-
-}
-
-/**
- *
- * class: App
- *
- * @brief Our main application structure for the life of this page.
- *
- * Primarily deals with the URL that got us here
- * and tries to make some sense of it, and
- * stores our page contents and config storage
- * and anything else that might need to be passed around
- * before we spit the page out.
- *
- */
-class App {
-
- public $module_loaded = false;
- public $query_string;
- public $config;
- public $page;
- public $profile;
- public $profile_uid;
- public $user;
- public $cid;
- public $contact;
- public $contacts;
- public $page_contact;
- public $content;
- public $data = array();
- public $error = false;
- public $cmd;
- public $argv;
- public $argc;
- public $module;
- public $pager;
- public $strings;
- public $path;
- public $hooks;
- public $timezone;
- public $interactive = true;
- public $plugins;
- public $apps = array();
- public $identities;
- public $is_mobile = false;
- public $is_tablet = false;
- public $is_friendica_app;
- public $performance = array();
- public $callstack = array();
- public $theme_info = array();
- public $backend = true;
-
- public $nav_sel;
-
- public $category;
-
-
- // Allow themes to control internal parameters
- // by changing App values in theme.php
-
- public $sourcename = '';
- public $videowidth = 425;
- public $videoheight = 350;
- public $force_max_items = 0;
- public $theme_thread_allow = true;
- public $theme_events_in_profile = true;
-
- /**
- * @brief An array for all theme-controllable parameters
- *
- * Mostly unimplemented yet. Only options 'template_engine' and
- * beyond are used.
- */
- public $theme = array(
- 'sourcename' => '',
- 'videowidth' => 425,
- 'videoheight' => 350,
- 'force_max_items' => 0,
- 'thread_allow' => true,
- 'stylesheet' => '',
- 'template_engine' => 'smarty3',
- );
-
- /**
- * @brief An array of registered template engines ('name'=>'class name')
- */
- public $template_engines = array();
- /**
- * @brief An array of instanced template engines ('name'=>'instance')
- */
- public $template_engine_instance = array();
-
- public $process_id;
-
- private $ldelim = array(
- 'internal' => '',
- 'smarty3' => '{{'
- );
- private $rdelim = array(
- 'internal' => '',
- 'smarty3' => '}}'
- );
-
- private $scheme;
- private $hostname;
- private $db;
-
- private $curl_code;
- private $curl_content_type;
- private $curl_headers;
-
- private $cached_profile_image;
- private $cached_profile_picdate;
-
- private static $a;
-
- /**
- * @brief App constructor.
- */
- function __construct() {
-
- global $default_timezone;
-
- $hostname = "";
-
- if (file_exists(".htpreconfig.php"))
- @include(".htpreconfig.php");
-
- $this->timezone = ((x($default_timezone)) ? $default_timezone : 'UTC');
-
- date_default_timezone_set($this->timezone);
-
- $this->performance["start"] = microtime(true);
- $this->performance["database"] = 0;
- $this->performance["database_write"] = 0;
- $this->performance["network"] = 0;
- $this->performance["file"] = 0;
- $this->performance["rendering"] = 0;
- $this->performance["parser"] = 0;
- $this->performance["marktime"] = 0;
- $this->performance["markstart"] = microtime(true);
-
- $this->callstack["database"] = array();
- $this->callstack["database_write"] = array();
- $this->callstack["network"] = array();
- $this->callstack["file"] = array();
- $this->callstack["rendering"] = array();
- $this->callstack["parser"] = array();
-
- $this->config = array();
- $this->page = array();
- $this->pager= array();
-
- $this->query_string = '';
-
- $this->process_id = uniqid("log", true);
-
- startup();
-
- set_include_path(
- 'include' . PATH_SEPARATOR
- . 'library' . PATH_SEPARATOR
- . 'library/langdet' . PATH_SEPARATOR
- . '.' );
-
-
- $this->scheme = 'http';
- if((x($_SERVER,'HTTPS') && $_SERVER['HTTPS']) ||
- (x($_SERVER['HTTP_FORWARDED']) && preg_match("/proto=https/", $_SERVER['HTTP_FORWARDED'])) ||
- (x($_SERVER['HTTP_X_FORWARDED_PROTO']) && $_SERVER['HTTP_X_FORWARDED_PROTO'] == 'https') ||
- (x($_SERVER['HTTP_X_FORWARDED_SSL']) && $_SERVER['HTTP_X_FORWARDED_SSL'] == 'on') ||
- (x($_SERVER['FRONT_END_HTTPS']) && $_SERVER['FRONT_END_HTTPS'] == 'on') ||
- (x($_SERVER,'SERVER_PORT') && (intval($_SERVER['SERVER_PORT']) == 443)) // XXX: reasonable assumption, but isn't this hardcoding too much?
- ) {
- $this->scheme = 'https';
- }
-
- if(x($_SERVER,'SERVER_NAME')) {
- $this->hostname = $_SERVER['SERVER_NAME'];
-
- if(x($_SERVER,'SERVER_PORT') && $_SERVER['SERVER_PORT'] != 80 && $_SERVER['SERVER_PORT'] != 443)
- $this->hostname .= ':' . $_SERVER['SERVER_PORT'];
- /*
- * Figure out if we are running at the top of a domain
- * or in a sub-directory and adjust accordingly
- */
-
- $path = trim(dirname($_SERVER['SCRIPT_NAME']),'/\\');
- if(isset($path) && strlen($path) && ($path != $this->path))
- $this->path = $path;
- }
-
- if ($hostname != "")
- $this->hostname = $hostname;
-
- if (is_array($_SERVER["argv"]) && $_SERVER["argc"]>1 && substr(end($_SERVER["argv"]), 0, 4)=="http" ) {
- $this->set_baseurl(array_pop($_SERVER["argv"]) );
- $_SERVER["argc"] --;
- }
-
- #set_include_path("include/$this->hostname" . PATH_SEPARATOR . get_include_path());
-
- if ((x($_SERVER,'QUERY_STRING')) && substr($_SERVER['QUERY_STRING'],0,9) === "pagename=") {
- $this->query_string = substr($_SERVER['QUERY_STRING'],9);
- // removing trailing / - maybe a nginx problem
- if (substr($this->query_string, 0, 1) == "/")
- $this->query_string = substr($this->query_string, 1);
- } elseif ((x($_SERVER,'QUERY_STRING')) && substr($_SERVER['QUERY_STRING'],0,2) === "q=") {
- $this->query_string = substr($_SERVER['QUERY_STRING'],2);
- // removing trailing / - maybe a nginx problem
- if (substr($this->query_string, 0, 1) == "/")
- $this->query_string = substr($this->query_string, 1);
- }
-
- if (x($_GET,'pagename')) {
- $this->cmd = trim($_GET['pagename'],'/\\');
- } elseif (x($_GET,'q')) {
- $this->cmd = trim($_GET['q'],'/\\');
- }
-
-
- // fix query_string
- $this->query_string = str_replace($this->cmd."&",$this->cmd."?", $this->query_string);
-
-
- // unix style "homedir"
-
- if (substr($this->cmd,0,1) === '~') {
- $this->cmd = 'profile/' . substr($this->cmd,1);
- }
-
- // Diaspora style profile url
-
- if (substr($this->cmd,0,2) === 'u/') {
- $this->cmd = 'profile/' . substr($this->cmd,2);
- }
-
-
- /*
- *
- * Break the URL path into C style argc/argv style arguments for our
- * modules. Given "http://example.com/module/arg1/arg2", $this->argc
- * will be 3 (integer) and $this->argv will contain:
- * [0] => 'module'
- * [1] => 'arg1'
- * [2] => 'arg2'
- *
- *
- * There will always be one argument. If provided a naked domain
- * URL, $this->argv[0] is set to "home".
- *
- */
-
- $this->argv = explode('/',$this->cmd);
- $this->argc = count($this->argv);
- if((array_key_exists('0',$this->argv)) && strlen($this->argv[0])) {
- $this->module = str_replace(".", "_", $this->argv[0]);
- $this->module = str_replace("-", "_", $this->module);
- }
- else {
- $this->argc = 1;
- $this->argv = array('home');
- $this->module = 'home';
- }
-
- /*
- * See if there is any page number information, and initialise
- * pagination
- */
-
- $this->pager['page'] = ((x($_GET,'page') && intval($_GET['page']) > 0) ? intval($_GET['page']) : 1);
- $this->pager['itemspage'] = 50;
- $this->pager['start'] = ($this->pager['page'] * $this->pager['itemspage']) - $this->pager['itemspage'];
- if($this->pager['start'] < 0)
- $this->pager['start'] = 0;
- $this->pager['total'] = 0;
-
- /*
- * Detect mobile devices
- */
-
- $mobile_detect = new Mobile_Detect();
- $this->is_mobile = $mobile_detect->isMobile();
- $this->is_tablet = $mobile_detect->isTablet();
-
- // Friendica-Client
- $this->is_friendica_app = ($_SERVER['HTTP_USER_AGENT'] == "Apache-HttpClient/UNAVAILABLE (java 1.4)");
-
- /*
- * register template engines
- */
- $dc = get_declared_classes();
- foreach ($dc as $k) {
- if (in_array("ITemplateEngine", class_implements($k))){
- $this->register_template_engine($k);
- }
- }
-
- self::$a = $this;
-
- }
-
- public static function get_basepath() {
-
- $basepath = get_config("system", "basepath");
-
- if ($basepath == "")
- $basepath = dirname(__FILE__);
-
- if ($basepath == "")
- $basepath = $_SERVER["DOCUMENT_ROOT"];
-
- if ($basepath == "")
- $basepath = $_SERVER["PWD"];
-
- return($basepath);
- }
-
- function get_scheme() {
- return($this->scheme);
- }
-
- /**
- * @brief Retrieves the Friendica instance base URL
- *
- * This function assembles the base URL from multiple parts:
- * - Protocol is determined either by the request or a combination of
- * system.ssl_policy and the $ssl parameter.
- * - Host name is determined either by system.hostname or inferred from request
- * - Path is inferred from SCRIPT_NAME
- *
- * Note: $ssl parameter value doesn't directly correlate with the resulting protocol
- *
- * @param bool $ssl Whether to append http or https under SSL_POLICY_SELFSIGN
- * @return string Friendica server base URL
- */
- function get_baseurl($ssl = false) {
-
- // Is the function called statically?
- if (!(isset($this) && get_class($this) == __CLASS__)) {
- return self::$a->get_baseurl($ssl);
- }
-
- $scheme = $this->scheme;
-
- if (Config::get('system', 'ssl_policy') == SSL_POLICY_FULL) {
- $scheme = 'https';
- }
-
- // Basically, we have $ssl = true on any links which can only be seen by a logged in user
- // (and also the login link). Anything seen by an outsider will have it turned off.
-
- if (Config::get('system', 'ssl_policy') == SSL_POLICY_SELFSIGN) {
- if ($ssl) {
- $scheme = 'https';
- } else {
- $scheme = 'http';
- }
- }
-
- if (Config::get('config', 'hostname') != '') {
- $this->hostname = Config::get('config', 'hostname');
- }
-
- return $scheme . "://" . $this->hostname . ((isset($this->path) && strlen($this->path)) ? '/' . $this->path : '' );
- }
-
- /**
- * @brief Initializes the baseurl components
- *
- * Clears the baseurl cache to prevent inconstistencies
- *
- * @param string $url
- */
- function set_baseurl($url) {
- $parsed = @parse_url($url);
-
- if($parsed) {
- $this->scheme = $parsed['scheme'];
-
- $hostname = $parsed['host'];
- if (x($parsed, 'port')) {
- $hostname .= ':' . $parsed['port'];
- }
- if (x($parsed, 'path')) {
- $this->path = trim($parsed['path'], '\\/');
- }
-
- if (file_exists(".htpreconfig.php")) {
- @include(".htpreconfig.php");
- }
-
- if (get_config('config', 'hostname') != '') {
- $this->hostname = get_config('config', 'hostname');
- }
-
- if (!isset($this->hostname) OR ($this->hostname == '')) {
- $this->hostname = $hostname;
- }
- }
- }
-
- function get_hostname() {
- if (get_config('config','hostname') != "")
- $this->hostname = get_config('config','hostname');
-
- return $this->hostname;
- }
-
- function set_hostname($h) {
- $this->hostname = $h;
- }
-
- function set_path($p) {
- $this->path = trim(trim($p),'/');
- }
-
- function get_path() {
- return $this->path;
- }
-
- function set_pager_total($n) {
- $this->pager['total'] = intval($n);
- }
-
- function set_pager_itemspage($n) {
- $this->pager['itemspage'] = ((intval($n) > 0) ? intval($n) : 0);
- $this->pager['start'] = ($this->pager['page'] * $this->pager['itemspage']) - $this->pager['itemspage'];
- }
-
- function set_pager_page($n) {
- $this->pager['page'] = $n;
- $this->pager['start'] = ($this->pager['page'] * $this->pager['itemspage']) - $this->pager['itemspage'];
- }
-
- function init_pagehead() {
- $interval = ((local_user()) ? get_pconfig(local_user(),'system','update_interval') : 40000);
-
- // If the update is "deactivated" set it to the highest integer number (~24 days)
- if ($interval < 0)
- $interval = 2147483647;
-
- if($interval < 10000)
- $interval = 40000;
-
- // compose the page title from the sitename and the
- // current module called
- if (!$this->module=='')
- {
- $this->page['title'] = $this->config['sitename'].' ('.$this->module.')';
- } else {
- $this->page['title'] = $this->config['sitename'];
- }
-
- /* put the head template at the beginning of page['htmlhead']
- * since the code added by the modules frequently depends on it
- * being first
- */
- if(!isset($this->page['htmlhead']))
- $this->page['htmlhead'] = '';
-
- // If we're using Smarty, then doing replace_macros() will replace
- // any unrecognized variables with a blank string. Since we delay
- // replacing $stylesheet until later, we need to replace it now
- // with another variable name
- if($this->theme['template_engine'] === 'smarty3')
- $stylesheet = $this->get_template_ldelim('smarty3') . '$stylesheet' . $this->get_template_rdelim('smarty3');
- else
- $stylesheet = '$stylesheet';
-
- $shortcut_icon = get_config("system", "shortcut_icon");
- if ($shortcut_icon == "")
- $shortcut_icon = "images/friendica-32.png";
-
- $touch_icon = get_config("system", "touch_icon");
- if ($touch_icon == "")
- $touch_icon = "images/friendica-128.png";
-
- // get data wich is needed for infinite scroll on the network page
- $invinite_scroll = infinite_scroll_data($this->module);
-
- $tpl = get_markup_template('head.tpl');
- $this->page['htmlhead'] = replace_macros($tpl,array(
- '$baseurl' => $this->get_baseurl(), // FIXME for z_path!!!!
- '$local_user' => local_user(),
- '$generator' => 'Friendica' . ' ' . FRIENDICA_VERSION,
- '$delitem' => t('Delete this item?'),
- '$showmore' => t('show more'),
- '$showfewer' => t('show fewer'),
- '$update_interval' => $interval,
- '$shortcut_icon' => $shortcut_icon,
- '$touch_icon' => $touch_icon,
- '$stylesheet' => $stylesheet,
- '$infinite_scroll' => $invinite_scroll,
- )) . $this->page['htmlhead'];
- }
-
- function init_page_end() {
- if(!isset($this->page['end']))
- $this->page['end'] = '';
- $tpl = get_markup_template('end.tpl');
- $this->page['end'] = replace_macros($tpl,array(
- '$baseurl' => $this->get_baseurl() // FIXME for z_path!!!!
- )) . $this->page['end'];
- }
-
- function set_curl_code($code) {
- $this->curl_code = $code;
- }
-
- function get_curl_code() {
- return $this->curl_code;
- }
-
- function set_curl_content_type($content_type) {
- $this->curl_content_type = $content_type;
- }
-
- function get_curl_content_type() {
- return $this->curl_content_type;
- }
-
- function set_curl_headers($headers) {
- $this->curl_headers = $headers;
- }
-
- function get_curl_headers() {
- return $this->curl_headers;
- }
-
- function get_cached_avatar_image($avatar_image){
- return $avatar_image;
-
- // The following code is deactivated. It doesn't seem to make any sense and it slows down the system.
- /*
- if($this->cached_profile_image[$avatar_image])
- return $this->cached_profile_image[$avatar_image];
-
- $path_parts = explode("/",$avatar_image);
- $common_filename = $path_parts[count($path_parts)-1];
-
- if($this->cached_profile_picdate[$common_filename]){
- $this->cached_profile_image[$avatar_image] = $avatar_image . $this->cached_profile_picdate[$common_filename];
- } else {
- $r = q("SELECT `contact`.`avatar-date` AS picdate FROM `contact` WHERE `contact`.`thumb` like '%%/%s'",
- $common_filename);
- if (! dbm::is_result($r)) {
- $this->cached_profile_image[$avatar_image] = $avatar_image;
- } else {
- $this->cached_profile_picdate[$common_filename] = "?rev=".urlencode($r[0]['picdate']);
- $this->cached_profile_image[$avatar_image] = $avatar_image.$this->cached_profile_picdate[$common_filename];
- }
- }
- return $this->cached_profile_image[$avatar_image];
- */
- }
-
-
- /**
- * @brief Removes the baseurl from an url. This avoids some mixed content problems.
- *
- * @param string $orig_url
- *
- * @return string The cleaned url
- */
- function remove_baseurl($orig_url){
-
- // Is the function called statically?
- if (!(isset($this) && get_class($this) == __CLASS__)) {
- return(self::$a->remove_baseurl($orig_url));
- }
-
- // Remove the hostname from the url if it is an internal link
- $nurl = normalise_link($orig_url);
- $base = normalise_link($this->get_baseurl());
- $url = str_replace($base."/", "", $nurl);
-
- // if it is an external link return the orignal value
- if ($url == normalise_link($orig_url)) {
- return $orig_url;
- } else {
- return $url;
- }
- }
-
- /**
- * @brief Register template engine class
- *
- * If $name is "", is used class static property $class::$name
- *
- * @param string $class
- * @param string $name
- */
- function register_template_engine($class, $name = '') {
- if ($name===""){
- $v = get_class_vars( $class );
- if(x($v,"name")) $name = $v['name'];
- }
- if ($name===""){
- echo "template engine <tt>$class</tt> cannot be registered without a name.\n";
- killme();
- }
- $this->template_engines[$name] = $class;
- }
-
- /**
- * @brief Return template engine instance.
- *
- * If $name is not defined, return engine defined by theme,
- * or default
- *
- * @param strin $name Template engine name
- * @return object Template Engine instance
- */
- function template_engine($name = ''){
- if ($name!=="") {
- $template_engine = $name;
- } else {
- $template_engine = 'smarty3';
- if (x($this->theme, 'template_engine')) {
- $template_engine = $this->theme['template_engine'];
- }
- }
-
- if (isset($this->template_engines[$template_engine])){
- if(isset($this->template_engine_instance[$template_engine])){
- return $this->template_engine_instance[$template_engine];
- } else {
- $class = $this->template_engines[$template_engine];
- $obj = new $class;
- $this->template_engine_instance[$template_engine] = $obj;
- return $obj;
- }
- }
-
- echo "template engine <tt>$template_engine</tt> is not registered!\n"; killme();
- }
-
- /**
- * @brief Returns the active template engine.
- *
- * @return string
- */
- function get_template_engine() {
- return $this->theme['template_engine'];
- }
-
- function set_template_engine($engine = 'smarty3') {
- $this->theme['template_engine'] = $engine;
- /*
- $this->theme['template_engine'] = 'smarty3';
-
- switch($engine) {
- case 'smarty3':
- if(is_writable('view/smarty3/'))
- $this->theme['template_engine'] = 'smarty3';
- break;
- default:
- break;
- }
- */
- }
-
- function get_template_ldelim($engine = 'smarty3') {
- return $this->ldelim[$engine];
- }
-
- function get_template_rdelim($engine = 'smarty3') {
- return $this->rdelim[$engine];
- }
-
- function save_timestamp($stamp, $value) {
- if (!isset($this->config['system']['profiler']) || !$this->config['system']['profiler'])
- return;
-
- $duration = (float)(microtime(true)-$stamp);
-
- if (!isset($this->performance[$value])) {
- // Prevent ugly E_NOTICE
- $this->performance[$value] = 0;
- }
-
- $this->performance[$value] += (float)$duration;
- $this->performance["marktime"] += (float)$duration;
-
- $callstack = $this->callstack();
-
- if (!isset($this->callstack[$value][$callstack])) {
- // Prevent ugly E_NOTICE
- $this->callstack[$value][$callstack] = 0;
- }
-
- $this->callstack[$value][$callstack] += (float)$duration;
-
- }
-
- /**
- * @brief Log active processes into the "process" table
- */
- function start_process() {
- $trace = debug_backtrace(DEBUG_BACKTRACE_IGNORE_ARGS, 1);
-
- $command = basename($trace[0]["file"]);
-
- $this->remove_inactive_processes();
-
- q("START TRANSACTION");
-
- $r = q("SELECT `pid` FROM `process` WHERE `pid` = %d", intval(getmypid()));
- if (!dbm::is_result($r)) {
- q("INSERT INTO `process` (`pid`,`command`,`created`) VALUES (%d, '%s', '%s')",
- intval(getmypid()),
- dbesc($command),
- dbesc(datetime_convert()));
- }
- q("COMMIT");
- }
-
- /**
- * @brief Remove inactive processes
- */
- function remove_inactive_processes() {
- q("START TRANSACTION");
-
- $r = q("SELECT `pid` FROM `process`");
- if (dbm::is_result($r)) {
- foreach ($r AS $process) {
- if (!posix_kill($process["pid"], 0)) {
- q("DELETE FROM `process` WHERE `pid` = %d", intval($process["pid"]));
- }
- }
- }
- q("COMMIT");
- }
-
- /**
- * @brief Remove the active process from the "process" table
- */
- function end_process() {
- q("DELETE FROM `process` WHERE `pid` = %d", intval(getmypid()));
- }
-
- /**
- * @brief Returns a string with a callstack. Can be used for logging.
- *
- * @return string
- */
- function callstack() {
- $trace = debug_backtrace(DEBUG_BACKTRACE_IGNORE_ARGS, 6);
-
- // We remove the first two items from the list since they contain data that we don't need.
- array_shift($trace);
- array_shift($trace);
-
- $callstack = array();
- foreach ($trace AS $func)
- $callstack[] = $func["function"];
-
- return implode(", ", $callstack);
- }
-
- function get_useragent() {
- return(FRIENDICA_PLATFORM." '".FRIENDICA_CODENAME."' ".FRIENDICA_VERSION."-".DB_UPDATE_VERSION."; ".$this->get_baseurl());
- }
-
- function is_friendica_app() {
- return($this->is_friendica_app);
- }
-
- /**
- * @brief Checks if the site is called via a backend process
- *
- * This isn't a perfect solution. But we need this check very early.
- * So we cannot wait until the modules are loaded.
- *
- * @return bool Is it a known backend?
- */
- function is_backend() {
- $backend = array();
- $backend[] = "_well_known";
- $backend[] = "api";
- $backend[] = "dfrn_notify";
- $backend[] = "fetch";
- $backend[] = "hcard";
- $backend[] = "hostxrd";
- $backend[] = "nodeinfo";
- $backend[] = "noscrape";
- $backend[] = "p";
- $backend[] = "poco";
- $backend[] = "post";
- $backend[] = "proxy";
- $backend[] = "pubsub";
- $backend[] = "pubsubhubbub";
- $backend[] = "receive";
- $backend[] = "rsd_xml";
- $backend[] = "salmon";
- $backend[] = "statistics_json";
- $backend[] = "xrd";
-
- if (in_array($this->module, $backend))
- return(true);
- else
- return($this->backend);
- }
-
- /**
- * @brief Checks if the maximum number of database processes is reached
- *
- * @return bool Is the limit reached?
- */
- function max_processes_reached() {
-
- if ($this->is_backend()) {
- $process = "backend";
- $max_processes = get_config('system', 'max_processes_backend');
- if (intval($max_processes) == 0)
- $max_processes = 5;
- } else {
- $process = "frontend";
- $max_processes = get_config('system', 'max_processes_frontend');
- if (intval($max_processes) == 0)
- $max_processes = 20;
- }
-
- $processlist = dbm::processlist();
- if ($processlist["list"] != "") {
- logger("Processcheck: Processes: ".$processlist["amount"]." - Processlist: ".$processlist["list"], LOGGER_DEBUG);
-
- if ($processlist["amount"] > $max_processes) {
- logger("Processcheck: Maximum number of processes for ".$process." tasks (".$max_processes.") reached.", LOGGER_DEBUG);
- return true;
- }
- }
- return false;
- }
-
- /**
- * @brief Checks if the maximum load is reached
- *
- * @return bool Is the load reached?
- */
- function maxload_reached() {
-
- if ($this->is_backend()) {
- $process = "backend";
- $maxsysload = intval(get_config('system', 'maxloadavg'));
- if ($maxsysload < 1)
- $maxsysload = 50;
- } else {
- $process = "frontend";
- $maxsysload = intval(get_config('system','maxloadavg_frontend'));
- if ($maxsysload < 1)
- $maxsysload = 50;
- }
-
- $load = current_load();
- if ($load) {
- if (intval($load) > $maxsysload) {
- logger('system: load '.$load.' for '.$process.' tasks ('.$maxsysload.') too high.');
- return true;
- }
- }
- return false;
- }
-
- function proc_run($args) {
-
- if (!function_exists("proc_open")) {
- return;
- }
-
- // If the last worker fork was less than 10 seconds before then don't fork another one.
- // This should prevent the forking of masses of workers.
- $cachekey = "app:proc_run:started";
- $result = Cache::get($cachekey);
- if (!is_null($result)) {
- if ((time() - $result) < 10) {
- return;
- }
- }
- // Set the timestamp of the last proc_run
- Cache::set($cachekey, time(), CACHE_MINUTE);
-
- array_unshift($args, ((x($this->config,'php_path')) && (strlen($this->config['php_path'])) ? $this->config['php_path'] : 'php'));
-
- // add baseurl to args. cli scripts can't construct it
- $args[] = $this->get_baseurl();
-
- for($x = 0; $x < count($args); $x ++)
- $args[$x] = escapeshellarg($args[$x]);
-
- $cmdline = implode($args," ");
-
- if(get_config('system','proc_windows'))
- proc_close(proc_open('cmd /c start /b ' . $cmdline,array(),$foo,dirname(__FILE__)));
- else
- proc_close(proc_open($cmdline." &",array(),$foo,dirname(__FILE__)));
-
- }
-
- /**
- * @brief Returns the system user that is executing the script
- *
- * This mostly returns something like "www-data".
- *
- * @return string system username
- */
- static function systemuser() {
- if (!function_exists('posix_getpwuid') OR !function_exists('posix_geteuid')) {
- return '';
- }
-
- $processUser = posix_getpwuid(posix_geteuid());
- return $processUser['name'];
- }
-
- /**
- * @brief Checks if a given directory is usable for the system
- *
- * @return boolean the directory is usable
- */
- static function directory_usable($directory) {
-
- if ($directory == '') {
- logger("Directory is empty. This shouldn't happen.", LOGGER_DEBUG);
- return false;
- }
-
- if (!file_exists($directory)) {
- logger('Path "'.$directory.'" does not exist for user '.self::systemuser(), LOGGER_DEBUG);
- return false;
- }
- if (is_file($directory)) {
- logger('Path "'.$directory.'" is a file for user '.self::systemuser(), LOGGER_DEBUG);
- return false;
- }
- if (!is_dir($directory)) {
- logger('Path "'.$directory.'" is not a directory for user '.self::systemuser(), LOGGER_DEBUG);
- return false;
- }
- if (!is_writable($directory)) {
- logger('Path "'.$directory.'" is not writable for user '.self::systemuser(), LOGGER_DEBUG);
- return false;
- }
- return true;
- }