<?php
+/**
+ * @file src/Core/System.php
+ */
namespace Friendica\Core;
-use Friendica\App;
+use Friendica\BaseObject;
/**
* @file include/Core/System.php
/**
* @brief System methods
*/
-class System {
-
- private static $a;
-
- /**
- * @brief Initializes the static class variable
- */
- private static function init() {
- global $a;
-
- if (!is_object(self::$a)) {
- self::$a = $a;
- }
- }
-
+class System extends BaseObject
+{
/**
* @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) {
- self::init();
- return self::$a->get_baseurl($ssl);
+ public static function baseUrl($ssl = false)
+ {
+ return self::getApp()->get_baseurl($ssl);
}
/**
* @brief Removes the baseurl from an url. This avoids some mixed content problems.
*
- * @param string $orig_url
+ * @param string $orig_url The url to be cleaned
*
* @return string The cleaned url
*/
- public static function removedBaseUrl($orig_url) {
- self::init();
- return self::$a->remove_baseurl($orig_url);
+ public static function removedBaseUrl($orig_url)
+ {
+ return self::getApp()->remove_baseurl($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) {
+ 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();
+ $callstack = [];
$counter = 0;
- $previous = array('class' => '', 'function' => '');
+ $previous = ['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');
+ $ignore = ['get_config', 'get_pconfig', 'set_config', 'set_pconfig', 'fetch_url', 'probe_url'];
while ($func = array_pop($trace)) {
if (!empty($func['class'])) {
}
}
- $callstack2 = array();
+ $callstack2 = [];
while ((count($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 = "")