friendica/src/Core/System.php

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<?php
/**
* @file src/Core/System.php
*/
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namespace Friendica\Core;
use Friendica\App;
/**
* @file include/Core/System.php
*
* @brief Contains the class with system relevant stuff
*/
/**
* @brief System methods
*/
class System
{
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private static $a;
/**
* @brief Initializes the static class variable
* @return void
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*/
private static function init()
{
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global $a;
if (!is_object(self::$a)) {
self::$a = $a;
}
}
/**
* @brief Retrieves the Friendica instance base URL
*
* @param bool $ssl Whether to append http or https under SSL_POLICY_SELFSIGN
* @return string Friendica server base URL
*/
public static function baseUrl($ssl = false)
{
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self::init();
return self::$a->get_baseurl($ssl);
}
/**
* @brief Removes the baseurl from an url. This avoids some mixed content problems.
*
* @param string $orig_url The url to be cleaned
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*
* @return string The cleaned url
*/
public static function removedBaseUrl($orig_url)
{
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self::init();
return self::$a->remove_baseurl($orig_url);
}
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/**
* @brief Returns a string with a callstack. Can be used for logging.
* @param integer $depth optional, default 4
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* @return string
*/
public static function callstack($depth = 4)
{
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$trace = debug_backtrace(DEBUG_BACKTRACE_IGNORE_ARGS);
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// We remove the first two items from the list since they contain data that we don't need.
array_shift($trace);
array_shift($trace);
$callstack = array();
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$counter = 0;
$previous = array('class' => '', 'function' => '');
// The ignore list contains all functions that are only wrapper functions
$ignore = array('get_config', 'get_pconfig', 'set_config', 'set_pconfig', 'fetch_url', 'probe_url');
while ($func = array_pop($trace)) {
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if (!empty($func['class'])) {
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// Don't show multiple calls from the same function (mostly used for "dba" class)
if (($previous['class'] != $func['class']) && ($previous['function'] != 'q')) {
$classparts = explode("\\", $func['class']);
$callstack[] = array_pop($classparts).'::'.$func['function'];
$previous = $func;
}
} elseif (!in_array($func['function'], $ignore)) {
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$callstack[] = $func['function'];
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$previous = $func;
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}
}
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$callstack2 = array();
while ((count($callstack2) < $depth) && (count($callstack) > 0)) {
$callstack2[] = array_pop($callstack);
}
return implode(', ', $callstack2);
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}
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/// @todo Move the following functions from boot.php
/*
function get_guid($size = 16, $prefix = "")
function killme()
function goaway($s)
function local_user()
function public_contact()
function remote_user()
function notice($s)
function info($s)
function is_site_admin()
function random_digits($digits)
function get_server()
function get_temppath()
function get_cachefile($file, $writemode = true)
function get_itemcachepath()
function get_spoolpath()
function current_load()
*/
}