BackendUserAuthentication.php

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<?php
 
/*
 * 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\Core\Authentication;
 
use ‪TYPO3\CMS\Backend\Configuration\TypoScript\ConditionMatching\ConditionMatcher;
use TYPO3\CMS\Backend\Utility\BackendUtility;
use ‪TYPO3\CMS\Core\Cache\CacheManager;
use ‪TYPO3\CMS\Core\Core\Environment;
use ‪TYPO3\CMS\Core\Database\Connection;
use ‪TYPO3\CMS\Core\Database\ConnectionPool;
use ‪TYPO3\CMS\Core\Database\Query\Expression\ExpressionBuilder;
use ‪TYPO3\CMS\Core\Database\Query\QueryHelper;
use ‪TYPO3\CMS\Core\Database\Query\Restriction\DeletedRestriction;
use ‪TYPO3\CMS\Core\Database\Query\Restriction\HiddenRestriction;
use ‪TYPO3\CMS\Core\Database\Query\Restriction\RootLevelRestriction;
use ‪TYPO3\CMS\Core\Database\Query\Restriction\WorkspaceRestriction;
use ‪TYPO3\CMS\Core\FormProtection\FormProtectionFactory;
use ‪TYPO3\CMS\Core\Http\ImmediateResponseException;
use ‪TYPO3\CMS\Core\Http\RedirectResponse;
use ‪TYPO3\CMS\Core\Resource\Exception;
use ‪TYPO3\CMS\Core\Resource\Exception\FolderDoesNotExistException;
use ‪TYPO3\CMS\Core\Resource\Filter\FileNameFilter;
use ‪TYPO3\CMS\Core\Resource\Folder;
use ‪TYPO3\CMS\Core\Resource\ResourceFactory;
use ‪TYPO3\CMS\Core\Resource\ResourceStorage;
use ‪TYPO3\CMS\Core\Resource\StorageRepository;
use ‪TYPO3\CMS\Core\SysLog\Action as ‪SystemLogGenericAction;
use ‪TYPO3\CMS\Core\SysLog\Error as SystemLogErrorClassification;
use ‪TYPO3\CMS\Core\SysLog\Type;
use ‪TYPO3\CMS\Core\SysLog\Type as SystemLogType;
use ‪TYPO3\CMS\Core\Type\Bitmask\BackendGroupMountOption;
use ‪TYPO3\CMS\Core\Type\Bitmask\JsConfirmation;
use ‪TYPO3\CMS\Core\Type\Bitmask\Permission;
use ‪TYPO3\CMS\Core\Type\Exception\InvalidEnumerationValueException;
use ‪TYPO3\CMS\Core\TypoScript\Parser\TypoScriptParser;
use ‪TYPO3\CMS\Core\Utility\ExtensionManagementUtility;
use ‪TYPO3\CMS\Core\Utility\GeneralUtility;
use ‪TYPO3\CMS\Core\Utility\StringUtility;
use TYPO3\CMS\Install\Service\SessionService;
 
class ‪BackendUserAuthentication extends ‪AbstractUserAuthentication
{
    public const ‪ROLE_SYSTEMMAINTAINER = 'systemMaintainer';
 
    public ‪$usergroup_column = 'usergroup';
 
    public ‪$usergroup_table = 'be_groups';
 
    public ‪$groupData = [
        'allowed_languages' => '',
        'tables_select' => '',
        'tables_modify' => '',
        'pagetypes_select' => '',
        'non_exclude_fields' => '',
        'explicit_allowdeny' => '',
        'custom_options' => '',
        'file_permissions' => '',
    ];
 
    public ‪$userGroupsUID = [];
 
    public ‪$workspace = -99;
 
    public ‪$workspaceRec = [];
 
    protected ‪$userTS = [];
 
    protected ‪$userTSUpdated = false;
 
    public ‪$errorMsg = '';
 
    protected ‪$checkWorkspaceCurrent_cache;
 
    protected ‪$fileStorages;
 
    protected ‪$filePermissions;
 
    public ‪$user_table = 'be_users';
 
    public ‪$username_column = 'username';
 
    public ‪$userident_column = 'password';
 
    public ‪$userid_column = 'uid';
 
    public ‪$lastLogin_column = 'lastlogin';
 
    public ‪$enablecolumns = [
        'rootLevel' => 1,
        'deleted' => 'deleted',
        'disabled' => 'disable',
        'starttime' => 'starttime',
        'endtime' => 'endtime',
    ];
 
    public ‪$formfield_uname = 'username';
 
    public ‪$formfield_uident = 'userident';
 
    public ‪$formfield_status = 'login_status';
 
    public ‪$writeStdLog = true;
 
    public ‪$writeAttemptLog = true;
 
    public ‪$firstMainGroup = 0;
 
    public ‪$uc;
 
    public ‪$uc_default = [
        'interfaceSetup' => '',
        // serialized content that is used to store interface pane and menu positions. Set by the logout.php-script
        'moduleData' => [],
        // user-data for the modules
        'emailMeAtLogin' => 0,
        'titleLen' => 50,
        'edit_RTE' => '1',
        'edit_docModuleUpload' => '1',
        'resizeTextareas_MaxHeight' => 500,
    ];
 
    public ‪$loginType = 'BE';
 
    public function ‪__construct()
    {
        $this->name = ‪self::getCookieName();
        parent::__construct();
    }
 
    public function ‪isAdmin()
    {
        return is_array($this->user) && (($this->user['admin'] ?? 0) & 1) == 1;
    }
 
    public function ‪isMemberOfGroup($groupId)
    {
        $groupId = (int)$groupId;
        if (!empty($this->userGroupsUID) && $groupId) {
            return in_array($groupId, $this->userGroupsUID, true);
        }
        return false;
    }
 
    public function ‪doesUserHaveAccess($row, $perms)
    {
        $userPerms = $this->‪calcPerms($row);
        return ($userPerms & $perms) == $perms;
    }
 
    public function ‪isInWebMount($idOrRow, $readPerms = '', $exitOnError = null)
    {
        if ($exitOnError !== null) {
            trigger_error('Calling BackendUserAuthentication->isInWebMount() with the third argument $exitOnError will have no effect anymore in TYPO3 v12.0.', E_USER_DEPRECATED);
        } else {
            $exitOnError = 0;
        }
        if ($this->‪isAdmin()) {
            return 1;
        }
        $checkRec = [];
        $fetchPageFromDatabase = true;
        if (is_array($idOrRow)) {
            if (!isset($idOrRow['uid'])) {
                throw new \RuntimeException('The given page record is invalid. Missing uid.', 1578950324);
            }
            $checkRec = $idOrRow;
            $id = (int)$idOrRow['uid'];
            // ensure the required fields are present on the record
            if (isset($checkRec['t3ver_oid'], $checkRec[‪$GLOBALS['TCA']['pages']['ctrl']['languageField']], $checkRec[‪$GLOBALS['TCA']['pages']['ctrl']['transOrigPointerField']])) {
                $fetchPageFromDatabase = false;
            }
        } else {
            $id = (int)$idOrRow;
        }
        if ($fetchPageFromDatabase) {
            // Check if input id is an offline version page in which case we will map id to the online version:
            $checkRec = BackendUtility::getRecord(
                'pages',
                $id,
                't3ver_oid,'
                . ‪$GLOBALS['TCA']['pages']['ctrl']['transOrigPointerField'] . ','
                . ‪$GLOBALS['TCA']['pages']['ctrl']['languageField']
            );
        }
        if ((int)($checkRec['t3ver_oid'] ?? 0) > 0) {
            $id = (int)$checkRec['t3ver_oid'];
        }
        // if current rec is a translation then get uid from l10n_parent instead
        // because web mounts point to pages in default language and rootline returns uids of default languages
        if ((int)($checkRec[‪$GLOBALS['TCA']['pages']['ctrl']['languageField'] ?? null] ?? 0) !== 0
            && (int)($checkRec[‪$GLOBALS['TCA']['pages']['ctrl']['transOrigPointerField'] ?? null] ?? 0) !== 0
        ) {
            $id = (int)$checkRec[‪$GLOBALS['TCA']['pages']['ctrl']['transOrigPointerField']];
        }
        if (!$readPerms) {
            $readPerms = $this->‪getPagePermsClause(‪Permission::PAGE_SHOW);
        }
        if ($id > 0) {
            $wM = $this->‪returnWebmounts();
            $rL = BackendUtility::BEgetRootLine($id, ' AND ' . $readPerms, true);
            foreach ($rL as $v) {
                if ($v['uid'] && in_array($v['uid'], $wM)) {
                    return $v['uid'];
                }
            }
        }
        // @deprecated will be removed in TYPO3 v12.0.
        if ($exitOnError) {
            throw new \RuntimeException('Access Error: This page is not within your DB-mounts', 1294586445);
        }
        return null;
    }
 
    public function ‪modAccess($conf)
    {
        $moduleName = $conf['name'] ?? '';
        if (!BackendUtility::isModuleSetInTBE_MODULES($moduleName)) {
            throw new \RuntimeException('Fatal Error: This module "' . $moduleName . '" is not enabled in TBE_MODULES', 1294586446);
        }
        // Workspaces check:
        if (
            !empty($conf['workspaces'])
            && ‪ExtensionManagementUtility::isLoaded('workspaces')
            && ($this->workspace !== 0 || !GeneralUtility::inList($conf['workspaces'], 'online'))
            && ($this->workspace <= 0 || !GeneralUtility::inList($conf['workspaces'], 'custom'))
        ) {
            throw new \RuntimeException('Workspace Error: This module "' . $moduleName . '" is not available under the current workspace', 1294586447);
        }
        // Throws exception if conf[access] is set to system maintainer and the user is no system maintainer
        if (str_contains($conf['access'] ?? '', self::ROLE_SYSTEMMAINTAINER) && !$this->‪isSystemMaintainer()) {
            throw new \RuntimeException('This module "' . $moduleName . '" is only available as system maintainer', 1504804727);
        }
        // Returns TRUE if conf[access] is not set at all or if the user is admin
        if (!($conf['access'] ?? false) || $this->‪isAdmin()) {
            return true;
        }
        // If $conf['access'] is set but not with 'admin' then we return TRUE, if the module is found in the modList
        $acs = false;
        if ($moduleName && !str_contains($conf['access'] ?? '', 'admin')) {
            $acs = $this->‪check('modules', $moduleName);
        }
        if (!$acs) {
            throw new \RuntimeException('Access Error: You don\'t have access to this module.', 1294586448);
        }
        // User has access (Otherwise an exception would haven been thrown)
        return true;
    }
 
    public function ‪isSystemMaintainer(): bool
    {
        if (!$this->‪isAdmin()) {
            return false;
        }
 
        if (‪$GLOBALS['BE_USER']->‪getOriginalUserIdWhenInSwitchUserMode()) {
            return false;
        }
        if (‪Environment::getContext()->isDevelopment()) {
            return true;
        }
        $systemMaintainers = ‪$GLOBALS['TYPO3_CONF_VARS']['SYS']['systemMaintainers'] ?? [];
        $systemMaintainers = array_map('intval', $systemMaintainers);
        if (!empty($systemMaintainers)) {
            return in_array((int)$this->user['uid'], $systemMaintainers, true);
        }
        // No system maintainers set up yet, so any admin is allowed to access the modules
        // but explicitly no system maintainers allowed (empty string in TYPO3_CONF_VARS).
        // @todo: this needs to be adjusted once system maintainers can log into the install tool with their credentials
        if (isset(‪$GLOBALS['TYPO3_CONF_VARS']['SYS']['systemMaintainers'])
            && empty(‪$GLOBALS['TYPO3_CONF_VARS']['SYS']['systemMaintainers'])) {
            return false;
        }
        return true;
    }
 
    public function ‪getPagePermsClause($perms)
    {
        if (is_array($this->user)) {
            if ($this->‪isAdmin()) {
                return ' 1=1';
            }
            // Make sure it's integer.
            $perms = (int)$perms;
            $expressionBuilder = GeneralUtility::makeInstance(ConnectionPool::class)
                ->getQueryBuilderForTable('pages')
                ->expr();
 
            // User
            $constraint = $expressionBuilder->orX(
                $expressionBuilder->comparison(
                    $expressionBuilder->bitAnd('pages.perms_everybody', $perms),
                    ‪ExpressionBuilder::EQ,
                    $perms
                ),
                $expressionBuilder->andX(
                    $expressionBuilder->eq('pages.perms_userid', (int)$this->user['uid']),
                    $expressionBuilder->comparison(
                        $expressionBuilder->bitAnd('pages.perms_user', $perms),
                        ‪ExpressionBuilder::EQ,
                        $perms
                    )
                )
            );
 
            // Group (if any is set)
            if (!empty($this->userGroupsUID)) {
                $constraint->add(
                    $expressionBuilder->andX(
                        $expressionBuilder->in(
                            'pages.perms_groupid',
                            $this->userGroupsUID
                        ),
                        $expressionBuilder->comparison(
                            $expressionBuilder->bitAnd('pages.perms_group', $perms),
                            ‪ExpressionBuilder::EQ,
                            $perms
                        )
                    )
                );
            }
 
            $constraint = ' (' . (string)$constraint . ')';
 
            // ****************
            // getPagePermsClause-HOOK
            // ****************
            foreach (‪$GLOBALS['TYPO3_CONF_VARS']['SC_OPTIONS']['t3lib/class.t3lib_userauthgroup.php']['getPagePermsClause'] ?? [] as $_funcRef) {
                $_params = ['currentClause' => $constraint, 'perms' => $perms];
                $constraint = GeneralUtility::callUserFunction($_funcRef, $_params, $this);
            }
            return $constraint;
        }
        return ' 1=0';
    }
 
    public function ‪calcPerms($row)
    {
        // Return 31 for admin users.
        if ($this->‪isAdmin()) {
            return ‪Permission::ALL;
        }
        // Return 0 if page is not within the allowed web mount
        if (!$this->‪isInWebMount($row)) {
            return ‪Permission::NOTHING;
        }
        $out = ‪Permission::NOTHING;
        if (
            isset($row['perms_userid']) && isset($row['perms_user']) && isset($row['perms_groupid'])
            && isset($row['perms_group']) && isset($row['perms_everybody']) && !empty($this->userGroupsUID)
        ) {
            if ($this->user['uid'] == $row['perms_userid']) {
                $out |= $row['perms_user'];
            }
            if ($this->‪isMemberOfGroup($row['perms_groupid'])) {
                $out |= $row['perms_group'];
            }
            $out |= $row['perms_everybody'];
        }
        // ****************
        // CALCPERMS hook
        // ****************
        foreach (‪$GLOBALS['TYPO3_CONF_VARS']['SC_OPTIONS']['t3lib/class.t3lib_userauthgroup.php']['calcPerms'] ?? [] as $_funcRef) {
            $_params = [
                'row' => $row,
                'outputPermissions' => $out,
            ];
            $out = GeneralUtility::callUserFunction($_funcRef, $_params, $this);
        }
        return $out;
    }
 
    public function ‪isRTE(): bool
    {
        return (bool)($this->uc['edit_RTE'] ?? false);
    }
 
    public function ‪check($type, $value)
    {
        return isset($this->groupData[$type])
            && ($this->‪isAdmin() || GeneralUtility::inList($this->groupData[$type], $value));
    }
 
    public function ‪checkAuthMode($table, $field, $value, $authMode)
    {
        // Admin users can do anything:
        if ($this->‪isAdmin()) {
            return true;
        }
        // Allow all blank values:
        if ((string)$value === '') {
            return true;
        }
        // Allow dividers:
        if ($value === '--div--') {
            return true;
        }
        // Certain characters are not allowed in the value
        if (preg_match('/[:|,]/', $value)) {
            return false;
        }
        // Initialize:
        $testValue = $table . ':' . $field . ':' . $value;
        $out = true;
        // Checking value:
        switch ((string)$authMode) {
            case 'explicitAllow':
                if (!GeneralUtility::inList($this->groupData['explicit_allowdeny'], $testValue . ':ALLOW')) {
                    $out = false;
                }
                break;
            case 'explicitDeny':
                if (GeneralUtility::inList($this->groupData['explicit_allowdeny'], $testValue . ':DENY')) {
                    $out = false;
                }
                break;
            case 'individual':
                if (is_array(‪$GLOBALS['TCA'][$table]) && is_array(‪$GLOBALS['TCA'][$table]['columns'][$field])) {
                    $items = ‪$GLOBALS['TCA'][$table]['columns'][$field]['config']['items'];
                    if (is_array($items)) {
                        foreach ($items as $iCfg) {
                            if ((string)$iCfg[1] === (string)$value && ($iCfg[5] ?? '')) {
                                switch ((string)($iCfg[5] ?? '')) {
                                    case 'EXPL_ALLOW':
                                        if (!GeneralUtility::inList(
                                            $this->groupData['explicit_allowdeny'],
                                            $testValue . ':ALLOW'
                                        )) {
                                            $out = false;
                                        }
                                        break;
                                    case 'EXPL_DENY':
                                        if (GeneralUtility::inList($this->groupData['explicit_allowdeny'], $testValue . ':DENY')) {
                                            $out = false;
                                        }
                                        break;
                                }
                                break;
                            }
                        }
                    }
                }
                break;
        }
        return $out;
    }
 
    public function ‪checkLanguageAccess($langValue)
    {
        // The users language list must be non-blank - otherwise all languages are allowed.
        if (trim($this->groupData['allowed_languages']) !== '') {
            $langValue = (int)$langValue;
            // Language must either be explicitly allowed OR the lang Value be "-1" (all languages)
            if ($langValue != -1 && !$this->‪check('allowed_languages', (string)$langValue)) {
                return false;
            }
        }
        return true;
    }
 
    public function ‪checkFullLanguagesAccess($table, $record)
    {
        if (!$this->‪checkLanguageAccess(0)) {
            return false;
        }
 
        if (BackendUtility::isTableLocalizable($table)) {
            $pointerField = ‪$GLOBALS['TCA'][$table]['ctrl']['transOrigPointerField'];
            $pointerValue = $record[$pointerField] > 0 ? $record[$pointerField] : $record['uid'];
            $queryBuilder = GeneralUtility::makeInstance(ConnectionPool::class)->getQueryBuilderForTable($table);
            $queryBuilder->getRestrictions()
                ->removeAll()
                ->add(GeneralUtility::makeInstance(DeletedRestriction::class))
                ->add(GeneralUtility::makeInstance(WorkspaceRestriction::class, (int)$this->workspace));
            $recordLocalizations = $queryBuilder->select('*')
                ->from($table)
                ->where(
                    $queryBuilder->expr()->eq(
                        $pointerField,
                        $queryBuilder->createNamedParameter($pointerValue, ‪Connection::PARAM_INT)
                    )
                )
                ->executeQuery()
                ->fetchAllAssociative();
 
            foreach ($recordLocalizations as $recordLocalization) {
                if (!$this->‪checkLanguageAccess($recordLocalization[‪$GLOBALS['TCA'][$table]['ctrl']['languageField']])) {
                    return false;
                }
            }
        }
        return true;
    }
 
    public function ‪recordEditAccessInternals($table, $idOrRow, $newRecord = false, $deletedRecord = false, $checkFullLanguageAccess = false): bool
    {
        if (!isset(‪$GLOBALS['TCA'][$table])) {
            return false;
        }
        // Always return TRUE for Admin users.
        if ($this->‪isAdmin()) {
            return true;
        }
        // Fetching the record if the $idOrRow variable was not an array on input:
        if (!is_array($idOrRow)) {
            if ($deletedRecord) {
                $idOrRow = BackendUtility::getRecord($table, $idOrRow, '*', '', false);
            } else {
                $idOrRow = BackendUtility::getRecord($table, $idOrRow);
            }
            if (!is_array($idOrRow)) {
                $this->errorMsg = 'ERROR: Record could not be fetched.';
                return false;
            }
        }
        // Checking languages:
        if ($table === 'pages' && $checkFullLanguageAccess && !$this->‪checkFullLanguagesAccess($table, $idOrRow)) {
            return false;
        }
        if (‪$GLOBALS['TCA'][$table]['ctrl']['languageField'] ?? false) {
            // Language field must be found in input row - otherwise it does not make sense.
            if (isset($idOrRow[‪$GLOBALS['TCA'][$table]['ctrl']['languageField']])) {
                if (!$this->‪checkLanguageAccess($idOrRow[‪$GLOBALS['TCA'][$table]['ctrl']['languageField']])) {
                    $this->errorMsg = 'ERROR: Language was not allowed.';
                    return false;
                }
                if (
                    $checkFullLanguageAccess && $idOrRow[‪$GLOBALS['TCA'][$table]['ctrl']['languageField']] == 0
                    && !$this->‪checkFullLanguagesAccess($table, $idOrRow)
                ) {
                    $this->errorMsg = 'ERROR: Related/affected language was not allowed.';
                    return false;
                }
            } else {
                $this->errorMsg = 'ERROR: The "languageField" field named "'
                    . ‪$GLOBALS['TCA'][$table]['ctrl']['languageField'] . '" was not found in testing record!';
                return false;
            }
        }
        // Checking authMode fields:
        if (is_array(‪$GLOBALS['TCA'][$table]['columns'])) {
            foreach (‪$GLOBALS['TCA'][$table]['columns'] as $fieldName => $fieldValue) {
                if (isset($idOrRow[$fieldName])
                    && ($fieldValue['config']['type'] ?? '') === 'select'
                    && ($fieldValue['config']['authMode'] ?? false)
                    && ($fieldValue['config']['authMode_enforce'] ?? '') === 'strict'
                    && !$this->‪checkAuthMode($table, $fieldName, $idOrRow[$fieldName], $fieldValue['config']['authMode'])) {
                    $this->errorMsg = 'ERROR: authMode "' . $fieldValue['config']['authMode']
                            . '" failed for field "' . $fieldName . '" with value "'
                            . $idOrRow[$fieldName] . '" evaluated';
                    return false;
                }
            }
        }
        // Checking "editlock" feature (doesn't apply to new records)
        if (!$newRecord && (‪$GLOBALS['TCA'][$table]['ctrl']['editlock'] ?? false)) {
            if (isset($idOrRow[‪$GLOBALS['TCA'][$table]['ctrl']['editlock']])) {
                if ($idOrRow[‪$GLOBALS['TCA'][$table]['ctrl']['editlock']]) {
                    $this->errorMsg = 'ERROR: Record was locked for editing. Only admin users can change this state.';
                    return false;
                }
            } else {
                $this->errorMsg = 'ERROR: The "editLock" field named "' . ‪$GLOBALS['TCA'][$table]['ctrl']['editlock']
                    . '" was not found in testing record!';
                return false;
            }
        }
        // Checking record permissions
        // THIS is where we can include a check for "perms_" fields for other records than pages...
        // Process any hooks
        foreach (‪$GLOBALS['TYPO3_CONF_VARS']['SC_OPTIONS']['t3lib/class.t3lib_userauthgroup.php']['recordEditAccessInternals'] ?? [] as $funcRef) {
            $params = [
                'table' => $table,
                'idOrRow' => $idOrRow,
                'newRecord' => $newRecord,
            ];
            if (!GeneralUtility::callUserFunction($funcRef, $params, $this)) {
                return false;
            }
        }
        // Finally, return TRUE if all is well.
        return true;
    }
 
    public function ‪mayMakeShortcut()
    {
        return ($this->‪getTSConfig()['options.']['enableBookmarks'] ?? false)
            && !($this->‪getTSConfig()['options.']['mayNotCreateEditBookmarks'] ?? false);
    }
 
    public function ‪workspaceAllowsLiveEditingInTable(string $table): bool
    {
        // In live workspace the record can be added/modified
        if ($this->workspace === 0) {
            return true;
        }
        // Workspace setting allows to "live edit" records of tables without versioning
        if (($this->workspaceRec['live_edit'] ?? false)
            && !BackendUtility::isTableWorkspaceEnabled($table)
        ) {
            return true;
        }
        // Always for Live workspace AND if live-edit is enabled
        // and tables are completely without versioning it is ok as well.
        if (‪$GLOBALS['TCA'][$table]['ctrl']['versioningWS_alwaysAllowLiveEdit'] ?? false) {
            return true;
        }
        // If the answer is FALSE it means the only valid way to create or edit records by creating records in the workspace
        return false;
    }
 
    public function ‪workspaceCanCreateNewRecord(string $table): bool
    {
        // If LIVE records cannot be created due to workspace restrictions, prepare creation of placeholder-record
        if (!$this->‪workspaceAllowsLiveEditingInTable($table) && !BackendUtility::isTableWorkspaceEnabled($table)) {
            return false;
        }
        return true;
    }
 
    public function ‪workspaceCheckStageForCurrent($stage)
    {
        // Always allow for admins
        if ($this->‪isAdmin()) {
            return true;
        }
        // Always OK for live workspace
        if ($this->workspace === 0 || !‪ExtensionManagementUtility::isLoaded('workspaces')) {
            return true;
        }
        $stage = (int)$stage;
        $stat = $this->‪checkWorkspaceCurrent();
        $accessType = $stat['_ACCESS'];
        // Workspace owners are always allowed for stage change
        if ($accessType === 'owner') {
            return true;
        }
 
        // Check if custom staging is activated
        ‪$workspaceRec = BackendUtility::getRecord('sys_workspace', $stat['uid']);
        if (‪$workspaceRec['custom_stages'] > 0 && $stage !== 0 && $stage !== -10) {
            // Get custom stage record
            $workspaceStageRec = BackendUtility::getRecord('sys_workspace_stage', $stage);
            // Check if the user is responsible for the current stage
            if (
                $accessType === 'member'
                && GeneralUtility::inList($workspaceStageRec['responsible_persons'] ?? '', 'be_users_' . $this->user['uid'])
            ) {
                return true;
            }
            // Check if the user is in a group which is responsible for the current stage
            foreach ($this->userGroupsUID as $groupUid) {
                if (
                    $accessType === 'member'
                    && GeneralUtility::inList($workspaceStageRec['responsible_persons'] ?? '', 'be_groups_' . $groupUid)
                ) {
                    return true;
                }
            }
        } elseif ($stage === -10 || $stage === -20) {
            // Nobody is allowed to do that except the owner (which was checked above)
            return false;
        } elseif (
            $accessType === 'reviewer' && $stage <= 1
            || $accessType === 'member' && $stage <= 0
        ) {
            return true;
        }
        return false;
    }
 
    public function ‪workspacePublishAccess($wsid)
    {
        if ($this->‪isAdmin()) {
            return true;
        }
        $wsAccess = $this->‪checkWorkspace($wsid);
        // If no access to workspace, of course you cannot publish!
        if ($wsAccess === false) {
            return false;
        }
        if ((int)$wsAccess['uid'] === 0) {
            // If access to Live workspace, no problem.
            return true;
        }
        // Custom workspaces
        // 1. Owners can always publish
        if ($wsAccess['_ACCESS'] === 'owner') {
            return true;
        }
        // 2. User has access to online workspace which is OK as well as long as publishing
        // access is not limited by workspace option.
        return $this->‪checkWorkspace(0) && !($wsAccess['publish_access'] & 2);
    }
 
    public function ‪getTSConfig()
    {
        return ‪$this->userTS;
    }
 
    public function ‪returnWebmounts()
    {
        return (string)$this->groupData['webmounts'] != '' ? explode(',', $this->groupData['webmounts']) : [];
    }
 
    public function ‪setWebmounts(array $mountPointUids, $append = false)
    {
        if (empty($mountPointUids)) {
            return;
        }
        if ($append) {
            $currentWebMounts = ‪GeneralUtility::intExplode(',', $this->groupData['webmounts']);
            $mountPointUids = array_merge($currentWebMounts, $mountPointUids);
        }
        $this->groupData['webmounts'] = implode(',', array_unique($mountPointUids));
    }
 
    public function ‪initializeWebmountsForElementBrowser()
    {
        $alternativeWebmountPoint = (int)$this->‪getSessionData('pageTree_temporaryMountPoint');
        if ($alternativeWebmountPoint) {
            $alternativeWebmountPoint = ‪GeneralUtility::intExplode(',', (string)$alternativeWebmountPoint);
            $this->‪setWebmounts($alternativeWebmountPoint);
            return;
        }
 
        $alternativeWebmountPoints = trim($this->‪getTSConfig()['options.']['pageTree.']['altElementBrowserMountPoints'] ?? '');
        $appendAlternativeWebmountPoints = $this->‪getTSConfig()['options.']['pageTree.']['altElementBrowserMountPoints.']['append'] ?? '';
        if ($alternativeWebmountPoints) {
            $alternativeWebmountPoints = ‪GeneralUtility::intExplode(',', $alternativeWebmountPoints);
            $this->‪setWebmounts($alternativeWebmountPoints, $appendAlternativeWebmountPoints);
        }
    }
 
    public function ‪jsConfirmation($bitmask)
    {
        try {
            $alertPopupsSetting = trim((string)($this->‪getTSConfig()['options.']['alertPopups'] ?? ''));
            $alertPopup = ‪JsConfirmation::cast($alertPopupsSetting === '' ? null : (int)$alertPopupsSetting);
        } catch (InvalidEnumerationValueException $e) {
            $alertPopup = new JsConfirmation();
        }
 
        return ‪JsConfirmation::cast($bitmask)->matches($alertPopup);
    }
 
    public function ‪fetchGroupData()
    {
        if ($this->user['uid']) {
            // Get lists for the be_user record and set them as default/primary values.
            // Enabled Backend Modules
            $this->groupData['modules'] = $this->user['userMods'] ?? '';
            // Add available widgets
            $this->groupData['available_widgets'] = $this->user['available_widgets'] ?? '';
            // Add allowed mfa providers
            $this->groupData['mfa_providers'] = $this->user['mfa_providers'] ?? '';
            // Add Allowed Languages
            $this->groupData['allowed_languages'] = $this->user['allowed_languages'] ?? '';
            // Set user value for workspace permissions.
            $this->groupData['workspace_perms'] = $this->user['workspace_perms'] ?? 0;
            // Database mountpoints
            $this->groupData['webmounts'] = $this->user['db_mountpoints'] ?? '';
            // File mountpoints
            $this->groupData['filemounts'] = $this->user['file_mountpoints'] ?? '';
            // Fileoperation permissions
            $this->groupData['file_permissions'] = $this->user['file_permissions'] ?? '';
 
            // Get the groups and accumulate their permission settings
            $mountOptions = new BackendGroupMountOption((int)($this->user['options'] ?? 0));
            $groupResolver = GeneralUtility::makeInstance(GroupResolver::class);
            $resolvedGroups = $groupResolver->resolveGroupsForUser($this->user, $this->usergroup_table);
            foreach ($resolvedGroups as $groupInfo) {
                $groupInfo += [
                    'uid' => 0,
                    'db_mountpoints' => '',
                    'file_mountpoints' => '',
                    'groupMods' => '',
                    'availableWidgets' => '',
                    'mfa_providers' => '',
                    'tables_select' => '',
                    'tables_modify' => '',
                    'pagetypes_select' => '',
                    'non_exclude_fields' => '',
                    'explicit_allowdeny' => '',
                    'allowed_languages' => '',
                    'custom_options' => '',
                    'file_permissions' => '',
                    'workspace_perms' => 0, // Bitflag.
                ];
                // Add the group uid to internal arrays.
                $this->userGroupsUID[] = (int)$groupInfo['uid'];
                $this->userGroups[(int)$groupInfo['uid']] = $groupInfo;
                // Mount group database-mounts
                if ($mountOptions->shouldUserIncludePageMountsFromAssociatedGroups()) {
                    $this->groupData['webmounts'] .= ',' . $groupInfo['db_mountpoints'];
                }
                // Mount group file-mounts
                if ($mountOptions->shouldUserIncludeFileMountsFromAssociatedGroups()) {
                    $this->groupData['filemounts'] .= ',' . $groupInfo['file_mountpoints'];
                }
                // Gather permission detail fields
                $this->groupData['modules'] .= ',' . $groupInfo['groupMods'];
                $this->groupData['available_widgets'] .= ',' . $groupInfo['availableWidgets'];
                $this->groupData['mfa_providers'] .= ',' . $groupInfo['mfa_providers'];
                $this->groupData['tables_select'] .= ',' . $groupInfo['tables_select'];
                $this->groupData['tables_modify'] .= ',' . $groupInfo['tables_modify'];
                $this->groupData['pagetypes_select'] .= ',' . $groupInfo['pagetypes_select'];
                $this->groupData['non_exclude_fields'] .= ',' . $groupInfo['non_exclude_fields'];
                $this->groupData['explicit_allowdeny'] .= ',' . $groupInfo['explicit_allowdeny'];
                $this->groupData['allowed_languages'] .= ',' . $groupInfo['allowed_languages'];
                $this->groupData['custom_options'] .= ',' . $groupInfo['custom_options'];
                $this->groupData['file_permissions'] .= ',' . $groupInfo['file_permissions'];
                // Setting workspace permissions:
                $this->groupData['workspace_perms'] |= $groupInfo['workspace_perms'];
                if (!$this->firstMainGroup) {
                    $this->firstMainGroup = (int)$groupInfo['uid'];
                }
            }
 
            // Populating the $this->userGroupsUID -array with the groups in the order in which they were LAST included.!!
            // Finally this is the list of group_uid's in the order they are parsed (including subgroups!)
            // and without duplicates (duplicates are presented with their last entrance in the list,
            // which thus reflects the order of the TypoScript in TSconfig)
            $this->userGroupsUID = array_reverse(array_unique(array_reverse($this->userGroupsUID)));
 
            $this->‪prepareUserTsConfig();
 
            // Processing webmounts
            // Admin's always have the root mounted
            if ($this->‪isAdmin() && !($this->‪getTSConfig()['options.']['dontMountAdminMounts'] ?? false)) {
                $this->groupData['webmounts'] = '0,' . $this->groupData['webmounts'];
            }
            // The lists are cleaned for duplicates
            $this->groupData['webmounts'] = ‪StringUtility::uniqueList($this->groupData['webmounts'] ?? '');
            $this->groupData['pagetypes_select'] = ‪StringUtility::uniqueList($this->groupData['pagetypes_select'] ?? '');
            $this->groupData['tables_select'] = ‪StringUtility::uniqueList(($this->groupData['tables_modify'] ?? '') . ',' . ($this->groupData['tables_select'] ?? ''));
            $this->groupData['tables_modify'] = ‪StringUtility::uniqueList($this->groupData['tables_modify'] ?? '');
            $this->groupData['non_exclude_fields'] = ‪StringUtility::uniqueList($this->groupData['non_exclude_fields'] ?? '');
            $this->groupData['explicit_allowdeny'] = ‪StringUtility::uniqueList($this->groupData['explicit_allowdeny'] ?? '');
            $this->groupData['allowed_languages'] = ‪StringUtility::uniqueList($this->groupData['allowed_languages'] ?? '');
            $this->groupData['custom_options'] = ‪StringUtility::uniqueList($this->groupData['custom_options'] ?? '');
            $this->groupData['modules'] = ‪StringUtility::uniqueList($this->groupData['modules'] ?? '');
            $this->groupData['available_widgets'] = ‪StringUtility::uniqueList($this->groupData['available_widgets'] ?? '');
            $this->groupData['mfa_providers'] = ‪StringUtility::uniqueList($this->groupData['mfa_providers'] ?? '');
            $this->groupData['file_permissions'] = ‪StringUtility::uniqueList($this->groupData['file_permissions'] ?? '');
 
            // Check if the user access to all web mounts set
            if (!empty(trim($this->groupData['webmounts']))) {
                $validWebMounts = $this->‪filterValidWebMounts($this->groupData['webmounts']);
                $this->groupData['webmounts'] = implode(',', $validWebMounts);
            }
            // Setting up workspace situation (after webmounts are processed!):
            $this->‪workspaceInit();
        }
    }
 
    protected function ‪filterValidWebMounts(string $listOfWebMounts): array
    {
        // Checking read access to web mounts if there are mounts points (not empty string, false or 0)
        $allWebMounts = explode(',', $listOfWebMounts);
        // Selecting all web mounts with permission clause for reading
        $queryBuilder = GeneralUtility::makeInstance(ConnectionPool::class)->getQueryBuilderForTable('pages');
        $queryBuilder->getRestrictions()
            ->removeAll()
            ->add(GeneralUtility::makeInstance(DeletedRestriction::class));
 
        $readablePagesOfWebMounts = $queryBuilder->select('uid')
            ->from('pages')
            // @todo DOCTRINE: check how to make getPagePermsClause() portable
            ->where(
                $this->‪getPagePermsClause(‪Permission::PAGE_SHOW),
                $queryBuilder->expr()->in(
                    'uid',
                    $queryBuilder->createNamedParameter(
                        ‪GeneralUtility::intExplode(',', $listOfWebMounts),
                        Connection::PARAM_INT_ARRAY
                    )
                )
            )
            ->executeQuery()
            ->fetchAllAssociative();
        $readablePagesOfWebMounts = array_column(($readablePagesOfWebMounts ?: []), 'uid', 'uid');
        foreach ($allWebMounts as $key => $mountPointUid) {
            // If the mount ID is NOT found among selected pages, unset it:
            if ($mountPointUid > 0 && !isset($readablePagesOfWebMounts[$mountPointUid])) {
                unset($allWebMounts[$key]);
            }
        }
        return $allWebMounts;
    }
 
    protected function ‪prepareUserTsConfig(): void
    {
        $collectedUserTSconfig = [
            'default' => ‪$GLOBALS['TYPO3_CONF_VARS']['BE']['defaultUserTSconfig'],
        ];
        // Default TSconfig for admin-users
        if ($this->‪isAdmin()) {
            $collectedUserTSconfig[] = 'admPanel.enable.all = 1';
        }
        // Setting defaults for sys_note author / email
        $collectedUserTSconfig[] = '
TCAdefaults.sys_note.author = ' . $this->user['realName'] . '
TCAdefaults.sys_note.email = ' . $this->user['email'];
 
        // Loop through all groups and add their 'TSconfig' fields
        foreach ($this->userGroupsUID as $groupId) {
            $collectedUserTSconfig['group_' . $groupId] = $this->userGroups[$groupId]['TSconfig'] ?? '';
        }
 
        $collectedUserTSconfig[] = $this->user['TSconfig'];
        // Check external files
        $collectedUserTSconfig = ‪TypoScriptParser::checkIncludeLines_array($collectedUserTSconfig);
        // Imploding with "[global]" will make sure that non-ended confinements with braces are ignored.
        $userTS_text = implode("\n[GLOBAL]\n", $collectedUserTSconfig);
        // Parsing the user TSconfig (or getting from cache)
        $hash = md5('userTS:' . $userTS_text);
        $cache = GeneralUtility::makeInstance(CacheManager::class)->getCache('hash');
        if (!($this->userTS = $cache->get($hash))) {
            $parseObj = GeneralUtility::makeInstance(TypoScriptParser::class);
            $conditionMatcher = GeneralUtility::makeInstance(ConditionMatcher::class);
            $parseObj->parse($userTS_text, $conditionMatcher);
            $this->userTS = $parseObj->setup;
            $cache->set($hash, $this->userTS, ['UserTSconfig'], 0);
            // Ensure to update UC later
            $this->userTSUpdated = true;
        }
    }
 
    protected function ‪initializeFileStorages()
    {
        $this->fileStorages = [];
        $storageRepository = GeneralUtility::makeInstance(StorageRepository::class);
        // Admin users have all file storages visible, without any filters
        if ($this->‪isAdmin()) {
            $storageObjects = $storageRepository->findAll();
            foreach ($storageObjects as $storageObject) {
                $this->fileStorages[$storageObject->getUid()] = $storageObject;
            }
        } else {
            // Regular users only have storages that are defined in their filemounts
            // Permissions and file mounts for the storage are added in StoragePermissionAspect
            foreach ($this->‪getFileMountRecords() as $row) {
                if (!array_key_exists((int)$row['base'], $this->fileStorages)) {
                    $storageObject = $storageRepository->findByUid($row['base']);
                    if ($storageObject) {
                        $this->fileStorages[$storageObject->getUid()] = $storageObject;
                    }
                }
            }
        }
 
        // This has to be called always in order to set certain filters
        $this->‪evaluateUserSpecificFileFilterSettings();
    }
 
    public function ‪getCategoryMountPoints()
    {
        $categoryMountPoints = '';
 
        // Category mounts of the groups
        if (is_array($this->userGroups)) {
            foreach ($this->userGroups as $group) {
                if ($group['category_perms']) {
                    $categoryMountPoints .= ',' . $group['category_perms'];
                }
            }
        }
 
        // Category mounts of the user record
        if ($this->user['category_perms']) {
            $categoryMountPoints .= ',' . $this->user['category_perms'];
        }
 
        // Make the ids unique
        $categoryMountPoints = ‪GeneralUtility::trimExplode(',', $categoryMountPoints);
        $categoryMountPoints = array_filter($categoryMountPoints); // remove empty value
        $categoryMountPoints = array_unique($categoryMountPoints); // remove unique value
 
        return $categoryMountPoints;
    }
 
    public function ‪getFileMountRecords()
    {
        $runtimeCache = GeneralUtility::makeInstance(CacheManager::class)->getCache('runtime');
        $fileMountRecordCache = $runtimeCache->get('backendUserAuthenticationFileMountRecords') ?: [];
 
        if (!empty($fileMountRecordCache)) {
            return $fileMountRecordCache;
        }
 
        $connectionPool = GeneralUtility::makeInstance(ConnectionPool::class);
 
        // Processing file mounts (both from the user and the groups)
        $fileMounts = array_unique(‪GeneralUtility::intExplode(',', $this->groupData['filemounts'] ?? '', true));
 
        // Limit file mounts if set in workspace record
        if ($this->workspace > 0 && !empty($this->workspaceRec['file_mountpoints'])) {
            $workspaceFileMounts = ‪GeneralUtility::intExplode(',', $this->workspaceRec['file_mountpoints'], true);
            $fileMounts = array_intersect($fileMounts, $workspaceFileMounts);
        }
 
        if (!empty($fileMounts)) {
            $orderBy = ‪$GLOBALS['TCA']['sys_filemounts']['ctrl']['default_sortby'] ?? 'sorting';
 
            $queryBuilder = $connectionPool->getQueryBuilderForTable('sys_filemounts');
            $queryBuilder->getRestrictions()
                ->removeAll()
                ->add(GeneralUtility::makeInstance(DeletedRestriction::class))
                ->add(GeneralUtility::makeInstance(HiddenRestriction::class))
                ->add(GeneralUtility::makeInstance(RootLevelRestriction::class));
 
            $queryBuilder->select('*')
                ->from('sys_filemounts')
                ->where(
                    $queryBuilder->expr()->in('uid', $queryBuilder->createNamedParameter($fileMounts, Connection::PARAM_INT_ARRAY))
                );
 
            foreach (‪QueryHelper::parseOrderBy($orderBy) as $fieldAndDirection) {
                $queryBuilder->addOrderBy(...$fieldAndDirection);
            }
 
            $fileMountRecords = $queryBuilder->executeQuery()->fetchAllAssociative();
            if ($fileMountRecords !== false) {
                foreach ($fileMountRecords as $fileMount) {
                    $fileMountRecordCache[$fileMount['base'] . $fileMount['path']] = $fileMount;
                }
            }
        }
 
        // Read-only file mounts
        $readOnlyMountPoints = \trim($this->‪getTSConfig()['options.']['folderTree.']['altElementBrowserMountPoints'] ?? '');
        if ($readOnlyMountPoints) {
            // We cannot use the API here but need to fetch the default storage record directly
            // to not instantiate it (which directly applies mount points) before all mount points are resolved!
            $queryBuilder = $connectionPool->getQueryBuilderForTable('sys_file_storage');
            $defaultStorageRow = $queryBuilder->select('uid')
                ->from('sys_file_storage')
                ->where(
                    $queryBuilder->expr()->eq('is_default', $queryBuilder->createNamedParameter(1, ‪Connection::PARAM_INT))
                )
                ->setMaxResults(1)
                ->executeQuery()
                ->fetchAssociative();
 
            $readOnlyMountPointArray = ‪GeneralUtility::trimExplode(',', $readOnlyMountPoints);
            foreach ($readOnlyMountPointArray as $readOnlyMountPoint) {
                $readOnlyMountPointConfiguration = ‪GeneralUtility::trimExplode(':', $readOnlyMountPoint);
                if (count($readOnlyMountPointConfiguration) === 2) {
                    // A storage is passed in the configuration
                    $storageUid = (int)$readOnlyMountPointConfiguration[0];
                    $path = $readOnlyMountPointConfiguration[1];
                } else {
                    if (empty($defaultStorageRow)) {
                        throw new \RuntimeException('Read only mount points have been defined in User TsConfig without specific storage, but a default storage could not be resolved.', 1404472382);
                    }
                    // Backwards compatibility: If no storage is passed, we use the default storage
                    $storageUid = $defaultStorageRow['uid'];
                    $path = $readOnlyMountPointConfiguration[0];
                }
                $fileMountRecordCache[$storageUid . $path] = [
                    'base' => $storageUid,
                    'title' => $path,
                    'path' => $path,
                    'read_only' => true,
                ];
            }
        }
 
        // Personal or Group filemounts are not accessible if file mount list is set in workspace record
        if ($this->workspace <= 0 || empty($this->workspaceRec['file_mountpoints'])) {
            // If userHomePath is set, we attempt to mount it
            if (‪$GLOBALS['TYPO3_CONF_VARS']['BE']['userHomePath']) {
                [$userHomeStorageUid, $userHomeFilter] = explode(':', ‪$GLOBALS['TYPO3_CONF_VARS']['BE']['userHomePath'], 2);
                $userHomeStorageUid = (int)$userHomeStorageUid;
                $userHomeFilter = '/' . ltrim($userHomeFilter, '/');
                if ($userHomeStorageUid > 0) {
                    // Try and mount with [uid]_[username]
                    $path = $userHomeFilter . $this->user['uid'] . '_' . $this->user['username'] . ‪$GLOBALS['TYPO3_CONF_VARS']['BE']['userUploadDir'];
                    $fileMountRecordCache[$userHomeStorageUid . $path] = [
                        'base' => $userHomeStorageUid,
                        'title' => $this->user['username'],
                        'path' => $path,
                        'read_only' => false,
                        'user_mount' => true,
                    ];
                    // Try and mount with only [uid]
                    $path = $userHomeFilter . $this->user['uid'] . ‪$GLOBALS['TYPO3_CONF_VARS']['BE']['userUploadDir'];
                    $fileMountRecordCache[$userHomeStorageUid . $path] = [
                        'base' => $userHomeStorageUid,
                        'title' => $this->user['username'],
                        'path' => $path,
                        'read_only' => false,
                        'user_mount' => true,
                    ];
                }
            }
 
            // Mount group home-dirs
            $mountOptions = new BackendGroupMountOption((int)($this->user['options'] ?? 0));
            if (‪$GLOBALS['TYPO3_CONF_VARS']['BE']['groupHomePath'] !== '' && $mountOptions->shouldUserIncludeFileMountsFromAssociatedGroups()) {
                // If groupHomePath is set, we attempt to mount it
                [$groupHomeStorageUid, $groupHomeFilter] = explode(':', ‪$GLOBALS['TYPO3_CONF_VARS']['BE']['groupHomePath'], 2);
                $groupHomeStorageUid = (int)$groupHomeStorageUid;
                $groupHomeFilter = '/' . ltrim($groupHomeFilter, '/');
                if ($groupHomeStorageUid > 0) {
                    foreach ($this->userGroups as ‪$groupData) {
                        $path = $groupHomeFilter . ‪$groupData['uid'];
                        $fileMountRecordCache[$groupHomeStorageUid . $path] = [
                            'base' => $groupHomeStorageUid,
                            'title' => ‪$groupData['title'],
                            'path' => $path,
                            'read_only' => false,
                            'user_mount' => true,
                        ];
                    }
                }
            }
        }
 
        $runtimeCache->set('backendUserAuthenticationFileMountRecords', $fileMountRecordCache);
        return $fileMountRecordCache;
    }
 
    public function ‪getFileStorages()
    {
        // Initializing file mounts after the groups are fetched
        if ($this->fileStorages === null) {
            $this->‪initializeFileStorages();
        }
        return ‪$this->fileStorages;
    }
 
    public function ‪evaluateUserSpecificFileFilterSettings()
    {
        // Add the option for also displaying the non-hidden files
        if ($this->uc['showHiddenFilesAndFolders'] ?? false) {
            ‪FileNameFilter::setShowHiddenFilesAndFolders(true);
        }
    }
 
    public function ‪getFilePermissions()
    {
        if (!isset($this->filePermissions)) {
            ‪$filePermissions = [
                // File permissions
                'addFile' => false,
                'readFile' => false,
                'writeFile' => false,
                'copyFile' => false,
                'moveFile' => false,
                'renameFile' => false,
                'deleteFile' => false,
                // Folder permissions
                'addFolder' => false,
                'readFolder' => false,
                'writeFolder' => false,
                'copyFolder' => false,
                'moveFolder' => false,
                'renameFolder' => false,
                'deleteFolder' => false,
                'recursivedeleteFolder' => false,
            ];
            if ($this->‪isAdmin()) {
                ‪$filePermissions = array_map('is_bool', ‪$filePermissions);
            } else {
                $userGroupRecordPermissions = ‪GeneralUtility::trimExplode(',', $this->groupData['file_permissions'] ?? '', true);
                array_walk(
                    $userGroupRecordPermissions,
                    static function ($permission) use (&‪$filePermissions) {
                        ‪$filePermissions[$permission] = true;
                    }
                );
 
                // Finally overlay any userTSconfig
                $permissionsTsConfig = $this->‪getTSConfig()['permissions.']['file.']['default.'] ?? [];
                if (!empty($permissionsTsConfig)) {
                    array_walk(
                        $permissionsTsConfig,
                        static function ($value, $permission) use (&‪$filePermissions) {
                            ‪$filePermissions[$permission] = (bool)$value;
                        }
                    );
                }
            }
            $this->filePermissions = ‪$filePermissions;
        }
        return ‪$this->filePermissions;
    }
 
    public function ‪getFilePermissionsForStorage(ResourceStorage $storageObject)
    {
        $finalUserPermissions = $this->‪getFilePermissions();
        if (!$this->‪isAdmin()) {
            $storageFilePermissions = $this->‪getTSConfig()['permissions.']['file.']['storage.'][$storageObject->getUid() . '.'] ?? [];
            if (!empty($storageFilePermissions)) {
                array_walk(
                    $storageFilePermissions,
                    static function ($value, $permission) use (&$finalUserPermissions) {
                        $finalUserPermissions[$permission] = (bool)$value;
                    }
                );
            }
        }
        return $finalUserPermissions;
    }
 
    public function ‪getDefaultUploadFolder($pid = null, $table = null, $field = null)
    {
        $uploadFolder = $this->‪getTSConfig()['options.']['defaultUploadFolder'] ?? '';
        if ($uploadFolder) {
            try {
                $uploadFolder = GeneralUtility::makeInstance(ResourceFactory::class)->getFolderObjectFromCombinedIdentifier($uploadFolder);
            } catch (FolderDoesNotExistException $e) {
                $uploadFolder = null;
            }
        }
        if (empty($uploadFolder)) {
            foreach ($this->‪getFileStorages() as $storage) {
                if ($storage->isDefault() && $storage->isWritable()) {
                    try {
                        $uploadFolder = $storage->getDefaultFolder();
                        if ($uploadFolder->checkActionPermission('write')) {
                            break;
                        }
                        $uploadFolder = null;
                    } catch (Exception $folderAccessException) {
                        // If the folder is not accessible (no permissions / does not exist) we skip this one.
                    }
                    break;
                }
            }
            if (!$uploadFolder instanceof Folder) {
                foreach ($this->‪getFileStorages() as $storage) {
                    if ($storage->isWritable()) {
                        try {
                            $uploadFolder = $storage->getDefaultFolder();
                            if ($uploadFolder->checkActionPermission('write')) {
                                break;
                            }
                            $uploadFolder = null;
                        } catch (Exception $folderAccessException) {
                            // If the folder is not accessible (no permissions / does not exist) try the next one.
                        }
                    }
                }
            }
        }
 
        // HOOK: getDefaultUploadFolder
        foreach (‪$GLOBALS['TYPO3_CONF_VARS']['SC_OPTIONS']['t3lib/class.t3lib_userauthgroup.php']['getDefaultUploadFolder'] ?? [] as $_funcRef) {
            $_params = [
                'uploadFolder' => $uploadFolder,
                'pid' => $pid,
                'table' => $table,
                'field' => $field,
            ];
            $uploadFolder = GeneralUtility::callUserFunction($_funcRef, $_params, $this);
        }
 
        if ($uploadFolder instanceof Folder) {
            return $uploadFolder;
        }
        return false;
    }
 
    public function ‪getDefaultUploadTemporaryFolder()
    {
        $defaultTemporaryFolder = null;
        $defaultFolder = $this->‪getDefaultUploadFolder();
 
        if ($defaultFolder !== false) {
            $tempFolderName = '_temp_';
            $createFolder = !$defaultFolder->hasFolder($tempFolderName);
            if ($createFolder === true) {
                try {
                    $defaultTemporaryFolder = $defaultFolder->createFolder($tempFolderName);
                } catch (‪Exception $folderAccessException) {
                }
            } else {
                $defaultTemporaryFolder = $defaultFolder->getSubfolder($tempFolderName);
            }
        }
 
        return $defaultTemporaryFolder;
    }
 
    public function ‪workspaceInit()
    {
        // Initializing workspace by evaluating and setting the workspace, possibly updating it in the user record!
        $this->‪setWorkspace($this->user['workspace_id']);
        // Limiting the DB mountpoints if there any selected in the workspace record
        $this->‪initializeDbMountpointsInWorkspace();
        $allowed_languages = (string)($this->‪getTSConfig()['options.']['workspaces.']['allowed_languages.'][‪$this->workspace] ?? '');
        if ($allowed_languages !== '') {
            $this->groupData['allowed_languages'] = ‪StringUtility::uniqueList($allowed_languages);
        }
    }
 
    protected function ‪initializeDbMountpointsInWorkspace()
    {
        $dbMountpoints = trim($this->workspaceRec['db_mountpoints'] ?? '');
        if ($this->workspace > 0 && $dbMountpoints != '') {
            $filteredDbMountpoints = [];
            // Notice: We cannot call $this->getPagePermsClause(1);
            // as usual because the group-list is not available at this point.
            // But bypassing is fine because all we want here is check if the
            // workspace mounts are inside the current webmounts rootline.
            // The actual permission checking on page level is done elsewhere
            // as usual anyway before the page tree is rendered.
            $readPerms = '1=1';
            // Traverse mount points of the workspace, add them,
            // but make sure they match against the users' DB mounts
 
            $workspaceWebMounts = ‪GeneralUtility::intExplode(',', $dbMountpoints);
            $webMountsOfUser = ‪GeneralUtility::intExplode(',', $this->groupData['webmounts']);
            $webMountsOfUser = array_combine($webMountsOfUser, $webMountsOfUser) ?: [];
 
            $entryPointRootLineUids = [];
            foreach ($webMountsOfUser as $webMountPageId) {
                $rootLine = BackendUtility::BEgetRootLine($webMountPageId, '', true);
                $entryPointRootLineUids[$webMountPageId] = array_map('intval', array_column($rootLine, 'uid'));
            }
            foreach ($entryPointRootLineUids as $webMountOfUser => $uidsOfRootLine) {
                // Remove the DB mounts of the user if the DB mount is not in the list of
                // workspace mounts
                foreach ($workspaceWebMounts as $webmountOfWorkspace) {
                    // This workspace DB mount is somewhere in the rootline of the users' web mount,
                    // so this is "OK" to be included
                    if (in_array($webmountOfWorkspace, $uidsOfRootLine, true)) {
                        continue;
                    }
                    // Remove the user's DB Mount (possible via array_combine, see above)
                    unset($webMountsOfUser[$webMountOfUser]);
                }
            }
            $dbMountpoints = array_merge($workspaceWebMounts, $webMountsOfUser);
            $dbMountpoints = array_unique($dbMountpoints);
            foreach ($dbMountpoints as $mpId) {
                if ($this->‪isInWebMount($mpId, $readPerms)) {
                    $filteredDbMountpoints[] = $mpId;
                }
            }
            // Re-insert webmounts
            $this->groupData['webmounts'] = implode(',', $filteredDbMountpoints);
        }
    }
 
    public function ‪checkWorkspace($wsRec, ‪$fields = '*')
    {
        $retVal = false;
        // If not array, look up workspace record:
        if (!is_array($wsRec)) {
            switch ((string)$wsRec) {
                case '0':
                    $wsRec = ['uid' => $wsRec];
                    break;
                default:
                    if (‪ExtensionManagementUtility::isLoaded('workspaces')) {
                        $queryBuilder = GeneralUtility::makeInstance(ConnectionPool::class)->getQueryBuilderForTable('sys_workspace');
                        $queryBuilder->getRestrictions()->add(GeneralUtility::makeInstance(RootLevelRestriction::class));
                        $wsRec = $queryBuilder->select(...‪GeneralUtility::trimExplode(',', ‪$fields))
                            ->from('sys_workspace')
                            ->where($queryBuilder->expr()->eq(
                                'uid',
                                $queryBuilder->createNamedParameter($wsRec, ‪Connection::PARAM_INT)
                            ))
                            ->orderBy('title')
                            ->setMaxResults(1)
                            ->executeQuery()
                            ->fetchAssociative();
                    }
            }
        }
        // If wsRec is set to an array, evaluate it:
        if (is_array($wsRec)) {
            if ($this->‪isAdmin()) {
                return array_merge($wsRec, ['_ACCESS' => 'admin']);
            }
            switch ((string)$wsRec['uid']) {
                case '0':
                    $retVal = $this->‪hasEditAccessToLiveWorkspace()
                        ? array_merge($wsRec, ['_ACCESS' => 'online'])
                        : false;
                    break;
                default:
                    // Checking if the guy is admin:
                    if (GeneralUtility::inList($wsRec['adminusers'], 'be_users_' . $this->user['uid'])) {
                        return array_merge($wsRec, ['_ACCESS' => 'owner']);
                    }
                    // Checking if he is owner through a user group of his:
                    foreach ($this->userGroupsUID as $groupUid) {
                        if (GeneralUtility::inList($wsRec['adminusers'], 'be_groups_' . $groupUid)) {
                            return array_merge($wsRec, ['_ACCESS' => 'owner']);
                        }
                    }
                    // Checking if he is member as user:
                    if (GeneralUtility::inList($wsRec['members'], 'be_users_' . $this->user['uid'])) {
                        return array_merge($wsRec, ['_ACCESS' => 'member']);
                    }
                    // Checking if he is member through a user group of his:
                    foreach ($this->userGroupsUID as $groupUid) {
                        if (GeneralUtility::inList($wsRec['members'], 'be_groups_' . $groupUid)) {
                            return array_merge($wsRec, ['_ACCESS' => 'member']);
                        }
                    }
            }
        }
        return $retVal;
    }
 
    protected function ‪hasEditAccessToLiveWorkspace(): bool
    {
        return (bool)(($this->groupData['workspace_perms'] ?? 0) & 1);
    }
 
    public function ‪checkWorkspaceCurrent()
    {
        if (!isset($this->checkWorkspaceCurrent_cache)) {
            $this->checkWorkspaceCurrent_cache = $this->‪checkWorkspace($this->workspace);
        }
        return ‪$this->checkWorkspaceCurrent_cache;
    }
 
    public function ‪setWorkspace($workspaceId)
    {
        // Check workspace validity and if not found, revert to default workspace.
        if (!$this->‪setTemporaryWorkspace($workspaceId)) {
            $this->‪setDefaultWorkspace();
        }
        // Unset access cache:
        $this->checkWorkspaceCurrent_cache = null;
        // If ID is different from the stored one, change it:
        if ((int)$this->workspace !== (int)$this->user['workspace_id']) {
            $this->user['workspace_id'] = ‪$this->workspace;
            GeneralUtility::makeInstance(ConnectionPool::class)->getConnectionForTable('be_users')->update(
                'be_users',
                ['workspace_id' => $this->user['workspace_id']],
                ['uid' => (int)$this->user['uid']]
            );
            $this->‪writelog(SystemLogType::EXTENSION, SystemLogGenericAction::UNDEFINED, SystemLogErrorClassification::MESSAGE, 0, 'User changed workspace to "{workspace}"', ['workspace' => $this->workspace]);
        }
    }
 
    public function ‪setTemporaryWorkspace($workspaceId)
    {
        $result = false;
        $workspaceRecord = $this->‪checkWorkspace($workspaceId);
 
        if ($workspaceRecord) {
            $this->workspaceRec = $workspaceRecord;
            $this->workspace = (int)$workspaceId;
            $result = true;
        }
 
        return $result;
    }
 
    public function ‪setDefaultWorkspace()
    {
        $this->workspace = (int)$this->‪getDefaultWorkspace();
        $this->workspaceRec = $this->‪checkWorkspace($this->workspace);
    }
 
    public function ‪getDefaultWorkspace()
    {
        if (!‪ExtensionManagementUtility::isLoaded('workspaces')) {
            return 0;
        }
        // Online is default
        if ($this->‪checkWorkspace(0)) {
            return 0;
        }
        // Otherwise -99 is the fallback
        $defaultWorkspace = -99;
        // Traverse all workspaces
        $queryBuilder = GeneralUtility::makeInstance(ConnectionPool::class)->getQueryBuilderForTable('sys_workspace');
        $queryBuilder->getRestrictions()->add(GeneralUtility::makeInstance(RootLevelRestriction::class));
        $result = $queryBuilder->select('*')
            ->from('sys_workspace')
            ->orderBy('title')
            ->executeQuery();
        while ($workspaceRecord = $result->fetchAssociative()) {
            if ($this->‪checkWorkspace($workspaceRecord)) {
                $defaultWorkspace = (int)$workspaceRecord['uid'];
                break;
            }
        }
        return $defaultWorkspace;
    }
 
    public function ‪writelog($type, $action, $error, $details_nr, $details, $data, $tablename = '', $recuid = '', $recpid = '', $event_pid = -1, $NEWid = '', $userId = 0)
    {
        if (!$userId && !empty($this->user['uid'])) {
            $userId = $this->user['uid'];
        }
 
        if ($backuserid = $this->‪getOriginalUserIdWhenInSwitchUserMode()) {
            if (empty($data)) {
                $data = [];
            }
            $data['originalUser'] = $backuserid;
        }
 
        // @todo Remove this once this method is properly typed.
        $type = (int)$type;
 
        ‪$fields = [
            'userid' => (int)$userId,
            'type' => $type,
            'channel' => ‪Type::toChannel($type),
            'level' => ‪Type::toLevel($type),
            'action' => (int)$action,
            'error' => (int)$error,
            'details_nr' => (int)$details_nr,
            'details' => $details,
            'log_data' => serialize($data),
            'tablename' => $tablename,
            'recuid' => (int)$recuid,
            'IP' => (string)GeneralUtility::getIndpEnv('REMOTE_ADDR'),
            'tstamp' => ‪$GLOBALS['EXEC_TIME'] ?? time(),
            'event_pid' => (int)$event_pid,
            'NEWid' => $NEWid,
            'workspace' => $this->workspace,
        ];
 
        $connection = GeneralUtility::makeInstance(ConnectionPool::class)->getConnectionForTable('sys_log');
        $connection->insert(
            'sys_log',
            ‪$fields,
            [
                ‪Connection::PARAM_INT,
                ‪Connection::PARAM_INT,
                ‪Connection::PARAM_STR,
                ‪Connection::PARAM_STR,
                ‪Connection::PARAM_INT,
                ‪Connection::PARAM_INT,
                ‪Connection::PARAM_INT,
                ‪Connection::PARAM_STR,
                ‪Connection::PARAM_STR,
                ‪Connection::PARAM_STR,
                ‪Connection::PARAM_INT,
                ‪Connection::PARAM_STR,
                ‪Connection::PARAM_INT,
                ‪Connection::PARAM_INT,
                ‪Connection::PARAM_STR,
                ‪Connection::PARAM_STR,
            ]
        );
 
        return (int)$connection->lastInsertId('sys_log');
    }
 
    public static function ‪getCookieName()
    {
        $configuredCookieName = trim(‪$GLOBALS['TYPO3_CONF_VARS']['BE']['cookieName']);
        if (empty($configuredCookieName)) {
            $configuredCookieName = 'be_typo_user';
        }
        return $configuredCookieName;
    }
 
    public function ‪backendCheckLogin($proceedIfNoUserIsLoggedIn = null)
    {
        if (empty($this->user['uid'])) {
            if ($proceedIfNoUserIsLoggedIn === null) {
                $proceedIfNoUserIsLoggedIn = false;
            } else {
                trigger_error('Calling $BE_USER->backendCheckLogin() with a first input argument will not work anymore in TYPO3 v12.0.', E_USER_DEPRECATED);
            }
            // @todo: throw a proper AccessDeniedException in TYPO3 v12.0. and handle this functionality in the calling code
            if ($proceedIfNoUserIsLoggedIn === false) {
                $url = ‪$GLOBALS['TYPO3_REQUEST']->getAttribute('normalizedParams')->getSiteUrl() . TYPO3_mainDir;
                throw new ImmediateResponseException(new RedirectResponse($url, 303), 1607271747);
            }
        } elseif ($this->‪isUserAllowedToLogin()) {
            $this->‪initializeBackendLogin();
        } else {
            // @todo: throw a proper AccessDeniedException in TYPO3 v12.0.
            throw new \RuntimeException('Login Error: TYPO3 is in maintenance mode at the moment. Only administrators are allowed access.', 1294585860);
        }
    }
 
    public function ‪initializeBackendLogin(): void
    {
        // The groups are fetched and ready for permission checking in this initialization.
        // Tables.php must be read before this because stuff like the modules has impact in this
        $this->‪fetchGroupData();
        // Setting the UC array. It's needed with fetchGroupData first, due to default/overriding of values.
        $this->‪backendSetUC();
        if ($this->loginSessionStarted) {
            // Also, if there is a recovery link set, unset it now
            // this will be moved into its own Event at a later stage.
            // If a token was set previously, this is now unset, as it was now possible to log-in
            if ($this->user['password_reset_token'] ?? '') {
                GeneralUtility::makeInstance(ConnectionPool::class)
                    ->getConnectionForTable($this->user_table)
                    ->update($this->user_table, ['password_reset_token' => ''], ['uid' => $this->user['uid']]);
            }
            // Process hooks
            $hooks = ‪$GLOBALS['TYPO3_CONF_VARS']['SC_OPTIONS']['t3lib/class.t3lib_userauthgroup.php']['backendUserLogin'];
            foreach ($hooks ?? [] as $_funcRef) {
                $_params = ['user' => ‪$this->user];
                GeneralUtility::callUserFunction($_funcRef, $_params, $this);
            }
        }
    }
 
    public function ‪backendSetUC()
    {
        // UC - user configuration is a serialized array inside the user object
        // If there is a saved uc we implement that instead of the default one.
        $this->‪unpack_uc();
        // Setting defaults if uc is empty
        $updated = false;
        if (!is_array($this->uc)) {
            $this->uc = array_merge(
                $this->uc_default,
                (array)‪$GLOBALS['TYPO3_CONF_VARS']['BE']['defaultUC'],
                GeneralUtility::removeDotsFromTS((array)($this->‪getTSConfig()['setup.']['default.'] ?? []))
            );
            $this->‪overrideUC();
            $updated = true;
        }
        // If TSconfig is updated, update the defaultUC.
        if ($this->userTSUpdated) {
            $this->‪overrideUC();
            $updated = true;
        }
        // Setting default lang from be_user record, also update for backwards-compatibility
        // @deprecated This will be removed in TYPO3 v12
        if (!isset($this->uc['lang']) || $this->uc['lang'] !== $this->user['lang']) {
            $this->uc['lang'] = $this->user['lang'];
            $updated = true;
        }
        // Setting the time of the first login:
        if (!isset($this->uc['firstLoginTimeStamp'])) {
            $this->uc['firstLoginTimeStamp'] = ‪$GLOBALS['EXEC_TIME'];
            $updated = true;
        }
        // Saving if updated.
        if ($updated) {
            $this->‪writeUC();
        }
    }
 
    public function ‪overrideUC()
    {
        $this->uc = array_merge((array)$this->uc, (array)($this->‪getTSConfig()['setup.']['override.'] ?? []));
    }
 
    public function ‪resetUC()
    {
        $this->user['uc'] = '';
        $this->uc = '';
        $this->‪backendSetUC();
    }
 
    public function ‪isUserAllowedToLogin()
    {
        $isUserAllowedToLogin = false;
        $adminOnlyMode = (int)‪$GLOBALS['TYPO3_CONF_VARS']['BE']['adminOnly'];
        // Backend user is allowed if adminOnly is not set or user is an admin:
        if (!$adminOnlyMode || $this->‪isAdmin()) {
            $isUserAllowedToLogin = true;
        } elseif ($backUserId = $this->‪getOriginalUserIdWhenInSwitchUserMode()) {
            $queryBuilder = GeneralUtility::makeInstance(ConnectionPool::class)->getQueryBuilderForTable('be_users');
            $isUserAllowedToLogin = (bool)$queryBuilder->count('uid')
                ->from('be_users')
                ->where(
                    $queryBuilder->expr()->eq(
                        'uid',
                        $queryBuilder->createNamedParameter($backUserId, ‪Connection::PARAM_INT)
                    ),
                    $queryBuilder->expr()->eq('admin', $queryBuilder->createNamedParameter(1, ‪Connection::PARAM_INT))
                )
                ->executeQuery()
                ->fetchOne();
        }
        return $isUserAllowedToLogin;
    }
 
    public function ‪logoff()
    {
        if (isset(‪$GLOBALS['BE_USER'])
            && ‪$GLOBALS['BE_USER'] instanceof self
            && isset(‪$GLOBALS['BE_USER']->user['uid'])
        ) {
            ‪FormProtectionFactory::get()->‪clean();
            // Release the locked records
            $this->‪releaseLockedRecords((int)$GLOBALS['BE_USER']->user['uid']);
 
            if ($this->‪isSystemMaintainer()) {
                // If user is system maintainer, destroy its possibly valid install tool session.
                $session = new SessionService();
                $session->destroySession();
            }
        }
        parent::logoff();
    }
 
    protected function ‪releaseLockedRecords(int $userId)
    {
        if ($userId > 0) {
            GeneralUtility::makeInstance(ConnectionPool::class)
                ->getConnectionForTable('sys_lockedrecords')
                ->delete(
                    'sys_lockedrecords',
                    ['userid' => $userId]
                );
        }
    }
 
    public function ‪getOriginalUserIdWhenInSwitchUserMode(): ?int
    {
        $originalUserId = $this->‪getSessionData('backuserid');
        return $originalUserId ? (int)$originalUserId : null;
    }
 
    protected function ‪evaluateMfaRequirements(): void
    {
        // In case the current session is a "switch-user" session, MFA is not required
        if ($this->‪getOriginalUserIdWhenInSwitchUserMode() !== null) {
            $this->logger->debug('MFA is skipped in switch user mode', [
                $this->userid_column => $this->user[$this->userid_column],
                $this->username_column => $this->user[$this->username_column],
            ]);
            return;
        }
        parent::evaluateMfaRequirements();
    }
 
    public function ‪isMfaSetupRequired(): bool
    {
        $authConfig = $this->‪getTSConfig()['auth.']['mfa.'] ?? [];
 
        if (isset($authConfig['required'])) {
            // user TSconfig overrules global configuration
            return (bool)$authConfig['required'];
        }
 
        $globalConfig = (int)(‪$GLOBALS['TYPO3_CONF_VARS']['BE']['requireMfa'] ?? 0);
        if ($globalConfig <= 1) {
            // 0 and 1 can directly be used by type-casting to boolean
            return (bool)$globalConfig;
        }
 
        // check the system maintainer / admin / non-admin options
        $isAdmin = $this->‪isAdmin();
        return ($globalConfig === 2 && !$isAdmin)
            || ($globalConfig === 3 && $isAdmin)
            || ($globalConfig === 4 && $this->‪isSystemMaintainer());
    }
 
    public function ‪isImportEnabled(): bool
    {
        return $this->‪isAdmin()
            || ($this->‪getTSConfig()['options.']['impexp.']['enableImportForNonAdminUser'] ?? false);
    }
 
    public function ‪isExportEnabled(): bool
    {
        return $this->‪isAdmin()
            || ($this->‪getTSConfig()['options.']['impexp.']['enableExportForNonAdminUser'] ?? false);
    }
 
    public function ‪shallDisplayDebugInformation(): bool
    {
        return (‪$GLOBALS['TYPO3_CONF_VARS']['BE']['debug'] ?? false) && $this->‪isAdmin();
    }
}