2017-08-26 06:04:21 +00:00
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<?php
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2017-11-19 19:15:25 +00:00
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/**
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* @file src/Core/System.php
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*/
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2017-08-26 06:04:21 +00:00
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namespace Friendica\Core;
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use Friendica\App;
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/**
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* @file include/Core/System.php
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*
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* @brief Contains the class with system relevant stuff
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*/
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/**
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* @brief System methods
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*/
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2017-11-19 19:15:25 +00:00
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class System
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{
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2017-08-26 06:04:21 +00:00
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private static $a;
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/**
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* @brief Initializes the static class variable
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2017-11-19 19:15:25 +00:00
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* @return void
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2017-08-26 06:04:21 +00:00
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*/
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2017-11-19 19:15:25 +00:00
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private static function init()
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{
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2017-08-26 06:04:21 +00:00
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global $a;
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if (!is_object(self::$a)) {
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self::$a = $a;
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}
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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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* @param bool $ssl Whether to append http or https under SSL_POLICY_SELFSIGN
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* @return string Friendica server base URL
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*/
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2017-11-19 19:15:25 +00:00
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public static function baseUrl($ssl = false)
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{
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2017-08-26 06:04:21 +00:00
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self::init();
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return self::$a->get_baseurl($ssl);
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}
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/**
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* @brief Removes the baseurl from an url. This avoids some mixed content problems.
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*
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2017-11-19 19:15:25 +00:00
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* @param string $orig_url The url to be cleaned
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2017-08-26 06:04:21 +00:00
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*
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* @return string The cleaned url
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*/
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2017-11-19 19:15:25 +00:00
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public static function removedBaseUrl($orig_url)
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{
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2017-08-26 06:04:21 +00:00
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self::init();
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return self::$a->remove_baseurl($orig_url);
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}
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2017-08-26 10:01:50 +00:00
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/**
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* @brief Returns a string with a callstack. Can be used for logging.
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2017-11-19 19:15:25 +00:00
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* @param integer $depth optional, default 4
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2017-08-26 10:01:50 +00:00
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* @return string
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*/
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2017-11-19 19:15:25 +00:00
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public static function callstack($depth = 4)
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{
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2017-10-17 20:51:46 +00:00
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$trace = debug_backtrace(DEBUG_BACKTRACE_IGNORE_ARGS);
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2017-08-26 10:01:50 +00:00
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// We remove the first two items from the list since they contain data that we don't need.
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array_shift($trace);
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array_shift($trace);
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$callstack = array();
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2017-10-17 20:51:46 +00:00
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$counter = 0;
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$previous = array('class' => '', 'function' => '');
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// The ignore list contains all functions that are only wrapper functions
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$ignore = array('get_config', 'get_pconfig', 'set_config', 'set_pconfig', 'fetch_url', 'probe_url');
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while ($func = array_pop($trace)) {
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2017-08-26 10:01:50 +00:00
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if (!empty($func['class'])) {
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2017-10-17 20:51:46 +00:00
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// Don't show multiple calls from the same function (mostly used for "dba" class)
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if (($previous['class'] != $func['class']) && ($previous['function'] != 'q')) {
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$classparts = explode("\\", $func['class']);
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$callstack[] = array_pop($classparts).'::'.$func['function'];
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$previous = $func;
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}
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} elseif (!in_array($func['function'], $ignore)) {
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2017-08-26 10:01:50 +00:00
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$callstack[] = $func['function'];
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2017-10-17 20:51:46 +00:00
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$previous = $func;
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2017-08-26 10:01:50 +00:00
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}
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}
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2017-10-17 20:51:46 +00:00
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$callstack2 = array();
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while ((count($callstack2) < $depth) && (count($callstack) > 0)) {
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$callstack2[] = array_pop($callstack);
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}
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return implode(', ', $callstack2);
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2017-08-26 10:01:50 +00:00
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}
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2017-12-13 21:55:19 +00:00
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/**
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* @brief Called from db initialisation when db is dead.
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*/
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static public function unavailable() {
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echo <<< EOT
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<html>
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<head><title>System Unavailable</title></head>
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<body>Apologies but this site is unavailable at the moment. Please try again later.</body>
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</html>
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EOT;
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killme();
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}
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2017-08-26 06:04:21 +00:00
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/// @todo Move the following functions from boot.php
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/*
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function get_guid($size = 16, $prefix = "")
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function killme()
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function goaway($s)
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function local_user()
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function public_contact()
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function remote_user()
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function notice($s)
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function info($s)
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function is_site_admin()
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function random_digits($digits)
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function get_server()
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function get_temppath()
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function get_cachefile($file, $writemode = true)
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function get_itemcachepath()
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function get_spoolpath()
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function current_load()
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*/
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}
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