src/App.php

   1 <?php
   2 /**
   3  * @file src/App.php
   4  */
   5 namespace Friendica;
   6
   7 use Detection\MobileDetect;
   8 use Exception;
   9 use Friendica\App\Arguments;
  10 use Friendica\App\BaseURL;
  11 use Friendica\App\Page;
  12 use Friendica\Core\Config\Cache\ConfigCache;
  13 use Friendica\Core\Config\Configuration;
  14 use Friendica\Core\Config\PConfiguration;
  15 use Friendica\Core\L10n\L10n;
  16 use Friendica\Core\System;
  17 use Friendica\Core\Theme;
  18 use Friendica\Database\Database;
  19 use Friendica\Model\Profile;
  20 use Friendica\Module\Login;
  21 use Friendica\Module\Special\HTTPException as ModuleHTTPException;
  22 use Friendica\Network\HTTPException;
  23 use Friendica\Util\ConfigFileLoader;
  24 use Friendica\Util\HTTPSignature;
  25 use Friendica\Util\Profiler;
  26 use Friendica\Util\Strings;
  27 use Psr\Log\LoggerInterface;
  28
  29 /**
  30  *
  31  * class: App
  32  *
  33  * @brief Our main application structure for the life of this page.
  34  *
  35  * Primarily deals with the URL that got us here
  36  * and tries to make some sense of it, and
  37  * stores our page contents and config storage
  38  * and anything else that might need to be passed around
  39  * before we spit the page out.
  40  *
  41  */
  42 class App
  43 {
  44         /** @deprecated 2019.09 - use App\Arguments->getQueryString() */
  45         public $query_string;
  46         /**
  47          * @var Page The current page environment
  48          */
  49         public $page;
  50         public $profile;
  51         public $profile_uid;
  52         public $user;
  53         public $cid;
  54         public $contact;
  55         public $contacts;
  56         public $page_contact;
  57         public $content;
  58         public $data = [];
  59         /** @deprecated 2019.09 - use App\Arguments->getCommand() */
  60         public $cmd = '';
  61         /** @deprecated 2019.09 - use App\Arguments->getArgv() or Arguments->get() */
  62         public $argv;
  63         /** @deprecated 2019.09 - use App\Arguments->getArgc() */
  64         public $argc;
  65         /** @deprecated 2019.09 - Use App\Module->getName() instead */
  66         public $module;
  67         public $timezone;
  68         public $interactive = true;
  69         public $identities;
  70         public $is_mobile;
  71         public $is_tablet;
  72         public $theme_info  = [];
  73         public $category;
  74         // Allow themes to control internal parameters
  75         // by changing App values in theme.php
  76
  77         public $sourcename              = '';
  78         public $videowidth              = 425;
  79         public $videoheight             = 350;
  80         public $force_max_items         = 0;
  81         public $theme_events_in_profile = true;
  82         public $queue;
  83
  84         /**
  85          * @var App\Mode The Mode of the Application
  86          */
  87         private $mode;
  88
  89         /**
  90          * @var App\Router
  91          */
  92         private $router;
  93
  94         /**
  95          * @var BaseURL
  96          */
  97         private $baseURL;
  98
  99         /**
 100          * @var string The name of the current theme
 101          */
 102         private $currentTheme;
 103
 104         /**
 105          * @var bool check if request was an AJAX (xmlhttprequest) request
 106          */
 107         private $isAjax;
 108
 109         /**
 110          * @var MobileDetect
 111          */
 112         public $mobileDetect;
 113
 114         /**
 115          * @var Configuration The config
 116          */
 117         private $config;
 118
 119         /**
 120          * @var LoggerInterface The logger
 121          */
 122         private $logger;
 123
 124         /**
 125          * @var Profiler The profiler of this app
 126          */
 127         private $profiler;
 128
 129         /**
 130          * @var Database The Friendica database connection
 131          */
 132         private $database;
 133
 134         /**
 135          * @var L10n The translator
 136          */
 137         private $l10n;
 138
 139         /**
 140          * @var App\Arguments
 141          */
 142         private $args;
 143
 144         /**
 145          * Returns the current config cache of this node
 146          *
 147          * @return ConfigCache
 148          */
 149         public function getConfigCache()
 150         {
 151                 return $this->config->getCache();
 152         }
 153
 154         /**
 155          * Returns the current config of this node
 156          *
 157          * @return Configuration
 158          */
 159         public function getConfig()
 160         {
 161                 return $this->config;
 162         }
 163
 164         /**
 165          * The basepath of this app
 166          *
 167          * @return string
 168          */
 169         public function getBasePath()
 170         {
 171                 // Don't use the basepath of the config table for basepath (it should always be the config-file one)
 172                 return $this->config->getCache()->get('system', 'basepath');
 173         }
 174
 175         /**
 176          * The Logger of this app
 177          *
 178          * @return LoggerInterface
 179          */
 180         public function getLogger()
 181         {
 182                 return $this->logger;
 183         }
 184
 185         /**
 186          * The profiler of this app
 187          *
 188          * @return Profiler
 189          */
 190         public function getProfiler()
 191         {
 192                 return $this->profiler;
 193         }
 194
 195         /**
 196          * Returns the Mode of the Application
 197          *
 198          * @return App\Mode The Application Mode
 199          */
 200         public function getMode()
 201         {
 202                 return $this->mode;
 203         }
 204
 205         /**
 206          * Returns the Database of the Application
 207          *
 208          * @return Database
 209          */
 210         public function getDBA()
 211         {
 212                 return $this->database;
 213         }
 214
 215         /**
 216          * @deprecated 2019.09 - use Page->registerStylesheet instead
 217          * @see Page::registerStylesheet()
 218          */
 219         public function registerStylesheet($path)
 220         {
 221                 $this->page->registerStylesheet($path);
 222         }
 223
 224         /**
 225          * @deprecated 2019.09 - use Page->registerFooterScript instead
 226          * @see Page::registerFooterScript()
 227          */
 228         public function registerFooterScript($path)
 229         {
 230                 $this->page->registerFooterScript($path);
 231         }
 232
 233         /**
 234          * @param Database        $database     The Friendica Database
 235          * @param Configuration   $config       The Configuration
 236          * @param App\Mode        $mode         The mode of this Friendica app
 237          * @param App\Router      $router       The router of this Friendica app
 238          * @param BaseURL         $baseURL      The full base URL of this Friendica app
 239          * @param LoggerInterface $logger       The current app logger
 240          * @param Profiler        $profiler     The profiler of this application
 241          * @param L10n            $l10n         The translator instance
 242          * @param App\Arguments   $args         The Friendica Arguments of the call
 243          * @param MobileDetect    $mobileDetect A mobile detection class
 244          */
 245         public function __construct(Database $database, Configuration $config, App\Mode $mode, App\Router $router, BaseURL $baseURL, LoggerInterface $logger, Profiler $profiler, L10n $l10n, Arguments $args, App\Module $module, App\Page $page, MobileDetect $mobileDetect)
 246         {
 247                 $this->database     = $database;
 248                 $this->config       = $config;
 249                 $this->mode         = $mode;
 250                 $this->router       = $router;
 251                 $this->baseURL      = $baseURL;
 252                 $this->profiler     = $profiler;
 253                 $this->logger       = $logger;
 254                 $this->l10n         = $l10n;
 255                 $this->args         = $args;
 256                 $this->mobileDetect = $mobileDetect;
 257
 258                 $this->cmd          = $args->getCommand();
 259                 $this->argv         = $args->getArgv();
 260                 $this->argc         = $args->getArgc();
 261                 $this->query_string = $args->getQueryString();
 262                 $this->module       = $module->getName();
 263                 $this->page         = $page;
 264
 265                 $this->is_mobile = $mobileDetect->isMobile();
 266                 $this->is_tablet = $mobileDetect->isTablet();
 267
 268                 $this->isAjax = strtolower(defaults($_SERVER, 'HTTP_X_REQUESTED_WITH', '')) == 'xmlhttprequest';
 269
 270                 $this->load();
 271         }
 272
 273         /**
 274          * Load the whole app instance
 275          */
 276         public function load()
 277         {
 278                 set_time_limit(0);
 279
 280                 // This has to be quite large to deal with embedded private photos
 281                 ini_set('pcre.backtrack_limit', 500000);
 282
 283                 set_include_path(
 284                         get_include_path() . PATH_SEPARATOR
 285                         . $this->getBasePath() . DIRECTORY_SEPARATOR . 'include' . PATH_SEPARATOR
 286                         . $this->getBasePath() . DIRECTORY_SEPARATOR . 'library' . PATH_SEPARATOR
 287                         . $this->getBasePath());
 288
 289                 $this->profiler->reset();
 290
 291                 if ($this->mode->has(App\Mode::DBAVAILABLE)) {
 292                         $this->profiler->update($this->config);
 293
 294                         Core\Hook::loadHooks();
 295                         $loader = new ConfigFileLoader($this->getBasePath());
 296                         Core\Hook::callAll('load_config', $loader);
 297                 }
 298
 299                 $this->loadDefaultTimezone();
 300                 // Register template engines
 301                 Core\Renderer::registerTemplateEngine('Friendica\Render\FriendicaSmartyEngine');
 302         }
 303
 304         /**
 305          * Loads the default timezone
 306          *
 307          * Include support for legacy $default_timezone
 308          *
 309          * @global string $default_timezone
 310          */
 311         private function loadDefaultTimezone()
 312         {
 313                 if ($this->config->get('system', 'default_timezone')) {
 314                         $this->timezone = $this->config->get('system', 'default_timezone');
 315                 } else {
 316                         global $default_timezone;
 317                         $this->timezone = !empty($default_timezone) ? $default_timezone : 'UTC';
 318                 }
 319
 320                 if ($this->timezone) {
 321                         date_default_timezone_set($this->timezone);
 322                 }
 323         }
 324
 325         /**
 326          * Returns the scheme of the current call
 327          *
 328          * @return string
 329          *
 330          * @deprecated 2019.06 - use BaseURL->getScheme() instead
 331          */
 332         public function getScheme()
 333         {
 334                 return $this->baseURL->getScheme();
 335         }
 336
 337         /**
 338          * Retrieves the Friendica instance base URL
 339          *
 340          * @param bool $ssl Whether to append http or https under BaseURL::SSL_POLICY_SELFSIGN
 341          *
 342          * @return string Friendica server base URL
 343          *
 344          * @deprecated 2019.09 - use BaseUrl->get($ssl) instead
 345          */
 346         public function getBaseURL($ssl = false)
 347         {
 348                 return $this->baseURL->get($ssl);
 349         }
 350
 351         /**
 352          * @brief      Initializes the baseurl components
 353          *
 354          * Clears the baseurl cache to prevent inconsistencies
 355          *
 356          * @param string $url
 357          *
 358          * @deprecated 2019.06 - use BaseURL->saveByURL($url) instead
 359          */
 360         public function setBaseURL($url)
 361         {
 362                 $this->baseURL->saveByURL($url);
 363         }
 364
 365         /**
 366          * Returns the current hostname
 367          *
 368          * @return string
 369          *
 370          * @deprecated 2019.06 - use BaseURL->getHostname() instead
 371          */
 372         public function getHostName()
 373         {
 374                 return $this->baseURL->getHostname();
 375         }
 376
 377         /**
 378          * Returns the sub-path of the full URL
 379          *
 380          * @return string
 381          *
 382          * @deprecated 2019.06 - use BaseURL->getUrlPath() instead
 383          */
 384         public function getURLPath()
 385         {
 386                 return $this->baseURL->getUrlPath();
 387         }
 388
 389         /**
 390          * @brief      Removes the base url from an url. This avoids some mixed content problems.
 391          *
 392          * @param string $origURL
 393          *
 394          * @return string The cleaned url
 395          *
 396          * @deprecated 2019.09 - Use BaseURL->remove() instead
 397          * @see        BaseURL::remove()
 398          */
 399         public function removeBaseURL($origURL)
 400         {
 401                 return $this->baseURL->remove($origURL);
 402         }
 403
 404         /**
 405          * Returns the current UserAgent as a String
 406          *
 407          * @return string the UserAgent as a String
 408          * @throws HTTPException\InternalServerErrorException
 409          */
 410         public function getUserAgent()
 411         {
 412                 return
 413                         FRIENDICA_PLATFORM . " '" .
 414                         FRIENDICA_CODENAME . "' " .
 415                         FRIENDICA_VERSION . '-' .
 416                         DB_UPDATE_VERSION . '; ' .
 417                         $this->getBaseURL();
 418         }
 419
 420         /**
 421          * Returns true, if the call is from a backend node (f.e. from a worker)
 422          *
 423          * @return bool Is it a known backend?
 424          *
 425          * @deprecated 2019.09 - use App\Mode->isBackend() instead
 426          * @see        App\Mode::isBackend()
 427          * Use BaseObject::getClass(App\Mode::class) to get the global instance of Mode
 428          */
 429         public function isBackend()
 430         {
 431                 return $this->mode->isBackend();
 432         }
 433
 434         /**
 435          * @brief Checks if the maximum number of database processes is reached
 436          *
 437          * @return bool Is the limit reached?
 438          */
 439         public function isMaxProcessesReached()
 440         {
 441                 // Deactivated, needs more investigating if this check really makes sense
 442                 return false;
 443
 444                 /*
 445                  * Commented out to suppress static analyzer issues
 446                  *
 447                 if ($this->is_backend()) {
 448                         $process = 'backend';
 449                         $max_processes = $this->config->get('system', 'max_processes_backend');
 450                         if (intval($max_processes) == 0) {
 451                                 $max_processes = 5;
 452                         }
 453                 } else {
 454                         $process = 'frontend';
 455                         $max_processes = $this->config->get('system', 'max_processes_frontend');
 456                         if (intval($max_processes) == 0) {
 457                                 $max_processes = 20;
 458                         }
 459                 }
 460
 461                 $processlist = DBA::processlist();
 462                 if ($processlist['list'] != '') {
 463                         $this->logger->debug('Processcheck: Processes: ' . $processlist['amount'] . ' - Processlist: ' . $processlist['list']);
 464
 465                         if ($processlist['amount'] > $max_processes) {
 466                                 $this->logger->debug('Processcheck: Maximum number of processes for ' . $process . ' tasks (' . $max_processes . ') reached.');
 467                                 return true;
 468                         }
 469                 }
 470                 return false;
 471                  */
 472         }
 473
 474         /**
 475          * @brief Checks if the minimal memory is reached
 476          *
 477          * @return bool Is the memory limit reached?
 478          * @throws HTTPException\InternalServerErrorException
 479          */
 480         public function isMinMemoryReached()
 481         {
 482                 $min_memory = $this->config->get('system', 'min_memory', 0);
 483                 if ($min_memory == 0) {
 484                         return false;
 485                 }
 486
 487                 if (!is_readable('/proc/meminfo')) {
 488                         return false;
 489                 }
 490
 491                 $memdata = explode("\n", file_get_contents('/proc/meminfo'));
 492
 493                 $meminfo = [];
 494                 foreach ($memdata as $line) {
 495                         $data = explode(':', $line);
 496                         if (count($data) != 2) {
 497                                 continue;
 498                         }
 499                         list($key, $val) = $data;
 500                         $meminfo[$key] = (int)trim(str_replace('kB', '', $val));
 501                         $meminfo[$key] = (int)($meminfo[$key] / 1024);
 502                 }
 503
 504                 if (!isset($meminfo['MemFree'])) {
 505                         return false;
 506                 }
 507
 508                 $free = $meminfo['MemFree'];
 509
 510                 $reached = ($free < $min_memory);
 511
 512                 if ($reached) {
 513                         $this->logger->debug('Minimal memory reached.', ['free' => $free, 'memtotal' => $meminfo['MemTotal'], 'limit' => $min_memory]);
 514                 }
 515
 516                 return $reached;
 517         }
 518
 519         /**
 520          * @brief Checks if the maximum load is reached
 521          *
 522          * @return bool Is the load reached?
 523          * @throws HTTPException\InternalServerErrorException
 524          */
 525         public function isMaxLoadReached()
 526         {
 527                 if ($this->mode->isBackend()) {
 528                         $process    = 'backend';
 529                         $maxsysload = intval($this->config->get('system', 'maxloadavg'));
 530                         if ($maxsysload < 1) {
 531                                 $maxsysload = 50;
 532                         }
 533                 } else {
 534                         $process    = 'frontend';
 535                         $maxsysload = intval($this->config->get('system', 'maxloadavg_frontend'));
 536                         if ($maxsysload < 1) {
 537                                 $maxsysload = 50;
 538                         }
 539                 }
 540
 541                 $load = Core\System::currentLoad();
 542                 if ($load) {
 543                         if (intval($load) > $maxsysload) {
 544                                 $this->logger->info('system load for process too high.', ['load' => $load, 'process' => $process, 'maxsysload' => $maxsysload]);
 545                                 return true;
 546                         }
 547                 }
 548                 return false;
 549         }
 550
 551         /**
 552          * Executes a child process with 'proc_open'
 553          *
 554          * @param string $command The command to execute
 555          * @param array  $args    Arguments to pass to the command ( [ 'key' => value, 'key2' => value2, ... ]
 556          *
 557          * @throws HTTPException\InternalServerErrorException
 558          */
 559         public function proc_run($command, $args)
 560         {
 561                 if (!function_exists('proc_open')) {
 562                         return;
 563                 }
 564
 565                 $cmdline = $this->config->get('config', 'php_path', 'php') . ' ' . escapeshellarg($command);
 566
 567                 foreach ($args as $key => $value) {
 568                         if (!is_null($value) && is_bool($value) && !$value) {
 569                                 continue;
 570                         }
 571
 572                         $cmdline .= ' --' . $key;
 573                         if (!is_null($value) && !is_bool($value)) {
 574                                 $cmdline .= ' ' . $value;
 575                         }
 576                 }
 577
 578                 if ($this->isMinMemoryReached()) {
 579                         return;
 580                 }
 581
 582                 if (strtoupper(substr(PHP_OS, 0, 3)) === 'WIN') {
 583                         $resource = proc_open('cmd /c start /b ' . $cmdline, [], $foo, $this->getBasePath());
 584                 } else {
 585                         $resource = proc_open($cmdline . ' &', [], $foo, $this->getBasePath());
 586                 }
 587                 if (!is_resource($resource)) {
 588                         $this->logger->debug('We got no resource for command.', ['cmd' => $cmdline]);
 589                         return;
 590                 }
 591                 proc_close($resource);
 592         }
 593
 594         /**
 595          * Generates the site's default sender email address
 596          *
 597          * @return string
 598          * @throws HTTPException\InternalServerErrorException
 599          */
 600         public function getSenderEmailAddress()
 601         {
 602                 $sender_email = $this->config->get('config', 'sender_email');
 603                 if (empty($sender_email)) {
 604                         $hostname = $this->baseURL->getHostname();
 605                         if (strpos($hostname, ':')) {
 606                                 $hostname = substr($hostname, 0, strpos($hostname, ':'));
 607                         }
 608
 609                         $sender_email = 'noreply@' . $hostname;
 610                 }
 611
 612                 return $sender_email;
 613         }
 614
 615         /**
 616          * Returns the current theme name.
 617          *
 618          * @return string the name of the current theme
 619          * @throws HTTPException\InternalServerErrorException
 620          */
 621         public function getCurrentTheme()
 622         {
 623                 if ($this->mode->isInstall()) {
 624                         return '';
 625                 }
 626
 627                 if (!$this->currentTheme) {
 628                         $this->computeCurrentTheme();
 629                 }
 630
 631                 return $this->currentTheme;
 632         }
 633
 634         public function setCurrentTheme($theme)
 635         {
 636                 $this->currentTheme = $theme;
 637         }
 638
 639         /**
 640          * Computes the current theme name based on the node settings, the user settings and the device type
 641          *
 642          * @throws Exception
 643          */
 644         private function computeCurrentTheme()
 645         {
 646                 $system_theme = $this->config->get('system', 'theme');
 647                 if (!$system_theme) {
 648                         throw new Exception($this->l10n->t('No system theme config value set.'));
 649                 }
 650
 651                 // Sane default
 652                 $this->currentTheme = $system_theme;
 653
 654                 $page_theme = null;
 655                 // Find the theme that belongs to the user whose stuff we are looking at
 656                 if ($this->profile_uid && ($this->profile_uid != local_user())) {
 657                         // Allow folks to override user themes and always use their own on their own site.
 658                         // This works only if the user is on the same server
 659                         $user = $this->database->selectFirst('user', ['theme'], ['uid' => $this->profile_uid]);
 660                         if ($this->database->isResult($user) && !Core\PConfig::get(local_user(), 'system', 'always_my_theme')) {
 661                                 $page_theme = $user['theme'];
 662                         }
 663                 }
 664
 665                 $user_theme = Core\Session::get('theme', $system_theme);
 666
 667                 // Specific mobile theme override
 668                 if (($this->is_mobile || $this->is_tablet) && Core\Session::get('show-mobile', true)) {
 669                         $system_mobile_theme = $this->config->get('system', 'mobile-theme');
 670                         $user_mobile_theme   = Core\Session::get('mobile-theme', $system_mobile_theme);
 671
 672                         // --- means same mobile theme as desktop
 673                         if (!empty($user_mobile_theme) && $user_mobile_theme !== '---') {
 674                                 $user_theme = $user_mobile_theme;
 675                         }
 676                 }
 677
 678                 if ($page_theme) {
 679                         $theme_name = $page_theme;
 680                 } else {
 681                         $theme_name = $user_theme;
 682                 }
 683
 684                 $theme_name = Strings::sanitizeFilePathItem($theme_name);
 685                 if ($theme_name
 686                     && in_array($theme_name, Theme::getAllowedList())
 687                     && (file_exists('view/theme/' . $theme_name . '/style.css')
 688                         || file_exists('view/theme/' . $theme_name . '/style.php'))
 689                 ) {
 690                         $this->currentTheme = $theme_name;
 691                 }
 692         }
 693
 694         /**
 695          * @brief Return full URL to theme which is currently in effect.
 696          *
 697          * Provide a sane default if nothing is chosen or the specified theme does not exist.
 698          *
 699          * @return string
 700          * @throws HTTPException\InternalServerErrorException
 701          */
 702         public function getCurrentThemeStylesheetPath()
 703         {
 704                 return Core\Theme::getStylesheetPath($this->getCurrentTheme());
 705         }
 706
 707         /**
 708          * Check if request was an AJAX (xmlhttprequest) request.
 709          *
 710          * @return boolean true if it was an AJAX request
 711          */
 712         public function isAjax()
 713         {
 714                 return $this->isAjax;
 715         }
 716
 717         /**
 718          * @deprecated use Arguments->get() instead
 719          *
 720          * @see        App\Arguments
 721          */
 722         public function getArgumentValue($position, $default = '')
 723         {
 724                 return $this->args->get($position, $default);
 725         }
 726
 727         /**
 728          * Sets the base url for use in cmdline programs which don't have
 729          * $_SERVER variables
 730          */
 731         public function checkURL()
 732         {
 733                 $url = $this->config->get('system', 'url');
 734
 735                 // if the url isn't set or the stored url is radically different
 736                 // than the currently visited url, store the current value accordingly.
 737                 // "Radically different" ignores common variations such as http vs https
 738                 // and www.example.com vs example.com.
 739                 // We will only change the url to an ip address if there is no existing setting
 740
 741                 if (empty($url) || (!Util\Strings::compareLink($url, $this->getBaseURL())) && (!preg_match("/^(\d{1,3})\.(\d{1,3})\.(\d{1,3})\.(\d{1,3})$/", $this->baseURL->getHostname()))) {
 742                         $this->config->set('system', 'url', $this->getBaseURL());
 743                 }
 744         }
 745
 746         /**
 747          * Frontend App script
 748          *
 749          * The App object behaves like a container and a dispatcher at the same time, including a representation of the
 750          * request and a representation of the response.
 751          *
 752          * This probably should change to limit the size of this monster method.
 753          *
 754          * @param App\Module $module The determined module
 755          */
 756         public function runFrontend(App\Module $module, App\Router $router, PConfiguration $pconfig)
 757         {
 758                 $moduleName = $module->getName();
 759
 760                 try {
 761                         // Missing DB connection: ERROR
 762                         if ($this->mode->has(App\Mode::LOCALCONFIGPRESENT) && !$this->mode->has(App\Mode::DBAVAILABLE)) {
 763                                 throw new HTTPException\InternalServerErrorException('Apologies but the website is unavailable at the moment.');
 764                         }
 765
 766                         // Max Load Average reached: ERROR
 767                         if ($this->isMaxProcessesReached() || $this->isMaxLoadReached()) {
 768                                 header('Retry-After: 120');
 769                                 header('Refresh: 120; url=' . $this->baseURL->get() . "/" . $this->args->getQueryString());
 770
 771                                 throw new HTTPException\ServiceUnavailableException('The node is currently overloaded. Please try again later.');
 772                         }
 773
 774                         if (!$this->mode->isInstall()) {
 775                                 // Force SSL redirection
 776                                 if ($this->baseURL->checkRedirectHttps()) {
 777                                         System::externalRedirect($this->baseURL->get() . '/' . $this->args->getQueryString());
 778                                 }
 779
 780                                 Core\Session::init();
 781                                 Core\Hook::callAll('init_1');
 782                         }
 783
 784                         // Exclude the backend processes from the session management
 785                         if (!$this->mode->isBackend()) {
 786                                 $stamp1 = microtime(true);
 787                                 session_start();
 788                                 $this->profiler->saveTimestamp($stamp1, 'parser', Core\System::callstack());
 789                                 $this->l10n->setSessionVariable();
 790                                 $this->l10n->setLangFromSession();
 791                         } else {
 792                                 $_SESSION = [];
 793                                 Core\Worker::executeIfIdle();
 794                         }
 795
 796                         if ($this->mode->isNormal()) {
 797                                 $requester = HTTPSignature::getSigner('', $_SERVER);
 798                                 if (!empty($requester)) {
 799                                         Profile::addVisitorCookieForHandle($requester);
 800                                 }
 801                         }
 802
 803                         // ZRL
 804                         if (!empty($_GET['zrl']) && $this->mode->isNormal()) {
 805                                 if (!local_user()) {
 806                                         // Only continue when the given profile link seems valid
 807                                         // Valid profile links contain a path with "/profile/" and no query parameters
 808                                         if ((parse_url($_GET['zrl'], PHP_URL_QUERY) == "") &&
 809                                             strstr(parse_url($_GET['zrl'], PHP_URL_PATH), "/profile/")) {
 810                                                 if (Core\Session::get('visitor_home') != $_GET["zrl"]) {
 811                                                         Core\Session::set('my_url', $_GET['zrl']);
 812                                                         Core\Session::set('authenticated', 0);
 813                                                 }
 814
 815                                                 Model\Profile::zrlInit($this);
 816                                         } else {
 817                                                 // Someone came with an invalid parameter, maybe as a DDoS attempt
 818                                                 // We simply stop processing here
 819                                                 $this->logger->debug('Invalid ZRL parameter.', ['zrl' => $_GET['zrl']]);
 820                                                 throw new HTTPException\ForbiddenException();
 821                                         }
 822                                 }
 823                         }
 824
 825                         if (!empty($_GET['owt']) && $this->mode->isNormal()) {
 826                                 $token = $_GET['owt'];
 827                                 Model\Profile::openWebAuthInit($token);
 828                         }
 829
 830                         Login::sessionAuth();
 831
 832                         if (empty($_SESSION['authenticated'])) {
 833                                 header('X-Account-Management-Status: none');
 834                         }
 835
 836                         $_SESSION['sysmsg']       = Core\Session::get('sysmsg', []);
 837                         $_SESSION['sysmsg_info']  = Core\Session::get('sysmsg_info', []);
 838                         $_SESSION['last_updated'] = Core\Session::get('last_updated', []);
 839
 840                         /*
 841                          * check_config() is responsible for running update scripts. These automatically
 842                          * update the DB schema whenever we push a new one out. It also checks to see if
 843                          * any addons have been added or removed and reacts accordingly.
 844                          */
 845
 846                         // in install mode, any url loads install module
 847                         // but we need "view" module for stylesheet
 848                         if ($this->mode->isInstall() && $moduleName !== 'install') {
 849                                 $this->internalRedirect('install');
 850                         } elseif (!$this->mode->isInstall() && !$this->mode->has(App\Mode::MAINTENANCEDISABLED) && $moduleName !== 'maintenance') {
 851                                 $this->internalRedirect('maintenance');
 852                         } else {
 853                                 $this->checkURL();
 854                                 Core\Update::check($this->getBasePath(), false, $this->mode);
 855                                 Core\Addon::loadAddons();
 856                                 Core\Hook::loadHooks();
 857                         }
 858
 859                         // Compatibility with the Android Diaspora client
 860                         if ($moduleName == 'stream') {
 861                                 $this->internalRedirect('network?order=post');
 862                         }
 863
 864                         if ($moduleName == 'conversations') {
 865                                 $this->internalRedirect('message');
 866                         }
 867
 868                         if ($moduleName == 'commented') {
 869                                 $this->internalRedirect('network?order=comment');
 870                         }
 871
 872                         if ($moduleName == 'liked') {
 873                                 $this->internalRedirect('network?order=comment');
 874                         }
 875
 876                         if ($moduleName == 'activity') {
 877                                 $this->internalRedirect('network?conv=1');
 878                         }
 879
 880                         if (($moduleName == 'status_messages') && ($this->args->getCommand() == 'status_messages/new')) {
 881                                 $this->internalRedirect('bookmarklet');
 882                         }
 883
 884                         if (($moduleName == 'user') && ($this->args->getCommand() == 'user/edit')) {
 885                                 $this->internalRedirect('settings');
 886                         }
 887
 888                         if (($moduleName == 'tag_followings') && ($this->args->getCommand() == 'tag_followings/manage')) {
 889                                 $this->internalRedirect('search');
 890                         }
 891
 892                         // Initialize module that can set the current theme in the init() method, either directly or via App->profile_uid
 893                         $this->page['page_title'] = $moduleName;
 894
 895                         // determine the module class and save it to the module instance
 896                         // @todo there's an implicit dependency due SESSION::start(), so it has to be called here (yet)
 897                         $module = $module->determineClass($this->args, $router, $this->config);
 898
 899                         // Let the module run it's internal process (init, get, post, ...)
 900                         $module->run($this->l10n, $this, $this->logger, $this->getCurrentTheme(), $_SERVER, $_POST);
 901
 902                 } catch (HTTPException $e) {
 903                         ModuleHTTPException::rawContent($e);
 904                 }
 905
 906                 $this->page->run($this, $this->baseURL, $this->mode, $module, $this->l10n, $this->config, $pconfig);
 907         }
 908
 909         /**
 910          * Redirects to another module relative to the current Friendica base.
 911          * If you want to redirect to a external URL, use System::externalRedirectTo()
 912          *
 913          * @param string $toUrl The destination URL (Default is empty, which is the default page of the Friendica node)
 914          * @param bool   $ssl   if true, base URL will try to get called with https:// (works just for relative paths)
 915          *
 916          * @throws HTTPException\InternalServerErrorException In Case the given URL is not relative to the Friendica node
 917          */
 918         public function internalRedirect($toUrl = '', $ssl = false)
 919         {
 920                 if (!empty(parse_url($toUrl, PHP_URL_SCHEME))) {
 921                         throw new HTTPException\InternalServerErrorException("'$toUrl is not a relative path, please use System::externalRedirectTo");
 922                 }
 923
 924                 $redirectTo = $this->baseURL->get($ssl) . '/' . ltrim($toUrl, '/');
 925                 Core\System::externalRedirect($redirectTo);
 926         }
 927
 928         /**
 929          * Automatically redirects to relative or absolute URL
 930          * Should only be used if it isn't clear if the URL is either internal or external
 931          *
 932          * @param string $toUrl The target URL
 933          *
 934          * @throws HTTPException\InternalServerErrorException
 935          */
 936         public function redirect($toUrl)
 937         {
 938                 if (!empty(parse_url($toUrl, PHP_URL_SCHEME))) {
 939                         Core\System::externalRedirect($toUrl);
 940                 } else {
 941                         $this->internalRedirect($toUrl);
 942                 }
 943         }
 944 }