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\IHandleSessions;
  30 use Friendica\Core\Session\Capability\IHandleUserSessions;
  31 use Friendica\Module\Maintenance;
  32 use Friendica\Security\Authentication;
  33 use Friendica\Core\Config\ValueObject\Cache;
  34 use Friendica\Core\Config\Capability\IManageConfigValues;
  35 use Friendica\Core\PConfig\Capability\IManagePersonalConfigValues;
  36 use Friendica\Core\L10n;
  37 use Friendica\Core\System;
  38 use Friendica\Core\Theme;
  39 use Friendica\Database\Database;
  40 use Friendica\Model\Contact;
  41 use Friendica\Model\Profile;
  42 use Friendica\Module\Special\HTTPException as ModuleHTTPException;
  43 use Friendica\Network\HTTPException;
  44 use Friendica\Util\DateTimeFormat;
  45 use Friendica\Util\HTTPInputData;
  46 use Friendica\Util\HTTPSignature;
  47 use Friendica\Util\Profiler;
  48 use Friendica\Util\Strings;
  49 use Psr\Log\LoggerInterface;
  50
  51 /**
  52  * Our main application structure for the life of this page.
  53  *
  54  * Primarily deals with the URL that got us here
  55  * and tries to make some sense of it, and
  56  * stores our page contents and config storage
  57  * and anything else that might need to be passed around
  58  * before we spit the page out.
  59  *
  60  */
  61 class App
  62 {
  63         const PLATFORM = 'Friendica';
  64         const CODENAME = 'Giant Rhubarb';
  65         const VERSION  = '2022.12-dev';
  66
  67         // Allow themes to control internal parameters
  68         // by changing App values in theme.php
  69         private $theme_info = [
  70                 'videowidth'        => 425,
  71                 'videoheight'       => 350,
  72                 'events_in_profile' => true
  73         ];
  74
  75         private $user_id       = 0;
  76         private $nickname      = '';
  77         private $timezone      = '';
  78         private $profile_owner = 0;
  79         private $contact_id    = 0;
  80         private $queue         = [];
  81
  82         /**
  83          * @var App\Mode The Mode of the Application
  84          */
  85         private $mode;
  86
  87         /**
  88          * @var BaseURL
  89          */
  90         private $baseURL;
  91
  92         /** @var string The name of the current theme */
  93         private $currentTheme;
  94         /** @var string The name of the current mobile theme */
  95         private $currentMobileTheme;
  96
  97         /**
  98          * @var IManageConfigValues The config
  99          */
 100         private $config;
 101
 102         /**
 103          * @var LoggerInterface The logger
 104          */
 105         private $logger;
 106
 107         /**
 108          * @var Profiler The profiler of this app
 109          */
 110         private $profiler;
 111
 112         /**
 113          * @var Database The Friendica database connection
 114          */
 115         private $database;
 116
 117         /**
 118          * @var L10n The translator
 119          */
 120         private $l10n;
 121
 122         /**
 123          * @var App\Arguments
 124          */
 125         private $args;
 126
 127         /**
 128          * @var IManagePersonalConfigValues
 129          */
 130         private $pConfig;
 131
 132         /**
 133          * @var IHandleSessions
 134          */
 135         private $session;
 136
 137         /**
 138          * Set the user ID
 139          *
 140          * @param int $user_id
 141          * @return void
 142          */
 143         public function setLoggedInUserId(int $user_id)
 144         {
 145                 $this->user_id = $user_id;
 146         }
 147
 148         /**
 149          * Set the nickname
 150          *
 151          * @param int $user_id
 152          * @return void
 153          */
 154         public function setLoggedInUserNickname(string $nickname)
 155         {
 156                 $this->nickname = $nickname;
 157         }
 158
 159         public function isLoggedIn(): bool
 160         {
 161                 return DI::userSession()->getLocalUserId() && $this->user_id && ($this->user_id == DI::userSession()->getLocalUserId());
 162         }
 163
 164         /**
 165          * Check if current user has admin role.
 166          *
 167          * @return bool true if user is an admin
 168          */
 169         public function isSiteAdmin(): bool
 170         {
 171                 $admin_email = $this->config->get('config', 'admin_email');
 172
 173                 $adminlist = explode(',', str_replace(' ', '', $admin_email));
 174
 175                 return DI::userSession()->getLocalUserId() && $admin_email && $this->database->exists('user', ['uid' => $this->getLoggedInUserId(), 'email' => $adminlist]);
 176         }
 177
 178         /**
 179          * Fetch the user id
 180          * @return int User id
 181          */
 182         public function getLoggedInUserId(): int
 183         {
 184                 return $this->user_id;
 185         }
 186
 187         /**
 188          * Fetch the user nick name
 189          * @return string User's nickname
 190          */
 191         public function getLoggedInUserNickname(): string
 192         {
 193                 return $this->nickname;
 194         }
 195
 196         /**
 197          * Set the profile owner ID
 198          *
 199          * @param int $owner_id
 200          * @return void
 201          */
 202         public function setProfileOwner(int $owner_id)
 203         {
 204                 $this->profile_owner = $owner_id;
 205         }
 206
 207         /**
 208          * Get the profile owner ID
 209          *
 210          * @return int
 211          */
 212         public function getProfileOwner(): int
 213         {
 214                 return $this->profile_owner;
 215         }
 216
 217         /**
 218          * Set the contact ID
 219          *
 220          * @param int $contact_id
 221          * @return void
 222          */
 223         public function setContactId(int $contact_id)
 224         {
 225                 $this->contact_id = $contact_id;
 226         }
 227
 228         /**
 229          * Get the contact ID
 230          *
 231          * @return int
 232          */
 233         public function getContactId(): int
 234         {
 235                 return $this->contact_id;
 236         }
 237
 238         /**
 239          * Set the timezone
 240          *
 241          * @param string $timezone A valid time zone identifier, see https://www.php.net/manual/en/timezones.php
 242          * @return void
 243          */
 244         public function setTimeZone(string $timezone)
 245         {
 246                 $this->timezone = (new \DateTimeZone($timezone))->getName();
 247                 DateTimeFormat::setLocalTimeZone($this->timezone);
 248         }
 249
 250         /**
 251          * Get the timezone
 252          *
 253          * @return int
 254          */
 255         public function getTimeZone(): string
 256         {
 257                 return $this->timezone;
 258         }
 259
 260         /**
 261          * Set workerqueue information
 262          *
 263          * @param array $queue
 264          * @return void
 265          */
 266         public function setQueue(array $queue)
 267         {
 268                 $this->queue = $queue;
 269         }
 270
 271         /**
 272          * Fetch workerqueue information
 273          *
 274          * @return array Worker queue
 275          */
 276         public function getQueue(): array
 277         {
 278                 return $this->queue ?? [];
 279         }
 280
 281         /**
 282          * Fetch a specific workerqueue field
 283          *
 284          * @param string $index Work queue record to fetch
 285          * @return mixed Work queue item or NULL if not found
 286          */
 287         public function getQueueValue(string $index)
 288         {
 289                 return $this->queue[$index] ?? null;
 290         }
 291
 292         public function setThemeInfoValue(string $index, $value)
 293         {
 294                 $this->theme_info[$index] = $value;
 295         }
 296
 297         public function getThemeInfo()
 298         {
 299                 return $this->theme_info;
 300         }
 301
 302         public function getThemeInfoValue(string $index, $default = null)
 303         {
 304                 return $this->theme_info[$index] ?? $default;
 305         }
 306
 307         /**
 308          * Returns the current config cache of this node
 309          *
 310          * @return Cache
 311          */
 312         public function getConfigCache()
 313         {
 314                 return $this->config->getCache();
 315         }
 316
 317         /**
 318          * The basepath of this app
 319          *
 320          * @return string Base path from configuration
 321          */
 322         public function getBasePath(): string
 323         {
 324                 // Don't use the basepath of the config table for basepath (it should always be the config-file one)
 325                 return $this->config->getCache()->get('system', 'basepath');
 326         }
 327
 328         /**
 329          * @param Database                    $database The Friendica Database
 330          * @param IManageConfigValues         $config   The Configuration
 331          * @param App\Mode                    $mode     The mode of this Friendica app
 332          * @param BaseURL                     $baseURL  The full base URL of this Friendica app
 333          * @param LoggerInterface             $logger   The current app logger
 334          * @param Profiler                    $profiler The profiler of this application
 335          * @param L10n                        $l10n     The translator instance
 336          * @param App\Arguments               $args     The Friendica Arguments of the call
 337          * @param IManagePersonalConfigValues $pConfig  Personal configuration
 338          * @param IHandleSessions             $session  The Session handler
 339          */
 340         public function __construct(Database $database, IManageConfigValues $config, App\Mode $mode, BaseURL $baseURL, LoggerInterface $logger, Profiler $profiler, L10n $l10n, Arguments $args, IManagePersonalConfigValues $pConfig, IHandleSessions $session)
 341         {
 342                 $this->database = $database;
 343                 $this->config   = $config;
 344                 $this->mode     = $mode;
 345                 $this->baseURL  = $baseURL;
 346                 $this->profiler = $profiler;
 347                 $this->logger   = $logger;
 348                 $this->l10n     = $l10n;
 349                 $this->args     = $args;
 350                 $this->pConfig  = $pConfig;
 351                 $this->session  = $session;
 352
 353                 $this->load();
 354         }
 355
 356         /**
 357          * Load the whole app instance
 358          */
 359         public function load()
 360         {
 361                 set_time_limit(0);
 362
 363                 // Normally this constant is defined - but not if "pcntl" isn't installed
 364                 if (!defined('SIGTERM')) {
 365                         define('SIGTERM', 15);
 366                 }
 367
 368                 // Ensure that all "strtotime" operations do run timezone independent
 369                 date_default_timezone_set('UTC');
 370
 371                 // This has to be quite large to deal with embedded private photos
 372                 ini_set('pcre.backtrack_limit', 500000);
 373
 374                 set_include_path(
 375                         get_include_path() . PATH_SEPARATOR
 376                         . $this->getBasePath() . DIRECTORY_SEPARATOR . 'include' . PATH_SEPARATOR
 377                         . $this->getBasePath() . DIRECTORY_SEPARATOR . 'library' . PATH_SEPARATOR
 378                         . $this->getBasePath());
 379
 380                 $this->profiler->reset();
 381
 382                 if ($this->mode->has(App\Mode::DBAVAILABLE)) {
 383                         $this->profiler->update($this->config);
 384
 385                         Core\Hook::loadHooks();
 386                         $loader = (new Config())->createConfigFileLoader($this->getBasePath(), $_SERVER);
 387                         Core\Hook::callAll('load_config', $loader);
 388                 }
 389
 390                 $this->loadDefaultTimezone();
 391                 // Register template engines
 392                 Core\Renderer::registerTemplateEngine('Friendica\Render\FriendicaSmartyEngine');
 393         }
 394
 395         /**
 396          * Loads the default timezone
 397          *
 398          * Include support for legacy $default_timezone
 399          *
 400          * @global string $default_timezone
 401          */
 402         private function loadDefaultTimezone()
 403         {
 404                 if ($this->config->get('system', 'default_timezone')) {
 405                         $timezone = $this->config->get('system', 'default_timezone', 'UTC');
 406                 } else {
 407                         global $default_timezone;
 408                         $timezone = $default_timezone ?? '' ?: 'UTC';
 409                 }
 410
 411                 $this->setTimeZone($timezone);
 412         }
 413
 414         /**
 415          * Returns the current theme name. May be overriden by the mobile theme name.
 416          *
 417          * @return string Current theme name or empty string in installation phase
 418          * @throws Exception
 419          */
 420         public function getCurrentTheme(): string
 421         {
 422                 if ($this->mode->isInstall()) {
 423                         return '';
 424                 }
 425
 426                 // Specific mobile theme override
 427                 if (($this->mode->isMobile() || $this->mode->isTablet()) && $this->session->get('show-mobile', true)) {
 428                         $user_mobile_theme = $this->getCurrentMobileTheme();
 429
 430                         // --- means same mobile theme as desktop
 431                         if (!empty($user_mobile_theme) && $user_mobile_theme !== '---') {
 432                                 return $user_mobile_theme;
 433                         }
 434                 }
 435
 436                 if (!$this->currentTheme) {
 437                         $this->computeCurrentTheme();
 438                 }
 439
 440                 return $this->currentTheme;
 441         }
 442
 443         /**
 444          * Returns the current mobile theme name.
 445          *
 446          * @return string Mobile theme name or empty string if installer
 447          * @throws Exception
 448          */
 449         public function getCurrentMobileTheme(): string
 450         {
 451                 if ($this->mode->isInstall()) {
 452                         return '';
 453                 }
 454
 455                 if (is_null($this->currentMobileTheme)) {
 456                         $this->computeCurrentMobileTheme();
 457                 }
 458
 459                 return $this->currentMobileTheme;
 460         }
 461
 462         /**
 463          * Setter for current theme name
 464          *
 465          * @param string $theme Name of current theme
 466          */
 467         public function setCurrentTheme(string $theme)
 468         {
 469                 $this->currentTheme = $theme;
 470         }
 471
 472         /**
 473          * Setter for current mobile theme name
 474          *
 475          * @param string $theme Name of current mobile theme
 476          */
 477         public function setCurrentMobileTheme(string $theme)
 478         {
 479                 $this->currentMobileTheme = $theme;
 480         }
 481
 482         /**
 483          * Computes the current theme name based on the node settings, the page owner settings and the user settings
 484          *
 485          * @throws Exception
 486          */
 487         private function computeCurrentTheme()
 488         {
 489                 $system_theme = $this->config->get('system', 'theme');
 490                 if (!$system_theme) {
 491                         throw new Exception($this->l10n->t('No system theme config value set.'));
 492                 }
 493
 494                 // Sane default
 495                 $this->setCurrentTheme($system_theme);
 496
 497                 $page_theme = null;
 498                 // Find the theme that belongs to the user whose stuff we are looking at
 499                 if (!empty($this->profile_owner) && ($this->profile_owner != DI::userSession()->getLocalUserId())) {
 500                         // Allow folks to override user themes and always use their own on their own site.
 501                         // This works only if the user is on the same server
 502                         $user = $this->database->selectFirst('user', ['theme'], ['uid' => $this->profile_owner]);
 503                         if ($this->database->isResult($user) && !DI::userSession()->getLocalUserId()) {
 504                                 $page_theme = $user['theme'];
 505                         }
 506                 }
 507
 508                 $theme_name = $page_theme ?: $this->session->get('theme', $system_theme);
 509
 510                 $theme_name = Strings::sanitizeFilePathItem($theme_name);
 511                 if ($theme_name
 512                     && in_array($theme_name, Theme::getAllowedList())
 513                     && (file_exists('view/theme/' . $theme_name . '/style.css')
 514                         || file_exists('view/theme/' . $theme_name . '/style.php'))
 515                 ) {
 516                         $this->setCurrentTheme($theme_name);
 517                 }
 518         }
 519
 520         /**
 521          * Computes the current mobile theme name based on the node settings, the page owner settings and the user settings
 522          */
 523         private function computeCurrentMobileTheme()
 524         {
 525                 $system_mobile_theme = $this->config->get('system', 'mobile-theme', '');
 526
 527                 // Sane default
 528                 $this->setCurrentMobileTheme($system_mobile_theme);
 529
 530                 $page_mobile_theme = null;
 531                 // Find the theme that belongs to the user whose stuff we are looking at
 532                 if (!empty($this->profile_owner) && ($this->profile_owner != DI::userSession()->getLocalUserId())) {
 533                         // Allow folks to override user themes and always use their own on their own site.
 534                         // This works only if the user is on the same server
 535                         if (!DI::userSession()->getLocalUserId()) {
 536                                 $page_mobile_theme = $this->pConfig->get($this->profile_owner, 'system', 'mobile-theme');
 537                         }
 538                 }
 539
 540                 $mobile_theme_name = $page_mobile_theme ?: $this->session->get('mobile-theme', $system_mobile_theme);
 541
 542                 $mobile_theme_name = Strings::sanitizeFilePathItem($mobile_theme_name);
 543                 if ($mobile_theme_name == '---'
 544                         ||
 545                         in_array($mobile_theme_name, Theme::getAllowedList())
 546                         && (file_exists('view/theme/' . $mobile_theme_name . '/style.css')
 547                                 || file_exists('view/theme/' . $mobile_theme_name . '/style.php'))
 548                 ) {
 549                         $this->setCurrentMobileTheme($mobile_theme_name);
 550                 }
 551         }
 552
 553         /**
 554          * Provide a sane default if nothing is chosen or the specified theme does not exist.
 555          *
 556          * @return string Current theme's stylsheet path
 557          * @throws Exception
 558          */
 559         public function getCurrentThemeStylesheetPath(): string
 560         {
 561                 return Core\Theme::getStylesheetPath($this->getCurrentTheme());
 562         }
 563
 564         /**
 565          * Sets the base url for use in cmdline programs which don't have
 566          * $_SERVER variables
 567          */
 568         public function checkURL()
 569         {
 570                 $url = $this->config->get('system', 'url');
 571
 572                 // if the url isn't set or the stored url is radically different
 573                 // than the currently visited url, store the current value accordingly.
 574                 // "Radically different" ignores common variations such as http vs https
 575                 // and www.example.com vs example.com.
 576                 // We will only change the url to an ip address if there is no existing setting
 577
 578                 if (empty($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()))) {
 579                         $this->config->set('system', 'url', $this->baseURL->get());
 580                 }
 581         }
 582
 583         /**
 584          * Frontend App script
 585          *
 586          * The App object behaves like a container and a dispatcher at the same time, including a representation of the
 587          * request and a representation of the response.
 588          *
 589          * This probably should change to limit the size of this monster method.
 590          *
 591          * @param App\Router                  $router
 592          * @param IManagePersonalConfigValues $pconfig
 593          * @param Authentication              $auth       The Authentication backend of the node
 594          * @param App\Page                    $page       The Friendica page printing container
 595          * @param HTTPInputData               $httpInput  A library for processing PHP input streams
 596          * @param IHandleUserSessions         $userSessions The UserSession class
 597          * @param float                       $start_time The start time of the overall script execution
 598          *
 599          * @throws HTTPException\InternalServerErrorException
 600          * @throws \ImagickException
 601          */
 602         public function runFrontend(App\Router $router, IManagePersonalConfigValues $pconfig, Authentication $auth, App\Page $page, HTTPInputData $httpInput, IHandleUserSessions $userSessions, float $start_time)
 603         {
 604                 $this->profiler->set($start_time, 'start');
 605                 $this->profiler->set(microtime(true), 'classinit');
 606
 607                 $moduleName = $this->args->getModuleName();
 608                 $page->setLogging($this->args->getMethod(), $this->args->getModuleName(), $this->args->getCommand());
 609
 610                 try {
 611                         // Missing DB connection: ERROR
 612                         if ($this->mode->has(App\Mode::LOCALCONFIGPRESENT) && !$this->mode->has(App\Mode::DBAVAILABLE)) {
 613                                 throw new HTTPException\InternalServerErrorException($this->l10n->t('Apologies but the website is unavailable at the moment.'));
 614                         }
 615
 616                         if (!$this->mode->isInstall()) {
 617                                 // Force SSL redirection
 618                                 if ($this->baseURL->checkRedirectHttps()) {
 619                                         System::externalRedirect($this->baseURL->get() . '/' . $this->args->getQueryString());
 620                                 }
 621
 622                                 Core\Hook::callAll('init_1');
 623                         }
 624
 625                         if ($this->mode->isNormal() && !$this->mode->isBackend()) {
 626                                 $requester = HTTPSignature::getSigner('', $_SERVER);
 627                                 if (!empty($requester)) {
 628                                         Profile::addVisitorCookieForHandle($requester);
 629                                 }
 630                         }
 631
 632                         // ZRL
 633                         if (!empty($_GET['zrl']) && $this->mode->isNormal() && !$this->mode->isBackend() && !DI::userSession()->getLocalUserId()) {
 634                                 // Only continue when the given profile link seems valid
 635                                 // Valid profile links contain a path with "/profile/" and no query parameters
 636                                 if ((parse_url($_GET['zrl'], PHP_URL_QUERY) == '') &&
 637                                         strstr(parse_url($_GET['zrl'], PHP_URL_PATH), '/profile/')) {
 638                                         if ($this->session->get('visitor_home') != $_GET['zrl']) {
 639                                                 $this->session->set('my_url', $_GET['zrl']);
 640                                                 $this->session->set('authenticated', 0);
 641
 642                                                 $remote_contact = Contact::getByURL($_GET['zrl'], false, ['subscribe']);
 643                                                 if (!empty($remote_contact['subscribe'])) {
 644                                                         $_SESSION['remote_comment'] = $remote_contact['subscribe'];
 645                                                 }
 646                                         }
 647
 648                                         Model\Profile::zrlInit($this);
 649                                 } else {
 650                                         // Someone came with an invalid parameter, maybe as a DDoS attempt
 651                                         // We simply stop processing here
 652                                         $this->logger->debug('Invalid ZRL parameter.', ['zrl' => $_GET['zrl']]);
 653                                         throw new HTTPException\ForbiddenException();
 654                                 }
 655                         }
 656
 657                         if (!empty($_GET['owt']) && $this->mode->isNormal()) {
 658                                 $token = $_GET['owt'];
 659                                 Model\Profile::openWebAuthInit($token);
 660                         }
 661
 662                         if (!$this->mode->isBackend()) {
 663                                 $auth->withSession($this);
 664                         }
 665
 666                         if (empty($_SESSION['authenticated'])) {
 667                                 header('X-Account-Management-Status: none');
 668                         }
 669
 670                         /*
 671                          * check_config() is responsible for running update scripts. These automatically
 672                          * update the DB schema whenever we push a new one out. It also checks to see if
 673                          * any addons have been added or removed and reacts accordingly.
 674                          */
 675
 676                         // in install mode, any url loads install module
 677                         // but we need "view" module for stylesheet
 678                         if ($this->mode->isInstall() && $moduleName !== 'install') {
 679                                 $this->baseURL->redirect('install');
 680                         } else {
 681                                 $this->checkURL();
 682                                 Core\Update::check($this->getBasePath(), false, $this->mode);
 683                                 Core\Addon::loadAddons();
 684                                 Core\Hook::loadHooks();
 685                         }
 686
 687                         // Compatibility with the Android Diaspora client
 688                         if ($moduleName == 'stream') {
 689                                 $this->baseURL->redirect('network?order=post');
 690                         }
 691
 692                         if ($moduleName == 'conversations') {
 693                                 $this->baseURL->redirect('message');
 694                         }
 695
 696                         if ($moduleName == 'commented') {
 697                                 $this->baseURL->redirect('network?order=comment');
 698                         }
 699
 700                         if ($moduleName == 'liked') {
 701                                 $this->baseURL->redirect('network?order=comment');
 702                         }
 703
 704                         if ($moduleName == 'activity') {
 705                                 $this->baseURL->redirect('network?conv=1');
 706                         }
 707
 708                         if (($moduleName == 'status_messages') && ($this->args->getCommand() == 'status_messages/new')) {
 709                                 $this->baseURL->redirect('bookmarklet');
 710                         }
 711
 712                         if (($moduleName == 'user') && ($this->args->getCommand() == 'user/edit')) {
 713                                 $this->baseURL->redirect('settings');
 714                         }
 715
 716                         if (($moduleName == 'tag_followings') && ($this->args->getCommand() == 'tag_followings/manage')) {
 717                                 $this->baseURL->redirect('search');
 718                         }
 719
 720                         // Initialize module that can set the current theme in the init() method, either directly or via App->setProfileOwner
 721                         $page['page_title'] = $moduleName;
 722
 723                         // The "view" module is required to show the theme CSS
 724                         if (!$this->mode->isInstall() && !$this->mode->has(App\Mode::MAINTENANCEDISABLED) && $moduleName !== 'view') {
 725                                 $module = $router->getModule(Maintenance::class);
 726                         } else {
 727                                 // determine the module class and save it to the module instance
 728                                 // @todo there's an implicit dependency due SESSION::start(), so it has to be called here (yet)
 729                                 $module = $router->getModule();
 730                         }
 731
 732                         // Processes data from GET requests
 733                         $httpinput = $httpInput->process();
 734                         $input     = array_merge($httpinput['variables'], $httpinput['files'], $request ?? $_REQUEST);
 735
 736                         // Let the module run it's internal process (init, get, post, ...)
 737                         $timestamp = microtime(true);
 738                         $response = $module->run($input);
 739                         $this->profiler->set(microtime(true) - $timestamp, 'content');
 740                         if ($response->getHeaderLine(ICanCreateResponses::X_HEADER) === ICanCreateResponses::TYPE_HTML) {
 741                                 $page->run($this, $this->baseURL, $this->args, $this->mode, $response, $this->l10n, $this->profiler, $this->config, $pconfig, $userSessions->getLocalUserId());
 742                         } else {
 743                                 $page->exit($response);
 744                         }
 745                 } catch (HTTPException $e) {
 746                         (new ModuleHTTPException())->rawContent($e);
 747                 }
 748                 $page->logRuntime($this->config, 'runFrontend');
 749         }
 750
 751         /**
 752          * Automatically redirects to relative or absolute URL
 753          * Should only be used if it isn't clear if the URL is either internal or external
 754          *
 755          * @param string $toUrl The target URL
 756          *
 757          * @throws HTTPException\InternalServerErrorException
 758          */
 759         public function redirect(string $toUrl)
 760         {
 761                 if (!empty(parse_url($toUrl, PHP_URL_SCHEME))) {
 762                         Core\System::externalRedirect($toUrl);
 763                 } else {
 764                         $this->baseURL->redirect($toUrl);
 765                 }
 766         }
 767 }