792 lines
22 KiB
PHP
792 lines
22 KiB
PHP
<?php
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/*
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* This file is part of the Monolog package.
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*
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* (c) Jordi Boggiano <j.boggiano@seld.be>
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*
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* For the full copyright and license information, please view the LICENSE
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* file that was distributed with this source code.
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*/
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namespace Monolog;
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use Monolog\Handler\HandlerInterface;
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use Monolog\Handler\StreamHandler;
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use Psr\Log\LoggerInterface;
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use Psr\Log\InvalidArgumentException;
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use Exception;
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/**
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* Monolog log channel
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*
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* It contains a stack of Handlers and a stack of Processors,
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* and uses them to store records that are added to it.
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*
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* @author Jordi Boggiano <j.boggiano@seld.be>
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*/
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class Logger implements LoggerInterface, ResettableInterface
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{
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/**
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* Detailed debug information
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*/
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const DEBUG = 100;
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/**
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* Interesting events
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*
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* Examples: User logs in, SQL logs.
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*/
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const INFO = 200;
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/**
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* Uncommon events
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*/
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const NOTICE = 250;
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/**
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* Exceptional occurrences that are not errors
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*
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* Examples: Use of deprecated APIs, poor use of an API,
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* undesirable things that are not necessarily wrong.
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*/
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const WARNING = 300;
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/**
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* Runtime errors
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*/
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const ERROR = 400;
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/**
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* Critical conditions
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*
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* Example: Application component unavailable, unexpected exception.
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*/
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const CRITICAL = 500;
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/**
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* Action must be taken immediately
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*
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* Example: Entire website down, database unavailable, etc.
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* This should trigger the SMS alerts and wake you up.
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*/
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const ALERT = 550;
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/**
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* Urgent alert.
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*/
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const EMERGENCY = 600;
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/**
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* Monolog API version
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*
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* This is only bumped when API breaks are done and should
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* follow the major version of the library
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*
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* @var int
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*/
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const API = 1;
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/**
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* Logging levels from syslog protocol defined in RFC 5424
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*
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* @var array $levels Logging levels
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*/
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protected static $levels = array(
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self::DEBUG => 'DEBUG',
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self::INFO => 'INFO',
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self::NOTICE => 'NOTICE',
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self::WARNING => 'WARNING',
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self::ERROR => 'ERROR',
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self::CRITICAL => 'CRITICAL',
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self::ALERT => 'ALERT',
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self::EMERGENCY => 'EMERGENCY',
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);
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/**
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* @var \DateTimeZone
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*/
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protected static $timezone;
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/**
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* @var string
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*/
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protected $name;
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/**
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* The handler stack
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*
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* @var HandlerInterface[]
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*/
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protected $handlers;
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/**
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* Processors that will process all log records
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*
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* To process records of a single handler instead, add the processor on that specific handler
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*
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* @var callable[]
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*/
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protected $processors;
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/**
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* @var bool
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*/
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protected $microsecondTimestamps = true;
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/**
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* @var callable
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*/
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protected $exceptionHandler;
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/**
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* @param string $name The logging channel
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* @param HandlerInterface[] $handlers Optional stack of handlers, the first one in the array is called first, etc.
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* @param callable[] $processors Optional array of processors
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*/
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public function __construct($name, array $handlers = array(), array $processors = array())
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{
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$this->name = $name;
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$this->setHandlers($handlers);
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$this->processors = $processors;
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}
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/**
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* @return string
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*/
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public function getName()
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{
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return $this->name;
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}
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/**
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* Return a new cloned instance with the name changed
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*
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* @return static
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*/
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public function withName($name)
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{
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$new = clone $this;
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$new->name = $name;
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return $new;
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}
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/**
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* Pushes a handler on to the stack.
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*
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* @param HandlerInterface $handler
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* @return $this
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*/
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public function pushHandler(HandlerInterface $handler)
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{
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array_unshift($this->handlers, $handler);
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return $this;
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}
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/**
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* Pops a handler from the stack
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*
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* @return HandlerInterface
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*/
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public function popHandler()
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{
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if (!$this->handlers) {
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throw new \LogicException('You tried to pop from an empty handler stack.');
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}
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return array_shift($this->handlers);
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}
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/**
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* Set handlers, replacing all existing ones.
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*
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* If a map is passed, keys will be ignored.
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*
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* @param HandlerInterface[] $handlers
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* @return $this
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*/
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public function setHandlers(array $handlers)
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{
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$this->handlers = array();
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foreach (array_reverse($handlers) as $handler) {
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$this->pushHandler($handler);
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}
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return $this;
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}
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/**
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* @return HandlerInterface[]
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*/
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public function getHandlers()
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{
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return $this->handlers;
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}
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/**
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* Adds a processor on to the stack.
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*
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* @param callable $callback
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* @return $this
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*/
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public function pushProcessor($callback)
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{
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if (!is_callable($callback)) {
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throw new \InvalidArgumentException('Processors must be valid callables (callback or object with an __invoke method), '.var_export($callback, true).' given');
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}
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array_unshift($this->processors, $callback);
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return $this;
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}
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/**
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* Removes the processor on top of the stack and returns it.
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*
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* @return callable
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*/
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public function popProcessor()
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{
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if (!$this->processors) {
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throw new \LogicException('You tried to pop from an empty processor stack.');
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}
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return array_shift($this->processors);
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}
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/**
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* @return callable[]
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*/
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public function getProcessors()
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{
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return $this->processors;
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}
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/**
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* Control the use of microsecond resolution timestamps in the 'datetime'
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* member of new records.
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*
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* Generating microsecond resolution timestamps by calling
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* microtime(true), formatting the result via sprintf() and then parsing
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* the resulting string via \DateTime::createFromFormat() can incur
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* a measurable runtime overhead vs simple usage of DateTime to capture
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* a second resolution timestamp in systems which generate a large number
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* of log events.
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*
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* @param bool $micro True to use microtime() to create timestamps
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*/
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public function useMicrosecondTimestamps($micro)
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{
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$this->microsecondTimestamps = (bool) $micro;
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}
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/**
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* Adds a log record.
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*
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* @param int $level The logging level
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* @param string $message The log message
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* @param array $context The log context
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* @return bool Whether the record has been processed
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*/
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public function addRecord($level, $message, array $context = array())
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{
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if (!$this->handlers) {
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$this->pushHandler(new StreamHandler('php://stderr', static::DEBUG));
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}
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$levelName = static::getLevelName($level);
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// check if any handler will handle this message so we can return early and save cycles
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$handlerKey = null;
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reset($this->handlers);
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while ($handler = current($this->handlers)) {
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if ($handler->isHandling(array('level' => $level))) {
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$handlerKey = key($this->handlers);
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break;
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}
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next($this->handlers);
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}
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if (null === $handlerKey) {
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return false;
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}
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if (!static::$timezone) {
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static::$timezone = new \DateTimeZone(date_default_timezone_get() ?: 'UTC');
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}
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// php7.1+ always has microseconds enabled, so we do not need this hack
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if ($this->microsecondTimestamps && PHP_VERSION_ID < 70100) {
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$ts = \DateTime::createFromFormat('U.u', sprintf('%.6F', microtime(true)), static::$timezone);
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} else {
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$ts = new \DateTime(null, static::$timezone);
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}
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$ts->setTimezone(static::$timezone);
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$record = array(
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'message' => (string) $message,
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'context' => $context,
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'level' => $level,
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'level_name' => $levelName,
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'channel' => $this->name,
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'datetime' => $ts,
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'extra' => array(),
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);
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try {
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foreach ($this->processors as $processor) {
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$record = call_user_func($processor, $record);
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}
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while ($handler = current($this->handlers)) {
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if (true === $handler->handle($record)) {
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break;
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}
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next($this->handlers);
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}
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} catch (Exception $e) {
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$this->handleException($e, $record);
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}
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return true;
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}
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/**
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* Ends a log cycle and frees all resources used by handlers.
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*
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* Closing a Handler means flushing all buffers and freeing any open resources/handles.
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* Handlers that have been closed should be able to accept log records again and re-open
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* themselves on demand, but this may not always be possible depending on implementation.
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*
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* This is useful at the end of a request and will be called automatically on every handler
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* when they get destructed.
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*/
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public function close()
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{
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foreach ($this->handlers as $handler) {
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if (method_exists($handler, 'close')) {
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$handler->close();
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}
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}
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}
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/**
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* Ends a log cycle and resets all handlers and processors to their initial state.
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*
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* Resetting a Handler or a Processor means flushing/cleaning all buffers, resetting internal
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* state, and getting it back to a state in which it can receive log records again.
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*
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* This is useful in case you want to avoid logs leaking between two requests or jobs when you
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* have a long running process like a worker or an application server serving multiple requests
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* in one process.
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*/
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public function reset()
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{
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foreach ($this->handlers as $handler) {
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if ($handler instanceof ResettableInterface) {
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$handler->reset();
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}
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}
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foreach ($this->processors as $processor) {
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if ($processor instanceof ResettableInterface) {
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$processor->reset();
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}
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}
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}
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/**
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* Adds a log record at the DEBUG level.
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*
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* @param string $message The log message
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* @param array $context The log context
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* @return bool Whether the record has been processed
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*/
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public function addDebug($message, array $context = array())
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{
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return $this->addRecord(static::DEBUG, $message, $context);
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}
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/**
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* Adds a log record at the INFO level.
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*
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* @param string $message The log message
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* @param array $context The log context
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* @return bool Whether the record has been processed
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*/
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public function addInfo($message, array $context = array())
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{
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return $this->addRecord(static::INFO, $message, $context);
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}
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/**
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* Adds a log record at the NOTICE level.
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*
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* @param string $message The log message
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* @param array $context The log context
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* @return bool Whether the record has been processed
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*/
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public function addNotice($message, array $context = array())
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{
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return $this->addRecord(static::NOTICE, $message, $context);
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}
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/**
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* Adds a log record at the WARNING level.
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*
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* @param string $message The log message
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* @param array $context The log context
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* @return bool Whether the record has been processed
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*/
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public function addWarning($message, array $context = array())
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{
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return $this->addRecord(static::WARNING, $message, $context);
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}
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/**
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* Adds a log record at the ERROR level.
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*
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* @param string $message The log message
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* @param array $context The log context
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* @return bool Whether the record has been processed
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*/
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public function addError($message, array $context = array())
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{
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return $this->addRecord(static::ERROR, $message, $context);
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}
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/**
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* Adds a log record at the CRITICAL level.
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*
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* @param string $message The log message
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* @param array $context The log context
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* @return bool Whether the record has been processed
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*/
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public function addCritical($message, array $context = array())
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{
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return $this->addRecord(static::CRITICAL, $message, $context);
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}
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/**
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* Adds a log record at the ALERT level.
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*
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* @param string $message The log message
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* @param array $context The log context
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* @return bool Whether the record has been processed
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*/
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public function addAlert($message, array $context = array())
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{
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return $this->addRecord(static::ALERT, $message, $context);
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}
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/**
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* Adds a log record at the EMERGENCY level.
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*
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* @param string $message The log message
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* @param array $context The log context
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* @return bool Whether the record has been processed
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*/
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public function addEmergency($message, array $context = array())
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{
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return $this->addRecord(static::EMERGENCY, $message, $context);
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}
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/**
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* Gets all supported logging levels.
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*
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* @return array Assoc array with human-readable level names => level codes.
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*/
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public static function getLevels()
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{
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return array_flip(static::$levels);
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}
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/**
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* Gets the name of the logging level.
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*
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* @param int $level
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* @return string
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*/
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public static function getLevelName($level)
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{
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if (!isset(static::$levels[$level])) {
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throw new InvalidArgumentException('Level "'.$level.'" is not defined, use one of: '.implode(', ', array_keys(static::$levels)));
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}
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return static::$levels[$level];
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}
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/**
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* Converts PSR-3 levels to Monolog ones if necessary
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*
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* @param string|int Level number (monolog) or name (PSR-3)
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* @return int
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*/
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public static function toMonologLevel($level)
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{
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if (is_string($level) && defined(__CLASS__.'::'.strtoupper($level))) {
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return constant(__CLASS__.'::'.strtoupper($level));
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}
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return $level;
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}
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/**
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* Checks whether the Logger has a handler that listens on the given level
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*
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* @param int $level
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* @return bool
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*/
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public function isHandling($level)
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{
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$record = array(
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'level' => $level,
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);
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foreach ($this->handlers as $handler) {
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if ($handler->isHandling($record)) {
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return true;
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}
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}
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return false;
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}
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/**
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* Set a custom exception handler
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*
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* @param callable $callback
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* @return $this
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*/
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public function setExceptionHandler($callback)
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{
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if (!is_callable($callback)) {
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throw new \InvalidArgumentException('Exception handler must be valid callable (callback or object with an __invoke method), '.var_export($callback, true).' given');
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}
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$this->exceptionHandler = $callback;
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return $this;
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}
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/**
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* @return callable
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*/
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public function getExceptionHandler()
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{
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return $this->exceptionHandler;
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}
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|
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/**
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* Delegates exception management to the custom exception handler,
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* or throws the exception if no custom handler is set.
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*/
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protected function handleException(Exception $e, array $record)
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{
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if (!$this->exceptionHandler) {
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throw $e;
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}
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call_user_func($this->exceptionHandler, $e, $record);
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}
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/**
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* Adds a log record at an arbitrary level.
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*
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|
* This method allows for compatibility with common interfaces.
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|
*
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* @param mixed $level The log level
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* @param string $message The log message
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* @param array $context The log context
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* @return bool Whether the record has been processed
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*/
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public function log($level, $message, array $context = array())
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{
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$level = static::toMonologLevel($level);
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return $this->addRecord($level, $message, $context);
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}
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|
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/**
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|
* Adds a log record at the DEBUG level.
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|
*
|
|
* This method allows for compatibility with common interfaces.
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|
*
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* @param string $message The log message
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* @param array $context The log context
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* @return bool Whether the record has been processed
|
|
*/
|
|
public function debug($message, array $context = array())
|
|
{
|
|
return $this->addRecord(static::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 $context The log context
|
|
* @return bool Whether the record has been processed
|
|
*/
|
|
public function info($message, array $context = array())
|
|
{
|
|
return $this->addRecord(static::INFO, $message, $context);
|
|
}
|
|
|
|
/**
|
|
* Adds a log record at the NOTICE level.
|
|
*
|
|
* This method allows for compatibility with common interfaces.
|
|
*
|
|
* @param string $message The log message
|
|
* @param array $context The log context
|
|
* @return bool Whether the record has been processed
|
|
*/
|
|
public function notice($message, array $context = array())
|
|
{
|
|
return $this->addRecord(static::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 $context The log context
|
|
* @return bool Whether the record has been processed
|
|
*/
|
|
public function warn($message, array $context = array())
|
|
{
|
|
return $this->addRecord(static::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 $context The log context
|
|
* @return bool Whether the record has been processed
|
|
*/
|
|
public function warning($message, array $context = array())
|
|
{
|
|
return $this->addRecord(static::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 $context The log context
|
|
* @return bool Whether the record has been processed
|
|
*/
|
|
public function err($message, array $context = array())
|
|
{
|
|
return $this->addRecord(static::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 $context The log context
|
|
* @return bool Whether the record has been processed
|
|
*/
|
|
public function error($message, array $context = array())
|
|
{
|
|
return $this->addRecord(static::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 $context The log context
|
|
* @return bool Whether the record has been processed
|
|
*/
|
|
public function crit($message, array $context = array())
|
|
{
|
|
return $this->addRecord(static::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 $context The log context
|
|
* @return bool Whether the record has been processed
|
|
*/
|
|
public function critical($message, array $context = array())
|
|
{
|
|
return $this->addRecord(static::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 $context The log context
|
|
* @return bool Whether the record has been processed
|
|
*/
|
|
public function alert($message, array $context = array())
|
|
{
|
|
return $this->addRecord(static::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 $context The log context
|
|
* @return bool Whether the record has been processed
|
|
*/
|
|
public function emerg($message, array $context = array())
|
|
{
|
|
return $this->addRecord(static::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 $context The log context
|
|
* @return bool Whether the record has been processed
|
|
*/
|
|
public function emergency($message, array $context = array())
|
|
{
|
|
return $this->addRecord(static::EMERGENCY, $message, $context);
|
|
}
|
|
|
|
/**
|
|
* Set the timezone to be used for the timestamp of log records.
|
|
*
|
|
* This is stored globally for all Logger instances
|
|
*
|
|
* @param \DateTimeZone $tz Timezone object
|
|
*/
|
|
public static function setTimezone(\DateTimeZone $tz)
|
|
{
|
|
self::$timezone = $tz;
|
|
}
|
|
}
|