src/App.php

   1 <?php
   2 /**
   3  * @copyright Copyright (C) 2010-2021, 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 Dice\Dice;
  25 use Exception;
  26 use Friendica\App\Arguments;
  27 use Friendica\App\BaseURL;
  28 use Friendica\App\ModuleController;
  29 use Friendica\Core\Config\Factory\Config;
  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\HTTPSignature;
  45 use Friendica\Util\Profiler;
  46 use Friendica\Util\Strings;
  47 use Psr\Log\LoggerInterface;
  48
  49 /**
  50  * Our main application structure for the life of this page.
  51  *
  52  * Primarily deals with the URL that got us here
  53  * and tries to make some sense of it, and
  54  * stores our page contents and config storage
  55  * and anything else that might need to be passed around
  56  * before we spit the page out.
  57  *
  58  */
  59 class App
  60 {
  61         // Allow themes to control internal parameters
  62         // by changing App values in theme.php
  63         private $theme_info = [
  64                 'videowidth'        => 425,
  65                 'videoheight'       => 350,
  66                 'events_in_profile' => true
  67         ];
  68
  69         private $user_id       = 0;
  70         private $nickname      = '';
  71         private $timezone      = '';
  72         private $profile_owner = 0;
  73         private $contact_id    = 0;
  74         private $queue         = [];
  75
  76         /**
  77          * @var App\Mode The Mode of the Application
  78          */
  79         private $mode;
  80
  81         /**
  82          * @var BaseURL
  83          */
  84         private $baseURL;
  85
  86         /** @var string The name of the current theme */
  87         private $currentTheme;
  88         /** @var string The name of the current mobile theme */
  89         private $currentMobileTheme;
  90
  91         /**
  92          * @var IManageConfigValues The config
  93          */
  94         private $config;
  95
  96         /**
  97          * @var LoggerInterface The logger
  98          */
  99         private $logger;
 100
 101         /**
 102          * @var Profiler The profiler of this app
 103          */
 104         private $profiler;
 105
 106         /**
 107          * @var Database The Friendica database connection
 108          */
 109         private $database;
 110
 111         /**
 112          * @var L10n The translator
 113          */
 114         private $l10n;
 115
 116         /**
 117          * @var App\Arguments
 118          */
 119         private $args;
 120
 121         /**
 122          * @var Core\System The system methods
 123          */
 124         private $system;
 125
 126         /**
 127          * @var IManagePersonalConfigValues
 128          */
 129         private $pConfig;
 130
 131         /**
 132          * Set the user ID
 133          *
 134          * @param int $user_id
 135          * @return void
 136          */
 137         public function setLoggedInUserId(int $user_id)
 138         {
 139                 $this->user_id = $user_id;
 140         }
 141
 142         /**
 143          * Set the nickname
 144          *
 145          * @param int $user_id
 146          * @return void
 147          */
 148         public function setLoggedInUserNickname(string $nickname)
 149         {
 150                 $this->nickname = $nickname;
 151         }
 152
 153         public function isLoggedIn()
 154         {
 155                 return local_user() && $this->user_id && ($this->user_id == local_user());
 156         }
 157
 158         /**
 159          * Check if current user has admin role.
 160          *
 161          * @return bool true if user is an admin
 162          */
 163         public function isSiteAdmin()
 164         {
 165                 $admin_email = $this->config->get('config', 'admin_email');
 166
 167                 $adminlist = explode(',', str_replace(' ', '', $admin_email));
 168
 169                 return local_user() && $admin_email && $this->database->exists('user', ['uid' => $this->getLoggedInUserId(), 'email' => $adminlist]);
 170         }
 171
 172         /**
 173          * Fetch the user id
 174          * @return int
 175          */
 176         public function getLoggedInUserId()
 177         {
 178                 return $this->user_id;
 179         }
 180
 181         /**
 182          * Fetch the user nick name
 183          * @return string
 184          */
 185         public function getLoggedInUserNickname()
 186         {
 187                 return $this->nickname;
 188         }
 189
 190         /**
 191          * Set the profile owner ID
 192          *
 193          * @param int $owner_id
 194          * @return void
 195          */
 196         public function setProfileOwner(int $owner_id)
 197         {
 198                 $this->profile_owner = $owner_id;
 199         }
 200
 201         /**
 202          * Get the profile owner ID
 203          *
 204          * @return int
 205          */
 206         public function getProfileOwner():int
 207         {
 208                 return $this->profile_owner;
 209         }
 210
 211         /**
 212          * Set the contact ID
 213          *
 214          * @param int $contact_id
 215          * @return void
 216          */
 217         public function setContactId(int $contact_id)
 218         {
 219                 $this->contact_id = $contact_id;
 220         }
 221
 222         /**
 223          * Get the contact ID
 224          *
 225          * @return int
 226          */
 227         public function getContactId():int
 228         {
 229                 return $this->contact_id;
 230         }
 231
 232         /**
 233          * Set the timezone
 234          *
 235          * @param string $timezone A valid time zone identifier, see https://www.php.net/manual/en/timezones.php
 236          * @return void
 237          */
 238         public function setTimeZone(string $timezone)
 239         {
 240                 $this->timezone = (new \DateTimeZone($timezone))->getName();
 241                 DateTimeFormat::setLocalTimeZone($this->timezone);
 242         }
 243
 244         /**
 245          * Get the timezone
 246          *
 247          * @return int
 248          */
 249         public function getTimeZone():string
 250         {
 251                 return $this->timezone;
 252         }
 253
 254         /**
 255          * Set workerqueue information
 256          *
 257          * @param array $queue
 258          * @return void
 259          */
 260         public function setQueue(array $queue)
 261         {
 262                 $this->queue = $queue;
 263         }
 264
 265         /**
 266          * Fetch workerqueue information
 267          *
 268          * @return array
 269          */
 270         public function getQueue()
 271         {
 272                 return $this->queue ?? [];
 273         }
 274
 275         /**
 276          * Fetch a specific workerqueue field
 277          *
 278          * @param string $index
 279          * @return mixed
 280          */
 281         public function getQueueValue(string $index)
 282         {
 283                 return $this->queue[$index] ?? null;
 284         }
 285
 286         public function setThemeInfoValue(string $index, $value)
 287         {
 288                 $this->theme_info[$index] = $value;
 289         }
 290
 291         public function getThemeInfo()
 292         {
 293                 return $this->theme_info;
 294         }
 295
 296         public function getThemeInfoValue(string $index, $default = null)
 297         {
 298                 return $this->theme_info[$index] ?? $default;
 299         }
 300
 301         /**
 302          * Returns the current config cache of this node
 303          *
 304          * @return Cache
 305          */
 306         public function getConfigCache()
 307         {
 308                 return $this->config->getCache();
 309         }
 310
 311         /**
 312          * The basepath of this app
 313          *
 314          * @return string
 315          */
 316         public function getBasePath()
 317         {
 318                 // Don't use the basepath of the config table for basepath (it should always be the config-file one)
 319                 return $this->config->getCache()->get('system', 'basepath');
 320         }
 321
 322         /**
 323          * @param Database                    $database The Friendica Database
 324          * @param IManageConfigValues         $config   The Configuration
 325          * @param App\Mode                    $mode     The mode of this Friendica app
 326          * @param BaseURL                     $baseURL  The full base URL of this Friendica app
 327          * @param LoggerInterface             $logger   The current app logger
 328          * @param Profiler                    $profiler The profiler of this application
 329          * @param L10n                        $l10n     The translator instance
 330          * @param App\Arguments               $args     The Friendica Arguments of the call
 331          * @param Core\System                 $system   The system methods
 332          * @param IManagePersonalConfigValues $pConfig  Personal configuration
 333          */
 334         public function __construct(Database $database, IManageConfigValues $config, App\Mode $mode, BaseURL $baseURL, LoggerInterface $logger, Profiler $profiler, L10n $l10n, Arguments $args, Core\System $system, IManagePersonalConfigValues $pConfig)
 335         {
 336                 $this->database = $database;
 337                 $this->config   = $config;
 338                 $this->mode     = $mode;
 339                 $this->baseURL  = $baseURL;
 340                 $this->profiler = $profiler;
 341                 $this->logger   = $logger;
 342                 $this->l10n     = $l10n;
 343                 $this->args     = $args;
 344                 $this->system   = $system;
 345                 $this->pConfig  = $pConfig;
 346
 347                 $this->load();
 348         }
 349
 350         /**
 351          * Load the whole app instance
 352          */
 353         public function load()
 354         {
 355                 set_time_limit(0);
 356
 357                 // Ensure that all "strtotime" operations do run timezone independent
 358                 date_default_timezone_set('UTC');
 359
 360                 // This has to be quite large to deal with embedded private photos
 361                 ini_set('pcre.backtrack_limit', 500000);
 362
 363                 set_include_path(
 364                         get_include_path() . PATH_SEPARATOR
 365                         . $this->getBasePath() . DIRECTORY_SEPARATOR . 'include' . PATH_SEPARATOR
 366                         . $this->getBasePath() . DIRECTORY_SEPARATOR . 'library' . PATH_SEPARATOR
 367                         . $this->getBasePath());
 368
 369                 $this->profiler->reset();
 370
 371                 if ($this->mode->has(App\Mode::DBAVAILABLE)) {
 372                         $this->profiler->update($this->config);
 373
 374                         Core\Hook::loadHooks();
 375                         $loader = (new Config())->createConfigFileLoader($this->getBasePath(), $_SERVER);
 376                         Core\Hook::callAll('load_config', $loader);
 377                 }
 378
 379                 $this->loadDefaultTimezone();
 380                 // Register template engines
 381                 Core\Renderer::registerTemplateEngine('Friendica\Render\FriendicaSmartyEngine');
 382         }
 383
 384         /**
 385          * Loads the default timezone
 386          *
 387          * Include support for legacy $default_timezone
 388          *
 389          * @global string $default_timezone
 390          */
 391         private function loadDefaultTimezone()
 392         {
 393                 if ($this->config->get('system', 'default_timezone')) {
 394                         $timezone = $this->config->get('system', 'default_timezone', 'UTC');
 395                 } else {
 396                         global $default_timezone;
 397                         $timezone = $default_timezone ?? '' ?: 'UTC';
 398                 }
 399
 400                 $this->setTimeZone($timezone);
 401         }
 402
 403         /**
 404          * Returns the current theme name. May be overriden by the mobile theme name.
 405          *
 406          * @return string
 407          * @throws Exception
 408          */
 409         public function getCurrentTheme()
 410         {
 411                 if ($this->mode->isInstall()) {
 412                         return '';
 413                 }
 414
 415                 // Specific mobile theme override
 416                 if (($this->mode->isMobile() || $this->mode->isTablet()) && Core\Session::get('show-mobile', true)) {
 417                         $user_mobile_theme = $this->getCurrentMobileTheme();
 418
 419                         // --- means same mobile theme as desktop
 420                         if (!empty($user_mobile_theme) && $user_mobile_theme !== '---') {
 421                                 return $user_mobile_theme;
 422                         }
 423                 }
 424
 425                 if (!$this->currentTheme) {
 426                         $this->computeCurrentTheme();
 427                 }
 428
 429                 return $this->currentTheme;
 430         }
 431
 432         /**
 433          * Returns the current mobile theme name.
 434          *
 435          * @return string
 436          * @throws Exception
 437          */
 438         public function getCurrentMobileTheme()
 439         {
 440                 if ($this->mode->isInstall()) {
 441                         return '';
 442                 }
 443
 444                 if (is_null($this->currentMobileTheme)) {
 445                         $this->computeCurrentMobileTheme();
 446                 }
 447
 448                 return $this->currentMobileTheme;
 449         }
 450
 451         public function setCurrentTheme($theme)
 452         {
 453                 $this->currentTheme = $theme;
 454         }
 455
 456         public function setCurrentMobileTheme($theme)
 457         {
 458                 $this->currentMobileTheme = $theme;
 459         }
 460
 461         /**
 462          * Computes the current theme name based on the node settings, the page owner settings and the user settings
 463          *
 464          * @throws Exception
 465          */
 466         private function computeCurrentTheme()
 467         {
 468                 $system_theme = $this->config->get('system', 'theme');
 469                 if (!$system_theme) {
 470                         throw new Exception($this->l10n->t('No system theme config value set.'));
 471                 }
 472
 473                 // Sane default
 474                 $this->setCurrentTheme($system_theme);
 475
 476                 $page_theme = null;
 477                 // Find the theme that belongs to the user whose stuff we are looking at
 478                 if (!empty($this->profile_owner) && ($this->profile_owner != local_user())) {
 479                         // Allow folks to override user themes and always use their own on their own site.
 480                         // This works only if the user is on the same server
 481                         $user = $this->database->selectFirst('user', ['theme'], ['uid' => $this->profile_owner]);
 482                         if ($this->database->isResult($user) && !$this->pConfig->get(local_user(), 'system', 'always_my_theme')) {
 483                                 $page_theme = $user['theme'];
 484                         }
 485                 }
 486
 487                 $theme_name = $page_theme ?: Core\Session::get('theme', $system_theme);
 488
 489                 $theme_name = Strings::sanitizeFilePathItem($theme_name);
 490                 if ($theme_name
 491                     && in_array($theme_name, Theme::getAllowedList())
 492                     && (file_exists('view/theme/' . $theme_name . '/style.css')
 493                         || file_exists('view/theme/' . $theme_name . '/style.php'))
 494                 ) {
 495                         $this->setCurrentTheme($theme_name);
 496                 }
 497         }
 498
 499         /**
 500          * Computes the current mobile theme name based on the node settings, the page owner settings and the user settings
 501          */
 502         private function computeCurrentMobileTheme()
 503         {
 504                 $system_mobile_theme = $this->config->get('system', 'mobile-theme', '');
 505
 506                 // Sane default
 507                 $this->setCurrentMobileTheme($system_mobile_theme);
 508
 509                 $page_mobile_theme = null;
 510                 // Find the theme that belongs to the user whose stuff we are looking at
 511                 if (!empty($this->profile_owner) && ($this->profile_owner != local_user())) {
 512                         // Allow folks to override user themes and always use their own on their own site.
 513                         // This works only if the user is on the same server
 514                         if (!$this->pConfig->get(local_user(), 'system', 'always_my_theme')) {
 515                                 $page_mobile_theme = $this->pConfig->get($this->profile_owner, 'system', 'mobile-theme');
 516                         }
 517                 }
 518
 519                 $mobile_theme_name = $page_mobile_theme ?: Core\Session::get('mobile-theme', $system_mobile_theme);
 520
 521                 $mobile_theme_name = Strings::sanitizeFilePathItem($mobile_theme_name);
 522                 if ($mobile_theme_name == '---'
 523                         ||
 524                         in_array($mobile_theme_name, Theme::getAllowedList())
 525                         && (file_exists('view/theme/' . $mobile_theme_name . '/style.css')
 526                                 || file_exists('view/theme/' . $mobile_theme_name . '/style.php'))
 527                 ) {
 528                         $this->setCurrentMobileTheme($mobile_theme_name);
 529                 }
 530         }
 531
 532         /**
 533          * Provide a sane default if nothing is chosen or the specified theme does not exist.
 534          *
 535          * @return string
 536          * @throws Exception
 537          */
 538         public function getCurrentThemeStylesheetPath()
 539         {
 540                 return Core\Theme::getStylesheetPath($this->getCurrentTheme());
 541         }
 542
 543         /**
 544          * Sets the base url for use in cmdline programs which don't have
 545          * $_SERVER variables
 546          */
 547         public function checkURL()
 548         {
 549                 $url = $this->config->get('system', 'url');
 550
 551                 // if the url isn't set or the stored url is radically different
 552                 // than the currently visited url, store the current value accordingly.
 553                 // "Radically different" ignores common variations such as http vs https
 554                 // and www.example.com vs example.com.
 555                 // We will only change the url to an ip address if there is no existing setting
 556
 557                 if (empty($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()))) {
 558                         $this->config->set('system', 'url', $this->baseURL->get());
 559                 }
 560         }
 561
 562         /**
 563          * Frontend App script
 564          *
 565          * The App object behaves like a container and a dispatcher at the same time, including a representation of the
 566          * request and a representation of the response.
 567          *
 568          * This probably should change to limit the size of this monster method.
 569          *
 570          * @param App\ModuleController        $module The determined module
 571          * @param App\Router                  $router
 572          * @param IManagePersonalConfigValues $pconfig
 573          * @param Authentication              $auth   The Authentication backend of the node
 574          * @param App\Page                    $page   The Friendica page printing container
 575          *
 576          * @throws HTTPException\InternalServerErrorException
 577          * @throws \ImagickException
 578          */
 579         public function runFrontend(App\ModuleController $module, App\Router $router, IManagePersonalConfigValues $pconfig, Authentication $auth, App\Page $page, Dice $dice, float $start_time)
 580         {
 581                 $this->profiler->set($start_time, 'start');
 582                 $this->profiler->set(microtime(true), 'classinit');
 583
 584                 $moduleName = $module->getName();
 585
 586                 try {
 587                         // Missing DB connection: ERROR
 588                         if ($this->mode->has(App\Mode::LOCALCONFIGPRESENT) && !$this->mode->has(App\Mode::DBAVAILABLE)) {
 589                                 throw new HTTPException\InternalServerErrorException('Apologies but the website is unavailable at the moment.');
 590                         }
 591
 592                         if (!$this->mode->isInstall()) {
 593                                 // Force SSL redirection
 594                                 if ($this->baseURL->checkRedirectHttps()) {
 595                                         System::externalRedirect($this->baseURL->get() . '/' . $this->args->getQueryString());
 596                                 }
 597
 598                                 Core\Hook::callAll('init_1');
 599                         }
 600
 601                         if ($this->mode->isNormal() && !$this->mode->isBackend()) {
 602                                 $requester = HTTPSignature::getSigner('', $_SERVER);
 603                                 if (!empty($requester)) {
 604                                         Profile::addVisitorCookieForHandle($requester);
 605                                 }
 606                         }
 607
 608                         // ZRL
 609                         if (!empty($_GET['zrl']) && $this->mode->isNormal() && !$this->mode->isBackend()) {
 610                                 if (!local_user()) {
 611                                         // Only continue when the given profile link seems valid
 612                                         // Valid profile links contain a path with "/profile/" and no query parameters
 613                                         if ((parse_url($_GET['zrl'], PHP_URL_QUERY) == "") &&
 614                                             strstr(parse_url($_GET['zrl'], PHP_URL_PATH), "/profile/")) {
 615                                                 if (Core\Session::get('visitor_home') != $_GET["zrl"]) {
 616                                                         Core\Session::set('my_url', $_GET['zrl']);
 617                                                         Core\Session::set('authenticated', 0);
 618
 619                                                         $remote_contact = Contact::getByURL($_GET['zrl'], false, ['subscribe']);
 620                                                         if (!empty($remote_contact['subscribe'])) {
 621                                                                 $_SESSION['remote_comment'] = $remote_contact['subscribe'];
 622                                                         }
 623                                                 }
 624
 625                                                 Model\Profile::zrlInit($this);
 626                                         } else {
 627                                                 // Someone came with an invalid parameter, maybe as a DDoS attempt
 628                                                 // We simply stop processing here
 629                                                 $this->logger->debug('Invalid ZRL parameter.', ['zrl' => $_GET['zrl']]);
 630                                                 throw new HTTPException\ForbiddenException();
 631                                         }
 632                                 }
 633                         }
 634
 635                         if (!empty($_GET['owt']) && $this->mode->isNormal()) {
 636                                 $token = $_GET['owt'];
 637                                 Model\Profile::openWebAuthInit($token);
 638                         }
 639
 640                         if (!$this->mode->isBackend()) {
 641                                 $auth->withSession($this);
 642                         }
 643
 644                         if (empty($_SESSION['authenticated'])) {
 645                                 header('X-Account-Management-Status: none');
 646                         }
 647
 648                         $_SESSION['sysmsg']       = Core\Session::get('sysmsg', []);
 649                         $_SESSION['sysmsg_info']  = Core\Session::get('sysmsg_info', []);
 650                         $_SESSION['last_updated'] = Core\Session::get('last_updated', []);
 651
 652                         /*
 653                          * check_config() is responsible for running update scripts. These automatically
 654                          * update the DB schema whenever we push a new one out. It also checks to see if
 655                          * any addons have been added or removed and reacts accordingly.
 656                          */
 657
 658                         // in install mode, any url loads install module
 659                         // but we need "view" module for stylesheet
 660                         if ($this->mode->isInstall() && $moduleName !== 'install') {
 661                                 $this->baseURL->redirect('install');
 662                         } else {
 663                                 $this->checkURL();
 664                                 Core\Update::check($this->getBasePath(), false, $this->mode);
 665                                 Core\Addon::loadAddons();
 666                                 Core\Hook::loadHooks();
 667                         }
 668
 669                         // Compatibility with the Android Diaspora client
 670                         if ($moduleName == 'stream') {
 671                                 $this->baseURL->redirect('network?order=post');
 672                         }
 673
 674                         if ($moduleName == 'conversations') {
 675                                 $this->baseURL->redirect('message');
 676                         }
 677
 678                         if ($moduleName == 'commented') {
 679                                 $this->baseURL->redirect('network?order=comment');
 680                         }
 681
 682                         if ($moduleName == 'liked') {
 683                                 $this->baseURL->redirect('network?order=comment');
 684                         }
 685
 686                         if ($moduleName == 'activity') {
 687                                 $this->baseURL->redirect('network?conv=1');
 688                         }
 689
 690                         if (($moduleName == 'status_messages') && ($this->args->getCommand() == 'status_messages/new')) {
 691                                 $this->baseURL->redirect('bookmarklet');
 692                         }
 693
 694                         if (($moduleName == 'user') && ($this->args->getCommand() == 'user/edit')) {
 695                                 $this->baseURL->redirect('settings');
 696                         }
 697
 698                         if (($moduleName == 'tag_followings') && ($this->args->getCommand() == 'tag_followings/manage')) {
 699                                 $this->baseURL->redirect('search');
 700                         }
 701
 702                         // Initialize module that can set the current theme in the init() method, either directly or via App->setProfileOwner
 703                         $page['page_title'] = $moduleName;
 704
 705                         if (!$this->mode->isInstall() && !$this->mode->has(App\Mode::MAINTENANCEDISABLED)) {
 706                                 $module = new ModuleController('maintenance', new Maintenance($this->l10n));
 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 = $module->determineClass($this->args, $router, $this->config, $dice);
 711                         }
 712
 713                         // Let the module run it's internal process (init, get, post, ...)
 714                         $module->run($this->l10n, $this->baseURL, $this->logger, $this->profiler, $_SERVER, $_POST);
 715                 } catch (HTTPException $e) {
 716                         (new ModuleHTTPException())->rawContent($e);
 717                 }
 718
 719                 $page->run($this, $this->baseURL, $this->mode, $module, $this->l10n, $this->profiler, $this->config, $pconfig);
 720         }
 721
 722         /**
 723          * Automatically redirects to relative or absolute URL
 724          * Should only be used if it isn't clear if the URL is either internal or external
 725          *
 726          * @param string $toUrl The target URL
 727          *
 728          * @throws HTTPException\InternalServerErrorException
 729          */
 730         public function redirect($toUrl)
 731         {
 732                 if (!empty(parse_url($toUrl, PHP_URL_SCHEME))) {
 733                         Core\System::externalRedirect($toUrl);
 734                 } else {
 735                         $this->baseURL->redirect($toUrl);
 736                 }
 737         }
 738 }