981 lines
26 KiB
PHP
981 lines
26 KiB
PHP
<?php
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namespace Friendica;
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use Friendica\Core\System;
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use Friendica\Core\Config;
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use Friendica\Core\PConfig;
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use Cache;
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use dba;
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use dbm;
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use Detection\MobileDetect;
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use Exception;
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/**
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*
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* class: App
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*
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* @brief Our main application structure for the life of this page.
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*
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* Primarily deals with the URL that got us here
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* and tries to make some sense of it, and
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* stores our page contents and config storage
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* and anything else that might need to be passed around
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* before we spit the page out.
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*
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*/
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class App {
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public $module_loaded = false;
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public $query_string;
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public $config;
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public $page;
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public $profile;
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public $profile_uid;
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public $user;
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public $cid;
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public $contact;
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public $contacts;
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public $page_contact;
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public $content;
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public $data = array();
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public $error = false;
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public $cmd;
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public $argv;
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public $argc;
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public $module;
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public $pager;
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public $strings;
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public $basepath;
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public $path;
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public $hooks;
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public $timezone;
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public $interactive = true;
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public $plugins;
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public $apps = array();
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public $identities;
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public $is_mobile = false;
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public $is_tablet = false;
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public $is_friendica_app;
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public $performance = array();
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public $callstack = array();
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public $theme_info = array();
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public $backend = true;
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public $nav_sel;
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public $category;
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// Allow themes to control internal parameters
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// by changing App values in theme.php
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public $sourcename = '';
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public $videowidth = 425;
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public $videoheight = 350;
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public $force_max_items = 0;
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public $theme_thread_allow = true;
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public $theme_events_in_profile = true;
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/**
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* @brief An array for all theme-controllable parameters
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*
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* Mostly unimplemented yet. Only options 'template_engine' and
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* beyond are used.
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*/
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public $theme = array(
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'sourcename' => '',
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'videowidth' => 425,
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'videoheight' => 350,
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'force_max_items' => 0,
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'thread_allow' => true,
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'stylesheet' => '',
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'template_engine' => 'smarty3',
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);
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/**
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* @brief An array of registered template engines ('name'=>'class name')
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*/
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public $template_engines = array();
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/**
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* @brief An array of instanced template engines ('name'=>'instance')
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*/
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public $template_engine_instance = array();
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public $process_id;
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public $queue;
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private $ldelim = array(
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'internal' => '',
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'smarty3' => '{{'
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);
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private $rdelim = array(
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'internal' => '',
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'smarty3' => '}}'
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);
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private $scheme;
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private $hostname;
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private $db;
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private $curl_code;
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private $curl_content_type;
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private $curl_headers;
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private $cached_profile_image;
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private $cached_profile_picdate;
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private static $a;
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/**
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* @brief App constructor.
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*
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* @param string $basepath Path to the app base folder
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*/
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function __construct($basepath) {
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global $default_timezone;
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$hostname = '';
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if (! static::directory_usable($basepath, false)) {
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throw new Exception('Basepath ' . $basepath . ' isn\'t usable.');
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}
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$this->basepath = rtrim($basepath, DIRECTORY_SEPARATOR);
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if (file_exists($this->basepath.DIRECTORY_SEPARATOR.'.htpreconfig.php')) {
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include $this->basepath.DIRECTORY_SEPARATOR.'.htpreconfig.php';
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}
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$this->timezone = ((x($default_timezone)) ? $default_timezone : 'UTC');
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date_default_timezone_set($this->timezone);
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$this->performance['start'] = microtime(true);
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$this->performance['database'] = 0;
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$this->performance['database_write'] = 0;
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$this->performance['network'] = 0;
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$this->performance['file'] = 0;
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$this->performance['rendering'] = 0;
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$this->performance['parser'] = 0;
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$this->performance['marktime'] = 0;
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$this->performance['markstart'] = microtime(true);
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$this->callstack['database'] = array();
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$this->callstack['database_write'] = array();
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$this->callstack['network'] = array();
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$this->callstack['file'] = array();
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$this->callstack['rendering'] = array();
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$this->callstack['parser'] = array();
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$this->config = array();
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$this->page = array();
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$this->pager = array();
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$this->query_string = '';
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$this->process_id = uniqid('log', true);
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startup();
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$this->scheme = 'http';
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if ((x($_SERVER, 'HTTPS') && $_SERVER['HTTPS']) ||
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(x($_SERVER, 'HTTP_FORWARDED') && preg_match('/proto=https/', $_SERVER['HTTP_FORWARDED'])) ||
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(x($_SERVER, 'HTTP_X_FORWARDED_PROTO') && $_SERVER['HTTP_X_FORWARDED_PROTO'] == 'https') ||
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(x($_SERVER, 'HTTP_X_FORWARDED_SSL') && $_SERVER['HTTP_X_FORWARDED_SSL'] == 'on') ||
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(x($_SERVER, 'FRONT_END_HTTPS') && $_SERVER['FRONT_END_HTTPS'] == 'on') ||
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(x($_SERVER, 'SERVER_PORT') && (intval($_SERVER['SERVER_PORT']) == 443)) // XXX: reasonable assumption, but isn't this hardcoding too much?
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) {
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$this->scheme = 'https';
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}
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if (x($_SERVER, 'SERVER_NAME')) {
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$this->hostname = $_SERVER['SERVER_NAME'];
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if (x($_SERVER, 'SERVER_PORT') && $_SERVER['SERVER_PORT'] != 80 && $_SERVER['SERVER_PORT'] != 443) {
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$this->hostname .= ':' . $_SERVER['SERVER_PORT'];
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}
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/*
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* Figure out if we are running at the top of a domain
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* or in a sub-directory and adjust accordingly
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*/
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/// @TODO This kind of escaping breaks syntax-highlightning on CoolEdit (Midnight Commander)
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$path = trim(dirname($_SERVER['SCRIPT_NAME']), '/\\');
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if (isset($path) && strlen($path) && ($path != $this->path)) {
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$this->path = $path;
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}
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}
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if ($hostname != '') {
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$this->hostname = $hostname;
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}
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set_include_path(
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get_include_path() . PATH_SEPARATOR
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. $this->basepath . DIRECTORY_SEPARATOR . 'include' . PATH_SEPARATOR
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. $this->basepath . DIRECTORY_SEPARATOR . 'library' . PATH_SEPARATOR
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. $this->basepath);
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if (is_array($_SERVER['argv']) && $_SERVER['argc'] > 1 && substr(end($_SERVER['argv']), 0, 4) == 'http') {
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$this->set_baseurl(array_pop($_SERVER['argv']));
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$_SERVER['argc'] --;
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}
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if ((x($_SERVER, 'QUERY_STRING')) && substr($_SERVER['QUERY_STRING'], 0, 9) === 'pagename=') {
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$this->query_string = substr($_SERVER['QUERY_STRING'], 9);
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// removing trailing / - maybe a nginx problem
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$this->query_string = ltrim($this->query_string, '/');
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} elseif ((x($_SERVER, 'QUERY_STRING')) && substr($_SERVER['QUERY_STRING'], 0, 2) === 'q=') {
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$this->query_string = substr($_SERVER['QUERY_STRING'], 2);
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// removing trailing / - maybe a nginx problem
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$this->query_string = ltrim($this->query_string, '/');
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}
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if (x($_GET, 'pagename')) {
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$this->cmd = trim($_GET['pagename'], '/\\');
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} elseif (x($_GET, 'q')) {
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$this->cmd = trim($_GET['q'], '/\\');
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}
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// fix query_string
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$this->query_string = str_replace($this->cmd . '&', $this->cmd . '?', $this->query_string);
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// unix style "homedir"
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if (substr($this->cmd, 0, 1) === '~') {
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$this->cmd = 'profile/' . substr($this->cmd, 1);
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}
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// Diaspora style profile url
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if (substr($this->cmd, 0, 2) === 'u/') {
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$this->cmd = 'profile/' . substr($this->cmd, 2);
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}
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/*
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* Break the URL path into C style argc/argv style arguments for our
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* modules. Given "http://example.com/module/arg1/arg2", $this->argc
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* will be 3 (integer) and $this->argv will contain:
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* [0] => 'module'
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* [1] => 'arg1'
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* [2] => 'arg2'
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*
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*
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* There will always be one argument. If provided a naked domain
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* URL, $this->argv[0] is set to "home".
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*/
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$this->argv = explode('/', $this->cmd);
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$this->argc = count($this->argv);
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if ((array_key_exists('0', $this->argv)) && strlen($this->argv[0])) {
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$this->module = str_replace('.', '_', $this->argv[0]);
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$this->module = str_replace('-', '_', $this->module);
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} else {
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$this->argc = 1;
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$this->argv = array('home');
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$this->module = 'home';
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}
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// See if there is any page number information, and initialise pagination
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$this->pager['page'] = ((x($_GET, 'page') && intval($_GET['page']) > 0) ? intval($_GET['page']) : 1);
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$this->pager['itemspage'] = 50;
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$this->pager['start'] = ($this->pager['page'] * $this->pager['itemspage']) - $this->pager['itemspage'];
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if ($this->pager['start'] < 0) {
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$this->pager['start'] = 0;
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}
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$this->pager['total'] = 0;
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// Detect mobile devices
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$mobile_detect = new MobileDetect();
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$this->is_mobile = $mobile_detect->isMobile();
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$this->is_tablet = $mobile_detect->isTablet();
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// Friendica-Client
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$this->is_friendica_app = ($_SERVER['HTTP_USER_AGENT'] == 'Apache-HttpClient/UNAVAILABLE (java 1.4)');
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// Register template engines
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$dc = get_declared_classes();
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foreach ($dc as $k) {
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if (in_array('ITemplateEngine', class_implements($k))) {
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$this->register_template_engine($k);
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}
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}
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self::$a = $this;
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}
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/**
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* @brief Returns the base filesystem path of the App
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*
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* It first checks for the internal variable, then for DOCUMENT_ROOT and
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* finally for PWD
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*
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* @return string
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*/
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public static function get_basepath() {
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if (isset($this)) {
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$basepath = $this->basepath;
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}
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if (! $basepath) {
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$basepath = Config::get('system', 'basepath');
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}
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if (! $basepath && x($_SERVER, 'DOCUMENT_ROOT')) {
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$basepath = $_SERVER['DOCUMENT_ROOT'];
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}
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if (! $basepath && x($_SERVER, 'PWD')) {
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$basepath = $_SERVER['PWD'];
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}
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return self::realpath($basepath);
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}
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/**
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* @brief Returns a normalized file path
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*
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* This is a wrapper for the "realpath" function.
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* That function cannot detect the real path when some folders aren't readable.
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* Since this could happen with some hosters we need to handle this.
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*
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* @param string $path The path that is about to be normalized
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* @return string normalized path - when possible
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*/
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public static function realpath($path) {
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$normalized = realpath($path);
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if (!is_bool($normalized)) {
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return $normalized;
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} else {
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return $path;
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}
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}
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function get_scheme() {
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return $this->scheme;
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}
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/**
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* @brief Retrieves the Friendica instance base URL
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*
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* This function assembles the base URL from multiple parts:
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* - Protocol is determined either by the request or a combination of
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* system.ssl_policy and the $ssl parameter.
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* - Host name is determined either by system.hostname or inferred from request
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* - Path is inferred from SCRIPT_NAME
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*
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* Note: $ssl parameter value doesn't directly correlate with the resulting protocol
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*
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* @param bool $ssl Whether to append http or https under SSL_POLICY_SELFSIGN
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* @return string Friendica server base URL
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*/
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function get_baseurl($ssl = false) {
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$scheme = $this->scheme;
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if (Config::get('system', 'ssl_policy') == SSL_POLICY_FULL) {
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$scheme = 'https';
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}
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// Basically, we have $ssl = true on any links which can only be seen by a logged in user
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// (and also the login link). Anything seen by an outsider will have it turned off.
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if (Config::get('system', 'ssl_policy') == SSL_POLICY_SELFSIGN) {
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if ($ssl) {
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$scheme = 'https';
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} else {
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$scheme = 'http';
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}
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}
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if (Config::get('config', 'hostname') != '') {
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$this->hostname = Config::get('config', 'hostname');
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}
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return $scheme . '://' . $this->hostname . ((isset($this->path) && strlen($this->path)) ? '/' . $this->path : '' );
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}
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/**
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* @brief Initializes the baseurl components
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*
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* Clears the baseurl cache to prevent inconstistencies
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*
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* @param string $url
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*/
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function set_baseurl($url) {
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$parsed = @parse_url($url);
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if ($parsed) {
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$this->scheme = $parsed['scheme'];
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$hostname = $parsed['host'];
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if (x($parsed, 'port')) {
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$hostname .= ':' . $parsed['port'];
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}
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if (x($parsed, 'path')) {
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$this->path = trim($parsed['path'], '\\/');
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}
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if (file_exists($this->basepath.DIRECTORY_SEPARATOR.'.htpreconfig.php')) {
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include $this->basepath.DIRECTORY_SEPARATOR.'.htpreconfig.php';
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}
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if (Config::get('config', 'hostname') != '') {
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$this->hostname = Config::get('config', 'hostname');
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}
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if (!isset($this->hostname) || ( $this->hostname == '')) {
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$this->hostname = $hostname;
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}
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}
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}
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function get_hostname() {
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if (Config::get('config', 'hostname') != '') {
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$this->hostname = Config::get('config', 'hostname');
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}
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return $this->hostname;
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}
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function set_hostname($h) {
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$this->hostname = $h;
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}
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function set_path($p) {
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$this->path = trim(trim($p), '/');
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}
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function get_path() {
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return $this->path;
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}
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function set_pager_total($n) {
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$this->pager['total'] = intval($n);
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}
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function set_pager_itemspage($n) {
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$this->pager['itemspage'] = ((intval($n) > 0) ? intval($n) : 0);
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$this->pager['start'] = ($this->pager['page'] * $this->pager['itemspage']) - $this->pager['itemspage'];
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}
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function set_pager_page($n) {
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$this->pager['page'] = $n;
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$this->pager['start'] = ($this->pager['page'] * $this->pager['itemspage']) - $this->pager['itemspage'];
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}
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function init_pagehead() {
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$interval = ((local_user()) ? PConfig::get(local_user(), 'system', 'update_interval') : 40000);
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// If the update is 'deactivated' set it to the highest integer number (~24 days)
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if ($interval < 0) {
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$interval = 2147483647;
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}
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if ($interval < 10000) {
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$interval = 40000;
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}
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// compose the page title from the sitename and the
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// current module called
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if (!$this->module == '') {
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$this->page['title'] = $this->config['sitename'] . ' (' . $this->module . ')';
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} else {
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$this->page['title'] = $this->config['sitename'];
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}
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/* put the head template at the beginning of page['htmlhead']
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* since the code added by the modules frequently depends on it
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* being first
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*/
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if (!isset($this->page['htmlhead'])) {
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$this->page['htmlhead'] = '';
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}
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// If we're using Smarty, then doing replace_macros() will replace
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// any unrecognized variables with a blank string. Since we delay
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// replacing $stylesheet until later, we need to replace it now
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// with another variable name
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if ($this->theme['template_engine'] === 'smarty3') {
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$stylesheet = $this->get_template_ldelim('smarty3') . '$stylesheet' . $this->get_template_rdelim('smarty3');
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} else {
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$stylesheet = '$stylesheet';
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}
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$shortcut_icon = Config::get('system', 'shortcut_icon');
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if ($shortcut_icon == '') {
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$shortcut_icon = 'images/friendica-32.png';
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}
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$touch_icon = Config::get('system', 'touch_icon');
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if ($touch_icon == '') {
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$touch_icon = 'images/friendica-128.png';
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}
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// get data wich is needed for infinite scroll on the network page
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$invinite_scroll = infinite_scroll_data($this->module);
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$tpl = get_markup_template('head.tpl');
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$this->page['htmlhead'] = replace_macros($tpl, array(
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'$baseurl' => $this->get_baseurl(),
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'$local_user' => local_user(),
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'$generator' => 'Friendica' . ' ' . FRIENDICA_VERSION,
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'$delitem' => t('Delete this item?'),
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'$showmore' => t('show more'),
|
|
'$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()
|
|
)) . $this->page['end'];
|
|
}
|
|
|
|
function set_curl_code($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;
|
|
}
|
|
|
|
/**
|
|
* @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) {
|
|
|
|
// 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, $name = '') {
|
|
/// @TODO Really === and not just == ?
|
|
if ($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 = '') {
|
|
/// @TODO really type-check included?
|
|
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'] = $engine;
|
|
}
|
|
|
|
function get_template_ldelim($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;
|
|
|
|
$callstack = System::callstack();
|
|
|
|
if (!isset($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();
|
|
|
|
dba::transaction();
|
|
|
|
$r = q('SELECT `pid` FROM `process` WHERE `pid` = %d', intval(getmypid()));
|
|
if (!dbm::is_result($r)) {
|
|
dba::insert('process', array('pid' => getmypid(), 'command' => $command, 'created' => datetime_convert()));
|
|
}
|
|
dba::commit();
|
|
}
|
|
|
|
/**
|
|
* @brief Remove inactive processes
|
|
*/
|
|
function remove_inactive_processes() {
|
|
dba::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']));
|
|
}
|
|
}
|
|
}
|
|
dba::commit();
|
|
}
|
|
|
|
/**
|
|
* @brief Remove the active process from the "process" table
|
|
*/
|
|
function end_process() {
|
|
q('DELETE FROM `process` WHERE `pid` = %d', intval(getmypid()));
|
|
}
|
|
|
|
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() {
|
|
static $backends = array();
|
|
$backends[] = '_well_known';
|
|
$backends[] = 'api';
|
|
$backends[] = 'dfrn_notify';
|
|
$backends[] = 'fetch';
|
|
$backends[] = 'hcard';
|
|
$backends[] = 'hostxrd';
|
|
$backends[] = 'nodeinfo';
|
|
$backends[] = 'noscrape';
|
|
$backends[] = 'p';
|
|
$backends[] = 'poco';
|
|
$backends[] = 'post';
|
|
$backends[] = 'proxy';
|
|
$backends[] = 'pubsub';
|
|
$backends[] = 'pubsubhubbub';
|
|
$backends[] = 'receive';
|
|
$backends[] = 'rsd_xml';
|
|
$backends[] = 'salmon';
|
|
$backends[] = 'statistics_json';
|
|
$backends[] = 'xrd';
|
|
|
|
// Check if current module is in backend or backend flag is set
|
|
return (in_array($this->module, $backends) || $this->backend);
|
|
}
|
|
|
|
/**
|
|
* @brief Checks if the maximum number of database processes is reached
|
|
*
|
|
* @return bool Is the limit reached?
|
|
*/
|
|
function max_processes_reached() {
|
|
// Deactivated, needs more investigating if this check really makes sense
|
|
return false;
|
|
|
|
if ($this->is_backend()) {
|
|
$process = 'backend';
|
|
$max_processes = Config::get('system', 'max_processes_backend');
|
|
if (intval($max_processes) == 0) {
|
|
$max_processes = 5;
|
|
}
|
|
} else {
|
|
$process = 'frontend';
|
|
$max_processes = Config::get('system', 'max_processes_frontend');
|
|
if (intval($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 minimal memory is reached
|
|
*
|
|
* @return bool Is the memory limit reached?
|
|
*/
|
|
public function min_memory_reached() {
|
|
$min_memory = Config::get('system', 'min_memory', 0);
|
|
if ($min_memory == 0) {
|
|
return false;
|
|
}
|
|
|
|
if (!is_readable('/proc/meminfo')) {
|
|
return false;
|
|
}
|
|
|
|
$memdata = explode("\n", file_get_contents('/proc/meminfo'));
|
|
|
|
$meminfo = array();
|
|
foreach ($memdata as $line) {
|
|
list($key, $val) = explode(':', $line);
|
|
$meminfo[$key] = (int) trim(str_replace('kB', '', $val));
|
|
$meminfo[$key] = (int) ($meminfo[$key] / 1024);
|
|
}
|
|
|
|
if (!isset($meminfo['MemAvailable']) || ! isset($meminfo['MemFree'])) {
|
|
return false;
|
|
}
|
|
|
|
$free = $meminfo['MemAvailable'] + $meminfo['MemFree'];
|
|
|
|
$reached = ($free < $min_memory);
|
|
|
|
if ($reached) {
|
|
logger('Minimal memory reached: ' . $free . '/' . $meminfo['MemTotal'] . ' - limit ' . $min_memory, LOGGER_DEBUG);
|
|
}
|
|
|
|
return $reached;
|
|
}
|
|
|
|
/**
|
|
* @brief Checks if the maximum load is reached
|
|
*
|
|
* @return bool Is the load reached?
|
|
*/
|
|
function maxload_reached() {
|
|
|
|
if ($this->is_backend()) {
|
|
$process = 'backend';
|
|
$maxsysload = intval(Config::get('system', 'maxloadavg'));
|
|
if ($maxsysload < 1) {
|
|
$maxsysload = 50;
|
|
}
|
|
} else {
|
|
$process = 'frontend';
|
|
$maxsysload = intval(Config::get('system', 'maxloadavg_frontend'));
|
|
if ($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 2 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) && ( time() - $result) < 2) {
|
|
return;
|
|
}
|
|
|
|
// Set the timestamp of the last proc_run
|
|
Cache::set($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 ($this->min_memory_reached()) {
|
|
return;
|
|
}
|
|
|
|
if (Config::get('system', 'proc_windows')) {
|
|
$resource = proc_open('cmd /c start /b ' . $cmdline, array(), $foo, $this->get_basepath());
|
|
} else {
|
|
$resource = proc_open($cmdline . ' &', array(), $foo, $this->get_basepath());
|
|
}
|
|
if (!is_resource($resource)) {
|
|
logger('We got no resource for command ' . $cmdline, LOGGER_DEBUG);
|
|
return;
|
|
}
|
|
proc_close($resource);
|
|
}
|
|
|
|
/**
|
|
* @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') || ! 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, $check_writable = true) {
|
|
if ($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 "' . $directory . '" is not a directory for user ' . self::systemuser(), LOGGER_DEBUG);
|
|
return false;
|
|
}
|
|
if ($check_writable && !is_writable($directory)) {
|
|
logger('Path "' . $directory . '" is not writable for user ' . self::systemuser(), LOGGER_DEBUG);
|
|
return false;
|
|
}
|
|
return true;
|
|
}
|
|
}
|