Fix number constant used in Console\PoToPhp

[friendica.git] / src / Core / System.php

diff --git a/src/Core/System.php b/src/Core/System.php
index 36870af6d2cc2b7437e80f50ee4ab0df498f2581..7b68f6131c820eb9991e3ae684f862872b5e601c 100644 (file)
--- a/src/Core/System.php
+++ b/src/Core/System.php
@@ -1,7 +1,11 @@
 <?php
+/**
+ * @file src/Core/System.php
+ */
 namespace Friendica\Core;
 
-use Friendica\App;
+use Friendica\BaseObject;
+use Friendica\Util\XML;
 
 /**
  * @file include/Core/System.php
@@ -13,66 +17,165 @@ use Friendica\App;
 /**
  * @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) {
-               $trace = debug_backtrace(DEBUG_BACKTRACE_IGNORE_ARGS, $depth + 2);
+       public static function callstack($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);
 
-               $callstack = array();
-               foreach ($trace AS $func) {
+               $callstack = [];
+               $counter = 0;
+               $previous = ['class' => '', 'function' => ''];
+
+               // The ignore list contains all functions that are only wrapper functions
+               $ignore = ['fetchUrl'];
+
+               while ($func = array_pop($trace)) {
                        if (!empty($func['class'])) {
-                               $callstack[] = $func['class'].'::'.$func['function'];
-                       } else {
+                               // 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;
                        }
                }
 
-               return implode(', ', $callstack);
+               $callstack2 = [];
+               while ((count($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();
+       }
+
+       /**
+        * Generic XML return
+        * Outputs a basic dfrn XML status structure to STDOUT, with a <status> variable
+        * of $st and an optional text <message> of $message and terminates the current process.
+        */
+       public static function xmlExit($st, $message = '')
+       {
+               $result = ['status' => $st];
+
+               if ($message != '') {
+                       $result['message'] = $message;
+               }
+
+               if ($st) {
+                       logger('xml_status returning non_zero: ' . $st . " message=" . $message);
+               }
+
+               header("Content-type: text/xml");
+
+               $xmldata = ["result" => $result];
+
+               echo XML::fromArray($xmldata, $xml);
+
+               killme();
+       }
+
+       /**
+        * @brief Send HTTP status header and exit.
+        *
+        * @param integer $val         HTTP status result value
+        * @param array   $description optional message
+        *                             'title' => header title
+        *                             'description' => optional message
+        */
+       public static function httpExit($val, $description = [])
+       {
+               $err = '';
+               if ($val >= 400) {
+                       $err = 'Error';
+                       if (!isset($description["title"])) {
+                               $description["title"] = $err." ".$val;
+                       }
+               }
+
+               if ($val >= 200 && $val < 300) {
+                       $err = 'OK';
+               }
+
+               logger('http_status_exit ' . $val);
+               header($_SERVER["SERVER_PROTOCOL"] . ' ' . $val . ' ' . $err);
+
+               if (isset($description["title"])) {
+                       $tpl = get_markup_template('http_status.tpl');
+                       echo replace_macros(
+                               $tpl,
+                               [
+                                       '$title' => $description["title"],
+                                       '$description' => $description["description"]]
+                       );
+               }
+
+               killme();
+       }
+
+       /**
+        * @brief Encodes content to json
+        *
+        * This function encodes an array to json format
+        * and adds an application/json HTTP header to the output.
+        * After finishing the process is getting killed.
+        *
+        * @param array $x The input content
+        */
+       public static function jsonExit($x)
+       {
+               header("content-type: application/json");
+               echo json_encode($x);
+               killme();
        }
 
        /// @todo Move the following functions from boot.php