File "ErrorHandler.php"
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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 error handler
*
* A facility to enable logging of runtime errors, exceptions and fatal errors.
*
* Quick setup: <code>ErrorHandler::register($logger);</code>
*
* @author Jordi Boggiano <[email protected]>
*/
class Monolog_ErrorHandler
{
private $logger;
private $previousExceptionHandler;
private $uncaughtExceptionLevel;
private $previousErrorHandler;
private $errorLevelMap;
private $fatalLevel;
private $reservedMemory;
private static $fatalErrors = array(E_ERROR, E_PARSE, E_CORE_ERROR, E_COMPILE_ERROR, E_USER_ERROR);
public function __construct(Monolog_Psr_LoggerInterface $logger)
{
$this->logger = $logger;
}
/**
* Registers a new ErrorHandler for a given Logger
*
* By default it will handle errors, exceptions and fatal errors
*
* @param Monolog_Psr_LoggerInterface $logger
* @param array|false $errorLevelMap an array of E_* constant to LogLevel::* constant mapping, or false to disable error handling
* @param int|false $exceptionLevel a LogLevel::* constant, or false to disable exception handling
* @param int|false $fatalLevel a LogLevel::* constant, or false to disable fatal error handling
*
* @return Monolog_ErrorHandler
*/
public static function register(Monolog_Psr_LoggerInterface $logger, $errorLevelMap = array(), $exceptionLevel = null, $fatalLevel = null)
{
$handler = new self($logger);
if ($errorLevelMap !== false) {
$handler->registerErrorHandler($errorLevelMap);
}
if ($exceptionLevel !== false) {
$handler->registerExceptionHandler($exceptionLevel);
}
if ($fatalLevel !== false) {
$handler->registerFatalHandler($fatalLevel);
}
return $handler;
}
public function registerExceptionHandler($level = null, $callPrevious = true)
{
$prev = set_exception_handler(array($this, 'handleException'));
$this->uncaughtExceptionLevel = $level;
if ($callPrevious && $prev) {
$this->previousExceptionHandler = $prev;
}
}
public function registerErrorHandler(array $levelMap = array(), $callPrevious = true, $errorTypes = -1)
{
$prev = set_error_handler(array($this, 'handleError'), $errorTypes);
$this->errorLevelMap = $this->arrayReplace($this->defaultErrorLevelMap(), $levelMap);
if ($callPrevious) {
$this->previousErrorHandler = $prev ? $prev : true;
}
}
/**
* Backport of PHP >=5.3 function array_replace
*
* @link http://www.php.net/manual/en/function.array-replace.php#94458
*/
private function arrayReplace(array $array, array $array1)
{
$args = func_get_args();
$count = func_num_args();
for ($i = 0; $i < $count; ++$i) {
if (is_array($args[$i])) {
foreach ($args[$i] as $key => $val) {
$array[$key] = $val;
}
} else {
trigger_error(
__FUNCTION__.'(): Argument #'.($i + 1).' is not an array',
E_USER_WARNING
);
return null;
}
}
return $array;
}
public function registerFatalHandler($level = null, $reservedMemorySize = 20)
{
register_shutdown_function(array($this, 'handleFatalError'));
$this->reservedMemory = str_repeat(' ', 1024 * $reservedMemorySize);
$this->fatalLevel = $level;
}
protected function defaultErrorLevelMap()
{
$map = array(
E_ERROR => Monolog_Psr_LogLevel::CRITICAL,
E_WARNING => Monolog_Psr_LogLevel::WARNING,
E_PARSE => Monolog_Psr_LogLevel::ALERT,
E_NOTICE => Monolog_Psr_LogLevel::NOTICE,
E_CORE_ERROR => Monolog_Psr_LogLevel::CRITICAL,
E_CORE_WARNING => Monolog_Psr_LogLevel::WARNING,
E_COMPILE_ERROR => Monolog_Psr_LogLevel::ALERT,
E_COMPILE_WARNING => Monolog_Psr_LogLevel::WARNING,
E_USER_ERROR => Monolog_Psr_LogLevel::ERROR,
E_USER_WARNING => Monolog_Psr_LogLevel::WARNING,
E_USER_NOTICE => Monolog_Psr_LogLevel::NOTICE,
E_STRICT => Monolog_Psr_LogLevel::NOTICE,
E_RECOVERABLE_ERROR => Monolog_Psr_LogLevel::ERROR,
);
if (version_compare(PHP_VERSION, '5.3', '>=')) {
$map[E_USER_DEPRECATED] = Monolog_Psr_LogLevel::NOTICE;
$map[E_DEPRECATED] = Monolog_Psr_LogLevel::NOTICE;
}
return $map;
}
/**
* @private
*/
public function handleException($e)
{
$this->logger->log(
$this->uncaughtExceptionLevel === null ? Monolog_Psr_LogLevel::ERROR : $this->uncaughtExceptionLevel,
'Uncaught exception',
array('exception' => $e)
);
if ($this->previousExceptionHandler) {
call_user_func($this->previousExceptionHandler, $e);
}
}
/**
* @private
*/
public function handleError($code, $message, $file = '', $line = 0, $context = array())
{
if (!(error_reporting() & $code)) {
return;
}
$level = isset($this->errorLevelMap[$code]) ? $this->errorLevelMap[$code] : Monolog_Psr_LogLevel::CRITICAL;
$this->logger->log($level, self::codeToString($code).': '.$message, array('code' => $code, 'message' => $message, 'file' => $file, 'line' => $line));
if ($this->previousErrorHandler === true) {
return false;
} elseif ($this->previousErrorHandler) {
return call_user_func($this->previousErrorHandler, $code, $message, $file, $line, $context);
}
}
/**
* @private
*/
public function handleFatalError()
{
$this->reservedMemory = null;
$lastError = error_get_last();
if ($lastError && in_array($lastError['type'], self::$fatalErrors)) {
$this->logger->log(
$this->fatalLevel === null ? Monolog_Psr_LogLevel::ALERT : $this->fatalLevel,
'Fatal Error ('.self::codeToString($lastError['type']).'): '.$lastError['message'],
array('code' => $lastError['type'], 'message' => $lastError['message'], 'file' => $lastError['file'], 'line' => $lastError['line'])
);
}
}
private static function codeToString($code)
{
switch ($code) {
case E_ERROR:
return 'E_ERROR';
case E_WARNING:
return 'E_WARNING';
case E_PARSE:
return 'E_PARSE';
case E_NOTICE:
return 'E_NOTICE';
case E_CORE_ERROR:
return 'E_CORE_ERROR';
case E_CORE_WARNING:
return 'E_CORE_WARNING';
case E_COMPILE_ERROR:
return 'E_COMPILE_ERROR';
case E_COMPILE_WARNING:
return 'E_COMPILE_WARNING';
case E_USER_ERROR:
return 'E_USER_ERROR';
case E_USER_WARNING:
return 'E_USER_WARNING';
case E_USER_NOTICE:
return 'E_USER_NOTICE';
case E_STRICT:
return 'E_STRICT';
case E_RECOVERABLE_ERROR:
return 'E_RECOVERABLE_ERROR';
case E_DEPRECATED:
return 'E_DEPRECATED';
case E_USER_DEPRECATED:
return 'E_USER_DEPRECATED';
}
if (version_compare(PHP_VERSION, '5.3', '>=')) {
switch ($code) {
case E_DEPRECATED:
return 'E_DEPRECATED';
case E_USER_DEPRECATED:
return 'E_USER_DEPRECATED';
}
}
return 'Unknown PHP error';
}
}