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 = '';
44 public $error = false;
50 public $interactive = true;
52 public $is_mobile = false;
53 public $is_tablet = false;
54 public $performance = [];
55 public $callstack = [];
56 public $theme_info = [];
58 // Allow themes to control internal parameters
59 // by changing App values in theme.php
61 public $sourcename = '';
62 public $videowidth = 425;
63 public $videoheight = 350;
64 public $force_max_items = 0;
65 public $theme_events_in_profile = true;
67 public $stylesheets = [];
68 public $footerScripts = [];
71 * @var App\Mode The Mode of the Application
76 * @var string The App base path
81 * @var string The App URL path
86 * @var bool true, if the call is from the Friendica APP, otherwise false
88 private $isFriendicaApp;
91 * @var bool true, if the call is from an backend node (f.e. worker)
96 * @var string The name of the current theme
98 private $currentTheme;
101 * @var bool check if request was an AJAX (xmlhttprequest) request
108 public $mobileDetect;
111 * @var LoggerInterface The current logger of this App
116 * Register a stylesheet file path to be included in the <head> tag of every page.
117 * Inclusion is done in App->initHead().
118 * The path can be absolute or relative to the Friendica installation base folder.
122 * @param string $path
123 * @throws InternalServerErrorException
125 public function registerStylesheet($path)
127 $url = str_replace($this->getBasePath() . DIRECTORY_SEPARATOR, '', $path);
129 $this->stylesheets[] = trim($url, '/');
133 * Register a javascript file path to be included in the <footer> tag of every page.
134 * Inclusion is done in App->initFooter().
135 * The path can be absolute or relative to the Friendica installation base folder.
139 * @param string $path
140 * @throws InternalServerErrorException
142 public function registerFooterScript($path)
144 $url = str_replace($this->getBasePath() . DIRECTORY_SEPARATOR, '', $path);
146 $this->footerScripts[] = trim($url, '/');
155 * @brief App constructor.
157 * @param string $basePath Path to the app base folder
158 * @param LoggerInterface $logger Logger of this application
159 * @param bool $isBackend Whether it is used for backend or frontend (Default true=backend)
161 * @throws Exception if the Basepath is not usable
163 public function __construct($basePath, LoggerInterface $logger, $isBackend = true)
165 $this->logger = $logger;
167 if (!static::isDirectoryUsable($basePath, false)) {
168 throw new Exception('Basepath ' . $basePath . ' isn\'t usable.');
171 BaseObject::setApp($this);
173 $this->basePath = rtrim($basePath, DIRECTORY_SEPARATOR);
174 $this->checkBackend($isBackend);
175 $this->checkFriendicaApp();
177 $this->performance['start'] = microtime(true);
178 $this->performance['database'] = 0;
179 $this->performance['database_write'] = 0;
180 $this->performance['cache'] = 0;
181 $this->performance['cache_write'] = 0;
182 $this->performance['network'] = 0;
183 $this->performance['file'] = 0;
184 $this->performance['rendering'] = 0;
185 $this->performance['parser'] = 0;
186 $this->performance['marktime'] = 0;
187 $this->performance['markstart'] = microtime(true);
189 $this->callstack['database'] = [];
190 $this->callstack['database_write'] = [];
191 $this->callstack['cache'] = [];
192 $this->callstack['cache_write'] = [];
193 $this->callstack['network'] = [];
194 $this->callstack['file'] = [];
195 $this->callstack['rendering'] = [];
196 $this->callstack['parser'] = [];
198 $this->mode = new App\Mode($basePath);
204 // This has to be quite large to deal with embedded private photos
205 ini_set('pcre.backtrack_limit', 500000);
207 $this->scheme = 'http';
209 if (!empty($_SERVER['HTTPS']) ||
210 !empty($_SERVER['HTTP_FORWARDED']) && preg_match('/proto=https/', $_SERVER['HTTP_FORWARDED']) ||
211 !empty($_SERVER['HTTP_X_FORWARDED_PROTO']) && $_SERVER['HTTP_X_FORWARDED_PROTO'] == 'https' ||
212 !empty($_SERVER['HTTP_X_FORWARDED_SSL']) && $_SERVER['HTTP_X_FORWARDED_SSL'] == 'on' ||
213 !empty($_SERVER['FRONT_END_HTTPS']) && $_SERVER['FRONT_END_HTTPS'] == 'on' ||
214 !empty($_SERVER['SERVER_PORT']) && (intval($_SERVER['SERVER_PORT']) == 443) // XXX: reasonable assumption, but isn't this hardcoding too much?
216 $this->scheme = 'https';
219 if (!empty($_SERVER['SERVER_NAME'])) {
220 $this->hostname = $_SERVER['SERVER_NAME'];
222 if (!empty($_SERVER['SERVER_PORT']) && $_SERVER['SERVER_PORT'] != 80 && $_SERVER['SERVER_PORT'] != 443) {
223 $this->hostname .= ':' . $_SERVER['SERVER_PORT'];
228 get_include_path() . PATH_SEPARATOR
229 . $this->getBasePath() . DIRECTORY_SEPARATOR . 'include' . PATH_SEPARATOR
230 . $this->getBasePath() . DIRECTORY_SEPARATOR . 'library' . PATH_SEPARATOR
231 . $this->getBasePath());
233 if (!empty($_SERVER['QUERY_STRING']) && strpos($_SERVER['QUERY_STRING'], 'pagename=') === 0) {
234 $this->query_string = substr($_SERVER['QUERY_STRING'], 9);
235 } elseif (!empty($_SERVER['QUERY_STRING']) && strpos($_SERVER['QUERY_STRING'], 'q=') === 0) {
236 $this->query_string = substr($_SERVER['QUERY_STRING'], 2);
239 // removing trailing / - maybe a nginx problem
240 $this->query_string = ltrim($this->query_string, '/');
242 if (!empty($_GET['pagename'])) {
243 $this->cmd = trim($_GET['pagename'], '/\\');
244 } elseif (!empty($_GET['q'])) {
245 $this->cmd = trim($_GET['q'], '/\\');
249 $this->query_string = str_replace($this->cmd . '&', $this->cmd . '?', $this->query_string);
251 // unix style "homedir"
252 if (substr($this->cmd, 0, 1) === '~') {
253 $this->cmd = 'profile/' . substr($this->cmd, 1);
256 // Diaspora style profile url
257 if (substr($this->cmd, 0, 2) === 'u/') {
258 $this->cmd = 'profile/' . substr($this->cmd, 2);
262 * Break the URL path into C style argc/argv style arguments for our
263 * modules. Given "http://example.com/module/arg1/arg2", $this->argc
264 * will be 3 (integer) and $this->argv will contain:
270 * There will always be one argument. If provided a naked domain
271 * URL, $this->argv[0] is set to "home".
274 $this->argv = explode('/', $this->cmd);
275 $this->argc = count($this->argv);
276 if ((array_key_exists('0', $this->argv)) && strlen($this->argv[0])) {
277 $this->module = str_replace('.', '_', $this->argv[0]);
278 $this->module = str_replace('-', '_', $this->module);
281 $this->argv = ['home'];
282 $this->module = 'home';
285 // Detect mobile devices
286 $mobile_detect = new MobileDetect();
288 $this->mobileDetect = $mobile_detect;
290 $this->is_mobile = $mobile_detect->isMobile();
291 $this->is_tablet = $mobile_detect->isTablet();
293 $this->isAjax = strtolower(defaults($_SERVER, 'HTTP_X_REQUESTED_WITH', '')) == 'xmlhttprequest';
295 // Register template engines
296 Core\Renderer::registerTemplateEngine('Friendica\Render\FriendicaSmartyEngine');
300 * Returns the Mode of the Application
302 * @return App\Mode The Application Mode
304 * @throws InternalServerErrorException when the mode isn't created
306 public function getMode()
308 if (empty($this->mode)) {
309 throw new InternalServerErrorException('Mode of the Application is not defined');
316 * Returns the Logger of the Application
318 * @return LoggerInterface The Logger
319 * @throws InternalServerErrorException when the logger isn't created
321 public function getLogger()
323 if (empty($this->logger)) {
324 throw new InternalServerErrorException('Logger of the Application is not defined');
327 return $this->logger;
331 * Reloads the whole app instance
333 public function reload()
335 // The order of the following calls is important to ensure proper initialization
336 $this->loadConfigFiles();
338 $this->loadDatabase();
340 $this->getMode()->determine($this->getBasePath());
342 $this->determineURLPath();
346 if ($this->getMode()->has(App\Mode::DBAVAILABLE)) {
347 Core\Hook::loadHooks();
349 $this->loadAddonConfig();
352 $this->loadDefaultTimezone();
356 $this->process_id = Core\System::processID('log');
358 Core\Logger::setLogger($this->logger);
362 * Load the configuration files
364 * First loads the default value for all the configuration keys, then the legacy configuration files, then the
365 * expected local.config.php
367 private function loadConfigFiles()
369 $this->loadConfigFile($this->getBasePath() . '/config/defaults.config.php');
370 $this->loadConfigFile($this->getBasePath() . '/config/settings.config.php');
372 // Legacy .htconfig.php support
373 if (file_exists($this->getBasePath() . '/.htpreconfig.php')) {
375 include $this->getBasePath() . '/.htpreconfig.php';
378 // Legacy .htconfig.php support
379 if (file_exists($this->getBasePath() . '/.htconfig.php')) {
382 include $this->getBasePath() . '/.htconfig.php';
384 $this->setConfigValue('database', 'hostname', $db_host);
385 $this->setConfigValue('database', 'username', $db_user);
386 $this->setConfigValue('database', 'password', $db_pass);
387 $this->setConfigValue('database', 'database', $db_data);
388 if (isset($a->config['system']['db_charset'])) {
389 $this->setConfigValue('database', 'charset', $a->config['system']['db_charset']);
392 unset($db_host, $db_user, $db_pass, $db_data);
394 if (isset($default_timezone)) {
395 $this->setConfigValue('system', 'default_timezone', $default_timezone);
396 unset($default_timezone);
399 if (isset($pidfile)) {
400 $this->setConfigValue('system', 'pidfile', $pidfile);
405 $this->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 $this->loadConfigArray($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 $this->loadConfigArray($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 * Tries to load the specified configuration array into the App->config array.
495 * Doesn't overwrite previously set values by default to prevent default config files to supersede DB Config.
497 * @param array $config
498 * @param bool $overwrite Force value overwrite if the config key already exists
500 private function loadConfigArray(array $config, $overwrite = false)
502 foreach ($config as $category => $values) {
503 foreach ($values as $key => $value) {
505 $this->setConfigValue($category, $key, $value);
507 $this->setDefaultConfigValue($category, $key, $value);
514 * Loads the default timezone
516 * Include support for legacy $default_timezone
518 * @global string $default_timezone
520 private function loadDefaultTimezone()
522 if ($this->getConfigValue('system', 'default_timezone')) {
523 $this->timezone = $this->getConfigValue('system', 'default_timezone');
525 global $default_timezone;
526 $this->timezone = !empty($default_timezone) ? $default_timezone : 'UTC';
529 if ($this->timezone) {
530 date_default_timezone_set($this->timezone);
535 * Figure out if we are running at the top of a domain or in a sub-directory and adjust accordingly
537 private function determineURLPath()
539 /* Relative script path to the web server root
540 * Not all of those $_SERVER properties can be present, so we do by inverse priority order
542 $relative_script_path = '';
543 $relative_script_path = defaults($_SERVER, 'REDIRECT_URL' , $relative_script_path);
544 $relative_script_path = defaults($_SERVER, 'REDIRECT_URI' , $relative_script_path);
545 $relative_script_path = defaults($_SERVER, 'REDIRECT_SCRIPT_URL', $relative_script_path);
546 $relative_script_path = defaults($_SERVER, 'SCRIPT_URL' , $relative_script_path);
547 $relative_script_path = defaults($_SERVER, 'REQUEST_URI' , $relative_script_path);
549 $this->urlPath = $this->getConfigValue('system', 'urlpath');
551 /* $relative_script_path gives /relative/path/to/friendica/module/parameter
552 * QUERY_STRING gives pagename=module/parameter
554 * To get /relative/path/to/friendica we perform dirname() for as many levels as there are slashes in the QUERY_STRING
556 if (!empty($relative_script_path)) {
558 if (!empty($_SERVER['QUERY_STRING'])) {
559 $path = trim(rdirname($relative_script_path, substr_count(trim($_SERVER['QUERY_STRING'], '/'), '/') + 1), '/');
562 $path = trim($relative_script_path, '/');
565 if ($path && $path != $this->urlPath) {
566 $this->urlPath = $path;
571 public function loadDatabase()
573 if (DBA::connected()) {
577 $db_host = $this->getConfigValue('database', 'hostname');
578 $db_user = $this->getConfigValue('database', 'username');
579 $db_pass = $this->getConfigValue('database', 'password');
580 $db_data = $this->getConfigValue('database', 'database');
581 $charset = $this->getConfigValue('database', 'charset');
583 // Use environment variables for mysql if they are set beforehand
584 if (!empty(getenv('MYSQL_HOST'))
585 && !empty(getenv('MYSQL_USERNAME') || !empty(getenv('MYSQL_USER')))
586 && getenv('MYSQL_PASSWORD') !== false
587 && !empty(getenv('MYSQL_DATABASE')))
589 $db_host = getenv('MYSQL_HOST');
590 if (!empty(getenv('MYSQL_PORT'))) {
591 $db_host .= ':' . getenv('MYSQL_PORT');
593 if (!empty(getenv('MYSQL_USERNAME'))) {
594 $db_user = getenv('MYSQL_USERNAME');
596 $db_user = getenv('MYSQL_USER');
598 $db_pass = (string) getenv('MYSQL_PASSWORD');
599 $db_data = getenv('MYSQL_DATABASE');
602 $stamp1 = microtime(true);
604 if (DBA::connect($db_host, $db_user, $db_pass, $db_data, $charset)) {
605 // Loads DB_UPDATE_VERSION constant
606 Database\DBStructure::definition(false);
609 unset($db_host, $db_user, $db_pass, $db_data, $charset);
611 $this->saveTimestamp($stamp1, 'network');
615 * @brief Returns the base filesystem path of the App
617 * It first checks for the internal variable, then for DOCUMENT_ROOT and
621 * @throws InternalServerErrorException
623 public function getBasePath()
625 $basepath = $this->basePath;
628 $basepath = Core\Config::get('system', 'basepath');
631 if (!$basepath && !empty($_SERVER['DOCUMENT_ROOT'])) {
632 $basepath = $_SERVER['DOCUMENT_ROOT'];
635 if (!$basepath && !empty($_SERVER['PWD'])) {
636 $basepath = $_SERVER['PWD'];
639 return self::getRealPath($basepath);
643 * @brief Returns a normalized file path
645 * This is a wrapper for the "realpath" function.
646 * That function cannot detect the real path when some folders aren't readable.
647 * Since this could happen with some hosters we need to handle this.
649 * @param string $path The path that is about to be normalized
650 * @return string normalized path - when possible
652 public static function getRealPath($path)
654 $normalized = realpath($path);
656 if (!is_bool($normalized)) {
663 public function getScheme()
665 return $this->scheme;
669 * @brief Retrieves the Friendica instance base URL
671 * This function assembles the base URL from multiple parts:
672 * - Protocol is determined either by the request or a combination of
673 * system.ssl_policy and the $ssl parameter.
674 * - Host name is determined either by system.hostname or inferred from request
675 * - Path is inferred from SCRIPT_NAME
677 * Note: $ssl parameter value doesn't directly correlate with the resulting protocol
679 * @param bool $ssl Whether to append http or https under SSL_POLICY_SELFSIGN
680 * @return string Friendica server base URL
681 * @throws InternalServerErrorException
683 public function getBaseURL($ssl = false)
685 $scheme = $this->scheme;
687 if (Core\Config::get('system', 'ssl_policy') == SSL_POLICY_FULL) {
691 // Basically, we have $ssl = true on any links which can only be seen by a logged in user
692 // (and also the login link). Anything seen by an outsider will have it turned off.
694 if (Core\Config::get('system', 'ssl_policy') == SSL_POLICY_SELFSIGN) {
702 if (Core\Config::get('config', 'hostname') != '') {
703 $this->hostname = Core\Config::get('config', 'hostname');
706 return $scheme . '://' . $this->hostname . (!empty($this->getURLPath()) ? '/' . $this->getURLPath() : '' );
710 * @brief Initializes the baseurl components
712 * Clears the baseurl cache to prevent inconsistencies
715 * @throws InternalServerErrorException
717 public function setBaseURL($url)
719 $parsed = @parse_url($url);
722 if (!empty($parsed)) {
723 if (!empty($parsed['scheme'])) {
724 $this->scheme = $parsed['scheme'];
727 if (!empty($parsed['host'])) {
728 $hostname = $parsed['host'];
731 if (!empty($parsed['port'])) {
732 $hostname .= ':' . $parsed['port'];
734 if (!empty($parsed['path'])) {
735 $this->urlPath = trim($parsed['path'], '\\/');
738 if (file_exists($this->getBasePath() . '/.htpreconfig.php')) {
739 include $this->getBasePath() . '/.htpreconfig.php';
742 if (Core\Config::get('config', 'hostname') != '') {
743 $this->hostname = Core\Config::get('config', 'hostname');
746 if (!isset($this->hostname) || ($this->hostname == '')) {
747 $this->hostname = $hostname;
752 public function getHostName()
754 if (Core\Config::get('config', 'hostname') != '') {
755 $this->hostname = Core\Config::get('config', 'hostname');
758 return $this->hostname;
761 public function getURLPath()
763 return $this->urlPath;
767 * Initializes App->page['htmlhead'].
772 * - Registered stylesheets (through App->registerStylesheet())
773 * - Infinite scroll data
774 * - head.tpl template
776 public function initHead()
778 $interval = ((local_user()) ? Core\PConfig::get(local_user(), 'system', 'update_interval') : 40000);
780 // If the update is 'deactivated' set it to the highest integer number (~24 days)
782 $interval = 2147483647;
785 if ($interval < 10000) {
789 // compose the page title from the sitename and the
790 // current module called
791 if (!$this->module == '') {
792 $this->page['title'] = $this->config['sitename'] . ' (' . $this->module . ')';
794 $this->page['title'] = $this->config['sitename'];
797 if (!empty(Core\Renderer::$theme['stylesheet'])) {
798 $stylesheet = Core\Renderer::$theme['stylesheet'];
800 $stylesheet = $this->getCurrentThemeStylesheetPath();
803 $this->registerStylesheet($stylesheet);
805 $shortcut_icon = Core\Config::get('system', 'shortcut_icon');
806 if ($shortcut_icon == '') {
807 $shortcut_icon = 'images/friendica-32.png';
810 $touch_icon = Core\Config::get('system', 'touch_icon');
811 if ($touch_icon == '') {
812 $touch_icon = 'images/friendica-128.png';
815 Core\Hook::callAll('head', $this->page['htmlhead']);
817 $tpl = Core\Renderer::getMarkupTemplate('head.tpl');
818 /* put the head template at the beginning of page['htmlhead']
819 * since the code added by the modules frequently depends on it
822 $this->page['htmlhead'] = Core\Renderer::replaceMacros($tpl, [
823 '$baseurl' => $this->getBaseURL(),
824 '$local_user' => local_user(),
825 '$generator' => 'Friendica' . ' ' . FRIENDICA_VERSION,
826 '$delitem' => Core\L10n::t('Delete this item?'),
827 '$showmore' => Core\L10n::t('show more'),
828 '$showfewer' => Core\L10n::t('show fewer'),
829 '$update_interval' => $interval,
830 '$shortcut_icon' => $shortcut_icon,
831 '$touch_icon' => $touch_icon,
832 '$block_public' => intval(Core\Config::get('system', 'block_public')),
833 '$stylesheets' => $this->stylesheets,
834 ]) . $this->page['htmlhead'];
838 * Initializes App->page['footer'].
841 * - Javascript homebase
842 * - Mobile toggle link
843 * - Registered footer scripts (through App->registerFooterScript())
844 * - footer.tpl template
846 public function initFooter()
848 // If you're just visiting, let javascript take you home
849 if (!empty($_SESSION['visitor_home'])) {
850 $homebase = $_SESSION['visitor_home'];
851 } elseif (local_user()) {
852 $homebase = 'profile/' . $this->user['nickname'];
855 if (isset($homebase)) {
856 $this->page['footer'] .= '<script>var homebase="' . $homebase . '";</script>' . "\n";
860 * Add a "toggle mobile" link if we're using a mobile device
862 if ($this->is_mobile || $this->is_tablet) {
863 if (isset($_SESSION['show-mobile']) && !$_SESSION['show-mobile']) {
864 $link = 'toggle_mobile?address=' . urlencode(curPageURL());
866 $link = 'toggle_mobile?off=1&address=' . urlencode(curPageURL());
868 $this->page['footer'] .= Core\Renderer::replaceMacros(Core\Renderer::getMarkupTemplate("toggle_mobile_footer.tpl"), [
869 '$toggle_link' => $link,
870 '$toggle_text' => Core\L10n::t('toggle mobile')
874 Core\Hook::callAll('footer', $this->page['footer']);
876 $tpl = Core\Renderer::getMarkupTemplate('footer.tpl');
877 $this->page['footer'] = Core\Renderer::replaceMacros($tpl, [
878 '$baseurl' => $this->getBaseURL(),
879 '$footerScripts' => $this->footerScripts,
880 ]) . $this->page['footer'];
884 * @brief Removes the base url from an url. This avoids some mixed content problems.
886 * @param string $origURL
888 * @return string The cleaned url
889 * @throws InternalServerErrorException
891 public function removeBaseURL($origURL)
893 // Remove the hostname from the url if it is an internal link
894 $nurl = Util\Strings::normaliseLink($origURL);
895 $base = Util\Strings::normaliseLink($this->getBaseURL());
896 $url = str_replace($base . '/', '', $nurl);
898 // if it is an external link return the orignal value
899 if ($url == Util\Strings::normaliseLink($origURL)) {
907 * Saves a timestamp for a value - f.e. a call
908 * Necessary for profiling Friendica
910 * @param int $timestamp the Timestamp
911 * @param string $value A value to profile
913 public function saveTimestamp($timestamp, $value)
915 if (!isset($this->config['system']['profiler']) || !$this->config['system']['profiler']) {
919 $duration = (float) (microtime(true) - $timestamp);
921 if (!isset($this->performance[$value])) {
922 // Prevent ugly E_NOTICE
923 $this->performance[$value] = 0;
926 $this->performance[$value] += (float) $duration;
927 $this->performance['marktime'] += (float) $duration;
929 $callstack = Core\System::callstack();
931 if (!isset($this->callstack[$value][$callstack])) {
932 // Prevent ugly E_NOTICE
933 $this->callstack[$value][$callstack] = 0;
936 $this->callstack[$value][$callstack] += (float) $duration;
940 * Returns the current UserAgent as a String
942 * @return string the UserAgent as a String
943 * @throws InternalServerErrorException
945 public function getUserAgent()
948 FRIENDICA_PLATFORM . " '" .
949 FRIENDICA_CODENAME . "' " .
950 FRIENDICA_VERSION . '-' .
951 DB_UPDATE_VERSION . '; ' .
956 * Checks, if the call is from the Friendica App
959 * The friendica client has problems with the GUID in the notify. this is some workaround
961 private function checkFriendicaApp()
964 $this->isFriendicaApp = isset($_SERVER['HTTP_USER_AGENT']) && $_SERVER['HTTP_USER_AGENT'] == 'Apache-HttpClient/UNAVAILABLE (java 1.4)';
968 * Is the call via the Friendica app? (not a "normale" call)
970 * @return bool true if it's from the Friendica app
972 public function isFriendicaApp()
974 return $this->isFriendicaApp;
978 * @brief Checks if the site is called via a backend process
980 * This isn't a perfect solution. But we need this check very early.
981 * So we cannot wait until the modules are loaded.
983 * @param string $backend true, if the backend flag was set during App initialization
986 private function checkBackend($backend) {
1009 // Check if current module is in backend or backend flag is set
1010 $this->isBackend = (in_array($this->module, $backends) || $backend || $this->isBackend);
1014 * Returns true, if the call is from a backend node (f.e. from a worker)
1016 * @return bool Is it a known backend?
1018 public function isBackend()
1020 return $this->isBackend;
1024 * @brief Checks if the maximum number of database processes is reached
1026 * @return bool Is the limit reached?
1028 public function isMaxProcessesReached()
1030 // Deactivated, needs more investigating if this check really makes sense
1034 * Commented out to suppress static analyzer issues
1036 if ($this->is_backend()) {
1037 $process = 'backend';
1038 $max_processes = Core\Config::get('system', 'max_processes_backend');
1039 if (intval($max_processes) == 0) {
1043 $process = 'frontend';
1044 $max_processes = Core\Config::get('system', 'max_processes_frontend');
1045 if (intval($max_processes) == 0) {
1046 $max_processes = 20;
1050 $processlist = DBA::processlist();
1051 if ($processlist['list'] != '') {
1052 Core\Logger::log('Processcheck: Processes: ' . $processlist['amount'] . ' - Processlist: ' . $processlist['list'], Core\Logger::DEBUG);
1054 if ($processlist['amount'] > $max_processes) {
1055 Core\Logger::log('Processcheck: Maximum number of processes for ' . $process . ' tasks (' . $max_processes . ') reached.', Core\Logger::DEBUG);
1064 * @brief Checks if the minimal memory is reached
1066 * @return bool Is the memory limit reached?
1067 * @throws InternalServerErrorException
1069 public function isMinMemoryReached()
1071 $min_memory = Core\Config::get('system', 'min_memory', 0);
1072 if ($min_memory == 0) {
1076 if (!is_readable('/proc/meminfo')) {
1080 $memdata = explode("\n", file_get_contents('/proc/meminfo'));
1083 foreach ($memdata as $line) {
1084 $data = explode(':', $line);
1085 if (count($data) != 2) {
1088 list($key, $val) = $data;
1089 $meminfo[$key] = (int) trim(str_replace('kB', '', $val));
1090 $meminfo[$key] = (int) ($meminfo[$key] / 1024);
1093 if (!isset($meminfo['MemFree'])) {
1097 $free = $meminfo['MemFree'];
1099 $reached = ($free < $min_memory);
1102 Core\Logger::log('Minimal memory reached: ' . $free . '/' . $meminfo['MemTotal'] . ' - limit ' . $min_memory, Core\Logger::DEBUG);
1109 * @brief Checks if the maximum load is reached
1111 * @return bool Is the load reached?
1112 * @throws InternalServerErrorException
1114 public function isMaxLoadReached()
1116 if ($this->isBackend()) {
1117 $process = 'backend';
1118 $maxsysload = intval(Core\Config::get('system', 'maxloadavg'));
1119 if ($maxsysload < 1) {
1123 $process = 'frontend';
1124 $maxsysload = intval(Core\Config::get('system', 'maxloadavg_frontend'));
1125 if ($maxsysload < 1) {
1130 $load = Core\System::currentLoad();
1132 if (intval($load) > $maxsysload) {
1133 Core\Logger::log('system: load ' . $load . ' for ' . $process . ' tasks (' . $maxsysload . ') too high.');
1141 * Executes a child process with 'proc_open'
1143 * @param string $command The command to execute
1144 * @param array $args Arguments to pass to the command ( [ 'key' => value, 'key2' => value2, ... ]
1145 * @throws InternalServerErrorException
1147 public function proc_run($command, $args)
1149 if (!function_exists('proc_open')) {
1153 $cmdline = $this->getConfigValue('config', 'php_path', 'php') . ' ' . escapeshellarg($command);
1155 foreach ($args as $key => $value) {
1156 if (!is_null($value) && is_bool($value) && !$value) {
1160 $cmdline .= ' --' . $key;
1161 if (!is_null($value) && !is_bool($value)) {
1162 $cmdline .= ' ' . $value;
1166 if ($this->isMinMemoryReached()) {
1170 if (strtoupper(substr(PHP_OS, 0, 3)) === 'WIN') {
1171 $resource = proc_open('cmd /c start /b ' . $cmdline, [], $foo, $this->getBasePath());
1173 $resource = proc_open($cmdline . ' &', [], $foo, $this->getBasePath());
1175 if (!is_resource($resource)) {
1176 Core\Logger::log('We got no resource for command ' . $cmdline, Core\Logger::DEBUG);
1179 proc_close($resource);
1183 * @brief Returns the system user that is executing the script
1185 * This mostly returns something like "www-data".
1187 * @return string system username
1189 private static function getSystemUser()
1191 if (!function_exists('posix_getpwuid') || !function_exists('posix_geteuid')) {
1195 $processUser = posix_getpwuid(posix_geteuid());
1196 return $processUser['name'];
1200 * @brief Checks if a given directory is usable for the system
1203 * @param bool $check_writable
1204 * @return boolean the directory is usable
1207 public static function isDirectoryUsable($directory, $check_writable = true)
1209 if ($directory == '') {
1210 Core\Logger::log('Directory is empty. This shouldn\'t happen.', Core\Logger::DEBUG);
1214 if (!file_exists($directory)) {
1215 Core\Logger::log('Path "' . $directory . '" does not exist for user ' . self::getSystemUser(), Core\Logger::DEBUG);
1219 if (is_file($directory)) {
1220 Core\Logger::log('Path "' . $directory . '" is a file for user ' . self::getSystemUser(), Core\Logger::DEBUG);
1224 if (!is_dir($directory)) {
1225 Core\Logger::log('Path "' . $directory . '" is not a directory for user ' . self::getSystemUser(), Core\Logger::DEBUG);
1229 if ($check_writable && !is_writable($directory)) {
1230 Core\Logger::log('Path "' . $directory . '" is not writable for user ' . self::getSystemUser(), Core\Logger::DEBUG);
1238 * @param string $cat Config category
1239 * @param string $k Config key
1240 * @param mixed $default Default value if it isn't set
1242 * @return string Returns the value of the Config entry
1244 public function getConfigValue($cat, $k, $default = null)
1248 if ($cat === 'config') {
1249 if (isset($this->config[$k])) {
1250 $return = $this->config[$k];
1253 if (isset($this->config[$cat][$k])) {
1254 $return = $this->config[$cat][$k];
1262 * Sets a default value in the config cache. Ignores already existing keys.
1264 * @param string $cat Config category
1265 * @param string $k Config key
1266 * @param mixed $v Default value to set
1268 private function setDefaultConfigValue($cat, $k, $v)
1270 if (!isset($this->config[$cat][$k])) {
1271 $this->setConfigValue($cat, $k, $v);
1276 * Sets a value in the config cache. Accepts raw output from the config table
1278 * @param string $cat Config category
1279 * @param string $k Config key
1280 * @param mixed $v Value to set
1282 public function setConfigValue($cat, $k, $v)
1284 // Only arrays are serialized in database, so we have to unserialize sparingly
1285 $value = is_string($v) && preg_match("|^a:[0-9]+:{.*}$|s", $v) ? unserialize($v) : $v;
1287 if ($cat === 'config') {
1288 $this->config[$k] = $value;
1290 if (!isset($this->config[$cat])) {
1291 $this->config[$cat] = [];
1294 $this->config[$cat][$k] = $value;
1299 * Deletes a value from the config cache
1301 * @param string $cat Config category
1302 * @param string $k Config key
1304 public function deleteConfigValue($cat, $k)
1306 if ($cat === 'config') {
1307 if (isset($this->config[$k])) {
1308 unset($this->config[$k]);
1311 if (isset($this->config[$cat][$k])) {
1312 unset($this->config[$cat][$k]);
1319 * Retrieves a value from the user config cache
1321 * @param int $uid User Id
1322 * @param string $cat Config category
1323 * @param string $k Config key
1324 * @param mixed $default Default value if key isn't set
1326 * @return string The value of the config entry
1328 public function getPConfigValue($uid, $cat, $k, $default = null)
1332 if (isset($this->config[$uid][$cat][$k])) {
1333 $return = $this->config[$uid][$cat][$k];
1340 * Sets a value in the user config cache
1342 * Accepts raw output from the pconfig table
1344 * @param int $uid User Id
1345 * @param string $cat Config category
1346 * @param string $k Config key
1347 * @param mixed $v Value to set
1349 public function setPConfigValue($uid, $cat, $k, $v)
1351 // Only arrays are serialized in database, so we have to unserialize sparingly
1352 $value = is_string($v) && preg_match("|^a:[0-9]+:{.*}$|s", $v) ? unserialize($v) : $v;
1354 if (!isset($this->config[$uid]) || !is_array($this->config[$uid])) {
1355 $this->config[$uid] = [];
1358 if (!isset($this->config[$uid][$cat]) || !is_array($this->config[$uid][$cat])) {
1359 $this->config[$uid][$cat] = [];
1362 $this->config[$uid][$cat][$k] = $value;
1366 * Deletes a value from the user config cache
1368 * @param int $uid User Id
1369 * @param string $cat Config category
1370 * @param string $k Config key
1372 public function deletePConfigValue($uid, $cat, $k)
1374 if (isset($this->config[$uid][$cat][$k])) {
1375 unset($this->config[$uid][$cat][$k]);
1380 * Generates the site's default sender email address
1383 * @throws InternalServerErrorException
1385 public function getSenderEmailAddress()
1387 $sender_email = Core\Config::get('config', 'sender_email');
1388 if (empty($sender_email)) {
1389 $hostname = $this->getHostName();
1390 if (strpos($hostname, ':')) {
1391 $hostname = substr($hostname, 0, strpos($hostname, ':'));
1394 $sender_email = 'noreply@' . $hostname;
1397 return $sender_email;
1401 * Returns the current theme name.
1403 * @return string the name of the current theme
1404 * @throws InternalServerErrorException
1406 public function getCurrentTheme()
1408 if ($this->getMode()->isInstall()) {
1412 if (!$this->currentTheme) {
1413 $this->computeCurrentTheme();
1416 return $this->currentTheme;
1419 public function setCurrentTheme($theme)
1421 $this->currentTheme = $theme;
1425 * Computes the current theme name based on the node settings, the user settings and the device type
1429 private function computeCurrentTheme()
1431 $system_theme = Core\Config::get('system', 'theme');
1432 if (!$system_theme) {
1433 throw new Exception(Core\L10n::t('No system theme config value set.'));
1437 $this->currentTheme = $system_theme;
1439 $allowed_themes = explode(',', Core\Config::get('system', 'allowed_themes', $system_theme));
1442 // Find the theme that belongs to the user whose stuff we are looking at
1443 if ($this->profile_uid && ($this->profile_uid != local_user())) {
1444 // Allow folks to override user themes and always use their own on their own site.
1445 // This works only if the user is on the same server
1446 $user = DBA::selectFirst('user', ['theme'], ['uid' => $this->profile_uid]);
1447 if (DBA::isResult($user) && !Core\PConfig::get(local_user(), 'system', 'always_my_theme')) {
1448 $page_theme = $user['theme'];
1452 $user_theme = Core\Session::get('theme', $system_theme);
1454 // Specific mobile theme override
1455 if (($this->is_mobile || $this->is_tablet) && Core\Session::get('show-mobile', true)) {
1456 $system_mobile_theme = Core\Config::get('system', 'mobile-theme');
1457 $user_mobile_theme = Core\Session::get('mobile-theme', $system_mobile_theme);
1459 // --- means same mobile theme as desktop
1460 if (!empty($user_mobile_theme) && $user_mobile_theme !== '---') {
1461 $user_theme = $user_mobile_theme;
1466 $theme_name = $page_theme;
1468 $theme_name = $user_theme;
1472 && in_array($theme_name, $allowed_themes)
1473 && (file_exists('view/theme/' . $theme_name . '/style.css')
1474 || file_exists('view/theme/' . $theme_name . '/style.php'))
1476 $this->currentTheme = $theme_name;
1481 * @brief Return full URL to theme which is currently in effect.
1483 * Provide a sane default if nothing is chosen or the specified theme does not exist.
1486 * @throws InternalServerErrorException
1488 public function getCurrentThemeStylesheetPath()
1490 return Core\Theme::getStylesheetPath($this->getCurrentTheme());
1494 * Check if request was an AJAX (xmlhttprequest) request.
1496 * @return boolean true if it was an AJAX request
1498 public function isAjax()
1500 return $this->isAjax;
1504 * Returns the value of a argv key
1505 * TODO there are a lot of $a->argv usages in combination with defaults() which can be replaced with this method
1507 * @param int $position the position of the argument
1508 * @param mixed $default the default value if not found
1510 * @return mixed returns the value of the argument
1512 public function getArgumentValue($position, $default = '')
1514 if (array_key_exists($position, $this->argv)) {
1515 return $this->argv[$position];
1522 * Sets the base url for use in cmdline programs which don't have
1523 * $_SERVER variables
1525 public function checkURL()
1527 $url = Core\Config::get('system', 'url');
1529 // if the url isn't set or the stored url is radically different
1530 // than the currently visited url, store the current value accordingly.
1531 // "Radically different" ignores common variations such as http vs https
1532 // and www.example.com vs example.com.
1533 // We will only change the url to an ip address if there is no existing setting
1535 if (empty($url) || (!Util\Strings::compareLink($url, $this->getBaseURL())) && (!preg_match("/^(\d{1,3})\.(\d{1,3})\.(\d{1,3})\.(\d{1,3})$/", $this->getHostName()))) {
1536 Core\Config::set('system', 'url', $this->getBaseURL());
1541 * Frontend App script
1543 * The App object behaves like a container and a dispatcher at the same time, including a representation of the
1544 * request and a representation of the response.
1546 * This probably should change to limit the size of this monster method.
1548 public function runFrontend()
1550 // Missing DB connection: ERROR
1551 if ($this->getMode()->has(App\Mode::LOCALCONFIGPRESENT) && !$this->getMode()->has(App\Mode::DBAVAILABLE)) {
1552 Core\System::httpExit(500, ['title' => 'Error 500 - Internal Server Error', 'description' => 'Apologies but the website is unavailable at the moment.']);
1555 // Max Load Average reached: ERROR
1556 if ($this->isMaxProcessesReached() || $this->isMaxLoadReached()) {
1557 header('Retry-After: 120');
1558 header('Refresh: 120; url=' . $this->getBaseURL() . "/" . $this->query_string);
1560 Core\System::httpExit(503, ['title' => 'Error 503 - Service Temporarily Unavailable', 'description' => 'Core\System is currently overloaded. Please try again later.']);
1563 if (strstr($this->query_string, '.well-known/host-meta') && ($this->query_string != '.well-known/host-meta')) {
1564 Core\System::httpExit(404);
1567 if (!$this->getMode()->isInstall()) {
1568 // Force SSL redirection
1569 if (Core\Config::get('system', 'force_ssl') && ($this->getScheme() == "http")
1570 && intval(Core\Config::get('system', 'ssl_policy')) == SSL_POLICY_FULL
1571 && strpos($this->getBaseURL(), 'https://') === 0
1572 && $_SERVER['REQUEST_METHOD'] == 'GET') {
1573 header('HTTP/1.1 302 Moved Temporarily');
1574 header('Location: ' . $this->getBaseURL() . '/' . $this->query_string);
1578 Core\Session::init();
1579 Core\Hook::callAll('init_1');
1582 // Exclude the backend processes from the session management
1583 if (!$this->isBackend()) {
1584 $stamp1 = microtime(true);
1586 $this->saveTimestamp($stamp1, 'parser');
1587 Core\L10n::setSessionVariable();
1588 Core\L10n::setLangFromSession();
1591 Core\Worker::executeIfIdle();
1595 if (!empty($_GET['zrl']) && $this->getMode()->isNormal()) {
1596 $this->query_string = Model\Profile::stripZrls($this->query_string);
1597 if (!local_user()) {
1598 // Only continue when the given profile link seems valid
1599 // Valid profile links contain a path with "/profile/" and no query parameters
1600 if ((parse_url($_GET['zrl'], PHP_URL_QUERY) == "") &&
1601 strstr(parse_url($_GET['zrl'], PHP_URL_PATH), "/profile/")) {
1602 if (defaults($_SESSION, "visitor_home", "") != $_GET["zrl"]) {
1603 $_SESSION['my_url'] = $_GET['zrl'];
1604 $_SESSION['authenticated'] = 0;
1606 Model\Profile::zrlInit($this);
1608 // Someone came with an invalid parameter, maybe as a DDoS attempt
1609 // We simply stop processing here
1610 Core\Logger::log("Invalid ZRL parameter " . $_GET['zrl'], Core\Logger::DEBUG);
1611 Core\System::httpExit(403, ['title' => '403 Forbidden']);
1616 if (!empty($_GET['owt']) && $this->getMode()->isNormal()) {
1617 $token = $_GET['owt'];
1618 $this->query_string = Model\Profile::stripQueryParam($this->query_string, 'owt');
1619 Model\Profile::openWebAuthInit($token);
1622 Module\Login::sessionAuth();
1624 if (empty($_SESSION['authenticated'])) {
1625 header('X-Account-Management-Status: none');
1628 $_SESSION['sysmsg'] = defaults($_SESSION, 'sysmsg' , []);
1629 $_SESSION['sysmsg_info'] = defaults($_SESSION, 'sysmsg_info' , []);
1630 $_SESSION['last_updated'] = defaults($_SESSION, 'last_updated', []);
1633 * check_config() is responsible for running update scripts. These automatically
1634 * update the DB schema whenever we push a new one out. It also checks to see if
1635 * any addons have been added or removed and reacts accordingly.
1638 // in install mode, any url loads install module
1639 // but we need "view" module for stylesheet
1640 if ($this->getMode()->isInstall() && $this->module != 'view') {
1641 $this->module = 'install';
1642 } elseif (!$this->getMode()->has(App\Mode::MAINTENANCEDISABLED) && $this->module != 'view') {
1643 $this->module = 'maintenance';
1646 Core\Update::check(false);
1647 Core\Addon::loadAddons();
1648 Core\Hook::loadHooks();
1659 'right_aside' => '',
1664 if (strlen($this->module)) {
1665 // Compatibility with the Android Diaspora client
1666 if ($this->module == 'stream') {
1667 $this->internalRedirect('network?f=&order=post');
1670 if ($this->module == 'conversations') {
1671 $this->internalRedirect('message');
1674 if ($this->module == 'commented') {
1675 $this->internalRedirect('network?f=&order=comment');
1678 if ($this->module == 'liked') {
1679 $this->internalRedirect('network?f=&order=comment');
1682 if ($this->module == 'activity') {
1683 $this->internalRedirect('network/?f=&conv=1');
1686 if (($this->module == 'status_messages') && ($this->cmd == 'status_messages/new')) {
1687 $this->internalRedirect('bookmarklet');
1690 if (($this->module == 'user') && ($this->cmd == 'user/edit')) {
1691 $this->internalRedirect('settings');
1694 if (($this->module == 'tag_followings') && ($this->cmd == 'tag_followings/manage')) {
1695 $this->internalRedirect('search');
1698 // Compatibility with the Firefox App
1699 if (($this->module == "users") && ($this->cmd == "users/sign_in")) {
1700 $this->module = "login";
1703 $privateapps = Core\Config::get('config', 'private_addons', false);
1704 if (Core\Addon::isEnabled($this->module) && file_exists("addon/{$this->module}/{$this->module}.php")) {
1705 //Check if module is an app and if public access to apps is allowed or not
1706 if ((!local_user()) && Core\Hook::isAddonApp($this->module) && $privateapps) {
1707 info(Core\L10n::t("You must be logged in to use addons. "));
1709 include_once "addon/{$this->module}/{$this->module}.php";
1710 if (function_exists($this->module . '_module')) {
1711 LegacyModule::setModuleFile("addon/{$this->module}/{$this->module}.php");
1712 $this->module_class = 'Friendica\\LegacyModule';
1713 $this->module_loaded = true;
1718 // Controller class routing
1719 if (! $this->module_loaded && class_exists('Friendica\\Module\\' . ucfirst($this->module))) {
1720 $this->module_class = 'Friendica\\Module\\' . ucfirst($this->module);
1721 $this->module_loaded = true;
1724 /* If not, next look for a 'standard' program module in the 'mod' directory
1725 * We emulate a Module class through the LegacyModule class
1727 if (! $this->module_loaded && file_exists("mod/{$this->module}.php")) {
1728 LegacyModule::setModuleFile("mod/{$this->module}.php");
1729 $this->module_class = 'Friendica\\LegacyModule';
1730 $this->module_loaded = true;
1733 /* The URL provided does not resolve to a valid module.
1735 * On Dreamhost sites, quite often things go wrong for no apparent reason and they send us to '/internal_error.html'.
1736 * We don't like doing this, but as it occasionally accounts for 10-20% or more of all site traffic -
1737 * 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
1738 * this will often succeed and eventually do the right thing.
1740 * Otherwise we are going to emit a 404 not found.
1742 if (! $this->module_loaded) {
1743 // Stupid browser tried to pre-fetch our Javascript img template. Don't log the event or return anything - just quietly exit.
1744 if (!empty($_SERVER['QUERY_STRING']) && preg_match('/{[0-9]}/', $_SERVER['QUERY_STRING']) !== 0) {
1748 if (!empty($_SERVER['QUERY_STRING']) && ($_SERVER['QUERY_STRING'] === 'q=internal_error.html') && isset($dreamhost_error_hack)) {
1749 Core\Logger::log('index.php: dreamhost_error_hack invoked. Original URI =' . $_SERVER['REQUEST_URI']);
1750 $this->internalRedirect($_SERVER['REQUEST_URI']);
1753 Core\Logger::log('index.php: page not found: ' . $_SERVER['REQUEST_URI'] . ' ADDRESS: ' . $_SERVER['REMOTE_ADDR'] . ' QUERY: ' . $_SERVER['QUERY_STRING'], Core\Logger::DEBUG);
1755 header($_SERVER["SERVER_PROTOCOL"] . ' 404 ' . Core\L10n::t('Not Found'));
1756 $tpl = Core\Renderer::getMarkupTemplate("404.tpl");
1757 $this->page['content'] = Core\Renderer::replaceMacros($tpl, [
1758 '$message' => Core\L10n::t('Page not found.')
1765 // Initialize module that can set the current theme in the init() method, either directly or via App->profile_uid
1766 if ($this->module_loaded) {
1767 $this->page['page_title'] = $this->module;
1770 Core\Hook::callAll($this->module . '_mod_init', $placeholder);
1772 call_user_func([$this->module_class, 'init']);
1774 // "rawContent" is especially meant for technical endpoints.
1775 // This endpoint doesn't need any theme initialization or other comparable stuff.
1776 if (!$this->error) {
1777 call_user_func([$this->module_class, 'rawContent']);
1781 // Load current theme info after module has been initialized as theme could have been set in module
1782 $theme_info_file = 'view/theme/' . $this->getCurrentTheme() . '/theme.php';
1783 if (file_exists($theme_info_file)) {
1784 require_once $theme_info_file;
1787 if (function_exists(str_replace('-', '_', $this->getCurrentTheme()) . '_init')) {
1788 $func = str_replace('-', '_', $this->getCurrentTheme()) . '_init';
1792 if ($this->module_loaded) {
1793 if (! $this->error && $_SERVER['REQUEST_METHOD'] === 'POST') {
1794 Core\Hook::callAll($this->module . '_mod_post', $_POST);
1795 call_user_func([$this->module_class, 'post']);
1798 if (! $this->error) {
1799 Core\Hook::callAll($this->module . '_mod_afterpost', $placeholder);
1800 call_user_func([$this->module_class, 'afterpost']);
1803 if (! $this->error) {
1804 $arr = ['content' => $content];
1805 Core\Hook::callAll($this->module . '_mod_content', $arr);
1806 $content = $arr['content'];
1807 $arr = ['content' => call_user_func([$this->module_class, 'content'])];
1808 Core\Hook::callAll($this->module . '_mod_aftercontent', $arr);
1809 $content .= $arr['content'];
1813 // initialise content region
1814 if ($this->getMode()->isNormal()) {
1815 Core\Hook::callAll('page_content_top', $this->page['content']);
1818 $this->page['content'] .= $content;
1820 /* Create the page head after setting the language
1821 * and getting any auth credentials.
1823 * Moved initHead() and initFooter() to after
1824 * all the module functions have executed so that all
1825 * theme choices made by the modules can take effect.
1829 /* Build the page ending -- this is stuff that goes right before
1830 * the closing </body> tag
1832 $this->initFooter();
1834 /* now that we've been through the module content, see if the page reported
1835 * a permission problem and if so, a 403 response would seem to be in order.
1837 if (stristr(implode("", $_SESSION['sysmsg']), Core\L10n::t('Permission denied'))) {
1838 header($_SERVER["SERVER_PROTOCOL"] . ' 403 ' . Core\L10n::t('Permission denied.'));
1841 // Report anything which needs to be communicated in the notification area (before the main body)
1842 Core\Hook::callAll('page_end', $this->page['content']);
1844 // Add the navigation (menu) template
1845 if ($this->module != 'install' && $this->module != 'maintenance') {
1846 $this->page['htmlhead'] .= Core\Renderer::replaceMacros(Core\Renderer::getMarkupTemplate('nav_head.tpl'), []);
1847 $this->page['nav'] = Content\Nav::build($this);
1850 // Build the page - now that we have all the components
1851 if (isset($_GET["mode"]) && (($_GET["mode"] == "raw") || ($_GET["mode"] == "minimal"))) {
1852 $doc = new DOMDocument();
1854 $target = new DOMDocument();
1855 $target->loadXML("<root></root>");
1857 $content = mb_convert_encoding($this->page["content"], 'HTML-ENTITIES', "UTF-8");
1859 /// @TODO one day, kill those error-surpressing @ stuff, or PHP should ban it
1860 @$doc->loadHTML($content);
1862 $xpath = new DOMXPath($doc);
1864 $list = $xpath->query("//*[contains(@id,'tread-wrapper-')]"); /* */
1866 foreach ($list as $item) {
1867 $item = $target->importNode($item, true);
1869 // And then append it to the target
1870 $target->documentElement->appendChild($item);
1873 if ($_GET["mode"] == "raw") {
1874 header("Content-type: text/html; charset=utf-8");
1876 echo substr($target->saveHTML(), 6, -8);
1882 $page = $this->page;
1883 $profile = $this->profile;
1885 header("X-Friendica-Version: " . FRIENDICA_VERSION);
1886 header("Content-type: text/html; charset=utf-8");
1888 if (Core\Config::get('system', 'hsts') && (Core\Config::get('system', 'ssl_policy') == SSL_POLICY_FULL)) {
1889 header("Strict-Transport-Security: max-age=31536000");
1892 // Some security stuff
1893 header('X-Content-Type-Options: nosniff');
1894 header('X-XSS-Protection: 1; mode=block');
1895 header('X-Permitted-Cross-Domain-Policies: none');
1896 header('X-Frame-Options: sameorigin');
1898 // Things like embedded OSM maps don't work, when this is enabled
1899 // 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'");
1901 /* We use $_GET["mode"] for special page templates. So we will check if we have
1902 * to load another page template than the default one.
1903 * The page templates are located in /view/php/ or in the theme directory.
1905 if (isset($_GET["mode"])) {
1906 $template = Core\Theme::getPathForFile($_GET["mode"] . '.php');
1909 // If there is no page template use the default page template
1910 if (empty($template)) {
1911 $template = Core\Theme::getPathForFile("default.php");
1914 // Theme templates expect $a as an App instance
1917 // Used as is in view/php/default.php
1918 $lang = Core\L10n::getCurrentLang();
1920 /// @TODO Looks unsafe (remote-inclusion), is maybe not but Core\Theme::getPathForFile() uses file_exists() but does not escape anything
1921 require_once $template;
1925 * Redirects to another module relative to the current Friendica base.
1926 * If you want to redirect to a external URL, use System::externalRedirectTo()
1928 * @param string $toUrl The destination URL (Default is empty, which is the default page of the Friendica node)
1929 * @param bool $ssl if true, base URL will try to get called with https:// (works just for relative paths)
1931 * @throws InternalServerErrorException In Case the given URL is not relative to the Friendica node
1933 public function internalRedirect($toUrl = '', $ssl = false)
1935 if (!empty(parse_url($toUrl, PHP_URL_SCHEME))) {
1936 throw new InternalServerErrorException("'$toUrl is not a relative path, please use System::externalRedirectTo");
1939 $redirectTo = $this->getBaseURL($ssl) . '/' . ltrim($toUrl, '/');
1940 Core\System::externalRedirect($redirectTo);
1944 * Automatically redirects to relative or absolute URL
1945 * Should only be used if it isn't clear if the URL is either internal or external
1947 * @param string $toUrl The target URL
1948 * @throws InternalServerErrorException
1950 public function redirect($toUrl)
1952 if (!empty(parse_url($toUrl, PHP_URL_SCHEME))) {
1953 Core\System::externalRedirect($toUrl);
1955 $this->internalRedirect($toUrl);