/**
* Flush any pending log messages to the logging handler.
*
* This method is intended to be registered as a shutdown handler, so that any pending messages that weren't sent
* to the logging handler at that point, can still make it. It is therefore not intended to be called manually.
*
*/
public static function flush()
{
$s = \SimpleSAML_Session::getSessionFromRequest();
self::$trackid = $s->getTrackID();
self::$shuttingDown = true;
foreach (self::$earlyLog as $msg) {
self::log($msg['level'], $msg['string'], $msg['statsLog']);
}
}
private static function log($level, $string, $statsLog = false)
{
if (self::$loggingHandler === false) {
// some error occurred while initializing logging
self::defer($level, $string, $statsLog);
return;
} elseif (php_sapi_name() === 'cli' || defined('STDIN')) {
// we are being executed from the CLI, nowhere to log
if (is_null(self::$loggingHandler)) {
self::createLoggingHandler('SimpleSAML\\Logger\\StandardErrorLoggingHandler');
}
$_SERVER['REMOTE_ADDR'] = "CLI";
if (self::$trackid === self::NO_TRACKID) {
self::$trackid = 'CL' . bin2hex(openssl_random_pseudo_bytes(4));
}
} elseif (self::$loggingHandler === null) {
// Initialize logging
self::createLoggingHandler();
if (!empty(self::$earlyLog)) {
// output messages which were logged before we properly initialized logging
foreach (self::$earlyLog as $msg) {
self::log($msg['level'], $msg['string'], $msg['statsLog']);
}
}
}
if (self::$captureLog) {
$ts = microtime(true);
$msecs = (int) (($ts - (int) $ts) * 1000);
$ts = gmdate('H:i:s', $ts) . sprintf('.%03d', $msecs) . 'Z';
self::$capturedLog[] = $ts . ' ' . $string;
}
if (self::$logLevel >= $level || $statsLog) {
if (is_array($string)) {
$string = implode(",", $string);
}
$formats = array('%trackid', '%msg', '%srcip', '%stat');
$replacements = array(self::$trackid, $string, $_SERVER['REMOTE_ADDR']);
$stat = '';
if ($statsLog) {
$stat = 'STAT ';
}
array_push($replacements, $stat);
if (self::$trackid === self::NO_TRACKID && !self::$shuttingDown) {
// we have a log without track ID and we are not still shutting down, so defer logging
self::defer($level, $string, $statsLog);
return;
} elseif (self::$trackid === self::NO_TRACKID) {
// shutting down without a track ID, prettify it
array_shift($replacements);
array_unshift($replacements, 'N/A');
}
// we either have a track ID or we are shutting down, so just log the message
$string = str_replace($formats, $replacements, self::$format);
self::$loggingHandler->log($level, $string);
}
}
