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<?php /* * This file is part of the Monolog package. * * (c) Jordi Boggiano <j.boggiano@seld.be> * * For the full copyright and license information, please view the LICENSE * file that was distributed with this source code. */ /** * Monolog log channel * * It contains a stack of Handlers and a stack of Processors, * and uses them to store records that are added to it. * * @author Jordi Boggiano <j.boggiano@seld.be> */ class Monolog_Logger implements Monolog_Psr_LoggerInterface { /** * Detailed debug information */ const DEBUG = 100; /** * Interesting events * * Examples: User logs in, SQL logs. */ const INFO = 200; /** * Uncommon events */ const NOTICE = 250; /** * Exceptional occurrences that are not errors * * Examples: Use of deprecated APIs, poor use of an API, * undesirable things that are not necessarily wrong. */ const WARNING = 300; /** * Runtime errors */ const ERROR = 400; /** * Critical conditions * * Example: Application component unavailable, unexpected exception. */ const CRITICAL = 500; /** * Action must be taken immediately * * Example: Entire website down, database unavailable, etc. * This should trigger the SMS alerts and wake you up. */ const ALERT = 550; /** * Urgent alert. */ const EMERGENCY = 600; /** * Monolog API version * * This is only bumped when API breaks are done and should * follow the major version of the library * * @var int */ const API = 1; /** * Logging levels from syslog protocol defined in RFC 5424 * * @var array $levels Logging levels */ protected static $levels = array( 100 => 'DEBUG', 200 => 'INFO', 250 => 'NOTICE', 300 => 'WARNING', 400 => 'ERROR', 500 => 'CRITICAL', 550 => 'ALERT', 600 => 'EMERGENCY', ); /** * @var DateTimeZone */ protected static $timezone; /** * @var string */ protected $name; /** * The handler stack * * @var Monolog_Handler_HandlerInterface[] */ protected $handlers; /** * Processors that will process all log records * * To process records of a single handler instead, add the processor on that specific handler * * @var callable[] */ protected $processors; /** * @param string $name The logging channel * @param Monolog_Handler_HandlerInterface[] $handlers Optional stack of handlers, the first one in the array is called first, etc. * @param callable[] $processors Optional array of processors */ public function __construct($name, array $handlers = array(), array $processors = array()) { $this->name = $name; $this->handlers = $handlers; $this->processors = $processors; } /** * @return string */ public function getName() { return $this->name; } /** * Pushes a handler on to the stack. * * @param Monolog_Handler_HandlerInterface $handler */ public function pushHandler(Monolog_Handler_HandlerInterface $handler) { array_unshift($this->handlers, $handler); } /** * Pops a handler from the stack * * @return Monolog_Handler_HandlerInterface */ public function popHandler() { if (!$this->handlers) { throw new LogicException('You tried to pop from an empty handler stack.'); } return array_shift($this->handlers); } /** * Adds a processor on to the stack. * * @param callable $callback */ public function pushProcessor($callback) { if (!is_callable($callback)) { throw new InvalidArgumentException('Processors must be valid callables (callback or object with an __invoke method), '.var_export($callback, true).' given'); } array_unshift($this->processors, $callback); } /** * Removes the processor on top of the stack and returns it. * * @return callable */ public function popProcessor() { if (!$this->processors) { throw new LogicException('You tried to pop from an empty processor stack.'); } return array_shift($this->processors); } /** * Adds a log record. * * @param integer $level The logging level * @param string $message The log message * @param array $context The log context * * @return Boolean Whether the record has been processed */ public function addRecord($level, $message, array $context = array()) { if (!$this->handlers) { $this->pushHandler(new Monolog_Handler_StreamHandler('php://stderr', self::DEBUG)); } $record = array( 'message' => (string) $message, 'context' => $context, 'level' => $level, 'level_name' => self::getLevelName($level), 'channel' => $this->name, 'datetime' => $this->getCurrentTimestamp(), 'extra' => array(), ); // check if any handler will handle this message $handlerKey = null; foreach ($this->handlers as $key => $handler) { if ($handler->isHandling($record)) { $handlerKey = $key; break; } } // none found if (null === $handlerKey) { return false; } // found at least one, process message and dispatch it foreach ($this->processors as $processor) { $record = call_user_func($processor, $record); } while (isset($this->handlers[$handlerKey]) && false === $this->handlers[$handlerKey]->handle($record)) { $handlerKey++; } return true; } private function getCurrentTimestamp() { if (!self::$timezone) { self::$timezone = new DateTimeZone(date_default_timezone_get() ? date_default_timezone_get() : 'UTC'); } if (is_callable(array('DateTime', 'createFromFormat'))) { /** @handled static */ return DateTime::createFromFormat('U.u', sprintf('%.6F', microtime(true)), self::$timezone)->setTimezone(self::$timezone); } return new DateTime('now', self::$timezone); } /** * Adds a log record at the DEBUG level. * * @param string $message The log message * @param array $context The log context * * @return Boolean Whether the record has been processed */ public function addDebug($message, array $context = array()) { return $this->addRecord(self::DEBUG, $message, $context); } /** * Adds a log record at the INFO level. * * @param string $message The log message * @param array $context The log context * * @return Boolean Whether the record has been processed */ public function addInfo($message, array $context = array()) { return $this->addRecord(self::INFO, $message, $context); } /** * Adds a log record at the NOTICE level. * * @param string $message The log message * @param array $context The log context * * @return Boolean Whether the record has been processed */ public function addNotice($message, array $context = array()) { return $this->addRecord(self::NOTICE, $message, $context); } /** * Adds a log record at the WARNING level. * * @param string $message The log message * @param array $context The log context * * @return Boolean Whether the record has been processed */ public function addWarning($message, array $context = array()) { return $this->addRecord(self::WARNING, $message, $context); } /** * Adds a log record at the ERROR level. * * @param string $message The log message * @param array $context The log context * * @return Boolean Whether the record has been processed */ public function addError($message, array $context = array()) { return $this->addRecord(self::ERROR, $message, $context); } /** * Adds a log record at the CRITICAL level. * * @param string $message The log message * @param array $context The log context * * @return Boolean Whether the record has been processed */ public function addCritical($message, array $context = array()) { return $this->addRecord(self::CRITICAL, $message, $context); } /** * Adds a log record at the ALERT level. * * @param string $message The log message * @param array $context The log context * * @return Boolean Whether the record has been processed */ public function addAlert($message, array $context = array()) { return $this->addRecord(self::ALERT, $message, $context); } /** * Adds a log record at the EMERGENCY level. * * @param string $message The log message * @param array $context The log context * * @return Boolean Whether the record has been processed */ public function addEmergency($message, array $context = array()) { return $this->addRecord(self::EMERGENCY, $message, $context); } /** * Gets all supported logging levels. * * @return array Assoc array with human-readable level names => level codes. */ public static function getLevels() { return array_flip(self::$levels); } /** * Gets the name of the logging level. * * @param integer $level * * @return string */ public static function getLevelName($level) { if (!isset(self::$levels[$level])) { throw new InvalidArgumentException('Level "'.$level.'" is not defined, use one of: '.implode(', ', array_keys(self::$levels))); } return self::$levels[$level]; } /** * Checks whether the Logger has a handler that listens on the given level * * @param integer $level * * @return Boolean */ public function isHandling($level) { $record = array( 'level' => $level, ); foreach ($this->handlers as $handler) { if ($handler->isHandling($record)) { return true; } } return false; } /** * Adds a log record at an arbitrary level. * * This method allows for compatibility with common interfaces. * * @param mixed $level The log level * @param string $message The log message * @param array $context The log context * * @return Boolean Whether the record has been processed */ public function log($level, $message, array $context = array()) { if (is_string($level) && defined(__CLASS__.'::'.strtoupper($level))) { $level = constant(__CLASS__.'::'.strtoupper($level)); } return $this->addRecord($level, $message, $context); } /** * Adds a log record at the DEBUG level. * * This method allows for compatibility with common interfaces. * * @param string $message The log message * @param array $context The log context * * @return Boolean Whether the record has been processed */ public function debug($message, array $context = array()) { return $this->addRecord(self::DEBUG, $message, $context); } /** * Adds a log record at the INFO level. * * This method allows for compatibility with common interfaces. * * @param string $message The log message * @param array $context The log context * * @return Boolean Whether the record has been processed */ public function info($message, array $context = array()) { return $this->addRecord(self::INFO, $message, $context); } /** * Adds a log record at the INFO level. * * This method allows for compatibility with common interfaces. * * @param string $message The log message * @param array $context The log context * * @return Boolean Whether the record has been processed */ public function notice($message, array $context = array()) { return $this->addRecord(self::NOTICE, $message, $context); } /** * Adds a log record at the WARNING level. * * This method allows for compatibility with common interfaces. * * @param string $message The log message * @param array $context The log context * * @return Boolean Whether the record has been processed */ public function warn($message, array $context = array()) { return $this->addRecord(self::WARNING, $message, $context); } /** * Adds a log record at the WARNING level. * * This method allows for compatibility with common interfaces. * * @param string $message The log message * @param array $context The log context * * @return Boolean Whether the record has been processed */ public function warning($message, array $context = array()) { return $this->addRecord(self::WARNING, $message, $context); } /** * Adds a log record at the ERROR level. * * This method allows for compatibility with common interfaces. * * @param string $message The log message * @param array $context The log context * * @return Boolean Whether the record has been processed */ public function err($message, array $context = array()) { return $this->addRecord(self::ERROR, $message, $context); } /** * Adds a log record at the ERROR level. * * This method allows for compatibility with common interfaces. * * @param string $message The log message * @param array $context The log context * * @return Boolean Whether the record has been processed */ public function error($message, array $context = array()) { return $this->addRecord(self::ERROR, $message, $context); } /** * Adds a log record at the CRITICAL level. * * This method allows for compatibility with common interfaces. * * @param string $message The log message * @param array $context The log context * * @return Boolean Whether the record has been processed */ public function crit($message, array $context = array()) { return $this->addRecord(self::CRITICAL, $message, $context); } /** * Adds a log record at the CRITICAL level. * * This method allows for compatibility with common interfaces. * * @param string $message The log message * @param array $context The log context * * @return Boolean Whether the record has been processed */ public function critical($message, array $context = array()) { return $this->addRecord(self::CRITICAL, $message, $context); } /** * Adds a log record at the ALERT level. * * This method allows for compatibility with common interfaces. * * @param string $message The log message * @param array $context The log context * * @return Boolean Whether the record has been processed */ public function alert($message, array $context = array()) { return $this->addRecord(self::ALERT, $message, $context); } /** * Adds a log record at the EMERGENCY level. * * This method allows for compatibility with common interfaces. * * @param string $message The log message * @param array $context The log context * * @return Boolean Whether the record has been processed */ public function emerg($message, array $context = array()) { return $this->addRecord(self::EMERGENCY, $message, $context); } /** * Adds a log record at the EMERGENCY level. * * This method allows for compatibility with common interfaces. * * @param string $message The log message * @param array $context The log context * * @return Boolean Whether the record has been processed */ public function emergency($message, array $context = array()) { return $this->addRecord(self::EMERGENCY, $message, $context); } }