System Unavailable

X-Git-Url: https://git.mxchange.org/?a=blobdiff_plain;f=src%2FCore%2FSystem.php;h=4e2b63f044bbb2ae30ee374924671bf37c3f040e;hb=cfa68c52b9117616fa95a4639ad74e7d220d193d;hp=4ec5b2ad352480fe259757a9e8f84f467f8413ff;hpb=5640c42469b8ec1c5731b599b0dc9d9a0e762ce6;p=friendica.git diff --git a/src/Core/System.php b/src/Core/System.php index 4ec5b2ad35..4e2b63f044 100644 --- a/src/Core/System.php +++ b/src/Core/System.php @@ -5,6 +5,7 @@ namespace Friendica\Core; use Friendica\BaseObject; +use Friendica\Util\XML; /** * @file include/Core/System.php @@ -54,28 +55,29 @@ class System extends BaseObject 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'); + $ignore = ['fetchUrl', 'call_user_func_array']; while ($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')) { + // Don't show multiple calls from the "dba" class to show the essential parts of the callstack + if ((($previous['class'] != $func['class']) || ($func['class'] != 'dba')) && ($previous['function'] != 'q')) { $classparts = explode("\\", $func['class']); $callstack[] = array_pop($classparts).'::'.$func['function']; $previous = $func; } } elseif (!in_array($func['function'], $ignore)) { $callstack[] = $func['function']; + $func['class'] = ''; $previous = $func; } } - $callstack2 = array(); + $callstack2 = []; while ((count($callstack2) < $depth) && (count($callstack) > 0)) { $callstack2[] = array_pop($callstack); } @@ -84,22 +86,126 @@ class System extends BaseObject } /** - * @brief Called from db initialisation when db is dead. + * Generic XML return + * Outputs a basic dfrn XML status structure to STDOUT, with a variable + * of $st and an optional text of $message and terminates the current process. */ - static public function unavailable() { -echo <<< EOT - - System Unavailable - Apologies but this site is unavailable at the moment. Please try again later. - -EOT; + public static function xmlExit($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' => defaults($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. + * @param string $content_type Type of the input (Default: 'application/json'). + */ + public static function jsonExit($x, $content_type = 'application/json') { + header("Content-type: $content_type"); + echo json_encode($x); killme(); } + /** + * Generates a GUID with the given parameters + * + * @param int $size The size of the GUID (default is 16) + * @param bool|string $prefix A given prefix (default is empty) + * @return string a generated GUID + */ + public static function createGUID($size = 16, $prefix = '') + { + if (is_bool($prefix) && !$prefix) { + $prefix = ''; + } elseif (empty($prefix)) { + $prefix = hash('crc32', self::getApp()->get_hostname()); + } + + while (strlen($prefix) < ($size - 13)) { + $prefix .= mt_rand(); + } + + if ($size >= 24) { + $prefix = substr($prefix, 0, $size - 22); + return str_replace('.', '', uniqid($prefix, true)); + } else { + $prefix = substr($prefix, 0, max($size - 13, 0)); + return uniqid($prefix); + } + } + + /** + * Generates a process identifier for the logging + * + * @param string $prefix A given prefix + * + * @return string a generated process identifier + */ + public static function processID($prefix) + { + // We aren't calling any other function here. + // Doing so could easily create an endless loop + $trailer = $prefix . ':' . getmypid() . ':'; + return substr($trailer . uniqid('') . mt_rand(), 0, 26); + } + /// @todo Move the following functions from boot.php /* - function get_guid($size = 16, $prefix = "") function killme() function goaway($s) function local_user()