StagesService.php

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<?php
 
declare(strict_types=1);
 
/*
 * This file is part of the TYPO3 CMS project.
 *
 * It is free software; you can redistribute it and/or modify it under
 * the terms of the GNU General Public License, either version 2
 * of the License, or any later version.
 *
 * For the full copyright and license information, please read the
 * LICENSE.txt file that was distributed with this source code.
 *
 * The TYPO3 project - inspiring people to share!
 */
 
namespace ‪TYPO3\CMS\Workspaces\Service;
 
use TYPO3\CMS\Backend\Utility\BackendUtility;
use ‪TYPO3\CMS\Core\Authentication\BackendUserAuthentication;
use ‪TYPO3\CMS\Core\Authentication\GroupResolver;
use ‪TYPO3\CMS\Core\Localization\LanguageService;
use ‪TYPO3\CMS\Core\SingletonInterface;
use ‪TYPO3\CMS\Core\Utility\GeneralUtility;
use ‪TYPO3\CMS\Workspaces\Domain\Record\StageRecord;
use ‪TYPO3\CMS\Workspaces\Domain\Record\WorkspaceRecord;
 
class ‪StagesService implements ‪SingletonInterface
{
    public const ‪TABLE_STAGE = 'sys_workspace_stage';
    // if a record is in the "ready to publish" stage STAGE_PUBLISH_ID the nextStage is STAGE_PUBLISH_EXECUTE_ID, this id wont be saved at any time in db
    public const ‪STAGE_PUBLISH_EXECUTE_ID = -20;
    // ready to publish stage
    public const ‪STAGE_PUBLISH_ID = -10;
    public const ‪STAGE_EDIT_ID = 0;
 
    private string ‪$pathToLocallang = 'LLL:EXT:workspaces/Resources/Private/Language/locallang.xlf';
 
    protected ?‪RecordService ‪$recordService;
 
    protected array ‪$workspaceStageCache = [];
    protected array ‪$workspaceStageAllowedCache = [];
 
    public function ‪getWorkspaceId(): int
    {
        return $this->‪getBackendUser()->workspace;
    }
 
    public function ‪getPreviousStageForElementCollection(
        array $workspaceItems,
        array $byTableName = ['tt_content', 'pages']
    ): array {
        $currentStage = [];
        $previousStage = [];
        $usedStages = [];
        $found = false;
        $availableStagesForWS = array_reverse($this->‪getAllStagesOfWorkspace());
        $availableStagesForWSUser = $this->‪getStagesForWSUser();
        $byTableName = array_flip($byTableName);
        foreach ($workspaceItems as $tableName => $items) {
            if (!array_key_exists($tableName, $byTableName)) {
                continue;
            }
            foreach ($items as $item) {
                $usedStages[$item['t3ver_stage'] ?? 0] = true;
            }
        }
        foreach ($availableStagesForWS as $stage) {
            if (isset($usedStages[$stage['uid']])) {
                $currentStage = $stage;
                $previousStage = $this->‪getPrevStage($stage['uid']);
                break;
            }
        }
        foreach ($availableStagesForWSUser as $userWS) {
            if ($previousStage && $previousStage['uid'] == $userWS['uid']) {
                $found = true;
                break;
            }
        }
        if ($found === false || !$this->‪isStageAllowedForUser($currentStage['uid'])) {
            $previousStage = [];
        }
        return [
            $currentStage,
            $previousStage,
        ];
    }
 
    public function ‪getNextStageForElementCollection(
        array $workspaceItems,
        array $byTableName = ['tt_content', 'pages']
    ): array {
        $currentStage = [];
        $usedStages = [];
        $nextStage = [];
        $availableStagesForWS = $this->‪getAllStagesOfWorkspace();
        $availableStagesForWSUser = $this->‪getStagesForWSUser();
        $byTableName = array_flip($byTableName);
        $found = false;
        foreach ($workspaceItems as $tableName => $items) {
            if (!array_key_exists($tableName, $byTableName)) {
                continue;
            }
            foreach ($items as $item) {
                $usedStages[$item['t3ver_stage'] ?? 0] = true;
            }
        }
        foreach ($availableStagesForWS as $stage) {
            if (isset($usedStages[$stage['uid']])) {
                $currentStage = $stage;
                $nextStage = $this->‪getNextStage($stage['uid']);
                break;
            }
        }
        foreach ($availableStagesForWSUser as $userWS) {
            if ($nextStage && $nextStage['uid'] == $userWS['uid']) {
                $found = true;
                break;
            }
        }
        if ($found === false || !$this->‪isStageAllowedForUser($currentStage['uid'])) {
            $nextStage = [];
        }
        return [
            $currentStage,
            $nextStage,
        ];
    }
 
    public function ‪getAllStagesOfWorkspace(): array
    {
        if (isset($this->workspaceStageCache[$this->‪getWorkspaceId()])) {
            $stages = $this->workspaceStageCache[$this->‪getWorkspaceId()];
        } elseif ($this->‪getWorkspaceId() === 0) {
            $stages = [];
        } else {
            $stages = $this->‪prepareStagesArray($this->‪getWorkspaceRecord()->getStages());
            $this->workspaceStageCache[$this->‪getWorkspaceId()] = $stages;
        }
        return $stages;
    }
 
    public function ‪getStagesForWSUser(): array
    {
        if ($this->‪getBackendUser()->isAdmin()) {
            return $this->‪getAllStagesOfWorkspace();
        }
        // The LIVE workspace has no stages
        if ($this->‪getWorkspaceId() === 0) {
            return [];
        }
 
        $allowedStages = [];
        $stageRecords = $this->‪getWorkspaceRecord()->getStages();
 
        // Only use stages that are allowed for current backend user
        foreach ($stageRecords as $stageRecord) {
            if ($stageRecord->isAllowed()) {
                $allowedStages[$stageRecord->getUid()] = $stageRecord;
            }
        }
 
        // Add previous and next stages (even if they are not allowed!)
        foreach ($allowedStages as $allowedStage) {
            $previousStage = $allowedStage->getPrevious();
            $nextStage = $allowedStage->getNext();
            if ($previousStage !== null && !isset($allowedStages[$previousStage->getUid()])) {
                $allowedStages[$previousStage->getUid()] = $previousStage;
            }
            if ($nextStage !== null && !isset($allowedStages[$nextStage->getUid()])) {
                $allowedStages[$nextStage->getUid()] = $nextStage;
            }
        }
 
        uasort($allowedStages, static function (‪StageRecord $first, ‪StageRecord $second) {
            return $first->‪determineOrder($second);
        });
        return $this->‪prepareStagesArray($allowedStages);
    }
 
    protected function ‪prepareStagesArray(array $stageRecords): array
    {
        $stagesArray = [];
        foreach ($stageRecords as $stageRecord) {
            $stage = [
                'uid' => $stageRecord->getUid(),
                'label' => $stageRecord->getTitle(),
            ];
            if (!$stageRecord->isExecuteStage()) {
                $stage['title'] = $this->‪getLanguageService()->sL($this->pathToLocallang . ':actionSendToStage') . ' "' . $stageRecord->getTitle() . '"';
            } else {
                $stage['title'] = $this->‪getLanguageService()->sL($this->pathToLocallang . ':publish_execute_action_option');
            }
            $stagesArray[] = $stage;
        }
        return $stagesArray;
    }
 
    public function ‪getStageTitle(int $stageId): string
    {
        switch ($stageId) {
            case ‪self::STAGE_PUBLISH_EXECUTE_ID:
                $stageTitle = $this->‪getLanguageService()->sL('LLL:EXT:workspaces/Resources/Private/Language/locallang_mod.xlf:stage_publish');
                break;
            case ‪self::STAGE_PUBLISH_ID:
                $stageTitle = $this->‪getLanguageService()->sL('LLL:EXT:workspaces/Resources/Private/Language/locallang_mod.xlf:stage_ready_to_publish');
                break;
            case ‪self::STAGE_EDIT_ID:
                $stageTitle = $this->‪getLanguageService()->sL('LLL:EXT:workspaces/Resources/Private/Language/locallang_mod.xlf:stage_editing');
                break;
            default:
                $stageTitle = $this->‪getPropertyOfCurrentWorkspaceStage($stageId, 'title');
                if ($stageTitle === null) {
                    $stageTitle = $this->‪getLanguageService()->sL('LLL:EXT:workspaces/Resources/Private/Language/locallang.xlf:error.getStageTitle.stageNotFound');
                }
        }
        return $stageTitle;
    }
 
    public function ‪getNextStage(int $stageId): array
    {
        $nextStage = false;
        $workspaceStageRecs = $this->‪getAllStagesOfWorkspace();
        if ($workspaceStageRecs !== []) {
            reset($workspaceStageRecs);
            while (key($workspaceStageRecs) !== null) {
                $workspaceStageRec = current($workspaceStageRecs);
                if ($workspaceStageRec['uid'] == $stageId) {
                    $nextStage = next($workspaceStageRecs);
                    break;
                }
                next($workspaceStageRecs);
            }
        }
        if ($nextStage === false) {
            $nextStage = [
                [
                    'uid' => ‪self::STAGE_EDIT_ID,
                    'title' => $this->‪getLanguageService()->sL($this->pathToLocallang . ':actionSendToStage') . ' "'
                        . $this->‪getLanguageService()->sL('LLL:EXT:workspaces/Resources/Private/Language/locallang_mod.xlf:stage_editing') . '"',
                ],
            ];
        }
        return $nextStage;
    }
 
    protected function ‪getNextStages(array &$nextStageArray, int $stageId): array
    {
        // Current stage is "Ready to publish" - there is no next stage
        if ($stageId == self::STAGE_PUBLISH_ID) {
            return $nextStageArray;
        }
        $nextStageRecord = $this->‪getNextStage($stageId);
        if ($nextStageRecord === []) {
            // There is no next stage
            return $nextStageArray;
        }
        // Check if the user has the permission to for the current stage
        // If this next stage record is the first next stage after the current the user
        // has always the needed permission
        if ($this->‪isStageAllowedForUser($stageId)) {
            $nextStageArray[] = $nextStageRecord;
            return $this->‪getNextStages($nextStageArray, (int)$nextStageRecord['uid']);
        }
        // He hasn't - return given next stage array
        return $nextStageArray;
    }
 
    public function ‪getPrevStage(int $stageId): false|array
    {
        $prevStage = false;
        $workspaceStageRecs = $this->‪getAllStagesOfWorkspace();
        if ($workspaceStageRecs !== []) {
            end($workspaceStageRecs);
            while (key($workspaceStageRecs) !== null) {
                $workspaceStageRec = current($workspaceStageRecs);
                if ($workspaceStageRec['uid'] == $stageId) {
                    $prevStage = prev($workspaceStageRecs);
                    break;
                }
                prev($workspaceStageRecs);
            }
        }
 
        return $prevStage;
    }
 
    protected function ‪getPrevStages(array &$prevStageArray, int $stageId): array
    {
        // Current stage is "Editing" - there is no prev stage
        if ($stageId === self::STAGE_EDIT_ID) {
            return $prevStageArray;
        }
        $prevStageRecord = $this->‪getPrevStage($stageId);
        if (!empty($prevStageRecord) && is_array($prevStageRecord)) {
            // Check if the user has the permission to switch to that stage
            // If this prev stage record is the first previous stage before the current
            // the user has always the needed permission
            if ($this->‪isStageAllowedForUser($stageId)) {
                $prevStageArray[] = $prevStageRecord;
                $prevStageArray = $this->‪getPrevStages($prevStageArray, $prevStageRecord['uid']);
            }
        }
        return $prevStageArray;
    }
 
    public function ‪getResponsibleBeUser(‪StageRecord|int $stageRecord, bool $selectDefaultUserField = false): array
    {
        if (!$stageRecord instanceof ‪StageRecord) {
            $stageRecord = $this->‪getWorkspaceRecord()->getStage($stageRecord);
        }
 
        if (!$selectDefaultUserField) {
            $backendUserIds = $stageRecord->getAllRecipients();
        } else {
            $backendUserIds = $stageRecord->getDefaultRecipients();
        }
 
        $userRecords = $this->‪getBackendUsers($backendUserIds);
        $recipientArray = [];
        foreach ($userRecords as $userUid => $userRecord) {
            $recipientArray[$userUid] = $userRecord;
        }
        return $recipientArray;
    }
 
    public function ‪resolveBackendUserIds(string $backendUserGroupList): array
    {
        $elements = ‪GeneralUtility::trimExplode(',', $backendUserGroupList, true);
        $backendUserIds = [];
        $backendGroupIds = [];
 
        foreach ($elements as $element) {
            if (str_starts_with($element, 'be_users_')) {
                // Current value is a uid of a be_user record
                $backendUserIds[] = str_replace('be_users_', '', $element);
            } elseif (str_starts_with($element, 'be_groups_')) {
                $backendGroupIds[] = (int)str_replace('be_groups_', '', $element);
            } elseif ((int)$element) {
                $backendUserIds[] = (int)$element;
            }
        }
 
        if (!empty($backendGroupIds)) {
            $groupResolver = GeneralUtility::makeInstance(GroupResolver::class);
            $backendUsersInGroups = $groupResolver->findAllUsersInGroups($backendGroupIds, 'be_groups', 'be_users');
            foreach ($backendUsersInGroups as $backendUsers) {
                $backendUserIds[] = (int)$backendUsers['uid'];
            }
        }
 
        return array_unique($backendUserIds);
    }
 
    public function ‪getBackendUsers(array $backendUserIds): array
    {
        if ($backendUserIds === []) {
            return [];
        }
        $backendUserList = implode(',', ‪GeneralUtility::intExplode(',', implode(',', $backendUserIds)));
        return BackendUtility::getUserNames(
            'username, uid, email, realName, lang, uc',
            'AND uid IN (' . $backendUserList . ')' . BackendUtility::BEenableFields('be_users')
        );
    }
 
    public function ‪getPreselectedRecipients(‪StageRecord $stageRecord): array
    {
        if ($stageRecord->‪areEditorsPreselected()) {
            return array_merge(
                $stageRecord->‪getPreselectedRecipients(),
                $this->getRecordService()->getCreateUserIds()
            );
        }
        return $stageRecord->‪getPreselectedRecipients();
    }
 
    protected function ‪getWorkspaceRecord(): ‪WorkspaceRecord
    {
        return ‪WorkspaceRecord::get($this->‪getWorkspaceId());
    }
 
    public function ‪getPropertyOfCurrentWorkspaceStage(int $stageId, string $property): ?string
    {
        $result = null;
        $workspaceStage = BackendUtility::getRecord(self::TABLE_STAGE, $stageId);
        if (is_array($workspaceStage) && isset($workspaceStage[$property])) {
            $result = $workspaceStage[$property];
        }
        return $result;
    }
 
    public function ‪getPositionOfCurrentStage(int $stageId): array
    {
        $stagesOfWS = $this->‪getAllStagesOfWorkspace();
        $countOfStages = count($stagesOfWS);
        switch ($stageId) {
            case ‪self::STAGE_PUBLISH_ID:
                $position = $countOfStages;
                break;
            case ‪self::STAGE_EDIT_ID:
                $position = 1;
                break;
            default:
                $position = 1;
                foreach ($stagesOfWS as $stageInfoArray) {
                    $position++;
                    if ($stageId === (int)$stageInfoArray['uid']) {
                        break;
                    }
                }
        }
        return ['position' => $position, 'count' => $countOfStages];
    }
 
    public function ‪isPrevStageAllowedForUser(int $stageId): bool
    {
        $isAllowed = false;
        try {
            $prevStage = $this->‪getPrevStage($stageId);
            // if there's no prev-stage the stageIds match,
            // otherwise we've to check if the user is permitted to use the stage
            if (!empty($prevStage) && $prevStage['uid'] != $stageId) {
                // if the current stage is allowed for the user, the user is also allowed to send to prev
                $isAllowed = $this->‪isStageAllowedForUser($stageId);
            }
        } catch (\Exception $e) {
        }
        return $isAllowed;
    }
 
    public function ‪isNextStageAllowedForUser(int $stageId): bool
    {
        $isAllowed = false;
        try {
            $nextStage = $this->‪getNextStage($stageId);
            // if there's no next-stage the stageIds match,
            // otherwise we've to check if the user is permitted to use the stage
            if (!empty($nextStage) && $nextStage['uid'] != $stageId) {
                // if the current stage is allowed for the user, the user is also allowed to send to next
                $isAllowed = $this->‪isStageAllowedForUser($stageId);
            }
        } catch (\Exception $e) {
        }
        return $isAllowed;
    }
 
    protected function ‪isStageAllowedForUser(int $stageId): bool
    {
        $cacheKey = $this->‪getWorkspaceId() . '_' . $stageId;
        if (isset($this->workspaceStageAllowedCache[$cacheKey])) {
            return $this->workspaceStageAllowedCache[$cacheKey];
        }
        $isAllowed = $this->‪getBackendUser()->workspaceCheckStageForCurrent($stageId);
        $this->workspaceStageAllowedCache[$cacheKey] = $isAllowed;
        return $isAllowed;
    }
 
    public function ‪isValid(int $stageId): bool
    {
        $isValid = false;
        $stages = $this->‪getAllStagesOfWorkspace();
        foreach ($stages as $stage) {
            if ($stage['uid'] == $stageId) {
                $isValid = true;
                break;
            }
        }
        return $isValid;
    }
 
    public function ‪getRecordService(): ‪RecordService
    {
        if (!isset($this->recordService)) {
            $this->recordService = GeneralUtility::makeInstance(RecordService::class);
        }
        return ‪$this->recordService;
    }
 
    protected function ‪getBackendUser(): ‪BackendUserAuthentication
    {
        return ‪$GLOBALS['BE_USER'];
    }
 
    protected function ‪getLanguageService(): ?‪LanguageService
    {
        return ‪$GLOBALS['LANG'] ?? null;
    }
}