CodeExplorer

HtmlErrorRenderer example

    private Environment $twig;
    private HtmlErrorRenderer $fallbackErrorRenderer;
    private \Closure|bool $debug;

    /** * @param bool|callable $debug The debugging mode as a boolean or a callable that should return it */
    public function __construct(Environment $twig, HtmlErrorRenderer $fallbackErrorRenderer = null, bool|callable $debug = false)
    {
        $this->twig = $twig;
        $this->fallbackErrorRenderer = $fallbackErrorRenderer ?? new HtmlErrorRenderer();
        $this->debug = \is_bool($debug) ? $debug : $debug(...);
    }

    public function render(\Throwable $exception): FlattenException
    {
        $flattenException = FlattenException::createFromThrowable($exception);
        $debug = \is_bool($this->debug) ? $this->debug : ($this->debug)($flattenException);

        if ($debug || !$template = $this->findTemplate($flattenException->getStatusCode())) {
            return $this->fallbackErrorRenderer->render($exception);
        }

private bool|\Closure $debug;

    /** * @param string|callable(FlattenException) $format The format as a string or a callable that should return it * formats not supported by Request::getMimeTypes() should be given as mime types * @param bool|callable $debug The debugging mode as a boolean or a callable that should return it */
    public function __construct(SerializerInterface $serializer, string|callable $format, ErrorRendererInterface $fallbackErrorRenderer = null, bool|callable $debug = false)
    {
        $this->serializer = $serializer;
        $this->format = \is_string($format) ? $format : $format(...);
        $this->fallbackErrorRenderer = $fallbackErrorRenderer ?? new HtmlErrorRenderer();
        $this->debug = \is_bool($debug) ? $debug : $debug(...);
    }

    public function render(\Throwable $exception): FlattenException
    {
        $headers = ['Vary' => 'Accept'];
        $debug = \is_bool($this->debug) ? $this->debug : ($this->debug)($exception);
        if ($debug) {
            $headers['X-Debug-Exception'] = rawurlencode($exception->getMessage());
            $headers['X-Debug-Exception-File'] = rawurlencode($exception->getFile()).':'.$exception->getLine();
        }

HTML;

        $expectedNonDebug = <<<HTML <!DOCTYPE html> <html lang="en"> %A<title>An Error Occurred: Internal Server Error</title> %A<h2>The server returned a "500 Internal Server Error".</h2>%A HTML;

        yield '->render() returns the HTML content WITH stack traces in debug mode' => [
            new \RuntimeException('Foo'),
            new HtmlErrorRenderer(true),
            $expectedDebug,
        ];

        yield '->render() returns the HTML content WITHOUT stack traces in non-debug mode' => [
            new \RuntimeException('Foo'),
            new HtmlErrorRenderer(false),
            $expectedNonDebug,
        ];
    }
}

use Symfony\Component\HttpKernel\Exception\NotFoundHttpException;
use Symfony\Component\HttpKernel\HttpKernelInterface;

class ErrorControllerTest extends TestCase
{
    /** * @dataProvider getInvokeControllerDataProvider */
    public function testInvokeController(Request $request, \Exception $exception, int $statusCode, string $content)
    {
        $kernel = $this->createMock(HttpKernelInterface::class);
        $errorRenderer = new HtmlErrorRenderer();
        $controller = new ErrorController($kernel, null, $errorRenderer);
        $response = $controller($exception);

        $this->assertSame($statusCode, $response->getStatusCode());
        self::assertStringContainsString($content, strtr($response->getContent(), ["\n" => '', ' ' => '']));
    }

    public static function getInvokeControllerDataProvider()
    {
        yield 'default status code and HTML format' => [
            new Request(),

    }

    /** * 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);
            }
        }