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Handler.php
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<?php
namespace BookStack\Exceptions;
use Illuminate\Auth\AuthenticationException;
use Illuminate\Database\Eloquent\ModelNotFoundException;
use Illuminate\Foundation\Exceptions\Handler as ExceptionHandler;
use Illuminate\Http\Exceptions\PostTooLargeException;
use Illuminate\Http\JsonResponse;
use Illuminate\Http\Request;
use Illuminate\Http\Response;
use Illuminate\Validation\ValidationException;
use Symfony\Component\ErrorHandler\Error\FatalError;
use Symfony\Component\HttpFoundation\Response as SymfonyResponse;
use Symfony\Component\HttpKernel\Exception\HttpExceptionInterface;
use Throwable;
class Handler extends ExceptionHandler
{
/**
* A list of the exception types that are not reported.
*
* @var array<int, class-string<Throwable>>
*/
protected $dontReport = [
NotFoundException::class,
StoppedAuthenticationException::class,
];
/**
* A list of the inputs that are never flashed to the session on validation exceptions.
*
* @var array<int, string>
*/
protected $dontFlash = [
'current_password',
'password',
'password_confirmation',
];
/**
* A function to run upon out of memory.
* If it returns a response, that will be provided back to the request
* upon an out of memory event.
*
* @var ?callable(): ?Response
*/
protected $onOutOfMemory = null;
/**
* Report or log an exception.
*
* @param Throwable $exception
*
* @return void
*@throws Throwable
*
*/
public function report(Throwable $exception)
{
parent::report($exception);
}
/**
* Render an exception into an HTTP response.
*
* @param Request $request
*/
public function render($request, Throwable $e): SymfonyResponse
{
if ($e instanceof FatalError && str_contains($e->getMessage(), 'bytes exhausted (tried to allocate') && $this->onOutOfMemory) {
$response = call_user_func($this->onOutOfMemory);
if ($response) {
return $response;
}
}
if ($e instanceof PostTooLargeException) {
$e = new NotifyException(trans('errors.server_post_limit'), '/', 413);
}
if ($this->isApiRequest($request)) {
return $this->renderApiException($e);
}
return parent::render($request, $e);
}
/**
* Provide a function to be called when an out of memory event occurs.
* If the callable returns a response, this response will be returned
* to the request upon error.
*/
public function prepareForOutOfMemory(callable $onOutOfMemory): void
{
$this->onOutOfMemory = $onOutOfMemory;
}
/**
* Forget the current out of memory handler, if existing.
*/
public function forgetOutOfMemoryHandler(): void
{
$this->onOutOfMemory = null;
}
/**
* Check if the given request is an API request.
*/
protected function isApiRequest(Request $request): bool
{
return str_starts_with($request->path(), 'api/');
}
/**
* Render an exception when the API is in use.
*/
protected function renderApiException(Throwable $e): JsonResponse
{
$code = 500;
$headers = [];
if ($e instanceof HttpExceptionInterface) {
$code = $e->getStatusCode();
$headers = $e->getHeaders();
}
if ($e instanceof ModelNotFoundException) {
$code = 404;
}
$responseData = [
'error' => [
'message' => $e->getMessage(),
],
];
if ($e instanceof ValidationException) {
$responseData['error']['message'] = 'The given data was invalid.';
$responseData['error']['validation'] = $e->errors();
$code = $e->status;
}
$responseData['error']['code'] = $code;
return new JsonResponse($responseData, $code, $headers);
}
/**
* Convert an authentication exception into an unauthenticated response.
*
* @param Request $request
*/
protected function unauthenticated($request, AuthenticationException $exception): SymfonyResponse
{
if ($request->expectsJson()) {
return response()->json(['error' => 'Unauthenticated.'], 401);
}
return redirect()->guest('login');
}
/**
* Convert a validation exception into a JSON response.
*
* @param Request $request
*/
protected function invalidJson($request, ValidationException $exception): JsonResponse
{
return response()->json($exception->errors(), $exception->status);
}
}