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<?php |
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/* |
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* LogLaddy |
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* |
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* I carry a log – yes. Is it funny to you? It is not to me. |
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* Behind all things are reasons. Reasons can even explain the absurd. |
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* |
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* LogLaddy manages error reporting |
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* PSR-3 Compliant, with a NICE bonus |
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*/ |
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namespace HexMakina\LogLaddy; |
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// Debugger |
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use Psr\Log\LogLevel; |
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use Psr\Log\InvalidArgumentException; |
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use HexMakina\Debugger\Debugger; |
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use HexMakina\BlackBox\StateAgentInterface; |
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class LogLaddy extends \Psr\Log\AbstractLogger |
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{ |
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/** |
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* @var array<int,string> $level_mapping |
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*/ |
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private static array $level_mapping = []; |
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private ?StateAgentInterface $state_agent; |
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public function __construct(StateAgentInterface $stateAgent = null) |
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{ |
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$this->state_agent = $stateAgent; |
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$this->setHandlers(); |
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} |
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public function setHandlers(): void |
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{ |
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set_error_handler( |
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function(int $level, string $message, string $file = '', int $line = 0): bool { |
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return $this->errorHandler($level, $message, $file, $line); |
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} |
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); |
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set_exception_handler(function (\Throwable $throwable) : bool { |
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return $this->exceptionHandler($throwable); |
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}); |
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} |
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public function restoreHandlers(): void |
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{ |
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restore_error_handler(); |
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restore_exception_handler(); |
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} |
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/** |
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* handler for errors |
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* use set_error_handler([$instance, 'errorHandler']); |
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* |
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* https://www.php.net/manual/en/function.set-error-handler |
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* |
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*/ |
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public function errorHandler(int $level, string $message, string $file = '', int $line = 0): bool |
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{ |
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$loglevel = self::mapErrorLevelToLogLevel($level); |
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$this->{$loglevel}($message); |
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return true; |
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} |
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/* |
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* handler for throwables, |
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* use set_exception_handler([$instance, 'exceptionHandler']); |
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*/ |
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public function exceptionHandler(\Throwable $throwable): bool |
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{ |
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$this->critical($throwable->getMessage(), ['exception' => $throwable]); |
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return true; |
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} |
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public function log($level, $message, array $context = []): void |
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{ |
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switch ($level) { |
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case LogLevel::DEBUG: |
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Debugger::visualDump($message, $level, true); |
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break; |
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case LogLevel::INFO: |
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case LogLevel::NOTICE: |
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case LogLevel::WARNING: |
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if (is_null($this->state_agent)) { |
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Debugger::visualDump($message, $level, true); |
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} else { |
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$this->state_agent->addMessage($level, $message, $context); |
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} |
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break; |
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case LogLevel::ERROR: |
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case LogLevel::CRITICAL: |
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case LogLevel::ALERT: |
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case LogLevel::EMERGENCY: |
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if (isset($context['exception']) && $context['exception'] instanceof \Throwable) { |
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$message = $context['exception']; |
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$level = 'Uncaught ' . get_class($context['exception']); |
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} |
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Debugger::visualDump($message, $level, true); |
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http_response_code(500); |
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die; |
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default: |
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throw new \Psr\Log\InvalidArgumentException('UNDEFINED_LOGLEVEL_' . $level); |
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} |
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} |
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private static function mapErrorLevelToLogLevel(int $level): string |
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{ |
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// http://php.net/manual/en/errorfunc.constants.php |
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if (empty(self::$level_mapping)) { |
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self::createErrorLevelMap(); |
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} |
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if (!isset(self::$level_mapping[$level])) { |
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throw new \Exception(sprintf('%s(%d): %d is unknown', __FUNCTION__, $level, $level)); |
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} |
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return self::$level_mapping[$level]; |
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} |
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/** Error level meaning, from \Psr\Log\LogLevel.php |
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* |
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* const EMERGENCY = 'emergency'; |
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* // System is unusable. |
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* const ALERT = 'alert'; |
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* // Action must be taken immediately, Example: Entire website down, database unavailable, etc. |
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* const CRITICAL = 'critical'; |
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* // Application component unavailable, unexpected exception. |
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* const ERROR = 'error'; |
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* // Run time errors that do not require immediate action |
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* const WARNING = 'warning'; |
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* // Exceptional occurrences that are not errors, undesirable things that are not necessarily wrong |
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* const NOTICE = 'notice'; |
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* // Normal but significant events. |
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* const INFO = 'info'; |
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* // Interesting events. User logs in, SQL logs. |
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* const DEBUG = 'debug'; |
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* // Detailed debug information. |
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* |
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* |
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* Error level mapping from \Psr\Log\LogLevel.php & http://php.net/manual/en/errorfunc.constants.php |
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*/ |
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private static function createErrorLevelMap(): void |
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{ |
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$critical = array_fill_keys( |
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[E_ERROR, E_PARSE, E_CORE_ERROR, E_COMPILE_ERROR, E_USER_ERROR, E_RECOVERABLE_ERROR], |
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LogLevel::CRITICAL |
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); |
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$error = array_fill_keys( |
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[E_WARNING, E_CORE_WARNING, E_COMPILE_WARNING, E_USER_WARNING], |
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LogLevel::ERROR |
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); |
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$debug = array_fill_keys( |
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[E_NOTICE, E_USER_NOTICE, E_STRICT,E_DEPRECATED,E_USER_DEPRECATED,E_ALL], |
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LogLevel::DEBUG |
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); |
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self::$level_mapping = $critical + $error + $debug; |
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} |
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} |
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