7 use Detection\MobileDetect;
11 use Friendica\Database\DBA;
12 use Friendica\Network\HTTPException\InternalServerErrorException;
13 use Psr\Log\LoggerInterface;
19 * @brief Our main application structure for the life of this page.
21 * Primarily deals with the URL that got us here
22 * and tries to make some sense of it, and
23 * stores our page contents and config storage
24 * and anything else that might need to be passed around
25 * before we spit the page out.
30 public $module_loaded = false;
31 public $module_class = null;
32 public $query_string = '';
43 public $error = false;
49 public $interactive = true;
51 public $is_mobile = false;
52 public $is_tablet = false;
53 public $performance = [];
54 public $callstack = [];
55 public $theme_info = [];
57 // Allow themes to control internal parameters
58 // by changing App values in theme.php
60 public $sourcename = '';
61 public $videowidth = 425;
62 public $videoheight = 350;
63 public $force_max_items = 0;
64 public $theme_events_in_profile = true;
66 public $stylesheets = [];
67 public $footerScripts = [];
70 * @var App\Mode The Mode of the Application
75 * @var string The App base path
80 * @var string The App URL path
85 * @var bool true, if the call is from the Friendica APP, otherwise false
87 private $isFriendicaApp;
90 * @var bool true, if the call is from an backend node (f.e. worker)
95 * @var string The name of the current theme
97 private $currentTheme;
100 * @var bool check if request was an AJAX (xmlhttprequest) request
107 public $mobileDetect;
110 * @var LoggerInterface The current logger of this App
115 * Register a stylesheet file path to be included in the <head> tag of every page.
116 * Inclusion is done in App->initHead().
117 * The path can be absolute or relative to the Friendica installation base folder.
121 * @param string $path
122 * @throws InternalServerErrorException
124 public function registerStylesheet($path)
126 $url = str_replace($this->getBasePath() . DIRECTORY_SEPARATOR, '', $path);
128 $this->stylesheets[] = trim($url, '/');
132 * Register a javascript file path to be included in the <footer> tag of every page.
133 * Inclusion is done in App->initFooter().
134 * The path can be absolute or relative to the Friendica installation base folder.
138 * @param string $path
139 * @throws InternalServerErrorException
141 public function registerFooterScript($path)
143 $url = str_replace($this->getBasePath() . DIRECTORY_SEPARATOR, '', $path);
145 $this->footerScripts[] = trim($url, '/');
154 * @brief App constructor.
156 * @param string $basePath Path to the app base folder
157 * @param LoggerInterface $logger Logger of this application
158 * @param bool $isBackend Whether it is used for backend or frontend (Default true=backend)
160 * @throws Exception if the Basepath is not usable
162 public function __construct($basePath, LoggerInterface $logger, $isBackend = true)
164 $this->logger = $logger;
166 if (!static::isDirectoryUsable($basePath, false)) {
167 throw new Exception('Basepath ' . $basePath . ' isn\'t usable.');
170 BaseObject::setApp($this);
172 $this->basePath = rtrim($basePath, DIRECTORY_SEPARATOR);
173 $this->checkBackend($isBackend);
174 $this->checkFriendicaApp();
176 $this->performance['start'] = microtime(true);
177 $this->performance['database'] = 0;
178 $this->performance['database_write'] = 0;
179 $this->performance['cache'] = 0;
180 $this->performance['cache_write'] = 0;
181 $this->performance['network'] = 0;
182 $this->performance['file'] = 0;
183 $this->performance['rendering'] = 0;
184 $this->performance['parser'] = 0;
185 $this->performance['marktime'] = 0;
186 $this->performance['markstart'] = microtime(true);
188 $this->callstack['database'] = [];
189 $this->callstack['database_write'] = [];
190 $this->callstack['cache'] = [];
191 $this->callstack['cache_write'] = [];
192 $this->callstack['network'] = [];
193 $this->callstack['file'] = [];
194 $this->callstack['rendering'] = [];
195 $this->callstack['parser'] = [];
197 $this->mode = new App\Mode($basePath);
203 // This has to be quite large to deal with embedded private photos
204 ini_set('pcre.backtrack_limit', 500000);
206 $this->scheme = 'http';
208 if (!empty($_SERVER['HTTPS']) ||
209 !empty($_SERVER['HTTP_FORWARDED']) && preg_match('/proto=https/', $_SERVER['HTTP_FORWARDED']) ||
210 !empty($_SERVER['HTTP_X_FORWARDED_PROTO']) && $_SERVER['HTTP_X_FORWARDED_PROTO'] == 'https' ||
211 !empty($_SERVER['HTTP_X_FORWARDED_SSL']) && $_SERVER['HTTP_X_FORWARDED_SSL'] == 'on' ||
212 !empty($_SERVER['FRONT_END_HTTPS']) && $_SERVER['FRONT_END_HTTPS'] == 'on' ||
213 !empty($_SERVER['SERVER_PORT']) && (intval($_SERVER['SERVER_PORT']) == 443) // XXX: reasonable assumption, but isn't this hardcoding too much?
215 $this->scheme = 'https';
218 if (!empty($_SERVER['SERVER_NAME'])) {
219 $this->hostname = $_SERVER['SERVER_NAME'];
221 if (!empty($_SERVER['SERVER_PORT']) && $_SERVER['SERVER_PORT'] != 80 && $_SERVER['SERVER_PORT'] != 443) {
222 $this->hostname .= ':' . $_SERVER['SERVER_PORT'];
227 get_include_path() . PATH_SEPARATOR
228 . $this->getBasePath() . DIRECTORY_SEPARATOR . 'include' . PATH_SEPARATOR
229 . $this->getBasePath() . DIRECTORY_SEPARATOR . 'library' . PATH_SEPARATOR
230 . $this->getBasePath());
232 if (!empty($_SERVER['QUERY_STRING']) && strpos($_SERVER['QUERY_STRING'], 'pagename=') === 0) {
233 $this->query_string = substr($_SERVER['QUERY_STRING'], 9);
234 } elseif (!empty($_SERVER['QUERY_STRING']) && strpos($_SERVER['QUERY_STRING'], 'q=') === 0) {
235 $this->query_string = substr($_SERVER['QUERY_STRING'], 2);
238 // removing trailing / - maybe a nginx problem
239 $this->query_string = ltrim($this->query_string, '/');
241 if (!empty($_GET['pagename'])) {
242 $this->cmd = trim($_GET['pagename'], '/\\');
243 } elseif (!empty($_GET['q'])) {
244 $this->cmd = trim($_GET['q'], '/\\');
248 $this->query_string = str_replace($this->cmd . '&', $this->cmd . '?', $this->query_string);
250 // unix style "homedir"
251 if (substr($this->cmd, 0, 1) === '~') {
252 $this->cmd = 'profile/' . substr($this->cmd, 1);
255 // Diaspora style profile url
256 if (substr($this->cmd, 0, 2) === 'u/') {
257 $this->cmd = 'profile/' . substr($this->cmd, 2);
261 * Break the URL path into C style argc/argv style arguments for our
262 * modules. Given "http://example.com/module/arg1/arg2", $this->argc
263 * will be 3 (integer) and $this->argv will contain:
269 * There will always be one argument. If provided a naked domain
270 * URL, $this->argv[0] is set to "home".
273 $this->argv = explode('/', $this->cmd);
274 $this->argc = count($this->argv);
275 if ((array_key_exists('0', $this->argv)) && strlen($this->argv[0])) {
276 $this->module = str_replace('.', '_', $this->argv[0]);
277 $this->module = str_replace('-', '_', $this->module);
280 $this->argv = ['home'];
281 $this->module = 'home';
284 // Detect mobile devices
285 $mobile_detect = new MobileDetect();
287 $this->mobileDetect = $mobile_detect;
289 $this->is_mobile = $mobile_detect->isMobile();
290 $this->is_tablet = $mobile_detect->isTablet();
292 $this->isAjax = strtolower(defaults($_SERVER, 'HTTP_X_REQUESTED_WITH', '')) == 'xmlhttprequest';
294 // Register template engines
295 Core\Renderer::registerTemplateEngine('Friendica\Render\FriendicaSmartyEngine');
299 * Returns the Mode of the Application
301 * @return App\Mode The Application Mode
303 * @throws InternalServerErrorException when the mode isn't created
305 public function getMode()
307 if (empty($this->mode)) {
308 throw new InternalServerErrorException('Mode of the Application is not defined');
315 * Returns the Logger of the Application
317 * @return LoggerInterface The Logger
318 * @throws InternalServerErrorException when the logger isn't created
320 public function getLogger()
322 if (empty($this->logger)) {
323 throw new InternalServerErrorException('Logger of the Application is not defined');
326 return $this->logger;
330 * Reloads the whole app instance
332 public function reload()
334 // The order of the following calls is important to ensure proper initialization
335 $this->loadConfigFiles();
337 $this->loadDatabase();
339 $this->getMode()->determine($this->getBasePath());
341 $this->determineURLPath();
345 if ($this->getMode()->has(App\Mode::DBAVAILABLE)) {
346 Core\Hook::loadHooks();
348 $this->loadAddonConfig();
351 $this->loadDefaultTimezone();
355 $this->process_id = Core\System::processID('log');
357 Core\Logger::setLogger($this->logger);
361 * Load the configuration files
363 * First loads the default value for all the configuration keys, then the legacy configuration files, then the
364 * expected local.config.php
366 private function loadConfigFiles()
368 $this->loadConfigFile($this->getBasePath() . '/config/defaults.config.php');
369 $this->loadConfigFile($this->getBasePath() . '/config/settings.config.php');
371 // Legacy .htconfig.php support
372 if (file_exists($this->getBasePath() . '/.htpreconfig.php')) {
374 include $this->getBasePath() . '/.htpreconfig.php';
377 // Legacy .htconfig.php support
378 if (file_exists($this->getBasePath() . '/.htconfig.php')) {
381 include $this->getBasePath() . '/.htconfig.php';
383 Core\Config::setConfigValue('database', 'hostname', $db_host);
384 Core\Config::setConfigValue('database', 'username', $db_user);
385 Core\Config::setConfigValue('database', 'password', $db_pass);
386 Core\Config::setConfigValue('database', 'database', $db_data);
387 $charset = Core\Config::getConfigValue('system', 'db_charset');
388 if (isset($charset)) {
389 Core\Config::setConfigValue('database', 'charset', $charset);
392 unset($db_host, $db_user, $db_pass, $db_data);
394 if (isset($default_timezone)) {
395 Core\Config::setConfigValue('system', 'default_timezone', $default_timezone);
396 unset($default_timezone);
399 if (isset($pidfile)) {
400 Core\Config::setConfigValue('system', 'pidfile', $pidfile);
405 Core\Config::setConfigValue('system', 'language', $lang);
410 if (file_exists($this->getBasePath() . '/config/local.config.php')) {
411 $this->loadConfigFile($this->getBasePath() . '/config/local.config.php', true);
412 } elseif (file_exists($this->getBasePath() . '/config/local.ini.php')) {
413 $this->loadINIConfigFile($this->getBasePath() . '/config/local.ini.php', true);
418 * Tries to load the specified legacy configuration file into the App->config array.
419 * Doesn't overwrite previously set values by default to prevent default config files to supersede DB Config.
421 * @deprecated since version 2018.12
422 * @param string $filepath
423 * @param bool $overwrite Force value overwrite if the config key already exists
426 public function loadINIConfigFile($filepath, $overwrite = false)
428 if (!file_exists($filepath)) {
429 throw new Exception('Error parsing non-existent INI config file ' . $filepath);
432 $contents = include($filepath);
434 $config = parse_ini_string($contents, true, INI_SCANNER_TYPED);
436 if ($config === false) {
437 throw new Exception('Error parsing INI config file ' . $filepath);
440 Core\Config::loadConfigArray($config, $overwrite);
444 * Tries to load the specified configuration file into the App->config array.
445 * Doesn't overwrite previously set values by default to prevent default config files to supersede DB Config.
447 * The config format is PHP array and the template for configuration files is the following:
455 * @param string $filepath
456 * @param bool $overwrite Force value overwrite if the config key already exists
459 public function loadConfigFile($filepath, $overwrite = false)
461 if (!file_exists($filepath)) {
462 throw new Exception('Error loading non-existent config file ' . $filepath);
465 $config = include($filepath);
467 if (!is_array($config)) {
468 throw new Exception('Error loading config file ' . $filepath);
471 Core\Config::loadConfigArray($config, $overwrite);
475 * Loads addons configuration files
477 * First loads all activated addons default configuration through the load_config hook, then load the local.config.php
478 * again to overwrite potential local addon configuration.
480 private function loadAddonConfig()
482 // Loads addons default config
483 Core\Hook::callAll('load_config');
485 // Load the local addon config file to overwritten default addon config values
486 if (file_exists($this->getBasePath() . '/config/addon.config.php')) {
487 $this->loadConfigFile($this->getBasePath() . '/config/addon.config.php', true);
488 } elseif (file_exists($this->getBasePath() . '/config/addon.ini.php')) {
489 $this->loadINIConfigFile($this->getBasePath() . '/config/addon.ini.php', true);
494 * Loads the default timezone
496 * Include support for legacy $default_timezone
498 * @global string $default_timezone
500 private function loadDefaultTimezone()
502 if (Core\Config::getConfigValue('system', 'default_timezone')) {
503 $this->timezone = Core\Config::getConfigValue('system', 'default_timezone');
505 global $default_timezone;
506 $this->timezone = !empty($default_timezone) ? $default_timezone : 'UTC';
509 if ($this->timezone) {
510 date_default_timezone_set($this->timezone);
515 * Figure out if we are running at the top of a domain or in a sub-directory and adjust accordingly
517 private function determineURLPath()
519 /* Relative script path to the web server root
520 * Not all of those $_SERVER properties can be present, so we do by inverse priority order
522 $relative_script_path = '';
523 $relative_script_path = defaults($_SERVER, 'REDIRECT_URL' , $relative_script_path);
524 $relative_script_path = defaults($_SERVER, 'REDIRECT_URI' , $relative_script_path);
525 $relative_script_path = defaults($_SERVER, 'REDIRECT_SCRIPT_URL', $relative_script_path);
526 $relative_script_path = defaults($_SERVER, 'SCRIPT_URL' , $relative_script_path);
527 $relative_script_path = defaults($_SERVER, 'REQUEST_URI' , $relative_script_path);
529 $this->urlPath = Core\Config::getConfigValue('system', 'urlpath');
531 /* $relative_script_path gives /relative/path/to/friendica/module/parameter
532 * QUERY_STRING gives pagename=module/parameter
534 * To get /relative/path/to/friendica we perform dirname() for as many levels as there are slashes in the QUERY_STRING
536 if (!empty($relative_script_path)) {
538 if (!empty($_SERVER['QUERY_STRING'])) {
539 $path = trim(rdirname($relative_script_path, substr_count(trim($_SERVER['QUERY_STRING'], '/'), '/') + 1), '/');
542 $path = trim($relative_script_path, '/');
545 if ($path && $path != $this->urlPath) {
546 $this->urlPath = $path;
551 public function loadDatabase()
553 if (DBA::connected()) {
557 $db_host = Core\Config::getConfigValue('database', 'hostname');
558 $db_user = Core\Config::getConfigValue('database', 'username');
559 $db_pass = Core\Config::getConfigValue('database', 'password');
560 $db_data = Core\Config::getConfigValue('database', 'database');
561 $charset = Core\Config::getConfigValue('database', 'charset');
563 // Use environment variables for mysql if they are set beforehand
564 if (!empty(getenv('MYSQL_HOST'))
565 && !empty(getenv('MYSQL_USERNAME') || !empty(getenv('MYSQL_USER')))
566 && getenv('MYSQL_PASSWORD') !== false
567 && !empty(getenv('MYSQL_DATABASE')))
569 $db_host = getenv('MYSQL_HOST');
570 if (!empty(getenv('MYSQL_PORT'))) {
571 $db_host .= ':' . getenv('MYSQL_PORT');
573 if (!empty(getenv('MYSQL_USERNAME'))) {
574 $db_user = getenv('MYSQL_USERNAME');
576 $db_user = getenv('MYSQL_USER');
578 $db_pass = (string) getenv('MYSQL_PASSWORD');
579 $db_data = getenv('MYSQL_DATABASE');
582 $stamp1 = microtime(true);
584 if (DBA::connect($db_host, $db_user, $db_pass, $db_data, $charset)) {
585 // Loads DB_UPDATE_VERSION constant
586 Database\DBStructure::definition(false);
589 unset($db_host, $db_user, $db_pass, $db_data, $charset);
591 $this->saveTimestamp($stamp1, 'network');
595 * @brief Returns the base filesystem path of the App
597 * It first checks for the internal variable, then for DOCUMENT_ROOT and
601 * @throws InternalServerErrorException
603 public function getBasePath()
605 $basepath = $this->basePath;
608 $basepath = Core\Config::get('system', 'basepath');
611 if (!$basepath && !empty($_SERVER['DOCUMENT_ROOT'])) {
612 $basepath = $_SERVER['DOCUMENT_ROOT'];
615 if (!$basepath && !empty($_SERVER['PWD'])) {
616 $basepath = $_SERVER['PWD'];
619 return self::getRealPath($basepath);
623 * @brief Returns a normalized file path
625 * This is a wrapper for the "realpath" function.
626 * That function cannot detect the real path when some folders aren't readable.
627 * Since this could happen with some hosters we need to handle this.
629 * @param string $path The path that is about to be normalized
630 * @return string normalized path - when possible
632 public static function getRealPath($path)
634 $normalized = realpath($path);
636 if (!is_bool($normalized)) {
643 public function getScheme()
645 return $this->scheme;
649 * @brief Retrieves the Friendica instance base URL
651 * This function assembles the base URL from multiple parts:
652 * - Protocol is determined either by the request or a combination of
653 * system.ssl_policy and the $ssl parameter.
654 * - Host name is determined either by system.hostname or inferred from request
655 * - Path is inferred from SCRIPT_NAME
657 * Note: $ssl parameter value doesn't directly correlate with the resulting protocol
659 * @param bool $ssl Whether to append http or https under SSL_POLICY_SELFSIGN
660 * @return string Friendica server base URL
661 * @throws InternalServerErrorException
663 public function getBaseURL($ssl = false)
665 $scheme = $this->scheme;
667 if (Core\Config::get('system', 'ssl_policy') == SSL_POLICY_FULL) {
671 // Basically, we have $ssl = true on any links which can only be seen by a logged in user
672 // (and also the login link). Anything seen by an outsider will have it turned off.
674 if (Core\Config::get('system', 'ssl_policy') == SSL_POLICY_SELFSIGN) {
682 if (Core\Config::get('config', 'hostname') != '') {
683 $this->hostname = Core\Config::get('config', 'hostname');
686 return $scheme . '://' . $this->hostname . (!empty($this->getURLPath()) ? '/' . $this->getURLPath() : '' );
690 * @brief Initializes the baseurl components
692 * Clears the baseurl cache to prevent inconsistencies
695 * @throws InternalServerErrorException
697 public function setBaseURL($url)
699 $parsed = @parse_url($url);
702 if (!empty($parsed)) {
703 if (!empty($parsed['scheme'])) {
704 $this->scheme = $parsed['scheme'];
707 if (!empty($parsed['host'])) {
708 $hostname = $parsed['host'];
711 if (!empty($parsed['port'])) {
712 $hostname .= ':' . $parsed['port'];
714 if (!empty($parsed['path'])) {
715 $this->urlPath = trim($parsed['path'], '\\/');
718 if (file_exists($this->getBasePath() . '/.htpreconfig.php')) {
719 include $this->getBasePath() . '/.htpreconfig.php';
722 if (Core\Config::get('config', 'hostname') != '') {
723 $this->hostname = Core\Config::get('config', 'hostname');
726 if (!isset($this->hostname) || ($this->hostname == '')) {
727 $this->hostname = $hostname;
732 public function getHostName()
734 if (Core\Config::get('config', 'hostname') != '') {
735 $this->hostname = Core\Config::get('config', 'hostname');
738 return $this->hostname;
741 public function getURLPath()
743 return $this->urlPath;
747 * Initializes App->page['htmlhead'].
752 * - Registered stylesheets (through App->registerStylesheet())
753 * - Infinite scroll data
754 * - head.tpl template
756 public function initHead()
758 $interval = ((local_user()) ? Core\PConfig::get(local_user(), 'system', 'update_interval') : 40000);
760 // If the update is 'deactivated' set it to the highest integer number (~24 days)
762 $interval = 2147483647;
765 if ($interval < 10000) {
769 // compose the page title from the sitename and the
770 // current module called
771 if (!$this->module == '') {
772 $this->page['title'] = Core\Config::getConfigValue('config', 'sitename') . ' (' . $this->module . ')';
774 $this->page['title'] = Core\Config::getConfigValue('config', 'sitename');
777 if (!empty(Core\Renderer::$theme['stylesheet'])) {
778 $stylesheet = Core\Renderer::$theme['stylesheet'];
780 $stylesheet = $this->getCurrentThemeStylesheetPath();
783 $this->registerStylesheet($stylesheet);
785 $shortcut_icon = Core\Config::get('system', 'shortcut_icon');
786 if ($shortcut_icon == '') {
787 $shortcut_icon = 'images/friendica-32.png';
790 $touch_icon = Core\Config::get('system', 'touch_icon');
791 if ($touch_icon == '') {
792 $touch_icon = 'images/friendica-128.png';
795 Core\Hook::callAll('head', $this->page['htmlhead']);
797 $tpl = Core\Renderer::getMarkupTemplate('head.tpl');
798 /* put the head template at the beginning of page['htmlhead']
799 * since the code added by the modules frequently depends on it
802 $this->page['htmlhead'] = Core\Renderer::replaceMacros($tpl, [
803 '$baseurl' => $this->getBaseURL(),
804 '$local_user' => local_user(),
805 '$generator' => 'Friendica' . ' ' . FRIENDICA_VERSION,
806 '$delitem' => Core\L10n::t('Delete this item?'),
807 '$showmore' => Core\L10n::t('show more'),
808 '$showfewer' => Core\L10n::t('show fewer'),
809 '$update_interval' => $interval,
810 '$shortcut_icon' => $shortcut_icon,
811 '$touch_icon' => $touch_icon,
812 '$block_public' => intval(Core\Config::get('system', 'block_public')),
813 '$stylesheets' => $this->stylesheets,
814 ]) . $this->page['htmlhead'];
818 * Initializes App->page['footer'].
821 * - Javascript homebase
822 * - Mobile toggle link
823 * - Registered footer scripts (through App->registerFooterScript())
824 * - footer.tpl template
826 public function initFooter()
828 // If you're just visiting, let javascript take you home
829 if (!empty($_SESSION['visitor_home'])) {
830 $homebase = $_SESSION['visitor_home'];
831 } elseif (local_user()) {
832 $homebase = 'profile/' . $this->user['nickname'];
835 if (isset($homebase)) {
836 $this->page['footer'] .= '<script>var homebase="' . $homebase . '";</script>' . "\n";
840 * Add a "toggle mobile" link if we're using a mobile device
842 if ($this->is_mobile || $this->is_tablet) {
843 if (isset($_SESSION['show-mobile']) && !$_SESSION['show-mobile']) {
844 $link = 'toggle_mobile?address=' . urlencode(curPageURL());
846 $link = 'toggle_mobile?off=1&address=' . urlencode(curPageURL());
848 $this->page['footer'] .= Core\Renderer::replaceMacros(Core\Renderer::getMarkupTemplate("toggle_mobile_footer.tpl"), [
849 '$toggle_link' => $link,
850 '$toggle_text' => Core\L10n::t('toggle mobile')
854 Core\Hook::callAll('footer', $this->page['footer']);
856 $tpl = Core\Renderer::getMarkupTemplate('footer.tpl');
857 $this->page['footer'] = Core\Renderer::replaceMacros($tpl, [
858 '$baseurl' => $this->getBaseURL(),
859 '$footerScripts' => $this->footerScripts,
860 ]) . $this->page['footer'];
864 * @brief Removes the base url from an url. This avoids some mixed content problems.
866 * @param string $origURL
868 * @return string The cleaned url
869 * @throws InternalServerErrorException
871 public function removeBaseURL($origURL)
873 // Remove the hostname from the url if it is an internal link
874 $nurl = Util\Strings::normaliseLink($origURL);
875 $base = Util\Strings::normaliseLink($this->getBaseURL());
876 $url = str_replace($base . '/', '', $nurl);
878 // if it is an external link return the orignal value
879 if ($url == Util\Strings::normaliseLink($origURL)) {
887 * Saves a timestamp for a value - f.e. a call
888 * Necessary for profiling Friendica
890 * @param int $timestamp the Timestamp
891 * @param string $value A value to profile
893 public function saveTimestamp($timestamp, $value)
895 $profiler = Core\Config::getConfigValue('system', 'profiler');
897 if (!isset($profiler) || !$profiler) {
901 $duration = (float) (microtime(true) - $timestamp);
903 if (!isset($this->performance[$value])) {
904 // Prevent ugly E_NOTICE
905 $this->performance[$value] = 0;
908 $this->performance[$value] += (float) $duration;
909 $this->performance['marktime'] += (float) $duration;
911 $callstack = Core\System::callstack();
913 if (!isset($this->callstack[$value][$callstack])) {
914 // Prevent ugly E_NOTICE
915 $this->callstack[$value][$callstack] = 0;
918 $this->callstack[$value][$callstack] += (float) $duration;
922 * Returns the current UserAgent as a String
924 * @return string the UserAgent as a String
925 * @throws InternalServerErrorException
927 public function getUserAgent()
930 FRIENDICA_PLATFORM . " '" .
931 FRIENDICA_CODENAME . "' " .
932 FRIENDICA_VERSION . '-' .
933 DB_UPDATE_VERSION . '; ' .
938 * Checks, if the call is from the Friendica App
941 * The friendica client has problems with the GUID in the notify. this is some workaround
943 private function checkFriendicaApp()
946 $this->isFriendicaApp = isset($_SERVER['HTTP_USER_AGENT']) && $_SERVER['HTTP_USER_AGENT'] == 'Apache-HttpClient/UNAVAILABLE (java 1.4)';
950 * Is the call via the Friendica app? (not a "normale" call)
952 * @return bool true if it's from the Friendica app
954 public function isFriendicaApp()
956 return $this->isFriendicaApp;
960 * @brief Checks if the site is called via a backend process
962 * This isn't a perfect solution. But we need this check very early.
963 * So we cannot wait until the modules are loaded.
965 * @param string $backend true, if the backend flag was set during App initialization
968 private function checkBackend($backend) {
991 // Check if current module is in backend or backend flag is set
992 $this->isBackend = (in_array($this->module, $backends) || $backend || $this->isBackend);
996 * Returns true, if the call is from a backend node (f.e. from a worker)
998 * @return bool Is it a known backend?
1000 public function isBackend()
1002 return $this->isBackend;
1006 * @brief Checks if the maximum number of database processes is reached
1008 * @return bool Is the limit reached?
1010 public function isMaxProcessesReached()
1012 // Deactivated, needs more investigating if this check really makes sense
1016 * Commented out to suppress static analyzer issues
1018 if ($this->is_backend()) {
1019 $process = 'backend';
1020 $max_processes = Core\Config::get('system', 'max_processes_backend');
1021 if (intval($max_processes) == 0) {
1025 $process = 'frontend';
1026 $max_processes = Core\Config::get('system', 'max_processes_frontend');
1027 if (intval($max_processes) == 0) {
1028 $max_processes = 20;
1032 $processlist = DBA::processlist();
1033 if ($processlist['list'] != '') {
1034 Core\Logger::log('Processcheck: Processes: ' . $processlist['amount'] . ' - Processlist: ' . $processlist['list'], Core\Logger::DEBUG);
1036 if ($processlist['amount'] > $max_processes) {
1037 Core\Logger::log('Processcheck: Maximum number of processes for ' . $process . ' tasks (' . $max_processes . ') reached.', Core\Logger::DEBUG);
1046 * @brief Checks if the minimal memory is reached
1048 * @return bool Is the memory limit reached?
1049 * @throws InternalServerErrorException
1051 public function isMinMemoryReached()
1053 $min_memory = Core\Config::get('system', 'min_memory', 0);
1054 if ($min_memory == 0) {
1058 if (!is_readable('/proc/meminfo')) {
1062 $memdata = explode("\n", file_get_contents('/proc/meminfo'));
1065 foreach ($memdata as $line) {
1066 $data = explode(':', $line);
1067 if (count($data) != 2) {
1070 list($key, $val) = $data;
1071 $meminfo[$key] = (int) trim(str_replace('kB', '', $val));
1072 $meminfo[$key] = (int) ($meminfo[$key] / 1024);
1075 if (!isset($meminfo['MemFree'])) {
1079 $free = $meminfo['MemFree'];
1081 $reached = ($free < $min_memory);
1084 Core\Logger::log('Minimal memory reached: ' . $free . '/' . $meminfo['MemTotal'] . ' - limit ' . $min_memory, Core\Logger::DEBUG);
1091 * @brief Checks if the maximum load is reached
1093 * @return bool Is the load reached?
1094 * @throws InternalServerErrorException
1096 public function isMaxLoadReached()
1098 if ($this->isBackend()) {
1099 $process = 'backend';
1100 $maxsysload = intval(Core\Config::get('system', 'maxloadavg'));
1101 if ($maxsysload < 1) {
1105 $process = 'frontend';
1106 $maxsysload = intval(Core\Config::get('system', 'maxloadavg_frontend'));
1107 if ($maxsysload < 1) {
1112 $load = Core\System::currentLoad();
1114 if (intval($load) > $maxsysload) {
1115 Core\Logger::log('system: load ' . $load . ' for ' . $process . ' tasks (' . $maxsysload . ') too high.');
1123 * Executes a child process with 'proc_open'
1125 * @param string $command The command to execute
1126 * @param array $args Arguments to pass to the command ( [ 'key' => value, 'key2' => value2, ... ]
1127 * @throws InternalServerErrorException
1129 public function proc_run($command, $args)
1131 if (!function_exists('proc_open')) {
1135 $cmdline = Core\Config::getConfigValue('config', 'php_path', 'php') . ' ' . escapeshellarg($command);
1137 foreach ($args as $key => $value) {
1138 if (!is_null($value) && is_bool($value) && !$value) {
1142 $cmdline .= ' --' . $key;
1143 if (!is_null($value) && !is_bool($value)) {
1144 $cmdline .= ' ' . $value;
1148 if ($this->isMinMemoryReached()) {
1152 if (strtoupper(substr(PHP_OS, 0, 3)) === 'WIN') {
1153 $resource = proc_open('cmd /c start /b ' . $cmdline, [], $foo, $this->getBasePath());
1155 $resource = proc_open($cmdline . ' &', [], $foo, $this->getBasePath());
1157 if (!is_resource($resource)) {
1158 Core\Logger::log('We got no resource for command ' . $cmdline, Core\Logger::DEBUG);
1161 proc_close($resource);
1165 * @brief Returns the system user that is executing the script
1167 * This mostly returns something like "www-data".
1169 * @return string system username
1171 private static function getSystemUser()
1173 if (!function_exists('posix_getpwuid') || !function_exists('posix_geteuid')) {
1177 $processUser = posix_getpwuid(posix_geteuid());
1178 return $processUser['name'];
1182 * @brief Checks if a given directory is usable for the system
1185 * @param bool $check_writable
1186 * @return boolean the directory is usable
1189 public static function isDirectoryUsable($directory, $check_writable = true)
1191 if ($directory == '') {
1192 Core\Logger::log('Directory is empty. This shouldn\'t happen.', Core\Logger::DEBUG);
1196 if (!file_exists($directory)) {
1197 Core\Logger::log('Path "' . $directory . '" does not exist for user ' . self::getSystemUser(), Core\Logger::DEBUG);
1201 if (is_file($directory)) {
1202 Core\Logger::log('Path "' . $directory . '" is a file for user ' . self::getSystemUser(), Core\Logger::DEBUG);
1206 if (!is_dir($directory)) {
1207 Core\Logger::log('Path "' . $directory . '" is not a directory for user ' . self::getSystemUser(), Core\Logger::DEBUG);
1211 if ($check_writable && !is_writable($directory)) {
1212 Core\Logger::log('Path "' . $directory . '" is not writable for user ' . self::getSystemUser(), Core\Logger::DEBUG);
1220 * Generates the site's default sender email address
1223 * @throws InternalServerErrorException
1225 public function getSenderEmailAddress()
1227 $sender_email = Core\Config::get('config', 'sender_email');
1228 if (empty($sender_email)) {
1229 $hostname = $this->getHostName();
1230 if (strpos($hostname, ':')) {
1231 $hostname = substr($hostname, 0, strpos($hostname, ':'));
1234 $sender_email = 'noreply@' . $hostname;
1237 return $sender_email;
1241 * Returns the current theme name.
1243 * @return string the name of the current theme
1244 * @throws InternalServerErrorException
1246 public function getCurrentTheme()
1248 if ($this->getMode()->isInstall()) {
1252 if (!$this->currentTheme) {
1253 $this->computeCurrentTheme();
1256 return $this->currentTheme;
1259 public function setCurrentTheme($theme)
1261 $this->currentTheme = $theme;
1265 * Computes the current theme name based on the node settings, the user settings and the device type
1269 private function computeCurrentTheme()
1271 $system_theme = Core\Config::get('system', 'theme');
1272 if (!$system_theme) {
1273 throw new Exception(Core\L10n::t('No system theme config value set.'));
1277 $this->currentTheme = $system_theme;
1279 $allowed_themes = explode(',', Core\Config::get('system', 'allowed_themes', $system_theme));
1282 // Find the theme that belongs to the user whose stuff we are looking at
1283 if ($this->profile_uid && ($this->profile_uid != local_user())) {
1284 // Allow folks to override user themes and always use their own on their own site.
1285 // This works only if the user is on the same server
1286 $user = DBA::selectFirst('user', ['theme'], ['uid' => $this->profile_uid]);
1287 if (DBA::isResult($user) && !Core\PConfig::get(local_user(), 'system', 'always_my_theme')) {
1288 $page_theme = $user['theme'];
1292 $user_theme = Core\Session::get('theme', $system_theme);
1294 // Specific mobile theme override
1295 if (($this->is_mobile || $this->is_tablet) && Core\Session::get('show-mobile', true)) {
1296 $system_mobile_theme = Core\Config::get('system', 'mobile-theme');
1297 $user_mobile_theme = Core\Session::get('mobile-theme', $system_mobile_theme);
1299 // --- means same mobile theme as desktop
1300 if (!empty($user_mobile_theme) && $user_mobile_theme !== '---') {
1301 $user_theme = $user_mobile_theme;
1306 $theme_name = $page_theme;
1308 $theme_name = $user_theme;
1312 && in_array($theme_name, $allowed_themes)
1313 && (file_exists('view/theme/' . $theme_name . '/style.css')
1314 || file_exists('view/theme/' . $theme_name . '/style.php'))
1316 $this->currentTheme = $theme_name;
1321 * @brief Return full URL to theme which is currently in effect.
1323 * Provide a sane default if nothing is chosen or the specified theme does not exist.
1326 * @throws InternalServerErrorException
1328 public function getCurrentThemeStylesheetPath()
1330 return Core\Theme::getStylesheetPath($this->getCurrentTheme());
1334 * Check if request was an AJAX (xmlhttprequest) request.
1336 * @return boolean true if it was an AJAX request
1338 public function isAjax()
1340 return $this->isAjax;
1344 * Returns the value of a argv key
1345 * TODO there are a lot of $a->argv usages in combination with defaults() which can be replaced with this method
1347 * @param int $position the position of the argument
1348 * @param mixed $default the default value if not found
1350 * @return mixed returns the value of the argument
1352 public function getArgumentValue($position, $default = '')
1354 if (array_key_exists($position, $this->argv)) {
1355 return $this->argv[$position];
1362 * Sets the base url for use in cmdline programs which don't have
1363 * $_SERVER variables
1365 public function checkURL()
1367 $url = Core\Config::get('system', 'url');
1369 // if the url isn't set or the stored url is radically different
1370 // than the currently visited url, store the current value accordingly.
1371 // "Radically different" ignores common variations such as http vs https
1372 // and www.example.com vs example.com.
1373 // We will only change the url to an ip address if there is no existing setting
1375 if (empty($url) || (!Util\Strings::compareLink($url, $this->getBaseURL())) && (!preg_match("/^(\d{1,3})\.(\d{1,3})\.(\d{1,3})\.(\d{1,3})$/", $this->getHostName()))) {
1376 Core\Config::set('system', 'url', $this->getBaseURL());
1381 * Frontend App script
1383 * The App object behaves like a container and a dispatcher at the same time, including a representation of the
1384 * request and a representation of the response.
1386 * This probably should change to limit the size of this monster method.
1388 public function runFrontend()
1390 // Missing DB connection: ERROR
1391 if ($this->getMode()->has(App\Mode::LOCALCONFIGPRESENT) && !$this->getMode()->has(App\Mode::DBAVAILABLE)) {
1392 Core\System::httpExit(500, ['title' => 'Error 500 - Internal Server Error', 'description' => 'Apologies but the website is unavailable at the moment.']);
1395 // Max Load Average reached: ERROR
1396 if ($this->isMaxProcessesReached() || $this->isMaxLoadReached()) {
1397 header('Retry-After: 120');
1398 header('Refresh: 120; url=' . $this->getBaseURL() . "/" . $this->query_string);
1400 Core\System::httpExit(503, ['title' => 'Error 503 - Service Temporarily Unavailable', 'description' => 'Core\System is currently overloaded. Please try again later.']);
1403 if (strstr($this->query_string, '.well-known/host-meta') && ($this->query_string != '.well-known/host-meta')) {
1404 Core\System::httpExit(404);
1407 if (!$this->getMode()->isInstall()) {
1408 // Force SSL redirection
1409 if (Core\Config::get('system', 'force_ssl') && ($this->getScheme() == "http")
1410 && intval(Core\Config::get('system', 'ssl_policy')) == SSL_POLICY_FULL
1411 && strpos($this->getBaseURL(), 'https://') === 0
1412 && $_SERVER['REQUEST_METHOD'] == 'GET') {
1413 header('HTTP/1.1 302 Moved Temporarily');
1414 header('Location: ' . $this->getBaseURL() . '/' . $this->query_string);
1418 Core\Session::init();
1419 Core\Hook::callAll('init_1');
1422 // Exclude the backend processes from the session management
1423 if (!$this->isBackend()) {
1424 $stamp1 = microtime(true);
1426 $this->saveTimestamp($stamp1, 'parser');
1427 Core\L10n::setSessionVariable();
1428 Core\L10n::setLangFromSession();
1431 Core\Worker::executeIfIdle();
1435 if (!empty($_GET['zrl']) && $this->getMode()->isNormal()) {
1436 $this->query_string = Model\Profile::stripZrls($this->query_string);
1437 if (!local_user()) {
1438 // Only continue when the given profile link seems valid
1439 // Valid profile links contain a path with "/profile/" and no query parameters
1440 if ((parse_url($_GET['zrl'], PHP_URL_QUERY) == "") &&
1441 strstr(parse_url($_GET['zrl'], PHP_URL_PATH), "/profile/")) {
1442 if (defaults($_SESSION, "visitor_home", "") != $_GET["zrl"]) {
1443 $_SESSION['my_url'] = $_GET['zrl'];
1444 $_SESSION['authenticated'] = 0;
1446 Model\Profile::zrlInit($this);
1448 // Someone came with an invalid parameter, maybe as a DDoS attempt
1449 // We simply stop processing here
1450 Core\Logger::log("Invalid ZRL parameter " . $_GET['zrl'], Core\Logger::DEBUG);
1451 Core\System::httpExit(403, ['title' => '403 Forbidden']);
1456 if (!empty($_GET['owt']) && $this->getMode()->isNormal()) {
1457 $token = $_GET['owt'];
1458 $this->query_string = Model\Profile::stripQueryParam($this->query_string, 'owt');
1459 Model\Profile::openWebAuthInit($token);
1462 Module\Login::sessionAuth();
1464 if (empty($_SESSION['authenticated'])) {
1465 header('X-Account-Management-Status: none');
1468 $_SESSION['sysmsg'] = defaults($_SESSION, 'sysmsg' , []);
1469 $_SESSION['sysmsg_info'] = defaults($_SESSION, 'sysmsg_info' , []);
1470 $_SESSION['last_updated'] = defaults($_SESSION, 'last_updated', []);
1473 * check_config() is responsible for running update scripts. These automatically
1474 * update the DB schema whenever we push a new one out. It also checks to see if
1475 * any addons have been added or removed and reacts accordingly.
1478 // in install mode, any url loads install module
1479 // but we need "view" module for stylesheet
1480 if ($this->getMode()->isInstall() && $this->module != 'view') {
1481 $this->module = 'install';
1482 } elseif (!$this->getMode()->has(App\Mode::MAINTENANCEDISABLED) && $this->module != 'view') {
1483 $this->module = 'maintenance';
1486 Core\Update::check(false);
1487 Core\Addon::loadAddons();
1488 Core\Hook::loadHooks();
1499 'right_aside' => '',
1504 if (strlen($this->module)) {
1505 // Compatibility with the Android Diaspora client
1506 if ($this->module == 'stream') {
1507 $this->internalRedirect('network?f=&order=post');
1510 if ($this->module == 'conversations') {
1511 $this->internalRedirect('message');
1514 if ($this->module == 'commented') {
1515 $this->internalRedirect('network?f=&order=comment');
1518 if ($this->module == 'liked') {
1519 $this->internalRedirect('network?f=&order=comment');
1522 if ($this->module == 'activity') {
1523 $this->internalRedirect('network/?f=&conv=1');
1526 if (($this->module == 'status_messages') && ($this->cmd == 'status_messages/new')) {
1527 $this->internalRedirect('bookmarklet');
1530 if (($this->module == 'user') && ($this->cmd == 'user/edit')) {
1531 $this->internalRedirect('settings');
1534 if (($this->module == 'tag_followings') && ($this->cmd == 'tag_followings/manage')) {
1535 $this->internalRedirect('search');
1538 // Compatibility with the Firefox App
1539 if (($this->module == "users") && ($this->cmd == "users/sign_in")) {
1540 $this->module = "login";
1543 $privateapps = Core\Config::get('config', 'private_addons', false);
1544 if (Core\Addon::isEnabled($this->module) && file_exists("addon/{$this->module}/{$this->module}.php")) {
1545 //Check if module is an app and if public access to apps is allowed or not
1546 if ((!local_user()) && Core\Hook::isAddonApp($this->module) && $privateapps) {
1547 info(Core\L10n::t("You must be logged in to use addons. "));
1549 include_once "addon/{$this->module}/{$this->module}.php";
1550 if (function_exists($this->module . '_module')) {
1551 LegacyModule::setModuleFile("addon/{$this->module}/{$this->module}.php");
1552 $this->module_class = 'Friendica\\LegacyModule';
1553 $this->module_loaded = true;
1558 // Controller class routing
1559 if (! $this->module_loaded && class_exists('Friendica\\Module\\' . ucfirst($this->module))) {
1560 $this->module_class = 'Friendica\\Module\\' . ucfirst($this->module);
1561 $this->module_loaded = true;
1564 /* If not, next look for a 'standard' program module in the 'mod' directory
1565 * We emulate a Module class through the LegacyModule class
1567 if (! $this->module_loaded && file_exists("mod/{$this->module}.php")) {
1568 LegacyModule::setModuleFile("mod/{$this->module}.php");
1569 $this->module_class = 'Friendica\\LegacyModule';
1570 $this->module_loaded = true;
1573 /* The URL provided does not resolve to a valid module.
1575 * On Dreamhost sites, quite often things go wrong for no apparent reason and they send us to '/internal_error.html'.
1576 * We don't like doing this, but as it occasionally accounts for 10-20% or more of all site traffic -
1577 * we are going to trap this and redirect back to the requested page. As long as you don't have a critical error on your page
1578 * this will often succeed and eventually do the right thing.
1580 * Otherwise we are going to emit a 404 not found.
1582 if (! $this->module_loaded) {
1583 // Stupid browser tried to pre-fetch our Javascript img template. Don't log the event or return anything - just quietly exit.
1584 if (!empty($_SERVER['QUERY_STRING']) && preg_match('/{[0-9]}/', $_SERVER['QUERY_STRING']) !== 0) {
1588 if (!empty($_SERVER['QUERY_STRING']) && ($_SERVER['QUERY_STRING'] === 'q=internal_error.html') && isset($dreamhost_error_hack)) {
1589 Core\Logger::log('index.php: dreamhost_error_hack invoked. Original URI =' . $_SERVER['REQUEST_URI']);
1590 $this->internalRedirect($_SERVER['REQUEST_URI']);
1593 Core\Logger::log('index.php: page not found: ' . $_SERVER['REQUEST_URI'] . ' ADDRESS: ' . $_SERVER['REMOTE_ADDR'] . ' QUERY: ' . $_SERVER['QUERY_STRING'], Core\Logger::DEBUG);
1595 header($_SERVER["SERVER_PROTOCOL"] . ' 404 ' . Core\L10n::t('Not Found'));
1596 $tpl = Core\Renderer::getMarkupTemplate("404.tpl");
1597 $this->page['content'] = Core\Renderer::replaceMacros($tpl, [
1598 '$message' => Core\L10n::t('Page not found.')
1605 // Initialize module that can set the current theme in the init() method, either directly or via App->profile_uid
1606 if ($this->module_loaded) {
1607 $this->page['page_title'] = $this->module;
1610 Core\Hook::callAll($this->module . '_mod_init', $placeholder);
1612 call_user_func([$this->module_class, 'init']);
1614 // "rawContent" is especially meant for technical endpoints.
1615 // This endpoint doesn't need any theme initialization or other comparable stuff.
1616 if (!$this->error) {
1617 call_user_func([$this->module_class, 'rawContent']);
1621 // Load current theme info after module has been initialized as theme could have been set in module
1622 $theme_info_file = 'view/theme/' . $this->getCurrentTheme() . '/theme.php';
1623 if (file_exists($theme_info_file)) {
1624 require_once $theme_info_file;
1627 if (function_exists(str_replace('-', '_', $this->getCurrentTheme()) . '_init')) {
1628 $func = str_replace('-', '_', $this->getCurrentTheme()) . '_init';
1632 if ($this->module_loaded) {
1633 if (! $this->error && $_SERVER['REQUEST_METHOD'] === 'POST') {
1634 Core\Hook::callAll($this->module . '_mod_post', $_POST);
1635 call_user_func([$this->module_class, 'post']);
1638 if (! $this->error) {
1639 Core\Hook::callAll($this->module . '_mod_afterpost', $placeholder);
1640 call_user_func([$this->module_class, 'afterpost']);
1643 if (! $this->error) {
1644 $arr = ['content' => $content];
1645 Core\Hook::callAll($this->module . '_mod_content', $arr);
1646 $content = $arr['content'];
1647 $arr = ['content' => call_user_func([$this->module_class, 'content'])];
1648 Core\Hook::callAll($this->module . '_mod_aftercontent', $arr);
1649 $content .= $arr['content'];
1653 // initialise content region
1654 if ($this->getMode()->isNormal()) {
1655 Core\Hook::callAll('page_content_top', $this->page['content']);
1658 $this->page['content'] .= $content;
1660 /* Create the page head after setting the language
1661 * and getting any auth credentials.
1663 * Moved initHead() and initFooter() to after
1664 * all the module functions have executed so that all
1665 * theme choices made by the modules can take effect.
1669 /* Build the page ending -- this is stuff that goes right before
1670 * the closing </body> tag
1672 $this->initFooter();
1674 /* now that we've been through the module content, see if the page reported
1675 * a permission problem and if so, a 403 response would seem to be in order.
1677 if (stristr(implode("", $_SESSION['sysmsg']), Core\L10n::t('Permission denied'))) {
1678 header($_SERVER["SERVER_PROTOCOL"] . ' 403 ' . Core\L10n::t('Permission denied.'));
1681 // Report anything which needs to be communicated in the notification area (before the main body)
1682 Core\Hook::callAll('page_end', $this->page['content']);
1684 // Add the navigation (menu) template
1685 if ($this->module != 'install' && $this->module != 'maintenance') {
1686 $this->page['htmlhead'] .= Core\Renderer::replaceMacros(Core\Renderer::getMarkupTemplate('nav_head.tpl'), []);
1687 $this->page['nav'] = Content\Nav::build($this);
1690 // Build the page - now that we have all the components
1691 if (isset($_GET["mode"]) && (($_GET["mode"] == "raw") || ($_GET["mode"] == "minimal"))) {
1692 $doc = new DOMDocument();
1694 $target = new DOMDocument();
1695 $target->loadXML("<root></root>");
1697 $content = mb_convert_encoding($this->page["content"], 'HTML-ENTITIES', "UTF-8");
1699 /// @TODO one day, kill those error-surpressing @ stuff, or PHP should ban it
1700 @$doc->loadHTML($content);
1702 $xpath = new DOMXPath($doc);
1704 $list = $xpath->query("//*[contains(@id,'tread-wrapper-')]"); /* */
1706 foreach ($list as $item) {
1707 $item = $target->importNode($item, true);
1709 // And then append it to the target
1710 $target->documentElement->appendChild($item);
1713 if ($_GET["mode"] == "raw") {
1714 header("Content-type: text/html; charset=utf-8");
1716 echo substr($target->saveHTML(), 6, -8);
1722 $page = $this->page;
1723 $profile = $this->profile;
1725 header("X-Friendica-Version: " . FRIENDICA_VERSION);
1726 header("Content-type: text/html; charset=utf-8");
1728 if (Core\Config::get('system', 'hsts') && (Core\Config::get('system', 'ssl_policy') == SSL_POLICY_FULL)) {
1729 header("Strict-Transport-Security: max-age=31536000");
1732 // Some security stuff
1733 header('X-Content-Type-Options: nosniff');
1734 header('X-XSS-Protection: 1; mode=block');
1735 header('X-Permitted-Cross-Domain-Policies: none');
1736 header('X-Frame-Options: sameorigin');
1738 // Things like embedded OSM maps don't work, when this is enabled
1739 // header("Content-Security-Policy: default-src 'self'; script-src 'self' 'unsafe-inline' 'unsafe-eval'; connect-src 'self'; style-src 'self' 'unsafe-inline'; font-src 'self'; img-src 'self' https: data:; media-src 'self' https:; child-src 'self' https:; object-src 'none'");
1741 /* We use $_GET["mode"] for special page templates. So we will check if we have
1742 * to load another page template than the default one.
1743 * The page templates are located in /view/php/ or in the theme directory.
1745 if (isset($_GET["mode"])) {
1746 $template = Core\Theme::getPathForFile($_GET["mode"] . '.php');
1749 // If there is no page template use the default page template
1750 if (empty($template)) {
1751 $template = Core\Theme::getPathForFile("default.php");
1754 // Theme templates expect $a as an App instance
1757 // Used as is in view/php/default.php
1758 $lang = Core\L10n::getCurrentLang();
1760 /// @TODO Looks unsafe (remote-inclusion), is maybe not but Core\Theme::getPathForFile() uses file_exists() but does not escape anything
1761 require_once $template;
1765 * Redirects to another module relative to the current Friendica base.
1766 * If you want to redirect to a external URL, use System::externalRedirectTo()
1768 * @param string $toUrl The destination URL (Default is empty, which is the default page of the Friendica node)
1769 * @param bool $ssl if true, base URL will try to get called with https:// (works just for relative paths)
1771 * @throws InternalServerErrorException In Case the given URL is not relative to the Friendica node
1773 public function internalRedirect($toUrl = '', $ssl = false)
1775 if (!empty(parse_url($toUrl, PHP_URL_SCHEME))) {
1776 throw new InternalServerErrorException("'$toUrl is not a relative path, please use System::externalRedirectTo");
1779 $redirectTo = $this->getBaseURL($ssl) . '/' . ltrim($toUrl, '/');
1780 Core\System::externalRedirect($redirectTo);
1784 * Automatically redirects to relative or absolute URL
1785 * Should only be used if it isn't clear if the URL is either internal or external
1787 * @param string $toUrl The target URL
1788 * @throws InternalServerErrorException
1790 public function redirect($toUrl)
1792 if (!empty(parse_url($toUrl, PHP_URL_SCHEME))) {
1793 Core\System::externalRedirect($toUrl);
1795 $this->internalRedirect($toUrl);