7 use Friendica\Core\Cache;
8 use Friendica\Core\Config;
9 use Friendica\Core\L10n;
10 use Friendica\Core\PConfig;
11 use Friendica\Core\System;
13 use Detection\MobileDetect;
17 require_once 'boot.php';
18 require_once 'include/text.php';
24 * @brief Our main application structure for the life of this page.
26 * Primarily deals with the URL that got us here
27 * and tries to make some sense of it, and
28 * stores our page contents and config storage
29 * and anything else that might need to be passed around
30 * before we spit the page out.
35 public $module_loaded = false;
36 public $module_class = null;
50 public $error = false;
55 public $install_mode = false;
62 public $interactive = true;
64 public $addons_admin = [];
67 public $is_mobile = false;
68 public $is_tablet = false;
69 public $is_friendica_app;
70 public $performance = [];
71 public $callstack = [];
72 public $theme_info = [];
73 public $backend = true;
76 // Allow themes to control internal parameters
77 // by changing App values in theme.php
79 public $sourcename = '';
80 public $videowidth = 425;
81 public $videoheight = 350;
82 public $force_max_items = 0;
83 public $theme_events_in_profile = true;
86 * @brief An array for all theme-controllable parameters
88 * Mostly unimplemented yet. Only options 'template_engine' and
95 'force_max_items' => 0,
97 'template_engine' => 'smarty3',
101 * @brief An array of registered template engines ('name'=>'class name')
103 public $template_engines = [];
106 * @brief An array of instanced template engines ('name'=>'instance')
108 public $template_engine_instance = [];
122 private $curl_content_type;
123 private $curl_headers;
127 * @brief App constructor.
129 * @param string $basepath Path to the app base folder
131 public function __construct($basepath)
133 global $default_timezone;
135 if (!static::directory_usable($basepath, false)) {
136 throw new Exception('Basepath ' . $basepath . ' isn\'t usable.');
139 $this->basepath = rtrim($basepath, DIRECTORY_SEPARATOR);
141 if (file_exists($this->basepath . DIRECTORY_SEPARATOR . '.htpreconfig.php')) {
142 include $this->basepath . DIRECTORY_SEPARATOR . '.htpreconfig.php';
145 $this->timezone = ((x($default_timezone)) ? $default_timezone : 'UTC');
147 date_default_timezone_set($this->timezone);
149 $this->performance['start'] = microtime(true);
150 $this->performance['database'] = 0;
151 $this->performance['database_write'] = 0;
152 $this->performance['cache'] = 0;
153 $this->performance['cache_write'] = 0;
154 $this->performance['network'] = 0;
155 $this->performance['file'] = 0;
156 $this->performance['rendering'] = 0;
157 $this->performance['parser'] = 0;
158 $this->performance['marktime'] = 0;
159 $this->performance['markstart'] = microtime(true);
161 $this->callstack['database'] = [];
162 $this->callstack['database_write'] = [];
163 $this->callstack['cache'] = [];
164 $this->callstack['cache_write'] = [];
165 $this->callstack['network'] = [];
166 $this->callstack['file'] = [];
167 $this->callstack['rendering'] = [];
168 $this->callstack['parser'] = [];
174 $this->query_string = '';
176 $this->process_id = uniqid('log', true);
180 $this->scheme = 'http';
182 if ((x($_SERVER, 'HTTPS') && $_SERVER['HTTPS']) ||
183 (x($_SERVER, 'HTTP_FORWARDED') && preg_match('/proto=https/', $_SERVER['HTTP_FORWARDED'])) ||
184 (x($_SERVER, 'HTTP_X_FORWARDED_PROTO') && $_SERVER['HTTP_X_FORWARDED_PROTO'] == 'https') ||
185 (x($_SERVER, 'HTTP_X_FORWARDED_SSL') && $_SERVER['HTTP_X_FORWARDED_SSL'] == 'on') ||
186 (x($_SERVER, 'FRONT_END_HTTPS') && $_SERVER['FRONT_END_HTTPS'] == 'on') ||
187 (x($_SERVER, 'SERVER_PORT') && (intval($_SERVER['SERVER_PORT']) == 443)) // XXX: reasonable assumption, but isn't this hardcoding too much?
189 $this->scheme = 'https';
192 if (x($_SERVER, 'SERVER_NAME')) {
193 $this->hostname = $_SERVER['SERVER_NAME'];
195 if (x($_SERVER, 'SERVER_PORT') && $_SERVER['SERVER_PORT'] != 80 && $_SERVER['SERVER_PORT'] != 443) {
196 $this->hostname .= ':' . $_SERVER['SERVER_PORT'];
199 * Figure out if we are running at the top of a domain
200 * or in a sub-directory and adjust accordingly
203 /// @TODO This kind of escaping breaks syntax-highlightning on CoolEdit (Midnight Commander)
204 $path = trim(dirname($_SERVER['SCRIPT_NAME']), '/\\');
205 if (isset($path) && strlen($path) && ($path != $this->path)) {
211 get_include_path() . PATH_SEPARATOR
212 . $this->basepath . DIRECTORY_SEPARATOR . 'include' . PATH_SEPARATOR
213 . $this->basepath . DIRECTORY_SEPARATOR . 'library' . PATH_SEPARATOR
216 if ((x($_SERVER, 'QUERY_STRING')) && substr($_SERVER['QUERY_STRING'], 0, 9) === 'pagename=') {
217 $this->query_string = substr($_SERVER['QUERY_STRING'], 9);
219 // removing trailing / - maybe a nginx problem
220 $this->query_string = ltrim($this->query_string, '/');
221 } elseif ((x($_SERVER, 'QUERY_STRING')) && substr($_SERVER['QUERY_STRING'], 0, 2) === 'q=') {
222 $this->query_string = substr($_SERVER['QUERY_STRING'], 2);
224 // removing trailing / - maybe a nginx problem
225 $this->query_string = ltrim($this->query_string, '/');
228 if (x($_GET, 'pagename')) {
229 $this->cmd = trim($_GET['pagename'], '/\\');
230 } elseif (x($_GET, 'q')) {
231 $this->cmd = trim($_GET['q'], '/\\');
235 $this->query_string = str_replace($this->cmd . '&', $this->cmd . '?', $this->query_string);
237 // unix style "homedir"
238 if (substr($this->cmd, 0, 1) === '~') {
239 $this->cmd = 'profile/' . substr($this->cmd, 1);
242 // Diaspora style profile url
243 if (substr($this->cmd, 0, 2) === 'u/') {
244 $this->cmd = 'profile/' . substr($this->cmd, 2);
248 * Break the URL path into C style argc/argv style arguments for our
249 * modules. Given "http://example.com/module/arg1/arg2", $this->argc
250 * will be 3 (integer) and $this->argv will contain:
256 * There will always be one argument. If provided a naked domain
257 * URL, $this->argv[0] is set to "home".
260 $this->argv = explode('/', $this->cmd);
261 $this->argc = count($this->argv);
262 if ((array_key_exists('0', $this->argv)) && strlen($this->argv[0])) {
263 $this->module = str_replace('.', '_', $this->argv[0]);
264 $this->module = str_replace('-', '_', $this->module);
267 $this->argv = ['home'];
268 $this->module = 'home';
271 // See if there is any page number information, and initialise pagination
272 $this->pager['page'] = ((x($_GET, 'page') && intval($_GET['page']) > 0) ? intval($_GET['page']) : 1);
273 $this->pager['itemspage'] = 50;
274 $this->pager['start'] = ($this->pager['page'] * $this->pager['itemspage']) - $this->pager['itemspage'];
276 if ($this->pager['start'] < 0) {
277 $this->pager['start'] = 0;
279 $this->pager['total'] = 0;
281 // Detect mobile devices
282 $mobile_detect = new MobileDetect();
283 $this->is_mobile = $mobile_detect->isMobile();
284 $this->is_tablet = $mobile_detect->isTablet();
287 $this->is_friendica_app = ($_SERVER['HTTP_USER_AGENT'] == 'Apache-HttpClient/UNAVAILABLE (java 1.4)');
289 // Register template engines
290 $this->register_template_engine('Friendica\Render\FriendicaSmartyEngine');
296 * @brief Returns the base filesystem path of the App
298 * It first checks for the internal variable, then for DOCUMENT_ROOT and
303 public function get_basepath()
305 $basepath = $this->basepath;
308 $basepath = Config::get('system', 'basepath');
311 if (!$basepath && x($_SERVER, 'DOCUMENT_ROOT')) {
312 $basepath = $_SERVER['DOCUMENT_ROOT'];
315 if (!$basepath && x($_SERVER, 'PWD')) {
316 $basepath = $_SERVER['PWD'];
319 return self::realpath($basepath);
323 * @brief Returns a normalized file path
325 * This is a wrapper for the "realpath" function.
326 * That function cannot detect the real path when some folders aren't readable.
327 * Since this could happen with some hosters we need to handle this.
329 * @param string $path The path that is about to be normalized
330 * @return string normalized path - when possible
332 public static function realpath($path)
334 $normalized = realpath($path);
336 if (!is_bool($normalized)) {
343 public function get_scheme()
345 return $this->scheme;
349 * @brief Retrieves the Friendica instance base URL
351 * This function assembles the base URL from multiple parts:
352 * - Protocol is determined either by the request or a combination of
353 * system.ssl_policy and the $ssl parameter.
354 * - Host name is determined either by system.hostname or inferred from request
355 * - Path is inferred from SCRIPT_NAME
357 * Note: $ssl parameter value doesn't directly correlate with the resulting protocol
359 * @param bool $ssl Whether to append http or https under SSL_POLICY_SELFSIGN
360 * @return string Friendica server base URL
362 public function get_baseurl($ssl = false)
364 $scheme = $this->scheme;
366 if (Config::get('system', 'ssl_policy') == SSL_POLICY_FULL) {
370 // Basically, we have $ssl = true on any links which can only be seen by a logged in user
371 // (and also the login link). Anything seen by an outsider will have it turned off.
373 if (Config::get('system', 'ssl_policy') == SSL_POLICY_SELFSIGN) {
381 if (Config::get('config', 'hostname') != '') {
382 $this->hostname = Config::get('config', 'hostname');
385 return $scheme . '://' . $this->hostname . ((isset($this->path) && strlen($this->path)) ? '/' . $this->path : '' );
389 * @brief Initializes the baseurl components
391 * Clears the baseurl cache to prevent inconsistencies
395 public function set_baseurl($url)
397 $parsed = @parse_url($url);
400 $this->scheme = $parsed['scheme'];
402 $hostname = $parsed['host'];
403 if (x($parsed, 'port')) {
404 $hostname .= ':' . $parsed['port'];
406 if (x($parsed, 'path')) {
407 $this->path = trim($parsed['path'], '\\/');
410 if (file_exists($this->basepath . DIRECTORY_SEPARATOR . '.htpreconfig.php')) {
411 include $this->basepath . DIRECTORY_SEPARATOR . '.htpreconfig.php';
414 if (Config::get('config', 'hostname') != '') {
415 $this->hostname = Config::get('config', 'hostname');
418 if (!isset($this->hostname) || ( $this->hostname == '')) {
419 $this->hostname = $hostname;
424 public function get_hostname()
426 if (Config::get('config', 'hostname') != '') {
427 $this->hostname = Config::get('config', 'hostname');
430 return $this->hostname;
433 public function get_path()
438 public function set_pager_total($n)
440 $this->pager['total'] = intval($n);
443 public function set_pager_itemspage($n)
445 $this->pager['itemspage'] = ((intval($n) > 0) ? intval($n) : 0);
446 $this->pager['start'] = ($this->pager['page'] * $this->pager['itemspage']) - $this->pager['itemspage'];
449 public function set_pager_page($n)
451 $this->pager['page'] = $n;
452 $this->pager['start'] = ($this->pager['page'] * $this->pager['itemspage']) - $this->pager['itemspage'];
455 public function init_pagehead()
457 $interval = ((local_user()) ? PConfig::get(local_user(), 'system', 'update_interval') : 40000);
459 // If the update is 'deactivated' set it to the highest integer number (~24 days)
461 $interval = 2147483647;
464 if ($interval < 10000) {
468 // compose the page title from the sitename and the
469 // current module called
470 if (!$this->module == '') {
471 $this->page['title'] = $this->config['sitename'] . ' (' . $this->module . ')';
473 $this->page['title'] = $this->config['sitename'];
476 /* put the head template at the beginning of page['htmlhead']
477 * since the code added by the modules frequently depends on it
480 if (!isset($this->page['htmlhead'])) {
481 $this->page['htmlhead'] = '';
484 // If we're using Smarty, then doing replace_macros() will replace
485 // any unrecognized variables with a blank string. Since we delay
486 // replacing $stylesheet until later, we need to replace it now
487 // with another variable name
488 if ($this->theme['template_engine'] === 'smarty3') {
489 $stylesheet = $this->get_template_ldelim('smarty3') . '$stylesheet' . $this->get_template_rdelim('smarty3');
491 $stylesheet = '$stylesheet';
494 $shortcut_icon = Config::get('system', 'shortcut_icon');
495 if ($shortcut_icon == '') {
496 $shortcut_icon = 'images/friendica-32.png';
499 $touch_icon = Config::get('system', 'touch_icon');
500 if ($touch_icon == '') {
501 $touch_icon = 'images/friendica-128.png';
504 // get data wich is needed for infinite scroll on the network page
505 $invinite_scroll = infinite_scroll_data($this->module);
507 $tpl = get_markup_template('head.tpl');
508 $this->page['htmlhead'] = replace_macros($tpl, [
509 '$baseurl' => $this->get_baseurl(),
510 '$local_user' => local_user(),
511 '$generator' => 'Friendica' . ' ' . FRIENDICA_VERSION,
512 '$delitem' => L10n::t('Delete this item?'),
513 '$showmore' => L10n::t('show more'),
514 '$showfewer' => L10n::t('show fewer'),
515 '$update_interval' => $interval,
516 '$shortcut_icon' => $shortcut_icon,
517 '$touch_icon' => $touch_icon,
518 '$stylesheet' => $stylesheet,
519 '$infinite_scroll' => $invinite_scroll,
520 ]) . $this->page['htmlhead'];
523 public function init_page_end()
525 if (!isset($this->page['end'])) {
526 $this->page['end'] = '';
528 $tpl = get_markup_template('end.tpl');
529 $this->page['end'] = replace_macros($tpl, [
530 '$baseurl' => $this->get_baseurl()
531 ]) . $this->page['end'];
534 public function set_curl_code($code)
536 $this->curl_code = $code;
539 public function get_curl_code()
541 return $this->curl_code;
544 public function set_curl_content_type($content_type)
546 $this->curl_content_type = $content_type;
549 public function get_curl_content_type()
551 return $this->curl_content_type;
554 public function set_curl_headers($headers)
556 $this->curl_headers = $headers;
559 public function get_curl_headers()
561 return $this->curl_headers;
565 * @brief Removes the base url from an url. This avoids some mixed content problems.
567 * @param string $orig_url
569 * @return string The cleaned url
571 public function remove_baseurl($orig_url)
573 // Remove the hostname from the url if it is an internal link
574 $nurl = normalise_link($orig_url);
575 $base = normalise_link($this->get_baseurl());
576 $url = str_replace($base . '/', '', $nurl);
578 // if it is an external link return the orignal value
579 if ($url == normalise_link($orig_url)) {
587 * @brief Register template engine class
589 * @param string $class
591 private function register_template_engine($class)
593 $v = get_class_vars($class);
596 $this->template_engines[$name] = $class;
598 echo "template engine <tt>$class</tt> cannot be registered without a name.\n";
604 * @brief Return template engine instance.
606 * If $name is not defined, return engine defined by theme,
609 * @return object Template Engine instance
611 public function template_engine()
613 $template_engine = 'smarty3';
614 if (x($this->theme, 'template_engine')) {
615 $template_engine = $this->theme['template_engine'];
618 if (isset($this->template_engines[$template_engine])) {
619 if (isset($this->template_engine_instance[$template_engine])) {
620 return $this->template_engine_instance[$template_engine];
622 $class = $this->template_engines[$template_engine];
624 $this->template_engine_instance[$template_engine] = $obj;
629 echo "template engine <tt>$template_engine</tt> is not registered!\n";
634 * @brief Returns the active template engine.
638 public function get_template_engine()
640 return $this->theme['template_engine'];
643 public function set_template_engine($engine = 'smarty3')
645 $this->theme['template_engine'] = $engine;
648 public function get_template_ldelim($engine = 'smarty3')
650 return $this->ldelim[$engine];
653 public function get_template_rdelim($engine = 'smarty3')
655 return $this->rdelim[$engine];
658 public function save_timestamp($stamp, $value)
660 if (!isset($this->config['system']['profiler']) || !$this->config['system']['profiler']) {
664 $duration = (float) (microtime(true) - $stamp);
666 if (!isset($this->performance[$value])) {
667 // Prevent ugly E_NOTICE
668 $this->performance[$value] = 0;
671 $this->performance[$value] += (float) $duration;
672 $this->performance['marktime'] += (float) $duration;
674 $callstack = System::callstack();
676 if (!isset($this->callstack[$value][$callstack])) {
677 // Prevent ugly E_NOTICE
678 $this->callstack[$value][$callstack] = 0;
681 $this->callstack[$value][$callstack] += (float) $duration;
684 public function get_useragent()
687 FRIENDICA_PLATFORM . " '" .
688 FRIENDICA_CODENAME . "' " .
689 FRIENDICA_VERSION . '-' .
690 DB_UPDATE_VERSION . '; ' .
691 $this->get_baseurl();
694 public function is_friendica_app()
696 return $this->is_friendica_app;
700 * @brief Checks if the site is called via a backend process
702 * This isn't a perfect solution. But we need this check very early.
703 * So we cannot wait until the modules are loaded.
705 * @return bool Is it a known backend?
707 public function is_backend()
731 // Check if current module is in backend or backend flag is set
732 return (in_array($this->module, $backends) || $this->backend);
736 * @brief Checks if the maximum number of database processes is reached
738 * @return bool Is the limit reached?
740 public function max_processes_reached()
742 // Deactivated, needs more investigating if this check really makes sense
746 * Commented out to suppress static analyzer issues
748 if ($this->is_backend()) {
749 $process = 'backend';
750 $max_processes = Config::get('system', 'max_processes_backend');
751 if (intval($max_processes) == 0) {
755 $process = 'frontend';
756 $max_processes = Config::get('system', 'max_processes_frontend');
757 if (intval($max_processes) == 0) {
762 $processlist = DBM::processlist();
763 if ($processlist['list'] != '') {
764 logger('Processcheck: Processes: ' . $processlist['amount'] . ' - Processlist: ' . $processlist['list'], LOGGER_DEBUG);
766 if ($processlist['amount'] > $max_processes) {
767 logger('Processcheck: Maximum number of processes for ' . $process . ' tasks (' . $max_processes . ') reached.', LOGGER_DEBUG);
776 * @brief Checks if the minimal memory is reached
778 * @return bool Is the memory limit reached?
780 public function min_memory_reached()
782 $min_memory = Config::get('system', 'min_memory', 0);
783 if ($min_memory == 0) {
787 if (!is_readable('/proc/meminfo')) {
791 $memdata = explode("\n", file_get_contents('/proc/meminfo'));
794 foreach ($memdata as $line) {
795 list($key, $val) = explode(':', $line);
796 $meminfo[$key] = (int) trim(str_replace('kB', '', $val));
797 $meminfo[$key] = (int) ($meminfo[$key] / 1024);
800 if (!isset($meminfo['MemAvailable']) || !isset($meminfo['MemFree'])) {
804 $free = $meminfo['MemAvailable'] + $meminfo['MemFree'];
806 $reached = ($free < $min_memory);
809 logger('Minimal memory reached: ' . $free . '/' . $meminfo['MemTotal'] . ' - limit ' . $min_memory, LOGGER_DEBUG);
816 * @brief Checks if the maximum load is reached
818 * @return bool Is the load reached?
820 public function maxload_reached()
822 if ($this->is_backend()) {
823 $process = 'backend';
824 $maxsysload = intval(Config::get('system', 'maxloadavg'));
825 if ($maxsysload < 1) {
829 $process = 'frontend';
830 $maxsysload = intval(Config::get('system', 'maxloadavg_frontend'));
831 if ($maxsysload < 1) {
836 $load = current_load();
838 if (intval($load) > $maxsysload) {
839 logger('system: load ' . $load . ' for ' . $process . ' tasks (' . $maxsysload . ') too high.');
846 public function proc_run($args)
848 if (!function_exists('proc_open')) {
852 // If the last worker fork was less than 2 seconds before then don't fork another one.
853 // This should prevent the forking of masses of workers.
854 $cachekey = 'app:proc_run:started';
855 $result = Cache::get($cachekey);
857 if (!is_null($result) && ( time() - $result) < 2) {
861 // Set the timestamp of the last proc_run
862 Cache::set($cachekey, time(), CACHE_MINUTE);
864 array_unshift($args, ((x($this->config, 'php_path')) && (strlen($this->config['php_path'])) ? $this->config['php_path'] : 'php'));
866 for ($x = 0; $x < count($args); $x ++) {
867 $args[$x] = escapeshellarg($args[$x]);
870 $cmdline = implode(' ', $args);
872 if ($this->min_memory_reached()) {
876 if (Config::get('system', 'proc_windows')) {
877 $resource = proc_open('cmd /c start /b ' . $cmdline, [], $foo, $this->get_basepath());
879 $resource = proc_open($cmdline . ' &', [], $foo, $this->get_basepath());
881 if (!is_resource($resource)) {
882 logger('We got no resource for command ' . $cmdline, LOGGER_DEBUG);
885 proc_close($resource);
889 * @brief Returns the system user that is executing the script
891 * This mostly returns something like "www-data".
893 * @return string system username
895 private static function systemuser()
897 if (!function_exists('posix_getpwuid') || !function_exists('posix_geteuid')) {
901 $processUser = posix_getpwuid(posix_geteuid());
902 return $processUser['name'];
906 * @brief Checks if a given directory is usable for the system
908 * @return boolean the directory is usable
910 public static function directory_usable($directory, $check_writable = true)
912 if ($directory == '') {
913 logger('Directory is empty. This shouldn\'t happen.', LOGGER_DEBUG);
917 if (!file_exists($directory)) {
918 logger('Path "' . $directory . '" does not exist for user ' . self::systemuser(), LOGGER_DEBUG);
922 if (is_file($directory)) {
923 logger('Path "' . $directory . '" is a file for user ' . self::systemuser(), LOGGER_DEBUG);
927 if (!is_dir($directory)) {
928 logger('Path "' . $directory . '" is not a directory for user ' . self::systemuser(), LOGGER_DEBUG);
932 if ($check_writable && !is_writable($directory)) {
933 logger('Path "' . $directory . '" is not writable for user ' . self::systemuser(), LOGGER_DEBUG);
941 * @param string $cat Config category
942 * @param string $k Config key
943 * @param mixed $default Default value if it isn't set
945 public function getConfigValue($cat, $k, $default = null)
949 if ($cat === 'config') {
950 if (isset($this->config[$k])) {
951 $return = $this->config[$k];
954 if (isset($this->config[$cat][$k])) {
955 $return = $this->config[$cat][$k];
963 * Sets a value in the config cache. Accepts raw output from the config table
965 * @param string $cat Config category
966 * @param string $k Config key
967 * @param mixed $v Value to set
969 public function setConfigValue($cat, $k, $v)
971 // Only arrays are serialized in database, so we have to unserialize sparingly
972 $value = is_string($v) && preg_match("|^a:[0-9]+:{.*}$|s", $v) ? unserialize($v) : $v;
974 if ($cat === 'config') {
975 $this->config[$k] = $value;
977 $this->config[$cat][$k] = $value;
982 * Deletes a value from the config cache
984 * @param string $cat Config category
985 * @param string $k Config key
987 public function deleteConfigValue($cat, $k)
989 if ($cat === 'config') {
990 if (isset($this->config[$k])) {
991 unset($this->config[$k]);
994 if (isset($this->config[$cat][$k])) {
995 unset($this->config[$cat][$k]);
1002 * Retrieves a value from the user config cache
1004 * @param int $uid User Id
1005 * @param string $cat Config category
1006 * @param string $k Config key
1007 * @param mixed $default Default value if key isn't set
1009 public function getPConfigValue($uid, $cat, $k, $default = null)
1013 if (isset($this->config[$uid][$cat][$k])) {
1014 $return = $this->config[$uid][$cat][$k];
1021 * Sets a value in the user config cache
1023 * Accepts raw output from the pconfig table
1025 * @param int $uid User Id
1026 * @param string $cat Config category
1027 * @param string $k Config key
1028 * @param mixed $v Value to set
1030 public function setPConfigValue($uid, $cat, $k, $v)
1032 // Only arrays are serialized in database, so we have to unserialize sparingly
1033 $value = is_string($v) && preg_match("|^a:[0-9]+:{.*}$|s", $v) ? unserialize($v) : $v;
1035 $this->config[$uid][$cat][$k] = $value;
1039 * Deletes a value from the user config cache
1041 * @param int $uid User Id
1042 * @param string $cat Config category
1043 * @param string $k Config key
1045 public function deletePConfigValue($uid, $cat, $k)
1047 if (isset($this->config[$uid][$cat][$k])) {
1048 unset($this->config[$uid][$cat][$k]);
1053 * Generates the site's default sender email address
1057 public function getSenderEmailAddress()
1059 $sender_email = Config::get('config', 'sender_email');
1060 if (empty($sender_email)) {
1061 $hostname = $this->get_hostname();
1062 if (strpos($hostname, ':')) {
1063 $hostname = substr($hostname, 0, strpos($hostname, ':'));
1066 $sender_email = 'noreply@' . $hostname;
1069 return $sender_email;