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<?php |
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declare(strict_types=1); |
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namespace Conia\Error; |
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use ErrorException; |
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use Psr\Http\Message\ResponseFactoryInterface as ResponseFactory; |
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use Psr\Http\Message\ResponseInterface as Response; |
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use Psr\Http\Message\ServerRequestInterface as Request; |
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use Psr\Http\Server\MiddlewareInterface as Middleware; |
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use Psr\Http\Server\RequestHandlerInterface as RequestHandler; |
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use Psr\Log\LoggerInterface as Logger; |
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use Throwable; |
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/** @psalm-api */ |
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class Handler implements Middleware |
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{ |
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protected ?Logger $logger = null; |
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protected ?DebugHandler $debugHandler = null; |
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/** @var RendererEntry[] */ |
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protected array $renderers = []; |
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protected ?RendererEntry $defaultRenderer = null; |
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public function __construct( |
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protected readonly ResponseFactory $responseFactory, |
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protected readonly bool $debug = false, |
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) { |
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set_error_handler([$this, 'handleError'], E_ALL); |
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set_exception_handler([$this, 'emitException']); |
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} |
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public function debugHandler(DebugHandler $debugHandler): void |
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{ |
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$this->debugHandler = $debugHandler; |
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} |
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public function __destruct() |
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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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public function logger(?Logger $logger = null): void |
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{ |
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$this->logger = $logger; |
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} |
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public function process(Request $request, RequestHandler $handler): Response |
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{ |
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try { |
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return $handler->handle($request); |
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} catch (Throwable $e) { |
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return $this->getResponse($e, $request); |
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} |
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} |
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/** |
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* @param class-string<Throwable>|class-string<Throwable>[] $exceptions |
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*/ |
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public function renderer(Renderer $renderer, string|array|null $exceptions = null): RendererEntry |
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{ |
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if ($exceptions === null) { |
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$rendererEntry = new RendererEntry([], $renderer); |
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$this->defaultRenderer = $rendererEntry; |
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return $rendererEntry; |
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} |
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$renderEntry = new RendererEntry((array)$exceptions, $renderer); |
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$this->renderers[] = $renderEntry; |
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return $renderEntry; |
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} |
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public function handleError( |
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int $level, |
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string $message, |
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string $file = '', |
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int $line = 0, |
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): bool { |
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if ($level & error_reporting()) { |
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throw new ErrorException($message, $level, $level, $file, $line); |
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} |
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return false; |
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} |
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public function emitException(Throwable $exception): void |
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{ |
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$response = $this->getResponse($exception, null); |
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echo (string)$response->getBody(); |
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} |
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public function getResponse(Throwable $exception, ?Request $request): Response |
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{ |
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$renderer = null; |
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$logLevel = null; |
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foreach ($this->renderers as $rendererEntry) { |
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if ($rendererEntry->matches($exception)) { |
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$renderer = $rendererEntry->renderer; |
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$logLevel = $rendererEntry->getLogLevel(); |
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break; |
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} |
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} |
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if (!is_null($logLevel)) { |
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$this->log($logLevel, $exception); |
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} |
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if ($renderer) { |
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return $renderer->render( |
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$exception, |
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$this->responseFactory, |
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$request, |
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$this->debug, |
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); |
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} |
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if ($this->debug) { |
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if ($this->debugHandler) { |
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return $this->debugHandler->handle($exception, $this->responseFactory); |
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} |
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throw $exception; |
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} |
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$this->logUnmatched($exception); |
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if ($this->defaultRenderer) { |
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return $this->defaultRenderer->renderer->render( |
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$exception, |
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$this->responseFactory, |
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$request, |
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$this->debug, |
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); |
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} |
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$response = $this->responseFactory->createResponse(500)->withHeader('Content-Type', 'text/html') ; |
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$response->getBody()->write('<h1>500 Internal Server Error</h1>'); |
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return $response; |
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} |
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protected function log(string|int $logLevel, Throwable $exception): void |
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{ |
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if ($this->logger) { |
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$this->logger->log($logLevel, 'Matched Exception:', ['exception' => $exception]); |
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} |
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} |
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protected function logUnmatched(Throwable $exception): void |
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{ |
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if ($this->logger) { |
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$this->logger->alert('Unmatched Exception:', ['exception' => $exception]); |
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} |
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} |
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} |
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