[BUGFIX] Correctly assign workspace for rootline retrieval

[Packages/TYPO3.CMS.git] / typo3 / sysext / frontend / Classes / Controller / TypoScriptFrontendController.php

<?php
namespace TYPO3\CMS\Frontend\Controller;

/*
 * 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!
 */

use TYPO3\CMS\Backend\FrontendBackendUserAuthentication;
use TYPO3\CMS\Core\Authentication\BackendUserAuthentication;
use TYPO3\CMS\Core\Cache\CacheManager;
use TYPO3\CMS\Core\Charset\CharsetConverter;
use TYPO3\CMS\Core\Error\Http\PageNotFoundException;
use TYPO3\CMS\Core\Error\Http\ServiceUnavailableException;
use TYPO3\CMS\Core\Localization\Locales;
use TYPO3\CMS\Core\Localization\LocalizationFactory;
use TYPO3\CMS\Core\Locking\Exception\LockAcquireWouldBlockException;
use TYPO3\CMS\Core\Locking\Locker;
use TYPO3\CMS\Core\Messaging\ErrorpageMessage;
use TYPO3\CMS\Core\Page\PageRenderer;
use TYPO3\CMS\Core\Resource\StorageRepository;
use TYPO3\CMS\Core\TypoScript\Parser\TypoScriptParser;
use TYPO3\CMS\Core\TypoScript\TemplateService;
use TYPO3\CMS\Core\Utility\ArrayUtility;
use TYPO3\CMS\Core\Utility\ExtensionManagementUtility;
use TYPO3\CMS\Core\Locking\LockingStrategyInterface;
use TYPO3\CMS\Core\Locking\LockFactory;
use TYPO3\CMS\Core\Utility\GeneralUtility;
use TYPO3\CMS\Core\Utility\HttpUtility;
use TYPO3\CMS\Core\Utility\MathUtility;
use TYPO3\CMS\Core\Utility\StringUtility;
use TYPO3\CMS\Frontend\Authentication\FrontendUserAuthentication;
use TYPO3\CMS\Frontend\ContentObject\ContentObjectRenderer;
use TYPO3\CMS\Frontend\Page\CacheHashCalculator;
use TYPO3\CMS\Frontend\Page\PageGenerator;
use TYPO3\CMS\Frontend\Page\PageRepository;
use TYPO3\CMS\Frontend\View\AdminPanelView;

/**
 * Class for the built TypoScript based frontend. Instantiated in
 * index_ts.php script as the global object TSFE.
 *
 * Main frontend class, instantiated in the index_ts.php script as the global
 * object TSFE.
 *
 * This class has a lot of functions and internal variable which are used from
 * index_ts.php.
 *
 * The class is instantiated as $GLOBALS['TSFE'] in index_ts.php.
 *
 * The use of this class should be inspired by the order of function calls as
 * found in index_ts.php.
 */
class TypoScriptFrontendController {

        /**
         * The page id (int)
         * @var string
         */
        public $id = '';

        /**
         * The type (read-only)
         * @var int
         */
        public $type = '';

        /**
         * The submitted cHash
         * @var string
         */
        public $cHash = '';

        /**
         * Page will not be cached. Write only TRUE. Never clear value (some other
         * code might have reasons to set it TRUE).
         * @var bool
         */
        public $no_cache = FALSE;

        /**
         * The rootLine (all the way to tree root, not only the current site!)
         * @var array
         */
        public $rootLine = '';

        /**
         * The pagerecord
         * @var array
         */
        public $page = '';

        /**
         * This will normally point to the same value as id, but can be changed to
         * point to another page from which content will then be displayed instead.
         * @var int
         */
        public $contentPid = 0;

        /**
         * Gets set when we are processing a page of type mounpoint with enabled overlay in getPageAndRootline()
         * Used later in checkPageForMountpointRedirect() to determine the final target URL where the user
         * should be redirected to.
         *
         * @var array|NULL
         */
        protected $originalMountPointPage = NULL;

        /**
         * Gets set when we are processing a page of type shortcut in the early stages
         * of the request when we do not know about languages yet, used later in the request
         * to determine the correct shortcut in case a translation changes the shortcut
         * target
         * @var array|NULL
         * @see checkTranslatedShortcut()
         */
        protected $originalShortcutPage = NULL;

        /**
         * sys_page-object, pagefunctions
         *
         * @var PageRepository
         */
        public $sys_page = '';

        /**
         * @var string
         */
        public $jumpurl = '';

        /**
         * Is set to 1 if a pageNotFound handler could have been called.
         * @var int
         */
        public $pageNotFound = 0;

        /**
         * Domain start page
         * @var int
         */
        public $domainStartPage = 0;

        /**
         * Array containing a history of why a requested page was not accessible.
         * @var array
         */
        public $pageAccessFailureHistory = array();

        /**
         * @var string
         */
        public $MP = '';

        /**
         * @var string
         */
        public $RDCT = '';

        /**
         * This can be set from applications as a way to tag cached versions of a page
         * and later perform some external cache management, like clearing only a part
         * of the cache of a page...
         * @var int
         */
        public $page_cache_reg1 = 0;

        /**
         * Contains the value of the current script path that activated the frontend.
         * Typically "index.php" but by rewrite rules it could be something else! Used
         * for Speaking Urls / Simulate Static Documents.
         * @var string
         */
        public $siteScript = '';

        /**
         * The frontend user
         *
         * @var FrontendUserAuthentication
         */
        public $fe_user = '';

        /**
         * Global flag indicating that a frontend user is logged in. This is set only if
         * a user really IS logged in. The group-list may show other groups (like added
         * by IP filter or so) even though there is no user.
         * @var bool
         */
        public $loginUser = FALSE;

        /**
         * (RO=readonly) The group list, sorted numerically. Group '0,-1' is the default
         * group, but other groups may be added by other means than a user being logged
         * in though...
         * @var string
         */
        public $gr_list = '';

        /**
         * Flag that indicates if a backend user is logged in!
         * @var bool
         */
        public $beUserLogin = FALSE;

        /**
         * Integer, that indicates which workspace is being previewed.
         * @var int
         */
        public $workspacePreview = 0;

        /**
         * Shows whether logins are allowed in branch
         * @var bool
         */
        public $loginAllowedInBranch = TRUE;

        /**
         * Shows specific mode (all or groups)
         * @var string
         */
        public $loginAllowedInBranch_mode = '';

        /**
         * Set to backend user ID to initialize when keyword-based preview is used
         * @var int
         */
        public $ADMCMD_preview_BEUSER_uid = 0;

        /**
         * Flag indication that preview is active. This is based on the login of a
         * backend user and whether the backend user has read access to the current
         * page. A value of 1 means ordinary preview, 2 means preview of a non-live
         * workspace
         * @var int
         */
        public $fePreview = 0;

        /**
         * Flag indicating that hidden pages should be shown, selected and so on. This
         * goes for almost all selection of pages!
         * @var bool
         */
        public $showHiddenPage = FALSE;

        /**
         * Flag indicating that hidden records should be shown. This includes
         * sys_template, pages_language_overlay and even fe_groups in addition to all
         * other regular content. So in effect, this includes everything except pages.
         * @var bool
         */
        public $showHiddenRecords = FALSE;

        /**
         * Value that contains the simulated usergroup if any
         * @var int
         */
        public $simUserGroup = 0;

        /**
         * Copy of $GLOBALS['TYPO3_CONF_VARS']
         *
         * @var array
         */
        public $TYPO3_CONF_VARS = array();

        /**
         * "CONFIG" object from TypoScript. Array generated based on the TypoScript
         * configuration of the current page. Saved with the cached pages.
         * @var array
         */
        public $config = '';

        /**
         * The TypoScript template object. Used to parse the TypoScript template
         *
         * @var TemplateService
         */
        public $tmpl = NULL;

        /**
         * Is set to the time-to-live time of cached pages. If FALSE, default is
         * 60*60*24, which is 24 hours.
         * @var bool|int
         */
        public $cacheTimeOutDefault = FALSE;

        /**
         * Set internally if cached content is fetched from the database
         * @var bool
         * @internal
         */
        public $cacheContentFlag = FALSE;

        /**
         * Set to the expire time of cached content
         * @var int
         */
        public $cacheExpires = 0;

        /**
         * Set if cache headers allowing caching are sent.
         * @var bool
         */
        public $isClientCachable = FALSE;

        /**
         * Used by template fetching system. This array is an identification of
         * the template. If $this->all is empty it's because the template-data is not
         * cached, which it must be.
         * @var array
         */
        public $all = array();

        /**
         * Toplevel - objArrayName, eg 'page'
         * @var string
         */
        public $sPre = '';

        /**
         * TypoScript configuration of the page-object pointed to by sPre.
         * $this->tmpl->setup[$this->sPre.'.']
         * @var array
         */
        public $pSetup = '';

        /**
         * This hash is unique to the template, the $this->id and $this->type vars and
         * the gr_list (list of groups). Used to get and later store the cached data
         * @var string
         */
        public $newHash = '';

        /**
         * If config.ftu (Frontend Track User) is set in TypoScript for the current
         * page, the string value of this var is substituted in the rendered source-code
         * with the string, '&ftu=[token...]' which enables GET-method usertracking as
         * opposed to cookie based
         * @var string
         */
        public $getMethodUrlIdToken = '';

        /**
         * This flag is set before inclusion of pagegen.php IF no_cache is set. If this
         * flag is set after the inclusion of pagegen.php, no_cache is forced to be set.
         * This is done in order to make sure that php-code from pagegen does not falsely
         * clear the no_cache flag.
         * @var bool
         */
        public $no_cacheBeforePageGen = FALSE;

        /**
         * This flag indicates if temporary content went into the cache during
         * page-generation.
         * @var mixed
         */
        public $tempContent = FALSE;

        /**
         * Passed to TypoScript template class and tells it to force template rendering
         * @var bool
         */
        public $forceTemplateParsing = FALSE;

        /**
         * The array which cHash_calc is based on, see ->makeCacheHash().
         * @var array
         */
        public $cHash_array = array();

        /**
         * May be set to the pagesTSconfig
         * @var array
         */
        public $pagesTSconfig = '';

        /**
         * Eg. insert JS-functions in this array ($additionalHeaderData) to include them
         * once. Use associative keys.
         *
         * Keys in use:
         *
         * JSFormValidate: <script type="text/javascript" src="'.$GLOBALS["TSFE"]->absRefPrefix.'typo3/sysext/frontend/Resources/Public/JavaScript/jsfunc.validateform.js"></script>
         * JSMenuCode, JSMenuCode_menu: JavaScript for the JavaScript menu
         * JSCode: reserved
         *
         * used to accumulate additional HTML-code for the header-section,
         * <head>...</head>. Insert either associative keys (like
         * additionalHeaderData['myStyleSheet'], see reserved keys above) or num-keys
         * (like additionalHeaderData[] = '...')
         *
         * @var array
         */
        public $additionalHeaderData = array();

        /**
         * Used to accumulate additional HTML-code for the footer-section of the template
         * @var array
         */
        public $additionalFooterData = array();

        /**
         * Used to accumulate additional JavaScript-code. Works like
         * additionalHeaderData. Reserved keys at 'openPic' and 'mouseOver'
         *
         * @var array
         */
        public $additionalJavaScript = array();

        /**
         * Used to accumulate additional Style code. Works like additionalHeaderData.
         *
         * @var array
         */
        public $additionalCSS = array();

        /**
         * You can add JavaScript functions to each entry in these arrays. Please see
         * how this is done in the GMENU_LAYERS script. The point is that many
         * applications on a page can set handlers for onload, onmouseover and onmouseup
         *
         * @var array
         * @deprecated since TYPO3 CMS 7, will be removed in TYPO3 CMS 8
         */
        public $JSeventFuncCalls = array(
                'onmousemove' => array(),
                'onmouseup' => array(),
                'onkeydown' => array(),
                'onkeyup' => array(),
                'onkeypress' => array(),
                'onload' => array(),
                'onunload' => array()
        );

        /**
         * Used to accumulate DHTML-layers.
         * @var string
         */
        public $divSection = '';

        /**
         * Default bodytag, if nothing else is set. This can be overridden by
         * applications like TemplaVoila.
         * @var string
         */
        public $defaultBodyTag = '<body>';

        /**
         * Debug flag, may output special debug html-code.
         * @var string
         */
        public $debug = '';

        /**
         * Default internal target
         * @var string
         */
        public $intTarget = '';

        /**
         * Default external target
         * @var string
         */
        public $extTarget = '';

        /**
         * Default file link target
         * @var string
         */
        public $fileTarget = '';

        /**
         * Keys are page ids and values are default &MP (mount point) values to set
         * when using the linking features...)
         * @var array
         */
        public $MP_defaults = array();

        /**
         * If set, typolink() function encrypts email addresses. Is set in pagegen-class.
         * @var string|int
         */
        public $spamProtectEmailAddresses = 0;

        /**
         * Absolute Reference prefix
         * @var string
         */
        public $absRefPrefix = '';

        /**
         * Factor for form-field widths compensation
         * @var string
         */
        public $compensateFieldWidth = '';

        /**
         * Lock file path
         * @var string
         */
        public $lockFilePath = '';

        /**
         * <A>-tag parameters
         * @var string
         */
        public $ATagParams = '';

        /**
         * Search word regex, calculated if there has been search-words send. This is
         * used to mark up the found search words on a page when jumped to from a link
         * in a search-result.
         * @var string
         */
        public $sWordRegEx = '';

        /**
         * Is set to the incoming array sword_list in case of a page-view jumped to from
         * a search-result.
         * @var string
         */
        public $sWordList = '';

        /**
         * A string prepared for insertion in all links on the page as url-parameters.
         * Based on configuration in TypoScript where you defined which GET_VARS you
         * would like to pass on.
         * @var string
         */
        public $linkVars = '';

        /**
         * A string set with a comma list of additional GET vars which should NOT be
         * included in the cHash calculation. These vars should otherwise be detected
         * and involved in caching, eg. through a condition in TypoScript.
         * @var string
         */
        public $excludeCHashVars = '';

        /**
         * If set, edit icons are rendered aside content records. Must be set only if
         * the ->beUserLogin flag is set and set_no_cache() must be called as well.
         * @var string
         */
        public $displayEditIcons = '';

        /**
         * If set, edit icons are rendered aside individual fields of content. Must be
         * set only if the ->beUserLogin flag is set and set_no_cache() must be called as
         * well.
         * @var string
         */
        public $displayFieldEditIcons = '';

        /**
         * Site language, 0 (zero) is default, int+ is uid pointing to a sys_language
         * record. Should reflect which language menus, templates etc is displayed in
         * (master language) - but not necessarily the content which could be falling
         * back to default (see sys_language_content)
         * @var int
         */
        public $sys_language_uid = 0;

        /**
         * Site language mode for content fall back.
         * @var string
         */
        public $sys_language_mode = '';

        /**
         * Site content selection uid (can be different from sys_language_uid if content
         * is to be selected from a fall-back language. Depends on sys_language_mode)
         * @var int
         */
        public $sys_language_content = 0;

        /**
         * Site content overlay flag; If set - and sys_language_content is > 0 - ,
         * records selected will try to look for a translation pointing to their uid. (If
         * configured in [ctrl][languageField] / [ctrl][transOrigP...]
         * @var int
         */
        public $sys_language_contentOL = 0;

        /**
         * Is set to the iso code of the sys_language_content if that is properly defined
         * by the sys_language record representing the sys_language_uid.
         * @var string
         */
        public $sys_language_isocode = '';

        /**
         * 'Global' Storage for various applications. Keys should be 'tx_'.extKey for
         * extensions.
         * @var array
         */
        public $applicationData = array();

        /**
         * @var array
         */
        public $register = array();

        /**
         * Stack used for storing array and retrieving register arrays (see
         * LOAD_REGISTER and RESTORE_REGISTER)
         * @var array
         */
        public $registerStack = array();

        /**
         * Checking that the function is not called eternally. This is done by
         * interrupting at a depth of 50
         * @var int
         */
        public $cObjectDepthCounter = 50;

        /**
         * Used by RecordContentObject and ContentContentObject to ensure the a records is NOT
         * rendered twice through it!
         * @var array
         */
        public $recordRegister = array();

        /**
         * This is set to the [table]:[uid] of the latest record rendered. Note that
         * class ContentObjectRenderer has an equal value, but that is pointing to the
         * record delivered in the $data-array of the ContentObjectRenderer instance, if
         * the cObjects CONTENT or RECORD created that instance
         * @var string
         */
        public $currentRecord = '';

        /**
         * Used by class \TYPO3\CMS\Frontend\ContentObject\Menu\AbstractMenuContentObject
         * to keep track of access-keys.
         * @var array
         */
        public $accessKey = array();

        /**
         * Numerical array where image filenames are added if they are referenced in the
         * rendered document. This includes only TYPO3 generated/inserted images.
         * @var array
         */
        public $imagesOnPage = array();

        /**
         * Is set in ContentObjectRenderer->cImage() function to the info-array of the
         * most recent rendered image. The information is used in ImageTextContentObject
         * @var array
         */
        public $lastImageInfo = array();

        /**
         * Used to generate page-unique keys. Point is that uniqid() functions is very
         * slow, so a unikey key is made based on this, see function uniqueHash()
         * @var int
         */
        public $uniqueCounter = 0;

        /**
         * @var string
         */
        public $uniqueString = '';

        /**
         * This value will be used as the title for the page in the indexer (if
         * indexing happens)
         * @var string
         */
        public $indexedDocTitle = '';

        /**
         * Alternative page title (normally the title of the page record). Can be set
         * from applications you make.
         * @var string
         */
        public $altPageTitle = '';

        /**
         * The base URL set for the page header.
         * @var string
         */
        public $baseUrl = '';

        /**
         * The proper anchor prefix needed when using speaking urls. (only set if
         * baseUrl is set)
         * @deprecated since TYPO3 CMS 7, will be removed with TYPO3 CMS 8, use substr(GeneralUtility::getIndpEnv('TYPO3_REQUEST_URL'), strlen(GeneralUtility::getIndpEnv('TYPO3_SITE_URL'))) directly
         * @var string
         */
        public $anchorPrefix = '';

        /**
         * IDs we already rendered for this page (to make sure they are unique)
         * @var array
         */
        private $usedUniqueIds = array();

        /**
         * Page content render object
         *
         * @var ContentObjectRenderer
         */
        public $cObj = '';

        /**
         * All page content is accumulated in this variable. See pagegen.php
         * @var string
         */
        public $content = '';

        /**
         * Set to the browser: net / msie if 4+ browsers
         * @var string
         */
        public $clientInfo = '';

        /**
         * @var int
         */
        public $scriptParseTime = 0;

        /**
         * Character set (charset) conversion object:
         * charset conversion class. May be used by any application.
         *
         * @var CharsetConverter
         */
        public $csConvObj;

        /**
         * The default charset used in the frontend if nothing else is set.
         * @var string
         */
        public $defaultCharSet = 'utf-8';

        /**
         * Internal charset of the frontend during rendering. (Default: UTF-8)
         * @var string
         */
        public $renderCharset = 'utf-8';

        /**
         * Output charset of the websites content. This is the charset found in the
         * header, meta tag etc. If different from $renderCharset a conversion
         * happens before output to browser. Defaults to ->renderCharset if not set.
         * @var string
         */
        public $metaCharset = 'utf-8';

        /**
         * Assumed charset of locale strings.
         * @var string
         */
        public $localeCharset = '';

        /**
         * Set to the system language key (used on the site)
         * @var string
         */
        public $lang = '';

        /**
         * @var array
         */
        public $LL_labels_cache = array();

        /**
         * @var array
         */
        public $LL_files_cache = array();

        /**
         * List of language dependencies for actual language. This is used for local
         * variants of a language that depend on their "main" language, like Brazilian,
         * Portuguese or Canadian French.
         *
         * @var array
         */
        protected $languageDependencies = array();

        /**
         * @var LockingStrategyInterface[][]
         */
        protected $locks = [];

        /**
         * @var PageRenderer
         */
        protected $pageRenderer = NULL;

        /**
         * The page cache object, use this to save pages to the cache and to
         * retrieve them again
         *
         * @var \TYPO3\CMS\Core\Cache\Backend\AbstractBackend
         */
        protected $pageCache;

        /**
         * @var array
         */
        protected $pageCacheTags = array();

        /**
         * The cHash Service class used for cHash related functionality
         *
         * @var CacheHashCalculator
         */
        protected $cacheHash;

        /**
         * Runtime cache of domains per processed page ids.
         *
         * @var array
         */
        protected $domainDataCache = array();

        /**
         * Content type HTTP header being sent in the request.
         * @todo Ticket: #63642 Should be refactored to a request/response model later
         * @internal Should only be used by TYPO3 core for now
         *
         * @var string
         */
        protected $contentType = 'text/html';

        /**
         * Doctype to use
         *
         * Currently set via PageGenerator
         *
         * @var string
         */
        public $xhtmlDoctype = '';

        /**
         * Originally requested id from the initial $_GET variable
         *
         * @var int
         */
        protected $requestedId;

        /**
         * Class constructor
         * Takes a number of GET/POST input variable as arguments and stores them internally.
         * The processing of these variables goes on later in this class.
         * Also sets internal clientInfo array (browser information) and a unique string (->uniqueString) for this script instance; A md5 hash of the microtime()
         *
         * @param array $TYPO3_CONF_VARS The global $TYPO3_CONF_VARS array. Will be set internally in ->TYPO3_CONF_VARS
         * @param mixed $id The value of GeneralUtility::_GP('id')
         * @param int $type The value of GeneralUtility::_GP('type')
         * @param bool|string $no_cache The value of GeneralUtility::_GP('no_cache'), evaluated to 1/0
         * @param string $cHash The value of GeneralUtility::_GP('cHash')
         * @param string $jumpurl The value of GeneralUtility::_GP('jumpurl')
         * @param string $MP The value of GeneralUtility::_GP('MP')
         * @param string $RDCT The value of GeneralUtility::_GP('RDCT')
         * @see index_ts.php
         */
        public function __construct($TYPO3_CONF_VARS, $id, $type, $no_cache = '', $cHash = '', $jumpurl = '', $MP = '', $RDCT = '') {
                // Setting some variables:
                $this->TYPO3_CONF_VARS = $TYPO3_CONF_VARS;
                $this->id = $id;
                $this->type = $type;
                if ($no_cache) {
                        if ($this->TYPO3_CONF_VARS['FE']['disableNoCacheParameter']) {
                                $warning = '&no_cache=1 has been ignored because $TYPO3_CONF_VARS[\'FE\'][\'disableNoCacheParameter\'] is set!';
                                $GLOBALS['TT']->setTSlogMessage($warning, 2);
                        } else {
                                $warning = '&no_cache=1 has been supplied, so caching is disabled! URL: "' . GeneralUtility::getIndpEnv('TYPO3_REQUEST_URL') . '"';
                                $this->disableCache();
                        }
                        GeneralUtility::sysLog($warning, 'cms', GeneralUtility::SYSLOG_SEVERITY_WARNING);
                }
                $this->cHash = $cHash;
                $this->jumpurl = $jumpurl;
                $this->MP = $this->TYPO3_CONF_VARS['FE']['enable_mount_pids'] ? (string)$MP : '';
                $this->RDCT = $RDCT;
                $this->clientInfo = GeneralUtility::clientInfo();
                $this->uniqueString = md5(microtime());
                $this->csConvObj = GeneralUtility::makeInstance(CharsetConverter::class);
                $this->initPageRenderer();
                // Call post processing function for constructor:
                if (is_array($this->TYPO3_CONF_VARS['SC_OPTIONS']['tslib/class.tslib_fe.php']['tslib_fe-PostProc'])) {
                        $_params = array('pObj' => &$this);
                        foreach ($this->TYPO3_CONF_VARS['SC_OPTIONS']['tslib/class.tslib_fe.php']['tslib_fe-PostProc'] as $_funcRef) {
                                GeneralUtility::callUserFunction($_funcRef, $_params, $this);
                        }
                }
                $this->cacheHash = GeneralUtility::makeInstance(CacheHashCalculator::class);
                $this->initCaches();
        }

        /**
         * Initializes the page renderer object
         */
        protected function initPageRenderer() {
                if ($this->pageRenderer !== NULL) {
                        return;
                }
                $this->pageRenderer = GeneralUtility::makeInstance(PageRenderer::class);
                $this->pageRenderer->setTemplateFile('EXT:frontend/Resources/Private/Templates/MainPage.html');
                $this->pageRenderer->setBackPath(TYPO3_mainDir);
        }

        /**
         * @param string $contentType
         * @internal Should only be used by TYPO3 core for now
         */
        public function setContentType($contentType) {
                $this->contentType = $contentType;
        }

        /**
         * Connect to SQL database. May exit after outputting an error message
         * or some JavaScript redirecting to the install tool.
         *
         * @throws \RuntimeException
         * @throws ServiceUnavailableException
         * @return void
         */
        public function connectToDB() {
                try {
                        $GLOBALS['TYPO3_DB']->connectDB();
                } catch (\RuntimeException $exception) {
                        switch ($exception->getCode()) {
                                case 1270853883:
                                        // Cannot connect to current database
                                        $message = 'Cannot connect to the configured database "' . TYPO3_db . '"';
                                        if ($this->checkPageUnavailableHandler()) {
                                                $this->pageUnavailableAndExit($message);
                                        } else {
                                                GeneralUtility::sysLog($message, 'cms', GeneralUtility::SYSLOG_SEVERITY_ERROR);
                                                throw new ServiceUnavailableException($message, 1301648782);
                                        }
                                        break;
                                case 1270853884:
                                        // Username / password not accepted
                                        $message = 'The current username, password or host was not accepted when' . ' the connection to the database was attempted to be established!';
                                        if ($this->checkPageUnavailableHandler()) {
                                                $this->pageUnavailableAndExit($message);
                                        } else {
                                                GeneralUtility::sysLog($message, 'cms', GeneralUtility::SYSLOG_SEVERITY_ERROR);
                                                throw new ServiceUnavailableException('Database Error: ' . $message, 1301648945);
                                        }
                                        break;
                                default:
                                        throw $exception;
                        }
                }
                // Call post processing function for DB connection:
                if (is_array($this->TYPO3_CONF_VARS['SC_OPTIONS']['tslib/class.tslib_fe.php']['connectToDB'])) {
                        $_params = array('pObj' => &$this);
                        foreach ($this->TYPO3_CONF_VARS['SC_OPTIONS']['tslib/class.tslib_fe.php']['connectToDB'] as $_funcRef) {
                                GeneralUtility::callUserFunction($_funcRef, $_params, $this);
                        }
                }
        }

        /**
         * Looks up the value of $this->RDCT in the database and if it is
         * found to be associated with a redirect URL then the redirection
         * is carried out with a 'Location:' header
         * May exit after sending a location-header.
         *
         * @return void
         */
        public function sendRedirect() {
                if ($this->RDCT) {
                        $res = $GLOBALS['TYPO3_DB']->exec_SELECTquery('params', 'cache_md5params', 'md5hash=' . $GLOBALS['TYPO3_DB']->fullQuoteStr($this->RDCT, 'cache_md5params'));
                        if ($row = $GLOBALS['TYPO3_DB']->sql_fetch_assoc($res)) {
                                $this->updateMD5paramsRecord($this->RDCT);
                                header('Location: ' . $row['params']);
                                die;
                        }
                }
        }

        /**
         * Gets instance of PageRenderer
         *
         * @return PageRenderer
         * @deprecated since TYPO3 CMS 7, will be removed in TYPO3 CMS 8.
         */
        public function getPageRenderer() {
                GeneralUtility::logDeprecatedFunction();
                $this->initPageRenderer();

                return $this->pageRenderer;
        }

        /********************************************
         *
         * Initializing, resolving page id
         *
         ********************************************/
        /**
         * Initializes the caching system.
         *
         * @return void
         */
        protected function initCaches() {
                $this->pageCache = GeneralUtility::makeInstance(CacheManager::class)->getCache('cache_pages');
        }

        /**
         * Initializes the front-end login user.
         *
         * @return void
         */
        public function initFEuser() {
                $this->fe_user = GeneralUtility::makeInstance(FrontendUserAuthentication::class);
                $this->fe_user->lockIP = $this->TYPO3_CONF_VARS['FE']['lockIP'];
                $this->fe_user->checkPid = $this->TYPO3_CONF_VARS['FE']['checkFeUserPid'];
                $this->fe_user->lifetime = (int)$this->TYPO3_CONF_VARS['FE']['lifetime'];
                // List of pid's acceptable
                $pid = GeneralUtility::_GP('pid');
                $this->fe_user->checkPid_value = $pid ? $GLOBALS['TYPO3_DB']->cleanIntList($pid) : 0;
                // Check if a session is transferred:
                if (GeneralUtility::_GP('FE_SESSION_KEY')) {
                        $fe_sParts = explode('-', GeneralUtility::_GP('FE_SESSION_KEY'));
                        // If the session key hash check is OK:
                        if (md5(($fe_sParts[0] . '/' . $this->TYPO3_CONF_VARS['SYS']['encryptionKey'])) === (string)$fe_sParts[1]) {
                                $cookieName = FrontendUserAuthentication::getCookieName();
                                $_COOKIE[$cookieName] = $fe_sParts[0];
                                if (isset($_SERVER['HTTP_COOKIE'])) {
                                        // See http://forge.typo3.org/issues/27740
                                        $_SERVER['HTTP_COOKIE'] .= ';' . $cookieName . '=' . $fe_sParts[0];
                                }
                                $this->fe_user->forceSetCookie = 1;
                                $this->fe_user->dontSetCookie = FALSE;
                                unset($cookieName);
                        }
                }
                $this->fe_user->start();
                $this->fe_user->unpack_uc('');
                // Gets session data
                $this->fe_user->fetchSessionData();
                $recs = GeneralUtility::_GP('recs');
                // If any record registration is submitted, register the record.
                if (is_array($recs)) {
                        $this->fe_user->record_registration($recs, $this->TYPO3_CONF_VARS['FE']['maxSessionDataSize']);
                }
                // Call hook for possible manipulation of frontend user object
                if (is_array($this->TYPO3_CONF_VARS['SC_OPTIONS']['tslib/class.tslib_fe.php']['initFEuser'])) {
                        $_params = array('pObj' => &$this);
                        foreach ($this->TYPO3_CONF_VARS['SC_OPTIONS']['tslib/class.tslib_fe.php']['initFEuser'] as $_funcRef) {
                                GeneralUtility::callUserFunction($_funcRef, $_params, $this);
                        }
                }
                // For every 60 seconds the is_online timestamp is updated.
                if (is_array($this->fe_user->user) && $this->fe_user->user['uid'] && $this->fe_user->user['is_online'] < $GLOBALS['EXEC_TIME'] - 60) {
                        $GLOBALS['TYPO3_DB']->exec_UPDATEquery('fe_users', 'uid=' . (int)$this->fe_user->user['uid'], array('is_online' => $GLOBALS['EXEC_TIME']));
                }
        }

        /**
         * Initializes the front-end user groups.
         * Sets ->loginUser and ->gr_list based on front-end user status.
         *
         * @return void
         */
        public function initUserGroups() {
                // This affects the hidden-flag selecting the fe_groups for the user!
                $this->fe_user->showHiddenRecords = $this->showHiddenRecords;
                // no matter if we have an active user we try to fetch matching groups which can be set without an user (simulation for instance!)
                $this->fe_user->fetchGroupData();
                if (is_array($this->fe_user->user) && !empty($this->fe_user->groupData['uid'])) {
                        // global flag!
                        $this->loginUser = TRUE;
                        // group -2 is not an existing group, but denotes a 'default' group when a user IS logged in. This is used to let elements be shown for all logged in users!
                        $this->gr_list = '0,-2';
                        $gr_array = $this->fe_user->groupData['uid'];
                } else {
                        $this->loginUser = FALSE;
                        // group -1 is not an existing group, but denotes a 'default' group when not logged in. This is used to let elements be hidden, when a user is logged in!
                        $this->gr_list = '0,-1';
                        if ($this->loginAllowedInBranch) {
                                // For cases where logins are not banned from a branch usergroups can be set based on IP masks so we should add the usergroups uids.
                                $gr_array = $this->fe_user->groupData['uid'];
                        } else {
                                // Set to blank since we will NOT risk any groups being set when no logins are allowed!
                                $gr_array = array();
                        }
                }
                // Clean up.
                // Make unique...
                $gr_array = array_unique($gr_array);
                // sort
                sort($gr_array);
                if (!empty($gr_array) && !$this->loginAllowedInBranch_mode) {
                        $this->gr_list .= ',' . implode(',', $gr_array);
                }
                if ($this->fe_user->writeDevLog) {
                        GeneralUtility::devLog('Valid usergroups for TSFE: ' . $this->gr_list, __CLASS__);
                }
        }

        /**
         * Checking if a user is logged in or a group constellation different from "0,-1"
         *
         * @return bool TRUE if either a login user is found (array fe_user->user) OR if the gr_list is set to something else than '0,-1' (could be done even without a user being logged in!)
         */
        public function isUserOrGroupSet() {
                return is_array($this->fe_user->user) || $this->gr_list !== '0,-1';
        }

        /**
         * Provides ways to bypass the '?id=[xxx]&type=[xx]' format, using either PATH_INFO or virtual HTML-documents (using Apache mod_rewrite)
         *
         * Two options:
         * 1) Use PATH_INFO (also Apache) to extract id and type from that var. Does not require any special modules compiled with apache. (less typical)
         * 2) Using hook which enables features like those provided from "realurl" extension (AKA "Speaking URLs")
         *
         * @return void
         */
        public function checkAlternativeIdMethods() {
                $this->siteScript = GeneralUtility::getIndpEnv('TYPO3_SITE_SCRIPT');
                // Call post processing function for custom URL methods.
                if (is_array($this->TYPO3_CONF_VARS['SC_OPTIONS']['tslib/class.tslib_fe.php']['checkAlternativeIdMethods-PostProc'])) {
                        $_params = array('pObj' => &$this);
                        foreach ($this->TYPO3_CONF_VARS['SC_OPTIONS']['tslib/class.tslib_fe.php']['checkAlternativeIdMethods-PostProc'] as $_funcRef) {
                                GeneralUtility::callUserFunction($_funcRef, $_params, $this);
                        }
                }
        }

        /**
         * Clears the preview-flags, sets sim_exec_time to current time.
         * Hidden pages must be hidden as default, $GLOBALS['SIM_EXEC_TIME'] is set to $GLOBALS['EXEC_TIME']
         * in bootstrap initializeGlobalTimeVariables(). Alter it by adding or subtracting seconds.
         *
         * @return void
         */
        public function clear_preview() {
                $this->showHiddenPage = FALSE;
                $this->showHiddenRecords = FALSE;
                $GLOBALS['SIM_EXEC_TIME'] = $GLOBALS['EXEC_TIME'];
                $GLOBALS['SIM_ACCESS_TIME'] = $GLOBALS['ACCESS_TIME'];
                $this->fePreview = 0;
        }

        /**
         * Checks if a backend user is logged in
         *
         * @return bool whether a backend user is logged in
         */
        public function isBackendUserLoggedIn() {
                return (bool)$this->beUserLogin;
        }

        /**
         * Creates the backend user object and returns it.
         *
         * @return FrontendBackendUserAuthentication the backend user object
         */
        public function initializeBackendUser() {
                // PRE BE_USER HOOK
                if (is_array($this->TYPO3_CONF_VARS['SC_OPTIONS']['tslib/index_ts.php']['preBeUser'])) {
                        foreach ($this->TYPO3_CONF_VARS['SC_OPTIONS']['tslib/index_ts.php']['preBeUser'] as $_funcRef) {
                                $_params = array();
                                GeneralUtility::callUserFunction($_funcRef, $_params, $this);
                        }
                }
                /** @var $BE_USER FrontendBackendUserAuthentication */
                $BE_USER = NULL;
                // If the backend cookie is set,
                // we proceed and check if a backend user is logged in.
                if ($_COOKIE[BackendUserAuthentication::getCookieName()]) {
                        $GLOBALS['TYPO3_MISC']['microtime_BE_USER_start'] = microtime(TRUE);
                        $GLOBALS['TT']->push('Back End user initialized', '');
                        // @todo validate the comment below: is this necessary? if so,
                        //   formfield_status should be set to "" in \TYPO3\CMS\Backend\FrontendBackendUserAuthentication
                        //   which is a subclass of \TYPO3\CMS\Core\Authentication\BackendUserAuthentication
                        // ----
                        // the value this->formfield_status is set to empty in order to
                        // disable login-attempts to the backend account through this script
                        // New backend user object
                        $BE_USER = GeneralUtility::makeInstance(FrontendBackendUserAuthentication::class);
                        $BE_USER->lockIP = $this->TYPO3_CONF_VARS['BE']['lockIP'];
                        // Object is initialized
                        $BE_USER->start();
                        $BE_USER->unpack_uc('');
                        if (!empty($BE_USER->user['uid'])) {
                                $BE_USER->fetchGroupData();
                                $this->beUserLogin = TRUE;
                        }
                        // Unset the user initialization.
                        if (!$BE_USER->checkLockToIP() || !$BE_USER->checkBackendAccessSettingsFromInitPhp() || empty($BE_USER->user['uid'])) {
                                $BE_USER = NULL;
                                $this->beUserLogin = FALSE;
                        }
                        $GLOBALS['TT']->pull();
                        $GLOBALS['TYPO3_MISC']['microtime_BE_USER_end'] = microtime(TRUE);
                }
                // POST BE_USER HOOK
                if (is_array($this->TYPO3_CONF_VARS['SC_OPTIONS']['tslib/index_ts.php']['postBeUser'])) {
                        $_params = array(
                                'BE_USER' => &$BE_USER
                        );
                        foreach ($this->TYPO3_CONF_VARS['SC_OPTIONS']['tslib/index_ts.php']['postBeUser'] as $_funcRef) {
                                GeneralUtility::callUserFunction($_funcRef, $_params, $this);
                        }
                }
                return $BE_USER;
        }

        /**
         * Determines the id and evaluates any preview settings
         * Basically this function is about determining whether a backend user is logged in, if he has read access to the page and if he's previewing the page. That all determines which id to show and how to initialize the id.
         *
         * @return void
         */
        public function determineId() {
                // Call pre processing function for id determination
                if (is_array($this->TYPO3_CONF_VARS['SC_OPTIONS']['tslib/class.tslib_fe.php']['determineId-PreProcessing'])) {
                        foreach ($this->TYPO3_CONF_VARS['SC_OPTIONS']['tslib/class.tslib_fe.php']['determineId-PreProcessing'] as $functionReference) {
                                $parameters = array('parentObject' => $this);
                                GeneralUtility::callUserFunction($functionReference, $parameters, $this);
                        }
                }
                // Getting ARG-v values if some
                $this->setIDfromArgV();
                // If there is a Backend login we are going to check for any preview settings:
                $GLOBALS['TT']->push('beUserLogin', '');
                $originalFrontendUser = NULL;
                if ($this->beUserLogin || $this->doWorkspacePreview()) {
                        // Backend user preview features:
                        if ($this->beUserLogin && $GLOBALS['BE_USER']->adminPanel instanceof AdminPanelView) {
                                $this->fePreview = (bool)$GLOBALS['BE_USER']->adminPanel->extGetFeAdminValue('preview');
                                // If admin panel preview is enabled...
                                if ($this->fePreview) {
                                        if ($this->fe_user->user) {
                                                $originalFrontendUser = $this->fe_user->user;
                                        }
                                        $this->showHiddenPage = (bool)$GLOBALS['BE_USER']->adminPanel->extGetFeAdminValue('preview', 'showHiddenPages');
                                        $this->showHiddenRecords = (bool)$GLOBALS['BE_USER']->adminPanel->extGetFeAdminValue('preview', 'showHiddenRecords');
                                        // Simulate date
                                        $simTime = $GLOBALS['BE_USER']->adminPanel->extGetFeAdminValue('preview', 'simulateDate');
                                        if ($simTime) {
                                                $GLOBALS['SIM_EXEC_TIME'] = $simTime;
                                                $GLOBALS['SIM_ACCESS_TIME'] = $simTime - $simTime % 60;
                                        }
                                        // simulate user
                                        $simUserGroup = $GLOBALS['BE_USER']->adminPanel->extGetFeAdminValue('preview', 'simulateUserGroup');
                                        $this->simUserGroup = $simUserGroup;
                                        if ($simUserGroup) {
                                                if ($this->fe_user->user) {
                                                        $this->fe_user->user[$this->fe_user->usergroup_column] = $simUserGroup;
                                                } else {
                                                        $this->fe_user->user = array(
                                                                $this->fe_user->usergroup_column => $simUserGroup
                                                        );
                                                }
                                        }
                                        if (!$simUserGroup && !$simTime && !$this->showHiddenPage && !$this->showHiddenRecords) {
                                                $this->fePreview = 0;
                                        }
                                }
                        }
                        if ($this->id) {
                                if ($this->determineIdIsHiddenPage()) {
                                        // The preview flag is set only if the current page turns out to actually be hidden!
                                        $this->fePreview = 1;
                                        $this->showHiddenPage = TRUE;
                                }
                                // For Live workspace: Check root line for proper connection to tree root (done because of possible preview of page / branch versions)
                                if (!$this->fePreview && $this->whichWorkspace() === 0) {
                                        // Initialize the page-select functions to check rootline:
                                        $temp_sys_page = GeneralUtility::makeInstance(PageRepository::class);
                                        $temp_sys_page->init($this->showHiddenPage);
                                        // If root line contained NO records and ->error_getRootLine_failPid tells us that it was because of a pid=-1 (indicating a "version" record)...:
                                        if (empty($temp_sys_page->getRootLine($this->id, $this->MP)) && $temp_sys_page->error_getRootLine_failPid == -1) {
                                                // Setting versioningPreview flag and try again:
                                                $temp_sys_page->versioningPreview = TRUE;
                                                if (!empty($temp_sys_page->getRootLine($this->id, $this->MP))) {
                                                        // Finally, we got a root line (meaning that it WAS due to versioning preview of a page somewhere) and we set the fePreview flag which in itself will allow sys_page class to display previews of versionized records.
                                                        $this->fePreview = 1;
                                                }
                                        }
                                }
                        }
                        // The preview flag will be set if a backend user is in an offline workspace
                        if (
                                        (
                                                $GLOBALS['BE_USER']->user['workspace_preview']
                                                || GeneralUtility::_GP('ADMCMD_view')
                                                || $this->doWorkspacePreview()
                                        )
                                        && (
                                                $this->whichWorkspace() === -1
                                                || $this->whichWorkspace() > 0
                                        )
                                        && !GeneralUtility::_GP('ADMCMD_noBeUser')
                        ) {
                                // Will show special preview message.
                                $this->fePreview = 2;
                        }
                        // If the front-end is showing a preview, caching MUST be disabled.
                        if ($this->fePreview) {
                                $this->disableCache();
                        }
                }
                $GLOBALS['TT']->pull();
                // Now, get the id, validate access etc:
                $this->fetch_the_id();
                // Check if backend user has read access to this page. If not, recalculate the id.
                if ($this->beUserLogin && $this->fePreview) {
                        if (!$GLOBALS['BE_USER']->doesUserHaveAccess($this->page, 1)) {
                                // Resetting
                                $this->clear_preview();
                                $this->fe_user->user = $originalFrontendUser;
                                // Fetching the id again, now with the preview settings reset.
                                $this->fetch_the_id();
                        }
                }
                // Checks if user logins are blocked for a certain branch and if so, will unset user login and re-fetch ID.
                $this->loginAllowedInBranch = $this->checkIfLoginAllowedInBranch();
                // Logins are not allowed:
                if (!$this->loginAllowedInBranch) {
                        // Only if there is a login will we run this...
                        if ($this->isUserOrGroupSet()) {
                                if ($this->loginAllowedInBranch_mode == 'all') {
                                        // Clear out user and group:
                                        $this->fe_user->hideActiveLogin();
                                        $this->gr_list = '0,-1';
                                } else {
                                        $this->gr_list = '0,-2';
                                }
                                // Fetching the id again, now with the preview settings reset.
                                $this->fetch_the_id();
                        }
                }
                // Final cleaning.
                // Make sure it's an integer
                $this->id = ($this->contentPid = (int)$this->id);
                // Make sure it's an integer
                $this->type = (int)$this->type;
                // Call post processing function for id determination:
                if (is_array($this->TYPO3_CONF_VARS['SC_OPTIONS']['tslib/class.tslib_fe.php']['determineId-PostProc'])) {
                        $_params = array('pObj' => &$this);
                        foreach ($this->TYPO3_CONF_VARS['SC_OPTIONS']['tslib/class.tslib_fe.php']['determineId-PostProc'] as $_funcRef) {
                                GeneralUtility::callUserFunction($_funcRef, $_params, $this);
                        }
                }
        }

        /**
         * Checks if the page is hidden in the active workspace.
         * If it is hidden, preview flags will be set.
         *
         * @return bool
         */
        protected function determineIdIsHiddenPage() {
                $field = MathUtility::canBeInterpretedAsInteger($this->id) ? 'uid' : 'alias';
                $pageSelectCondition = $field . '=' . $GLOBALS['TYPO3_DB']->fullQuoteStr($this->id, 'pages');
                $page = $GLOBALS['TYPO3_DB']->exec_SELECTgetSingleRow('uid,hidden,starttime,endtime', 'pages', $pageSelectCondition . ' AND pid>=0 AND deleted=0');
                $workspace = $this->whichWorkspace();
                if ($workspace !== 0 && $workspace !== FALSE) {
                        // Fetch overlay of page if in workspace and check if it is hidden
                        $pageSelectObject = GeneralUtility::makeInstance(PageRepository::class);
                        $pageSelectObject->versioningPreview = TRUE;
                        $pageSelectObject->init(FALSE);
                        $targetPage = $pageSelectObject->getWorkspaceVersionOfRecord($this->whichWorkspace(), 'pages', $page['uid']);
                        $result = $targetPage === -1 || $targetPage === -2;
                } else {
                        $result = is_array($page) && ($page['hidden'] || $page['starttime'] > $GLOBALS['SIM_EXEC_TIME'] || $page['endtime'] != 0 && $page['endtime'] <= $GLOBALS['SIM_EXEC_TIME']);
                }
                return $result;
        }

        /**
         * Get The Page ID
         * This gets the id of the page, checks if the page is in the domain and if the page is accessible
         * Sets variables such as $this->sys_page, $this->loginUser, $this->gr_list, $this->id, $this->type, $this->domainStartPage
         *
         * @throws ServiceUnavailableException
         * @return void
         * @access private
         */
        public function fetch_the_id() {
                $GLOBALS['TT']->push('fetch_the_id initialize/', '');
                // Initialize the page-select functions.
                $this->sys_page = GeneralUtility::makeInstance(PageRepository::class);
                $this->sys_page->versioningPreview = $this->fePreview === 2 || (int)$this->workspacePreview || (bool)GeneralUtility::_GP('ADMCMD_view');
                $this->sys_page->versioningWorkspaceId = $this->whichWorkspace();
                $this->sys_page->init($this->showHiddenPage);
                // Set the valid usergroups for FE
                $this->initUserGroups();
                // Sets sys_page where-clause
                $this->setSysPageWhereClause();
                // Splitting $this->id by a period (.).
                // First part is 'id' and second part (if exists) will overrule the &type param
                $idParts = explode('.', $this->id, 2);
                $this->id = $idParts[0];
                if (isset($idParts[1])) {
                        $this->type = $idParts[1];
                }

                // If $this->id is a string, it's an alias
                $this->checkAndSetAlias();
                // The id and type is set to the integer-value - just to be sure...
                $this->id = (int)$this->id;
                $this->type = (int)$this->type;
                $GLOBALS['TT']->pull();
                // We find the first page belonging to the current domain
                $GLOBALS['TT']->push('fetch_the_id domain/', '');
                // The page_id of the current domain
                $this->domainStartPage = $this->findDomainRecord($this->TYPO3_CONF_VARS['SYS']['recursiveDomainSearch']);
                if (!$this->id) {
                        if ($this->domainStartPage) {
                                // If the id was not previously set, set it to the id of the domain.
                                $this->id = $this->domainStartPage;
                        } else {
                                // Find the first 'visible' page in that domain
                                $theFirstPage = $this->sys_page->getFirstWebPage($this->id);
                                if ($theFirstPage) {
                                        $this->id = $theFirstPage['uid'];
                                } else {
                                        $message = 'No pages are found on the rootlevel!';
                                        if ($this->checkPageUnavailableHandler()) {
                                                $this->pageUnavailableAndExit($message);
                                        } else {
                                                GeneralUtility::sysLog($message, 'cms', GeneralUtility::SYSLOG_SEVERITY_ERROR);
                                                throw new ServiceUnavailableException($message, 1301648975);
                                        }
                                }
                        }
                }
                $GLOBALS['TT']->pull();
                $GLOBALS['TT']->push('fetch_the_id rootLine/', '');
                // We store the originally requested id
                $this->requestedId = $this->id;
                $this->getPageAndRootlineWithDomain($this->domainStartPage);
                $GLOBALS['TT']->pull();
                if ($this->pageNotFound && $this->TYPO3_CONF_VARS['FE']['pageNotFound_handling']) {
                        $pNotFoundMsg = array(
                                1 => 'ID was not an accessible page',
                                2 => 'Subsection was found and not accessible',
                                3 => 'ID was outside the domain',
                                4 => 'The requested page alias does not exist'
                        );
                        $this->pageNotFoundAndExit($pNotFoundMsg[$this->pageNotFound]);
                }
                if ($this->page['url_scheme'] > 0) {
                        $newUrl = '';
                        $requestUrlScheme = parse_url(GeneralUtility::getIndpEnv('TYPO3_REQUEST_URL'), PHP_URL_SCHEME);
                        if ((int)$this->page['url_scheme'] === HttpUtility::SCHEME_HTTP && $requestUrlScheme == 'https') {
                                $newUrl = 'http://' . substr(GeneralUtility::getIndpEnv('TYPO3_REQUEST_URL'), 8);
                        } elseif ((int)$this->page['url_scheme'] === HttpUtility::SCHEME_HTTPS && $requestUrlScheme == 'http') {
                                $newUrl = 'https://' . substr(GeneralUtility::getIndpEnv('TYPO3_REQUEST_URL'), 7);
                        }
                        if ($newUrl !== '') {
                                if ($_SERVER['REQUEST_METHOD'] === 'POST') {
                                        $headerCode = HttpUtility::HTTP_STATUS_303;
                                } else {
                                        $headerCode = HttpUtility::HTTP_STATUS_301;
                                }
                                HttpUtility::redirect($newUrl, $headerCode);
                        }
                }
                // Set no_cache if set
                if ($this->page['no_cache']) {
                        $this->set_no_cache('no_cache is set in page properties');
                }
                // Init SYS_LASTCHANGED
                $this->register['SYS_LASTCHANGED'] = (int)$this->page['tstamp'];
                if ($this->register['SYS_LASTCHANGED'] < (int)$this->page['SYS_LASTCHANGED']) {
                        $this->register['SYS_LASTCHANGED'] = (int)$this->page['SYS_LASTCHANGED'];
                }
                if (is_array($this->TYPO3_CONF_VARS['SC_OPTIONS']['tslib/class.tslib_fe.php']['fetchPageId-PostProcessing'])) {
                        foreach ($this->TYPO3_CONF_VARS['SC_OPTIONS']['tslib/class.tslib_fe.php']['fetchPageId-PostProcessing'] as $functionReference) {
                                $parameters = array('parentObject' => $this);
                                GeneralUtility::callUserFunction($functionReference, $parameters, $this);
                        }
                }
        }

        /**
         * Gets the page and rootline arrays based on the id, $this->id
         *
         * If the id does not correspond to a proper page, the 'previous' valid page in the rootline is found
         * If the page is a shortcut (doktype=4), the ->id is loaded with that id
         *
         * Whether or not the ->id is changed to the shortcut id or the previous id in rootline (eg if a page is hidden), the ->page-array and ->rootline is found and must also be valid.
         *
         * Sets or manipulates internal variables such as: $this->id, $this->page, $this->rootLine, $this->MP, $this->pageNotFound
         *
         * @throws ServiceUnavailableException
         * @throws PageNotFoundException
         * @return void
         * @access private
         */
        public function getPageAndRootline() {
                $this->page = $this->sys_page->getPage($this->id);
                if (empty($this->page)) {
                        // If no page, we try to find the page before in the rootLine.
                        // Page is 'not found' in case the id itself was not an accessible page. code 1
                        $this->pageNotFound = 1;
                        $this->rootLine = $this->sys_page->getRootLine($this->id, $this->MP);
                        if (!empty($this->rootLine)) {
                                $c = count($this->rootLine) - 1;
                                while ($c > 0) {
                                        // Add to page access failure history:
                                        $this->pageAccessFailureHistory['direct_access'][] = $this->rootLine[$c];
                                        // Decrease to next page in rootline and check the access to that, if OK, set as page record and ID value.
                                        $c--;
                                        $this->id = $this->rootLine[$c]['uid'];
                                        $this->page = $this->sys_page->getPage($this->id);
                                        if (!empty($this->page)) {
                                                break;
                                        }
                                }
                        }
                        // If still no page...
                        if (empty($this->page)) {
                                $message = 'The requested page does not exist!';
                                if ($this->TYPO3_CONF_VARS['FE']['pageNotFound_handling']) {
                                        $this->pageNotFoundAndExit($message);
                                } else {
                                        GeneralUtility::sysLog($message, 'cms', GeneralUtility::SYSLOG_SEVERITY_ERROR);
                                        throw new PageNotFoundException($message, 1301648780);
                                }
                        }
                }
                // Spacer is not accessible in frontend
                if ($this->page['doktype'] == PageRepository::DOKTYPE_SPACER) {
                        $message = 'The requested page does not exist!';
                        if ($this->TYPO3_CONF_VARS['FE']['pageNotFound_handling']) {
                                $this->pageNotFoundAndExit($message);
                        } else {
                                GeneralUtility::sysLog($message, 'cms', GeneralUtility::SYSLOG_SEVERITY_ERROR);
                                throw new PageNotFoundException($message, 1301648781);
                        }
                }
                // Is the ID a link to another page??
                if ($this->page['doktype'] == PageRepository::DOKTYPE_SHORTCUT) {
                        // We need to clear MP if the page is a shortcut. Reason is if the short cut goes to another page, then we LEAVE the rootline which the MP expects.
                        $this->MP = '';
                        // saving the page so that we can check later - when we know
                        // about languages - whether we took the correct shortcut or
                        // whether a translation of the page overwrites the shortcut
                        // target and we need to follow the new target
                        $this->originalShortcutPage = $this->page;
                        $this->page = $this->getPageShortcut($this->page['shortcut'], $this->page['shortcut_mode'], $this->page['uid']);
                        $this->id = $this->page['uid'];
                }
                // If the page is a mountpoint which should be overlaid with the contents of the mounted page,
                // it must never be accessible directly, but only in the mountpoint context. Therefore we change
                // the current ID and the user is redirected by checkPageForMountpointRedirect().
                if ($this->page['doktype'] == PageRepository::DOKTYPE_MOUNTPOINT && $this->page['mount_pid_ol']) {
                        $this->originalMountPointPage = $this->page;
                        $this->page = $this->sys_page->getPage($this->page['mount_pid']);
                        if (empty($this->page)) {
                                $message = 'This page (ID ' . $this->originalMountPointPage['uid'] . ') is of type "Mount point" and '
                                        . 'mounts a page which is not accessible (ID ' . $this->originalMountPointPage['mount_pid'] . ').';
                                throw new PageNotFoundException($message, 1402043263);
                        }
                        $this->MP = $this->page['uid'] . '-' . $this->originalMountPointPage['uid'];
                        $this->id = $this->page['uid'];
                }
                // Gets the rootLine
                $this->rootLine = $this->sys_page->getRootLine($this->id, $this->MP);
                // If not rootline we're off...
                if (empty($this->rootLine)) {
                        $ws = $this->whichWorkspace();
                        if ($this->sys_page->error_getRootLine_failPid == -1 && $ws) {
                                $this->sys_page->versioningPreview = TRUE;
                                $this->sys_page->versioningWorkspaceId = $ws;
                                $this->rootLine = $this->sys_page->getRootLine($this->id, $this->MP);
                        }
                        if (empty($this->rootLine)) {
                                $message = 'The requested page didn\'t have a proper connection to the tree-root!';
                                if ($this->checkPageUnavailableHandler()) {
                                        $this->pageUnavailableAndExit($message);
                                } else {
                                        $rootline = '(' . $this->sys_page->error_getRootLine . ')';
                                        GeneralUtility::sysLog($message, 'cms', GeneralUtility::SYSLOG_SEVERITY_ERROR);
                                        throw new ServiceUnavailableException($message . '<br /><br />' . $rootline, 1301648167);
                                }
                        }
                        $this->fePreview = 1;
                }
                // Checking for include section regarding the hidden/starttime/endtime/fe_user (that is access control of a whole subbranch!)
                if ($this->checkRootlineForIncludeSection()) {
                        if (empty($this->rootLine)) {
                                $message = 'The requested page was not accessible!';
                                if ($this->checkPageUnavailableHandler()) {
                                        $this->pageUnavailableAndExit($message);
                                } else {
                                        GeneralUtility::sysLog($message, 'cms', GeneralUtility::SYSLOG_SEVERITY_ERROR);
                                        throw new ServiceUnavailableException($message, 1301648234);
                                }
                        } else {
                                $el = reset($this->rootLine);
                                $this->id = $el['uid'];
                                $this->page = $this->sys_page->getPage($this->id);
                                $this->rootLine = $this->sys_page->getRootLine($this->id, $this->MP);
                        }
                }
        }

        /**
         * Get page shortcut; Finds the records pointed to by input value $SC (the shortcut value)
         *
         * @param int $SC The value of the "shortcut" field from the pages record
         * @param int $mode The shortcut mode: 1 will select first subpage, 2 a random subpage, 3 the parent page; default is the page pointed to by $SC
         * @param int $thisUid The current page UID of the page which is a shortcut
         * @param int $itera Safety feature which makes sure that the function is calling itself recursively max 20 times (since this function can find shortcuts to other shortcuts to other shortcuts...)
         * @param array $pageLog An array filled with previous page uids tested by the function - new page uids are evaluated against this to avoid going in circles.
         * @param bool $disableGroupCheck If true, the group check is disabled when fetching the target page (needed e.g. for menu generation)
         * @throws \RuntimeException
         * @throws PageNotFoundException
         * @return mixed Returns the page record of the page that the shortcut pointed to.
         * @access private
         * @see getPageAndRootline()
         */
        public function getPageShortcut($SC, $mode, $thisUid, $itera = 20, $pageLog = array(), $disableGroupCheck = FALSE) {
                $idArray = GeneralUtility::intExplode(',', $SC);
                // Find $page record depending on shortcut mode:
                switch ($mode) {
                        case PageRepository::SHORTCUT_MODE_FIRST_SUBPAGE:

                        case PageRepository::SHORTCUT_MODE_RANDOM_SUBPAGE:
                                $pageArray = $this->sys_page->getMenu($idArray[0] ? $idArray[0] : $thisUid, '*', 'sorting', 'AND pages.doktype<199 AND pages.doktype!=' . PageRepository::DOKTYPE_BE_USER_SECTION);
                                $pO = 0;
                                if ($mode == PageRepository::SHORTCUT_MODE_RANDOM_SUBPAGE && !empty($pageArray)) {
                                        $randval = (int)rand(0, count($pageArray) - 1);
                                        $pO = $randval;
                                }
                                $c = 0;
                                foreach ($pageArray as $pV) {
                                        if ($c == $pO) {
                                                $page = $pV;
                                                break;
                                        }
                                        $c++;
                                }
                                if (empty($page)) {
                                        $message = 'This page (ID ' . $thisUid . ') is of type "Shortcut" and configured to redirect to a subpage. ' . 'However, this page has no accessible subpages.';
                                        throw new PageNotFoundException($message, 1301648328);
                                }
                                break;
                        case PageRepository::SHORTCUT_MODE_PARENT_PAGE:
                                $parent = $this->sys_page->getPage($idArray[0] ? $idArray[0] : $thisUid, $disableGroupCheck);
                                $page = $this->sys_page->getPage($parent['pid'], $disableGroupCheck);
                                if (empty($page)) {
                                        $message = 'This page (ID ' . $thisUid . ') is of type "Shortcut" and configured to redirect to its parent page. ' . 'However, the parent page is not accessible.';
                                        throw new PageNotFoundException($message, 1301648358);
                                }
                                break;
                        default:
                                $page = $this->sys_page->getPage($idArray[0], $disableGroupCheck);
                                if (empty($page)) {
                                        $message = 'This page (ID ' . $thisUid . ') is of type "Shortcut" and configured to redirect to a page, which is not accessible (ID ' . $idArray[0] . ').';
                                        throw new PageNotFoundException($message, 1301648404);
                                }
                }
                // Check if short cut page was a shortcut itself, if so look up recursively:
                if ($page['doktype'] == PageRepository::DOKTYPE_SHORTCUT) {
                        if (!in_array($page['uid'], $pageLog) && $itera > 0) {
                                $pageLog[] = $page['uid'];
                                $page = $this->getPageShortcut($page['shortcut'], $page['shortcut_mode'], $page['uid'], $itera - 1, $pageLog, $disableGroupCheck);
                        } else {
                                $pageLog[] = $page['uid'];
                                $message = 'Page shortcuts were looping in uids ' . implode(',', $pageLog) . '...!';
                                GeneralUtility::sysLog($message, 'cms', GeneralUtility::SYSLOG_SEVERITY_ERROR);
                                throw new \RuntimeException($message, 1294587212);
                        }
                }
                // Return resulting page:
                return $page;
        }

        /**
         * Checks the current rootline for defined sections.
         *
         * @return bool
         * @access private
         */
        public function checkRootlineForIncludeSection() {
                $c = count($this->rootLine);
                $removeTheRestFlag = 0;
                for ($a = 0; $a < $c; $a++) {
                        if (!$this->checkPagerecordForIncludeSection($this->rootLine[$a])) {
                                // Add to page access failure history:
                                $this->pageAccessFailureHistory['sub_section'][] = $this->rootLine[$a];
                                $removeTheRestFlag = 1;
                        }
                        if ($this->rootLine[$a]['doktype'] == PageRepository::DOKTYPE_BE_USER_SECTION) {
                                // If there is a backend user logged in, check if he has read access to the page:
                                if ($this->beUserLogin) {
                                        $res = $GLOBALS['TYPO3_DB']->exec_SELECTquery('uid', 'pages', 'uid=' . (int)$this->id . ' AND ' . $GLOBALS['BE_USER']->getPagePermsClause(1));
                                        // versionOL()?
                                        list($isPage) = $GLOBALS['TYPO3_DB']->sql_fetch_row($res);
                                        if (!$isPage) {
                                                // If there was no page selected, the user apparently did not have read access to the current PAGE (not position in rootline) and we set the remove-flag...
                                                $removeTheRestFlag = 1;
                                        }
                                } else {
                                        // Dont go here, if there is no backend user logged in.
                                        $removeTheRestFlag = 1;
                                }
                        }
                        if ($removeTheRestFlag) {
                                // Page is 'not found' in case a subsection was found and not accessible, code 2
                                $this->pageNotFound = 2;
                                unset($this->rootLine[$a]);
                        }
                }
                return $removeTheRestFlag;
        }

        /**
         * Checks page record for enableFields
         * Returns TRUE if enableFields does not disable the page record.
         * Takes notice of the ->showHiddenPage flag and uses SIM_ACCESS_TIME for start/endtime evaluation
         *
         * @param array $row The page record to evaluate (needs fields: hidden, starttime, endtime, fe_group)
         * @param bool $bypassGroupCheck Bypass group-check
         * @return bool TRUE, if record is viewable.
         * @see TYPO3\\CMS\\Frontend\\ContentObject\\ContentObjectRenderer::getTreeList(), checkPagerecordForIncludeSection()
         */
        public function checkEnableFields($row, $bypassGroupCheck = FALSE) {
                if (isset($this->TYPO3_CONF_VARS['SC_OPTIONS']['tslib/class.tslib_fe.php']['hook_checkEnableFields']) && is_array($this->TYPO3_CONF_VARS['SC_OPTIONS']['tslib/class.tslib_fe.php']['hook_checkEnableFields'])) {
                        $_params = array('pObj' => $this, 'row' => &$row, 'bypassGroupCheck' => &$bypassGroupCheck);
                        foreach ($this->TYPO3_CONF_VARS['SC_OPTIONS']['tslib/class.tslib_fe.php']['hook_checkEnableFields'] as $_funcRef) {
                                // Call hooks: If one returns FALSE, method execution is aborted with result "This record is not available"
                                $return = GeneralUtility::callUserFunction($_funcRef, $_params, $this);
                                if ($return === FALSE) {
                                        return FALSE;
                                }
                        }
                }
                if ((!$row['hidden'] || $this->showHiddenPage) && $row['starttime'] <= $GLOBALS['SIM_ACCESS_TIME'] && ($row['endtime'] == 0 || $row['endtime'] > $GLOBALS['SIM_ACCESS_TIME']) && ($bypassGroupCheck || $this->checkPageGroupAccess($row))) {
                        return TRUE;
                }
        }

        /**
         * Check group access against a page record
         *
         * @param array $row The page record to evaluate (needs field: fe_group)
         * @param mixed $groupList List of group id's (comma list or array). Default is $this->gr_list
         * @return bool TRUE, if group access is granted.
         * @access private
         */
        public function checkPageGroupAccess($row, $groupList = NULL) {
                if (is_null($groupList)) {
                        $groupList = $this->gr_list;
                }
                if (!is_array($groupList)) {
                        $groupList = explode(',', $groupList);
                }
                $pageGroupList = explode(',', $row['fe_group'] ?: 0);
                return count(array_intersect($groupList, $pageGroupList)) > 0;
        }

        /**
         * Checks page record for include section
         *
         * @param array $row The page record to evaluate (needs fields: extendToSubpages + hidden, starttime, endtime, fe_group)
         * @return bool Returns TRUE if either extendToSubpages is not checked or if the enableFields does not disable the page record.
         * @access private
         * @see checkEnableFields(), TYPO3\\CMS\\Frontend\\ContentObject\\ContentObjectRenderer::getTreeList(), checkRootlineForIncludeSection()
         */
        public function checkPagerecordForIncludeSection($row) {
                return !$row['extendToSubpages'] || $this->checkEnableFields($row) ? 1 : 0;
        }

        /**
         * Checks if logins are allowed in the current branch of the page tree. Traverses the full root line and returns TRUE if logins are OK, otherwise FALSE (and then the login user must be unset!)
         *
         * @return bool returns TRUE if logins are OK, otherwise FALSE (and then the login user must be unset!)
         */
        public function checkIfLoginAllowedInBranch() {
                // Initialize:
                $c = count($this->rootLine);
                $disable = FALSE;
                // Traverse root line from root and outwards:
                for ($a = 0; $a < $c; $a++) {
                        // If a value is set for login state:
                        if ($this->rootLine[$a]['fe_login_mode'] > 0) {
                                // Determine state from value:
                                if ((int)$this->rootLine[$a]['fe_login_mode'] === 1) {
                                        $disable = TRUE;
                                        $this->loginAllowedInBranch_mode = 'all';
                                } elseif ((int)$this->rootLine[$a]['fe_login_mode'] === 3) {
                                        $disable = TRUE;
                                        $this->loginAllowedInBranch_mode = 'groups';
                                } else {
                                        $disable = FALSE;
                                }
                        }
                }
                return !$disable;
        }

        /**
         * Analysing $this->pageAccessFailureHistory into a summary array telling which features disabled display and on which pages and conditions. That data can be used inside a page-not-found handler
         *
         * @return array Summary of why page access was not allowed.
         */
        public function getPageAccessFailureReasons() {
                $output = array();
                $combinedRecords = array_merge(is_array($this->pageAccessFailureHistory['direct_access']) ? $this->pageAccessFailureHistory['direct_access'] : array(array('fe_group' => 0)), is_array($this->pageAccessFailureHistory['sub_section']) ? $this->pageAccessFailureHistory['sub_section'] : array());
                if (!empty($combinedRecords)) {
                        foreach ($combinedRecords as $k => $pagerec) {
                                // If $k=0 then it is the very first page the original ID was pointing at and that will get a full check of course
                                // If $k>0 it is parent pages being tested. They are only significant for the access to the first page IF they had the extendToSubpages flag set, hence checked only then!
                                if (!$k || $pagerec['extendToSubpages']) {
                                        if ($pagerec['hidden']) {
                                                $output['hidden'][$pagerec['uid']] = TRUE;
                                        }
                                        if ($pagerec['starttime'] > $GLOBALS['SIM_ACCESS_TIME']) {
                                                $output['starttime'][$pagerec['uid']] = $pagerec['starttime'];
                                        }
                                        if ($pagerec['endtime'] != 0 && $pagerec['endtime'] <= $GLOBALS['SIM_ACCESS_TIME']) {
                                                $output['endtime'][$pagerec['uid']] = $pagerec['endtime'];
                                        }
                                        if (!$this->checkPageGroupAccess($pagerec)) {
                                                $output['fe_group'][$pagerec['uid']] = $pagerec['fe_group'];
                                        }
                                }
                        }
                }
                return $output;
        }

        /**
         * This checks if there are ARGV-parameters in the QUERY_STRING and if so, those are used for the id
         * $this->id must be 'FALSE' in order for any processing to happen in here
         * If an id/alias value is extracted from the QUERY_STRING it is set in $this->id
         *
         * @return void
         * @access private
         */
        public function setIDfromArgV() {
                if (!$this->id) {
                        list($theAlias) = explode('&', GeneralUtility::getIndpEnv('QUERY_STRING'));
                        $theAlias = trim($theAlias);
                        $this->id = $theAlias != '' && strpos($theAlias, '=') === FALSE ? $theAlias : 0;
                }
        }

        /**
         * Gets ->page and ->rootline information based on ->id. ->id may change during this operation.
         * If not inside domain, then default to first page in domain.
         *
         * @param int $domainStartPage Page uid of the page where the found domain record is (pid of the domain record)
         * @return void
         * @access private
         */
        public function getPageAndRootlineWithDomain($domainStartPage) {
                $this->getPageAndRootline();
                // Checks if the $domain-startpage is in the rootLine. This is necessary so that references to page-id's from other domains are not possible.
                if ($domainStartPage && is_array($this->rootLine)) {
                        $idFound = 0;
                        foreach ($this->rootLine as $key => $val) {
                                if ($val['uid'] == $domainStartPage) {
                                        $idFound = 1;
                                        break;
                                }
                        }
                        if (!$idFound) {
                                // Page is 'not found' in case the id was outside the domain, code 3
                                $this->pageNotFound = 3;
                                $this->id = $domainStartPage;
                                // re-get the page and rootline if the id was not found.
                                $this->getPageAndRootline();
                        }
                }
        }

        /**
         * Sets sys_page where-clause
         *
         * @return void
         * @access private
         */
        public function setSysPageWhereClause() {
                $this->sys_page->where_hid_del .= ' AND pages.doktype<200';
                $this->sys_page->where_groupAccess = $this->sys_page->getMultipleGroupsWhereClause('pages.fe_group', 'pages');
        }

        /**
         * Looking up a domain record based on HTTP_HOST
         *
         * @param bool $recursive If set, it looks "recursively" meaning that a domain like "123.456.typo3.com" would find a domain record like "typo3.com" if "123.456.typo3.com" or "456.typo3.com" did not exist.
         * @return int Returns the page id of the page where the domain record was found.
         * @access private
         */
        public function findDomainRecord($recursive = FALSE) {
                if ($recursive) {
                        $host = explode('.', GeneralUtility::getIndpEnv('HTTP_HOST'));
                        while (count($host)) {
                                $pageUid = $this->sys_page->getDomainStartPage(implode('.', $host), GeneralUtility::getIndpEnv('SCRIPT_NAME'), GeneralUtility::getIndpEnv('REQUEST_URI'));
                                if ($pageUid) {
                                        return $pageUid;
                                } else {
                                        array_shift($host);
                                }
                        }
                        return $pageUid;
                } else {
                        return $this->sys_page->getDomainStartPage(GeneralUtility::getIndpEnv('HTTP_HOST'), GeneralUtility::getIndpEnv('SCRIPT_NAME'), GeneralUtility::getIndpEnv('REQUEST_URI'));
                }
        }

        /**
         * Page unavailable handler for use in frontend plugins from extensions.
         *
         * @param string $reason Reason text
         * @param string $header HTTP header to send
         * @return void Function exits.
         */
        public function pageUnavailableAndExit($reason = '', $header = '') {
                $header = $header ?: $this->TYPO3_CONF_VARS['FE']['pageUnavailable_handling_statheader'];
                $this->pageUnavailableHandler($this->TYPO3_CONF_VARS['FE']['pageUnavailable_handling'], $header, $reason);
                die;
        }

        /**
         * Page-not-found handler for use in frontend plugins from extensions.
         *
         * @param string $reason Reason text
         * @param string $header HTTP header to send
         * @return void Function exits.
         */
        public function pageNotFoundAndExit($reason = '', $header = '') {
                $header = $header ?: $this->TYPO3_CONF_VARS['FE']['pageNotFound_handling_statheader'];
                $this->pageNotFoundHandler($this->TYPO3_CONF_VARS['FE']['pageNotFound_handling'], $header, $reason);
                die;
        }

        /**
         * Checks whether the pageUnavailableHandler should be used. To be used, pageUnavailable_handling must be set
         * and devIPMask must not match the current visitor's IP address.
         *
         * @return bool TRUE/FALSE whether the pageUnavailable_handler should be used.
         */
        public function checkPageUnavailableHandler() {
                if (
                        $this->TYPO3_CONF_VARS['FE']['pageUnavailable_handling']
                        && !GeneralUtility::cmpIP(
                                GeneralUtility::getIndpEnv('REMOTE_ADDR'),
                                $this->TYPO3_CONF_VARS['SYS']['devIPmask']
                        )
                ) {
                        $checkPageUnavailableHandler = TRUE;
                } else {
                        $checkPageUnavailableHandler = FALSE;
                }
                return $checkPageUnavailableHandler;
        }

        /**
         * Page unavailable handler. Acts a wrapper for the pageErrorHandler method.
         *
         * @param mixed $code Which type of handling; If a true PHP-boolean or TRUE then a \TYPO3\CMS\Core\Messaging\ErrorpageMessage is outputted. If integer an error message with that number is shown. Otherwise the $code value is expected to be a "Location:" header value.
         * @param string $header If set, this is passed directly to the PHP function, header()
         * @param string $reason If set, error messages will also mention this as the reason for the page-not-found.
         * @return void (The function exits!)
         */
        public function pageUnavailableHandler($code, $header, $reason) {
                $this->pageErrorHandler($code, $header, $reason);
        }

        /**
         * Page not found handler. Acts a wrapper for the pageErrorHandler method.
         *
         * @param mixed $code Which type of handling; If a true PHP-boolean or TRUE then a \TYPO3\CMS\Core\Messaging\ErrorpageMessage is outputted. If integer an error message with that number is shown. Otherwise the $code value is expected to be a "Location:" header value.
         * @param string $header If set, this is passed directly to the PHP function, header()
         * @param string $reason If set, error messages will also mention this as the reason for the page-not-found.
         * @return void (The function exits!)
         */
        public function pageNotFoundHandler($code, $header = '', $reason = '') {
                $this->pageErrorHandler($code, $header, $reason);
        }

        /**
         * Generic error page handler.
         * Exits.
         *
         * @param mixed $code Which type of handling; If a true PHP-boolean or TRUE then a \TYPO3\CMS\Core\Messaging\ErrorpageMessage is outputted. If integer an error message with that number is shown. Otherwise the $code value is expected to be a "Location:" header value.
         * @param string $header If set, this is passed directly to the PHP function, header()
         * @param string $reason If set, error messages will also mention this as the reason for the page-not-found.
         * @throws \RuntimeException
         * @return void (The function exits!)
         */
        public function pageErrorHandler($code, $header = '', $reason = '') {
                // Issue header in any case:
                if ($header) {
                        $headerArr = preg_split('/\\r|\\n/', $header, -1, PREG_SPLIT_NO_EMPTY);
                        foreach ($headerArr as $header) {
                                header($header);
                        }
                }
                // Create response:
                // Simply boolean; Just shows TYPO3 error page with reason:
                if (gettype($code) == 'boolean' || (string)$code === '1') {
                        $title = 'Page Not Found';
                        $message = 'The page did not exist or was inaccessible.' . ($reason ? ' Reason: ' . htmlspecialchars($reason) : '');
                        $messagePage = GeneralUtility::makeInstance(ErrorpageMessage::class, $message, $title);
                        $messagePage->output();
                        die;
                } elseif (GeneralUtility::isFirstPartOfStr($code, 'USER_FUNCTION:')) {
                        $funcRef = trim(substr($code, 14));
                        $params = array(
                                'currentUrl' => GeneralUtility::getIndpEnv('REQUEST_URI'),
                                'reasonText' => $reason,
                                'pageAccessFailureReasons' => $this->getPageAccessFailureReasons()
                        );
                        echo GeneralUtility::callUserFunction($funcRef, $params, $this);
                } elseif (GeneralUtility::isFirstPartOfStr($code, 'READFILE:')) {
                        $readFile = GeneralUtility::getFileAbsFileName(trim(substr($code, 9)));
                        if (@is_file($readFile)) {
                                echo str_replace(
                                        array(
                                                '###CURRENT_URL###',
                                                '###REASON###'
                                        ),
                                        array(
                                                GeneralUtility::getIndpEnv('REQUEST_URI'),
                                                htmlspecialchars($reason)
                                        ),
                                        GeneralUtility::getUrl($readFile)
                                );
                        } else {
                                throw new \RuntimeException('Configuration Error: 404 page "' . $readFile . '" could not be found.', 1294587214);
                        }
                } elseif (GeneralUtility::isFirstPartOfStr($code, 'REDIRECT:')) {
                        HttpUtility::redirect(substr($code, 9));
                } elseif ($code !== '') {
                        // Check if URL is relative
                        $url_parts = parse_url($code);
                        if ($url_parts['host'] == '') {
                                $url_parts['host'] = GeneralUtility::getIndpEnv('HTTP_HOST');
                                if ($code[0] === '/') {
                                        $code = GeneralUtility::getIndpEnv('TYPO3_REQUEST_HOST') . $code;
                                } else {
                                        $code = GeneralUtility::getIndpEnv('TYPO3_REQUEST_DIR') . $code;
                                }
                                $checkBaseTag = FALSE;
                        } else {
                                $checkBaseTag = TRUE;
                        }
                        // Check recursion
                        if ($code == GeneralUtility::getIndpEnv('TYPO3_REQUEST_URL')) {
                                if ($reason == '') {
                                        $reason = 'Page cannot be found.';
                                }
                                $reason .= LF . LF . 'Additionally, ' . $code . ' was not found while trying to retrieve the error document.';
                                throw new \RuntimeException(nl2br(htmlspecialchars($reason)), 1294587215);
                        }
                        // Prepare headers
                        $headerArr = array(
                                'User-agent: ' . GeneralUtility::getIndpEnv('HTTP_USER_AGENT'),
                                'Referer: ' . GeneralUtility::getIndpEnv('TYPO3_REQUEST_URL')
                        );
                        $res = GeneralUtility::getUrl($code, 1, $headerArr);
                        // Header and content are separated by an empty line
                        list($header, $content) = explode(CRLF . CRLF, $res, 2);
                        $content .= CRLF;
                        if (FALSE === $res) {
                                // Last chance -- redirect
                                HttpUtility::redirect($code);
                        } else {
                                // Forward these response headers to the client
                                $forwardHeaders = array(
                                        'Content-Type:'
                                );
                                $headerArr = preg_split('/\\r|\\n/', $header, -1, PREG_SPLIT_NO_EMPTY);
                                foreach ($headerArr as $header) {
                                        foreach ($forwardHeaders as $h) {
                                                if (preg_match('/^' . $h . '/', $header)) {
                                                        header($header);
                                                }
                                        }
                                }
                                // Put <base> if necesary
                                if ($checkBaseTag) {
                                        // If content already has <base> tag, we do not need to do anything
                                        if (FALSE === stristr($content, '<base ')) {
                                                // Generate href for base tag
                                                $base = $url_parts['scheme'] . '://';
                                                if ($url_parts['user'] != '') {
                                                        $base .= $url_parts['user'];
                                                        if ($url_parts['pass'] != '') {
                                                                $base .= ':' . $url_parts['pass'];
                                                        }
                                                        $base .= '@';
                                                }
                                                $base .= $url_parts['host'];
                                                // Add path portion skipping possible file name
                                                $base .= preg_replace('/(.*\\/)[^\\/]*/', '${1}', $url_parts['path']);
                                                // Put it into content (generate also <head> if necessary)
                                                $replacement = LF . '<base href="' . htmlentities($base) . '" />' . LF;
                                                if (stristr($content, '<head>')) {
                                                        $content = preg_replace('/(<head>)/i', '\\1' . $replacement, $content);
                                                } else {
                                                        $content = preg_replace('/(<html[^>]*>)/i', '\\1<head>' . $replacement . '</head>', $content);
                                                }
                                        }
                                }
                                // Output the content
                                echo $content;
                        }
                } else {
                        $title = 'Page Not Found';
                        $message = $reason ? 'Reason: ' . htmlspecialchars($reason) : 'Page cannot be found.';
                        $messagePage = GeneralUtility::makeInstance(ErrorpageMessage::class, $message, $title);
                        $messagePage->output();
                }
                die;
        }

        /**
         * Fetches the integer page id for a page alias.
         * Looks if ->id is not an integer and if so it will search for a page alias and if found the page uid of that page is stored in $this->id
         *
         * @return void
         * @access private
         */
        public function checkAndSetAlias() {
                if ($this->id && !MathUtility::canBeInterpretedAsInteger($this->id)) {
                        $aid = $this->sys_page->getPageIdFromAlias($this->id);
                        if ($aid) {
                                $this->id = $aid;
                        } else {
                                $this->pageNotFound = 4;
                        }
                }
        }

        /**
         * Merging values into the global $_GET
         *
         * @param array $GET_VARS Array of key/value pairs that will be merged into the current GET-vars. (Non-escaped values)
         * @return void
         */
        public function mergingWithGetVars($GET_VARS) {
                if (is_array($GET_VARS)) {
                        // Getting $_GET var, unescaped.
                        $realGet = GeneralUtility::_GET();
                        if (!is_array($realGet)) {
                                $realGet = array();
                        }
                        // Merge new values on top:
                        ArrayUtility::mergeRecursiveWithOverrule($realGet, $GET_VARS);
                        // Write values back to $_GET:
                        GeneralUtility::_GETset($realGet);
                        // Setting these specifically (like in the init-function):
                        if (isset($GET_VARS['type'])) {
                                $this->type = (int)$GET_VARS['type'];
                        }
                        if (isset($GET_VARS['cHash'])) {
                                $this->cHash = $GET_VARS['cHash'];
                        }
                        if (isset($GET_VARS['jumpurl'])) {
                                $this->jumpurl = $GET_VARS['jumpurl'];
                        }
                        if (isset($GET_VARS['MP'])) {
                                $this->MP = $this->TYPO3_CONF_VARS['FE']['enable_mount_pids'] ? $GET_VARS['MP'] : '';
                        }
                        if (isset($GET_VARS['no_cache']) && $GET_VARS['no_cache']) {
                                $this->set_no_cache('no_cache is requested via GET parameter');
                        }
                }
        }

        /********************************************
         *
         * Template and caching related functions.
         *
         *******************************************/
        /**
         * Calculates a hash string based on additional parameters in the url.
         *
         * Calculated hash is stored in $this->cHash_array.
         * This is used to cache pages with more parameters than just id and type.
         *
         * @return void
         * @see reqCHash()
         */
        public function makeCacheHash() {
                // No need to test anything if caching was already disabled.
                if ($this->no_cache && !$this->TYPO3_CONF_VARS['FE']['pageNotFoundOnCHashError']) {
                        return;
                }
                $GET = GeneralUtility::_GET();
                if ($this->cHash && is_array($GET)) {
                        $this->cHash_array = $this->cacheHash->getRelevantParameters(GeneralUtility::implodeArrayForUrl('', $GET));
                        $cHash_calc = $this->cacheHash->calculateCacheHash($this->cHash_array);
                        if ($cHash_calc != $this->cHash) {
                                if ($this->TYPO3_CONF_VARS['FE']['pageNotFoundOnCHashError']) {
                                        $this->pageNotFoundAndExit('Request parameters could not be validated (&cHash comparison failed)');
                                } else {
                                        $this->disableCache();
                                        $GLOBALS['TT']->setTSlogMessage('The incoming cHash "' . $this->cHash . '" and calculated cHash "' . $cHash_calc . '" did not match, so caching was disabled. The fieldlist used was "' . implode(',', array_keys($this->cHash_array)) . '"', 2);
                                }
                        }
                } elseif (is_array($GET)) {
                        // No cHash is set, check if that is correct
                        if ($this->cacheHash->doParametersRequireCacheHash(GeneralUtility::implodeArrayForUrl('', $GET))) {
                                $this->reqCHash();
                        }
                }
        }

        /**
         * Will disable caching if the cHash value was not set.
         * This function should be called to check the _existence_ of "&cHash" whenever a plugin generating cacheable output is using extra GET variables. If there _is_ a cHash value the validation of it automatically takes place in makeCacheHash() (see above)
         *
         * @return void
         * @see makeCacheHash(), \TYPO3\CMS\Frontend\Plugin\AbstractPlugin::pi_cHashCheck()
         */
        public function reqCHash() {
                if (!$this->cHash) {
                        if ($this->TYPO3_CONF_VARS['FE']['pageNotFoundOnCHashError']) {
                                if ($this->tempContent) {
                                        $this->clearPageCacheContent();
                                }
                                $this->pageNotFoundAndExit('Request parameters could not be validated (&cHash empty)');
                        } else {
                                $this->disableCache();
                                $GLOBALS['TT']->setTSlogMessage('TSFE->reqCHash(): No &cHash parameter was sent for GET vars though required so caching is disabled', 2);
                        }
                }
        }

        /**
         * Initialize the TypoScript template parser
         *
         * @return void
         */
        public function initTemplate() {
                $this->tmpl = GeneralUtility::makeInstance(TemplateService::class);
                $this->tmpl->setVerbose((bool)$this->beUserLogin);
                $this->tmpl->init();
                $this->tmpl->tt_track = (bool)$this->beUserLogin;
        }

        /**
         * See if page is in cache and get it if so
         * Stores the page content in $this->content if something is found.
         *
         * @throws \InvalidArgumentException
         * @throws \RuntimeException
         */
        public function getFromCache() {
                // clearing the content-variable, which will hold the pagecontent
                $this->content = '';
                // Unsetting the lowlevel config
                unset($this->config);
                $this->cacheContentFlag = FALSE;

                if ($this->no_cache) {
                        return;
                }

                $pageSectionCacheContent = $this->tmpl->getCurrentPageData();
                if (!is_array($pageSectionCacheContent)) {
                        // Nothing in the cache, we acquire an "exclusive lock" for the key now.
                        // We use the Registry to store this lock centrally,
                        // but we protect the access again with a global exclusive lock to avoid race conditions

                        $this->acquireLock('pagesection', $this->id . '::' . $this->MP);
                        //
                        // from this point on we're the only one working on that page ($key)
                        //

                        // query the cache again to see if the page data are there meanwhile
                        $pageSectionCacheContent = $this->tmpl->getCurrentPageData();
                        if (is_array($pageSectionCacheContent)) {
                                // we have the content, nice that some other process did the work for us already
                                $this->releaseLock('pagesection');
                        } else {
                                // We keep the lock set, because we are the ones generating the page now
                                // and filling the cache.
                                // This indicates that we have to release the lock in the Registry later in releaseLocks()
                        }
                }

                if (is_array($pageSectionCacheContent)) {
                        // BE CAREFUL to change the content of the cc-array. This array is serialized and an md5-hash based on this is used for caching the page.
                        // If this hash is not the same in here in this section and after page-generation, then the page will not be properly cached!
                        // This array is an identification of the template. If $this->all is empty it's because the template-data is not cached, which it must be.
                        $pageSectionCacheContent = $this->tmpl->matching($pageSectionCacheContent);
                        ksort($pageSectionCacheContent);
                        $this->all = $pageSectionCacheContent;
                }
                unset($pageSectionCacheContent);

                // Look for page in cache only if a shift-reload is not sent to the server.
                $lockHash = $this->getLockHash();
                if (!$this->headerNoCache()) {
                        if ($this->all) {
                                // we got page section information
                                $this->newHash = $this->getHash();
                                $GLOBALS['TT']->push('Cache Row', '');
                                $row = $this->getFromCache_queryRow();
                                if (!is_array($row)) {
                                        // nothing in the cache, we acquire an exclusive lock now

                                        $this->acquireLock('pages', $lockHash);
                                        //
                                        // from this point on we're the only one working on that page ($lockHash)
                                        //

                                        // query the cache again to see if the data are there meanwhile
                                        $row = $this->getFromCache_queryRow();
                                        if (is_array($row)) {
                                                // we have the content, nice that some other process did the work for us
                                                $this->releaseLock('pages');
                                        } else {
                                                // We keep the lock set, because we are the ones generating the page now
                                                // and filling the cache.
                                                // This indicates that we have to release the lock in the Registry later in releaseLocks()
                                        }
                                }
                                if (is_array($row)) {
                                        // we have data from cache

                                        // Call hook when a page is retrieved from cache:
                                        if (is_array($this->TYPO3_CONF_VARS['SC_OPTIONS']['tslib/class.tslib_fe.php']['pageLoadedFromCache'])) {
                                                $_params = array('pObj' => &$this, 'cache_pages_row' => &$row);
                                                foreach ($this->TYPO3_CONF_VARS['SC_OPTIONS']['tslib/class.tslib_fe.php']['pageLoadedFromCache'] as $_funcRef) {
                                                        GeneralUtility::callUserFunction($_funcRef, $_params, $this);
                                                }
                                        }
                                        // Fetches the lowlevel config stored with the cached data
                                        $this->config = $row['cache_data'];
                                        // Getting the content
                                        $this->content = $row['content'];
                                        // Flag for temp content
                                        $this->tempContent = $row['temp_content'];
                                        // Setting flag, so we know, that some cached content has been loaded
                                        $this->cacheContentFlag = TRUE;
                                        $this->cacheExpires = $row['expires'];

                                        // Restore page title information, this is needed to generate the page title for
                                        // partially cached pages.
                                        $this->page['title'] = $row['pageTitleInfo']['title'];
                                        $this->altPageTitle = $row['pageTitleInfo']['altPageTitle'];
                                        $this->indexedDocTitle = $row['pageTitleInfo']['indexedDocTitle'];

                                        if (isset($this->config['config']['debug'])) {
                                                $debugCacheTime = (bool)$this->config['config']['debug'];
                                        } else {
                                                $debugCacheTime = !empty($this->TYPO3_CONF_VARS['FE']['debug']);
                                        }
                                        if ($debugCacheTime) {
                                                $dateFormat = $GLOBALS['TYPO3_CONF_VARS']['SYS']['ddmmyy'];
                                                $timeFormat = $GLOBALS['TYPO3_CONF_VARS']['SYS']['hhmm'];
                                                $this->content .= LF . '<!-- Cached page generated ' . date(($dateFormat . ' ' . $timeFormat), $row['tstamp']) . '. Expires ' . Date(($dateFormat . ' ' . $timeFormat), $row['expires']) . ' -->';
                                        }
                                }
                                $GLOBALS['TT']->pull();

                                return;
                        }
                }
                // the user forced rebuilding the page cache or there was no pagesection information
                // get a lock for the page content so other processes will not interrupt the regeneration
                $this->acquireLock('pages', $lockHash);
        }

        /**
         * Returning the cached version of page with hash = newHash
         *
         * @return array Cached row, if any. Otherwise void.
         */
        public function getFromCache_queryRow() {
                $GLOBALS['TT']->push('Cache Query', '');
                $row = $this->pageCache->get($this->newHash);
                $GLOBALS['TT']->pull();
                return $row;
        }

        /**
         * Detecting if shift-reload has been clicked
         * Will not be called if re-generation of page happens by other reasons (for instance that the page is not in cache yet!)
         * Also, a backend user MUST be logged in for the shift-reload to be detected due to DoS-attack-security reasons.
         *
         * @return bool If shift-reload in client browser has been clicked, disable getting cached page (and regenerate it).
         */
        public function headerNoCache() {
                $disableAcquireCacheData = FALSE;
                if ($this->beUserLogin) {
                        if (strtolower($_SERVER['HTTP_CACHE_CONTROL']) === 'no-cache' || strtolower($_SERVER['HTTP_PRAGMA']) === 'no-cache') {
                                $disableAcquireCacheData = TRUE;
                        }
                }
                // Call hook for possible by-pass of requiring of page cache (for recaching purpose)
                if (is_array($this->TYPO3_CONF_VARS['SC_OPTIONS']['tslib/class.tslib_fe.php']['headerNoCache'])) {
                        $_params = array('pObj' => &$this, 'disableAcquireCacheData' => &$disableAcquireCacheData);
                        foreach ($this->TYPO3_CONF_VARS['SC_OPTIONS']['tslib/class.tslib_fe.php']['headerNoCache'] as $_funcRef) {
                                GeneralUtility::callUserFunction($_funcRef, $_params, $this);
                        }
                }
                return $disableAcquireCacheData;
        }

        /**
         * Calculates the cache-hash
         * This hash is unique to the template, the variables ->id, ->type, ->gr_list (list of groups), ->MP (Mount Points) and cHash array
         * Used to get and later store the cached data.
         *
         * @return string MD5 hash of serialized hash base from createHashBase()
         * @access private
         * @see getFromCache(), getLockHash()
         */
        public function getHash() {
                return md5($this->createHashBase(FALSE));
        }

        /**
         * Calculates the lock-hash
         * This hash is unique to the above hash, except that it doesn't contain the template information in $this->all.
         *
         * @return string MD5 hash
         * @access private
         * @see getFromCache(), getHash()
         */
        public function getLockHash() {
                $lockHash = $this->createHashBase(TRUE);
                return md5($lockHash);
        }

        /**
         * Calculates the cache-hash (or the lock-hash)
         * This hash is unique to the template,
         * the variables ->id, ->type, ->gr_list (list of groups),
         * ->MP (Mount Points) and cHash array
         * Used to get and later store the cached data.
         *
         * @param bool $createLockHashBase Whether to create the lock hash, which doesn't contain the "this->all" (the template information)
         * @return string the serialized hash base
         */
        protected function createHashBase($createLockHashBase = FALSE) {
                $hashParameters = array(
                        'id' => (int)$this->id,
                        'type' => (int)$this->type,
                        'gr_list' => (string)$this->gr_list,
                        'MP' => (string)$this->MP,
                        'cHash' => $this->cHash_array,
                        'domainStartPage' => $this->domainStartPage
                );
                // Include the template information if we shouldn't create a lock hash
                if (!$createLockHashBase) {
                        $hashParameters['all'] = $this->all;
                }
                // Call hook to influence the hash calculation
                if (is_array($this->TYPO3_CONF_VARS['SC_OPTIONS']['tslib/class.tslib_fe.php']['createHashBase'])) {
                        $_params = array(
                                'hashParameters' => &$hashParameters,
                                'createLockHashBase' => $createLockHashBase
                        );
                        foreach ($this->TYPO3_CONF_VARS['SC_OPTIONS']['tslib/class.tslib_fe.php']['createHashBase'] as $_funcRef) {
                                GeneralUtility::callUserFunction($_funcRef, $_params, $this);
                        }
                }
                return serialize($hashParameters);
        }

        /**
         * Checks if config-array exists already but if not, gets it
         *
         * @throws ServiceUnavailableException
         * @return void
         */
        public function getConfigArray() {
                $setStatPageName = FALSE;
                // If config is not set by the cache (which would be a major mistake somewhere) OR if INTincScripts-include-scripts have been registered, then we must parse the template in order to get it
                if (!is_array($this->config) || is_array($this->config['INTincScript']) || $this->forceTemplateParsing) {
                        $GLOBALS['TT']->push('Parse template', '');
                        // Force parsing, if set?:
                        $this->tmpl->forceTemplateParsing = $this->forceTemplateParsing;
                        // Start parsing the TS template. Might return cached version.
                        $this->tmpl->start($this->rootLine);
                        $GLOBALS['TT']->pull();
                        if ($this->tmpl->loaded) {
                                $GLOBALS['TT']->push('Setting the config-array', '');
                                // toplevel - objArrayName
                                $this->sPre = $this->tmpl->setup['types.'][$this->type];
                                $this->pSetup = $this->tmpl->setup[$this->sPre . '.'];
                                if (!is_array($this->pSetup)) {
                                        $message = 'The page is not configured! [type=' . $this->type . '][' . $this->sPre . '].';
                                        if ($this->checkPageUnavailableHandler()) {
                                                $this->pageUnavailableAndExit($message);
                                        } else {
                                                $explanation = 'This means that there is no TypoScript object of type PAGE with typeNum=' . $this->type . ' configured.';
                                                GeneralUtility::sysLog($message, 'cms', GeneralUtility::SYSLOG_SEVERITY_ERROR);
                                                throw new ServiceUnavailableException($message . ' ' . $explanation, 1294587217);
                                        }
                                } else {
                                        if (!isset($this->config['config'])) {
                                                $this->config['config'] = array();
                                        }
                                        // Filling the config-array, first with the main "config." part
                                        if (is_array($this->tmpl->setup['config.'])) {
                                                ArrayUtility::mergeRecursiveWithOverrule($this->tmpl->setup['config.'], $this->config['config']);
                                                $this->config['config'] = $this->tmpl->setup['config.'];
                                        }
                                        // override it with the page/type-specific "config."
                                        if (is_array($this->pSetup['config.'])) {
                                                ArrayUtility::mergeRecursiveWithOverrule($this->config['config'], $this->pSetup['config.']);
                                        }
                                        if ($this->config['config']['typolinkEnableLinksAcrossDomains']) {
                                                $this->config['config']['typolinkCheckRootline'] = TRUE;
                                        }
                                        // Set default values for removeDefaultJS and inlineStyle2TempFile so CSS and JS are externalized if compatversion is higher than 4.0
                                        if (!isset($this->config['config']['removeDefaultJS'])) {
                                                $this->config['config']['removeDefaultJS'] = 'external';
                                        }
                                        if (!isset($this->config['config']['inlineStyle2TempFile'])) {
                                                $this->config['config']['inlineStyle2TempFile'] = 1;
                                        }

                                        if (!isset($this->config['config']['compressJs'])) {
                                                $this->config['config']['compressJs'] = 0;
                                        }
                                        // Processing for the config_array:
                                        $this->config['rootLine'] = $this->tmpl->rootLine;
                                        $this->config['mainScript'] = trim($this->config['config']['mainScript']) ?: 'index.php';
                                        // Class for render Header and Footer parts
                                        $template = '';
                                        if ($this->pSetup['pageHeaderFooterTemplateFile']) {
                                                $file = $this->tmpl->getFileName($this->pSetup['pageHeaderFooterTemplateFile']);
                                                if ($file) {
                                                        $this->pageRenderer->setTemplateFile($file);
                                                }
                                        }
                                }
                                $GLOBALS['TT']->pull();
                        } else {
                                if ($this->checkPageUnavailableHandler()) {
                                        $this->pageUnavailableAndExit('No TypoScript template found!');
                                } else {
                                        $message = 'No TypoScript template found!';
                                        GeneralUtility::sysLog($message, 'cms', GeneralUtility::SYSLOG_SEVERITY_ERROR);
                                        throw new ServiceUnavailableException($message, 1294587218);
                                }
                        }
                }

                // No cache
                // Set $this->no_cache TRUE if the config.no_cache value is set!
                if ($this->config['config']['no_cache']) {
                        $this->set_no_cache('config.no_cache is set');
                }
                // Merge GET with defaultGetVars
                if (!empty($this->config['config']['defaultGetVars.'])) {
                        $modifiedGetVars = GeneralUtility::removeDotsFromTS($this->config['config']['defaultGetVars.']);
                        ArrayUtility::mergeRecursiveWithOverrule($modifiedGetVars, GeneralUtility::_GET());
                        GeneralUtility::_GETset($modifiedGetVars);
                }
                // Hook for postProcessing the configuration array
                if (is_array($this->TYPO3_CONF_VARS['SC_OPTIONS']['tslib/class.tslib_fe.php']['configArrayPostProc'])) {
                        $params = array('config' => &$this->config['config']);
                        foreach ($this->TYPO3_CONF_VARS['SC_OPTIONS']['tslib/class.tslib_fe.php']['configArrayPostProc'] as $funcRef) {
                                GeneralUtility::callUserFunction($funcRef, $params, $this);
                        }
                }
        }

        /********************************************
         *
         * Further initialization and data processing
         * (jumpurl/submission of forms)
         *
         *******************************************/

        /**
         * Setting the language key that will be used by the current page.
         * In this function it should be checked, 1) that this language exists, 2) that a page_overlay_record exists, .. and if not the default language, 0 (zero), should be set.
         *
         * @return void
         * @access private
         */
        public function settingLanguage() {
                if (is_array($this->TYPO3_CONF_VARS['SC_OPTIONS']['tslib/class.tslib_fe.php']['settingLanguage_preProcess'])) {
                        $_params = array();
                        foreach ($this->TYPO3_CONF_VARS['SC_OPTIONS']['tslib/class.tslib_fe.php']['settingLanguage_preProcess'] as $_funcRef) {
                                GeneralUtility::callUserFunction($_funcRef, $_params, $this);
                        }
                }

                // Initialize charset settings etc.
                $this->initLLvars();

                // Get values from TypoScript:
                $this->sys_language_uid = ($this->sys_language_content = (int)$this->config['config']['sys_language_uid']);
                list($this->sys_language_mode, $sys_language_content) = GeneralUtility::trimExplode(';', $this->config['config']['sys_language_mode']);
                $this->sys_language_contentOL = $this->config['config']['sys_language_overlay'];
                // If sys_language_uid is set to another language than default:
                if ($this->sys_language_uid > 0) {
                        // check whether a shortcut is overwritten by a translated page
                        // we can only do this now, as this is the place where we get
                        // to know about translations
                        $this->checkTranslatedShortcut();
                        // Request the overlay record for the sys_language_uid:
                        $olRec = $this->sys_page->getPageOverlay($this->id, $this->sys_language_uid);
                        if (empty($olRec)) {
                                // If no OL record exists and a foreign language is asked for...
                                if ($this->sys_language_uid) {
                                        // If requested translation is not available:
                                        if (GeneralUtility::hideIfNotTranslated($this->page['l18n_cfg'])) {
                                                $this->pageNotFoundAndExit('Page is not available in the requested language.');
                                        } else {
                                                switch ((string)$this->sys_language_mode) {
                                                        case 'strict':
                                                                $this->pageNotFoundAndExit('Page is not available in the requested language (strict).');
                                                                break;
                                                        case 'content_fallback':
                                                                $fallBackOrder = GeneralUtility::intExplode(',', $sys_language_content);
                                                                foreach ($fallBackOrder as $orderValue) {
                                                                        if ((string)$orderValue === '0' || !empty($this->sys_page->getPageOverlay($this->id, $orderValue))) {
                                                                                $this->sys_language_content = $orderValue;
                                                                                // Setting content uid (but leaving the sys_language_uid)
                                                                                break;
                                                                        }
                                                                }
                                                                break;
                                                        case 'ignore':
                                                                $this->sys_language_content = $this->sys_language_uid;
                                                                break;
                                                        default:
                                                                // Default is that everything defaults to the default language...
                                                                $this->sys_language_uid = ($this->sys_language_content = 0);
                                                }
                                        }
                                }
                        } else {
                                // Setting sys_language if an overlay record was found (which it is only if a language is used)
                                $this->page = $this->sys_page->getPageOverlay($this->page, $this->sys_language_uid);
                        }
                }
                // Setting sys_language_uid inside sys-page:
                $this->sys_page->sys_language_uid = $this->sys_language_uid;
                // If default translation is not available:
                if ((!$this->sys_language_uid || !$this->sys_language_content) && $this->page['l18n_cfg'] & 1) {
                        $message = 'Page is not available in default language.';
                        GeneralUtility::sysLog($message, 'cms', GeneralUtility::SYSLOG_SEVERITY_ERROR);
                        $this->pageNotFoundAndExit($message);
                }
                $this->updateRootLinesWithTranslations();

                // Finding the ISO code for the currently selected language
                // fetched by the sys_language record when not fetching content from the default language
                if ($this->sys_language_content > 0) {
                        // using sys_language_content because the ISO code only (currently) affect content selection from FlexForms - which should follow "sys_language_content"
                        // Set the fourth parameter to TRUE in the next two getRawRecord() calls to
                        // avoid versioning overlay to be applied as it generates an SQL error
                        $sys_language_row = $this->sys_page->getRawRecord('sys_language', $this->sys_language_content, 'language_isocode,static_lang_isocode', TRUE);
                        if (is_array($sys_language_row)) {
                                if (!empty($sys_language_row['language_isocode'])) {
                                        $this->sys_language_isocode = $sys_language_row['language_isocode'];
                                } elseif ($sys_language_row['static_lang_isocode'] && ExtensionManagementUtility::isLoaded('static_info_tables')) {
                                        GeneralUtility::deprecationLog('Usage of the field "static_lang_isocode" is discouraged, and will stop working with CMS 8. Use the built-in language field "language_isocode" in your sys_language records.');
                                        $stLrow = $this->sys_page->getRawRecord('static_languages', $sys_language_row['static_lang_isocode'], 'lg_iso_2', TRUE);
                                        $this->sys_language_isocode = $stLrow['lg_iso_2'];
                                }
                        }
                        // the DB value is overriden by TypoScript
                        if (!empty($this->config['config']['sys_language_isocode'])) {
                                $this->sys_language_isocode = $this->config['config']['sys_language_isocode'];
                        }
                } else {
                        // fallback to the TypoScript option when rendering with sys_language_uid=0
                        // also: use "en" by default
                        if (!empty($this->config['config']['sys_language_isocode_default'])) {
                                $this->sys_language_isocode = $this->config['config']['sys_language_isocode_default'];
                        } else {
                                $this->sys_language_isocode = $this->lang != 'default' ? $this->lang : 'en';
                        }
                }


                // Setting softMergeIfNotBlank:
                $table_fields = GeneralUtility::trimExplode(',', $this->config['config']['sys_language_softMergeIfNotBlank'], TRUE);
                foreach ($table_fields as $TF) {
                        list($tN, $fN) = explode(':', $TF);
                        $GLOBALS['TCA'][$tN]['columns'][$fN]['l10n_mode'] = 'mergeIfNotBlank';
                }
                // Setting softExclude:
                $table_fields = GeneralUtility::trimExplode(',', $this->config['config']['sys_language_softExclude'], TRUE);
                foreach ($table_fields as $TF) {
                        list($tN, $fN) = explode(':', $TF);
                        $GLOBALS['TCA'][$tN]['columns'][$fN]['l10n_mode'] = 'exclude';
                }
                if (is_array($this->TYPO3_CONF_VARS['SC_OPTIONS']['tslib/class.tslib_fe.php']['settingLanguage_postProcess'])) {
                        $_params = array();
                        foreach ($this->TYPO3_CONF_VARS['SC_OPTIONS']['tslib/class.tslib_fe.php']['settingLanguage_postProcess'] as $_funcRef) {
                                GeneralUtility::callUserFunction($_funcRef, $_params, $this);
                        }
                }
        }

        /**
         * Updating content of the two rootLines IF the language key is set!
         */
        protected function updateRootLinesWithTranslations() {
                if ($this->sys_language_uid) {
                        $this->rootLine = $this->sys_page->getRootLine($this->id, $this->MP);
                        $this->tmpl->updateRootlineData($this->rootLine);
                }
        }

        /**
         * Setting locale for frontend rendering
         *
         * @return void
         */
        public function settingLocale() {
                // Setting locale
                if ($this->config['config']['locale_all']) {
                        // There's a problem that PHP parses float values in scripts wrong if the
                        // locale LC_NUMERIC is set to something with a comma as decimal point
                        // Do we set all except LC_NUMERIC
                        $locale = setlocale(LC_COLLATE, $this->config['config']['locale_all']);
                        if ($locale) {
                                setlocale(LC_CTYPE, $this->config['config']['locale_all']);
                                setlocale(LC_MONETARY, $this->config['config']['locale_all']);
                                setlocale(LC_TIME, $this->config['config']['locale_all']);
                                $this->localeCharset = $this->csConvObj->get_locale_charset($this->config['config']['locale_all']);
                        } else {
                                $GLOBALS['TT']->setTSlogMessage('Locale "' . htmlspecialchars($this->config['config']['locale_all']) . '" not found.', 3);
                        }
                }
        }

        /**
         * Checks whether a translated shortcut page has a different shortcut
         * target than the original language page.
         * If that is the case, things get corrected to follow that alternative
         * shortcut
         *
         * @return void
         */
        protected function checkTranslatedShortcut() {
                if (!is_null($this->originalShortcutPage)) {
                        $originalShortcutPageOverlay = $this->sys_page->getPageOverlay($this->originalShortcutPage['uid'], $this->sys_language_uid);
                        if (!empty($originalShortcutPageOverlay['shortcut']) && $originalShortcutPageOverlay['shortcut'] != $this->id) {
                                // the translation of the original shortcut page has a different shortcut target!
                                // set the correct page and id
                                $shortcut = $this->getPageShortcut($originalShortcutPageOverlay['shortcut'], $originalShortcutPageOverlay['shortcut_mode'], $originalShortcutPageOverlay['uid']);
                                $this->id = ($this->contentPid = $shortcut['uid']);
                                $this->page = $this->sys_page->getPage($this->id);
                                // Fix various effects on things like menus f.e.
                                $this->fetch_the_id();
                                $this->tmpl->rootLine = array_reverse($this->rootLine);
                        }
                }
        }

        /**
         * Handle data submission
         * This is done at this point, because we need the config values
         *
         * @return void
         */
        public function handleDataSubmission() {
                // Hook for processing data submission to extensions
                if (is_array($this->TYPO3_CONF_VARS['SC_OPTIONS']['tslib/class.tslib_fe.php']['checkDataSubmission'])) {
                        foreach ($this->TYPO3_CONF_VARS['SC_OPTIONS']['tslib/class.tslib_fe.php']['checkDataSubmission'] as $_classRef) {
                                $_procObj = GeneralUtility::getUserObj($_classRef);
                                $_procObj->checkDataSubmission($this);
                        }
                }
        }

        /**
         * Checks if a formmail submission can be sent as email, also used for JumpURLs
         * should be removed once JumpURL is handled outside TypoScriptFrontendController
         *
         * @param string $locationData The input from $_POST['locationData']
         * @return void|int
         */
        protected function locDataCheck($locationData) {
                $locData = explode(':', $locationData);
                if (!$locData[1] || $this->sys_page->checkRecord($locData[1], $locData[2], 1)) {
                        // $locData[1] -check means that a record is checked only if the locationData has a value for a record else than the page.
                        if (!empty($this->sys_page->getPage($locData[0]))) {
                                return 1;
                        } else {
                                $GLOBALS['TT']->setTSlogMessage('LocationData Error: The page pointed to by location data (' . $locationData . ') was not accessible.', 2);
                        }
                } else {
                        $GLOBALS['TT']->setTSlogMessage('LocationData Error: Location data (' . $locationData . ') record pointed to was not accessible.', 2);
                }
        }

        /**
         * Sets the jumpurl for page type "External URL"
         *
         * @return void
         */
        public function setExternalJumpUrl() {
                if ((bool)$this->config['config']['disablePageExternalUrl'] === FALSE && $extUrl = $this->sys_page->getExtURL($this->page)) {
                        $this->jumpurl = $extUrl;
                        GeneralUtility::_GETset(GeneralUtility::hmac($this->jumpurl, 'jumpurl'), 'juHash');
                }