3 * @file src/Core/System.php
5 namespace Friendica\Core;
7 use Friendica\BaseObject;
8 use Friendica\Util\XML;
11 * @file include/Core/System.php
13 * @brief Contains the class with system relevant stuff
18 * @brief System methods
20 class System extends BaseObject
23 * @brief Retrieves the Friendica instance base URL
25 * @param bool $ssl Whether to append http or https under SSL_POLICY_SELFSIGN
26 * @return string Friendica server base URL
28 public static function baseUrl($ssl = false)
30 return self::getApp()->get_baseurl($ssl);
34 * @brief Removes the baseurl from an url. This avoids some mixed content problems.
36 * @param string $orig_url The url to be cleaned
38 * @return string The cleaned url
40 public static function removedBaseUrl($orig_url)
42 return self::getApp()->remove_baseurl($orig_url);
46 * @brief Returns a string with a callstack. Can be used for logging.
47 * @param integer $depth optional, default 4
50 public static function callstack($depth = 4)
52 $trace = debug_backtrace(DEBUG_BACKTRACE_IGNORE_ARGS);
54 // We remove the first two items from the list since they contain data that we don't need.
60 $previous = ['class' => '', 'function' => ''];
62 // The ignore list contains all functions that are only wrapper functions
63 $ignore = ['fetchUrl'];
65 while ($func = array_pop($trace)) {
66 if (!empty($func['class'])) {
67 // Don't show multiple calls from the same function (mostly used for "dba" class)
68 if (($previous['class'] != $func['class']) && ($previous['function'] != 'q')) {
69 $classparts = explode("\\", $func['class']);
70 $callstack[] = array_pop($classparts).'::'.$func['function'];
73 } elseif (!in_array($func['function'], $ignore)) {
74 $callstack[] = $func['function'];
80 while ((count($callstack2) < $depth) && (count($callstack) > 0)) {
81 $callstack2[] = array_pop($callstack);
84 return implode(', ', $callstack2);
88 * @brief Called from db initialisation when db is dead.
90 static public function unavailable() {
93 <head><title>System Unavailable</title></head>
94 <body>Apologies but this site is unavailable at the moment. Please try again later.</body>
103 * Outputs a basic dfrn XML status structure to STDOUT, with a <status> variable
104 * of $st and an optional text <message> of $message and terminates the current process.
106 public static function xmlExit($st, $message = '')
108 $result = ['status' => $st];
110 if ($message != '') {
111 $result['message'] = $message;
115 logger('xml_status returning non_zero: ' . $st . " message=" . $message);
118 header("Content-type: text/xml");
120 $xmldata = ["result" => $result];
122 echo XML::fromArray($xmldata, $xml);
128 * @brief Send HTTP status header and exit.
130 * @param integer $val HTTP status result value
131 * @param array $description optional message
132 * 'title' => header title
133 * 'description' => optional message
135 public static function httpExit($val, $description = [])
140 if (!isset($description["title"])) {
141 $description["title"] = $err." ".$val;
145 if ($val >= 200 && $val < 300) {
149 logger('http_status_exit ' . $val);
150 header($_SERVER["SERVER_PROTOCOL"] . ' ' . $val . ' ' . $err);
152 if (isset($description["title"])) {
153 $tpl = get_markup_template('http_status.tpl');
157 '$title' => $description["title"],
158 '$description' => $description["description"]]
166 * @brief Encodes content to json
168 * This function encodes an array to json format
169 * and adds an application/json HTTP header to the output.
170 * After finishing the process is getting killed.
172 * @param array $x The input content
174 public static function jsonExit($x)
176 header("content-type: application/json");
177 echo json_encode($x);
181 /// @todo Move the following functions from boot.php
183 function get_guid($size = 16, $prefix = "")
186 function local_user()
187 function public_contact()
188 function remote_user()
191 function is_site_admin()
192 function random_digits($digits)
193 function get_server()
194 function get_temppath()
195 function get_cachefile($file, $writemode = true)
196 function get_itemcachepath()
197 function get_spoolpath()
198 function current_load()