<?php
+/**
+ * @file src/Core/System.php
+ */
namespace Friendica\Core;
use Friendica\App;
/**
* @brief System methods
*/
-class System {
-
+class System
+{
private static $a;
/**
* @brief Initializes the static class variable
+ * @return void
*/
- private static function init() {
+ private static function init()
+ {
global $a;
if (!is_object(self::$a)) {
* @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) {
+ public static function baseUrl($ssl = false)
+ {
self::init();
return self::$a->get_baseurl($ssl);
}
/**
* @brief Removes the baseurl from an url. This avoids some mixed content problems.
*
- * @param string $orig_url
+ * @param string $orig_url The url to be cleaned
*
* @return string The cleaned url
*/
- function removedBaseUrl($orig_url) {
+ public static function removedBaseUrl($orig_url)
+ {
self::init();
return self::$a->remove_baseurl($orig_url);
}
+ /**
+ * @brief Returns a string with a callstack. Can be used for logging.
+ * @param integer $depth optional, default 4
+ * @return string
+ */
+ public static function callstack($depth = 4)
+ {
+ $trace = debug_backtrace(DEBUG_BACKTRACE_IGNORE_ARGS);
+
+ // We remove the first two items from the list since they contain data that we don't need.
+ array_shift($trace);
+ array_shift($trace);
+
+ $callstack = array();
+ $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($trace)) {
+ if (!empty($func['class'])) {
+ // 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)) {
+ $callstack[] = $func['function'];
+ $previous = $func;
+ }
+ }
+
+ $callstack2 = array();
+ while ((count($callstack2) < $depth) && (count($callstack) > 0)) {
+ $callstack2[] = array_pop($callstack);
+ }
+
+ return implode(', ', $callstack2);
+ }
+
+ /**
+ * @brief Called from db initialisation when db is dead.
+ */
+ static public function unavailable() {
+echo <<< EOT
+<html>
+ <head><title>System Unavailable</title></head>
+ <body>Apologies but this site is unavailable at the moment. Please try again later.</body>
+</html>
+EOT;
+
+ killme();
+ }
+
/// @todo Move the following functions from boot.php
/*
function get_guid($size = 16, $prefix = "")
projects / friendica.git / blobdiff