src/App.php

   1 <?php
   2 /**
   3  * @copyright Copyright (C) 2010-2023, 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\Database\Definition\DbaDefinition;
  31 use Friendica\Database\Definition\ViewDefinition;
  32 use Friendica\Module\Maintenance;
  33 use Friendica\Security\Authentication;
  34 use Friendica\Core\Config\ValueObject\Cache;
  35 use Friendica\Core\Config\Capability\IManageConfigValues;
  36 use Friendica\Core\PConfig\Capability\IManagePersonalConfigValues;
  37 use Friendica\Core\L10n;
  38 use Friendica\Core\System;
  39 use Friendica\Core\Theme;
  40 use Friendica\Database\Database;
  41 use Friendica\Model\Contact;
  42 use Friendica\Model\Profile;
  43 use Friendica\Module\Special\HTTPException as ModuleHTTPException;
  44 use Friendica\Network\HTTPException;
  45 use Friendica\Util\DateTimeFormat;
  46 use Friendica\Util\HTTPInputData;
  47 use Friendica\Util\HTTPSignature;
  48 use Friendica\Util\Profiler;
  49 use Friendica\Util\Strings;
  50 use Psr\Log\LoggerInterface;
  51
  52 /**
  53  * Our main application structure for the life of this page.
  54  *
  55  * Primarily deals with the URL that got us here
  56  * and tries to make some sense of it, and
  57  * stores our page contents and config storage
  58  * and anything else that might need to be passed around
  59  * before we spit the page out.
  60  *
  61  */
  62 class App
  63 {
  64         const PLATFORM = 'Friendica';
  65         const CODENAME = 'Giant Rhubarb';
  66         const VERSION  = '2023.03-dev';
  67
  68         // Allow themes to control internal parameters
  69         // by changing App values in theme.php
  70         private $theme_info = [
  71                 'videowidth'        => 425,
  72                 'videoheight'       => 350,
  73         ];
  74
  75         private $timezone      = '';
  76         private $profile_owner = 0;
  77         private $contact_id    = 0;
  78         private $queue         = [];
  79
  80         /**
  81          * @var App\Mode The Mode of the Application
  82          */
  83         private $mode;
  84
  85         /**
  86          * @var BaseURL
  87          */
  88         private $baseURL;
  89
  90         /** @var string The name of the current theme */
  91         private $currentTheme;
  92         /** @var string The name of the current mobile theme */
  93         private $currentMobileTheme;
  94
  95         /**
  96          * @var IManageConfigValues The config
  97          */
  98         private $config;
  99
 100         /**
 101          * @var LoggerInterface The logger
 102          */
 103         private $logger;
 104
 105         /**
 106          * @var Profiler The profiler of this app
 107          */
 108         private $profiler;
 109
 110         /**
 111          * @var Database The Friendica database connection
 112          */
 113         private $database;
 114
 115         /**
 116          * @var L10n The translator
 117          */
 118         private $l10n;
 119
 120         /**
 121          * @var App\Arguments
 122          */
 123         private $args;
 124
 125         /**
 126          * @var IManagePersonalConfigValues
 127          */
 128         private $pConfig;
 129
 130         /**
 131          * @var IHandleUserSessions
 132          */
 133         private $session;
 134
 135         /**
 136          * @deprecated 2022.03
 137          * @see IHandleUserSessions::isAuthenticated()
 138          */
 139         public function isLoggedIn(): bool
 140         {
 141                 return $this->session->isAuthenticated();
 142         }
 143
 144         /**
 145          * @deprecated 2022.03
 146          * @see IHandleUserSessions::isSiteAdmin()
 147          */
 148         public function isSiteAdmin(): bool
 149         {
 150                 return $this->session->isSiteAdmin();
 151         }
 152
 153         /**
 154          * @deprecated 2022.03
 155          * @see IHandleUserSessions::getLocalUserId()
 156          */
 157         public function getLoggedInUserId(): int
 158         {
 159                 return $this->session->getLocalUserId();
 160         }
 161
 162         /**
 163          * @deprecated 2022.03
 164          * @see IHandleUserSessions::getLocalUserNickname()
 165          */
 166         public function getLoggedInUserNickname(): string
 167         {
 168                 return $this->session->getLocalUserNickname();
 169         }
 170
 171         /**
 172          * Set the profile owner ID
 173          *
 174          * @param int $owner_id
 175          * @return void
 176          */
 177         public function setProfileOwner(int $owner_id)
 178         {
 179                 $this->profile_owner = $owner_id;
 180         }
 181
 182         /**
 183          * Get the profile owner ID
 184          *
 185          * @return int
 186          */
 187         public function getProfileOwner(): int
 188         {
 189                 return $this->profile_owner;
 190         }
 191
 192         /**
 193          * Set the contact ID
 194          *
 195          * @param int $contact_id
 196          * @return void
 197          */
 198         public function setContactId(int $contact_id)
 199         {
 200                 $this->contact_id = $contact_id;
 201         }
 202
 203         /**
 204          * Get the contact ID
 205          *
 206          * @return int
 207          */
 208         public function getContactId(): int
 209         {
 210                 return $this->contact_id;
 211         }
 212
 213         /**
 214          * Set the timezone
 215          *
 216          * @param string $timezone A valid time zone identifier, see https://www.php.net/manual/en/timezones.php
 217          * @return void
 218          */
 219         public function setTimeZone(string $timezone)
 220         {
 221                 $this->timezone = (new \DateTimeZone($timezone))->getName();
 222                 DateTimeFormat::setLocalTimeZone($this->timezone);
 223         }
 224
 225         /**
 226          * Get the timezone
 227          *
 228          * @return int
 229          */
 230         public function getTimeZone(): string
 231         {
 232                 return $this->timezone;
 233         }
 234
 235         /**
 236          * Set workerqueue information
 237          *
 238          * @param array $queue
 239          * @return void
 240          */
 241         public function setQueue(array $queue)
 242         {
 243                 $this->queue = $queue;
 244         }
 245
 246         /**
 247          * Fetch workerqueue information
 248          *
 249          * @return array Worker queue
 250          */
 251         public function getQueue(): array
 252         {
 253                 return $this->queue ?? [];
 254         }
 255
 256         /**
 257          * Fetch a specific workerqueue field
 258          *
 259          * @param string $index Work queue record to fetch
 260          * @return mixed Work queue item or NULL if not found
 261          */
 262         public function getQueueValue(string $index)
 263         {
 264                 return $this->queue[$index] ?? null;
 265         }
 266
 267         public function setThemeInfoValue(string $index, $value)
 268         {
 269                 $this->theme_info[$index] = $value;
 270         }
 271
 272         public function getThemeInfo()
 273         {
 274                 return $this->theme_info;
 275         }
 276
 277         public function getThemeInfoValue(string $index, $default = null)
 278         {
 279                 return $this->theme_info[$index] ?? $default;
 280         }
 281
 282         /**
 283          * Returns the current config cache of this node
 284          *
 285          * @return Cache
 286          */
 287         public function getConfigCache()
 288         {
 289                 return $this->config->getCache();
 290         }
 291
 292         /**
 293          * The basepath of this app
 294          *
 295          * @return string Base path from configuration
 296          */
 297         public function getBasePath(): string
 298         {
 299                 // Don't use the basepath of the config table for basepath (it should always be the config-file one)
 300                 return $this->config->getCache()->get('system', 'basepath');
 301         }
 302
 303         /**
 304          * @param Database                    $database The Friendica Database
 305          * @param IManageConfigValues         $config   The Configuration
 306          * @param App\Mode                    $mode     The mode of this Friendica app
 307          * @param BaseURL                     $baseURL  The full base URL of this Friendica app
 308          * @param LoggerInterface             $logger   The current app logger
 309          * @param Profiler                    $profiler The profiler of this application
 310          * @param L10n                        $l10n     The translator instance
 311          * @param App\Arguments               $args     The Friendica Arguments of the call
 312          * @param IManagePersonalConfigValues $pConfig  Personal configuration
 313          * @param IHandleUserSessions         $session  The (User)Session handler
 314          * @param DbaDefinition               $dbaDefinition
 315          * @param ViewDefinition              $viewDefinition
 316          */
 317         public function __construct(Database $database, IManageConfigValues $config, App\Mode $mode, BaseURL $baseURL, LoggerInterface $logger, Profiler $profiler, L10n $l10n, Arguments $args, IManagePersonalConfigValues $pConfig, IHandleUserSessions $session, DbaDefinition $dbaDefinition, ViewDefinition $viewDefinition)
 318         {
 319                 $this->database       = $database;
 320                 $this->config         = $config;
 321                 $this->mode           = $mode;
 322                 $this->baseURL        = $baseURL;
 323                 $this->profiler       = $profiler;
 324                 $this->logger         = $logger;
 325                 $this->l10n           = $l10n;
 326                 $this->args           = $args;
 327                 $this->pConfig        = $pConfig;
 328                 $this->session        = $session;
 329
 330                 $this->load($dbaDefinition, $viewDefinition);
 331         }
 332
 333         /**
 334          * Load the whole app instance
 335          */
 336         protected function load(DbaDefinition $dbaDefinition, ViewDefinition $viewDefinition)
 337         {
 338                 set_time_limit(0);
 339
 340                 // Normally this constant is defined - but not if "pcntl" isn't installed
 341                 if (!defined('SIGTERM')) {
 342                         define('SIGTERM', 15);
 343                 }
 344
 345                 // Ensure that all "strtotime" operations do run timezone independent
 346                 date_default_timezone_set('UTC');
 347
 348                 // This has to be quite large to deal with embedded private photos
 349                 ini_set('pcre.backtrack_limit', 500000);
 350
 351                 set_include_path(
 352                         get_include_path() . PATH_SEPARATOR
 353                         . $this->getBasePath() . DIRECTORY_SEPARATOR . 'include' . PATH_SEPARATOR
 354                         . $this->getBasePath() . DIRECTORY_SEPARATOR . 'library' . PATH_SEPARATOR
 355                         . $this->getBasePath());
 356
 357                 $this->profiler->reset();
 358
 359                 if ($this->mode->has(App\Mode::DBAVAILABLE)) {
 360                         $this->profiler->update($this->config);
 361
 362                         Core\Hook::loadHooks();
 363                         $loader = (new Config())->createConfigFileLoader($this->getBasePath(), $_SERVER);
 364                         Core\Hook::callAll('load_config', $loader);
 365
 366                         // Hooks are now working, reload the whole definitions with hook enabled
 367                         $dbaDefinition->load(true);
 368                         $viewDefinition->load(true);
 369                 }
 370
 371                 $this->loadDefaultTimezone();
 372                 // Register template engines
 373                 Core\Renderer::registerTemplateEngine('Friendica\Render\FriendicaSmartyEngine');
 374         }
 375
 376         /**
 377          * Loads the default timezone
 378          *
 379          * Include support for legacy $default_timezone
 380          *
 381          * @global string $default_timezone
 382          */
 383         private function loadDefaultTimezone()
 384         {
 385                 if ($this->config->get('system', 'default_timezone')) {
 386                         $timezone = $this->config->get('system', 'default_timezone', 'UTC');
 387                 } else {
 388                         global $default_timezone;
 389                         $timezone = $default_timezone ?? '' ?: 'UTC';
 390                 }
 391
 392                 $this->setTimeZone($timezone);
 393         }
 394
 395         /**
 396          * Returns the current theme name. May be overriden by the mobile theme name.
 397          *
 398          * @return string Current theme name or empty string in installation phase
 399          * @throws Exception
 400          */
 401         public function getCurrentTheme(): string
 402         {
 403                 if ($this->mode->isInstall()) {
 404                         return '';
 405                 }
 406
 407                 // Specific mobile theme override
 408                 if (($this->mode->isMobile() || $this->mode->isTablet()) && $this->session->get('show-mobile', true)) {
 409                         $user_mobile_theme = $this->getCurrentMobileTheme();
 410
 411                         // --- means same mobile theme as desktop
 412                         if (!empty($user_mobile_theme) && $user_mobile_theme !== '---') {
 413                                 return $user_mobile_theme;
 414                         }
 415                 }
 416
 417                 if (!$this->currentTheme) {
 418                         $this->computeCurrentTheme();
 419                 }
 420
 421                 return $this->currentTheme;
 422         }
 423
 424         /**
 425          * Returns the current mobile theme name.
 426          *
 427          * @return string Mobile theme name or empty string if installer
 428          * @throws Exception
 429          */
 430         public function getCurrentMobileTheme(): string
 431         {
 432                 if ($this->mode->isInstall()) {
 433                         return '';
 434                 }
 435
 436                 if (is_null($this->currentMobileTheme)) {
 437                         $this->computeCurrentMobileTheme();
 438                 }
 439
 440                 return $this->currentMobileTheme;
 441         }
 442
 443         /**
 444          * Setter for current theme name
 445          *
 446          * @param string $theme Name of current theme
 447          */
 448         public function setCurrentTheme(string $theme)
 449         {
 450                 $this->currentTheme = $theme;
 451         }
 452
 453         /**
 454          * Setter for current mobile theme name
 455          *
 456          * @param string $theme Name of current mobile theme
 457          */
 458         public function setCurrentMobileTheme(string $theme)
 459         {
 460                 $this->currentMobileTheme = $theme;
 461         }
 462
 463         /**
 464          * Computes the current theme name based on the node settings, the page owner settings and the user settings
 465          *
 466          * @throws Exception
 467          */
 468         private function computeCurrentTheme()
 469         {
 470                 $system_theme = $this->config->get('system', 'theme');
 471                 if (!$system_theme) {
 472                         throw new Exception($this->l10n->t('No system theme config value set.'));
 473                 }
 474
 475                 // Sane default
 476                 $this->setCurrentTheme($system_theme);
 477
 478                 $page_theme = null;
 479                 // Find the theme that belongs to the user whose stuff we are looking at
 480                 if (!empty($this->profile_owner) && ($this->profile_owner != $this->session->getLocalUserId())) {
 481                         // Allow folks to override user themes and always use their own on their own site.
 482                         // This works only if the user is on the same server
 483                         $user = $this->database->selectFirst('user', ['theme'], ['uid' => $this->profile_owner]);
 484                         if ($this->database->isResult($user) && !$this->session->getLocalUserId()) {
 485                                 $page_theme = $user['theme'];
 486                         }
 487                 }
 488
 489                 $theme_name = $page_theme ?: $this->session->get('theme', $system_theme);
 490
 491                 $theme_name = Strings::sanitizeFilePathItem($theme_name);
 492                 if ($theme_name
 493                     && in_array($theme_name, Theme::getAllowedList())
 494                     && (file_exists('view/theme/' . $theme_name . '/style.css')
 495                         || file_exists('view/theme/' . $theme_name . '/style.php'))
 496                 ) {
 497                         $this->setCurrentTheme($theme_name);
 498                 }
 499         }
 500
 501         /**
 502          * Computes the current mobile theme name based on the node settings, the page owner settings and the user settings
 503          */
 504         private function computeCurrentMobileTheme()
 505         {
 506                 $system_mobile_theme = $this->config->get('system', 'mobile-theme', '');
 507
 508                 // Sane default
 509                 $this->setCurrentMobileTheme($system_mobile_theme);
 510
 511                 $page_mobile_theme = null;
 512                 // Find the theme that belongs to the user whose stuff we are looking at
 513                 if (!empty($this->profile_owner) && ($this->profile_owner != $this->session->getLocalUserId())) {
 514                         // Allow folks to override user themes and always use their own on their own site.
 515                         // This works only if the user is on the same server
 516                         if (!$this->session->getLocalUserId()) {
 517                                 $page_mobile_theme = $this->pConfig->get($this->profile_owner, 'system', 'mobile-theme');
 518                         }
 519                 }
 520
 521                 $mobile_theme_name = $page_mobile_theme ?: $this->session->get('mobile-theme', $system_mobile_theme);
 522
 523                 $mobile_theme_name = Strings::sanitizeFilePathItem($mobile_theme_name);
 524                 if ($mobile_theme_name == '---'
 525                         ||
 526                         in_array($mobile_theme_name, Theme::getAllowedList())
 527                         && (file_exists('view/theme/' . $mobile_theme_name . '/style.css')
 528                                 || file_exists('view/theme/' . $mobile_theme_name . '/style.php'))
 529                 ) {
 530                         $this->setCurrentMobileTheme($mobile_theme_name);
 531                 }
 532         }
 533
 534         /**
 535          * Provide a sane default if nothing is chosen or the specified theme does not exist.
 536          *
 537          * @return string Current theme's stylsheet path
 538          * @throws Exception
 539          */
 540         public function getCurrentThemeStylesheetPath(): string
 541         {
 542                 return Core\Theme::getStylesheetPath($this->getCurrentTheme());
 543         }
 544
 545         /**
 546          * Sets the base url for use in cmdline programs which don't have
 547          * $_SERVER variables
 548          */
 549         public function checkURL()
 550         {
 551                 $url = $this->config->get('system', 'url');
 552
 553                 // if the url isn't set or the stored url is radically different
 554                 // than the currently visited url, store the current value accordingly.
 555                 // "Radically different" ignores common variations such as http vs https
 556                 // and www.example.com vs example.com.
 557                 // We will only change the url to an ip address if there is no existing setting
 558
 559                 if (empty($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()))) {
 560                         $this->config->set('system', 'url', $this->baseURL->get());
 561                 }
 562         }
 563
 564         /**
 565          * Frontend App script
 566          *
 567          * The App object behaves like a container and a dispatcher at the same time, including a representation of the
 568          * request and a representation of the response.
 569          *
 570          * This probably should change to limit the size of this monster method.
 571          *
 572          * @param App\Router                  $router
 573          * @param IManagePersonalConfigValues $pconfig
 574          * @param Authentication              $auth       The Authentication backend of the node
 575          * @param App\Page                    $page       The Friendica page printing container
 576          * @param ModuleHTTPException         $httpException The possible HTTP Exception container
 577          * @param HTTPInputData               $httpInput  A library for processing PHP input streams
 578          * @param float                       $start_time The start time of the overall script execution
 579          *
 580          * @throws HTTPException\InternalServerErrorException
 581          * @throws \ImagickException
 582          */
 583         public function runFrontend(App\Router $router, IManagePersonalConfigValues $pconfig, Authentication $auth, App\Page $page, ModuleHTTPException $httpException, HTTPInputData $httpInput, float $start_time)
 584         {
 585                 $this->profiler->set($start_time, 'start');
 586                 $this->profiler->set(microtime(true), 'classinit');
 587
 588                 $moduleName = $this->args->getModuleName();
 589                 $page->setLogging($this->args->getMethod(), $this->args->getModuleName(), $this->args->getCommand());
 590
 591                 try {
 592                         // Missing DB connection: ERROR
 593                         if ($this->mode->has(App\Mode::LOCALCONFIGPRESENT) && !$this->mode->has(App\Mode::DBAVAILABLE)) {
 594                                 throw new HTTPException\InternalServerErrorException($this->l10n->t('Apologies but the website is unavailable at the moment.'));
 595                         }
 596
 597                         if (!$this->mode->isInstall()) {
 598                                 // Force SSL redirection
 599                                 if ($this->baseURL->checkRedirectHttps()) {
 600                                         System::externalRedirect($this->baseURL->get() . '/' . $this->args->getQueryString());
 601                                 }
 602
 603                                 Core\Hook::callAll('init_1');
 604                         }
 605
 606                         if ($this->mode->isNormal() && !$this->mode->isBackend()) {
 607                                 $requester = HTTPSignature::getSigner('', $_SERVER);
 608                                 if (!empty($requester)) {
 609                                         Profile::addVisitorCookieForHandle($requester);
 610                                 }
 611                         }
 612
 613                         // ZRL
 614                         if (!empty($_GET['zrl']) && $this->mode->isNormal() && !$this->mode->isBackend() && !$this->session->getLocalUserId()) {
 615                                 // Only continue when the given profile link seems valid.
 616                                 // Valid profile links contain a path with "/profile/" and no query parameters
 617                                 if ((parse_url($_GET['zrl'], PHP_URL_QUERY) == '') &&
 618                                         strpos(parse_url($_GET['zrl'], PHP_URL_PATH) ?? '', '/profile/') !== false) {
 619                                         if ($this->session->get('visitor_home') != $_GET['zrl']) {
 620                                                 $this->session->set('my_url', $_GET['zrl']);
 621                                                 $this->session->set('authenticated', 0);
 622
 623                                                 $remote_contact = Contact::getByURL($_GET['zrl'], false, ['subscribe']);
 624                                                 if (!empty($remote_contact['subscribe'])) {
 625                                                         $_SESSION['remote_comment'] = $remote_contact['subscribe'];
 626                                                 }
 627                                         }
 628
 629                                         Model\Profile::zrlInit($this);
 630                                 } else {
 631                                         // Someone came with an invalid parameter, maybe as a DDoS attempt
 632                                         // We simply stop processing here
 633                                         $this->logger->debug('Invalid ZRL parameter.', ['zrl' => $_GET['zrl']]);
 634                                         throw new HTTPException\ForbiddenException();
 635                                 }
 636                         }
 637
 638                         if (!empty($_GET['owt']) && $this->mode->isNormal()) {
 639                                 $token = $_GET['owt'];
 640                                 Model\Profile::openWebAuthInit($token);
 641                         }
 642
 643                         if (!$this->mode->isBackend()) {
 644                                 $auth->withSession($this);
 645                         }
 646
 647                         if (empty($_SESSION['authenticated'])) {
 648                                 header('X-Account-Management-Status: none');
 649                         }
 650
 651                         /*
 652                          * check_config() is responsible for running update scripts. These automatically
 653                          * update the DB schema whenever we push a new one out. It also checks to see if
 654                          * any addons have been added or removed and reacts accordingly.
 655                          */
 656
 657                         // in install mode, any url loads install module
 658                         // but we need "view" module for stylesheet
 659                         if ($this->mode->isInstall() && $moduleName !== 'install') {
 660                                 $this->baseURL->redirect('install');
 661                         } else {
 662                                 $this->checkURL();
 663                                 Core\Update::check($this->getBasePath(), false, $this->mode);
 664                                 Core\Addon::loadAddons();
 665                                 Core\Hook::loadHooks();
 666                         }
 667
 668                         // Compatibility with the Android Diaspora client
 669                         if ($moduleName == 'stream') {
 670                                 $this->baseURL->redirect('network?order=post');
 671                         }
 672
 673                         if ($moduleName == 'conversations') {
 674                                 $this->baseURL->redirect('message');
 675                         }
 676
 677                         if ($moduleName == 'commented') {
 678                                 $this->baseURL->redirect('network?order=comment');
 679                         }
 680
 681                         if ($moduleName == 'liked') {
 682                                 $this->baseURL->redirect('network?order=comment');
 683                         }
 684
 685                         if ($moduleName == 'activity') {
 686                                 $this->baseURL->redirect('network?conv=1');
 687                         }
 688
 689                         if (($moduleName == 'status_messages') && ($this->args->getCommand() == 'status_messages/new')) {
 690                                 $this->baseURL->redirect('bookmarklet');
 691                         }
 692
 693                         if (($moduleName == 'user') && ($this->args->getCommand() == 'user/edit')) {
 694                                 $this->baseURL->redirect('settings');
 695                         }
 696
 697                         if (($moduleName == 'tag_followings') && ($this->args->getCommand() == 'tag_followings/manage')) {
 698                                 $this->baseURL->redirect('search');
 699                         }
 700
 701                         // Initialize module that can set the current theme in the init() method, either directly or via App->setProfileOwner
 702                         $page['page_title'] = $moduleName;
 703
 704                         // The "view" module is required to show the theme CSS
 705                         if (!$this->mode->isInstall() && !$this->mode->has(App\Mode::MAINTENANCEDISABLED) && $moduleName !== 'view') {
 706                                 $module = $router->getModule(Maintenance::class);
 707                         } else {
 708                                 // determine the module class and save it to the module instance
 709                                 // @todo there's an implicit dependency due SESSION::start(), so it has to be called here (yet)
 710                                 $module = $router->getModule();
 711                         }
 712
 713                         // Processes data from GET requests
 714                         $httpinput = $httpInput->process();
 715                         $input     = array_merge($httpinput['variables'], $httpinput['files'], $request ?? $_REQUEST);
 716
 717                         // Let the module run its internal process (init, get, post, ...)
 718                         $timestamp = microtime(true);
 719                         $response = $module->run($httpException, $input);
 720                         $this->profiler->set(microtime(true) - $timestamp, 'content');
 721                         if ($response->getHeaderLine(ICanCreateResponses::X_HEADER) === ICanCreateResponses::TYPE_HTML) {
 722                                 $page->run($this, $this->baseURL, $this->args, $this->mode, $response, $this->l10n, $this->profiler, $this->config, $pconfig, $this->session->getLocalUserId());
 723                         } else {
 724                                 $page->exit($response);
 725                         }
 726                 } catch (HTTPException $e) {
 727                         $httpException->rawContent($e);
 728                 }
 729                 $page->logRuntime($this->config, 'runFrontend');
 730         }
 731
 732         /**
 733          * Automatically redirects to relative or absolute URL
 734          * Should only be used if it isn't clear if the URL is either internal or external
 735          *
 736          * @param string $toUrl The target URL
 737          *
 738          * @throws HTTPException\InternalServerErrorException
 739          */
 740         public function redirect(string $toUrl)
 741         {
 742                 if (!empty(parse_url($toUrl, PHP_URL_SCHEME))) {
 743                         Core\System::externalRedirect($toUrl);
 744                 } else {
 745                         $this->baseURL->redirect($toUrl);
 746                 }
 747         }
 748 }