+ /**
+ * @see Logger::error()
+ */
+ const WARNING = LogLevel::ERROR;
+ /**
+ * @see Logger::warning()
+ */
+ const INFO = LogLevel::WARNING;
+ /**
+ * @see Logger::notice()
+ */
+ const TRACE = LogLevel::NOTICE;
+ /**
+ * @see Logger::info()
+ */
+ const DEBUG = LogLevel::INFO;
+ /**
+ * @see Logger::debug()
+ */
+ const DATA = LogLevel::DEBUG;
+ /**
+ * @see Logger::debug()
+ */
+ const ALL = LogLevel::DEBUG;
+
+ /**
+ * @var array the legacy loglevels
+ * @deprecated 2019.03 use PSR-3 loglevels
+ * @see https://github.com/php-fig/fig-standards/blob/master/accepted/PSR-3-logger-interface.md#5-psrlogloglevel
+ *
+ */
+ public static $levels = [
+ self::WARNING => 'Warning',
+ self::INFO => 'Info',
+ self::TRACE => 'Trace',
+ self::DEBUG => 'Debug',
+ self::DATA => 'Data',
+ self::ALL => 'All',
+ ];
+
+ /**
+ * @var LoggerInterface A PSR-3 compliant logger instance
+ */
+ private static $logger;
+
+ /**
+ * @var LoggerInterface A PSR-3 compliant logger instance for developing only
+ */
+ private static $devLogger;
+
+ /**
+ * Sets the default logging handler for Friendica.
+ * @todo Can be combined with other handlers too if necessary, could be configurable.
+ *
+ * @param LoggerInterface $logger The Logger instance of this Application
+ *
+ * @throws InternalServerErrorException if the logger factory is incompatible to this logger
+ */
+ public static function setLogger($logger)
+ {
+ $debugging = Config::get('system', 'debugging');
+ $logfile = Config::get('system', 'logfile');
+ $loglevel = Config::get('system', 'loglevel');
+
+ if (!$debugging || !$logfile) {
+ return;
+ }
+
+ $loglevel = self::mapLegacyConfigDebugLevel((string)$loglevel);
+
+ LoggerFactory::addStreamHandler($logger, $logfile, $loglevel);
+
+ self::$logger = $logger;
+
+ $logfile = Config::get('system', 'dlogfile');
+
+ if (!$logfile) {
+ return;
+ }
+
+ $developIp = Config::get('system', 'dlogip');
+
+ self::$devLogger = LoggerFactory::createDev('develop', $developIp);
+ LoggerFactory::addStreamHandler(self::$devLogger, $logfile, LogLevel::DEBUG);
+ }
+
+ /**
+ * Mapping a legacy level to the PSR-3 compliant levels
+ * @see https://github.com/php-fig/fig-standards/blob/master/accepted/PSR-3-logger-interface.md#5-psrlogloglevel
+ *
+ * @param string $level the level to be mapped
+ *
+ * @return string the PSR-3 compliant level
+ */
+ private static function mapLegacyConfigDebugLevel($level)
+ {
+ switch ($level) {
+ // legacy WARNING
+ case "0":
+ return LogLevel::ERROR;
+ // legacy INFO
+ case "1":
+ return LogLevel::WARNING;
+ // legacy TRACE
+ case "2":
+ return LogLevel::NOTICE;
+ // legacy DEBUG
+ case "3":
+ return LogLevel::INFO;
+ // legacy DATA
+ case "4":
+ return LogLevel::DEBUG;
+ // legacy ALL
+ case "5":
+ return LogLevel::DEBUG;
+ // default if nothing set
+ default:
+ return $level;
+ }
+ }
+
+ /**
+ * System is unusable.
+ *
+ * @see LoggerInterface::emergency()
+ *
+ * @param string $message
+ * @param array $context
+ *
+ * @return void
+ * @throws \Exception
+ */
+ public static function emergency($message, $context = [])
+ {
+ if (!isset(self::$logger)) {
+ return;
+ }
+
+ $stamp1 = microtime(true);
+ self::$logger->emergency($message, $context);
+ self::getApp()->saveTimestamp($stamp1, 'file');
+ }
+
+ /**
+ * Action must be taken immediately.
+ * @see LoggerInterface::alert()
+ *
+ * Example: Entire website down, database unavailable, etc. This should
+ * trigger the SMS alerts and wake you up.
+ *
+ * @param string $message
+ * @param array $context
+ *
+ * @return void
+ * @throws \Exception
+ */
+ public static function alert($message, $context = [])
+ {
+ if (!isset(self::$logger)) {
+ return;
+ }
+
+ $stamp1 = microtime(true);
+ self::$logger->alert($message, $context);
+ self::getApp()->saveTimestamp($stamp1, 'file');
+ }
+
+ /**
+ * Critical conditions.
+ * @see LoggerInterface::critical()
+ *
+ * Example: Application component unavailable, unexpected exception.
+ *
+ * @param string $message
+ * @param array $context
+ *
+ * @return void
+ * @throws \Exception
+ */
+ public static function critical($message, $context = [])
+ {
+ if (!isset(self::$logger)) {
+ return;
+ }
+
+ $stamp1 = microtime(true);
+ self::$logger->critical($message, $context);
+ self::getApp()->saveTimestamp($stamp1, 'file');
+ }
+
+ /**
+ * Runtime errors that do not require immediate action but should typically
+ * be logged and monitored.
+ * @see LoggerInterface::error()
+ *
+ * @param string $message
+ * @param array $context
+ *
+ * @return void
+ * @throws \Exception
+ */
+ public static function error($message, $context = [])
+ {
+ if (!isset(self::$logger)) {
+ echo "not set!?\n";
+ return;
+ }
+
+ $stamp1 = microtime(true);
+ self::$logger->error($message, $context);
+ self::getApp()->saveTimestamp($stamp1, 'file');
+ }
+
+ /**
+ * Exceptional occurrences that are not errors.
+ * @see LoggerInterface::warning()
+ *
+ * Example: Use of deprecated APIs, poor use of an API, undesirable things
+ * that are not necessarily wrong.
+ *
+ * @param string $message
+ * @param array $context
+ *
+ * @return void
+ * @throws \Exception
+ */
+ public static function warning($message, $context = [])
+ {
+ if (!isset(self::$logger)) {
+ return;
+ }
+
+ $stamp1 = microtime(true);
+ self::$logger->warning($message, $context);
+ self::getApp()->saveTimestamp($stamp1, 'file');
+ }
+
+ /**
+ * Normal but significant events.
+ * @see LoggerInterface::notice()
+ *
+ * @param string $message
+ * @param array $context
+ *
+ * @return void
+ * @throws \Exception
+ */
+ public static function notice($message, $context = [])
+ {
+ if (!isset(self::$logger)) {
+ return;
+ }
+
+ $stamp1 = microtime(true);
+ self::$logger->notice($message, $context);
+ self::getApp()->saveTimestamp($stamp1, 'file');
+ }
+
+ /**
+ * Interesting events.
+ * @see LoggerInterface::info()
+ *
+ * Example: User logs in, SQL logs.
+ *
+ * @param string $message
+ * @param array $context
+ *
+ * @return void
+ * @throws \Exception
+ */
+ public static function info($message, $context = [])
+ {
+ if (!isset(self::$logger)) {
+ return;
+ }
+
+ $stamp1 = microtime(true);
+ self::$logger->info($message, $context);
+ self::getApp()->saveTimestamp($stamp1, 'file');
+ }
+
+ /**
+ * Detailed debug information.
+ * @see LoggerInterface::debug()
+ *
+ * @param string $message
+ * @param array $context
+ *
+ * @return void
+ * @throws \Exception
+ */
+ public static function debug($message, $context = [])
+ {
+ if (!isset(self::$logger)) {
+ return;
+ }
+
+ $stamp1 = microtime(true);
+ self::$logger->debug($message, $context);
+ self::getApp()->saveTimestamp($stamp1, 'file');
+ }