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<?php
/*
* This file is part of the Monolog package.
*
* (c) Jordi Boggiano <[email protected]>
*
* 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 <[email protected]>
*/
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);
}
}