BookStack/app/Exceptions/Handler.php

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<?php
namespace BookStack\Exceptions;
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use Exception;
use Illuminate\Auth\Access\AuthorizationException;
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use Illuminate\Auth\AuthenticationException;
use Illuminate\Database\Eloquent\ModelNotFoundException;
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use Illuminate\Foundation\Exceptions\Handler as ExceptionHandler;
use Illuminate\Http\JsonResponse;
use Illuminate\Http\Request;
use Illuminate\Validation\ValidationException;
use Symfony\Component\HttpKernel\Exception\HttpException;
use Symfony\Component\HttpKernel\Exception\NotFoundHttpException;
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class Handler extends ExceptionHandler
{
/**
* A list of the exception types that should not be reported.
*
* @var array
*/
protected $dontReport = [
AuthorizationException::class,
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HttpException::class,
ModelNotFoundException::class,
ValidationException::class,
NotFoundException::class,
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];
/**
* Report or log an exception.
* This is a great spot to send exceptions to Sentry, Bugsnag, etc.
*
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* @param \Exception $e
* @return mixed
* @throws Exception
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*/
public function report(Exception $e)
{
return parent::report($e);
}
/**
* Render an exception into an HTTP response.
*
* @param \Illuminate\Http\Request $request
* @param \Exception $e
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* @return \Illuminate\Http\Response
*/
public function render($request, Exception $e)
{
if ($this->isApiRequest($request)) {
return $this->renderApiException($e);
}
// Handle notify exceptions which will redirect to the
// specified location then show a notification message.
if ($this->isExceptionType($e, NotifyException::class)) {
$message = $this->getOriginalMessage($e);
if (!empty($message)) {
session()->flash('error', $message);
}
return redirect($e->redirectLocation);
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}
// Handle pretty exceptions which will show a friendly application-fitting page
// Which will include the basic message to point the user roughly to the cause.
if ($this->isExceptionType($e, PrettyException::class) && !config('app.debug')) {
$message = $this->getOriginalMessage($e);
$code = ($e->getCode() === 0) ? 500 : $e->getCode();
return response()->view('errors/' . $code, ['message' => $message], $code);
}
// Handle 404 errors with a loaded session to enable showing user-specific information
if ($this->isExceptionType($e, NotFoundHttpException::class)) {
return \Route::respondWithRoute('fallback');
}
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return parent::render($request, $e);
}
/**
* Check if the given request is an API request.
*/
protected function isApiRequest(Request $request): bool
{
return strpos($request->path(), 'api/') === 0;
}
/**
* Render an exception when the API is in use.
*/
protected function renderApiException(Exception $e): JsonResponse
{
$code = $e->getCode() === 0 ? 500 : $e->getCode();
$headers = [];
if ($e instanceof HttpException) {
$code = $e->getStatusCode();
$headers = $e->getHeaders();
}
$responseData = [
'error' => [
'message' => $e->getMessage(),
]
];
if ($e instanceof ValidationException) {
$responseData['error']['validation'] = $e->errors();
$code = $e->status;
}
$responseData['error']['code'] = $code;
return new JsonResponse($responseData, $code, $headers);
}
/**
* Check the exception chain to compare against the original exception type.
* @param Exception $e
* @param $type
* @return bool
*/
protected function isExceptionType(Exception $e, $type)
{
do {
if (is_a($e, $type)) {
return true;
}
} while ($e = $e->getPrevious());
return false;
}
/**
* Get original exception message.
* @param Exception $e
* @return string
*/
protected function getOriginalMessage(Exception $e)
{
do {
$message = $e->getMessage();
} while ($e = $e->getPrevious());
return $message;
}
/**
* Convert an authentication exception into an unauthenticated response.
*
* @param \Illuminate\Http\Request $request
* @param \Illuminate\Auth\AuthenticationException $exception
* @return \Illuminate\Http\Response
*/
protected function unauthenticated($request, AuthenticationException $exception)
{
if ($request->expectsJson()) {
return response()->json(['error' => 'Unauthenticated.'], 401);
}
return redirect()->guest('login');
}
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/**
* Convert a validation exception into a JSON response.
*
* @param \Illuminate\Http\Request $request
* @param \Illuminate\Validation\ValidationException $exception
* @return \Illuminate\Http\JsonResponse
*/
protected function invalidJson($request, ValidationException $exception)
{
return response()->json($exception->errors(), $exception->status);
}
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}