7 use Friendica\Core\Config;
8 use Friendica\Core\L10n;
9 use Friendica\Core\PConfig;
10 use Friendica\Core\System;
11 use Friendica\Database\DBM;
14 use Detection\MobileDetect;
18 require_once 'boot.php';
19 require_once 'include/dba.php';
20 require_once 'include/text.php';
26 * @brief Our main application structure for the life of this page.
28 * Primarily deals with the URL that got us here
29 * and tries to make some sense of it, and
30 * stores our page contents and config storage
31 * and anything else that might need to be passed around
32 * before we spit the page out.
37 const MODE_LOCALCONFIGPRESENT = 1;
38 const MODE_DBAVAILABLE = 2;
39 const MODE_DBCONFIGAVAILABLE = 4;
40 const MODE_MAINTENANCEDISABLED = 8;
43 * @deprecated since version 2008.08 Use App->isInstallMode() instead to check for install mode.
45 const MODE_INSTALL = 0;
48 * @deprecated since version 2008.08 Use the precise mode constant to check for a specific capability instead.
50 const MODE_NORMAL = App::MODE_LOCALCONFIGPRESENT | App::MODE_DBAVAILABLE | App::MODE_DBCONFIGAVAILABLE | App::MODE_MAINTENANCEDISABLED;
52 public $module_loaded = false;
53 public $module_class = null;
54 public $query_string = '';
68 public $error = false;
73 public $mode = App::MODE_INSTALL;
79 public $interactive = true;
81 public $addons_admin = [];
84 public $is_mobile = false;
85 public $is_tablet = false;
86 public $is_friendica_app;
87 public $performance = [];
88 public $callstack = [];
89 public $theme_info = [];
90 public $backend = true;
93 // Allow themes to control internal parameters
94 // by changing App values in theme.php
96 public $sourcename = '';
97 public $videowidth = 425;
98 public $videoheight = 350;
99 public $force_max_items = 0;
100 public $theme_events_in_profile = true;
103 * @brief An array for all theme-controllable parameters
105 * Mostly unimplemented yet. Only options 'template_engine' and
111 'videoheight' => 350,
112 'force_max_items' => 0,
114 'template_engine' => 'smarty3',
118 * @brief An array of registered template engines ('name'=>'class name')
120 public $template_engines = [];
123 * @brief An array of instanced template engines ('name'=>'instance')
125 public $template_engine_instance = [];
139 private $curl_content_type;
140 private $curl_headers;
143 * @brief App constructor.
145 * @param string $basepath Path to the app base folder
147 public function __construct($basepath)
149 if (!static::directory_usable($basepath, false)) {
150 throw new Exception('Basepath ' . $basepath . ' isn\'t usable.');
153 BaseObject::setApp($this);
155 $this->basepath = rtrim($basepath, DIRECTORY_SEPARATOR);
157 // The order of the following calls is important to ensure proper initialization
158 $this->loadConfigFiles();
160 $this->loadDatabase();
162 $this->determineMode();
164 $this->determineUrlPath();
168 if ($this->mode & self::MODE_DBAVAILABLE) {
169 Core\Addon::loadHooks();
171 $this->loadAddonConfig();
174 $this->loadDefaultTimezone();
176 $this->performance['start'] = microtime(true);
177 $this->performance['database'] = 0;
178 $this->performance['database_write'] = 0;
179 $this->performance['cache'] = 0;
180 $this->performance['cache_write'] = 0;
181 $this->performance['network'] = 0;
182 $this->performance['file'] = 0;
183 $this->performance['rendering'] = 0;
184 $this->performance['parser'] = 0;
185 $this->performance['marktime'] = 0;
186 $this->performance['markstart'] = microtime(true);
188 $this->callstack['database'] = [];
189 $this->callstack['database_write'] = [];
190 $this->callstack['cache'] = [];
191 $this->callstack['cache_write'] = [];
192 $this->callstack['network'] = [];
193 $this->callstack['file'] = [];
194 $this->callstack['rendering'] = [];
195 $this->callstack['parser'] = [];
211 $this->process_id = System::processID('log');
215 // This has to be quite large to deal with embedded private photos
216 ini_set('pcre.backtrack_limit', 500000);
218 $this->scheme = 'http';
220 if ((x($_SERVER, 'HTTPS') && $_SERVER['HTTPS']) ||
221 (x($_SERVER, 'HTTP_FORWARDED') && preg_match('/proto=https/', $_SERVER['HTTP_FORWARDED'])) ||
222 (x($_SERVER, 'HTTP_X_FORWARDED_PROTO') && $_SERVER['HTTP_X_FORWARDED_PROTO'] == 'https') ||
223 (x($_SERVER, 'HTTP_X_FORWARDED_SSL') && $_SERVER['HTTP_X_FORWARDED_SSL'] == 'on') ||
224 (x($_SERVER, 'FRONT_END_HTTPS') && $_SERVER['FRONT_END_HTTPS'] == 'on') ||
225 (x($_SERVER, 'SERVER_PORT') && (intval($_SERVER['SERVER_PORT']) == 443)) // XXX: reasonable assumption, but isn't this hardcoding too much?
227 $this->scheme = 'https';
230 if (x($_SERVER, 'SERVER_NAME')) {
231 $this->hostname = $_SERVER['SERVER_NAME'];
233 if (x($_SERVER, 'SERVER_PORT') && $_SERVER['SERVER_PORT'] != 80 && $_SERVER['SERVER_PORT'] != 443) {
234 $this->hostname .= ':' . $_SERVER['SERVER_PORT'];
239 get_include_path() . PATH_SEPARATOR
240 . $this->basepath . DIRECTORY_SEPARATOR . 'include' . PATH_SEPARATOR
241 . $this->basepath . DIRECTORY_SEPARATOR . 'library' . PATH_SEPARATOR
244 if ((x($_SERVER, 'QUERY_STRING')) && substr($_SERVER['QUERY_STRING'], 0, 9) === 'pagename=') {
245 $this->query_string = substr($_SERVER['QUERY_STRING'], 9);
246 } elseif ((x($_SERVER, 'QUERY_STRING')) && substr($_SERVER['QUERY_STRING'], 0, 2) === 'q=') {
247 $this->query_string = substr($_SERVER['QUERY_STRING'], 2);
250 // removing trailing / - maybe a nginx problem
251 $this->query_string = ltrim($this->query_string, '/');
253 if (!empty($_GET['pagename'])) {
254 $this->cmd = trim($_GET['pagename'], '/\\');
255 } elseif (!empty($_GET['q'])) {
256 $this->cmd = trim($_GET['q'], '/\\');
260 $this->query_string = str_replace($this->cmd . '&', $this->cmd . '?', $this->query_string);
262 // unix style "homedir"
263 if (substr($this->cmd, 0, 1) === '~') {
264 $this->cmd = 'profile/' . substr($this->cmd, 1);
267 // Diaspora style profile url
268 if (substr($this->cmd, 0, 2) === 'u/') {
269 $this->cmd = 'profile/' . substr($this->cmd, 2);
273 * Break the URL path into C style argc/argv style arguments for our
274 * modules. Given "http://example.com/module/arg1/arg2", $this->argc
275 * will be 3 (integer) and $this->argv will contain:
281 * There will always be one argument. If provided a naked domain
282 * URL, $this->argv[0] is set to "home".
285 $this->argv = explode('/', $this->cmd);
286 $this->argc = count($this->argv);
287 if ((array_key_exists('0', $this->argv)) && strlen($this->argv[0])) {
288 $this->module = str_replace('.', '_', $this->argv[0]);
289 $this->module = str_replace('-', '_', $this->module);
292 $this->argv = ['home'];
293 $this->module = 'home';
296 // See if there is any page number information, and initialise pagination
297 $this->pager['page'] = ((x($_GET, 'page') && intval($_GET['page']) > 0) ? intval($_GET['page']) : 1);
298 $this->pager['itemspage'] = 50;
299 $this->pager['start'] = ($this->pager['page'] * $this->pager['itemspage']) - $this->pager['itemspage'];
301 if ($this->pager['start'] < 0) {
302 $this->pager['start'] = 0;
304 $this->pager['total'] = 0;
306 // Detect mobile devices
307 $mobile_detect = new MobileDetect();
308 $this->is_mobile = $mobile_detect->isMobile();
309 $this->is_tablet = $mobile_detect->isTablet();
312 $this->is_friendica_app = isset($_SERVER['HTTP_USER_AGENT']) && $_SERVER['HTTP_USER_AGENT'] == 'Apache-HttpClient/UNAVAILABLE (java 1.4)';
314 // Register template engines
315 $this->register_template_engine('Friendica\Render\FriendicaSmartyEngine');
319 * Load the configuration files
321 * First loads the default value for all the configuration keys, then the legacy configuration files, then the
322 * expected local.ini.php
324 private function loadConfigFiles()
326 $this->loadConfigFile($this->basepath . DIRECTORY_SEPARATOR . 'config' . DIRECTORY_SEPARATOR . 'config.ini.php');
327 $this->loadConfigFile($this->basepath . DIRECTORY_SEPARATOR . 'config' . DIRECTORY_SEPARATOR . 'settings.ini.php');
329 // Legacy .htconfig.php support
330 if (file_exists($this->basepath . DIRECTORY_SEPARATOR . '.htpreconfig.php')) {
332 include $this->basepath . DIRECTORY_SEPARATOR . '.htpreconfig.php';
335 // Legacy .htconfig.php support
336 if (file_exists($this->basepath . DIRECTORY_SEPARATOR . '.htconfig.php')) {
339 include $this->basepath . DIRECTORY_SEPARATOR . '.htconfig.php';
340 unset($db_host, $db_user, $db_pass, $db_data);
342 if (isset($default_timezone)) {
343 $this->setConfigValue('system', 'default_timezone', $default_timezone);
344 unset($default_timezone);
347 if (isset($pidfile)) {
348 $this->setConfigValue('system', 'pidfile', $pidfile);
353 if (file_exists($this->basepath . DIRECTORY_SEPARATOR . 'config' . DIRECTORY_SEPARATOR . 'local.ini.php')) {
354 $this->loadConfigFile($this->basepath . DIRECTORY_SEPARATOR . 'config' . DIRECTORY_SEPARATOR . 'local.ini.php');
359 * Tries to load the specified configuration file into the App->config array.
360 * Overwrites previously set values.
362 * The config format is INI and the template for configuration files is the following:
364 * <?php return <<<INI
372 * @param type $filepath
375 public function loadConfigFile($filepath)
377 if (!file_exists($filepath)) {
378 throw new Exception('Error parsing non-existent config file ' . $filepath);
381 $contents = include($filepath);
383 $config = parse_ini_string($contents, true, INI_SCANNER_TYPED);
385 if ($config === false) {
386 throw new Exception('Error parsing config file ' . $filepath);
389 foreach ($config as $category => $values) {
390 foreach ($values as $key => $value) {
391 $this->setConfigValue($category, $key, $value);
397 * Loads addons configuration files
399 * First loads all activated addons default configuration throught the load_config hook, then load the local.ini.php
400 * again to overwrite potential local addon configuration.
402 private function loadAddonConfig()
404 // Loads addons default config
405 Core\Addon::callHooks('load_config');
407 // Load the local addon config file to overwritten default addon config values
408 if (file_exists($this->basepath . DIRECTORY_SEPARATOR . 'config' . DIRECTORY_SEPARATOR . 'addon.ini.php')) {
409 $this->loadConfigFile($this->basepath . DIRECTORY_SEPARATOR . 'config' . DIRECTORY_SEPARATOR . 'addon.ini.php');
414 * Loads the default timezone
416 * Include support for legacy $default_timezone
418 * @global string $default_timezone
420 private function loadDefaultTimezone()
422 if ($this->getConfigValue('system', 'default_timezone')) {
423 $this->timezone = $this->getConfigValue('system', 'default_timezone');
425 global $default_timezone;
426 $this->timezone = !empty($default_timezone) ? $default_timezone : 'UTC';
429 if ($this->timezone) {
430 date_default_timezone_set($this->timezone);
435 * Figure out if we are running at the top of a domain or in a sub-directory and adjust accordingly
437 private function determineUrlPath()
439 $this->urlpath = $this->getConfigValue('system', 'urlpath');
441 /* SCRIPT_URL gives /path/to/friendica/module/parameter
442 * QUERY_STRING gives pagename=module/parameter
444 * To get /path/to/friendica we perform dirname() for as many levels as there are slashes in the QUERY_STRING
446 if (!empty($_SERVER['SCRIPT_URL'])) {
448 if (!empty($_SERVER['QUERY_STRING'])) {
449 $path = trim(dirname($_SERVER['SCRIPT_URL'], substr_count(trim($_SERVER['QUERY_STRING'], '/'), '/') + 1), '/');
452 $path = trim($_SERVER['SCRIPT_URL'], '/');
455 if ($path && $path != $this->urlpath) {
456 $this->urlpath = $path;
464 * - App::MODE_INSTALL : Either the database connection can't be established or the config table doesn't exist
465 * - App::MODE_MAINTENANCE: The maintenance mode has been set
466 * - App::MODE_NORMAL : Normal run with all features enabled
470 private function determineMode()
474 if (!file_exists($this->basepath . DIRECTORY_SEPARATOR . 'config' . DIRECTORY_SEPARATOR . 'local.ini.php')
475 && !file_exists($this->basepath . DIRECTORY_SEPARATOR . '.htconfig.php')) {
479 $this->mode |= App::MODE_LOCALCONFIGPRESENT;
481 if (!\dba::connected()) {
485 $this->mode |= App::MODE_DBAVAILABLE;
487 if (\dba::fetch_first("SHOW TABLES LIKE 'config'") === false) {
491 $this->mode |= App::MODE_DBCONFIGAVAILABLE;
493 if (Config::get('system', 'maintenance')) {
497 $this->mode |= App::MODE_MAINTENANCEDISABLED;
500 public function loadDatabase()
502 if (\dba::connected()) {
506 $db_host = $this->getConfigValue('database', 'hostname');
507 $db_user = $this->getConfigValue('database', 'username');
508 $db_pass = $this->getConfigValue('database', 'password');
509 $db_data = $this->getConfigValue('database', 'database');
510 $charset = $this->getConfigValue('database', 'charset');
512 // Use environment variables for mysql if they are set beforehand
513 if (!empty(getenv('MYSQL_HOST'))
514 && (!empty(getenv('MYSQL_USERNAME')) || !empty(getenv('MYSQL_USER')))
515 && getenv('MYSQL_PASSWORD') !== false
516 && !empty(getenv('MYSQL_DATABASE')))
518 $db_host = getenv('MYSQL_HOST');
519 if (!empty(getenv('MYSQL_PORT'))) {
520 $db_host .= ':' . getenv('MYSQL_PORT');
522 if (!empty(getenv('MYSQL_USERNAME'))) {
523 $db_user = getenv('MYSQL_USERNAME');
525 $db_user = getenv('MYSQL_USER');
527 $db_pass = (string) getenv('MYSQL_PASSWORD');
528 $db_data = getenv('MYSQL_DATABASE');
529 } elseif (file_exists($this->basepath . DIRECTORY_SEPARATOR . '.htconfig.php')) {
530 $a = new \stdClass();
531 include $this->basepath . DIRECTORY_SEPARATOR . '.htconfig.php';
532 $charset = isset($a->config["system"]["db_charset"]) ? $a->config["system"]["db_charset"] : $charset;
537 $stamp1 = microtime(true);
539 \dba::connect($db_host, $db_user, $db_pass, $db_data, $charset);
540 unset($db_host, $db_user, $db_pass, $db_data, $charset);
542 $this->save_timestamp($stamp1, "network");
546 * Install mode is when the local config file is missing or the DB schema hasn't been installed yet.
550 public function isInstallMode()
552 return !($this->mode & App::MODE_LOCALCONFIGPRESENT) || !($this->mode & App::MODE_DBCONFIGAVAILABLE);
556 * @brief Returns the base filesystem path of the App
558 * It first checks for the internal variable, then for DOCUMENT_ROOT and
563 public function get_basepath()
565 $basepath = $this->basepath;
568 $basepath = Config::get('system', 'basepath');
571 if (!$basepath && x($_SERVER, 'DOCUMENT_ROOT')) {
572 $basepath = $_SERVER['DOCUMENT_ROOT'];
575 if (!$basepath && x($_SERVER, 'PWD')) {
576 $basepath = $_SERVER['PWD'];
579 return self::realpath($basepath);
583 * @brief Returns a normalized file path
585 * This is a wrapper for the "realpath" function.
586 * That function cannot detect the real path when some folders aren't readable.
587 * Since this could happen with some hosters we need to handle this.
589 * @param string $path The path that is about to be normalized
590 * @return string normalized path - when possible
592 public static function realpath($path)
594 $normalized = realpath($path);
596 if (!is_bool($normalized)) {
603 public function get_scheme()
605 return $this->scheme;
609 * @brief Retrieves the Friendica instance base URL
611 * This function assembles the base URL from multiple parts:
612 * - Protocol is determined either by the request or a combination of
613 * system.ssl_policy and the $ssl parameter.
614 * - Host name is determined either by system.hostname or inferred from request
615 * - Path is inferred from SCRIPT_NAME
617 * Note: $ssl parameter value doesn't directly correlate with the resulting protocol
619 * @param bool $ssl Whether to append http or https under SSL_POLICY_SELFSIGN
620 * @return string Friendica server base URL
622 public function get_baseurl($ssl = false)
624 $scheme = $this->scheme;
626 if (Config::get('system', 'ssl_policy') == SSL_POLICY_FULL) {
630 // Basically, we have $ssl = true on any links which can only be seen by a logged in user
631 // (and also the login link). Anything seen by an outsider will have it turned off.
633 if (Config::get('system', 'ssl_policy') == SSL_POLICY_SELFSIGN) {
641 if (Config::get('config', 'hostname') != '') {
642 $this->hostname = Config::get('config', 'hostname');
645 return $scheme . '://' . $this->hostname . (!empty($this->urlpath) ? '/' . $this->urlpath : '' );
649 * @brief Initializes the baseurl components
651 * Clears the baseurl cache to prevent inconsistencies
655 public function set_baseurl($url)
657 $parsed = @parse_url($url);
661 if (!empty($parsed['scheme'])) {
662 $this->scheme = $parsed['scheme'];
665 if (!empty($parsed['host'])) {
666 $hostname = $parsed['host'];
669 if (x($parsed, 'port')) {
670 $hostname .= ':' . $parsed['port'];
672 if (x($parsed, 'path')) {
673 $this->urlpath = trim($parsed['path'], '\\/');
676 if (file_exists($this->basepath . DIRECTORY_SEPARATOR . '.htpreconfig.php')) {
677 include $this->basepath . DIRECTORY_SEPARATOR . '.htpreconfig.php';
680 if (Config::get('config', 'hostname') != '') {
681 $this->hostname = Config::get('config', 'hostname');
684 if (!isset($this->hostname) || ($this->hostname == '')) {
685 $this->hostname = $hostname;
690 public function get_hostname()
692 if (Config::get('config', 'hostname') != '') {
693 $this->hostname = Config::get('config', 'hostname');
696 return $this->hostname;
699 public function get_path()
701 return $this->urlpath;
704 public function set_pager_total($n)
706 $this->pager['total'] = intval($n);
709 public function set_pager_itemspage($n)
711 $this->pager['itemspage'] = ((intval($n) > 0) ? intval($n) : 0);
712 $this->pager['start'] = ($this->pager['page'] * $this->pager['itemspage']) - $this->pager['itemspage'];
715 public function set_pager_page($n)
717 $this->pager['page'] = $n;
718 $this->pager['start'] = ($this->pager['page'] * $this->pager['itemspage']) - $this->pager['itemspage'];
721 public function init_pagehead()
723 $interval = ((local_user()) ? PConfig::get(local_user(), 'system', 'update_interval') : 40000);
725 // If the update is 'deactivated' set it to the highest integer number (~24 days)
727 $interval = 2147483647;
730 if ($interval < 10000) {
734 // compose the page title from the sitename and the
735 // current module called
736 if (!$this->module == '') {
737 $this->page['title'] = $this->config['sitename'] . ' (' . $this->module . ')';
739 $this->page['title'] = $this->config['sitename'];
742 /* put the head template at the beginning of page['htmlhead']
743 * since the code added by the modules frequently depends on it
746 if (!isset($this->page['htmlhead'])) {
747 $this->page['htmlhead'] = '';
750 // If we're using Smarty, then doing replace_macros() will replace
751 // any unrecognized variables with a blank string. Since we delay
752 // replacing $stylesheet until later, we need to replace it now
753 // with another variable name
754 if ($this->theme['template_engine'] === 'smarty3') {
755 $stylesheet = $this->get_template_ldelim('smarty3') . '$stylesheet' . $this->get_template_rdelim('smarty3');
757 $stylesheet = '$stylesheet';
760 $shortcut_icon = Config::get('system', 'shortcut_icon');
761 if ($shortcut_icon == '') {
762 $shortcut_icon = 'images/friendica-32.png';
765 $touch_icon = Config::get('system', 'touch_icon');
766 if ($touch_icon == '') {
767 $touch_icon = 'images/friendica-128.png';
770 // get data wich is needed for infinite scroll on the network page
771 $invinite_scroll = infinite_scroll_data($this->module);
773 $tpl = get_markup_template('head.tpl');
774 $this->page['htmlhead'] = replace_macros($tpl, [
775 '$baseurl' => $this->get_baseurl(),
776 '$local_user' => local_user(),
777 '$generator' => 'Friendica' . ' ' . FRIENDICA_VERSION,
778 '$delitem' => L10n::t('Delete this item?'),
779 '$showmore' => L10n::t('show more'),
780 '$showfewer' => L10n::t('show fewer'),
781 '$update_interval' => $interval,
782 '$shortcut_icon' => $shortcut_icon,
783 '$touch_icon' => $touch_icon,
784 '$stylesheet' => $stylesheet,
785 '$infinite_scroll' => $invinite_scroll,
786 '$block_public' => intval(Config::get('system', 'block_public')),
787 ]) . $this->page['htmlhead'];
790 public function init_page_end()
792 if (!isset($this->page['end'])) {
793 $this->page['end'] = '';
795 $tpl = get_markup_template('end.tpl');
796 $this->page['end'] = replace_macros($tpl, [
797 '$baseurl' => $this->get_baseurl()
798 ]) . $this->page['end'];
801 public function set_curl_code($code)
803 $this->curl_code = $code;
806 public function get_curl_code()
808 return $this->curl_code;
811 public function set_curl_content_type($content_type)
813 $this->curl_content_type = $content_type;
816 public function get_curl_content_type()
818 return $this->curl_content_type;
821 public function set_curl_headers($headers)
823 $this->curl_headers = $headers;
826 public function get_curl_headers()
828 return $this->curl_headers;
832 * @brief Removes the base url from an url. This avoids some mixed content problems.
834 * @param string $orig_url
836 * @return string The cleaned url
838 public function remove_baseurl($orig_url)
840 // Remove the hostname from the url if it is an internal link
841 $nurl = normalise_link($orig_url);
842 $base = normalise_link($this->get_baseurl());
843 $url = str_replace($base . '/', '', $nurl);
845 // if it is an external link return the orignal value
846 if ($url == normalise_link($orig_url)) {
854 * @brief Register template engine class
856 * @param string $class
858 private function register_template_engine($class)
860 $v = get_class_vars($class);
863 $this->template_engines[$name] = $class;
865 echo "template engine <tt>$class</tt> cannot be registered without a name.\n";
871 * @brief Return template engine instance.
873 * If $name is not defined, return engine defined by theme,
876 * @return object Template Engine instance
878 public function template_engine()
880 $template_engine = 'smarty3';
881 if (x($this->theme, 'template_engine')) {
882 $template_engine = $this->theme['template_engine'];
885 if (isset($this->template_engines[$template_engine])) {
886 if (isset($this->template_engine_instance[$template_engine])) {
887 return $this->template_engine_instance[$template_engine];
889 $class = $this->template_engines[$template_engine];
891 $this->template_engine_instance[$template_engine] = $obj;
896 echo "template engine <tt>$template_engine</tt> is not registered!\n";
901 * @brief Returns the active template engine.
905 public function get_template_engine()
907 return $this->theme['template_engine'];
910 public function set_template_engine($engine = 'smarty3')
912 $this->theme['template_engine'] = $engine;
915 public function get_template_ldelim($engine = 'smarty3')
917 return $this->ldelim[$engine];
920 public function get_template_rdelim($engine = 'smarty3')
922 return $this->rdelim[$engine];
925 public function save_timestamp($stamp, $value)
927 if (!isset($this->config['system']['profiler']) || !$this->config['system']['profiler']) {
931 $duration = (float) (microtime(true) - $stamp);
933 if (!isset($this->performance[$value])) {
934 // Prevent ugly E_NOTICE
935 $this->performance[$value] = 0;
938 $this->performance[$value] += (float) $duration;
939 $this->performance['marktime'] += (float) $duration;
941 $callstack = System::callstack();
943 if (!isset($this->callstack[$value][$callstack])) {
944 // Prevent ugly E_NOTICE
945 $this->callstack[$value][$callstack] = 0;
948 $this->callstack[$value][$callstack] += (float) $duration;
951 public function get_useragent()
954 FRIENDICA_PLATFORM . " '" .
955 FRIENDICA_CODENAME . "' " .
956 FRIENDICA_VERSION . '-' .
957 DB_UPDATE_VERSION . '; ' .
958 $this->get_baseurl();
961 public function is_friendica_app()
963 return $this->is_friendica_app;
967 * @brief Checks if the site is called via a backend process
969 * This isn't a perfect solution. But we need this check very early.
970 * So we cannot wait until the modules are loaded.
972 * @return bool Is it a known backend?
974 public function is_backend()
998 // Check if current module is in backend or backend flag is set
999 return (in_array($this->module, $backends) || $this->backend);
1003 * @brief Checks if the maximum number of database processes is reached
1005 * @return bool Is the limit reached?
1007 public function isMaxProcessesReached()
1009 // Deactivated, needs more investigating if this check really makes sense
1013 * Commented out to suppress static analyzer issues
1015 if ($this->is_backend()) {
1016 $process = 'backend';
1017 $max_processes = Config::get('system', 'max_processes_backend');
1018 if (intval($max_processes) == 0) {
1022 $process = 'frontend';
1023 $max_processes = Config::get('system', 'max_processes_frontend');
1024 if (intval($max_processes) == 0) {
1025 $max_processes = 20;
1029 $processlist = DBM::processlist();
1030 if ($processlist['list'] != '') {
1031 logger('Processcheck: Processes: ' . $processlist['amount'] . ' - Processlist: ' . $processlist['list'], LOGGER_DEBUG);
1033 if ($processlist['amount'] > $max_processes) {
1034 logger('Processcheck: Maximum number of processes for ' . $process . ' tasks (' . $max_processes . ') reached.', LOGGER_DEBUG);
1043 * @brief Checks if the minimal memory is reached
1045 * @return bool Is the memory limit reached?
1047 public function min_memory_reached()
1049 $min_memory = Config::get('system', 'min_memory', 0);
1050 if ($min_memory == 0) {
1054 if (!is_readable('/proc/meminfo')) {
1058 $memdata = explode("\n", file_get_contents('/proc/meminfo'));
1061 foreach ($memdata as $line) {
1062 list($key, $val) = explode(':', $line);
1063 $meminfo[$key] = (int) trim(str_replace('kB', '', $val));
1064 $meminfo[$key] = (int) ($meminfo[$key] / 1024);
1067 if (!isset($meminfo['MemAvailable']) || !isset($meminfo['MemFree'])) {
1071 $free = $meminfo['MemAvailable'] + $meminfo['MemFree'];
1073 $reached = ($free < $min_memory);
1076 logger('Minimal memory reached: ' . $free . '/' . $meminfo['MemTotal'] . ' - limit ' . $min_memory, LOGGER_DEBUG);
1083 * @brief Checks if the maximum load is reached
1085 * @return bool Is the load reached?
1087 public function isMaxLoadReached()
1089 if ($this->is_backend()) {
1090 $process = 'backend';
1091 $maxsysload = intval(Config::get('system', 'maxloadavg'));
1092 if ($maxsysload < 1) {
1096 $process = 'frontend';
1097 $maxsysload = intval(Config::get('system', 'maxloadavg_frontend'));
1098 if ($maxsysload < 1) {
1103 $load = current_load();
1105 if (intval($load) > $maxsysload) {
1106 logger('system: load ' . $load . ' for ' . $process . ' tasks (' . $maxsysload . ') too high.');
1113 public function proc_run($args)
1115 if (!function_exists('proc_open')) {
1119 array_unshift($args, $this->getConfigValue('config', 'php_path', 'php'));
1121 for ($x = 0; $x < count($args); $x ++) {
1122 $args[$x] = escapeshellarg($args[$x]);
1125 $cmdline = implode(' ', $args);
1127 if ($this->min_memory_reached()) {
1131 if (strtoupper(substr(PHP_OS, 0, 3)) === 'WIN') {
1132 $resource = proc_open('cmd /c start /b ' . $cmdline, [], $foo, $this->get_basepath());
1134 $resource = proc_open($cmdline . ' &', [], $foo, $this->get_basepath());
1136 if (!is_resource($resource)) {
1137 logger('We got no resource for command ' . $cmdline, LOGGER_DEBUG);
1140 proc_close($resource);
1144 * @brief Returns the system user that is executing the script
1146 * This mostly returns something like "www-data".
1148 * @return string system username
1150 private static function systemuser()
1152 if (!function_exists('posix_getpwuid') || !function_exists('posix_geteuid')) {
1156 $processUser = posix_getpwuid(posix_geteuid());
1157 return $processUser['name'];
1161 * @brief Checks if a given directory is usable for the system
1163 * @return boolean the directory is usable
1165 public static function directory_usable($directory, $check_writable = true)
1167 if ($directory == '') {
1168 logger('Directory is empty. This shouldn\'t happen.', LOGGER_DEBUG);
1172 if (!file_exists($directory)) {
1173 logger('Path "' . $directory . '" does not exist for user ' . self::systemuser(), LOGGER_DEBUG);
1177 if (is_file($directory)) {
1178 logger('Path "' . $directory . '" is a file for user ' . self::systemuser(), LOGGER_DEBUG);
1182 if (!is_dir($directory)) {
1183 logger('Path "' . $directory . '" is not a directory for user ' . self::systemuser(), LOGGER_DEBUG);
1187 if ($check_writable && !is_writable($directory)) {
1188 logger('Path "' . $directory . '" is not writable for user ' . self::systemuser(), LOGGER_DEBUG);
1196 * @param string $cat Config category
1197 * @param string $k Config key
1198 * @param mixed $default Default value if it isn't set
1200 public function getConfigValue($cat, $k, $default = null)
1204 if ($cat === 'config') {
1205 if (isset($this->config[$k])) {
1206 $return = $this->config[$k];
1209 if (isset($this->config[$cat][$k])) {
1210 $return = $this->config[$cat][$k];
1218 * Sets a value in the config cache. Accepts raw output from the config table
1220 * @param string $cat Config category
1221 * @param string $k Config key
1222 * @param mixed $v Value to set
1224 public function setConfigValue($cat, $k, $v)
1226 // Only arrays are serialized in database, so we have to unserialize sparingly
1227 $value = is_string($v) && preg_match("|^a:[0-9]+:{.*}$|s", $v) ? unserialize($v) : $v;
1229 if ($cat === 'config') {
1230 $this->config[$k] = $value;
1232 if (!isset($this->config[$cat])) {
1233 $this->config[$cat] = [];
1236 $this->config[$cat][$k] = $value;
1241 * Deletes a value from the config cache
1243 * @param string $cat Config category
1244 * @param string $k Config key
1246 public function deleteConfigValue($cat, $k)
1248 if ($cat === 'config') {
1249 if (isset($this->config[$k])) {
1250 unset($this->config[$k]);
1253 if (isset($this->config[$cat][$k])) {
1254 unset($this->config[$cat][$k]);
1261 * Retrieves a value from the user config cache
1263 * @param int $uid User Id
1264 * @param string $cat Config category
1265 * @param string $k Config key
1266 * @param mixed $default Default value if key isn't set
1268 public function getPConfigValue($uid, $cat, $k, $default = null)
1272 if (isset($this->config[$uid][$cat][$k])) {
1273 $return = $this->config[$uid][$cat][$k];
1280 * Sets a value in the user config cache
1282 * Accepts raw output from the pconfig table
1284 * @param int $uid User Id
1285 * @param string $cat Config category
1286 * @param string $k Config key
1287 * @param mixed $v Value to set
1289 public function setPConfigValue($uid, $cat, $k, $v)
1291 // Only arrays are serialized in database, so we have to unserialize sparingly
1292 $value = is_string($v) && preg_match("|^a:[0-9]+:{.*}$|s", $v) ? unserialize($v) : $v;
1294 if (!isset($this->config[$uid])) {
1295 $this->config[$uid] = [];
1298 if (!isset($this->config[$uid][$cat])) {
1299 $this->config[$uid][$cat] = [];
1302 $this->config[$uid][$cat][$k] = $value;
1306 * Deletes a value from the user config cache
1308 * @param int $uid User Id
1309 * @param string $cat Config category
1310 * @param string $k Config key
1312 public function deletePConfigValue($uid, $cat, $k)
1314 if (isset($this->config[$uid][$cat][$k])) {
1315 unset($this->config[$uid][$cat][$k]);
1320 * Generates the site's default sender email address
1324 public function getSenderEmailAddress()
1326 $sender_email = Config::get('config', 'sender_email');
1327 if (empty($sender_email)) {
1328 $hostname = $this->get_hostname();
1329 if (strpos($hostname, ':')) {
1330 $hostname = substr($hostname, 0, strpos($hostname, ':'));
1333 $sender_email = 'noreply@' . $hostname;
1336 return $sender_email;
1340 * Returns the current theme name.
1344 public function getCurrentTheme()
1346 if ($this->isInstallMode()) {
1350 //// @TODO Compute the current theme only once (this behavior has
1351 /// already been implemented, but it didn't work well -
1352 /// https://github.com/friendica/friendica/issues/5092)
1353 $this->computeCurrentTheme();
1355 return $this->current_theme;
1359 * Computes the current theme name based on the node settings, the user settings and the device type
1363 private function computeCurrentTheme()
1365 $system_theme = Config::get('system', 'theme');
1366 if (!$system_theme) {
1367 throw new Exception(L10n::t('No system theme config value set.'));
1371 $this->current_theme = $system_theme;
1373 $allowed_themes = explode(',', Config::get('system', 'allowed_themes', $system_theme));
1376 // Find the theme that belongs to the user whose stuff we are looking at
1377 if ($this->profile_uid && ($this->profile_uid != local_user())) {
1378 // Allow folks to override user themes and always use their own on their own site.
1379 // This works only if the user is on the same server
1380 $user = dba::selectFirst('user', ['theme'], ['uid' => $this->profile_uid]);
1381 if (DBM::is_result($user) && !PConfig::get(local_user(), 'system', 'always_my_theme')) {
1382 $page_theme = $user['theme'];
1386 if (!empty($_SESSION)) {
1387 $user_theme = defaults($_SESSION, 'theme', $system_theme);
1389 $user_theme = $system_theme;
1392 // Specific mobile theme override
1393 if (($this->is_mobile || $this->is_tablet) && defaults($_SESSION, 'show-mobile', true)) {
1394 $system_mobile_theme = Config::get('system', 'mobile-theme');
1395 $user_mobile_theme = defaults($_SESSION, 'mobile-theme', $system_mobile_theme);
1397 // --- means same mobile theme as desktop
1398 if (!empty($user_mobile_theme) && $user_mobile_theme !== '---') {
1399 $user_theme = $user_mobile_theme;
1404 $theme_name = $page_theme;
1406 $theme_name = $user_theme;
1410 && in_array($theme_name, $allowed_themes)
1411 && (file_exists('view/theme/' . $theme_name . '/style.css')
1412 || file_exists('view/theme/' . $theme_name . '/style.php'))
1414 $this->current_theme = $theme_name;
1419 * @brief Return full URL to theme which is currently in effect.
1421 * Provide a sane default if nothing is chosen or the specified theme does not exist.
1425 public function getCurrentThemeStylesheetPath()
1427 return Core\Theme::getStylesheetPath($this->getCurrentTheme());