src/App.php

   1 <?php
   2 /**
   3  * @copyright Copyright (C) 2010-2022, the Friendica project
   4  *
   5  * @license GNU AGPL version 3 or any later version
   6  *
   7  * This program is free software: you can redistribute it and/or modify
   8  * it under the terms of the GNU Affero General Public License as
   9  * published by the Free Software Foundation, either version 3 of the
  10  * License, or (at your option) any later version.
  11  *
  12  * This program is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  * GNU Affero General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU Affero General Public License
  18  * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  19  *
  20  */
  21
  22 namespace Friendica;
  23
  24 use Exception;
  25 use Friendica\App\Arguments;
  26 use Friendica\App\BaseURL;
  27 use Friendica\Capabilities\ICanCreateResponses;
  28 use Friendica\Core\Config\Factory\Config;
  29 use Friendica\Core\Session\Capability\IHandleUserSessions;
  30 use Friendica\Module\Maintenance;
  31 use Friendica\Security\Authentication;
  32 use Friendica\Core\Config\ValueObject\Cache;
  33 use Friendica\Core\Config\Capability\IManageConfigValues;
  34 use Friendica\Core\PConfig\Capability\IManagePersonalConfigValues;
  35 use Friendica\Core\L10n;
  36 use Friendica\Core\System;
  37 use Friendica\Core\Theme;
  38 use Friendica\Database\Database;
  39 use Friendica\Model\Contact;
  40 use Friendica\Model\Profile;
  41 use Friendica\Module\Special\HTTPException as ModuleHTTPException;
  42 use Friendica\Network\HTTPException;
  43 use Friendica\Util\DateTimeFormat;
  44 use Friendica\Util\HTTPInputData;
  45 use Friendica\Util\HTTPSignature;
  46 use Friendica\Util\Profiler;
  47 use Friendica\Util\Strings;
  48 use Psr\Log\LoggerInterface;
  49
  50 /**
  51  * Our main application structure for the life of this page.
  52  *
  53  * Primarily deals with the URL that got us here
  54  * and tries to make some sense of it, and
  55  * stores our page contents and config storage
  56  * and anything else that might need to be passed around
  57  * before we spit the page out.
  58  *
  59  */
  60 class App
  61 {
  62         const PLATFORM = 'Friendica';
  63         const CODENAME = 'Giant Rhubarb';
  64         const VERSION  = '2022.12-dev';
  65
  66         // Allow themes to control internal parameters
  67         // by changing App values in theme.php
  68         private $theme_info = [
  69                 'videowidth'        => 425,
  70                 'videoheight'       => 350,
  71                 'events_in_profile' => true
  72         ];
  73
  74         private $user_id       = 0;
  75         private $nickname      = '';
  76         private $timezone      = '';
  77         private $profile_owner = 0;
  78         private $contact_id    = 0;
  79         private $queue         = [];
  80
  81         /**
  82          * @var App\Mode The Mode of the Application
  83          */
  84         private $mode;
  85
  86         /**
  87          * @var BaseURL
  88          */
  89         private $baseURL;
  90
  91         /** @var string The name of the current theme */
  92         private $currentTheme;
  93         /** @var string The name of the current mobile theme */
  94         private $currentMobileTheme;
  95
  96         /**
  97          * @var IManageConfigValues The config
  98          */
  99         private $config;
 100
 101         /**
 102          * @var LoggerInterface The logger
 103          */
 104         private $logger;
 105
 106         /**
 107          * @var Profiler The profiler of this app
 108          */
 109         private $profiler;
 110
 111         /**
 112          * @var Database The Friendica database connection
 113          */
 114         private $database;
 115
 116         /**
 117          * @var L10n The translator
 118          */
 119         private $l10n;
 120
 121         /**
 122          * @var App\Arguments
 123          */
 124         private $args;
 125
 126         /**
 127          * @var IManagePersonalConfigValues
 128          */
 129         private $pConfig;
 130
 131         /**
 132          * @var IHandleUserSessions
 133          */
 134         private $session;
 135
 136         /**
 137          * Set the user ID
 138          *
 139          * @param int $user_id
 140          * @return void
 141          */
 142         public function setLoggedInUserId(int $user_id)
 143         {
 144                 $this->user_id = $user_id;
 145         }
 146
 147         /**
 148          * Set the nickname
 149          *
 150          * @param int $user_id
 151          * @return void
 152          */
 153         public function setLoggedInUserNickname(string $nickname)
 154         {
 155                 $this->nickname = $nickname;
 156         }
 157
 158         public function isLoggedIn(): bool
 159         {
 160                 return $this->session->getLocalUserId() && $this->user_id && ($this->user_id == $this->session->getLocalUserId());
 161         }
 162
 163         /**
 164          * Check if current user has admin role.
 165          *
 166          * @return bool true if user is an admin
 167          */
 168         public function isSiteAdmin(): bool
 169         {
 170                 $admin_email = $this->config->get('config', 'admin_email');
 171
 172                 $adminlist = explode(',', str_replace(' ', '', $admin_email));
 173
 174                 return $this->session->getLocalUserId() && $admin_email && $this->database->exists('user', ['uid' => $this->getLoggedInUserId(), 'email' => $adminlist]);
 175         }
 176
 177         /**
 178          * Fetch the user id
 179          * @return int User id
 180          */
 181         public function getLoggedInUserId(): int
 182         {
 183                 return $this->user_id;
 184         }
 185
 186         /**
 187          * Fetch the user nick name
 188          * @return string User's nickname
 189          */
 190         public function getLoggedInUserNickname(): string
 191         {
 192                 return $this->nickname;
 193         }
 194
 195         /**
 196          * Set the profile owner ID
 197          *
 198          * @param int $owner_id
 199          * @return void
 200          */
 201         public function setProfileOwner(int $owner_id)
 202         {
 203                 $this->profile_owner = $owner_id;
 204         }
 205
 206         /**
 207          * Get the profile owner ID
 208          *
 209          * @return int
 210          */
 211         public function getProfileOwner(): int
 212         {
 213                 return $this->profile_owner;
 214         }
 215
 216         /**
 217          * Set the contact ID
 218          *
 219          * @param int $contact_id
 220          * @return void
 221          */
 222         public function setContactId(int $contact_id)
 223         {
 224                 $this->contact_id = $contact_id;
 225         }
 226
 227         /**
 228          * Get the contact ID
 229          *
 230          * @return int
 231          */
 232         public function getContactId(): int
 233         {
 234                 return $this->contact_id;
 235         }
 236
 237         /**
 238          * Set the timezone
 239          *
 240          * @param string $timezone A valid time zone identifier, see https://www.php.net/manual/en/timezones.php
 241          * @return void
 242          */
 243         public function setTimeZone(string $timezone)
 244         {
 245                 $this->timezone = (new \DateTimeZone($timezone))->getName();
 246                 DateTimeFormat::setLocalTimeZone($this->timezone);
 247         }
 248
 249         /**
 250          * Get the timezone
 251          *
 252          * @return int
 253          */
 254         public function getTimeZone(): string
 255         {
 256                 return $this->timezone;
 257         }
 258
 259         /**
 260          * Set workerqueue information
 261          *
 262          * @param array $queue
 263          * @return void
 264          */
 265         public function setQueue(array $queue)
 266         {
 267                 $this->queue = $queue;
 268         }
 269
 270         /**
 271          * Fetch workerqueue information
 272          *
 273          * @return array Worker queue
 274          */
 275         public function getQueue(): array
 276         {
 277                 return $this->queue ?? [];
 278         }
 279
 280         /**
 281          * Fetch a specific workerqueue field
 282          *
 283          * @param string $index Work queue record to fetch
 284          * @return mixed Work queue item or NULL if not found
 285          */
 286         public function getQueueValue(string $index)
 287         {
 288                 return $this->queue[$index] ?? null;
 289         }
 290
 291         public function setThemeInfoValue(string $index, $value)
 292         {
 293                 $this->theme_info[$index] = $value;
 294         }
 295
 296         public function getThemeInfo()
 297         {
 298                 return $this->theme_info;
 299         }
 300
 301         public function getThemeInfoValue(string $index, $default = null)
 302         {
 303                 return $this->theme_info[$index] ?? $default;
 304         }
 305
 306         /**
 307          * Returns the current config cache of this node
 308          *
 309          * @return Cache
 310          */
 311         public function getConfigCache()
 312         {
 313                 return $this->config->getCache();
 314         }
 315
 316         /**
 317          * The basepath of this app
 318          *
 319          * @return string Base path from configuration
 320          */
 321         public function getBasePath(): string
 322         {
 323                 // Don't use the basepath of the config table for basepath (it should always be the config-file one)
 324                 return $this->config->getCache()->get('system', 'basepath');
 325         }
 326
 327         /**
 328          * @param Database                    $database The Friendica Database
 329          * @param IManageConfigValues         $config   The Configuration
 330          * @param App\Mode                    $mode     The mode of this Friendica app
 331          * @param BaseURL                     $baseURL  The full base URL of this Friendica app
 332          * @param LoggerInterface             $logger   The current app logger
 333          * @param Profiler                    $profiler The profiler of this application
 334          * @param L10n                        $l10n     The translator instance
 335          * @param App\Arguments               $args     The Friendica Arguments of the call
 336          * @param IManagePersonalConfigValues $pConfig  Personal configuration
 337          * @param IHandleUserSessions         $session  The (User)Session handler
 338          */
 339         public function __construct(Database $database, IManageConfigValues $config, App\Mode $mode, BaseURL $baseURL, LoggerInterface $logger, Profiler $profiler, L10n $l10n, Arguments $args, IManagePersonalConfigValues $pConfig, IHandleUserSessions $session)
 340         {
 341                 $this->database = $database;
 342                 $this->config   = $config;
 343                 $this->mode     = $mode;
 344                 $this->baseURL  = $baseURL;
 345                 $this->profiler = $profiler;
 346                 $this->logger   = $logger;
 347                 $this->l10n     = $l10n;
 348                 $this->args     = $args;
 349                 $this->pConfig  = $pConfig;
 350                 $this->session  = $session;
 351
 352                 $this->load();
 353         }
 354
 355         /**
 356          * Load the whole app instance
 357          */
 358         public function load()
 359         {
 360                 set_time_limit(0);
 361
 362                 // Normally this constant is defined - but not if "pcntl" isn't installed
 363                 if (!defined('SIGTERM')) {
 364                         define('SIGTERM', 15);
 365                 }
 366
 367                 // Ensure that all "strtotime" operations do run timezone independent
 368                 date_default_timezone_set('UTC');
 369
 370                 // This has to be quite large to deal with embedded private photos
 371                 ini_set('pcre.backtrack_limit', 500000);
 372
 373                 set_include_path(
 374                         get_include_path() . PATH_SEPARATOR
 375                         . $this->getBasePath() . DIRECTORY_SEPARATOR . 'include' . PATH_SEPARATOR
 376                         . $this->getBasePath() . DIRECTORY_SEPARATOR . 'library' . PATH_SEPARATOR
 377                         . $this->getBasePath());
 378
 379                 $this->profiler->reset();
 380
 381                 if ($this->mode->has(App\Mode::DBAVAILABLE)) {
 382                         $this->profiler->update($this->config);
 383
 384                         Core\Hook::loadHooks();
 385                         $loader = (new Config())->createConfigFileLoader($this->getBasePath(), $_SERVER);
 386                         Core\Hook::callAll('load_config', $loader);
 387                 }
 388
 389                 $this->loadDefaultTimezone();
 390                 // Register template engines
 391                 Core\Renderer::registerTemplateEngine('Friendica\Render\FriendicaSmartyEngine');
 392         }
 393
 394         /**
 395          * Loads the default timezone
 396          *
 397          * Include support for legacy $default_timezone
 398          *
 399          * @global string $default_timezone
 400          */
 401         private function loadDefaultTimezone()
 402         {
 403                 if ($this->config->get('system', 'default_timezone')) {
 404                         $timezone = $this->config->get('system', 'default_timezone', 'UTC');
 405                 } else {
 406                         global $default_timezone;
 407                         $timezone = $default_timezone ?? '' ?: 'UTC';
 408                 }
 409
 410                 $this->setTimeZone($timezone);
 411         }
 412
 413         /**
 414          * Returns the current theme name. May be overriden by the mobile theme name.
 415          *
 416          * @return string Current theme name or empty string in installation phase
 417          * @throws Exception
 418          */
 419         public function getCurrentTheme(): string
 420         {
 421                 if ($this->mode->isInstall()) {
 422                         return '';
 423                 }
 424
 425                 // Specific mobile theme override
 426                 if (($this->mode->isMobile() || $this->mode->isTablet()) && $this->session->get('show-mobile', true)) {
 427                         $user_mobile_theme = $this->getCurrentMobileTheme();
 428
 429                         // --- means same mobile theme as desktop
 430                         if (!empty($user_mobile_theme) && $user_mobile_theme !== '---') {
 431                                 return $user_mobile_theme;
 432                         }
 433                 }
 434
 435                 if (!$this->currentTheme) {
 436                         $this->computeCurrentTheme();
 437                 }
 438
 439                 return $this->currentTheme;
 440         }
 441
 442         /**
 443          * Returns the current mobile theme name.
 444          *
 445          * @return string Mobile theme name or empty string if installer
 446          * @throws Exception
 447          */
 448         public function getCurrentMobileTheme(): string
 449         {
 450                 if ($this->mode->isInstall()) {
 451                         return '';
 452                 }
 453
 454                 if (is_null($this->currentMobileTheme)) {
 455                         $this->computeCurrentMobileTheme();
 456                 }
 457
 458                 return $this->currentMobileTheme;
 459         }
 460
 461         /**
 462          * Setter for current theme name
 463          *
 464          * @param string $theme Name of current theme
 465          */
 466         public function setCurrentTheme(string $theme)
 467         {
 468                 $this->currentTheme = $theme;
 469         }
 470
 471         /**
 472          * Setter for current mobile theme name
 473          *
 474          * @param string $theme Name of current mobile theme
 475          */
 476         public function setCurrentMobileTheme(string $theme)
 477         {
 478                 $this->currentMobileTheme = $theme;
 479         }
 480
 481         /**
 482          * Computes the current theme name based on the node settings, the page owner settings and the user settings
 483          *
 484          * @throws Exception
 485          */
 486         private function computeCurrentTheme()
 487         {
 488                 $system_theme = $this->config->get('system', 'theme');
 489                 if (!$system_theme) {
 490                         throw new Exception($this->l10n->t('No system theme config value set.'));
 491                 }
 492
 493                 // Sane default
 494                 $this->setCurrentTheme($system_theme);
 495
 496                 $page_theme = null;
 497                 // Find the theme that belongs to the user whose stuff we are looking at
 498                 if (!empty($this->profile_owner) && ($this->profile_owner != $this->session->getLocalUserId())) {
 499                         // Allow folks to override user themes and always use their own on their own site.
 500                         // This works only if the user is on the same server
 501                         $user = $this->database->selectFirst('user', ['theme'], ['uid' => $this->profile_owner]);
 502                         if ($this->database->isResult($user) && !$this->session->getLocalUserId()) {
 503                                 $page_theme = $user['theme'];
 504                         }
 505                 }
 506
 507                 $theme_name = $page_theme ?: $this->session->get('theme', $system_theme);
 508
 509                 $theme_name = Strings::sanitizeFilePathItem($theme_name);
 510                 if ($theme_name
 511                     && in_array($theme_name, Theme::getAllowedList())
 512                     && (file_exists('view/theme/' . $theme_name . '/style.css')
 513                         || file_exists('view/theme/' . $theme_name . '/style.php'))
 514                 ) {
 515                         $this->setCurrentTheme($theme_name);
 516                 }
 517         }
 518
 519         /**
 520          * Computes the current mobile theme name based on the node settings, the page owner settings and the user settings
 521          */
 522         private function computeCurrentMobileTheme()
 523         {
 524                 $system_mobile_theme = $this->config->get('system', 'mobile-theme', '');
 525
 526                 // Sane default
 527                 $this->setCurrentMobileTheme($system_mobile_theme);
 528
 529                 $page_mobile_theme = null;
 530                 // Find the theme that belongs to the user whose stuff we are looking at
 531                 if (!empty($this->profile_owner) && ($this->profile_owner != $this->session->getLocalUserId())) {
 532                         // Allow folks to override user themes and always use their own on their own site.
 533                         // This works only if the user is on the same server
 534                         if (!$this->session->getLocalUserId()) {
 535                                 $page_mobile_theme = $this->pConfig->get($this->profile_owner, 'system', 'mobile-theme');
 536                         }
 537                 }
 538
 539                 $mobile_theme_name = $page_mobile_theme ?: $this->session->get('mobile-theme', $system_mobile_theme);
 540
 541                 $mobile_theme_name = Strings::sanitizeFilePathItem($mobile_theme_name);
 542                 if ($mobile_theme_name == '---'
 543                         ||
 544                         in_array($mobile_theme_name, Theme::getAllowedList())
 545                         && (file_exists('view/theme/' . $mobile_theme_name . '/style.css')
 546                                 || file_exists('view/theme/' . $mobile_theme_name . '/style.php'))
 547                 ) {
 548                         $this->setCurrentMobileTheme($mobile_theme_name);
 549                 }
 550         }
 551
 552         /**
 553          * Provide a sane default if nothing is chosen or the specified theme does not exist.
 554          *
 555          * @return string Current theme's stylsheet path
 556          * @throws Exception
 557          */
 558         public function getCurrentThemeStylesheetPath(): string
 559         {
 560                 return Core\Theme::getStylesheetPath($this->getCurrentTheme());
 561         }
 562
 563         /**
 564          * Sets the base url for use in cmdline programs which don't have
 565          * $_SERVER variables
 566          */
 567         public function checkURL()
 568         {
 569                 $url = $this->config->get('system', 'url');
 570
 571                 // if the url isn't set or the stored url is radically different
 572                 // than the currently visited url, store the current value accordingly.
 573                 // "Radically different" ignores common variations such as http vs https
 574                 // and www.example.com vs example.com.
 575                 // We will only change the url to an ip address if there is no existing setting
 576
 577                 if (empty($url) || (!Util\Strings::compareLink($url, $this->baseURL->get())) && (!preg_match("/^(\d{1,3})\.(\d{1,3})\.(\d{1,3})\.(\d{1,3})$/", $this->baseURL->getHostname()))) {
 578                         $this->config->set('system', 'url', $this->baseURL->get());
 579                 }
 580         }
 581
 582         /**
 583          * Frontend App script
 584          *
 585          * The App object behaves like a container and a dispatcher at the same time, including a representation of the
 586          * request and a representation of the response.
 587          *
 588          * This probably should change to limit the size of this monster method.
 589          *
 590          * @param App\Router                  $router
 591          * @param IManagePersonalConfigValues $pconfig
 592          * @param Authentication              $auth       The Authentication backend of the node
 593          * @param App\Page                    $page       The Friendica page printing container
 594          * @param HTTPInputData               $httpInput  A library for processing PHP input streams
 595          * @param float                       $start_time The start time of the overall script execution
 596          *
 597          * @throws HTTPException\InternalServerErrorException
 598          * @throws \ImagickException
 599          */
 600         public function runFrontend(App\Router $router, IManagePersonalConfigValues $pconfig, Authentication $auth, App\Page $page, HTTPInputData $httpInput, float $start_time)
 601         {
 602                 $this->profiler->set($start_time, 'start');
 603                 $this->profiler->set(microtime(true), 'classinit');
 604
 605                 $moduleName = $this->args->getModuleName();
 606                 $page->setLogging($this->args->getMethod(), $this->args->getModuleName(), $this->args->getCommand());
 607
 608                 try {
 609                         // Missing DB connection: ERROR
 610                         if ($this->mode->has(App\Mode::LOCALCONFIGPRESENT) && !$this->mode->has(App\Mode::DBAVAILABLE)) {
 611                                 throw new HTTPException\InternalServerErrorException($this->l10n->t('Apologies but the website is unavailable at the moment.'));
 612                         }
 613
 614                         if (!$this->mode->isInstall()) {
 615                                 // Force SSL redirection
 616                                 if ($this->baseURL->checkRedirectHttps()) {
 617                                         System::externalRedirect($this->baseURL->get() . '/' . $this->args->getQueryString());
 618                                 }
 619
 620                                 Core\Hook::callAll('init_1');
 621                         }
 622
 623                         if ($this->mode->isNormal() && !$this->mode->isBackend()) {
 624                                 $requester = HTTPSignature::getSigner('', $_SERVER);
 625                                 if (!empty($requester)) {
 626                                         Profile::addVisitorCookieForHandle($requester);
 627                                 }
 628                         }
 629
 630                         // ZRL
 631                         if (!empty($_GET['zrl']) && $this->mode->isNormal() && !$this->mode->isBackend() && !$this->session->getLocalUserId()) {
 632                                 // Only continue when the given profile link seems valid
 633                                 // Valid profile links contain a path with "/profile/" and no query parameters
 634                                 if ((parse_url($_GET['zrl'], PHP_URL_QUERY) == '') &&
 635                                         strstr(parse_url($_GET['zrl'], PHP_URL_PATH), '/profile/')) {
 636                                         if ($this->session->get('visitor_home') != $_GET['zrl']) {
 637                                                 $this->session->set('my_url', $_GET['zrl']);
 638                                                 $this->session->set('authenticated', 0);
 639
 640                                                 $remote_contact = Contact::getByURL($_GET['zrl'], false, ['subscribe']);
 641                                                 if (!empty($remote_contact['subscribe'])) {
 642                                                         $_SESSION['remote_comment'] = $remote_contact['subscribe'];
 643                                                 }
 644                                         }
 645
 646                                         Model\Profile::zrlInit($this);
 647                                 } else {
 648                                         // Someone came with an invalid parameter, maybe as a DDoS attempt
 649                                         // We simply stop processing here
 650                                         $this->logger->debug('Invalid ZRL parameter.', ['zrl' => $_GET['zrl']]);
 651                                         throw new HTTPException\ForbiddenException();
 652                                 }
 653                         }
 654
 655                         if (!empty($_GET['owt']) && $this->mode->isNormal()) {
 656                                 $token = $_GET['owt'];
 657                                 Model\Profile::openWebAuthInit($token);
 658                         }
 659
 660                         if (!$this->mode->isBackend()) {
 661                                 $auth->withSession($this);
 662                         }
 663
 664                         if (empty($_SESSION['authenticated'])) {
 665                                 header('X-Account-Management-Status: none');
 666                         }
 667
 668                         /*
 669                          * check_config() is responsible for running update scripts. These automatically
 670                          * update the DB schema whenever we push a new one out. It also checks to see if
 671                          * any addons have been added or removed and reacts accordingly.
 672                          */
 673
 674                         // in install mode, any url loads install module
 675                         // but we need "view" module for stylesheet
 676                         if ($this->mode->isInstall() && $moduleName !== 'install') {
 677                                 $this->baseURL->redirect('install');
 678                         } else {
 679                                 $this->checkURL();
 680                                 Core\Update::check($this->getBasePath(), false, $this->mode);
 681                                 Core\Addon::loadAddons();
 682                                 Core\Hook::loadHooks();
 683                         }
 684
 685                         // Compatibility with the Android Diaspora client
 686                         if ($moduleName == 'stream') {
 687                                 $this->baseURL->redirect('network?order=post');
 688                         }
 689
 690                         if ($moduleName == 'conversations') {
 691                                 $this->baseURL->redirect('message');
 692                         }
 693
 694                         if ($moduleName == 'commented') {
 695                                 $this->baseURL->redirect('network?order=comment');
 696                         }
 697
 698                         if ($moduleName == 'liked') {
 699                                 $this->baseURL->redirect('network?order=comment');
 700                         }
 701
 702                         if ($moduleName == 'activity') {
 703                                 $this->baseURL->redirect('network?conv=1');
 704                         }
 705
 706                         if (($moduleName == 'status_messages') && ($this->args->getCommand() == 'status_messages/new')) {
 707                                 $this->baseURL->redirect('bookmarklet');
 708                         }
 709
 710                         if (($moduleName == 'user') && ($this->args->getCommand() == 'user/edit')) {
 711                                 $this->baseURL->redirect('settings');
 712                         }
 713
 714                         if (($moduleName == 'tag_followings') && ($this->args->getCommand() == 'tag_followings/manage')) {
 715                                 $this->baseURL->redirect('search');
 716                         }
 717
 718                         // Initialize module that can set the current theme in the init() method, either directly or via App->setProfileOwner
 719                         $page['page_title'] = $moduleName;
 720
 721                         // The "view" module is required to show the theme CSS
 722                         if (!$this->mode->isInstall() && !$this->mode->has(App\Mode::MAINTENANCEDISABLED) && $moduleName !== 'view') {
 723                                 $module = $router->getModule(Maintenance::class);
 724                         } else {
 725                                 // determine the module class and save it to the module instance
 726                                 // @todo there's an implicit dependency due SESSION::start(), so it has to be called here (yet)
 727                                 $module = $router->getModule();
 728                         }
 729
 730                         // Processes data from GET requests
 731                         $httpinput = $httpInput->process();
 732                         $input     = array_merge($httpinput['variables'], $httpinput['files'], $request ?? $_REQUEST);
 733
 734                         // Let the module run it's internal process (init, get, post, ...)
 735                         $timestamp = microtime(true);
 736                         $response = $module->run($input);
 737                         $this->profiler->set(microtime(true) - $timestamp, 'content');
 738                         if ($response->getHeaderLine(ICanCreateResponses::X_HEADER) === ICanCreateResponses::TYPE_HTML) {
 739                                 $page->run($this, $this->baseURL, $this->args, $this->mode, $response, $this->l10n, $this->profiler, $this->config, $pconfig, $this->session->getLocalUserId());
 740                         } else {
 741                                 $page->exit($response);
 742                         }
 743                 } catch (HTTPException $e) {
 744                         (new ModuleHTTPException())->rawContent($e);
 745                 }
 746                 $page->logRuntime($this->config, 'runFrontend');
 747         }
 748
 749         /**
 750          * Automatically redirects to relative or absolute URL
 751          * Should only be used if it isn't clear if the URL is either internal or external
 752          *
 753          * @param string $toUrl The target URL
 754          *
 755          * @throws HTTPException\InternalServerErrorException
 756          */
 757         public function redirect(string $toUrl)
 758         {
 759                 if (!empty(parse_url($toUrl, PHP_URL_SCHEME))) {
 760                         Core\System::externalRedirect($toUrl);
 761                 } else {
 762                         $this->baseURL->redirect($toUrl);
 763                 }
 764         }
 765 }