799 lines
29 KiB
PHP
799 lines
29 KiB
PHP
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<?php
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/*
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* This file is part of the Symfony package.
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*
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* (c) Fabien Potencier <fabien@symfony.com>
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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 Symfony\Component\ErrorHandler;
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use Psr\Log\LoggerInterface;
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use Psr\Log\LogLevel;
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use Symfony\Component\ErrorHandler\Error\FatalError;
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use Symfony\Component\ErrorHandler\Error\OutOfMemoryError;
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use Symfony\Component\ErrorHandler\ErrorEnhancer\ClassNotFoundErrorEnhancer;
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use Symfony\Component\ErrorHandler\ErrorEnhancer\ErrorEnhancerInterface;
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use Symfony\Component\ErrorHandler\ErrorEnhancer\UndefinedFunctionErrorEnhancer;
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use Symfony\Component\ErrorHandler\ErrorEnhancer\UndefinedMethodErrorEnhancer;
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use Symfony\Component\ErrorHandler\ErrorRenderer\CliErrorRenderer;
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use Symfony\Component\ErrorHandler\ErrorRenderer\HtmlErrorRenderer;
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use Symfony\Component\ErrorHandler\Exception\SilencedErrorContext;
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/**
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* A generic ErrorHandler for the PHP engine.
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*
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* Provides five bit fields that control how errors are handled:
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* - thrownErrors: errors thrown as \ErrorException
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* - loggedErrors: logged errors, when not @-silenced
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* - scopedErrors: errors thrown or logged with their local context
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* - tracedErrors: errors logged with their stack trace
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* - screamedErrors: never @-silenced errors
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*
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* Each error level can be logged by a dedicated PSR-3 logger object.
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* Screaming only applies to logging.
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* Throwing takes precedence over logging.
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* Uncaught exceptions are logged as E_ERROR.
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* E_DEPRECATED and E_USER_DEPRECATED levels never throw.
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* E_RECOVERABLE_ERROR and E_USER_ERROR levels always throw.
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* Non catchable errors that can be detected at shutdown time are logged when the scream bit field allows so.
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* As errors have a performance cost, repeated errors are all logged, so that the developer
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* can see them and weight them as more important to fix than others of the same level.
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*
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* @author Nicolas Grekas <p@tchwork.com>
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* @author Grégoire Pineau <lyrixx@lyrixx.info>
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*
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* @final
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*/
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class ErrorHandler
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{
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private $levels = [
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\E_DEPRECATED => 'Deprecated',
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\E_USER_DEPRECATED => 'User Deprecated',
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\E_NOTICE => 'Notice',
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\E_USER_NOTICE => 'User Notice',
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\E_STRICT => 'Runtime Notice',
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\E_WARNING => 'Warning',
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\E_USER_WARNING => 'User Warning',
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\E_COMPILE_WARNING => 'Compile Warning',
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\E_CORE_WARNING => 'Core Warning',
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\E_USER_ERROR => 'User Error',
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\E_RECOVERABLE_ERROR => 'Catchable Fatal Error',
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\E_COMPILE_ERROR => 'Compile Error',
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\E_PARSE => 'Parse Error',
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\E_ERROR => 'Error',
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\E_CORE_ERROR => 'Core Error',
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];
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private $loggers = [
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\E_DEPRECATED => [null, LogLevel::INFO],
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\E_USER_DEPRECATED => [null, LogLevel::INFO],
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\E_NOTICE => [null, LogLevel::WARNING],
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\E_USER_NOTICE => [null, LogLevel::WARNING],
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\E_STRICT => [null, LogLevel::WARNING],
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\E_WARNING => [null, LogLevel::WARNING],
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\E_USER_WARNING => [null, LogLevel::WARNING],
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\E_COMPILE_WARNING => [null, LogLevel::WARNING],
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\E_CORE_WARNING => [null, LogLevel::WARNING],
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\E_USER_ERROR => [null, LogLevel::CRITICAL],
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\E_RECOVERABLE_ERROR => [null, LogLevel::CRITICAL],
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\E_COMPILE_ERROR => [null, LogLevel::CRITICAL],
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\E_PARSE => [null, LogLevel::CRITICAL],
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\E_ERROR => [null, LogLevel::CRITICAL],
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\E_CORE_ERROR => [null, LogLevel::CRITICAL],
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];
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private $thrownErrors = 0x1FFF; // E_ALL - E_DEPRECATED - E_USER_DEPRECATED
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private $scopedErrors = 0x1FFF; // E_ALL - E_DEPRECATED - E_USER_DEPRECATED
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private $tracedErrors = 0x77FB; // E_ALL - E_STRICT - E_PARSE
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private $screamedErrors = 0x55; // E_ERROR + E_CORE_ERROR + E_COMPILE_ERROR + E_PARSE
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private $loggedErrors = 0;
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private $configureException;
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private $debug;
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private $isRecursive = 0;
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private $isRoot = false;
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private $exceptionHandler;
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private $bootstrappingLogger;
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private static $reservedMemory;
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private static $toStringException;
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private static $silencedErrorCache = [];
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private static $silencedErrorCount = 0;
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private static $exitCode = 0;
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/**
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* Registers the error handler.
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*/
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public static function register(self $handler = null, bool $replace = true): self
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{
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if (null === self::$reservedMemory) {
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self::$reservedMemory = str_repeat('x', 32768);
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register_shutdown_function(__CLASS__.'::handleFatalError');
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}
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if ($handlerIsNew = null === $handler) {
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$handler = new static();
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}
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if (null === $prev = set_error_handler([$handler, 'handleError'])) {
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restore_error_handler();
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// Specifying the error types earlier would expose us to https://bugs.php.net/63206
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set_error_handler([$handler, 'handleError'], $handler->thrownErrors | $handler->loggedErrors);
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$handler->isRoot = true;
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}
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if ($handlerIsNew && \is_array($prev) && $prev[0] instanceof self) {
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$handler = $prev[0];
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$replace = false;
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}
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if (!$replace && $prev) {
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restore_error_handler();
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$handlerIsRegistered = \is_array($prev) && $handler === $prev[0];
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} else {
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$handlerIsRegistered = true;
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}
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if (\is_array($prev = set_exception_handler([$handler, 'handleException'])) && $prev[0] instanceof self) {
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restore_exception_handler();
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if (!$handlerIsRegistered) {
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$handler = $prev[0];
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} elseif ($handler !== $prev[0] && $replace) {
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set_exception_handler([$handler, 'handleException']);
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$p = $prev[0]->setExceptionHandler(null);
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$handler->setExceptionHandler($p);
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$prev[0]->setExceptionHandler($p);
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}
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} else {
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$handler->setExceptionHandler($prev ?? [$handler, 'renderException']);
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}
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$handler->throwAt(\E_ALL & $handler->thrownErrors, true);
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return $handler;
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}
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/**
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* Calls a function and turns any PHP error into \ErrorException.
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*
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* @return mixed What $function(...$arguments) returns
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*
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* @throws \ErrorException When $function(...$arguments) triggers a PHP error
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*/
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public static function call(callable $function, ...$arguments)
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{
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set_error_handler(static function (int $type, string $message, string $file, int $line) {
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if (__FILE__ === $file) {
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$trace = debug_backtrace(\DEBUG_BACKTRACE_IGNORE_ARGS, 3);
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$file = $trace[2]['file'] ?? $file;
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$line = $trace[2]['line'] ?? $line;
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}
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throw new \ErrorException($message, 0, $type, $file, $line);
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});
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try {
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return $function(...$arguments);
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} finally {
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restore_error_handler();
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}
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}
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public function __construct(BufferingLogger $bootstrappingLogger = null, bool $debug = false)
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{
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if ($bootstrappingLogger) {
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$this->bootstrappingLogger = $bootstrappingLogger;
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$this->setDefaultLogger($bootstrappingLogger);
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}
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$traceReflector = new \ReflectionProperty(\Exception::class, 'trace');
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$traceReflector->setAccessible(true);
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$this->configureException = \Closure::bind(static function ($e, $trace, $file = null, $line = null) use ($traceReflector) {
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$traceReflector->setValue($e, $trace);
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$e->file = $file ?? $e->file;
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$e->line = $line ?? $e->line;
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}, null, new class() extends \Exception {
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});
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$this->debug = $debug;
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}
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/**
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* Sets a logger to non assigned errors levels.
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*
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* @param LoggerInterface $logger A PSR-3 logger to put as default for the given levels
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* @param array|int|null $levels An array map of E_* to LogLevel::* or an integer bit field of E_* constants
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* @param bool $replace Whether to replace or not any existing logger
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*/
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public function setDefaultLogger(LoggerInterface $logger, $levels = \E_ALL, bool $replace = false): void
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{
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$loggers = [];
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if (\is_array($levels)) {
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foreach ($levels as $type => $logLevel) {
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if (empty($this->loggers[$type][0]) || $replace || $this->loggers[$type][0] === $this->bootstrappingLogger) {
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$loggers[$type] = [$logger, $logLevel];
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}
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}
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} else {
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if (null === $levels) {
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$levels = \E_ALL;
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}
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foreach ($this->loggers as $type => $log) {
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if (($type & $levels) && (empty($log[0]) || $replace || $log[0] === $this->bootstrappingLogger)) {
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$log[0] = $logger;
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$loggers[$type] = $log;
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}
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}
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}
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$this->setLoggers($loggers);
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}
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/**
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* Sets a logger for each error level.
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*
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* @param array $loggers Error levels to [LoggerInterface|null, LogLevel::*] map
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*
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* @return array The previous map
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*
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* @throws \InvalidArgumentException
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*/
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public function setLoggers(array $loggers): array
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{
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$prevLogged = $this->loggedErrors;
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$prev = $this->loggers;
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$flush = [];
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foreach ($loggers as $type => $log) {
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if (!isset($prev[$type])) {
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throw new \InvalidArgumentException('Unknown error type: '.$type);
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}
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if (!\is_array($log)) {
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$log = [$log];
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} elseif (!\array_key_exists(0, $log)) {
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throw new \InvalidArgumentException('No logger provided.');
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}
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if (null === $log[0]) {
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$this->loggedErrors &= ~$type;
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} elseif ($log[0] instanceof LoggerInterface) {
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$this->loggedErrors |= $type;
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} else {
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throw new \InvalidArgumentException('Invalid logger provided.');
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}
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$this->loggers[$type] = $log + $prev[$type];
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if ($this->bootstrappingLogger && $prev[$type][0] === $this->bootstrappingLogger) {
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$flush[$type] = $type;
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}
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}
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$this->reRegister($prevLogged | $this->thrownErrors);
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if ($flush) {
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foreach ($this->bootstrappingLogger->cleanLogs() as $log) {
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$type = ThrowableUtils::getSeverity($log[2]['exception']);
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if (!isset($flush[$type])) {
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$this->bootstrappingLogger->log($log[0], $log[1], $log[2]);
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} elseif ($this->loggers[$type][0]) {
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$this->loggers[$type][0]->log($this->loggers[$type][1], $log[1], $log[2]);
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}
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}
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}
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return $prev;
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}
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/**
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* Sets a user exception handler.
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*
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* @param callable(\Throwable $e)|null $handler
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*
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* @return callable|null The previous exception handler
|
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*/
|
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public function setExceptionHandler(?callable $handler): ?callable
|
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{
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$prev = $this->exceptionHandler;
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$this->exceptionHandler = $handler;
|
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return $prev;
|
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}
|
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/**
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* Sets the PHP error levels that throw an exception when a PHP error occurs.
|
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*
|
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* @param int $levels A bit field of E_* constants for thrown errors
|
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* @param bool $replace Replace or amend the previous value
|
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*
|
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* @return int The previous value
|
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*/
|
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public function throwAt(int $levels, bool $replace = false): int
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{
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$prev = $this->thrownErrors;
|
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$this->thrownErrors = ($levels | \E_RECOVERABLE_ERROR | \E_USER_ERROR) & ~\E_USER_DEPRECATED & ~\E_DEPRECATED;
|
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if (!$replace) {
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$this->thrownErrors |= $prev;
|
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}
|
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$this->reRegister($prev | $this->loggedErrors);
|
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return $prev;
|
||
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}
|
||
|
|
|
||
|
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/**
|
||
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* Sets the PHP error levels for which local variables are preserved.
|
||
|
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*
|
||
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* @param int $levels A bit field of E_* constants for scoped errors
|
||
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* @param bool $replace Replace or amend the previous value
|
||
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*
|
||
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* @return int The previous value
|
||
|
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*/
|
||
|
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public function scopeAt(int $levels, bool $replace = false): int
|
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{
|
||
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$prev = $this->scopedErrors;
|
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$this->scopedErrors = $levels;
|
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if (!$replace) {
|
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$this->scopedErrors |= $prev;
|
||
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}
|
||
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|
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return $prev;
|
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}
|
||
|
|
|
||
|
|
/**
|
||
|
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* Sets the PHP error levels for which the stack trace is preserved.
|
||
|
|
*
|
||
|
|
* @param int $levels A bit field of E_* constants for traced errors
|
||
|
|
* @param bool $replace Replace or amend the previous value
|
||
|
|
*
|
||
|
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* @return int The previous value
|
||
|
|
*/
|
||
|
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public function traceAt(int $levels, bool $replace = false): int
|
||
|
|
{
|
||
|
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$prev = $this->tracedErrors;
|
||
|
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$this->tracedErrors = $levels;
|
||
|
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if (!$replace) {
|
||
|
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$this->tracedErrors |= $prev;
|
||
|
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}
|
||
|
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|
||
|
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return $prev;
|
||
|
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}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Sets the error levels where the @-operator is ignored.
|
||
|
|
*
|
||
|
|
* @param int $levels A bit field of E_* constants for screamed errors
|
||
|
|
* @param bool $replace Replace or amend the previous value
|
||
|
|
*
|
||
|
|
* @return int The previous value
|
||
|
|
*/
|
||
|
|
public function screamAt(int $levels, bool $replace = false): int
|
||
|
|
{
|
||
|
|
$prev = $this->screamedErrors;
|
||
|
|
$this->screamedErrors = $levels;
|
||
|
|
if (!$replace) {
|
||
|
|
$this->screamedErrors |= $prev;
|
||
|
|
}
|
||
|
|
|
||
|
|
return $prev;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Re-registers as a PHP error handler if levels changed.
|
||
|
|
*/
|
||
|
|
private function reRegister(int $prev): void
|
||
|
|
{
|
||
|
|
if ($prev !== $this->thrownErrors | $this->loggedErrors) {
|
||
|
|
$handler = set_error_handler('var_dump');
|
||
|
|
$handler = \is_array($handler) ? $handler[0] : null;
|
||
|
|
restore_error_handler();
|
||
|
|
if ($handler === $this) {
|
||
|
|
restore_error_handler();
|
||
|
|
if ($this->isRoot) {
|
||
|
|
set_error_handler([$this, 'handleError'], $this->thrownErrors | $this->loggedErrors);
|
||
|
|
} else {
|
||
|
|
set_error_handler([$this, 'handleError']);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Handles errors by filtering then logging them according to the configured bit fields.
|
||
|
|
*
|
||
|
|
* @return bool Returns false when no handling happens so that the PHP engine can handle the error itself
|
||
|
|
*
|
||
|
|
* @throws \ErrorException When $this->thrownErrors requests so
|
||
|
|
*
|
||
|
|
* @internal
|
||
|
|
*/
|
||
|
|
public function handleError(int $type, string $message, string $file, int $line): bool
|
||
|
|
{
|
||
|
|
if (\PHP_VERSION_ID >= 70300 && \E_WARNING === $type && '"' === $message[0] && false !== strpos($message, '" targeting switch is equivalent to "break')) {
|
||
|
|
$type = \E_DEPRECATED;
|
||
|
|
}
|
||
|
|
|
||
|
|
// Level is the current error reporting level to manage silent error.
|
||
|
|
$level = error_reporting();
|
||
|
|
$silenced = 0 === ($level & $type);
|
||
|
|
// Strong errors are not authorized to be silenced.
|
||
|
|
$level |= \E_RECOVERABLE_ERROR | \E_USER_ERROR | \E_DEPRECATED | \E_USER_DEPRECATED;
|
||
|
|
$log = $this->loggedErrors & $type;
|
||
|
|
$throw = $this->thrownErrors & $type & $level;
|
||
|
|
$type &= $level | $this->screamedErrors;
|
||
|
|
|
||
|
|
// Never throw on warnings triggered by assert()
|
||
|
|
if (\E_WARNING === $type && 'a' === $message[0] && 0 === strncmp($message, 'assert(): ', 10)) {
|
||
|
|
$throw = 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (!$type || (!$log && !$throw)) {
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
|
||
|
|
$logMessage = $this->levels[$type].': '.$message;
|
||
|
|
|
||
|
|
if (null !== self::$toStringException) {
|
||
|
|
$errorAsException = self::$toStringException;
|
||
|
|
self::$toStringException = null;
|
||
|
|
} elseif (!$throw && !($type & $level)) {
|
||
|
|
if (!isset(self::$silencedErrorCache[$id = $file.':'.$line])) {
|
||
|
|
$lightTrace = $this->tracedErrors & $type ? $this->cleanTrace(debug_backtrace(\DEBUG_BACKTRACE_IGNORE_ARGS, 5), $type, $file, $line, false) : [];
|
||
|
|
$errorAsException = new SilencedErrorContext($type, $file, $line, isset($lightTrace[1]) ? [$lightTrace[0]] : $lightTrace);
|
||
|
|
} elseif (isset(self::$silencedErrorCache[$id][$message])) {
|
||
|
|
$lightTrace = null;
|
||
|
|
$errorAsException = self::$silencedErrorCache[$id][$message];
|
||
|
|
++$errorAsException->count;
|
||
|
|
} else {
|
||
|
|
$lightTrace = [];
|
||
|
|
$errorAsException = null;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (100 < ++self::$silencedErrorCount) {
|
||
|
|
self::$silencedErrorCache = $lightTrace = [];
|
||
|
|
self::$silencedErrorCount = 1;
|
||
|
|
}
|
||
|
|
if ($errorAsException) {
|
||
|
|
self::$silencedErrorCache[$id][$message] = $errorAsException;
|
||
|
|
}
|
||
|
|
if (null === $lightTrace) {
|
||
|
|
return true;
|
||
|
|
}
|
||
|
|
} else {
|
||
|
|
if (false !== strpos($message, '@anonymous')) {
|
||
|
|
$backtrace = debug_backtrace(false, 5);
|
||
|
|
|
||
|
|
for ($i = 1; isset($backtrace[$i]); ++$i) {
|
||
|
|
if (isset($backtrace[$i]['function'], $backtrace[$i]['args'][0])
|
||
|
|
&& ('trigger_error' === $backtrace[$i]['function'] || 'user_error' === $backtrace[$i]['function'])
|
||
|
|
) {
|
||
|
|
if ($backtrace[$i]['args'][0] !== $message) {
|
||
|
|
$message = $this->parseAnonymousClass($backtrace[$i]['args'][0]);
|
||
|
|
$logMessage = $this->levels[$type].': '.$message;
|
||
|
|
}
|
||
|
|
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
$errorAsException = new \ErrorException($logMessage, 0, $type, $file, $line);
|
||
|
|
|
||
|
|
if ($throw || $this->tracedErrors & $type) {
|
||
|
|
$backtrace = $errorAsException->getTrace();
|
||
|
|
$lightTrace = $this->cleanTrace($backtrace, $type, $file, $line, $throw);
|
||
|
|
($this->configureException)($errorAsException, $lightTrace, $file, $line);
|
||
|
|
} else {
|
||
|
|
($this->configureException)($errorAsException, []);
|
||
|
|
$backtrace = [];
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
if ($throw) {
|
||
|
|
if (\PHP_VERSION_ID < 70400 && \E_USER_ERROR & $type) {
|
||
|
|
for ($i = 1; isset($backtrace[$i]); ++$i) {
|
||
|
|
if (isset($backtrace[$i]['function'], $backtrace[$i]['type'], $backtrace[$i - 1]['function'])
|
||
|
|
&& '__toString' === $backtrace[$i]['function']
|
||
|
|
&& '->' === $backtrace[$i]['type']
|
||
|
|
&& !isset($backtrace[$i - 1]['class'])
|
||
|
|
&& ('trigger_error' === $backtrace[$i - 1]['function'] || 'user_error' === $backtrace[$i - 1]['function'])
|
||
|
|
) {
|
||
|
|
// Here, we know trigger_error() has been called from __toString().
|
||
|
|
// PHP triggers a fatal error when throwing from __toString().
|
||
|
|
// A small convention allows working around the limitation:
|
||
|
|
// given a caught $e exception in __toString(), quitting the method with
|
||
|
|
// `return trigger_error($e, E_USER_ERROR);` allows this error handler
|
||
|
|
// to make $e get through the __toString() barrier.
|
||
|
|
|
||
|
|
$context = 4 < \func_num_args() ? (func_get_arg(4) ?: []) : [];
|
||
|
|
|
||
|
|
foreach ($context as $e) {
|
||
|
|
if ($e instanceof \Throwable && $e->__toString() === $message) {
|
||
|
|
self::$toStringException = $e;
|
||
|
|
|
||
|
|
return true;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
// Display the original error message instead of the default one.
|
||
|
|
$this->handleException($errorAsException);
|
||
|
|
|
||
|
|
// Stop the process by giving back the error to the native handler.
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
throw $errorAsException;
|
||
|
|
}
|
||
|
|
|
||
|
|
if ($this->isRecursive) {
|
||
|
|
$log = 0;
|
||
|
|
} else {
|
||
|
|
if (\PHP_VERSION_ID < (\PHP_VERSION_ID < 70400 ? 70316 : 70404)) {
|
||
|
|
$currentErrorHandler = set_error_handler('var_dump');
|
||
|
|
restore_error_handler();
|
||
|
|
}
|
||
|
|
|
||
|
|
try {
|
||
|
|
$this->isRecursive = true;
|
||
|
|
$level = ($type & $level) ? $this->loggers[$type][1] : LogLevel::DEBUG;
|
||
|
|
$this->loggers[$type][0]->log($level, $logMessage, $errorAsException ? ['exception' => $errorAsException] : []);
|
||
|
|
} finally {
|
||
|
|
$this->isRecursive = false;
|
||
|
|
|
||
|
|
if (\PHP_VERSION_ID < (\PHP_VERSION_ID < 70400 ? 70316 : 70404)) {
|
||
|
|
set_error_handler($currentErrorHandler);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
return !$silenced && $type && $log;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Handles an exception by logging then forwarding it to another handler.
|
||
|
|
*
|
||
|
|
* @internal
|
||
|
|
*/
|
||
|
|
public function handleException(\Throwable $exception)
|
||
|
|
{
|
||
|
|
$handlerException = null;
|
||
|
|
|
||
|
|
if (!$exception instanceof FatalError) {
|
||
|
|
self::$exitCode = 255;
|
||
|
|
|
||
|
|
$type = ThrowableUtils::getSeverity($exception);
|
||
|
|
} else {
|
||
|
|
$type = $exception->getError()['type'];
|
||
|
|
}
|
||
|
|
|
||
|
|
if ($this->loggedErrors & $type) {
|
||
|
|
if (false !== strpos($message = $exception->getMessage(), "@anonymous\0")) {
|
||
|
|
$message = $this->parseAnonymousClass($message);
|
||
|
|
}
|
||
|
|
|
||
|
|
if ($exception instanceof FatalError) {
|
||
|
|
$message = 'Fatal '.$message;
|
||
|
|
} elseif ($exception instanceof \Error) {
|
||
|
|
$message = 'Uncaught Error: '.$message;
|
||
|
|
} elseif ($exception instanceof \ErrorException) {
|
||
|
|
$message = 'Uncaught '.$message;
|
||
|
|
} else {
|
||
|
|
$message = 'Uncaught Exception: '.$message;
|
||
|
|
}
|
||
|
|
|
||
|
|
try {
|
||
|
|
$this->loggers[$type][0]->log($this->loggers[$type][1], $message, ['exception' => $exception]);
|
||
|
|
} catch (\Throwable $handlerException) {
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
if (!$exception instanceof OutOfMemoryError) {
|
||
|
|
foreach ($this->getErrorEnhancers() as $errorEnhancer) {
|
||
|
|
if ($e = $errorEnhancer->enhance($exception)) {
|
||
|
|
$exception = $e;
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
$exceptionHandler = $this->exceptionHandler;
|
||
|
|
$this->exceptionHandler = [$this, 'renderException'];
|
||
|
|
|
||
|
|
if (null === $exceptionHandler || $exceptionHandler === $this->exceptionHandler) {
|
||
|
|
$this->exceptionHandler = null;
|
||
|
|
}
|
||
|
|
|
||
|
|
try {
|
||
|
|
if (null !== $exceptionHandler) {
|
||
|
|
return $exceptionHandler($exception);
|
||
|
|
}
|
||
|
|
$handlerException = $handlerException ?: $exception;
|
||
|
|
} catch (\Throwable $handlerException) {
|
||
|
|
}
|
||
|
|
if ($exception === $handlerException && null === $this->exceptionHandler) {
|
||
|
|
self::$reservedMemory = null; // Disable the fatal error handler
|
||
|
|
throw $exception; // Give back $exception to the native handler
|
||
|
|
}
|
||
|
|
|
||
|
|
$loggedErrors = $this->loggedErrors;
|
||
|
|
if ($exception === $handlerException) {
|
||
|
|
$this->loggedErrors &= ~$type;
|
||
|
|
}
|
||
|
|
|
||
|
|
try {
|
||
|
|
$this->handleException($handlerException);
|
||
|
|
} finally {
|
||
|
|
$this->loggedErrors = $loggedErrors;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Shutdown registered function for handling PHP fatal errors.
|
||
|
|
*
|
||
|
|
* @param array|null $error An array as returned by error_get_last()
|
||
|
|
*
|
||
|
|
* @internal
|
||
|
|
*/
|
||
|
|
public static function handleFatalError(array $error = null): void
|
||
|
|
{
|
||
|
|
if (null === self::$reservedMemory) {
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
$handler = self::$reservedMemory = null;
|
||
|
|
$handlers = [];
|
||
|
|
$previousHandler = null;
|
||
|
|
$sameHandlerLimit = 10;
|
||
|
|
|
||
|
|
while (!\is_array($handler) || !$handler[0] instanceof self) {
|
||
|
|
$handler = set_exception_handler('var_dump');
|
||
|
|
restore_exception_handler();
|
||
|
|
|
||
|
|
if (!$handler) {
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
restore_exception_handler();
|
||
|
|
|
||
|
|
if ($handler !== $previousHandler) {
|
||
|
|
array_unshift($handlers, $handler);
|
||
|
|
$previousHandler = $handler;
|
||
|
|
} elseif (0 === --$sameHandlerLimit) {
|
||
|
|
$handler = null;
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
foreach ($handlers as $h) {
|
||
|
|
set_exception_handler($h);
|
||
|
|
}
|
||
|
|
if (!$handler) {
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
if ($handler !== $h) {
|
||
|
|
$handler[0]->setExceptionHandler($h);
|
||
|
|
}
|
||
|
|
$handler = $handler[0];
|
||
|
|
$handlers = [];
|
||
|
|
|
||
|
|
if ($exit = null === $error) {
|
||
|
|
$error = error_get_last();
|
||
|
|
}
|
||
|
|
|
||
|
|
if ($error && $error['type'] &= \E_PARSE | \E_ERROR | \E_CORE_ERROR | \E_COMPILE_ERROR) {
|
||
|
|
// Let's not throw anymore but keep logging
|
||
|
|
$handler->throwAt(0, true);
|
||
|
|
$trace = $error['backtrace'] ?? null;
|
||
|
|
|
||
|
|
if (0 === strpos($error['message'], 'Allowed memory') || 0 === strpos($error['message'], 'Out of memory')) {
|
||
|
|
$fatalError = new OutOfMemoryError($handler->levels[$error['type']].': '.$error['message'], 0, $error, 2, false, $trace);
|
||
|
|
} else {
|
||
|
|
$fatalError = new FatalError($handler->levels[$error['type']].': '.$error['message'], 0, $error, 2, true, $trace);
|
||
|
|
}
|
||
|
|
} else {
|
||
|
|
$fatalError = null;
|
||
|
|
}
|
||
|
|
|
||
|
|
try {
|
||
|
|
if (null !== $fatalError) {
|
||
|
|
self::$exitCode = 255;
|
||
|
|
$handler->handleException($fatalError);
|
||
|
|
}
|
||
|
|
} catch (FatalError $e) {
|
||
|
|
// Ignore this re-throw
|
||
|
|
}
|
||
|
|
|
||
|
|
if ($exit && self::$exitCode) {
|
||
|
|
$exitCode = self::$exitCode;
|
||
|
|
register_shutdown_function('register_shutdown_function', function () use ($exitCode) { exit($exitCode); });
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Renders the given exception.
|
||
|
|
*
|
||
|
|
* As this method is mainly called during boot where nothing is yet available,
|
||
|
|
* the output is always either HTML or CLI depending where PHP runs.
|
||
|
|
*/
|
||
|
|
private function renderException(\Throwable $exception): void
|
||
|
|
{
|
||
|
|
$renderer = \in_array(\PHP_SAPI, ['cli', 'phpdbg'], true) ? new CliErrorRenderer() : new HtmlErrorRenderer($this->debug);
|
||
|
|
|
||
|
|
$exception = $renderer->render($exception);
|
||
|
|
|
||
|
|
if (!headers_sent()) {
|
||
|
|
http_response_code($exception->getStatusCode());
|
||
|
|
|
||
|
|
foreach ($exception->getHeaders() as $name => $value) {
|
||
|
|
header($name.': '.$value, false);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
echo $exception->getAsString();
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Override this method if you want to define more error enhancers.
|
||
|
|
*
|
||
|
|
* @return ErrorEnhancerInterface[]
|
||
|
|
*/
|
||
|
|
protected function getErrorEnhancers(): iterable
|
||
|
|
{
|
||
|
|
return [
|
||
|
|
new UndefinedFunctionErrorEnhancer(),
|
||
|
|
new UndefinedMethodErrorEnhancer(),
|
||
|
|
new ClassNotFoundErrorEnhancer(),
|
||
|
|
];
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Cleans the trace by removing function arguments and the frames added by the error handler and DebugClassLoader.
|
||
|
|
*/
|
||
|
|
private function cleanTrace(array $backtrace, int $type, string &$file, int &$line, bool $throw): array
|
||
|
|
{
|
||
|
|
$lightTrace = $backtrace;
|
||
|
|
|
||
|
|
for ($i = 0; isset($backtrace[$i]); ++$i) {
|
||
|
|
if (isset($backtrace[$i]['file'], $backtrace[$i]['line']) && $backtrace[$i]['line'] === $line && $backtrace[$i]['file'] === $file) {
|
||
|
|
$lightTrace = \array_slice($lightTrace, 1 + $i);
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
if (\E_USER_DEPRECATED === $type) {
|
||
|
|
for ($i = 0; isset($lightTrace[$i]); ++$i) {
|
||
|
|
if (!isset($lightTrace[$i]['file'], $lightTrace[$i]['line'], $lightTrace[$i]['function'])) {
|
||
|
|
continue;
|
||
|
|
}
|
||
|
|
if (!isset($lightTrace[$i]['class']) && 'trigger_deprecation' === $lightTrace[$i]['function']) {
|
||
|
|
$file = $lightTrace[$i]['file'];
|
||
|
|
$line = $lightTrace[$i]['line'];
|
||
|
|
$lightTrace = \array_slice($lightTrace, 1 + $i);
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
if (class_exists(DebugClassLoader::class, false)) {
|
||
|
|
for ($i = \count($lightTrace) - 2; 0 < $i; --$i) {
|
||
|
|
if (DebugClassLoader::class === ($lightTrace[$i]['class'] ?? null)) {
|
||
|
|
array_splice($lightTrace, --$i, 2);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
if (!($throw || $this->scopedErrors & $type)) {
|
||
|
|
for ($i = 0; isset($lightTrace[$i]); ++$i) {
|
||
|
|
unset($lightTrace[$i]['args'], $lightTrace[$i]['object']);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
return $lightTrace;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Parse the error message by removing the anonymous class notation
|
||
|
|
* and using the parent class instead if possible.
|
||
|
|
*/
|
||
|
|
private function parseAnonymousClass(string $message): string
|
||
|
|
{
|
||
|
|
return preg_replace_callback('/[a-zA-Z_\x7f-\xff][\\\\a-zA-Z0-9_\x7f-\xff]*+@anonymous\x00.*?\.php(?:0x?|:[0-9]++\$)[0-9a-fA-F]++/', static function ($m) {
|
||
|
|
return class_exists($m[0], false) ? (get_parent_class($m[0]) ?: key(class_implements($m[0])) ?: 'class').'@anonymous' : $m[0];
|
||
|
|
}, $message);
|
||
|
|
}
|
||
|
|
}
|