHandler
    {
        return GeneralUtility::makeInstance(GarbageHandler::class);
    }
}