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feat(handlers): add basic Shutdown and HttpError handlers #199
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<?php | ||
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namespace Flextype\Foundation\Handlers; | ||
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use Psr\Http\Message\ResponseInterface; | ||
use Slim\Exception\HttpBadRequestException; | ||
use Slim\Exception\HttpException; | ||
use Slim\Exception\HttpForbiddenException; | ||
use Slim\Exception\HttpMethodNotAllowedException; | ||
use Slim\Exception\HttpNotFoundException; | ||
use Slim\Exception\HttpNotImplementedException; | ||
use Slim\Exception\HttpUnauthorizedException; | ||
use Slim\Handlers\ErrorHandler; | ||
use Exception; | ||
use Throwable; | ||
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class HttpErrorHandler extends ErrorHandler | ||
{ | ||
public const BAD_REQUEST = 'BAD_REQUEST'; | ||
public const INSUFFICIENT_PRIVILEGES = 'INSUFFICIENT_PRIVILEGES'; | ||
public const NOT_ALLOWED = 'NOT_ALLOWED'; | ||
public const NOT_IMPLEMENTED = 'NOT_IMPLEMENTED'; | ||
public const RESOURCE_NOT_FOUND = 'RESOURCE_NOT_FOUND'; | ||
public const SERVER_ERROR = 'SERVER_ERROR'; | ||
public const UNAUTHENTICATED = 'UNAUTHENTICATED'; | ||
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protected function respond(): ResponseInterface | ||
{ | ||
$exception = $this->exception; | ||
$statusCode = 500; | ||
$type = self::SERVER_ERROR; | ||
$description = 'An internal error has occurred while processing your request.'; | ||
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if ($exception instanceof HttpException) { | ||
$statusCode = $exception->getCode(); | ||
$description = $exception->getMessage(); | ||
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if ($exception instanceof HttpNotFoundException) { | ||
$type = self::RESOURCE_NOT_FOUND; | ||
} elseif ($exception instanceof HttpMethodNotAllowedException) { | ||
$type = self::NOT_ALLOWED; | ||
} elseif ($exception instanceof HttpUnauthorizedException) { | ||
$type = self::UNAUTHENTICATED; | ||
} elseif ($exception instanceof HttpForbiddenException) { | ||
$type = self::UNAUTHENTICATED; | ||
} elseif ($exception instanceof HttpBadRequestException) { | ||
$type = self::BAD_REQUEST; | ||
} elseif ($exception instanceof HttpNotImplementedException) { | ||
$type = self::NOT_IMPLEMENTED; | ||
} | ||
} | ||
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if ( | ||
!($exception instanceof HttpException) | ||
&& ($exception instanceof Exception || $exception instanceof Throwable) | ||
&& $this->displayErrorDetails | ||
) { | ||
$description = $exception->getMessage(); | ||
} | ||
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$error = [ | ||
'statusCode' => $statusCode, | ||
'error' => [ | ||
'type' => $type, | ||
'description' => $description, | ||
], | ||
]; | ||
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$payload = json_encode($error, JSON_PRETTY_PRINT); | ||
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$response = $this->responseFactory->createResponse($statusCode); | ||
$response->getBody()->write($payload); | ||
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return $response; | ||
} | ||
} |
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Original file line number | Diff line number | Diff line change |
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@@ -0,0 +1,83 @@ | ||
<?php | ||
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namespace Flextype\Foundation\Handlers; | ||
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use Flextype\Foundation\Handlers\HttpErrorHandler; | ||
use Psr\Http\Message\ServerRequestInterface as Request; | ||
use Slim\Exception\HttpInternalServerErrorException; | ||
use Slim\ResponseEmitter; | ||
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class ShutdownHandler | ||
{ | ||
/** | ||
* @var Request | ||
*/ | ||
private $request; | ||
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/** | ||
* @var HttpErrorHandler | ||
*/ | ||
private $errorHandler; | ||
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/** | ||
* @var bool | ||
*/ | ||
private $displayErrorDetails; | ||
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/** | ||
* ShutdownHandler constructor. | ||
* | ||
* @param Request $request | ||
* @param HttpErrorHandler $errorHandler | ||
* @param bool $displayErrorDetails | ||
*/ | ||
public function __construct(Request $request, HttpErrorHandler $errorHandler, bool $displayErrorDetails) { | ||
$this->request = $request; | ||
$this->errorHandler = $errorHandler; | ||
$this->displayErrorDetails = $displayErrorDetails; | ||
} | ||
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public function __invoke() | ||
{ | ||
$error = error_get_last(); | ||
if ($error) { | ||
$errorFile = $error['file']; | ||
$errorLine = $error['line']; | ||
$errorMessage = $error['message']; | ||
$errorType = $error['type']; | ||
$message = 'An error while processing your request. Please try again later.'; | ||
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if ($this->displayErrorDetails) { | ||
switch ($errorType) { | ||
case E_USER_ERROR: | ||
$message = "FATAL ERROR: {$errorMessage}. "; | ||
$message .= " on line {$errorLine} in file {$errorFile}."; | ||
break; | ||
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case E_USER_WARNING: | ||
$message = "WARNING: {$errorMessage}"; | ||
break; | ||
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case E_USER_NOTICE: | ||
$message = "NOTICE: {$errorMessage}"; | ||
break; | ||
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default: | ||
$message = "ERROR: {$errorMessage}"; | ||
$message .= " on line {$errorLine} in file {$errorFile}."; | ||
break; | ||
} | ||
} | ||
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$exception = new HttpInternalServerErrorException($this->request, $message); | ||
$response = $this->errorHandler->__invoke($this->request, $exception, $this->displayErrorDetails, false, false); | ||
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if (ob_get_length()) { | ||
ob_clean(); | ||
} | ||
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$responseEmitter = new ResponseEmitter(); | ||
$responseEmitter->emit($response); | ||
} | ||
} | ||
} |