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|
<?php
namespace JsonApi\Errors;
use Neomerx\JsonApi\Exceptions\JsonApiException;
use Neomerx\JsonApi\Schema\Error;
use Neomerx\JsonApi\Schema\ErrorCollection;
use Psr\Http\Message\ResponseInterface;
use Psr\Http\Message\ServerRequestInterface;
use Psr\Log\LoggerInterface;
use Slim\App;
use Slim\Exception\HttpException;
use Throwable;
class ErrorHandler
{
/** @var \Slim\App */
private $app;
public function __construct(App $app)
{
$this->app = $app;
}
public function __invoke(
ServerRequestInterface $request,
Throwable $exception,
bool $displayErrorDetails,
bool $logErrors,
bool $logErrorDetails,
?LoggerInterface $logger = null
): ResponseInterface {
if ($logger) {
$logger->error($exception->getMessage());
}
$response = $this->app->getResponseFactory()->createResponse();
$response = $response->withHeader('Content-Type', 'application/json');
$response->getBody()->write($this->determinePayload($exception, $displayErrorDetails));
$code = $this->determineStatusCode($exception, $request->getMethod());
if ($code >= 500) {
error_log($exception);
}
return $response->withStatus($code);
}
protected function determineStatusCode(Throwable $exception, string $method): int
{
if ('OPTIONS' === $method) {
return 200;
}
if ($exception instanceof HttpException) {
return $exception->getCode();
}
if ($exception instanceof JsonApiException) {
return $exception->getHttpCode();
}
return 500;
}
protected function determinePayload(Throwable $exception, bool $displayErrorDetails): string
{
$message = '';
if ($exception instanceof JsonApiException) {
$httpCode = $exception->getHttpCode();
$errors = new ErrorCollection();
foreach ($exception->getErrors() as $error) {
$errors[] = $this->copyError($error, $displayErrorDetails, $exception);
}
} elseif ($exception instanceof HttpException) {
$errors = $this->createErrorCollection(
$exception->getCode(),
$exception->getMessage(),
$exception->getDescription(),
$exception,
$displayErrorDetails
);
} else {
$errors = $this->createErrorCollection(
'500',
$exception->getMessage(),
null,
$exception,
$displayErrorDetails
);
}
if (sizeof($errors)) {
$encoder = $this->app->getContainer()->get('json-api-error-encoder');
return $encoder->encodeErrors($errors);
}
return '';
}
private function createErrorCollection(
string $httpCode,
string $message,
?string $details,
Throwable $exception,
bool $displayErrorDetails
): ErrorCollection {
/** @var \Exception $exception */
$errors = new ErrorCollection();
$errors->add(
new Error(
null,
null,
null,
$httpCode,
null,
$message,
$details,
$displayErrorDetails ? ['backtrace' => explode("\n", $exception->getTraceAsString())] : null
)
);
return $errors;
}
private function copyError(Error $error, bool $displayErrorDetails, JsonApiException $exception): Error
{
$newError = new Error(
$error->getId(),
$error->getLinks(),
$error->getTypeLinks(),
$error->getStatus(),
$error->getCode(),
$error->getTitle(),
$error->getDetail(),
$displayErrorDetails ? ['backtrace' => explode("\n", $exception->getTraceAsString())] : null,
false,
$error->getMeta()
);
return $newError;
}
}
|
