7 use Detection\MobileDetect;
11 use Friendica\Database\DBA;
12 use Friendica\Network\HTTPException\InternalServerErrorException;
14 require_once 'boot.php';
15 require_once 'include/text.php';
21 * @brief Our main application structure for the life of this page.
23 * Primarily deals with the URL that got us here
24 * and tries to make some sense of it, and
25 * stores our page contents and config storage
26 * and anything else that might need to be passed around
27 * before we spit the page out.
32 public $module_loaded = false;
33 public $module_class = null;
34 public $query_string = '';
48 public $error = false;
54 public $interactive = true;
56 public $is_mobile = false;
57 public $is_tablet = false;
58 public $performance = [];
59 public $callstack = [];
60 public $theme_info = [];
62 // Allow themes to control internal parameters
63 // by changing App values in theme.php
65 public $sourcename = '';
66 public $videowidth = 425;
67 public $videoheight = 350;
68 public $force_max_items = 0;
69 public $theme_events_in_profile = true;
71 public $stylesheets = [];
72 public $footerScripts = [];
75 * @var App\Mode The Mode of the Application
80 * @var string The App base path
85 * @var string The App URL path
90 * @var bool true, if the call is from the Friendica APP, otherwise false
92 private $isFriendicaApp;
95 * @var bool true, if the call is from an backend node (f.e. worker)
100 * @var string The name of the current theme
102 private $currentTheme;
105 * @var bool check if request was an AJAX (xmlhttprequest) request
110 * Register a stylesheet file path to be included in the <head> tag of every page.
111 * Inclusion is done in App->initHead().
112 * The path can be absolute or relative to the Friendica installation base folder.
116 * @param string $path
118 public function registerStylesheet($path)
120 $url = str_replace($this->getBasePath() . DIRECTORY_SEPARATOR, '', $path);
122 $this->stylesheets[] = trim($url, '/');
126 * Register a javascript file path to be included in the <footer> tag of every page.
127 * Inclusion is done in App->initFooter().
128 * The path can be absolute or relative to the Friendica installation base folder.
132 * @param string $path
134 public function registerFooterScript($path)
136 $url = str_replace($this->getBasePath() . DIRECTORY_SEPARATOR, '', $path);
138 $this->footerScripts[] = trim($url, '/');
142 * @brief An array for all theme-controllable parameters
144 * Mostly unimplemented yet. Only options 'template_engine' and
150 'videoheight' => 350,
151 'force_max_items' => 0,
153 'template_engine' => 'smarty3',
157 * @brief An array of registered template engines ('name'=>'class name')
159 public $template_engines = [];
162 * @brief An array of instanced template engines ('name'=>'instance')
164 public $template_engine_instance = [];
179 * @brief App constructor.
181 * @param string $basePath Path to the app base folder
182 * @param bool $isBackend Whether it is used for backend or frontend (Default true=backend)
184 * @throws Exception if the Basepath is not usable
186 public function __construct($basePath, $isBackend = true)
188 if (!static::isDirectoryUsable($basePath, false)) {
189 throw new Exception('Basepath ' . $basePath . ' isn\'t usable.');
192 BaseObject::setApp($this);
194 $this->basePath = rtrim($basePath, DIRECTORY_SEPARATOR);
195 $this->checkBackend($isBackend);
196 $this->checkFriendicaApp();
198 $this->performance['start'] = microtime(true);
199 $this->performance['database'] = 0;
200 $this->performance['database_write'] = 0;
201 $this->performance['cache'] = 0;
202 $this->performance['cache_write'] = 0;
203 $this->performance['network'] = 0;
204 $this->performance['file'] = 0;
205 $this->performance['rendering'] = 0;
206 $this->performance['parser'] = 0;
207 $this->performance['marktime'] = 0;
208 $this->performance['markstart'] = microtime(true);
210 $this->callstack['database'] = [];
211 $this->callstack['database_write'] = [];
212 $this->callstack['cache'] = [];
213 $this->callstack['cache_write'] = [];
214 $this->callstack['network'] = [];
215 $this->callstack['file'] = [];
216 $this->callstack['rendering'] = [];
217 $this->callstack['parser'] = [];
219 $this->mode = new App\Mode($basePath);
225 // This has to be quite large to deal with embedded private photos
226 ini_set('pcre.backtrack_limit', 500000);
228 $this->scheme = 'http';
230 if (!empty($_SERVER['HTTPS']) ||
231 !empty($_SERVER['HTTP_FORWARDED']) && preg_match('/proto=https/', $_SERVER['HTTP_FORWARDED']) ||
232 !empty($_SERVER['HTTP_X_FORWARDED_PROTO']) && $_SERVER['HTTP_X_FORWARDED_PROTO'] == 'https' ||
233 !empty($_SERVER['HTTP_X_FORWARDED_SSL']) && $_SERVER['HTTP_X_FORWARDED_SSL'] == 'on' ||
234 !empty($_SERVER['FRONT_END_HTTPS']) && $_SERVER['FRONT_END_HTTPS'] == 'on' ||
235 !empty($_SERVER['SERVER_PORT']) && (intval($_SERVER['SERVER_PORT']) == 443) // XXX: reasonable assumption, but isn't this hardcoding too much?
237 $this->scheme = 'https';
240 if (!empty($_SERVER['SERVER_NAME'])) {
241 $this->hostname = $_SERVER['SERVER_NAME'];
243 if (!empty($_SERVER['SERVER_PORT']) && $_SERVER['SERVER_PORT'] != 80 && $_SERVER['SERVER_PORT'] != 443) {
244 $this->hostname .= ':' . $_SERVER['SERVER_PORT'];
249 get_include_path() . PATH_SEPARATOR
250 . $this->getBasePath() . DIRECTORY_SEPARATOR . 'include' . PATH_SEPARATOR
251 . $this->getBasePath(). DIRECTORY_SEPARATOR . 'library' . PATH_SEPARATOR
252 . $this->getBasePath());
254 if (!empty($_SERVER['QUERY_STRING']) && strpos($_SERVER['QUERY_STRING'], 'pagename=') === 0) {
255 $this->query_string = substr($_SERVER['QUERY_STRING'], 9);
256 } elseif (!empty($_SERVER['QUERY_STRING']) && strpos($_SERVER['QUERY_STRING'], 'q=') === 0) {
257 $this->query_string = substr($_SERVER['QUERY_STRING'], 2);
260 // removing trailing / - maybe a nginx problem
261 $this->query_string = ltrim($this->query_string, '/');
263 if (!empty($_GET['pagename'])) {
264 $this->cmd = trim($_GET['pagename'], '/\\');
265 } elseif (!empty($_GET['q'])) {
266 $this->cmd = trim($_GET['q'], '/\\');
270 $this->query_string = str_replace($this->cmd . '&', $this->cmd . '?', $this->query_string);
272 // unix style "homedir"
273 if (substr($this->cmd, 0, 1) === '~') {
274 $this->cmd = 'profile/' . substr($this->cmd, 1);
277 // Diaspora style profile url
278 if (substr($this->cmd, 0, 2) === 'u/') {
279 $this->cmd = 'profile/' . substr($this->cmd, 2);
283 * Break the URL path into C style argc/argv style arguments for our
284 * modules. Given "http://example.com/module/arg1/arg2", $this->argc
285 * will be 3 (integer) and $this->argv will contain:
291 * There will always be one argument. If provided a naked domain
292 * URL, $this->argv[0] is set to "home".
295 $this->argv = explode('/', $this->cmd);
296 $this->argc = count($this->argv);
297 if ((array_key_exists('0', $this->argv)) && strlen($this->argv[0])) {
298 $this->module = str_replace('.', '_', $this->argv[0]);
299 $this->module = str_replace('-', '_', $this->module);
302 $this->argv = ['home'];
303 $this->module = 'home';
306 // See if there is any page number information, and initialise pagination
307 $this->pager['page'] = !empty($_GET['page']) && intval($_GET['page']) > 0 ? intval($_GET['page']) : 1;
308 $this->pager['itemspage'] = 50;
309 $this->pager['start'] = ($this->pager['page'] * $this->pager['itemspage']) - $this->pager['itemspage'];
311 if ($this->pager['start'] < 0) {
312 $this->pager['start'] = 0;
314 $this->pager['total'] = 0;
316 // Detect mobile devices
317 $mobile_detect = new MobileDetect();
318 $this->is_mobile = $mobile_detect->isMobile();
319 $this->is_tablet = $mobile_detect->isTablet();
321 $this->isAjax = strtolower(defaults($_SERVER, 'HTTP_X_REQUESTED_WITH', '')) == 'xmlhttprequest';
323 // Register template engines
324 $this->registerTemplateEngine('Friendica\Render\FriendicaSmartyEngine');
328 * Returns the Mode of the Application
330 * @return App\Mode The Application Mode
332 * @throws InternalServerErrorException when the mode isn't created
334 public function getMode()
336 if (empty($this->mode)) {
337 throw new InternalServerErrorException('Mode of the Application is not defined');
344 * Reloads the whole app instance
346 public function reload()
348 // The order of the following calls is important to ensure proper initialization
349 $this->loadConfigFiles();
351 $this->loadDatabase();
353 $this->getMode()->determine($this->getBasePath());
355 $this->determineURLPath();
359 if ($this->getMode()->has(App\Mode::DBAVAILABLE)) {
360 Core\Hook::loadHooks();
362 $this->loadAddonConfig();
365 $this->loadDefaultTimezone();
369 $this->process_id = Core\System::processID('log');
373 * Load the configuration files
375 * First loads the default value for all the configuration keys, then the legacy configuration files, then the
376 * expected local.ini.php
378 private function loadConfigFiles()
380 $this->loadConfigFile($this->getBasePath() . DIRECTORY_SEPARATOR . 'config' . DIRECTORY_SEPARATOR . 'config.ini.php');
381 $this->loadConfigFile($this->getBasePath() . DIRECTORY_SEPARATOR . 'config' . DIRECTORY_SEPARATOR . 'settings.ini.php');
383 // Legacy .htconfig.php support
384 if (file_exists($this->getBasePath() . DIRECTORY_SEPARATOR . '.htpreconfig.php')) {
386 include $this->getBasePath() . DIRECTORY_SEPARATOR . '.htpreconfig.php';
389 // Legacy .htconfig.php support
390 if (file_exists($this->getBasePath() . DIRECTORY_SEPARATOR . '.htconfig.php')) {
393 include $this->getBasePath() . DIRECTORY_SEPARATOR . '.htconfig.php';
395 $this->setConfigValue('database', 'hostname', $db_host);
396 $this->setConfigValue('database', 'username', $db_user);
397 $this->setConfigValue('database', 'password', $db_pass);
398 $this->setConfigValue('database', 'database', $db_data);
399 if (isset($a->config['system']['db_charset'])) {
400 $this->setConfigValue('database', 'charset', $a->config['system']['db_charset']);
403 unset($db_host, $db_user, $db_pass, $db_data);
405 if (isset($default_timezone)) {
406 $this->setConfigValue('system', 'default_timezone', $default_timezone);
407 unset($default_timezone);
410 if (isset($pidfile)) {
411 $this->setConfigValue('system', 'pidfile', $pidfile);
416 $this->setConfigValue('system', 'language', $lang);
421 if (file_exists($this->getBasePath() . DIRECTORY_SEPARATOR . 'config' . DIRECTORY_SEPARATOR . 'local.ini.php')) {
422 $this->loadConfigFile($this->getBasePath() . DIRECTORY_SEPARATOR . 'config' . DIRECTORY_SEPARATOR . 'local.ini.php', true);
427 * Tries to load the specified configuration file into the App->config array.
428 * Doesn't overwrite previously set values by default to prevent default config files to supersede DB Config.
430 * The config format is INI and the template for configuration files is the following:
432 * <?php return <<<INI
440 * @param string $filepath
441 * @param bool $overwrite Force value overwrite if the config key already exists
444 public function loadConfigFile($filepath, $overwrite = false)
446 if (!file_exists($filepath)) {
447 throw new Exception('Error parsing non-existent config file ' . $filepath);
450 $contents = include($filepath);
452 $config = parse_ini_string($contents, true, INI_SCANNER_TYPED);
454 if ($config === false) {
455 throw new Exception('Error parsing config file ' . $filepath);
458 foreach ($config as $category => $values) {
459 foreach ($values as $key => $value) {
461 $this->setConfigValue($category, $key, $value);
463 $this->setDefaultConfigValue($category, $key, $value);
470 * Loads addons configuration files
472 * First loads all activated addons default configuration throught the load_config hook, then load the local.ini.php
473 * again to overwrite potential local addon configuration.
475 private function loadAddonConfig()
477 // Loads addons default config
478 Core\Addon::callHooks('load_config');
480 // Load the local addon config file to overwritten default addon config values
481 if (file_exists($this->getBasePath() . DIRECTORY_SEPARATOR . 'config' . DIRECTORY_SEPARATOR . 'addon.ini.php')) {
482 $this->loadConfigFile($this->getBasePath() . DIRECTORY_SEPARATOR . 'config' . DIRECTORY_SEPARATOR . 'addon.ini.php', true);
487 * Loads the default timezone
489 * Include support for legacy $default_timezone
491 * @global string $default_timezone
493 private function loadDefaultTimezone()
495 if ($this->getConfigValue('system', 'default_timezone')) {
496 $this->timezone = $this->getConfigValue('system', 'default_timezone');
498 global $default_timezone;
499 $this->timezone = !empty($default_timezone) ? $default_timezone : 'UTC';
502 if ($this->timezone) {
503 date_default_timezone_set($this->timezone);
508 * Figure out if we are running at the top of a domain or in a sub-directory and adjust accordingly
510 private function determineURLPath()
512 /* Relative script path to the web server root
513 * Not all of those $_SERVER properties can be present, so we do by inverse priority order
515 $relative_script_path = '';
516 $relative_script_path = defaults($_SERVER, 'REDIRECT_URL' , $relative_script_path);
517 $relative_script_path = defaults($_SERVER, 'REDIRECT_URI' , $relative_script_path);
518 $relative_script_path = defaults($_SERVER, 'REDIRECT_SCRIPT_URL', $relative_script_path);
519 $relative_script_path = defaults($_SERVER, 'SCRIPT_URL' , $relative_script_path);
521 $this->urlPath = $this->getConfigValue('system', 'urlpath');
523 /* $relative_script_path gives /relative/path/to/friendica/module/parameter
524 * QUERY_STRING gives pagename=module/parameter
526 * To get /relative/path/to/friendica we perform dirname() for as many levels as there are slashes in the QUERY_STRING
528 if (!empty($relative_script_path)) {
530 if (!empty($_SERVER['QUERY_STRING'])) {
531 $path = trim(dirname($relative_script_path, substr_count(trim($_SERVER['QUERY_STRING'], '/'), '/') + 1), '/');
534 $path = trim($relative_script_path, '/');
537 if ($path && $path != $this->urlPath) {
538 $this->urlPath = $path;
543 public function loadDatabase()
545 if (DBA::connected()) {
549 $db_host = $this->getConfigValue('database', 'hostname');
550 $db_user = $this->getConfigValue('database', 'username');
551 $db_pass = $this->getConfigValue('database', 'password');
552 $db_data = $this->getConfigValue('database', 'database');
553 $charset = $this->getConfigValue('database', 'charset');
555 // Use environment variables for mysql if they are set beforehand
556 if (!empty(getenv('MYSQL_HOST'))
557 && (!empty(getenv('MYSQL_USERNAME')) || !empty(getenv('MYSQL_USER')))
558 && getenv('MYSQL_PASSWORD') !== false
559 && !empty(getenv('MYSQL_DATABASE')))
561 $db_host = getenv('MYSQL_HOST');
562 if (!empty(getenv('MYSQL_PORT'))) {
563 $db_host .= ':' . getenv('MYSQL_PORT');
565 if (!empty(getenv('MYSQL_USERNAME'))) {
566 $db_user = getenv('MYSQL_USERNAME');
568 $db_user = getenv('MYSQL_USER');
570 $db_pass = (string) getenv('MYSQL_PASSWORD');
571 $db_data = getenv('MYSQL_DATABASE');
574 $stamp1 = microtime(true);
576 DBA::connect($db_host, $db_user, $db_pass, $db_data, $charset);
577 unset($db_host, $db_user, $db_pass, $db_data, $charset);
579 $this->saveTimestamp($stamp1, 'network');
583 * @brief Returns the base filesystem path of the App
585 * It first checks for the internal variable, then for DOCUMENT_ROOT and
590 public function getBasePath()
592 $basepath = $this->basePath;
595 $basepath = Core\Config::get('system', 'basepath');
598 if (!$basepath && !empty($_SERVER['DOCUMENT_ROOT'])) {
599 $basepath = $_SERVER['DOCUMENT_ROOT'];
602 if (!$basepath && !empty($_SERVER['PWD'])) {
603 $basepath = $_SERVER['PWD'];
606 return self::getRealPath($basepath);
610 * @brief Returns a normalized file path
612 * This is a wrapper for the "realpath" function.
613 * That function cannot detect the real path when some folders aren't readable.
614 * Since this could happen with some hosters we need to handle this.
616 * @param string $path The path that is about to be normalized
617 * @return string normalized path - when possible
619 public static function getRealPath($path)
621 $normalized = realpath($path);
623 if (!is_bool($normalized)) {
630 public function getScheme()
632 return $this->scheme;
636 * @brief Retrieves the Friendica instance base URL
638 * This function assembles the base URL from multiple parts:
639 * - Protocol is determined either by the request or a combination of
640 * system.ssl_policy and the $ssl parameter.
641 * - Host name is determined either by system.hostname or inferred from request
642 * - Path is inferred from SCRIPT_NAME
644 * Note: $ssl parameter value doesn't directly correlate with the resulting protocol
646 * @param bool $ssl Whether to append http or https under SSL_POLICY_SELFSIGN
647 * @return string Friendica server base URL
649 public function getBaseURL($ssl = false)
651 $scheme = $this->scheme;
653 if (Core\Config::get('system', 'ssl_policy') == SSL_POLICY_FULL) {
657 // Basically, we have $ssl = true on any links which can only be seen by a logged in user
658 // (and also the login link). Anything seen by an outsider will have it turned off.
660 if (Core\Config::get('system', 'ssl_policy') == SSL_POLICY_SELFSIGN) {
668 if (Core\Config::get('config', 'hostname') != '') {
669 $this->hostname = Core\Config::get('config', 'hostname');
672 return $scheme . '://' . $this->hostname . (!empty($this->getURLPath()) ? '/' . $this->getURLPath() : '' );
676 * @brief Initializes the baseurl components
678 * Clears the baseurl cache to prevent inconsistencies
682 public function setBaseURL($url)
684 $parsed = @parse_url($url);
687 if (!empty($parsed)) {
688 if (!empty($parsed['scheme'])) {
689 $this->scheme = $parsed['scheme'];
692 if (!empty($parsed['host'])) {
693 $hostname = $parsed['host'];
696 if (!empty($parsed['port'])) {
697 $hostname .= ':' . $parsed['port'];
699 if (!empty($parsed['path'])) {
700 $this->urlPath = trim($parsed['path'], '\\/');
703 if (file_exists($this->getBasePath() . DIRECTORY_SEPARATOR . '.htpreconfig.php')) {
704 include $this->getBasePath() . DIRECTORY_SEPARATOR . '.htpreconfig.php';
707 if (Core\Config::get('config', 'hostname') != '') {
708 $this->hostname = Core\Config::get('config', 'hostname');
711 if (!isset($this->hostname) || ($this->hostname == '')) {
712 $this->hostname = $hostname;
717 public function getHostName()
719 if (Core\Config::get('config', 'hostname') != '') {
720 $this->hostname = Core\Config::get('config', 'hostname');
723 return $this->hostname;
726 public function getURLPath()
728 return $this->urlPath;
731 public function setPagerTotal($n)
733 $this->pager['total'] = intval($n);
736 public function setPagerItemsPage($n)
738 $this->pager['itemspage'] = ((intval($n) > 0) ? intval($n) : 0);
739 $this->pager['start'] = ($this->pager['page'] * $this->pager['itemspage']) - $this->pager['itemspage'];
742 public function setPagerPage($n)
744 $this->pager['page'] = $n;
745 $this->pager['start'] = ($this->pager['page'] * $this->pager['itemspage']) - $this->pager['itemspage'];
749 * Initializes App->page['htmlhead'].
754 * - Registered stylesheets (through App->registerStylesheet())
755 * - Infinite scroll data
756 * - head.tpl template
758 public function initHead()
760 $interval = ((local_user()) ? Core\PConfig::get(local_user(), 'system', 'update_interval') : 40000);
762 // If the update is 'deactivated' set it to the highest integer number (~24 days)
764 $interval = 2147483647;
767 if ($interval < 10000) {
771 // compose the page title from the sitename and the
772 // current module called
773 if (!$this->module == '') {
774 $this->page['title'] = $this->config['sitename'] . ' (' . $this->module . ')';
776 $this->page['title'] = $this->config['sitename'];
779 if (!empty($this->theme['stylesheet'])) {
780 $stylesheet = $this->theme['stylesheet'];
782 $stylesheet = $this->getCurrentThemeStylesheetPath();
785 $this->registerStylesheet($stylesheet);
787 $shortcut_icon = Core\Config::get('system', 'shortcut_icon');
788 if ($shortcut_icon == '') {
789 $shortcut_icon = 'images/friendica-32.png';
792 $touch_icon = Core\Config::get('system', 'touch_icon');
793 if ($touch_icon == '') {
794 $touch_icon = 'images/friendica-128.png';
797 // get data wich is needed for infinite scroll on the network page
798 $infinite_scroll = infinite_scroll_data($this->module);
800 Core\Addon::callHooks('head', $this->page['htmlhead']);
802 $tpl = get_markup_template('head.tpl');
803 /* put the head template at the beginning of page['htmlhead']
804 * since the code added by the modules frequently depends on it
807 $this->page['htmlhead'] = replace_macros($tpl, [
808 '$baseurl' => $this->getBaseURL(),
809 '$local_user' => local_user(),
810 '$generator' => 'Friendica' . ' ' . FRIENDICA_VERSION,
811 '$delitem' => Core\L10n::t('Delete this item?'),
812 '$showmore' => Core\L10n::t('show more'),
813 '$showfewer' => Core\L10n::t('show fewer'),
814 '$update_interval' => $interval,
815 '$shortcut_icon' => $shortcut_icon,
816 '$touch_icon' => $touch_icon,
817 '$infinite_scroll' => $infinite_scroll,
818 '$block_public' => intval(Core\Config::get('system', 'block_public')),
819 '$stylesheets' => $this->stylesheets,
820 ]) . $this->page['htmlhead'];
824 * Initializes App->page['footer'].
827 * - Javascript homebase
828 * - Mobile toggle link
829 * - Registered footer scripts (through App->registerFooterScript())
830 * - footer.tpl template
832 public function initFooter()
834 // If you're just visiting, let javascript take you home
835 if (!empty($_SESSION['visitor_home'])) {
836 $homebase = $_SESSION['visitor_home'];
837 } elseif (local_user()) {
838 $homebase = 'profile/' . $this->user['nickname'];
841 if (isset($homebase)) {
842 $this->page['footer'] .= '<script>var homebase="' . $homebase . '";</script>' . "\n";
846 * Add a "toggle mobile" link if we're using a mobile device
848 if ($this->is_mobile || $this->is_tablet) {
849 if (isset($_SESSION['show-mobile']) && !$_SESSION['show-mobile']) {
850 $link = 'toggle_mobile?address=' . curPageURL();
852 $link = 'toggle_mobile?off=1&address=' . curPageURL();
854 $this->page['footer'] .= replace_macros(get_markup_template("toggle_mobile_footer.tpl"), [
855 '$toggle_link' => $link,
856 '$toggle_text' => Core\L10n::t('toggle mobile')
860 Core\Addon::callHooks('footer', $this->page['footer']);
862 $tpl = get_markup_template('footer.tpl');
863 $this->page['footer'] = replace_macros($tpl, [
864 '$baseurl' => $this->getBaseURL(),
865 '$footerScripts' => $this->footerScripts,
866 ]) . $this->page['footer'];
870 * @brief Removes the base url from an url. This avoids some mixed content problems.
872 * @param string $origURL
874 * @return string The cleaned url
876 public function removeBaseURL($origURL)
878 // Remove the hostname from the url if it is an internal link
879 $nurl = normalise_link($origURL);
880 $base = normalise_link($this->getBaseURL());
881 $url = str_replace($base . '/', '', $nurl);
883 // if it is an external link return the orignal value
884 if ($url == normalise_link($origURL)) {
892 * @brief Register template engine class
894 * @param string $class
896 private function registerTemplateEngine($class)
898 $v = get_class_vars($class);
899 if (!empty($v['name'])) {
901 $this->template_engines[$name] = $class;
903 echo "template engine <tt>$class</tt> cannot be registered without a name.\n";
909 * @brief Return template engine instance.
911 * If $name is not defined, return engine defined by theme,
914 * @return object Template Engine instance
916 public function getTemplateEngine()
918 $template_engine = defaults($this->theme, 'template_engine', 'smarty3');
920 if (isset($this->template_engines[$template_engine])) {
921 if (isset($this->template_engine_instance[$template_engine])) {
922 return $this->template_engine_instance[$template_engine];
924 $class = $this->template_engines[$template_engine];
926 $this->template_engine_instance[$template_engine] = $obj;
931 echo "template engine <tt>$template_engine</tt> is not registered!\n";
936 * @brief Returns the active template engine.
938 * @return string the active template engine
940 public function getActiveTemplateEngine()
942 return $this->theme['template_engine'];
946 * sets the active template engine
948 * @param string $engine the template engine (default is Smarty3)
950 public function setActiveTemplateEngine($engine = 'smarty3')
952 $this->theme['template_engine'] = $engine;
956 * Gets the right delimiter for a template engine
962 * @param string $engine The template engine (default is Smarty3)
964 * @return string the right delimiter
966 public function getTemplateLeftDelimiter($engine = 'smarty3')
968 return $this->ldelim[$engine];
972 * Gets the left delimiter for a template engine
978 * @param string $engine The template engine (default is Smarty3)
980 * @return string the left delimiter
982 public function getTemplateRightDelimiter($engine = 'smarty3')
984 return $this->rdelim[$engine];
988 * Saves a timestamp for a value - f.e. a call
989 * Necessary for profiling Friendica
991 * @param int $timestamp the Timestamp
992 * @param string $value A value to profile
994 public function saveTimestamp($timestamp, $value)
996 if (!isset($this->config['system']['profiler']) || !$this->config['system']['profiler']) {
1000 $duration = (float) (microtime(true) - $timestamp);
1002 if (!isset($this->performance[$value])) {
1003 // Prevent ugly E_NOTICE
1004 $this->performance[$value] = 0;
1007 $this->performance[$value] += (float) $duration;
1008 $this->performance['marktime'] += (float) $duration;
1010 $callstack = Core\System::callstack();
1012 if (!isset($this->callstack[$value][$callstack])) {
1013 // Prevent ugly E_NOTICE
1014 $this->callstack[$value][$callstack] = 0;
1017 $this->callstack[$value][$callstack] += (float) $duration;
1021 * Returns the current UserAgent as a String
1023 * @return string the UserAgent as a String
1025 public function getUserAgent()
1028 FRIENDICA_PLATFORM . " '" .
1029 FRIENDICA_CODENAME . "' " .
1030 FRIENDICA_VERSION . '-' .
1031 DB_UPDATE_VERSION . '; ' .
1032 $this->getBaseURL();
1036 * Checks, if the call is from the Friendica App
1039 * The friendica client has problems with the GUID in the notify. this is some workaround
1041 private function checkFriendicaApp()
1044 $this->isFriendicaApp = isset($_SERVER['HTTP_USER_AGENT']) && $_SERVER['HTTP_USER_AGENT'] == 'Apache-HttpClient/UNAVAILABLE (java 1.4)';
1048 * Is the call via the Friendica app? (not a "normale" call)
1050 * @return bool true if it's from the Friendica app
1052 public function isFriendicaApp()
1054 return $this->isFriendicaApp;
1058 * @brief Checks if the site is called via a backend process
1060 * This isn't a perfect solution. But we need this check very early.
1061 * So we cannot wait until the modules are loaded.
1063 * @param string $backend true, if the backend flag was set during App initialization
1066 private function checkBackend($backend) {
1067 static $backends = [
1089 // Check if current module is in backend or backend flag is set
1090 $this->isBackend = (in_array($this->module, $backends) || $backend || $this->isBackend);
1094 * Returns true, if the call is from a backend node (f.e. from a worker)
1096 * @return bool Is it a known backend?
1098 public function isBackend()
1100 return $this->isBackend;
1104 * @brief Checks if the maximum number of database processes is reached
1106 * @return bool Is the limit reached?
1108 public function isMaxProcessesReached()
1110 // Deactivated, needs more investigating if this check really makes sense
1114 * Commented out to suppress static analyzer issues
1116 if ($this->is_backend()) {
1117 $process = 'backend';
1118 $max_processes = Core\Config::get('system', 'max_processes_backend');
1119 if (intval($max_processes) == 0) {
1123 $process = 'frontend';
1124 $max_processes = Core\Config::get('system', 'max_processes_frontend');
1125 if (intval($max_processes) == 0) {
1126 $max_processes = 20;
1130 $processlist = DBA::processlist();
1131 if ($processlist['list'] != '') {
1132 logger('Processcheck: Processes: ' . $processlist['amount'] . ' - Processlist: ' . $processlist['list'], LOGGER_DEBUG);
1134 if ($processlist['amount'] > $max_processes) {
1135 logger('Processcheck: Maximum number of processes for ' . $process . ' tasks (' . $max_processes . ') reached.', LOGGER_DEBUG);
1144 * @brief Checks if the minimal memory is reached
1146 * @return bool Is the memory limit reached?
1148 public function isMinMemoryReached()
1150 $min_memory = Core\Config::get('system', 'min_memory', 0);
1151 if ($min_memory == 0) {
1155 if (!is_readable('/proc/meminfo')) {
1159 $memdata = explode("\n", file_get_contents('/proc/meminfo'));
1162 foreach ($memdata as $line) {
1163 $data = explode(':', $line);
1164 if (count($data) != 2) {
1167 list($key, $val) = $data;
1168 $meminfo[$key] = (int) trim(str_replace('kB', '', $val));
1169 $meminfo[$key] = (int) ($meminfo[$key] / 1024);
1172 if (!isset($meminfo['MemAvailable']) || !isset($meminfo['MemFree'])) {
1176 $free = $meminfo['MemAvailable'] + $meminfo['MemFree'];
1178 $reached = ($free < $min_memory);
1181 logger('Minimal memory reached: ' . $free . '/' . $meminfo['MemTotal'] . ' - limit ' . $min_memory, LOGGER_DEBUG);
1188 * @brief Checks if the maximum load is reached
1190 * @return bool Is the load reached?
1192 public function isMaxLoadReached()
1194 if ($this->isBackend()) {
1195 $process = 'backend';
1196 $maxsysload = intval(Core\Config::get('system', 'maxloadavg'));
1197 if ($maxsysload < 1) {
1201 $process = 'frontend';
1202 $maxsysload = intval(Core\Config::get('system', 'maxloadavg_frontend'));
1203 if ($maxsysload < 1) {
1208 $load = Core\System::currentLoad();
1210 if (intval($load) > $maxsysload) {
1211 logger('system: load ' . $load . ' for ' . $process . ' tasks (' . $maxsysload . ') too high.');
1219 * Executes a child process with 'proc_open'
1221 * @param string $command The command to execute
1222 * @param array $args Arguments to pass to the command ( [ 'key' => value, 'key2' => value2, ... ]
1224 public function proc_run($command, $args)
1226 if (!function_exists('proc_open')) {
1230 $cmdline = $this->getConfigValue('config', 'php_path', 'php') . ' ' . escapeshellarg($command);
1232 foreach ($args as $key => $value) {
1233 if (!is_null($value) && is_bool($value) && !$value) {
1237 $cmdline .= ' --' . $key;
1238 if (!is_null($value) && !is_bool($value)) {
1239 $cmdline .= ' ' . $value;
1243 if ($this->isMinMemoryReached()) {
1247 if (strtoupper(substr(PHP_OS, 0, 3)) === 'WIN') {
1248 $resource = proc_open('cmd /c start /b ' . $cmdline, [], $foo, $this->getBasePath());
1250 $resource = proc_open($cmdline . ' &', [], $foo, $this->getBasePath());
1252 if (!is_resource($resource)) {
1253 logger('We got no resource for command ' . $cmdline, LOGGER_DEBUG);
1256 proc_close($resource);
1260 * @brief Returns the system user that is executing the script
1262 * This mostly returns something like "www-data".
1264 * @return string system username
1266 private static function getSystemUser()
1268 if (!function_exists('posix_getpwuid') || !function_exists('posix_geteuid')) {
1272 $processUser = posix_getpwuid(posix_geteuid());
1273 return $processUser['name'];
1277 * @brief Checks if a given directory is usable for the system
1279 * @return boolean the directory is usable
1281 public static function isDirectoryUsable($directory, $check_writable = true)
1283 if ($directory == '') {
1284 logger('Directory is empty. This shouldn\'t happen.', LOGGER_DEBUG);
1288 if (!file_exists($directory)) {
1289 logger('Path "' . $directory . '" does not exist for user ' . self::getSystemUser(), LOGGER_DEBUG);
1293 if (is_file($directory)) {
1294 logger('Path "' . $directory . '" is a file for user ' . self::getSystemUser(), LOGGER_DEBUG);
1298 if (!is_dir($directory)) {
1299 logger('Path "' . $directory . '" is not a directory for user ' . self::getSystemUser(), LOGGER_DEBUG);
1303 if ($check_writable && !is_writable($directory)) {
1304 logger('Path "' . $directory . '" is not writable for user ' . self::getSystemUser(), LOGGER_DEBUG);
1312 * @param string $cat Config category
1313 * @param string $k Config key
1314 * @param mixed $default Default value if it isn't set
1316 * @return string Returns the value of the Config entry
1318 public function getConfigValue($cat, $k, $default = null)
1322 if ($cat === 'config') {
1323 if (isset($this->config[$k])) {
1324 $return = $this->config[$k];
1327 if (isset($this->config[$cat][$k])) {
1328 $return = $this->config[$cat][$k];
1336 * Sets a default value in the config cache. Ignores already existing keys.
1338 * @param string $cat Config category
1339 * @param string $k Config key
1340 * @param mixed $v Default value to set
1342 private function setDefaultConfigValue($cat, $k, $v)
1344 if (!isset($this->config[$cat][$k])) {
1345 $this->setConfigValue($cat, $k, $v);
1350 * Sets a value in the config cache. Accepts raw output from the config table
1352 * @param string $cat Config category
1353 * @param string $k Config key
1354 * @param mixed $v Value to set
1356 public function setConfigValue($cat, $k, $v)
1358 // Only arrays are serialized in database, so we have to unserialize sparingly
1359 $value = is_string($v) && preg_match("|^a:[0-9]+:{.*}$|s", $v) ? unserialize($v) : $v;
1361 if ($cat === 'config') {
1362 $this->config[$k] = $value;
1364 if (!isset($this->config[$cat])) {
1365 $this->config[$cat] = [];
1368 $this->config[$cat][$k] = $value;
1373 * Deletes a value from the config cache
1375 * @param string $cat Config category
1376 * @param string $k Config key
1378 public function deleteConfigValue($cat, $k)
1380 if ($cat === 'config') {
1381 if (isset($this->config[$k])) {
1382 unset($this->config[$k]);
1385 if (isset($this->config[$cat][$k])) {
1386 unset($this->config[$cat][$k]);
1393 * Retrieves a value from the user config cache
1395 * @param int $uid User Id
1396 * @param string $cat Config category
1397 * @param string $k Config key
1398 * @param mixed $default Default value if key isn't set
1400 * @return string The value of the config entry
1402 public function getPConfigValue($uid, $cat, $k, $default = null)
1406 if (isset($this->config[$uid][$cat][$k])) {
1407 $return = $this->config[$uid][$cat][$k];
1414 * Sets a value in the user config cache
1416 * Accepts raw output from the pconfig table
1418 * @param int $uid User Id
1419 * @param string $cat Config category
1420 * @param string $k Config key
1421 * @param mixed $v Value to set
1423 public function setPConfigValue($uid, $cat, $k, $v)
1425 // Only arrays are serialized in database, so we have to unserialize sparingly
1426 $value = is_string($v) && preg_match("|^a:[0-9]+:{.*}$|s", $v) ? unserialize($v) : $v;
1428 if (!isset($this->config[$uid]) || !is_array($this->config[$uid])) {
1429 $this->config[$uid] = [];
1432 if (!isset($this->config[$uid][$cat]) || !is_array($this->config[$uid][$cat])) {
1433 $this->config[$uid][$cat] = [];
1436 $this->config[$uid][$cat][$k] = $value;
1440 * Deletes a value from the user config cache
1442 * @param int $uid User Id
1443 * @param string $cat Config category
1444 * @param string $k Config key
1446 public function deletePConfigValue($uid, $cat, $k)
1448 if (isset($this->config[$uid][$cat][$k])) {
1449 unset($this->config[$uid][$cat][$k]);
1454 * Generates the site's default sender email address
1458 public function getSenderEmailAddress()
1460 $sender_email = Core\Config::get('config', 'sender_email');
1461 if (empty($sender_email)) {
1462 $hostname = $this->getHostName();
1463 if (strpos($hostname, ':')) {
1464 $hostname = substr($hostname, 0, strpos($hostname, ':'));
1467 $sender_email = 'noreply@' . $hostname;
1470 return $sender_email;
1474 * Returns the current theme name.
1476 * @return string the name of the current theme
1478 public function getCurrentTheme()
1480 if ($this->getMode()->isInstall()) {
1484 //// @TODO Compute the current theme only once (this behavior has
1485 /// already been implemented, but it didn't work well -
1486 /// https://github.com/friendica/friendica/issues/5092)
1487 $this->computeCurrentTheme();
1489 return $this->currentTheme;
1493 * Computes the current theme name based on the node settings, the user settings and the device type
1497 private function computeCurrentTheme()
1499 $system_theme = Core\Config::get('system', 'theme');
1500 if (!$system_theme) {
1501 throw new Exception(Core\L10n::t('No system theme config value set.'));
1505 $this->currentTheme = $system_theme;
1507 $allowed_themes = explode(',', Core\Config::get('system', 'allowed_themes', $system_theme));
1510 // Find the theme that belongs to the user whose stuff we are looking at
1511 if ($this->profile_uid && ($this->profile_uid != local_user())) {
1512 // Allow folks to override user themes and always use their own on their own site.
1513 // This works only if the user is on the same server
1514 $user = DBA::selectFirst('user', ['theme'], ['uid' => $this->profile_uid]);
1515 if (DBA::isResult($user) && !Core\PConfig::get(local_user(), 'system', 'always_my_theme')) {
1516 $page_theme = $user['theme'];
1520 $user_theme = Core\Session::get('theme', $system_theme);
1522 // Specific mobile theme override
1523 if (($this->is_mobile || $this->is_tablet) && Core\Session::get('show-mobile', true)) {
1524 $system_mobile_theme = Core\Config::get('system', 'mobile-theme');
1525 $user_mobile_theme = Core\Session::get('mobile-theme', $system_mobile_theme);
1527 // --- means same mobile theme as desktop
1528 if (!empty($user_mobile_theme) && $user_mobile_theme !== '---') {
1529 $user_theme = $user_mobile_theme;
1534 $theme_name = $page_theme;
1536 $theme_name = $user_theme;
1540 && in_array($theme_name, $allowed_themes)
1541 && (file_exists('view/theme/' . $theme_name . '/style.css')
1542 || file_exists('view/theme/' . $theme_name . '/style.php'))
1544 $this->currentTheme = $theme_name;
1549 * @brief Return full URL to theme which is currently in effect.
1551 * Provide a sane default if nothing is chosen or the specified theme does not exist.
1555 public function getCurrentThemeStylesheetPath()
1557 return Core\Theme::getStylesheetPath($this->getCurrentTheme());
1561 * Check if request was an AJAX (xmlhttprequest) request.
1563 * @return boolean true if it was an AJAX request
1565 public function isAjax()
1567 return $this->isAjax;
1571 * Returns the value of a argv key
1572 * TODO there are a lot of $a->argv usages in combination with defaults() which can be replaced with this method
1574 * @param int $position the position of the argument
1575 * @param mixed $default the default value if not found
1577 * @return mixed returns the value of the argument
1579 public function getArgumentValue($position, $default = '')
1581 if (array_key_exists($position, $this->argv)) {
1582 return $this->argv[$position];
1589 * Sets the base url for use in cmdline programs which don't have
1590 * $_SERVER variables
1592 public function checkURL()
1594 $url = Core\Config::get('system', 'url');
1596 // if the url isn't set or the stored url is radically different
1597 // than the currently visited url, store the current value accordingly.
1598 // "Radically different" ignores common variations such as http vs https
1599 // and www.example.com vs example.com.
1600 // We will only change the url to an ip address if there is no existing setting
1602 if (empty($url) || (!link_compare($url, $this->getBaseURL())) && (!preg_match("/^(\d{1,3})\.(\d{1,3})\.(\d{1,3})\.(\d{1,3})$/", $this->getHostName()))) {
1603 Core\Config::set('system', 'url', $this->getBaseURL());
1608 * Frontend App script
1610 * The App object behaves like a container and a dispatcher at the same time, including a representation of the
1611 * request and a representation of the response.
1613 * This probably should change to limit the size of this monster method.
1615 public function runFrontend()
1617 // Missing DB connection: ERROR
1618 if ($this->getMode()->has(App\Mode::LOCALCONFIGPRESENT) && !$this->getMode()->has(App\Mode::DBAVAILABLE)) {
1619 Core\System::httpExit(500, ['title' => 'Error 500 - Internal Server Error', 'description' => 'Apologies but the website is unavailable at the moment.']);
1622 // Max Load Average reached: ERROR
1623 if ($this->isMaxProcessesReached() || $this->isMaxLoadReached()) {
1624 header('Retry-After: 120');
1625 header('Refresh: 120; url=' . $this->getBaseURL() . "/" . $this->query_string);
1627 Core\System::httpExit(503, ['title' => 'Error 503 - Service Temporarily Unavailable', 'description' => 'Core\System is currently overloaded. Please try again later.']);
1630 if (strstr($this->query_string, '.well-known/host-meta') && ($this->query_string != '.well-known/host-meta')) {
1631 Core\System::httpExit(404);
1634 if (!$this->getMode()->isInstall()) {
1635 // Force SSL redirection
1636 if (Core\Config::get('system', 'force_ssl') && ($this->getScheme() == "http")
1637 && intval(Core\Config::get('system', 'ssl_policy')) == SSL_POLICY_FULL
1638 && strpos($this->getBaseURL(), 'https://') === 0
1639 && $_SERVER['REQUEST_METHOD'] == 'GET') {
1640 header('HTTP/1.1 302 Moved Temporarily');
1641 header('Location: ' . $this->getBaseURL() . '/' . $this->query_string);
1645 Core\Session::init();
1646 Core\Addon::callHooks('init_1');
1649 // Exclude the backend processes from the session management
1650 if (!$this->isBackend()) {
1651 $stamp1 = microtime(true);
1653 $this->saveTimestamp($stamp1, 'parser');
1654 Core\L10n::setSessionVariable();
1655 Core\L10n::setLangFromSession();
1658 Core\Worker::executeIfIdle();
1662 if (!empty($_GET['zrl']) && $this->getMode()->isNormal()) {
1663 $this->query_string = Model\Profile::stripZrls($this->query_string);
1664 if (!local_user()) {
1665 // Only continue when the given profile link seems valid
1666 // Valid profile links contain a path with "/profile/" and no query parameters
1667 if ((parse_url($_GET['zrl'], PHP_URL_QUERY) == "") &&
1668 strstr(parse_url($_GET['zrl'], PHP_URL_PATH), "/profile/")) {
1669 if (defaults($_SESSION, "visitor_home", "") != $_GET["zrl"]) {
1670 $_SESSION['my_url'] = $_GET['zrl'];
1671 $_SESSION['authenticated'] = 0;
1673 Model\Profile::zrlInit($this);
1675 // Someone came with an invalid parameter, maybe as a DDoS attempt
1676 // We simply stop processing here
1677 logger("Invalid ZRL parameter " . $_GET['zrl'], LOGGER_DEBUG);
1678 Core\System::httpExit(403, ['title' => '403 Forbidden']);
1683 if (!empty($_GET['owt']) && $this->getMode()->isNormal()) {
1684 $token = $_GET['owt'];
1685 $this->query_string = Model\Profile::stripQueryParam($this->query_string, 'owt');
1686 Model\Profile::openWebAuthInit($token);
1689 Module\Login::sessionAuth();
1691 if (empty($_SESSION['authenticated'])) {
1692 header('X-Account-Management-Status: none');
1695 $_SESSION['sysmsg'] = defaults($_SESSION, 'sysmsg' , []);
1696 $_SESSION['sysmsg_info'] = defaults($_SESSION, 'sysmsg_info' , []);
1697 $_SESSION['last_updated'] = defaults($_SESSION, 'last_updated', []);
1700 * check_config() is responsible for running update scripts. These automatically
1701 * update the DB schema whenever we push a new one out. It also checks to see if
1702 * any addons have been added or removed and reacts accordingly.
1705 // in install mode, any url loads install module
1706 // but we need "view" module for stylesheet
1707 if ($this->getMode()->isInstall() && $this->module != 'view') {
1708 $this->module = 'install';
1709 } elseif (!$this->getMode()->has(App\Mode::MAINTENANCEDISABLED) && $this->module != 'view') {
1710 $this->module = 'maintenance';
1714 Core\Addon::check();
1725 'right_aside' => '',
1730 if (strlen($this->module)) {
1731 // Compatibility with the Android Diaspora client
1732 if ($this->module == 'stream') {
1733 $this->internalRedirect('network?f=&order=post');
1736 if ($this->module == 'conversations') {
1737 $this->internalRedirect('message');
1740 if ($this->module == 'commented') {
1741 $this->internalRedirect('network?f=&order=comment');
1744 if ($this->module == 'liked') {
1745 $this->internalRedirect('network?f=&order=comment');
1748 if ($this->module == 'activity') {
1749 $this->internalRedirect('network/?f=&conv=1');
1752 if (($this->module == 'status_messages') && ($this->cmd == 'status_messages/new')) {
1753 $this->internalRedirect('bookmarklet');
1756 if (($this->module == 'user') && ($this->cmd == 'user/edit')) {
1757 $this->internalRedirect('settings');
1760 if (($this->module == 'tag_followings') && ($this->cmd == 'tag_followings/manage')) {
1761 $this->internalRedirect('search');
1764 // Compatibility with the Firefox App
1765 if (($this->module == "users") && ($this->cmd == "users/sign_in")) {
1766 $this->module = "login";
1769 $privateapps = Core\Config::get('config', 'private_addons', false);
1770 if (is_array($this->addons) && in_array($this->module, $this->addons) && file_exists("addon/{$this->module}/{$this->module}.php")) {
1771 //Check if module is an app and if public access to apps is allowed or not
1772 if ((!local_user()) && Core\Addon::isApp($this->module) && $privateapps) {
1773 info(Core\L10n::t("You must be logged in to use addons. "));
1775 include_once "addon/{$this->module}/{$this->module}.php";
1776 if (function_exists($this->module . '_module')) {
1777 LegacyModule::setModuleFile("addon/{$this->module}/{$this->module}.php");
1778 $this->module_class = 'Friendica\\LegacyModule';
1779 $this->module_loaded = true;
1784 // Controller class routing
1785 if (! $this->module_loaded && class_exists('Friendica\\Module\\' . ucfirst($this->module))) {
1786 $this->module_class = 'Friendica\\Module\\' . ucfirst($this->module);
1787 $this->module_loaded = true;
1790 /* If not, next look for a 'standard' program module in the 'mod' directory
1791 * We emulate a Module class through the LegacyModule class
1793 if (! $this->module_loaded && file_exists("mod/{$this->module}.php")) {
1794 LegacyModule::setModuleFile("mod/{$this->module}.php");
1795 $this->module_class = 'Friendica\\LegacyModule';
1796 $this->module_loaded = true;
1799 /* The URL provided does not resolve to a valid module.
1801 * On Dreamhost sites, quite often things go wrong for no apparent reason and they send us to '/internal_error.html'.
1802 * We don't like doing this, but as it occasionally accounts for 10-20% or more of all site traffic -
1803 * 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
1804 * this will often succeed and eventually do the right thing.
1806 * Otherwise we are going to emit a 404 not found.
1808 if (! $this->module_loaded) {
1809 // Stupid browser tried to pre-fetch our Javascript img template. Don't log the event or return anything - just quietly exit.
1810 if (!empty($_SERVER['QUERY_STRING']) && preg_match('/{[0-9]}/', $_SERVER['QUERY_STRING']) !== 0) {
1814 if (!empty($_SERVER['QUERY_STRING']) && ($_SERVER['QUERY_STRING'] === 'q=internal_error.html') && isset($dreamhost_error_hack)) {
1815 logger('index.php: dreamhost_error_hack invoked. Original URI =' . $_SERVER['REQUEST_URI']);
1816 $this->internalRedirect($_SERVER['REQUEST_URI']);
1819 logger('index.php: page not found: ' . $_SERVER['REQUEST_URI'] . ' ADDRESS: ' . $_SERVER['REMOTE_ADDR'] . ' QUERY: ' . $_SERVER['QUERY_STRING'], LOGGER_DEBUG);
1821 header($_SERVER["SERVER_PROTOCOL"] . ' 404 ' . Core\L10n::t('Not Found'));
1822 $tpl = get_markup_template("404.tpl");
1823 $this->page['content'] = replace_macros($tpl, [
1824 '$message' => Core\L10n::t('Page not found.')
1829 // Load current theme info
1830 $theme_info_file = 'view/theme/' . $this->getCurrentTheme() . '/theme.php';
1831 if (file_exists($theme_info_file)) {
1832 require_once $theme_info_file;
1835 // initialise content region
1836 if ($this->getMode()->isNormal()) {
1837 Core\Addon::callHooks('page_content_top', $this->page['content']);
1840 // Call module functions
1841 if ($this->module_loaded) {
1842 $this->page['page_title'] = $this->module;
1845 Core\Addon::callHooks($this->module . '_mod_init', $placeholder);
1847 call_user_func([$this->module_class, 'init']);
1849 // "rawContent" is especially meant for technical endpoints.
1850 // This endpoint doesn't need any theme initialization or other comparable stuff.
1851 if (!$this->error) {
1852 call_user_func([$this->module_class, 'rawContent']);
1855 if (function_exists(str_replace('-', '_', $this->getCurrentTheme()) . '_init')) {
1856 $func = str_replace('-', '_', $this->getCurrentTheme()) . '_init';
1860 if (! $this->error && $_SERVER['REQUEST_METHOD'] === 'POST') {
1861 Core\Addon::callHooks($this->module . '_mod_post', $_POST);
1862 call_user_func([$this->module_class, 'post']);
1865 if (! $this->error) {
1866 Core\Addon::callHooks($this->module . '_mod_afterpost', $placeholder);
1867 call_user_func([$this->module_class, 'afterpost']);
1870 if (! $this->error) {
1871 $arr = ['content' => $this->page['content']];
1872 Core\Addon::callHooks($this->module . '_mod_content', $arr);
1873 $this->page['content'] = $arr['content'];
1874 $arr = ['content' => call_user_func([$this->module_class, 'content'])];
1875 Core\Addon::callHooks($this->module . '_mod_aftercontent', $arr);
1876 $this->page['content'] .= $arr['content'];
1879 if (function_exists(str_replace('-', '_', $this->getCurrentTheme()) . '_content_loaded')) {
1880 $func = str_replace('-', '_', $this->getCurrentTheme()) . '_content_loaded';
1885 /* Create the page head after setting the language
1886 * and getting any auth credentials.
1888 * Moved initHead() and initFooter() to after
1889 * all the module functions have executed so that all
1890 * theme choices made by the modules can take effect.
1894 /* Build the page ending -- this is stuff that goes right before
1895 * the closing </body> tag
1897 $this->initFooter();
1899 /* now that we've been through the module content, see if the page reported
1900 * a permission problem and if so, a 403 response would seem to be in order.
1902 if (stristr(implode("", $_SESSION['sysmsg']), Core\L10n::t('Permission denied'))) {
1903 header($_SERVER["SERVER_PROTOCOL"] . ' 403 ' . Core\L10n::t('Permission denied.'));
1906 // Report anything which needs to be communicated in the notification area (before the main body)
1907 Core\Addon::callHooks('page_end', $this->page['content']);
1909 // Add the navigation (menu) template
1910 if ($this->module != 'install' && $this->module != 'maintenance') {
1911 $this->page['htmlhead'] .= replace_macros(get_markup_template('nav_head.tpl'), []);
1912 $this->page['nav'] = Content\Nav::build($this);
1915 // Build the page - now that we have all the components
1916 if (isset($_GET["mode"]) && (($_GET["mode"] == "raw") || ($_GET["mode"] == "minimal"))) {
1917 $doc = new DOMDocument();
1919 $target = new DOMDocument();
1920 $target->loadXML("<root></root>");
1922 $content = mb_convert_encoding($this->page["content"], 'HTML-ENTITIES', "UTF-8");
1924 /// @TODO one day, kill those error-surpressing @ stuff, or PHP should ban it
1925 @$doc->loadHTML($content);
1927 $xpath = new DOMXPath($doc);
1929 $list = $xpath->query("//*[contains(@id,'tread-wrapper-')]"); /* */
1931 foreach ($list as $item) {
1932 $item = $target->importNode($item, true);
1934 // And then append it to the target
1935 $target->documentElement->appendChild($item);
1939 if (isset($_GET["mode"]) && ($_GET["mode"] == "raw")) {
1940 header("Content-type: text/html; charset=utf-8");
1942 echo substr($target->saveHTML(), 6, -8);
1947 $page = $this->page;
1948 $profile = $this->profile;
1950 header("X-Friendica-Version: " . FRIENDICA_VERSION);
1951 header("Content-type: text/html; charset=utf-8");
1953 if (Core\Config::get('system', 'hsts') && (Core\Config::get('system', 'ssl_policy') == SSL_POLICY_FULL)) {
1954 header("Strict-Transport-Security: max-age=31536000");
1957 // Some security stuff
1958 header('X-Content-Type-Options: nosniff');
1959 header('X-XSS-Protection: 1; mode=block');
1960 header('X-Permitted-Cross-Domain-Policies: none');
1961 header('X-Frame-Options: sameorigin');
1963 // Things like embedded OSM maps don't work, when this is enabled
1964 // 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'");
1966 /* We use $_GET["mode"] for special page templates. So we will check if we have
1967 * to load another page template than the default one.
1968 * The page templates are located in /view/php/ or in the theme directory.
1970 if (isset($_GET["mode"])) {
1971 $template = Core\Theme::getPathForFile($_GET["mode"] . '.php');
1974 // If there is no page template use the default page template
1975 if (empty($template)) {
1976 $template = Core\Theme::getPathForFile("default.php");
1979 // Theme templates expect $a as an App instance
1982 /// @TODO Looks unsafe (remote-inclusion), is maybe not but Core\Theme::getPathForFile() uses file_exists() but does not escape anything
1983 require_once $template;
1987 * Redirects to another module relative to the current Friendica base.
1988 * If you want to redirect to a external URL, use System::externalRedirectTo()
1990 * @param string $toUrl The destination URL (Default is empty, which is the default page of the Friendica node)
1991 * @param bool $ssl if true, base URL will try to get called with https:// (works just for relative paths)
1993 * @throws InternalServerErrorException In Case the given URL is not relative to the Friendica node
1995 public function internalRedirect($toUrl = '', $ssl = false)
1997 if (filter_var($toUrl, FILTER_VALIDATE_URL)) {
1998 throw new InternalServerErrorException('URL is not a relative path, please use System::externalRedirectTo');
2001 $redirectTo = $this->getBaseURL($ssl) . '/' . ltrim($toUrl, '/');
2002 System::externalRedirect($redirectTo);